WO2000014226A1 - Nouvelle proteine et son procede de production - Google Patents
Nouvelle proteine et son procede de production Download PDFInfo
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- WO2000014226A1 WO2000014226A1 PCT/JP1999/004765 JP9904765W WO0014226A1 WO 2000014226 A1 WO2000014226 A1 WO 2000014226A1 JP 9904765 W JP9904765 W JP 9904765W WO 0014226 A1 WO0014226 A1 WO 0014226A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to novel secretory proteins.
- cytodynamics are secretory factors involved in the immune system and hematopoietic system. These include lymphokines, monoforceins, interferons, colony stimulating factors, and tumor necrosis factors.
- Humoral factors such as peptide hormones and growth factors produced by endocrine tissues also play a very important role in maintaining homeostasis and growing. These are also being actively pursued for use as pharmaceuticals.
- These proteinaceous factors important for living organisms have been discovered using biological activity as an index.
- discoveries have been added using homology to known bioactive proteins as an index. Because complex organisms, especially mammals, are healthy, it is thought that there are many unknown proteinaceous factors with biological activity other than those that have been found so far.
- an enormous number of novel genes have been found due to large-scale sequencing of cDNA libraries, etc., but the sequence information is fragmentary and inaccurate. It is not easy to select gene products.
- the present invention includes a novel protein usable in biology, medicine, veterinary medicine and the like, a partial peptide thereof, or a salt thereof, a recombinant vector, a transformant, a method for producing the protein, the protein, and a partial peptide. And an antibody against the protein and the like.
- the present inventors have conducted intensive studies to solve the above problems, and as a result, succeeded in discovering a cDNA having a novel nucleotide sequence that is frequently expressed in lung, trachea, stomach, and the like. They found that the protein encoded by them was a humoral factor that was actually secreted extracellularly. The present inventors have further studied based on these findings, and as a result, completed the present invention.
- a protein or a salt thereof which comprises an amino acid sequence identical or substantially identical to the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3,
- the protein according to (1) or (2) which comprises the protein according to (1) or the partial peptide according to (2) or a salt thereof.
- the protein of (1) or the partial peptide of (2) or a salt thereof which can be obtained by using the screening method of (5) or the screening kit of (6).
- a pharmaceutical comprising a compound that promotes or inhibits the activity or a salt thereof,
- (11) an amino acid sequence substantially identical to the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3, the amino acid represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 About 50% or more (preferably about 60% or more, more preferably about 70% or more, more preferably about 80% or more, particularly preferably about 90% or more, and most preferably about 95% or more) with the sequence.
- the protein according to the above (1) which is an amino acid sequence having
- amino acid sequence substantially identical to the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 is represented by (1) SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 An amino acid sequence in which one or more (preferably about 1 to 30) amino acids have been deleted in the amino acid sequence to be deleted, (2) the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 An amino acid sequence to which one or more (preferably about 1 to 30) amino acids have been added; 3 one or two amino acids in the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3
- the protein according to the above (1) which is an amino acid sequence in which the above (preferably about 1 to 30) amino acids are substituted with another amino acid, or an amino acid sequence obtained by combining them.
- a digestive organ disease such as an immune disease, a respiratory disease such as a pulmonary dysfunction, a renal dysfunction, an infectious disease or a gastrointestinal dysfunction.
- the present invention can be used not only for basic research such as molecular weight markers, tissue markers, chromosome mapping, genetic disease identification, primer and probe design, but also for cancer metastasis inhibition, cancer metastasis detection, and cell differentiation. It can be used for therapeutic or preventive purposes in the fields of regulation of proliferation, induction of cytotoxicity, regulation of angiogenesis, regulation of hematopoiesis, regulation of blood coagulation, infectious diseases, metabolic regulation, wound burn healing, anti-inflammation, gene therapy, etc. There is.
- bronchial related diseases eg, bronchitis, influenza infection, bronchial asthma, upper respiratory tract, bronchiectasis, etc.
- lung related diseases lung cancer, tuberculosis, pneumonia, emphysema, lung infarction, pulmonary infarction, pulmonary congestion, respiration Insufficiency, cystic pulmonary fibrosis, pulmonary sarcoidosis, pulmonary edema, pulmonary hypertension, pneumoconiosis, etc.
- stomach-related diseases eg, Helicopaque Yuichi / H.
- FIG. 1 shows the nucleotide sequence of DNA encoding the protein of the present invention obtained in Example 1 and the amino acid sequence deduced from the nucleotide sequence.
- FIG. 2 shows the nucleotide sequence of rat TGC-440 obtained in Example 3 and the deduced amino acid sequence.
- FIG. 3 shows the nucleotide sequence of mouse TGC-440 obtained in Example 4 and the nucleotide sequence. Shows the amino acid sequence deduced from.
- FIG. 4 shows a restriction enzyme map of the animal cell expression vector pCAN618 obtained in Reference Example.
- FIG. 5 shows the results of a Western plot performed in Example 7.
- Control Culture supernatant of C0S7 cells transfected with pCAN618 (Opti-MEM medium containing 0.25 mM pABSF and 0.05 CHAPS was used).
- Lane 1 transfection of pCAN618 / huTGC440, culture supernatant when using Opti-MEM medium.
- Lane 2 culture supernatant obtained by transfecting pCAN618 / huTGC440 and using an OpU-MEM medium containing 0.25 mM pABSF.
- Lane 3 Transfection of pCAN618 / huTGC440, culture supernatant when using Opti-MEM medium containing 0.05% CHAPS.
- Lane 4 transfection of pCAN618 / huTGC440, culture supernatant when using Opti-MEM medium containing 0.25 mM pABSF and 0.053 ⁇ 4 CHAPS.
- FIG. 6 shows the results of the Western blot performed in Example 8.
- C0S7 Culture supernatant of C0S7 cells transfected with PDRL440H (using an Opti-MEM medium containing 0.25 mM pABSF and 0.05% CHAPS).
- CHO (dhfr) culture supernatant of CHO (dhfr) cells without any transfection (using ⁇ medium containing 0.25 mpABSF and 0.05% CHAPS).
- Lane 1 Transfection of PDRL440H and culture supernatant using ⁇ medium.
- Lane 2 culture supernatant when PDRL440H was transfected and aMEM medium containing 0.25 InMpABSF was used.
- Lane 3 PDRL440H transfected, culture supernatant when using MEM medium containing 0.05% CHAPS.
- Lane 4 PDRL440H transfected, culture supernatant when ⁇ medium containing 0.25 mM pABSF and 0.05 HAPS was used.
- FIG. 7 shows the results of the Western plot performed in Example 8.
- C0S7 Culture supernatant of C0S7 cells transfected with PDRL440R (using an Opti-MEM medium containing 0.25 mM pABSF and 0.05% CHAPS).
- CHO (dh fr) Culture supernatant of CHO (dhfr) cells without any transfection (using ⁇ medium containing 0.25 mM pABSF and 0.05% CHAPS).
- Lane 1 Transfection of PDRL440R and culture supernatant using ⁇ MEM medium.
- Lane 2 PDRL440R transfected, culture supernatant using aMEM medium containing 0.25 mM pABSF.
- Lane 3 Culture supernatant when PDRL440R was transfected and MEM medium containing 0.05% CHAPS was used.
- Lane 4 culture supernatant when PDRL440R was transfected and a MEM medium containing 0.25 mM pABSF and 0.05% CHAPS was used.
- a protein having the same or substantially the same amino acid sequence as the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2, or SEQ ID NO: 3 of the present invention is human Cells of warm-blooded animals (eg, guinea pigs, rats, mice, chicks, egrets, bushes, hidges, squirrels, monkeys, etc.) , Bone marrow cells, mesangial cells, Langerhans cells, epidermal cells, epithelial cells, endothelial cells, fibroblasts, fiber cells, muscle cells, fat cells, immune cells (eg, macrophages, T cells, B cells, natural killer cells) , Mast cells, neutrophils, basophils, eosinophils, monocytes), megakaryocytes, synovial cells, chondrocytes, bone cells, osteoblasts, osteoclasts, breast cells Or MashitsuHoso Vesicles
- amino acid sequence substantially identical to the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 is represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3, respectively.
- the protein of the present invention since the protein of the present invention usually has a signal peptide, the protein can be efficiently secreted extracellularly.
- Examples of the protein having an amino acid sequence substantially the same as the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2, or SEQ ID NO: 3 of the present invention include, for example, the aforementioned SEQ ID NO: 1, SEQ ID NO: Has an amino acid sequence substantially the same as the amino acid sequence represented by SEQ ID NO: 2 or SEQ ID NO: 3, and is substantially the same as a protein having the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 Proteins having the following properties are preferred.
- Substantially the same properties include, for example, being secreted and acting as a humoral factor. Substantially the same means that those properties are qualitatively the same. Therefore, properties such as secretory action and solubility are equivalent (eg, about 0.1 to 10
- Examples of the protein of the present invention include: (1) SEQ ID NO: 1, SEQ ID NO: 2 Or one or more (preferably about 1 to 30, preferably about 1 to 10, and more preferably a number (1 to 5)) of amino acids in the amino acid sequence represented by SEQ ID NO: 3 2 or more amino acid sequences represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 (preferably about 1 to 30 amino acids, preferably 1 to 10 amino acids) An amino acid sequence to which about 1 amino acid is added, and more preferably a number (1 to 5) of amino acids; 3 1 or 2 or more amino acids in the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 ( Preferably, about 1 to 30 amino acids, preferably about 1 to 10 amino acids, and more preferably about 1 to 5 amino acids are inserted.
- SEQ ID NO: 1 SEQ ID NO: 2
- amino acid sequence represented by SEQ ID NO: 3 An amino acid sequence in which one or more (preferably about 1 to 30, preferably about 1 to 10, and more preferably about 1 to 5) amino acids have been substituted with another amino acid; Or ⁇ ⁇ ⁇ ⁇ so-called mucins such as proteins containing an amino acid sequence obtained by combining them are also included.
- the position of the insertion, deletion or substitution is not particularly limited, but may be any of SEQ ID NO: 1, SEQ ID NO: 2 and SEQ ID NO: 3. Examples include positions other than the amino acid sequence common to the amino acid sequences represented by the respective SEQ ID NOs.
- the left end is the N-terminus (amino terminus) and the right end is the C-terminus (carboxyl terminus) according to the convention of peptide labeling.
- the protein of the present invention including the protein containing the amino acid sequence represented by SEQ ID NO: 1, usually has a carboxyl group (—COOH) or carboxylate (—COO) at the C-terminus, but has an amide at the C-terminus. (—CONH 2 ) or ester (one C ⁇ R).
- R in the ester e.g., methyl, Echiru, n- propyl, alkyl groups such as isopropyl or n _ butyl, Shikuropen chill, C 3 _ 8 cycloalkyl group such as cyclohexyl, for example, phenyl, 2 Ariru groups such as ⁇ - naphthyl, for example, benzyl, in addition to C 7 _ Ararukiru group such as phenylene Lou C doctor 2 alkyl or ⁇ - naphthylmethyl Fei one Nafuchiru C _ 2 alkyl groups, such as such as phenethyl, oral Widely used as ester for A bivaloyloxymethyl group or the like is used.
- the protein of the present invention When the protein of the present invention has a carboxyl group (or carboxylate) other than the C-terminal, the protein of the present invention includes a carboxyl group amidated or esterified.
- the ester in this case, for example, the above-mentioned C-terminal ester and the like are used.
- the amino group at the N-terminal amino acid residue (eg, methionine residue) is protected with a protecting group (eg, an acyl group such as formyl group or acetyl group, etc.).
- a protecting group eg, an acyl group such as formyl group or acetyl group, etc.
- Substituent on the side chain of amino acid in the molecule eg, --OH, --SH, amino group, benzimidazol-group, i Ndoru group, Guanijino group, etc.
- a suitable protecting group e.g., protected by a formyl group, a C i _ 6 Ashiru group such as C i-6 Arukanoiru group such Asechi Le group
- complex proteins such as so-called glycoproteins to which sugar chains are bound.
- protein of the present invention examples include, for example, a human-derived protein having an amino acid sequence represented by SEQ ID NO: 1, a rat-derived protein having an amino acid sequence represented by SEQ ID NO: 2, SEQ ID NO: 3 A mouse-derived protein having the amino acid sequence represented by is used.
- the partial peptide of the protein of the present invention described above is preferably used, as long as it has the same properties as the protein of the present invention described above. May be.
- Peptides having an amino acid sequence are used.
- peptides for example, the same or substantially the same amino acid as the 23rd to 119th amino acid sequence of the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 3 Peptides having a sequence and having substantially the same properties as the protein of the present invention are preferred.
- the partial peptide of the present invention lacks one or more (preferably about 1 to 10 and more preferably number (1 to 5)) amino acids in its amino acid sequence, Alternatively, one or more (preferably, about 1 to 20, more preferably, about 1 to 10, and more preferably, about 1 to 5) amino acids are added to the amino acid sequence. Or 1 or 2 or more (preferably, about 1 to 20; more preferably, about 1 to 10; more preferably, about 1 to 5) amino acids are inserted into the amino acid sequence; Alternatively, one or more (preferably about 1 to 10, more preferably several, more preferably about 1 to 5) amino acids in the amino acid sequence are replaced with other amino acids. May be.
- the C-terminus of the present invention is normally force Rupokishiru group (one CO OH) or other carboxylate - is a (CO_ ⁇ -), C-terminal amide (- C_ ⁇ _NH 2) or an ester (an COOR).
- the partial peptide of the present invention includes those in which the amino group of the N-terminal amino acid residue (eg, methionine residue) is protected with a protecting group, and the glutamine residue generated by cleavage of the N-terminal side in vivo.
- the amino acid in the molecule is protected by a suitable protecting group, or a complex peptide such as so-called sugar peptide to which a sugar chain is bound. .
- the partial peptide of the present invention can be used as an antigen for producing an antibody, it is not necessary to have the activity of the protein of the present invention.
- salts with physiologically acceptable acids eg, inorganic acids, organic acids
- bases eg, alkali metal salts
- acid addition salts that are chemically acceptable.
- Such salts include, for example, salts with inorganic acids (eg, hydrochloric acid, phosphoric acid, hydrobromic acid, sulfuric acid) or organic acids (eg, acetic acid, formic acid, propionic acid, fumaric acid, maleic acid, maleic acid) Acids, succinic acid, tartaric acid, citric acid, malic acid, oxalic acid, benzoic acid, methanesulfonic acid, benzenesulfonic acid) and the like are used.
- inorganic acids eg, hydrochloric acid, phosphoric acid, hydrobromic acid, sulfuric acid
- organic acids eg, acetic acid, formic acid, propionic acid, fumaric acid, maleic acid, maleic acid
- the protein, partial peptide or salt thereof of the present invention can be produced from the above-mentioned human or warm-blooded animal cell or tissue by a known method for purifying a protein, or contains a DNA encoding the protein described below. Transformants It can also be produced by culturing. It can also be produced according to the peptide synthesis method described below.
- the human or mammalian tissues or cells are homogenized and then extracted with an acid or the like, and the resulting extract is subjected to reverse phase chromatography, ion exchange chromatography, etc. Purification and isolation can be performed by combining the above chromatography.
- a commercially available resin for protein synthesis can be usually used.
- resins include chloromethyl resin, hydroxymethyl resin, benzohydrylamine resin, aminomethyl resin, 4-benzyloxybenzyl alcohol resin, 4-methylbenzhydrylamine resin, PAM resin, Hydroxymethyl methylphenylacetamidomethyl resin, polyacrylamide resin, 4- (2 ', 4'-dimethoxyphenyl-1-hydroxymethyl) phenoxy resin, 4- (2', 4'-dimethoxyphenyl-Fmocaminoethyl) Phenoxy resins and the like can be mentioned.
- amino acids having a suitably protected amino group and side chain functional group are condensed on the resin in accordance with the sequence of the target protein according to various known condensation methods.
- the protein is cleaved from the resin, and at the same time, various protecting groups are removed.
- an intramolecular disulfide bond formation reaction is carried out in a highly diluted solution to obtain a target protein or an amide thereof.
- carbodiimides are particularly preferable.
- DCC dicyclobutadiene
- ⁇ , ⁇ ′-diisopropylcarpoimide, ⁇ -ethyl- ⁇ ′-(3-dimethylaminoprolyl) carboimide, and the like are used.
- Activation by these involves adding the protected amino acid directly to the resin along with a racemization inhibitor (eg, HOB HOOBt), or pre-activating the protected amino acid as a symmetric anhydride, HOB t ester or H00B ester. After performing, it can be added to the resin.
- a racemization inhibitor eg, HOB HOOBt
- the solvent used for activating the protected amino acid or condensing with the resin can be appropriately selected from solvents known to be usable for the protein condensation reaction.
- Acid amides such as N, N-dimethylformamide, N, N-dimethylacetamide, N-methylvinylidone; halogenated hydrocarbons such as methylene chloride and chloroform; alcohols such as trifluoroethanol; Sulfoxides such as dimethylsulfoxide, ethers such as pyridine, dioxane and tetrahydrofuran, nitriles such as acetonitrile and propionitrile, esters such as methyl acetate and ethyl acetate, or an appropriate mixture thereof are used.
- the reaction temperature is appropriately selected from a range known to be usable for a protein bond formation reaction, and is usually appropriately selected from a range of about 120 ° C. to 5 Ot.
- the activated amino acid derivative is usually used in a 1.5 to 4-fold excess.
- Examples of the protecting group for the amino group of the starting material include, for example, Z, Boc, t-pentyloxycarbonyl, isopolnyloxycarbonyl, 4-methoxybenzyloxycarbonyl, CutZ, Br-Z, a Damantyloxycarbonyl, trifluoroacetyl, phthaloyl, formyl, 2-nitrophenylsulfenyl, diphenylphosphinothioyl, Fmoc and the like are used.
- the lipoxyl group can be, for example, alkyl esterified (eg, methyl, ethyl, propyl, butyl, t-butyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, 2-adamantyl, etc.).
- alkyl esterified eg, methyl, ethyl, propyl, butyl, t-butyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, 2-adamantyl, etc.
- Alkyl esterification Alkyl esterification
- aralkyl esterification eg, benzyl ester, 4-nitrobenzyl ester, 4-methoxybenzyl ester, 4-cyclobenzyl ester, benzhydryl esterification
- phenacyl esterification benzyloxycarbonyl It can be protected by hydrazide, t-butoxycarbonyl hydrazide, trityl hydrazide and the like.
- the hydroxyl group of serine can be protected, for example, by esterification or etherification.
- Suitable groups for this esterification include, for example, lower groups such as an acetyl group.
- a group derived from carbonic acid such as an arylo group such as a class (C ⁇ e) alkanoyl group and a benzoyl group, a benzyloxy carbonyl group and an ethoxycarbonyl group are used.
- Examples of a group suitable for etherification include a benzyl group, a tetrahydrobiranyl group, and a ⁇ -butyl group.
- the protecting group of the phenolic hydroxyl group of tyrosine for example, Bz l, C l 2 - Bz l, 2 twelve Torobenjiru, Br @ - Z, t - butyl and the like.
- imidazole protecting group for histidine for example, Tos, 4-methoxy-2,3,6-trimethylbenzenesulfonyl, DNP, benzyloxymethyl, Bum, BoTrt, Fnioc and the like are used.
- activated carboxyl groups of the raw materials include, for example, corresponding acid anhydrides, azides, active esters [alcohols (for example, phenol, 2,4,5-trichlorophenol, 2,4- Esters with dinitrophenol, cyanomethyl alcohol, lanitrophenol, H0NB, N-hydroxysuccinimide, N-hydroxyphthalimide, HOBt).
- active esters for example, phenol, 2,4,5-trichlorophenol, 2,4- Esters with dinitrophenol, cyanomethyl alcohol, lanitrophenol, H0NB, N-hydroxysuccinimide, N-hydroxyphthalimide, HOBt.
- a corresponding phosphoric amide is used as the activated amino group of the raw material.
- Methods for removing (eliminating) protecting groups include, for example, catalytic reduction in a hydrogen stream in the presence of a catalyst such as Pd-black or Pd-carbon, or hydrogen fluoride anhydride, methanesulfonic acid, or the like.
- Acid treatment with trifluoromethanesulfonic acid, trifluoroacetic acid or a mixture thereof, base treatment with diisopropylethylamine, triethylamine, piperidine, piperazine, etc., and reduction with sodium in liquid ammonia are also used.
- Can be The elimination reaction by the above-mentioned acid treatment is generally carried out at a temperature of about 120 ° C. to 40 ° C.
- anisol for example, anisol, phenol, thioanisole, methcresol
- a cation scavenger such as paracresol, dimethyl sulfide, 1,4-butanedithiol, 1,2-ethanedithiol, etc.
- the 2,4-dinitrophenyl group used as an imidazole protecting group of histidine is removed by thiophenol treatment, and the formyl group used as an indole protecting group of tributofan is 1,2-ethanedithiol and 1,4-butane described above.
- an amide form of a protein for example, first, after amidating and protecting the ⁇ -carboxyl group of the amino acid at the terminal end of the amino acid, a peptide (protein) chain is added to the amino group side with a desired chain length. After that, a protein was prepared by removing only the protecting group of the amino group at the ⁇ -terminus of the peptide chain, and a protein was obtained by removing only the protecting group of the carboxyl group at the C-terminus. Condensate in a mixed solvent. Details of the condensation reaction are the same as described above. After purifying the protected protein obtained by the condensation, all the protecting groups are removed by the above-mentioned method to obtain a desired crude protein. The crude protein is purified using various known purification means, and the main fraction is freeze-dried to obtain an amide of the desired protein.
- a protein ester for example, after condensing a carboxyl group of a carboxy-terminal amino acid with a desired alcohol to form an amino acid ester, a protein ester is obtained in the same manner as a protein amide. You can get
- the partial peptide of the present invention or a salt thereof can be produced according to a known peptide synthesis method, or by cleaving the protein of the present invention with an appropriate peptide.
- a method for synthesizing a peptide for example, any of a solid phase synthesis method and a liquid phase synthesis method may be used. That is, it is possible to produce the desired peptide by condensing a partial peptide or amino acid that can constitute the partial peptide of the present invention with the remaining portion, and if the product has a protecting group, removing the protecting group. it can.
- Known condensation methods and elimination of protecting groups include, for example, the methods described in the following 1 to 5.
- the partial peptide of the present invention can be purified and isolated by a combination of ordinary purification methods, for example, solvent extraction, distillation, column chromatography, liquid chromatography, recrystallization, and the like.
- the partial peptide obtained by the above method is a free form, it can be converted to an appropriate salt by a known method or a method analogous thereto. It can be converted into a free form or another salt by an analogous method.
- any DNA may be used as long as it contains the above-described nucleotide sequence encoding the protein of the present invention.
- it may be any of genomic DNA, cDNA derived from the cells and tissues described above, and synthetic DNA.
- the vector used for the library may be any of bacteriophage, plasmid, cosmid, phagemid and the like.
- amplification can be carried out directly by Reverse Transcriptase Polymerase Chain Reaction (hereinafter abbreviated as RT-PCR method) using a preparation of total RNA or mRNA fraction from the above-mentioned cells and tissues.
- RT-PCR method Reverse Transcriptase Polymerase Chain Reaction
- Examples of the DNA encoding the protein of the present invention include: (1) a DNA containing the base sequence represented by SEQ ID NO: 4 or a base that hybridizes with the base sequence represented by SEQ ID NO: 4 under high stringency conditions DNA encoding a protein having a sequence and having substantially the same properties as the protein of the present invention (eg, secretory action, etc.), 2 DNA containing the base sequence represented by SEQ ID NO: 5, or SEQ ID NO: : A DNA having a nucleotide sequence that hybridizes under high stringent conditions to the nucleotide sequence represented by 5 and encoding a protein having substantially the same properties as the protein of the present invention; 3 represented by SEQ ID NO: 6 That hybridizes under high stringent conditions to DNA containing the base sequence shown in SEQ ID NO: 6, or to the base sequence represented by SEQ ID NO: 6. It has a group arrangement, substantially the proteins of the present invention Any DNA may be used as long as it has a DNA encoding a protein having the same properties as that of the
- Examples of DNAs that can hybridize under stringent conditions with the base sequence represented by any one of SEQ ID NOs: 4 to 6 include, for example, any of SEQ ID NOs: 4 to 6 DNA containing a nucleotide sequence having a homology of about 60% or more, preferably about 70% or more, and more preferably about 80% or more with the base sequence represented by the above SEQ ID NO: is used.
- Hybridization is performed according to a method known per se or a method analogous thereto, for example, the method described in Molecular Cloning 2nd (J. Sambrook et al., Cold Spring Harbor Lab. Press, 1989). be able to.
- a commercially available library it can be performed according to the method described in the attached instruction manual. More preferably, it can be performed according to high stringent conditions.
- High stringent conditions refer to, for example, a condition in which the sodium concentration is about 19 to 40 mM, preferably about 19 to 20 mM, and the temperature is about 50 to 70 ° C, preferably about 60 to 65 ° C. .
- the DNA encoding the protein having the amino acid sequence represented by SEQ ID NO: 1 includes, for example, DNA having the base sequence represented by SEQ ID NO: 4, and the amino acid sequence represented by SEQ ID NO: 2.
- Examples of the DNA encoding the protein having SEQ ID NO: 5 include DNA having the base sequence represented by SEQ ID NO: 5, and the DNA encoding the protein having the amino acid sequence represented by SEQ ID NO: 3 is SEQ ID NO: 6.
- DNA having the represented base sequence is used.
- the DNA encoding the partial peptide of the present invention may be any DNA containing the above-described nucleotide sequence encoding the partial peptide of the present invention. Further, any of genomic DNA, cDNA derived from the above-described cells and tissues, and synthetic DNA may be used.
- Examples of the DNA encoding the partial peptide of the present invention include: (1) DNA having a partial nucleotide sequence of DNA having the nucleotide sequence represented by SEQ ID NO: 4, No .: a DNA having the nucleotide sequence represented by 10 or a nucleotide sequence that hybridizes with the nucleotide sequence represented by SEQ ID NO: 10 under high stringency conditions, and has substantially the same properties as the protein of the present invention.
- a DNA having a partial base sequence of the encoding DNA is used. DNAs that can hybridize with the base sequence represented by any one of SEQ ID NOs: 10 to 12 have the same significance as described
- the hybridization method and the stringent conditions are the same as described above.
- the DNA encoding the partial peptide having the amino acid sequence represented by SEQ ID NO: 7 includes, for example, DNA having the base sequence represented by SEQ ID NO: 10, and the amino acid sequence represented by SEQ ID NO: 8.
- the DNA encoding the protein having the amino acid sequence represented by SEQ ID NO: 9 is, for example, a DNA encoding the protein having the nucleotide sequence represented by SEQ ID NO: 11, and the DNA encoding the protein having the amino acid sequence represented by SEQ ID NO: 9 is SEQ ID NO: 12 DNA having a base sequence represented by
- a synthetic DNA primer having a partial nucleotide sequence of the protein of the present invention was amplified by the PCR method or incorporated into an appropriate vector.
- the DNA can be selected by hybridization with a DNA fragment encoding a part or the entire region of the protein of the present invention or a DNA fragment labeled with a synthetic DNA.
- the hybridization can be performed according to, for example, the method described in Molecular 'Cloning (Molecular Cloning) 2nd (J. Sambrook et al., Cold Spring Harbor Lab. Press, 1989).
- Molecular Cloning Molecular Cloning
- Conversion of the DNA base sequence can be performed using PCR or a known kit, for example, Mutant TM -G (Takara Shuzo Co., Ltd.), Mutant TM -K (Takara Shuzo Co., Ltd.), etc.
- the method can be carried out according to a method known per se such as a method or a method analogous thereto.
- the DNA encoding the cloned protein can be used as it is depending on the purpose, or can be used after digesting with a restriction enzyme or adding a linker, if desired.
- the DNA may have ATG as a translation initiation codon at the 5 'end and TAA, TGA or TAG as a translation termination codon at the 3' end. These translation initiation codon and translation termination codon can also be added using an appropriate synthetic DNA adapter.
- the expression vector for the protein of the present invention includes, for example, (a) cutting out a target DNA fragment from DNA encoding the protein of the present invention, and (mouth) placing the DNA fragment downstream of a promoter in an appropriate expression vector. It can be manufactured by linking.
- Escherichia coli-derived plasmids eg, PBR322, pBR325, pUC12, pUC13
- Bacillus subtilis-derived plasmids eg, pUB110, pTP5, pC194
- Yeast-derived plasmids eg, pSH19, pSH15
- bacteriophages such as ⁇ phage
- animal viruses such as retrovirus, vaccinia virus, baculovirus, etc.
- the promoter used in the present invention may be any promoter as long as it is appropriate for the host used for gene expression.
- house animal cells When mainly used, SRa promoter overnight, SV40 promoter, HIV 'LTR promoter overnight, CMV promoter, HSV-TK promoter and the like can be mentioned.
- (Cytomegalovirus) Promoter SRa Promoter and the like.
- the host is Escherichia, trp promoter, lac promoter, rec A promoter, ⁇ PL promoter-, lpp promoter, T7 promoter, etc., and if the host is Bacillus, SPOL
- yeast such as a promoter, an SPO2 promoter, a penP promoter, etc., a PH05 promoter, a PGK promoter, a GAP promoter, an ADH promoter and the like are preferable.
- a polyhedrin promoter, a P10 promoter and the like are preferable.
- the expression vector may contain, in addition to the above, an enhancer, a splicing signal, a poly-A addition signal, a selection marker, an SV40 replication origin (hereinafter sometimes abbreviated as SV40 ori), and the like, if desired.
- the selection Ma one car, for example, dihydrofolate reductase (hereinafter sometimes abbreviated as dh fr) gene [methotrexate (MTX) resistance], ampicillin phosphorus resistant gene (hereinafter sometimes abbreviated as Amp r) And neomycin resistance gene (hereinafter sometimes abbreviated as "Ne 0"; G418 resistance).
- dh fr dihydrofolate reductase
- MTX metalhotrexate
- Amp r ampicillin phosphorus resistant gene
- Ne 0 neomycin resistance gene
- a signal sequence suitable for the host is added to the N-terminal side of the protein of the present invention. If the host is Escherichia, the PhoA signal sequence and ⁇ signal sequence are used. If the host is Bacillus, the ⁇ -amylase signal sequence and subtilisin signal sequence are used. In some cases, MF signal sequence, SUC2 signal sequence, etc., and when the host is an animal cell, insulin signal sequence, ⁇ -interferon signal sequence, antibody molecule, signal sequence, etc. can be used.
- a transformant can be produced using the vector.
- Escherichia bacteria for example, Escherichia bacteria, Bacillus bacteria, yeast, insect cells, insects, animal cells, and the like are used.
- Escherichia examples include, for example, Escherichia coli Escherichia coli K 12 ⁇ DH 1 [Procedures of the National Academy of Sciences] Proc. Natl. Acad. Sci. US A), 60, 160 (1968)], JM 103 [Nucleic Acids Research, (Nucleic Acids Research), 9, 309 (198 1)], J A221 [Journal of Molecular Biology], 120, 51 7 (1978)], ⁇ 10 1 [Journal of Molecular Biology 41, 459 (1969)] and C600 [Genetics, 39, 440 (1954)].
- Bacillus spp. include, for example, Bacillus subtilis MI 114 [Gene, 24, 255 (1983)], 207-21 [Journal of Biochemistry, 95] , 87 (198 4)].
- yeast examples include Saccharomyces cerevisiae AH22, AH22R-, NA87-11A, DKD-5D, 20B-12, Schizosaccharomyces pombe NC YC 1913, NC YC 2036 And Pichia pastoris KM71.
- Insect cells include, for example, when the virus is Ac NPV, a cell line derived from the larvae of night moth (Spodoptera frugiperda cell; S f cell), MG1 cell derived from the midgut of Trichoplusia ni, and egg derived from Trichoplusia ni egg High Five TM cells, cells derived from Mamestra brassicae or cells derived from Estigmena acrea are used.
- the virus is BmNPV
- a cell line derived from silkworm Boombyxmori N cell; BmN cell
- Sf cells examples include Sf9 cells (ATCC CRL1711), Sf21 cells (Vaughn, JL et al., In Vivo, 13, 213-217, (1977)) and the like. Is used. As insects, for example, silkworm larvae and the like are used [Maeda et al., Nature, 315, 592 (1985)].
- animal cells examples include monkey cells COS-7 (COS 7), Vero, Chinese hamster cells CHO (hereinafter abbreviated as CH ⁇ cells), dh fr gene deficient Chinese Hams Yuichi cell CHO (hereinafter CHO (dhfr —) Cells), mouse L cells, mouse AtT—20, mouse myeloma cells, rat GH3, human FL cells, etc. are used.
- Transformation of Escherichia bacteria can be performed, for example, by the procedure described in Proc. Natl. Acad. Sci. USA, 69. Vol., 2110 (1972) and Gene, Vol. 17, 107 (1982).
- Transformation of Bacillus sp. Can be performed, for example, according to the method described in Molecular & General Genetics, Vol. 168, 11 (1799).
- Insect cells or insects can be transformed, for example, according to the method described in Bio / Technology, 6, 47-55 (1988).
- Transformation of animal cells can be performed, for example, by the methods described in Cell Engineering Separate Volume 8 New Cell Engineering Experimental Protocol. 263-267 (1995) (published by Shujunsha), Virology, 52, 456 (1973). It can be performed according to the method.
- a liquid medium is suitable as a medium used for the cultivation. It contains carbon sources, nitrogen sources, minerals, etc. necessary for growing. Examples of carbon sources include glucose, dextrin, soluble starch, and sucrose. Examples of nitrogen sources include ammonium salts, nitrates, corn chips, peptone, zein, meat extract, soybean meal, and potatoes. Examples of inorganic or organic substances and inorganic substances such as an extract include calcium chloride, sodium dihydrogen phosphate, magnesium chloride, and the like. Also, yeast, vitamins, growth promoting factors, etc. may be added. The pH of the medium is preferably about 5-8.
- Examples of a medium for culturing Escherichia bacteria include, for example, M9 medium containing glucose and casamino acid [Miller, Journal of Exps. Genetics), 431-433, Cold Spring Harbor Laboratory, New York 1972].
- a drug such as 33-indolylacrylic acid can be added to make the promoter work efficiently if necessary.
- the cultivation is usually performed at about 15 to 43 for about 3 to 24 hours, and if necessary, aeration and stirring can be applied.
- cultivation is usually performed at about 30 to 40 ° C for about 6 to 24 hours.
- the host is yeast
- Burkholder's minimum medium Bostian, KL et al., Processings of the National Academy of Cultures] Proctl. Acad. Sci. USA, 77, 4505 (1980)] and SD medium containing 0.5% casamino acid [Bitter, GA et al., Procagings ⁇ The National Academy ⁇ ⁇ Sciences ⁇ Ob The Us (Proc. Natl. Acad. Sci. USA), 81, 5330 (1984)).
- the pH of the medium is adjusted to about 5-8.
- the cultivation is usually performed at about 20 ° C to 35 ° C for about 24 to 72 hours, and aeration and stirring are added as necessary.
- the culture medium When culturing an insect cell or a transformant whose host is an insect, the culture medium was immobilized in Grace's Insect Medium (Grace, TC, Nature, 195, 788 (1962)). Those to which additives such as serum are appropriately added are used. Culture Preferably, the pH of the ground is adjusted to about 6.2 to 6.4. Culture is usually performed at about 27 ° C for about 3 to 5 days, and aeration and agitation are added as necessary.
- the medium When culturing a transformant in which the host is an animal cell, the medium may be, for example, a MEM medium containing about 5 to 20% fetal bovine serum [Science, 122, 501 (1952) ], DMEM medium [Virology, 8, 396 (1959)], RPMI 1640 medium [Journal of the American Medical Association] 99, 519 (1967)], 199 medium [Proceeding of the Society for the Biological Medicine, 73, 1 (1950)] Are used.
- the pH is about 6-8. Cultivation is usually carried out at about 30 ° C to 40 ° C for about 15 to 60 hours, and aeration and agitation are added as necessary.
- the protein of the present invention can be produced on the cell membrane of the transformant.
- the protein of the present invention can be separated and purified from the culture by, for example, the following method.
- the cells or cells are collected by a known method, suspended in an appropriate buffer, and subjected to sonication, lysozyme and / or freeze-thawing. After the cells or cells are destroyed by the method, a method of obtaining a crude extract of the protein by centrifugation or filtration is appropriately used.
- a protein modifier such as urea or hydrochloric guanidine in the buffers may contain a surfactant such as Triton X- 1 00 TM.
- Purification of the protein contained in the culture supernatant or extract obtained in this manner can be performed by appropriately combining known separation and purification methods.
- These known separation and purification methods include methods using solubility such as salting out and solvent precipitation, dialysis, ultrafiltration, gel filtration, and SDS-polyacrylamide gel electrophoresis.
- Method mainly utilizing the difference in molecular weight of ion exchange chromatography Methods that use differences in charge, such as luffy, methods that use specific affinity, such as affinity chromatography, methods that use differences in hydrophobicity, such as reversed-phase high-performance liquid chromatography, and isoelectric focusing
- a method that uses the difference between isoelectric points, such as a method, is used.
- the protein thus obtained when the protein thus obtained is obtained as a free form, it can be converted to a salt by a method known per se or a method analogous thereto, and conversely, when the protein is obtained as a salt, a method known per se or It can be converted to a free form or other salts by a method analogous thereto.
- the protein produced by the recombinant can be arbitrarily modified or the polypeptide can be partially removed by the action of an appropriate protein modifying enzyme before or after purification.
- an appropriate protein modifying enzyme for example, trypsin, chymotrypsin, arginyl endopeptidase, protein kinase, glycosidase and the like are used.
- the presence of the thus produced protein of the present invention or a salt thereof can be measured by, for example, enzyme blotting using a specific antibody.
- the antibody against the protein, partial peptide or salt thereof of the present invention may be any of a polyclonal antibody and a monoclonal antibody as long as it can recognize the protein, partial peptide or salt thereof of the present invention.
- Antibodies against the protein, partial peptide or a salt thereof of the present invention are obtained by using the protein of the present invention as an antigen, and It can be produced according to a known antibody or antiserum production method.
- the protein of the present invention is administered to a warm-blooded animal itself or together with a carrier or diluent at a site capable of producing an antibody upon administration.
- Complete Freund's adjuvant / incomplete Freund's adjuvant may be administered in order to enhance antibody production upon administration.
- the administration is usually performed once every 2 to 6 weeks, for a total of about 2 to 10 times.
- mice and rats including monkeys, egrets, dogs, guinea pigs, mice, rats, sheep, goats, and chickens are preferably used.
- a warm-blooded animal immunized with the antigen for example, an individual with an antibody titer is selected from a mouse, and the spleen or lymph node is collected 2 to 5 days after the final immunization.
- an individual with an antibody titer is selected from a mouse, and the spleen or lymph node is collected 2 to 5 days after the final immunization.
- a monoclonal antibody-producing hybridoma can be prepared.
- the antibody titer in the antiserum can be measured, for example, by reacting a labeled protein described below with the antiserum, and then measuring the activity of the labeling agent bound to the antibody.
- the fusion operation can be performed according to a known method, for example, the method of Koehler and Mils Yuin (Nature, 256, 495 (1975)).
- the fusion promoter include polyethylene glycol (PEG) and Sendai virus, but PEG is preferably used.
- PEG polyethylene glycol
- myeloma cells include myeloma cells of warm-blooded animals such as NS-1, P3U1, SP2 / 0, and AP-1, but P3U1 is preferably used.
- the preferred ratio between the number of antibody-producing cells (spleen cells) used and the number of myeloma cells used is about 1: 1 to 20: 1, and PEG (preferably PEG1000 to PEG6000) is used at a concentration of about 10 to 80%.
- Cell fusion can be carried out efficiently by adding the mixture and incubating at 20 to 40, preferably 30 to 37 ° C for 1 to 10 minutes.
- Various methods can be used to screen for monoclonal antibody-producing hybridomas. For example, a culture medium is added directly to a solid phase (eg, a microplate) on which a protein antigen is adsorbed or together with a carrier, and then the supernatant is added.
- Monoclonal antibody bound to solid phase with anti-immunoglobulin antibody labeled with a radioactive substance or enzyme (anti-mouse immunoglobulin antibody is used when cells used for cell fusion are mouse) or protein A
- a monoclonal antibody bound to a solid phase is prepared by adding a hybridoma culture supernatant to a solid phase to which an anti-immunoglobulin antibody or protein A is adsorbed, adding a protein labeled with a radioactive substance, an enzyme, or the like. Examples include a method for detecting a null antibody.
- Selection of monoclonal antibodies is performed according to a method known per se or a method analogous thereto.
- it can be performed in a medium for animal cells supplemented with HAT (hypoxanthine, aminopterin, thymidine).
- HAT hyperxanthine, aminopterin, thymidine
- any medium can be used as long as the hybridoma can grow.
- RPMI 1640 medium containing 1 to 20%, preferably 10 to 20% fetal bovine serum, and GIT medium containing 1 to 10% fetal bovine serum (Wako Pure Chemical Industries, Ltd. )
- GIT containing 1 to 10% fetal bovine serum
- a serum-free medium for hybridoma culture SFM-101, Nissui Pharmaceutical Co., Ltd.
- the culture temperature is usually 20 to 40 ° C, preferably about 37 ° C.
- the culture time is generally 5 days to 3 weeks, preferably 1 week to 2 weeks.
- the culture can be usually performed under 5% carbon dioxide.
- the antibody titer of the hybridoma culture supernatant can be measured in the same manner as the measurement of the antibody titer in the antiserum described above.
- Monoclonal antibodies can be separated and purified by methods known per se, for example, immunoglobulin separation and purification methods (eg, salting out method, alcohol precipitation method, isoelectric point precipitation method, electrophoresis method, ion exchanger (eg, DEAE)) Absorption and desorption method, ultracentrifugation method, gel filtration method, antigen binding Solid phase or specific purification method of collecting antibody only with an active adsorbent such as protein A or protein G and dissociating the bond to obtain the antibody) Can do it.
- immunoglobulin separation and purification methods eg, salting out method, alcohol precipitation method, isoelectric point precipitation method, electrophoresis method, ion exchanger (eg, DEAE)
- Absorption and desorption method eg, ultracentrifugation method, gel filtration method, antigen binding Solid phase or specific purification method of collecting antibody only with an active adsorbent such as protein A or protein G and dissociating the bond to obtain the antibody) Can do
- the polyclonal antibody of the present invention can be produced by a method known per se or a method analogous thereto. For example, an immunizing antigen (protein antigen) itself or a complex thereof with a carrier protein is formed, and immunization is performed on a warm-blooded animal in the same manner as in the above-described method for producing a monoclonal antibody.
- the antibody can be produced by collecting the antibody-containing substance against the antibody and separating and purifying the antibody.
- the type of carrier-protein and the mixing ratio of carrier-hapten are different from those of hapten immunized by cross-linking with carrier.
- Any antibody may be cross-linked at any ratio as long as it can be efficiently produced.
- serum albumin, thyroglobulin, hemocyanin, etc. in a weight ratio of about 0.1 to 1 hapten per hapten.
- a method of coupling at a rate of about 20, preferably about 1 to 5 is used.
- various condensing agents can be used for force coupling between the hapten and the carrier.
- an active ester reagent containing a daltaraldehyde, a carbodiimide, a maleimide active ester, a thiol group or a dithioviridyl group is used.
- the condensation product is administered to a warm-blooded animal itself or together with a carrier or diluent at a site where antibody production is possible.
- Complete Freund's adjuvant or incomplete Freund's adjuvant may be administered in order to enhance the antibody-producing ability upon administration.
- the dose is usually given about every 2 to 6 weeks, about 3 to 10 times in total.
- the polyclonal antibody can be collected from the blood, ascites, etc., preferably from the blood of a warm-blooded animal immunized by the above method.
- the measurement of the polyclonal antibody titer in the antiserum can be performed in the same manner as the measurement of the antibody titer in the antiserum described above. Separation and purification of the polyclonal antibody can be performed according to the same method for separation and purification of immunoglobulin as in the above-described separation and purification of the monoclonal antibody.
- a nucleotide sequence complementary to or substantially complementary to DNA encoding the protein or partial peptide of the present invention (hereinafter, these DNAs are abbreviated to the DNA of the present invention in the description of antisense DNA).
- Any antisense DNA having a base sequence complementary to or substantially complementary to the DNA of the present invention and having an action capable of suppressing the expression of the DNA may be used. It may be DNA.
- the nucleotide sequence substantially complementary to the DNA of the present invention is, for example, about 70% of the entire nucleotide sequence or a partial nucleotide sequence of the nucleotide sequence complementary to the DNA of the present invention (that is, the complementary strand of the DNA of the present invention). % Or more, preferably about 80% or more, more preferably about 90% or more, and most preferably about 95% or more.
- the base sequence of the portion encoding the N-terminal portion of the protein of the present invention for example, a base sequence near the start codon, etc.
- a complementary strand of about 70% or more for example, an antisense DNA having a homology of preferably about 80% or more, more preferably about 90% or more, and most preferably about 95% or more is suitable.
- These antisense DNAs can be produced using a known DNA synthesizer or the like. Can be.
- the protein of the present invention usually has a signal peptide, it is efficiently secreted extracellularly and has an important biological activity as a humoral factor for signal transduction, self-defense, and the like.
- the protein of the present invention may be abbreviated as the protein of the present invention, etc.
- the DNA encoding the protein or the partial peptide of the present invention hereinafter, the DNA of the present invention
- Antibodies against the protein, partial peptide or salt thereof of the present invention hereinafter sometimes abbreviated as the antibody of the present invention
- uses of antisense DNA hereinafter, the DNA encoding the protein or the partial peptide of the present invention, etc.
- the protein of the present invention is expressed in a tissue-specific manner, it can be used as a tissue marker. That is, it is useful as a marker for detecting tissue differentiation, disease state, metastasis of cancer, and the like. It can also be used for sorting corresponding receptors, ligands, binding proteins, etc. Further, it can be used as a panel for high-throughput screening known per se to examine biological activity. It can also be used for genetic disease research by performing chromosome mapping.
- the protein of the present invention exists as a humoral factor in a living body, the protein of the present invention or the DNA of the present invention has an abnormality or is defective, or the expression level is abnormally reduced or If so, various illnesses may develop, such as, for example, immune disorders, Teng dysfunction, tunnel dysfunction, infections or gastrointestinal disorders. Therefore, the protein and the like of the present invention and the DNA of the present invention are used as medicines for treating and preventing various diseases such as, for example, immune diseases, lung dysfunction, kidney dysfunction, infectious diseases and gastrointestinal disorders. be able to.
- the protein and the like of the present invention and the DNA of the present invention include, for example, trachea and bronchial-related diseases (eg, bronchitis, influenza infection, bronchial asthma, upper respiratory tract inflammation, bronchiectasis, etc.) Lung-related diseases (lung cancer, tuberculosis, pneumonia, emphysema, pulmonary infarction, pulmonary congestion, respiratory failure, cystic pulmonary fibrosis, pulmonary sarcoidosis, pulmonary edema, pulmonary hypertension, pneumoconiosis, etc.), stomach-related diseases (eg, Helicobacter H.
- bronchial-related diseases eg, bronchitis, influenza infection, bronchial asthma, upper respiratory tract inflammation, bronchiectasis, etc.
- Lung-related diseases lung cancer, tuberculosis, pneumonia, emphysema, pulmonary infarction, pulmonary congestion, respiratory failure, cystic pulmonary
- pylori infection peptic ulcer, gastric cancer, gastric atony, gastritis, Mallory-Wise syndrome, gastric dilatation, gastric secretion abnormality,
- Tory's disease giant hypertrophic gastritis
- gastric tetany gastric tetany
- torso disease gastric vertigo
- gastrointestinal neuropathy etc.
- Diabetes indigestion, maintenance of intestinal microflora, etc. Can be used.
- the protein of the present invention or the like which is deficient. Therefore, in some patients, the information transmission in cells is not sufficiently or normally performed.
- oral inserting the DNA of the present invention into cells and expressing the protein or the like of the present invention, the cells are then administered to the patient.
- the role of the protein or the like of the present invention in the patient can be sufficiently or normally exerted by transplantation or (8) by administering the protein or the like of the present invention to the patient.
- the DNA of the present invention When the DNA of the present invention is used as the above-mentioned therapeutic or prophylactic agent, the DNA may be used alone or after being inserted into an appropriate vector such as a retrovirus vector, an adenovirus vector, an adenovirus-associated virus vector, and the like. It can be administered to humans or warm-blooded animals according to conventional means.
- the DNA of the present invention may be administered as such or with a physiologically acceptable carrier such as an auxiliary agent for promoting uptake, and administered via a catheter such as a gene gun ⁇ hydrogel catheter. it can.
- the protein or the like of the present invention is used as the above-mentioned therapeutic or prophylactic agent, it is purified to at least 90%, preferably 95% or more, more preferably 98% or more, and still more preferably 99% or more. It is preferred to use
- the protein or the like of the present invention can be used, for example, as a sugar-coated tablet, capsule, elixir, microcapsule, or the like, orally or water or other pharmaceutically acceptable liquid. It can be used parenterally in the form of injections such as sterile solutions or suspensions.
- binders such as gelatin, corn starch, tragacanth, gum arabic, excipients such as crystalline cellulose, corn starch, gelatin, alginic acid, etc.
- Swelling agents such as magnesium stearate, sweeteners such as sucrose, lactose or saccharin, and flavoring agents such as peppermint, cocoa oil or cherry.
- a liquid carrier such as oil and fat can be further contained in the above-mentioned type of material.
- Sterile compositions for injection can be formulated according to standard pharmaceutical practice, such as dissolving or suspending the active substance in vehicles such as water for injection, and naturally occurring vegetable oils such as sesame oil and coconut oil. it can.
- aqueous liquids for injection include physiological saline, isotonic solutions containing glucose and other adjuvants (eg, D-sorbitol, D-mannitol, sodium chloride, etc.). such as an alcohol (e.g., such as Etano Lumpur), polyalcohol (e.g., propylene glycol, polyethylene grayed recall), nonionic surfactants (e.g., polysorbate 8 0 TM, etc. HC ⁇ -5 0) etc. You may use together.
- the oily liquid include sesame oil and soybean oil, and may be used in combination with a solubilizing agent such as benzyl benzoate or benzyl alcohol.
- a buffer eg, phosphate buffer, sodium acetate buffer, etc.
- a soothing agent eg, benzalkonidum chloride, proforce hydrochloride, etc.
- a stabilizer eg, human serum albumin, polyethylene glycol, etc.
- preservatives eg, benzyl alcohol, phenol, etc.
- the vector into which the DNA of the present invention has been inserted is also formulated in the same manner as described above, and is usually used parenterally.
- the preparations obtained in this way are safe and have low toxicity, for example, in humans or warm-blooded animals (eg, rats, mice, guinea pigs, egrets, birds, higgies, bush, horses, cats, cats). , Dogs, monkeys, chimpanzees, etc.).
- warm-blooded animals eg, rats, mice, guinea pigs, egrets, birds, higgies, bush, horses, cats, cats). , Dogs, monkeys, chimpanzees, etc.
- the dosage of the protein or the like of the present invention depends on the target disease, the administration target, the administration route, and the like.
- the protein or the like of the present invention is orally administered for the purpose of treating an immune disease, generally, in an adult (as 6 Ok), about 1 mg of the protein or the like is used per day.
- the single dose of the protein or the like varies depending on the administration subject, target disease, and the like.
- the protein or the like of the present invention is administered in the form of an injection to an adult ( (With a body weight of 60 kg), the protein, etc., is about 110 mg / day, preferably about 1200 mg / day, more preferably about 110 mg / day. Is conveniently administered by injecting it into the affected area. In the case of other animals, the dose can be administered in terms of 60 kg.
- the protein or the like of the present invention exists as a humoral factor in a living body (especially lung, trachea, stomach, kidney, etc.), a compound or a salt thereof which promotes the function of the protein or the like of the present invention may be used, for example, in immunization. It can be used as a medicine for treating or preventing diseases, pulmonary dysfunction, Teng dysfunction, infectious disease or gastrointestinal dysfunction).
- the compound or its salt that inhibits the function of the protein or the like of the present invention can be used as a medicament such as an agent for treating or preventing a disease caused by excessive production of the protein or the like of the present invention.
- the protein or the like of the present invention is useful as a reagent for screening a compound or a salt thereof that promotes or inhibits the function of the protein or the like of the present invention.
- the present invention provides a compound of the present invention characterized by using the protein of the present invention, a partial peptide thereof, or a salt thereof, or a compound or a salt thereof which promotes the function of the protein, the partial peptide, or a salt thereof (hereinafter, referred to as “the compound”).
- the compound A method for screening a compound that inhibits the function of the protein of the present invention, a partial peptide thereof, or a salt thereof (hereinafter may be abbreviated as an inhibitor).
- the screening kit of the present invention contains the protein, partial peptide or a salt thereof of the present invention.
- Compounds or salts thereof obtained using the screening method or screening kit of the present invention include, for example, peptides, proteins, non-peptidic compounds, synthetic compounds, fermentation products, cell extracts, plant extracts, animal tissue extracts It is a compound selected from liquids, plasma, and the like, and is a compound that promotes or inhibits the function of the protein and the like of the present invention.
- salt of the compound those similar to the aforementioned salts of the protein of the present invention are used.
- a compound obtained by using the screening method or the screening kit of the present invention is used as the above-mentioned therapeutic / prophylactic agent, it can be carried out according to a conventional method.
- tablets, capsules, elixirs, microcapsules, sterile solutions, suspensions, and the like can be prepared in the same manner as the above-mentioned pharmaceuticals containing the protein of the present invention.
- the preparations obtained in this way are safe and low toxic and can be used, for example, in humans or in warm-blooded animals (eg mice, rats, puppies, higgs, pigs, puppies, puppies, birds, cats, dogs, monkeys). , Chimpanzees, etc.).
- the dose of the compound or a salt thereof varies depending on its action, target disease, target of administration, route of administration, and the like.
- a compound that promotes the function of the protein or the like of the present invention for the purpose of treating inflammatory diseases When the compound is orally administered, generally in adults (assuming a body weight of 60 kg), the compound is used in an amount of about 0.1 to 10 Omg, preferably about 1.0 to 5 Omg, more preferably about 1.0 to 10 Omg per day.
- Administer 2 Omg When administered parenterally, the single dose of the compound varies depending on the administration subject, target disease, etc., for example, a compound that promotes the function of the protein or the like of the present invention for the purpose of treating an inflammatory disease.
- the compound is administered in an amount of about 0.01 to 30 mg per day, preferably about 0.1 to 20 mg, more preferably about 0.1 to 20 mg per day. It is convenient to administer about 1 to 1 Omg by intravenous injection. In the case of other animals, the dose can be administered in terms of 60 kg.
- a compound that inhibits the function of the protein or the like of the present invention is orally administered, generally, in an adult (assuming a body weight of 6 O kg), the compound is used in an amount of about 0.1 to 10 Omg per day, preferably About 1.0-50mg, more preferably about 1.0-20m g.
- the single dose of the compound varies depending on the subject of administration, the disease to be treated, and the like, but the compound that inhibits the function of the protein or the like of the present invention is usually administered in the form of an injection to an adult (60%). iv), about 0.01 to 3 Omg, preferably about 0.1 to 2 Omg, and more preferably about 0.1 to 1 Omg of the compound per day Conveniently for administration. In the case of other animals, the dose can be administered in terms of 60 kg.
- An antibody against the protein or the like of the present invention (hereinafter sometimes abbreviated as the antibody of the present invention) can specifically recognize the protein or the like of the present invention. Can be used for quantification, particularly quantification by sandwich immunoassay.
- the antibody of the present invention is allowed to competitively react with a test solution and a labeled protein of the present invention, and the ratio of the labeled protein of the present invention bound to the antibody is measured.
- a method for quantifying the protein or the like of the present invention in a test solution
- the monoclonal protein of the present invention can be quantified using a monoclonal antibody against the protein or the like of the present invention (hereinafter sometimes referred to as the monoclonal antibody of the present invention), and detection by tissue staining or the like can be performed. You can do it.
- the antibody molecule itself may be used, or the F (ab ') 2 , Fab', or Fab fraction of the antibody molecule may be used.
- the method for quantifying the protein or the like of the present invention using the antibody of the present invention is not particularly limited, and may be an antibody, an antigen, or an antibody-antigen complex corresponding to the amount of antigen (eg, the amount of protein) in the test solution. Any method may be used as long as it is a method for detecting the amount of the compound by chemical or physical means and calculating the amount from a standard curve prepared using a standard solution containing a known amount of the antigen. For example, nephrometry, competitive methods, The mnometric method and the sandwich method are suitably used, but it is particularly preferable to use the sandwich method described later in terms of sensitivity and specificity.
- a labeling agent used in a measuring method using a labeling substance for example, a radioisotope, an enzyme, a fluorescent substance, a luminescent substance and the like are used. Radioisotopes, if example embodiment, [1 2 5 I], [1 3 1 I], [3 H], and [1 4 C] used.
- the above-mentioned enzyme a stable enzyme having a large specific activity is preferable. For example, / 3-galactosidase, / 3-dalcosidase, alkaline phosphatase, peroxidase, and malate dehydrogenase are used.
- the fluorescent substance for example, fluorescamine, fluorescein isothiocyanate, or the like is used.
- the luminescent substance for example, luminol, luminol derivative, luciferin, lucigenin and the like are used. Further, a biotin-avidin system can be used for binding the antibody or antigen to the labeling agent.
- the carrier include insoluble polysaccharides such as agarose, dextran, and cellulose; synthetic resins such as polystyrene, polyacrylamide, and silicon; and glass.
- a test wave is reacted with the insolubilized monoclonal antibody of the present invention (primary reaction), and further reacted with another labeled monoclonal antibody of the present invention (secondary reaction).
- primary reaction the insolubilized monoclonal antibody of the present invention
- secondary reaction another labeled monoclonal antibody of the present invention
- the primary reaction and the secondary reaction may be performed in the reverse order, may be performed simultaneously, or may be performed at staggered times.
- the labeling agent and the method of insolubilization can be in accordance with those described above.
- the antibody used for the solid phase antibody or the labeling antibody does not necessarily need to be one kind, and a mixture of two or more kinds of antibodies is used for the purpose of improving measurement sensitivity and the like. May be used.
- the monoclonal antibody of the present invention used in the primary reaction and the secondary reaction is an antibody having different binding sites for the protein and the like of the present invention. It is preferably used. That is, the first order
- the antibody used in the primary and secondary reactions is, for example, when the antibody used in the secondary reaction recognizes the C-terminal of the protein or the like of the present invention, the antibody used in the primary reaction is preferably the C-terminal Other than the above, for example, an antibody that recognizes the N-terminal is used.
- the monoclonal antibody of the present invention can be used in a measurement system other than the sandwich method, for example, a competition method, an immunometric method, or a nephrometry.
- a competition method after the antigen in the test solution and the labeled antigen are allowed to react competitively with the antibody, the unreacted labeled antigen (F) and the labeled antigen (B) bound to the antibody are separated. (BZF separation) The amount of labeling of either B or F is measured, and the amount of antigen in the test wave is quantified.
- a soluble antibody is used as an antibody
- B / F separation is performed using a polyethylene glycol
- a liquid phase method using a second antibody against the antibody or a solid phase antibody is used as the first antibody.
- an immobilization method using a soluble first antibody and an immobilized antibody as the second antibody is used.
- the antigen in the test solution and the immobilized antigen are subjected to a competitive reaction with a certain amount of labeled antibody, and then the solid phase and the liquid phase are separated. After reacting the antigen with an excess amount of the labeled antibody, the immobilized antigen is added to bind the unreacted labeled antibody to the solid phase, and then the solid phase and the liquid phase are separated. Next, the amount of label in either phase is measured to determine the amount of antigen in the test solution.
- the amount of insoluble sediment resulting from the antigen-antibody reaction in a gel or in a solution is measured. Even when the amount of antigen in the test solution is small and only a small amount of sediment is obtained, laser nephrometry utilizing laser scattering is preferably used.
- the measurement system for the protein of the present invention may be constructed by adding ordinary technical considerations of those skilled in the art to ordinary conditions and operation methods in each method. For details of these general technical means, reference can be made to reviews and written documents.
- the protein and the like of the present invention can be quantified with high sensitivity by using the antibody of the present invention.
- the concentration of the protein or the like of the present invention is reduced by quantifying the concentration of the protein or the like of the present invention using the antibody of the present invention, for example, an immune disease, a pulmonary dysfunction, or a kidney function is detected. It can be diagnosed as a disease, such as a disorder, an infectious disease or a gastrointestinal disorder, or is likely to be affected in the future.
- the antibody of the present invention can be used for detecting the protein of the present invention or the like present in a subject such as a body fluid or a tissue.
- preparation of an antibody column used for purifying the protein of the present invention, detection of the protein of the present invention in each fraction at the time of purification, analysis of the behavior of the protein of the present invention in test cells It can be used for such purposes.
- the DNA of the present invention can be used, for example, in humans or warm-blooded animals (eg, rats, mice, guinea pigs, egrets, birds, higgies, bushes, horses, cats, cats, dogs) by using them as probes. , Monkeys, chimpanzees, etc.) can detect abnormalities (genetic abnormalities) in the DNA or mRNA encoding the protein of the present invention or its partial peptide, for example, damage to the DNA or mRNA, sudden mutation or It is useful as a diagnostic agent for genes such as decreased expression, increased DNA or mRNA or excessive expression.
- abnormalities genetic abnormalities
- a decrease in expression is detected by Northern hybridization or when a mutation in DN ⁇ is detected by PCR-SSCP method, for example, immune disease, lung dysfunction, kidney dysfunction, infectious disease Alternatively, it can be diagnosed that there is a high possibility of a disease such as a gastrointestinal disorder.
- Antisense DNA that can complementarily bind to the DNA of the present invention and suppress the expression of the DNA can suppress the function of the protein or the like of the present invention or the DNA of the present invention in vivo.
- it can be used as an agent for treating or preventing a disease caused by overexpression of the protein of the present invention.
- the above-mentioned antisense DNA is used as the above-mentioned therapeutic or prophylactic agent, it can be carried out in the same manner as the above-mentioned therapeutic and / or preventive agent for various diseases containing DNA of the present invention.
- the antisense DNA when used, the antisense DNA is inserted alone or into an appropriate vector such as a retrovirus vector, an adenovirus vector, an adenovirus associated virus vector, and the like. Therefore, it can be implemented.
- the antisense DNA can be administered as it is or in the form of a formulation together with a physiologically acceptable carrier such as an adjuvant for promoting uptake, and can be administered by using a gene gun or a catheter such as Hyde-mouth gel catheter.
- the antisense DNA can also be used as a diagnostic oligonucleotide probe for examining the presence of the DNA of the present invention in tissues or cells and the state of expression thereof.
- the antibody of the present invention having an activity of neutralizing the activity of the protein or the like of the present invention can be used, for example, in combination with a drug such as a therapeutic or prophylactic agent for a disease caused by overexpression of the protein of the present invention. Can be used.
- the prophylactic agent for treating the above-mentioned diseases containing the antibody of the present invention can be used directly as a liquid or as a pharmaceutical composition in an appropriate dosage form, in humans or mammals (eg, rats, porch egrets, higgies, bushus, Can be administered orally or parenterally to mice, cats, dogs, monkeys, etc.).
- mammals eg, rats, porch egrets, higgies, bushus, Can be administered orally or parenterally to mice, cats, dogs, monkeys, etc.
- the dose varies depending on the administration subject, target disease, symptoms, administration route, and the like.
- the dose of the antibody of the present invention in a single dose is usually about 0.01 to 2 Omg Z kg body weight, preferably 1 to 1 O mg Z kg body weight, more preferably 0.1 to 5 mg Z kg body weight is administered by intravenous injection about 1 to 5 times a day, preferably about 1 to 3 times a day. It is convenient. In the case of other parenteral administration and oral administration, an equivalent dose can be administered. If the symptoms are particularly severe, the dose may be increased accordingly.
- the antibodies of the present invention can be administered by themselves or as a suitable pharmaceutical composition.
- the pharmaceutical composition used for the above administration contains the above or a salt thereof and a pharmacologically acceptable carrier, diluent or excipient.
- Such compositions are provided in dosage forms suitable for oral or parenteral administration.
- compositions for oral administration include solid or liquid dosage forms, specifically tablets (including sugar-coated tablets and film-coated tablets), pills, granules, powders, capsules (soft capsules) ), Syrups, emulsions, suspensions and the like.
- Such a composition is produced by a method known per se and contains a carrier, diluent or excipient commonly used in the field of pharmaceuticals.
- a carrier for example, lactose, starch, sucrose, magnesium stearate and the like are used as carriers and excipients for tablets.
- compositions for parenteral administration for example, injections, suppositories, etc. are used.
- Injections are in the form of intravenous injections, subcutaneous injections, intradermal injections, intramuscular injections, drip injections, etc. Is included.
- Such injections are prepared according to a method known per se, for example, by dissolving, suspending or emulsifying the above antibody or a salt thereof in a sterile aqueous or oily liquid usually used for injections.
- aqueous liquid for injection for example, physiological saline, isotonic solution containing glucose and other auxiliary agents and the like are used, and suitable solubilizing agents, for example, alcohol (eg, ethanol), polyalcohol (eg, , Propyle Glycol, polyethylene glycol) and nonionic surfactants [eg, polysorbate 80, HCO-50 ipolyoxyethylene (5 Omol) adduct of hydrogenated castor oil).
- alcohol eg, ethanol
- polyalcohol eg, Propyle Glycol, polyethylene glycol
- nonionic surfactants eg, polysorbate 80, HCO-50 ipolyoxyethylene (5 Omol) adduct of hydrogenated castor oil.
- oily liquid for example, sesame oil, soybean oil, and the like are used, and benzyl benzoate, benzyl alcohol, and the like may be used in combination as a solubilizing agent.
- the prepared injection is usually filled in an appropriate ampoul
- each dosage unit dosage form is 5 to 500 mg, especially for injections.
- the antibody contains 5 to 100 mg, and other dosage forms contain 10 to 25 Omg of the above antibody.
- compositions may contain another active ingredient as long as the composition does not cause an undesirable interaction with the above-mentioned antibody.
- the present invention may be abbreviated as a DNA encoding the exogenous protein of the present invention (hereinafter abbreviated as the exogenous DNA of the present invention) or a mutant DNA thereof (the exogenous mutant DNA of the present invention).
- Non-human mammals having the exogenous DNA of the present invention or the mutant DNA thereof include unfertilized eggs, fertilized eggs, germ cells including spermatozoa and their progenitor cells.
- the stage of embryo development in non-human mammal development (more preferably, the stage of single cell or fertilized egg cell and Before the 8-cell stage, the desired DNA can be transferred by the calcium phosphate method, electric pulse method, lipofection method, agglutination method, microinjection method, particle gun method, DEAE-dextran method, etc. it can.
- exogenous DNA of the present invention intended for somatic cells, organs of living organisms, tissue cells, and the like can be transferred by the DNA transfer method and used for cell culture, tissue culture, and the like.
- the DNA transgenic animal of the present invention can also be produced by fusing the cells with the above-mentioned germ cells by a cell fusion method known per se.
- mice for example, Japanese lions, bushes, higgies, goats, egrets, dogs, cats, guinea pigs, eighteen mussels, mice, rats and the like are used.
- a rat eg, Wistar, SD, etc.
- Examples of the “mammal” in the recombinant vector that can be expressed in mammals include humans in addition to the above-mentioned non-human mammals.
- the exogenous DNA of the present invention refers not to the DNA of the present invention originally possessed by a non-human mammal but to the DNA of the present invention once isolated and extracted from the mammal.
- mutant DNA of the present invention those having a mutation (for example, mutation) in the base sequence of the original DNA of the present invention, specifically, addition or deletion of a base, substitution with another base, etc.
- the DNA in which the occurrence has occurred is used, and also includes the abnormal DNA.
- the abnormal DNA means a DNA that expresses an abnormal protein of the present invention, for example, a DNA that expresses a protein that suppresses the function of the normal protein of the present invention.
- the exogenous DNA of the present invention may be derived from a mammal that is the same or different from the animal of interest.
- various mammals having the DNA of the present invention having high homology to the human DNA can be used.
- DNA constructs in which the human DNA of the present invention is bound downstream of various promoters capable of expressing DNA derived from a product (eg, egret, dog, cat, guinea pig, hamster, rat, mouse, etc.) )
- a product eg, egret, dog, cat, guinea pig, hamster, rat, mouse, etc.
- a target mammal for example, a mouse fertilized egg
- Examples of the expression vector of the protein of the present invention include a plasmid derived from Escherichia coli, a plasmid derived from Bacillus subtilis, a plasmid derived from yeast, a bacteriophage such as ⁇ phage, a retrovirus such as Moroni leukemia virus, a vaccinia virus or a baculovirus. Animal viruses and the like are used. Among them, a plasmid derived from Escherichia coli, a plasmid derived from Bacillus subtilis or a plasmid derived from yeast are preferably used.
- promoters that regulate DNA expression include, for example, DNs derived from viruses (eg, Simian virus, cytomegalovirus, Moroni leukemia virus, JC virus, breast cancer virus, poliovirus, etc.). Promoters 2 Promoters derived from various mammals (human, egret, dog, cat, guinea pig, hamster, rat, mouse, etc.), for example, albumin, insulin II, human brakin II, elastase, erythropoietin, endothelin, muscle creatine kinase , Glial fibrillary acidic protein, glutathione S-transferase, platelet-derived growth factor
- the vector preferably has a sequence (generally called terminator) that terminates transcription of the messenger RNA of interest in a mammal having DN ⁇ metastasis, and is, for example, derived from viruses and various mammals.
- the sequence of each DNA can be used, and preferably, Simian virus SV40 or the like is used.
- the splicing signal of each DNA, the enhancer region, a part of the intron of the eukaryotic DNA, etc. are located 5 'upstream of the promoter region and the promoter region. Linkage between the translation regions or 3 ′ downstream of the translation region is also possible depending on the purpose.
- the translation region can be prepared as a DNA construct that can be expressed in a transgenic animal by a conventional DNA engineering technique in which it is ligated downstream of the above promoter and, if desired, upstream of the transcription termination site.
- Transfer of the exogenous DNA of the present invention at the fertilized egg cell stage is ensured to be present in all germ cells and somatic cells of the target mammal.
- the presence of the exogenous DNA of the present invention in the germ cells of the produced animal after DNA transfer means that all the progeny of the produced animal retain the exogenous DNA of the present invention in all of the germ cells and somatic cells Means that.
- the progeny of this type of animal that has inherited the exogenous DNA of the present invention has the exogenous DNA of the present invention in all of its germinal and somatic cells.
- the non-human mammal to which the exogenous normal DNA of the present invention has been transferred is confirmed to stably maintain the exogenous DNA by mating, and should be subcultured as an animal having the DNA in a normal breeding environment. Can be done.
- Transfer of the exogenous DNA of the present invention at the fertilized egg cell stage is ensured to be present in excess in all germ cells and somatic cells of the target mammal.
- Excessive presence of the exogenous DNA of the present invention in the germ cells of the animal after DNA transfer It means that all progeny of the animal have the exogenous DNA of the present invention in excess of all of their germinal and somatic cells.
- the progeny of such animals that have inherited the exogenous DNA of the present invention have an excess of the exogenous DNA of the present invention in all of their germinal and somatic cells.
- the non-human mammal having the normal DNA of the present invention has a high level of expression of the normal DNA of the present invention, and eventually promotes the function of endogenous normal DNA, thereby finally improving the protein of the present invention. It may develop hyperfunction and can be used as a model animal for the disease. For example, using the normal DNA transgenic animal of the present invention to elucidate the pathological mechanism of the hyperactivity of the protein of the present invention and diseases associated with the protein of the present invention, and to examine a method for treating these diseases. Is possible.
- the non-human mammal having the foreign abnormal DNA of the present invention should be subcultured in a normal breeding environment as an animal carrying the DNA after confirming that the foreign DNA is stably maintained by mating. Can be done.
- the desired exogenous DNA can be incorporated into the above-mentioned plasmid and used as a source.
- a DNA construct with a promoter can be prepared by ordinary DNA engineering techniques. The transfer of the abnormal DNA of the present invention at the fertilized egg cell stage is ensured to be present in all germ cells and somatic cells of the target mammal.
- the presence of the abnormal DNA of the present invention in the germinal cells of the animal produced after the transfer of the DNA means that the offspring of the animal produced have the abnormal DNA of the present invention in all of the germinal cells and somatic cells.
- the progeny of this type of animal that inherits the exogenous DNA of the present invention has the abnormal DNA of the present invention in all of its germ cells and somatic cells.
- a homozygous animal having the introduced DNA on both homologous chromosomes is obtained, and by crossing these male and female animals, all offspring can be bred to have the DNA.
- the non-human mammal having the abnormal DNA of the present invention has high expression of the abnormal DNA of the present invention. Inhibition of the function of endogenous normal DNA may eventually result in a functionally inactive refractory of the protein of the present invention, which can be used as a disease model animal .
- a functionally inactive refractory of the protein of the present invention which can be used as a disease model animal .
- using the abnormal DNA-transferred animal of the present invention it is possible to elucidate the pathological mechanism of the function-inactive refractory of the protein of the present invention and to examine a method for treating this disease.
- the abnormal DNA highly expressing animal of the present invention can be used to inhibit the function of the normal protein by the abnormal protein of the present invention in the function-inactive refractory disease of the protein of the present invention (dominant negative activity). Action).
- the mammal into which the foreign abnormal DNA of the present invention has been transferred has an increased symptom of the released protein of the present invention, it can be used in a therapeutic drug screening test for a functionally inactive refractory disease of the protein of the present invention. Is also available.
- the mutant protein of the present invention can be isolated and purified, and its antibodies can be produced. Furthermore, using the DNA-transferred animal of the present invention, it is possible to examine clinical symptoms of a disease related to the protein of the present invention, including a functionally inactive refractory disease of the protein of the present invention. More detailed pathological findings in each organ of the disease model related to the protein of the present invention can be obtained, which will contribute to the development of new treatment methods and the research and treatment of secondary diseases caused by the disease. it can.
- each organ is removed from the DNA-transferred animal of the present invention, and after shredding, With any proteolytic enzyme, it is possible to obtain free DNA transfer cells, culture them, or systematize the cultured cells.
- the protein of the present invention can be identified, its relationship with apoptosis, differentiation or proliferation, or its signal transduction mechanism can be examined, and its abnormality can be examined. It is an effective research material for elucidation.
- the above-described test method was used. It is possible to provide an effective and rapid screening method of the therapeutic agent for the disease by using a quantitative method and the like.
- the DNA transgenic animal of the present invention or the exogenous DNA expression vector of the present invention it is possible to examine and develop a method for treating a DNA associated with the protein of the present invention.
- the present invention provides a non-human mammalian embryonic stem cell in which the DNA of the present invention has been inactivated, and a non-human mammal deficient in expression of the DNA of the present invention.
- the DNA is inactivated by introducing a repo overnight gene (eg, a / 3-galactosidase gene derived from Escherichia coli), and the reporter gene is controlled under the control of the promoter for DNA of the present invention.
- a repo overnight gene eg, a / 3-galactosidase gene derived from Escherichia coli
- test compound is administered to the animal described in (7) to enhance the promoter activity of the DNA of the present invention, which is characterized by detecting expression of a reporter gene. Or a method of screening for a compound or a salt thereof that inhibits the compound.
- non-human mammalian embryonic stem cells in which the DNA of the present invention has been inactivated are artificially mutated to the DNA of the present invention possessed by the non-human mammal to suppress the DNA expression ability, Alternatively, by substantially losing the activity of the protein of the present invention encoded by the DNA, the DNA has substantially no ability to express the protein of the present invention (hereinafter referred to as the knockout DNA of the present invention).
- Non-human mammalian embryonic stem cells hereinafter abbreviated as ES cells).
- non-human mammal the same one as described above is used.
- the method of artificially mutating the DNA of the present invention can be performed, for example, by deleting a part or all of the DNA sequence and inserting or substituting another DNA by a genetic engineering technique.
- the knockout DNA of the present invention may be prepared by, for example, shifting the codon reading frame or disrupting the function of the promoter or exon by these mutations.
- non-human mammalian embryonic stem cells in which the DNA of the present invention is inactivated include, for example, The DNA of the present invention possessed by a non-human mammal is isolated, and its exon portion is a drug resistance gene represented by a neomycin resistance gene, a hygromycin resistance gene, or IacZ (
- a drug resistance gene represented by a neomycin resistance gene, a hygromycin resistance gene, or IacZ (
- the resulting A DNA strand having a DNA sequence constructed so as to disrupt the gene (hereinafter abbreviated as an evening getter vector) is introduced into the chromosome of the animal by, for example, a homologous recombination method.
- ES cells from which the DNA of the present invention is inactivated by the homologous recombination method or the like for example, those already established as described above may be used, or according to the known method of Evans and Kaufma. May be newly established.
- mouse ES cells currently, 129 ES cells are generally used, but since the immunological background is not clear, an alternative pure immunological and genetically for example an object such as a background to obtain a bright et kana ES cells, C 578 Mr / 6 Mausu Ya Rei_57 8 / hybridization 6 egg collection number of lack of the 08 eight / / 2 Nyori improved 80? 1 Mouse (C57BLZ6 and DBAZ2 can be used satisfactorily.
- the BDFi mouse has the advantage of large number of eggs collected and the robustness of eggs.
- the ES cells obtained using this method can be used to replace the genetic background of C57BLZ6 mice by back-crossing with C57BLZ6 mice when a disease model mouse is created. Can be advantageously used in that it is possible.
- blastocysts 3.5 days after fertilization are generally used.However, it is more efficient to collect embryos at the 8-cell stage and culture them up to blastocysts. Many early embryos can be obtained.
- male ES cells are generally more convenient for producing a germline chimera. It is also desirable to discriminate between males and females as soon as possible in order to reduce the complexity of culturing.
- a method of determining the sex of ES cells for example, a method of amplifying and detecting a gene in the sex-determining region on the Y chromosome by PCR can be mentioned.
- this method conventionally, for example G-banding method, requires about 10 6 cells for karyotype analysis, since suffices ES cell number of about 1 colony (about 50), culture
- the primary selection of ES cells in the initial stage can be performed by gender discrimination, and the selection of male cells at an early stage greatly reduces the labor required in the initial culture.
- Embryonic stem cell lines obtained in this way usually have very good proliferative properties, but they must be carefully subcultured because they tend to lose their ability to generate individuals.
- a suitable feeder cell such as STO fibroblasts
- a carbon dioxide incubator in the presence of LIF (1—1000 OU / ml) (preferably 5% carbon dioxide, 95% air or Incubate at about 37 with 5% oxygen, 5% carbon dioxide, 90% air, etc., and at the time of subculture, for example, trypsin ZEDTA solution (usually 0.001-0.5% trypsin / 0.5%).
- a single cell is prepared by treating with 1-5 mM EDTA (preferably about 0.1% trypsin Z 1 mM EDTA), and the cells are seeded on a freshly prepared feeder cell. Such passage is usually performed every 11 to 13 days. At this time, it is desirable to observe the cells, and if morphologically abnormal cells are found, discard the cultured cells.
- 1-5 mM EDTA preferably about 0.1% trypsin Z 1 mM EDTA
- ES cells can be transformed into various types of cells, such as parietal, visceral, and cardiac muscle, by monolayer culture up to high density or suspension culture until cell clumps are formed under appropriate conditions. It is possible to differentiate [MJ Evans and MH Kaufman, Nature 292, 154, 1981; GR Martin Proceedings of National, 'Academy' of Science ', Proc. Natl. Acad. Sci. USA) 78, 7634, 1981; TC Doetschman et al., Journal of emblemology, and experimental morphology, 87, 27, 1985.
- the DNA-deficient cells of the present invention obtained by differentiating the ES cells of the present invention are useful in the cell biology of the protein of the present invention in the mouth of in vivo.
- the non-human mammal deficient in DNA expression of the present invention can be distinguished from a normal animal by measuring the mRNA amount of the animal using a known method and indirectly comparing the expression levels. .
- non-human mammal those similar to the aforementioned can be used.
- the non-human mammal deficient in DNA expression of the present invention can be obtained, for example, by introducing the evening-getting vector prepared as described above into a mouse embryonic stem cell or mouse egg cell,
- the DNA sequence in which the DNA of the present invention has been inactivated undergoes homologous recombination by gene homologous recombination to replace the DNA sequence of the present invention on the chromosome of mouse embryonic stem cells or mouse egg cells, thereby obtaining the DNA sequence of the present invention.
- the cells in which the DNA of the present invention has been knocked out are subjected to Southern hybridization analysis using a DNA sequence on or near the DNA of the present invention as a probe or a DNA sequence on a gettering vector, and It can be determined by analysis by PCR using the DNA sequence of the mouse-derived neighboring region other than the DNA of the present invention used as the primer as a primer.
- a non-human mammalian embryonic stem cell is used, the cell line in which the DNA of the present invention has been inactivated by gene homologous recombination is cloned, and the cell is used at an appropriate time, for example, at the 8-cell stage non-human cell line.
- the chimeric embryo is injected into a mammalian embryo or a blastocyst, and the resulting chimeric embryo is transplanted into the uterus of the pseudopregnant non-human mammal.
- the produced animal is a chimeric animal composed of both cells having the normal DNA locus of the present invention and cells having the artificially altered DNA locus of the present invention.
- all tissues are artificially mutated from a population obtained by crossing such a chimeric individual with a normal individual.
- the individuals obtained in this manner are usually individuals deficient in the hetero-expression of the protein of the present invention, and mated with individuals deficient in the hetero-expression of the protein of the present invention.
- a homozygous deficient individual can be obtained.
- a transgenic non-human mammal having a targeting vector introduced into a chromosome can be obtained by injecting a DNA solution into a nucleus of an egg cell by a microinjection method. Compared to a transgenic non-human mammal, it can be obtained by selecting a gene having a mutation in the DNA locus of the present invention by homologous recombination.
- the germline can be obtained and maintained according to a standard method. That is, by mating male and female animals having the inactivated DNA, homozygous animals having the inactivated DNA on both homologous chromosomes can be obtained.
- the obtained homozygous animal can be efficiently obtained by rearing the mother animal in such a manner that one normal individual and a plurality of homozygotes are obtained.
- homozygous and heterozygous animals having the inactivated DNA are bred and subcultured.
- non-human mammalian embryonic stem cells in which the DNA of the present invention has been inactivated are extremely useful for producing a non-human mammal deficient in expressing the DNA of the present invention.
- the non-human mammal deficient in expression of the DNA of the present invention lacks various biological activities that can be induced by the protein of the present invention, a disease caused by inactivation of the biological activity of the protein of the present invention. Since it can be a model, it is useful for investigating the causes of these diseases and examining treatment methods.
- the non-human mammal deficient in expression of the DNA of the present invention is resistant to diseases (eg, immune disease, lung dysfunction, kidney dysfunction, infectious disease or gastrointestinal dysfunction) caused by deficiency or damage of the DNA of the present invention. It can be used for screening for compounds that have therapeutic and prophylactic effects.
- diseases eg, immune disease, lung dysfunction, kidney dysfunction, infectious disease or gastrointestinal dysfunction
- the present invention is characterized in that a test compound is administered to a non-human mammal deficient in expression of the DNA of the present invention, and changes in the animal are observed and measured.
- a method for screening a compound or a salt thereof having a therapeutic or preventive effect on a disease caused by the disease is provided.
- Examples of the non-human mammal deficient in DNA expression of the present invention used in the screening method include the same ones as described above.
- Test compounds include, for example, peptides, proteins, non-peptidic compounds, synthetic compounds, fermentation products, cell extracts, plant extracts, animal tissue extracts, and plasma. These compounds may be novel compounds or known compounds.
- a non-human mammal deficient in expression of the DNA of the present invention is treated with a test compound, compared with a non-treated control animal, and changes in the organs, tissues, disease symptoms, etc. of the animal are used as indicators.
- the test compound can be tested for its therapeutic and prophylactic effects.
- test compound for example, oral administration, intravenous injection and the like are used, and it can be appropriately selected according to the symptoms of the test animal, the properties of the test compound, and the like.
- the dose of the test compound can be appropriately selected according to the administration method, the properties of the test compound, and the like.
- a non-human mammal deficient in DNA expression of the present invention is subjected to glucose tolerance treatment, and tested before or after glucose tolerance treatment.
- the compound is administered, and the blood glucose level and weight change of the animal are measured over time.
- the compound obtained by using the screening method of the present invention is a compound selected from the test compounds described above, and is a disease caused by a deficiency or damage of the protein or the like of the present invention (eg, an immune disease, a pulmonary dysfunction) It has a therapeutic / preventive effect on Teng dysfunction, infectious disease or gastrointestinal disorders, etc., and can be used as a drug such as a safe and low-toxic therapeutic / prophylactic agent for the disease. Further, a compound derived from the compound obtained by the above-mentioned screening can be used in the same manner.
- the compound obtained by the screening method may form a salt. Examples of the salt of the compound include physiologically acceptable acids (eg, inorganic acids, organic acids) and bases (eg, alkali metal).
- a physiologically acceptable acid addition salt is preferred.
- Such salts include, for example, salts with inorganic acids (eg, hydrochloric acid, phosphoric acid, hydrobromic acid, sulfuric acid) or organic acids (eg, acetic acid, formic acid, propionic acid, fumaric acid, maleic acid) Succinic acid, tartaric acid, citric acid, malic acid, succinic acid, benzoic acid, methanesulfonic acid, benzenesulfonic acid).
- inorganic acids eg, hydrochloric acid, phosphoric acid, hydrobromic acid, sulfuric acid
- organic acids eg, acetic acid, formic acid, propionic acid, fumaric acid, maleic acid
- Succinic acid tartaric acid, citric acid, malic acid, succinic acid, benzoic acid, methanesulfonic acid, benzenesulfonic acid.
- a drug containing the compound or a salt thereof obtained by the screening method can be produced in the same manner as the drug containing the protein of the present invention described above.
- the preparations thus obtained are safe and low toxic, so Can be administered to mammals (eg, rats, mice, guinea pigs, egrets, sheep, bush, horses, horses, cats, dogs, monkeys, etc.).
- the dose of the compound or a salt thereof varies depending on the target disease, the target of administration, the administration route, and the like.
- the compound when administered for the purpose of treating an inflammatory disease, it is generally required for an adult (body weight). 60 mg), the compound is administered at about 0.1 to 10 Omg per day, preferably about 1.0 to 5 Omg, more preferably about 1.0 Omg.
- the single dose of the compound when administered parenterally, the single dose of the compound varies depending on the administration subject, target disease, and the like.
- the compound is usually administered in the form of an injection to an adult (6O O).
- the dose can be administered in terms of 60 kg.
- the present invention provides a test compound administered to a non-human mammal deficient in expression of a DNA of the present invention, and detects or inhibits the expression of a reporter gene.
- a method for screening a compound or a salt thereof is provided.
- the non-human mammal deficient in expression of DNA of the present invention may be a non-human mammal deficient in expression of DNA of the present invention in which the DNA of the present invention is inactivated by introducing a reporter gene.
- a reporter gene which can be expressed under the control of the promoter for the DNA of the present invention is used.
- test compound examples include the same compounds as described above.
- the same gene as described above is used, and a 3-galactosidase gene (1 acZ), a soluble alkaline phosphatase gene or a luciferase gene is preferable.
- the repo overnight gene supports the promoter of the DNA of the present invention. Since it is under the control of the promoter, the activity of the promoter can be detected by tracing the expression of the substance encoded by the reporter gene.
- a tissue that originally expresses the protein of the present invention may / 3-galactosidase is expressed instead of the protein of the present invention. Therefore, for example, by staining with a reagent that serves as a substrate for a galactosidase such as 5-bromo-4-chloro-3,- ⁇ -pindolyl-i3-galactopyranoside (X-gal), it is easy to carry out staining.
- a reagent that serves as a substrate for a galactosidase such as 5-bromo-4-chloro-3,- ⁇ -pindolyl-i3-galactopyranoside (X-gal)
- X-gal 5-bromo-4-chloro-3,- ⁇ -pindolyl-i3-galactopyranoside
- the protein-deficient mouse of the present invention or a tissue section thereof is fixed with daltaraldehyde, washed with phosphate buffered saline (PBS), and then stained with X_ga1 at room temperature or at room temperature. After reacting for about 30 minutes to 1 hour at around 7 ° C, the / 3-galactosidase reaction can be stopped by washing the tissue sample with an ImM EDTA / PBS solution, and color development can be observed. . Further, mR NA encoding 1 a c Z may be detected according to a conventional method.
- the compound or a salt thereof obtained by using the above-mentioned screening method is a compound selected from the above-mentioned test compounds, and is a compound that promotes or inhibits the promoter activity against DNA of the present invention.
- the compound obtained by the screening method may form a salt.
- the salt of the compound include physiologically acceptable acids (eg, inorganic acids) and bases (eg, organic acids). Salts are used, especially the physiologically acceptable acid addition salts.
- examples of such salts include salts with inorganic acids (eg, hydrochloric acid, phosphoric acid, hydrobromic acid, sulfuric acid) or organic acids (eg, acetic acid, formic acid, propionic acid, fumaric acid, maleic acid, Salts with succinic acid, tartaric acid, citric acid, malic acid, oxalic acid, benzoic acid, methanesulfonic acid, benzenesulfonic acid) are used.
- inorganic acids eg, hydrochloric acid, phosphoric acid, hydrobromic acid, sulfuric acid
- organic acids eg, acetic acid, formic acid, propionic acid, fumaric acid, maleic acid, Salts with succinic acid, tartaric acid
- the compound of the present invention that promotes the activity of a promoter against DNA or a salt thereof can promote the expression of the protein of the present invention and promote the function of the protein. It is useful as a drug for safe and low toxic therapeutic and prophylactic agents for diseases such as organ dysfunction, infectious diseases and gastrointestinal disorders. Furthermore, compounds derived from the compounds obtained by the above screening can be used in the same manner.
- a drug containing the compound or a salt thereof obtained by the screening method can be produced in the same manner as the above-mentioned drug containing the protein of the present invention or a salt thereof.
- the preparations obtained in this way are safe and low toxic, and can be used, for example, in humans or mammals (eg, rats, mice, guinea pigs, egrets, sheep, sheep, bushus, dogs, dogs, cats, dogs). , Monkeys, etc.).
- the dose of the compound or a salt thereof varies depending on the target disease, the target of administration, the administration route, and the like.
- a compound that promotes the promoter activity of the DNA of the present invention for the purpose of treating an inflammatory disease is orally administered.
- the compound When administered, generally in adults (assuming a body weight of 6 O kg), the compound should be administered in an amount of about 0,0; ⁇ 10 Omg, preferably about 1.0-50 mg, more preferably about 1.0-20 mg.
- the single dose of the compound varies depending on the administration subject, target disease, and the like.For example, it promotes promoter activity on the DNA of the present invention for the purpose of treating inflammatory diseases.
- the compound When the compound is administered to an adult (as 6 O kg), usually in the form of an injection, the compound is administered in an amount of about 0.01 to 30 mg, preferably about 0.1 to 2 Omg, more preferably about 0.1 to 20 mg per day. It is convenient to administer about 0.1 to 1 Omg by intravenous injection. In the case of other animals, the dose can be administered in terms of 60 kg.
- the compound of the present invention that inhibits the promoter activity against DNA when orally administered, generally, in an adult (assuming a body weight of 60 kg), the compound is used in an amount of about 0.1 to 10 per day. Omg, preferably about 1.0 to 5 Omg, more preferably about 1.0 to 20 mg.
- the single dose of the compound varies depending on the administration subject, target disease, etc., but the compound that inhibits the promoter activity of DNA of the present invention is usually administered to an adult (60 kg) in the form of an injection. ),
- the compound is administered by intravenous injection at a rate of about 0.01 to 30 mg, preferably about 0.1 to 2 Omg, more preferably about 0.1 to 1 Omg per day. It is convenient. For other animals, converted to 6 O kg Amount can be administered.
- the non-human mammal deficient in expression of the DNA of the present invention is extremely useful for screening a compound or a salt thereof that promotes or inhibits the activity of the promoter for the DNA of the present invention. It can greatly contribute to the investigation or prevention of various diseases caused by insufficient expression of DNA.
- Trt Trityl
- sequence numbers in the sequence listing in the present specification indicate the following sequences.
- FIG 1 shows the amino acid sequence of the human-derived protein of the present invention.
- 1 shows the amino acid sequence of the rat-derived protein of the present invention.
- FIG. 1 shows an amino acid sequence of a mouse-derived protein of the present invention.
- FIG. 1 shows the nucleotide sequence of DNA encoding the rat-derived protein of the present invention having the amino acid sequence represented by SEQ ID NO: 2.
- Sequence number corresponds to the 23rd to 119th amino acid sequence of the amino acid sequence represented by 1.
- Sequence number corresponds to the 23rd to 119th amino acid sequence of the amino acid sequence represented by 2.
- 1 shows the amino acid sequence of a partial peptide of the mouse-derived protein of the present invention. Sequence number: corresponds to the 23rd to 119th amino acid sequence of the amino acid sequence represented by 3.
- the transformant Escherichia coli XL 1—Blue MRF '/ pDRL44OH obtained in Example 6 described below was used on August 26, 1998 by the Ministry of International Trade and Industry Deposited with the National Institute of Technology (NI BH) under the deposit number FERM BP-6476 and deposited with the Fermentation Research Institute (IFO) under the deposit number IF ⁇ 16192 since July 31, 1998.
- NI BH National Institute of Technology
- IFO Fermentation Research Institute
- the transformant Escherichia coii XL1-Blue MRF '/ pDRL440M obtained in Example 4 described below has been used for the purpose of (NI BH) and a deposit number FERM BP-6477 from the Fermentation Research Institute (IFO) on July 31, 1998 under the deposit number IF ⁇ 16193.
- the transformant Escherichia coli XL 1 -B 1 ue MRF 'ZpDRL440R obtained in Example 6 described below was produced on August 26, 1998 by the Ministry of International Trade and Industry It has been deposited with the Institute of Fermentation (NIBH) under the deposit number FERM BP-6478 as of July 31, 1998 under the deposit number IF ⁇ 16194 at the Institute of Fermentation (IFO).
- the plasmid pBK / CMV (4512 bp) (Stratagene) having a neomycin resistance gene downstream of the SV40 early gene promoter was digested with Bsu36I (New England Biolabs) and the resulting 1.6 kbp was obtained. Fragment The DNA polymerase I Klenow fragment (Takara Shuzo) treatment was performed to obtain a blunt-ended fragment containing the neomycin resistance gene. This fragment was ligated with a plasmid obtained by digesting pME18S (341 1p) with Smal (Takara Shuzo) to obtain pME18S / Ne0 (5040 bp).
- This fragment was ligated with a 4.2 kbp fragment obtained by double digestion of pME18S / Neo with HindII and EcoRI, and the animal cell expression vector pCAN616 (5969 bp) was ligated. Obtained. Furthermore, pCAN616 was digested with XhoI (Takara Shuzo) and self-closure was performed to obtain pCAN617 (5585 bp), an animal cell expression vector from which the stuiier region was removed from the multiple cloning site.
- a clone encoding a signal sequence for secretion and a processing site was selected from EST data supplied by SmithKline Beecham (SB). The method is to translate the DNA sequence of the EST into an amino acid sequence, and to clone in the same frame with a class of hydrophobic amino acids (Leu, Ile, Val, Phe, Ala, etc.) after Met and in the same frame.
- a clone having a processing site (ArgArg, LysArg, LysLys) was selected, and HGS: 105111 was found as a clone satisfying these conditions.
- HGS 105111 was found as a clone satisfying these conditions.
- it is an EST sequence there are usually deletions, insertions, misreadings, etc. in the database sequence, so the sequence was confirmed by the following method.
- the mRNA of this clone was found to be expressed in limited tissues such as human lung, trachea, and stomach, and it was revealed that this clone was an organ-specific expression product.
- the size of the mRNA is short, about 0.8 kb and 0.6 kb.
- the cDNA fragment of TGC-440 contains almost the entire length of the mRNA, and the coding region of the protein may be other than that shown in Figure 1. It turned out that there was not.
- Example 3 Obtaining rat cDNA
- Hybridization was performed in 5xSSPE, 5xDenhardt's solution, 0.5% SDS at 65: overnight, and washing was performed at 0.5xSS 0.USDS at 50 ° C. Since multiple positive plaques were obtained by autoradiography (-80 ° C, 18 hours), single-black isolation was performed, phage DNA was digested with BsiWI, and the resulting inserted cDNA was obtained. Fragments! It was subcloned into the Acc651 site of DUC118. As a result of determining the nucleotide sequence of the cDNA fragment, it was found that rat TGC-440 consisting of 119 amino acids as many as humans was encoded.
- the lung was removed from the C57BL / 6N mouse, and poly (A) + RNA was obtained in the same manner as described in Example 3. This was transformed into type III, and mouse cDNA was obtained using 3'-RACE.
- primer M440-OF GCCTTTAAGAACCAACAGACAG; SEQ ID NO: 13
- 3′-RACE was performed according to a standard method.
- the cDNA fragment (0.7 kb) was cloned into the Sr fl site of the pCR-Scripi A immediately (STRATAGENE) of the closing vector to obtain PDRL440M (E. coli XL1-Blue MRF '/ pDRL440M).
- a peptide (human) consisting of the amino acid sequence from position 110 to position 119 of the present protein represented by SEQ ID NO: 1; and a peptide from position 110 to position 110 of the present protein (rat) represented by SEQ ID NO: 2 Peptides consisting of the amino acid sequence up to the 119th amino acid sequence were each chemically synthesized by a method known per se. After 1 mg of these peptides and 4 mg of cyclosiglobin were combined by the maleimide method, 100 g of the antigenic peptide was subcutaneously subcutaneously applied to 2 herons (SPF, New Zealand White) together with FCA (complete Freund's adjuvant). Injections were made for primary immunization.
- SPF New Zealand White
- a primer designed to amplify the open reading frame of human TGC-440, H440-EF (GACGAATTCCCACCATGAAAGTTCTAATCTCTTCCCTCCT; SEQ ID NO:
- H440-ER GACTCGAGCGGCCGCTACAAAGGCAGAGCAAAGCTTCTTA; SEQ ID NO:
- PCR 15 was synthesized by a method known per se, and PCR was carried out using the plasmid lng described in Example 1 for type I.
- the PCR was performed using TakaraExTaq (Takara Shuzo) at 25 ° C for 30 seconds and 68 ° C for 1 minute in a thermal cycle 7-GeneAmp PCR System 2400 (PERK IN ELMER) 25 times.
- the obtained PCR fragment was digested with EcoRI and NotI, and subcloned into the EcoRI and NotI sites of pCA'618, an expression vector for animal cells, to obtain pCAN618 / huTGC440.
- H440-0F TGCACCGTCGACCACCATGAAAGTTCTAATCTCTTCCCTCCTCCTGT; SEQ ID NO: 16
- H440-OR CGCTCAGTCGACCTACAAAGGCAGAGCAAAGCTTCTTAGCTGACATTGTTT; SEQ ID NO: 17
- the PCR was performed using Pfu DNA Polymerase (STRATAGENE) in a GeneAmp PCR System 2400 (PERK IN ELMER) at 96 ° C for 45 seconds, at 45 ° C for 45 seconds, and at 72 ° C for 1 minute 25 times.
- the obtained PCR fragment was digested with SalI, cloned into the Sail site of animal cell expression vector PA11 (also called pAKKOl.11), and the cDNA was inserted into the PDRL440H promoter in the forward direction.
- E. coli XL1-BlueMRF '/ pDRL440H primers designed to amplify the open reading frame of rat TGC-440, R440-0F, SEQ ID NO: 18) and R440-OR (CAGAGTGTCGACACTATAAGGGCAGGGCGAAGC; SEQ ID NO: 19) were synthesized by a method known per se. Then, PCR was performed using the plasmid lng described in Example 3 for type I.
- PCR conditions were as follows: Pfu DNA Polymerase (STRATAGENE) was used, and the temperature was set at 96 ° C for 45 seconds on a Samarucycla GeneArap PCR System 2400 (PERK IN ELMER). 54 45 seconds, 72 ° C for 1 minute were repeated 25 times.
- the resulting PCR fragment was digested with SalI, cloned into the Sail site of animal cell expression vector PA11 (also called pAKKOl.11), and PDRL440R, in which the cDNA was inserted in the forward direction with respect to the promoter, was used. (Escherichia coli XU-Blue MRF '/ pDRL440R).
- Example 7 Expression of human TGC-440 cDNA in C0S7 cells
- C0S7 cells were usually cultured in DMEM medium (GIBC0-BRL) containing 10% FCS (fetal fetal serum).
- C0S7 cells (1.5 ⁇ 10 s cells / well) were cultured in a 6-well plate for 24 hours, washed twice with OpU-MEM medium (GIBCO-BRL), and used for introduction of the expression plasmid.
- OpU-MEM medium (GIBCO-BRL)
- the FCS was added to 10%, and the cells were cultured for another 19 hours. Then, the medium was changed to 1 Opti-MEM medium (Gibco-BRL), (2) 0.25 mM ABSF (sum).
- Opti-MEM medium (Gibco-BRL) containing (Kako Pure Chemicals)
- Opti-MEM medium (Gibco-BRL) containing 0.05% CHAPS (Dojindo)
- the culture was further performed for 48 hours in place of Opti-MEM medium (Gibco-BRL) containing (Dojindo).
- Culture supernatant and cells were collected separately and used for Western blot analysis. 500 minutes of the culture supernatant was concentrated to 501 using a microcon 3 (Ami con) having a molecular weight of 3,000 cut (10-fold concentration). The cells were washed with physiological saline, added with 200 1 of Lae ⁇ li sample buffer, and heated at 95 ° C for 2 minutes to obtain a cell extract. The concentrated culture supernatant and the cell extract were electrophoresed on an SDS polyacrylamide gel (18%, TEFC0), and transferred to a nitrocell membrane (Hybond ECL, Amersham).
- SDS polyacrylamide gel 18%, TEFC0
- Block Ace ZTBS-T (0.93 ⁇ 4 aCU 20 mM Tris-HCl (pH 7) .5) was reacted with anti-TCC-440 antiserum diluted 2000-fold with 0.053 ⁇ 4 Tween20) for 2 hours at room temperature. After washing 5 times with TBS-T, it was reacted with anti-horskin IgG antibody (Amersham) labeled with horseradish peroxidase (HRP) diluted 4000 times with 10% Block Ace / TBS-T for 1 hour at room temperature. .
- CH0 (dhfr ) (ATCC) cultured cells were carried out in a MEM (Gibco-BRL) using a medium 5% C0 2 vapor below 37 ° C containing 10% FCS (Hyclone).
- the human and rat TGC440 expression plasmids (human: pDRL440H, rat: PDRL440R) prepared in Example 6 were each Transfection was performed using the calcium phosphate method. After 12 hours, the medium was replaced with a MEM medium containing 10 ° FCS, and two days later, the medium was replaced with a selection medium (a MEM without ribonucleotide and deoxyribonucleotide (Gico-BRL) containing 10% dialyzed serum (Hyclone)).
- a MEM medium containing 10 ° FCS
- a selection medium a MEM without ribonucleotide and deoxyribonucleotide (Gico-BRL) containing 10% dialyzed serum (Hyclone)
- the medium was replaced with a selection medium every three days, and cells into which the expression plasmid was integrated were selected.
- colonies that grew on the plate were cloned into 12 clones each of human and rat, and plated on 12-well plates. Next, these clones were spread on a 6-well plate and cultured until confluent.
- the culture supernatant is transferred to an eppendorf sample tube, centrifuged to remove floating cells, concentrated to 1/10 using centricon-3 (Amicon), and the SDS-PAGE sample containing the same amount of DTT
- the buffer was added, SDS-PAGE was performed, and the expression level was estimated by Western blotting.
- Western blotting was performed by diluting the primary antibody with the anti-TCC440 antiserum obtained in Example 5 1/200, and using the secondary antibody with HRP-labeled anti-Egret IgG anti-serum. (1/2000, Amersham), and color development was performed using ECL western blotting kit (Amersham).
- TGC440 protein of the same molecular weight as expressed using COS-7 cells was secreted and expressed in the medium. It was confirmed that # 5, 9, and 10 clones were most expressed in human TGC440 protein-expressing CH0 cells, and # 4 and 9 clones were expressed in rat TGC440 protein-expressing CH0 cells. Further, these clones were spread on a 96-well plate, and single gel clones were obtained by the limiting dilution method.
- the protein of the present invention and DNA encoding the same can be used, for example, as a therapeutic / prophylactic agent for diseases such as immune diseases, lung dysfunction, kidney dysfunction, infectious diseases and gastrointestinal disorders. Further, the protein of the present invention is useful as a reagent for screening a compound that promotes or inhibits the activity of the protein of the present invention or a salt thereof. Furthermore, since an antibody against the protein of the present invention can specifically recognize the protein of the present invention, it can be used for quantification of the protein of the present invention in a test solution.
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU54478/99A AU5447899A (en) | 1998-09-03 | 1999-09-02 | Novel protein and process for producing the same |
| EP99940628A EP1111046A4 (en) | 1998-09-03 | 1999-09-02 | NOVEL PROTEIN AND PROCESS FOR PRODUCING THE SAME |
| CA002341326A CA2341326A1 (en) | 1998-09-03 | 1999-09-02 | Novel protein and process for producing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25010898 | 1998-09-03 | ||
| JP10/250108 | 1998-09-03 |
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| Publication Number | Publication Date |
|---|---|
| WO2000014226A1 true WO2000014226A1 (fr) | 2000-03-16 |
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ID=17202951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/004765 Ceased WO2000014226A1 (fr) | 1998-09-03 | 1999-09-02 | Nouvelle proteine et son procede de production |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1111046A4 (ja) |
| AU (1) | AU5447899A (ja) |
| CA (1) | CA2341326A1 (ja) |
| WO (1) | WO2000014226A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070706A3 (en) * | 2001-02-28 | 2003-04-17 | Genentech Inc | Interleukin-8 homologous polypeptides and therapeutic uses thereof |
| US7291712B2 (en) | 1998-06-25 | 2007-11-06 | Genentech, Inc. | Interleukin-8 homologous polypeptides and therapeutic uses thereof |
| EP1873245A1 (en) * | 2001-02-28 | 2008-01-02 | Genentech, Inc. | Interleukin-8 homologous polypeptides and therapeutic uses thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2433133C2 (ru) * | 2004-03-09 | 2011-11-10 | Майкробиа, Инк. | Полипептид для увеличения активности рецептора гуанилатциклазы, фармацевтическая композиция, способ лечения желудочно-кишечного расстройства у пациента, способ повышения активности рецептора гуанилатциклазы у пациента, способ лечения висцеральной боли, способ получения полипептида (варианты), изолированная молекула нуклеиновой кислоты, бактериальный вектор экспрессии и изолированная бактериальная клетка |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998045712A2 (en) * | 1997-04-08 | 1998-10-15 | Human Genome Sciences, Inc. | 20 human secreted proteins |
| WO1999006550A2 (en) * | 1997-08-01 | 1999-02-11 | Genset | 5' ESTs FOR SECRETED PROTEINS EXPRESSED IN PROSTATE |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001016318A2 (en) * | 1999-09-01 | 2001-03-08 | Genentech, Inc. | Secreted and transmembrane polypeptides and nucleic acids encoding the same |
| US6613887B1 (en) * | 1996-09-11 | 2003-09-02 | Takeda Chemical Industries, Ltd. | Human ependymin-like protein |
| WO1999063088A2 (en) * | 1998-06-02 | 1999-12-09 | Genentech, Inc. | Membrane-bound proteins and nucleic acids encoding the same |
| JP2002519030A (ja) * | 1998-06-26 | 2002-07-02 | インサイト・ファーマスーティカルズ・インコーポレイテッド | ヒトシグナルペプチド含有タンパク質 |
| EP1210418B1 (en) * | 1999-06-02 | 2010-08-18 | Genentech, Inc. | Secreted and transmembrane polypeptides and nucleic acids encoding the same |
-
1999
- 1999-09-02 CA CA002341326A patent/CA2341326A1/en not_active Abandoned
- 1999-09-02 EP EP99940628A patent/EP1111046A4/en not_active Withdrawn
- 1999-09-02 WO PCT/JP1999/004765 patent/WO2000014226A1/ja not_active Ceased
- 1999-09-02 AU AU54478/99A patent/AU5447899A/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998045712A2 (en) * | 1997-04-08 | 1998-10-15 | Human Genome Sciences, Inc. | 20 human secreted proteins |
| WO1999006550A2 (en) * | 1997-08-01 | 1999-02-11 | Genset | 5' ESTs FOR SECRETED PROTEINS EXPRESSED IN PROSTATE |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1111046A4 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291712B2 (en) | 1998-06-25 | 2007-11-06 | Genentech, Inc. | Interleukin-8 homologous polypeptides and therapeutic uses thereof |
| WO2002070706A3 (en) * | 2001-02-28 | 2003-04-17 | Genentech Inc | Interleukin-8 homologous polypeptides and therapeutic uses thereof |
| AU2002236618B2 (en) * | 2001-02-28 | 2007-08-09 | Genentech, Inc. | Interleukin-8 homologous polypeptides and therapeutic uses thereof |
| EP1873245A1 (en) * | 2001-02-28 | 2008-01-02 | Genentech, Inc. | Interleukin-8 homologous polypeptides and therapeutic uses thereof |
| JP2010046065A (ja) * | 2001-02-28 | 2010-03-04 | Genentech Inc | インターロイキン−8と相同なポリペプチドとその治療用途 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5447899A (en) | 2000-03-27 |
| CA2341326A1 (en) | 2000-03-16 |
| EP1111046A4 (en) | 2003-07-02 |
| EP1111046A1 (en) | 2001-06-27 |
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