WO2000008167A1 - Trimere du produit d'expression du gene env de hiv - Google Patents
Trimere du produit d'expression du gene env de hiv Download PDFInfo
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- WO2000008167A1 WO2000008167A1 PCT/FR1999/001871 FR9901871W WO0008167A1 WO 2000008167 A1 WO2000008167 A1 WO 2000008167A1 FR 9901871 W FR9901871 W FR 9901871W WO 0008167 A1 WO0008167 A1 WO 0008167A1
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- glycoprotein
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- hiv
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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
- C07K14/005—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from viruses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2740/00—Reverse transcribing RNA viruses
- C12N2740/00011—Details
- C12N2740/10011—Retroviridae
- C12N2740/16011—Human Immunodeficiency Virus, HIV
- C12N2740/16111—Human Immunodeficiency Virus, HIV concerning HIV env
- C12N2740/16122—New viral proteins or individual genes, new structural or functional aspects of known viral proteins or genes
Definitions
- the present invention relates to a process for obtaining recombinant proteins, originating from the membrane of the HIN virus responsible for the acquired immunodeficiency syndrome (AIDS), allowing the restoration of their native trimeric form, as well as the use of these proteins for vaccination or diagnostic purposes.
- AIDS acquired immunodeficiency syndrome
- the glycoprotein of the HIV envelope is coded by the "env" gene, and the translation of the corresponding AR glycin gives a glycosylated protein, gpl 60, in the form of a precursor whose molecular mass is 160 kDa.
- the gp l 60 is cleaved inside the cell to give, on the level of the cytoplasmic membrane during the budding of the virus in the course of formation, on the one hand the gp l 20 which one finds outside of the cell and the virus, and, on the other hand, gp41, the transmembrane part of the glycoprotein, which corresponds to the carboxy-terminal end of the precursor.
- gp41 the only transmembrane protein, will present its carboxy-terminal end turned towards the inside of the virus and its amino-terminal end protruding outside, maintaining its non-covalent association with the gp l 20. By its amino-terminal end, it is attached in a non-covalent manner to gp41 while the rest of the protein is involved in the recognition of the CD4 receptor and of the CCR5 or CXCR4 (lymphocyte-specific) receptors. T4 auxiliaries, macrophages; Trkola et al, J. Virol., 72, 1876-85, 1998; Schols et al, J.
- the RSV envelope protein has also been shown to form oligomers found in infected cells and viral particles (Einfeld et al, Proc. Natl. Acad. Sci. USA, 85, 8688-8692, 1988).
- the influenza virus also expresses hemagglutinin on its surface in trimeric form. In the latter case, the multimeric form is necessary for the intracellular transport of the protein (Copeland et al, J. Cell. Biol., 103, 1179-1 191, 1986).
- Influenza also expresses on its surface a neuraminidase in the form of a tetramer (Varghese et al., Nature, 303, 35-40, 1983).
- glycoprotein gp 160 has indeed been described for a long time as being capable of assembling into dimers or tetramers (Pinter et al, J. Virol., 63, 2674-2679, 1989; WO94 / 00557 of the CNRS; Schawaller et al, Virology, 172, 367-369, 1989; Earl et al, Proc. Natl. Acad. Sci., 87, 648-652, 1990; Earl et al, J. Virology, 68, 3015-3026, 1994).
- gp l 60 could in fact naturally associate, through its gp41 part, in the form of trimeres (Min Lu et al, Nature Structural Biology, 2, 1075-1082, 1995; Weisshorn et al, EMBO J., ⁇ 5, 1507-1514, 1996; Weisshorn et al, Nature, 387, 426-430, 1997), dimeric or tetrameric forms resulting in fact from aberrant inter-chain disulfide bridges, or from transient oligomeric forms (see below).
- the glycoprotein of the HIV envelope can be produced and purified, either by culturing the HIV virus on cell lines and by purifying the glycoprotein from the culture medium (CNRS WO94 / 00557), or by expressing a recombinant of this protein by a vector different from HIV, and by purifying it from the culture medium (WO91 / 13906, Chiron).
- gpl 60 The purification of gpl 60 from cells infected with HIV only makes it possible to obtain tetramers, probably a transient oligomeric form, that is to say a form which does not correspond to that taken by its gp41 part on the surface of the virus. (WO94 / 00557 of the CNRS).
- tetramers probably a transient oligomeric form, that is to say a form which does not correspond to that taken by its gp41 part on the surface of the virus. (WO94 / 00557 of the CNRS).
- Parren et al have demonstrated a correlation between obtaining antibodies capable of neutralizing m vitro infection of cells by HIV and the oligomeric nature of gpl 20 (J. of Virology, 72, 3512-3519, 1998 ).
- Parren et al used a gpl 20 expressed by HIV in infected cells, probably to circumvent the problems linked to the structural differences between a native gp l 20, expressed on the surface of HIV, and those produced by vector vectors. expression, such as vaccinia.
- antibodies specific for the oligomeric structure of gp l 60 can be generated (Earl et al, supra), and in fact participate in a neutralizing effect against in vitro infection of cells by HIV.
- the present invention aims to provide a product obtaining method of expression of the env recombinant gene for restoring their trimeric form, this shape being usable in the context of a vaccine or in the implementation of a diagnosis of HIV infection.
- clinical trials conducted on recombinant gp l 60 pose the problem of the spectrum of inhibition which remains limited to a few viral strains only (Pialoux et al, Aids Res. Hum. Retr., ⁇ , 373-381, 1995; Salmon-Céron et al, Aids Res. Hum. Retr., J 2, 1479-1486, 1995).
- the invention relates to any purified recombinant glycoprotein corresponding to the following properties:
- a second object of the present invention relates to a vaccine comprising the purified glycoprotein according to the invention, and an adjuvant.
- a third object of the present invention relates to the use of the glycoprotein according to the invention in the implementation of any method of in vitro diagnosis of infections caused by HIV.
- a final object of the present invention relates to a process for obtaining a glycoprotein according to the invention, in which a glycoprotein corresponding to properties a), b) and c) is expressed by means of genetic recombination techniques.
- he invention is purified and subjected to steps involving at least one reducing agent, an ionic detergent and / or a neutral detergent under conditions such that a glycoprotein corresponding to the conditions according to the invention is obtained.
- the capacity to adhere to CD4 can be determined by radioimmune precipitation, by ELISA or by surface plasmon resonance, the details of these methods being explained in the following description. These methods are likely to be modified within the limits of current knowledge, the objective being to simply ensure that the glycoprotein according to the invention clearly forms a complex with CD4.
- CD4 molecules can be prepared in a variety of ways, including purification from a natural source, or the use of genetic recombination techniques. In this context, one can use the CD4 described in WO8903222, WO8902922, Smith et al (Science, 238, 1704-1707, 1987) and Littman et al (Nature, 325, 453-455, 1987), for example. ERC BioServices Corporation, 649A Lofstrand Lane, Rockeville, MD 20850, USA, also markets a CD4 produced by CHO ST4.2 cells (In: Aids Research and Reference Reagent Program Catalog, the Nat. Inst. Helath USDHHS), by example.
- the adhesion capacity is at least identical to that of a gp l 20 of a strain of infectious HIV, e.g. gp120 from the SF2 isolates, HXB2, BRU, MN, SC, NY5, CDC4 , WMJ2, RF, MAL, ELI, Z96, Z3, Z321 and JY l 5 (Myers et al., Human Retroviruses and Aids, Los Alamos, New Mexico, 1990), or other isolates described by Tersmette et al (J. Virol., 62, 2026-2032, 1988), Popovic et al. (Science, 24, 497-500, 1984), and EP541,753 (Transgene SA), for example.
- a strain of infectious HIV e.g. gp120 from the SF2 isolates, HXB2, BRU, MN, SC, NY5, CDC4 , WMJ2, RF, MAL, ELI, Z96, Z3, Z321 and JY l 5 (My
- the measured affinity by surface plasmon resonance can also be of the order of 10 ' 4 to 10 " 12 M, preferably 10 ⁇ 9 to 10-" M, which is in accordance with the affinities already measured for gpl 20 (Smith et al. , Science, 238: 1704, 1987; Lasky et al, Cell, 50: 975, 1987), for example.
- the recombinant glycoprotein according to the invention also has an affinity with an anti-gpl antibody 20 capable of neutralizing infection of cells by HIV in vitro.
- antibody includes all the immunoglobulins or fragments thereof, of original polyclonal, monoclonal or chimeric (see US4816397), for example. All known antibodies, or antibodies capable of being prepared, capable of recognizing an epitope of gpl 20 and of neutralizing in vitro infection of cells by HIV, can be taken into account in the context of the present invention. It suffices that an HIV glycoprotein has an affinity with an antibody of this type for it to be considered as meeting the needs of the present invention. Without wishing to be limited by the techniques and antibodies which can be used for the purposes of the invention, for information, mention may be made of the articles by VanCott et al. (1995, supra), and Earl et al. (1994, supra), for example.
- the measurement of the affinity of the glycoprotein in trimeric form with the anti-gp41 and anti-gp1 antibodies can be carried out by a direct immunological reaction with the antibody, or by ELIS A, for example.
- the operating conditions may vary within the limits of current knowledge, the variations and / or adaptations with respect to known techniques do not in fact represent a difficult obstacle for those skilled in the art.
- the trimeric form of the glycoprotein according to the invention can be observed on SDS PAGE gel in reducing condition or not (see Example 1).
- a person skilled in the art can however resort to all kinds of other analyzes, such as analytical centrifugation or analysis by light scattering.
- the objective is simply to highlight the association of three molecules of gp l 60 not linked by inter-chain bridges.
- the glycoprotein according to the invention by responding to the properties set out above, can therefore be composed of all or part of the gp41 protein, and of all or part of the gpl 20 protein. Therefore, this glycoprotein can be coded by all or part of an env gene. native (from a HIV isolate) or not, said glycoprotein being either purified at a stage where cleavage is not yet carried out in situ, or said cleavage being rendered inoperative or because of the nature of the host cell that is not provided with the necessary enzymes or because of inhibitors of these enzymes, or even the fact that the cleavage site has been genetically modified, for example.
- Cloning can advantageously be carried out by the PCR technique, followed by insertion of the DNA fragment into an appropriate vector.
- the cleavage site (s) can then be removed by site-directed mutagenesis as described by Kieny et al. (1988, supra), or in Example 1 below.
- the preparation of the vectors, and all the other technical procedures can be carried out according to the protocols described in the works of Sambrook et al. (Molecular Cloning, A Laboratory Manual, Cold Spring Harbor Laboratory Press, USA, 1989).
- the most suitable host cells due to a glycosylation close or even identical to that desired, are higher eukaryotic cells, which may include, for example, immortalized cell lines originating from the monkey (Cos-7, ATCC CRL 1651; Vero76, ATCC CRL 1587), hamster (BHK, ATCC CRL 10; CHO, PNAS USA, 77: 4216, 1980), mouse (TM4, Mather, Biol. Reprod., 23, 243-251, 1980), l man (Hela, ATTC CCL2; W138, ATCC CCL75; Hep G2; HB 8065), dogs (MDCK, ATCC CCL34), etc.
- immortalized cell lines originating from the monkey (Cos-7, ATCC CRL 1651; Vero76, ATCC CRL 1587), hamster (BHK, ATCC CRL 10; CHO, PNAS USA, 77: 4216, 1980), mouse (TM4, Mather, Biol. Reprod., 23, 243-251, 1980), l man (Hela, AT
- the most suitable expression vectors are those reproducing in eukaryotes, in particular the vaccinia virus which is well known in the prior art (WO86 / 07593), for example.
- gpl 60 it is possible in particular to produce gpl 60 according to the teaching described in EP541753 (supra), or gpl 40 according to the method of Earl et al. (1990, supra), or even any other variant of glycoprotein in which one or more parts of gp41 and / or gp l 20 would be eliminated, the objective being that the part gp41 is sufficient for the formation of trimeres to take place, and that the gp 120 part is sufficient to be recognized by neutralizing anti-gpl 20 antibodies and by CD4.
- modified genes env meeting the needs of the present invention, the skilled person is at even to proceed by stage or by chance, and then to choose among all the sequences which do not meet our needs, those which satisfy them.
- glycoprotein After producing glycoprotein by genetic recombinant techniques, or cells infected with HIV, purified using techniques known to the skilled person, including those involving lens lectins (Pialoux et al, 1995, supra; Salmon-Céron and / ,, 1995, supra), that described in WO91 / 13906 (supra) can possibly be further adapted to the needs of the present invention, or even that described in Example 1 (immuno-affinity), for example.
- glycoproteins thus purified have inter-chain disulfide bridges, whatever the nature of the host or of the vector used.
- the glycoproteins actually associate in dimers (part being covalent) visible on SDS PAGE gel after fixing by a bridging agent.
- the purified glycoproteins of cells infected with HIV these also occur in the form of tetramers (WO94 / 00557, 5.//?ra).
- the glycoproteins are therefore dissociated, and then they are subjected to conditions promoting their natural reassembly, that is to say in the form of trimeres.
- the glycoprotein is subjected to steps involving at least one reducing agent, an ionic detergent and / or a neutral detergent under conditions such that a glycoprotein satisfying the needs of the present invention is obtained.
- One or more reducing agent (s) can be chosen from the molecules of dithiothreitol, ⁇ -mercaptoethanol, reduced glutathione or sodium borohydride, for example.
- One or more ionic detergent (s) can be chosen from dodecyl sulfate salts, in particular sodium dodecyl sulfate (SDS) or lithium, dioctyl sulfosuccinate salts (sodium, for example), cetryltrimethylammoniurn (for example from bromine), cetylpyridinium salts (from chlorine, for example), N-dodecyls- or N-tetradecyl-sulfobetaine, zwittergents 3- 14, and 3 - [(3-cholamidopropyl) - dimethylamino] - l -propane sulfonate (CHAPS), for example.
- dodecyl sulfate salts in particular sodium dodecyl sulfate (SDS) or lithium
- dioctyl sulfosuccinate salts sodium, for example
- cetryltrimethylammoniurn for example from bromine
- one or more neutral detergent (s) can be chosen from among tween20®, tween ⁇ O®, octylglucoside, lauryl-maltoside, hecameg®, lauryl-dimethylamine, decanoyl-N- methyl-glucamide, polyethylene glycol-lauryl-ether, newt XI 00®, Lubrol PX®, for example.
- the operating conditions must be sufficient to dissociate the glycoproteins, and reassemble them into trimeres.
- ionic detergent s
- a neutral detergent for example by dialysis.
- the purified glycoproteins are subjected to a reducing agent during the treatment, so as to release the covalent dimers, where appropriate free sulfhydryl functions are blocked by means of molecules.
- suitable such as alkylating agents such as N-ethyl-maleimide or iodo-acetamide, then the remaining sulfhydryl functions are gently re-oxidized in the presence of an oxidizing agent such as oxidized glutathione, for example.
- the purified glycoprotein can be subjected successively to a reducing agent, to an alkylating agent, to an oxidizing agent, to an ionic detergent and to dialysis against a neutral detergent, for example
- the purified glycoprotein can be subjected successively to an ionic detergent, to a reducing agent, to an oxidizing agent and to dialysis against a neutral detergent.
- the neutral detergent can be replaced by an appropriate buffer, for example by means of dialysis.
- Another object of the present invention relates to a vaccine comprising the glycoprotein according to the present invention and an adjuvant.
- This vaccine may contain as a surface antigen of HIV only the glycoprotein according to the present invention, dimeric or monomeric forms of gp l 60 or gpl 20 being specifically excluded, for example, for reasons of reduced immunogénéicity. It is also possible to add to this vaccine other valencies relating to other diseases, the quantities of antigens and / or the formulation of each valence having nevertheless to be probably optimized (s) so as to ensure an effective immune response, for example.
- the valences of other pathogens can come from bacteria, viruses or parasites, for example those causing hepatitis (A to G), measles, mumps, polio, tuberculosis, diphtheria, malaria, etc.
- adjuvants which can be used, one can count all the aluminum salts, such as aluminum phosphates and hydroxides: Freund's adjuvant; N-acetylmuramyl-L-alanyl-D-isoglutamyl-L-alanine-2- [1.2-dipalmitoyl-sn-glycero- 3- (hydroxyphosphoryloxy)] (see Sanchez-Pescador et al. J.
- the vaccine compositions according to the invention can be used for the prevention of infections by HIV-1, the dosage and the route and the frequency of administration, however, probably having to be optimized so as to obtain an effective immune response.
- the Biacore ⁇ is a device for the analysis of biospecific interactions in real time and without labeling which uses the principle of surface plasmon resonance.
- one of the interactants (the ligand) is coupled to a hydrophilic (dextran) or hydrophobic matrix (HPA surface).
- the other interactant (analyte) passes into contact with the surface via a microfluidic transfer cartridge.
- the increase in mass near the surface due to the interaction between the molecules is represented as a function of time on a sensorgram.
- Different coupling chemistries allow the fixation of practically all biomolecules on the matrix. The user therefore creates a tailor-made biospecific surface for each type of application.
- the glycoprotein according to the invention is coupled to the matrix and different concentrations of CD4 are sent by the device in contact with this matrix. Each time the mass of CD4 fixed on the glycoprotein is recorded.
- the Biaeval3® software automatically calculates the dissociation constant of CD4 on gpl 20.
- Figure 1 Representation of the SDS PAGE analysis under reducing conditions obtained with the gpl 60 produced by VVTG9150, purified, processed to make trimers and fixed by a coupling agent (col 3 and 4.); with regard to that obtained in reducing condition with the gp l 60 produced by VVTG9150, purified and directly fixed (col. 2); with regard to that obtained in reducing condition with monomers of gp l 60 (cols 5 and 6); and with regard to that obtained in non-reducing condition with the gp l 60 produced by VVTG9150 and purified (col. 7).
- a recombinant vector based on the vaccinia virus, VVTG9150 is used for the production of gp l 60.
- the construction of the transfer plasmid of the gene coding for the hybrid env protein HIV-1 (M LAI in the genome of the virus of the vaccine VVTG9150 is described below.
- the Pstl-Pstl fragment of pTG 1163, containing the entire gene coding for a gp ⁇ O / HIV- 1 LAi soluble is introduced into the PstI restriction site of M 13mp70, generating M 13TG4137.
- the bacteriophage M 13TG4137 DNA is then cut with Bg I II, digested with polymerase I (Klenow fragment) in order to generate a blunt end, then cut with EcoRl, in order to be inserted at the EcoRV and EcoRl sites of bacteriophage M 13TG4147, generating M 13TG4158.
- a deletion on M 13TG4158 is then carried out with an oligonucleotide, which allows the introduction of a Sphl site and a Sw ⁇ l site.
- the bacteriophage M 13TG4168 is obtained.
- the gene coding for is then amplified from DNA of SupT 1 cells infected with the HIV-1 MN virus by the PCR technique with oligonucleotides which respectively introduce Spl ⁇ and SmaI sites.
- the amplified DNA fragment is then digested with SphI and SmaI and inserted at the corresponding sites of 13TG4168, generating M 13TG4174.
- a mutagenesis directed on M 13TG4174 is carried out with an oligonucleotide making it possible to mutate a potential transcription stop site (TTTTTNT) recognized by the vaccinia virus in the early genes and to introduce an EcoR1 restriction site, thus generating M 13TG8120.
- TTTTNT potential transcription stop site
- the Pstl-Pstl fragment of M 13TG8120 is then cloned into the Pst site of the plasmid pTG9148 generating pTG9150 (the VVTG9150 virus after transfection).
- pG9148 is moreover generated in the following manner: the sequence corresponding to the H5R promoter of the vaccinia virus is amplified by the PCR technique with oligonucleotides introducing respectively BamHI and BglII sites. The amplified DNA fragment is then digested with BglII and BamHI and inserted at the sites correspondent of M 13TG6131 (Gene, 26, 91 -99, 1983) generating M13TG8124. The BamHI-Bg II fragment of M 13TG8124 containing the HSR promoter sequence is introduced into the BamHI restriction site of pTG9133 generating pTG9145.
- VVTG9150 therefore codes for a hybrid and soluble gpl 60 in which the gp l 20 part is derived from HIV-1 MN, and the transmembrane part gp41 comes from an LA I isolate.
- a Sphl restriction site is created immediately downstream of the sequence encoding the signal peptide, without altering the amino acid sequence.
- a Smal restriction site is created immediately above the cleavage sequence between gp 120 and gp41, without altering the amino acid sequence.
- the two cleavage sites in position 507-516 are mutated (original sequence KRR .. .REKR transferred to QNH ... QEHN).
- the sequence encoding the transmembrane hydrophobic peptide IFIMIVGGLVGLRIVFAVLSIV (mined acids 689-710 from Myers et al.) Is deleted.
- a stop codon has been substituted for the second codon E encoding PEGIEE (amino acids 735-740 from Myers et al.), That is to say the 29 th amino acid of the intracytoplasmic domain.
- the gpl 60 hybrid glycoprotein is then purified successively by ion exchange chromatography, immunoaffinity chromatography, gel filtration, and concentration.
- the culture medium containing the gpl 60 is passed successively through two DEAE Trisacryl LS supports.
- Toyopearl® (Tosoh Corp, JP) on which the IAM5F3 antibody was grafted
- the elution is concentrated in an Amicon® cell equipped with a YM30 membrane. Then inactivating the elution or the concentrate in a water bath at 60 ° C for 1 h, and filtered (0,22 ⁇ m) in a Nalgene® container. It is thus possible to obtain approximately 1.34 mg / ml of gp l 60 pure at 91% (visualized on SDS PAGE).
- the sample is placed in a dialysis cassette with a capacity of 3 ml against 3 l of PBS buffer with the OmM of octylglucoside.
- the diaK is carried out overnight at room temperature with gentle stirring.
- the detergent is removed by one or more new dialyses against PBS buffer.
- the gp l 60 thus treated are found in the form of trimeres only.
- FIG. 1 represents the SDS PAGE analysis in reducing condition (DTT) obtained with the gp l 60 produced by VVTG9150, purified, treated to make trimeres and fixed by the bi-functional bridging agent ethylene-glycol-bis-succinimidyl -succinate (EGS) (cols. 3 and 4); with regard to that obtained in reducing condition with the gpl 60 produced by VVTG9150, purified and directly fixed by LEGS (col. 2: dimers); with regard to that obtained in reducing condition with monomers of gpl 60 (col. 5 and 6); and with regard to that obtained in non-reducing condition with the gpl 60 produced by VVTG9150 and purified (col. 7: in the absence of reducing agent, the inter-chain bonds lead to the formation of dimers, trimeres and tetramers).
- DTT SDS PAGE analysis in reducing condition
- Example 2 The vaccinia virus expresses a prolonged gp1 of the first 129 amino acids of the N-terminal part of gp41, as described by Earl et a, Proc. Natl. Acad. Sci. USA, 87, 648-652, 1990. Insofar as the gp41 part is limited to its first 129 amino acids, this part does not contain a transmembrane region.
- This glycoprotein present on SDS PAGE gel has a molecular weight of the order of 140 kD and is commonly called gp 140.
- This gp 140 is purified successively by ion exchange chromatography, affinity chromatography with lens lectins, and by gel filtration, as described by Pialoux et al. (1995, supra) and Salmon-Céron et al. (1 995, supra).
- this method makes it possible to eliminate all the inter-chain disulfide bridges without having to block the sulfhydryl groups with an alkylating agent.
- the gpl 40 thus treated are found in the form of trimeres exclusively.
- the vaccinia virus expresses a gp l 60 as described by Kieny et al. (Protein Engineering, 2, 219-225, 1988). It is purified as described in Example 1, then it is treated with SDS, and it is dialyzed against a PBS buffer containing the OmM of octylglucoside. After treatment, a mixture of non-covalent trimeres and covalent dimers of gpl 60 is obtained, the predominant form consisting of trimeres.
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU50459/99A AU5045999A (en) | 1998-07-31 | 1999-07-29 | Trimer of HIV (ENV) gene expression product |
| EP99934806A EP1100926A1 (fr) | 1998-07-31 | 1999-07-29 | TRIMERE DU PRODUIT D'EXPRESSION DU GENE $i(ENV) DE HIV |
| US09/744,659 US6737067B1 (en) | 1998-07-31 | 1999-07-29 | Trimer of HIV env gene expression product |
| CA002338020A CA2338020A1 (fr) | 1998-07-31 | 1999-07-29 | Trimere du produit d'expression du gene env de hiv |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9810027A FR2781676B1 (fr) | 1998-07-31 | 1998-07-31 | Trimere du produit d'expression du gene env de hiv |
| FR98/10027 | 1998-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000008167A1 true WO2000008167A1 (fr) | 2000-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1999/001871 Ceased WO2000008167A1 (fr) | 1998-07-31 | 1999-07-29 | Trimere du produit d'expression du gene env de hiv |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6737067B1 (fr) |
| EP (1) | EP1100926A1 (fr) |
| AU (1) | AU5045999A (fr) |
| CA (1) | CA2338020A1 (fr) |
| FR (1) | FR2781676B1 (fr) |
| WO (1) | WO2000008167A1 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2830534A1 (fr) * | 2001-10-05 | 2003-04-11 | Aventis Pasteur | Antigene polypeptidique formant une structure mimant l'etat intermediaire de gp41. |
| WO2003042388A1 (fr) * | 2001-10-05 | 2003-05-22 | Aventis Pasteur | ANTIGENE POLYPEPTIDIQUE FORMANT UNE STRUCTURE MIMANT L'ETAT INTERMEDIAIRE DE gp41 |
| US6861253B2 (en) | 2001-01-05 | 2005-03-01 | Aventis Pasteur S.A. | Polypeptide inducing antibodies neutralizing HIV |
| US7056519B2 (en) | 2002-05-17 | 2006-06-06 | Aventis Pasteur S.A. | Methods for inducing HIV-neutralizing antibodies |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0422439D0 (en) * | 2004-10-08 | 2004-11-10 | European Molecular Biology Lab Embl | Inhibitors of infection |
| DE602005015256D1 (de) * | 2004-12-29 | 2009-08-13 | Seattle Biomedical Res Inst | Hetero-oligomere hiv-hüllproteine |
| WO2007149490A1 (fr) * | 2006-06-19 | 2007-12-27 | Progenics Pharmaceuticals, Inc. | Procédés de récupération de formules stabilisées de trimères de protéines d'enveloppe (env) rétrovirale |
| CA2655934A1 (fr) * | 2006-06-19 | 2007-12-27 | Progenics Pharmaceuticals, Inc. | Proteines env vih trimeriques solubles stabilisees et leurs utilisations |
| CA2667358A1 (fr) * | 2006-10-23 | 2008-05-29 | Progenics Pharmaceuticals, Inc. | Polypeptides d'enveloppe gp140 modifies en provenance d'isolats du vih-1, compositions, complexes trimeriques et utilisations de ceux-ci |
| EP3187585A1 (fr) | 2010-03-25 | 2017-07-05 | Oregon Health&Science University | Glycoprotéines de cytomégalovirus (cmv) et vecteurs de recombinaison |
| ES2667425T3 (es) | 2011-06-10 | 2018-05-10 | Oregon Health & Science University | Glucoproteínas y vectores recombinantes de CMV |
| EP2568289A3 (fr) | 2011-09-12 | 2013-04-03 | International AIDS Vaccine Initiative | Immunosélection du virus de la stomatite vésiculaire recombinant exprimant les protéines du VIH-1 par des anticorps largement neutralisants |
| EP2755684A1 (fr) * | 2011-09-12 | 2014-07-23 | Jonathan Norden Weber | Procédés et compositions destinés à susciter une réponse immune contre le vih |
| US9402894B2 (en) | 2011-10-27 | 2016-08-02 | International Aids Vaccine Initiative | Viral particles derived from an enveloped virus |
| ES2631608T3 (es) | 2012-06-27 | 2017-09-01 | International Aids Vaccine Initiative | Variante de la glicoproteína Env del VIH-1 |
| EP2848937A1 (fr) | 2013-09-05 | 2015-03-18 | International Aids Vaccine Initiative | Procédés d'identification de nouveaux immunogènes du VIH-1 |
| EP2873423B1 (fr) | 2013-10-07 | 2017-05-31 | International Aids Vaccine Initiative | Trimères de glycoprotéines d'enveloppe du vih -1 soluble |
| US10174292B2 (en) | 2015-03-20 | 2019-01-08 | International Aids Vaccine Initiative | Soluble HIV-1 envelope glycoprotein trimers |
| US9931394B2 (en) | 2015-03-23 | 2018-04-03 | International Aids Vaccine Initiative | Soluble HIV-1 envelope glycoprotein trimers |
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| WO1994000557A1 (fr) * | 1992-06-30 | 1994-01-06 | Centre Nat Rech Scient | Procede d'obtention de proteines membranaires, permettant le maintien des structures oligomeriques de ces proteines en conditions denaturantes, et utilisation de ces proteines dans un but de diagnostic ou de vaccination |
| WO1999016883A2 (fr) * | 1997-10-01 | 1999-04-08 | Dana-Farber Cancer Institute | Stabilisation des glycoproteines trimeres d'enveloppe au moyen de liaisons bisulfure introduites dans un ectodomaine de la glycoproteine gp41 |
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| US5122468A (en) * | 1988-08-16 | 1992-06-16 | Akzo N.V. | Hut-78 cell lines infected with HTLV-III which secrete gp160 |
| EP0679187B2 (fr) * | 1993-01-16 | 2001-07-04 | SCHAWALLER, Manfred | Procede permettant d'obtenir des ectodomaines natifs, oligomeriques, glycosyles de proteines virales membranaires, leur utilisation, notamment comme vaccin contre le vih |
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1998
- 1998-07-31 FR FR9810027A patent/FR2781676B1/fr not_active Expired - Fee Related
-
1999
- 1999-07-29 CA CA002338020A patent/CA2338020A1/fr not_active Abandoned
- 1999-07-29 EP EP99934806A patent/EP1100926A1/fr not_active Withdrawn
- 1999-07-29 US US09/744,659 patent/US6737067B1/en not_active Expired - Fee Related
- 1999-07-29 WO PCT/FR1999/001871 patent/WO2000008167A1/fr not_active Ceased
- 1999-07-29 AU AU50459/99A patent/AU5045999A/en not_active Abandoned
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| WO1994000557A1 (fr) * | 1992-06-30 | 1994-01-06 | Centre Nat Rech Scient | Procede d'obtention de proteines membranaires, permettant le maintien des structures oligomeriques de ces proteines en conditions denaturantes, et utilisation de ces proteines dans un but de diagnostic ou de vaccination |
| WO1999016883A2 (fr) * | 1997-10-01 | 1999-04-08 | Dana-Farber Cancer Institute | Stabilisation des glycoproteines trimeres d'enveloppe au moyen de liaisons bisulfure introduites dans un ectodomaine de la glycoproteine gp41 |
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| WYATT R ET AL: "The antigenic structure of the HIV gp120 envelope glycoprotein [see comments].", NATURE, (1998 JUN 18) 393 (6686) 705-11. JOURNAL CODE: NSC. ISSN: 0028-0836., ENGLAND: United Kingdom, XP002101350 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6861253B2 (en) | 2001-01-05 | 2005-03-01 | Aventis Pasteur S.A. | Polypeptide inducing antibodies neutralizing HIV |
| FR2830534A1 (fr) * | 2001-10-05 | 2003-04-11 | Aventis Pasteur | Antigene polypeptidique formant une structure mimant l'etat intermediaire de gp41. |
| WO2003042388A1 (fr) * | 2001-10-05 | 2003-05-22 | Aventis Pasteur | ANTIGENE POLYPEPTIDIQUE FORMANT UNE STRUCTURE MIMANT L'ETAT INTERMEDIAIRE DE gp41 |
| US6821723B2 (en) | 2001-10-05 | 2004-11-23 | Aventis Pasteur S.A. | GP41 antigen |
| US7056519B2 (en) | 2002-05-17 | 2006-06-06 | Aventis Pasteur S.A. | Methods for inducing HIV-neutralizing antibodies |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2338020A1 (fr) | 2000-02-17 |
| EP1100926A1 (fr) | 2001-05-23 |
| FR2781676B1 (fr) | 2004-04-02 |
| AU5045999A (en) | 2000-02-28 |
| US6737067B1 (en) | 2004-05-18 |
| FR2781676A1 (fr) | 2000-02-04 |
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