[go: up one dir, main page]

WO1994018947A1 - High purity protamine-dna complex and use of same - Google Patents

High purity protamine-dna complex and use of same Download PDF

Info

Publication number
WO1994018947A1
WO1994018947A1 PCT/US1993/001542 US9301542W WO9418947A1 WO 1994018947 A1 WO1994018947 A1 WO 1994018947A1 US 9301542 W US9301542 W US 9301542W WO 9418947 A1 WO9418947 A1 WO 9418947A1
Authority
WO
WIPO (PCT)
Prior art keywords
aqueous
protamine
process according
dna complex
mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1993/001542
Other languages
French (fr)
Inventor
Sharifa Karali
John K. Barberii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1994018947A1 publication Critical patent/WO1994018947A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/46Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/17Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans

Definitions

  • the present invention relates, generally, to a process for the preparation and use of chemotherapeutic agents.
  • the present invention relates to a process for the preparation of high purity
  • nucleoprotamine-DNA complex substances and a process for their use as an anti-tumor or anti-viral agent, including their use as an anti-AIDS agent. Additionally, research data exists to further suggest that certain aging
  • nucleoprotamine-DNA complex substances are also useful in a variety of other medical conditions, some of which are serious, in humans and other mammals. Elevated serum cholesterol levels have also responded favorably to treatment.
  • Nucleohistones have been generally known to the art to be closely associated with DNA, and research evidence exists to suggest that such substances protect DNA by wrapping about the double helix of the DNA in adult cells.
  • Hnilica, Lubomir S. The Structure and Biological Functions of
  • nucleoprotamines are physically associated with the DNA of embryonic tissue and are not found in adult cells.
  • protamines have overall positive charges and are in the basic range of pH. Additionally, both are bound to the negative charge of DNA, with known affinity constants, and both are shielded by the negative charge of DNA. Histones are known to be soluble in very dilute mineral acids, but insoluble in both very dilute mineral acids and mild aqueous NH 4 OH.
  • histones, and possibly protamines and protamine-like polypeptides exert a control function over DNA through a direct physical contact, or a lack thereof, at a myriad of sites along the DNA in the genome of all living cells.
  • This direct physical contact at the molecular level constitutes charge cloud interactions between the proteins and the deoxyribose background.
  • histones and protamines act as merely a protective wrapper for the cellular DNA and lack th expected variability in their amino acid sequence to control transcription of messenger RNA (mRNA).
  • DNA helices have a major and minor groove along the alpha-helix.
  • DNA bases appear to be in the bottom of the major groove, and the deoxyribose backbone in the bottom of the minor groove.
  • sequence specific proteins may attach at either the minor or major groove sites, along with histone and protamines or
  • protamine-like proteins to control transcription or DNA, has been widely accepted. See, Li, Hsueh Jei, Chromatin and Chromosome Subunits, Academic Press, New York (1977).
  • Simple systems for the control of DNA expression are also well known to the prior art, such as the Lactose Operon (LAC Operon) system of prokaryotic cells.
  • LAC Operon Lactose Operon
  • An analysis of this operon model illustrates the concept of repressors and inducers as being fundamental control systems for mRNA transcription. See, e.g., Kim, R., and S.H. Kim, "Direct measurement of DNA unwinding angle in specific interaction between lac operator and repressor.” Cold Spring Harbor Symp. Quant. Biol., 47: 481-484 (1983); Wang, J., M. D.
  • Galactose along with catabolite activator protein (CAP), cyclic AMP (c-AMP), and RNA polymerase are capable of acting as an inducer, displacing the LAC repressor protein from the operator site, presumably accessable through the major groove, binding with the promotor side, and allowing
  • glucose acts to block the formation of the active inducer complex and the cell's own heterogeneous repressor remains attached to the operator site, with no transcription of the LAC genes possible.
  • glucose controls the transcription of the LAC operon.
  • Repressors under this theory have a negative influence on transcription, and this is an important aspect of control which the invention focuses upon.
  • repressors may have developed, through evolution, as mutations, or acquired oncogenes, in very early unicellular promordial organisms.
  • a mutant, with an incomplete repressor, may have had a competitive, if not at least a metabolic advantage, if it could halt the
  • viruses may have developed their own cell-directed repressors, encoded into viral DNA or RNA, transcribed when the virus DNA infected the host DNA, or translated from viral RNA, and subsequently pre-packaged with the viral genetic material during lysogeny phase in prokaryotic cells.
  • C-rep The cell's repressor
  • the cell's repressor has evolved a very specific operator region to match its complementary operator site (e.g., only 27 base-pairs long, with some symmetry, in E. coli.), with matched base sequence by base pair to base pair in the operator region; a form of evolved primary structure, with a high rate constant of association (e.g., 7 x 10 9 m -1 sec -1 in E. coll.); and, other primary,
  • V-rep viral repressor
  • the general histological changes of tissue associates with the regression of a cell toward a cancer are known.
  • Such cells are less differentiated, tend to function and appear as embryonic tissues and have been described as chaotic in their metabolic pathways and metastatic without regard to their proper location.
  • control of protein synthesis means proper health for a cell. Conversely, the lack of control or proper regulation of protein synthesis results in aberrant
  • nucleoprotamine therapy states that the treatment of mammals with specifically timed collection of extracted nucleoprotamine and protamine-like proteins removes false repressors and false inducers, due to the lack of complete operon affinity in these heterogenetic proteins.
  • the allogenetic repressor is, in all likelihood, poorly physically bound to the operator region of the operon thereby physically preventing the attachment of the RNA polymerase to make the mRNA template of the protein.
  • protamine-DNA complexes After administered protamine-DNA complexes arrive in the repressed cell, there is a relative abundance of protamine, as compared with functional cellular DNA.
  • the actual substitution of protamine follows a simple competitive inhibition model where the success of replacing the foreign repressor protein is directly proportional to a high protamine-DNA/foreign repressor ratio.
  • the reaction is also influenced by the destruction of the allogenetic DNA of the original protamine-DNA complex, stopping the return of the protamine molecule to the allogenetic donor from the cell's heterogenetic DNA, thus making the reaction
  • an object of the present invention to provide an improved process for the production of high purity nucleoprotamine-DNA complex substances.
  • nucleoprotamine-DNA complex compounds as anti-tumor or anti-viral agents.
  • the foregoing and related objects are accomplished by a process in which high purity protamine-DNA complexes are prepared by collecting nucleoprotamines specific developmental stages of a life form, specifically, fertilized amphibian, egg by low temperature processing.
  • the process also includes the steps of sequential homogenization in a high concentration aqueous salt solution and a citric acid buffer, at a low pH of approximately 2.2, followed by ultracentrifugation to remove insoluble matter. These steps are then followed by an aqueous chloroform extraction to isolate protein and to remove lipids and lyophilization.
  • Single pass alumina chromatography is then used to separate each active protamine and protamine-like basic fraction. Dialysis against pure water removes excess salt, and
  • lyophilization increases concentration of each separated protamine and protamine-like protein.
  • Each isolate may the be reconstituted with 5% weight/volume heterologous or homologous DNA, in order to shield from charge toxicity.
  • Sterile filtration produces injection quality physiologic aqueous form.
  • a precipitation in sterile pure water, followed by lyophilization to remove water and to produce a solid form of the protamine-DNA complex obtained, is also recommended for dry preservation.
  • protamine-DNA complex Following isolation of the protamine-DNA complex, encapsulation of the prepared solid or aqueous protamine-DN complexes, in a specific carrier substance, may be
  • encapsulation carriers are known from prior art literature, such as, for example, liposomes and nanoparticles.
  • nucleo- protamine-DNA complex compound produced in accordance with the present invention as described hereinabove is
  • developmentally-timed nucleoprotamine has a utility for inhibiting tumor cell growth; inhibiting viral reproduction; and, regulating mammalian cellular metabolism by directly influencing DNA transcription at the macromolecular level - a phenomenon that may delay, or even reverse, the observed physiological changes we associate or attribute to aging.
  • the present invention concerns a process that allows for the maximum extraction of
  • nucleoprotamine from any fertilized egg source with the protamine being extracted at the proper time during
  • the eggs may be defrosted at room temperature and mixed with an equal volume of 4 M aqueous NaCl solution buffered to pH 2.2 with 1/10 volume 0.1 M sodium citrate.
  • Tissue homogenation was accomplished with a Brinkman Polytron homogenizer set on #6, as understood in the art, for 4 to 5 minutes until all the eggs are finely ground into a thick gray emulsion.
  • This thick emulsion is ultra- centrifuged at 15,000+ g's for 15 minutes in a refrigerated centrifuge.
  • the cloudy, gray supernate is then easily poured off the brown and black granular sediment.
  • This supernate contains the cytoplasm, without organelles, and nucleoplasm, with unbound nucleoprotamine released from its close relationship with DNA by the high concentration of salt and acidic pH.
  • Serum protein electrophoresis at this stage, further shows a crude, but relatively pure Beta electrophoretic range protein peak, i.e., the crude,
  • CPDNA protamine-DNA
  • Further processing includes chloroform extraction of protein. This requires the addition of 0.1 g of Na 2 CO 3 per 20 cc of supernate, stirred incubation at 50° C. for 30 minutes at an adjusted pH of 7 with glacial acetic acid, and the addition of an equal volume of chloroform with 0.1 volume amyl alcohol. The mixture is then shaken for 10 minutes and centrifuged to separation at 2,000 g. The topmost pure aqueous layer of the resultant three-layer liquid is discarded. The middle layer, being of chloroform- alcohol-protein is removed from the lower layer of
  • protamines identified by basic Isoelectric Focusing (IEF), with a pI of approximately 9.50. Further purification involves separating the purified protamines and protamine- like proteins into discrete fractions by alumina
  • the salt content in the foregoing procedure can be reduced to 0.09% (physiologic) saline by dialysis against pure water. Addition of DNA at approximately 5.0 mol percent causes microprecipitation during dialysis. This results in reconstitution of protamine-DNA via micro- precipitation of the free base protamine with the available 1:1 mole ration DNA and reduced toxicity.
  • the DNA used in reconstitution may be of heterogenetic or homogenetic origin, i.e., from the protamine donor tissue or the target tissue.
  • This reconstituted protamine-DNA complex (RPDNA) can then be encapsulated and directed more specifically to target tissues.
  • the crude protamine-DNA may be precipitated to form wispy white tendrils in sterile double distilled water. This precipitate is easily separated by repeated centrifugation at 15,000 g's and decanting off the
  • the wet precipitate can be crystalized in a lyophilizer at 0.001 torr and -40° C. until reduced to an amorphous light brown sticky material, with the consistency of coarse cotton candy.
  • protamine-DNA complex is readily absorbed across the
  • testing data is presented as tumor size, calculated volume and growth curves during in vivo testing against B16F10 murine melanoma in C57BL6 mice, modeled after the National Cancer Center
  • Protocols for limited cohort group testing.
  • V [(d 1 + d 2 )/4] 2 pI The volume of a given mouse's leg on Day 0 was
  • NTV net tumor volume
  • test group as opposed to the control group, generally had a smaller amount of net tumor volume.
  • the product produced in accordance with the present invention as described hereinabove can be used to treat humans afflicted with cancers.
  • the product is generally administered in the form of a mixture of aqueous fractions, or can be given as the precipitated protamine and DNA complex, in a powder type form.
  • the treatment of cancer was confirmed by a patient who had the condition known as adenocarcinoma of the prostate. After the treatment remission of the condition of
  • adenocarcinoma of the prostate was obtained, documented by reduction in Prostate Specific Antigen and clinical
  • the product disperses into a family of active polypeptides, small enough to be absorbed across a variety of cell membranes, including the gut, liver, and vascular channels.
  • the family of polypeptides is
  • the family of polypeptides gains access to the host cell DNA, and can strip away false repressors and inducers of tumor origin that are disrupting the normal expression of phenotype by the cancerous cell.
  • IP indicates intraperitoneal injection route
  • the methods of administering the product are disclosed as another feature of the invention.
  • the effective dose is in the range of 13 to 26 mg per kilogram body weight of recipient per day. In clinical trials, oral doses were given in this range once a day.
  • Administration may be by some suitable route including oral, rectal, nasal, topical (including buccal and
  • a typical once daily oral dose might consist of eight ounces of liquid carrier, such as water, with 1,000 to 2,000 mg of product dissolved in it.
  • the product might be administered in conjunction with other known medications such as Leuprolide, Buserelin, Goserelin, Narfarelin, Flutamide, Finasteride, Parazosin, Terazosin, Testolactone, Atamestane, or in conjunction with surgical modalities such as orchiectomy, or local radiation therapy.
  • other known medications such as Leuprolide, Buserelin, Goserelin, Narfarelin, Flutamide, Finasteride, Parazosin, Terazosin, Testolactone, Atamestane, or in conjunction with surgical modalities such as orchiectomy, or local radiation therapy.
  • the various formulations of the product may be prepared for use by any methods well known in the art of pharmacy.
  • Such formulations would generally include an acceptable carrier, in terms of being compatible with the polypeptide ingredients.
  • the formulations may not be limited to those suitable for oral, rectal, nasal, topical (including buccal and sublingual), vaginal or parenteral (including
  • the formulations may be presented in unit dose form for any route.
  • Oral formulations are not limited to pressed or molded tablet, capsules or caplets, aqueous solution, sustained release capsules, emulsified slurry, oral troche or lozenge, pastilles, mouthwashes, nanoparticles, or liposomes, all containing a predetermined amount of the polypeptide family constituents.
  • the proportions of each polypeptide may vary, depending upon the desired effect on the host tumor and experience of the administrator.
  • Formulations for topical administration may be made by mixing an appropriate carrier into ointments, creams, jels, or pastes.
  • Transderm patches may be made with current release technology.
  • Formulations for rectal administration may include suppository, and retention oil or liquid, and foam carriers.
  • Formulations for vaginal use include pessaries, tampons, creams, gels, pastes, foams, or sprays, all of the
  • Formulations for nasal administration include powdered precipitated polypeptides suitable for nasal inhalation, or gels, drops, sprays, packings, all of a compatible carrier.
  • Formulations for parenteral administration include sterile aqueous and non-aqueous injection solutions which may include antioxidants, buffers, bacteriostats, or
  • the formulations may be presented in unit dose or multidose containers, such as sealed vials, or ampules. Lyophilized preparations may require
  • formulations may include other agents or apparatus conventional in the art of the formulation in question, for example a nasal inhalator or transdermal patch dispersal system.
  • nucleoprotamine-DNA complex compound produced in accordance with the present invention as described hereinabove is used treating a human Acquired Immuno
  • Deficiency Syndrome When the new product was used for treatment of AIDS, it reduced the P-24 antigen and Beta 2 Microglobulins, all markets of HIV viral activity; reduced or slowed the loss of Human T lymphocytes from patients with Acquired Autoimmune Deficiency Syndrome (AIDS), and increased the T Helper (CD4) to T Suppressor (CD8) Ratio; reversed the weight loss of the wasting syndrome associated with AIDS; contributed to the sense of well-being of AIDS patients, by increasing energy levels, and reduced common complaints of fatigue, muscle aches, neuritis, and
  • the product disperses into a family of active polypeptides, small enough to be absorbed across a variety of cell membranes, including the gut, liver, and vascular channels.
  • the family of polypeptides is
  • the family of polypeptides gains access to the host cell DNA, and can strip away false repressors and inducers of HIV origin that are disrupting the normal expression of
  • the methods of administering the product are disclosed as another feature of the invention.
  • the effective dose is in the range of 1 to 15 m g per kilogram body weight of recipient per day. In clinical trials, oral doses were given in this range once a day, and mouse data indicated a half life of 24 to 48 hours.
  • Administration may be by some suitable route including oral, rectal, nasal, topical (including buccal and
  • a typical once daily oral dose might consist of eight ounces of liquid carrier, such as water, with 70 to 1,000 mg of product dissolved in it.
  • the product might be administered in conjunction with other known medications such as acyclovir, AZT, DDI, DDC, interferon, or other immunomodifiers or immunostimulants .
  • other known medications such as acyclovir, AZT, DDI, DDC, interferon, or other immunomodifiers or immunostimulants .
  • compositions of the product may be prepared for use by any methods well known in the art of pharmacy. Such formulations would generally include an acceptable carrier, in terms of being compatible with the polypeptide ingredients.
  • the formulations may not be limited to those suitable for oral, rectal, nasal, topical (including buccal and sublingual), vaginal or parenteral (including
  • the formulations may be presented in unit dose form for any route.
  • Oral formulations are not limited to pressed or molded tablet, capsules, or caplets, aqueous solution, sustained release capsules, emulsified slurry, oral troche or lozenge, pastilles, mouthwashes, nanoparticles, or liposomes, all containing a predetermined amount of the polypeptide family constituents.
  • the proportions of each polypeptide may vary, depending upon the desired effect of the host DNA, and experience of the administrator.
  • Formulations for topical administration may be made by mixing an appropriate carrier into ointments, creams, jels, or pastes.
  • Transderm patches may be made with current release technology.
  • Formulations for rectal administration may include suppository, and retention oil or liquid, and foam carriers.
  • Formulations for vaginal use include pessaries, tampons, creams, gels, pastes, foams, or sprays, all of the
  • Formulations for nasal administration include powdered precipitated polypeptides suitable for nasal inhalation, or gels, drops, sprays, packings, all of a compatible carrier.
  • Formulations for parenteral administration include sterile aqueous and non-aqueous injection solutions which may include antioxidants, buffers, bacteriostats, or
  • the formulations may be presented in unit dose or multidose containers, such as sealed vials, or ampules. Lyophilized preparations may require
  • formulations may include other agents or apparatus conventional in the art of the formulation in question, for example a nasal inhalator or transdermal patch dispersal system.
  • Patient 2 also again took the same oral regimen. He experienced a two percent reduction in the surface area of Kaposi's Sarcoma lesions. No side effects were documented.
  • P24 P24 Antigen, pg/ml

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Zoology (AREA)
  • Organic Chemistry (AREA)
  • Gastroenterology & Hepatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Genetics & Genomics (AREA)
  • Toxicology (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Immunology (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

A high-purity protamine-DNA complex, produced by a process consisting essentially of the sequential steps of collecting and treating a nucleoprotamine from a development stage of a life form by homogenization in an aqueous buffered salt solution to obtain a mixture, removing insoluble matter from the mixture of said collecting and treating steps, isolating protein and removing lipids from the mixture by an aqueous chloroform extraction, performing dialysis of the protein against sterile water, to remove excess salt, reconstituting the protein with heterogenous DNA of a target tissue, and sterile filtration to obtain an aqueous protamine-DNA complex. The method of treating a human having tumor comprises the administration of an effective tumor treatment amount of the inventive product to said human. The method of treating a human having Acquired Immuno Deficiency Syndrome, comprises the adminitration of an effective immuno deficiency syndrome treatment amount of the inventive product to said human.

Description

Description High Purity Protamine-DNA Complex and Use of Same
Technical Field
The present invention relates, generally, to a process for the preparation and use of chemotherapeutic agents.
More particularly, the present invention relates to a process for the preparation of high purity
nucleoprotamine-DNA complex substances and a process for their use as an anti-tumor or anti-viral agent, including their use as an anti-AIDS agent. Additionally, research data exists to further suggest that certain aging
characteristics, in test animals, might be slowed, or even reversed, with the foregoing chemical agents.
Background Art
The nucleoprotamine-DNA complex substances are also useful in a variety of other medical conditions, some of which are serious, in humans and other mammals. Elevated serum cholesterol levels have also responded favorably to treatment.
Nucleohistones have been generally known to the art to be closely associated with DNA, and research evidence exists to suggest that such substances protect DNA by wrapping about the double helix of the DNA in adult cells. Hnilica, Lubomir S., The Structure and Biological Functions of
Histones, p. 37 (CRC Press 1972). By contrast,
nucleoprotamines are physically associated with the DNA of embryonic tissue and are not found in adult cells.
Nucleohistones and nucleoprotamines, however, do
possess several common characteristics: Both are generally low molecular weight polypeptides ( 30,000 Dalton), rich in the amino acid arginine, slowly soluble in water, and resistance to heat coagulation. Both histones and
protamines have overall positive charges and are in the basic range of pH. Additionally, both are bound to the negative charge of DNA, with known affinity constants, and both are shielded by the negative charge of DNA. Histones are known to be soluble in very dilute mineral acids, but insoluble in both very dilute mineral acids and mild aqueous NH4OH.
In the past several years, various research
investigators have suggested that histones, and possibly protamines and protamine-like polypeptides, exert a control function over DNA through a direct physical contact, or a lack thereof, at a myriad of sites along the DNA in the genome of all living cells. This direct physical contact at the molecular level constitutes charge cloud interactions between the proteins and the deoxyribose background. The isolation of only a few histone and protamine subunits, and the monotony of their amino acid sequences in different tissues from the same animal, and even from different animals, has suggested that histones and protamines act as merely a protective wrapper for the cellular DNA and lack th expected variability in their amino acid sequence to control transcription of messenger RNA (mRNA).
Furthermore, the structural theories about DNA have suggested that DNA helices have a major and minor groove along the alpha-helix. DNA bases appear to be in the bottom of the major groove, and the deoxyribose backbone in the bottom of the minor groove. Speculation that sequence specific proteins may attach at either the minor or major groove sites, along with histone and protamines or
protamine-like proteins, to control transcription or DNA, has been widely accepted. See, Li, Hsueh Jei, Chromatin and Chromosome Subunits, Academic Press, New York (1977).
Simple systems for the control of DNA expression are also well known to the prior art, such as the Lactose Operon (LAC Operon) system of prokaryotic cells. An analysis of this operon model illustrates the concept of repressors and inducers as being fundamental control systems for mRNA transcription. See, e.g., Kim, R., and S.H. Kim, "Direct measurement of DNA unwinding angle in specific interaction between lac operator and repressor." Cold Spring Harbor Symp. Quant. Biol., 47: 481-484 (1983); Wang, J., M. D.
Barkley, and S. Bourgeois, "Measurements of unwinding of lac operator by repressor." Nature, 251: 247-249 (1974).
In the LAC Operon, a promoter site on the DNA is
followed by an operator site and structural gene sequences for three enzymes required for the hydrolysis and control of the galactose to glucose metabolic pathway. Galactose, along with catabolite activator protein (CAP), cyclic AMP (c-AMP), and RNA polymerase are capable of acting as an inducer, displacing the LAC repressor protein from the operator site, presumably accessable through the major groove, binding with the promotor side, and allowing
transcription of the structural genes to proceed. If glucose is present, it acts to block the formation of the active inducer complex and the cell's own heterogeneous repressor remains attached to the operator site, with no transcription of the LAC genes possible.
Thus, by negative feedback inhibition, glucose controls the transcription of the LAC operon. Repressors, under this theory have a negative influence on transcription, and this is an important aspect of control which the invention focuses upon.
By way of background, repressors may have developed, through evolution, as mutations, or acquired oncogenes, in very early unicellular promordial organisms. A mutant, with an incomplete repressor, may have had a competitive, if not at least a metabolic advantage, if it could halt the
production of a protein when the protein was sufficiently abundant in the cytoplasm, and then re-start production of the protein as the need was developed in the cell. It is postulated that a mutant with an incomplete repressor would consume less energy than those of a normal phenotype and would be favored for survival under the theory of natural selection. Complete repressor mutants must have obviously died, if the synthesis of the particular protein so
repressed was critical for survival. However, the
incomplete repressor mutant could have survived if the repressor was only "loosely" attached to the operator site, and a cellular protein, or lack of such protein, influenced the repressor to "fall off" the particular operator site.
Now consider obligate parasites, such as a virus.
For such parasites to have the ability to shut-down a host cell's transcription of proteins for the the host cell, so that the "pirated" cellular machinery could be utilized to transcribe viral proteins, would yield such "life" forms a tremendous evolutionary advantage. Again, by evolution and mutation, viruses may have developed their own cell-directed repressors, encoded into viral DNA or RNA, transcribed when the virus DNA infected the host DNA, or translated from viral RNA, and subsequently pre-packaged with the viral genetic material during lysogeny phase in prokaryotic cells. Evidence that transcription of prokaryotic cellular proteins frequently ceases within minutes after viral infection, strongly supports this theory. Stryer, Lubert,
Biochemistry, p. 712 (W. H. Freeman and Company, San
Francisco, 1975).
The infection of eukaryotic cells, by contrast,
rarely leads to a total shutdown of host transcription, but rather, results in subtle repressor mediated subversion of both cytoplasmic and nuclear host process; possibly the next stage in the evolutionary process, avoiding a less energy efficient total shutdown.
Consider the specificity of the foregoing types of repressors, one of homogenetic cellular origin, and one, what is recognized by the cell to be, of allogenetic viral origin. The cell's repressor (C-rep) has evolved a very specific operator region to match its complementary operator site (e.g., only 27 base-pairs long, with some symmetry, in E. coli.), with matched base sequence by base pair to base pair in the operator region; a form of evolved primary structure, with a high rate constant of association (e.g., 7 x 10 9 m-1 sec-1 in E. coll.); and, other primary,
secondary, tertiary and quarternary protein structural evolutions in the remainder of the specialized globular protein (approximately 30,000 Daltons) to interpret the various cytoplasmic signals that dictate to "release" or "remain attached." Stryer, Lubert, Biochemistry, p. 684 (W. H. Freeman and Company, San Francisco, 1975).
Concerning the viral repressor (V-rep), originating from a viral DNA (or, in some cases, RNA) strand of small proportions (e.g., 106 - 107 Daltons) (Stryer, Lubert,
Biochemistry, p. 709 (W. H. Freeman and Company, San
Francisco, 1975)), it would be of great advantage to the viral repressor if it were to successfully complement the base pairing of the operator region in a number of host cells. This would be expected if the base pairing in the operon anticodon region of the V-rep was less specific than that of the C-rep. In short, viruses, and possibly other living organisms, have probably evolved poor fitting, but nonetheless effective repressors, when at an evolutionary advantage to do so. In fact, as discussed above, perfectly fitting repressors could conceivably act as complete
repressors, thereby possibly having a lethal effect on the cell.
Consider, now, the situation presented when a host cell is under attack or otherwise infected by an assortment of viral agents and other life forms; poorly fitting
allogenetic repressors, repressors evolved without the globular protein structure necessary for their timely removal at specific intracellular prompt conditions. Under such conditions, it is clear that the control of protein synthesis within the cell may be several affected.
Now, reconsider the postulated evolutionary trends of repressors, but now allow for inducers, globlar proteins (or combinations of proteins) that greatly enhance m-RNA
transcription rates, to also be imitated. Not only are host cells producing less of some proteins due to repression, but the host may actually begin to produce greater amounts of other proteins due to allogenetic inducers. False
allogenetic repression and induction may completely disrupt a cell's metabolic process, and at the simplest level, the disruption of ca cell's normal metabolic processes are the classic causes of cancer.
The general histological changes of tissue associates with the regression of a cell toward a cancer are known.
Such cells are less differentiated, tend to function and appear as embryonic tissues and have been described as chaotic in their metabolic pathways and metastatic without regard to their proper location.
Thus, control of protein synthesis means proper health for a cell. Conversely, the lack of control or proper regulation of protein synthesis results in aberrant
metabolism, dysfunction and sometimes even death of the cell.
The theory behind nucleoprotamine therapy states that the treatment of mammals with specifically timed collection of extracted nucleoprotamine and protamine-like proteins removes false repressors and false inducers, due to the lack of complete operon affinity in these heterogenetic proteins.
Additionally, consider an important adult tissue operon (a length of genetic coding sequence required to make a protein necessary for the health of the cell) that has been repressed by a repressor protein of allogentic origin, such a viral protein from a recent viral infection. Adaptation of Wilkin's 1956 model depicts an allogenetic repressor occupying the major groove of the DNA helix over an operator region. Wilkins, M. H. F., Physical Studies of the
Molecular Structure of Deoxyribose Nucleic Acid and
Nucleoprotein, Cold Spring Harbor Symposium Quantitative Biology, 21, 75-90 (1956). The allogenetic repressor is, in all likelihood, poorly physically bound to the operator region of the operon thereby physically preventing the attachment of the RNA polymerase to make the mRNA template of the protein. There is a physical relationship in a three-dimensional linear arrangement between the DNA of the operon, the normal closely applied histone molecule
(generally less than 10,000 Daltons MW) about the DNA double helix, and the allogenetic repressor protein, typically 19,000 to 40,000 Daltons MW, sitting astride the DNA
operator site, with its molecular structure displacing the histone from the area of the minor groove. From Rauka's model in 1966, and in agreement with Inoue and Ando's 1969 model of nucleoprotamine structure, the protamine, like histone, may occupy the minor groove of the DNA double helix, but also affect the binding sites of the major groove of Wilkin's 1956 model by charge cloud or physical interaction. Ando, T., Yamasaki, M., Suzuki, K., Protamines, Isolation, Characterization, Structure and Function.
Molecular Biology, Biochemistry and Biophysics, V. 12, p. 81-84 (1973); and, Li, Hsueh Jei, Chromatin and Chromosome Subunits, pp. 159-161 (Academic Press, New York, 1977).
There is no excess histone in the free state in cells, due to highly toxic effects from the positive charge.
Protamine, like histone, is a structural protein, but evolutionarily a protein of embryonic origin with nearly twice (KB = 15.0 M-1) the DNA binding coefficient of histone IV (KR = 7.5 M-1) at near physiological saline (0.154M aqueous NaCl). See, Table 1. Protamine represents an early, evolutionary solution to the onslaught of allogenetic false inducers and false repressors.
Figure imgf000010_0001
After administered protamine-DNA complexes arrive in the repressed cell, there is a relative abundance of protamine, as compared with functional cellular DNA. Watters, C., Gullino, P., "Translocation of DNA from Vascular into the Nuclear compartment of Solid Mummary Tumors," Cancer
Research 31, 1231-1243 (Sept. 1971). The DNA in the adult cells is only protected by histones. The affinity of protamine for the DNA is, evolutionarily, greater than that of histone. The protamine dissociates from the allogenetic DNA and attaches to the open minor groove, due to its high binding affinity, replacing the lost histone and weakening the attachment of the allogenetic repressor. The
allogenetic repressor is then displaced. DNAases in the cytoplasm attack the exposed allogenetic DNA, left
instantaneously vacant by a protamine molecule in
equilibrium, with the cell's DNA at the minor groove. The expelled allogenetic repressor is destroyed by circulating protease, or at least diffuses away from the major groove. Finally, the protamine is randomly, and slowly, replicated by histones. The cell's own repressors may now control the operator region, and transcription of DNA again. The cell returns to a normal genetic when a sufficient amount of allogenetic repressors are displaced to stop further
uncontrolled transcription of unwanted proteins.
Displacement of allogenetic repressor by protamine interaction on the minor groove leads to normal translation of major groove base pairs.
The actual substitution of protamine follows a simple competitive inhibition model where the success of replacing the foreign repressor protein is directly proportional to a high protamine-DNA/foreign repressor ratio. The reaction is also influenced by the destruction of the allogenetic DNA of the original protamine-DNA complex, stopping the return of the protamine molecule to the allogenetic donor from the cell's heterogenetic DNA, thus making the reaction
irreversible.
Disclosure of Invention
It is, therefore, an object of the present invention to provide an improved process for the production of high purity nucleoprotamine-DNA complex substances.
It is yet a further object of the invention to provide a process for the use of nucleoprotamine-DNA complex compounds as anti-tumor or anti-viral agents. The foregoing and related objects are accomplished by a process in which high purity protamine-DNA complexes are prepared by collecting nucleoprotamines specific developmental stages of a life form, specifically, fertilized amphibian, egg by low temperature processing. The process also includes the steps of sequential homogenization in a high concentration aqueous salt solution and a citric acid buffer, at a low pH of approximately 2.2, followed by ultracentrifugation to remove insoluble matter. These steps are then followed by an aqueous chloroform extraction to isolate protein and to remove lipids and lyophilization. Single pass alumina chromatography is then used to separate each active protamine and protamine-like basic fraction. Dialysis against pure water removes excess salt, and
lyophilization increases concentration of each separated protamine and protamine-like protein. Each isolate may the be reconstituted with 5% weight/volume heterologous or homologous DNA, in order to shield from charge toxicity. Sterile filtration produces injection quality physiologic aqueous form. Optionally, a precipitation in sterile pure water, followed by lyophilization to remove water and to produce a solid form of the protamine-DNA complex obtained, is also recommended for dry preservation.
Following isolation of the protamine-DNA complex, encapsulation of the prepared solid or aqueous protamine-DN complexes, in a specific carrier substance, may be
accomplished, depending upon the target tissue for the protamine. Several encapsulation carriers are known from prior art literature, such as, for example, liposomes and nanoparticles.
It is another object of the present invention to provid a method of treating human tumors, in accordance with which an effective tumor treatment amount of the nucleoprotamine- DNA complex compound produces as specified hereinabove is administered to a human. It is also a further feature of the present invention to provide a method of treating a human having Acquired Immuno Deficiency Syndrome, in
accordance with which an effective Acquired Immuno
Deficiency Syndrome treatment amount of the nucleo- protamine-DNA complex compound produced in accordance with the present invention as described hereinabove, is
administered to a human.
Best Mode for Carrying Out the Invention
Turning now, in detail, to a consideration of the preferred embodiments of the present invention, each
developmentally-timed nucleoprotamine has a utility for inhibiting tumor cell growth; inhibiting viral reproduction; and, regulating mammalian cellular metabolism by directly influencing DNA transcription at the macromolecular level - a phenomenon that may delay, or even reverse, the observed physiological changes we associate or attribute to aging.
More particularly, the present invention concerns a process that allows for the maximum extraction of
nucleoprotamine from any fertilized egg source with the protamine being extracted at the proper time during
embryonic development.
In research thus far conducted, fertilized amphibian eggs from the common grass frog Rana pipiens, were used. In the following example of the invention, all steps were carried out with an aseptic technique at 4° C., unless otherwise noted.
At a proper time, known to those skilled in the art, artificially inseminated live incubating eggs were harvested whole from oxygenated 67° F-shallow laminar flow, 5% weight/ volume DeBoer's bath and are identified in the proper stage of development. Eggs in early to mid-gastrula states, as depicted by Witschi stages 8 and 9 (Witschi, Emil,
Development of the Vertibrates, W. B. Saunders Company, New York 1956) have been quite satisfactory, however, other stages may be equally suitable. The eggs are then snap frozen with liquid nitrogen to halt development, and placed at -40°C for long-term storage.
Anytime thereafter, though preferably within a few weeks, the eggs may be defrosted at room temperature and mixed with an equal volume of 4 M aqueous NaCl solution buffered to pH 2.2 with 1/10 volume 0.1 M sodium citrate.
Tissue homogenation was accomplished with a Brinkman Polytron homogenizer set on #6, as understood in the art, for 4 to 5 minutes until all the eggs are finely ground into a thick gray emulsion. This thick emulsion is ultra- centrifuged at 15,000+ g's for 15 minutes in a refrigerated centrifuge. The cloudy, gray supernate is then easily poured off the brown and black granular sediment. This supernate contains the cytoplasm, without organelles, and nucleoplasm, with unbound nucleoprotamine released from its close relationship with DNA by the high concentration of salt and acidic pH. Serum protein electrophoresis, at this stage, further shows a crude, but relatively pure Beta electrophoretic range protein peak, i.e., the crude,
protamine-DNA (CPDNA).
Further processing includes chloroform extraction of protein. This requires the addition of 0.1 g of Na2CO3 per 20 cc of supernate, stirred incubation at 50° C. for 30 minutes at an adjusted pH of 7 with glacial acetic acid, and the addition of an equal volume of chloroform with 0.1 volume amyl alcohol. The mixture is then shaken for 10 minutes and centrifuged to separation at 2,000 g. The topmost pure aqueous layer of the resultant three-layer liquid is discarded. The middle layer, being of chloroform- alcohol-protein is removed from the lower layer of
chloroform waste, and saved. This middle layer is then lyophilized at 0.001 torr and -40°C to remove the volatile chloroform. The fluffy precipitate is the purified
protamines, identified by basic Isoelectric Focusing (IEF), with a pI of approximately 9.50. Further purification involves separating the purified protamines and protamine- like proteins into discrete fractions by alumina
chromatography. The column was loaded with 0.4 cc of 2 mg/cc purified protamine mixture, and developed with 0.45 M aqueous K2HPO4 at a flow rate of 0.25 cc/min. Pierce
Chemical Company BCA Protein Reagent was used to identify the protein concentration at 562 nm visible light spectrum on a DU-7 spectrophotometer. Albumin protein standards were used for calibration. Each fraction of protamine may be precipitated with DNA upon dialysis against pure water.
Due to the strong positive charge of the protamine base, a minimum of 5 mol% of DNA must be added back to the mixture to cover the strong positive charge of the free base, which is quite toxic, in and of itself, to test animals.
The salt content in the foregoing procedure, can be reduced to 0.09% (physiologic) saline by dialysis against pure water. Addition of DNA at approximately 5.0 mol percent causes microprecipitation during dialysis. This results in reconstitution of protamine-DNA via micro- precipitation of the free base protamine with the available 1:1 mole ration DNA and reduced toxicity. Final
bacteriologic microfiltration with 0.22 micron USP stainless approved equipment is necessary for human injection quality extract, which is also suitable for various forms of
encapsulation.
The DNA used in reconstitution may be of heterogenetic or homogenetic origin, i.e., from the protamine donor tissue or the target tissue. This reconstituted protamine-DNA complex (RPDNA) can then be encapsulated and directed more specifically to target tissues.
The crude protamine-DNA (CPDNA) may be precipitated to form wispy white tendrils in sterile double distilled water. This precipitate is easily separated by repeated centrifugation at 15,000 g's and decanting off the
supernate. The wet precipitate can be crystalized in a lyophilizer at 0.001 torr and -40° C. until reduced to an amorphous light brown sticky material, with the consistency of coarse cotton candy.
This solid is readily weighed and packed in gelatin capsules for oral use, as the low molecular weight
protamine-DNA complex is readily absorbed across the
mammalian gut in non-specific administration protocols. The properties of this solid phase are essentially the same as the purified material, except for the higher percentage of donor tissue DNA.
The invention will now be further described by means of an additional testing procedure and data. It should, of course, be recognized that the following is merely
illustrative of the invention and is not intended to define the limits thereof.
In the following testing protocol, testing data is presented as tumor size, calculated volume and growth curves during in vivo testing against B16F10 murine melanoma in C57BL6 mice, modeled after the National Cancer Center
Protocols, for limited cohort group testing.
In this protocol, 20 - 25-gram four-week old C57BL6 mice were implanted with 1 x 106 B16F10 murine melanoma, pass 35, tumor cells from cell culture stocks, by injection into the muscle mass of the right thigh on Day 0. Treatment was begun on Day 1, by intraperitoneal injection of CPDNA daily, except on noted days when treatment was withheld due to dose related toxicity. Additionally, intratumor injections of CPDNA were administered, adjunctively, on noted days.
Controls received only similar intratumor injections with normal saline on like days and no intraperitoneal injections. Tumors were measured with calipers on a daily basis and volumes were calculated for an average radius from two dimensional diameter measurements according to the following formula:
V = [(d1 + d2)/4]2 pI The volume of a given mouse's leg on Day 0 was
subtracted from the calculated total volume of the tumor to give the net tumor volume (NTV). (See, Tables 2, 3 and 4).
As noted from the results presented in the accompanying Tables, the test group, as opposed to the control group, generally had a smaller amount of net tumor volume.
The product produced in accordance with the present invention as described hereinabove can be used to treat humans afflicted with cancers. The product is generally administered in the form of a mixture of aqueous fractions, or can be given as the precipitated protamine and DNA complex, in a powder type form.
The treatment of cancer was confirmed by a patient who had the condition known as adenocarcinoma of the prostate. After the treatment remission of the condition of
adenocarcinoma of the prostate was obtained, documented by reduction in Prostate Specific Antigen and clinical
resolution of nocturia, incontinence, and bone pain from metastatic disease were achieved as well. The patient was a 58 year old male with biopsy positive adenocarcinoma of prostate, refused all other medical modalities, began dosing on September 23, 1992, initially at 2 grams per day for one week, then 1 gram per day for 1 week, then 1 gram per day for 2 weeks, then back to 2 gram per day, continuously as shown in Table 5, and Diagram 6.
However, prepared, the product disperses into a family of active polypeptides, small enough to be absorbed across a variety of cell membranes, including the gut, liver, and vascular channels. The family of polypeptides is
transported to the nucleus of cells, identified by cellular transport systems by their charge and configurations. Thus, the family of polypeptides gains access to the host cell DNA, and can strip away false repressors and inducers of tumor origin that are disrupting the normal expression of phenotype by the cancerous cell. Once cancerous cells again
Figure imgf000018_0001
Figure imgf000019_0002
KEY TO TABLE
IP indicates intraperitoneal injection route
IT indicates intratumor injection route
indicates a satellite mass arising next to implant site
Figure imgf000019_0001
indicates animal died in seconds due to accidental intrarterial injection
-D- indicates animal found dead in cage
Figure imgf000020_0001
Figure imgf000021_0001
+ indicates a .satellite that is later engulfed during tumor expansion
-D- indicates animal found dead in cage
Figure imgf000022_0001
express normal phenotype, this puts the cell into remission, causing the spread of the cancer to cease, and the overall body load of cancer cells to decrease. Such arresting of the metastatic cell lifecycle can induce remission in the patient. TABLE 5
PSA vs Time and Cumulative Dose
58 year old male with Prostate Cancer, refused classic therapies.
Dosing starts at 2 gm per day on September 23, 1992.
Figure imgf000023_0002
Diagram 6
PSA vs Time and DOSI
Doses Start Week 17, squares are cumulative gms
600.00
480.00
P S
A 360.00
i
n
240.00
n
g
m 120.00
l
0.00
Figure imgf000023_0001
0.00 4.00 8.00 12.00 16.00 20.00 24.00 28.00 32.00 The methods of administering the product are disclosed as another feature of the invention. The effective dose is in the range of 13 to 26 mg per kilogram body weight of recipient per day. In clinical trials, oral doses were given in this range once a day.
Administration may be by some suitable route including oral, rectal, nasal, topical (including buccal and
sublingual), vaginal and parenteral (including subcutaneous, intradermal, intramuscular and intravenous). A typical once daily oral dose might consist of eight ounces of liquid carrier, such as water, with 1,000 to 2,000 mg of product dissolved in it.
The product might be administered in conjunction with other known medications such as Leuprolide, Buserelin, Goserelin, Narfarelin, Flutamide, Finasteride, Parazosin, Terazosin, Testolactone, Atamestane, or in conjunction with surgical modalities such as orchiectomy, or local radiation therapy.
The various formulations of the product may be prepared for use by any methods well known in the art of pharmacy.
Such formulations would generally include an acceptable carrier, in terms of being compatible with the polypeptide ingredients. The formulations may not be limited to those suitable for oral, rectal, nasal, topical (including buccal and sublingual), vaginal or parenteral (including
subcutaneous, intradermal, intramuscular and intravenous) administration.
The formulations may be presented in unit dose form for any route. Oral formulations are not limited to pressed or molded tablet, capsules or caplets, aqueous solution, sustained release capsules, emulsified slurry, oral troche or lozenge, pastilles, mouthwashes, nanoparticles, or liposomes, all containing a predetermined amount of the polypeptide family constituents. The proportions of each polypeptide may vary, depending upon the desired effect on the host tumor and experience of the administrator.
Formulations for topical administration may be made by mixing an appropriate carrier into ointments, creams, jels, or pastes. Transderm patches may be made with current release technology.
Formulations for rectal administration may include suppository, and retention oil or liquid, and foam carriers.
Formulations for vaginal use include pessaries, tampons, creams, gels, pastes, foams, or sprays, all of the
appropriate carriers well known in the industry.
Formulations for nasal administration include powdered precipitated polypeptides suitable for nasal inhalation, or gels, drops, sprays, packings, all of a compatible carrier. Formulations for parenteral administration include sterile aqueous and non-aqueous injection solutions which may include antioxidants, buffers, bacteriostats, or
preservatives, to render the mixture isotonic with the recipients blood. The formulations may be presented in unit dose or multidose containers, such as sealed vials, or ampules. Lyophilized preparations may require
reconstitution with an appropriate aqueous, oily, or
anesthetic diluent to proper concentration and consistency.
It should be understood that the above formulations may include other agents or apparatus conventional in the art of the formulation in question, for example a nasal inhalator or transdermal patch dispersal system.
In accordance with a further feature of the present invention, the nucleoprotamine-DNA complex compound produced in accordance with the present invention as described hereinabove is used treating a human Acquired Immuno
Deficiency Syndrome. When the new product was used for treatment of AIDS, it reduced the P-24 antigen and Beta 2 Microglobulins, all markets of HIV viral activity; reduced or slowed the loss of Human T lymphocytes from patients with Acquired Autoimmune Deficiency Syndrome (AIDS), and increased the T Helper (CD4) to T Suppressor (CD8) Ratio; reversed the weight loss of the wasting syndrome associated with AIDS; contributed to the sense of well-being of AIDS patients, by increasing energy levels, and reduced common complaints of fatigue, muscle aches, neuritis, and
confusion, or dementia; reduced the size of Kaposi's Sarcoma lesions in some AIDS patients.
This is evidenced by the accompanying data shown in Table 7, Diagrams 8 - 11, and two Summaries. The product produced in accordance with the present invention as
specified hereinabove and used to treat humans infected with the HIV viruses and their mutants, is generally administered in the form of a mixture of aqueous fractions, or can be given as the precipitated protamine and DNA complex, in a powder type form.
However prepared, the product disperses into a family of active polypeptides, small enough to be absorbed across a variety of cell membranes, including the gut, liver, and vascular channels. The family of polypeptides is
transported to the nucleus of cells, identified by cellular transport systems by their charge and configurations. Thus, the family of polypeptides gains access to the host cell DNA, and can strip away false repressors and inducers of HIV origin that are disrupting the normal expression of
phenotype by the infected cell. Once infected cells again express normal phenotype, this disrupts the lifecycle of the HIV virus, causing the infection of cells to cease, and the overall body load of HIV infected cells to decrease. Such arresting of the virus lifecycle can induce remission in HIV infected patients, patients with AIDS, or AIDS related complex (ARC).
The methods of administering the product are disclosed as another feature of the invention. The effective dose is in the range of 1 to 15 m g per kilogram body weight of recipient per day. In clinical trials, oral doses were given in this range once a day, and mouse data indicated a half life of 24 to 48 hours.
Administration may be by some suitable route including oral, rectal, nasal, topical (including buccal and
sublingual), vaginal and parenteral (including subcutaneous, intradermal, intramuscular, and intravenous). A typical once daily oral dose might consist of eight ounces of liquid carrier, such as water, with 70 to 1,000 mg of product dissolved in it.
The product might be administered in conjunction with other known medications such as acyclovir, AZT, DDI, DDC, interferon, or other immunomodifiers or immunostimulants .
The various formulations of the product may be prepared for use by any methods well known in the art of pharmacy. Such formulations would generally include an acceptable carrier, in terms of being compatible with the polypeptide ingredients. The formulations may not be limited to those suitable for oral, rectal, nasal, topical (including buccal and sublingual), vaginal or parenteral (including
subcutaneous, intradermal, intramuscular, and intravenous) administration.
The formulations may be presented in unit dose form for any route. Oral formulations are not limited to pressed or molded tablet, capsules, or caplets, aqueous solution, sustained release capsules, emulsified slurry, oral troche or lozenge, pastilles, mouthwashes, nanoparticles, or liposomes, all containing a predetermined amount of the polypeptide family constituents. The proportions of each polypeptide may vary, depending upon the desired effect of the host DNA, and experience of the administrator.
Formulations for topical administration may be made by mixing an appropriate carrier into ointments, creams, jels, or pastes. Transderm patches may be made with current release technology.
Formulations for rectal administration may include suppository, and retention oil or liquid, and foam carriers. Formulations for vaginal use include pessaries, tampons, creams, gels, pastes, foams, or sprays, all of the
appropriate carriers well known in the industry.
Formulations for nasal administration include powdered precipitated polypeptides suitable for nasal inhalation, or gels, drops, sprays, packings, all of a compatible carrier. Formulations for parenteral administration include sterile aqueous and non-aqueous injection solutions which may include antioxidants, buffers, bacteriostats, or
preservatives, to render the mixture isotonic with the recipients blood. The formulations may be presented in unit dose or multidose containers, such as sealed vials, or ampules. Lyophilized preparations may require
reconstitution with an appropriate aqueous, oily, or
anesthetic diluent to proper concentration and consistency.
It should be understood that the above formulations may include other agents or apparatus conventional in the art of the formulation in question, for example a nasal inhalator or transdermal patch dispersal system.
SUMMARY 1
From December 31, 1989 through January 9, 1990, Patient 1 underwent twice daily oral dosing of 500 mg suspension. Baseline weight increased from 149 pounds to 152 pounds, and hair growth was documented from day 1 to day 10 at 2 to 3 millimeters in previously balding areas. By January 27, three weeks after stopping therapy, Patient l's weight had increased to 164 pounds, up fifteen pounds from the
beginning of therapy. His activity levels had tripled, and he resumed chores around the house.
From June 16th, 1991 through September 22nd, 1991, the same Patient was maintained on a similar 500 mg twice daily regimen. Although his weight fluctuated between 150 and 158 pounds, there was no trend established. His activity increased to yard work, and manual labor. No side effects were documented.
SUMMARY 2
From December 31st, 1989 through January 9th, 1990, Patient 2 also took the same oral regimen. He experienced a twelve percent reduction in the surface area of Kaposi's Sarcoma lesions in ten days.
From July 4th, 1991 through September 14th, 1991,
Patient 2 also again took the same oral regimen. He experienced a two percent reduction in the surface area of Kaposi's Sarcoma lesions. No side effects were documented.
TABLE 7
Response of AIDS Patients to Dose Therapy
Beta2 = Beta 2 Microglobulins, mg/L CD4/CD8 = CD4/CD8 Ratio
P24 = P24 Antigen, pg/ml
Figure imgf000029_0001
Diagram 7
Patient 1, Beta2 vs Time
4.00
3.20
m
g 2.40
/
L
1.60
0.80
0.00
Figure imgf000030_0001
0.00 6.8 12.0
Time in Weeks
Diagram 8
Patient 1, CD4/CD8 ratio vs Time
0.10
0.08
R
a 0.06
t
i
o 0.04
0.02
0.00
Figure imgf000030_0002
0.00 2.4 4.8 7.2 9.6 12.0
Time in Weeks Diagram 9
Patient 2, Beta2 vs Time
7.00
6.00
m
g 5.00
/
L
4.00
3.00
2.00
0.00 2.8 5.6 8.4 11.2 14.0
Time in Weeks
Diagram 10
Patient 2, CD4/CD8 ratio vs Time
0.50
R
a
t
i
o
Figure imgf000031_0002
0.00 7.9 14.0
Time in Weeks Diagram 11
Patient 2, P24 vs Time
180.00
144.00
P
g 108.00
/
m
l 72.00
36.00
0.00
Figure imgf000032_0001
0.00 2.8 5.6 8.4 11.2 14.0
Time in Weeks

Claims

Claims
1. A process for providing a high-purity protamine-DNA
complex, consisting essentially of the sequential steps of:
collecting and treating a nucleprotamine from a developmental stage of a life form by homogenization in an aqueous buffered salt solution at a pH of
approximately 2.2 to obtain a mixture;
removing insoluble matter from the mixture of said collecting and treating step;
isolating protein from the mixture by a first aqueous chloroform extraction;
removing lipids from the isolated protein by a second chloroform aqueous extraction.
performing dialysis of the protein obtained by the second extraction against sterile water, to remove excess salt;
reconstituting the dialyzed protein with 5% weight/volume heterologous or 5% weight/volume
homologous DNA; and
sterile filtration to obtain an aqueous protamine-DNA complex.
2. The process according to claim 1, further consisting
essentially of the step of separating of discrete protein peaks by chromatography.
3. The process according to claim 1, wherein said
developmental stage of said life form is fertilized egg.
4. The process according to claim 1, wherein said removing of insoluble water from said mixture occurs by
ultracentrifugation.
5. The process according to claim 1, further consisting essentially of the step of encapsulating said aqueous protamine-DNA complex in a carrier substance.
6. The process according to claim 1, further consisting
essentially of the steps of:
precipitating said aqueous protamine-DNA complex in water; and
lyophilizing to remove said water and to produce a solid form of the protamine-DNA complex.
7. The process according to claim 6, further consisting
essentially of the step of encapsulating said solid protamine-DNA complex in a carrier substance.
8. The process for providing a high purity protamine-DNA complex, consisting essentially of the sequential steps of:
collecting and treating a nucleoprotamine from any developmental stage of a life form by homogenization in a buffered aqueous 4M salt solution at a pH of
approximately 2.2 to obtain a mixture;
removing insoluble matter from the mixture of said collecting and treating step;
isolating protein from the mixture by a first aqueous chloroform extraction;
removing lipids from the isolated protein by a second aqueous chloroform extraction;
reconstituting the protein obtained by the second extraction with heterogenous DNA of a target tissue; performing dialysis of the reconstituted protein, against sterile water, to remove excess salt; and,
sterile filtration to obtain an aqueous protamine-DNA complex.
9. The process according to claim 8, further consisting essentially of the step of separating of discrete protein peaks by chromatography.
10. The process according to claim 9, wherein said
chromatography is alumina and is developed by an aqueous K2HPO4 buffer.
11. The process according to claim 8, wherein said
developmental stage of said life form is egg.
12. The process according to claim 8, wherein said salt
solution is sodium chloride and said buffer is sodium citrate.
13. The process according to claim 8, wherein said removing of insoluble matter from said mixture occurs by ultra- centrifugation.
14. The process according to claim 8, further consisting
essentially of the step of encapsulating said aqueous protamine-DNA complex in a carrier substance.
15. The process according to claim 8, further consisting
essentially of the steps of:
precipitating said aqueous protamine-DNA complex in water; and,
lyophilizing to remove said water and to produce a solid form of the protamine-DNA complex.
16. The process according to claim 15, further consisting essentially of the step of encapsulating said solid protamine-DNA complex in a carrier substance.
17. A process for providing a high-purity protamine-DNA complex, consisting essentially of the sequential steps of:
collecting and treating a nucleoprotamine from a developmental stage of a life form by homogenization in an aqueous buffered salt solution to obtain a mixture;
removing insoluble matter from the mixture of sai collecting and treating step;
isolating protein and removing lipids from the mixture by a single aqueous chloroform extraction;
performing dialysis of the protein obtained by th single extraction, against sterile water, to remove excess salt; and,
reconstituting the dialyzed protein with 5% weight/volume heterologous or homologous DNA; and
sterile filtration to obtain an aqueous protamine-DNA complex.
18. The process according to claim 17, further consisting essentially of the step of separating of discrete protein peaks by chromatography.
19. The process according to claim 17, wherein said
developmental stage of said life form is fertilized egg.
20. The process according to claim 17, wherein said removin of insoluble matter from said mixture occurs by ultra- centrifugation.
21. The process according to claim 17, further consisting essentially of the step of encapsulating said aqueous protamine-DNA complex in a carrier substance.
22. The process according to claim 17, further consisting essentially of the steps of:
precipitating said aqueous protamine-DNA complex in water; and,
lyophilizing to remove said water and to produce a solid form of the protamine-DNA complex.
23. The process according to claim 22, further consisting essentially of the step of encapsulating said solid protamine-DNA complex in a carrier substance.
24. A process for providing a high-purity protamine-DNA
complex, consisting essentially of the sequential steps of:
collecting and treating a nucleoprotamine from any developmental stage of a life form by homogenization in a buffered aqueous salt solution to obtain a mixture; removing insoluble matter from the mixture of said collecting and treating step;
isolating protein and removing lipids from the mixture by a single aqueous chloroform extraction;
reconstituting the protein obtained by the single extraction with heterogenous DNA of a target tissue; performing dialysis of said mixture, against distilled water, to remove excess salt; and
sterile filtration to obtain an aqueous protamine-DNA complex.
25. The process according to claim 24, further consisting essentially of the step of separating of discrete protein peaks by chromatography.
26. The process according to claim 25, wherein said
chromatography is alumina and is developed by an aqueous
K2HPO4 buffer.
27. The process according to claim 24, wherein said
developmental stage of said life form is egg.
28. The process according to claim 24, wherein said salt solution is sodium chloride and said buffer is citric acid.
29. The process according to claim 24, wherein said removing of insoluble matter from said mixture occurs by ultra- centrifugation.
30. The process according to claim 24, further consisting essentially of the step of encapsulating said aqueous protamine-DNA complex in a carrier substance.
31. A high-purity protamine-DNA complex, produced by a
process consisting essentially of the sequential steps of collecting and treating a nucleoprotamine from a development stage of a life form by homogenization in an aqueous buffered salt solution to obtain a mixture, removing insoluble matter from the mixture of said collecting and treating steps, isolating protein and removing lipids from the mixture by an aqueous
chloroform extraction, performing dialysis of the protein against sterile water, to remove excess salt, reconstituting the protein with heterogenous DNA of a target tissue, and sterile filtration to obtain an aqueous protamine-DNA complex.
32. A method of treating a human having tumor comprising the administration of an effective tumor treatment amount of the product as defined in claim 31 to said human.
33. A method as defined in claim 32, in which a mixture of aqueous fractions of the product is administered.
34. A method as defined in claim 32, in which a powder of precipitated protamine and DNA complex of the product is administered.
35. The method as defined in claim 32, in which the product is administered by one of oral rectal, nasal, topical, vaginal and parenteral administration.
36. The method as defined in claim 32, in which the product is administered in form of one of a tablet, capsule, caplet, aqueous solution, sustained release capsule, emulsified slurry, oral troche, pastille, mouthwash, nanoparticle and liposome.
37. A method of treating a human having Acquired Immuno
Deficiency Syndrome, comprising the administration of an effective immuno deficiency syndrome treatment amount of the product defined in claim 31 to said human.
38. A method as defined in claim 37, in which a mixture of aqueous fractions of the product is administered.
39. A method as defined in claim 37, in which a powder
of precipitated protamine and DNA complex of the
product is administered.
40. The method as defined in claim 37, in which the
product is administered by one of oral rectal, nasal, topical, vaginal and parenteral administration.
41. The method as defined in claim 37, in which the product is administered in form of one of a tablet, capsule, caplet, aqueous solution, sustained release capsule, emulsified slurry, oral troche, pastille, mouthwash, nanoparticle and liposome.
PCT/US1993/001542 1993-02-16 1993-02-16 High purity protamine-dna complex and use of same Ceased WO1994018947A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1822493A 1993-02-16 1993-02-16
US08/018,224 1993-02-16

Publications (1)

Publication Number Publication Date
WO1994018947A1 true WO1994018947A1 (en) 1994-09-01

Family

ID=21786871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/001542 Ceased WO1994018947A1 (en) 1993-02-16 1993-02-16 High purity protamine-dna complex and use of same

Country Status (1)

Country Link
WO (1) WO1994018947A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997004748A3 (en) * 1995-08-01 1997-05-29 Advanced Therapies Inc Enhanced artificial viral envelopes for cellular delivery of therapeutic substances
WO2004098630A1 (en) * 2003-05-12 2004-11-18 Nissan Chemical Industries, Ltd. Menopausal disorder inhibitor
WO2005112894A1 (en) * 2004-05-12 2005-12-01 Baxter International Inc. Nucleic acid microspheres, production and delivery thereof
WO2005112885A2 (en) 2004-05-12 2005-12-01 Baxter International Inc. Oligonucleotide-containing microspheres, their use for the manufacture of a medicament for treating diabetes type 1
US7374782B2 (en) 2000-10-27 2008-05-20 Baxter International Inc. Production of microspheres
CN113546056A (en) * 2021-07-01 2021-10-26 温州医科大学附属第二医院(温州医科大学附属育英儿童医院) Preparation method and application of bionic nano protective agent for adriamycin heart and system toxicity detoxification
CN113577039A (en) * 2021-07-01 2021-11-02 温州医科大学附属第二医院(温州医科大学附属育英儿童医院) Application of nano-particles formed by encapsulating protamine with erythrocyte membrane after compressing DNA and preparation method thereof

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
BIOCHIMICA ET BIOPHYSICA ACTA, Volume 707, issued 1982, T. TOBITA et al., "Isolation and Characterization of Nuclear Basic Protein (Protamine) from Boar Spermatoza", pages 252-258. *
EUROPEAN JOURNAL OF BIOCHEMISTRY, Volume 75, issued 1977, A.D. MIRZABEKOV et al., "Protein Arrangement in the DNA Grooves in Chromatin and Nucleoprotamine In Vitro and In Vivo Revealed by Methylation", pages 379-389. *
JOURNAL OF MEDICAL VIROLOGY, Volume 22, issued 1987, E. BIZIAGOS et al., "Effect of Antiviral Substances on Hepatitis A Virus Replication In Vitro", pages 57-66. *
NATURE, Volume 297, issued 27 May 1982, S. TAYLOR et al., "Protamine is an Inhibitor of Angiogenesis", pages 307-312. *
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES (U.S.A.), Volume 84, issued November 1987, P.L. FELGNER et al., "Lipofection: A Highly Efficient, Lipid-Mediated DNA-Transfection Procedure", pages 7413-7417. *
PROCEEDINGS OF THE SOCIETY OF EXPERIMENTAL BIOLOGY AND MEDICINE, Volume 128, issued 1968, S. NOMURA et al., "Interaction of Respiratory Syncytial Virus with Polyions: Enhancement of Infectivity with Diethylaminoethyl Dextran", pages 163-166. *
R.K. SCOPES, "Protein Purification", published 1987, by SPRINGER-VERLAG (NEW YORK), page 252. *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997004748A3 (en) * 1995-08-01 1997-05-29 Advanced Therapies Inc Enhanced artificial viral envelopes for cellular delivery of therapeutic substances
US7374782B2 (en) 2000-10-27 2008-05-20 Baxter International Inc. Production of microspheres
WO2004098630A1 (en) * 2003-05-12 2004-11-18 Nissan Chemical Industries, Ltd. Menopausal disorder inhibitor
EP2335689A1 (en) * 2004-05-12 2011-06-22 Baxter International Inc. Method of manufacturing nucleic acid micropheres
WO2005112885A3 (en) * 2004-05-12 2006-02-09 Baxter Int Oligonucleotide-containing microspheres, their use for the manufacture of a medicament for treating diabetes type 1
WO2005112885A2 (en) 2004-05-12 2005-12-01 Baxter International Inc. Oligonucleotide-containing microspheres, their use for the manufacture of a medicament for treating diabetes type 1
EP2072040A1 (en) * 2004-05-12 2009-06-24 Baxter International Inc. Therapeutic use of nucleic acid micropheres
AU2005244842B2 (en) * 2004-05-12 2010-09-23 Baxter Healthcare S.A. Nucleic acid microspheres, production and delivery thereof
WO2005112894A1 (en) * 2004-05-12 2005-12-01 Baxter International Inc. Nucleic acid microspheres, production and delivery thereof
US9115357B2 (en) 2004-05-12 2015-08-25 Baxter International Inc. Delivery of AS-oligonucleotide microspheres to induce dendritic cell tolerance for the treatment of autoimmune type 1 diabetes
US9339465B2 (en) 2004-05-12 2016-05-17 Baxter International, Inc. Nucleic acid microspheres, production and delivery thereof
CN113546056A (en) * 2021-07-01 2021-10-26 温州医科大学附属第二医院(温州医科大学附属育英儿童医院) Preparation method and application of bionic nano protective agent for adriamycin heart and system toxicity detoxification
CN113577039A (en) * 2021-07-01 2021-11-02 温州医科大学附属第二医院(温州医科大学附属育英儿童医院) Application of nano-particles formed by encapsulating protamine with erythrocyte membrane after compressing DNA and preparation method thereof
CN113546056B (en) * 2021-07-01 2022-09-13 温州医科大学附属第二医院(温州医科大学附属育英儿童医院) Preparation method and application of biomimetic nano-protective agent for detoxification of cardiac and systemic toxicity of doxorubicin
WO2023274105A1 (en) * 2021-07-01 2023-01-05 温州医科大学附属第二医院(温州医科大学附属育英儿童医院) Preparation method for and application of biomimetic nano-protective agent for counteracting cardiotoxicity and systemic toxicity of doxorubicin
US12102690B2 (en) 2021-07-01 2024-10-01 The Second Affiliated Hospital Of Wenzhou Medical University Preparation method and application of biomimetic nano-protectant for detoxifying dox-induced cardiac and systemic toxicity

Similar Documents

Publication Publication Date Title
KR100378787B1 (en) Shark cartilage extract and anti-angiogenic activity and tumor degeneration effect
JP2813017B2 (en) How to reduce side effects of cancer therapy
WO2005004903A1 (en) Method for treating oncological diseases
EP0392315A1 (en) Pure Histone H1 for use in therapeutic procedures
JPH10506628A (en) Immunotherapy stress protein-peptide complex for cancer
HU227944B1 (en) Vaccines containing a saponin and a sterol
EA018461B1 (en) Methods and compositions for oral administration of protein and peptide therapeutic agents
EP1066050B1 (en) Application of hsp70 proteins
US5948404A (en) Healthful composition obtained from the hot water extract of Coratceps sinensis mycelia
US5187260A (en) Process for the preparation of a high purity protamine-DNA complex and process for use of same
RU2041717C1 (en) Biologically active remedy, method for its producing, preparation containing the mentioned remedy and its application method
CN101020715B (en) Process of extracting and preparing deer nerve growth factor (DEER NGF)
DE69830900T2 (en) IMMUNOLOGICAL TOLERANCE INDUCTIVE COMPOSITIONS CONTAINING ANTIGEN AND MUCOSEPHYING COMPONENT
WO1994018947A1 (en) High purity protamine-dna complex and use of same
DE69720065T2 (en) THERAPEUTIC APPLICATIONS OF ANTIGENS OR EPITOPES ASSOCIATED WITH INcomplete CELLULAR PEPTIDE PROCESSING, E.g .: EXPRESSED IN RMA-S CELLS TRANSFECTED WITH B7-1 GEN
DE69838324T2 (en) PH SENSITIVE LIPOSOMES AND OTHER TYPES OF IMMUNOMODULATORS OF CONTAINED VACCINES AND METHOD AND METHOD OF PREPARATION THEREOF
US4193992A (en) Process for the preparation of defibrinated and lyophilized placental cells
JPH10511974A (en) New applications of lysozyme dimer
RU2041715C1 (en) Biologically active remedy, method for its producing, preparation containing the mentioned remedy and method for applying the preparation
Marshall et al. Effects of coumarin (1, 2-benzopyrone) and cimetidine on peripheral blood lymphocytes, natural killer cells, and monocytes in patients with advanced malignancies
DE69428984T2 (en) STIMULATING THE IMMUNE RESPONSE BY VIRAL PROTEIN
Tabrah et al. Antitumor activity in mice of tentacles of two tropical sea annelids
JPH09315991A (en) Cell adhesion inhibitor
CN101289653A (en) Nicotine-treated dendritic cells for tumor prevention and treatment
RU2190421C1 (en) Preparation for protecting body against negative environmental factors

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR JP RU

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase