WO1996010423A1 - COMPOSITIONS CONTAINING A p53 DERIVED PROTEIN OR PEPTIDE, AN ADJUVANT, AND INTERLEUKIN-12 AND USES THEREOF - Google Patents
COMPOSITIONS CONTAINING A p53 DERIVED PROTEIN OR PEPTIDE, AN ADJUVANT, AND INTERLEUKIN-12 AND USES THEREOF Download PDFInfo
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- WO1996010423A1 WO1996010423A1 PCT/US1995/012611 US9512611W WO9610423A1 WO 1996010423 A1 WO1996010423 A1 WO 1996010423A1 US 9512611 W US9512611 W US 9512611W WO 9610423 A1 WO9610423 A1 WO 9610423A1
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- Prior art keywords
- peptide
- adjuvant
- protein
- interleukin
- immune response
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- 102000013462 Interleukin-12 Human genes 0.000 title claims abstract description 50
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/82—Translation products from oncogenes
-
- 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
- A61K39/0005—Vertebrate antigens
- A61K39/0011—Cancer antigens
- A61K39/001148—Regulators of development
- A61K39/00115—Apoptosis related proteins, e.g. survivin or livin
- A61K39/001151—Apoptosis related proteins, e.g. survivin or livin p53
-
- 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
- A61K2039/555—Medicinal preparations containing antigens or antibodies characterised by a specific combination antigen/adjuvant
- A61K2039/55511—Organic adjuvants
- A61K2039/55522—Cytokines; Lymphokines; Interferons
- A61K2039/55527—Interleukins
- A61K2039/55538—IL-12
-
- 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
- A61K2039/555—Medicinal preparations containing antigens or antibodies characterised by a specific combination antigen/adjuvant
- A61K2039/55511—Organic adjuvants
- A61K2039/55577—Saponins; Quil A; QS21; ISCOMS
-
- 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
Definitions
- the immune response includes, inter alia, provocation of T cells, such as cytolytic T cells, against complexes of a p53 derived peptide and MHC molecules or a p53 derived peptide or protein itself, as well as antibodies against such peptides and proteins.
- T cells and antibodies may be generated, e.g., in a mouse, rat, rabbit, sheep, goat or other non-human animal, and then used in diagnostic methods to identify tumor presence. They may also be generated in vitro such as by cell culture and hybridoma techniques.
- the compositions may also be used, therapeutically, via administration to a subject afflicted with a cancerous condition or one where cell transformation has taken place, to provoke an immune response against tumors, cancer cells, and transformed cells.
- Adjuvants are substances which promote immune responses. Frequently, the adjuvant of choice is Freund's complete adjuvant, or killed ⁇ . pertussis organisms, used in combination with alum precipitated antigen. A general discussion of adjuvants is provided in Goding, Monoclonal Antibodies: Principles & Practice (Second edition, 1986), at pages 61-63, which are incorporated by reference herein.
- Goding notes, however, that when the antigen of interest is of low molecular weight, or is poorly immunogenic, coupling to an immunogenic carrier is recommended. Such molecules, according to Goding, generally have molecular weights below about 1000.
- the carriers suggested by Goding. at page 283, are keyhole limpet hemocyanin, bovine serum albumin, ovalbumin, and fowl im unoglobulin.
- the immune response may be a general one, with part, most, or all of it being directed against the carrier molecule rather than the im unogen itself.
- Kensil et al disclose the preparation of various saponin extracts, which are useful as adjuvants in immunogenic compositions. As they are natural products, the extracts are not completely defined. Kensil, et al do provide a complete and enabling disclosure for how various extracts, including QA-7, QA-19, and QA-21 (also referred to as QS-21) are prepared.
- bovine serum albumin (“BSA”) was combined with various extracts (examples 8 and 9), and where feline leukemia virus recombinant glycoprotein "gp70R ⁇ was tested, following absorption to aluminum hydroxide (alum).
- the two immunogens tested are expected to be immunogenic in their own right (gp70R ⁇ has a molecular weight of 70 kd, and serum albumin has about the same molecular weight) .
- MTP-MF59 11 an adjuvant referred to as "MTP-MF59 11 is disclosed.
- This adjuvant is used in connection with a Plasmodiu falciparum protein, ,, Pfs-25-B". This combination is described as a transmission blocking vaccine.
- the P. falciparum protein is itself large enough to be immunogenic.
- the improved adjuvants can be used in combination with presumptively non-immunogenic proteins and peptides to yield immunologically effective compositions.
- Interleukin-12 is known to play an important role in the differentiation of T deliberately0-T H 1, and T formula2-T H 0 cells in vivo. See Manetti, et al, J. Exp. Med 177:1199-1204 (1993); Hsieh, et al, Science 260:547-549 (1993).
- p53 The molecule referred to as p53 has been known for a number of years. A brief summary of the molecule is provided by Culotta, et al., Science 262: 1958-1961 (1993) ("p53 Sweeps Through Cancer Research"). As reported therein, about 50% of all subjects diagnosed with cancer have a p53 mutation (or p53 mutations). These mutations can abolish the function of normal, or wild type p53, which is to act as a tumor suppressor of the observed mutations, about 90% involve a change in amino acid sequence (a "missense” mutation), as compared to "nonsense” mutations, where the changes in the gene result in truncation or destabilization of the protein.
- the wt p53 molecule is also involved in the cell cycle, in that it inhibits cell division. This is accomplished by activating a second protein of 21 kilodaltons, which inhibit the proteins "cdk” and "cyk", which are required for cell division.
- compositions can be made which comprise immunogenic peptides, such as p53 derived peptides, in combination with an adjuvant such as those described above and the cytokine interleukin-12, or "IL- 12".
- immunogenic peptides such as p53 derived peptides
- an adjuvant such as those described above and the cytokine interleukin-12, or "IL- 12”.
- these compositions provoke an immunogenic response which is surprisingly strong, and totally unexpected in view of the response elicited with each element by itself, or pairs of these elements.
- the immunogenic peptide or protein is combined with the adjuvant QS21, which is disclosed in the Kensil, et al, patent, incorporated by reference supra.
- a further aspect of this invention is the use of the cytokine, IL-12.
- Other interleukins i.e., IL-1, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, and IL-11, may also be used in view of their known efficacy as T-cell and B-cell growth factors. Of these, IL-2 is especially preferred.
- the compositions yield unexpected results when administered to T cells or B cells, in vitro or in vivo, in that their proliferation or other response, is surprisingly enhanced.
- the im unogens of this invention include all p53 derived peptides and proteins, such as mutant p53 peptides, as exemplified.
- FIGS 1A-1E depict experiments showing the antitumor effect of IL-12.
- differing doses of IL-12 were administered to mice which had been injected with Meth A sarcoma cells.
- Figures 2A-2C show the importance of the timing of the administration of IL-12.
- IL-12 was administered 14 days before challenge with Meth A cells.
- Figure 2B the IL-12 was administered on the same day that the challenge took place.
- Figure 2C the IL-12 was administered 7 days after challenge.
- Figures 3A-3J cover the use of two adjuvants, QS-21 and Incomplete Freund's adjuvant, together with IL-12. The experiments are directed to the study of IL-12' ⁇ immuno modulatory effect.
- QS-21 was used.
- IFA was used.
- various doses of IL-12 were used.
- Figures 4A-4C show that there was strong suppression of tumor growth when low doses of IL-12 were administered with peptides.
- the mutant peptide was administered in QS-21.
- Figure 4B wild type peptide was combined with QS-21, and in Figure 4C, QS-21 was used alone.
- the peptide/adjuvant combination was administered 7 and 14 days after challenge with peptides.
- a very low dose of IL-12 (1 ng) was administered at day 7, and then as elaborated upon infra.
- Method A methylcholanthrene-induced sarcoma
- BALB/C murine
- BALB/C female mice were injected intrader ally with 5 x 10 4 Meth A cells on day 0. Seven days later, a treatment regime began, wherein the animals received doses of IL-12, 4 times a week. Control animals received no IL-12. The remaining animals received 1 ng, 10 ng, 100 ng, or 500 ng of IL-12 in each dose, administered by intraperitoneal injection. The effect of the IL-12 on the induced tumors was observed by measuring the diameter of the tumors at the end of the treatment period.
- Figures 1A, IB, 1C, ID and IE show this. The panels show results with doses of 0 ng, 1 ng, 10 ng, 100 ng, and 500 ng, respectively. It is clear from these figures that there is a dose dependent anti-tumor effect provoked by IL-12, although the doses are extremely small.
- Example 3 The importance of timing in the administration of IL-12 was then studied.
- female BALB/C mice were again injected with 5 x 10" Meth A cells, as in Example 1 (day 0).
- Injections of 100 ng IL-12 were administered at day "-14" (i.e., 14 days before challenge with the tumor cells), day 0, or day 7 (i.e., 7 days after challenge) as in Example 1.
- day "-14" i.e., 14 days before challenge with the tumor cells
- day 7 i.e., 7 days after challenge
- Peptide 234 CM has amino acid sequence:
- Ly ⁇ Tyr lie Cys Asn Ser Ser Cys Met (SEQ ID NO: 1) and contains a point mutation in codon 234 of Meth A p53.
- the wild type counterpart is
- mice were immunized with 100 ⁇ g of the wild type peptide, combined with the adjuvant QS-21, described supra. or Incomplete Freund's Adjuvant ("IFA"). A total of 10 ⁇ g of QS- 21 was used for each injection. The IFA was dissolved in PBS, at concentrations of 1 mg/ml. The combination of peptide and adjuvant was administered twice at weekly intervals. Over the two week period, the animals were also injected with IL-12, four times. The dose of IL-12 was either 0.1 ng, 1 ng, 10 ng, or 100 ng. Control animals received no IL-12.
- IFA Incomplete Freund's Adjuvant
- the spleen cells of the immunized mice were sensitized with syngeneic spleen cells, pulsed with the mutant peptide (234CM). Sensitization was carried out using well known techniques. The activity of CTLs in the sample was determined using the well known 51 Cr release assay. This methodology is described by Noguchi, et al, Proc. Natl. Acad. Sci USA 91:3171-3175 (1994), incorporated by reference. Sensitization with pulsed spleen cells is a methodology which leads to a much stronger response than if peptide alone were administered.
- figures 3A and 3F present data from controls
- figures 3B and 3G show the data obtained when 0.1 ng of IL-12 was used
- figures 3C and 3H show results where 1 ng of IL-12 was used
- figures 3D and 31 present the results where 10 ng of the cytokine were used
- 3E and 3J where 100 ng were used.
- Data are presented in terms of the percentage of chromium release, where the amount of peptide contacted to the cells (2.5 ⁇ g or 10 ⁇ g)
- figures 3A-3E are from experiments in which QS-21 was used
- figures 3F-3J resulted from experiments where IFA was used.
- This set of experiments investigated whether the combination of a peptide immunogen and a low dose of IL-12 would suppress the growth of established tumors.
- mice Female BALB/C mice were injected with 5 x 10* Meth A cells at day 0.
- the mice received two injections of the mutant peptide in QS-21, the wild type peptide in QS-21, or QS-21 alone in the same manner described in Example 3, at weekly intervals.
- the mice began receiving injections of 1 ng of IL-12 (4 times a week, for two weeks).
- Figure 4A resulted from QS-21 plus the mutant peptide.
- Figure 4B resulted from QS-21 plus peptide, followed by injections with IL-12.
- Figure 4C resulted from QS-21 alone. These figures show that the IL-12 had a growth suppressive effect on the tumors. In results not depicted, immunization with wild type peptide did not lead to suppression of tumor growth, even when combined with QS-21 and IL-12. Also not shown are results in which QS-21 was shown to be more effective than IFA in inducing the regression of the tumors.
- compositions comprising an amount of a p53 derived peptide, an adjuvant, e.g., QS-21, and Interleukin-12, as well as the use of the composition in the in vivo treatment of cancer.
- the immunogen is used in an amount sufficient to provoke an immune response against tumor cells which present it on their surface, and combined with QS-21 and IL-12.
- the peptide, the adjuvant, nor the IL-12 worked to stimulate an immune response when used alone, nor was the response particularly strong when the peptide was combined with adjuvant.
- the results show that the IL-12 is particularly effective after tumors have already formed, and as combined with the peptide and the adjuvant, is effective in very small does.
- compositions of the invention comprise any peptide or protein, derived from p53, in combination with a pharmaceutically acceptable adjuvant.
- Preferred embodiments of the invention utilize the peptides of SEQ ID NO: 1 and 2.
- Other p53 based peptides may also be used.
- an important aspect of the invention is stimulation of proliferation of T cells.
- This can be an initial stimulation or an augmentation of a prior stimulation.
- it is desirable to stimulate cytolytic T cells.
- the cytolytic T cells recognize complexes of MHC and peptide, bind thereto via their receptor, and proliferate. They also lyse the recognized cells. This response can be used not only in vivo r but in vitro, as it is well established that cytolytic T cells specific for particular complexes of MHC and peptide are present in the blood of subjects who have experienced cell transformation.
- any cytolytic T cells in the blood sample will expand, i.e., proliferate.
- This proliferation an be measured via any of the well known assays designed therefor.
- the well known radioactive chromium ( 51 Cr) release assay and the measurement of release of tumor necrosis factor (TNF).
- 51 Cr radioactive chromium
- TNF tumor necrosis factor
- compositions are also useful as stimulators of B cell proliferation, or antibody production. Again, it is well known that B cells produce antibodies, and the size of their targets are well within the sizes of the p53 antigen. As with T cells, the stimulation may be "ab initio", or an augmentation of a prior response, in vitro or in vivo.
- the amount of peptide used will vary, depending upon the purpose of the immunization and the subject to which it is administered. For example, in the case of generating murine antibodies which can then be used, e.g., to diagnose for the presence of cancer cells presenting a p53 peptide, the amount of protein or peptide may be less than that used in a course of in vivo therapy. such as that described in the example, supra.
- a preferred dose can range from about 1 ug to about 750 ug of protein or peptide per dose. In a preferred embodiment, the range is from about 10 ug to about 500 ug. Most preferably, anywhere from about 30 ug to about 300 ug per dose may be used.
- the investigator will modify the dose, as a six month old infant will require dosing different from a full grown man, e.g.
- the mode of administration may vary, with preferred forms being oral, subcutaneous, intramuscular, intravenous and intraperitoneal adminstration.
- the choice of protein or peptide in the composition will depend upon parameters determinable by the artisan. It is art recognized, for example, that different peptides are presented by the various MHC molecules.
- HLA-A2 molecules As such, if a subject is typed, using well known techniques, as presenting HLA-A2 molecules on the surface of tumor cells, one will use a peptide presented by HLA-A2 molecules rather than one presented by, e.g., HLA- Cw * 1601. Similarly, using techniques such as poly erase chain reaction ("PCR"), lysis studies, and other assay methodologies which are well known in the art, one can determine which protein or peptide is being expressed by a subject patient. This will lead to the decision as to what protein or peptide to use. Again, by way of example, if a subject's tumor cells are expressing mutant p53 but not normal p53 peptide, the peptide used in immunization should be derived from the mutant form.
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Abstract
The invention involves the combination of Interleukin-12 with p53 derived peptides and an adjuvant, preferably QS-21. It is found that this combination provokes a surprisingly strong immune response. Further, in an accepted in vivo model, the use of compositions containing these three ingredients led to diamatic decreases in the growth of induced tumors, thus suggesting a therapeutic regime.
Description
COMPOSITIONS CONTAINING A p53 DERIVED PROTEIN
OR PEPTIDE, AN ADJUVANT, AND INTERLEUKIN-12 AND USES THEREOF RELATED APPLICATION
This application is a continuation-in-part of patent application Serial No. 08/316,622, filed on September 30, 1994. FIELD OF THE INVENTION
This invention relates to compositions useful in the generation of an immune response. The immune response includes, inter alia, provocation of T cells, such as cytolytic T cells, against complexes of a p53 derived peptide and MHC molecules or a p53 derived peptide or protein itself, as well as antibodies against such peptides and proteins. Such T cells and antibodies may be generated, e.g., in a mouse, rat, rabbit, sheep, goat or other non-human animal, and then used in diagnostic methods to identify tumor presence. They may also be generated in vitro such as by cell culture and hybridoma techniques. The compositions may also be used, therapeutically, via administration to a subject afflicted with a cancerous condition or one where cell transformation has taken place, to provoke an immune response against tumors, cancer cells, and transformed cells. BACKGROUND AND PRIOR ART
Adjuvants, broadly defined, are substances which promote immune responses. Frequently, the adjuvant of choice is Freund's complete adjuvant, or killed β. pertussis organisms, used in combination with alum precipitated antigen. A general discussion of adjuvants is provided in Goding, Monoclonal Antibodies: Principles & Practice (Second edition, 1986), at pages 61-63, which are incorporated by reference herein.
Goding notes, however, that when the antigen of interest is of low molecular weight, or is poorly immunogenic, coupling to an immunogenic carrier is recommended. Such molecules, according to Goding, generally have molecular weights below about 1000. Among the carriers suggested by Goding. at page 283, are
keyhole limpet hemocyanin, bovine serum albumin, ovalbumin, and fowl im unoglobulin.
What is problematic about such carriers, however, is that frequently they are also immunogenic themselves. Thus, the immune response may be a general one, with part, most, or all of it being directed against the carrier molecule rather than the im unogen itself.
Exemplary of developments in the art as they relate to adjuvants is U.S. Patent No. 5,057,540 to Kensil, et al, the disclosure of which is incorporated by reference herein. Kensil et al disclose the preparation of various saponin extracts, which are useful as adjuvants in immunogenic compositions. As they are natural products, the extracts are not completely defined. Kensil, et al do provide a complete and enabling disclosure for how various extracts, including QA-7, QA-19, and QA-21 (also referred to as QS-21) are prepared. Experiments are set forth in which bovine serum albumin ("BSA") was combined with various extracts (examples 8 and 9), and where feline leukemia virus recombinant glycoprotein "gp70RΔ was tested, following absorption to aluminum hydroxide (alum). The two immunogens tested, however, are expected to be immunogenic in their own right (gp70RΔ has a molecular weight of 70 kd, and serum albumin has about the same molecular weight) . No experiments were carried out at all on molecules which should, per se, be considered to be poorly or even non-immunogenic, and thus would be expected to require the use of alum absorption or the use of haptenic carriers for provocation of a response.
In PCT Application W09219758, which corresponds to defensive publication 7697275, which is incorporated by reference herein, an adjuvant referred to as "MTP-MF5911 is disclosed. This adjuvant is used in connection with a Plasmodiu falciparum protein, ,,Pfs-25-B". This combination is described as a transmission blocking vaccine. The P. falciparum protein is itself large enough to be immunogenic. Thus, none of the art shows that the improved adjuvants can be used in combination with presumptively non-immunogenic
proteins and peptides to yield immunologically effective compositions.
Interleukin-12, or "IL-12" hereafter, is known to play an important role in the differentiation of T„0-TH1, and T„2-TH0 cells in vivo. See Manetti, et al, J. Exp. Med 177:1199-1204 (1993); Hsieh, et al, Science 260:547-549 (1993).
The molecule referred to as p53 has been known for a number of years. A brief summary of the molecule is provided by Culotta, et al., Science 262: 1958-1961 (1993) ("p53 Sweeps Through Cancer Research"). As reported therein, about 50% of all subjects diagnosed with cancer have a p53 mutation (or p53 mutations). These mutations can abolish the function of normal, or wild type p53, which is to act as a tumor suppressor of the observed mutations, about 90% involve a change in amino acid sequence (a "missense" mutation), as compared to "nonsense" mutations, where the changes in the gene result in truncation or destabilization of the protein. The wt p53 molecule is also involved in the cell cycle, in that it inhibits cell division. This is accomplished by activating a second protein of 21 kilodaltons, which inhibit the proteins "cdk" and "cyk", which are required for cell division.
It has now been found, surprisingly, that compositions can be made which comprise immunogenic peptides, such as p53 derived peptides, in combination with an adjuvant such as those described above and the cytokine interleukin-12, or "IL- 12". When administered to a subject animal, these compositions provoke an immunogenic response which is surprisingly strong, and totally unexpected in view of the response elicited with each element by itself, or pairs of these elements. In especially preferred embodiments the immunogenic peptide or protein is combined with the adjuvant QS21, which is disclosed in the Kensil, et al, patent, incorporated by reference supra.
A further aspect of this invention is the use of the cytokine, IL-12. Other interleukins, i.e., IL-1, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, and IL-11, may also
be used in view of their known efficacy as T-cell and B-cell growth factors. Of these, IL-2 is especially preferred. The compositions yield unexpected results when administered to T cells or B cells, in vitro or in vivo, in that their proliferation or other response, is surprisingly enhanced. The im unogens of this invention include all p53 derived peptides and proteins, such as mutant p53 peptides, as exemplified.
The invention is described in greater detail in the disclosure which follows. BRIEF DESCRIPTION OF THE FIGURES.
Figures 1A-1E, inclusive, depict experiments showing the antitumor effect of IL-12. In these figures, differing doses of IL-12 were administered to mice which had been injected with Meth A sarcoma cells. Figures 2A-2C show the importance of the timing of the administration of IL-12. In figure 2A, IL-12 was administered 14 days before challenge with Meth A cells. In Figure 2B, the IL-12 was administered on the same day that the challenge took place. In Figure 2C, the IL-12 was administered 7 days after challenge.
Figures 3A-3J cover the use of two adjuvants, QS-21 and Incomplete Freund's adjuvant, together with IL-12. The experiments are directed to the study of IL-12'ε immuno modulatory effect. In Figures 3A-3E, QS-21 was used. In Figures 3F-3J, IFA was used. As explained infra, various doses of IL-12 were used.
Figures 4A-4C show that there was strong suppression of tumor growth when low doses of IL-12 were administered with peptides. In Figure 4A, the mutant peptide was administered in QS-21. In Figure 4B, wild type peptide was combined with QS-21, and in Figure 4C, QS-21 was used alone. The peptide/adjuvant combination was administered 7 and 14 days after challenge with peptides. A very low dose of IL-12 (1 ng) was administered at day 7, and then as elaborated upon infra.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Example 1
The anti-tumor effect of IL-12, used in combination with mutant p53 peptides, was studied.
The in vivo model employed used the transplantable, methylcholanthrene-induced sarcoma "Meth A." This is a sarcoma of BALB/C (murine) origin, passaged as an ascitic tumor. See Old, et al, Ann. N.Y. Acad. Sci 101:80-106 (1962), incorporated by reference in its entirety.
BALB/C female mice were injected intrader ally with 5 x 104 Meth A cells on day 0. Seven days later, a treatment regime began, wherein the animals received doses of IL-12, 4 times a week. Control animals received no IL-12. The remaining animals received 1 ng, 10 ng, 100 ng, or 500 ng of IL-12 in each dose, administered by intraperitoneal injection. The effect of the IL-12 on the induced tumors was observed by measuring the diameter of the tumors at the end of the treatment period. Figures 1A, IB, 1C, ID and IE show this. The panels show results with doses of 0 ng, 1 ng, 10 ng, 100 ng, and 500 ng, respectively. It is clear from these figures that there is a dose dependent anti-tumor effect provoked by IL-12, although the doses are extremely small.
The effect of the IL-12 was abolished by administering monoclonal antibodies against CD8 molecules, but was not affected via administration of anti-CD4 mAbs. This suggests that cytolytic T cells are an essential part of the response. Example 2
The importance of timing in the administration of IL-12 was then studied. In these experiments, female BALB/C mice were again injected with 5 x 10" Meth A cells, as in Example 1 (day 0). Injections of 100 ng IL-12 were administered at day "-14" (i.e., 14 days before challenge with the tumor cells), day 0, or day 7 (i.e., 7 days after challenge) as in Example 1. These results, presented in figures 2A (day "- 14"), 2B (day 0), and 2C (day 7) show that IL-12 is most effective after the tumor had become established.
Example 3
The experiments set forth in this example evaluate the effect of IL-12 on generation of cytolytic T cells ("CTLs" hereafter) specific to peptide/MLTC complexes. Peptide 234 CM has amino acid sequence:
Lyε Tyr lie Cys Asn Ser Ser Cys Met (SEQ ID NO: 1) and contains a point mutation in codon 234 of Meth A p53. The wild type counterpart is
Lys Tyr Met Cys Asn Ser Ser Cys Met (SEQ ID NO: 2) BALB/C female mice were immunized with 100 μg of the wild type peptide, combined with the adjuvant QS-21, described supra. or Incomplete Freund's Adjuvant ("IFA"). A total of 10 μg of QS- 21 was used for each injection. The IFA was dissolved in PBS, at concentrations of 1 mg/ml. The combination of peptide and adjuvant was administered twice at weekly intervals. Over the two week period, the animals were also injected with IL-12, four times. The dose of IL-12 was either 0.1 ng, 1 ng, 10 ng, or 100 ng. Control animals received no IL-12.
One week after the last injections, the spleen cells of the immunized mice were sensitized with syngeneic spleen cells, pulsed with the mutant peptide (234CM). Sensitization was carried out using well known techniques. The activity of CTLs in the sample was determined using the well known 51Cr release assay. This methodology is described by Noguchi, et al, Proc. Natl. Acad. Sci USA 91:3171-3175 (1994), incorporated by reference. Sensitization with pulsed spleen cells is a methodology which leads to a much stronger response than if peptide alone were administered.
The results are presented in figure 3, where figures 3A and 3F present data from controls, figures 3B and 3G show the data obtained when 0.1 ng of IL-12 was used, figures 3C and 3H show results where 1 ng of IL-12 was used, figures 3D and 31 present the results where 10 ng of the cytokine were used, and 3E and 3J, where 100 ng were used. Data are presented in terms of the percentage of chromium release, where the amount of peptide contacted to the cells (2.5 μg or 10 μg) , figures
3A-3E are from experiments in which QS-21 was used, while figures 3F-3J resulted from experiments where IFA was used.
In figures 3A-3J, the filled in dots (•-•) represent the data from the mutant peptide experiments. Also presented are results in which the wild type peptide was pulsed to cell line PI-HTR (a cell line derived from the mastocytoma P815, of DBA/2 origins. (See Old, et al, supra). These data are filled in squares (d-B). Also presented are data where PI- HTR were pulsed in the absence of peptide (^-^)- This model is used, and is useful because one of the known features of Meth A is that it does not generate a CTL response. PI-HTR, however, does, and can be used as a model to determine the efficacy of the compositions discussed herein.
The data presented in figure 3 show that 1 ng of IL-12 was the optimal dose for the generation of CTLs, while higher doses had a suppressive effect. No CTLs were elicited following immunization with wild type peptide, regardless of the adjuvant or treatment with IL-12. Example 4
This set of experiments investigated whether the combination of a peptide immunogen and a low dose of IL-12 would suppress the growth of established tumors.
As with the prior experiments, female BALB/C mice were injected with 5 x 10* Meth A cells at day 0. The mice received two injections of the mutant peptide in QS-21, the wild type peptide in QS-21, or QS-21 alone in the same manner described in Example 3, at weekly intervals. At day 7, the mice began receiving injections of 1 ng of IL-12 (4 times a week, for two weeks).
The results are presented in figures 4A-4C. Figure 4A resulted from QS-21 plus the mutant peptide. Figure 4B resulted from QS-21 plus peptide, followed by injections with IL-12. Figure 4C resulted from QS-21 alone.These figures show that the IL-12 had a growth suppressive effect on the tumors. In results not depicted, immunization with wild type peptide did not lead to suppression of tumor growth, even when combined with QS-21 and IL-12.
Also not shown are results in which QS-21 was shown to be more effective than IFA in inducing the regression of the tumors.
The foregoing examples demonstrate a composition comprising an amount of a p53 derived peptide, an adjuvant, e.g., QS-21, and Interleukin-12, as well as the use of the composition in the in vivo treatment of cancer. The immunogen is used in an amount sufficient to provoke an immune response against tumor cells which present it on their surface, and combined with QS-21 and IL-12. Among the noteworthy features of the invention is the fact that none of the peptide, the adjuvant, nor the IL-12 worked to stimulate an immune response when used alone, nor was the response particularly strong when the peptide was combined with adjuvant. Further, the results show that the IL-12 is particularly effective after tumors have already formed, and as combined with the peptide and the adjuvant, is effective in very small does.
The compositions of the invention comprise any peptide or protein, derived from p53, in combination with a pharmaceutically acceptable adjuvant. Preferred embodiments of the invention utilize the peptides of SEQ ID NO: 1 and 2. Other p53 based peptides may also be used.
As will be seen from the foregoing discussion, an important aspect of the invention is stimulation of proliferation of T cells. This can be an initial stimulation or an augmentation of a prior stimulation. In particular, it is desirable to stimulate cytolytic T cells. The cytolytic T cells recognize complexes of MHC and peptide, bind thereto via their receptor, and proliferate. They also lyse the recognized cells. This response can be used not only in vivor but in vitro, as it is well established that cytolytic T cells specific for particular complexes of MHC and peptide are present in the blood of subjects who have experienced cell transformation. By contacting a blood sample of individuals in vitro with the peptide of interest and cells which present the MHC molecule of interest, any cytolytic T cells in the blood sample will expand, i.e., proliferate. This
proliferation an be measured via any of the well known assays designed therefor. Especially preferred are the well known radioactive chromium (51Cr) release assay, and the measurement of release of tumor necrosis factor (TNF). These assays are efficacious when peptides such as mutant p53 peptides and other p53 peptides, are used.
The compositions are also useful as stimulators of B cell proliferation, or antibody production. Again, it is well known that B cells produce antibodies, and the size of their targets are well within the sizes of the p53 antigen. As with T cells, the stimulation may be "ab initio", or an augmentation of a prior response, in vitro or in vivo.
The amount of peptide used will vary, depending upon the purpose of the immunization and the subject to which it is administered. For example, in the case of generating murine antibodies which can then be used, e.g., to diagnose for the presence of cancer cells presenting a p53 peptide, the amount of protein or peptide may be less than that used in a course of in vivo therapy. such as that described in the example, supra. In general, a preferred dose can range from about 1 ug to about 750 ug of protein or peptide per dose. In a preferred embodiment, the range is from about 10 ug to about 500 ug. Most preferably, anywhere from about 30 ug to about 300 ug per dose may be used. Of course, in the context of the therapeutic aspect of the invention, the investigator will modify the dose, as a six month old infant will require dosing different from a full grown man, e.g. The mode of administration may vary, with preferred forms being oral, subcutaneous, intramuscular, intravenous and intraperitoneal adminstration. The choice of protein or peptide in the composition will depend upon parameters determinable by the artisan. It is art recognized, for example, that different peptides are presented by the various MHC molecules. As such, if a subject is typed, using well known techniques, as presenting HLA-A2 molecules on the surface of tumor cells, one will use a peptide presented by HLA-A2 molecules rather than one presented by, e.g., HLA-
Cw* 1601. Similarly, using techniques such as poly erase chain reaction ("PCR"), lysis studies, and other assay methodologies which are well known in the art, one can determine which protein or peptide is being expressed by a subject patient. This will lead to the decision as to what protein or peptide to use. Again, by way of example, if a subject's tumor cells are expressing mutant p53 but not normal p53 peptide, the peptide used in immunization should be derived from the mutant form.
Other aspects of the invention will be clear to the skilled artisan and need not be reiterated here.
The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terras and expressions of excluding any equivalents of the features shown and described or portions thereof, it being recognized that various modifications are possible within the scope of the invention.
(1) GENERAL INFORMATION:
(i) APPLICANTS: Noguchi, Yugi; Chen, Yao-tseng;
Old, Lloyd J. (ii) TITLE OF INVENTION: Compositions Containing A p53 Derived Protein Or Peptide, An Adjuvant, And
Interleukin-12 And Uses Thereof (iii) NUMBER OF SEQUENCES: 2 (iv) CORRESPONDENCE ADDRESS:
(A) ADDRESSEE: Felfe & Lynch (B) STREET: 805 Third Avenue
(C) CITY: New York City
(D) STATE: New York
(E) COUNTRY: USA
(F) ZIP: 10022 (V) COMPUTER READABLE FORM:
(A) MEDIUM TYPE: Diskette, 5.25 inch, 360 kb storage
(B) COMPUTER: IBM PS/2
(C) OPERATING SYSTEM: PC-DOS (D) SOFTWARE: Wordperfect
(vi) CURRENT APPLICATION DATA:
(A) APPLICATION NUMBER: 08/408,915
(B) FILING DATE: 22-MARCH-1995
(C) CLASSIFICATION: 435 (vii) PRIOR APPLICATION DATA:
(A) APPLICATION NUMBER: 08/316,622
(B) FILING DATE: 30-SEPTEMBER-1994 (viϋ) ATTORNEY/AGENT INFORMATION:
(A) NAME: Hanson, Norman D. (B) REGISTRATION NUMBER: 30,946
(C) REFERENCE/DOCKET NUMBER: LUD 5391.1 (ix) TELECOMMUNICATION INFORMATION:
(A) TELEPHONE: (212) 688-9200
(B) TELEFAX: (212) 838-3884
(2) INFORMATION FOR SEQ ID NO: 1: (i) SEQUENCE CHARACTERISTICS:
(A) LENGTH: 9 amino acids
(B) TYPE: amino acid (D) TOPOLOGY: linear (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 1:
Lys Tyr lie Cys Asn Ser Ser Cys Met
5
(2) INFORMATION FOR SEQ ID NO: 2: (i) SEQUENCE CHARACTERISTICS:
(A) LENGTH: 9 amino acids (B) TYPE: amino acid
(D) TOPOLOGY: linear (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 2:
Lys Tyr Met Cys Asn Ser Ser Cys Met 5
Claims
We claim:
I. Composition useful in provoking an immune response comprising an amount of (i) a p53 derived protein or peptide, (ii) an adjuvant, and (iii) Interleukin-12, sufficient to provoke an immune response.
2. The composition of matter of claim 1, wherein said protein or peptide binds to an MHC molecule.
3. The composition of claim 1, wherein said peptide or peptide is derived from a protein expressed by a transformed cell.
4. The composition of claim 3, wherein said protein or peptide is a mutant p53 protein or peptide.
5. The composition of claim 1, wherein said immune response is a B cell response.
6. The composition of claim 1, wherein said adjuvant comprises a saponin.
7. The composition of claim 6, wherein said adjuvant comprises QS-21.
8. Kit useful in provoking an immune response, comprising a container means and a separate portion of each of (i) a p53 derived protein or peptide,
(ii) an adjuvant, and (iii) Interleukin-12.
9. Kit useful for provoking an immune response, comprising a container means which holds a separate protein of each of
(i) a nucleic acid molecule which codes for a molecule which is processed in a transformed cell into at least one p53 derived protein or peptide, (ii) an adjuvant, and (iii) Interleukin-12.
10. The kit of claim 8, wherein said nucleic acid molecule codes for a protein or peptide associated with cell transformation.
II. Method for provoking an immune response in a subject, comprising administering to said subject an immune stimulating amount of (i) a p53 derived protein or peptide,
(ii) an adjuvant, and (iii) Interleukin-12.
12. The method of claim 11, wherein said immune response is a T cell response.
13. The method of claim 11, wherein said adjuvant is QS-
21.
14. The method of claim 11, wherein said protein or peptide is associated with cell transformation.
15. The method of claim 11, wherein said subject is afflicted with a tumor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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AU37350/95A AU3735095A (en) | 1994-09-30 | 1995-09-28 | Compositions containing a p53 derived protein or peptide, an adjuvant, and interleukin-12 and uses thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31662294A | 1994-09-30 | 1994-09-30 | |
US08/316,622 | 1994-09-30 | ||
US08/408,915 | 1995-03-22 | ||
US08/408,915 US6355256B1 (en) | 1994-09-30 | 1995-03-22 | Compositions containing a p53 derived protein or peptide, an adjuvant, and interleukin-12 and uses thereof |
Publications (1)
Publication Number | Publication Date |
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WO1996010423A1 true WO1996010423A1 (en) | 1996-04-11 |
Family
ID=26980513
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PCT/US1995/012611 WO1996010423A1 (en) | 1994-09-30 | 1995-09-28 | COMPOSITIONS CONTAINING A p53 DERIVED PROTEIN OR PEPTIDE, AN ADJUVANT, AND INTERLEUKIN-12 AND USES THEREOF |
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AU (1) | AU3735095A (en) |
WO (1) | WO1996010423A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998057659A1 (en) * | 1997-06-14 | 1998-12-23 | Smithkline Beecham Biologicals S.A. | Adjuvant compositions for vaccines |
WO2002011759A1 (en) * | 2000-08-09 | 2002-02-14 | Neovacs | Vaccines against cytokines and growth factors derived from malignant tumours |
WO2001097841A3 (en) * | 2000-06-22 | 2002-05-30 | American Cyanamid Co | Qs-21 and il-12 as an adjuvant combination |
US6929794B1 (en) | 1996-05-31 | 2005-08-16 | National University Of Ireland | IL-12 as an adjuvant for Bordetella pertussis vaccines |
US7611721B1 (en) | 1999-05-13 | 2009-11-03 | Wyeth Holdings Corporation | Adjuvant combination formulations |
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WO1994002167A1 (en) * | 1992-07-22 | 1994-02-03 | The Trustees Of Princeton University | p53 VACCINE |
WO1994016716A1 (en) * | 1993-01-21 | 1994-08-04 | Virogenetics Corporation | Recombinant virus immunotherapy |
-
1995
- 1995-09-28 AU AU37350/95A patent/AU3735095A/en not_active Abandoned
- 1995-09-28 WO PCT/US1995/012611 patent/WO1996010423A1/en active Application Filing
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WO1994002167A1 (en) * | 1992-07-22 | 1994-02-03 | The Trustees Of Princeton University | p53 VACCINE |
WO1994016716A1 (en) * | 1993-01-21 | 1994-08-04 | Virogenetics Corporation | Recombinant virus immunotherapy |
Non-Patent Citations (4)
Title |
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CURRENT OPINION IN IMMUNOLOGY, Volume 4, issued 1992, P.O. LIVINGSTON, "Construction of Cancer Vaccines with Carbohydrate and Protein (Peptide) Tumor Antigens", pages 624-629. * |
HUMAN GENE THERAPY, Volume 5, No. 9, issued September 1994, WILLS et al., "Development and Characterization of Recombinant Adenoviruses Encoding Human p53 for Gene Therapy of Cancer", pages 1079-1088. * |
IMMUNOLOGY LETTERS, Volume 40, issued 1994, NIJMAN et al., "p53, A Potential Target for Tumor-Directed T Cells", pages 171-178. * |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6929794B1 (en) | 1996-05-31 | 2005-08-16 | National University Of Ireland | IL-12 as an adjuvant for Bordetella pertussis vaccines |
WO1998057659A1 (en) * | 1997-06-14 | 1998-12-23 | Smithkline Beecham Biologicals S.A. | Adjuvant compositions for vaccines |
WO1998057660A1 (en) * | 1997-06-14 | 1998-12-23 | Smithkline Beecham Biologicals S.A. | Adjuvant compositions for vaccines |
US6375945B1 (en) | 1997-06-14 | 2002-04-23 | Smithkline Beecham Biologicals S.A. | Adjuvant compositions for vaccines |
US7611721B1 (en) | 1999-05-13 | 2009-11-03 | Wyeth Holdings Corporation | Adjuvant combination formulations |
WO2001097841A3 (en) * | 2000-06-22 | 2002-05-30 | American Cyanamid Co | Qs-21 and il-12 as an adjuvant combination |
JP2003535906A (en) * | 2000-06-22 | 2003-12-02 | アメリカン・サイアナミド・カンパニー | QS-21 and IL-12 as adjuvant combinations |
AU2001270031B2 (en) * | 2000-06-22 | 2005-11-03 | Wyeth Holdings Corporation | QS-21 and IL-12 as an adjuvant combination |
US7374751B1 (en) | 2000-06-22 | 2008-05-20 | Wyeth Holdings Corporation | QS-21 and IL-12 as an adjuvant combination |
WO2002011759A1 (en) * | 2000-08-09 | 2002-02-14 | Neovacs | Vaccines against cytokines and growth factors derived from malignant tumours |
FR2812813A1 (en) * | 2000-08-09 | 2002-02-15 | Neovacs | USE OF IMMUNOGENS FOR TREATING OR PREVENTING IN MALIGNANT TUMORS IMMUNE DERGMENTS INDUCED BY EXTRACELLULAR FACTORS |
US8101165B2 (en) | 2000-08-09 | 2012-01-24 | Neovacs | Use of immunogens to treat or prevent, in malignant tumors, the immune or vascular disorders induced by extracellular factors |
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