WO2005068632A1 - HLA−A2402拘束性Ep−CAM特異的CTLが認識するエピトープ・ペプチド及びその用途 - Google Patents
HLA−A2402拘束性Ep−CAM特異的CTLが認識するエピトープ・ペプチド及びその用途 Download PDFInfo
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Definitions
- HLA A2402 restricted Ep—Epitope peptides recognized by CAM-specific CTLs and their uses
- the present invention relates to an epitope 'peptide recognized by HLA-A2402-restricted cytotoxic T lymphocytes, an antigen-presenting cell and a major histocompatibility antigen complex, and a cancer vaccine or cytotoxic agent containing these as active ingredients.
- T lymphocyte inducer passive immunotherapeutic agent for epithelial cancer comprising this cytotoxic T lymphocyte inducer as an active ingredient, method for treating or improving cancer using these, and cancer-specific HLA-A2402
- the present invention relates to a method for quantifying restricted cytotoxic T lymphocytes.
- Cytotoxic T lymphocytes (hereinafter abbreviated as "CTL”) are considered to be one of the important factors in resistance to cancer.
- Invasion of CTL showing a damaging activity against tumor cells is observed in the tumor site of cancer patients.
- the tumor antigen which is a target molecule for this tumor-specific CTL, is degraded in the cell to form a peptide with 8-11 amino acid strength (tumor epitope 'peptide), and human leukocyte antigen (major histocompatibility antigen)
- HLA human leukocyte antigen
- “HLA” i) is bound to the molecule and presented on the surface of the tumor cell.
- CTL recognizes a complex consisting of HLA and a tumor antigen peptide and damages tumor cells.
- CTL recognizes tumor cells in an HLA-restricted manner.
- HLA is a cell membrane antigen expressed on almost all cells, and is roughly classified into a class I antigen and a class IV antigen.
- the HLA recognized by CTL along with the epitope 'peptide is a class I antigen.
- HLA class I antigens are further classified into HLA-A, HLA-B, HLA-C, etc., and their genes have subtypes.
- HLA-A has many types such as Al, A2, A24, and A26. The type exists. Therefore, the HLA type of each human individual is not necessarily the same.
- CTL recognizes a complex of HLA class I antigen and tumor epitope peptide, it also recognizes the HLA type.
- epitopes that can bind to HLA have a motif (regular arrangement) in the peptide sequence that can bind to each type of HLA. Column). Therefore, in order to induce and Z or activate CTL, it is necessary to select a peptide having a motif that can bind to each type of HLA, which is different for each patient.
- Ep-CAM is a molecule that is widely expressed on the surface of cancer cells derived from epithelial cells and mediates calcium ion-independent cell-cell adhesion. Ep-CAM is also called EGP-2, 17-1A, GA733-2 or KSA. Ep-CAM is highly expressed in many tumors derived from various histological sources such as the large intestine, lung, head and neck, and mammary gland, and its expression is limited in normal epithelial cells. In addition, since the degree of tumor progression and the expression level of Ep-CAM are correlated, Ep-CAM expression detection is useful as a marker for diagnosis of tumor micrometastasis or survival prediction. .
- Ep-CAM is widely expressed in cancer cells derived from epithelial cells, but its expression is limited in normal cells, so it is one of the main targets for immunotherapy and gene therapy using monoclonal antibodies. It has become.
- Ep-CAM-specific mouse monoclonal antibody (named 17-1A) after surgery prevents distant metastasis and prolongs the survival effect by continuous administration for 7 years. It is reported that it was seen. In addition, it was reported that mortality and recurrence rates were reduced after treating colon cancer patients using a monoclonal antibody against Ep-CAM, named 17-1A! Speak.
- Patent Document 1 reports that CTL specific for HLA-A0201-restricted Ep-CAM destroys epithelial tumor cells but does not affect normal cells.
- Patent Document 1 discloses a peptide consisting of the sequence of YQLDPKFITSI described in SEQ ID NO: 12 as an Ep-CAM174-184 epitope 'peptide recognized by HLA-A0201-restricted CTL.
- a T cell response to Ep-CAM has also been observed in colon colorectal cancer patients after receiving immunotherapy.
- colon cancer patients When immunizing colon cancer patients with recombinant Nalyabox virus expressing Ep-CAM, anti-Ep-CA without causing an autoimmune response M CTL response was induced.
- HLA-A of HLA class I antigens the most expressed in Japanese is HLA—
- the HLA-A24-restricted Ep-CAM epitope 'peptide can be suitably used as a cancer vaccine.
- epitope peptides are as follows.
- Patent Document 2 discloses five epitopes 'peptides having 9 amino acid sequences for SART-2 tumor antigen protein as HLA-A2402-restricted CTL epitopes' peptides.
- Patent Document 3 describes an HLA—A2402-restricted CTL epitope obtained from patients with lung adenocarcinoma • ART-6—six epitopes with 8-11 amino acid sequence ability against tumor antigen proteins. Peptides are disclosed.
- Patent Document 4 discloses that HLA-A2402 constrained CTL epitope 'peptide, which has also been established in esophageal cancer patients, is abnormally expressed in colon cancer cells and small cell lung cancer cells. It discloses seven epitope peptides that have the ability to sequence 8-11 amino acids of the p561uk protein (tumor antigen protein encoded by luk gene).
- Patent Document 5 discloses PI obtained from a cDNA library derived from the KE4 tumor cell line as an HLA-A2402 constrained CTL epitope peptide that has been established in esophageal cancer patients. — 9 peptides from 9 9 4 peptides with the ability to sequence 10 amino acids are disclosed.
- Patent Document 6 discloses PI obtained from a cDNA library of an 11-18 lung adenocarcinoma cell line as an HLA-A2402-restricted CTL epitope 'peptide that has been obtained from lung cancer patients. — Nine peptides derived from nine nineteen peptides having 17 amino acid sequences are disclosed.
- Patent Document 7 is an epitope 'peptide having an HLA-A24.1 (HLA-A2402) -binding motif, and has a first conserved residue of Y, F, and W at the N-terminal portion. And the C-terminal part has F, I, W, M second conserved residues, and the first and second conserved residues are separated by 6-7 residues.
- a peptide having 10 amino acid residue strength is disclosed.
- Ep-CAM's epitope 'peptide capable of binding to HLA-A2402 molecule has not yet been confirmed. Therefore, Ep-CAM specific for cancer cells that can bind to HLA-A2402 molecule It is desired to develop a new epitope 'peptide that can induce CTL.
- Patent Document 1 W097 / 15597 International Publication
- Patent Document 2 JP-A-11-318455
- Patent Document 3 JP 2000-116383 A
- Patent Document 4 WO2000-06595
- Patent Document 5 JP-A-2001-245675
- Patent Document 6 Japanese Patent Laid-Open No. 2003-270
- Patent document 7 Special table hei 8-500103 (claim 11 etc.)
- the present invention provides an Ep-CAM epitope peptide capable of inducing HLA-A2402-restricted cytotoxic T lymphocytes, an antigen-presenting cell and a major histocompatibility complex, a cancer vaccine comprising them as an effective component, or Cytotoxic T lymphocyte inducer, Ep-CAM-specific HLA-A 2402-restricted cytotoxic T lymphocyte, passive immunotherapeutic agent containing the active T lymphocyte, method of treating or improving cancer using these, Another object of the present invention is to provide a method for quantifying HLA-A2402 constrained cytotoxic T lymphocytes specific for epithelial cancer.
- HLA-A2402 is the most common type of HLA-A in Japanese (over 60%) and is present in about 20% of Europeans.
- HLA-A2402 the most common type of HLA-A in Japanese (over 60%) and is present in about 20% of Europeans.
- a peptide capable of binding to a specific HLA molecule is predicted by a neuroinformatics approach. When measured, the cytotoxic T lymphocytes induced by this predicted peptide often do not actually recognize the antigen containing the peptide.
- the present inventor confirmed that CTL clone power specific to two epitopes' peptides out of the seven predicted peptides was actually HLA- ⁇ 2402-positive ⁇ -CAM It was found that the cancer cells were cytotoxic against the expressed cancer cells but not cytotoxic to the HLA-A2402-negative cancer cells.
- these epitope peptides were treated on the surface of HLA-A2402-positive Ep-CAM-positive cancer cells and presented as antigens.
- these two epitopes' peptides can be used as cancer vaccines for persons carrying HLA-A2402.
- the present invention has been completed based on the above findings, and provides the following epitope peptides and the like.
- Item 1 The following peptide (1), (2), (3) or (4).
- Item 3 A cancer vaccine comprising the peptide according to Item 1 or 2 as an active ingredient.
- Item 4 The cancer vaccine according to Item 3, wherein the cancer is epithelial cancer.
- Cancer is colon cancer, lung cancer, breast cancer, stomach cancer, oral cancer, knee cancer, esophageal cancer, nasopharyngeal cancer, uterine cancer, Item 5.
- the cancer vaccine according to Item 3 or 4 which is a cancer selected from the group consisting of prostate cancer and gallbladder cancer.
- Item 6 The cancer vaccine according to Item 3, 4 or 5 for a human having HLA-A2402 as a leukocyte antigen.
- a cytotoxic T lymphocyte inducer comprising the peptide according to Item 1 or 2 as an active ingredient.
- Item 8 The cytotoxic T lymphocyte inducer according to Item 7, for humans having HLA-A2402 as a leukocyte antigen.
- a gene therapy agent for epithelial cancer comprising the polynucleotide according to Item 9 as an active ingredient.
- a method for producing the peptide according to Item 1 or 2 comprising a step of culturing the transformant according to Item 12 and a step of recovering the peptide according to Item 1 or 2 with culture power.
- Item 14 An antigen-presenting cell pulsed with the peptide according to Item 1 or 2.
- a cancer vaccine comprising the antigen-presenting cell according to Item 14 as an active ingredient.
- Item 16 The cancer vaccine according to Item 15, wherein the cancer is epithelial cancer.
- Cancer is colon cancer, lung cancer, breast cancer, stomach cancer, oral cancer, knee cancer, esophageal cancer, nasopharyngeal cancer, uterine cancer, Item 15.
- a cytotoxic T lymphocyte inducer comprising the antigen-presenting cell according to Item 14 as an active ingredient.
- Item 20 The cytotoxic T lymphocyte inducer according to Item 19, for the treatment of a human having HLA-A2402 as a leukocyte antigen.
- Item 21 A major tissue-matching antigen complex in which the peptide according to Item 1 or 2 or the tumor antigen epitope peptide presented on the antigen-presenting cell according to Item 14 and a major histocompatibility antigen are complexed.
- Item 22 A complex of the peptide according to Item 1 or 2 or the tumor antigen epitope peptide presented on the antigen-presenting cell according to Item 14, an HLA-A2402 molecule, and ⁇ 2 microglobulin 22.
- Item 23 A cancer vaccine comprising the major histocompatibility complex according to item 21 or 22 as an active ingredient.
- Item 24 The cancer vaccine according to Item 23, wherein the cancer is epithelial cancer.
- Item 25 The cancer according to Item 23 or 24, wherein the cancer is selected from the group consisting of colon cancer, lung cancer, breast cancer, stomach cancer, oral cancer, knee cancer, esophageal cancer, nasopharyngeal cancer, uterine cancer, prostate cancer, and gallbladder cancer.
- Item 26 The cancer vaccine according to Item 23, 24 or 25 for the treatment of a human having HLA-2402 as a leukocyte antigen.
- Item 27 An agent for inducing cytotoxic lymphocytes comprising the major histocompatibility complex according to item 21 or 22 as an active ingredient.
- Item 28 The cytotoxic vaginal lymphocyte inducer according to Item 27 for treating a human having HLA-2402 as a leukocyte antigen.
- Item 29 Major tissue suitable for the combination of the tumor antigen epitope peptide presented on the peptide according to Item 1 or 2 or the antigen-presenting cell according to Item 14 and a major histocompatibility antigen Tetramer of combined antigen complex.
- Cytotoxic T lymphocytes obtained by stimulating peripheral blood lymphocytes using any one or more of the following (a) — (d):
- Item 31 A major histocompatibility complex or a conjugate of Z and its tetramer with cytotoxic T lymphocytes by stimulating peripheral blood lymphocytes using any one or more of (a)-(d) above Item 32.
- Item 32 A passive immunotherapeutic agent for cancer comprising the cytotoxic T lymphocyte according to Item 30 or 31 as an active ingredient.
- Item 33 The passive immunotherapeutic agent according to Item 32, wherein the cancer is epithelial cancer.
- Item 34 The cancer according to Item 32 or 33, wherein the cancer is selected from the group consisting of colon cancer, lung cancer, breast cancer, stomach cancer, oral cancer, knee cancer, esophageal cancer, nasopharyngeal cancer, uterine cancer, prostate cancer, and gallbladder cancer. Passive immunotherapy agent.
- Item 35 The passive immunotherapeutic agent according to Item 32, 33 or 34 for a human having HLA-A2402 as a leukocyte antigen.
- Item 36 A step of causing any of the following (a) — (d) to act on peripheral blood:
- a method for quantifying HLA-A2402-restricted cytotoxic T lymphocytes in peripheral blood comprising the step of quantifying cytotoxic T cells in the peripheral blood or cytodynamic force produced by the cells.
- Item 37 A method for treating or improving cancer, comprising administering one or more of the following (a) to (d) to a human having HLA-A2402 as a leukocyte antigen. (a) The peptide according to item 1 or 2
- Item 38 Collecting a mononuclear cell fraction from human peripheral blood having HLA-A2402 as a leukocyte antigen
- a method for treating or improving cancer comprising the steps of:
- Item 39 A method for inducing cytotoxic T lymphocytes, wherein one or more of the following (a) — (d) is administered to a human having HLA-A2402 as a leukocyte antigen:
- Item 40 A method for treating or improving cancer, comprising administering the cytotoxic T lymphocyte according to Item 30 or 31 to a human having HLA-A2402 as a leukocyte antigen.
- Item 41 A tetramer of a complex of the peptide according to Item 1 or 2 or the tumor antigen epitope peptide presented on the antigen-presenting cell according to Item 14, an HLA-A2402 molecule, and ⁇ 2 microglobulin. 24. A tetramer of a major histocompatibility complex according to item 21.
- Item 43 The cancer vaccine according to Item 42, wherein the cancer is epithelial cancer.
- Item 44. The cancer according to Item 42 or 43, wherein the cancer is a cancer selected from the group consisting of colon cancer, lung cancer, breast cancer, stomach cancer, oral cancer, knee cancer, esophageal cancer, nasopharyngeal cancer, uterine cancer, prostate cancer, and gallbladder cancer.
- Item 45. The cancer vaccine according to Item 42, 43 or 44 for treating a human having HLA-A2402 as a leukocyte antigen.
- a cytotoxic T lymphocyte inducer comprising the tetramer of the major histocompatibility complex according to Item 41 as an active ingredient.
- Item 47 The cytotoxic T lymphocyte inducer according to Item 46, for the treatment of human having HLA-A2402 as a leukocyte antigen.
- an Ep-CAM molecule epitope 'peptide widely expressed in epithelial cancer cells which is frequently observed as a type of leukocyte antigen in Japanese, is HLA-A2402-restricted cytotoxicity. What was recognized by sex T lymphocytes was provided. Therefore, this epitope peptide can be used as a cancer vaccine against a wide range of human epithelial cancers with HLA-A2402.
- FIG. 1 is a graph showing the results of evaluation of polyclonal peptide activity CTL cell lines by Elispot'Atsuy.
- FIG. 2 shows the results of tetramer staining of Ep-CAM peptide-specific polyclonal (A) and clonal (B) CTLs.
- Fig. 3 shows the results of characterization of Ep 173-specific CTL clones.
- FIG. A is a drawing of a 51 Cr release assay showing the cytotoxicity results of C27, Ep 173 specific CTL clones against peptide Epl73 and control peptide EBV-LMP419 T2-A24 cells.
- FIG. B shows the inhibitory effect of anti-HLA-A24 monoclonal antibody on cytotoxicity of HLA-A2402-positive cell line, Epl73-specific CTL clone against PC9, and C27.
- Figure C shows C27 cells by Epl73 in cold target inhibition activity. It is drawing which shows injury property.
- FIG. 4 is a drawing showing the results of Ep-CAM PCR analysis.
- FIG. 5 is a drawing showing cytotoxicity of C27 and Epl73-specific CTL clones against various cancer cell lines.
- the peptide of the present invention comprises 9 to 10 amino acid-powered epitope peptides having the binding motif of HLA-A2402 for the amino acid sequence of Ep-CAM protein that is widely expressed in cancer derived from epithelial cells.
- a searchable collation medium the World Wide Web site.
- Bioinformatics & Molecular Analysis Section (BIMAS) HLA Peptide Binding Predictions (BIMAS)
- the peptide of the present invention is the following peptide (1), (2), (3) or (4).
- the peptide means an amino acid molecular chain in which the ⁇ -amino group and carboxyl group of adjacent amino acid residues are bonded to each other by a peptide bond and has physiological activity.
- the peptide includes a salt or derivative thereof as long as the physiological activity is not impaired. Derivatives include those that are glycosylated, amidated, phosphorylated, force-boxylated, phosphorylated, formylated, acylated, and the like.
- an acid addition salt is preferable. Examples of the acid addition salt include salts with inorganic acids such as hydrochloric acid, phosphoric acid, and sulfuric acid, and salts with organic acids such as formic acid, acetic acid, propionic acid, and tartaric acid.
- Each peptide of (4) is an Ep-CAM epitope peptide that is widely expressed in cancer cells derived from epithelial cells, and is recognized by or bound to HLA-A2402-restricted CTL. Or can further activate CTL. Therefore, it can be suitably used as a tumor antigen that induces or activates CTL, that is, as a cancer vaccine, for the treatment or amelioration of human cancer having HLA-A2402.
- These peptides can also be used for the production of various peptides that specify tumor antigen epitopes. The use of the peptide of the present invention will be described in detail later.
- the lower limit of the number of amino acids in the mutant peptides (3) and (4) is usually about 5, preferably about 7.
- the upper limit of the number of amino acids is not particularly limited as long as it is recognized by HLA-A2402-restricted CTL, but is usually about 12. Among them, a variant peptide having about 9 to 11 amino acids is preferable.
- mutant peptides were designed to match the HLA-A2402 binding motif by, for example, matching with the above-mentioned HLA Peptide Binding Prediction, and from that, HLA-A2402-restricted CTL was actually used. It can be obtained by selecting one that is recognized or induces it.
- Whether or not it is an HLA-A2402-positive Ep-CAM epitope 'peptide can be determined, for example, by the following method.
- Epitope candidate peptide stimulates epithelial cancer-specific CTL induced in this way Elispot Atssey (Kuzushima K et al., The Journal of Clinical
- the candidate peptide is a peptide that is synthesized by synthesizing a peptide library consisting of about 20 amino acids covering the entire Ep-CAM protein, and performing the above-mentioned elicitation assay on the synthesized peptide and reacting with CTL.
- the peptide having about 9 to 10 amino acids can be used as the epitopic peptide of the present invention.
- the peptide of the present invention can be used in the form of a complex to which sugars, polyethylene glycol, lipids and the like are added, a derivative or a polymer by a radioisotope, and the like.
- the polynucleotide of the present invention is a polynucleotide encoding the peptide of the present invention, and specifically, the following polynucleotide (5), (6), (7) or (8).
- the polynucleotide of the present invention includes both DNA and RNA unless otherwise specified.
- DNA includes cDNA, genomic DNA, and synthetic DNA.
- RNA includes mRNA, rRNA and synthetic RNA are included.
- a complementary polynucleotide and a double-stranded polynucleotide are also included.
- the 11 nucleotide sequence polynucleotide is obtained from the human cancer-related antigen GA733-2 (Szala, S., et. Al., Proc. Natl. Acad. Sci. USA 87 (9), 3542-3546 (1990).
- Ep partial sequence of the CAM gene.
- the mutant polynucleotide of (7) or (8) is usually 15 or more, preferably 21 or more, and usually 45 or less nucleotides corresponding to the region encoding the epitope peptide of the present invention. As long as it becomes. Among these, a polynucleotide having about 27 to 33 nucleotides is preferable.
- a "DNA molecule that hybridizes under stringent conditions to a DNA molecule” is, for example, Molecular Cloning: A Laboratory Manual (Sambrook, et al., Edited by Cornoledo 'Spring'). (Norno 'Laboratory' Press, Cold 'Spring' Nober, New York, 1989).
- the conditions of “noblate under stringent conditions” include, for example, heating at 42 ° C. in a solution of 6 X SSC, 0.5% SDS and 50% formamide, and then 0.1.
- An example is the condition under which a positive hydride signal is observed when washed at 68 ° C in a solution of X SSC, 0.5% SDS.
- mutant polynucleotide of (7) or (8) for example, a peptide expressed in cells having HLA-A2402 using a known protein expression system will be described later. It may be selected by confirming that it can be recognized by CTL or has the ability to induce CTL.
- the mutant polynucleotide has a poly (A) structure at its end, and the number of poly (A) does not affect the coding site of the amino acid acting as a tumor antigen.
- the number of poly (A) possessed by the nucleotide is not particularly limited! /.
- the polynucleotide of the present invention provides gene information useful in producing the epitope peptide of the present invention using recombinant technology. Nucleic acid reagents or standards It can also be used as a product.
- the recombinant vector of the present invention is a recombinant vector obtained by incorporating the polynucleotide of the present invention into an appropriate vector DNA.
- the vector DNA may be appropriately selected depending on the type of host and intended use.
- the vector DNA may be a naturally occurring DNA or a DNA lacking a part of the DNA other than the part necessary for propagation from the natural DNA.
- Examples of the vector DNA include vectors derived from chromosomes, episomes or viruses.
- bacterial plasmid, nocterophage, transposon, yeast episome, insertion element, yeast chromosomal element, virus for example, baculovirus, papovavirus, SV 40, vaccinia virus, adenovirus, fowlpox virus, Vectors derived from pseudorabies virus, retrovirus, etc.
- virus for example, baculovirus, papovavirus, SV 40, vaccinia virus, adenovirus, fowlpox virus, Vectors derived from pseudorabies virus, retrovirus, etc.
- vectors combining them for example, plasmids, and vectors derived from genetic elements of butteriophage (for example, cosmids and phagemids).
- an expression vector or a cloning vector may be used.
- a recombinant vector is composed of a target gene sequence and a gene sequence that bears information on replication and control, such as a promoter, a ribosome binding site, a terminator, a signal sequence, an enhancer, and the like. Produced by combining by methods c
- the polynucleotide of the present invention may be inserted into the vector DNA by a known method.
- DNA and vector DNA can be cleaved at a specific site using an appropriate restriction enzyme, mixed and religated by ligase.
- a recombinant vector can also be obtained by ligating a suitable linker to the polynucleotide of the present invention and inserting it into a multicloning site of a vector DNA suitable for the purpose.
- a recombinant vector in which the above polynucleotide is incorporated is used as a known host, for example, a bacterium such as E. coli (for example, ⁇ 12), a bacterium belonging to the genus Bacillus (for example, MI114), yeast (for example, AH22), insect cells (for example, SUB cells) or animal cells (for example, COS-7 cells, Vero cells, CHO cells, etc.) are obtained by known methods to obtain the transformant of the present invention.
- a bacterium such as E. coli (for example, ⁇ 12), a bacterium belonging to the genus Bacillus (for example, MI114), yeast (for example, AH22), insect cells (for example, SUB cells) or animal cells (for example, COS-7 cells, Vero cells, CHO cells, etc.) are obtained by known methods to obtain the transformant of the present invention.
- an integration method into a chromosome is preferable in consideration of gene stability.
- an autonomous replication system using an extranuclear gene can be used.
- Vector DNA can be introduced into host cells by, for example, Molecular Cloning: A Laboratory Manual (edited by Sambrook, et al., Cornedo 'Spring' November 'Laboratory' Press, Cold Spring Nover, New York, 1989). This can be done by the standard methods described. Specifically, calcium phosphate transfection, DEAE-dextran mediated transfection, microinjection, cationic fat mediated transfection, electoral position, transduction, scrape loading, ballistic introduction ) And infection etc.
- the peptide of the present invention can be synthesized by a known peptide synthesis method such as solid phase peptide synthesis.
- a known peptide synthesis method such as solid phase peptide synthesis.
- Examples of such peptide synthesis methods include the method described in “Peptide Synthesis” (Maruzen; published in 1975) or Peptide Synthesis, Interscience, New York, (1996).
- it can also be produced using a known chemical synthesizer such as a peptide synthesizer manufactured by Applied Systems.
- the peptide of the present invention can also be produced by a method comprising the step of culturing the transformant of the present invention described above and the step of recovering the culture strength of the peptide of the present invention.
- Culture may be performed by subculture or batch culture using a medium suitable for the host.
- an appropriate amount of the peptide of the present invention can be obtained by using as an index the amount of peptide produced inside or outside the transformant and the CTL inducing ability which is one of the actions of the peptide of the present invention produced by the transformant. Go up.
- Purification includes molecular sieve chromatography, ion exchange chromatography, It may be carried out by a known method in combination with chromatography such as Phy, etc., or fractionation means based on solubility difference using ammonium sulfate or alcohol. Purification may be carried out using as an index the recognition of this peptide by CTL or the induction of CTL, specifically, for example, the amount of IFN- ⁇ produced by CTL.
- the peptide of the present invention in the culture is specifically adsorbed and recovered. You can also
- the antigen-presenting cell of the present invention is a cell obtained by pulsing the peptide of the present invention to an antigen-presenting cell such as a rod-shaped cell, macrophage, or sputum lymphocyte.
- the antigen-presenting cell in the present invention is a cell capable of expressing on its surface an HLA that binds to the peptide of the present invention, and has a CTL stimulating ability.
- Pulse includes, but is not limited to, for example, these antigen-presenting cells in a medium containing the peptide of the present invention at a concentration of about 10 gZml at a temperature of about 20-30 ° C for 30 minutes. It can be done by incubating for about 1 hour. This presents a tumor antigen peptide that can be recognized by HLA-A2402-restricted CTL on the surface of the antigen-presenting cell.
- Tumor antigen means a protein, polypeptide or peptide that can be recognized by tumor-specific CTLs, or that can further induce CTLs or activate Z and CTLs, which are possessed by tumor cells.
- a tumor antigen peptide is a peptide that is generated when this tumor antigen is degraded in tumor cells, and is recognized by CTL by binding to HLA molecules and presented on the cell surface, and induces CTL or Z And a peptide capable of activating CTL.
- an amino acid sequence portion of a tumor antigen which is recognized by a tumor-specific CTL, or further an epitope sequence capable of inducing or activating CTL is a tumor antigen epitope (determining tumor antigen Group).
- CTL recognizes tumor cells or tumor antigen epitopes as peptides. It means that CTL binds to sphere antigen (HLA) and tumor antigen peptide via T cell receptor.
- HLA sphere antigen
- CTL activate means to further enhance or actuate a substance having a certain activity or action or its state.
- CTL is active means that CTL recognizes an epitope peptide presented by HLA, for example, produces an effector such as IFN- ⁇ , or a target recognized by CTL. It means to show cytotoxicity to cells.
- inducing means that an activity or action is generated from something or a state that has little activity or action.
- inducing antigen-specific CTL means differentiation, selection or proliferation of CTL that specifically recognizes an antigen in vitro or in vivo.
- Antigen-presenting cells pulsed with the epitope peptide of the present invention can be used as a cancer vaccine. It can also be used for the production of epithelial cancer-specific CTL, the quantification of epithelial cancer-specific CTL in human peripheral blood, and the like.
- the major histocompatibility antigen complex of the present invention is a complex of the major histocompatibility antigen and the tumor antigen epitope peptide displayed on the surface of the antigen-presenting cell pulsed with the peptide of the present invention or the peptide of the present invention.
- the major histocompatibility antigen is a molecule that presents a peptide recognized by the lymphocyte to the lymphocyte antigen receptor, and is recognized by the CTL together with the epitope 'peptide.
- Leukocyte antigen (HLA) Leukocyte antigen
- MHC major histocompatibility complex
- HLA human leukocyte antigen
- the CTL epitope 'peptide specific to Ep-CAM is a peptide that occupies a specific site in Ep-CAM protein, and is recognized by CTL and is immunologically linked to CTL antigen receptor. Refers to an antigenic determinant that binds to Furthermore, CTL epitopes' peptides can eliminate cancer cells by directly damaging cells that express Ep-CAM molecules.
- the MHC of the present invention is particularly a complex in which an HLA-A2402 molecule expressed on a target cell is bound to a specific epitope 'peptide in an Ep-CAM protein that can be recognized by CTL, or further It refers to a complex with ⁇ 2 microglobulin bound.
- HLA- H2402 refers to the '24 polymorphism that is a sub-class of class I antigen among human leukocyte antigens
- HLA- ⁇ 2402 molecule refers to the gene of HLA- ⁇ 2402. ⁇ ⁇ Expression products on the surface of antigen-presenting cells.
- HLA- ⁇ 2402 molecule includes HLA- ⁇ 2402 molecule purified from E. coli culture for expression of HLA- ⁇ 2402, HLA- ⁇ 2402 molecule, target expressed by gene transfer into target cells Any of HLA— ⁇ 2402 molecule, etc. that are naturally expressed on the cells can be used.
- the HLA-LA2402 molecule of the present invention also includes a fragment of HLA- ⁇ 2402 molecule and the heavy chain of HLA- ⁇ 2402 molecule.
- the MHC of the present invention can be produced by various methods depending on its constituents.
- the peptide of the present invention, HLA-—2402 molecule and j82 microglobulin are suspended in a buffer such as Tris, and the temperature is 4 It can be formed by incubating at about 10 ° C for about 24 to 72 hours.
- MHC may be a tetramer! / ⁇ .
- the MHC tetramer is a complex complex of an Ep-CAM epitope 'peptide that can be recognized by CTL and an HLA-A2402 molecule (usually an HLA-A2402 molecule bound with j82 microglobulin).
- the MHC tetramer can be obtained by piotination of MHC and mixing 1: 4 with strepteptavidin and the piotinated complex.
- a Piotin binding site was added to the C-terminus of the HLA molecule in advance, and after MHC formation, Piotin was bound to this site, and streptavidin and Pyotinylated MHC were mixed 1: 4. Can also be obtained.
- an MHC tetramer can be prepared as follows.
- MHC a large amount of HLA-A2402 heavy chain and j82 microglobulin are prepared and purified using a recombinant protein expression system using E. coli.
- the amino acid sequence recognized by piotin ligase is added to the C-terminus of HLA A2402 heavy chain in advance. deep. Dissolve the purified HLA-A2402 heavy chain and
- the amino acid sequence represented by SEQ ID NO: 1 in 200 ml of refolding buffer (pH 8.0; lOOmM Tris-HC1, 400 mM L-arginine—HC1, 2 mM EDTA, 0.5 mM oxidative glutathione, 5 mM reduced glutathione)
- refolding buffer pH 8.0; lOOmM Tris-HC1, 400 mM L-arginine—HC1, 2 mM EDTA, 0.5 mM oxidative glutathione, 5 mM reduced glutathione
- the refolding buffer containing MHC was kept at 4 ° C for 24 hours in 1.8 L of distilled water. Dialyze in the tank and concentrate the refolding buffer after dialysis to 2 ml using Centriprep 10 (MILLIPORE, Bedford, MA). Isolate the MHC that flows out at a molecular weight of about 45 KD by gel filtration chromatography using 7 hum of Superaex 200 HR (Amersham Pharmacia Biotech AB, Uppsala, 3 ⁇ 4weden). By force, the desired MHC tetramer can be produced.
- piotin is bound to a specific site of the CLA terminal of the HLA-A2402 heavy chain using piotin ligase (AVIDITY, Denver, CO). Purify MHC with piotin by gel filtration chromatography using a Superdex 200 HR column.
- PE-labeled streptavidin (Molecular Probe, Eugene, OR) and purified piotinylated MHC were mixed at a molar ratio of 1: 4, and the molecular weight was reduced to about 480 KD by gel filtration chromatography using a Superdex 200 HR column.
- the MHC tetramer containing the amino acid sequence (R YQLDPKFI) represented by SEQ ID NO: 1 flowing out is isolated. Concentrate to approximately 3 mgZml using Centricon 10 (MILLIPORE) and store at 4 ° C. As preservatives, sodium azide, EDTA, leupeptin, and pepstatin may be added.
- the MHC of the present invention can be used as a cancer vaccine. It can also be used for the production of CTL specific for epithelial cancer and the quantification of CTL specific for epithelial cancer in human peripheral blood.
- Cancer vaccine 'CTL inducer The peptide of the present invention can be suitably used as an active ingredient of a cancer vaccine used for active immune vaccine therapy.
- This cancer vaccine can be used for humans with HLA-A2402.
- HLA-A2402-restricted CTL that specifically recognizes Ep-CAM is induced or activated.
- epithelial cancer and the like can be treated or improved.
- CTL in cancer patients is a population of cells that recognize multiple tumor antigens
- one type of epitope 'peptide can be used as a cancer vaccine to combine more types of epitopes' peptides with cancer. A higher effect may be obtained when used as a vaccine. Therefore, the peptides of the present invention can be used singly or in combination of multiple types (plural types).
- the mRNA of Ep-CAM containing the peptide of the present invention is expressed in lung cancer cell lines (QG56, LU99, LC99A, LCI sq, LC65A, and PC-9), colon cancer cell lines, gastric cancer cell lines (MKN28, MKN45). ), Oral cancer cell line (HSC-2), breast cancer cell line and leukemia cell line (K562).
- lung cancer cell lines QG56, LU99, LC99A, LCI sq, LC65A, and PC-9
- colon cancer cell lines gastric cancer cell lines (MKN28, MKN45).
- breast cancer cell line and leukemia cell line K562
- expression of Ep-CAM was also observed in various tissues derived from lung cancer, colon cancer, stomach cancer, breast cancer and oral cancer patients. Therefore, the peptide of the present invention is useful for the treatment or improvement of these cancers.
- the peptide of the present invention can be formulated alone or together with various carriers.
- the dosage form may be an oral administration agent or a parenteral administration agent.
- parenteral agents are preferred. Examples of parenteral agents include subcutaneous injections, intramuscular injections, intravenous injections, and suppositories.
- a preparation may be prepared together with excipients such as polymerized amino acid and albumin.
- the peptides of the present invention can be used in neutral or salt form.
- the pharmaceutically acceptable salt include salts of inorganic acids such as hydrochloric acid and phosphoric acid, and salts of organic acids such as acetic acid and tartaric acid.
- the peptide of the present invention is formulated with a compound that interacts with itself or HLA-A2402 to enhance recognition of this peptide by CTL, or an antibody that immunologically recognizes this peptide.
- the activity can be regulated.
- Antigen-presenting cells and major histocompatibility antigen complexes pulsed with the peptide of the present invention can also be suitably used as cancer vaccines in the same manner.
- the dosage form, administration target, applicable cancer type, effect, etc. are the same as those of the cancer vaccine having the peptide ability of the present invention.
- the peptide of the present invention, antigen-presenting cell, and major histocompatibility antigen complex are each induced to induce Ep-CAM-specific HLA-A2402-restricted CTL by administration to a human having HLA-A2402 as a leukocyte antigen.
- Epithelial cancer can be treated or improved through active activity.
- the dose of the peptide of the present invention varies depending on the degree of recognition of this peptide by CTL, but for human adults, an active epitope 'peptide main body, for example, about 0. Olmg-lOOmgZ days, Preferably, it may be administered at about 0.1 mg to 30 mg Z days.
- the administration interval may be appropriately determined according to the patient and the purpose of administration.
- a mononuclear cell fraction is collected from the peripheral blood of a patient, cultured with the peptide of the present invention, and the mononuclear cell fraction in which CTL is induced and Z or activated is obtained from the patient's blood.
- An effective cancer vaccine effect can also be obtained by returning to the inside.
- Culture conditions such as the concentration of mononuclear cells at the time of culture and the concentration of the peptide of the present invention may be determined so that about 10 8 -10 1 G cells / day can be administered to human adults. These conditions can be easily determined by simple experiments.
- a substance having lymphocyte proliferation ability such as interleukin 2 may be added during the culture.
- the antigen-presenting cells are, for example, about 10 6 to 10 9 Z days, preferably about human adults. io 7 — io 8 doses should be administered for about Z days.
- An effective cancer vaccine effect can also be obtained by co-culturing the mononuclear cell fraction collected from the patient's peripheral blood and the antigen-presenting cells of the present invention and returning them to the patient's blood.
- the major histocompatibility antigen complex may be administered to a human adult, for example, about 1 lOOmgZ day, preferably about 5-50 mgZ day.
- An effective cancer vaccine effect can also be obtained by co-culturing the mononuclear cell fraction collected from the patient's peripheral blood and the major histocompatibility antigen complex of the present invention and returning it to the patient's blood. .
- polynucleotide-complement chain of the present invention is useful as a gene therapy agent for lung cancer, colon cancer, stomach cancer, breast cancer, oral cancer and the like.
- the polynucleotide of the present invention may be carried on a vector and directly introduced into the body, or cells may be collected from a human and introduced into the body and then returned to the body.
- a vector it is recommended to use a retrovirus that can be used without limitation for those known to be used for gene therapy such as retrovirus, adenovirus, and vaccinia virus. These viruses are replication-defective.
- polynucleotide of the present invention can be introduced into cells by using a microindication that encapsulates the ribosome for delivery.
- the gene therapy agent for cancer of the present invention includes a polynucleotide of the present invention alone, a recombinant vector containing the polynucleotide of the present invention, and a ribosome encapsulating the polynucleotide of the present invention. It may be in the form of
- the dosage of the polynucleotide of the present invention varies depending on the degree of recognition of the peptide encoded by the polynucleotide by CTL.
- the content of the polynucleotide moiety encoding the epitope 'peptide of the present invention is: For example, it may be about 0.1 ⁇ g—lOOmgZ days, preferably about 1 ⁇ g—50 mgZ days. This dose should be administered once every few days to several months.
- the polynucleotide of the present invention can be used in combination with a site force-in such as IL2, or a substance that interacts with the polynucleotide of the present invention to enhance its expression.
- a site force-in such as IL2
- a substance that interacts with the polynucleotide of the present invention to enhance its expression IL2
- the cytotoxic vaginal lymphocyte of the present invention is obtained by stimulating peripheral blood lymphocytes using any one or more of the following (a) to (d).
- peripheral blood lymphocytes are cultured for about 7 to 14 days at a temperature of about 37 ° C in an RPMI1640 medium containing human serum, preferably with any one of the above (a) to (d). It is induced by this.
- MHC major histocompatibility complex
- CTLs are induced to bind to them. Therefore, CTL may be separated from MHC or its tetramer by an appropriate method.
- CTL can be obtained, for example, by the following preparation method.
- lymphocytes separated from peripheral blood are combined with the peptide of the present invention or antigen-presenting cells pulsed with this peptide at about 37 ° C in a carbon dioxide incubator. 7—Incubate for about 10 days. Subsequently, CTL is stimulated and proliferated by adding IL 2, PHA, anti-CD3 antibody, etc., and incubating for about 7 to 14 days.
- the CTL specific for epithelial cancer thus obtained can be suspended in, for example, human albumin-containing PBS, and used as a passive immunotherapy for epithelial cancer.
- the dosage form of the passive immunotherapeutic agent is usually an intramuscular injection, subcutaneous injection, intravenous injection or the like.
- the stained CT L is isolated using a flow cytometer or a microscope.
- lymphocytes that have also been separated from peripheral blood force in the flask and solid-phased MHC or its tetramer are mixed at a temperature of about 25 ° C. React for about a minute.
- CTL specific for epithelial cancer remaining on the plate is suspended in a new culture medium.
- CTL specific for epithelial cancer isolated in this way is necessary for use as a passive immunotherapeutic agent by stimulating with anti-CD3 antibodies, PHA, IL-2 and other T cell stimulating agents. Let it grow to the number of cells.
- MHC-magnetic beads a conjugate
- lymphocytes are separated from peripheral blood, etc., and MHC magnetic beads having an appropriate concentration are added thereto so that the lymphocyte: bead ratio is about 1: 5-20.
- CTL specific for epithelial cancer isolated in this way is necessary for use as a passive immunotherapeutic agent by stimulating with T lymphocyte stimulating drugs such as anti-CD3 antibody, PHA, IL 2 etc. Let it grow to the number of cells.
- the CTL of the present invention can treat or improve cancer by being administered as a passive immunotherapeutic agent to patients with epithelial cancer.
- the dose varies depending patient and purpose of administration, to a human adult, for example, 10 7 - 10 1 1 / day, preferably about 10 8 - may be the io 1G pieces / day or so. This amount may be administered once every few days to several months.
- CTL specific for epithelial cancer is a high-risk patient for cancer (such as those with reduced immune capacity due to some cause derived from cancer cells or tissue, patients with complications, elderly, young children, pregnant women, etc. ) Is important for cancer treatment management including proper use of anticancer drugs and chemotherapeutic agents. Quantification of HLA-A2402-restricted CTL specific for epithelial cancer can be performed by the following method.
- the method comprises a step of causing any of the following (a) to (d) to act on peripheral blood, and a step of quantifying CTL in peripheral blood or the cytodynamic force produced by the peripheral blood.
- the HLA-A2402-restricted CTL concentration in the test peripheral blood can be calculated by comparing the obtained value with the quantitative value obtained in the same manner using an HLA-A2402-restricted CTL solution with a known concentration. .
- Examples of the method for quantifying HLA-A2402-restricted CTL induced by any of the above (a)-(d) or the site force-in produced by it include the following methods.
- Stimulation of lymphocytes isolated from peripheral blood with the peptide of the present invention and the number of CTLs induced by the lymphocytes or the amount of site force-in (including chemokines) such as interferon ⁇ (lFN- ⁇ ) and interleukins produced by it Can be quantified.
- site force-in including chemokines
- IFN- ⁇ interferon ⁇
- Peripheral blood force also the separated lymphocytes were suspended in RPMI1640 medium containing 10% human serum at a cell concentration of 2xl0 6 / ml, added CTL Epitopu 'peptides of the present invention at a concentration of 1 ⁇ gZml
- CTL Epitopu 'peptides of the present invention at a concentration of 1 ⁇ gZml
- Brefeldin A an intracellular protein transport inhibitor
- the cells are fixed, subjected to membrane permeabilization, and reacted with a dye-labeled anti-IFN- ⁇ antibody. Quantify IFN- ⁇ positive cells in CD8 positive lymphocytes using a flow cytometer.
- labeled CD8 positive cells can be quantified by using an anti-CD8 antibody instead of the dye-labeled anti-IFN- ⁇ antibody. Quantification of site power in (Eli Spot Atsey)>
- a 96-well MultiScreen-- plate (Mil lipore) is coated with anti-IFN- ⁇ monoclonal antibody at 4 ° C, and each well is washed with PBS. Then, lymphocytes separated from peripheral blood are spread on each well. Epitope 'Peptide in each well 20% in a 37 ° C 5% CO incubator 20
- Peripheral blood force also the separated lymphocytes were suspended in RPMI1640 medium containing 10% human serum at a cell concentration of 2xl0 6 / ml, Ru added CTL Epitopu 'peptides of the present invention at a concentration of 1 ⁇ gZml. Incubate for 24-48 hours at 37 ° C in a carbon dioxide oven. After incubation, the supernatant is collected, and the IFN-y concentration contained therein is quantified using a commercially available ELISA kit (for example, HUMAN IFN gamma ELISA from ENDOGEN).
- a commercially available ELISA kit for example, HUMAN IFN gamma ELISA from ENDOGEN.
- Lymphocytes are also separated from force such as peripheral blood, and reacted with MHC tetramer (streptavidin fluorescently labeled) with a concentration of about 100 / z gZml for 15 minutes at 37 ° C.
- CTL that binds to MHC is stained by adding another fluorescently labeled antibody that binds to CTL that binds to MHC to the reaction solution.
- Stained CTLs are flow cytometer or microscopic Count with a micro-mirror.
- peripheral blood mononuclear cells PBMCs
- Human lung cancer cell line large cell carcinoma LU990CRB0080) cell; human squamous cell carcinoma HSC-2QCRB0622) cell; human gastric cancer cell line squamous cell carcinoma MKN28 (JCRB0253) cell, M KN45QCRB0254) cell; and human colon
- the cancer cell line squamous cell carcinoma COLO320DM OCRB0225 or ATCC: CCL-220) cells) was purchased from JCRB Cell Bank (Ministry of Health, Labor and Welfare: http://Cellbank.nihs.go.jp/).
- Squamous cell carcinoma LC-1 / sq (RCB0455) a human lung cancer cell line, was purchased from RIKEN Cell Bank.
- LCZsq cells were prepared by adding 45% RPMI1640 medium (Sigma) supplemented with a nutritional supplement containing 10% FCS, L-glutamine, penicillin, streptomycin, and strength namycin, and 45% Ham'sF12 (Sigma). ) Maintained in. COLO320DM cells and MKN28 were maintained in DMEM medium (Sigma). K562 cells were maintained in IMDM medium (Sigma) supplemented with nutritional supplements containing 10% FCS (Ushi Fetal Serum: Life Technologies), L-glutamine, penicillin, streptomycin, and kanamycin.
- FCS Ushi Fetal Serum: Life Technologies
- T2 (hereinafter referred to as “ ⁇ 2 cell”) was designated as HLA-A.
- Cells expressing the HLA-A2402 binding peptide (hereinafter referred to as “T2-24 cells”) were obtained by introducing the 2402 gene.
- T2-24 cells were cultured in IMDM medium (Iscove's modified Dulbecco's medium) supplemented with 10% fetal bovine serum, L-glutamine, penicillin, streptomycin, G418 (Gibconnet).
- IMDM medium Iscove's modified Dulbecco's medium
- HLA-A2402 coded retroviruses were isolated from QG56 HLA-A2402-negative cell line and A549 (JCRB0076) HLA. — Infected with A2402-negative cell line.
- infected QG56 cells were maintained in complete medium containing a final concentration of 0.6 gZml of puromycin and designated QG56-A24.
- infected A549 was maintained in complete medium containing a final concentration of 0.9 ⁇ g Zml puromycin and designated A549-A24.
- HLA—A240 2-binding peptides within the Ep—CAM protein accession number: M33011
- the World 'Wide' Website 'Bioinformatics & Molecular Analysis section BIMAS: BioInfomatics and molecular analysis section
- Ep31 The seven peptides synthesized were named as Ep31, Epl73, Epl85, Ep250, Ep225, Ep296, and Ep304.
- Ep31 The seven peptide sequence of the synthesized Ep-CAM is shown in Table 1.
- HIV-l human immunodeficiency virus l envelope.
- HLA—A2402 molecule Using HLA—A2402 monoclonal antibody (One Lambda, Inc.) and FITC-labeled anti-mouse IgG (a) fragment (Imnotech)
- the indirect immunofluorescence antibody method was used.
- the MHCZ peptide 'tetramer was produced according to the method described in the literature (Blood, 98: 1872-1881,2001, Science, 274: 94-96,1996).
- CD8 positive T cell line or clone is Ep-CAM peptide, Epl73 (referred to as HLA-A2402 / E pl73 tetramer) or HIV-1 peptide, ENV584 (HLA-A2402 / EN V584 tetramer) was taken in! / And stained with phycoerythrin (PE) labeled HLA-A2402 tetramer.
- Ep-CAM peptide Epl73
- E pl73 tetramer HIV-1 peptide
- ENV584 HLA-A2402 / EN V584 tetramer
- T2- A24 cells (2xl0 5 cells) of 0. 1% FCS, 5x10- 5 M j8- 200 ⁇ L RPMI1640 medium containing mercaptoethanol and 10 mu concentration 26 ° to each peptide at C of ⁇ Incubated for 16 hours. The mixture was further incubated at 37 ° C for 3 hours. After incubation, cell surface HLA-A2402 molecules were stained with anti-HLA-A2402 monoclonal antibody and FITC-labeled antibody (3) above. Expression was measured by FACSCalibur and the mean fluorescence intensity (MFI) was recorded.
- MFI mean fluorescence intensity
- % MIF increase ⁇ (MIF in peptide-treated group-MIF in non-peptide-treated group) Z (MIF in non-peptide-treated group)
- peptide ⁇ 173 (RYQLDPKFI) showed the highest degree of affinity with HLA- ⁇ 2402 molecule. Since Ep304 (EMGEMHREL) showed the lowest affinity, further experimental power was eliminated.
- Peripheral blood monocyte-derived rod cells were produced according to the method of Dauer et al. (J. Immunono 70: 4069-4076). [0121] That is, cells adhering to plastic were isolated from peripheral blood mononuclear cells of HLA-A2402-positive healthy volunteers, 5% heat-inactivated human serum, ⁇ / z gZmL recombinant human 'interleukin 4 (hIL —4: manufactured by R & D Systems) and 50 ngZmL recombinant human “condylar granule macrophage” colony stimulating factor (hGM—CSF: manufactured by R & D Systems) were cultured in RPMI 1640 medium.
- hIL —4 human 'interleukin 4
- hGM—CSF human “condylar granule macrophage” colony stimulating factor
- the cells produced appeared to express dendritic cell-associated antigens such as CDla, CD80, CD83, CD86, HLA class II molecules.
- CD8 positive T lymphocytes were isolated from the same donor with the help of CD8 microbeads (Milteny Biotec).
- rod-shaped cells ( 5 lxlO) were obtained from 10% human serum, 25 ng ZmL recombinant human IL-7 (R & D Systems), 5 ng / mL recombinant human IL-12 (R & D Systems).
- rod-shaped cells ( 6 lxlO) in RPMI1640 medium supplemented with
- T cells [0127] The specificity of T cells was tested by Elispot Atsey.
- a flat bottom 96-well Multiscreen-HA plate (Millipore) with a nitrocellulose membrane was coated with 10 ⁇ gZmL of anti-IFN- ⁇ monoclonal antibody (R & D Systems), and the mixture was decanted at 4 ° C. After washing with PBS (phosphate buffered saline), the plate was blocked with culture medium at 37 ° C for 1 hour.
- T2—A24 cells ( 4 x 5xl0) were placed in 100 L RPMI1640 medium with 0.1% FCS and 5xl0 5 M j8-mercaptoethanol in each well of the plate for 30 minutes at room temperature! The epitope candidate synthetic peptide was pulsed.
- a total of 5 lxlO polyclonal CD8 positive T cells suspended in culture medium supplemented with concentrated FCS to a concentration of 20% was added to each well.
- Figure 1 shows the results of Ellislot 'Athesi, the result of stimulating 5 HLA- ⁇ 2402-positive healthy donor CD8 positive ⁇ cells with autologous rod cells pulsed with each of the 6 peptides.
- Polyclonal 'peptide activity ⁇ shows cytotoxic lymphocyte cell line evaluation.
- IFN- ⁇ spots were specifically produced when incubated with Ep250-stimulated CTL strain Ep250 from donor number 3.
- Fig. 2 shows the results of tetramer staining of ⁇ -CAM peptide-specific polyclonal and monoclonal CTL.
- a in Figure 2 shows that the polyclonal CD8-positive T cells stimulated with Epl73 four times are loaded with FITC-labeled anti-CD8 antibody and Ep 173! /, PE-labeled HLA-A24 tetramer, or control . Stained with peptide ENV584 and analyzed by flow cytometry. The percentage of tetramer positive cells in all CD8 positive T cells is shown on the upper right.
- the strength of tetramer positive cells was equal to and stronger than that of tetramer negative cells up to 2-3 log.
- the present inventors established a T cell clone, C27, from the limiting dilution medium of the donor No. 4 Epl73-specific polyclonal CTL line.
- Epl73-specific CTL clone power was established by vigorously.
- CTL assembly CTL assembly
- Chrominium-labeled cells were added to the total HLA class I, HLA- ⁇ 24, or HLA before adding C27.
- Plates were incubated at 37 ° C for 4 hours and supernatants were counted in a ⁇ -counter.
- the percent specific 51 Cr release was calculated as 100 x (experimental release-natural release) Z (maximum release-natural release).
- FIG. 3 A shows the cytotoxicity of C27, Epl73-specific CTL clones against T2-A24 cells at the indicated concentrations of peptide Epl73 and the control peptide EBV—LMP419 at a single target ratio of 51. Specified by Cr free assembly.
- Epl73-specific CTL clone, C27 showed cytotoxicity against T2—A24 cells pulsed with E p 173 at a low peptide concentration of ⁇ , but the control peptide EBV— Not shown for LMP419.
- Fig. 5 and Table 2 show the results of cytotoxicity of C27 against various cancer cell lines.
- a Average fluorescence intensity is HLA-A24mAb and FITC labeled anti-mouse l g G antibody
- Table 2 shows the cytotoxicity results of C27, Ep 173-specific CTL clones against eight HLA-A24 positive cancer cell lines and HLA-A24 negative cancer cell lines as target cells.
- the HLA-A2402 gene was retrovirally transformed into A549 and QG56, and transformants designated as A549-A24 and QG56-A24 were also used as target cells, respectively. Cytotoxicity is indicated for each indicated EF. Identified by 51 Cr free assembly at Kuta-to-target ratio (40: 1, 20: 1, 10, 1, 5: 1).
- K562 is a representative cell line sensitive to natural killer cells.
- C27 is a lung cancer cell line PC9, LU99, LC-lZ sq and LC99A, or oral squamous cell tumor cell line HSC-2, or HLA-A2
- the gastric cancer cell line MKN45 expressing both 4 and Ep-CAM was efficiently damaged.
- HLA-A24 positive Ep-CAM negative cell lines A549-A24 and COLO320DM
- HLA-A24 negative and Ep-CAM positive cell lines or Ep-CAM negative cell lines OG56, A549, MNK28.
- No killing effect was observed.
- C27 killed the target cells. There was little damage to K562 cells.
- Ep 173 specific CTL killed tumor cells expressing both HLA-A24 and Ep-CAM.
- B in FIG. 3 shows the inhibitory effect of the anti-HLA-A24 monoclonal antibody on the cytotoxicity of H27-A2402-positive cell line, Epl73-specific CTL clone against PC9, and C27.
- C27 is cytotoxic to PC9 cells of the lung cancer cell line (HLA-A24 positive Ep-CAM positive lung cancer cell line). Force blocked by specific monoclonal antibody S, force blocked by anti-HLA-A2 monoclonal antibody.
- C shows the result of the cold target inhibition process.
- the horizontal axis shows the number ratio between T2—A24 cells (cold) pulsed with Ep 173 ( ⁇ ) or control EBV—LMP419 (country) peptide and chrominium-labeled PC9 cells (hot).
- the vertical axis shows the cytotoxicity of PC9 cells by C27 as a percentage. Open 'circles show cytotoxicity without cold targets.
- RT-PCR was performed using a thermal cycler (Perkin Elmer), and PCR products were analyzed by 1.5% gel electrophoresis and ethidium bromide visualization.
- PCR consists of 1 cycle at 94 ° C for 5 minutes, 30 seconds at 94 ° C, 30 seconds at 58 ° C, 30 cycles at 1 minute at 72 ° C, 7 minutes at 72 ° C It was performed under the condition of one cycle.
- Proteins were visualized using an ECL Western 'plot detection system (Amersham's Biosciences).
- Fig. 4 shows the results of testing Ep-CAM expression in cancer cell lines by RT-PCR and Western plot analysis.
- A24 was tested by an indirect immunofluorescence test using anti-HLA-A24 monoclonal antibody. Of the 15 cancer cell lines tested, 10 were positive for HLA-A24 expression o
- the present inventors obtained a novel HLA-A2402-restricted epitope derived from Ep-CAM. At least the epitope peptide, Epl73 (RY QLDPKFI; SEQ ID NO: 1) has the ability to induce CTL possessing a high affinity T cell receptor directed against the HLA A2402Z peptide complex. I can expect therapy.
- the peptide of the present invention can be suitably used as a cancer vaccine against a wide range of human epithelial cancers having HLA-A2402.
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- General Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Physics & Mathematics (AREA)
- Plant Pathology (AREA)
- Communicable Diseases (AREA)
- Oncology (AREA)
- Peptides Or Proteins (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES05703824T ES2390967T3 (es) | 2004-01-20 | 2005-01-19 | Epítopo/péptido reconocido por LTC específico para Ep-CAM con restricción por ALH-A2402 y su utilización |
| CA002554001A CA2554001A1 (en) | 2004-01-20 | 2005-01-19 | Epitope/peptide recognized by hla-a2402-restricted ep-cam-specific ctl and use of the same |
| JP2005517110A JP4779067B2 (ja) | 2004-01-20 | 2005-01-19 | HLA−A2402拘束性Ep−CAM特異的CTLが認識するエピトープ・ペプチド及びその用途 |
| CN2005800028078A CN1910284B (zh) | 2004-01-20 | 2005-01-19 | 由HLA-A2402-限制的Ep-CAM-特异的CTL识别的表位/肽及其应用 |
| EP05703824A EP1715042B1 (en) | 2004-01-20 | 2005-01-19 | EPITOPE/PEPTIDE RECOGNIZED BY HLA-A2402-RESTRICTED Ep-CAM-SPECIFIC CTL AND USE OF THE SAME |
| US10/586,852 US7619058B2 (en) | 2004-01-20 | 2005-01-19 | Epitope/peptide recognized by HLA-A2402-restricted Ep-CAM-specific CTL and use of the same |
| US12/564,320 US7846651B2 (en) | 2004-01-20 | 2009-09-22 | Epitope/peptide recognized by HLA-A2402-restricted Ep-CAM-specific CTL and use of the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004011752 | 2004-01-20 | ||
| JP2004-011752 | 2004-01-20 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/586,852 A-371-Of-International US7619058B2 (en) | 2004-01-20 | 2005-01-19 | Epitope/peptide recognized by HLA-A2402-restricted Ep-CAM-specific CTL and use of the same |
| US12/564,320 Division US7846651B2 (en) | 2004-01-20 | 2009-09-22 | Epitope/peptide recognized by HLA-A2402-restricted Ep-CAM-specific CTL and use of the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2005068632A1 true WO2005068632A1 (ja) | 2005-07-28 |
| WO2005068632A8 WO2005068632A8 (ja) | 2006-10-19 |
Family
ID=34792346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/000587 Ceased WO2005068632A1 (ja) | 2004-01-20 | 2005-01-19 | HLA−A2402拘束性Ep−CAM特異的CTLが認識するエピトープ・ペプチド及びその用途 |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US7619058B2 (ja) |
| EP (1) | EP1715042B1 (ja) |
| JP (1) | JP4779067B2 (ja) |
| KR (1) | KR20060129393A (ja) |
| CN (2) | CN101434647A (ja) |
| CA (1) | CA2554001A1 (ja) |
| ES (1) | ES2390967T3 (ja) |
| WO (1) | WO2005068632A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090220931A1 (en) * | 2005-09-08 | 2009-09-03 | Mologen Ag | Functional in vitro immunoassay |
| WO2021045224A1 (ja) * | 2019-09-04 | 2021-03-11 | 国立大学法人東海国立大学機構 | がん免疫療法等における免疫関連有害事象の予測 |
| JP2023051941A (ja) * | 2017-03-03 | 2023-04-11 | トレオス バイオ リミテッド | ペプチドワクチン |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2413956B1 (en) | 2009-04-02 | 2016-09-14 | Vaxon Biotech | Identification, optimization and use of cryptic hla-a24 epitopes for immunotherapy |
| CN101948508B (zh) * | 2010-09-09 | 2012-07-04 | 郑州大学 | Piwil2抗肿瘤ctl表位肽及其应用 |
| CN104277094A (zh) * | 2014-07-04 | 2015-01-14 | 文康医疗技术(深圳)有限公司 | Dc靶向肽及其应用 |
| CN107267481A (zh) * | 2017-05-09 | 2017-10-20 | 上海交通大学医学院附属新华医院 | Cdk5抗原表位肽及其应用 |
| WO2019031939A2 (ko) * | 2017-08-10 | 2019-02-14 | 주식회사 굳티셀 | 암 치료를 위한 t 세포의 활성화 방법 |
| MX2021002449A (es) | 2018-09-04 | 2021-08-05 | Treos Bio Ltd | Vacunas peptidicas. |
| CN115960828A (zh) * | 2023-02-01 | 2023-04-14 | 青岛海尔生物科技有限公司 | 一种靶向hpv16 e7的hla-a*0201限制性cd8毒性t细胞的制备方法 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015597A1 (en) * | 1995-10-25 | 1997-05-01 | Centocor B.V. | HUMAN EPITHELIAL ANTIGEN Ep-CAM DERIVED PEPTIDES AND THEIR USE |
| JPH11318455A (ja) * | 1998-05-08 | 1999-11-24 | Kyogo Ito | ヒト癌退縮抗原タンパク質 |
| JP2000116383A (ja) * | 1998-10-14 | 2000-04-25 | Kyogo Ito | ヒト癌退縮抗原タンパク質 |
| JP2001245675A (ja) * | 1999-12-28 | 2001-09-11 | Kyogo Ito | 腫瘍抗原 |
| JP2002510496A (ja) * | 1998-04-03 | 2002-04-09 | グラクソ グループ リミテッド | 細胞傷害性t細胞を誘導するための医薬 |
| WO2003012086A1 (en) * | 2001-07-30 | 2003-02-13 | Sigma-Tau Industrie Farmaceutiche Riunite S.P.A. | Antigen presenting cells, method for their preparation and their use for cancer vaccines |
| JP2003510334A (ja) * | 1999-09-30 | 2003-03-18 | コリクサ コーポレイション | 癌及び感染症の予防及び治療のためのストレスタンパク質組成物及び方法 |
| JP2003533175A (ja) * | 1999-11-15 | 2003-11-11 | ルードヴィッヒ インスティテュート フォー キャンサー リサーチ | Ny−eso−1ペプチド誘導体およびその使用 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6417165B1 (en) | 1988-03-27 | 2002-07-09 | Ludwig Institute For Cancer Research | NY-ESO-1-peptide derivatives, and uses thereof |
| US5310929A (en) | 1992-08-06 | 1994-05-10 | E. I. Du Pont De Nemours And Company | Prodrugs of imidazole carboxylic acids as angiotensin II receptor antagonists |
| US20030148463A1 (en) * | 1997-04-14 | 2003-08-07 | Micromet Ag | Novel method for the production of anti-human antigen receptors and uses thereof |
| HK1039946A1 (zh) | 1998-07-28 | 2002-05-17 | 伊东恭悟 | 来源於sart-1的hla-a2限制性肿瘤抗原肽 |
| US20020039583A1 (en) | 1999-09-30 | 2002-04-04 | Subjeck John R. | Stress protein compositions and methods for prevention and treatment of cancer and infectious disease |
| JP4097178B2 (ja) | 2000-10-03 | 2008-06-11 | 株式会社グリーンペプタイド | 腫瘍抗原 |
-
2005
- 2005-01-19 CN CNA2008101846464A patent/CN101434647A/zh active Pending
- 2005-01-19 CA CA002554001A patent/CA2554001A1/en not_active Abandoned
- 2005-01-19 JP JP2005517110A patent/JP4779067B2/ja not_active Expired - Fee Related
- 2005-01-19 US US10/586,852 patent/US7619058B2/en not_active Expired - Fee Related
- 2005-01-19 KR KR1020067016685A patent/KR20060129393A/ko not_active Withdrawn
- 2005-01-19 WO PCT/JP2005/000587 patent/WO2005068632A1/ja not_active Ceased
- 2005-01-19 CN CN2005800028078A patent/CN1910284B/zh not_active Expired - Fee Related
- 2005-01-19 ES ES05703824T patent/ES2390967T3/es not_active Expired - Lifetime
- 2005-01-19 EP EP05703824A patent/EP1715042B1/en not_active Expired - Lifetime
-
2009
- 2009-09-22 US US12/564,320 patent/US7846651B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015597A1 (en) * | 1995-10-25 | 1997-05-01 | Centocor B.V. | HUMAN EPITHELIAL ANTIGEN Ep-CAM DERIVED PEPTIDES AND THEIR USE |
| JP2002510496A (ja) * | 1998-04-03 | 2002-04-09 | グラクソ グループ リミテッド | 細胞傷害性t細胞を誘導するための医薬 |
| JPH11318455A (ja) * | 1998-05-08 | 1999-11-24 | Kyogo Ito | ヒト癌退縮抗原タンパク質 |
| JP2000116383A (ja) * | 1998-10-14 | 2000-04-25 | Kyogo Ito | ヒト癌退縮抗原タンパク質 |
| JP2003510334A (ja) * | 1999-09-30 | 2003-03-18 | コリクサ コーポレイション | 癌及び感染症の予防及び治療のためのストレスタンパク質組成物及び方法 |
| JP2003533175A (ja) * | 1999-11-15 | 2003-11-11 | ルードヴィッヒ インスティテュート フォー キャンサー リサーチ | Ny−eso−1ペプチド誘導体およびその使用 |
| JP2001245675A (ja) * | 1999-12-28 | 2001-09-11 | Kyogo Ito | 腫瘍抗原 |
| WO2003012086A1 (en) * | 2001-07-30 | 2003-02-13 | Sigma-Tau Industrie Farmaceutiche Riunite S.P.A. | Antigen presenting cells, method for their preparation and their use for cancer vaccines |
Non-Patent Citations (2)
| Title |
|---|
| PARKER K.C. ET AL: "Scheme for ranking potential HLA-A2 binding peptides based on independent binding of individual peptide side-chains", J IMUNNOL, vol. 152, no. 1, 1 January 1994 (1994-01-01), pages 163 - 175, XP000884375 * |
| See also references of EP1715042A4 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090220931A1 (en) * | 2005-09-08 | 2009-09-03 | Mologen Ag | Functional in vitro immunoassay |
| JP2023051941A (ja) * | 2017-03-03 | 2023-04-11 | トレオス バイオ リミテッド | ペプチドワクチン |
| WO2021045224A1 (ja) * | 2019-09-04 | 2021-03-11 | 国立大学法人東海国立大学機構 | がん免疫療法等における免疫関連有害事象の予測 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1910284A (zh) | 2007-02-07 |
| CN1910284B (zh) | 2011-04-06 |
| JP4779067B2 (ja) | 2011-09-21 |
| EP1715042B1 (en) | 2012-08-22 |
| JPWO2005068632A1 (ja) | 2007-12-27 |
| WO2005068632A8 (ja) | 2006-10-19 |
| EP1715042A1 (en) | 2006-10-25 |
| EP1715042A4 (en) | 2008-01-09 |
| US20100167321A1 (en) | 2010-07-01 |
| CA2554001A1 (en) | 2005-07-28 |
| US20090010951A1 (en) | 2009-01-08 |
| ES2390967T3 (es) | 2012-11-20 |
| US7846651B2 (en) | 2010-12-07 |
| KR20060129393A (ko) | 2006-12-15 |
| CN101434647A (zh) | 2009-05-20 |
| US7619058B2 (en) | 2009-11-17 |
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