WO2009153463A1 - Peptides immunogenes issus de la proteine midkine comme vaccin anticancereux - Google Patents
Peptides immunogenes issus de la proteine midkine comme vaccin anticancereux Download PDFInfo
- Publication number
- WO2009153463A1 WO2009153463A1 PCT/FR2009/000744 FR2009000744W WO2009153463A1 WO 2009153463 A1 WO2009153463 A1 WO 2009153463A1 FR 2009000744 W FR2009000744 W FR 2009000744W WO 2009153463 A1 WO2009153463 A1 WO 2009153463A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- peptide
- midkine
- hla
- cells
- protein
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K40/00—Cellular immunotherapy
- A61K40/10—Cellular immunotherapy characterised by the cell type used
- A61K40/11—T-cells, e.g. tumour infiltrating lymphocytes [TIL] or regulatory T [Treg] cells; Lymphokine-activated killer [LAK] cells
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K40/00—Cellular immunotherapy
- A61K40/10—Cellular immunotherapy characterised by the cell type used
- A61K40/19—Dendritic cells
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K40/00—Cellular immunotherapy
- A61K40/20—Cellular immunotherapy characterised by the effect or the function of the cells
- A61K40/24—Antigen-presenting cells [APC]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K40/00—Cellular immunotherapy
- A61K40/40—Cellular immunotherapy characterised by antigens that are targeted or presented by cells of the immune system
- A61K40/41—Vertebrate antigens
- A61K40/42—Cancer antigens
- A61K40/428—Undefined tumor antigens, e.g. tumor lysate or antigens targeted by cells isolated from tumor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/18—Drugs for disorders of the alimentary tract or the digestive system for pancreatic disorders, e.g. pancreatic enzymes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
- A61P13/08—Drugs for disorders of the urinary system of the prostate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
- A61P13/10—Drugs for disorders of the urinary system of the bladder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/04—Immunostimulants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P5/00—Drugs for disorders of the endocrine system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56966—Animal cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/575—Immunoassay; Biospecific binding assay; Materials therefor for cancer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/435—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans
- G01N2333/475—Assays involving growth factors
Definitions
- the invention relates to the use as an anticancer vaccine of peptides derived from the Midkine protein capable of inducing CD4 + T and / or CD8 + T lymphocytes which recognize said midkine protein in the majority of individuals of the Caucasian population, in many types of cancers.
- the invention also relates to the use of such peptides recognized by Midkine-specific CD4 + and / or CD8 + T lymphocytes, in the majority of individuals of the Caucasian population, in many types of cancers, such as reagent for the immunomonitoring of the cellular response against midkine during cancer or anticancer treatment.
- Tumor cells express a set of proteins that healthy cells do not express or little, or that are found in only a few cell types. These proteins being preferentially expressed in the tumor cells, can constitute a tumor antigen, that is to say a protein present in the tumor and which induces an immune response capable of recognizing the tumors and ideally eliminating them. This response may be either an antibody response as the antigen is membrane-bound or a cellular response involving CD8 + or CD4 + T cells. Most tumor antigens are intracellular and induce a cellular response. They are prime targets for vaccine development.
- T cells contribute to the cellular immune response directed against tumors. They can be induced spontaneously in patients with cancer and infiltrate tumors, giving in rare cases a spontaneous regression. They can be induced by vaccines that are intended to facilitate their recruitment.
- CD8 + T cells are cytotoxic (CTL CD8 + ) and can lyse tumor cells. The lysis of cells during their recognition involves perforin and granzymes.
- CD8 + T cells recognize the tumor antigen in the form of peptides, called CD8 + T epitopes, that are present on the surface of tumors by HLA class I molecules (HLA-A, HLA-B and HLA-C). .
- CD4 + helper T cells recognize tumor antigens in the form of peptides, termed CD4 + T epitopes, presented to them by HLA class II molecules.
- CD4 + T cell recognition of tumors can be achieved directly when tumors express class II molecules or indirectly through the capture of cell debris by dendritic cells that are cells that have a high number of cells. HLA class II molecules on their surface.
- CD4 + T lymphocytes involved in anti-tumor immunity play a multiple role in the control of tumors and in particular are involved in the recruitment and maintenance of CD8 + CTLs.
- CD4 + T cells play a role in dendritic cell (DC) activation via a CD40-dependent mechanism.
- DC dendritic cell
- Tumor specific antigens This is the most important group of antigens, which was initially found in melanomas but is actually expressed in many tumors. These antigens are also called “Cancer Testis” because of their expression in the testes which is the only healthy tissue that expresses them. Some of these antigens are also expressed in the placenta or ovaries. Because the testes and placenta lack conventional HLA molecules, these antigens are not visible to T cells in normal tissues. The main antigens are the MAGE-A, MAGE-B, MAGE-C, GAGE, LAGE and SSX antigens. * Differentiation antigens
- Differentiation antigens are proteins expressed by tumors and by the cell tissue that gave rise to them.
- the best known examples are melanoma antigens which are also expressed in melanocytes. These are tyrosinases (TYRO, TRP-I and TRP-2) and GpIOO and MELAN-A / MART-1 antigens.
- Other differentiation antigens are also known for prostate tumors (kallikrein-4 and PSA) or cancer of the digestive tract (CEA).
- Over-expressed antigens are highly expressed proteins in many tumor cells, whereas their expression level is low in normal cells. This is the case of the HER-2 / neu antigen which is found in about 30% of carcinomas of the breast and ovaries and in some carcinomas of the colon and kidney. P53 is also frequently overexpressed in tumors. This protein, which inhibits cell multiplication, is normally very quickly recycled to normal cells. Telomerase (hTERT) is found in more than 80% of tumors, regardless of tissue origin, whereas it is absent or low-noise in normal cells. The action of telomerase serves to compensate for the reduction in telomeres that occurs during cell division.
- Apoptosis inhibiting proteins such as the Survivin protein are a family of proteins that, by inhibiting caspases, inhibit cell death.
- Other antigens Other categories of antigens are antigens resulting from mutation or genetic arrangement (MUM-I, CDK4, beta-catenin, HLA-A2, BCR-ABL, CASP-8) and tumor antigens of viral origin (E6 and E7 proteins of papillomaviruses involved in cancer of the cervix).
- T lymphocytes capable of recognizing tumor cells that express these proteins. It is indeed possible that they are only weakly immunogenic because of tolerance mechanisms or the absence of T epitopes in their sequence. It is also possible that they are capable of inducing an immune response but that the induced cells do not recognize the tumors.
- the T epitopes derived from these proteins may indeed not be presented on the surface of the tumor cells because of an insufficient level of expression or poor protein pretreatment in the tumor cells.
- Midkine protein also known as NEGF2 (Neurite outgrowth-promoting factor 2)
- NEGF2 Neuronal growth factor 2
- NEGF2 Neuronal growth factor 2
- the midkine gene is located on chromosome 11 at position 1 IpI 1.2. It has 4 exons and has a size of 3.5kb; the coding sequence corresponds to NCBI access number M69148 (SEQ ID NO: 1 in the attached sequence listing).
- the regulatory region contains a retinoic acid response site and two WT1 tumor suppressor response sites (Wilms Tumor Suppressor 1).
- the retinoic acid response site is responsible for the induction of Midkine expression by retinoic acid, whereas the WT1 response sites are involved in the decrease of WT1 expression.
- a variant splicing of the human Midkine protein, called INSP 106, has also been described (PCT International Application WO 2004/052928).
- Midkine is a 143 amino acid protein rich in basic residues and has five disulfide bridges [(37,61); (45.70); (52,74); (84,116); (94.126)].
- the human sequence corresponds to SwissProt access number P21741 ( Figure 1 and SEQ ID NO: 2 in the attached sequence listing). It is expressed in the form of a precursor comprising a signal peptide of 22 amino acids (FIG. 1). It has about 50% homology with the protein Pleiotrophin.
- the structure of Midkine was resolved by NMR in 1997.
- the protein has two different domains, each consisting of three anti-parallel beta sheets maintained by disulfide bridges; the two domains are connected by a flexible region.
- Biological activity requires only the C-terminal domain. This domain is conserved and is found from the Drosophila to the man, which confirms its functional role. It also has two sites for fixing heparin. At least four receptors capable of binding midkine are known, which gives it many activities: members of the Syndecan family which are proteoglycans comprising heparin sulphates; PTP ⁇ which is a proteoglycan comprising chondroitin sulfate; ALK (Anaplastic Lymphoma Kinase); LRP which is a member of the LDL receptor family.
- midkine is mainly expressed during embryogenesis with peak expression in the midgut.
- Midkine is involved in the development of neurons. It causes the growth of neurites and the migration of nerve cells. It is involved in the development of the neuromuscular junction and the protection of neurons.
- Midkine is involved in the development of teeth, lungs, kidneys and bones.
- Midkine deficient mice are viable and are only affected in neuronal functions consistent with the role of midkine in the development of the nervous system. It has also been observed that mice rendered defective for the midkine gene are less affected than control mice by the induction of nephritis. They are also less prone to restenosis (narrowing of the arteries due to the proliferation of damaged arterial tissues).
- Midkine is overexpressed in many tumors whereas in healthy individuals and adults its expression is less and local (small intestine, brain). Midkine is one of the 40 most expressed genes in tumors compared to healthy tissues (Velculescu et al, Nat Genet, 1999, 23, 387-388). Midkine is overexpressed in about 80% of the cases of many human cancers, particularly carcinomas.
- Elevated expression has been correlated with poor prognosis in bladder cancer, glioblastoma, and neuroblastoma (O'Brien, Cancer Res., 1996, 56, 2515-2518).
- overexpression of midkine is correlated with increased resistance to chemotherapy in human gastric cancer cell lines. Its expression is not only tissue.
- a high level of midkine has been observed in the serum of more than 60% of patients with carcinomas (Muramatsu et al., J. Biochem., 2003, 132, 259-371). This level decreases when the tumor is removed. The presence of midkine in the serum could therefore have a diagnostic value. Midkine seems to have many activities related to tumorigenesis.
- Midkine or its modulators are useful for stimulating angiogenesis, rhematopoiesis, preventing atherosclerosis and restenosis, inhibiting apoptosis, in the prevention and treatment of inflammatory, cardiac pathologies (myocardial infarction), cerebral, hepatic, nerve, renal, ocular (retinopathies), neurofibrosis, respiratory (asthma and pulmonary hyperplasia), post-surgical (Requests US 2003/0072739, US 2003/0185794, US 2004/0077579, US 2005/0079151, US 2006/0148738 and US 2005/0130928; European application EP 1832296, PCT International Applications WO 2007/055397 and WO 2000/031541; U.S.
- the Midkine protein which possesses a preferential expression in tumors contains peptides capable of inducing specific CD4 + and / or CD8 + T lymphocytes that recognize the Midkine protein expressed by tumor cells in many types of cancer. among the majority of individuals in the Caucasian population.
- These peptides represent potential candidates for prophylactic or therapeutic vaccination against cancer, since they are capable of inducing a CD4 + T and CD8 + T response directed against the tumor, in the majority of vaccinated patients, to the extent that where: (i) they are derived from an antigen expressed by many tumors, (ii) they are capable of inducing specific CD4 + and CD8 + T cells recognizing the antigen expressed by the tumors, and (iii) they are recognized by CD4 + and CD8 + T cells in the majority of individuals in the Caucasian population because they take into account the polymorphism of HLA molecules and are restricted to predominant HLA molecules in the Caucasian population.
- these peptides that are recognized by T lymphocytes are recognized by T lymphocytes
- CD4 + and / or T CD8 + specific for a tumor antigen expressed by the majority of tumors are useful for the immunomonitoring of the cellular response against Midkine during the course of a cancer and especially after an anticancer treatment (surgical, chemotherapy, radiotherapy, immunotherapy).
- the present invention accordingly relates to the use of a midkine protein derived from the peptide comprising at least one CD4 + T epitope or CD8 + T cells restricted to HLA molecules predominant in the Caucasian population or a polynucleotide encoding said peptide, for the preparation of an anti-cancer vaccine for the treatment of cancers associated with tumor overexpression of said midkine protein.
- Midkine (precursor of 143 amino acids or mature protein (positions 23 to 143 of the precursor) that a peptide fragment of at least 8 consecutive amino acids of said protein.
- “Midkine” means a Midkin protein derived from which mammal, preferably, is the human protein The positions of the peptides derived from midkine are indicated with reference to the human sequence (SwissProt P21741, Figure 1 and SEQ ID NO: 2).
- Preponderant HLA molecule in the Caucasian population or "predominant HLA molecule” means an HLA I molecule (HLA-A HLA-B or HLA-C) or predominant HLA II molecule. These are the HLA-A, HLA-B and HLA-C molecules comprising an alpha chain encoded by an allele whose frequency is greater than 5% in the Caucasian population, as specified in Table I below.
- HLA II molecules comprising a beta chain encoded by an allele whose frequency is greater than 5% in the Caucasian population, as specified in Table II below.
- the predominant HLA II molecules (gene frequency> 5%) are indicated in bold
- CD4 + T epitope of the Midkine restricted to the predominant HLA II molecules in the Caucasian population means a peptide of 11 to 15 amino acids which binds at least one HLA II molecule, predominant in the Caucasian population and is recognized by CD4 + T cells in individuals of this population; the peptide comprises a sequence of 9 amino acids including the anchoring residues to HLA II molecules, flanked at one of its ends, preferably at both ends, with at least 2 amino acids, preferably 3 amino acids.
- CD8 + T epitope of the Midkine restricted to the predominant HLA I molecules in the Caucasian population is understood to mean a peptide of 8 to 13 amino acids which binds at least one predominant HLA I molecule in the Caucasian population and is recognized by lymphocytes. CD8 + T in individuals of this population; the peptide comprises a sequence of 8 to 9 amino acids including the anchoring residues to the HLA I molecules.
- Cancer is a cancer associated with the overexpression of the Midkine protein by tumor cells such as, but not limited to: cancers of the esophagus, stomach, colon, pancreas, thyroid, lung, breast, bladder, uterine, ovarian, prostate, hepatocellular carcinoma, osteosarcoma, neuroblastoma, glioblastoma, astrocytoma, leukemia, and tumors. WiIm.
- the term "natural or synthetic amino acid” is intended to mean the naturally occurring ⁇ -amino acids commonly found in the proteins (A, R, N, D, C, Q, E, G, H, I, L, K, M, F).
- amino acids D derived from amino acids L and the analogs of the preceding amino acids .
- hydrophobic amino acid is understood to mean an amino acid selected from (one-letter code): A, V, L, I, P, W, F and M.
- aromatic amino acid is meant an amino acid selected from (one-letter code): F, W and Y.
- the peptides according to the invention are recognized by CD4 + and / or CD8 + T lymphocytes in the majority of individuals insofar as they are presented by HLA I and HLA II molecules which are predominant in the Caucasian population. They are immunogenic, ie they are capable of inducing Midkine-specific CD4 + and / or CD8 + T lymphocytes from the precursors present in the majority of naive individuals or to stimulate such T cells. in the majority of individuals with cancer associated with overexpression of midkine. In addition, the CD4 + and / or CD8 + T cells that are induced in the majority of individuals recognize midkine expressed by the tumors of these individuals.
- the immunogenicity of the peptides may be determined, in particular from peripheral blood mononuclear cells (PBMCs), by any appropriate assay known to those skilled in the art, for example: a cell proliferation test, a cytotoxicity test, a test ELISPOT (assay for cytokine-producing cells) or a cytokine assay (IFN- ⁇ , IL-2, IL-4, IL-10, IL-5, TNF- ⁇ and TGF- ⁇ ).
- PBMCs peripheral blood mononuclear cells
- the invention encompasses natural or synthetic variant peptides obtained by mutation (insertion, deletion, substitution) of one or more amino acids in the midkine sequence, since said peptide retains good affinity for the predominant HLA molecules and is immunogenic.
- the natural variants result in particular from the polymorphism of midkine.
- HLA DR HLA DR
- Binding patterns for HLA DR molecules are described in particular in Sturnolio et al., Nat. Biotech, 1999, 17, 533-534 and Rammensee et al, Immunogenetics, 1995, 41, 178-228.
- the amino acid residues involved in the binding to the HLA-I molecules (anchoring residues) and the effect of the modifications of these residues on the binding to the HLA-I molecules are known to those skilled in the art.
- Peptide binding motifs to HLA class I molecules are described in Rammensee et al., Immunogenetics, 1995, 41, 178-228 and in Table III below.
- the invention also encompasses the modified peptides derived from the foregoing by introduction of any modification at the level of amino acid residue (s), peptide bond or peptide ends, since said modified peptide retains a good affinity for the molecules. HLA preponderant and is immunogenic.
- modifications which are introduced into the peptides by conventional methods known to those skilled in the art, include in a nonlimiting manner: the substitution of an amino acid by a nonproteinogenic amino acid (amino acid D or the like of an acid amine); adding a chemical group (lipid, oligo or polysaccharide) at a reactive function, in particular the side chain R; modification of the peptide bond (-CO-NH-), in particular by a retro-type or retro-inverso bond (-NH-CO-) or a bond different from the peptide bond; cyclization; the fusion of a peptide (epitope of interest for vaccination, label useful for the purification of the peptide, especially in cleavable form with a protease); the fusion of the sequence of said peptide with that of a protein, in particular an ⁇ chain of an HLA I or HLA II molecule, a ⁇ chain of an HLA II molecule or the extracellular domain of said chain or else a sequence of targeting in the
- said peptide is constituted by the Midkine protein.
- it is the human protein of sequence SEQ ID NO: 2.
- the present invention encompasses the use of the denatured midkine protein by any suitable means known to those skilled in the art, and in particular reduced midkine protein.
- the present invention also encompasses the use of variants of Midkine protein in which at least one of the cysteines involved in a disulfide bridge is replaced by another amino acid, for example a serine.
- the present invention also encompasses the use of amino acids of at least eight peptides derived from the midkine protein that comprise at least one CD4 + T epitope or CD8 + T cells as defined above.
- the invention encompasses the use of peptides that bind to one of the HLA I molecules and / or one of the HLA II molecules. More frequent in the Caucasian population, in particular the HLA-A2 molecule (Table I) and / or the HLA-DR7, HLA-DRB4, HLA-DP401 or HLA-DP402 molecules (Table II).
- the invention also encompasses the use of peptides which bind several different HLA I and / or HLA II molecules, so as to widen the immunization coverage to the majority of the Caucasian population.
- the invention also encompasses the use of peptides of at least 8 amino acids from the Midkine N-terminal domain (positions 1-84 with reference to the midkine precursor sequence) which comprise at least one CD4 + T epitope. or T CD8 + as defined above.
- said fragment has a length of
- amino acids From 8 to 100 amino acids, preferably from 8 to 50 amino acids, preferably from 10 to 25 amino acids (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 , 23, 24 or 25 amino acids).
- said peptide is a fragment of at least 8 amino acids of the Midkine protein comprising at least one CD8 + T epitope restricted to the HLA-A2 molecule, which peptide comprises at least the 14 positions. at 21 or 114-122 of the amino acid sequence of said midkine protein.
- said peptide comprises positions 12 to 21, 13 to 21, 13 to 22, 14 to 22 or 13 to 122 of the amino acid sequence of said midkine protein.
- said peptide is constituted by positions 12 to 21 (MDK 12-21), 13 to 21 (MDK 13-21), 13 to 22 (MDK 13-22), 14 to 22 (MDK 14-22) 113-122 (MDK 113-122) or 114-122 (MDK 114-122) of the amino acid sequence of Midkine protein; these peptides correspond, respectively, to the sequences SEQ ID NO: 3 to 8 in the sequence listing in the appendix.
- said peptide is a fragment of at least 8 amino acids of the Midkine protein comprising at least one CD4 + T epitope restricted to at least one predominant HLA II molecule in the Caucasian population, which peptide comprises at least positions 9 to 15, 14 to 28, 52 to 64, 64 to 78, 70 to 84, 74 to 88, 78 to 92, 84 to 98, 99 to 113, 105 to 119, 1 to 124 or 119 to 133 of the amino acid sequence of said protein Midkine.
- these peptides are the peptides of SEQ ID NO: 9, 10, 13 to 15, 21 to 26, 28, 29 and 30 (Table VII).
- said predominant HLA II molecule in the Caucasian population is chosen from the HLA-DR1, HLA-DR3, HLA-DR4, HLA-DR7, HLA-DRI1, HLA-DR1, HLA-DR1 and HLA-DR1 molecules.
- HLA II molecules are advantageously coded respectively by the HLA DRB 1 * 0101, DRB 1 * 0301, DRB1 * 0401, DRB1 * 0701, DRB1 * 11O1, DRB1 * 13O1, DRB1 * 15O1, DRB3 * 0101, DRB4 * 0104 alleles, DRB5 * 0101, DP * 0401 and DP * 0402.
- said peptide binds at least four different HLA II molecules predominant in the Caucasian population and comprises at least positions 9 to 15, 14 to 28 or 110 to 124 of the amino acid sequence of said midkine protein.
- Said peptide advantageously comprises the positions 1 to 15 4 to 18 5 9 to 21, 9 to 22, 9 to 23 or l4 to 28 of the amino acid sequence of midkine protein.
- said peptide is constituted by positions 1 to 15 (MDK 1-15), 4 to 18 (MDK 4-18), 9 to 21 (MDK 9-21), 9 to 22 (MDK 9-22) , 9-23 (MDK 9-23), 14-28 (MDK 14-28), or 110-124 (MDK 110-124) of the amino acid sequence of Midkine protein; these peptides correspond, respectively, to the sequences SEQ ID NO: 9 to 15 in the sequence listing in the appendix.
- said peptide advantageously comprises several CD4 + and / or CD8 + T epitopes of the Midkine protein, optionally combined with other CD4 + , TCD8 + or T epitopes.
- the epitopes are advantageously CD4 + T epitopes. or CD8 + T derived from tumor antigen as described at http://www.cancerimmunity.org/peptidedatabase/tumorspecific.htm, including CD4 + or CD8 + T epitopes derived from MAGE, NY-ESO-I or survivin.
- said peptide is a fragment of the Midkine protein comprising at least one CD8 + T epitope restricted to the HLA-A2 molecule and at least one CD4 + T epitope restricted to at least four HLA II molecules.
- various predominant in the Caucasian population which peptide comprises positions 9 to 21, 9 to 22, 9 to 23 or 110 to 124 of the amino acid sequence of said midkine protein.
- said peptide is constituted by positions 9 to 21 (MDK 9-21), 9 to 22 (MDK 9-22), 9 to 23 (MDK 9-23) or 110 to 124 (MDK 1 10-124) of the amino acid sequence of the Midkine protein.
- Such a peptide advantageously makes it possible to induce both CD4 + and CD8 + T lymphocytes specific for numerous tumors in the majority of the individuals of the Caucasian population presenting these tumors.
- the different epitopes can be included in the vaccine composition in the form of a mixture of isolated peptides, a multiepitopic peptide, a fusion protein or a polynucleotide encoding the foregoing peptides / protein.
- the said peptides / protein may be modified or associated with liposomes or lipids, in particular in the form of lipopeptides.
- said polynucleotide is included in a vector, in particular an expression vector.
- epitopes that can be incorporated into the vaccine composition of the invention, mention may be made especially of: MAGE CD8 + T epitopes as described in the US Pat.
- MAGE CD4 + T epitopes such as MAGE-A3 267-282 restricted to DR1 (PCT International Application WO 02/095051); MAGE-A3 149-160 restricted to DR4 and DR7 (Kobayashi et al, Cancer Research, 2001, 61, 4773-4778); MAGE-A3 191-205 and 281-295 restricted to DR1 (Consogno et al., Blood, 2003, 101, 1038-1044, Manici et al., J. Exp.
- an epitope B consisting of a sugar (Alexander et al., cited above), said epitope B being preferably in the form of a glycopeptide, and
- an epitope B of Midkine specifically recognized by antibodies directed against said tumor antigen.
- said peptide derived from midkine is a multi-epitopic peptide comprising the concatenation of at least two identical or different epitopes of which at least one is a CD4 + T epitope and / or CD8 + T of Midkine.
- the multi-epitope peptide advantageously comprises other epitopes (CD4 + T epitope or CD8 + T of another tumor antigen), as defined above.
- the sequences of the different epitopes are linked together by a peptide bond or separated by heterologous sequences, that is to say sequences different from those naturally present at this position in the sequence. amino acids of Midkine.
- said multiepitopic peptide has a length of 20 to 1000 amino acids, preferably 20 to 100 amino acids.
- Said multiepitopic peptide advantageously comprises a label fused at one of its ends for the purification or detection of said fragment.
- the tag particularly a polyhistidine sequence or an epitope B of an antigen, is preferably separated from the multiepitope sequence by a protease cleavage site so as to isolate the multiepitope sequence from the fusion.
- said peptide derived from Midkine is a lipopeptide comprising a peptide or a multiepitopic fragment, as defined above.
- Said lipopeptide is especially obtained by adding a lipid on an ⁇ -amino function or on a reactive function of the side chain of an amino acid of said peptide or multiepitopic fragment; it may comprise one or more chains derived from C 4-20 fatty acids, optionally branched or unsaturated (palmitic acid, oleic acid, linoleic acid, linolenic acid, 2-amino hexadecanoic acid, pimelautide, trimetauxide) or a derivative of a steroid.
- the preferred lipid portion is in particular represented by a N ⁇ -acetyl-lysine N ⁇ (palmitoyl) group, also called Ac-K (Pam).
- said peptide derived from midkine is fused with a heterologous protein or protein fragment (fusion protein).
- the peptide or multiepitopic fragment may be fused with the NH 2 or COOH end of said protein or inserted into the sequence of said protein.
- said fusion protein consists of a peptide as defined above, fused with a targeting sequence in the endosome, preferably derived from a human invariable chain Ii or from the protein LAMP-I.
- the targeting sequences in the endosome and their use for the targeting of antigens in the endosome are notably described in Sanderson et al. (Proc Nat Sci USA, 1995, 92, 7217-7222), Wu et al. (Proc Nat Sci USA, 1995, 92, 11671-11675) and Thompson et al. (J. Virol., 1998, 72, 2246-2252).
- said fusion protein consists of a peptide as defined above, fused with one of the chains of an HLA molecule, preferably the beta chain of an HLA II molecule or the alpha chain of an HLA I molecule, or with a fragment thereof corresponding to a soluble HLA molecule, in particular a fragment corresponding to the domain extracellular preceded by the homologous signal peptide or a heterologous signal peptide.
- Said peptide is advantageously inserted between the signal peptide and the NH 2 end of the extracellular domain of the ⁇ or ⁇ chain, as described for the HLA-DR molecule (Kolzin et al, PNAS, 2000, 97, 291-296).
- said peptide or said multiepitopic fragment are fused with a protein facilitating their purification or their detection, known to those skilled in the art such as Glutathione-S-Transferase (GST) and fluorescent proteins (GFP and derivatives).
- GST Glutathione-S-Transferase
- GFP fluorescent proteins
- the sequence of the peptide or multi-epitope fragment of interest is preferably separated from the rest of the protein by a protease cleavage site, to facilitate the purification of said peptide or said multiepitopic fragment.
- said polynucleotide encodes a peptide, a multi-epitope fragment or a fusion protein as defined above.
- the sequence of said polynucleotide is that of the cDNA coding for said peptide or multiepitopic fragment or said fusion protein. Said sequence may advantageously be modified in such a way that codon usage is optimal in the host in which it is expressed.
- said polynucleotide may be linked to at least one heterologous sequence.
- heterologous sequence is understood to mean a nucleic acid sequence encoding midkine, any nucleic acid sequence other than those which, in nature, are immediately adjacent to said nucleic acid sequence encoding said Midkine peptide.
- said polynucleotide is inserted into a vector.
- the term vector is understood to mean a nucleic acid molecule capable of transporting another nucleic acid with which it is associated.
- One type of vector that can be used in the present invention includes, but is not limited to, a linear or circular DNA or RNA molecule consisting of chromosomal, non-chromosomal, synthetic, nucleic acids. or semi-synthetic, such as in particular a viral vector, a plasmid or an RNA vector.
- nucleic acid molecule of interest in which a nucleic acid molecule of interest can be inserted in order to introduce and maintain it in a eukaryotic or prokaryotic host cell are known per se; the choice of an appropriate vector depends on the use envisaged for this vector (for example replication of the sequence of interest, expression of this sequence, maintenance of this sequence in extrachromosomal form, or integration into the chromosomal material of the host), as well as the nature of the host cell.
- naked nucleic acids DNA or RNA
- viral vectors such as adenoviruses, retroviruses, lentiviruses and AAVs
- sequence of interest has been inserted beforehand
- said sequence isolated or inserted in a plasmid vector
- these methods can advantageously be combined, for example by using electroporation associated with liposomes.
- said vector comprises all the elements necessary for the expression of the peptide or of the protein as defined above.
- said vector comprises an expression cassette including at least one polynucleotide as defined above, under the control of appropriate transcriptional regulatory and possibly translational sequences (promoter, activator, intron, initiation codon ( ATG), stop codon, polyadenylation signal, splice site).
- the vaccine composition according to the invention advantageously comprises a pharmaceutically acceptable vehicle, a carrier substance and / or an adjuvant.
- the pharmaceutically acceptable vehicles, the carrier substances and the adjuvants are those conventionally used.
- the adjuvants are advantageously chosen from the group consisting of: oily emulsions, mineral substances, bacterial extracts, oligonucleotides containing CpG, saponin, alumina hydroxide, monophosphoryl lipid A and squalene.
- the carrier substances are advantageously selected from the group consisting of: unilamellar or multilamellar liposomes, ISCOMS, virosomes, viral pseudoparticles, saponin micelles, solid microspheres of saccharide nature (poly (lactide-co-glycolide)) or auriferous, and nanoparticles.
- the vaccine composition comprises an effective peptide / protein / lipopeptide / vector dose for obtaining a prophylactic / therapeutic effect on cancer associated with tumor overexpression of midkine as defined above. This dose is determined and adjusted according to factors such as the age, sex and weight of the subject.
- the vaccine composition is generally administered according to the usual vaccination protocols, at doses and for a time sufficient to induce a cell response directed against Midkine protein. Administration may be subcutaneous, intramuscular, intravenous, intradermal, intraperitoneal, oral, sublingual, rectal, vaginal, intranasal, inhalation or transdermal.
- composition is in a dosage form adapted to a chosen administration: sterile injectable solution, powder, tablets, capsules, suspension, syrup, suppositories, which are prepared according to the standard protocols.
- composition it comprises at least one CD4 + T epitope and a Midkine CD8 + T epitope, in the form of a mixture of peptides, a multiepitopic fragment and / or a DNA vector. an expression encoding said peptides or said fragment as defined above.
- composition comprises at least the peptide MDK 9-21, MDK 9-22, MDK 9-23 or MDK 110-124.
- the peptide MDK 9-21, MDK 9-22 or MDK 9-23 is combined with peptide MDK 74-88 or 78-92, peptide MDK 14-28 or 99-113 and peptide MDK 4-18.
- Such peptide combinations which bind the HLA-A2 molecule and the set of molecules HLA-DR1, HLA-DR3, HLA-DR4, HLA-DR7, HLA-DRI, HLA-DR13, HLA-DRl5, HLA-DRB3, HLA-DRB4, HLA-DRB5, HLA-DP401 and HLA-DP402 (Table VII) advantageously makes it possible to induce CD4 + and CD8 + T cells in almost all of the cells. vaccinated individuals.
- composition comprises a peptide including a universal CD4 + T epitope and / or a CD4 + T and / or CD8 + T epitope of another tumor antigen, as defined above.
- Multiepitope peptide, fusion protein, lipopeptide, recombinant vector can be used in immunotherapy for the treatment of tumors overexpressing midkine.
- Said peptides or derivatives are used either as a vaccine or in cell therapy, or even by a combination of both approaches.
- Cellular therapy comprises, the preparation of antigen presenting cells (dendritic cells) by a conventional protocol comprising isolation of peripheral blood mononuclear cells (PBMC) from a patient to be treated and culturing of the dendritic cells in the presence of peptide (s).
- PBMC peripheral blood mononuclear cells
- s peptide
- the subject of the present invention is also a vaccine composition, characterized in that it comprises at least one peptide fragment derived from midkine as defined above, a multiepitopic peptide, a fusion protein, a lipopeptide or a vector such as defined above, and a pharmaceutically acceptable carrier, a carrier substance or an adjuvant.
- the present invention also relates to a method of antitumor vaccination, prophylactic or therapeutic, characterized in that it comprises the administration of a vaccine composition as defined above, to an individual, by any appropriate means as defined above.
- the subject of the present invention is also the use of at least one peptide as defined above for the preparation of an immunomonitoring reagent of the cellular response against midkine intended for the evaluation of the prognosis or follow-up of cancer treatment (surgery, radiotherapy, chemotherapy, immunotherapy).
- said reagent comprises a peptide or a fusion protein as defined above, for example labeled and / or complexed with an HLA molecule, in the form of multimeric HLA / peptide complexes such as tetramers of HLA / peptide complexes, labeled.
- the subject of the present invention is also an in vitro method for immunomonitoring the cellular response against midkine in an individual suffering from cancer, characterized in that it comprises:
- CD4 + T lymphocytes and / or CD8 + T cells specific for midkine by any appropriate means.
- the method according to the invention makes it possible to follow the evolution of the CD8 + T and / or CD8 + T response directed against midkine during a cancer or an antitumor treatment, in particular antitumor immunotherapy;
- Midkine-specific CD4 + T lymphocytes may be of TH1 type (secretion of IFN-gamma), TH2 (secretion of IL-4) or regulatory T (secretion of IL-10 or of TGF- ⁇ ); it is expected that the TH1 type T response is a sign of a favorable evolution of the cancer whereas the regulatory T response is a sign of an unfavorable evolution of this cancer.
- Detection is performed from a biological sample containing CD4 + and / or CD8 + T cells, including a sample of mononuclear cells isolated from a peripheral blood sample (PBMCs).
- PBMCs peripheral blood sample
- Midkine-specific CD4 + and / or CD8 + T cells are detected by any means, known per se.
- direct means such as flow cytometry in the presence of multimeric complexes as defined above, or indirect means such as lymphocyte proliferation assays, cell cytotoxicity assays and cytokine assays.
- lymphocyte proliferation assays such as IL-2, IL-4, IL-5, IL-10 and IFN-gamma
- IL-2, IL-4, IL-5, IL-10 and IFN-gamma in particular by immunoenzymatic techniques (ELISA, RIA, ELISPOT) or by flow cytometry (assay of intracellular cytokines).
- a cell suspension (PBMC, PBMC depleted in CD4 + or CD8 + cells, T lymphocytes previously enriched by an in vitro culture step with the peptides as defined above or cloned T lymphocytes) is placed in the presence of said peptides and if necessary.
- appropriate presenting cells such as dendritic cells, autologous or heterologous PBMCs, lymphoblastoid cells such as those obtained after infection with EBV or genetically modified cells.
- the presence of Midkine-specific CD4 + and / or CD8 + T cells in the initial suspension is detected using the peptides, by one of the following methods:
- the proliferation of Midkine-specific CD4 + and / or CD8 + T cells is measured by incorporation of tritiated thymidine into the DNA of the cells.
- ELISPOT test makes it possible to reveal the presence of cytokine secreting T cells (IL-2, IL-4, IL-5, IL-10, IFN- ⁇ , TNF- ⁇ and TGF- ⁇ ) specific for a peptide as defined above.
- the principle of this test is described in Czerkinsky et al. , J. Immunol. Methods, 1983, 65, 109-121 and Schstoff et al, J. Immunol. Methods, 1997, 210, 167-174, and its implementation is illustrated in International Application WO 99/51630 or Gahéry-Ségard et al., J. Viral., 2000, 74, 1694-1703.
- cytokine-secreting midkine-specific T cells IL-2, IL-4, IL-5, IL-10, IFN-gamma, TNF- ⁇ and TGF- ⁇
- cytokine assay present in the culture supernatant, by an enzymatic immunoassay, in particular using a commercial kit, or by detection of intracellular cytokines in flow cytometry.
- the principle of detection of intracellular cytokines is described in Goulder et al. , J. Exp. Med., 2000, 192, 1819-1832 and Maecker et al, J. Immunol. Methods, 2001, 255, 27-40 and its implementation is illustrated in Draenert et al, J. Immunol. Methods, 2003, 275, 19-29. * multimeric complexes
- a biological sample preferably peripheral blood mononuclear cells (PBMC)
- PBMC peripheral blood mononuclear cells
- marked multimeric complexes in particular with a fluorochrome, formed by the binding between soluble HLA molecules and peptides as defined above and the cells labeled with said multimeric complexes are analyzed, in particular by flow cytometry.
- PBMC peripheral blood mononuclear cells
- the biological sample prior to bringing the biological sample into contact with said complexes, it is enriched in CD4 + T cells and / or CD8 + T cells, by bringing it into contact with anti-CD4 or anti-CD8 antibodies.
- the HLA / peptide multimeric complexes can be prepared from native molecules extracted from cells expressing an HLA I molecule and or
- HLA can in particular be truncated (deletion of the transmembrane domain) and their sequence can be modified in order to make them soluble or to facilitate the pairing of alpha and beta chains (Novak et al, cited above).
- the loading of HLA molecules with the peptide can be done by contacting a preparation of HLA molecules as above, with the peptide.
- soluble and biotinylated HLA molecules are incubated, for 72 hours at 37 ° C., with a 10-fold excess of peptides as defined above, in a 10 mM phosphate-citrate buffer, 0.15 NaCl. M at a pH of between 4.5 and 7.
- the peptide sequence can be introduced into one of the chains of the HLA molecule as a fusion protein that allows the preparation of HLA / peptide multimeric complexes from appropriate host cells expressing said fusion protein. Said complexes can then be labeled, in particular with biotin.
- the multimeric complexes of tetramer type are obtained in particular by adding to the charged HLA molecules, streptavidin labeled with a fluorochrome in a quantity four times smaller (mole to mole) relative to the molecules.
- the assembly is then incubated for a sufficient time, for example overnight at room temperature.
- the multimeric complexes can also be formed, either by incubation of HLA / peptide monomers with streptavidin-coupled magnetic beads as described for HLA I molecules (Bodinier et al., Nature,
- HLA / peptide monomers into vesicles lipids as described for murine class II MHC molecules (Prakken, Nature Medicine, 2000, 6, 1406-1410).
- HLA / peptide complexes especially of the tetramer type, a suspension of cells (PBMC, PBMC depleted in CD4 + and / or CD8 + cells, T lymphocytes previously enriched by an in vitro culture step with peptides such as defined above or cloned T lymphocytes) with HLA / peptide multimeric complexes at a suitable concentration (for example of the order of 10 to 20 ⁇ g / ml), for a time sufficient to allow the binding between the complexes and the Midkine-specific CD4 + and / or CD8 + T cells (e.g., on the order of 1 to 3 hours).
- PBMC PBMC depleted in CD4 + and / or CD8 + cells
- T lymphocytes previously enriched by an in vitro culture step with peptides such as defined above or cloned T lymphocytes
- HLA / peptide multimeric complexes at a suitable concentration (for example of the order of 10 to 20
- the present invention also relates to an immunomonitoring reagent comprising at least one peptide as defined above.
- said reagent is included in a box (kit).
- Said immunomonitoring reagent advantageously comprises a peptide or a fusion protein as defined above, optionally labeled or complexed, in particular complexed with labeled HLA molecules, for example biotinylated, in the form of multimeric HLA / peptide complexes such as tetramers. of HLA / peptide complexes, labeled.
- Another subject of the present invention is therefore a method for analyzing Midkine-specific CD4 + and / or CD8 + T lymphocytes, characterized in that it comprises at least the following steps:
- the analysis of the cells comprises the sorting of said cells.
- the present invention further relates to a peptide fragment derived from Midkine, a multiepitopic peptide, a fusion protein, a lipopeptide, as defined above.
- the present invention also relates to a polynucleotide, an expression cassette, a recombinant vector, a prokaryotic or modified eukaryotic host cell derived from the preceding peptides / protein.
- the invention encompasses in particular: a) expression cassettes comprising at least one polynucleotide as defined above, under the control of appropriate transcriptional regulatory and possibly translational sequences (promoter, enhancer, intron, codon of initiation (ATG), stop codon, polyadenylation signal), and b) recombinant vectors comprising a polynucleotide according to the invention.
- these vectors are expression vectors comprising at least one expression cassette as defined above.
- the polynucleotides, the recombinant vectors and the transformed cells as defined above are especially useful for the production of the peptides, multiepitopic fragments and fusion proteins according to the invention.
- the polynucleotides according to the invention are obtained by conventional methods, known per se, following the standard protocols such as those described in Current Protocols in Molecular Biology (Frederick M. A USUBEL, 2000, Wiley and Son Inc., Library of Congress, USA). For example, they can be obtained by amplification of a nucleic sequence by PCR or RT-PCR, by screening genomic DNA libraries by hybridization with a homologous probe, or by total or partial chemical synthesis.
- Recombinant vectors are constructed and introduced into host cells by conventional methods of recombinant DNA and genetic engineering, which are known per se.
- peptides and their derivatives are prepared by standard techniques known to those skilled in the art, in particular by solid or liquid phase synthesis or by expression of a recombinant DNA in a suitable cellular system (eukaryote or prokaryote). More precisely:
- peptides and their derivatives can be synthesized in solid phase, according to the Fmoc technique, originally described by Merrifield et al. (J. Am Chem Soc., 1964, 85: 2149-) and purified by reverse phase high performance liquid chromatography,
- the lipopeptides may especially be prepared according to the process described in International Applications WO 99/40113 or WO 99/51630.
- the peptides and derivatives such as the variants, the multiepitopic fragments and the fusion proteins can also be produced from the corresponding cDNAs, obtained by any means known to those skilled in the art; the cDNA is cloned into a eukaryotic or prokaryotic expression vector and the protein or fragment produced in the cells modified with the recombinant vector are purified by any appropriate means, in particular by affinity chromatography.
- FIG. 2 illustrates the peptide specificity of CD8 + T lymphocytes induced against the peptides of Midkine.
- T cell lines (267.29A, 278.1 IA, 314.28) were obtained by stimulation of T cells from three healthy individuals expressing HLA-A2 (267, 278, 314). After 4 weeks of culture, their specificity was tested by Elispot IFN- ⁇ .
- FIG. 3 illustrates the restriction to HLA-A2 of CD8 + T lymphocytes specific for Midkine peptides.
- the restriction was evaluated by Elispot IFN- ⁇ , using C 1 R and C 1 R-A2 cells (C 1 R transfected with HLA-A2).
- FIG. 4 illustrates the recognition of cells transfected with a Midkine expression plasmid by CD8 + T lymphocytes specific for peptides of Midkine.
- C1R-A2 cells were transfected with a recombinant pcDNA3.1 plasmid containing the midkine coding sequence (pMDK).
- pMDK midkine coding sequence
- Activation of CD8 + T cells by pMDK-transfected or non-transfected C1R-A2 cells was assessed by Elispot IFN- ⁇ .
- - Figure 5 illustrates the expression of midkine in tumor cells. Expression of Midkine was assessed in C1R-A2, DLD-I and Hep G2 cells by flow cytometry using an anti-Midkine antibody.
- Gray surface negative control. Area under the black line: natural expression of Midkine.
- Black surface Expression of midkine after transfection of cells by a Midkine expression plasmid.
- FIG. 6 illustrates the recognition of tumor lines by CD8 + T lymphocytes specific for Midkine peptides. Recognition of tumors was tested by IFN- ⁇ Elispot using cell HLA-A2 "1" CIR-A2 (MDK "), DLD-I (MDK”) and Hep G2 (MDK +). The cells marked with a star were cultured in the presence of IFN- ⁇ .
- FIG. 7 illustrates the detection of Midkine-specific CD8 + T lymphocytes by labeling with specific tetramers.
- T cell lines 314.7 (A and C) and 314.28 (B and D) are specific for the MDK 114-122 and MDK 13-21 peptides, respectively.
- Each line was labeled with anti-CD8 antibody and HLA-A2 / MDK1 14-122 (A and B) and HLA-A2 / MDK13-21 (C and D) tetramers and analyzed by flow cytometry. The percentage of each cell population is indicated in each quadrant.
- FIG. 8 illustrates the restriction to HLA II of the CD4 + T lymphocytes specific for the peptide 9-23 of Midkine.
- the restriction was evaluated by Elispot IFN- ⁇ , using L cells transfected with an HLA II molecule (HLA-DR7, -DRl 1, -DRl 5, -DRB5) and loaded with the peptide 9-23.
- FIG. 9 illustrates the detection of the recognition of tumor lysates by the T 331.24 line of CD4 + T lymphocytes specific for the Midkine peptide 9-23. Recognition of tumors was tested by IFN- ⁇ Elispot, using HeLa cells (MDK "), HeLa-pMDK (MDK +) and Hep G2 (MDK +).
- Example 1 Induction of a Specific CD8 + T Response of Peptides of the Midkine Protein
- peptides were synthesized according to the Fmoc strategy in solid phase parallel synthesis, purified by HPLC and controlled by mass spectrometry (ES-MS). b) Obtaining CD8 + T Lines Specific for Midkine Peptides and Restricted to HLA-A2
- peripheral blood mononuclear cells PBMCs
- HLA-A2 molecule peripheral blood mononuclear cells
- the PBMCs were then cultured in AIM V (LIFE TECHNOLOGIES) medium and incubated overnight at 37 ° C in the presence of 5% CO 2 /95% air.
- CD8 + T cells were purified from non-adherent cells by immunomagnetic sorting and frozen.
- the adherent cells were differentiated into immature dendritic cells by culture for 5 days in AIM V medium containing 100 ⁇ / ml of GM-CSF and 100 ⁇ / ml of IL-4 and then in mature dendritic cells by 2 days of culture in the presence of 1 ⁇ g / ml of LPS, 1000 U / ml of IL-4 and 1000 U / ml of GM-CSF.
- the mature dendritic cells were incubated in the presence of 5 ⁇ g / ml of beta-2-microglobulin and 10 ⁇ g / ml of each of the peptides of Table IV.
- the peptide-specific CD8 + T cell lines were cultured in the presence of C1R-A2 cells transfected with a recombinant plasmid pcDNA3.1 (IN VITROGEN) comprising the coding sequence of Midkine under the control of the CMV promoter and the polyadenylation signal. bovine growth hormone. Activation of CD8 + T cells by these transfected C1R-A2 cells was assessed by ELISPOT as specified below. d) Recognition of tumor cells by CD8 + T lymphocytes specific for Midkine peptides
- CD8 + T cell lines were cultured in the presence of different tumor lines: DLD-I (ATCC® # CCL-221) and Hep G2 (ATCC® # HB-8065). The activation of CD8 + T cells by these tumor cells was evaluated by ELISPOT as specified below. e) ELISPOT
- Anti-IFN-gamma antibodies (1-D1K, MABTECH) diluted to 2.5 ⁇ g / ml in PBS buffer were adsorbed on nitrocellulose (MILLIPORE) plates for 1 hour at 37 ° C. The plates were then washed with PBS and then saturated with ISCOVE medium containing 10% human serum AB group (100 .mu.l / well) for 2 h at 37.degree.
- the antigen-presenting cells are either cells of the ClR line of lymphoblastoid B cells (Hogan et al., J. Immunol., 1988, 141, 2519-), lacking HLA-A and HLA-B molecules, transfected with the CDNA encoding HLA-A2 (C1R-A2) and loaded with a single peptide (10 ⁇ g peptide) or the mixture peptides (10 ⁇ g of each peptide), or C1R-A2 cells transfected with a Midkine expression plasmid, or else tumor cells expressing midkine.
- C1R-A2 CDNA encoding HLA-A2
- the ClR cells transfected with HLA-A2 (30,000 cells / well) and 5000 lymphocytes to be tested were then added to the plates and incubated for 24 hours. 37 ° C., in the presence or in the absence of a single peptide (10 ⁇ g of peptide) or of a mixture of peptides (10 ⁇ g of each peptide).
- the peptides are used at different concentrations ranging from 0.001 to 10 ⁇ g / mL.
- the CD8 + T cell line 267.29A is specific for peptides 12-21, 13-21, 13-22.
- the line 278.1 IA is specific for peptides 13-21, 13-22 and 14-22.
- the line 314.28 is specific for peptide 114-122 and to a lesser extent for peptide 113-122.
- the peptides 12-21, 13-21, 13-22, 14-22, 113-122 and 114-122 are therefore immunogenic and induce CD8 + T cells in healthy HLA-A2 + donors. Restriction of peptide-specific CD8 + T cell lines by the HLA-A2 molecule is shown in Figure 3. Only HLA-A2 (C1R-A2) cells can present the peptides to specific T cell lines.
- ClR cells do not stimulate them even in the presence of peptides
- C1R-A2 cells were transfected with a pcDNA3.1 plasmid recombinant comprising the Midkine coding sequence
- Figure 4 shows that CD8 + T lymphocyte 278.1 IA lines (specific for peptides 13-22 and 14-22), 297.58 (specific for peptides 12-21, 13-21 and 14- 22) and 314.48 (specific for peptide 114-122) are activated by the transfected cells and the CIR-A2 cells loaded by the peptides but not by the non-transfected cells.
- Midkine contains six peptides divided into two groups of overlapping peptides capable of inducing activation of HLA-A2 restricted CD8 + T cells that selectively recognize tumor cells expressing midkine.
- Each lymphocyte line (500,000 cells) obtained in Example 1 was labeled for 1 hour in the dark and at 4 ° C., with 50 ⁇ g / ml of tetramer in 200 ⁇ l of PBS 2% FCS.
- These tetramers are HLA-A2 molecules loaded with peptide 13-21 or 114-122, biotinylated and complexed with streptavidin labeled with phycoerythrin, prepared according to the technique previously described in NOVAK et al. (J. Clin. Investig., 1999, 104, R63-R67) or in KURODA et al. (J. Virol., 2000, 74, 18, 8751-8756).
- Peptides of 15 amino acids (15-mer) covering the entire human midkine sequence were selected according to the presence of aromatic or hydrophobic residues in position 3 or 4, for anchoring in pocket P 1 HLA-DR and HLA-DP4 molecules.
- the peptides were synthesized according to the Fmoc strategy in solid phase parallel synthesis, purified by HPLC and controlled by mass spectrometry (ES-MS).
- HLA II binding assays are binding assays in competition with enzyme immunoassay, as described in US Pat. No. 6,649,166 and PCT International Application WO 03/040299, respectively for HLA-DR and HLA molecules. -DP4.
- the implementation of these tests for measuring the binding activity of peptides derived from different antigens is illustrated in US Pat. No. 6,649,166 and PCT International Applications WO 02/090382, WO 03/040299 and WO 2004/014936.
- peptides HA 306-318 PYVKQNTLKLAT, SEQ ID NO: 31
- A3 152-166 EAEQLRA YLDGTGVE, SEQ ID NO: 32
- MT 2-16 AKTIAYDEEARRGLE, SEQ ID NO: 33.
- Bl 21-36 (TERVRLVTRHIYNREE, SEQ ID NO: 34) YKL (AAYAAAKAAALAA, SEQ ID NO: 35), LOL 191-210 (ESWGAVWRIDTPDKLTGPFT, SEQ ID NO: 36), Oxy 271-287 (EKKYFAATQFEPLAARL, SEQ ID NO: 37) and E2 / E168 (AGDLLAIETDKATI SEQ ID NO: 38), biotinylated at the NH 2 terminal residue, according to the protocol described in Texier et al., J. Immunol., 2000, 164, 3177-3184), are used as tracer under the conditions as specified in the following.
- PBMCs Peripheral blood mononuclear cells
- HLA-DR and HLA-DP genotype were previously determined by SSP, using the OLERUP SSP TM HLA-DPB1 and HLA-DRB1 kit, were separated on a Ficoll gradient.
- the PBMCs were then cultured in AIM V medium (LIFE TECHNOLOGIES) and incubated in flasks in an oven at 37 ° C. in the presence of 5% CO 2 /95% air.
- the non-adherent cells were recovered, and then the CD4 + T cells were purified using anti-CD4 antibodies coupled to magnetic beads (MYLTENYI BIOTEC kit), and frozen.
- the adherent cells were incubated for 5 days, in AIM V medium containing 1000 U / ml of GM-CSF and 1000 U / ml of IL-4, then the cells differentiated into dendritic cells (immature dendritic cells) were then cultured for 2 days, in the presence of 1 ⁇ g / ml of LPS, 1000 U / ml of IL-4 and 1000 U / ml of GM-CSF, so as to induce their maturation.
- the mature dendritic cells (100,000 cells / well) were then incubated with a mixture of peptides (10 ⁇ g of each peptide in IMDN medium (INVITROGEN) supplemented with glutamine (24 mM, SIGMA), asparagine ( 55 mM, SIGMA), arginine (150 mM, SIGMA), penicillin (50 IU / ml, INVITROGEN), streptomycin (50 mg / ml, INVITROGEN) and 10% human serum), for 4 hours at 37 ° C.
- IMDN medium IGITROGEN
- the mature dendritic cells were then washed and incubated, in the presence of CD4 + T lymphocytes (100,000 cells / well) previously thawed, in medium containing 1000 U / ml of IL-6 and 10 ng / ml of IL-12. .
- the culture was stimulated for the first time, using mature dendritic cells previously thawed and loaded with two peptide mixtures covering the entire Midkine sequence (mixture of MDK1 to MDK9 peptides and then mixing MDK1 to MDK18 peptides) in medium containing IL-2 (10 U / ml) and IL-7 (5 ng / ml).
- Anti-IFN-gamma antibodies (1-D1K, MABTECH) diluted to 2.5 ⁇ g / ml in PBS buffer were adsorbed on nitrocellulose (MILLIPORE) plates for 1 hour at 37 ° C. The plates were then washed with PBS and then saturated with ISCOVE medium containing 10% human serum AB group (100 .mu.l / well) for 2 h at 37.degree.
- the antigen presenting cells are either immature autologous dendritic cells prepared as specified above, or a mouse fibroblast line (L-line), transfected with the cDNA encoding one of the HLA-DR or HLA molecules.
- the dendritic cells (10 5 cells / well) or L cells transfected with one of the HLA-DR or HLA-DP4 molecules (30,000 cells / well) and 5000 test lymphocytes were then added to the plates and incubated 24 h at 37 ° C., in the presence or in the absence of a single peptide (10 ⁇ g) or a mixture of peptides (10 ⁇ g of each peptide).
- the tumor lines tested are the Hep G2 line which expresses the
- Midkine peptide 9-23-specific CD4 + T was incubated in the presence of dendritic cells previously loaded with lysates of tumor lines and its activation was assessed by Elispot as specified above.
- HLA class II binding sites are in the N-terminal part of midkine, i.e. in the signal peptide (1-
- peptide 9-23 binds to 8 different HLA II molecules with relative affinities often reflecting high affinity (relative activity less than 10).
- Other peptides also bind to several HLA II molecules such as peptides 1-15, 4-18, 14-28.
- the CD4 + T cell lines 331.16, 331.24 and 343.1 were obtained by in vitro stimulation of T cells using mature autologous dendritic cells loaded with two pools of peptides covering the entire midkine sequence. The study of their specificity was made by Elispot IFN- ⁇ and showed that the three lines were specific for peptide 9-23. Each line was tested by Elispot IFN- ⁇ for its ability to be stimulated by L cells transfected with an HLA-DR or HLA-D P4 molecule and loaded with peptide 9-23.
- FIG. 8 shows that the peptide 9-23 can be presented by the DR7 molecule to the 331 donor lines (331, 16 and 331.24) and that the 343.1 line is restricted to DR1 1 but not to DR15 and DRB5.
- the CD4 + T cell line 331.24 was incubated in the presence of dendritic cells previously loaded with the lysates of tumor lines and its activation was evaluated by Elispot IFN- ⁇ .
- Figure 9 shows that the 331.24 line is stimulated by dendritic cells loaded with the lysate of transfected HeIa cells but not by the untransfected HeIa cells. This confirms the specificity of the 331.24 T cell line and its ability to recognize midkine present in the transfected cell lysate. It also recognizes midkine naturally produced by Hep G2 tumor line.
- peptide 9-23 binds to 8 different HLA II molecules and induces a specific in vitro CD4 + T response that is restricted to different class II HLA molecules.
- CD4 + T cells induced against this peptide can recognize tumor lysates expressing midkine and presented by dendritic cells. Since this peptide overlaps with the signal peptide (1-22), it can be deduced from these experiments that peptide 9-22 also has CD4 + T epitopes since the signal peptide of Midkine is cleaved in the cell between Amino acids 22 and 23.
- peptides 9-23 and 9-22 include peptides 12-21, 13-21, 13-22 and 14-22 which have CD8 + T epitopes.
- the peptides 9-23 and 9-22 may thus induce responses CD4 + and CD8 + T cells specific for tumors expressing midkine.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Immunology (AREA)
- Pharmacology & Pharmacy (AREA)
- Organic Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Urology & Nephrology (AREA)
- Epidemiology (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Cell Biology (AREA)
- Microbiology (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Biotechnology (AREA)
- General Physics & Mathematics (AREA)
- Oncology (AREA)
- Virology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Zoology (AREA)
- Endocrinology (AREA)
- Mycology (AREA)
- Diabetes (AREA)
- Reproductive Health (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2728459A CA2728459A1 (fr) | 2008-06-20 | 2009-06-19 | Peptides immunogenes issus de la proteine midkine comme vaccin anticancereux |
| AU2009261813A AU2009261813A1 (en) | 2008-06-20 | 2009-06-19 | Immunogenic peptides derived from the midkine protein, as an anticancer vaccine |
| EP09766025A EP2296697A1 (fr) | 2008-06-20 | 2009-06-19 | Peptides immunogenes issus de la proteine midkine comme vaccin anticancereux |
| JP2011514088A JP2011525108A (ja) | 2008-06-20 | 2009-06-19 | ミッドカインタンパク質に由来する抗ガンワクチンとしての免疫原性ペプチド |
| CN2009801328720A CN102123731A (zh) | 2008-06-20 | 2009-06-19 | 作为抗癌疫苗的来源于中期因子蛋白质的免疫原性肽 |
| US13/000,302 US20110159022A1 (en) | 2008-06-20 | 2009-06-20 | Immunogenic Peptides Derived from the Midkine Protein, as an Anticancer Vaccine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0803466A FR2932681B1 (fr) | 2008-06-20 | 2008-06-20 | Peptides immunogenes issus de la proteine midkine comme vaccin anticancereux |
| FR0803466 | 2008-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009153463A1 true WO2009153463A1 (fr) | 2009-12-23 |
Family
ID=40297807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2009/000744 Ceased WO2009153463A1 (fr) | 2008-06-20 | 2009-06-19 | Peptides immunogenes issus de la proteine midkine comme vaccin anticancereux |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20110159022A1 (fr) |
| EP (1) | EP2296697A1 (fr) |
| JP (1) | JP2011525108A (fr) |
| CN (1) | CN102123731A (fr) |
| AU (1) | AU2009261813A1 (fr) |
| CA (1) | CA2728459A1 (fr) |
| FR (1) | FR2932681B1 (fr) |
| WO (1) | WO2009153463A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011115562A1 (fr) * | 2010-03-18 | 2011-09-22 | Egesten Medical Consulting Hb | Composé antimicrobien |
| WO2015001526A1 (fr) | 2013-07-05 | 2015-01-08 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Peptides immunogènes de l'antigène tumoral cycline bl |
| WO2020127996A2 (fr) | 2018-12-21 | 2020-06-25 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Melanges d'epitopes t cd8+ immunogenes de la cycline b1 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014081633A1 (fr) | 2012-11-20 | 2014-05-30 | The United States Of America, As Represented By The Secretary, Department Of Health And Human Services | Dosage permettant de mesurer le taux de midkine ou de pléiotrophine pour le diagnostic d'une grosseur |
| JP6406647B2 (ja) * | 2013-07-02 | 2018-10-17 | 公益財団法人がん研究会 | 細胞性免疫誘導ワクチン |
| KR101985300B1 (ko) | 2016-07-19 | 2019-06-03 | 삼성전자주식회사 | 미드카인 저해제를 포함하는 뇌종양 치료 또는 예방용 약학 조성물 |
| JP6694220B2 (ja) * | 2018-12-21 | 2020-05-13 | 国立大学法人福井大学 | 子宮肉腫検出用血液マーカー、子宮肉腫検出用キット、および、子宮肉腫診断のためのデータの取得方法 |
| CN114404601B (zh) * | 2022-03-31 | 2022-06-07 | 首都医科大学附属北京朝阳医院 | MDK抑制剂在制备用于抑制干扰素-γ治疗引起的肿瘤转移的药物中的应用 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040219614A1 (en) * | 2000-10-30 | 2004-11-04 | Tomohiro Mitsumoto | Monoclonal antibody specific to truncated midkine (tMK) protein and uses thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0591880A (ja) * | 1991-02-28 | 1993-04-16 | Nippon Koutai Kenkyusho:Kk | ヒトmk遺伝子 |
| US5734023A (en) * | 1991-11-19 | 1998-03-31 | Anergen Inc. | MHC class II β chain/peptide complexes useful in ameliorating deleterious immune responses |
| US6420518B1 (en) * | 1997-04-04 | 2002-07-16 | Genetech, Inc. | Insulin-like growth factor agonist molecules |
| ES2534752T3 (es) * | 2004-12-07 | 2015-04-27 | Toray Industries, Inc. | Nuevo péptido antigénico contra el cáncer y utilización del mismo |
| WO2007066423A1 (fr) * | 2005-12-08 | 2007-06-14 | Dainippon Sumitomo Pharma Co., Ltd. | Peptide d'antigene tumoral derive d'amacr |
| JPWO2007119515A1 (ja) * | 2006-03-28 | 2009-08-27 | 昇志 佐藤 | 新規腫瘍抗原ペプチド |
-
2008
- 2008-06-20 FR FR0803466A patent/FR2932681B1/fr not_active Expired - Fee Related
-
2009
- 2009-06-19 CN CN2009801328720A patent/CN102123731A/zh active Pending
- 2009-06-19 CA CA2728459A patent/CA2728459A1/fr not_active Abandoned
- 2009-06-19 WO PCT/FR2009/000744 patent/WO2009153463A1/fr not_active Ceased
- 2009-06-19 AU AU2009261813A patent/AU2009261813A1/en not_active Abandoned
- 2009-06-19 EP EP09766025A patent/EP2296697A1/fr not_active Withdrawn
- 2009-06-19 JP JP2011514088A patent/JP2011525108A/ja active Pending
- 2009-06-20 US US13/000,302 patent/US20110159022A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040219614A1 (en) * | 2000-10-30 | 2004-11-04 | Tomohiro Mitsumoto | Monoclonal antibody specific to truncated midkine (tMK) protein and uses thereof |
Non-Patent Citations (4)
| Title |
|---|
| HIDAKA HIROKAZU ET AL: "Increased midkine gene expression in childhood B-precursor acute lymphoblastic leukemia.", LEUKEMIA RESEARCH AUG 2007, vol. 31, no. 8, August 2007 (2007-08-01), pages 1045 - 1051, XP002513652, ISSN: 0145-2126 * |
| MAEDA S ET AL: "Clinical significance of midkine expression in pancreatic head carcinoma.", BRITISH JOURNAL OF CANCER 6 AUG 2007, vol. 97, no. 3, 6 August 2007 (2007-08-06), pages 405 - 411, XP002513654, ISSN: 0007-0920 * |
| MOON HYE-SUNG ET AL: "Immunohistochemical and quantitative competitive PCR analyses of midkine and pleiotrophin expression in cervical cancer.", GYNECOLOGIC ONCOLOGY MAR 2003, vol. 88, no. 3, March 2003 (2003-03-01), pages 289 - 297, XP002513653, ISSN: 0090-8258 * |
| REN YING-JIA ET AL: "Expression of midkine and its clinical significance in esophageal squamous cell carcinoma.", WORLD JOURNAL OF GASTROENTEROLOGY : WJG 7 APR 2006, vol. 12, no. 13, 7 April 2006 (2006-04-07), pages 2006 - 2010, XP002513655, ISSN: 1007-9327 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011115562A1 (fr) * | 2010-03-18 | 2011-09-22 | Egesten Medical Consulting Hb | Composé antimicrobien |
| WO2015001526A1 (fr) | 2013-07-05 | 2015-01-08 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Peptides immunogènes de l'antigène tumoral cycline bl |
| WO2020127996A2 (fr) | 2018-12-21 | 2020-06-25 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Melanges d'epitopes t cd8+ immunogenes de la cycline b1 |
| FR3090319A1 (fr) | 2018-12-21 | 2020-06-26 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Melanges d’epitopes t cd8+ immunogenes de la cycline b1 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110159022A1 (en) | 2011-06-30 |
| JP2011525108A (ja) | 2011-09-15 |
| FR2932681A1 (fr) | 2009-12-25 |
| CA2728459A1 (fr) | 2009-12-23 |
| AU2009261813A1 (en) | 2009-12-23 |
| EP2296697A1 (fr) | 2011-03-23 |
| FR2932681B1 (fr) | 2012-08-31 |
| CN102123731A (zh) | 2011-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11707512B2 (en) | Cancer vaccine composition | |
| US9687539B2 (en) | CD4+ T survivin epitopes and uses thereof | |
| CA2480696C (fr) | Epitopes peptidiques communs a des antigenes d'une meme famille multigenique | |
| EP2296697A1 (fr) | Peptides immunogenes issus de la proteine midkine comme vaccin anticancereux | |
| EP3016974B1 (fr) | Peptides immunogènes de l'antigène tumoral cycline b1 | |
| WO2007026078A2 (fr) | Epitopes t cd4+ des antigenes mage-a restreints a hla-dp4 et leurs applications | |
| WO2020127996A2 (fr) | Melanges d'epitopes t cd8+ immunogenes de la cycline b1 | |
| HK1159488A (en) | Immunogenic peptides derived from the midkine protein, as an anticancer vaccine | |
| HK1143552A (en) | Cancer vaccine composition | |
| HK1261028A1 (en) | Cancer vaccine composition | |
| HK1143552B (en) | Cancer vaccine composition | |
| HK1261028B (en) | Cancer vaccine composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 200980132872.0 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09766025 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2728459 Country of ref document: CA |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2011514088 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2009261813 Country of ref document: AU |
|
| ENP | Entry into the national phase |
Ref document number: 2009261813 Country of ref document: AU Date of ref document: 20090619 Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2009766025 Country of ref document: EP |





