Immunotherapy against neuronal and brain tumors
The present invention relates to peptides, nucleic acids and cells for use in immunotherapeutic methods. In particular, the present invention relates to the immunotherapy of cancer. The present invention furthermore relates to tumor-associated cytotoxic T cell (CTL) peptide epitopes, alone or in combination with other tumor-associated peptides that serve as active pharmaceutical ingredients of vaccine compositions that stimulate anti-tumor immune responses. The present invention relates to 11 novel peptide sequences and their variants derived from HLA class I and class II molecules of human tumor cells that can be used in vaccine compositions for eliciting anti-tumor immune responses.
1. A method of treating a patient who has glioblastoma, comprising administering to said patient a population of activated CD8+cytotoxic T cells that kill the cancer cells that aberrantly present a peptide consisting of the amino acid sequence selected from SEQ ID NOs: 1, 2, 4, and 6-11 on the cell surface, wherein the peptide is in a complex with an WIC class I molecule, wherein the activated CD8+cytotoxic T cells are autologous to the patient, wherein the activated CD8+cytotoxic T cells are produced by contacting T cells in vitro with an antigen presenting cell comprising the peptide in a complex with an WIC class I molecule on the surface of the antigen presenting cell, for a period of time sufficient to activate said T cell.
2. The method of claim 1 , wherein the activated CD8+cytotoxic T cells are obtained from tumor infiltrating lymphocytes or peripheral blood mononuclear cells.
3. The method of claim 1 , wherein the population of activated T cells are administered in the form of a composition.
4. The method of claim 3 , wherein the composition further comprises an adjuvant.
5. The method of claim 4 , wherein the adjuvant is selected from anti-CD40 antibody, imiquimod, resiquimod, GM-CSF, cyclophosphamide, sunitinib interferon-alpha, interferon-beta, CpG oligonucleotides and derivatives, poly-(I:C) and derivatives, RNA, sildenafil, particulate formulations with poly(lactide co-glycolide) (PLG), virosomes, interleukin (IL)-1, IL-2, IL-4, IL-5, IL-7, IL-10, IL-12, IL-15, and IL-23.
6. The method of claim 5 , wherein the adjuvant comprises IL-2.
7. The method of claim 5 , wherein the adjuvant comprises IL-7.
8. The method of claim 5 , wherein the adjuvant comprises IL-12.
9. The method of claim 5 , wherein the adjuvant comprises IL-15.
10. The method of claim 5 , wherein the adjuvant comprises IL-21.
11. The method of claim 1 , wherein the antigen presenting cell is infected with a recombinant virus expressing the peptide.
12. The method of claim 11 , wherein the antigen presenting cell is a dendritic cell or a macrophage.
13. The method of claim 1 , wherein the MHC class I molecule is HLA-A*02.
14. The method of claim 1 , wherein the activated CD8+cytotoxic T cells are isolated from tumor infiltrating lymphocytes.
15. The method of claim 1 , wherein the activated CD8+cytotoxic T cells are isolated from peripheral blood mononuclear cells.
16. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 1.
17. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 2.
18. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 4.
19. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 6.
20. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 7.
21. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 8.
22. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 9.
23. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 10.
24. The method of claim 1 , wherein the peptide consists of the amino acid sequence of SEQ ID NO: 11.
25. A method of treating a patient who has glioblastoma, comprising administering to said patient a population of activated CD8+cytotoxic T cells that kill the cancer cells that aberrantly present a peptide consisting of the amino acid sequence selected from SEQ ID NOs: 1, 2, 4, and 6-11 on the cell surface, wherein the peptide is in a complex with an WIC class I molecule, wherein the activated CD8+cytotoxic T cells are obtained from a healthy donor, wherein the activated CD8+cytotoxic T cells are produced by contacting T cells in vitro with an antigen presenting cell comprising the peptide in a complex with an WIC class I molecule on the surface of the antigen presenting cell, for a period of time sufficient to activate said T cell.
26. A method of treating a patient who has glioblastoma, comprising administering to said patient a population of activated CD8+cytotoxic T cells that kill the cancer cells that aberrantly present a peptide consisting of the amino acid sequence selected from SEQ ID NOs: 1, 2, 4, and 6-11 on the cell surface, wherein the peptide is in a complex with an WIC class I molecule, wherein the activated CD8+cytotoxic T cells are expanded in vitro, wherein the activated CD8+cytotoxic T cells are produced by contacting T cells in vitro with an antigen presenting cell comprising the peptide in a complex with an MHC class I molecule on the surface of the antigen presenting cell, for a period of time sufficient to activate said T cell.
27. The method of claim 26 , wherein the expansion is in the presence of an anti-CD28 antibody and IL-12.