Novel peptide having 4 linked ctl epitopes
AssigneeTaiho Pharmaceutical Co., Ltd.
InventorsSatoshi FUKAYA, Toshihiro OSADA, Hiroshi WADA
Life of this patent
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Abstract
This invention provides a cancer antigen peptide that can be administered to a wide range of cancer patients in the form of a peptide vaccine for cancer without the need for HLA typing and regardless of the HLA types of patients. Such peptide having 4 linked CTL epitopes is obtained by linking 4 CTL epitope peptides selected from among CTL epitope peptides derived from tumor antigen molecules that are reported to have the capacity for CTL induction via linkers.
Claims14
A peptide having 4 linked epitopes, wherein the 4 epitope peptides are selected, optionally redundantly, from the group consisting of CTL epitope peptides:
- the peptide as shown in SEQ ID NO:
- 1 (PEP1);
- the peptide as shown in SEQ ID NO:
- 2 (PEP2);
- the peptide as shown in SEQ ID NO:
- 4 (PEP4);
- the peptide as shown in SEQ ID NO:
- 5 (PEP5);
- the peptide as shown in SEQ ID NO:
- 6 (PEP6);
- the peptide as shown in SEQ ID NO:
- 7 (PEP7);
- the peptide as shown in SEQ ID NO:
- 8 (PEP8);
- the peptide as shown in SEQ ID NO:
- 9 (PEP9);
- the peptide as shown in SEQ ID NO:
- 10 (PEP10);
- the peptide as shown in SEQ ID NO:
- 13 (PEP13);
- the peptide as shown in SEQ ID NO:
- 15 (PEP15);
- the peptide as shown in SEQ ID NO:
- 17 (PEP17);
- and the peptide as shown in SEQ ID NO:
- 18 (PEP18), linked via linkers, the peptide having 4 linked epitopes optionally comprise other peptide sequences consisting of hydrophilic amino acids, and the peptide having 4 linked epitopes has one or more features selected from the features (1) to (5) below:
- (1) the peptide comprises PEP2 at the C terminus (except for the peptide comprising PEP7 and PEP8 at the N terminus successively disposed in such order from the N terminus via a linker);
- (2) the peptide comprises PEP4 at the C terminus;
- (3) the peptide comprises PEP10 at the C terminus;
- (4) the peptide comprises PEP6 and PEP5 at the C terminus successively disposed in such order from the N terminus via a linker;
- and
- (5) the peptide comprises PEP5, PEP6, PEP9, and PEP18.
Dependencies are inferred from the claim text.