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  • Title: Identification of three non-VNTR MUC1-derived HLA-A*0201-restricted T-cell epitopes that induce protective anti-tumor immunity in HLA-A2/K(b)-transgenic mice.
    Author: Heukamp LC, van der Burg SH, Drijfhout JW, Melief CJ, Taylor-Papadimitriou J, Offringa R.
    Journal: Int J Cancer; 2001 Feb 01; 91(3):385-92. PubMed ID: 11169964.
    Abstract:
    The human epithelial mucin MUC1 is over-expressed in more than 90% of carcinomas of the breast, ovary, and pancreas as well as in some other tumours, making it a potential target for tumour immunotherapy. We have identified several MUC1-derived peptides mapping outside the variable number tandem repeat region that comply with the peptide-binding motif for HLA-A*0201 and that become processed into stable major histocompatibility complex-peptide complexes as assessed by in vitro assays. In A2/K(b) transgenic mice, 3 peptides, namely MUC(79-87) (TLAPATEPA), MUC(167-175) (ALGSTAPPV) and MUC(264-272) (FLSFHISNL) elicit peptide-specific cytotoxic T lymphocyte (CTL) immunity, which protects these mice against a challenge with MUC1, A2/K(b)-expressing tumour cells. These peptides therefore represent naturally processed MUC1-derived CTL epitopes that could be used as components in peptide-based vaccines and for the analysis of anti-MUC1 CTL responses in A*0201-positive patients with MUC1-expressing tumours.
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