PMID- 16207473 OWN - NLM STAT- MEDLINE DCOM- 20051223 LR - 20201226 IS - 1522-8002 (Print) IS - 1476-5586 (Electronic) IS - 1476-5586 (Linking) VI - 7 IP - 8 DP - 2005 Aug TI - EphA2 as a glioma-associated antigen: a novel target for glioma vaccines. PG - 717-22 AB - EphA2 is a receptor tyrosine kinase and is frequently overexpressed in a wide array of advanced cancers. We demonstrate in the current study that the EphA2 protein is restrictedly expressed in primary glioblastoma multiforme and anaplastic astrocytoma tissues in comparison to normal brain tissues. To evaluate the possibility of targeting EphA2 in glioma vaccine strategies, we stimulated human leukocyte antigen (HLA) A2+ peripheral blood mononuclear cells (PBMCs) obtained from healthy donors and glioma patients with autologous dendritic cells (DCs) loaded with synthetic EphA2883-891 peptide (TLADFDPRV), which has previously been reported to induce interferon-gamma in HLA-A2+ PBMCs. Stimulated PBMCs demonstrated antigen-specific cytotoxic T lymphocyte (CTL) responses as detected by specific lysis of T2 cells loaded with the EphA2883 peptide as well as HLA-A2+ glioma cells, SNB19 and U251, that express EphA2. Furthermore, in vivo immunization of HLA-A2 transgenic HHD mice with the EphA2883-891 peptide resulted in the development of an epitope-specific CTL response in splenocytes, despite the fact that EphA2883-891 is an autoantigen in these mice. Taken together, these data suggest that EphA2883-891 may be an attractive antigen epitope for molecularly targeted glioma vaccines. FAU - Hatano, Manabu AU - Hatano M AD - Department of Neurological Surgery, University of Pittsburgh School of Medicine and University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA. FAU - Eguchi, Junichi AU - Eguchi J FAU - Tatsumi, Tomohide AU - Tatsumi T FAU - Kuwashima, Naruo AU - Kuwashima N FAU - Dusak, Jill E AU - Dusak JE FAU - Kinch, Michel S AU - Kinch MS FAU - Pollack, Ian F AU - Pollack IF FAU - Hamilton, Ronald L AU - Hamilton RL FAU - Storkus, Walter J AU - Storkus WJ FAU - Okada, Hideho AU - Okada H LA - eng GR - P01 NS040923/NS/NINDS NIH HHS/United States GR - P01 NS40923/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Neoplasia JT - Neoplasia (New York, N.Y.) JID - 100886622 RN - 0 (Antigens, Neoplasm) RN - 0 (Cancer Vaccines) RN - 0 (HLA-A2 Antigen) RN - EC 2.7.10.1 (Receptor, EphA2) SB - IM MH - Animals MH - Antigens, Neoplasm/*biosynthesis/immunology MH - Brain Neoplasms/*immunology/metabolism MH - Cancer Vaccines/*pharmacology MH - Cell Line, Tumor MH - Glioblastoma/*immunology/metabolism MH - HLA-A2 Antigen/immunology MH - Humans MH - Leukocytes, Mononuclear/immunology MH - Mice MH - Mice, Transgenic MH - Receptor, EphA2/administration & dosage/*biosynthesis/immunology MH - Spleen/cytology/drug effects/immunology MH - T-Lymphocytes, Cytotoxic/immunology PMC - PMC1501889 EDAT- 2005/10/07 09:00 MHDA- 2005/12/24 09:00 PMCR- 2005/08/01 CRDT- 2005/10/07 09:00 PHST- 2005/04/02 00:00 [received] PHST- 2005/04/28 00:00 [revised] PHST- 2005/05/03 00:00 [accepted] PHST- 2005/10/07 09:00 [pubmed] PHST- 2005/12/24 09:00 [medline] PHST- 2005/10/07 09:00 [entrez] PHST- 2005/08/01 00:00 [pmc-release] AID - 05277 [pii] AID - 10.1593/neo.05277 [doi] PST - ppublish SO - Neoplasia. 2005 Aug;7(8):717-22. doi: 10.1593/neo.05277.