PMID- 20592351 OWN - NLM STAT- MEDLINE DCOM- 20100713 LR - 20101118 IS - 1791-7530 (Electronic) IS - 0250-7005 (Linking) VI - 30 IP - 5 DP - 2010 May TI - Coexpression of MAGE-A peptides and HLA class I molecules in hepatocellular carcinoma. PG - 1617-23 AB - Melanoma antigen (MAGE)-A derived peptides are tumour-specific and induce a strong in vitro T-cell response, if presented with human leukocyte antigen (HLA) molecules, which are involved in T-cell-mediated immune surveillance. MAGE-A-derived peptides are recognised by autologous cytotoxic T lymphocytes. The MAGE-A expression profile of hepatocellular carcinomas (HCC) was analysed by PCR assay covering MAGE-A transcripts in 13 patients. MAGE-A peptide expression was determined using a reverse transcription-PCR method. Cryostat sections were stained with monoclonal antibodies directed against HLA class I molecules. Twelve (92.3%) out of thirteen tumours expressed one MAGE-A gene. In at least 90% of the tumours, one MAGE-A peptide was expressed. Determination of the HLA status of the tumours showed a significant loss in approximately 40% of the tumours. The tumour-specific expression of MAGE genes and antigens encoded by a MAGE-family gene may represent useful targets for tumour-specific immunotherapy in HCC patients, in addition to established treatment options. FAU - Roch, Nadine AU - Roch N AD - Department of General, Visceral and Thoracic Surgery, University Medical Centre of Hamburg-Eppendorf, Hamburg, Germany. FAU - Kutup, Asad AU - Kutup A FAU - Vashist, Yogesh AU - Vashist Y FAU - Yekebas, Emre AU - Yekebas E FAU - Kalinin, Viktor AU - Kalinin V FAU - Izbicki, Jakob R AU - Izbicki JR LA - eng PT - Journal Article PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antigens, Neoplasm) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Melanoma-Specific Antigens) RN - 0 (Neoplasm Proteins) SB - IM MH - Aged MH - Antibodies, Monoclonal/chemistry MH - Antigens, Neoplasm/*biosynthesis/metabolism MH - Carcinoma, Hepatocellular/*metabolism MH - Female MH - *Gene Expression Regulation, Neoplastic MH - Histocompatibility Antigens Class I/*biosynthesis MH - Humans MH - Immunotherapy/methods MH - Liver Neoplasms/*metabolism MH - Male MH - Melanoma-Specific Antigens MH - Middle Aged MH - Models, Biological MH - Neoplasm Proteins/*biosynthesis MH - Reverse Transcriptase Polymerase Chain Reaction EDAT- 2010/07/02 06:00 MHDA- 2010/07/14 06:00 CRDT- 2010/07/02 06:00 PHST- 2010/07/02 06:00 [entrez] PHST- 2010/07/02 06:00 [pubmed] PHST- 2010/07/14 06:00 [medline] AID - 30/5/1617 [pii] PST - ppublish SO - Anticancer Res. 2010 May;30(5):1617-23.