PMID- 23611358 OWN - NLM STAT- MEDLINE DCOM- 20131223 LR - 20181202 IS - 1365-2559 (Electronic) IS - 0309-0167 (Linking) VI - 62 IP - 6 DP - 2013 May TI - The prognostic impact of human leukocyte antigen (HLA) class I antigen abnormalities in salivary gland cancer. A clinicopathological study of 288 cases. PG - 847-59 LID - 10.1111/his.12086 [doi] AB - AIMS: To study abnormalities of proteins of the major histocompatibility complex class I in a series of 288 salivary gland carcinomas, and to correlate findings with patients' overall survival (OS). METHODS AND RESULTS: Protein expression of human leukocyte antigen (HLA)-A, heavy chain (HC)-10, beta2 -microglobulin, low molecular weight polypeptides (LMP) 2 and 7, transporters associated with antigen processing (TAP) 1 and 2, calnexin, calreticulin, endoplasmic reticulum (ER) p57 and tapasin was evaluated by immunohistochemistry and semiquantitatively analyzed. As compared with normal salivary gland tissue, HLA-A, LMP7, TAP2 and HLA class I were significantly down-regulated in salivary gland carcinomas, whereas beta2 -microglobulin, calnexin, LMP2, and TAP1 were upregulated. Expression of calreticulin, ERp57 and tapasin was unaltered. In univariate Kaplan-Meier analyses, low expression of LMP7 (P = 0.005) and high expression of beta2 -microglobulin (P = 0.028), HLA-A (P < 0.001), TAP1 (P = 0.01), and tapasin (P < 0.001) were significantly associated with shorter OS. In multivariate analysis incorporating tumour stage, nodal/distant metastasis, and grade, HLA-A (P = 0.014), LMP7 (P = 0.033), and tapasin (P = 0.024), as well as distant metastasis (P = 0.012) and high tumour grade (P < 0.001), remained statistically significant. CONCLUSION: The prognostic influence of up-regulated HLA-A and tapasin and down-regulated LMP7 may provide a rationale for targeting these specific components of the antigen processing and presentation pathway in salivary gland carcinomas. CI - (c) 2012 Blackwell Publishing Ltd. FAU - Muller, Maximilian AU - Muller M AD - Department of Pathology, University of Erlangen, Erlangen, Germany. FAU - Agaimy, Abbas AU - Agaimy A FAU - Zenk, Johannes AU - Zenk J FAU - Ettl, Tobias AU - Ettl T FAU - Iro, Heinrich AU - Iro H FAU - Hartmann, Arndt AU - Hartmann A FAU - Seliger, Barbara AU - Seliger B FAU - Schwarz, Stephan AU - Schwarz S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Histopathology JT - Histopathology JID - 7704136 RN - 0 (ATP Binding Cassette Transporter, Subfamily B, Member 2) RN - 0 (ATP Binding Cassette Transporter, Subfamily B, Member 3) RN - 0 (ATP-Binding Cassette Transporters) RN - 0 (HLA-A Antigens) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (TAP1 protein, human) RN - 0 (beta 2-Microglobulin) RN - 139873-08-8 (Calnexin) RN - 144416-78-4 (LMP-2 protein) RN - 145892-13-3 (TAP2 protein, human) RN - EC 3.4.22.- (Cysteine Endopeptidases) RN - EC 3.4.25.1 (LMP7 protein) RN - EC 3.4.25.1 (Proteasome Endopeptidase Complex) SB - IM MH - ATP Binding Cassette Transporter, Subfamily B, Member 2 MH - ATP Binding Cassette Transporter, Subfamily B, Member 3 MH - ATP-Binding Cassette Transporters/metabolism MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Antigen Presentation MH - Calnexin/metabolism MH - Child MH - Cysteine Endopeptidases/metabolism MH - Female MH - HLA-A Antigens/metabolism MH - Histocompatibility Antigens Class I/*metabolism MH - Humans MH - Kaplan-Meier Estimate MH - Male MH - Middle Aged MH - Prognosis MH - Proteasome Endopeptidase Complex/metabolism MH - Salivary Gland Neoplasms/*immunology/*pathology MH - Tissue Array Analysis MH - Young Adult MH - beta 2-Microglobulin/metabolism EDAT- 2013/04/25 06:00 MHDA- 2013/12/24 06:00 CRDT- 2013/04/25 06:00 PHST- 2012/07/15 00:00 [received] PHST- 2012/12/14 00:00 [accepted] PHST- 2013/04/25 06:00 [entrez] PHST- 2013/04/25 06:00 [pubmed] PHST- 2013/12/24 06:00 [medline] AID - 10.1111/his.12086 [doi] PST - ppublish SO - Histopathology. 2013 May;62(6):847-59. doi: 10.1111/his.12086.