PMID- 25324403 OWN - NLM STAT- MEDLINE DCOM- 20150723 LR - 20201219 IS - 2326-6074 (Electronic) IS - 2326-6066 (Linking) VI - 2 IP - 12 DP - 2014 Dec TI - Prognostic impact of human leukocyte antigen class I expression and association of platinum resistance with immunologic profiles in epithelial ovarian cancer. PG - 1220-9 LID - 10.1158/2326-6066.CIR-14-0101 [doi] AB - Epithelial ovarian cancer (EOC) is one of the most deadly carcinomas in females. Immune systems can recognize EOCs; however, a defect of human leukocyte antigen (HLA) class I expression is known to be a major mechanism for escape from immune systems, resulting in poor prognosis. The purpose of this study is to identify novel correlations between immunologic responses and other clinical factors. We investigated the expression of immunologic components in 122 cases of EOCs for which surgical operations were performed between 2001 and 2011. We immunohistochemically stained EOC specimens using an anti-pan HLA class I monoclonal antibody (EMR8-5) and anti-CD3, -CD4, and -CD8 antibodies, and we analyzed correlations between immunologic parameters and clinical factors. In multivariate analysis that used the Cox proportional hazards model, independent prognostic factors for overall survival in advanced EOCs included low expression level of HLA class I [risk ratio (RR), 1.97; 95% confidence interval (CI), 1.01-3.83; P = 0.046] and loss of intraepithelial cytotoxic T lymphocyte (CTL) infiltration (RR, 2.11; 95% CI, 1.06-4.20; P = 0.033). Interestingly, almost all platinum-resistant cases showed a significantly low rate of intraepithelial CTL infiltration in the chi(2) test (positive vs. negative: 9.0% vs. 97.7%; P < 0.001). Results from a logistic regression model revealed that low CTL infiltration rate was an independent factor of platinum resistance in multivariate analysis (OR, 3.77; 95% CI, 1.08-13.12; P = 0.037). Platinum-resistant EOCs show poor immunologic responses. The immune escape system of EOCs may be one of the mechanisms of platinum resistance. CI - (c)2014 American Association for Cancer Research. FAU - Mariya, Tasuku AU - Mariya T AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan. mariya.tasuku@sapmed.ac.jp hirohash@sapmed.ac.jp torigoe@sapmed.ac.jp. FAU - Hirohashi, Yoshihiko AU - Hirohashi Y AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. mariya.tasuku@sapmed.ac.jp hirohash@sapmed.ac.jp torigoe@sapmed.ac.jp. FAU - Torigoe, Toshihiko AU - Torigoe T AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. mariya.tasuku@sapmed.ac.jp hirohash@sapmed.ac.jp torigoe@sapmed.ac.jp. FAU - Asano, Takuya AU - Asano T AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Kuroda, Takafumi AU - Kuroda T AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Yasuda, Kazuyo AU - Yasuda K AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Mizuuchi, Masahito AU - Mizuuchi M AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Sonoda, Tomoko AU - Sonoda T AD - Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Saito, Tsuyoshi AU - Saito T AD - Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Sato, Noriyuki AU - Sato N AD - Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141016 PL - United States TA - Cancer Immunol Res JT - Cancer immunology research JID - 101614637 RN - 0 (Antineoplastic Agents) RN - 0 (Histocompatibility Antigens Class I) RN - 49DFR088MY (Platinum) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Antineoplastic Agents/*pharmacology/therapeutic use MH - Carcinoma, Ovarian Epithelial MH - Drug Resistance, Neoplasm/*genetics MH - Female MH - *Gene Expression Regulation, Neoplastic MH - Histocompatibility Antigens Class I/*genetics/*immunology MH - Humans MH - Middle Aged MH - Neoplasm Metastasis MH - Neoplasm Staging MH - Neoplasms, Glandular and Epithelial/drug therapy/*genetics/*immunology/mortality/pathology MH - Ovarian Neoplasms/drug therapy/*genetics/*immunology/mortality/pathology MH - Platinum/*pharmacology/therapeutic use MH - Prognosis MH - Risk Factors EDAT- 2014/10/18 06:00 MHDA- 2015/07/24 06:00 CRDT- 2014/10/18 06:00 PHST- 2014/10/18 06:00 [entrez] PHST- 2014/10/18 06:00 [pubmed] PHST- 2015/07/24 06:00 [medline] AID - 2326-6066.CIR-14-0101 [pii] AID - 10.1158/2326-6066.CIR-14-0101 [doi] PST - ppublish SO - Cancer Immunol Res. 2014 Dec;2(12):1220-9. doi: 10.1158/2326-6066.CIR-14-0101. Epub 2014 Oct 16.