PMID- 32040618 OWN - NLM STAT- MEDLINE DCOM- 20200921 LR - 20200921 IS - 1436-2813 (Electronic) IS - 0941-1291 (Linking) VI - 50 IP - 8 DP - 2020 Aug TI - Prognostic impact of CD8+ T cell distribution and its association with the HLA class I expression in intrahepatic cholangiocarcinoma. PG - 931-940 LID - 10.1007/s00595-020-01967-y [doi] AB - PURPOSE: A lack of effective systemic therapy is one reason for the poor prognosis of intrahepatic cholangiocarcinoma. Newly developed immune checkpoint inhibitors function by minimizing CD8+ T cell suppression to improve tumor-specific responses. This study aimed to examine the characteristics of CD8+ T cells in intrahepatic cholangiocarcinoma. METHODS: Clinicopathological data, including the overall survival, of 69 cases of postoperative intrahepatic cholangiocarcinoma were prospectively investigated. We then immunohistochemically stained for CD8, Foxp3, CD163, PD-L1, and human leukocyte antigen (HLA) class I and counted the number of CD8+ T cells, Foxp3+ T cells, and CD163+ macrophages in different areas (outer border, interborder, and intratumor). RESULTS: A significant difference was found in the 5-year overall survival between the CD8+ T cell high group (45.5%) and low group (24.7%) in the outer border area (p = 0.0103). Furthermore, the number of CD8+ T cells and the high expression of HLA class I were positively correlated (p = 0.0341). CONCLUSION: The number of CD8+ T cells in the outer border area of the tumor correlated with the HLA class I expression of intrahepatic cholangiocarcinoma and may therefore be a prognostic factor for patients with postoperative intrahepatic cholangiocarcinoma. FAU - Asahi, Yoh AU - Asahi Y AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Hatanaka, Kanako C AU - Hatanaka KC AD - Clinical Biobank, Clinical Research and Medical Innovation Center, Hokkaido University Hospital, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Hatanaka, Yutaka AU - Hatanaka Y AD - Research Division of Genome Companion Diagnostics, Hokkaido University Hospital, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Kamiyama, Toshiya AU - Kamiyama T AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Orimo, Tatsuya AU - Orimo T AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Shimada, Shingo AU - Shimada S AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Nagatsu, Akihisa AU - Nagatsu A AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Sakamoto, Yuzuru AU - Sakamoto Y AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Kamachi, Hirofumi AU - Kamachi H AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Kobayashi, Nozomi AU - Kobayashi N AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Fukai, Moto AU - Fukai M AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. FAU - Taketomi, Akinobu AU - Taketomi A AD - Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Kita-ku, Kita 15, Nishi 7, Sapporo, Hokkaido, 060-8638, Japan. taketomi@med.hokudai.ac.jp. LA - eng PT - Journal Article DEP - 20200210 PL - Japan TA - Surg Today JT - Surgery today JID - 9204360 RN - 0 (Histocompatibility Antigens Class I) SB - IM MH - Bile Duct Neoplasms/*genetics/*immunology/mortality/surgery MH - Biliary Tract Surgical Procedures MH - CD8-Positive T-Lymphocytes/*immunology MH - Cholangiocarcinoma/*genetics/*immunology/mortality/surgery MH - Female MH - *Gene Expression MH - Histocompatibility Antigens Class I/*genetics/*metabolism MH - Humans MH - Male MH - Middle Aged MH - Prognosis MH - Survival Rate OTO - NOTNLM OT - CD8+ T cell OT - Cholangiocarcinoma OT - HLA class I OT - Intrahepatic cholangiocarcinoma OT - PD-L1 EDAT- 2020/02/11 06:00 MHDA- 2020/09/22 06:00 CRDT- 2020/02/11 06:00 PHST- 2019/11/11 00:00 [received] PHST- 2020/01/10 00:00 [accepted] PHST- 2020/02/11 06:00 [pubmed] PHST- 2020/09/22 06:00 [medline] PHST- 2020/02/11 06:00 [entrez] AID - 10.1007/s00595-020-01967-y [pii] AID - 10.1007/s00595-020-01967-y [doi] PST - ppublish SO - Surg Today. 2020 Aug;50(8):931-940. doi: 10.1007/s00595-020-01967-y. Epub 2020 Feb 10.