PMID- 31620857 OWN - NLM STAT- MEDLINE DCOM- 20191127 LR - 20240426 IS - 1432-0851 (Electronic) IS - 0340-7004 (Print) IS - 0340-7004 (Linking) VI - 68 IP - 11 DP - 2019 Nov TI - Clinicopathologic significance of human leukocyte antigen class I expression in patients with stage II and III gastric cancer. PG - 1779-1790 LID - 10.1007/s00262-019-02410-z [doi] AB - Human leukocyte antigen class I (HLA I) molecules composed of alpha (heavy) chain, including HLA-A, -B, or -C encoded by HLA genes, and beta-2-microglobulin (beta2M) are membrane proteins on all nucleated cells that display peptide antigens for recognition by CD8-positive cytotoxic T cells. Here, we examined the clinicopathologic signification of HLA I expression in patients with gastric cancer (GC). Immunohistochemistry was performed to detect HLA A/B/C, beta2M, CD8, p53, and programmed death-ligand 1 (PD-L1) in the center and invasive margin of the tumor in 395 stage II and III GCs using tissue array method. Additionally, Epstein-Barr virus (EBV) infection and microsatellite instability (MSI) status were investigated. Negative expression of HLA A/B/C and beta2M was observed in 258 (65.3%) and 235 (59.5%) of 395 stage II and III GCs, respectively. Negative HLA I expression was significantly associated with aggressive clinicopathologic features. Furthermore, negative expression of HLA A/B/C and beta2M was inversely correlated with CD8-positive cytotoxic T cell infiltration, EBV-positivity, and PD-L1 expression (all p < 0.001). Patients with HLA A/B/C-negative GC had worse overall survival (OS) (p = 0.019) and combined analysis with both HLA A/B/C and beta2M expression status significantly predicted OS in univariate (p = 0.004) and multivariate survival analysis (p = 0.016). Negative expression of HLA A/B/C and beta2M was frequently observed in stage II and III GCs, particularly with the aggressive clinicopathologic features, and correlated with an unfavorable prognosis and host immune response status. These findings contribute to further development of immunotherapy. FAU - Park, Yujun AU - Park Y AD - Department of Pathology, Seoul National University Bundang Hospital, Gumi-ro 173, 82 Beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13620, Republic of Korea. AD - Department of Pathology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, Republic of Korea. FAU - Koh, Jiwon AU - Koh J AD - Department of Pathology, Seoul National University Hospital, 100 Daehak-ro, Jongno-gu, Seoul, Republic of Korea. FAU - Kwak, Yoonjin AU - Kwak Y AD - Department of Pathology, Seoul National University Hospital, 100 Daehak-ro, Jongno-gu, Seoul, Republic of Korea. FAU - Ahn, Sang-Hoon AU - Ahn SH AD - Department of Surgery, Seoul National University Bundang Hospital, Gumi-ro 173, 82 Beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, Republic of Korea. FAU - Park, Do Joong AU - Park DJ AD - Department of Surgery, Seoul National University Bundang Hospital, Gumi-ro 173, 82 Beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, Republic of Korea. FAU - Kim, Hyung-Ho AU - Kim HH AD - Department of Surgery, Seoul National University Bundang Hospital, Gumi-ro 173, 82 Beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, Republic of Korea. FAU - Kim, Woo Ho AU - Kim WH AD - Department of Pathology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, Republic of Korea. AD - Department of Pathology, Seoul National University Hospital, 100 Daehak-ro, Jongno-gu, Seoul, Republic of Korea. FAU - Lee, Hye Seung AU - Lee HS AUID- ORCID: 0000-0002-1667-7986 AD - Department of Pathology, Seoul National University Bundang Hospital, Gumi-ro 173, 82 Beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13620, Republic of Korea. hye2@snu.ac.kr. AD - Department of Pathology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, Republic of Korea. hye2@snu.ac.kr. LA - eng GR - NRF-2016R1D1A1B03931744/National Research Foundation of Korea/ PT - Journal Article DEP - 20191016 PL - Germany TA - Cancer Immunol Immunother JT - Cancer immunology, immunotherapy : CII JID - 8605732 RN - 0 (B7-H1 Antigen) RN - 0 (Biomarkers, Tumor) RN - 0 (CD274 protein, human) RN - 0 (HLA Antigens) RN - 0 (beta 2-Microglobulin) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - B7-H1 Antigen/immunology/metabolism MH - Biomarkers, Tumor/immunology/*metabolism MH - Female MH - Follow-Up Studies MH - HLA Antigens/immunology/*metabolism MH - Humans MH - Lymphocytes, Tumor-Infiltrating/*immunology MH - Male MH - Microsatellite Instability MH - Middle Aged MH - Neoplasm Staging MH - Stomach Neoplasms/immunology/metabolism/*pathology/surgery MH - Tumor Microenvironment/*immunology MH - Young Adult MH - beta 2-Microglobulin/immunology/metabolism PMC - PMC11028069 OTO - NOTNLM OT - Beta-2-microglobulin OT - Biomarkers OT - Gastric cancer OT - Human leukocyte antigen OT - Programmed death-ligand 1 COIS- The authors report no conflict of interest. EDAT- 2019/10/18 06:00 MHDA- 2019/11/28 06:00 PMCR- 2019/10/16 CRDT- 2019/10/18 06:00 PHST- 2018/11/25 00:00 [received] PHST- 2019/10/05 00:00 [accepted] PHST- 2019/10/18 06:00 [pubmed] PHST- 2019/11/28 06:00 [medline] PHST- 2019/10/18 06:00 [entrez] PHST- 2019/10/16 00:00 [pmc-release] AID - 10.1007/s00262-019-02410-z [pii] AID - 2410 [pii] AID - 10.1007/s00262-019-02410-z [doi] PST - ppublish SO - Cancer Immunol Immunother. 2019 Nov;68(11):1779-1790. doi: 10.1007/s00262-019-02410-z. Epub 2019 Oct 16.