PMID- 37686454 OWN - NLM STAT- MEDLINE DCOM- 20230911 LR - 20230911 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 24 IP - 17 DP - 2023 Sep 4 TI - HLA Class I Expression Is Associated with DNA Damage and Immune Cell Infiltration into Dysplastic and Neoplastic Lesions in Ulcerative Colitis. LID - 10.3390/ijms241713648 [doi] LID - 13648 AB - Human leukocyte antigen class I (HLA-I) is considered a genetic pathogen for ulcerative colitis (UC). This study aimed to investigate the significance of DNA damage and HLA-I expression in infiltrating immune cells and immune checkpoint protein PD-L1 expression in dysplasia/colitic cancer (CC) and sporadic colorectal cancer (SCRC). We performed immunohistochemical staining for HLA-I, PD-L1, gammaH2AX (DNA damage marker), and immune cell markers such as CD8, FOXP3, CD68, and CD163 (in surgically resected specimens from 17 SCRC patients with 12 adjacent normal mucosa (NM) and 9 UC patients with 18 dysplasia/CC tumors. The ratio of membrane HLA-I-positive epithelial cells in UC and dysplasia/CC tissues was significantly higher than that in NM and SCRC. High HLA-I expression in dysplasia/CC was associated with high positivity of gammaH2AX and PD-L1 expression compared to SCRC. The infiltration of CD8-positive T cells and CD68-positive macrophages in HLA-I-high dysplasia/CC was significantly higher than in UC and SCRC. Dysplasia/CC specimens with DNA damage exhibited high levels of HLA-I-positive epithelial cells with high CD8- and CD68-positive immune cell infiltration compared to UC and SCRC specimens. Targeting DNA damage in UC may regulate immune cell infiltration, immune checkpoint proteins, and carcinogenesis by modulating DNA damage-induced HLA-I antigen presentation. FAU - Okami, Haruka AU - Okami H AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Ozawa, Naoya AU - Ozawa N AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Sohda, Makoto AU - Sohda M AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Yokobori, Takehiko AU - Yokobori T AUID- ORCID: 0000-0003-3284-4796 AD - Division of Integrated Oncology Research, Gunma University, Initiative for Advanced Research (GIAR), Maebashi 371-8511, Japan. FAU - Osone, Katsuya AU - Osone K AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Erkhem-Ochir, Bilguun AU - Erkhem-Ochir B AD - Division of Integrated Oncology Research, Gunma University, Initiative for Advanced Research (GIAR), Maebashi 371-8511, Japan. FAU - Dorjkhorloo, Gendensuren AU - Dorjkhorloo G AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Shiraishi, Takuya AU - Shiraishi T AUID- ORCID: 0000-0003-3543-1874 AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Okada, Takuhisa AU - Okada T AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Sano, Akihiko AU - Sano A AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Sakai, Makoto AU - Sakai M AUID- ORCID: 0000-0003-0860-3132 AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Miyazaki, Tatsuya AU - Miyazaki T AD - Department of Surgery Japanese Red Cross Maebashi Hospital, Maebashi 371-0811, Japan. FAU - Ogawa, Hiroomi AU - Ogawa H AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Yao, Takashi AU - Yao T AUID- ORCID: 0000-0003-2287-7658 AD - Department of Human Pathology, Graduate School of Medicine, Juntendo University, Bunkyo-ku 113-8431, Japan. FAU - Oike, Takahiro AU - Oike T AD - Department of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Sato, Hiro AU - Sato H AUID- ORCID: 0000-0001-8267-6917 AD - Department of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Shirabe, Ken AU - Shirabe K AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. FAU - Shibata, Atsushi AU - Shibata A AD - Division of Molecular Oncological Pharmacy, Faculty of Pharmacy, Keio University, Minato-ku 108-8345, Japan. FAU - Saeki, Hiroshi AU - Saeki H AD - Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi 371-8510, Japan. LA - eng PT - Journal Article DEP - 20230904 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (B7-H1 Antigen) RN - 0 (Immune Checkpoint Proteins) SB - IM MH - Humans MH - *B7-H1 Antigen/genetics MH - *Colitis, Ulcerative/genetics MH - Hyperplasia MH - Epithelial Cells MH - DNA Damage MH - Immune Checkpoint Proteins PMC - PMC10487850 OTO - NOTNLM OT - DNA damage OT - colitic cancer OT - human leukocyte antigen OT - immune cells COIS- The authors have no conflict of interest. EDAT- 2023/09/09 11:47 MHDA- 2023/09/11 06:43 PMCR- 2023/09/04 CRDT- 2023/09/09 01:14 PHST- 2023/07/26 00:00 [received] PHST- 2023/08/24 00:00 [revised] PHST- 2023/09/02 00:00 [accepted] PHST- 2023/09/11 06:43 [medline] PHST- 2023/09/09 11:47 [pubmed] PHST- 2023/09/09 01:14 [entrez] PHST- 2023/09/04 00:00 [pmc-release] AID - ijms241713648 [pii] AID - ijms-24-13648 [pii] AID - 10.3390/ijms241713648 [doi] PST - epublish SO - Int J Mol Sci. 2023 Sep 4;24(17):13648. doi: 10.3390/ijms241713648.