PMID- 37179751 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230920 IS - 1598-2629 (Print) IS - 2092-6685 (Electronic) IS - 1598-2629 (Linking) VI - 23 IP - 2 DP - 2023 Apr TI - Comprehensive Analysis of Epstein-Barr Virus LMP2A-Specific CD8(+) and CD4(+) T Cell Responses Restricted to Each HLA Class I and II Allotype Within an Individual. PG - e17 LID - 10.4110/in.2023.23.e17 [doi] LID - e17 AB - Latent membrane protein 2A (LMP2A), a latent Ag commonly expressed in Epstein-Barr virus (EBV)-infected host cells, is a target for adoptive T cell therapy in EBV-associated malignancies. To define whether individual human leukocyte antigen (HLA) allotypes are used preferentially in EBV-specific T lymphocyte responses, LMP2A-specific CD8(+) and CD4(+) T cell responses in 50 healthy donors were analyzed by ELISPOT assay using artificial Ag-presenting cells expressing a single allotype. CD8(+) T cell responses were significantly higher than CD4(+) T cell responses. CD8(+) T cell responses were ranked from highest to lowest in the order HLA-A, HLA-B, and HLA-C loci, and CD4(+) T cell responses were ranked in the order HLA-DR, HLA-DP, and HLA-DQ loci. Among the 32 HLA class I and 56 HLA class II allotypes, 6 HLA-A, 7 HLA-B, 5 HLA-C, 10 HLA-DR, 2 HLA-DQ, and 2 HLA-DP allotypes showed T cell responses higher than 50 spot-forming cells (SFCs)/5x10(5) CD8(+) or CD4(+) T cells. Twenty-nine donors (58%) showed a high T cell response to at least one allotype of HLA class I or class II, and 4 donors (8%) had a high response to both HLA class I and class II allotypes. Interestingly, we observed an inverse correlation between the proportion of LMP2A-specific T cell responses and the frequency of HLA class I and II allotypes. These data demonstrate the allele dominance of LMP2A-specific T cell responses among HLA allotypes and their intra-individual dominance in response to only a few allotypes in an individual, which may provide useful information for genetic, pathogenic, and immunotherapeutic approaches to EBV-associated diseases. CI - Copyright (c) 2023. The Korean Association of Immunologists. FAU - Jo, Hyeong-A AU - Jo HA AUID- ORCID: 0000-0003-2981-9071 AD - Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. AD - Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. FAU - Hyun, Seung-Joo AU - Hyun SJ AD - Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. AD - Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. FAU - Hyun, You-Seok AU - Hyun YS AUID- ORCID: 0000-0001-8572-2595 AD - Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. AD - Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. FAU - Lee, Yong-Hun AU - Lee YH AD - Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. AD - Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. FAU - Kim, Sun-Mi AU - Kim SM AD - Hematopoietic Stem Cell Bank, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. FAU - Baek, In-Cheol AU - Baek IC AUID- ORCID: 0000-0003-3630-3364 AD - Hematopoietic Stem Cell Bank, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. FAU - Sohn, Hyun-Jung AU - Sohn HJ AD - Hematopoietic Stem Cell Bank, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. FAU - Kim, Tai-Gyu AU - Kim TG AUID- ORCID: 0000-0002-2226-2138 AD - Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. AD - Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. AD - Hematopoietic Stem Cell Bank, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea. LA - eng PT - Journal Article DEP - 20221202 PL - Korea (South) TA - Immune Netw JT - Immune network JID - 101137270 PMC - PMC10166658 OTO - NOTNLM OT - CD8+ and CD4+ T cells OT - Dominant allotype OT - Epstein-Barr virus OT - HLA class I and II OT - Intra-individual dominance OT - LMP2A COIS- Conflict of Interest: The authors declare no potential conflicts of interest. EDAT- 2023/05/14 13:10 MHDA- 2023/05/14 13:11 PMCR- 2023/04/01 CRDT- 2023/05/14 11:57 PHST- 2022/08/05 00:00 [received] PHST- 2022/10/26 00:00 [revised] PHST- 2022/11/02 00:00 [accepted] PHST- 2023/05/14 13:10 [pubmed] PHST- 2023/05/14 13:11 [medline] PHST- 2023/05/14 11:57 [entrez] PHST- 2023/04/01 00:00 [pmc-release] AID - 10.4110/in.2023.23.e17 [doi] PST - epublish SO - Immune Netw. 2022 Dec 2;23(2):e17. doi: 10.4110/in.2023.23.e17. eCollection 2023 Apr.