PMID- 36793734 OWN - NLM STAT- MEDLINE DCOM- 20230217 LR - 20230217 IS - 1664-3224 (Electronic) IS - 1664-3224 (Linking) VI - 14 DP - 2023 TI - Association between human leukocyte antigen and immunosuppressive treatment outcomes in Chinese patients with aplastic anemia. PG - 1056381 LID - 10.3389/fimmu.2023.1056381 [doi] LID - 1056381 AB - BACKGROUND: Activated cytotoxic T cells (CTLs) recognize the auto-antigens presented on hematopoietic stem/progenitor cells (HSPCs) through class I human leukocyte antigen (HLA) molecules and play an important role in the immune pathogenesis of aplastic anemia (AA). Previous reports demonstrated that HLA was related to the disease susceptibility and response to immunosuppressive therapy (IST) in AA patients. Recent studies have indicated that specific HLA allele deletions, which helped AA patients to evade CTL-driven autoimmune responses and escape from immune surveillance, may lead to high-risk clonal evolution. Therefore, HLA genotyping has a particular predictive value for the response to IST and the risk of clonal evolution. However, there are limited studies on this topic in the Chinese population. METHODS: To explore the value of HLA genotyping in Chinese patients with AA, 95 AA patients treated with IST were retrospectively investigated. RESULTS: The alleles HLA-B*15:18 and HLA-C*04:01 were associated with a superior long-term response to IST (P = 0.025; P = 0.027, respectively), while the allele HLA-B*40:01 indicated an inferior result (P = 0.02). The allele HLA-A*01:01 and HLA-B*54:01 were associated with high-risk clonal evolution (P = 0.032; P = 0.01, respectively), and the former had a higher frequency in very severe AA (VSAA) patients than that in severe AA (SAA) patients (12.7% vs 0%, P = 0.02). The HLA-DQ*03:03 and HLA-DR*09:01 alleles were associated with high-risk clonal evolution and poor long-term survival in patients aged >/=40 years. Such patients may be recommended for early allogeneic hematopoietic stem cell transplantation rather than the routine IST treatment. CONCLUSION: HLA genotype has crucial value in predicting the outcome of IST and long-term survival in AA patients, and thus may assist an individualized treatment strategy. CI - Copyright (c) 2023 Chen, Ge, Huo, Ren, Shao, Li, Huang, Wang, Nie, Zhang, Peng and Zheng. FAU - Chen, Lingyun AU - Chen L AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Ge, Meili AU - Ge M AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Huo, Jiali AU - Huo J AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Ren, Xiang AU - Ren X AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Shao, Yingqi AU - Shao Y AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Li, Xingxin AU - Li X AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Huang, Jinbo AU - Huang J AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Wang, Min AU - Wang M AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Nie, Neng AU - Nie N AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Zhang, Jing AU - Zhang J AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Peng, Jin AU - Peng J AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Zheng, Yizhou AU - Zheng Y AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230130 PL - Switzerland TA - Front Immunol JT - Frontiers in immunology JID - 101560960 RN - 0 (Immunosuppressive Agents) RN - 0 (HLA Antigens) RN - 0 (HLA-B Antigens) SB - IM MH - Humans MH - *Anemia, Aplastic/drug therapy/genetics MH - Retrospective Studies MH - East Asian People MH - Immunosuppressive Agents/therapeutic use MH - Treatment Outcome MH - HLA Antigens/genetics MH - HLA-B Antigens/genetics PMC - PMC9923019 OTO - NOTNLM OT - HLA OT - aplastic anemia OT - clonal evolution OT - immunosuppressive therapy OT - therapy response COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/02/17 06:00 MHDA- 2023/02/18 06:00 PMCR- 2023/01/01 CRDT- 2023/02/16 02:20 PHST- 2022/09/29 00:00 [received] PHST- 2023/01/10 00:00 [accepted] PHST- 2023/02/16 02:20 [entrez] PHST- 2023/02/17 06:00 [pubmed] PHST- 2023/02/18 06:00 [medline] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fimmu.2023.1056381 [doi] PST - epublish SO - Front Immunol. 2023 Jan 30;14:1056381. doi: 10.3389/fimmu.2023.1056381. eCollection 2023.