MHC Class I Chain-Related Gene A (MICA) Donor-Recipient Mismatches and MICA-129 Polymorphism in Unrelated Donor Hematopoietic Cell Transplantations Has No Impact on Outcomes in Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, or Myelodysplastic Syndrome: A Center for International Blood and Marrow Transplant Research Study. Biol Blood Marrow Transplant 2017 Mar;23(3):436-444
Date
12/18/2016Pubmed ID
27987385Pubmed Central ID
PMC5370205DOI
10.1016/j.bbmt.2016.11.021Scopus ID
2-s2.0-85009268775 (requires institutional sign-in at Scopus site) 18 CitationsAbstract
Single-center studies have previously reported associations of MHC Class I Chain-Related Gene A (MICA) polymorphisms and donor-recipient MICA mismatching with graft-versus-host disease (GVHD) after unrelated donor hematopoietic cell transplantation (HCT). In this study, we investigated the association of MICA polymorphism (MICA-129, MM versus MV versus VV) and MICA mismatches after HCT with 10/10 HLA-matched (n = 552) or 9/10 (n = 161) unrelated donors. Included were adult patients with a first unrelated bone marrow or peripheral blood HCT for acute lymphoblastic leukemia, acute myeloid leukemia, or myelodysplastic syndrome that were reported to the Center for International Blood and Marrow Transplant Research between 1999 and 2011. Our results showed that neither MICA mismatch nor MICA-129 polymorphism were associated with any transplantation outcome (P < .01), with the exception of a higher relapse in recipients of MICA-mismatched HLA 10/10 donors (hazard ratio [HR], 1.7; P = .003). There was a suggestion of association between MICA mismatches and a higher risk of acute GVHD grades II to IV (HR, 1.4; P = .013) There were no significant interactions between MICA mismatches and HLA matching (9/10 versus 10/10). In conclusion, the findings in this cohort did not confirm prior studies reporting that MICA polymorphism and MICA mismatches were associated with HCT outcomes.
Author List
Askar M, Sobecks R, Wang T, Haagenson M, Majhail N, Madbouly A, Thomas D, Zhang A, Fleischhauer K, Hsu K, Verneris M, Lee SJ, Spellman SR, Fernández-Viña MAuthor
Tao Wang PhD Associate Professor in the Institute for Health and Equity department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Female
HLA Antigens
Hematopoietic Stem Cell Transplantation
Histocompatibility
Histocompatibility Antigens Class I
Humans
Leukemia, Myeloid, Acute
Linkage Disequilibrium
Male
Middle Aged
Myelodysplastic Syndromes
Polymorphism, Genetic
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Treatment Outcome
Unrelated Donors
Young Adult