Abstract：
:In subjects mismatched in the HLA alleles C*03:03/C*03:04 no allogeneic cytotoxic T-lymphocyte responses are detected in vitro. Hematopoietic stem cell transplantation (HSCT) with unrelated donors (UDs) showed no association between the HLA-C allele mismatches (CAMMs) and adverse outcomes; antigen mismatches at this and mismatches other HLA loci are deleterious. The absence of effect of the CAMM may have resulted from the predominance of the mismatch C*03:03/C*03:04. Patients with hematologic malignancies receiving UD HSCT matched in 8/8 and 7/8 HLA alleles were examined. Transplants mismatched in HLA-C antigens or mismatched in HLA-A, -B, or -DRB1 presented significant differences (P < .0001) in mortality (hazard ratio [HR] = 1.37, 1.30), disease-free survival (HR = 1.33, 1.27), treatment-related mortality (HR = 1.54, 1.54), and grade 3-4 acute graft-versus-host disease (HR = 1.49, 1.77) compared with the 8/8 group; transplants mismatched in other CAMMs had similar outcomes with HR ranging from 1.34 to 172 for these endpoints. The C*03:03/C*03:04 mismatched and the 8/8 matched groups had identical outcomes (HR ranging from 0.96-1.05). The previous finding that CAMMs do not associate with adverse outcomes is explained by the predominance (69%) of the mismatch C*03:03/03:04 in this group that is better tolerated than other HLA mismatches.
journal_name
Bloodjournal_title
Bloodauthors
Fernandez-Viña MA,Wang T,Lee SJ,Haagenson M,Aljurf M,Askar M,Battiwalla M,Baxter-Lowe LA,Gajewski J,Jakubowski AA,Marino S,Oudshoorn M,Marsh SG,Petersdorf EW,Schultz K,Turner EV,Waller EK,Woolfrey A,Umejiego J,Spelldoi
10.1182/blood-2013-10-532671subject
Has Abstractpub_date
2014-02-20 00:00:00pages
1270-8issue
8eissn
0006-4971issn
1528-0020pii
blood-2013-10-532671journal_volume
123pub_type
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