Ng MHL, Lau KM, Hawkins BR, Chik KW, Chan NPH, Wong WS, Tsang KS, Shing MMK, Li CK. HLA-B67 may be a male-specific HLA marker of susceptibility to relapsed childhood ALL in Hong Kong Chinese and HLA-A33 or HLA-B17 signifies a higher presentation leukocytosis: a retrospective analysis on 53 transplant candidates (1989–2003).
Ann Hematol 2006;
85:535-41. [PMID:
16710717 DOI:
10.1007/s00277-006-0118-0]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2005] [Accepted: 04/03/2006] [Indexed: 10/24/2022]
Abstract
We performed a retrospective analysis on the human leukocyte antigen (HLA) data of 53 consecutive Chinese patients with high-risk childhood acute lymphoblastic leukemia (ALL) diagnosed from 1989 to 2003. A significantly higher frequency of HLA-B67 in the male relapse group of patients [OR, 23.08; 95% CI, 5.31-100.36; p = 0.0042; for statistical significance after Bonferroni correction (Bc) p (Bc) < 0.0083] was identified after Bonferroni correction. Although not surviving the Bonferroni correction, gender effects on the association were also observed with HLA-A11, HLA-A32, HLA-A33, and HLA-B22, which were however more prevalent in the female patients and particularly those developing relapse. Two patients with HLA-A29 and HLA-B7 revealed significantly shortened survivals, suggestive of their potential prognostic impacts. Notably, for the first time, we found a significant correlation of leukocyte count with HLA types, where HLA-A33 (p = 0.006) or HLA-B17 (p < 0.001) signifies higher leukocytosis at presentation. Taken together, our findings support the involvement of HLA in Chinese high-risk childhood ALL.
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