Prognostic implication of molecular aberrations in cytogenetically normal acute myeloid leukemia patients receiving allogeneic hematopoietic stem cell transplantation.
GENETICS AND MOLECULAR RESEARCH(2013)
摘要
Different molecular aberrations can be discriminated into certain prognostic subgroups in cytogenetically normal acute myeloid leukemia (CN-AML) patients but their impact on allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains controversial and studies from Asian populations are lacking. Forty-two adult non-M3 AML patients receiving allo-HSCT from 2002 to 2009 in southern Taiwan were retrospectively reviewed for survey, 23 (54.7%) of whom were CN-AML. NPM1, FLT3-ITD, and CEBPA were analyzed. After a median follow-up of 104 weeks (range, 8 to 384), patients in the good risk group (harboring either NPM1 or CEBPA mutation without concurrent FLT3-ITD) showed a borderline worse overall survival (OS) compared with the intermediate/poor risk group (P = 0.08). Interestingly, a poorer OS was found in patients with the CEBPA mutation (P = 0.003) but not the NPM1 mutation (P = 0.96). No OS difference was found between patients with or without FLT3-ITD (P = 0.15). In patients receiving allo-HSCT at first remission, there was no significant OS benefit in the good risk group (P = 0.33). In patients receiving allo-HSCT beyond first remission, disease status played a major role (P = 0.006), irrespective of molecular aberrations. Allo-HSCT in good risk patients should be carefully evaluated in Taiwanese, especially in patients with the CEBPA mutation. Conversely, allo-HSCT should be considered in first remission in patients with an intermediate/poor risk, where it may overcome the adverse impact of FLT3-ITD. Disease status remained a main issue in patients receiving allo-HSCT beyond first remission.
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关键词
Acute myeloid leukemia,Cytogenetic,Mutation,Hematopoietic stem cell transplantation,Molecular aberrations
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