期刊
EUROPEAN JOURNAL OF CANCER
卷 47, 期 13, 页码 1990-1999出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ejca.2011.03.032
关键词
Acute leukaemia; ABCG2; Polymorphism; Multidrug resistance; Bone marrow transplantation
类别
资金
- National Sciences Foundation [30672407, 81061160]
- Key Sciences and 985-II foundation of State Key Laboratory of Oncology in Southern China
Background: Functional polymorphisms of the ABCG2 gene may contribute to individual variability in drug response and the prognosis of patients. Methods: In the present study, the genetic polymorphisms and expression of ABCG2 were analysed in blasts cells obtained from 184 Chinese patients with de novo acute leukaemia to investigate their possible association with clinical outcomes. Results: A novel synonymous ABCG2-single nucleotide polymorphism (SNP) at exon 16 (13561218 C/T) and five known SNPs at exon 2 (13608835 G/A), exon 5 (13600044 C/A), intron 10 (13576005 C/T), intron 13 (13564503 C/T) and intron 14 (13563578 A/G) were identified with occurrence rates of 1.1%, 64.1%, 30.4%, 21.2%, 39.7% and 28.8%, respectively. We found that patients with the ABCG2 34GG genotype displayed longer disease free survival (DFS) (P < 0.001) and overall survival (OS) (P < 0.001) than those with the 34GA/AA genotypes. Furthermore, the DFS and OS were significantly diminished in bone marrow transplantation (BMT) patients with the 34GA/AA genotypes relative to those with the 34GG genotype. Conclusions: These results suggest that these highly prevalent ABCG2 34GA/AA genotypes are associated with poor prognosis of Chinese patients with acute leukaemia and BMT patients. (C) 2011 Elsevier Ltd. All rights reserved.
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