期刊
EUROPEAN JOURNAL OF HAEMATOLOGY
卷 86, 期 6, 页码 477-483出版社
WILEY
DOI: 10.1111/j.1600-0609.2011.01608.x
关键词
CYP3A5*3; childhood ALL; pharmacogenetics; risk; prognosis
类别
资金
- Ministry of Health
- Novo Nordisk Foundation
- Otto Christensen Foundation
- Danish Research Council for Health and Disease
- Danish Cancer Society
- Danish Childhood Cancer Foundation
- University Hospital Rigshospitalet
Objectives: Acute lymphoblastic leukemia (ALL) is the most common cancer in childhood; however, little is known of the molecular etiology and environmental exposures causing the disease. Cytochrome P450 3A5 (CYP3A5) plays a crucial role in the catalytic oxidation of endogenous metabolites and toxic substances, including chemotherapeutic agents. The aim of this study was to investigate the role of a single-nucleotide polymorphism (CYP3A5*3 6986A > G), which renders low enzyme activity, in the risk of developing ALL and in the outcome for children with ALL. Patients and methods: Six hundred and sixteen childhood patients with ALL and 203 controls were genotyped by allelic discrimination. Results: Individuals with the A allele had a 64% increased risk of developing childhood ALL (odds ratio = 1.64; 95% CI, 1.009-2.657). In general, event-free survival (EFS) did not differ in relation to CYP3A5 genotype. However, for patients with T-ALL, presence of the A allele was associated with better prognosis (EFS = 94.1%), while patients with the low-activity GG genotype only had an EFS of 61.5% (P = 0.015). Thus, for patients with T-ALL having no A allele and therefore low expression of CYP3A5, the risk of experiencing an event was almost eight times higher compared to those having at least one A allele (P = 0.045, hazard ratio = 7.749; 95% CI, 1.044-57.52). Conclusions: This study shows that genetics may play a role in the risk of developing childhood ALL and indicates that improved treatment stratification of childhood patients with ALL may require addition of host genetic information.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据