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ABCB1基因多态性与非霍奇金淋巴瘤患者甲氨蝶呤毒副反应关系研究
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摘要
目的:研究多药耐药基因1(ABCB1)rs1045642基因多态性与非霍奇金淋巴瘤(NHL)患者甲氨蝶呤(MTX)毒副反应关系。方法:收集81例使用大剂量MTX化疗的NHL患者血样,应用直接测序法检测ABCB1 rs1045642基因多态性,根据NCI-CTCAE统一评价MTX化疗后的毒副反应,用SPSS分析基因多态性与MTX毒副反应的关系。结果:CC、CT和TT基因的分布频率分别为43.21%、39.51%和17.28%;C和T等位基因的分布频率为62.96%和37.04%;突变型(CT+TT)患者发生2级以上血小板减少的比例显著高于野生型(CC)患者(P=0.002)。结论:ABCB1rs1045642基因多态性可能影响NHL患者MTX化疗后2级以上血小板减少的发生率。
OBJECTIVE:To investigate the relationships between multi-drug resistance 1(ABCB1) rs1045642 genetic polymorphisms and toxicities of methotrexate in patients with non-Hodgkin's malignant lymphoma(NHL).METHODS:81blood samples were obtained from patients with NHL using high-dose MTX.The genetic polymorphisms of ABCBl rs 1045642 were detected by gene sequencing.The toxicities were evaluated by NCI common terminology criteria for adverse event.The relationships between genetic polymorphisms and toxicities were analysed by SPSS.RESULTS:Frequencies of CC、 CT and TT genotypes were 43.21%、 39.51%and 17.28%;the frequencies of C and T alleles were 62.96%and 37.04%.The rates of thrombocytopenia(≥grade 2) were higher with mutant genotype(CT+TT) carriers compared with wild genotype(CC)(P=0.002).CONCLUSION:The genetic polymorphisms of ABCBl rsl045642 may contribute to the rate of thrombocytopenia(≥grade 2) induced by methotrexate in patients with NHL.
引文
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