应用maldi-tofms检测5种白血病细胞株dck和cda基因部分单核苷酸多态性
Keywords: dck基因,cda基因,单核苷酸多态性,白血病
Abstract:
?目的:检测5种白血病细胞株中脱氧胞苷激酶(deoxycytidinekinase,dck)和胞苷脱氨酶(cytidinedeaminase,cda)基因的单核苷酸多态性。方法:培养人红白血病细胞株k562,人慢性粒细胞白血病细胞株ka,人急性髓系白血病细胞株hl-60、u937,人burkkit淋巴瘤细胞株raji。采用qiaampdnabloodminikit提取基因组dna,设计引物,pcr扩增相应目的片段,采用基质辅助激光解吸电离飞行时间质谱技术(matrix-assistedlaserdesorption/ionizationtime-of-flightmassspectrometry,maldi-tofms)检测dck基因a674g(rs111454937)、c1644t(rs72552079),cda基因a79c(rs2072671)、g208a(rs60369023)的单核苷酸多态性。结果:5种细胞株dck基因a674g(rs111454937)均为a/a纯合子型,c1644t(rs72552079)均为c/c纯合子型。hl-60、u937、raji细胞株cda基因a79c(rs2072671)为a/a纯合子,k562、ka细胞株为c/a杂合子;5种细胞株cda基因g208a(rs60369023)均为g/g纯合子型。结论:cda基因的a79c(rs2072671)snps位点基因型在5株血液系统肿瘤细胞株中不尽相同,余所测3个snps位点基因型在各细胞株中均相同。
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