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倍半萜逆转肿瘤多药耐药机制研究进展 被引量:1

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摘要 多药耐药(MDR)是指肿瘤细胞对一种抗肿瘤药物产生耐药性的同时,对结构和作用机制完全不同的其他多种抗肿瘤药物产生交叉耐药的现象.肿瘤细胞的多药耐药已经成为肿瘤化疗失败的主要原因之一.MDR由多种途径诱导,其形成机制相当复杂,主要有P-糖蛋白(P-gp)、多药耐药相关蛋白(MRP)、肺耐药相关蛋白(LRP)、乳腺癌耐药蛋白(BCRP)、谷胱甘肽(GSH)和谷胱甘肽-S-转移酶(GST)等含量、活性增加,DNA拓扑异构酶(TOPO) I、Ⅱ含量、活性下降,DNA损伤修复能力增强,肿瘤细胞凋亡抑制,细胞膜能量依赖性内运系统障碍等.由于现今的化学和生物的耐药逆转剂对机体的毒性很大,许多学者的目光转向于天然药物中,从中药中提取其有效成分毒性小、疗效好,而倍半萜类化合物正是目前的研究热点.
出处 《中国药师》 CAS 2014年第1期149-152,共4页 China Pharmacist
基金 2012年度成都医学院创新性实验项目(编号:CX2012207) 2013年四川省教育厅科研项目(编号:13ZA0209)
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