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脑胶质瘤化疗耐药机制的研究进展 被引量:6

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摘要 化疗对胶质瘤治疗效果不理想相当一部分是由于胶质瘤对化疗药物耐药,严重影响了化疗效果。肿瘤细胞一旦对一种抗肿瘤药物产生耐药,对其他结构不同,作用机制不同的抗肿瘤药物也产生交叉耐药性,即多药耐药(MDR)。MDR有两种表型:(1)首次使用化疗药物就产生耐药,称为原发性或内在性耐药;(2)在化疗过程中产生耐药,称为获得性或继发性耐药。目前肿瘤MDR可能存在的分子机制有以下几种:(1)药物在肿瘤细胞内的积聚减少;(2)药物失活增加;(3)药物作用靶减少;(4)凋亡与抗凋亡机制失衡;(5)MDR中的DNA修复机制等。总之,胶质瘤MDR是一个十分复杂的生物学过程,胶质瘤MDR呈现多机制、多因素的特点。因此,有必要明确肿瘤细胞的耐药机制,以便对临床制定更合理的治疗方案,预防和逆转胶质瘤抗癌药物耐药性的产生。
出处 《临床军医杂志》 CAS 2011年第2期392-394,共3页 Clinical Journal of Medical Officers
关键词 胶质瘤 化疗 耐药
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同被引文献56

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