肿瘤细胞来源的外泌体与恶性肿瘤的进展及化疗

被引:19
作者
刘长红 [1 ,2 ]
武明花 [1 ,2 ]
李桂源 [1 ]
机构
[1] 中南大学肿瘤研究所,卫生部癌变原理重点实验室,教育部癌变与侵袭原理重点实验室
[2] 湖南省颅底外科与神经肿瘤临床医疗技术研究中心
关键词
外泌体; 化疗抵抗; 肿瘤微环境; miRNA; 免疫耐受;
D O I
10.13865/j.cnki.cjbmb.2014.06.002
中图分类号
R730.5 [肿瘤治疗学];
学科分类号
100214 [肿瘤学];
摘要
外泌体是细胞分泌的一种纳米级囊泡结构,在血液、唾液、尿液等多种体液中均有分布.作为一类重要的细胞间通信分子,外泌体含有多种具有生物活性的成分,可通过多种方式在人体中发挥调节作用.目前在多种类型的细胞中均发现外泌体的存在,而肿瘤细胞来源的外泌体由于其本身的特性和功能特点,可通过微环境介导肿瘤细胞的增生、血管形成和免疫耐受,并可通过介导上皮-间质转化(epithelial-mesenchymal transition,EMT)和胞内药物排斥反应等增加肿瘤细胞的化疗抵抗能力.同时,因其含有肿瘤细胞所分泌的特异性成分,因而可通过对外泌体中相关分子改变的检测,对疾病进行诊断和监测,并可为临床个体化用药提供新思路.
引用
收藏
页码:526 / 532
页数:7
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