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HSP90和HSP70与肿瘤发生的研究进展 被引量:3

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摘要 热休克蛋白(Heat shock proteins,HSP)又称热激蛋白,是一类功能性相关蛋白质,根据它们的相对分子质量的大小,将HSPs分为HSP100,HSP90,HSP70,HSP60,HSP40和小热休克蛋白(sHSP)6个亚族,广泛存在于生物界原核到真核细胞中的一类具有高度保守性的蛋白质。当细胞在受到某些不利因素(如高热、感染、缺血、缺氧及化学物质等)刺激时,HSP会迅速短暂地大量合成,这种表达的增长是受到转录调控的,合成后通过与细胞内部分变性的蛋白质结合,协助其复性或将其运送至溶酶体降解而发挥细胞保护功能,因而可以认为HSPs在细胞内的出现标志着细胞自身保护机制的启动。
出处 《医学检验与临床》 2016年第9期52-54,67,共4页 Medical Laboratory Science and Clinics
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