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中医药与HIV/AIDS感染中的穿孔素研究进展 被引量:1

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摘要 穿孔素(perforin)属于成孔蛋白(pore-forming protein),储存于细胞毒性T淋巴细胞(CTL)和自然杀伤(NK)细胞颗粒中,是一种具有细胞毒作用的效应分子,生理情况下机体含量极微.穿孔素有很强的溶胞活性,在PH中性且Ca2+存在的情况下,单体形式的穿孔素能在靶细胞膜上形成平均内径16nm的穿膜管状结构,使Na+、水分进入靶细胞内,K+及大分子物质(如蛋白质)从靶细胞内流出,改变靶细胞渗透压,将其溶解破坏.穿孔素也可协同作用于杀伤颗粒内的颗粒酶A、B,引起靶细胞凋亡[1].穿孔素是细胞免疫的主要效应分子之一,在体内有广泛的生物学作用.
作者 孙俊
出处 《云南中医中药杂志》 2013年第12期82-84,共3页 Yunnan Journal of Traditional Chinese Medicine and Materia Medica
基金 云南省应用基础研究计划(NO:2012FD085)
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