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幽门螺杆菌细胞空泡毒素A基因多态性的研究进展 被引量:2

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摘要 幽门螺杆菌产生分泌细胞空泡毒素A(vacA)。这个毒素最初因其可以导致共培养的胃上皮细胞空泡化的改变而得名。vacA除了导致细胞的空泡化,还可以导致胃上皮细胞一系列的改变:促分裂原活化蛋白激酶(MAPK)的激活、增加质膜的通透性、增加线粒体薄膜的通透性、降低极化上皮单层的屏障功能、诱导细胞的凋亡以及免疫的激活和抑制。但是,在有毒力的菌株中,vacA转录水平和分泌效能都有不同,这和vacA基因多态性相关。此文综述了vacA基因多态性的研究进展。
出处 《国际消化病杂志》 CAS 2010年第5期261-262,299,共3页 International Journal of Digestive Diseases
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