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连接肠道炎症和肿瘤的桥梁——磷脂酰肌醇-3激酶/AKT信号转导通路的作用 被引量:6

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摘要 磷脂酰肌醇-3激酶(phosphatidylinositol 3-kinase,PI3K)家族是一类蛋白激酶,能特异性地催化磷脂酰肌醇(phosphatidylinositol,PI)环上的3位羟基磷酸化,生成相应的肌醇脂物质,后者是细胞内新型第二信使,与胞质内含血小板-白细胞激酶C底物同源(pleckstrin homology,PH)结构域的信号分子结合后对相应分子发挥活性调节作用。丝氨酸,苏氨酸蛋白激酶AKT是PI3K下游的直接靶蛋白,含有PH结构域,主要负责由PI3K始动的生物信息转导。AKT处于这一通路的中心环节,参与了细胞生长、增殖、生存、炎症、肿瘤的发生、发展等诸多重要生理病理过程。近年来,该通路在炎症和肿瘤中的作用日益受到重视,众多学者对其进行了大量研究。本文就这方面的情况作一综述。
出处 《胃肠病学》 2006年第11期693-696,共4页 Chinese Journal of Gastroenterology
基金 国家自然科学基金项目(No.30170426)资助
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参考文献32

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