第10号染色体缺失的磷酸酶和张力蛋白同源等位基因(PTEN)是迄今发现的第一个具有蛋白质和脂质双重磷酸酶活性的抑癌基因,其调控的信号转导异常涉及多系统疾病以及恶性肿瘤的发生、发展。PTEN自身的调控机制仍然不清楚,迄今发现通过PTEN与联接蛋白的相关作用,以及磷酸化、泛素化、氧化和乙酰化,而实现其调控。
Phosphatase and tensin homology deleted on chromosome 10 (PTEN) is a tumor suppressor with dual protein and lipid phosphatase activity.PTEN is involved multisystem diseases and cancer,though the mechanisms of PTEN regulation are far from clear.Recent advances concerning regulation of PTEN including protein-protein interaction,phosphorylation,ubiquitination,oxidation and acetylation will be discussed.