PTEN function: the long and the short of it.

PTEN function: the long and the short of it.
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DOI:
10.1016/j.tibs.2014.02.006
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发表时间:
2014-04
影响因子:
13.8
通讯作者:
Parsons RE
Parsons RE
中科院分区:
生物学1区
文献类型:
--
作者:
Hopkins BD;Hodakoski C;Barrows D;Mense SM;Parsons RE

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第十号染色体上缺失的磷酸酶和张力蛋白同源物(PTEN)是一种在癌症中经常改变的磷酸酶。PTEN具有磷酸酶依赖性和非磷酸酶依赖性作用; PTEN的遗传改变导致蛋白质合成、细胞周期、迁移、生长、DNA修复和生存信号的失调。PTEN的定位、稳定性、构象和磷酸酶活性受一系列蛋白质-蛋白质相互作用和翻译后修饰的控制。因此,PTEN相互作用和修饰蛋白对PTEN的肿瘤抑制功能具有深远的影响。此外,最近的研究确定了PTEN可以通过外泌体输出或分泌退出细胞并作用于邻近细胞的机制。这篇评论的重点是模式的PTEN蛋白的调节和方式,在这种调节的扰动可能导致疾病。
Phosphatase and tensin homolog deleted on chromosome ten (PTEN) is a phosphatase that is frequently altered in cancer. PTEN has phosphatase-dependent and - independent roles; and genetic alterations in PTEN lead to deregulation of protein synthesis, cell cycle, migration, growth, DNA repair, and survival signaling. PTEN localization, stability, conformation, and phosphatase activity are controlled by an array of protein-protein interactions and post-translational modifications. Thus, PTEN-interacting and modifying proteins have profound effects on PTEN’s tumor suppressive functions. Moreover, recent studies identified mechanisms by which PTEN can exit cells, either via exosomal export or secretion, and act on neighboring cells. This review focuses on modes of PTEN protein regulation and ways in which perturbations in this regulation may lead to disease.
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