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首页> 外文期刊>Biochimica et biophysica acta. Reviews on cancer >The PP2A subunit PR130 is a key regulator of cell development and oncogenic transformation
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The PP2A subunit PR130 is a key regulator of cell development and oncogenic transformation

机译:PP2A亚基PR130是细胞开发和致癌转化的关键调节因子

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Protein phosphatase 2A (PP2A) is a major serine/threonine phosphatase. This enzyme is involved in a plethora of cellular processes, including apoptosis, autophagy, cell proliferation, and DNA repair. Remarkably, PP2A can act as a context-dependent tumor suppressor or promoter. Active PP2A complexes consist of structural (PP2A-A), regulatory (PP2A-B), and catalytic (PP2A-C) subunits. The regulatory subunits define the substrate specificity and the subcellular localization of the holoenzyme. Here we condense the increasing evidence that the PP2A Btype subunit PR130 is a critical regulator of cell identity and oncogenic transformation. We summarize knowledge on the biological functions of PR130 in normal and transformed cells, targets of the PP2A-PR130 complex, and how diverse extra- and intracellular stimuli control the expression and activity of PR130. We additionally review the impact of PP2A-PR130 on cardiac functions, neuronal processes, and anti-viral defense and how this might affect cancer development and therapy.
机译:蛋白质磷酸酶2a(pp2a)是主要的丝氨酸/苏氨酸磷酸酶。该酶参与血清血管过程,包括细胞凋亡,自噬,细胞增殖和DNA修复。值得注意的是,PP2A可以充当上下文依赖性肿瘤抑制剂或启动子。活性PP2A配合物由结构(PP2A-A),调节(PP2A-B)和催化剂(PP2A-C)亚基组成。调节亚基定义了底物特异性和全酶的亚细胞定位。在这里,我们将越来越多的证据表明PP2A BTYPE亚基PR130是细胞同一性和致癌转化的临界调节因子。我们总结了PP2A-PR130复杂的PR130中PR130的生物学功能的知识,以及多种促进和细胞内刺激的靶向PR130的表达和活性。我们还审查了PP2A-PR130对心功能,神经元过程和抗病毒防御的影响以及这可能会影响癌症的发展和治疗。

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