PTEN in cancer, metabolism, and aging.

PTEN in cancer, metabolism, and aging.
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DOI:
10.1016/j.tem.2012.11.002
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发表时间:
2013-04
影响因子:
10.9
通讯作者:
Serrano, Manuel
Serrano, Manuel
中科院分区:
医学1区
文献类型:
--
作者:
Ortega-Molina, Ana;Serrano, Manuel

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最近关于肿瘤抑制因子 PTEN 全身过度表达的小鼠的报道扩大了我们对其生理功能的理解。 Pten 转基因小鼠表现出能量消耗增加、肥胖减少、高脂肪喂养或衰老时胰岛素敏感性提高以及寿命延长。这导致人们对 PTEN 在新陈代谢中的作用有了新的机制认识。有趣的是,PTEN 促进氧化磷酸化并减少糖酵解,从而阻止癌细胞的代谢重编程特征,这可能与 PTEN 介导的癌症保护有关。 PTEN 还上调棕色脂肪细胞中的 UCP1 表达,从而增强其营养燃烧能力并减少肥胖和相关病理。新发现的 PTEN 对新陈代谢的影响为探索与癌症、肥胖、糖尿病和衰老相关的新途径开辟了新途径。
Recent reports on mice with systemic overexpression of the tumor suppressor PTEN have expanded our understanding of its physiological functions. Pten transgenic mice present increased energy expenditure, decreased adiposity, improved insulin sensitivity upon high-fat feeding or with aging, and extended lifespan. This has led to new mechanistic insights about the role of PTEN in metabolism. Interestingly, PTEN promotes oxidative phosphorylation and decreases glycolysis, thus preventing the metabolic reprogramming characteristic of cancer cells, which might be relevant to PTEN-mediated cancer protection. PTEN also upregulates UCP1 expression in brown adipocytes, which enhances their nutrient burning capacity and decreases adiposity and associated pathologies. The newly discovered effects of PTEN on metabolism open new avenues for exploration relevant to cancer, obesity, diabetes and aging.
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