AMPK activation protects against prostate cancer by inducing a catabolic cellular state.

AMPK activation protects against prostate cancer by inducing a catabolic cellular state.
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AMPK激活通过诱导分解代谢的细胞状态来预防前列腺癌。

DOI:
10.1016/j.celrep.2023.112396
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发表时间:
2023-04-25
期刊:
影响因子:
8.8
通讯作者:
--
中科院分区:
生物学1区
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新出现的证据表明,代谢失调驱动前列腺癌(PCa)的进展和转移。AMP激活的蛋白激酶(AMPK)是代谢的主要调节剂,尽管其在PCa中的作用尚不清楚。在这里,我们表明AMPK的遗传和药理学激活对体内PCa进展提供了保护作用。我们发现AMPK激活诱导PGC1α表达,导致PCa细胞的分解代谢重编程。这种分解代谢状态的特征在于增加的线粒体基因表达、增加的脂肪酸氧化、降低的脂肪生成潜力、降低的细胞增殖和降低的细胞侵袭性。总之,这些变化抑制PCa疾病进展。此外,我们确定了一个基因网络参与细胞周期调控,抑制AMPK激活。令人惊讶的是,我们发现这个基因网络和人前列腺癌中PGC1α基因表达之间存在相关性。总之,我们的研究结果支持使用AMPK激活剂临床治疗PCa,以改善患者的预后。Penfold等人表明AMPK激活可在体内防止前列腺癌进展。AMPK激活将前列腺癌细胞转换为肿瘤抑制性分解代谢状态,增加PGC1α表达和线粒体生物合成,同时抑制脂肪生成潜力。同时,AMPK抑制与前列腺癌进展相关的细胞周期基因网络。
Emerging evidence indicates that metabolic dysregulation drives prostate cancer (PCa) progression and metastasis. AMP-activated protein kinase (AMPK) is a master regulator of metabolism, although its role in PCa remains unclear. Here, we show that genetic and pharmacological activation of AMPK provides a protective effect on PCa progression in vivo. We show that AMPK activation induces PGC1α expression, leading to catabolic metabolic reprogramming of PCa cells. This catabolic state is characterized by increased mitochondrial gene expression, increased fatty acid oxidation, decreased lipogenic potential, decreased cell proliferation, and decreased cell invasiveness. Together, these changes inhibit PCa disease progression. Additionally, we identify a gene network involved in cell cycle regulation that is inhibited by AMPK activation. Strikingly, we show a correlation between this gene network and PGC1α gene expression in human PCa. Taken together, our findings support the use of AMPK activators for clinical treatment of PCa to improve patient outcome. Penfold et al. show that AMPK activation protects against prostate cancer progression in vivo. AMPK activation switches prostate cancer cells to a tumor-suppressive catabolic state, increasing PGC1α expression and mitochondrial biogenesis while inhibiting lipogenic potential. In parallel, AMPK inhibits a cell cycle gene network associated with prostate cancer progression.
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