AZD2014, a dual mTOR inhibitor, attenuates cardiac hypertrophy in vitro and in vivo.

AZD2014, a dual mTOR inhibitor, attenuates cardiac hypertrophy in vitro and in vivo.
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DOI:
10.1186/s13036-021-00276-3
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发表时间:
2021-10-21
影响因子:
5.6
通讯作者:
Won Y
Won Y
中科院分区:
生物学2区
文献类型:
--
作者:
Cha BH;Jung M;Kim AS;Lepak VC;Colson BA;Bull DA;Won Y

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心脏肥厚是最常见的遗传性心脏疾病之一,被认为是心脏发病率和死亡率的危险因素。哺乳动物雷帕霉素靶点(mTOR)通路在心血管肥大的生理和病理中起着关键的调节作用。AZD2014是一种小分子ATP竞争性mTOR抑制剂,作用于mTORC1和mTORC2复合物。AZD2014对心肌肥厚的治疗作用及其机制尚不清楚。本研究在苯肾上腺素(PE)诱导的人心肌细胞肥厚的体外模型和肌球蛋白结合蛋白c (Mybpc3)靶向敲除(KO)小鼠心肌肥厚模型中检测AZD2014。我们的研究结果表明,在Mybpc3-KO小鼠模型中,用AZD2014处理的心肌细胞保持了正常表型,AZD2014通过抑制双mTORC1和mTORC2来减轻心肌肥大,这反过来导致Akt/mTOR信号通路的下调。在线版本包含补充材料,可在10.1186/s13036-021-00276-3获得。
Cardiac hypertrophy is one of the most common genetic heart disorders and considered a risk factor for cardiac morbidity and mortality. The mammalian target of rapamycin (mTOR) pathway plays a key regulatory function in cardiovascular physiology and pathology in hypertrophy. AZD2014 is a small-molecule ATP competitive mTOR inhibitor working on both mTORC1 and mTORC2 complexes. Little is known about the therapeutic effects of AZD2014 in cardiac hypertrophy and its underlying mechanism. Here, AZD2014 is examined in in vitro model of phenylephrine (PE)-induced human cardiomyocyte hypertrophy and a myosin-binding protein-C (Mybpc3)-targeted knockout (KO) mouse model of cardiac hypertrophy. Our results demonstrate that cardiomyocytes treated with AZD2014 retain the normal phenotype and AZD2014 attenuates cardiac hypertrophy in the Mybpc3-KO mouse model through inhibition of dual mTORC1 and mTORC2, which in turn results in the down-regulation of the Akt/mTOR signaling pathway. The online version contains supplementary material available at 10.1186/s13036-021-00276-3.
DOI: 10.18632/oncotarget.188
发表时间: 2010-11
期刊: Oncotarget
影响因子: --
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