SIRT1 Activation by Resveratrol Alleviates Cardiac Dysfunction via Mitochondrial Regulation in Diabetic Cardiomyopathy Mice.
SIRT1 Activation by Resveratrol Alleviates Cardiac Dysfunction via Mitochondrial Regulation in Diabetic Cardiomyopathy Mice.
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白藜芦醇激活SIRT1通过糖尿病心肌病小鼠的线粒体调节来减轻心脏功能障碍。
DOI:
10.1155/2017/4602715
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发表时间:
2017
影响因子:
--
通讯作者:
Cao F
中科院分区:
文献类型:
--
作者:
Ma S;Feng J;Zhang R;Chen J;Han D;Li X;Yang B;Li X;Fan M;Li C;Tian Z;Wang Y;Cao F
Diabetic cardiomyopathy (DCM) is a major threat for diabetic patients. Silent information regulator 1 (SIRT1) has a regulatory effect on mitochondrial dynamics, which is associated with DCM pathological changes. Our study aims to investigate whether resveratrol, a SRIT1 activator, could exert a protective effect against DCM. Cardiac-specific SIRT1 knockout (SIRT1KO) mice were generated using Cre-loxP system. SIRT1KO mice displayed symptoms of DCM, including cardiac hypertrophy and dysfunction, insulin resistance, and abnormal glucose metabolism. DCM and SIRT1KO hearts showed impaired mitochondrial biogenesis and function, while SIRT1 activation by resveratrol reversed this in DCM mice. High glucose caused increased apoptosis, impaired mitochondrial biogenesis, and function in cardiomyocytes, which was alleviated by resveratrol. SIRT1 deletion by both SIRT1KO and shRNA abolished the beneficial effects of resveratrol. Furthermore, the function of SIRT1 is mediated via the deacetylation effect on peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), thus inducing increased expression of nuclear respiratory factor 1 (NRF-1), NRF-2, estrogen-related receptor-α (ERR-α), and mitochondrial transcription factor A (TFAM). Cardiac deletion of SIRT1 caused phenotypes resembling DCM. Activation of SIRT1 by resveratrol ameliorated cardiac injuries in DCM through PGC-1α-mediated mitochondrial regulation. Collectively, SIRT1 may serve as a potential therapeutic target for DCM.
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DOI:
10.1038/nrd3738
发表时间:
2012-06-01
期刊:
Nature reviews. Drug discovery
影响因子:
--
作者:
Baur JA;Ungvari Z;Minor RK;Le Couteur DG;de Cabo R
通讯作者:
de Cabo R
DOI:
10.1016/j.bbamcr.2011.01.014
发表时间:
2011-07
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Duncan JG
通讯作者:
Duncan JG
影响因子:
4.8
作者:
Christoffersen, C;Bollano, E;Nielsen, LB
通讯作者:
Nielsen, LB
影响因子:
82.9
作者:
Cote, Clemence D.;Rasmussen, Brittany A.;Lam, Tony K. T.
通讯作者:
Lam, Tony K. T.
影响因子:
7.4
作者:
Huang, Hung-Pang;Huang, Shiang-Suo;Hung, Li-Man
通讯作者:
Hung, Li-Man