Protein Kinase A/CREB Signaling Prevents Adriamycin-Induced Podocyte Apoptosis via Upregulation of Mitochondrial Respiratory Chain Complexes
Protein Kinase A/CREB Signaling Prevents Adriamycin-Induced Podocyte Apoptosis via Upregulation of Mitochondrial Respiratory Chain Complexes
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蛋白激酶 A/CREB 信号传导通过上调线粒体呼吸链复合物防止阿霉素诱导的足细胞凋亡
DOI:
10.1128/mcb.00181-17
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发表时间:
2017-10
影响因子:
5.3
通讯作者:
Pang Huihua
中科院分区:
文献类型:
--
作者:
Xie Kewei;Zhu Mingli;Xiang Peng;Chen Xiaohuan;Kasimumali Ayijiaken;Lu Renhua;Wang Qin;Mou Shan;Ni Zhaohui;Gu Leyi;Pang Huihua
ABSTRACT Previous work showed that the activation of protein kinase A (PKA) signaling promoted mitochondrial fusion and prevented podocyte apoptosis. The cAMP response element binding protein (CREB) is the main downstream transcription factor of PKA signaling. Here we show that the PKA agonist 8-(4-chlorophenylthio)adenosine 3′,5′-cyclic monophosphate–cyclic AMP (pCPT-cAMP) prevented the production of adriamycin (ADR)-induced reactive oxygen species and apoptosis in podocytes, which were inhibited by CREB RNA interference (RNAi). The activation of PKA enhanced mitochondrial function and prevented the ADR-induced decrease of mitochondrial respiratory chain complex I subunits, NADH-ubiquinone oxidoreductase complex (ND) 1/3/4 genes, and protein expression. Inhibition of CREB expression alleviated pCPT-cAMP-induced ND3, but not the recovery of ND1/4 protein, in ADR-treated podocytes. In addition, CREB RNAi blocked the pCPT-cAMP-induced increase in ATP and the expression of peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC1-α). The chromatin immunoprecipitation assay showed enrichment of CREB on PGC1-α and ND3 promoters, suggesting that these promoters are CREB targets. In vivo, both an endogenous cAMP activator (isoproterenol) and pCPT-cAMP decreased the albumin/creatinine ratio in mice with ADR nephropathy, reduced glomerular oxidative stress, and retained Wilm's tumor suppressor gene 1 (WT-1)-positive cells in glomeruli. We conclude that the upregulation of mitochondrial respiratory chain proteins played a partial role in the protection of PKA/CREB signaling.
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DOI:
10.1007/s10157-015-1102-6
发表时间:
2015-03
期刊:
Clin Exp Nephrol
影响因子:
--
作者:
Leyi Gu
通讯作者:
Leyi Gu
影响因子:
5.6
作者:
Wang L;Zhu J;Fang M;Zhang T;Xie H;Wang N;Shen N;Guo H;Fu B;Lin H
通讯作者:
Lin H
影响因子:
8
作者:
Zhang, Fan;Zhang, Liping;Qi, Yun;Xu, Hong
通讯作者:
Xu, Hong
DOI:
10.1038/nrm3072
发表时间:
2011-03
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
64.5
作者:
Vyas S;Zaganjor E;Haigis MC
通讯作者:
Haigis MC