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
复制标题

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
复制
发表时间:
2017-10
影响因子:
5.3
通讯作者:
Pang Huihua
Pang Huihua
中科院分区:
生物学2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

文献摘要

参考文献

被引文献

相似文献

摘要以前的工作表明蛋白激酶A(PKA)信号的激活促进线粒体融合并阻止足细胞凋亡。cAMP反应元件结合蛋白(CREB)是PKA信号转导的主要下游转录因子。我们发现PKA激动剂8-(4-氯苯硫基)腺苷3′,5 ′-环一磷酸环腺苷(pCPT-cAMP)可抑制阿霉素(ADR)诱导的足细胞活性氧自由基的产生和细胞凋亡,而CREB RNA干扰(RNAi)可抑制这种作用。PKA的激活增强线粒体功能,并防止ADR诱导的线粒体呼吸链复合物I亚基、NADH-泛醌氧化还原酶复合物(ND)1/3/4基因和蛋白质表达的降低。抑制CREB的表达减轻了pCPT-cAMP诱导的ND 3,但没有恢复ND 1/4蛋白,在ADR处理的足细胞。此外,CREB RNAi阻断了pCPT-cAMP诱导的ATP增加和过氧化物酶体增殖物激活受体γ共激活因子1 α(PGC 1-α)的表达。染色质免疫沉淀分析显示CREB在PGC 1-α和ND 3启动子上富集,表明这些启动子是CREB的靶点。在体内,内源性cAMP激活剂(异丙肾上腺素)和pCPT-cAMP降低了ADR肾病小鼠的白蛋白/肌酐比值,降低了肾小球氧化应激,并保留了肾小球中的Wilm肿瘤抑制基因1(WT-1)阳性细胞。我们的结论是,线粒体呼吸链蛋白的上调发挥了部分作用的保护PKA/CREB信号。
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.
环 AMP 可防止受损足细胞中磷酸化的埃兹蛋白 / 根蛋白 / moesin 和氯细胞内通道 5 表达的减少
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
DOI: 10.3390/ijms151121314
发表时间: 2014-11-18
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
线粒体营地信号传导。
DOI: 10.1007/s00018-016-2282-2
发表时间: 2016-12
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: --
DOI: 10.1016/j.cell.2016.07.002
发表时间: 2016-07-28
期刊: Cell
影响因子: 64.5
作者:
Vyas S;Zaganjor E;Haigis MC
通讯作者: Haigis MC