Cigarette smoke-induced autophagy is regulated by SIRT1-PARP-1-dependent mechanism: implication in pathogenesis of COPD.
Cigarette smoke-induced autophagy is regulated by SIRT1-PARP-1-dependent mechanism: implication in pathogenesis of COPD.
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DOI:
10.1016/j.abb.2010.05.013
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发表时间:
2010-08-15
影响因子:
3.9
通讯作者:
Rahman, Irfan
中科院分区:
文献类型:
--
作者:
Hwang, Jae-woong;Chung, Sangwoon;Sundar, Isaac K.;Yao, Hongwei;Arunachalam, Gnanapragasam;McBurney, Michael W.;Rahman, Irfan
Autophagy is a fundamental cellular process that eliminates long-lived proteins and damaged organelles through lysosomal degradation pathway. Cigarette smoke (CS)-mediated oxidative stress induces cytotoxic responses in lung cells. However, the role of autophagy and its mechanism in CS-mediated cytotoxic responses is not known. We hypothesized that NAD+-dependent deacetylase, sirtuin 1 (SIRT1) plays an important role in regulating autophagy in response to CS. CS exposure resulted in induction of autophagy in lung epithelial cells, fibroblasts and macrophages. Pretreatment of cells with SIRT1 activator resveratrol attenuated CS-induced autophagy whereas the SIRT1 inhibitor, sirtinol, augmented CS-induced autophagy. Elevated levels of autophagy were induced by CS in the lungs of SIRT1 deficient mice. Inhibition of poly(ADP-ribose)-polymerase-1 (PARP-1) attenuated CS-induced autophagy via SIRT1 activation. These data suggest that the SIRT1-PARP-1 axis plays a critical role in the regulation of CS-induced autophagy and have important implications in understanding the mechanisms of CS-induced cell death and senescence.
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DOI:
10.1016/j.bbrc.2009.12.161
发表时间:
2010-02-12
影响因子:
3.1
作者:
Caito, Samuel;Hwang, Jae-woong;Chung, Sangwoon;Yao, Hongwei;Sundar, Isaac K.;Rahman, Irfan
通讯作者:
Rahman, Irfan
影响因子:
12.4
作者:
Huang, Q.;Wu, Y-T;Shen, H-M
通讯作者:
Shen, H-M
DOI:
10.1146/annurev.pathol.4.110807.092250
发表时间:
2010
期刊:
Annual review of pathology
影响因子:
--
作者:
Haigis MC;Sinclair DA
通讯作者:
Sinclair DA
DOI:
10.1016/j.bbrc.2010.01.080
发表时间:
2010-02-26
影响因子:
3.1
作者:
Arunachalam, Gnanapragasam;Yao, Hongwei;Sundar, Isaac K.;Caito, Samuel;Rahman, Irfan
通讯作者:
Rahman, Irfan
影响因子:
5.8
作者:
Kode, Aruna;Yang, Se-Ran;Rahman, Irfan
通讯作者:
Rahman, Irfan