Li Zhang, Bailing Luo, Yuan Ting, Shengyang He, Lihua Xie, Shenghua Sun
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SIRT1 attenuates endoplasmic reticulum stress and apoptosis in rat models of COPD.
The present study aimed to investigate the protective role of sirtuin 1 (SIRT1) and oxygen regulated protein 150 (ORP150) in a rat COPD model by inducing changes in ER stress and apoptosis. We separated 48 Sprague Dawley (SD) rats into four groups randomly: the control group, resveratrol group, COPD group and the resveratrol intervention group. Rats were challenged with cigarette smoke and lipopolysaccharide with resveratrol (a selective activator of SIRT1). The lung functions of the rats were measured and recorded. The expression levels of SIRT1 and ORP150 in lung tissues were examined by western blot and RTq PCR. The expression levels of the ER stress apoptosis-associated protein were determined .The apoptotic level of lung tissues was analyzed. The results suggest that SIRT1 attenuated apoptosis and ER stress in the lung tissues of rats with COPD. During this process, a positive correlation was identified between SIRT1 and ORP150.
期刊介绍：
Growth Factors is an international and interdisciplinary vehicle publishing new knowledge and findings on the regulators of cell proliferation, differentiation and survival. The Journal will publish research papers, short communications and reviews on current developments in cell biology, biochemistry, physiology or pharmacology of growth factors, cytokines or hormones which improve our understanding of biology or medicine. Among the various fields of study topics of particular interest include: •Stem cell biology •Growth factor physiology •Structure-activity relationships •Drug development studies •Clinical applications
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