Nicotine induces endothelial dysfunction and promotes atherosclerosis via GTPCH1.
Nicotine induces endothelial dysfunction and promotes atherosclerosis via GTPCH1.
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尼古丁通过 GTPCH1 诱导内皮功能障碍并促进动脉粥样硬化
DOI:
10.1111/jcmm.13812
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发表时间:
2018-11
影响因子:
5.3
通讯作者:
Zhang W
中科院分区:
文献类型:
--
作者:
Li J;Liu S;Cao G;Sun Y;Chen W;Dong F;Xu J;Zhang C;Zhang W
Smoking is a major preventable risk factor for atherosclerosis. However, the causative link between cigarette smoke and atherosclerosis remains to be established. The objective of this study is to characterize the role of GTP cyclohydrolase 1 (GTPCH1), the rate‐limiting enzyme for de novo tetrahydrobiopterin (BH4) synthesis, in the smoking‐accelerated atherosclerosis and the mechanism involved. In vitro, human umbilical vein endothelial cells were treated with nicotine, a major component of cigarette smoke, which reduced the mRNA and protein levels of GTPCH1 and led to endothelial dysfunction. GTPCH1 overexpression or sepiapterin could attenuate nicotine‐reduced nitric oxide and ‐increased reactive oxygen species levels. Mechanistically, human antigen R (HuR) bound with the adenylateuridylate‐rich elements of the GTPCH1 3′ untranslated region and increased its stability; nicotine inhibited HuR translocation from the nucleus to cytosol, which downregulated GTPCH1. In vivo, nicotine induced endothelial dysfunction and promoted atherosclerosis in ApoE−/− mice, which were attenuated by GTPCH1 overexpression or BH4 supplement. Our findings may provide a novel and promising approach to atherosclerosis treatment.
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DOI:
10.1073/pnas.1412172111
发表时间:
2014-12-23
影响因子:
11.1
作者:
Chang, Sung-Hee;Elemento, Olivier;Hla, Timothy
通讯作者:
Hla, Timothy
影响因子:
37.8
作者:
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Wang SX
影响因子:
7.7
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Zou MH
影响因子:
37.8
作者:
Förstermann, U;Münzel, T
通讯作者:
Münzel, T
影响因子:
7.7
作者:
Zhao Y;Wu J;Zhu H;Song P;Zou MH
通讯作者:
Zou MH