期刊
ARCHIVES OF PHYSIOLOGY AND BIOCHEMISTRY
卷 119, 期 5, 页码 189-194出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/13813455.2013.803578
关键词
Cystathionine gamma lyase; endoplasmic reticulum stress; protein tyrosine phosphatase 1B (PTP1B); sulfhydration
Hydrogen sulphide (H2S) is the most recently discovered gasotransmitter. It is endogenously generated in mammalian vascular cells and attracts substantial interest by its function as physiological relevant signalling mediator, and by its dysfunction in metabolic diseases like obesity, type 2 diabetes and their associated complications. The purpose of this review is to highlight the novel findings on vascular H2S homeostasis, pathology-associated dysregulation, cell signalling, and therapeutic potential. The data bases searched were Medline and PubMed, from 2008 to 2012 (terms: hydrogen sulphide, sulfhydration). The new reports definitely assess the vasculoprotectant role of H2S in health, and its reduced biosynthesis/systemic levels in obesity, diabetes, atherosclerosis and hypertension. One of the mechanisms of H2S signalling discussed here is S-sulfhydration of catalytic cysteine residue of PTP1B, a negative regulator of insulin and leptin signalling. Finally, the review critically evaluates the compounds able to regulate vascular H2S bioavailability, and with potential in therapeutic exploitation.
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