期刊
IUBMB LIFE
卷 71, 期 9, 页码 1268-1283出版社
WILEY
DOI: 10.1002/iub.2032
关键词
advanced glycation end products; catalpol; endothelial dysfunction; nitric oxide
资金
- National Natural Science Foundation of China [81374029, 81073111, 81874359]
- Natural Science Foundation of the Jiangsu Province Higher Education Institutions of China [18KJD360002]
- Priority Academic Program Development of Jiangsu Higher Education Institutions [JKLPSE201604]
Catalpol (Cat.) is an iridoid glucoside extracted from the root of Rehmannia glutinosa Libosch. In this study, we investigated whether Cat. could protect the mouse glomerular endothelial cells against the deleterious effect induced by advanced glycation end products (AGEs) and explored potential mechanisms. We found that 10 mu M Cat. showed a protective effect on dead cells stimulated by AGEs. Cat. significantly decreased the expression of p-NF-kappa Bp65 and inducible nitric oxide synthase (iNOS) and increased the expression of phosphorylated-endothelial nitric oxide synthase (p-eNOS; Ser1177), PI3K, p-Akt (Thr308), and total-Akt. Moreover, Cat. restored the integrity of glomerular endothelial barrier by increasing endothelial tight gap junction protein and ameliorated the endothelial hyperpermeability induced by AGEs via modulating the nitric oxide (NO) production. Additionally, Cat. attenuated the massive release of NO induced by AGEs, inhibiting the macrophage infiltration by modulating the NO production, accompanied by the decrease in the release of monocyte chemoattractant protein-1 and intercellular cell adhesion molecule-1 in vitro. Therefore, Cat. ameliorated AGEs-induced endothelial dysfunction via inhibiting the NF-kappa B/iNOS pathway and activating the PI3K/Akt/eNOS pathway. (c) 2019 IUBMB Life, 71(9):1268-1283, 2019
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