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Phytoestrogen calycosin-7-O-β-D-glucopyranoside Ameliorates Advanced Glycation End Products-Induced HUVEC Damage

Phytoestrogen calycosin-7-O-β-D-glucopyranoside Ameliorates Advanced Glycation End Products-Induced HUVEC Damage

Youhua Xu, Liang Feng, Shanshan Wang, Quan Zhu, Jing Lin, Chihan Lou, Ping Xiang, Bao He, Zhaoguang Zheng, Dan Tang, Guoying Zuo

J Cell Biochem. 2011 Oct;112(10):2953-65.

PMID: 21647942

Abstract:

Vasculopathy including endothelial cell (EC) apoptosis and inflammation contributes to the high incidence of stroke and myocardial infarction in diabetic patients. The aim of the present study was to investigate the effect of calycosin-7-O-β-D-glucopyranoside (CG), a phytoestrogen, on advanced glycation end products (AGEs)-induced HUVEC damage. We observed that CG can significantly ameliorate AGEs-induced HUVEC oxidative stress and apoptosis. The ratio of SOD/MDA was significantly increased to the normal level by CG pretreatment. CG preincubation dramatically increased anti-apoptotic Bcl-2 while decreased pro-apoptotic Bax and Bad expressions as detected by immunocytochemistry. Moreover, CG ameliorated macrophage migration and adhesion to HUVEC; the monocyte chemotactic protein-1 and interleukin-6 levels in the culture supernatant were dramatically reduced by CG as determined by ELISA; the expressions of inflammatory proteins including ICAM-1, TGF-β1, and RAGE in both protein and mRNA levels were significantly reduced to the normal level by CG pretreatment as determined by immunocytochemistry and real-time RT-PCR. The intracellular investigation suggests that CG can reverse AGEs-activated ERK1/2 and NF-κB phosphorylation, in which estrogen receptors were involved in. Our results strongly indicate that CG can modulate EC dysfunction by ameliorating AGEs-induced cell apoptosis and inflammation.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP20633674	Calycosin 7-O-β-D-glucopyranoside		20633-67-4	Price

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