Abstract:
:Glucosamine is a possible cause of vascular endothelial injury in the initial stages of atherosclerosis, through endoplasmic reticulum (ER) stress resulting in fatty streaks in the vascular wall. Quercetin is an anti‑diabetic and cardiovascular protective agent that has previously been demonstrated to reduce ER stress in human umbilical vein endothelial cells (HUVECs). The present study aimed to investigate whether quercetin prevents glucosamine‑induced apoptosis and inflammation via ER stress pathway in HUVECs. The effect of quercetin on cell viability, apoptosis, and protein expression levels of inflammatory cytokines and ER stress markers was investigated in glucosamine‑supplemented HUVECs. Quercetin was demonstrated to protect against glucosamine‑induced apoptosis, improved cell viability, and inhibited expression of pro‑inflammatory factors and endothelin‑1. Quercetin treatment also reduced the expression levels of glucose‑regulated protein 78, phosphorylated protein kinase‑like ER kinase, phosphorylated c‑Jun N‑terminal kinase and C/EBP homologous protein. In conclusion, quercetin may have auxiliary therapeutic potential against glucosamine‑induced cell apoptosis and inflammation, which may be partially due to alleviation of ER stress.
journal_name
Mol Med Repjournal_title
Molecular medicine reportsauthors
Cai X,Bao L,Ding Y,Dai X,Zhang Z,Li Ydoi
10.3892/mmr.2016.6054subject
Has Abstractpub_date
2017-02-01 00:00:00pages
825-832issue
2eissn
1791-2997issn
1791-3004journal_volume
15pub_type
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