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Zhonghua Xin Xue Guan Bing Za Zhi. 2011 Nov;39(11):1039-43.

[Resolvin E1 protects against ox-LDL-induced injury on vascular endothelial cells].

[Article in Chinese]

Author information

1
Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.

Abstract

OBJECTIVE:

To investigate whether Resolvin E1 (RvE1) could protect against ox-LDL-induced injury on human vein vascular endothelial cells and reveal related molecular mechanisms.

METHODS:

Human vein vascular endothelial cells were randomly assigned to six groups, which were treated with saline, RvE1, wortmanin, ox-LDL, ox-LDL and RvE1, ox-LDL and RvE1 and wortmanin, respectively. After 48 h, survival rates were determined by MTT, apoptosis rate of cells were determined by flow cytometry, TNF-α contents were assayed by ELISA, caspase 3 and 9 activities were measured by microplate reader, and the expression of p-AKT and LOX-1 were determined by Western blot.

RESULT:

Compared with normal saline group, survival rate was markedly decreased and apoptosis rate, TNF-α content, caspase 3 and 9 activities, and the expression of LOX-1 were significantly increased in ox-LDL group (P < 0.01). Survival rate was significantly increased and apoptosis rate, TNF-α content, caspase 3 and 9 activities, and the expression of LOX-1 were significantly decreased in ox-LDL + RvE1 group compared to ox-LDL group (P < 0.01), these beneficial effects of RvE1 could be blocked by PI3K inhibitor wortmanin (P < 0.05).

CONCLUSION:

The present data showed that RvE1 could effectively protect against ox-LDL-induced endothelial cell injury, which might be mediated by PI3K-AKT signaling pathway.

PMID:
22336459
[Indexed for MEDLINE]

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