Oleanolic acid ameliorates high glucose-induced endothelial dysfunction via PPARδ activation.
Oleanolic acid ameliorates high glucose-induced endothelial dysfunction via PPARδ activation.
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齐墩果酸通过 PPARδ 激活改善高葡萄糖诱导的内皮功能障碍
DOI:
10.1038/srep40237
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发表时间:
2017-01-09
影响因子:
4.6
通讯作者:
Wang N
中科院分区:
文献类型:
--
作者:
Zhang Z;Jiang M;Xie X;Yang H;Wang X;Xiao L;Wang N
Oleanolic acid (3β-hydroxyolean-12-en-28-oic acid, OA) is a pentacyclic triterpenes widely distributed in food, medicinal plants and nutritional supplements. OA exhibits various pharmacological properties, such as hepatoprotective and anti-tumor effects. In this study, we analyzed the effect of OA on endothelial dysfunction induced by high glucose in human vascular endothelial cells (ECs). Western blotting showed that OA attenuated high glucose-reduced nitric production oxide (NO) as well as Akt-Ser473and eNOS-Ser1177phosphorylation in cultured human umbilical vein ECs (HUVECs). Next, luciferase reporter assay showed that OA activated peroxisome proliferators-activated receptor δ (PPARδ) activity. Quantitative reverse transcriptase PCR (qRT-PCR) demonstrated that OA increased the expressions of PPARδ target genes (PDK4, ADRP and ANGPTL4) in ECs. Meanwhile, the induced expressions of PDK4, ADRP and ANGPTL4 by OA were inhibited by GSK0660, a specific antagonist of PPARδ. In addition, inhibition of PPARδ abolished OA-induced the Akt-Ser473and eNOS-Ser1177phosphorylation, and NO production. Finally, by using Multi Myograph System, we showed that OA prevented high glucose-impaired vasodilation. This protective effect on vasodilation was inhibited in aortic rings pretreated with GSK0660. Collectively, we demonstrated that OA improved high glucose-impaired endothelial function via a PPARδ-mediated mechanism and through eNOS/Akt/NO pathway.
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影响因子:
0.7
作者:
Mudau M;Genis A;Lochner A;Strijdom H
通讯作者:
Strijdom H
影响因子:
7.3
作者:
Rodriguez-Rodriguez, R.;Stankevicius, E.;Simonsen, U.
通讯作者:
Simonsen, U.
影响因子:
7.3
作者:
Quintela, A. M.;Jimenez, R.;Duarte, J.
通讯作者:
Duarte, J.
DOI:
10.1152/ajpendo.2000.279.1.e11
发表时间:
2000-07-01
影响因子:
5.1
作者:
Ding, YX;Vaziri, ND;Roh, DD
通讯作者:
Roh, DD
影响因子:
13.5
作者:
Qin, Xiaomei;Xie, Xuefen;Wang, Nanping
通讯作者:
Wang, Nanping