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Article

Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling

  • Authors:
    • Yuyu Qiu
    • Bin Du
    • Fengshan Xie
    • Weiwei Cai
    • Yanling Liu
    • Yue Li
    • Lei Feng
    • Liying Qiu
  • View Affiliations / Copyright

    Affiliations: Laboratory of Tumor Pharmacology, Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, P.R. China, Laboratory of Natural Medicine, School of Pharmaceutical Science, Jiangnan University, Wuxi, Jiangsu 214122, P.R. China
  • Pages: 2143-2150
    |
    Published online on: January 20, 2016
       https://doi.org/10.3892/mmr.2016.4801
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Abstract

Endothelial cell injury is a critical component of atherosclerosis and hypertension. Vaccarin is considered to be of potential benefit in the treatment of vascular diseases. The aim of the present study was to evaluate the possible effects of vaccarin in human EA·hy926 cells induced by high glucose, and to investigate its underlying mechanism in the prevention and treatment of high glucose‑induced injury. In the present study, EA·hy926 cells were exposed to 90, 180 and 270 mM high glucose for 24 h, and the induced cell injury was examined using a sulforhodamine B assay. Following treatment with high glucose, it was found that high glucose stimulated cell injury, resulting in reduced cell viability and migratory ability, increased lactate dehydrogenase (LDH) leakage and malondialdehyde (MDA) levels, and decreased superoxide dismutase (SOD) activity. High glucose further accelerated cell apoptosis via activating Notch1 and Hairy and enhancer of split 1. It was found that preincubation with vaccarin protected the EA·hy926 cells from high glucose‑induced cell injury, which promoted cell viability and migratory ability, inhibited the expression levels of LDH and MDA, and enhanced the activity of SOD. Cell migratory ability, LDH leakage, MDA levels and decreasing SOD activity were evaluated using a wound healing assay and corresponding assay kits. Cell apoptosis was detected by flow cytometry with an Annexin V‑fluorescein isothiocyanate/propidium iodide apoptosis detection kit and Hoechst staining. Furthermore, western blotting was used to detect the protein expression levels of Notch1, Hes1 and caspase‑3. In particular, in addition to inducing the downregulation of Notch signaling, vaccarin treatment downregulated the cell apoptotic pathway‑associated protein caspase 3. These findings suggested that vaccarin may be able to selectively protect the vascular endothelium from dysfunction induced by high glucose.
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Copy and paste a formatted citation
Spandidos Publications style
Qiu Y, Du B, Xie F, Cai W, Liu Y, Li Y, Feng L and Qiu L: Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling. Mol Med Rep 13: 2143-2150, 2016.
APA
Qiu, Y., Du, B., Xie, F., Cai, W., Liu, Y., Li, Y. ... Qiu, L. (2016). Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling. Molecular Medicine Reports, 13, 2143-2150. https://doi.org/10.3892/mmr.2016.4801
MLA
Qiu, Y., Du, B., Xie, F., Cai, W., Liu, Y., Li, Y., Feng, L., Qiu, L."Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling". Molecular Medicine Reports 13.3 (2016): 2143-2150.
Chicago
Qiu, Y., Du, B., Xie, F., Cai, W., Liu, Y., Li, Y., Feng, L., Qiu, L."Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling". Molecular Medicine Reports 13, no. 3 (2016): 2143-2150. https://doi.org/10.3892/mmr.2016.4801
Copy and paste a formatted citation
x
Spandidos Publications style
Qiu Y, Du B, Xie F, Cai W, Liu Y, Li Y, Feng L and Qiu L: Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling. Mol Med Rep 13: 2143-2150, 2016.
APA
Qiu, Y., Du, B., Xie, F., Cai, W., Liu, Y., Li, Y. ... Qiu, L. (2016). Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling. Molecular Medicine Reports, 13, 2143-2150. https://doi.org/10.3892/mmr.2016.4801
MLA
Qiu, Y., Du, B., Xie, F., Cai, W., Liu, Y., Li, Y., Feng, L., Qiu, L."Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling". Molecular Medicine Reports 13.3 (2016): 2143-2150.
Chicago
Qiu, Y., Du, B., Xie, F., Cai, W., Liu, Y., Li, Y., Feng, L., Qiu, L."Vaccarin attenuates high glucose-induced human EA•hy926 endothelial cell injury through inhibition of Notch signaling". Molecular Medicine Reports 13, no. 3 (2016): 2143-2150. https://doi.org/10.3892/mmr.2016.4801
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