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Anthocyanin attenuates CD40-mediated endothelial cell activation and apoptosis by inhibiting CD40-induced MAPK

Min Xia1, Wenhua Ling, Huilian Zhu

  • 1Department of Nutrition, School of Public Health, Sun Yat-Sen University (Northern Campus) 74 Zhongshan Road 2, Guangzhou 510080, Guangdong Province, PR China.

Atherosclerosis
|May 23, 2008
PubMed

Insights

Anthocyanins prevent CD40-induced endothelial cell activation and apoptosis, key in atherosclerosis development. These compounds inhibit inflammatory signaling pathways, suggesting a mechanism for their cardiovascular-protective effects.

Area of Science:

  • Cardiovascular Biology
  • Cellular Signaling
  • Nutraceutical Research

Background:

  • CD40-mediated signaling activates endothelial cells (ECs), contributing to atherosclerosis.
  • Anthocyanins are known for cardiovascular protection, but their anti-inflammatory mechanisms are unclear.

Purpose of the Study:

  • To investigate anthocyanins' effects on CD40-induced EC activation and apoptosis.
  • To elucidate the underlying molecular mechanisms of anthocyanin's anti-atherosclerotic function.

Main Methods:

  • Utilized cultured human umbilical vein endothelial cells (HUVECs).
  • Stimulated HUVECs with CD40/CD40L and treated with specific anthocyanins (Cy-3-g, Pn-3-g).
  • Assessed MMP production/activity, apoptosis, and JNK/p38 activation.

Main Results:

  • Anthocyanins inhibited CD40-induced production of pro-inflammatory cytokines and matrix metalloproteinases (MMPs).
  • Anthocyanins prevented CD40-mediated EC apoptosis and reduced JNK and p38 activation.
  • Specific anthocyanins cyanidin-3-O-beta-glucoside and peonidin-3-O-beta-glucoside demonstrated these effects.

Conclusions:

  • Anthocyanins inhibit CD40-induced endothelial activation and apoptosis.
  • Inhibition of JNK and p38 pathways is a key mechanism for anthocyanin's anti-inflammatory and athero-protective effects.
  • Findings support anthocyanins as potential agents for cardiovascular disease prevention.

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