FEBS Open Bio (May 2019)

Escin suppresses HMGB1‐induced overexpression of aquaporin‐1 and increased permeability in endothelial cells

  • Changjun Chen,
  • Songgang Wang,
  • Jiying Chen,
  • Xiaolin Liu,
  • Mengchen Zhang,
  • Xi Wang,
  • Weihua Xu,
  • Yayun Zhang,
  • Hao Li,
  • Xin Pan,
  • Meng Si

DOI
https://doi.org/10.1002/2211-5463.12622
Journal volume & issue
Vol. 9, no. 5
pp. 891 – 900

Abstract

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Escin, a natural triterpene saponin mixture obtained from the horse chestnut tree (Aesculus hippocastanum), has been used for the treatment of chronic venous insufficiency (CVI), hemorrhoids, and edema. However, it is unclear how escin protects against endothelial barrier dysfunction induced by pro‐inflammatory high mobility group protein 1 (HMGB1). Here, we report that escin can suppress (a) HMGB1‐induced overexpression of the aquaporin‐1 (AQP1) water channel in endothelial cells and (b) HMGB1‐induced increases in endothelial cell permeability. This is the first report that escin inhibits AQP1 and alleviates barrier dysfunction in HMGB1‐induced inflammatory response.

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