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Protective Effect of Pyrogallol-Phloroglucinol-6,6-Bieckol from Ecklonia cava on Monocyte-Associated Vascular

Seyeon Oh1, Myeongjoo Son2,3, Hye Sun Lee4,5

  • 1Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea. seyeon8965@gachon.ac.kr.

Marine Drugs
|November 15, 2018
PubMed

Insights

Pyrogallol-phloroglucinol-6,6-bieckol (PPB), a compound from Ecklonia cava, effectively reduces vascular inflammation and dysfunction. PPB shows promise for treating circulatory diseases by inhibiting monocyte activity and protecting endothelial cells.

Area of Science:

  • Marine Natural Products
  • Vascular Biology
  • Pharmacology

Background:

  • Ecklonia cava (E. cava) possesses polyphenols with potential therapeutic benefits for vascular dysfunction.
  • Limited comparative studies exist on the specific effects of E. cava polyphenols.
  • Monocyte-associated inflammation and dysfunction are key factors in vascular diseases.

Purpose of the Study:

  • To comparatively investigate the effects of four major compounds from E. cava extract.
  • To evaluate their impact on monocyte-associated vascular inflammation and dysfunction.
  • To identify the most potent compound for potential therapeutic applications.

Main Methods:

  • Isolation of four major polyphenolic compounds from an ethanoic extract of E. cava.
  • In vitro assessment of compound effects on monocyte migration and inflammatory markers.
  • Analysis of molecular pathways involved in endothelial cell protection and smooth muscle cell proliferation/migration.

Main Results:

  • Pyrogallol-phloroglucinol-6,6-bieckol (PPB) significantly inhibited monocyte migration and inflammatory macrophage differentiation.
  • PPB protected endothelial cells from death by modulating PI3K-AKT and AMPK signaling pathways.
  • PPB reduced vascular smooth muscle cell proliferation and migration via ERK and AKT pathways.

Conclusions:

  • All four investigated compounds demonstrated efficacy in reducing monocyte-associated vascular inflammation and dysfunction.
  • PPB exhibited superior activity and is identified as a potentially more valuable therapeutic agent for vascular dysfunction in circulatory diseases.

Keywords:
Ecklonia cavaendothelial cell deathfunctional ingredientsinflammationphlorotanninspoor blood circulationpyrogallol-phloroglucinol-6,6-bieckolvascular smooth muscle cell proliferation and migration

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