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Quantification of Monocyte Chemotactic Activity In Vivo and Characterization of Blood Monocyte Derived Macrophages
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Kurarinone isolated from Sophora flavescens Ait inhibited MCP-1-induced chemotaxis

Seung Woong Lee1, Hyun Sun Lee, Jung Yeon Nam

  • 1Laboratory of Lipid Metabolism, Korea Research Institute of Bioscience and Biotechnology, 52 Eoun-dong, Taejeon 305-333, Republic of Korea.

Journal of Ethnopharmacology
|March 3, 2005
PubMed

Insights

Kurarinone, isolated from Sophora flavescens, effectively inhibits monocyte migration, a key factor in atherosclerosis development. This natural compound also blocks MCP-1 binding and related cell signaling pathways.

Area of Science:

  • Pharmacology
  • Natural Products Chemistry
  • Cardiovascular Research

Background:

  • Monocyte accumulation in arterial walls is an early event in atherosclerotic plaque formation.
  • Monocyte chemoattractant protein-1 (MCP-1) drives monocyte migration, contributing to atherosclerotic lesion development.

Purpose of the Study:

  • To identify natural inhibitors of MCP-1-induced monocyte migration.
  • To investigate the anti-atherosclerotic potential of compounds from Sophora flavescens.

Main Methods:

  • Active-guided fractionation of MeOH extracts from Sophora flavescens Ait.
  • Structural identification of the active compound using spectral evidence.
  • Assay of THP-1 cell migration inhibition induced by MCP-1.
  • Evaluation of MCP-1 binding to THP-1 cells and p42/44 MARK phosphorylation.

Main Results:

  • Kurarinone was isolated and identified as the active compound.
  • Kurarinone inhibited MCP-1-induced THP-1 cell migration with an IC50 of 19.2 microg/mL.
  • Kurarinone demonstrated inhibition of MCP-1 binding and p42/44 MARK phosphorylation.

Conclusions:

  • Kurarinone is a novel inhibitor of MCP-1-induced monocyte migration.
  • Kurarinone possesses potential therapeutic value for preventing or treating atherosclerosis.

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