Chondroitin sulfate extracted from the Styela clava tunic suppresses TNF-alpha-induced expression of inflammatory factors, VCAM-1 and iNOS by blocking Akt/NF-kappaB signal in JB6 cells

Cancer Lett. 2008 Jun 8;264(1):93-100. doi: 10.1016/j.canlet.2008.01.022. Epub 2008 Mar 4.

Abstract

Inflammatory mediators are known to play a key role in tumorigenesis, therefore, it is a promising strategy to inhibit the inflammation for cancer prevention and/or treatment. Current study was performed to investigate the effects of chondroitin sulfate (CS) extracted from Styela clava tunic on TNF-alpha-induced inflammation and to elucidate the mechanism of CS on the regulation of inflammatory factors in JB6 cells. Our results showed that CS inhibited TNF-alpha-induced NF-kappaB activation and subsequent vascular cell adhesion molecule 1 and inducible nitric oxide synthase expressions by blocking Akt signals in JB6 cells. Our results suggest that CS may be developed as an effective anti-inflammatory agent in the future.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / isolation & purification
  • Anti-Inflammatory Agents / pharmacology
  • Blotting, Western
  • Cell Line
  • Cell Survival
  • Chondroitin Sulfates / isolation & purification
  • Chondroitin Sulfates / pharmacology*
  • Down-Regulation / drug effects
  • Epidermis / chemistry
  • Inflammation / chemically induced
  • Inflammation / metabolism
  • Inflammation Mediators / metabolism*
  • Mice
  • NF-kappa B / metabolism*
  • Nitric Oxide Synthase Type II / metabolism
  • Proto-Oncogene Proteins c-akt / metabolism*
  • Signal Transduction / drug effects
  • Tumor Necrosis Factor-alpha / antagonists & inhibitors*
  • Tumor Necrosis Factor-alpha / pharmacology
  • Urochordata / chemistry*
  • Vascular Cell Adhesion Molecule-1 / metabolism

Substances

  • Anti-Inflammatory Agents
  • Inflammation Mediators
  • NF-kappa B
  • Tumor Necrosis Factor-alpha
  • Vascular Cell Adhesion Molecule-1
  • Chondroitin Sulfates
  • Nitric Oxide Synthase Type II
  • Nos2 protein, mouse
  • Proto-Oncogene Proteins c-akt