Cytoprotective effect of hispidin against palmitate-induced lipotoxicity in C2C12 myotubes

Molecules. 2015 Mar 27;20(4):5456-67. doi: 10.3390/molecules20045456.

Abstract

It is well known that Phellinus linteus, which produces hispidin and its derivatives, possesses antioxidant activities. In this study, we investigated whether hispidin has protective effects on palmitate-induced oxidative stress in C2C12 skeletal muscle cells. Our results showed that palmitate treatment in C2C12 myotubes increased ROS generation and cell death as compared with the control. However, pretreatment of hispidin for 8 h improved the survival of C2C12 myotubes against palmitate-induced oxidative stress via inhibition of intracellular ROS production. Hispidin also inhibited palmitate-induced apoptotic nuclear condensation in C2C12 myotubes. In addition, we found that hispidin can suppress cleavage of caspase-3, expression of Bax, and NF-κB translocation. Therefore, these results suggest that hispidin is capable of protecting C2C12 myotubes against palmitate-induced oxidative stress.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Caspase 3 / metabolism
  • Cell Line
  • Cell Survival / drug effects
  • Cytoprotection*
  • Dose-Response Relationship, Drug
  • Gene Expression Regulation / drug effects
  • Mice
  • Muscle Fibers, Skeletal / cytology
  • Muscle Fibers, Skeletal / drug effects*
  • NF-kappa B / metabolism
  • Oxidative Stress / drug effects*
  • Palmitic Acid / adverse effects
  • Palmitic Acid / pharmacology
  • Pyrones / pharmacology*
  • Reactive Oxygen Species / metabolism*
  • bcl-2-Associated X Protein / metabolism

Substances

  • NF-kappa B
  • Pyrones
  • Reactive Oxygen Species
  • bcl-2-Associated X Protein
  • Palmitic Acid
  • Caspase 3
  • hispidin