Green tea polyphenol (-)-epigallocatechin-3-gallate protects rat PC12 cells from apoptosis induced by serum withdrawal independent of P13-Akt pathway

Neurotox Res. 2003;5(6):419-24. doi: 10.1007/BF03033171.

Abstract

Our recent studies have demonstrated that green tea polyphenol (-)-epigallocatechin-3-gallate (EGCG) exerts neuroprotective/neurorescue effects against B-amyloid toxicity and protects neuronal cells from 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridinium ion (MPP+) and 6-hydroxydopamine in vitro, or from N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine- (MPTP-) induced nigral dopaminergic neuronal loss in mice. In the present study, we report that EGCG (0.1 and 1 microM) significantly protects rat pheochromocytoma PC12 cells from apoptosis induced by serum support withdrawal, suggesting that EGCG may play a role in the growth of PC12 cells, where it stimulates survival-promoting pathways.

MeSH terms

  • Animals
  • Apoptosis / drug effects*
  • Blotting, Western
  • Caspase 3
  • Caspases / metabolism
  • Catechin / analogs & derivatives*
  • Catechin / pharmacology*
  • Cell Survival / drug effects
  • Culture Media, Serum-Free
  • Nerve Growth Factors / pharmacology
  • Neuroprotective Agents / pharmacology*
  • PC12 Cells
  • Rats

Substances

  • Culture Media, Serum-Free
  • Nerve Growth Factors
  • Neuroprotective Agents
  • Catechin
  • epigallocatechin gallate
  • Casp3 protein, rat
  • Caspase 3
  • Caspases