Platelet-derived growth factor-BB, but not -AA, prevents delayed neuronal death after forebrain ischemia in rats

J Cereb Blood Flow Metab. 1997 Oct;17(10):1097-106. doi: 10.1097/00004647-199710000-00012.


Our previous studies demonstrated coordinate expression of platelet-derived growth factor (PDGF) -B chain and beta-receptor in neurons at risk in the rat brain with focal ischemia. To clarify a role of the -B chain in the brain further, we examined whether PDGF-A or -B chain protects CA1 pyramidal neurons from delayed neuronal death after forebrain ischemia in rats. Pretreatment with PDGF-BB, but not -AA, at 120 ng/d for 2 days until forebrain ischemia was performed markedly ameliorated delayed neuronal death in CA1 pyramidal neurons on day 7 after ischemia. This neuroprotective effect of PDGF-BB was dose-dependent, and pretreatment with PDGF-BB at 240 ng/d showed almost complete inhibition of delayed neuronal death. In contrast, posttreatment with PDGF-BB at 120 ng/d starting 20 minutes after ischemia demonstrated no significant neuroprotective effect. The current study established marked neuroprotective actions of PDGF-BB in ischemic neuronal damage.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anticoagulants / therapeutic use*
  • Becaplermin
  • Cell Death*
  • Glial Fibrillary Acidic Protein / analysis
  • Hippocampus / pathology
  • Ischemic Attack, Transient / drug therapy*
  • Ischemic Attack, Transient / pathology*
  • Male
  • Neurons / pathology*
  • Platelet-Derived Growth Factor / therapeutic use*
  • Prosencephalon / blood supply
  • Proto-Oncogene Proteins c-sis
  • Rats
  • Rats, Wistar


  • Anticoagulants
  • Glial Fibrillary Acidic Protein
  • Platelet-Derived Growth Factor
  • Proto-Oncogene Proteins c-sis
  • platelet-derived growth factor A
  • Becaplermin