Expression of nerve growth factor in the dorsal root ganglion after peripheral nerve injury

Seo Eun Lee, Hong Shen, Giulio Taglialatela, Jin Mo Chung, Kyungsoon Chung

Research output: Contribution to journalArticle

70 Scopus citations

Abstract

Nerve growth factor (NFG) is believed to play a critical role in altering the phenotypic and functional properties of dorsal root ganglion (DRG) cells after a pathological insult. The present study examined NGF protein levels and NFG immunoreactivity (NFG-IR) in the DRG at multiple time points following peripheral nerve injury. The NGF protein level in the ipsilateral DRG decreased dramatically at 6 hr after the injury, but recovered to an almost normal level at 2 days. In accordance with the NGF level, the proportion of NGF-IR neurons also showed a significant decrease at 6 h after the injury, but recovered to the normal level at 3 days. In addition, NGF-IR can also be found in satellite cells at a time point of 3 days after the injury. These data suggest that there is an increase in synthesis of NGF within the DRG after peripheral nerve injury, which contributes to the recovery of NGF levels. The newly synthesized NGF may play important roles in the reactions of DRG neurons to peripheral nerve injury.

Original languageEnglish (US)
Pages (from-to)99-106
Number of pages8
JournalBrain Research
Volume796
Issue number1-2
DOIs
StatePublished - Jun 15 1998

Keywords

  • Dorsal root ganglion
  • Nerve growth factor
  • Peripheral nerve injury

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

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