Up-regulation of GAP-43 (B50/F1) gene expression in vestibular efferent neurons following labyrinthectomy in the rat: in situ hybridization using an alkaline phosphatase-labeled probe

Hear Res. 1994 Oct;80(1):123-7. doi: 10.1016/0378-5955(94)90016-7.

Abstract

Growth-associated protein (GAP)-43 plays a significant role in nerve regeneration and synaptic remodeling. We examined the profiles of GAP-43 mRNA expression in vestibular efferent neurons after labyrinthectomy in adult rats, and clearly demonstrated that labyrinthectomy increased GAP-43 expression in these neurons. This finding suggests the ability of vestibular efferent nerves to regenerate after nerve injury.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaline Phosphatase / metabolism
  • Animals
  • Ear, Inner / surgery
  • GAP-43 Protein
  • Gene Expression Regulation / genetics*
  • In Situ Hybridization
  • Male
  • Membrane Glycoproteins / genetics*
  • Nerve Tissue Proteins / genetics*
  • Neurofilament Proteins / genetics*
  • Neurons, Efferent / cytology
  • Neurons, Efferent / physiology*
  • RNA, Messenger / biosynthesis
  • RNA, Messenger / genetics
  • Rats
  • Rats, Wistar
  • Up-Regulation
  • Vestibule, Labyrinth / innervation*

Substances

  • GAP-43 Protein
  • Membrane Glycoproteins
  • Nerve Tissue Proteins
  • Neurofilament Proteins
  • RNA, Messenger
  • Alkaline Phosphatase