Coexpression of trk family members and low-affinity neurotrophin receptors in rat dorsal root ganglion neurons

Brain Res Mol Brain Res. 1995 May;30(1):158-64. doi: 10.1016/0169-328x(94)00249-e.

Abstract

We examined the colocalization of trk family and low-affinity neurotrophin receptor (LANR) mRNAs by means of in situ hybridization histochemistry in rat dorsal root ganglion (DRG) neurons. About 35-40%, 5%, and 15-20% of DRG neurons were positive for trkA, trkB, and trkC mRNAs, respectively. Each member of the trk family was coexpressed with LANR. The trkB mRNA-expressing neurons essentially lacked trkA and trkC mRNAs, and most of trkA and trkC mRNAs-expressing neurons (85-90%) belonged to different subpopulations, suggesting that they are involved in different functions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cyclic AMP-Dependent Protein Kinases / biosynthesis
  • Cyclic AMP-Dependent Protein Kinases / genetics
  • Ganglia, Spinal / cytology
  • Ganglia, Spinal / enzymology*
  • Gene Expression
  • In Situ Hybridization
  • Male
  • Neurons / enzymology
  • Neurons / metabolism
  • Protein Kinase C / biosynthesis
  • Protein Kinase C / genetics
  • Protein-Tyrosine Kinases / biosynthesis*
  • Protein-Tyrosine Kinases / genetics
  • RNA, Messenger / metabolism*
  • Rats
  • Rats, Wistar

Substances

  • RNA, Messenger
  • Protein-Tyrosine Kinases
  • Cyclic AMP-Dependent Protein Kinases
  • Protein Kinase C