Neurochemical Research

, Volume 23, Issue 6, pp 821–829

Expression of mRNAs for Neurotrophins (NGF, BDNF, and NT-3) and their Receptors (p75NGFR, Trk, TrkB, and TrkC) in Human Peripheral Neuropathies

  • Gen Sobue
  • Masahiko Yamamoto
  • Manabu Doyu
  • Mei Li
  • Takeshi Yasuda
  • Terunori Mitsuma
Article

DOI: 10.1023/A:1022434209787

Cite this article as:
Sobue, G., Yamamoto, M., Doyu, M. et al. Neurochem Res (1998) 23: 821. doi:10.1023/A:1022434209787

Abstract

The steady-state mRNA levels of NGF, BDNF and NT-3, and the mRNA levels of their receptors p75NGFR, trk, trk,B and trkC were examined in various human peripheral neuropathies, to determine the correlation with myelinated fiber pathology and T cell and macrophage invasions in the diseased nerves. Steady state levels of p75NGFR mRNAs were significantly elevated in nerves with axonal pathology. In contrast, steady state levels of trkB and trkC mRNA levels were diminished, trk mRNA was not detected in the human nerves. The NGF, BDNF, and NT-3 mRNA levels were elevated in the diseased nerves. The increase in BDNF and NT-3 mRNA levels were proportional to the extent of invasion of the nerves by T cells and macrophages, but did not directly correlate with axonal nor demyelinating pathology, thus suggesting that inflammatory cell invasions are involved in the regulation of BDNF and NT-3 mRNA expressions. These neurotrophin and their receptor gene expressions in the diseased human nerves would be regulated by an underlying pathology-related process, and could play a role in peripheral nerve repair.

Neurotrophinstrksperipheral neuropathiesaxonopathycell infiltration

Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

  • Gen Sobue
    • 1
  • Masahiko Yamamoto
    • 1
  • Manabu Doyu
    • 1
  • Mei Li
    • 1
  • Takeshi Yasuda
    • 1
  • Terunori Mitsuma
    • 2
  1. 1.Department of NeurologyNagoya University School of MedicineNagoyaJapan
  2. 2.Division of Neurology, Fourth Department of Internal MedicineAichi Medical UniversityAichiJapan