Synthesis, chaperoning, and metabolism of proteins are regulated by NT-3/TrkC signaling in the medulloblastoma cell line DAOY

J Proteome Res. 2008 May;7(5):1932-44. doi: 10.1021/pr700724a. Epub 2008 Mar 13.

Abstract

The human medulloblastoma cell line DAOY was transfected with Tropomyosin receptor kinase (TrkC), a marker for good prognostic outcome. Following TrkC-activation by its ligand neurotrophin-3, protein extracts from DAOY cells were run on 2DE with subsequent MALDI-TOF-TOF analysis and quantification in order to detect downstream effectors. Protein levels of translational, splicing, processing, chaperone, protein handling, and metabolism machineries were shown to depend on neurotrophin-3-induced TrkC activation probably representing pharmacological targets.

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Biomarkers, Tumor / metabolism
  • Cell Line, Tumor
  • Child
  • Enzyme Activation
  • Humans
  • Medulloblastoma / chemistry*
  • Medulloblastoma / diagnosis
  • Medulloblastoma / metabolism*
  • Molecular Sequence Data
  • Neoplasm Proteins / chemistry*
  • Neoplasm Proteins / genetics
  • Neoplasm Proteins / metabolism*
  • Neurotrophin 3 / metabolism*
  • Prognosis
  • Receptor, trkC / metabolism*
  • Signal Transduction / physiology*
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

Substances

  • Biomarkers, Tumor
  • Neoplasm Proteins
  • Neurotrophin 3
  • Receptor, trkC