Proteomic analysis of cerebrospinal fluid from patients with idiopathic temporal lobe epilepsy

Brain Res. 2009 Feb 19:1255:180-9. doi: 10.1016/j.brainres.2008.12.008. Epub 2008 Dec 11.

Abstract

Proteomic analysis of cerebrospinal fluid (CSF) from patients with temporal lobe epilepsy (TLE) and controls was carried out using two-dimensional gel electrophoresis followed by liquid chromatography electrospray ionization tandem mass spectrometry. Five protein spots showed significant differential expression (p<0.05): vitamin D-binding protein (DBP) was elevated in the CSF of TLE patients whereas cathepsin D, apolipoprotein J, Fam3c, and superoxide dismutase 1 (SOD1) were decreased in the CSF of TLE patients. Additional six protein spots presented only in the CSF of epilepsy patients were identified as tetranectin (TN), talin-2, apolipoprotein E, immunoglobulin lambda light chain (IGL@), immunoglobulin kappa variable light chain 1-5 (IGKV1-5), and procollagen C-endopeptidase enhancer 1 (PCOLCE). Expression of DBP, SOD1 and talin-2 was validated by western blot. Our results may provide better understanding of the pathophysiologic mechanisms underlying epileptogenesis and possible epilepsy biomarkers.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Biomarkers / cerebrospinal fluid
  • Blotting, Western
  • Cathepsin D / cerebrospinal fluid
  • Cerebrospinal Fluid / chemistry
  • Chromatography, Liquid
  • Clusterin / cerebrospinal fluid
  • Cytokines / cerebrospinal fluid
  • Electrophoresis, Gel, Two-Dimensional
  • Epilepsy, Temporal Lobe / cerebrospinal fluid*
  • Female
  • Humans
  • Lectins, C-Type / analysis
  • Male
  • Mass Spectrometry
  • Middle Aged
  • Neoplasm Proteins / cerebrospinal fluid
  • Proteomics / methods
  • Superoxide Dismutase / cerebrospinal fluid*
  • Superoxide Dismutase-1
  • Talin / cerebrospinal fluid*
  • Vitamin D-Binding Protein / cerebrospinal fluid*
  • Young Adult

Substances

  • Biomarkers
  • Clusterin
  • Cytokines
  • FAM3C protein, human
  • Lectins, C-Type
  • Neoplasm Proteins
  • SOD1 protein, human
  • TLN2 protein, human
  • Talin
  • Vitamin D-Binding Protein
  • tetranectin
  • Superoxide Dismutase
  • Superoxide Dismutase-1
  • Cathepsin D