Neuropeptide precursor VGF is genetically associated with social anhedonia and underrepresented in the brain of major mental illness: its downregulation by DISC1

Hum Mol Genet. 2014 Nov 15;23(22):5859-65. doi: 10.1093/hmg/ddu303. Epub 2014 Jun 16.

Abstract

In a large Scottish pedigree, disruption of the gene coding for DISC1 clearly segregates with major depression, schizophrenia and related mental conditions. Thus, study of DISC1 may provide a clue to understand the biology of major mental illness. A neuropeptide precursor VGF has potent antidepressant effects and has been reportedly associated with bipolar disorder. Here we show that DISC1 knockdown leads to a reduction of VGF, in neurons. VGF is also downregulated in the cortices from sporadic cases with major mental disease. A positive correlation of VGF single-nucleotide polymorphisms (SNPs) with social anhedonia was also observed. We now propose that VGF participates in a common pathophysiology of major mental disease.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anhedonia
  • Brain / metabolism*
  • Cohort Studies
  • Down-Regulation*
  • Humans
  • Mental Disorders / genetics*
  • Mental Disorders / metabolism
  • Mental Disorders / psychology
  • Nerve Growth Factors / genetics*
  • Nerve Growth Factors / metabolism
  • Nerve Tissue Proteins / genetics
  • Nerve Tissue Proteins / metabolism*
  • Neurons / metabolism
  • Pedigree
  • Polymorphism, Single Nucleotide

Substances

  • DISC1 protein, human
  • Nerve Growth Factors
  • Nerve Tissue Proteins
  • VGF protein, human