Autism-associated promoter variant in MET impacts functional and structural brain networks

Neuron. 2012 Sep 6;75(5):904-15. doi: 10.1016/j.neuron.2012.07.010.


As genes that confer increased risk for autism spectrum disorder (ASD) are identified, a crucial next step is to determine how these risk factors impact brain structure and function and contribute to disorder heterogeneity. With three converging lines of evidence, we show that a common, functional ASD risk variant in the Met Receptor Tyrosine Kinase (MET) gene is a potent modulator of key social brain circuitry in children and adolescents with and without ASD. MET risk genotype predicted atypical fMRI activation and deactivation patterns to social stimuli (i.e., emotional faces), as well as reduced functional and structural connectivity in temporo-parietal regions known to have high MET expression, particularly within the default mode network. Notably, these effects were more pronounced in individuals with ASD. These findings highlight how genetic stratification may reduce heterogeneity and help elucidate the biological basis of complex neuropsychiatric disorders such as ASD.

Publication types

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

MeSH terms

  • Adolescent
  • Brain / abnormalities
  • Brain / metabolism
  • Brain / physiopathology*
  • Child
  • Child Development Disorders, Pervasive / epidemiology
  • Child Development Disorders, Pervasive / genetics*
  • Child Development Disorders, Pervasive / physiopathology*
  • Female
  • Humans
  • Male
  • Nerve Net / abnormalities
  • Nerve Net / metabolism
  • Nerve Net / physiopathology*
  • Promoter Regions, Genetic / genetics*
  • Proto-Oncogene Proteins c-met / genetics*
  • Risk Factors


  • MET protein, human
  • Proto-Oncogene Proteins c-met