Conserved subcortical and divergent cortical expression of proteins encoded by orthologs of the autism risk gene MET

Matthew C. Judson, David G Amaral, Pat Levitt

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Met receptor tyrosine kinase signaling regulates the growth and development of axons and may contribute to the wiring of cortical and limbic circuits in the rodent forebrain. Whether the orthologous MET receptor functions similarly in the developing primate forebrain is not known but is of considerable interest considering the association of variant MET alleles with social and communication phenotypes in autism. To begin addressing this question, we compared Met/MET protein expression in the developing mouse and rhesus macaque forebrain. There was a strong temporal conservation of expression during the time of rapid axon development and the onset of robust synapse formation. Expression patterns of Met/MET in limbic-related structures were almost identical between species. In marked contrast, there was highly divergent expression in the neocortex. In mouse, Met was broadly distributed throughout neocortex. In the macaque, robust MET expression was largely restricted to the posterior cingulate, inferior temporal, posterior parietal, and visual cortices, including face processing regions. The pattern is consistent with the importance of vision in the social repertoire of the primate. Collectively, these data suggest a conserved developmental function of the MET receptor in wiring together limbic and neocortical circuits that facilitate species-appropriate responses, including social behavior.

Original languageEnglish (US)
Pages (from-to)1613-1626
Number of pages14
JournalCerebral Cortex
Volume21
Issue number7
DOIs
StatePublished - Jul 2011

Fingerprint

Autistic Disorder
Prosencephalon
Neocortex
Primates
Axons
Genes
Parietal Lobe
Proteins
Social Behavior
Gyrus Cinguli
Receptor Protein-Tyrosine Kinases
Macaca
Visual Cortex
Macaca mulatta
Growth and Development
Synapses
Rodentia
Alleles
Communication
Phenotype

Keywords

  • circuitry
  • HGF
  • neocortex
  • social
  • vision

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Cellular and Molecular Neuroscience

Cite this

Conserved subcortical and divergent cortical expression of proteins encoded by orthologs of the autism risk gene MET. / Judson, Matthew C.; Amaral, David G; Levitt, Pat.

In: Cerebral Cortex, Vol. 21, No. 7, 07.2011, p. 1613-1626.

Research output: Contribution to journalArticle

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