Social approach in genetically engineered mouse lines relevant to autism

S. S. Moy, J. J. Nadler, N. B. Young, R. J. Nonneman, A. W. Grossman, D. L. Murphy, A. J. D'Ercole, Jacqueline Crawley, T. R. Magnuson, J. M. Lauder

Research output: Contribution to journalArticle

162 Citations (Scopus)

Abstract

Profound impairment in social interaction is a core symptom of autism, a severe neurodevelopmental disorder. Deficits can include a lack of interest in social contact and low levels of approach and proximity to other children. In this study, a three-chambered choice task was used to evaluate sociability and social novelty preference in five lines of mice with mutations in genes implicated in autism spectrum disorders. Fmr1 tm1Cgr/Y (Fmr1 -/y) mice represent a model for fragile X, a mental retardation syndrome that is partially comorbid with autism. We tested Fmr1 -/y mice on two genetic backgrounds, C57BL/6J and FVB/N-129/OlaHsd (FVB/129). Targeted disruption of Fmr1 resulted in low sociability on one measure, but only when the mutation was expressed on FVB/129. Autism has been associated with altered serotonin levels and polymorphisms in SLC6A4 (SERT), the serotonin transporter gene. Male mice with targeted disruption of Slc6a4 displayed significantly less sociability than wild-type controls. Mice with conditional overexpression of Igf-1 (insulin-like growth factor-1) offered a model for brain overgrowth associated with autism. Igf-1 transgenic mice engaged in levels of social approach similar to wild-type controls. Targeted disruption in other genes of interest, En2 (engrailed-2) and Dhcr7, was carried on genetic backgrounds that showed low levels of exploration in the choice task, precluding meaningful interpretations of social behavior scores. Overall, results show that loss of Fmr1 or Slc6a4 gene function can lead to deficits in sociability. Findings from the fragile X model suggest that the FVB/129 background confers enhanced susceptibility to consequences of Fmr1 mutation on social approach.

Original languageEnglish (US)
Pages (from-to)129-142
Number of pages14
JournalGenes, Brain and Behavior
Volume8
Issue number2
DOIs
StatePublished - Mar 2009
Externally publishedYes

Fingerprint

Autistic Disorder
Somatomedins
Mutation
Genes
Fragile X Syndrome
Serotonin Plasma Membrane Transport Proteins
Social Behavior
Interpersonal Relations
Transgenic Mice
Serotonin
Brain
Genetic Background

Keywords

  • Autism spectrum disorders
  • Endophenotype
  • Engrailed
  • Fmr1
  • Fragile X
  • Sert
  • Slc6a4
  • Sociability

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Genetics
  • Neurology

Cite this

Moy, S. S., Nadler, J. J., Young, N. B., Nonneman, R. J., Grossman, A. W., Murphy, D. L., ... Lauder, J. M. (2009). Social approach in genetically engineered mouse lines relevant to autism. Genes, Brain and Behavior, 8(2), 129-142. https://doi.org/10.1111/j.1601-183X.2008.00452.x

Social approach in genetically engineered mouse lines relevant to autism. / Moy, S. S.; Nadler, J. J.; Young, N. B.; Nonneman, R. J.; Grossman, A. W.; Murphy, D. L.; D'Ercole, A. J.; Crawley, Jacqueline; Magnuson, T. R.; Lauder, J. M.

In: Genes, Brain and Behavior, Vol. 8, No. 2, 03.2009, p. 129-142.

Research output: Contribution to journalArticle

Moy, SS, Nadler, JJ, Young, NB, Nonneman, RJ, Grossman, AW, Murphy, DL, D'Ercole, AJ, Crawley, J, Magnuson, TR & Lauder, JM 2009, 'Social approach in genetically engineered mouse lines relevant to autism', Genes, Brain and Behavior, vol. 8, no. 2, pp. 129-142. https://doi.org/10.1111/j.1601-183X.2008.00452.x
Moy SS, Nadler JJ, Young NB, Nonneman RJ, Grossman AW, Murphy DL et al. Social approach in genetically engineered mouse lines relevant to autism. Genes, Brain and Behavior. 2009 Mar;8(2):129-142. https://doi.org/10.1111/j.1601-183X.2008.00452.x
Moy, S. S. ; Nadler, J. J. ; Young, N. B. ; Nonneman, R. J. ; Grossman, A. W. ; Murphy, D. L. ; D'Ercole, A. J. ; Crawley, Jacqueline ; Magnuson, T. R. ; Lauder, J. M. / Social approach in genetically engineered mouse lines relevant to autism. In: Genes, Brain and Behavior. 2009 ; Vol. 8, No. 2. pp. 129-142.
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