Pten Regulates Neuronal Arborization and Social Interaction in Mice

Chang Hyuk Kwon, Bryan W. Luikart, Craig M. Powell, Jing Zhou, Sharon A. Matheny, Wei Zhang, Yanjiao Li, Suzanne J. Baker, Luis F. Parada

Research output: Contribution to journalArticle

577 Citations (Scopus)

Abstract

CNS deletion of Pten in the mouse has revealed its roles in controlling cell size and number, thus providing compelling etiology for macrocephaly and Lhermitte-Duclos disease. PTEN mutations in individuals with autism spectrum disorders (ASD) have also been reported, although a causal link between PTEN and ASD remains unclear. In the present study, we deleted Pten in limited differentiated neuronal populations in the cerebral cortex and hippocampus of mice. Resulting mutant mice showed abnormal social interaction and exaggerated responses to sensory stimuli. We observed macrocephaly and neuronal hypertrophy, including hypertrophic and ectopic dendrites and axonal tracts with increased synapses. This abnormal morphology was associated with activation of the Akt/mTor/S6k pathway and inactivation of Gsk3β. Thus, our data suggest that abnormal activation of the PI3K/AKT pathway in specific neuronal populations can underlie macrocephaly and behavioral abnormalities reminiscent of certain features of human ASD.

Original languageEnglish (US)
Pages (from-to)377-388
Number of pages12
JournalNeuron
Volume50
Issue number3
DOIs
StatePublished - May 4 2006

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Megalencephaly
Neuronal Plasticity
Interpersonal Relations
Multiple Hamartoma Syndrome
Dendrites
Phosphatidylinositol 3-Kinases
Cell Size
Cerebral Cortex
Synapses
Hypertrophy
Population
Hippocampus
Cell Count
Mutation
Autism Spectrum Disorder

Keywords

  • DEVBIO
  • HUMDISEASE
  • MOLNEURO

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Kwon, C. H., Luikart, B. W., Powell, C. M., Zhou, J., Matheny, S. A., Zhang, W., ... Parada, L. F. (2006). Pten Regulates Neuronal Arborization and Social Interaction in Mice. Neuron, 50(3), 377-388. https://doi.org/10.1016/j.neuron.2006.03.023

Pten Regulates Neuronal Arborization and Social Interaction in Mice. / Kwon, Chang Hyuk; Luikart, Bryan W.; Powell, Craig M.; Zhou, Jing; Matheny, Sharon A.; Zhang, Wei; Li, Yanjiao; Baker, Suzanne J.; Parada, Luis F.

In: Neuron, Vol. 50, No. 3, 04.05.2006, p. 377-388.

Research output: Contribution to journalArticle

Kwon, CH, Luikart, BW, Powell, CM, Zhou, J, Matheny, SA, Zhang, W, Li, Y, Baker, SJ & Parada, LF 2006, 'Pten Regulates Neuronal Arborization and Social Interaction in Mice', Neuron, vol. 50, no. 3, pp. 377-388. https://doi.org/10.1016/j.neuron.2006.03.023
Kwon CH, Luikart BW, Powell CM, Zhou J, Matheny SA, Zhang W et al. Pten Regulates Neuronal Arborization and Social Interaction in Mice. Neuron. 2006 May 4;50(3):377-388. https://doi.org/10.1016/j.neuron.2006.03.023
Kwon, Chang Hyuk ; Luikart, Bryan W. ; Powell, Craig M. ; Zhou, Jing ; Matheny, Sharon A. ; Zhang, Wei ; Li, Yanjiao ; Baker, Suzanne J. ; Parada, Luis F. / Pten Regulates Neuronal Arborization and Social Interaction in Mice. In: Neuron. 2006 ; Vol. 50, No. 3. pp. 377-388.
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