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Recording Mouse Ultrasonic Vocalizations to Evaluate Social Communication
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SHANK1 and autism spectrum disorders.

XiaoHong Gong1, HongYan Wang2

  • 1MOE Key Laboratory of Contemporary Anthropology and State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433, China. gongxh@fudan.edu.cn.

Science China. Life Sciences
|September 4, 2015
PubMed
Summary

Genetic factors in autism spectrum disorder (ASD) are being uncovered, particularly mutations in the SHANK1 gene. This gene is crucial for synaptic development, suggesting its role in neurodevelopmental abnormalities seen in ASD.

Keywords:
SHANK1autism spectrum disordersgeneticsmouse modelsynapse

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Area of Science:

  • Neuroscience
  • Genetics
  • Developmental Biology

Background:

  • Autism spectrum disorder (ASD) is a heterogeneous neurodevelopmental disorder with high heritability.
  • Genetic factors, especially those affecting neurogenesis and synaptic function, are implicated in ASD.
  • The Neurexin-Neuroligin-Shank (NRXN-NLGN-SHANK) pathway is vital for synapse formation, maturation, and maintenance.

Purpose of the Study:

  • To review the function of SHANK1 protein in synaptic plasticity.
  • To examine Shank1 mouse models for insights into ASD.
  • To explore the molecular genetics of SHANK1 in relation to human ASD.

Main Methods:

  • Literature review of studies on SHANK1.
  • Analysis of genetic data from individuals with ASD.
  • Examination of findings from Shank1 knockout or mutant mouse models.

Main Results:

  • SHANK1 mutations and deletions are identified in individuals with ASD.
  • SHANK1 plays a critical role in the postsynaptic density (PSD) of excitatory synapses.
  • Shank1 mouse models exhibit phenotypes relevant to ASD.

Conclusions:

  • SHANK1 is a significant candidate gene for ASD.
  • Dysfunction in the SHANK1 gene may contribute to the neurodevelopmental abnormalities observed in ASD.
  • Further research into SHANK1 is warranted to understand its role in ASD pathogenesis.