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ASTN2 in ASD and neurodevelopmental disorders.

Eve-Ellen Govek1, Court Hull2, Mary E Hatten1

  • 1Laboratory of Developmental Neurobiology, The Rockefeller University, New York, NY, United States.

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|April 23, 2026
PubMed
Summary
This summary is machine-generated.

Astrotactin 2 (ASTN2) is crucial for cerebellar development and linked to autism spectrum disorder (ASD). Research shows ASTN2 mutations impact brain function, potentially offering new therapeutic targets for neurodevelopmental disorders.

Keywords:
Astrotactin 2 (ASTN2)Autism spectrum disorder (ASD)BehaviorCerebellumHuman iPSC-induced Purkinje cells (PCs)Neurodevelopmental disorders (NDDs)PhysiologyProteomicsPurkinje cellsSynaptic functions

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Area of Science:

  • Neuroscience
  • Genetics
  • Developmental Biology

Background:

  • Astrotactin 2 (ASTN2) is a gene implicated in cerebellar development.
  • The cerebellum's role extends beyond motor control to social cognition and emotional processing.
  • Mutations in ASTN2 are associated with autism spectrum disorder (ASD) and other psychiatric conditions.

Purpose of the Study:

  • To review the role of ASTN2 in cerebellar development.
  • To explore the implications of ASTN2 in neurodevelopmental disorders, particularly ASD.
  • To highlight ASTN2 as a potential therapeutic target.

Main Methods:

  • Review of existing studies on ASTN2 function.
  • Analysis of ASTN2 mutations (deletions, copy number variations) and their link to ASD.
  • Investigation using mouse models with perturbed ASTN2 expression.
  • Utilizing human induced pluripotent stem cells to study ASTN2 in human neuronal development.

Main Results:

  • ASTN2 plays a critical role in neuronal migration, synaptic modulation, protein trafficking, and behavior.
  • Perturbed ASTN2 expression in mouse models leads to ASD-like behaviors.
  • ASTN2 influences the structure and function of cerebellar Purkinje cells, affecting spine density and synaptic transmission.

Conclusions:

  • ASTN2 is a key gene in cerebellar development with significant implications for neurodevelopmental disorders like ASD.
  • Further research using human stem cells is crucial to understand ASTN2's function in human neurodevelopment.
  • ASTN2 represents a promising target for future therapeutic interventions for ASD and related disorders.