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Tourette Syndrome Risk Genes Regulate Mitochondrial Dynamics, Structure, and Function.

Raymond A Clarke1,2, Teri M Furlong3, Valsamma Eapen1,2,4

  • 1School of Psychiatry, University of New South Wales, Sydney, NSW, Australia.

Frontiers in Psychiatry
|March 29, 2021
PubMed
Summary
This summary is machine-generated.

Gilles de la Tourette syndrome (GTS) involves genetic mutations impacting mitochondrial pathways crucial for neuronal function. This study reveals a novel link between mitochondrial dysfunction and GTS pathogenesis, affecting neurotransmission.

Keywords:
Tourette syndrome causeTourette syndrome etiologyTourette syndrome genesmitochondrial fissionmitochondrial supply

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Area of Science:

  • Neuroscience
  • Genetics
  • Cell Biology

Background:

  • Gilles de la Tourette syndrome (GTS) is a neurodevelopmental disorder affecting 1% of children and adolescents.
  • While inheritance is high, the molecular basis of GTS remains largely unknown, with the neurexin trans-synaptic connexus (NTSC) pathway being a known factor.

Purpose of the Study:

  • To investigate the role of mitochondrial pathways in the pathogenesis of GTS.
  • To integrate known GTS mutations into mitochondrial dynamics, structure, and function (MDSF) pathways.

Main Methods:

  • Analysis of GTS-associated gene mutations.
  • Integration of these mutations into established mitochondrial pathways.
  • Review of existing literature on NTSC and mitochondrial function in GTS.

Main Results:

  • Many GTS mutations occur in genes critical for mitochondrial dynamics, transport, fusion, fission, and metabolic optimization.
  • These genes play complementary and consecutive roles within MDSF pathways.
  • This study establishes an integrated mitochondrial pathway contributing to GTS pathogenesis.

Conclusions:

  • This research presents the first integrated mitochondrial pathway model for GTS.
  • Findings support a deficit in mitochondrial supply, impacting neurotransmission in GTS.
  • This provides a novel molecular framework for understanding GTS.