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Sodium channelopathies in neurodevelopmental disorders.

Miriam H Meisler1,2, Sophie F Hill3,4, Wenxi Yu3

  • 1Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA. meislerm@umich.edu.

Nature Reviews. Neuroscience
|February 3, 2021
PubMed
Summary
This summary is machine-generated.

Mutations in voltage-gated sodium channel alpha-subunit genes (SCN1A, SCN2A, SCN8A) cause significant neurological disease. Research advances offer new therapeutic strategies for these channelopathies.

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Area of Science:

  • Neuroscience
  • Genetics
  • Molecular Biology

Background:

  • Voltage-gated sodium channels are crucial for neuronal function.
  • Mutations in SCN1A, SCN2A, and SCN8A genes are linked to severe neurological disorders.
  • Understanding these channels is key to treating related diseases.

Purpose of the Study:

  • To review sodium channel function relevant to patient variant characterization.
  • To summarize in vivo roles of sodium channels using mouse models.
  • To provide an overview of neurological disorders caused by gene mutations and emerging therapies.

Main Methods:

  • Review of basic sodium channel function.
  • Analysis of global and conditional mouse mutants.
  • Compilation of data on human gene mutations and patient variant effects.
  • Literature review of therapeutic interventions.

Main Results:

  • Identified SCN1A, SCN2A, and SCN8A gene mutations as major causes of neurological disease.
  • Characterized in vivo roles of sodium channels through mouse studies.
  • Detailed the impact of patient mutations on channel function.
  • Highlighted emerging therapeutic approaches for sodium channelopathies.

Conclusions:

  • Advances in identifying and characterizing patient variants are crucial for developing novel therapies.
  • Mouse models provide essential insights into the in vivo functions of sodium channels.
  • Targeted therapies for channelopathies are emerging based on mechanistic understanding.