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Ion channels involved in stroke.

D L Small1

  • 1Institute or Biological Sciences, National Research Council of Canada, Building M-54, 1200 Montreal Road, Ottawa, Ontario, Canada K1A 0R6. dan.small@nrc.ca

Expert Opinion on Therapeutic Targets
|July 5, 2005
PubMed
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Ion channels regulate cellular excitability and are crucial for life. This review examines ion channel pharmacology and therapeutic potential, particularly for stroke, highlighting past disappointments and future hopes.

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Pharmacology

Background:

  • Ion channels are vital membrane proteins regulating ion flow and cellular excitability.
  • They are activated by voltage or ligand interactions and are present in all living cells.
  • Understanding their molecular biology, biophysics, and pharmacology is critical for therapeutic development.

Purpose of the Study:

  • To review the molecular biology, biophysics, and pharmacology of voltage- and ligand-gated ion channels.
  • To evaluate the efficacy and therapeutic potential of neuroprotective compounds targeting ion channels, especially for stroke.
  • To discuss the future development of stroke therapeutics targeting ion channels, learning from past clinical trial outcomes.

Main Methods:

  • Review of in vitro and in vivo literature on ion channels.

Related Experiment Videos

  • Focus on glutamate receptors, specifically N-methyl-D-aspartate (NMDA) receptors.
  • Analysis of clinical trial data for ion channel antagonists in stroke treatment.

    • Main Results:

    • Clinical trials for N-methyl-D-aspartate receptor antagonists in acute stroke have yielded disappointing results.
    • Past decade efforts in developing these agents for stroke were extensive but unsuccessful.
    • Emerging research focuses on sodium, calcium, and potassium channel antagonists for neuroprotection.

    Conclusions:

    • Despite past failures, ion channels remain promising therapeutic targets for stroke.
    • Future research should leverage insights from previous clinical trials to develop effective stroke therapeutics.
    • Continued investigation into novel ion channel modulators may lead to successful neuroprotective strategies.