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The enemy at the gates. Ca2+ entry through TRPM7 channels and anoxic neuronal death

Pierluigi Nicotera1, Daniele Bano

  • 1MRC Toxicology Unit, University of Leicester, Lancaster Road, LE1 9HN Leicester, UK.

Cell
|December 31, 2003
PubMed

Insights

Gating of the TRPM7 channel, a calcium-permeable channel, causes calcium overload and neuronal death during brain ischemia. This study reveals a new mechanism for excitotoxic neuronal death in anoxic neurons.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Physiology

Background:

  • Brain ischemia leads to excitotoxic neuronal death.
  • Postsynaptic glutamate receptor gating is a known cause of calcium overload.

Discussion:

  • Aarts and colleagues identified TRPM7 channel gating as a novel mechanism for neuronal demise.
  • TRPM7 is a calcium-permeable nonselective cation channel.

Key Insights:

  • TRPM7 channel gating mediates calcium overload in anoxic neurons.
  • This pathway contributes to excitotoxic neuronal death.

Outlook:

  • Targeting TRPM7 may offer new therapeutic strategies for brain ischemia.
  • Further research into TRPM7 function in neuronal health and disease is warranted.

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