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Oligodendrocyte NMDA receptors: a novel therapeutic target

Carlos Matute1

  • 1Departamento de Neurociencias, Universidad del País Vasco, 48940-Leioa, Spain. carlos.matute@ehu.es

Trends in Molecular Medicine
|June 6, 2006
PubMed

Insights

Excessive glutamate signaling causes excitotoxicity, leading to neuronal death. New research shows N-methyl-D-aspartate (NMDA) receptors in oligodendrocytes are key targets for treating white-matter damage.

Area of Science:

  • Neuroscience
  • Neurobiology
  • Cellular Biology

Background:

  • Glutamate signaling is crucial for neuronal function but excessive signaling leads to excitotoxicity and neuronal death.
  • Glutamate-induced excitotoxicity has been identified as a damaging factor for white-matter oligodendrocytes.
  • Previously, alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and kainate receptors were considered the primary mediators of oligodendrocyte excitotoxicity.

Purpose of the Study:

  • To investigate the role of N-methyl-D-aspartate (NMDA) receptors in oligodendrocyte excitotoxicity.
  • To explore novel therapeutic targets for white-matter diseases.

Main Methods:

  • Review of recent studies on glutamate receptor expression and function in oligodendrocytes.
  • Analysis of pathological conditions involving white-matter damage.

Main Results:

  • Recent studies demonstrate that oligodendrocytes express N-methyl-D-aspartate (NMDA) receptors.
  • These NMDA receptors are activated under pathological conditions, contributing to excitotoxicity.
  • This finding challenges the previous understanding that only AMPA and kainate receptors mediate oligodendrocyte excitotoxicity.

Conclusions:

  • N-methyl-D-aspartate (NMDA) receptors are implicated in oligodendrocyte excitotoxicity.
  • Targeting NMDA receptors presents a promising therapeutic strategy for treating white-matter damage in various neurological diseases.

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