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miR-146a is a pleiotropic regulator of motor neuron degeneration - PubMed

3 hours ago
  • #neuroinflammation
  • #ALS
  • #microRNA
  • miR-146a is a pleiotropic regulator of motor neuron degeneration in ALS.
  • miR-146a is downregulated in diseased motor neurons but upregulated in bulk tissue.
  • Genetic deletion of miR-146a extended survival in SOD1G93A mice, with heterozygous animals showing the most benefit.
  • This deletion reduced spinal cord gliosis but not motor neuron loss.
  • A subset of miR-146a knockout animals developed spontaneous paralysis and motor neuron loss with age.
  • The findings highlight the complex role of neuroinflammation in ALS pathogenesis.