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Systemic Delivery of MicroRNA Using Recombinant Adeno-associated Virus Serotype 9 to Treat Neuromuscular Diseases in Rodents
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Systemic Delivery of MicroRNA Using Recombinant Adeno-associated Virus Serotype 9 to Treat Neuromuscular Diseases in Rodents

Published on: August 10, 2018

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[MicroRNA in neurodegenerative disorders]

Gen Sobue1

  • 1Department of Neurology, Nagoya University Graduate School of Medicine.

Rinsho Shinkeigaku = Clinical Neurology
|December 3, 2013
PubMed

Insights

MicroRNAs (miRNAs) can treat neurodegenerative diseases like spinal and bulbar muscular atrophy (SBMA). This study shows miR-196a therapy reduces mutant androgen receptor (AR) in SBMA mice, mitigating motor neuron loss.

Area of Science:

  • Molecular Biology
  • Neuroscience
  • Genetics

Context:

  • MicroRNAs (miRNAs) regulate gene expression by targeting mRNA, influencing various cellular processes.
  • Neurodegenerative diseases, including spinal and bulbar muscular atrophy (SBMA), are linked to altered gene expression and protein aggregation.
  • SBMA is caused by polyglutamine expansion in the androgen receptor (AR), leading to motor neuron degeneration.

Purpose:

  • To investigate the role of miR-196a in the pathogenesis of SBMA.
  • To explore the therapeutic potential of miR-196a delivery for SBMA treatment.

Summary:

  • This study found elevated miR-196a levels in an SBMA mouse model.
  • miR-196a was shown to degrade mutant AR mRNA by targeting CUG triplet repeat RNA binding protein 2, which stabilizes mutant AR.
  • Adeno-associated virus-mediated delivery of miR-196a reduced mutant AR expression and mitigated motor neuron degeneration in SBMA mice.

Impact:

  • MicroRNA-based therapies offer a novel strategy for treating neurodegenerative diseases.
  • This research highlights miR-196a as a potential therapeutic agent for SBMA.
  • The findings contribute to understanding miRNA-mediated gene regulation in neurodegeneration.

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