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MicroRNA Metabolism and Dysregulation in Amyotrophic Lateral Sclerosis

Paola Rinchetti1, Mafalda Rizzuti1, Irene Faravelli1

  • 1Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), Neurology Unit, IRCCS Fondazione Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Via Francesco Sforza 35, 20122, Milan, Italy.

Molecular Neurobiology
|April 20, 2017
PubMed

Insights

MicroRNAs (miRNAs) are small RNAs regulating gene expression. Their dysregulation in the central nervous system is linked to neurodegenerative diseases like ALS, suggesting potential as biomarkers and therapeutic targets.

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are key regulators of gene expression at the post-transcriptional level.
  • Dysregulation of miRNA pathways in the central nervous system (CNS) is implicated in neuronal injury and neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS).
  • ALS pathogenesis involves alterations in RNA metabolism, particularly miRNA processing, in both familial and sporadic forms.

Purpose of the Study:

  • To review current knowledge on miRNA metabolism, biological functions, and their role in ALS pathogenesis.
  • To analyze specific pathways involving miRNAs in ALS.
  • To explore the potential of miRNAs as biomarkers and therapeutic targets for ALS.

Main Methods:

  • Literature review and synthesis of existing research on miRNA biology and ALS.
  • In-depth analysis of miRNA processing and regulatory pathways relevant to ALS.
  • Discussion of potential applications of miRNAs in ALS diagnostics and therapeutics.

Main Results:

  • miRNA dysregulation is a significant factor in CNS injury and neurodegeneration, specifically in ALS.
  • Changes in RNA metabolism, including miRNA processing, are observed in ALS, linked to genes like TDP-43 and FUS.
  • Understanding miRNA involvement offers insights into ALS etiopathogenesis.

Conclusions:

  • miRNAs play a crucial role in the pathogenesis of amyotrophic lateral sclerosis.
  • Further investigation into miRNA metabolism and function in ALS can identify novel biomarkers.
  • miRNAs represent promising targets for future therapeutic strategies in ALS treatment.
Keywords:
ALSAmyotrophic lateral sclerosisCNSCentral nervous systemmiRNAmicroRNA

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