Emerging role of microRNAs in the pathogenesis of amyotrophic lateral sclerosis

Area of Science:

• Neuroscience
• Genetics
• Molecular Biology

Background:

• Amyotrophic lateral sclerosis (ALS) is the most common adult motor neuron disease (MND), characterized by upper and lower motor neuron degeneration.
• ALS is categorized into familial and sporadic forms, with known genetic mutations (SOD1, C9ORF72, FUS, TARDBP) identified in familial cases.
• Heritable genetic risk factors for sporadic ALS remain incompletely understood despite extensive research.

Purpose of the Study:

• To review the role of microRNAs (miRNAs) in the pathogenesis of Amyotrophic Lateral Sclerosis (ALS).
• To explore the potential of miRNAs as biomarkers for sporadic ALS.
• To synthesize current understanding of miRNA dysregulation in ALS development.

Main Methods:

• Literature review of studies investigating microRNAs in Amyotrophic Lateral Sclerosis.
• Analysis of research on genetic associations and biomarkers in ALS.
• Synthesis of findings related to miRNA expression in ALS patient samples and tissues.

Main Results:

• Several microRNAs (miRNAs) have been observed to be dysregulated in both serum samples and brain tissues of ALS patients.
• Specific miRNAs have been proposed as potential diagnostic or prognostic biomarkers for sporadic ALS.
• The review highlights the emerging significance of miRNAs in understanding ALS pathophysiology.

Conclusions:

• MicroRNAs play a significant role in the development and progression of Amyotrophic Lateral Sclerosis.
• Dysregulated miRNAs present a promising avenue for the identification of biomarkers for sporadic ALS.
• Further research into miRNA mechanisms is crucial for advancing ALS diagnostics and therapeutics.