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<p>Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder distinguished by progressive motor neuron degeneration, with diverse clinical manifestations and complex genetic and environmental triggers. The variability in disease progression underscores the necessity for tailored diagnostic and therapeutic approaches. MicroRNAs (miRNAs), small non-coding RNAs that regulate gene expression, have emerged as promising biomarkers and therapeutic targets in ALS. Dysregulation of specific miRNAs has been linked to mechanisms of ALS, including neuromuscular dysfunction, neuroinflammation, and neuronal survival/apoptosis. The potential of miRNA-based therapies, such as mimics and inhibitors, offers a more integrated approach by modulating entire disease networks, rather than targeting isolated pathways. However, challenges persist, particularly in delivering these therapies efficiently across the blood–brain barrier and minimizing off-target effects. Current delivery strategies involving nanoparticles, viral vectors, and exosome-based approaches require optimization for clinical use. This review synthesizes the latest research on miRNA-mediated mechanisms in ALS, evaluating their diagnostic, prognostic, and therapeutic potential, while highlighting the current limitations in clinical validation. It underscores the importance of standardized methodologies, multi-omics integration, and rigorous validation to facilitate the clinical translation of miRNA-based strategies. Standardized protocols and multicenter validation in large cohorts are essential to confirm the diagnostic accuracy of miRNAs, paving the way for their clinical application in ALS precision medicine.</p>

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miRNAs in Amyotrophic Lateral Sclerosis: Tiny Molecules, Tremendous Impact

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • Sherif S. Abdel Mageed,
  • Ghadir A. Sayed,
  • Ahmed Mahdy,
  • Walaa A. El-Dakroury,
  • Ahmed O. Abdulkader,
  • Hebatallah Ahmed Mohamed Moustafa,
  • Reda M. Mansour,
  • Osama A. Mohammed,
  • Mohammed S. Elballal,
  • Ahmed E. Elesawy,
  • Ahmed S. Doghish

摘要

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder distinguished by progressive motor neuron degeneration, with diverse clinical manifestations and complex genetic and environmental triggers. The variability in disease progression underscores the necessity for tailored diagnostic and therapeutic approaches. MicroRNAs (miRNAs), small non-coding RNAs that regulate gene expression, have emerged as promising biomarkers and therapeutic targets in ALS. Dysregulation of specific miRNAs has been linked to mechanisms of ALS, including neuromuscular dysfunction, neuroinflammation, and neuronal survival/apoptosis. The potential of miRNA-based therapies, such as mimics and inhibitors, offers a more integrated approach by modulating entire disease networks, rather than targeting isolated pathways. However, challenges persist, particularly in delivering these therapies efficiently across the blood–brain barrier and minimizing off-target effects. Current delivery strategies involving nanoparticles, viral vectors, and exosome-based approaches require optimization for clinical use. This review synthesizes the latest research on miRNA-mediated mechanisms in ALS, evaluating their diagnostic, prognostic, and therapeutic potential, while highlighting the current limitations in clinical validation. It underscores the importance of standardized methodologies, multi-omics integration, and rigorous validation to facilitate the clinical translation of miRNA-based strategies. Standardized protocols and multicenter validation in large cohorts are essential to confirm the diagnostic accuracy of miRNAs, paving the way for their clinical application in ALS precision medicine.