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The Promise and Challenges of Developing miRNA-Based Therapeutics for Parkinson's Disease
Simoneide S Titze-de-Almeida1, Cristina Soto-Sánchez2, Eduardo Fernandez2,3
1Technology for Gene Therapy Laboratory, Central Institute of Sciences, FAV, University of Brasilia, Brasília 70910-900, Brazil.
Abstract:
MicroRNAs (miRNAs) are small double-stranded RNAs that exert a fine-tuning sequence-specific regulation of cell transcriptome. While one unique miRNA regulates hundreds of mRNAs, each mRNA molecule is commonly regulated by various miRNAs that bind to complementary sequences at 3'-untranslated regions for triggering the mechanism of RNA interference. Unfortunately, dysregulated miRNAs play critical roles in many disorders, including Parkinson's disease (PD), the second most prevalent neurodegenerative disease in the world. Treatment of this slowly, progressive, and yet incurable pathology challenges neurologists. In addition to L-DOPA that restores dopaminergic transmission and ameliorate motor signs (i.e., bradykinesia, rigidity, tremors), patients commonly receive medication for mood disorders and autonomic dysfunctions. However, the effectiveness of L-DOPA declines over time, and the L-DOPA-induced dyskinesias commonly appear and become highly disabling. The discovery of more effective therapies capable of slowing disease progression -a neuroprotective agent-remains a critical need in PD. The present review focus on miRNAs as promising drug targets for PD, examining their role in underlying mechanisms of the disease, the strategies for controlling aberrant expressions, and, finally, the current technologies for translating these small molecules from bench to clinics.
Insights
MicroRNAs (miRNAs) are key regulators of gene expression implicated in Parkinson's disease (PD). This review explores miRNAs as potential therapeutic targets for PD, discussing their role in disease mechanisms and treatment strategies.
Area of Science:
- Molecular Biology
- Neuroscience
- Genetics
Background:
- MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression post-transcriptionally.
- Dysregulation of miRNAs is implicated in the pathogenesis of various diseases, including Parkinson's disease (PD).
- Current PD treatments like L-DOPA have limitations, highlighting the need for neuroprotective therapies.
Purpose of the Study:
- To review the role of miRNAs in the underlying mechanisms of Parkinson's disease.
- To examine strategies for modulating aberrant miRNA expression in PD.
- To discuss the translational potential of miRNAs as therapeutic targets for PD.
Main Methods:
- Literature review of scientific articles on miRNAs and Parkinson's disease.
- Analysis of miRNA involvement in PD pathogenesis.
- Overview of miRNA-based therapeutic strategies and clinical translation.
Main Results:
- miRNAs play critical roles in cellular processes relevant to PD.
- Aberrant miRNA expression patterns are observed in PD patients.
- miRNAs offer potential as biomarkers and therapeutic targets for PD.
Conclusions:
- miRNAs represent promising drug targets for the development of novel neuroprotective therapies for Parkinson's disease.
- Targeting miRNAs could offer a new approach to slow PD progression and improve patient outcomes.
- Further research and technological advancements are crucial for translating miRNA-based therapies from bench to clinic.
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