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Updated: Jun 5, 2025

High-throughput Screening for Chemical Modulators of Post-transcriptionally Regulated Genes
Published on: March 3, 2015
Exploring the therapeutic potential of modulating nonsense-mediated mRNA decay
Mary McMahon1, Lynne E Maquat2,3
1ReviR Therapeutics, Brisbane, California 94005, USA mary.mcmahon@revirtx.com lynne_maquat@urmc.rochester.edu.
Abstract:
Discovered more than four decades ago, nonsense-mediated mRNA decay (NMD) plays a fundamental role in the regulation of gene expression and is a major contributor to numerous diseases. With advanced technologies, several novel approaches aim to directly circumvent the effects of disease-causing frameshift and nonsense mutations. Additional therapeutics aim to globally dampen the NMD pathway in diseases associated with pathway hyperactivation, one example being Fragile X syndrome. In other cases, therapeutics have been designed to hijack or inhibit the cellular NMD machinery to either activate or obviate transcript-specific NMD by modulating pre-mRNA splicing. Here, we discuss promising approaches employed to regulate NMD for therapeutic purposes and highlight potential challenges in future clinical development. We are optimistic that the future of developing target-specific and global modulators of NMD (inhibitors as well as activators) is bright and will revolutionize the treatment of many genetic disorders, especially those with high unmet medical need.
Insights
Nonsense-mediated mRNA decay (NMD) regulates gene expression and causes disease. Novel therapeutics aim to modulate NMD for treating genetic disorders, offering hope for new treatments.
Area of Science:
- Molecular Biology
- Genetics
- Pharmacology
Background:
- Nonsense-mediated mRNA decay (NMD) is a crucial cellular surveillance pathway involved in gene expression regulation.
- NMD dysfunction is implicated in the pathogenesis of various genetic diseases.
- Current therapeutic strategies explore modulating NMD for disease treatment.
Purpose of the Study:
- To review emerging therapeutic approaches targeting the NMD pathway.
- To discuss the potential of NMD modulation for treating genetic disorders.
- To highlight challenges in the clinical development of NMD-targeting therapeutics.
Main Methods:
- Review of current literature on NMD and therapeutic strategies.
- Analysis of novel approaches for NMD modulation.
- Discussion of clinical development challenges.
Main Results:
- Several novel therapeutic strategies aim to directly counteract disease-causing mutations or globally dampen NMD activity.
- Therapeutics can hijack or inhibit NMD machinery to modulate gene expression.
- Pre-mRNA splicing modulation is explored to control transcript-specific NMD.
Conclusions:
- Targeted and global NMD modulators (inhibitors and activators) show promise for revolutionizing genetic disorder treatment.
- NMD-targeted therapies offer potential for diseases with high unmet medical needs.
- Further research and clinical development are needed to overcome challenges in NMD-based therapeutics.
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