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Published on: April 11, 2018
MicroRNA and chronic pain: From mechanisms to therapeutic potential
María José López-González1, Marc Landry1, Alexandre Favereaux1
1Interdisciplinary Institute for Neuroscience, UMR 5297, University of Bordeaux, Bordeaux, France; Interdisciplinary Institute for Neuroscience, UMR 5297, Centre National de la Recherche Scientifique, Bordeaux, France.
Abstract:
Chronic pain is a major public health issue with an incidence of 20-25% worldwide that can take different forms like neuropathic, cancer-related or inflammatory pain. Chronic pain often limits patients in their daily activities leading to despair. Thus, the goal of treatments is to relieve pain sufficiently to enable patients to go back to a normal life. Unfortunately, few patients with chronic pain obtain complete relief from the analgesics that are currently available. It is thus of prime importance to get a better understanding of chronic pain mechanisms to design new therapeutic strategies and pain-killers. In this sense, the study of microRNA (miRNAs) in chronic pain conditions could lead to a breakthrough in pain management. miRNAs have emerged as master regulators of gene expression in the nervous system where they contribute to neuronal network plasticity. The involvement of miRNAs in the maladaptive plasticity mechanisms of chronic pain is now well documented. Here, we review studies conducted in different animal models and in patients that screened chronic pain-related miRNAs and their targets. Clinical studies suggest that miRNAs expression could reflect the high variability among pain patients that could help to categorize patients and finally lead to personalized therapies. We also point out the different strategies investigated to design miRNA-based analgesics. Finally, we highlight the current miRNA-based clinical trials to hypothesize their potential as therapeutic tool for chronic pain.
Insights
MicroRNAs (miRNAs) are key regulators of gene expression and neuronal plasticity, offering a novel approach to chronic pain management. Research into miRNA-based analgesics and personalized therapies shows promise for improving patient outcomes.
Area of Science:
- Neuroscience
- Genetics
- Pharmacology
Background:
- Chronic pain affects 20-25% of the global population, significantly impacting daily life and necessitating improved treatments.
- Current analgesics offer limited relief for many chronic pain patients, highlighting the need for novel therapeutic strategies.
- MicroRNAs (miRNAs) are emerging as crucial regulators of gene expression in the nervous system, implicated in neuronal plasticity.
Purpose of the Study:
- To review the role of miRNAs in chronic pain mechanisms.
- To explore the potential of miRNAs as biomarkers for patient categorization and personalized pain therapy.
- To examine strategies for developing miRNA-based analgesics and their clinical applications.
Main Methods:
- Systematic review of studies on chronic pain-related miRNAs in animal models and human patients.
- Analysis of miRNA expression patterns and their correlation with pain variability.
- Investigation of current strategies for miRNA-based therapeutic development and clinical trials.
Main Results:
- miRNA involvement in maladaptive plasticity mechanisms underlying chronic pain is well-documented.
- Clinical studies indicate that miRNA expression profiles may help stratify patients, enabling personalized pain management.
- Various strategies for designing miRNA-based analgesics are under investigation.
Conclusions:
- miRNAs represent a significant area of research for understanding and managing chronic pain.
- miRNA-based approaches hold potential for developing targeted analgesics and personalized therapies for chronic pain.
- Ongoing clinical trials suggest miRNAs could become a valuable therapeutic tool for chronic pain patients.
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