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Review
. 2022 Nov 10;34(6):599-611.
doi: 10.1515/revneuro-2022-0089. Print 2023 Aug 28.

An update to pain management after spinal cord injury: from pharmacology to circRNAs

Graciela L Mazzone  1 , María F Coronel  1 , Miranda Mladinic  2 , Cynthia Sámano  3
Affiliations
Review

An update to pain management after spinal cord injury: from pharmacology to circRNAs

Graciela L Mazzone et al. Rev Neurosci. .

Abstract

Neuropathic pain (NP) following a spinal cord injury (SCI) is often hard to control and therapies should be focused on the physical, psychological, behavioral, social, and environmental factors that may contribute to chronic sensory symptoms. Novel therapeutic treatments for NP management should be based on the combination of pharmacological and nonpharmacological options. Some of them are addressed in this review with a focus on mechanisms and novel treatments. Several reports demonstrated an aberrant expression of non-coding RNAs (ncRNAs) that may represent key regulatory factors with a crucial role in the pathophysiology of NP and as potential diagnostic biomarkers. This review analyses the latest evidence for cellular and molecular mechanisms associated with the role of circular RNAs (circRNAs) in the management of pain after SCI. Advantages in the use of circRNA are their stability (up to 48 h), and specificity as sponges of different miRNAs related to SCI and nerve injury. The present review discusses novel data about deregulated circRNAs (up or downregulated) that sponge miRNAs, and promote cellular and molecular interactions with mRNAs and proteins. This data support the concept that circRNAs could be considered as novel potential therapeutic targets for NP management especially after spinal cord injuries.

Keywords: circular RNAs; molecular modulators; neuropathic pain; non-coding RNAs.

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