title: Targeting Epigenetic Mechanisms for Chronic Pain: A Valid Approach for the Development of Novel Therapeutics.
abstract: Chronic pain is a multifaceted and complex condition. Broadly classified into somatic, visceral, or neuropathic pain, it is poorly managed despite its prevalence. Current drugs used for the treatment of chronic pain are limited by tolerance with long-term use, abuse potential, and multiple adverse side effects. The persistent nature of pain suggests that epigenetic machinery may be a critical factor driving chronic pain. In this review, we discuss the latest insights into epigenetic processes, including DNA methylation, histone modifications, and microRNAs, and we describe their involvement in the pathophysiology of chronic pain and whether epigenetic modifications could be applied as future therapeutic targets for chronic pain. We provide evidence from experimental models and translational research in human tissue that have enhanced our understanding of epigenetic processes mediating nociception, and we then speculate on the potential future use of more specific and selective agents that target epigenetic mechanisms to attenuate pain.
authors.affiliation: Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma (C.O.L., R.D.M., and B.G.-V.M.); and the Veterans Affairs Medical Center, Oklahoma City, Oklahoma (B.G.-V.M.).
authors.forename: Casey O
authors.initials: CO
authors.lastname: Ligon
authors.affiliation: Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma (C.O.L., R.D.M., and B.G.-V.M.); and the Veterans Affairs Medical Center, Oklahoma City, Oklahoma (B.G.-V.M.).
authors.forename: Rachel D
authors.initials: RD
authors.lastname: Moloney
authors.affiliation: Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma (C.O.L., R.D.M., and B.G.-V.M.); and the Veterans Affairs Medical Center, Oklahoma City, Oklahoma (B.G.-V.M.) beverley-greenwood@ouhsc.edu.
authors.forename: Beverley
authors.initials: B
authors.lastname: Greenwood-Van Meerveld
mesh_terms: D000700:Analgesics / Q000494:pharmacology* / Q000627:therapeutic use*; D000818:Animals; D059350:Chronic Pain / Q000188:drug therapy* / Q000235:genetics*; D044127:Epigenesis, Genetic / Q000187:drug effects*; D006801:Humans; D009437:Neuralgia; D059408:Pain Management / Q000379:methods*
chemical_list: D000700:Analgesics