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Nerve Growth Factor Signaling and Its Contribution to Pain

Authors Barker PA, Mantyh P, Arendt-Nielsen L, Viktrup L, Tive L

Received 30 January 2020

Accepted for publication 25 April 2020

Published 26 May 2020 Volume 2020:13 Pages 1223—1241

DOI https://doi.org/10.2147/JPR.S247472

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Robert B. Raffa


Philip A Barker,1 Patrick Mantyh,2 Lars Arendt-Nielsen,3 Lars Viktrup,4 Leslie Tive5

1Department of Biology, University of British Columbia, Kelowna, BC, Canada; 2Department of Pharmacology, University of Arizona, Tucson, AZ, USA; 3Department of Health Science and Technology and the Center for Sensory–Motor Interaction/Center for Neuroplasticity and Pain, Aalborg University, Aalborg, Denmark; 4Eli Lilly and Company, Indianapolis, IN, USA; 5Pfizer, Inc, New York, NY, USA

Correspondence: Philip A Barker
The University of British Columbia Okanagan Campus, Charles E. Fipke Centre 322, 3247 University Way, Kelowna, BC V1V 2J4, Canada
Tel +12508079582
Email philip.barker@ubc.ca

Abstract: Nerve growth factor (NGF) is a neurotrophic protein essential for the growth, differentiation, and survival of sympathetic and sensory afferent neurons during development. A substantial body of evidence, based on both animal and human studies, demonstrates that NGF plays a pivotal role in modulation of nociception in adulthood. This has spurred development of a variety of novel analgesics that target the NGF signaling pathway. Here, we present a narrative review designed to summarize how NGF receptor activation and downstream signaling alters nociception through direct sensitization of nociceptors at the site of injury and changes in gene expression in the dorsal root ganglion that collectively increase nociceptive signaling from the periphery to the central nervous system. This review illustrates that NGF has a well-known and multifunctional role in nociceptive processing, although the precise signaling pathways downstream of NGF receptor activation that mediate nociception are complex and not completely understood. Additionally, much of the existing knowledge derives from studies performed in animal models and may not accurately represent the human condition. However, available data establish a role for NGF in the modulation of nociception through effects on the release of inflammatory mediators, nociceptive ion channel/receptor activity, nociceptive gene expression, and local neuronal sprouting. The role of NGF in nociception and the generation and/or maintenance of chronic pain has led to it becoming a novel and attractive target of pain therapeutics for the treatment of chronic pain conditions.

Keywords: nerve growth factor, nociception, sensitization, chronic pain

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