Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An Update

Injuries to the nervous system can result in a debilitating neuropathic pain state that is often resistant to treatment with available analgesics, which are commonly associated with several side-effects. Growing pre-clinical and clinical evidence over the last two decades indicates that immune cell-...

Full description

Bibliographic Details
Main Authors: Rita Silva, Marzia Malcangio
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-07-01
Series:Frontiers in Pain Research
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpain.2021.684684/full
_version_ 1819138112778928128
author Rita Silva
Marzia Malcangio
author_facet Rita Silva
Marzia Malcangio
author_sort Rita Silva
collection DOAJ
description Injuries to the nervous system can result in a debilitating neuropathic pain state that is often resistant to treatment with available analgesics, which are commonly associated with several side-effects. Growing pre-clinical and clinical evidence over the last two decades indicates that immune cell-mediated mechanisms both in the periphery and in the Central Nervous System (CNS) play significant roles in the establishment and maintenance of neuropathic pain. Specifically, following peripheral nerve injury, microglia, which are CNS resident immune cells, respond to the activity of the first pain synapse in the dorsal horn of spinal cord and also to neuronal activity in higher centres in the brain. This microglial response leads to the production and release of several proinflammatory mediators which contribute to neuronal sensitisation under neuropathic pain states. In this review, we collect evidence demonstrating the critical role played by the Fractalkine/CX3CR1 signalling pathway in neuron-to-microglia communication in neuropathic pain states and explore how strategies that include components of this pathway offer opportunities for innovative targets for neuropathic pain.
first_indexed 2024-12-22T11:01:36Z
format Article
id doaj.art-8c09ef55c27e4ceeb7edc54e3db53826
institution Directory Open Access Journal
issn 2673-561X
language English
last_indexed 2024-12-22T11:01:36Z
publishDate 2021-07-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Pain Research
spelling doaj.art-8c09ef55c27e4ceeb7edc54e3db538262022-12-21T18:28:29ZengFrontiers Media S.A.Frontiers in Pain Research2673-561X2021-07-01210.3389/fpain.2021.684684684684Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An UpdateRita SilvaMarzia MalcangioInjuries to the nervous system can result in a debilitating neuropathic pain state that is often resistant to treatment with available analgesics, which are commonly associated with several side-effects. Growing pre-clinical and clinical evidence over the last two decades indicates that immune cell-mediated mechanisms both in the periphery and in the Central Nervous System (CNS) play significant roles in the establishment and maintenance of neuropathic pain. Specifically, following peripheral nerve injury, microglia, which are CNS resident immune cells, respond to the activity of the first pain synapse in the dorsal horn of spinal cord and also to neuronal activity in higher centres in the brain. This microglial response leads to the production and release of several proinflammatory mediators which contribute to neuronal sensitisation under neuropathic pain states. In this review, we collect evidence demonstrating the critical role played by the Fractalkine/CX3CR1 signalling pathway in neuron-to-microglia communication in neuropathic pain states and explore how strategies that include components of this pathway offer opportunities for innovative targets for neuropathic pain.https://www.frontiersin.org/articles/10.3389/fpain.2021.684684/fullneuropathic painspinal cordmicrogliafractalkinecathepsin SCX3CR1
spellingShingle Rita Silva
Marzia Malcangio
Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An Update
Frontiers in Pain Research
neuropathic pain
spinal cord
microglia
fractalkine
cathepsin S
CX3CR1
title Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An Update
title_full Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An Update
title_fullStr Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An Update
title_full_unstemmed Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An Update
title_short Fractalkine/CX3CR1 Pathway in Neuropathic Pain: An Update
title_sort fractalkine cx3cr1 pathway in neuropathic pain an update
topic neuropathic pain
spinal cord
microglia
fractalkine
cathepsin S
CX3CR1
url https://www.frontiersin.org/articles/10.3389/fpain.2021.684684/full
work_keys_str_mv AT ritasilva fractalkinecx3cr1pathwayinneuropathicpainanupdate
AT marziamalcangio fractalkinecx3cr1pathwayinneuropathicpainanupdate