Cited by 10Pain Mechanisms and TreatmentsMigraine and Headache StudiesIon Channels and Receptors

Characterisation of periorbital mechanical allodynia in the reserpine-induced fibromyalgia model in mice: The role of the Schwann cell TRPA1/NOX1 signalling pathway

Brum, Evelyne Silva, Landini, Lorenzo, Souza Monteiro de Araújo, Daniel, Marini, Matilde, Geppetti, Pierangelo, Nassini, Romina, De Logu, Francesco, Oliveira, Sara Marchesan·2025·Free Radical Biology and Medicine

Abstract

Fibromyalgia (FM) is a complex and multifaceted condition characterized by a range of clinical symptoms, including widespread pain and a strong association with migraine headaches. Recent findings have underscored the role of oxidative stress and transient receptor potential ankyrin 1 (TRPA1) channel in migraine and FM. However, the precise mechanisms underlying the comorbidity between migraine and FM are unclear. Periorbital mechanical allodynia (PMA), which recapitulates one of the major symptoms of migraine, and the feed-forward mechanism driven by reactive oxygen species and TRPA1, were investigated in a reserpine-induced FM model in C57BL/6J mice, employing pharmacological interventions and genetic approaches. Reserpine-treated mice developed PMA (which was alleviated by antimigraine drugs) and increased endoneurial macrophages and oxidative stress markers in the trigeminal nerve tissues (neuroinflammation). These responses were absent upon macrophage depletion and by pharmacological inhibition or global genetic deletion of the TRPA1 channel. Furthermore, selective silencing of TRPA1 in Schwann cells attenuated both reserpine-induced PMA and neuroinflammation, while selective silencing of TRPA1 in sensory neurons reduced PMA but not neuroinflammation. In reserpine-treated mice, Schwann cell TRPA1 promoted NADPH oxidase 1-mediated reactive oxygen species generation and macrophage density increase in the mouse trigeminal nerve, which sustains PMA. Targeting TRPA1 channels in Schwann cells could offer a novel therapeutic strategy for FM-related headaches.

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Crossref · 10.1016/j.freeradbiomed.2025.01.040

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  • Macrophage infiltration in trigeminal nerve tissues in fibromyalgia model mice suggests that monocytes/macrophages are closely related to neuropathic pain.

    “Recent studies have reported macrophage infiltration in the trigeminal nerve tissues in FMS model mice, suggesting that monocytes/macrophages are closely related to NP (55).”

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Authors
Brum, E. S., Landini, L., Souza Monteiro de Araújo, D., Marini, M., Geppetti, P., Nassini, R., De Logu, F., & Oliveira, S. M.
Affiliations
  • University of Florence (IT)
  • Universidade Federal de Santa Maria (BR)
Corresponding author
Nassini, Romina
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2025-03
Volume
229
Pages
289-299
ISSN
0891-5849 (ISSN-L)
OpenAlex
W4406606592
Cited by
8
References
76
Citations by year
2026: 6 · 2025: 2
FWCI
5.15
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Florence Research (University of Florence) (submittedVersion)
Funders
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (150611/2022-6, 309404/2023-1, 88887.475201/2020-00, 88887.185973/2018-00)
  • Telethon Foundation
  • NextGenerationEU
  • European Research Council (835286)
  • Horizon 2020
  • Ministero dell’Istruzione, dell’Università e della Ricerca
  • Coordination of Higher Education Personnel Improvement (88881.844988/2023-01)
  • European Union
  • Government of Italy Ministry of Education University and Research
Topics
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Migraine and Headache Studies
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
Keywords
fibromyalgia, migraine, TRPA1, Schwann cells, NOX1, reactive oxygen species, oxidative stress, neuroinflammation, trigeminal nerve, sensory neurons
MeSH terms
TRPA1 Cation Channel, NADPH Oxidase 1, Animals, Disease Models, Animal, Fibromyalgia, Humans, Hyperalgesia, Macrophages, Male, Mice, Inbred C57BL, Migraine Disorders, Reserpine, Schwann Cells, Trigeminal Nerve, Signal Transduction, Reactive Oxygen Species, Mice, Knockout, Oxidative Stress, Mice

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