Cited by 71Pain Mechanisms and TreatmentsNerve injury and regenerationNeuroinflammation and Neurodegeneration Mechanisms

Site-specific subtypes of macrophages recruited after peripheral nerve injury

Komori, Tadasuke, Morikawa, Yoshihiro, Inada, Takeshi, Hisaoka, Tomoko, Senba, Emiko·2011·Neuroreport

Abstract

After partial ligation of mouse sciatic nerve, the subtypes of macrophages were examined in the injured nerve and dorsal root ganglia (DRGs). Many M1 macrophages, which were inducible nitric oxide synthase (iNOS)-positive and arginase-1 (Arg-1)-negative, and neutrophils infiltrated the injured nerve. In contrast, almost all macrophages infiltrating the ipsilateral side of DRGs after the nerve injury were iNOS⁻/Arg-1⁺, M2 type. The infiltration of M1 and M2 macrophages was first observed in the injured nerve and ipsilateral DRGs on days 1 and 2, respectively. In addition, the macrophage infiltration preceded the activation of microglia in the ipsilateral dorsal horn of spinal cord. Thus, infiltrating macrophages after peripheral nerve injury may play unique roles dependent on the location in the development of neuropathic pain.

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Crossref · 10.1097/wnr.0b013e32834cd76a

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Authors
Komori, T., Morikawa, Y., Inada, T., Hisaoka, T., & Senba, E.
Affiliations
Wakayama Medical University (JP)
Corresponding author
Morikawa, Yoshihiro
Venue
Neuroreport
Published
2011-12-07
Volume
22
Issue
17
Pages
911-917
ISSN
0959-4965 (ISSN-L)
OpenAlex
W2090477155
Cited by
71
References
22
Citations by year
2025: 2 · 2024: 5 · 2023: 6 · 2022: 4 · 2021: 6 · 2020: 10 · 2019: 2 · 2018: 4 · 2017: 6 · 2016: 7 · 2015: 5 · 2014: 5 · 2013: 5 · 2012: 4
FWCI
3.06
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroreport (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Wakayama Medical University
  • Japan Society for the Promotion of Science (21600011)
Topics
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
macrophage polarization, M1 macrophages, M2 macrophages, peripheral nerve injury, sciatic nerve ligation, dorsal root ganglia, inducible nitric oxide synthase, arginase-1, neutrophils, microglial activation, neuropathic pain, macrophage infiltration
MeSH terms
Animals, Cell Count, Disease Models, Animal, Fluorescent Antibody Technique, Ganglia, Spinal, Macrophage Activation, Macrophages, Male, Mice, Inbred C57BL, Neuralgia, Sciatic Nerve, Spinal Cord, Antigens, CD, Microglia, Mice, Peripheral Nerve Injuries

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