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@ARTICLE{LaPorta:289800,
author = {C. La Porta and T. Plum$^*$ and R. Palme and M. Mack and A.
Tappe-Theodor},
title = {{R}epeated social defeat stress differently affects
arthritis-associated hypersensitivity in male and female
mice.},
journal = {Brain, behavior and immunity},
volume = {119},
issn = {0889-1591},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {DKFZ-2024-00879},
pages = {572-596},
year = {2024},
note = {2024 Apr 23:119:572-596},
abstract = {Chronic stress enhances the risk of neuropsychiatric
disorders and contributes to the aggravation and chronicity
of pain. The development of stress-associated diseases,
including pain, is affected by individual vulnerability or
resilience to stress, although the mechanisms remain
elusive. We used the repeated social defeat stress model
promoting susceptible and resilient phenotypes in male and
female mice and induced knee mono-arthritis to investigate
the impact of stress vulnerability on pain and immune system
regulation. We analyzed different pain-related behaviors,
measured blood cytokine and immune cell levels, and
performed histological analyses at the knee joints and
pain/stress-related brain areas. Stress susceptible male and
female mice showed prolonged arthritis-associated
hypersensitivity. Interestingly, hypersensitivity was
exacerbated in male but not female mice. In males, stress
promoted transiently increased neutrophils and Ly6Chigh
monocytes, lasting longer in susceptible than resilient
mice. While resilient male mice displayed persistently
increased levels of the anti-inflammatory interleukin
(IL)-10, susceptible mice showed increased levels of the
pro-inflammatory IL-6 at the early- and IL-12 at the late
arthritis stage. Although joint inflammation levels were
comparable among groups, macrophage and neutrophil
infiltration was higher in the synovium of susceptible mice.
Notably, only susceptible male mice, but not females,
presented microgliosis and monocyte infiltration in the
prefrontal cortex at the late arthritis stage. Blood
Ly6Chigh monocyte depletion during the early inflammatory
phase abrogated late-stage hypersensitivity and the
associated histological alterations in susceptible male
mice. Thus, recruitment of blood Ly6Chigh monocytes during
the early arthritis phase might be a key factor mediating
the persistence of arthritis pain in susceptible male mice.
Alternative neuro-immune pathways that remain to be explored
might be involved in females.},
keywords = {Arthritis (Other) / Cytokines (Other) / Microglia (Other) /
Monocytes (Other) / Neutrophils (Other) / Pain (Other) /
Social defeat (Other)},
cin = {D110},
ddc = {150},
cid = {I:(DE-He78)D110-20160331},
pnm = {314 - Immunologie und Krebs (POF4-314)},
pid = {G:(DE-HGF)POF4-314},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38663771},
doi = {10.1016/j.bbi.2024.04.025},
url = {https://inrepo02.dkfz.de/record/289800},
}