Cited by 62Neuroinflammation and Neurodegeneration MechanismsStress Responses and CortisolNeurogenesis and neuroplasticity mechanisms

Chronic foot‐shock stress potentiates the influx of bone marrow‐derived microglia into hippocampus

Brevet, Marie, Kojima, Hideto, Asakawa, Akihiro, Atsuchi, Kaori, Ushikai, Miharu, Ataka, Koji, Inui, Akio, Kimura, Hiroshi +2 more·2010·Journal of Neuroscience Research

Abstract

For several years, a new population of microglia derived from bone marrow has been described in multiple settings such as infection, trauma, and neurodegenerative disease. The aim of this study was to investigate the migration of bone marrow‐derived cells to the brain parenchyma after stress exposure. Stress exposure was performed in mice that had received bone marrow transplantation from GFP mice, allowing identification of blood‐derived elements within the brain. Electric foot‐shock exposure was chosen because of its ability to serve as fundamental and physical stress in mice. Bone marrow‐derived GFP+ cells migrated to the ventral part of the hippocampus and acquired a ramified microglia‐like morphology. Microglia marker Iba1 was expressed by 100% of the ramified cells, whereas ramified cells were negative for the astrocyte marker GFAP. Compared with the case in the control group, ramified cells significantly increased after chronic exposure to stress (5 days). One month after 5 days of stress exposure, ramified cells significantly decreased in ventral hippocampus compared with the group examined immediately after the last stress exposure. We report for the first time the migration of bone marrow‐derived cells to the ventral hippocampus after stress exposure. These cells have the characteristics of microglia. Mechanisms responsible for this migration and their roles in the brain remain to be determined. © 2010 Wiley‐Liss, Inc.

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Crossref · 10.1002/jnr.22362

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Authors
Brevet, M., Kojima, H., Asakawa, A., Atsuchi, K., Ushikai, M., Ataka, K., Inui, A., Kimura, H., Sevestre, H., & Fujimiya, M.
Affiliations
  • Shiga University of Medical Science (JP)
  • Kagoshima University (JP)
  • Sapporo Medical University (JP)
  • Centre Hospitalier Universitaire Amiens-Picardie (FR)
Corresponding author
Brevet, Marie
Venue
Journal of Neuroscience Research
Publisher
Wiley
Published
2010-02-12
Volume
88
Issue
9
Pages
1890-1897
ISSN
  • 0360-4012 (ISSN-L)
  • 1097-4547
OpenAlex
W2166429487
Cited by
62
References
21
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 1 · 2022: 4 · 2021: 6 · 2020: 9 · 2019: 1 · 2018: 3 · 2017: 7 · 2016: 6 · 2015: 6 · 2014: 4 · 2013: 7 · 2012: 1
FWCI
1.74
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neuroscience Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
hippocampus, microglial migration, bone marrow transplantation, Iba1, ramified microglia, ventral hippocampus, stress exposure, neuroinflammation
MeSH terms
Acute Disease, Animals, Bone Marrow Cells, Calcium-Binding Proteins, Cell Movement, Chronic Disease, Electroshock, Female, Glial Fibrillary Acidic Protein, Hippocampus, Immunohistochemistry, Mice, Inbred C57BL, Mice, Transgenic, Microfilament Proteins, Nerve Tissue Proteins, Random Allocation, Stress, Psychological, Time Factors, Bone Marrow Transplantation, Microglia, Green Fluorescent Proteins, Mice

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