Cited by 134Neuroinflammation and Neurodegeneration MechanismsNeurogenesis and neuroplasticity mechanismsGenetics, Aging, and Longevity in Model Organisms

The effects of aging, injury and disease on microglial function: a case for cellular senescence

Miller, Kelly R., Streit, Wolfgang J.·2007·Neuron Glia Biology

Abstract

Neuroinflammation resulting from chronic reactive microgliosis is thought to contribute to age-related neurodegeneration, as well as age-related neurodegenerative diseases, specifically Alzheimer's disease (AD). Support of this theory comes from studies reporting a progressive, age-associated increase in microglia with an activated phenotype. Although the underlying cause(s) of this microglial reactivity is idiopathic, an accepted therapeutic strategy for the treatment of AD is inhibition of microglial activation using anti-inflammatory agents. Although the effectiveness of anti-inflammatory treatment for AD remains equivocal, microglial inhibition is being tested as a potential treatment for additional neurodegenerative disorders including amyotrophic lateral sclerosis and Parkinson's disease. Given the important and necessary functions of microglia in normal brain, careful evaluation of microglial function in the aged brain is a necessary first step in targeting more precise treatment strategies for aging-related neurodegenerative diseases. Studies from our laboratory have shown multiple age-related changes in microglial morphology and function that are suggestive of cellular senescence. In this manuscript, we review current knowledge of microglia in the aging brain and present new, unpublished work that further supports the theory that microglia experience an age-related decline in proliferative function as a result of cellular senescence.

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Crossref · 10.1017/s1740925x08000136

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  • Repeated nerve crush injury results in increased microglial proliferation in young rats, but not in aged rats.

    “For example, repeated nerve crush injury resulted in the increased microglial proliferation in young rats, but not in the aged (Miller and Streit, 2007).”

    From Microglia Priming with Aging and Stress (2017) · cites this paper as Miller and Streit, 2007

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Authors
Miller, K. R., & Streit, W. J.
Affiliations
University of Florida (US)
Corresponding author
Streit, Wolfgang J.
Venue
Neuron Glia Biology
Published
2007-08
Volume
3
Issue
3
Pages
245-253
ISSN
  • 1740-925X (ISSN-L)
  • 1741-0533
OpenAlex
W2099508568
Cited by
134
References
24
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 1 · 2022: 7 · 2021: 13 · 2020: 3 · 2019: 8 · 2018: 8 · 2017: 5 · 2016: 11 · 2015: 5 · 2014: 14 · 2013: 17 · 2012: 9
FWCI
3.59
Type
journal article
Language
en
Open access
closed
Locations
  • Neuron Glia Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
microglia, cellular senescence, brain aging, reactive microgliosis, neuroinflammation, Alzheimer's disease, age-related neurodegeneration, microglial proliferation, anti-inflammatory therapy, amyotrophic lateral sclerosis, Parkinson's disease

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