Cited by 96Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsDementia and Cognitive Impairment Research

Ablation of TNF-RI/RII Expression in Alzheimer's Disease Mice Leads to an Unexpected Enhancement of Pathology

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Montgomery, Sara L., Mastrangelo, Michael A., Habib, Diala, Narrow, Wade C., Knowlden, Sara A., Wright, Terry W., Bowers, William J.·2011·The American Journal of Pathology

Abstract

Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by severe memory loss and cognitive impairment. Neuroinflammation, including the extensive production of pro-inflammatory molecules and the activation of microglia, has been implicated in the disease process. Tumor necrosis factor (TNF)-α, a prototypic pro-inflammatory cytokine, is elevated in AD, is neurotoxic, and colocalizes with amyloid plaques in AD animal models and human brains. We previously demonstrated that the expression of TNF-α is increased in AD mice at ages preceding the development of hallmark amyloid and tau pathological features and that long-term expression of this cytokine in these mice leads to marked neuronal death. Such observations suggest that TNF-α signaling promotes AD pathogenesis and that therapeutics suppressing this cytokine's activity may be beneficial. To dissect TNF-α receptor signaling requirements in AD, we generated triple-transgenic AD mice (3xTg-AD) lacking both TNF-α receptor 1 (TNF-RI) and 2 (TNF-RII), 3xTg-ADxTNF-RI/RII knock out, the cognate receptors of TNF-α. These mice exhibit enhanced amyloid and tau-related pathological features by the age of 15 months, in stark contrast to age-matched 3xTg-AD counterparts. Moreover, 3xTg-ADxTNF-RI/RII knock out-derived primary microglia reveal reduced amyloid-β phagocytic marker expression and phagocytosis activity, indicating that intact TNF-α receptor signaling is critical for microglial-mediated uptake of extracellular amyloid-β peptide pools. Overall, our results demonstrate that globally ablated TNF receptor signaling exacerbates pathogenesis and argues against long-term use of pan-anti-TNF-α inhibitors for the treatment of AD.

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Crossref · 10.1016/j.ajpath.2011.07.001

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  • Microglia from TNFR-deficient 3xTgAD mice show defective phagocytosis, highlighting a protective role for TNF-α in clearance mechanisms.

    “microglia from TNFR-deficient 3xTgAD mice showed defective phagocytosis, highlighting the protective role of TNF-α in facilitating clearance mechanisms.”

    From Microglia in Alzheimer's disease (2017) · cites this paper as [129]

  • TNFR deficiency in 3xTgAD mice is associated with increased amyloid deposition and enhanced tau phosphorylation.

    “TNF receptor (TNFR) deficiency in 3xTgAD mice was associated with increased amyloid deposition and enhanced tau phosphorylation (129).”

    From Microglia in Alzheimer's disease (2017) · cites this paper as [129]

  • Global knockout of TNFR1 and TNFR2 receptors in 3xTg mice worsened Aβ and tau pathology.

    “another group found that global knockout of TNFR1 and TNFR2 receptors in 3xTg mice worsened Aβ and tau pathology [149].”

    From Glial contributions to neurodegeneration in tauopathies (2017) · cites this paper as [149]

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Research works printed but not linked: 3

  1. Gaikwad S, Larionov S, Wang Y, Dannenberg H, Matozaki T, Mon- sonego A, Thal DR, Neumann H: Signal regulatory protein-beta1: a microglial modulator of phagocytosis in Alzheimer's disease. Am J Pathol 2009, 175:2528 -2539
  2. Albensi BC, Mattson MP: Evidence for the involvement of TNF and NF- kappaB in hippocampal synaptic plasticity. Synapse 2000, 35:151-159
  3. Caughey B, Lansbury PT: Protofibrils, pores, fibrils, and neurodegeneration: separating the responsible protein aggregates from the innocent bystanders. Annu Rev Neurosci 2003, 26:267-298

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Authors
Montgomery, S. L., Mastrangelo, M. A., Habib, D., Narrow, W. C., Knowlden, S. A., Wright, T. W., & Bowers, W. J.
Affiliations
University of Rochester Medicine (US)
Corresponding author
Bowers, William J.
Venue
The American Journal of Pathology
Publisher
Elsevier BV
Published
2011-10
Volume
179
Issue
4
Pages
2053-2070
ISSN
0002-9440 (ISSN-L)
OpenAlex
W10297594
Cited by
96
References
112
Citations by year
2024: 2 · 2023: 7 · 2022: 4 · 2021: 13 · 2020: 9 · 2019: 6 · 2018: 6 · 2017: 10 · 2016: 6 · 2015: 9 · 2014: 11 · 2013: 8 · 2012: 5
FWCI
5.23
Type
journal article
Language
en
Open access
Locations
  • American Journal Of Pathology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (F31-AG038063, R01-AG023593, R01-AG026328)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, TNF receptor 1, TNF receptor 2, TNF signaling, neuroinflammation, microglia, amyloid-beta phagocytosis, amyloid plaques, tau pathology, 3xTg-AD mice, anti-TNF therapy, receptor knockout mice
MeSH terms
Aging, Alzheimer Disease, Amyloid, Animals, Brain, Calcium-Binding Proteins, Crosses, Genetic, Female, Humans, Male, Microfilament Proteins, Phagocytosis, Synapses, Tumor Necrosis Factor-alpha, Amyloid beta-Protein Precursor, tau Proteins, Microglia, Long-Term Potentiation, Mice, Knockout, Lipopolysaccharide Receptors, Transgenes, Receptors, Tumor Necrosis Factor, Type I, Receptors, Tumor Necrosis Factor, Type II, Adaptor Proteins, Signal Transducing, Mice, CA1 Region, Hippocampal, CA3 Region, Hippocampal

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