Cited by 743Neuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatmentsSirtuins and Resveratrol in Medicine

SIRT1 Protects against Microglia-dependent Amyloid-β Toxicity through Inhibiting NF-κB Signaling

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Chen, Jennifer, Zhou, Yungui, Mueller-Steiner, Sarah, Chen, Lin-Feng, Kwon, Hakju, Yi, Saili, Mucke, Lennart, Gan, Li·2005·Journal of Biological Chemistry

Abstract

Accumulating evidence suggests that neurodegeneration induced by pathogenic proteins depends on contributions from surrounding glia. Here we demonstrate that NF-kappaB signaling in microglia is critically involved in neuronal death induced by amyloid-beta (Abeta) peptides, which are widely presumed to cause Alzheimer disease. Constitutive inhibition of NF-kappaB signaling in microglia by expression of the nondegradable IkappaBalpha superrepressor blocked neurotoxicity, indicating a pivotal role for microglial NF-kappaB signaling in mediating Abeta toxicity. Stimulation of microglia with Abeta increased acetylation of RelA/p65 at lysine 310, which regulates the NF-kappaB pathway. Overexpression of SIRT1 deacetylase and the addition of the SIRT1 agonist resveratrol markedly reduced NF-kappaB signaling stimulated by Abeta and had strong neuroprotective effects. Our results support a glial loop hypothesis by demonstrating a critical role for microglial NF-kappaB signaling in Abeta-dependent neurodegeneration. They also implicate SIRT1 in this pathway and highlight the therapeutic potential of resveratrol and other sirtuin-activating compounds in Alzheimer disease.

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  • Over expression of SIRT1 deacetylase and SIRT1 activation by resveratrol significantly protects against microglia-dependent amyloid-β toxicity by inhibiting NF-kB signaling.

    “In a recent study it was found that over expression of SIRT1 deacetylase and SIRT1 activation by resveratrol significantly protects against microglia-dependent amyloid-β toxicity by inhibiting NF-kB signaling199.”

    From Mitochondrial Approaches for Neuroprotection (2008) · cites this paper as [199]

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  1. Akama, K. T., Albanese, C., Pestell, R. G., and Van Eldik, L. J. (1998) Proc. Natl. Acad. Sci. U. S. A. 95, 5795-5800
  2. Kaltschmidt, B., Uherek, M., Volk, B., Baeuerle, P. A., and Kaltschmidt, C. (1997) Proc. Natl. Acad. Sci. U. S. A. 94, 2642-2647
  3. Kaltschmidt, B., Uherek, M., Wellmann, H., Volk, B., and Kaltschmidt, C. (1999) Proc. Natl. Acad. Sci. U. S. A. 96, 9409 -9414
  4. Chen, L.-F., Williams, S., Mu, Y., Nakano, H., Duerr, J. M., Buckbinder, L., and Greene, W. C. (2005) Mol. Cell. Biol., in press

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Authors
Chen, J., Zhou, Y., Mueller-Steiner, S., Chen, L.-F., Kwon, H., Yi, S., Mucke, L., & Gan, L.
Affiliations
Gladstone Institutes (US)
Corresponding author
Gan, Li
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2005-12
Volume
280
Issue
48
Pages
40364-40374
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2074916731
Cited by
740
References
54
Citations by year
2026: 13 · 2025: 13 · 2024: 35 · 2023: 36 · 2022: 22 · 2021: 39 · 2020: 49 · 2019: 30 · 2018: 46 · 2017: 40 · 2016: 26 · 2015: 35 · 2014: 35 · 2013: 48 · 2012: 43
FWCI
17.20
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • University of California, San Francisco
  • National Institute of Neurological Disorders and Stroke (NS43945, R01NS043945)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
Keywords
SIRT1, microglia, amyloid-beta, NF-κB signaling, Alzheimer's disease, neurodegeneration, resveratrol, neuroprotection
MeSH terms
Resveratrol, Alzheimer Disease, Animals, Bromodeoxyuridine, Cells, Cultured, Genetic Vectors, Humans, Immunohistochemistry, Lysine, Microscopy, Fluorescence, Models, Biological, Models, Genetic, Neurons, Stilbenes, Signal Transduction, Lentivirus, Amyloid beta-Peptides, NF-kappa B, Rats, Sprague-Dawley, Microglia, Genes, Reporter, Reverse Transcriptase Polymerase Chain Reaction, Sirtuins, Green Fluorescent Proteins, Rats, Sirtuin 1

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