Cited by 674Inflammasome and immune disordersGenetics, Aging, and Longevity in Model OrganismsNeuroinflammation and Neurodegeneration Mechanisms

Canonical Nlrp3 Inflammasome Links Systemic Low-Grade Inflammation to Functional Decline in Aging

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Youm, Yun-Hee, Grant, Ryan W., McCabe, Laura R., Albarado, Diana C., Nguyen, Kim Yen, Ravussin, Anthony, Pistell, Paul, Newman, Susan +7 more·2013·Cell Metabolism

Abstract

Despite a wealth of clinical data showing an association between inflammation and degenerative disorders in the elderly, the immune sensors that causally link systemic inflammation to aging remain unclear. Here we detail a mechanism by which the Nlrp3 inflammasome controls systemic low-grade age-related "sterile" inflammation in both periphery and brain independently of the noncanonical caspase-11 inflammasome. Ablation of Nlrp3 inflammasome protected mice from age-related increases in the innate immune activation, alterations in CNS transcriptome, and astrogliosis. Consistent with the hypothesis that systemic low-grade inflammation promotes age-related degenerative changes, the deficient Nlrp3 inflammasome-mediated caspase-1 activity improved glycemic control and attenuated bone loss and thymic demise. Notably, IL-1 mediated only Nlrp3 inflammasome-dependent improvement in cognitive function and motor performance in aged mice. These studies reveal Nlrp3 inflammasome as an upstream target that controls age-related inflammation and offer an innovative therapeutic strategy to lower Nlrp3 activity to delay multiple age-related chronic diseases.

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Crossref · 10.1016/j.cmet.2013.09.010

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  • Ablation of Nlrp3 in mice reduced circulating levels of IL-18 and IL-1β and reduced microglial activation and astrogliosis in the hippocampus.

    “ablation of Nlrp3 in mice reduced circulating levels of IL-18 and IL-1β and reduced microglial activation and astrogliosis in the hippocampus.”

    From Microglial function, INPP5D/SHIP1 signaling, and NLRP3 inflammasome activation: implications for Alzheimer’s disease (2023) · cites this paper as [73]

    The Results sections on peripheral inflammation and hippocampal inflammation report reduced circulating IL-18, reduced microglial activation, and reduced astrogliosis in aged Nlrp3-deficient mice. They do not support a reduction in circulating IL-1β: serum and plasma IL-1β were not measurable in 23-month-old wild-type mice. Page numbers are not provided in our copy. (LLM, conf=0.92)

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  • Nlrp3 ablation increased expression of genes related to learning and memory and reduced age-related cognitive decline in wild type mice.

    “Nlrp3 ablation also increased expression of genes related to learning and memory and reduced age-related cognitive decline in “wild type” mice [73].”

    From Microglial function, INPP5D/SHIP1 signaling, and NLRP3 inflammasome activation: implications for Alzheimer’s disease (2023) · cites this paper as [73]

    The Results sections on innate immune activation and healthspan report increased expression of learning- and memory-related genes and protection from age-related cognitive decline in aged Nlrp3-deficient mice. The claim's qualification “in wild type mice” is incorrect: wild-type mice were the comparator, not the mice in which Nlrp3 was ablated. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Various DAMPs that accumulate throughout an organism's lifespan activate the NLRP3 inflammasome, leading to elevated IL-1β levels associated with aging.

    “Various DAMPs that accumulate throughout an organism’s lifespan activate the NLRP3 inflammasome, which leads to elevated IL-1β levels associated with aging [73].”
  • Inflammaging is driven in part by NLRP3 inflammasome activation.

    “Inflammaging is driven in part by NLRP3 inflammasome activation,5–8”
  • Ablation of the NLRP3 inflammasome protects mice from age-related increases in innate immune activation, alterations in the CNS transcriptome, and astrogliosis, while improving glycemic control and motor performance.

    “Ablation of the NLRP3 inflammasome protects mice from age-related increases in innate immune activation, alterations in the CNS transcriptome, and astrogliosis, while improving glycemic control and motor performance (86).”

    From Connecting aging biology and inflammation in the omics era (2022) · cites this paper as [86]

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Research works printed but not linked: 1

  1. [37]Naito AT Sumida T Nomura S Liu ML Higo T Nakagawa A Okada K Sakai T Hashimoto A Hara Y Complement C1q activates canonical Wnt signaling and promotes aging-related phenotypes Cell 2012 149 1298 1313 22682250 PMC3529917

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Authors
Youm, Y.-H., Grant, R. W., McCabe, L. R., Albarado, D. C., Nguyen, K. Y., Ravussin, A., Pistell, P., Newman, S., Carter, R., Laque, A., Münzberg, H., Rosen, C. J., Ingram, D. K., Salbaum, J. M., & Dixit, V. D.
Affiliations
  • Pennington Biomedical Research Center (US)
  • Michigan State University (US)
  • Louisiana State University (US)
  • Maine Medical Center Research Institute (US)
Corresponding author
Dixit, Vishwa Deep
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2013-10
Volume
18
Issue
4
Pages
519-532
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2153328565
Cited by
674
References
49
Citations by year
2026: 57 · 2025: 54 · 2024: 65 · 2023: 52 · 2022: 76 · 2021: 62 · 2020: 70 · 2019: 55 · 2018: 52 · 2017: 46 · 2016: 24 · 2015: 39 · 2014: 19 · 2013: 1
FWCI
12.38
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (R01AG043608, AG043608)
  • National Institute of General Medical Sciences (P20GM103528)
  • National Institute of Allergy and Infectious Diseases (AI105097, R56AI105097, R01AI105097)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK090556, DK090556, P30DK020572, P30DK072476)
  • National Center for Research Resources (P20-RR02195)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD055528, R01HD055528)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
NLRP3 inflammasome, low-grade inflammation, aging, sterile inflammation, caspase-1, caspase-11, interleukin-1, astrocyte activation, cognitive decline, motor performance, bone loss, thymic atrophy, glycemic control, neuroinflammation, age-related degenerative diseases
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Aging, Animals, Carrier Proteins, Cognition, Cytoskeletal Proteins, Hippocampus, Immunity, Innate, Interleukin-1, Motor Activity, Signal Transduction, Receptors, Interleukin-1, Glucose Intolerance, Mice, Knockout, Caspases, Caspase 1, Apoptosis Regulatory Proteins, Mice, CARD Signaling Adaptor Proteins, Caspases, Initiator, Inflammasomes, Transcriptome

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