Cited by 425Inflammasome and immune disordersSirtuins and Resveratrol in MedicineAdipokines, Inflammation, and Metabolic Diseases

An Acetylation Switch of the NLRP3 Inflammasome Regulates Aging-Associated Chronic Inflammation and Insulin Resistance

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He, Ming, Chiang, Hou-Hsien, Luo, Hanzhi, Zheng, Zhifang, Qiao, Qi, Wang, Li, Tan, Mingdian, Ohkubo, Rika +4 more·2020·Cell Metabolism

Abstract

It is well documented that the rate of aging can be slowed, but it remains unclear to which extent aging-associated conditions can be reversed. How the interface of immunity and metabolism impinges upon the diabetes pandemic is largely unknown. Here, we show that NLRP3, a pattern recognition receptor, is modified by acetylation in macrophages and is deacetylated by SIRT2, an NAD+-dependent deacetylase and a metabolic sensor. We have developed a cell-based system that models aging-associated inflammation, a defined co-culture system that simulates the effects of inflammatory milieu on insulin resistance in metabolic tissues during aging, and aging mouse models; and demonstrate that SIRT2 and NLRP3 deacetylation prevent, and can be targeted to reverse, aging-associated inflammation and insulin resistance. These results establish the dysregulation of the acetylation switch of the NLRP3 inflammasome as an origin of aging-associated chronic inflammation and highlight the reversibility of aging-associated chronic inflammation and insulin resistance.

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Crossref · 10.1016/j.cmet.2020.01.009

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  • Reduced NAD+ levels impair SIRT2 activity, which normally deacetylates and inactivates the NLRP3 inflammasome, thereby counteracting inflammation.

    “Reduced NAD+ levels also impair SIRT2 activity, which normally deacetylates and inactivates the NLR family pyrin domain containing 3 (NLRP3) inflammasome, thereby counteracting inflammation (71).”

    From Connecting aging biology and inflammation in the omics era (2022) · cites this paper as [71]

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Authors
He, M., Chiang, H.-H., Luo, H., Zheng, Z., Qiao, Q., Wang, L., Tan, M., Ohkubo, R., Mu, W.-C., Zhao, S., Wu, H., & Chen, D.
Affiliations
  • University of California, Berkeley (US)
  • Boston Children's Hospital (US)
  • Fudan University (CN)
Corresponding author
Chen, Danica
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2020-03
Volume
31
Issue
3
Pages
580-591.e5
ISSN
1550-4131 (ISSN-L)
OpenAlex
W3004952813
Cited by
425
References
95
Citations by year
2026: 54 · 2025: 82 · 2024: 82 · 2023: 69 · 2022: 57 · 2021: 47 · 2020: 33 · 2019: 1
FWCI
16.86
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute of Food and Agriculture
  • National Institutes of Health
  • American Federation for Aging Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
NLRP3 inflammasome, protein acetylation, SIRT2, deacetylation, insulin resistance, macrophages, NAD+-dependent deacetylase, diabetes mellitus, co-culture model, aging reversal
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Acetylation, Aging, Amino Acid Sequence, Animals, Chronic Disease, Disease Models, Animal, Glucose, Homeostasis, Inflammation, Insulin Resistance, Mice, Inbred C57BL, Models, Biological, Peptides, Mice, Knockout, Overnutrition, Sirtuin 2, Inflammasomes

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