Cited by 15Sirtuins and Resveratrol in MedicineGenetics, Aging, and Longevity in Model OrganismsTelomeres, Telomerase, and Senescence

SIRT7 regulates NUCKS1 chromatin binding to elicit metabolic and inflammatory gene expression in senescence and liver aging

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Tran, Khoa A., Gilbert, Michael, Vazquez, Berta N., Ianni, Alessandro, Garcia, Benjamin A., Vaquero, Alejandro, Berger, Shelley L.·2025·Molecular Cell

Published version of a preprint

Abstract

Sirtuin enzymes are deeply associated with senescence and aging. Sirtuin proteins are tightly regulated, but how their levels are governed during aging and how they elicit tissue-specific cellular changes are unclear. Here, we demonstrate that SIRT7 undergoes proteasomal degradation during senescence via targeting by the E3 ligase TRIP12. We identified the transcription factor nuclear casein kinase and cyclin-dependent kinase substrate 1 (NUCKS1) as an interactor of SIRT7 and found NUCKS1 recruitment onto chromatin during senescence mediated by SIRT7 loss, correlating with increased NUCKS1 acetylation. NUCKS1 depletion delayed senescence, leading to reduced inflammatory gene expression associated with transcription factors RELA and CEBPβ. In Sirt7 knockout and aged mouse livers, NUCKS1 was bound at the promoters and enhancers of age-related genes, and these regulatory regions gained accessibility during aging. Overall, our results uncover NUCKS1 as an interactor of SIRT7 and indicate that proteasomal loss of SIRT7 during senescence and liver aging promotes NUCKS1 acetylation and chromatin binding to induce metabolic and inflammatory genes.

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Crossref · 10.1016/j.molcel.2025.05.025

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Authors
Tran, K. A., Gilbert, M., Vazquez, B. N., Ianni, A., Garcia, B. A., Vaquero, A., & Berger, S. L.
Affiliations
  • University of Pennsylvania (US)
  • Washington University in St. Louis (US)
  • Josep Carreras Leukaemia Research Institute (ES)
Corresponding author
Berger, Shelley L.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2025-06
Volume
85
Issue
12
Pages
2390-2408.e6
ISSN
1097-2765 (ISSN-L)
OpenAlex
W4411237880
Cited by
15
References
110
Citations by year
2026: 10 · 2025: 4 · 2024: 1
FWCI
4.15
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (acceptedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed Central (submittedVersion)
Funders
  • National Institute on Aging (P01AG031862, F32AG074641, P01AG047200, R01AG092045)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD106051)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
SIRT7, NUCKS1, senescence, liver aging, proteasomal degradation, TRIP12, E3 ubiquitin ligase, protein acetylation, chromatin binding, inflammatory gene expression, metabolic gene expression, RelA, C/EBPβ, enhancer accessibility, sirtuins

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