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ToolsRees, Nia Paddison, Conway, Jessica, Dugan, Ben, Amir, Sayeda S., Parker, Aimee, Carding, Simon R. and Duggal, Niharika A. (2025) Defining Microbiota-Derived Metabolite Butyrate as a Senomorphic:Therapeutic Potential in the Age-Related T Cell Senescence. Aging Cell, 24 (12). ISSN 1474-9718
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Abstract
Advancing age is accompanied by an accumulation of senescent T cells that secrete pro-inflammatory senescence-associated secretory phenotype (SASP) molecules. Gut-microbiota-derived signals are increasingly recognised as immunomodulators. In the current study, we demonstrated that ageing and the accumulation of senescent T cells are accompanied by a reduction in microbial-derived short-chain fatty acids (SCFAs). Culturing aged T cells in the presence of butyrate suppresses the induction of a senescence phenotype and inhibits the secretion of pro-inflammatory SASP factors, such as IL6 and IL8. Administration of faecal supernatants from young mice rich in butyrate prevented in vivo accumulation of senescent spleen cells in aged mice. The molecular pathways governing butyrate's senomorphic potential include a reduced expression of DNA damage markers, lower mitochondrial ROS accumulation, and downregulation of mTOR activation, which negatively regulates the transcription factor NFκB. Our findings establish butyrate as a potent senomorphic agent and provide the evidence base for future microbiome restitution intervention trials using butyrate supplements for combating T cell senescence, ultimately reducing inflammation and combating age-related pathologies to extend lifelong health.
| Item Type: | Article |
|---|---|
| Additional Information: | Data Availability Statement: The raw flow cytometry data generated during the current study will be made available on Flow repository and the microscopy images generated during the current study will be shared via a google folder. |
| Uncontrolled Keywords: | ageing,cellular senescence,inflammation,t cell,ageing,cell biology ,/dk/atira/pure/subjectarea/asjc/1300/1302 |
| Faculty \ School: | Faculty of Medicine and Health Sciences > Norwich Medical School |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 14 May 2026 15:16 |
| Last Modified: | 14 May 2026 15:16 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/103029 |
| DOI: | 10.1111/acel.70257 |
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