Cell-cell metabolite exchange creates a pro-survival metabolic environment that extends lifespan
- PMID: 36608659
- DOI: 10.1016/j.cell.2022.12.007
Cell-cell metabolite exchange creates a pro-survival metabolic environment that extends lifespan
Abstract
Metabolism is deeply intertwined with aging. Effects of metabolic interventions on aging have been explained with intracellular metabolism, growth control, and signaling. Studying chronological aging in yeast, we reveal a so far overlooked metabolic property that influences aging via the exchange of metabolites. We observed that metabolites exported by young cells are re-imported by chronologically aging cells, resulting in cross-generational metabolic interactions. Then, we used self-establishing metabolically cooperating communities (SeMeCo) as a tool to increase metabolite exchange and observed significant lifespan extensions. The longevity of the SeMeCo was attributable to metabolic reconfigurations in methionine consumer cells. These obtained a more glycolytic metabolism and increased the export of protective metabolites that in turn extended the lifespan of cells that supplied them with methionine. Our results establish metabolite exchange interactions as a determinant of cellular aging and show that metabolically cooperating cells can shape the metabolic environment to extend their lifespan.
Keywords: chronological aging; eukaryotic longevity; metabolic microenvironment; metabolite exchange interactions.
Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Declaration of interests K.C. is currently employed by AstraZeneca.
Comment in
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Strength in diversity: Intra-cellular metabolite sharing enhances longevity.Cell. 2023 Jan 5;186(1):8-9. doi: 10.1016/j.cell.2022.12.012. Cell. 2023. PMID: 36608660
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