The intestinal epithelium serves as a barrier that facilitates interaction between intrinsic and environmental factors. Aging is accompanied by the gradual deterioration of this barrier. We postulate that barrier dysfunction results from defects in epithelial membrane trafficking that exacerbate age-related metabolic imbalances. Herein, we integrate barrier integrity, protein homeostasis, membrane trafficking and intracellular lipid sensing into an age-determining mechanism.
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Acknowledgements
Research reported in this publication was supported by the National Institute Of General Medical Sciences of the National Institutes of Health under award number F31GM140620. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. L.T. is supported by 1F31GM140620-01A1. P.M.D. and R.S.F are supported by the Clayton Foundation for Research, the Welch Foundation (I-2061-20210327), the NIH (R01AG076529, R01AG061338), and the Hevolution/American Federation of Aging Research.
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L.T. and R.S.F. conceptualized, wrote and edited the manuscript. P.M.D. conceptualized and edited the manuscript.
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Tatge, L., Solano Fonseca, R. & Douglas, P.M. A framework for intestinal barrier dysfunction in aging. Nat Aging 3, 1172–1174 (2023). https://doi.org/10.1038/s43587-023-00492-0
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DOI: https://doi.org/10.1038/s43587-023-00492-0
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