A framework for intestinal barrier dysfunction in aging.

Tatge, Lexus; Solano Fonseca, Rene; Douglas, Peter M · Nat Aging · 2023

basic_science · Level V

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Abstract

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.

Medical subject headings