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Curr Opin Cell Biol. 2019 May 29;60:84-91. doi: 10.1016/j.ceb.2019.04.009. [Epub ahead of print]

Flexibility sustains epithelial tissue homeostasis.

Author information

1
Department of Genetics, Yale School of Medicine, New Haven, CT 06510, USA.
2
Departments of Cell Biology & Dermatology, Yale Stem Cell Center, Yale Cancer Center, Yale School of Medicine, New Haven, CT 06510, USA. Electronic address: Katherine.cockburn@yale.edu.
3
Department of Genetics, Yale School of Medicine, New Haven, CT 06510, USA; Departments of Cell Biology & Dermatology, Yale Stem Cell Center, Yale Cancer Center, Yale School of Medicine, New Haven, CT 06510, USA. Electronic address: Valentina.greco@yale.edu.

Abstract

Epithelia surround our bodies and line most of our organs. Intrinsic homeostatic mechanisms replenish and repair these tissues in the face of wear and tear, wounds, and even the presence of accumulating mutations. Recent advances in cell biology, genetics, and live-imaging techniques have revealed that epithelial homeostasis represents an intrinsically flexible process at the level of individual epithelial cells. This homeostatic flexibility has important implications for how we think about the more dramatic cell plasticity that is frequently thought to be associated with pathological settings. In this review, we will focus on key emerging mechanisms and processes of epithelial homeostasis and elaborate on the known molecular mechanisms of epithelial cell interactions to illuminate how epithelia are maintained throughout an organism's lifetime.

PMID:
31153058
DOI:
10.1016/j.ceb.2019.04.009

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