Reprogramming cellular identity during intestinal regeneration
- PMID: 34062491
- DOI: 10.1016/j.gde.2021.05.005
Reprogramming cellular identity during intestinal regeneration
Abstract
The intestine is a vital organ mediating absorption of nutrients and water. Following tissue damage, the intestine mounts a remarkable regenerative response by reprogramming cellular identity to facilitate reinstatement of homeostasis. Here we review recent advances within intestinal regenerative biology and the emerging concept of fetal-like reprogramming, in which the adult intestinal epithelium transiently enters a repair-associated state reminiscent of ontologically pre-existing stages. We focus on molecular mechanisms governing reprogramming of cellular identity via epithelial-mesenchymal crosstalk, and how novel approaches in organoid technologies enable identification and characterisation of cell-autonomous repair responses within epithelial cells. Transitioning from the single-cell level to tissue scale, we discuss clonal selection following regeneration and associated pathological repurcussions such as cancer and chronic inflammatory diseases.
Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved.
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