Rebecca Pennock
Human cell dedifferentiation in mesenchymal condensates through controlled autophagy
Pennock, Rebecca; Bray, Elen; Pryor, Paul; James, Sally; McKeegan, Paul; Sturmey, Roger; Genever, Paul
Authors
Elen Bray
Paul Pryor
Sally James
Paul McKeegan
Professor Roger Sturmey R.Sturmey@hull.ac.uk
Professor of Reproductive Medicine
Paul Genever
Abstract
Tissue and whole organ regeneration is a dramatic biological response to injury that occurs across different plant and animal phyla. It frequently requires the dedifferentiation of mature cells to a condensed mesenchymal blastema, from which replacement tissues develop. Human somatic cells cannot regenerate in this way and differentiation is considered irreversible under normal developmental conditions. Here, we sought to establish in vitro conditions to mimic blastema formation by generating different three-dimensional (3D) condensates of human mesenchymal stromal cells (MSCs). We identified specific 3D growth environments that were sufficient to dedifferentiate aged human MSCs to an early mesendoderm-like state with reversal of age-associated cell hypertrophy and restoration of organized tissue regenerating capacity in vivo. An optimal auophagic response was required to promote cytoplasmic remodeling, mitochondrial regression, and a bioenergetic shift from oxidative phosphorylation to anaerobic metabolism. Our evidence suggests that human cell dedifferentiation can be achieved through autonomously controlled autophagic flux.
Citation
Pennock, R., Bray, E., Pryor, P., James, S., McKeegan, P., Sturmey, R., & Genever, P. (2015). Human cell dedifferentiation in mesenchymal condensates through controlled autophagy. Scientific reports, 5(1), Article ARTN 13113. https://doi.org/10.1038/srep13113
Acceptance Date | Jul 15, 2015 |
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Online Publication Date | Aug 20, 2015 |
Publication Date | 2015-10 |
Deposit Date | Nov 18, 2015 |
Publicly Available Date | Oct 27, 2022 |
Journal | Scientific reports |
Print ISSN | 2045-2322 |
Electronic ISSN | 2045-2322 |
Publisher | Nature Publishing Group |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
Issue | 1 |
Article Number | ARTN 13113 |
DOI | https://doi.org/10.1038/srep13113 |
Keywords | Autophagy; Cell biology; Condensed mesenchymal blastema |
Public URL | https://hull-repository.worktribe.com/output/381584 |
Publisher URL | http://www.nature.com/articles/srep13113 |
Additional Information | Copy of article first published in: Scientific reports, 2015, v.5. |
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This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
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