Please use this identifier to cite or link to this item: https://doi.org/10.1371/journal.pgen.1009084
Title: Loss of hepatocyte cell division leads to liver inflammation and fibrosis
Authors: Dewhurst, M.R.
Ow, J.R.
Zafer, G.
van Hul, N.K.M.
Wollmann, H.
Bisteau, X.
Brough, D.
Choi, H. 
Kaldis, P. 
Issue Date: 2020
Publisher: Public Library of Science
Citation: Dewhurst, M.R., Ow, J.R., Zafer, G., van Hul, N.K.M., Wollmann, H., Bisteau, X., Brough, D., Choi, H., Kaldis, P. (2020). Loss of hepatocyte cell division leads to liver inflammation and fibrosis. PLoS Genetics 16 (11) : e1009084. ScholarBank@NUS Repository. https://doi.org/10.1371/journal.pgen.1009084
Rights: Attribution 4.0 International
Abstract: The liver possesses a remarkable regenerative capacity based partly on the ability of hepatocytes to re-enter the cell cycle and divide to replace damaged cells. This capability is substantially reduced upon chronic damage, but it is not clear if this is a cause or consequence of liver disease. Here, we investigate whether blocking hepatocyte division using two different mouse models affects physiology as well as clinical liver manifestations like fibrosis and inflammation. We find that in P14 Cdk1Liv-/- mice, where the division of hepatocytes is abolished, polyploidy, DNA damage, and increased p53 signaling are prevalent. Cdk1Liv-/- mice display classical markers of liver damage two weeks after birth, including elevated ALT, ALP, and bilirubin levels, despite the lack of exogenous liver injury. Inflammation was further studied using cytokine arrays, unveiling elevated levels of CCL2, TIMP1, CXCL10, and IL1-Rn in Cdk1Liv-/- liver, which resulted in increased numbers of monocytes. Ablation of CDK2-dependent DNA re-replication and polyploidy in Cdk1Liv-/- mice reversed most of these phenotypes. Overall, our data indicate that blocking hepatocyte division induces biological processes driving the onset of the disease phenotype. It suggests that the decrease in hepatocyte division observed in liver disease may not only be a consequence of fibrosis and inflammation, but also a pathological cue. Copyright: © 2020 Dewhurst et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Source Title: PLoS Genetics
URI: https://scholarbank.nus.edu.sg/handle/10635/199676
ISSN: 1553-7390
DOI: 10.1371/journal.pgen.1009084
Rights: Attribution 4.0 International
Appears in Collections:Elements
Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_1371_journal_pgen_1009084.pdf6.06 MBAdobe PDF

OPEN

NoneView/Download

SCOPUSTM   
Citations

10
checked on Sep 30, 2022

Page view(s)

93
checked on Oct 6, 2022

Download(s)

2
checked on Oct 6, 2022

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons