Cited by 42Liver physiology and pathologyDrug-Induced Hepatotoxicity and ProtectionLiver Disease Diagnosis and Treatment

Loss of hepatocyte cell division leads to liver inflammation and fibrosis

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Dewhurst, Matthew R., Ow, Jin Rong, Zafer, Gözde, van Hul, Noémi K. M., Wollmann, Heike, Bisteau, Xavier, Brough, David, Choi, Hyungwon +1 more·2020·PLOS Genetics

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.

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Crossref · 10.1371/journal.pgen.1009084

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  • In the absence of a capacity for cell division, fibrosis becomes a mode of tissue repair and leads to tissue scarring.

    “In the absence of a capacity for cell division, fibrosis becomes a mode of tissue repair and leads to tissue scarring (52, 53).”

    From Wnt signaling regulates hepatocyte cell division by a transcriptional repressor cascade (2022) · cites this paper as [52]

    The Results (page not provided) report elevated liver fibrosis in mice whose hepatocytes cannot divide, and the Discussion (page not provided) describes a pathway from impaired division to fibrosis. The paper does not establish that fibrosis serves as a mode of tissue repair when cells cannot divide generally, or explicitly describe the resulting fibrosis as tissue scarring. (LLM, conf=0.84)

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Authors
Dewhurst, M. R., Ow, J. R., Zafer, G., van Hul, N. K. M., Wollmann, H., Bisteau, X., Brough, D., Choi, H., & Kaldis, P.
Affiliations
  • Agency for Science, Technology and Research (SG)
  • Manchester Academic Health Science Centre (GB)
Corresponding author
Kaldis, Philipp
Venue
PLOS Genetics
Published
2020-11-04
Volume
16
Issue
11
Pages
e1009084
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W3082824354
Cited by
42
References
89
Citations by year
2026: 3 · 2025: 4 · 2024: 5 · 2023: 11 · 2022: 10 · 2021: 8 · 2020: 1
FWCI
4.41
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • National University of Singapore (submittedVersion, cc-by)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Lund University Publications (Lund University) (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
  • National Research Foundation
  • Agency for Science, Technology and Research
  • National Research Foundation Singapore (NRF2016, NRF2016-CRP001-103)
  • Stiftelsen för Strategisk Forskning (2009-1039, Dnr 2009-1039, Dnr IRC15‐0067, IRC15-0067)
  • Lunds Universitet (2009-1039, IRC15-0067)
  • Vetenskapsrådet (2009-1039, IRC15-0067, Dnr2009‐1039, Dnr IRC15-0067)
  • Medical Research Council
  • National Medical Research Council (NMRC/CBRG/0091/2015, CBRG/0091/2015)
  • Medicinska Fakulteten, Lunds Universitet
  • Institute of Molecular and Cell Biology
  • Biomedical Research Council (1231AFG031)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
Keywords
liver regeneration, liver fibrosis, liver inflammation, CDK2, polyploidy, DNA re-replication, p53 pathway, DNA damage, monocytes, cytokines, hepatocyte cell cycle
MeSH terms
Animals, Cell Cycle, Cell Division, Disease Models, Animal, Fibrosis, Hepatitis, Inflammation, Liver, Liver Cirrhosis, Male, Signal Transduction, CDC2 Protein Kinase, Cytokines, Apoptosis, Mice, Knockout, Hepatocytes, Cyclin-Dependent Kinase 2, Mice

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