Cited by 93Liver physiology and pathologyLiver Diseases and ImmunityDrug-Induced Hepatotoxicity and Protection

Reactive cholangiocytes differentiate into proliferative hepatocytes with efficient DNA repair in mice with chronic liver injury

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Manco, Rita, Clerbaux, Laure-Alix, Verhulst, Stefaan, Bou Nader, Myriam, Sempoux, Christine, Ambroise, Jerome, Bearzatto, Bertrand, Gala, Jean Luc +4 more·2019·Journal of Hepatology

Abstract

Background & aim Chronic liver diseases are characterized by expansion of the small immature cholangiocytes - a mechanism named ductular reaction (DR) - which have the capacity to differentiate into hepatocytes. We investigated the kinetics of this differentiation, as well as analyzing several important features of the newly formed hepatocytes, such as functional maturity, clonal expansion and resistance to stress in mice with long-term liver damage.Methods We tracked cholangiocytes using osteopontin-iCreER T2 and hepatocytes with AAV8-TBG-Cre. Mice received carbon tetrachloride (CCl 4) for >24 weeks to induce chronic liver injury. Livers were collected for the analysis of reporter proteins, cell proliferation and death, DNA damage, and nuclear ploidy; hepatocytes were also isolated for RNA sequencing.Results During liver injury we observed a transient DR and the differentiation of DR cells into hepatocytes as clones that expanded to occupy 12% of the liver parenchyma by week 8. By lineage tracing, we confirmed that these new hepatocytes derived from cholangiocytes but not from native hepatocytes. They had all the features of mature functional hepatocytes. In contrast to the exhausted native hepatocytes, these newly formed hepatocytes had higher proliferative capability, less apoptosis, a lower proportion of highly polyploid nuclei and were better at eliminating DNA damage.Conclusions In chronic liver injury, DR cells differentiate into stress-resistant hepatocytes that repopulate the liver. The process might account for the observed parenchymal reconstitution in livers of patients with advanced-stage hepatitis and could be a target for regenerative purposes.Lay summary During chronic liver disease, while native hepatocytes are exhausted and genetically unstable, a subset of cholangiocytes clonally expand to differentiate into young, functional and robust hepatocytes. This cholangiocyte cell population is a promising target for regenerative therapies in patients with chronic liver insufficiency.

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Crossref · 10.1016/j.jhep.2019.02.003

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  1. Roskams TA, Theise ND, Balabaud C, et al. Nomenclature of the Finer Branches of the Biliary. Hepatology 2004;39:1739-1745.

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Authors
Manco, R., Clerbaux, L.-A., Verhulst, S., Bou Nader, M., Sempoux, C., Ambroise, J., Bearzatto, B., Gala, J. L., Horsmans, Y., van Grunsven, L., Desdouets, C., & Leclercq, I.
Affiliations
  • UCLouvain (BE)
  • Vrije Universiteit Brussel (BE)
  • Centre Hospitalier Universitaire Vaudois (CH)
  • Cliniques Universitaires Saint-Luc (BE)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Leclercq, Isabelle
Venue
Journal of Hepatology
Publisher
Elsevier BV
Published
2019-06
Volume
70
Issue
6
Pages
1180-1191
ISSN
0168-8278 (ISSN-L)
OpenAlex
W2915464486
Cited by
92
References
49
Citations by year
2026: 5 · 2025: 21 · 2024: 12 · 2023: 11 · 2022: 14 · 2021: 13 · 2020: 10 · 2019: 6
FWCI
6.85
Type
journal article
Language
en
Open access
Locations
  • Journal of Hepatology (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)) (submittedVersion, other-oa)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
  • VUBIR (Vrije Universiteit Brussel) (submittedVersion)
Funders
  • Belgian Federal Science Policy Office
  • Scientific Medical Research
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Hepatology › Liver Diseases and Immunity
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
Keywords
cholangiocytes, ductular reaction, hepatocyte differentiation, chronic liver injury, DNA repair, clonal expansion, hepatocyte regeneration, liver regeneration, hepatocyte proliferation, hepatocyte apoptosis, DNA ploidy, lineage tracing, regenerative therapy, DNA damage
MeSH terms
Animals, Bile Ducts, Carbon Tetrachloride, Cell Differentiation, Chronic Disease, DNA Repair, Liver Neoplasms, Polyploidy, Precancerous Conditions, Hepatocytes, Cell Proliferation, Mice, Chemical and Drug Induced Liver Injury

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