Cited by 236Liver physiology and pathologyMesenchymal stem cell researchTissue Engineering and Regenerative Medicine

Broad Distribution of Hepatocyte Proliferation in Liver Homeostasis and Regeneration

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Chen, Feng, Jimenez, Robert J., Sharma, Khushbu, Luu, Hubert Y., Hsu, Bernadette Y., Ravindranathan, Ajay, Stohr, Bradley A., Willenbring, Holger·2020·Cell Stem Cell

Abstract

Hepatocyte proliferation is the principal mechanism for generating new hepatocytes in liver homeostasis and regeneration. Recent studies have suggested that this ability is not equally distributed among hepatocytes but concentrated in a small subset of hepatocytes acting like stem cells, located around the central vein or distributed throughout the liver lobule and exhibiting active WNT signaling or high telomerase activity, respectively. These findings were obtained by utilizing components of these growth regulators as markers for genetic lineage tracing. Here, we used random lineage tracing to localize and quantify clonal expansion of hepatocytes in normal and injured liver. We found that modest proliferation of hepatocytes distributed throughout the lobule maintains the hepatocyte mass and that most hepatocytes proliferate to regenerate it, with diploidy providing a growth advantage over polyploidy. These results show that the ability to proliferate is broadly distributed among hepatocytes rather than limited to a rare stem cell-like population.

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Crossref · 10.1016/j.stem.2019.11.001

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  • Hepatocytes do not proliferate equally over time, as results obtained via three independent experimental approaches have led to the same conclusion, namely that zone 2 hepatocytes proliferate more than hepatocytes from the other zones.

    “Nevertheless, hepatocytes do not proliferate equally over time, as results obtained via three independent experimental approaches have led to the same conclusion, namely that zone 2 hepatocytes proliferate more than hepatocytes from the other zones.75,86,88”

    From Distinct hepatocyte identities in liver homeostasis and regeneration (2023) · cites this paper as [88]

    The Discussion (page unavailable) reports proliferation throughout the normal liver lobule, with a slight predominance in the midlobular zone, supporting the zone 2 comparison in that setting. It does not establish that three independent experimental approaches reached that conclusion, and the Results (page unavailable) report uniform proliferation across zones after repeated CCl4 injury. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Injury to zone 1 by allyl alcohol injection or DDC diet was compensated by proliferation of hepatocytes in zones 2 and 3.

    “Additionally, injury to zone 1 by allyl alcohol injection or 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) diet was compensated by proliferation of hepatocytes in zones 2 and 3.85,86,88”

    From Distinct hepatocyte identities in liver homeostasis and regeneration (2023) · cites this paper as [88]

    The Results report that allyl alcohol caused periportal injury and that hepatocytes both adjacent to and farther from the injury proliferated. This supports the allyl-alcohol portion, but the cited paper does not report DDC-diet injury or explicitly identify the compensating hepatocytes as being in both zones 2 and 3. Page numbers were not available in our copy. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Recent studies have demonstrated that hepatocytes are primarily maintained by the proliferation of pre-existing hepatocytes during liver homeostasis and regeneration.

    “recent studies have demonstrated that hepatocytes are primarily maintained by the proliferation of pre-existing hepatocytes during liver homeostasis and regeneration14–19”

    From Multimodal decoding of human liver regeneration (2024) · cites this paper as [14]

  • During homeostasis, zone 2 hepatocytes rather than a defined subpopulation seem to have increased proliferative potential.

    “During homeostasis, zone 2 hepatocytes rather than a defined subpopulation seem to have increased proliferative potential.”
  • Hepatocyte renewal is not driven by zone 3, no hepatocytes formed particularly large clones, and hepatocyte proliferation was distributed throughout the lobule with larger hepatocyte clones more frequently found in zone 2.

    “3D imaging of labelled cells and their progeny showed that hepatocyte renewal is not driven by zone 3, no hepatocytes formed particularly large clones, and hepatocyte proliferation was distributed throughout the lobule with larger hepatocyte clones more frequently found in zone 2.88”

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Authors
Chen, F., Jimenez, R. J., Sharma, K., Luu, H. Y., Hsu, B. Y., Ravindranathan, A., Stohr, B. A., & Willenbring, H.
Affiliations
University of California, San Francisco (US)
Corresponding author
  • Chen, Feng
  • Willenbring, Holger
Venue
Cell Stem Cell
Publisher
Elsevier BV
Published
2020-01
Volume
26
Issue
1
Pages
27-33.e4
ISSN
  • 1875-9777 (ISSN-L)
  • 1934-5909
OpenAlex
W2996029077
Cited by
236
References
21
Citations by year
2026: 15 · 2025: 32 · 2024: 34 · 2023: 51 · 2022: 34 · 2021: 44 · 2020: 26
FWCI
16.58
Type
journal article
Language
en
Open access
Locations
  • Cell stem cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Eli and Edythe Broad Foundation (R01 AA026578, CIRM DISC2-10088)
  • California Institute of Regenerative Medicine
  • National Institutes of Health (P30 DK026743, R01 AA026578, T32 DK060414)
  • Novartis
  • Jane Coffin Childs Memorial Fund for Medical Research
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
hepatocyte proliferation, liver homeostasis, liver regeneration, clonal expansion, Wnt signaling, telomerase, polyploidy, diploidy, liver lobule
MeSH terms
Homeostasis, Liver, Liver Regeneration, Hepatocytes, Cell Proliferation

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