Cited by 21Liver physiology and pathologyOrgan Transplantation Techniques and OutcomesTissue Engineering and Regenerative Medicine

Bile duct destruction by 4,4′-diaminodiphenylmethane does not block the small hepatocyte-like progenitor cell response in retrorsine-exposed rats

Best, Hunter D., Coleman, William B.·2007·Hepatology

Abstract

Unlabelled Liver regeneration after surgical partial hepatectomy (PH) in retrorsine-exposed rats is accomplished through the outgrowth and expansion of small hepatocyte-like progenitor cells (SHPCs). The cells of origin for SHPCs and their tissue niche have not been identified. Nevertheless, some investigators have suggested that SHPCs may represent an intermediate or transitional cell type between oval cells and mature hepatocytes, rather than a distinct progenitor cell population. We investigated this possibility through the targeted elimination of oval cell proliferation secondary to bile duct destruction in retrorsine-exposed rats treated with 4,4'-diaminodiphenylmethane (DAPM). Fischer 344 rats were treated with 2 doses (30 mg/kg body weight) retrorsine (at 6 and 8 weeks of age) followed by PH 5 weeks later. Twenty-four hours before PH, select animals were given a single dose of DAPM (50 mg/kg). Treatment of rats with DAPM produced severe bile duct damage but did not block liver regeneration. Oval cells were never seen in the livers of DAPM-treated retrorsine-exposed rats after PH. Rather, liver regeneration in these rats was mediated by the proliferation of SHPCs, and the cellular response was indistinguishable from that observed in retrorsine-exposed rats after PH. SHPC clusters emerge 1 to 3 days post-PH, expand through 21 days post-PH, with normalization of the liver occurring by the end of the experimental interval. Conclusion These results provide direct evidence t…

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Crossref · 10.1002/hep.21876

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Authors
Best, H. D., & Coleman, W. B.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Coleman, William B.
Venue
Hepatology
Published
2007-11
Volume
46
Issue
5
Pages
1611-1619
ISSN
0270-9139 (ISSN-L)
OpenAlex
W1982895923
Cited by
21
References
34
Citations by year
2023: 2 · 2019: 1 · 2017: 1 · 2016: 1 · 2012: 1
FWCI
2.46
Type
journal article
Language
en
Open access
closed
Locations
  • Hepatology (publishedVersion)
  • PubMed (publishedVersion)
Funders
NIH (CA 78343, T32 ES 07017)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Surgery › Organ Transplantation Techniques and Outcomes
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
liver regeneration, partial hepatectomy, retrorsine, 4,4'-diaminodiphenylmethane, bile duct destruction, oval cells, liver progenitor cells, hepatocyte differentiation, cell of origin
MeSH terms
Aniline Compounds, Animals, Benzhydryl Compounds, Hepatectomy, Liver, Liver Regeneration, Male, Pyrrolizidine Alkaloids, Rats, Inbred F344, Stem Cells, Cell Proliferation, Rats

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