Cited by 235Liver physiology and pathologyLiver Disease Diagnosis and TreatmentTissue Engineering and Regenerative Medicine

Disruption of Hepatic Adipogenesis Is Associated With Impaired Liver Regeneration in Mice

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Shteyer, Eyal, Liao, Yunjun, Muglia, Louis J., Hruz, Paul W., Rudnick, David A.·2004·Hepatology

Abstract

The liver responds to injury with regulated tissue regeneration. During early regeneration, the liver accumulates fat. Neither the mechanisms responsible for nor the functional significance of this transient steatosis have been determined. In this study, we examined patterns of gene expression associated with hepatic fat accumulation in regenerating liver and tested the hypothesis that disruption of hepatic fat accumulation would be associated with impaired hepatic regeneration. First, microarray–based gene expression analysis revealed that several genes typically induced during adipocyte differentiation were specifically upregulated in the regenerating liver prior to peak hepatocellular fat accumulation. These observations suggest that hepatic fat accumulation is specifically regulated during liver regeneration. Next, 2 methods were employed to disrupt hepatocellular fat accumulation in the regenerating liver. Because exogenous leptin supplementation reverses hepatic steatosis in leptin–deficient mice, the effects of leptin supplementation on liver regeneration in wild–type mice were examined. The data showed that leptin supplementation resulted in suppression of hepatocellular fat accumulation and impairment of hepatocellular proliferation during liver regeneration. Second, because glucocorticoids regulate cellular fat accumulation during adipocyte differentiation, the effects of hepatocyte–specific disruption of the glucocorticoid receptor were similarly evaluated. The results showed that hepatic fat accumulation and hepatocellular proliferation were also suppressed in mice with liver specific disruption of glucocorticoid receptor. In conclusion , suppression of hepatocellular fat accumulation is associated with impaired hepatocellular proliferation following partial hepatectomy, indicating that hepatocellular fat accumulation is specifically regulated during and may be essential for normal liver regeneration. (Hepatology 2004;40:1322-1332.)

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Research works printed but not linked: 2

  1. Diehl AM, Rai R. Liver regeneration. In: Schiff R, Sorrell MF, Maddrey WC, eds. Schiff's Diseases of the Liver. Philadelphia, PA: Lippincott- Raven, 1999:39 -54.
  2. Ringold GM, Chapman AB, Knight DM, Torti FM. Hormonal control of adipogenesis. Ann N Y Acad Sci 1986;478:109 -119.

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Authors
Shteyer, E., Liao, Y., Muglia, L. J., Hruz, P. W., & Rudnick, D. A.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Rudnick, David A.
Venue
Hepatology
Published
2004-12
Volume
40
Issue
6
Pages
1322-1332
ISSN
0270-9139 (ISSN-L)
OpenAlex
W2013853905
Cited by
234
References
53
Citations by year
2026: 8 · 2025: 7 · 2024: 7 · 2023: 12 · 2022: 13 · 2021: 12 · 2020: 13 · 2019: 9 · 2018: 14 · 2017: 11 · 2016: 12 · 2015: 11 · 2014: 4 · 2013: 14 · 2012: 18
FWCI
5.61
Type
journal article
Language
en
Open access
Locations
  • Hepatology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Alvin J. Siteman Cancer Center
  • National Institutes of Health (1p30hd033688-01, 1r03dk064653-01, DK064572)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30 DK-52574, DK-02900, DK64653, R01DK064572, DK-064572, K08DK002900, P30DK052574)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD 33688)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
liver regeneration, hepatic steatosis, leptin, glucocorticoid receptor, hepatocyte proliferation, partial hepatectomy, gene expression, ob/ob mice
MeSH terms
Animals, Cell Division, Fats, Hepatectomy, Liver, Liver Regeneration, Male, Mice, Inbred C57BL, Receptors, Glucocorticoid, Oligonucleotide Array Sequence Analysis, Leptin, Hepatocytes, Mice

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