Cited by 74Liver physiology and pathologyTGF-β signaling in diseasesDrug-Induced Hepatotoxicity and Protection

Overexpression of Activin βC or Activin βE in the Mouse Liver Inhibits Regenerative Deoxyribonucleic Acid Synthesis of Hepatic Cells

Chabicovsky, Monika, Herkner, Kurt, Rossmanith, Walter·2003·Endocrinology

Abstract

Activins are dimeric growth factors composed of beta-subunits, four of which have been isolated so far. Whereas activin beta(A) and beta(B) are expressed in many tissues, the expression of activin beta(C) and beta(E) is confined to the liver. To date no biological role or activity has been assigned to activins formed from beta(C) or beta(E) subunits (activin C and E). Because activin A (beta(A)beta(A)), among its various functions in other tissues, appears to be a negative regulator of liver growth, we hypothesized a similar role for activin C and E. Using a nonviral gene transfer system we specifically delivered genes encoding activin beta(C), beta(E), or beta(A) to the mouse liver. The mRNA analysis and reporter gene coexpression both indicated a reproducible temporal and spatial transgene expression pattern. The effects of activin overexpression were studied in the context of a regenerative proliferation of hepatic cells, a result of the tissue damage associated with the hydrodynamics based gene transfer procedure. Activin beta(C), beta(E), or beta(A) expression, all temporarily inhibited regenerative DNA synthesis of hepatocytes and nonparenchymal cells, though to a varying degree. This first report of a biological activity of activin C and E supports an involvement in liver tissue homeostasis and further emphasizes the role of the growing activin family in liver physiology.

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Crossref · 10.1210/en.2003-0388

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  • Circulating levels of activin-E are elevated in high-fat diet-fed mice and are thought to contribute to resistance to body weight gain.

    “Furthermore, circulating levels of activin-E are elevated in high-fat diet-fed mice and are thought to contribute to resistance to body weight gain [28,30].”
  • Activin-E is expressed and secreted primarily by the liver, unlike other activins that are expressed throughout the body.

    “Activin-E (also called inhibin subunit beta E) was recently identified in humans and rodents and, unlike other activins that are expressed throughout the body, activin-E is expressed and secreted primarily by the liver [27,28].”

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Research works printed but not linked: 2

  1. Vejda S 2002 Characterization of activin C and E, two liver-specific members of the activin family. Vienna, Austria: University of Vienna; PhD thesis
  2. Popper H 1988 Hepatocellular degeneration and death. In: Arias IM, Jakoby WB, Popper H, Schachter D, Shafritz DA, eds. The liver. biology and patho- biology. New York: Raven Press; 1087-1103

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Authors
Chabicovsky, M., Herkner, K., & Rossmanith, W.
Affiliations
  • University of Vienna (AT)
  • Ludwig Boltzmann Institute for Pediatric Endocrinology and Immunology (K.H.), 1090 Vienna, Austria
Corresponding author
Rossmanith, Walter
Venue
Endocrinology
Published
2003-08-01
Volume
144
Issue
8
Pages
3497-3504
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2054684099
Cited by
74
References
47
Citations by year
2025: 3 · 2024: 5 · 2023: 3 · 2022: 2 · 2021: 2 · 2020: 1 · 2019: 2 · 2018: 3 · 2017: 1 · 2016: 1 · 2015: 3 · 2013: 1 · 2012: 2
FWCI
4.13
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
Keywords
activin, liver regeneration, hepatocyte proliferation, DNA synthesis, hydrodynamic gene transfer, transgene expression, non-parenchymal liver cells, growth factor overexpression
MeSH terms
Animals, DNA, Homeostasis, Liver, Liver Regeneration, Male, Mice, Inbred BALB C, RNA, Messenger, Transfection, Gene Expression, Inhibin-beta Subunits, Mice, Rats

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