Cited by 119Wnt/β-catenin signaling in development and cancerLiver physiology and pathologyColorectal Cancer Treatments and Studies

β-Catenin is critical for early postnatal liver growth

Apte, Udayan, Zeng, Gang, Thompson, Michael D., Muller, Peggy, Micsenyi, Amanda, Cieply, Benjamin, Kaestner, Klaus H., Monga, Satdarshan P. S.·2007·American Journal of Physiology-Gastrointestinal and Liver Physiology

Abstract

The Wnt/beta-catenin pathway plays an important role in embryonic liver development, morphogenesis, and organogenesis. Here, we report on the activation of beta-catenin during early postnatal liver growth. Modulation of beta-catenin expression was studied in CD-1 mice livers over a time course of 0 to 30 postnatal days (PD) and 3 mo. Increases in total and active beta-catenin were observed in developing livers from PD 5 to 20. A concomitant increase in the beta-catenin-transcription factor (TCF) complex along with nuclear and cytoplasmic beta-catenin was also evident, which coincided with ongoing hepatocyte proliferation by PCNA immunohistochemistry. This activation of beta-catenin was multifactorial, including cyclical inhibition of glycogen synthase kinase-3beta, suppression of casein kinase-IIalpha, and a transient increase in beta-catenin gene expression. Coprecipitation experiments revealed the formation of the beta-catenin-cadherin complex at PD 5, whereas adequate beta-catenin-c-Met complex at the hepatocyte membrane did not form until PD 20, which might be contributing to the free beta-catenin pool during early postnatal growth. Furthermore, beta-catenin liver-specific knockout mice exhibited smaller livers at PD 30, secondary to diminished hepatocyte proliferation. These data indicate that the activation of beta-catenin is critical for early postnatal liver growth and development.

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Crossref · 10.1152/ajpgi.00359.2006

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Authors
Apte, U., Zeng, G., Thompson, M. D., Muller, P., Micsenyi, A., Cieply, B., Kaestner, K. H., & Monga, S. P. S.
Affiliations
University of Pittsburgh (US)
Venue
American Journal of Physiology-Gastrointestinal and Liver Physiology
Published
2007-06
Volume
292
Issue
6
Pages
G1578-G1585
ISSN
  • 0193-1857 (ISSN-L)
  • 1522-1547
OpenAlex
W2144573829
Cited by
119
References
0
Citations by year
2025: 1 · 2024: 3 · 2023: 2 · 2022: 6 · 2021: 6 · 2020: 1 · 2019: 2 · 2018: 9 · 2017: 11 · 2016: 4 · 2015: 7 · 2014: 3 · 2013: 7 · 2012: 8
FWCI
5.38
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Gastrointestinal and Liver Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK062277)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Treatments and Studies
Keywords
β-catenin, Wnt/β-catenin signaling, hepatocyte proliferation, liver development, glycogen synthase kinase-3β, casein kinase 2, liver-specific knockout mice
MeSH terms
Glycogen Synthase Kinase 3 beta, Animals, Cell Membrane, Liver, Mice, Inbred ICR, RNA, Messenger, Time Factors, Signal Transduction, Cadherins, Mice, Knockout, Gene Expression Regulation, Developmental, Proliferating Cell Nuclear Antigen, Proto-Oncogene Proteins c-met, Hepatocytes, Glycogen Synthase Kinase 3, Casein Kinase II, Cell Proliferation, Wnt Proteins, beta Catenin, Mice, TCF Transcription Factors

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