Cited by 3Hippo pathway signaling and YAP/TAZLiver physiology and pathologyDevelopmental Biology and Gene Regulation

Expression patterns of Yes-associated protein 1 in the developing mouse liver

Wei, Wei, Lotto, Jeremy, Hoodless, Pamela A.·2018·Gene Expression Patterns

Abstract

The Hippo signaling pathway regulates many cellular processes, but has been specifically associated with control organ size and tumor growth. Yes-associated protein 1 (YAP1) is a transcriptional cofactor, in the Hippo pathway, that regulates gene expression when localized in the nucleus. Elevated expression of YAP1 in adult mouse liver leads to hepatomegaly and can cause hepatocellular carcinoma; while the loss of function studies reveal its importance in regulating cholangiocyte development. Here, we report the expression of YAP1 in mouse embryonic and postnatal hepatic cells, using AFP-GFP transgenic mice to identify the hepatocyte lineage. At embryonic day (E) 8.5, YAP1 is highly expressed in the endoderm, but is not present in the nucleus. Between E9.5-12.5, hepatic cells display low levels of nuclear and non-nuclear YAP1. The nuclear expression of YAP1 is first detected in a small subset of hepatic cells starting at E13.5 when the hepatoblasts begin to differentiate into hepatocytes and cholangiocytes. At E18.5, nuclear YAP1 is nearly undetectable in hepatoblasts and hepatocytes, but enriched within the nuclei of cholangiocytes. These levels remain similar postnatally, consistent with the role of YAP1 in cholangiocyte specification and maintenance.

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Crossref · 10.1016/j.gep.2018.04.003

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Authors
Wei, W., Lotto, J., & Hoodless, P. A.
Affiliations
BC Cancer Agency (CA)
Corresponding author
Hoodless, Pamela A.
Venue
Gene Expression Patterns
Publisher
Elsevier BV
Published
2018-09
Volume
29
Pages
10-17
ISSN
1567-133X (ISSN-L)
OpenAlex
W2795563643
Cited by
3
References
37
Citations by year
2022: 1 · 2020: 2
FWCI
0.24
Type
journal article
Language
en
Open access
closed
Locations
  • Gene Expression Patterns (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Cancer Research Society (FRN 21466)
  • Canadian Institutes of Health Research (FRN 376243)
  • Natural Sciences and Engineering Research Council of Canada (FRN RGPIN-2017-04917, RGPIN-2012-418298)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
YAP, Hippo signaling pathway, liver development, hepatoblast differentiation, nuclear localization, embryonic endoderm, hepatomegaly, hepatocellular carcinoma, mouse embryo
MeSH terms
YAP-Signaling Proteins, alpha-Fetoproteins, Animals, Cell Differentiation, Cells, Cultured, Epithelial Cells, Humans, Liver, Mice, Transgenic, Phosphoproteins, Signal Transduction, Gene Expression Regulation, Developmental, Cell Cycle Proteins, Hepatocytes, Adaptor Proteins, Signal Transducing, Cell Proliferation, Green Fluorescent Proteins, Mice

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