期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 63, 期 24, 页码 2922-2938出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-006-6258-5
关键词
liver development; Zhx2; Wnt/beta-catenin; glutamine synthetase; alpha-fetoprotein
资金
- NIDDK NIH HHS [DK51600, DK59866] Funding Source: Medline
Liver function is crucial for maintaining metabolic homeostasis in mammals. Numerous genes must be properly regulated for the liver to develop and perform a variety of activities. Several recent gene-knockout studies in mice have clarified the roles of GATA6, HNF4 alpha, and Foxa1/Foxa2 in early stages of liver formation. After the liver forms, transcriptional changes continue to occur; during the perinatal period, certain genes such as alpha-fetoprotein and H19 are silenced, others are activated, and position-dependent (or zonal) regulation is established. Zhx2 was recently identified as one factor involved in postnatal repression of a-fetoprotein and other genes. Furthermore, several studies indicate that negative regulation is involved in the zonal control of glutamine synthetase. Finally, exciting new evidence indicates that signaling through the Wnt/beta-catenin pathway is also involved in zonal regulation in the adult liver.
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