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A putative role of micro RNA in regulation of cholesterol 7alpha-hydroxylase expression in human hepatocytes.

Cholesterol 7alpha-hydroxylase (CYP7A1) plays a critical role in regulation of bile acid synthesis in the liver. CYP7A1 mRNAs have very short half-lives, and bile acids destabilize CYP7A1 mRNA via the 3'-untranslated region (3'-UTR). However, the…

A Prospero-related homeodomain protein is a novel co-regulator of hepatocyte nuclear factor 4alpha that regulates the cholesterol 7alpha-hydroxylase gene.

Prox1, an early specific marker for developing liver and pancreas in foregut endoderm has recently been shown to interact with alpha-fetoprotein transcription factor and repress cholesterol 7alpha-hydroxylase (CYP7A1) gene transcription. Using a…

Tags: *Gene Expression Regulation, 2006, Aged, Amino Acid Motifs, Bile Acids and Salts/metabolism, Cell Line, Cell Nucleus/metabolism, Cells, Chiang John Y L, Cholesterol 7-alpha-Hydroxylase/*chemistry/*genetics, Cultured/metabolism, Department of Integrative Medical Sciences, Enzymologic, Female, Genes, Genetic, Gluconeogenesis, Glutathione Transferase/metabolism, Hepatocyte Nuclear Factor 4/metabolism/*physiology, Hepatocytes/metabolism, Homeodomain Proteins/metabolism/*physiology, Humans, Immunoprecipitation, Li Tiangang, Liver/metabolism, Luciferases/metabolism, Male, Messenger/metabolism, Middle Aged, NEOMED College of Medicine, Phosphoenolpyruvate Carboxykinase (ATP)/metabolism, Plasmids/metabolism, Protein Structure, Reporter, Response Elements, Reverse Transcriptase Polymerase Chain Reaction, RNA, Small Interfering/metabolism, Song Kwang-Hoon, Tertiary, The Journal of biological chemistry, Time Factors, Transcription, Transcriptional Activation, Transfection, Tumor Suppressor Proteins, Two-Hybrid System Techniques

Bile acids activate fibroblast growth factor 19 signaling in human hepatocytes to inhibit cholesterol 7alpha-hydroxylase gene expression.

UNLABELLED: Mouse fibroblast growth factor 15 (FGF15) and human ortholog FGF19 have been identified as the bile acid-induced intestinal factors that mediate bile acid feedback inhibition of cholesterol 7alpha-hydroxylase gene (C YP7A1) transcription…

Tags: 2009, Butadienes/pharmacology, Carcinoma, Cell Line, Chenodeoxycholic Acid/*pharmacology, Chiang John Y L, Cholesterol 7-alpha-Hydroxylase/*biosynthesis, Cytoplasmic and Nuclear/metabolism/physiology, Department of Integrative Medical Sciences, DNA-Binding Proteins/metabolism, Fibroblast Growth Factor, Fibroblast Growth Factors/drug effects/*physiology, Gene Expression/drug effects, Hepatocellular/metabolism, Hepatocytes/metabolism, Hepatology (Baltimore, Md.), Humans, Isoxazoles/pharmacology, Li Tiangang, Mitogen-Activated Protein Kinase 1/metabolism, Mitogen-Activated Protein Kinase 3/metabolism, NEOMED College of Medicine, Nitriles/pharmacology, Owsley Erika, Receptor, Receptors, Signal Transduction/drug effects, Song Kwang-Hoon, Strom Stephen, Transcription Factors/metabolism, Tumor, Type 4/antagonists & inhibitors

Hepatocyte growth factor signaling pathway inhibits cholesterol 7alpha-hydroxylase and bile acid synthesis in human hepatocytes.

UNLABELLED: Bile acid synthesis in the liver is regulated by the rate-limiting enzyme cholesterol 7alpha-hydroxylase (CYP7A1). Transcription of the CYP7A1 gene is inhibited by bile acids and cytokines. The rate of bile acid synthesis is reduced…

Tags: 2007, Bile Acids and Salts/*biosynthesis, Cells, Chiang John Y L, Cholesterol 7-alpha-Hydroxylase/*biosynthesis, Cultured, Department of Integrative Medical Sciences, Ellis Ewa, Hepatocyte Growth Factor/*metabolism, Hepatocytes/*metabolism, Hepatology (Baltimore, Md.), Humans, NEOMED College of Medicine, Signal Transduction, Song Kwang-Hoon, Strom Stephen

Glucagon and cAMP inhibit cholesterol 7alpha-hydroxylase (CYP7A1) gene expression in human hepatocytes: discordant regulation of bile acid synthesis and gluconeogenesis.

The gene encoding cholesterol 7alpha-hydroxylase (CYP7A1) is tightly regulated to control bile acid synthesis and maintain lipid homeostasis. Recent studies in mice suggest that bile acid synthesis is regulated by the fasted-to-fed cycle, and fasting…

Browse Items (5 total)

A putative role of micro RNA in regulation of cholesterol 7alpha-hydroxylase expression in human hepatocytes.

A Prospero-related homeodomain protein is a novel co-regulator of hepatocyte nuclear factor 4alpha that regulates the cholesterol 7alpha-hydroxylase gene.

Bile acids activate fibroblast growth factor 19 signaling in human hepatocytes to inhibit cholesterol 7alpha-hydroxylase gene expression.

Hepatocyte growth factor signaling pathway inhibits cholesterol 7alpha-hydroxylase and bile acid synthesis in human hepatocytes.

Glucagon and cAMP inhibit cholesterol 7alpha-hydroxylase (CYP7A1) gene expression in human hepatocytes: discordant regulation of bile acid synthesis and gluconeogenesis.