ArticleBMB reports2016
Hypoxic repression of CYP7A1 through a HIF-1α- and SHP-independent mechanism.
Article in BMB reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Exposure to Normobaric Hypoxia Combined with a Mixed Diet Contributes to Improvement in Lipid Profile in Trained Cyclists.Nutrients · 2021Trial
- A Dynamic 3D Human Liver Sinusoid Model for Mechanistic Interrogation of Fontan-Associated Liver Disease.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Review
- Transcriptome analysis of liver injury of fatty liver disease induced by ALDH2 deficiency.Scientific reports · 2025Article
- Pathogenic mechanisms and regulatory factors involved in alcoholic liver disease.Journal of translational medicine · 2023Review
- Obstructive Sleep Apnoea and Lipid Metabolism: The Summary of Evidence and Future Perspectives in the Pathophysiology of OSA-Associated Dyslipidaemia.Biomedicines · 2022Review
- Plasma Metabolic Phenotypes of HPV-Associated versus Smoking-Associated Head and Neck Cancer and Patient Survival.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2021Article
- TP53I11 suppresses epithelial-mesenchymal transition and metastasis of breast cancer cells.BMB reports · 2019Article
- Identifying the cellular location of brain cytoplasmic 200 RNA using an RNA-recognizing antibody.BMB reports · 2017Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Liver cells experience hypoxic stress when drug-metabolizing enzymes excessively consume O2 for hydroxylation. Hypoxic stress changes the transcription of several genes by activating a heterodimeric transcription factor called hypoxia-inducible factor- 1α/β (HIF-1α/β). We found that hypoxic stress (0.1% O2) decreased the expression of cytochrome P450 7A1 (CYP7A1), a rate-limiting enzyme involved in bile acid biosynthesis. Chenodeoxycholic acid (CDCA), a major component of bile acids, represses CYP7A1 by activating a transcriptional repressor named small heterodimer partner (SHP). We observed that hypoxia decreased the levels of both CDCA and SHP, suggesting that hypoxia repressed CYP7A1 without inducing SHP. The finding that overexpression of HIF-1α increased the activity of the CYP7A1 promoter suggested that hypoxia decreased the expression of CYP7A1 in a HIF-1-independent manner. Thus, the results of this study suggested that hypoxia decreased the activity of CYP7A1 by limiting its substrate O2, and by decreasing the transcription of CYP7A1. [BMB Reports 2016; 49(3): 173-178].
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