Cited by 737Drug Transport and Resistance MechanismsLiver Disease Diagnosis and TreatmentGut microbiota and health

Suppressed hepatic bile acid signalling despite elevated production of primary and secondary bile acids in NAFLD

Jiao, Na, Baker, Susan S, Chapa-Rodriguez, Adrian, Liu, Wensheng, Nugent, Colleen A, Tsompana, Maria, Mastrandrea, Lucy, Buck, Michael J +4 more·2018·Gut

Abstract

OBJECTIVE: Bile acids are regulators of lipid and glucose metabolism, and modulate inflammation in the liver and other tissues. Primary bile acids such as cholic acid and chenodeoxycholic acid (CDCA) are produced in the liver, and converted into secondary bile acids such as deoxycholic acid (DCA) and lithocholic acid by gut microbiota. Here we investigated the possible roles of bile acids in non-alcoholic fatty liver disease (NAFLD) pathogenesis and the impact of the gut microbiome on bile acid signalling in NAFLD. DESIGN: Serum bile acid levels and fibroblast growth factor 19 (FGF19), liver gene expression profiles and gut microbiome compositions were determined in patients with NAFLD, high-fat diet-fed rats and their controls. RESULTS: -taurocholate cotransporting polypeptide and paraoxonase 1, no change in mRNA expression for small heterodimer partner and bile salt export pump, and reduced serum FGF19 were evidence of impaired FXR and fibroblast growth factor receptor 4 (FGFR4)-mediated signalling in NAFLD. Taurine and glycine metabolising bacteria were increased in the gut of patients with NAFLD, reflecting increased secondary bile acid production. Similar changes in liver gene expression and the gut microbiome were observed in high-fat diet-fed rats. CONCLUSIONS: The serum bile acid profile, the hepatic gene expression pattern and the gut microbiome composition consistently support an elevated bile acid production in NAFLD. The increased proportion of FXR antagonistic bile acid explains, at least in part, the suppression of hepatic FXR-mediated and FGFR4-mediated signalling. Our study suggests that future NAFLD intervention may target the components of FXR signalling, including the bile acid converting gut microbiome.

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Crossref · 10.1136/gutjnl-2017-314307

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Authors
Jiao, N., Baker, S. S., Chapa-Rodriguez, A., Liu, W., Nugent, C. A., Tsompana, M., Mastrandrea, L., Buck, M. J., Baker, R. D., Genco, R. J., Zhu, R., & Zhu, L.
Affiliations
  • Tongji University (CN)
  • University at Buffalo, State University of New York (US)
  • Department of Pediatrics, Digestive Diseases and Nutrition Center, The State University of New York at Buffalo, Buffalo, New York, USA
Corresponding author
  • Baker, Susan S
  • Zhu, Lixin
Venue
Gut
Publisher
BMJ
Published
2017-08-03
Volume
67
Issue
10
Pages
1881-1891
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2605955022
Cited by
737
References
50
Citations by year
2026: 81 · 2025: 112 · 2024: 128 · 2023: 105 · 2022: 93 · 2021: 83 · 2020: 68 · 2019: 44 · 2018: 17 · 2017: 4
FWCI
15.93
Type
journal article
Language
en
Open access
closed
Locations
  • Gut (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • GEM Community of Excellence, the University at Buffalo
  • the University at Buffalo Departmental Start-Up Fund
  • Natural Science Foundation of Shanghai
  • National Natural Science Foundation of China
  • the Peter and Tommy Fund, Inc., Buffalo, NY
Topics
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
non-alcoholic fatty liver disease, bile acids, bile acid signaling, farnesoid X receptor, FGFR4, FGF19, gut microbiota, secondary bile acids, deoxycholic acid, lithocholic acid, taurine metabolism, hepatic gene expression, high-fat diet
MeSH terms
Gastrointestinal Microbiome, Receptor, Farnesoid X-Activated, Animals, Bile Acids and Salts, Cholesterol 7-alpha-Hydroxylase, Female, Fibroblast Growth Factors, Humans, Male, Middle Aged, Signal Transduction, Receptors, Cytoplasmic and Nuclear, Gene Expression Profiling, Rats, Diet, High-Fat, Non-alcoholic Fatty Liver Disease

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