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Biogeography of microbial bile acid transformations along the murine gut

Journal Article · · Journal of Lipid Research

Bile acids, which are synthesized from cholesterol by the liver, are chemically transformed along the intestinal tract by the gut microbiota, and the products of these transformations signal through host receptors, affecting overall host health. These transformations include bile acid deconjugation, oxidation, and 7α-dehydroxylation. An understanding of the biogeography of bile acid transformations in the gut is critical because deconjugation is a prerequisite for 7α-dehydroxylation and because most gut microorganisms harbor bile acid transformation capacity. Here, we used a coupled metabolomic and metaproteomic approach to probe in vivo activity of the gut microbial community in a gnotobiotic mouse model. Results revealed the involvement of Clostridium scindens in 7α-dehydroxylation, of the genera Muribaculum and Bacteroides in deconjugation, and of six additional organisms in oxidation (the genera Clostridium, Muribaculum, Bacteroides, Bifidobacterium, Acutalibacter, and Akkermansia). Furthermore, the bile acid profile in mice with a more complex microbiota, a dysbiosed microbiota, or no microbiota was considered. For instance, conventional mice harbor a large diversity of bile acids, but treatment with an antibiotic such as clindamycin results in the complete inhibition of 7α-dehydroxylation, underscoring the strong inhibition of organisms that are capable of carrying out this process by this compound. Finally, a comparison of the hepatic bile acid pool size as a function of microbiota revealed that a reduced microbiota affects host signaling but not necessarily bile acid synthesis. In this study, bile acid transformations were mapped to the associated active microorganisms, offering a systematic characterization of the relationship between microbiota and bile acid composition.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE; Swiss National Science Foundation (SNSF)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1813254
Journal Information:
Journal of Lipid Research, Journal Name: Journal of Lipid Research Journal Issue: 11 Vol. 61; ISSN 0022-2275
Publisher:
American Society for Biochemistry and Molecular BiologyCopyright Statement
Country of Publication:
United States
Language:
English

References (62)

The Continuing Importance of Bile Acids in Liver and Intestinal Disease journal December 1999
Structural and functional characterization of BaiA, an enzyme involved in secondary bile acid synthesis in human gut microbe journal October 2013
Review: Bacterial transformations of bile acids journal September 2005
Dehydroxylation of cholic acid at C12 and epimerization at C5 and C7 by Bacteroides species journal October 1984
Specificity of bile salt sulfatase activity in man, mouse and rat intestinal microflora journal April 1984
Side chain conjugation prevents bacterial 7-dehydroxylation of bile acids. journal July 1990
The identification of microbial metabolites of sulfolithocholic acid. journal August 1980
Degradation of steroids in the human gut journal June 1983
Endogenous Bile Acids Are Ligands for the Nuclear Receptor FXR/BAR journal May 1999
Clostridium scindens baiCD and baiH genes encode stereo-specific 7α/7β-hydroxy-3-oxo-Δ4-cholenoic acid oxidoreductases☆ journal January 2008
Interspecies Competition Impacts Targeted Manipulation of Human Gut Bacteria by Fiber-Derived Glycans journal September 2019
The Gut Microbiome: Connecting Spatial Organization to Function journal April 2017
Gut Microbiota Regulates Bile Acid Metabolism by Reducing the Levels of Tauro-beta-muricholic Acid, a Naturally Occurring FXR Antagonist journal February 2013
Intestinal Crosstalk between Bile Acids and Microbiota and Its Impact on Host Metabolism journal July 2016
Faster SEQUEST Searching for Peptide Identification from Tandem Mass Spectra journal September 2011
Rapid and Accurate Peptide Identification from Tandem Mass Spectra journal May 2008
Precision microbiome reconstitution restores bile acid mediated resistance to Clostridium difficile journal October 2014
Microbiome remodelling leads to inhibition of intestinal farnesoid X receptor signalling and decreased obesity journal September 2013
Signals from the gut microbiota to distant organs in physiology and disease journal October 2016
moFF: a robust and automated approach to extract peptide ion intensities journal November 2016
Target-decoy search strategy for increased confidence in large-scale protein identifications by mass spectrometry journal February 2007
Semi-supervised learning for peptide identification from shotgun proteomics datasets journal October 2007
The Mouse Intestinal Bacterial Collection (miBC) provides host-specific insight into cultured diversity and functional potential of the gut microbiota journal August 2016
Genome-guided design of a defined mouse microbiota that confers colonization resistance against Salmonella enterica serovar Typhimurium journal November 2016
Gut biogeography of the bacterial microbiota journal October 2015
Global chemical effects of the microbiome include new bile-acid conjugations journal February 2020
Systemic gut microbial modulation of bile acid metabolism in host tissue compartments journal September 2010
Lithocholic Acid Decreases Expression of Bile Salt Export Pump through Farnesoid X Receptor Antagonist Activity journal August 2002
Consequences of bile salt biotransformations by intestinal bacteria journal January 2016
In vitro and in vivo characterization of Clostridium scindens bile acid transformations journal December 2018
DAnTE: a statistical tool for quantitative analysis of -omics data journal May 2008
Community-associated Clostridium difficile infection and antibiotics: a meta-analysis journal April 2013
Antibiotics and hospital-acquired Clostridium difficile infection: update of systematic review and meta-analysis journal December 2013
Bile Acid Sulfation: A Pathway of Bile Acid Elimination and Detoxification journal January 2009
Bile acids and the gut microbiome journal January 2014
Absence of Cecal Secondary Bile Acids in Gnotobiotic Mice Associated with Two Human Intestinal Bacteria with the Ability to Dehydroxylate Bile Acids In Vitro journal September 1999
Anaerobic, bile acid Transforming Microorganisms in rat Intestinal Content journal July 1968
Importance of Large Intestine in Regulating Bile Acids and Glucagon-Like Peptide-1 in Germ-Free Mice journal July 2015
Bile Acids: Natural Ligands for an Orphan Nuclear Receptor journal May 1999
Meta-Analysis of Antibiotics and the Risk of Community-Associated Clostridium difficile Infection journal March 2013
Clostridium scindens ATCC 35704: Integration of Nutritional Requirements, the Complete Genome Sequence, and Global Transcriptional Responses to Bile Acids journal February 2019
Metabolism of Oxo-Bile Acids and Characterization of Recombinant 12α-Hydroxysteroid Dehydrogenases from Bile Acid 7α-Dehydroxylating Human Gut Bacteria journal May 2018
Construction and Optimization of a Heterologous Pathway for Protocatechuate Catabolism in Escherichia coli Enables Bioconversion of Model Aromatic Compounds journal July 2017
Transformation of bile acids by Eubacterium lentum journal November 1981
Isolation of a bile salt sulfatase-producing Clostridium strain from rat intestinal microflora journal January 1982
Profound Alterations of Intestinal Microbiota following a Single Dose of Clindamycin Results in Sustained Susceptibility to Clostridium difficile-Induced Colitis journal October 2011
High-Quality Whole-Genome Sequences of the Oligo-Mouse-Microbiota Bacterial Community journal October 2017
Antibiotic-Induced Alterations of the Gut Microbiota Alter Secondary Bile Acid Production and Allow for Clostridium difficile Spore Germination and Outgrowth in the Large Intestine journal February 2016
Prodigal: prokaryotic gene recognition and translation initiation site identification journal March 2010
Will the real bile acid sulfotransferase please stand up? Identification of Sult2a8 as a major hepatic bile acid sulfonating enzyme in mice journal June 2017
Comprehensive evaluation of the bactericidal activities of free bile acids in the large intestine of humans and rodents journal June 2017
Bile salt biotransformations by human intestinal bacteria journal November 2005
Bile acids: regulation of synthesis journal April 2009
In Vivo Imaging of Farnesoid X Receptor Activity Reveals the Ileum as the Primary Bile Acid Signaling Tissue journal June 2007
A Gut Odyssey: The Impact of the Microbiota on Clostridium difficile Spore Formation and Germination journal October 2015
Bile salt hydrolases: Gatekeepers of bile acid metabolism and host-microbiome crosstalk in the gastrointestinal tract journal March 2019
Chenodeoxycholic Acid-mediated Activation of the Farnesoid X Receptor Negatively Regulates Hydroxysteroid Sulfotransferase journal January 2006
Functional Intestinal Bile Acid 7α-Dehydroxylation by Clostridium scindens Associated with Protection from Clostridium difficile Infection in a Gnotobiotic Mouse Model journal December 2016
Interactions between Bacteria and Bile Salts in the Gastrointestinal and Hepatobiliary Tracts journal October 2017
Reproducible Colonization of Germ-Free Mice With the Oligo-Mouse-Microbiota in Different Animal Facilities journal January 2020
Decrease in Nosocomial Clostridium difficile–Associated Diarrhea by Restricting Clindamycin Use journal February 1994
Hospital-wide Restriction of Clindamycin: Effect on the Incidence of Clostridium difficile-Associated Diarrhea and Cost journal June 1998

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