Cited by 632Gut microbiota and healthSteroid Chemistry and BiochemistryDrug Transport and Resistance Mechanisms

Novel bile acid biosynthetic pathways are enriched in the microbiome of centenarians

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Sato, Yuko, Atarashi, Koji, Plichta, Damian R., Arai, Yasumichi, Sasajima, Satoshi, Kearney, Sean M., Suda, Wataru, Takeshita, Kozue +27 more·2021·Nature

Published version of a preprint

Abstract

Centenarians have a decreased susceptibility to ageing-associated illnesses, chronic inflammation and infectious diseases 1-3. Here we show that centenarians have a distinct gut microbiome that is enriched in microorganisms that are capable of generating unique secondary bile acids, including various isoforms of lithocholic acid (LCA): iso-, 3-oxo-, allo-, 3-oxoallo- and isoallolithocholic acid. Among these bile acids, the biosynthetic pathway for isoalloLCA had not been described previously. By screening 68 bacterial isolates from the faecal microbiota of a centenarian, we identified Odoribacteraceae strains as effective producers of isoalloLCA both in vitro and in vivo. Furthermore, we found that the enzymes 5α-reductase (5AR) and 3β-hydroxysteroid dehydrogenase (3β-HSDH) were responsible for the production of isoalloLCA. IsoalloLCA exerted potent antimicrobial effects against Gram-positive (but not Gram-negative) multidrug-resistant pathogens, including Clostridioides difficile and Enterococcus faecium. These findings suggest that the metabolism of specific bile acids may be involved in reducing the risk of infection with pathobionts, thereby potentially contributing to the maintenance of intestinal homeostasis.

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Crossref · 10.1038/s41586-021-03832-5

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  • The Odoribacter genus is strongly associated with bile acids and short-chain fatty acids.

    “This certain bacterial genus was strongly associated with the bile acids (BAs) and short-chain fatty acids (SCFAs) (Chen et al. 2025; Sato et al. 2021).”

    From Odoribacter laneus protects intestinal barrier by bile acid-FXR axis in acute pancreatitis (2026) · cites this paper as Sato et al. 2021

    In “Effects of isoalloLCA on the commensal gut microbiota” (page not provided), the paper reports positive correlations between Odoribacter laneus and three bile acids. It does not report an association between Odoribacter and short-chain fatty acids, so only the bile-acid part is supported. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Genomes of Odoribacter contain the essential enzymes 5AR and 3β-HSDH required for secondary bile acid synthesis.

    “The genomes of Odoribacter contain the essential enzymes (5AR and 3β-HSDH) required for secondary bile acid (SBA) synthesis (Sato et al. 2021).”

    From Odoribacter laneus protects intestinal barrier by bile acid-FXR axis in acute pancreatitis (2026) · cites this paper as Sato et al. 2021

    In “5AR- and 3β-HSDH-mediated transformation of 3-oxoΔ4-LCA to isoalloLCA” (page not given), the paper identifies an Odoribacteraceae St21 isolate carrying genes for 5AR and 3β-HSDH and links them to isoalloLCA production. It does not establish that Odoribacter genomes generally carry these genes or that the enzymes are required for secondary bile acid synthesis broadly. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Certain secondary bile acids serve significant biological functions, including regulation of host metabolism, immunity, and resistance against intestinal pathogen expansion.

    “Nevertheless, it is noteworthy that certain secondary BAs serve significant biological functions, including the regulation of host metabolism, immunity, and resistance against intestinal pathogen expansion.21,360–364”
  • Specific secondary bile acids produced by Alistipes putredinis and Odoribacter splanchnicus are more prevalent in centenarians and contribute to intestinal homeostasis.

    “specific secondary bile acids (including isoallolithocholic acid) produced by distinct gut species (such as Alistipes putredinis and Odoribacter splanchnicus) are more prevalent in centenarian individuals and reportedly contribute to intestinal homeostasis22.”
  • The gut microbiota of centenarians is enriched in bacteria capable of generating unique secondary bile acids with potent effects against pathogens such as Clostridioides difficile and Enterococcus faecium.

    “The gut microbiota of centenarians is also enriched in bacteria capable of generating unique secondary bile acids with potent effects against pathogens such as Clostridioides difficile and Enterococcus faecium.”

    From Meta-hallmarks of aging and cancer (2023) · cites this paper as [92]

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Authors
Sato, Y., Atarashi, K., Plichta, D. R., Arai, Y., Sasajima, S., Kearney, S. M., Suda, W., Takeshita, K., Sasaki, T., Okamoto, S., Skelly, A. N., Okamura, Y., Vlamakis, H., Li, Y., Tanoue, T., Takei, H., Nittono, H., Narushima, S., Irie, J., Itoh, H., Moriya, K., Sugiura, Y., Suematsu, M., Moritoki, N., Shibata, S., Littman, D. R., Fischbach, M. A., Uwamino, Y., Inoue, T., Honda, A., Hattori, M., Murai, T., Xavier, R. J., Hirose, N., & Honda, K.
Affiliations
  • Keio University (JP)
  • Broad Institute (US)
  • RIKEN Center for Integrative Medical Sciences (JP)
  • Health Sciences University of Hokkaido (JP)
  • The University of Tokyo (JP)
  • Howard Hughes Medical Institute (US)
  • Stanford University (US)
  • Central Institute for Experimental Animals (JP)
  • Tokyo Medical University Ibaraki Medical Center (JP)
  • Waseda University (JP)
Corresponding author
  • Xavier, Ramnik J.
  • Honda, Kenya
Venue
Nature
Published
2021-07-29
Volume
599
Issue
7885
Pages
458-464
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W3184541229
Cited by
632
References
53
Citations by year
2026: 113 · 2025: 126 · 2024: 174 · 2023: 99 · 2022: 94 · 2021: 24
FWCI
31.13
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • Research Square (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Naito Foundation
  • Takeda Science Foundation
  • Japan Agency for Medical Research and Development (20gm0010003h0005)
  • Broad Institute
  • Keio University
  • Japan Society for the Promotion of Science (20H05627, 21K18270, 21K08584, 18H03055, 20H00535, No: 20H05627)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK043351)
  • Research Complex Program (JP15667051)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Steroid Chemistry and Biochemistry
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
Keywords
centenarians, gut microbiota, secondary bile acids, lithocholic acid, bile acid synthesis, 5α-reductase, 3β-hydroxysteroid dehydrogenase, antimicrobial activity, multidrug-resistant pathogens, Clostridium difficile, Enterococcus faecium, pathobionts, intestinal homeostasis, aging
MeSH terms
Gastrointestinal Microbiome, Centenarians, Aged, 80 and over, Animals, Anti-Bacterial Agents, Bacteria, Feces, Female, Gram-Positive Bacteria, Humans, Lithocholic Acid, Male, Symbiosis, 3-Hydroxysteroid Dehydrogenases, Cholestenone 5 alpha-Reductase, Mice, Biosynthetic Pathways

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