Evidence map›Paper›PMID 39856097›Full record

ArticleNature communications2025

Diet-derived urolithin A is produced by a dehydroxylase encoded by human gut Enterocloster species.

Reilly Pidgeon, Sacha Mitchell, Michael Shamash, Layan Suleiman, Lharbi Dridi, Corinne F Maurice, Bastien Castagner

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

  1. Article
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  11. Article
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  13. Food chemistry: X · 2026
    Article
  14. Review
  15. Review
  16. Distinct classes of gut bacterial molybdenum-dependent enzymes produce urolithins.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Article
  18. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Reilly PidgeonDepartment of Pharmacology & Therapeutics, McGill University, 3655 Prom. Sir-William-Osler, Montreal, Quebec, H3G 1Y6, Canada.ORCID http://orcid.org/0000-0002-7372-526X
Sacha MitchellDepartment of Pharmacology & Therapeutics, McGill University, 3655 Prom. Sir-William-Osler, Montreal, Quebec, H3G 1Y6, Canada.ORCID http://orcid.org/0009-0001-4009-2224
Michael ShamashDepartment of Microbiology & Immunology, McGill University, 3775 University Street, Montreal, Quebec, H3A 2B4, Canada.ORCID http://orcid.org/0000-0001-7900-647X
Layan SuleimanDepartment of Pharmacology & Therapeutics, McGill University, 3655 Prom. Sir-William-Osler, Montreal, Quebec, H3G 1Y6, Canada.
Lharbi DridiDepartment of Pharmacology & Therapeutics, McGill University, 3655 Prom. Sir-William-Osler, Montreal, Quebec, H3G 1Y6, Canada.ORCID http://orcid.org/0009-0004-7361-7439
Corinne F MauriceDepartment of Microbiology & Immunology, McGill University, 3775 University Street, Montreal, Quebec, H3A 2B4, Canada.ORCID http://orcid.org/0000-0001-7187-3472
Bastien CastagnerDepartment of Pharmacology & Therapeutics, McGill University, 3655 Prom. Sir-William-Osler, Montreal, Quebec, H3G 1Y6, Canada. bastien.castagner@mcgill.ca.ORCID http://orcid.org/0000-0002-9207-1329

Funding

Gouvernement du Canada | Canadian Institutes of Health Research (Instituts de Recherche en Santé du Canada) PJT-437944
6 · The paper itself

Abstract

Urolithin A (uroA) is a polyphenol derived from the multi-step metabolism of dietary ellagitannins by the human gut microbiota. Once absorbed, uroA can trigger mitophagy and aryl hydrocarbon receptor signaling pathways, altering host immune function, mitochondrial health, and intestinal barrier integrity. Most individuals harbor a microbiota capable of uroA production; however, the mechanisms underlying the dehydroxylation of its catechol-containing precursor (uroC) are unknown. Here, we use a combination of untargeted bacterial transcriptomics, proteomics, and comparative genomics to uncover an inducible uroC dehydroxylase (ucd) operon in Enterocloster species. We show that the ucd operon encodes a predicted molybdopterin-dependent enzyme complex that dehydroxylates urolithins at a specific position (9-OH). By interrogating publicly available metagenomics datasets, we observed that uroC-metabolizing Enterocloster species and ucd operon genes are prevalent in human feces. In ex vivo experiments with human fecal samples, only samples actively transcribing ucd could produce uroA, possibly explaining differences in urolithin metabolism between individuals. Collectively, this work identifies Enterocloster species and the ucd operon as important contributors to uroA production and establishes a multi-omics framework to further our mechanistic understanding of polyphenol metabolism by the human gut microbiota.

Indexed as

Bacterial ProteinsCoumarinsDietGastrointestinal MicrobiomeFecesHumansHydrolyzable TanninsMetagenomicsOperon3,8-dihydroxy-6H-dibenzo(b,d)pyran-6-oneBacterial ProteinsCoumarinsHydrolyzable Tannins

Identifiers

PMID39856097
PMCPMC11760930

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.