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Deconjugation of Polychlorinated Biphenyl Sulfates to Hydroxylated PCBs by Anaerobically Cultured Mouse and Human Gut Microbiota
Journal article   Open access   Peer reviewed

Deconjugation of Polychlorinated Biphenyl Sulfates to Hydroxylated PCBs by Anaerobically Cultured Mouse and Human Gut Microbiota

Xueshu Li, Joe J Lim, Cayen Rong, Hans-Joachim Lehmler and Julia Yue Cui
Chemical research in toxicology, Vol.38(4), pp.557-560
04/21/2025
DOI: 10.1021/acs.chemrestox.5c00016
PMCID: PMC12015953
PMID: 40130436
url
https://doi.org/10.1021/acs.chemrestox.5c00016View
Published (Version of record) Open Access

Abstract

The role of the gut microbiome in metabolizing polychlorinated biphenyls (PCBs), toxic environmental contaminants, and their metabolites remains unclear. This study used mouse and human microbiomes in anaerobic cultures to investigate the metabolism of PCB sulfate to hydroxylated PCBs (OH-PCBs). All microbiomes enzymatically hydrolyzed PCB sulfates. Higher chlorinated PCB sulfates were metabolized more readily. Male mouse microbiomes exhibited more PCB sulfate hydrolysis to OH-PCBs than female mouse microbiomes. Human microbiomes metabolized PCB sulfates to a more considerable extent than mouse microbiomes. They also showed variability in PCB sulfate metabolism, depending on the microbial communities. These findings suggest that the microbiome contributes to PCB metabolism.
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