Xueshu Li, Joe J Lim, Cayen Rong, Hans-Joachim Lehmler, Julia Yue Cui
{"title":"Deconjugation of Polychlorinated Biphenyl Sulfates to Hydroxylated PCBs by Anaerobically Cultured Mouse and Human Gut Microbiota.","authors":"Xueshu Li, Joe J Lim, Cayen Rong, Hans-Joachim Lehmler, Julia Yue Cui","doi":"10.1021/acs.chemrestox.5c00016","DOIUrl":null,"url":null,"abstract":"<p><p>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.</p>","PeriodicalId":31,"journal":{"name":"Chemical Research in Toxicology","volume":" ","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Research in Toxicology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1021/acs.chemrestox.5c00016","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MEDICINAL","Score":null,"Total":0}
引用次数: 0
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.
期刊介绍:
Chemical Research in Toxicology publishes Articles, Rapid Reports, Chemical Profiles, Reviews, Perspectives, Letters to the Editor, and ToxWatch on a wide range of topics in Toxicology that inform a chemical and molecular understanding and capacity to predict biological outcomes on the basis of structures and processes. The overarching goal of activities reported in the Journal are to provide knowledge and innovative approaches needed to promote intelligent solutions for human safety and ecosystem preservation. The journal emphasizes insight concerning mechanisms of toxicity over phenomenological observations. It upholds rigorous chemical, physical and mathematical standards for characterization and application of modern techniques.