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Huang S, Zhang Z, Li C, Luo Y, Zhang G. Diethyl ethylphosphonate retardants disturbed the gut microbiome and metabolite SCFAs in vitro based on simulator of the human intestinal microbial ecosystem. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 363:125064. [PMID: 39366448 DOI: 10.1016/j.envpol.2024.125064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 09/06/2024] [Accepted: 10/01/2024] [Indexed: 10/06/2024]
Abstract
Diethyl ethylphosphonate (DEEP) as a novel organophosphorus flame retardant received increasing attention and its structure was discovered. But there are currently insufficient studies on how DEEP exposure affects the gut microbiome. In this study, the effects of DEEP on the structure and function of the human gut microbiota were examined using the SHIME system. Results from high-throughput sequencing of the 16S rRNA gene show that the high dose DEEP exposure reduced the Shannon and Simpson index in the transverse and descending colon. The Bacillota had the highest proportion while the proportion of Proteobacteria gradually decreased at the phylum level. The abundance of Escherichia, Prevotella, and Bilophila at the genus level increased with increasing doses of DEEP exposure. On the contrary, the abundance of Megasphaera, Klebsiella, and Phascolarctobacterium decreased. The short-chain fatty acids had a significant shift. With increasing doses of DEEP exposure, the concentration of acetic acid and propionic acid increased, while the concentration of butyric acid reached the highest at the medium dose of exposure. In addition, Bilophila, Psychrobacter, Escherichia, and Nostoe showed strong beneficial associations with acetic and propionic acids under DEEP exposure. Phocaeicola, Agathobacter, Klebsiella, Megasphaera, Phascolarctobacterium, and Bacteroides were negatively association with acetic and propionic acids. In a word, the study verified that exposure to different doses of DEEP can cause changes in the composition of the gut microbiome and metabolite SCFAs, which provides ideas for the investigation of other potential hazards of DEEP on human beings.
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Affiliation(s)
- Shuyang Huang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Environmental Health, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Zhijia Zhang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Environmental Health, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Cong Li
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Environmental Health, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yasong Luo
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Environmental Health, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Guoxia Zhang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Environmental Health, School of Public Health, Southern Medical University, Guangzhou 510515, China.
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2
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Davias A, Lyon-Caen S, Rolland M, Iszatt N, Thomsen C, Haug LS, Sakhi AK, Monot C, Rayah Y, Ilhan ZE, Jovanovic N, Philippat C, Eggesbo M, Lepage P, Slama R. Perinatal Exposure to Phenols and Poly- and Perfluoroalkyl Substances and Gut Microbiota in One-Year-Old Children. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:15395-15414. [PMID: 39173114 DOI: 10.1021/acs.est.3c09927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
The role of the gut microbiota in human health calls for a better understanding of its determinants. In particular, the possible effects of chemicals with widespread exposure other than pharmaceuticals are little known. Our aim was to characterize the sensitivity of the early-life gut microbiota to specific chemicals with possible antimicrobial action. Within the SEPAGES French couple-child cohort, we assessed 12 phenols in repeated urine samples from 356 pregnant women and their offspring and 19 poly- and perfluoroalkyl substances (PFASs) in serum from the pregnant women. We collected stool samples from the children at one year of age, in which the V3-V4 region of the 16S rRNA gene was sequenced, allowing for gut bacterial profiling. Associations of each chemical with α- and β-diversity indices of the gut microbiota and with the relative abundance of the most abundant taxa were assessed using single-pollutant and mixture (BKMR) models. Perinatal exposure to certain parabens was associated with gut microbiota α- and β-diversity and with Firmicutes and Proteobacteria. Suggestive associations of certain phenols with genera of the Lachnospiraceae and Enterobacteriaceae families were observed, but these were not maintained after correction for multiple testing. Parabens, which have known antimicrobial properties, might disrupt the child gut microbiota, but larger studies are required to confirm these findings.
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Affiliation(s)
- Aline Davias
- Environmental Epidemiology Applied to Development and Respiratory Health Team, Institute for Advanced Biosciences, University Grenoble Alpes, Inserm, CNRS, La Tronche 38700, France
| | - Sarah Lyon-Caen
- Environmental Epidemiology Applied to Development and Respiratory Health Team, Institute for Advanced Biosciences, University Grenoble Alpes, Inserm, CNRS, La Tronche 38700, France
| | - Matthieu Rolland
- Environmental Epidemiology Applied to Development and Respiratory Health Team, Institute for Advanced Biosciences, University Grenoble Alpes, Inserm, CNRS, La Tronche 38700, France
| | - Nina Iszatt
- Division of Climate and Environmental Health, Norwegian Institute of Public Health (NIPH), Oslo 0213, Norway
| | - Cathrine Thomsen
- Division of Climate and Environmental Health, Norwegian Institute of Public Health (NIPH), Oslo 0213, Norway
| | - Line Småstuen Haug
- Division of Climate and Environmental Health, Norwegian Institute of Public Health (NIPH), Oslo 0213, Norway
| | - Amrit Kaur Sakhi
- Division of Climate and Environmental Health, Norwegian Institute of Public Health (NIPH), Oslo 0213, Norway
| | - Celine Monot
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas 78350, France
| | - Yamina Rayah
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas 78350, France
| | - Zehra Esra Ilhan
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas 78350, France
| | - Nicolas Jovanovic
- Environmental Epidemiology Applied to Development and Respiratory Health Team, Institute for Advanced Biosciences, University Grenoble Alpes, Inserm, CNRS, La Tronche 38700, France
| | - Claire Philippat
- Environmental Epidemiology Applied to Development and Respiratory Health Team, Institute for Advanced Biosciences, University Grenoble Alpes, Inserm, CNRS, La Tronche 38700, France
| | - Merete Eggesbo
- Division of Climate and Environmental Health, Norwegian Institute of Public Health (NIPH), Oslo 0213, Norway
| | - Patricia Lepage
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas 78350, France
| | - Rémy Slama
- Environmental Epidemiology Applied to Development and Respiratory Health Team, Institute for Advanced Biosciences, University Grenoble Alpes, Inserm, CNRS, La Tronche 38700, France
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Howard EJ, Meyer RK, Weninger SN, Martinez T, Wachsmuth HR, Pignitter M, Auñon-Lopez A, Kangath A, Duszka K, Gu H, Schiro G, Laubtiz D, Duca FA. Impact of Plant-Based Dietary Fibers on Metabolic Homeostasis in High-Fat Diet Mice via Alterations in the Gut Microbiota and Metabolites. J Nutr 2024; 154:2014-2028. [PMID: 38735572 PMCID: PMC11282473 DOI: 10.1016/j.tjnut.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/23/2024] [Accepted: 05/08/2024] [Indexed: 05/14/2024] Open
Abstract
BACKGROUND The gut microbiota contributes to metabolic disease, and diet shapes the gut microbiota, emphasizing the need to better understand how diet impacts metabolic disease via gut microbiota alterations. Fiber intake is linked with improvements in metabolic homeostasis in rodents and humans, which is associated with changes in the gut microbiota. However, dietary fiber is extremely heterogeneous, and it is imperative to comprehensively analyze the impact of various plant-based fibers on metabolic homeostasis in an identical setting and compare the impact of alterations in the gut microbiota and bacterially derived metabolites from different fiber sources. OBJECTIVES The objective of this study was to analyze the impact of different plant-based fibers (pectin, β-glucan, wheat dextrin, resistant starch, and cellulose as a control) on metabolic homeostasis through alterations in the gut microbiota and its metabolites in high-fat diet (HFD)-fed mice. METHODS HFD-fed mice were supplemented with 5 different fiber types (pectin, β-glucan, wheat dextrin, resistant starch, or cellulose as a control) at 10% (wt/wt) for 18 wk (n = 12/group), measuring body weight, adiposity, indirect calorimetry, glucose tolerance, and the gut microbiota and metabolites. RESULTS Only β-glucan supplementation during HFD-feeding decreased adiposity and body weight gain and improved glucose tolerance compared with HFD-cellulose, whereas all other fibers had no effect. This was associated with increased energy expenditure and locomotor activity in mice compared with HFD-cellulose. All fibers supplemented into an HFD uniquely shifted the intestinal microbiota and cecal short-chain fatty acids; however, only β-glucan supplementation increased cecal butyrate concentrations. Lastly, all fibers altered the small-intestinal microbiota and portal bile acid composition. CONCLUSIONS These findings demonstrate that β-glucan consumption is a promising dietary strategy for metabolic disease, possibly via increased energy expenditure through alterations in the gut microbiota and bacterial metabolites in mice.
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Affiliation(s)
- Elizabeth J Howard
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, United States
| | - Rachel K Meyer
- School of Nutritional Sciences and Wellness, University of Arizona, Tucson, AZ, United States
| | - Savanna N Weninger
- Department of Physiology, University of Arizona, Tucson, AZ, United States
| | - Taylor Martinez
- Department of Physiology, University of Arizona, Tucson, AZ, United States
| | - Hallie R Wachsmuth
- Department of Physiology, University of Arizona, Tucson, AZ, United States
| | - Marc Pignitter
- Institute of Physiological Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Arturo Auñon-Lopez
- Institute of Physiological Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria; Vienna Doctoral School in Chemistry (DoSChem), Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Archana Kangath
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, United States
| | - Kalina Duszka
- Department of Nutritional Sciences, University of Vienna, Vienna, Austria
| | - Haiwei Gu
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
| | - Gabriele Schiro
- PANDA Core for Genomics and Microbiome Research, Steele Children's Research Center, University of Arizona, Tucson, AZ, United States
| | - Daniel Laubtiz
- PANDA Core for Genomics and Microbiome Research, Steele Children's Research Center, University of Arizona, Tucson, AZ, United States
| | - Frank A Duca
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, United States; BIO5 Institute, University of Arizona, Tucson, AZ, United States.
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Lim JJ, Goedken M, Jin Y, Gu H, Cui JY. Single-cell transcriptomics unveiled that early life BDE-99 exposure reprogrammed the gut-liver axis to promote a proinflammatory metabolic signature in male mice at late adulthood. Toxicol Sci 2024; 200:114-136. [PMID: 38648751 PMCID: PMC11199921 DOI: 10.1093/toxsci/kfae047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024] Open
Abstract
Polybrominated diphenyl ethers (PBDEs) are legacy flame retardants that bioaccumulate in the environment. The gut microbiome is an important regulator of liver functions including xenobiotic biotransformation and immune regulation. We recently showed that neonatal exposure to polybrominated diphenyl ether-99 (BDE-99), a human breast milk-enriched PBDE congener, up-regulated proinflammation-related and down-regulated drug metabolism-related genes predominantly in males in young adulthood. However, the persistence of this dysregulation into late adulthood, differential impact among hepatic cell types, and the involvement of the gut microbiome from neonatal BDE-99 exposure remain unknown. To address these knowledge gaps, male C57BL/6 mouse pups were orally exposed to corn oil (10 ml/kg) or BDE-99 (57 mg/kg) once daily from postnatal days 2-4. At 15 months of age, neonatal BDE-99 exposure down-regulated xenobiotic and lipid-metabolizing enzymes and up-regulated genes involved in microbial influx in hepatocytes. Neonatal BDE-99 exposure also increased the hepatic proportion of neutrophils and led to a predicted increase of macrophage migration inhibitory factor signaling. This was associated with decreased intestinal tight junction protein (Tjp) transcripts, altered gut environment, and dysregulation of inflammation-related metabolites. ScRNA-seq using germ-free (GF) mice demonstrated the necessity of a normal gut microbiome in maintaining hepatic immune tolerance. Microbiota transplant to GF mice using large intestinal microbiome from adults neonatally exposed to BDE-99 down-regulated Tjp transcripts and up-regulated several cytokines in large intestine. In conclusion, neonatal BDE-99 exposure reprogrammed cell type-specific gene expression and cell-cell communication in liver towards proinflammation, and this may be partly due to the dysregulated gut environment.
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Affiliation(s)
- Joe Jongpyo Lim
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
- Environmental Health and Microbiome Research Center (EHMBRACE), Seattle, Washington 98105, USA
| | - Michael Goedken
- Rutgers Research Pathology Services, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Yan Jin
- Center for Translational Science, Florida International University, Port St Lucie, Florida 34987, USA
| | - Haiwei Gu
- Center for Translational Science, Florida International University, Port St Lucie, Florida 34987, USA
| | - Julia Yue Cui
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
- Environmental Health and Microbiome Research Center (EHMBRACE), Seattle, Washington 98105, USA
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5
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Chi Y, Zhu L, Wang Y, Peng C, Lin Y, Ji S, Wei J. Long-term Bisphenol S exposure induced gut microbiota dysbiosis, obesity, hepatic lipid accumulation, intestinal lesions and dyslipidemia in mice. Toxicology 2024; 504:153798. [PMID: 38588857 DOI: 10.1016/j.tox.2024.153798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 04/10/2024]
Abstract
Bisphenol S (BPS) is a commonly detected chemical raw material in water, which poses significant threats to both the ecological environment and human health. Despite being recognized as a typical endocrine disruptor and a substitute for Bisphenol A, the toxicological effects of BPS remain nonnegligible. In order to comprehensively understand the health impacts of BPS, a long-term (154 days) exposure experiment was conducted on mice, during which the physiological indicators of the liver, intestine, and blood were observed. The findings revealed that exposure to BPS resulted in dysbiosis of the gut microbiota, obesity, hepatic lipid accumulation, intestinal lesions, and dyslipidemia. Furthermore, there exists a significant correlation between gut microbiota and indicators of host health. Consequently, the identification of specific gut microbiota can be considered as potential biomarkers for the evaluation of risk associated with BPS. This study will effectively address the deficiency in toxicological data pertaining to BPS. The novel BPS data obtained from this research can serve as a valuable reference for professionals in the field.
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Affiliation(s)
- Yulang Chi
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China
| | - Lin Zhu
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Yihui Wang
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Cai Peng
- Department of Basic Medical Sciences, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Yi Lin
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Shouping Ji
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China.
| | - Jie Wei
- Department of Basic Medical Sciences, School of Medicine, Xiamen University, Xiamen 361102, China.
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Song X, Lin Y, Zhang Y, Wang Z, Li X, Liu J, Jiang W, Chen J, Wu L, Rong J, Xu K, Wang G. Long-Term Tetrabromobisphenol A Exposure Induces Gut Microbiota Imbalance and Metabolic Disorders via the Peroxisome Proliferator-Activated Receptor Signaling Pathway in the Regenerated Gut of Apostichopus japonicus. BIOLOGY 2023; 12:1365. [PMID: 37997964 PMCID: PMC10669644 DOI: 10.3390/biology12111365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 11/25/2023]
Abstract
Tetrabromobisphenol A (TBBPA), a commonly utilized brominated flame retardant, is found in many types of abiotic and biotic matrices. TBBPA can increase oxidative stress, disrupt the endocrine system, cause neurodevelopmental disorders and activate peroxisome proliferator-activated receptors to modulate lipid deposits in aquatic animals. However, the toxic mechanism of TBBPA on the gut microbiota and intestinal health remains unclear. Apostichopus japonicus is an ideal model for studying the relationship between environmental contaminants and intestinal health due to its unique capacity for evisceration and quickly regenerated intestine. In the present study, we investigated the toxic mechanism of TBBPA on the gut microbiota and intestinal health in the regenerated intestine of A. japonicus. The results show that TBBPA exposure decreased the health of the regenerated intestine and the enzymatic activities, alpha diversity indices, and the relative abundance of the gut microbiota. Transcriptome analysis shows that TBBPA exposure affected lipid metabolism via the PPAR signaling pathway during the process of intestinal regeneration in A. japonicus, suggesting that TBBPA exposure can affect the composition and function of the gut microbiota and intestinal health in the regenerated intestine of A. japonicus. These results provide a basis for further research on the potential toxicity of TBBPA to the intestinal health in animals.
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Affiliation(s)
- Xiaojun Song
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Ying Lin
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Yinfeng Zhang
- College of Medicine, Qingdao University, Qingdao 266021, China
| | - Zi Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiaohan Li
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Jixiang Liu
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Wenwen Jiang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Jianing Chen
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Linxuan Wu
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Junjie Rong
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Kefeng Xu
- Marine Science Research Institute of Shandong Province, National Oceanographic Center, Qingdao 266104, China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Guodong Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
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Jin Y, Chi J, LoMonaco K, Boon A, Gu H. Recent Review on Selected Xenobiotics and Their Impacts on Gut Microbiome and Metabolome. Trends Analyt Chem 2023; 166:117155. [PMID: 37484879 PMCID: PMC10361410 DOI: 10.1016/j.trac.2023.117155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
As it is well known, the gut is one of the primary sites in any host for xenobiotics, and the many microbial metabolites responsible for the interactions between the gut microbiome and the host. However, there is a growing concern about the negative impacts on human health induced by toxic xenobiotics. Metabolomics, broadly including lipidomics, is an emerging approach to studying thousands of metabolites in parallel. In this review, we summarized recent advancements in mass spectrometry (MS) technologies in metabolomics. In addition, we reviewed recent applications of MS-based metabolomics for the investigation of toxic effects of xenobiotics on microbial and host metabolism. It was demonstrated that metabolomics, gut microbiome profiling, and their combination have a high potential to identify metabolic and microbial markers of xenobiotic exposure and determine its mechanism. Further, there is increasing evidence supporting that reprogramming the gut microbiome could be a promising approach to the intervention of xenobiotic toxicity.
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Affiliation(s)
- Yan Jin
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Jinhua Chi
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Kaelene LoMonaco
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Alexandria Boon
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Haiwei Gu
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
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8
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Xue J, Xiao Q, Zhang M, Li D, Wang X. Toxic Effects and Mechanisms of Polybrominated Diphenyl Ethers. Int J Mol Sci 2023; 24:13487. [PMID: 37686292 PMCID: PMC10487835 DOI: 10.3390/ijms241713487] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023] Open
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of flame retardants used in plastics, textiles, polyurethane foam, and other materials. They contain two halogenated aromatic rings bonded by an ester bond and are classified according to the number and position of bromine atoms. Due to their widespread use, PBDEs have been detected in soil, air, water, dust, and animal tissues. Besides, PBDEs have been found in various tissues, including liver, kidney, adipose, brain, breast milk and plasma. The continued accumulation of PBDEs has raised concerns about their potential toxicity, including hepatotoxicity, kidney toxicity, gut toxicity, thyroid toxicity, embryotoxicity, reproductive toxicity, neurotoxicity, and immunotoxicity. Previous studies have suggested that there may be various mechanisms contributing to PBDEs toxicity. The present study aimed to outline PBDEs' toxic effects and mechanisms on different organ systems. Given PBDEs' bioaccumulation and adverse impacts on human health and other living organisms, we summarize PBDEs' effects and potential toxicity mechanisms and tend to broaden the horizons to facilitate the design of new prevention strategies for PBDEs-induced toxicity.
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Affiliation(s)
- Jinsong Xue
- School of Biology, Food and Environment, Hefei University, Hefei 230601, China; (Q.X.); (M.Z.); (D.L.)
| | | | | | | | - Xiaofei Wang
- School of Biology, Food and Environment, Hefei University, Hefei 230601, China; (Q.X.); (M.Z.); (D.L.)
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9
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Kim S, Li H, Jin Y, Armad J, Gu H, Mani S, Cui JY. Maternal PBDE exposure disrupts gut microbiome and promotes hepatic proinflammatory signaling in humanized PXR-transgenic mouse offspring over time. Toxicol Sci 2023; 194:209-225. [PMID: 37267213 PMCID: PMC10375318 DOI: 10.1093/toxsci/kfad056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
Developmental exposure to the persistent environmental pollutant, polybrominated diphenyl ethers (PBDEs), is associated with increased diabetes prevalence. The microbial tryptophan metabolite, indole-3-propionic acid (IPA), is associated with reduced risk of type 2 diabetes and lower-grade inflammation and is a pregnane X receptor (PXR) activator. To explore the role of IPA in modifying the PBDE developmental toxicity, we orally exposed humanized PXR-transgenic (hPXR-TG) mouse dams to vehicle, 0.1 mg/kg/day DE-71 (an industrial PBDE mixture), DE-71+IPA (20 mg/kg/day), or IPA, from 4 weeks preconception to the end of lactation. Pups were weaned at 21 days of age and IPA supplementation continued in the corresponding treatment groups. Tissues were collected at various ages until 6 months of age (n = 5 per group). In general, the effect of maternal DE-71 exposure on the gut microbiome of pups was amplified over time. The regulation of hepatic cytokines and prototypical xenobiotic-sensing transcription factor target genes by DE-71 and IPA was age- and sex-dependent, where DE-71-mediated mRNA increased selected cytokines (Il10, Il12p40, Il1β [both sexes], and [males]). The hepatic mRNA of the aryl hydrocarbon receptor (AhR) target gene Cyp1a2 was increased by maternal DE-71 and DE-71+IPA exposure at postnatal day 21 but intestinal Cyp1a1 was not altered by any of the exposures and ages. Maternal DE-71 exposure persistently increased serum indole, a known AhR ligand, in age- and sex-dependent manner. In conclusion, maternal DE-71 exposure produced a proinflammatory signature along the gut-liver axis, including gut dysbiosis, dysregulated tryptophan microbial metabolism, attenuated PXR signaling, and elevated AhR signaling in postweaned hPXR-TG pups over time, which was partially corrected by IPA supplementation.
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Affiliation(s)
- Sarah Kim
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
| | - Hao Li
- Departments of Medicine, Molecular Pharmacology, and Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Yan Jin
- Center for Translational Science, Florida International University, Port St. Lucie, Florida 34987-2352, USA
| | - Jasmine Armad
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
| | - Haiwei Gu
- Center for Translational Science, Florida International University, Port St. Lucie, Florida 34987-2352, USA
| | - Sridhar Mani
- Departments of Medicine, Molecular Pharmacology, and Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Julia Y Cui
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
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10
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Mao W, Mao L, Zhou F, Shen J, Zhao N, Jin H, Hu J, Hu Z. Influence of Gut Microbiota on Metabolism of Bisphenol A, a Major Component of Polycarbonate Plastics. TOXICS 2023; 11:340. [PMID: 37112567 PMCID: PMC10144690 DOI: 10.3390/toxics11040340] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Bisphenol A (BPA) is a major component of polycarbonate plastics and epoxy resins. While many studies have investigated the effect BPA exposure has upon changes in gut microbial communities, the influence of gut microbiota on an organism's ability to metabolize BPA remains comparatively unexplored. To remedy this, in this study, Sprague Dawley rats were intermittently (i.e., at a 7-day interval) or continuously dosed with 500 μg BPA/kg bw/day for 28 days, via oral gavage. In the rats which underwent the 7-day interval BPA exposure, neither their metabolism of BPA nor their gut microbiota structure changed greatly with dosing time. In contrast, following continuous BPA exposure, the relative level of Firmicutes and Proteobacteria in the rats' guts significantly increased, and the alpha diversity of the rats' gut bacteria was greatly reduced. Meanwhile, the mean proportion of BPA sulfate to total BPA in rat blood was gradually decreased from 30 (on day 1) to 7.4% (by day 28). After 28 days of continuous exposure, the mean proportion of BPA glucuronide to total BPA in the rats' urine elevated from 70 to 81%, and in the rats' feces the mean proportion of BPA gradually decreased from 83 to 65%. Under continuous BPA exposure, the abundances of 27, 25, and 24 gut microbial genera were significantly correlated with the proportion of BPA or its metabolites in the rats' blood, urine, and feces, respectively. Overall, this study principally aimed to demonstrate that continuous BPA exposure disrupted the rats' gut microbiota communities, which in turn altered the rats' metabolism of BPA. These findings contribute to the better understanding of the metabolism of BPA in humans.
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Affiliation(s)
- Weili Mao
- Department of Pharmacy, Quzhou People’s Hospital, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou 310032, China
| | - Lingling Mao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China (J.H.)
| | - Feifei Zhou
- CAS Testing Technical Services Jiaxing Co., Jiaxing 314000, China
| | - Jiafeng Shen
- CAS Testing Technical Services Jiaxing Co., Jiaxing 314000, China
| | - Nan Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China (J.H.)
| | - Hangbiao Jin
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China (J.H.)
| | - Jun Hu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China (J.H.)
| | - Zefu Hu
- Department of Pharmacy, Quzhou People’s Hospital, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou 310032, China
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11
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Li Z, Wang W, Li J, Ru S. New insight on the mechanism of eating disorder in females based on metabolic differences of bisphenol S in female and male zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120820. [PMID: 36493936 DOI: 10.1016/j.envpol.2022.120820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/15/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
The different capacity of glucuronic acid metabolism might lead to the difference of bisphenol S (BPS) residual in tissues of male and female zebrafish. This may be the fundamental reason why BPS causes different effects in females and males. Here, adult zebrafish are exposed to 1, 10 and 100 μg/L BPS for 35 days to explore the main effect on females. After exposure, the liver of females showed stronger BPS metabolism ability than males, resulting in the accumulation of BPS in the gut of females. The results of neurotransmitters in gut of females revealed that the content of serotonin was decreased by BPS treatments. In addition, the mRNA expression levels of tryptophan 5-monooxygenase (Tph1) that regulated serotonin synthesis was reduced in gut of females in all BPS groups, and Tph1 protein has very high affinity with BPS molecule. Adult females treated with BPS exhibited symptoms including overeating, a decrease of serotonin in the gut, hypoglycemia and hyperlipidemia, a similar effect of Tph1 protein inhibitor LP533401 on adult females. This hypoglycemia stimulates brain agrp/pomc and orexin neurons to induce overfeeding behavior, causing intestinal homeostasis imbalance and hyperlipidemia. Our data elucidate a potential pathogenesis of eating disorder under pollutant stress.
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Affiliation(s)
- Ze Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Weiwei Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Jiali Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
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12
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Qiu H, Gao H, Yu F, Xiao B, Li X, Cai B, Ge L, Lu Y, Wan Z, Wang Y, Xia T, Wang A, Zhang S. Perinatal exposure to low-level PBDE-47 programs gut microbiota, host metabolism and neurobehavior in adult rats: An integrated analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 825:154150. [PMID: 35218822 DOI: 10.1016/j.scitotenv.2022.154150] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs), a major class of flame retardants, have been extensively applied in plastics, electrical equipment, textile fabrics, and so on. Early-life exposure to PBDEs is correlated to neurobehavioral deficits in adulthood, yet the underlying mechanism has not been fully understood. Increasing evidence has demonstrated that gut microbiota dysbiosis and serum metabolites alterations play a role in behavioral abnormalities. However, whether their perturbation is implicated in PBDEs-induced neurotoxicity remains unclear. Here, we sought to explore the effects of developmental exposure to environmentally relevant levels of 2, 2', 4, 4'-tetrabromodiphenyl ether (PBDE-47), a major congener in human samples, on gut microbiota and serum metabolic profile as well as their link to neurobehavioral parameters in adult rats. The open field test showed that gestational and lactational exposure to PBDE-47 caused hyperactivity and anxiety-like behavior. Moreover, 16S rRNA sequencing of fecal samples identified a distinct community composition in gut microbiota following PBDE-47 exposure, manifested as decreased genera Ruminococcaceae and Moraxella, increased families Streptococcaceae and Deferribacteraceae as well as genera Escherichia-Shigella, Pseudomonas and Peptococcus. Additionally, the metabolomics of the blood samples based on liquid chromatography-mass spectrometry revealed a significant shift after PBDE-47 treatment. Notably, these differential serum metabolites were mainly involved in amino acid, carbohydrate, nucleotide, xenobiotics, and lipid metabolisms, which were further validated by pathway analysis. Importantly, the disturbed gut microbiota and the altered serum metabolites were associated with each other and with neurobehavioral disorders, respectively. Collectively, these results suggest that gut microbiota dysbiosis and serum metabolites alterations potentially mediated early-life low-dose PBDE-47 exposure-induced neurobehavioral impairments, which provides a novel perspective on understanding the mechanisms of PBDE-47 neurotoxicity.
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Affiliation(s)
- Haixia Qiu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Gao
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fangjin Yu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Boya Xiao
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoning Li
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Cai
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Long Ge
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yinting Lu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhengyi Wan
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yafei Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Xia
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Aiguo Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shun Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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13
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Morgan EW, Perdew GH, Patterson AD. Multi-Omics Strategies for Investigating the Microbiome in Toxicology Research. Toxicol Sci 2022; 187:189-213. [PMID: 35285497 PMCID: PMC9154275 DOI: 10.1093/toxsci/kfac029] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Microbial communities on and within the host contact environmental pollutants, toxic compounds, and other xenobiotic compounds. These communities of bacteria, fungi, viruses, and archaea possess diverse metabolic potential to catabolize compounds and produce new metabolites. Microbes alter chemical disposition thus making the microbiome a natural subject of interest for toxicology. Sequencing and metabolomics technologies permit the study of microbiomes altered by acute or long-term exposure to xenobiotics. These investigations have already contributed to and are helping to re-interpret traditional understandings of toxicology. The purpose of this review is to provide a survey of the current methods used to characterize microbes within the context of toxicology. This will include discussion of commonly used techniques for conducting omic-based experiments, their respective strengths and deficiencies, and how forward-looking techniques may address present shortcomings. Finally, a perspective will be provided regarding common assumptions that currently impede microbiome studies from producing causal explanations of toxicologic mechanisms.
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Affiliation(s)
- Ethan W Morgan
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Gary H Perdew
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Andrew D Patterson
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.,Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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14
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Taylor RE, Bhattacharya A, Guo GL. Environmental Chemical Contribution to the Modulation of Bile Acid Homeostasis and Farnesoid X Receptor Signaling. Drug Metab Dispos 2022; 50:456-467. [PMID: 34759011 PMCID: PMC11022932 DOI: 10.1124/dmd.121.000388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 11/05/2021] [Indexed: 11/22/2022] Open
Abstract
Maintaining bile acid (BA) homeostasis is important and regulated by BA activated receptors and signaling pathways. Farnesoid X receptor (FXR) and its regulated target networks in both the liver and the intestines are critical in suppressing BA synthesis and promoting BA transport and enterohepatic circulation. In addition, FXR is critical in regulating lipid metabolism and reducing inflammation, processes critical in the development of cholestasis and fatty liver diseases. BAs are modulated by, but also control, gut microflora. Environmental chemical exposure could affect liver disease development. However, the effects and the mechanisms by which environmental chemicals interact with FXR to affect BA homeostasis are only emerging. In this minireview, our focus is to provide evidence from reports that determine the effects of environmental or therapeutic exposure on altering homeostasis and functions of BAs and FXR. Understanding these effects will help to determine liver disease pathogenesis and provide better prevention and treatment in the future. SIGNIFICANCE STATEMENT: Environmental chemical exposure significantly contributes to the development of cholestasis and nonalcoholic steatohepatitis (NASH). The impact of exposures on bile acid (BA) signaling and Farnesoid X receptor-mediated gut-liver crosstalk is emerging. However, there is still a huge gap in understanding how these chemicals contribute to the dysregulation of BA homeostasis and how this dysregulation may promote NASH development.
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Affiliation(s)
- Rulaiha E Taylor
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey (R.E.T., A.B., G.L.G.); Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey, Piscataway, New Jersey (G.L.G.); Rutgers Center for Lipid Research, Rutgers, The State University of New Jersey, New Brunswick, New Jersey (G.L.G.); and VA New Jersey Health Care System, Veterans Administration Medical Center, East Orange, New Jersey (G.L.G.)
| | - Anisha Bhattacharya
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey (R.E.T., A.B., G.L.G.); Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey, Piscataway, New Jersey (G.L.G.); Rutgers Center for Lipid Research, Rutgers, The State University of New Jersey, New Brunswick, New Jersey (G.L.G.); and VA New Jersey Health Care System, Veterans Administration Medical Center, East Orange, New Jersey (G.L.G.)
| | - Grace L Guo
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey (R.E.T., A.B., G.L.G.); Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey, Piscataway, New Jersey (G.L.G.); Rutgers Center for Lipid Research, Rutgers, The State University of New Jersey, New Brunswick, New Jersey (G.L.G.); and VA New Jersey Health Care System, Veterans Administration Medical Center, East Orange, New Jersey (G.L.G.)
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15
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Dutta M, Lim JJ, Cui JY. Pregnane X Receptor and the Gut-Liver Axis: A Recent Update. Drug Metab Dispos 2022; 50:478-491. [PMID: 34862253 PMCID: PMC11022899 DOI: 10.1124/dmd.121.000415] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 12/02/2021] [Indexed: 02/04/2023] Open
Abstract
It is well-known that the pregnane X receptor (PXR)/Nr1i2 is a critical xenobiotic-sensing nuclear receptor enriched in liver and intestine and is responsible for drug-drug interactions, due to its versatile ligand binding domain (LBD) and target genes involved in xenobiotic biotransformation. PXR can be modulated by various xenobiotics including pharmaceuticals, nutraceuticals, dietary factors, and environmental chemicals. Microbial metabolites such as certain secondary bile acids (BAs) and the tryptophan metabolite indole-3-propionic acid (IPA) are endogenous PXR activators. Gut microbiome is increasingly recognized as an important regulator for host xenobiotic biotransformation and intermediary metabolism. PXR regulates and is regulated by the gut-liver axis. This review summarizes recent research advancements leveraging pharmaco- and toxico-metagenomic approaches that have redefined the previous understanding of PXR. Key topics covered in this review include: (1) genome-wide investigations on novel PXR-target genes, novel PXR-DNA interaction patterns, and novel PXR-targeted intestinal bacteria; (2) key PXR-modulating activators and suppressors of exogenous and endogenous sources; (3) novel bidirectional interactions between PXR and gut microbiome under physiologic, pathophysiological, pharmacological, and toxicological conditions; and (4) modifying factors of PXR-signaling including species and sex differences and time (age, critical windows of exposure, and circadian rhythm). The review also discusses critical knowledge gaps and important future research topics centering around PXR. SIGNIFICANCE STATEMENT: This review summarizes recent research advancements leveraging O'mics approaches that have redefined the previous understanding of the xenobiotic-sensing nuclear receptor pregnane X receptor (PXR). Key topics include: (1) genome-wide investigations on novel PXR-targeted host genes and intestinal bacteria as well as novel PXR-DNA interaction patterns; (2) key PXR modulators including microbial metabolites under physiological, pathophysiological, pharmacological, and toxicological conditions; and (3) modifying factors including species, sex, and time.
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Affiliation(s)
- Moumita Dutta
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington
| | - Joe Jongpyo Lim
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington
| | - Julia Yue Cui
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington
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16
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Ioannou GN, Lee SP, Linsley PS, Gersuk V, Yeh MM, Chen Y, Peng Y, Dutta M, Mascarinas G, Molla B, Cui JY, Savard C. Pcsk9 Deletion Promotes Murine Nonalcoholic Steatohepatitis and Hepatic Carcinogenesis: Role of Cholesterol. Hepatol Commun 2022; 6:780-794. [PMID: 34816633 PMCID: PMC8948564 DOI: 10.1002/hep4.1858] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 09/24/2021] [Accepted: 10/14/2021] [Indexed: 01/02/2023] Open
Abstract
Proprotein convertase subtilisin/kexin type 9 (Pcsk9) binds to hepatic low-density lipoprotein receptor (LDLR) and induces its internalization and degradation. Pcsk9 inhibition increases LDLR expression by hepatocytes, which causes increased uptake of circulating LDL, thereby reducing plasma LDL-cholesterol. However, by increasing the uptake of LDL by the liver, Pcsk9 inhibition increases the exposure of the liver to cholesterol, which may result in higher risk of steatohepatitis and ever carcinogenesis. We compared Pcsk9-/- knockout (KO) mice and appropriate wild-type (WT) controls of the same strain assigned to a high-fat (15%, wt/wt) diet for 9 months supplemented with 0.25%, 0.5%, or 0.75% dietary cholesterol. Pcsk9 KO mice on a high-fat, high-cholesterol diet exhibited higher levels of hepatic free cholesterol loading and hepatic cholesterol crystallization than their WT counterparts. Pcsk9 KO mice developed crown-like structures of macrophages surrounding cholesterol crystal-containing lipid droplets and hepatocytes, exhibited higher levels of apoptosis, and developed significantly more hepatic inflammation and fibrosis consistent with fibrosing steatohepatitis, including 5-fold and 11-fold more fibrosis at 0.5% and 0.75% dietary cholesterol, respectively. When injected with diethylnitrosamine, a hepatic carcinogen, early-in-life Pcsk9 KO mice were more likely to develop liver cancer than WT mice. Conclusion: Pcsk9 KO mice on high-cholesterol diets developed increased hepatic free cholesterol and cholesterol crystals and fibrosing steatohepatitis with a higher predisposition to liver cancer compared with WT mice. Future studies should evaluate whether patients on long-term treatment with anti-PSCK9 monoclonal antibodies are at increased risk of hepatic steatosis, steatohepatitis or liver cancer, while accounting for concurrent use of statins.
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Affiliation(s)
- George N. Ioannou
- Division of GastroenterologyDepartment of MedicineVeterans Affairs Puget Sound Health Care SystemSeattleWAUSA
- Division of GastroenterologyDepartment of MedicineUniversity of WashingtonSeattleWAUSA
- Research and DevelopmentVeterans Affairs Puget Sound Health Care SystemSeattleWAUSA
| | - Sum P. Lee
- Division of GastroenterologyDepartment of MedicineUniversity of WashingtonSeattleWAUSA
| | | | - Vivian Gersuk
- Systems ImmunologyBenaroya Research InstituteSeattleWAUSA
| | - Matthew M. Yeh
- Division of GastroenterologyDepartment of MedicineUniversity of WashingtonSeattleWAUSA
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWAUSA
| | - Yen‐Ying Chen
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWAUSA
- Department of Pathology and Laboratory MedicineSchool of MedicineTaipei Veterans General HospitalNational Yang‐Ming UniversityTaipeiTaiwan
- Present address:
Department of PathologyShuang Ho Hospital and School of MedicineCollege of MedicineTaipei Medical UniversityTaipeiTaiwan
| | - Yi‐Jen Peng
- Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattleWAUSA
- Department of PathologyTri‐Service General HospitalNational Defense Medical CenterTaipeiTaiwan
| | - Moumita Dutta
- Department of Environmental and Occupational Health SciencesUniversity of WashingtonSeattleWAUSA
| | - Gabby Mascarinas
- Department of Environmental and Occupational Health SciencesUniversity of WashingtonSeattleWAUSA
| | - Bruk Molla
- Department of Environmental and Occupational Health SciencesUniversity of WashingtonSeattleWAUSA
| | - Julia Yue Cui
- Department of Environmental and Occupational Health SciencesUniversity of WashingtonSeattleWAUSA
| | - Christopher Savard
- Division of GastroenterologyDepartment of MedicineVeterans Affairs Puget Sound Health Care SystemSeattleWAUSA
- Division of GastroenterologyDepartment of MedicineUniversity of WashingtonSeattleWAUSA
- Research and DevelopmentVeterans Affairs Puget Sound Health Care SystemSeattleWAUSA
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17
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Dutta M, Weigel KM, Patten KT, Valenzuela AE, Wallis C, Bein KJ, Wexler AS, Lein PJ, Cui JY. Chronic exposure to ambient traffic-related air pollution (TRAP) alters gut microbial abundance and bile acid metabolism in a transgenic rat model of Alzheimer's disease. Toxicol Rep 2022; 9:432-444. [PMID: 35310146 PMCID: PMC8927974 DOI: 10.1016/j.toxrep.2022.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/03/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
Background Traffic-related air pollution (TRAP) is linked to increased risk for age-related dementia, including Alzheimer's disease (AD). The gut microbiome is posited to influence AD risk, and an increase in microbial-derived secondary bile acids (BAs) is observed in AD patients. We recently reported that chronic exposure to ambient TRAP modified AD risk in a sex-dependent manner in the TgF344 AD (TG) rat. Objectives In this study, we used samples from the same cohort to test our hypothesis that TRAP sex-dependently produces gut dysbiosis and increases secondary BAs to a larger extent in the TG rat relative to wildtype (WT) controls. Methods Male and female TG and age-matched WT rats were exposed to either filtered air (FA) or TRAP from 28 days up to 15 months of age (n = 5-6). Tissue samples were collected after 9 or 14months of exposure. Results At 10 months of age, TRAP tended to decrease the alpha diversity as well as the beneficial taxa Lactobacillus and Ruminococcus flavefaciens uniquely in male TG rats as determined by 16 S rDNA sequencing. A basal decrease in Firmicutes/Bacteroidetes (F/B) ratio was also noted in TG rats at 10 months. At 15 months of age, TRAP altered inflammation-related bacteria in the gut of female rats from both genotypes. BAs were more affected by chronic TRAP exposure in females, with a general trend of increase in host-produced unconjugated primary and microbiota-produced secondary BAs. Most of the mRNAs of the hepatic BA-processing genes were not altered by TRAP, except for a down-regulation of the BA-uptake transporter Ntcp in males. Conclusion In conclusion, chronic TRAP exposure produced distinct gut dysbiosis and altered BA homeostasis in a sex and host genotype-specific manner.
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Affiliation(s)
- Moumita Dutta
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Kris M. Weigel
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Kelley T. Patten
- Department of Molecular Biosciences, University of California Davis (UC Davis) School of Veterinary Medicine, Davis, CA, USA
| | - Anthony E. Valenzuela
- Department of Molecular Biosciences, University of California Davis (UC Davis) School of Veterinary Medicine, Davis, CA, USA
| | | | - Keith J. Bein
- Air Quality Research Center, UC Davis, Davis, CA, USA
- Center for Health and the Environment, UC Davis, Davis, CA, USA
| | - Anthony S. Wexler
- Air Quality Research Center, UC Davis, Davis, CA, USA
- Mechanical and Aerospace Engineering, Civil and Environmental Engineering, and Land, Air and Water Resources, UC Davis, Davis, CA, USA
| | - Pamela J. Lein
- Department of Molecular Biosciences, University of California Davis (UC Davis) School of Veterinary Medicine, Davis, CA, USA
| | - Julia Yue Cui
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
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18
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Zhao X, Shi Z. Legacy brominated flame retardants in human milk from the general population in Beijing, China: Biomonitoring, temporal trends from 2011 to 2018, and nursing infant's exposure assessment. CHEMOSPHERE 2021; 285:131533. [PMID: 34273701 DOI: 10.1016/j.chemosphere.2021.131533] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 05/06/2023]
Abstract
Three kinds of legacy brominated flame retardants (BFRs), including eight polybrominated diphenyl ether (PBDE) congeners, tetrabromobisphenol A (TBBPA), and three hexabromocyclododecane (HBCDD) isomers, were analyzed in 105 human milk samples collected in 2018 from Beijing, China. The tested BFRs all showed high detection frequencies, and HBCDD was the most abundant BFR, with a median level of 7.64 × 103 pg/g lipid, followed by BDE-153 (389 pg/g lipid), BDE-209 (283 pg/g lipid), and TBBPA (271 pg/g lipid). By comparing the results of the present study with those of our previous Beijing human milk surveys conducted in 2014 and 2011, the contamination of TBBPA and HBCDD increased steadily from 2011 to 2018, whereas that of PBDEs decreased sharply during this period. Our results suggested that the production and consumption of BFRs in China have shifted from PBDEs to other FRs. Education level and the consumption of animal-derived foods such as eggs and meat were identified as major influencing factors for some BFRs. For nursing infants, the median levels of lower bound BFR daily intake via human milk ingestion ranged from 4.62 × 10-2 ng/kg bw/day for BDE-154 to 30.6 ng/kg bw/day for HBCDD. The daily intake of most BFRs by breastfeeding is unlikely to pose significant health risks for Beijing nursing infants. However, the minimum margin of exposure (MOE) of HBCDD was below its threshold value, which indicated that its daily intake might raise health concerns for some breastfed infants.
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Affiliation(s)
- Xuezhen Zhao
- School of Public Health and Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Zhixiong Shi
- School of Public Health and Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
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19
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Boutot ME, Whitcomb BW, Abdelouahab N, Baccarelli AA, Boivin A, Caku A, Gillet V, Martinez G, Pasquier JC, Zhu J, Takser L, St-Cyr L, Suvorov A. In Utero Exposure to Persistent Organic Pollutants and Childhood Lipid Levels. Metabolites 2021; 11:657. [PMID: 34677372 PMCID: PMC8540619 DOI: 10.3390/metabo11100657] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/21/2021] [Accepted: 09/24/2021] [Indexed: 12/15/2022] Open
Abstract
Animal studies have shown that developmental exposures to polybrominated diphenyl ethers (PBDE) permanently affect blood/liver balance of lipids. No human study has evaluated associations between in utero exposures to persistent organic pollutants (POPs) and later life lipid metabolism. In this pilot, maternal plasma levels of PBDEs (BDE-47, BDE-99, BDE-100, and BDE-153) and polychlorinated biphenyls (PCB-138, PCB-153, and PCB-180) were determined at delivery in participants of GESTation and Environment (GESTE) cohort. Total cholesterol (TCh), triglycerides (TG), low- and high-density lipoproteins (LDL-C and HDL-C), total lipids (TL), and PBDEs were determined in serum of 147 children at ages 6-7. General linear regression was used to estimate the relationship between maternal POPs and child lipid levels with adjustment for potential confounders, and adjustment for childhood POPs. In utero BDE-99 was associated with lower childhood levels of TG (p = 0.003), and non-significantly with HDL-C (p = 0.06) and TL (p = 0.07). Maternal PCB-138 was associated with lower childhood levels of TG (p = 0.04), LDL-C (p = 0.04), and TL (p = 0.02). Our data indicate that in utero exposures to POPs may be associated with long lasting decrease in circulating lipids in children, suggesting increased lipid accumulation in the liver, a mechanism involved in NAFLD development, consistent with previously reported animal data.
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Affiliation(s)
- Maegan E. Boutot
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA; (M.E.B.); (B.W.W.)
| | - Brian W. Whitcomb
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA; (M.E.B.); (B.W.W.)
| | - Nadia Abdelouahab
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada; (N.A.); (J.-C.P.)
| | - Andrea A. Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA;
| | - Amélie Boivin
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada; (A.B.); (V.G.); (L.S.-C.)
| | - Artuela Caku
- Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada;
| | - Virginie Gillet
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada; (A.B.); (V.G.); (L.S.-C.)
| | - Guillaume Martinez
- Department of Chemistry, Faculty of Sciences, Sherbrooke, QC J1K 2R1, Canada;
| | - Jean-Charles Pasquier
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada; (N.A.); (J.-C.P.)
| | - Jiping Zhu
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON K1A 0K9, Canada;
| | - Larissa Takser
- Department of Pediatrics & Department of Psychiatry, Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada;
| | - Lindsay St-Cyr
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada; (A.B.); (V.G.); (L.S.-C.)
| | - Alexander Suvorov
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA; (M.E.B.); (B.W.W.)
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA
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20
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Petrov ME, Jiao N, Panchanathan SS, Reifsnider E, Coonrod DV, Liu L, Krajmalnik-Brown R, Gu H, Davidson LA, Chapkin RS, Whisner CM. Protocol of the Snuggle Bug/Acurrucadito Study: a longitudinal study investigating the influences of sleep-wake patterns and gut microbiome development in infancy on rapid weight gain, an early risk factor for obesity. BMC Pediatr 2021; 21:374. [PMID: 34465311 PMCID: PMC8405858 DOI: 10.1186/s12887-021-02832-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/09/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Overweight, obesity, and associated comorbidities are a pressing global issue among children of all ages, particularly among low-income populations. Rapid weight gain (RWG) in the first 6 months of infancy contributes to childhood obesity. Suboptimal sleep-wake patterns and gut microbiota (GM) have also been associated with childhood obesity, but little is known about their influences on early infant RWG. Sleep may alter the GM and infant metabolism, and ultimately impact obesity; however, data on the interaction between sleep-wake patterns and GM development on infant growth are scarce. In this study, we aim to investigate associations of infant sleep-wake patterns and GM development with RWG at 6 months and weight gain at 12 months. We also aim to evaluate whether temporal interactions exist between infant sleep-wake patterns and GM, and if these relations influence RWG. METHODS The Snuggle Bug/ Acurrucadito study is an observational, longitudinal study investigating whether 24-h, actigraphy-assessed, sleep-wake patterns and GM development are associated with RWG among infants in their first year. Based on the Ecological Model of Growth, we propose a novel conceptual framework to incorporate sleep-wake patterns and the GM as metabolic contributors for RWG in the context of maternal-infant interactions, and familial and socio-physical environments. In total, 192 mother-infant pairs will be recruited, and sleep-wake patterns and GM development assessed at 3 and 8 weeks, and 3, 6, 9, and 12 months postpartum. Covariates including maternal and child characteristics, family and environmental factors, feeding practices and dietary intake of infants and mothers, and stool-derived metabolome and exfoliome data will be assessed. The study will apply machine learning techniques combined with logistic time-varying effect models to capture infant growth and aid in elucidating the dynamic associations between study variables and RWG. DISCUSSION Repeated, valid, and objective assessment at clinically and developmentally meaningful intervals will provide robust measures of longitudinal sleep, GM, and growth. Project findings will provide evidence for future interventions to prevent RWG in infancy and subsequent obesity. The work also may spur the development of evidence-based guidelines to address modifiable factors that influence sleep-wake and GM development and prevent childhood obesity.
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Affiliation(s)
- Megan E Petrov
- Edson College of Nursing and Health Innovation, Arizona State University, 550 N. 3rd Street, Suite 301, Phoenix, AZ, 85004, USA
| | - Nana Jiao
- Edson College of Nursing and Health Innovation, Arizona State University, 550 N. 3rd Street, Suite 301, Phoenix, AZ, 85004, USA
| | - Sarada S Panchanathan
- Valleywise Comprehensive Health Center - Phoenix (Pediatric Clinic), 2525 E. Roosevelt St., Phoenix, AZ, 85008, USA
- College of Medicine Phoenix, University of Arizona, Phoenix, AZ, 85007, USA
| | - Elizabeth Reifsnider
- Edson College of Nursing and Health Innovation, Arizona State University, 550 N. 3rd Street, Suite 301, Phoenix, AZ, 85004, USA
| | - Dean V Coonrod
- Valleywise Health, Department of Obstetrics and Gynecology, 2525 E. Roosevelt St., Phoenix, AZ, 85008, USA
| | - Li Liu
- Biodesign Institute, Arizona State University, 1001 S. McAllister Ave BDA230B, Tempe, AZ, 85287, USA
| | - Rosa Krajmalnik-Brown
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S. McAllister Ave, PO Box 875701, Tempe, AZ, 85287, USA
| | - Haiwei Gu
- College of Health Solutions, Arizona State University, 550 N. 3rd. Street, Suite 501, Phoenix, AZ, 85004, USA
| | - Laurie A Davidson
- Department of Nutrition and Food Science, Program in Integrative Nutrition and Complex Diseases, Texas A&M University, 2253 TAMU, 112 Cater-Mattil, College Station, TX, 77843, USA
| | - Robert S Chapkin
- Department of Nutrition and Food Science, Program in Integrative Nutrition and Complex Diseases, Texas A&M University, 2253 TAMU, 112 Cater-Mattil, College Station, TX, 77843, USA
| | - Corrie M Whisner
- College of Health Solutions, Arizona State University, 550 N. 3rd. Street, Suite 501, Phoenix, AZ, 85004, USA.
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21
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Lim JJ, Dutta M, Dempsey JL, Lehmler HJ, MacDonald J, Bammler T, Walker C, Kavanagh TJ, Gu H, Mani S, Cui JY. Neonatal Exposure to BPA, BDE-99, and PCB Produces Persistent Changes in Hepatic Transcriptome Associated With Gut Dysbiosis in Adult Mouse Livers. Toxicol Sci 2021; 184:83-103. [PMID: 34453844 PMCID: PMC8557404 DOI: 10.1093/toxsci/kfab104] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Recent evidence suggests that complex diseases can result from early life exposure to environmental toxicants. Polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs) are persistent organic pollutants (POPs) and remain a continuing risk to human health despite being banned from production. Developmental BPA exposure mediated-adult onset of liver cancer via epigenetic reprogramming mechanisms has been identified. Here, we investigated whether the gut microbiome and liver can be persistently reprogrammed following neonatal exposure to POPs, and the associations between microbial biomarkers and disease-prone changes in the hepatic transcriptome in adulthood, compared with BPA. C57BL/6 male and female mouse pups were orally administered vehicle, BPA, BDE-99 (a breast milk-enriched PBDE congener), or the Fox River PCB mixture (PCBs), once daily for three consecutive days (postnatal days [PND] 2-4). Tissues were collected at PND5 and PND60. Among the three chemicals investigated, early life exposure to BDE-99 produced the most prominent developmental reprogramming of the gut-liver axis, including hepatic inflammatory and cancer-prone signatures. In adulthood, neonatal BDE-99 exposure resulted in a persistent increase in Akkermansia muciniphila throughout the intestine, accompanied by increased hepatic levels of acetate and succinate, the known products of A. muciniphila. In males, this was positively associated with permissive epigenetic marks H3K4me1 and H3K27, which were enriched in loci near liver cancer-related genes that were dysregulated following neonatal exposure to BDE-99. Our findings provide novel insights that early life exposure to POPs can have a life-long impact on disease risk, which may partly be regulated by the gut microbiome.
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Affiliation(s)
- Joe Jongpyo Lim
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Moumita Dutta
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Joseph L Dempsey
- Division of Gastroenterology, Department of Medicine, School of Medicine, University of Washington, Seattle, Washington, USA,Center for Microbiome Sciences and Therapeutics, School of Medicine, University of Washington, Seattle, Washington, USA
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, University of Iowa, Iowa City, Iowa, USA
| | - James MacDonald
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Theo Bammler
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Cheryl Walker
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas 77030, USA,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA,Department of Medicine, Baylor College of Medicine, Houston, Texas 77030, USA,Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas 77030, USA,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Terrance J Kavanagh
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Haiwei Gu
- Arizona Metabolomics Laboratory, College of Health Solutions, Arizona State University, Pheonix, Arizona 85004, USA
| | - Sridhar Mani
- Department of Medicine, Molecular Pharmacology and Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Julia Yue Cui
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA,To whom correspondence should be addressed at Department of Environmental and Occupational Health Sciences, University of Washington, 4225 Roosevelt Way NE, Seattle, WA 98105, USA. E-mail:
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22
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Le Magueresse-Battistoni B. Adipose Tissue and Endocrine-Disrupting Chemicals: Does Sex Matter? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249403. [PMID: 33333918 PMCID: PMC7765367 DOI: 10.3390/ijerph17249403] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/10/2020] [Accepted: 12/14/2020] [Indexed: 12/21/2022]
Abstract
Obesity and metabolic-related diseases, among which diabetes, are prominent public health challenges of the 21st century. It is now well acknowledged that pollutants are a part of the equation, especially endocrine-disrupting chemicals (EDCs) that interfere with the hormonal aspect. The aim of the review is to focus on adipose tissue, a central regulator of energy balance and metabolic homeostasis, and to highlight the significant differences in the endocrine and metabolic aspects of adipose tissue between males and females which likely underlie the differences of the response to exposure to EDCs between the sexes. Moreover, the study also presents an overview of several mechanisms of action by which pollutants could cause adipose tissue dysfunction. Indeed, a better understanding of the mechanism by which environmental chemicals target adipose tissue and cause metabolic disturbances, and how these mechanisms interact and sex specificities are essential for developing mitigating and sex-specific strategies against metabolic diseases of chemical origin. In particular, considering that a scenario without pollutant exposure is not a realistic option in our current societies, attenuating the deleterious effects of exposure to pollutants by acting on the gut-adipose tissue axis may constitute a new direction of research.
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Affiliation(s)
- Brigitte Le Magueresse-Battistoni
- Univ-Lyon, CarMeN Laboratory, INSERM U1060, INRAé U1397, Université Claude Bernard Lyon1, F-69310 Pierre-Bénite, France; ; Tel.: +33-(0)-426235919; Fax: +33-(0)-426235916
- CarMeN Laboratory, INSERM U1060, Hopital Lyon-Sud, Bâtiment CENS ELI-2D, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
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23
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Portincasa P, Di Ciaula A, Garruti G, Vacca M, De Angelis M, Wang DQH. Bile Acids and GPBAR-1: Dynamic Interaction Involving Genes, Environment and Gut Microbiome. Nutrients 2020; 12:E3709. [PMID: 33266235 PMCID: PMC7760347 DOI: 10.3390/nu12123709] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023] Open
Abstract
Bile acids (BA) are amphiphilic molecules synthesized in the liver from cholesterol. BA undergo continuous enterohepatic recycling through intestinal biotransformation by gut microbiome and reabsorption into the portal tract for uptake by hepatocytes. BA are detergent molecules aiding the digestion and absorption of dietary fat and fat-soluble vitamins, but also act as important signaling molecules via the nuclear receptor, farnesoid X receptor (FXR), and the membrane-associated G protein-coupled bile acid receptor 1 (GPBAR-1) in the distal intestine, liver and extra hepatic tissues. The hydrophilic-hydrophobic balance of the BA pool is finely regulated to prevent BA overload and liver injury. By contrast, hydrophilic BA can be hepatoprotective. The ultimate effects of BA-mediated activation of GPBAR-1 is poorly understood, but this receptor may play a role in protecting the remnant liver and in maintaining biliary homeostasis. In addition, GPBAR-1 acts on pathways involved in inflammation, biliary epithelial barrier permeability, BA pool hydrophobicity, and sinusoidal blood flow. Recent evidence suggests that environmental factors influence GPBAR-1 gene expression. Thus, targeting GPBAR-1 might improve liver protection, facilitating beneficial metabolic effects through primary prevention measures. Here, we discuss the complex pathways linked to BA effects, signaling properties of the GPBAR-1, mechanisms of liver damage, gene-environment interactions, and therapeutic aspects.
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Affiliation(s)
- Piero Portincasa
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy;
| | - Agostino Di Ciaula
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy;
| | - Gabriella Garruti
- Section of Endocrinology, Department of Emergency and Organ Transplantations, University of Bari “Aldo Moro” Medical School, Piazza G. Cesare 11, 70124 Bari, Italy;
| | - Mirco Vacca
- Dipartimento di Scienze del Suolo, Della Pianta e Degli Alimenti, Università degli Studi di Bari Aldo Moro, 70124 Bari, Italy; (M.V.); (M.D.A.)
| | - Maria De Angelis
- Dipartimento di Scienze del Suolo, Della Pianta e Degli Alimenti, Università degli Studi di Bari Aldo Moro, 70124 Bari, Italy; (M.V.); (M.D.A.)
| | - David Q.-H. Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA;
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