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Calatayud M, Xiong C, Selma-Royo M, van de Wiele T. Arsenolipids reduce butyrate levels and influence human gut microbiota in a donor-dependent way. Ecotoxicol Environ Saf 2022; 246:114175. [PMID: 36252516 DOI: 10.1016/j.ecoenv.2022.114175] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Arsenolipids are organic arsenic species with variable toxicity. Accurate assessment of the risks derived from arsenic-contaminated seafood intake requires studying the interplay between arsenolipids and the human gut microbiota. This research used the in vitro mucosal simulator of the human intestinal microbial ecosystem (M-SHIME) to assess the effect of defined chemical standards of arsenolipids (AsFA 362 and AsHC 332) on a simulated healthy human gut microbiota (n = 4). Microbial-derived metabolites were quantified by gas chromatography and microbiota structure was characterized by 16S rRNA gene sequencing. A specific reduction in butyrate production (control=5.28 ± 0.3 mM; AsFAs=4.56 ± 0.4 mM; AsHC 332=4.4 ± 0.6 mM, n = 4 donors), concomitant with a reduction in the abundance of Lachnospiraceae UCG-004 group and the Faecalibacterium genus was observed, albeit in a donor-dependent manner. Furthermore, an increase in Escherichia/Shigella, Proteobacteria and Fusobacterium abundance was observed after arsenolipid treatments, depending on individual microbiota background. These alterations in microbial functionality and microbial community structure suggest a detrimental effect of arsenolipids intake towards the commensal gut microbiome, and consequently, on human health.
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Affiliation(s)
- Marta Calatayud
- Center for Microbial Ecology and Technology, Faculty of Bioscience Engineering, Coupure Links 653, Ghent University, 9000 Ghent, Belgium.
| | - Chan Xiong
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria.
| | - Marta Selma-Royo
- Department of Biotechnology, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Paterna,Valencia, Spain; CIBIO - Centre for Integrative Biolo, Università degli Studi di Trento, Italy
| | - Tom van de Wiele
- Center for Microbial Ecology and Technology, Faculty of Bioscience Engineering, Coupure Links 653, Ghent University, 9000 Ghent, Belgium
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Xiong C, Calatayud M, van de Wiele T, Francesconi K. Gut microbiota metabolize arsenolipids in a donor dependent way. Ecotoxicol Environ Saf 2022; 239:113662. [PMID: 35617903 DOI: 10.1016/j.ecoenv.2022.113662] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/03/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
Understanding the interplay between the gut microbiome and arsenolipids can help us manage the potential health risk of consuming seafood, but little is known about the bioconversion fate of arsenolipids in the gastrointestinal tract. We use an in vitro mucosal simulator of the human intestinal microbial ecosystem (M-SHIME) to mimic the digestive tract of four healthy donors during exposure to two arsenolipids (an arsenic fatty acid AsFA 362 or an arsenic hydrocarbon AsHC 332). The metabolites were analyzed by HPLC-mass spectrometry. The human gut bacteria accumulated arsenolipids in a donor-dependent way, with higher retention of AsHC 332. Colonic microbiota partly transformed both arsenolipids to their thioxo analogs, while AsFA 362 was additionally transformed into arsenic-containing fatty esters, arsenic-containing fatty alcohols, and arsenic-containing sterols. There was no significant difference in water-soluble arsenicals between arsenolipid treatments. The study shows that arsenolipids can be quickly biotransformed into several lipid-soluble arsenicals of unknown toxicity, which cannot be excluded when considering potential implications on human health.
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Affiliation(s)
- Chan Xiong
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria.
| | - Marta Calatayud
- Center for Microbial Ecology and Technology, Faculty of Bioscience Engineering, Coupure Links 653, Ghent University, 9000 Ghent, Belgium.
| | - Tom van de Wiele
- Center for Microbial Ecology and Technology, Faculty of Bioscience Engineering, Coupure Links 653, Ghent University, 9000 Ghent, Belgium
| | - Kevin Francesconi
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria
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Lambrecht E, Van Coillie E, Boon N, Heyndrickx M, Van de Wiele T. Transfer of Antibiotic Resistance Plasmid from Commensal E. coli Towards Human Intestinal Microbiota in the M-SHIME: Effect of E. coli dosis, Human Individual and Antibiotic Use. Life (Basel) 2021; 11:192. [PMID: 33670965 PMCID: PMC7997361 DOI: 10.3390/life11030192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/09/2023] Open
Abstract
Along with (in) direct contact with animals and a contaminated environment, humans are exposed to antibiotic-resistant bacteria by consumption of food. The implications of ingesting antibiotic-resistant commensal bacteria are unknown, as dose-response data on resistance transfer and spreading in our gut is lacking. In this study, transfer of a resistance plasmid (IncF), harbouring several antibiotic resistance genes, from a commensal E. coli strain towards human intestinal microbiota was assessed using a Mucosal Simulator of the Human Intestinal Ecosystem (M-SHIME). More specifically, the effect of the initial E. coli plasmid donor concentration (105 and 107 CFU/meal), antibiotic treatment (cefotaxime) and human individual (n = 6) on plasmid transfer towards lumen coliforms and anaerobes was determined. Transfer of the resistance plasmid to luminal coliforms and anaerobes was observed shortly after the donor strain arrived in the colon and was independent of the ingested dose. Transfer occurred in all six simulated colons and despite their unique microbial community composition, no differences could be detected in antibiotic resistance transfer rates between the simulated human colons. After 72 h, resistant coliform transconjugants levels ranged from 7.6 × 104 to 7.9 × 106 CFUcefotaxime resistant/Ml colon lumen. Presence of the resistance plasmid was confirmed and quantified by PCR and qPCR. Cefotaxime treatment led to a significant reduction (85%) in resistant coliforms, however no significant effect on the total number of cultivable coliforms and anaerobes was observed.
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Affiliation(s)
- Ellen Lambrecht
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000 Gent, Belgium; (E.L.); (N.B.)
- Flanders Research Institute for Agriculture (ILVO), Fisheries and Food, Brusselsesteenweg 370, 9090 Melle, Belgium; (E.V.C.); (M.H.)
| | - Els Van Coillie
- Flanders Research Institute for Agriculture (ILVO), Fisheries and Food, Brusselsesteenweg 370, 9090 Melle, Belgium; (E.V.C.); (M.H.)
| | - Nico Boon
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000 Gent, Belgium; (E.L.); (N.B.)
| | - Marc Heyndrickx
- Flanders Research Institute for Agriculture (ILVO), Fisheries and Food, Brusselsesteenweg 370, 9090 Melle, Belgium; (E.V.C.); (M.H.)
- Department of Pathology, Bacteriology and Avian Diseases, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000 Gent, Belgium; (E.L.); (N.B.)
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Marzorati M, Abbeele PVD, Bubeck SS, Bayne T, Krishnan K, Young A, Mehta D, DeSouza A. Bacillus subtilis HU58 and Bacillus coagulans SC208 Probiotics Reduced the Effects of Antibiotic-Induced Gut Microbiome Dysbiosis in An M-SHIME® Model. Microorganisms 2020; 8:E1028. [PMID: 32664604 DOI: 10.3390/microorganisms8071028] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/03/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022] Open
Abstract
Benefits associated with probiotic use have been reported; however, the mechanisms behind these benefits are poorly understood. The effects of a probiotic formulation (MegaDuo™) containing Bacillus coagulans SC208 and Bacillus subtilis HU58 on intestinal permeability and immune markers was assessed using a combination of the in vitro gut model, the mucosal simulator of the human intestinal microbial ecosystem (M-SHIME®), and an in vitro inflammatory bowel disease-like Caco-2/THP1 co-culture model in both healthy and antibiotic-induced dysbiosis conditions. Established M-SHIME® proximal colon vessels were treated with/without clindamycin (1 week) and then with/without daily MegaDuo™ treatment (2 weeks). The mucosal and luminal microbial communities were sampled weekly. Suspensions were removed from the proximal colon vessels after 1 and 2 weeks of MegaDuo™ treatment and added to the co-culture system. Transepithelial resistance (membrane barrier function), cytokine/chemokine release, and NFκB activity were then measured. Under conditions of antibiotic-induced dysbiosis, suspensions from MegaDuo™ treated vessels showed reduced gut membrane barrier damage and decreased levels of TNFα and IL-6 compared with suspensions from untreated vessels; no appreciable differences were observed under healthy conditions. MegaDuo™ treatment had no effect on NFκB activity of THP1-Blue™ cells. The potential benefits of MegaDuo™ treatment appeared most evident after 2 weeks of treatment.
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Rolhion N, Chassaing B, Nahori MA, de Bodt J, Moura A, Lecuit M, Dussurget O, Bérard M, Marzorati M, Fehlner-Peach H, Littman DR, Gewirtz AT, Van de Wiele T, Cossart P. A Listeria monocytogenes Bacteriocin Can Target the Commensal Prevotella copri and Modulate Intestinal Infection. Cell Host Microbe 2020; 26:691-701.e5. [PMID: 31726031 PMCID: PMC6854461 DOI: 10.1016/j.chom.2019.10.016] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 09/05/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022]
Abstract
Understanding the role of the microbiota components in either preventing or favoring enteric infections is critical. Here, we report the discovery of a Listeria bacteriocin, Lmo2776, which limits Listeria intestinal colonization. Oral infection of conventional mice with a Δlmo2776 mutant leads to a thinner intestinal mucus layer and higher Listeria loads both in the intestinal content and deeper tissues compared to WT Listeria. This latter difference is microbiota dependent, as it is not observed in germ-free mice. Strikingly, it is phenocopied by pre-colonization of germ-free mice before Listeria infection with Prevotella copri, an abundant gut-commensal bacteria, but not with the other commensals tested. We further show that Lmo2776 targets P. copri and reduces its abundance. Together, these data unveil a role for P.copri in exacerbating intestinal infection, highlighting that pathogens such as Listeria may selectively deplete microbiota bacterial species to avoid excessive inflammation. L. monocytogenes secretes a bacteriocin (Lmo2776) homologous to the lactococcin 972 Lmo2776 controls Listeria intestinal colonization in a microbiota-dependent manner Lmo2776 targets the abundant gut commensal Prevotella copri Presence of P. copri exacerbates infection
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Affiliation(s)
- Nathalie Rolhion
- Institut Pasteur, Unité des Interactions Bactéries-Cellules, 75015 Paris, France; Inserm, U604, 75015 Paris, France; INRA, Unité sous-contrat 2020, 75015 Paris, France
| | - Benoit Chassaing
- Neurosciences Institute, Georgia State University (GSU), Atlanta, GA 30303, USA; Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, GSU, Atlanta, GA 30303, USA
| | - Marie-Anne Nahori
- Institut Pasteur, Unité des Interactions Bactéries-Cellules, 75015 Paris, France; Inserm, U604, 75015 Paris, France; INRA, Unité sous-contrat 2020, 75015 Paris, France
| | - Jana de Bodt
- Center of Microbial Ecology and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Alexandra Moura
- Institut Pasteur, Unité Biologie des Infections, 75015 Paris, France; Inserm, U1117, 75015 Paris, France
| | - Marc Lecuit
- Institut Pasteur, Unité Biologie des Infections, 75015 Paris, France; Inserm, U1117, 75015 Paris, France; Paris Descartes University, Sorbonne Paris Cité, Division of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades University Hospital, Institut Imagine, 75743 Paris, France
| | - Olivier Dussurget
- Institut Pasteur, Unité des Interactions Bactéries-Cellules, 75015 Paris, France; Inserm, U604, 75015 Paris, France; INRA, Unité sous-contrat 2020, 75015 Paris, France; Université de Paris, 75013 Paris, France
| | - Marion Bérard
- Animalerie Centrale, Department of Technology and Scientific Programmes, Institut Pasteur, 75015 Paris, France
| | - Massimo Marzorati
- Center of Microbial Ecology and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Hannah Fehlner-Peach
- The Kimmel Center for Biology and Medicine of the Skirball Institute, New York University School of Medicine, New York, NY 10016, USA
| | - Dan R Littman
- The Kimmel Center for Biology and Medicine of the Skirball Institute, New York University School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, New York, NY 10016, USA
| | - Andrew T Gewirtz
- Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, GSU, Atlanta, GA 30303, USA
| | - Tom Van de Wiele
- Center of Microbial Ecology and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Pascale Cossart
- Institut Pasteur, Unité des Interactions Bactéries-Cellules, 75015 Paris, France; Inserm, U604, 75015 Paris, France; INRA, Unité sous-contrat 2020, 75015 Paris, France.
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