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J Hazard Mater

Title:		Exposure to polyethylene microplastics alters immature gut microbiome in an infant in vitro gut model
Author(s):		Fournier E; Ratel J; Denis S; Leveque M; Ruiz P; Mazal C; Amiard F; Edely M; Bezirard V; Gaultier E; Lamas B; Houdeau E; Engel E; Lagarde F; Etienne-Mesmin L; Mercier-Bonin M; Blanquet-Diot S;
Address:		"Universite Clermont Auvergne, INRAE, UMR 454 MEDIS, F-63000 Clermont-Ferrand, France; Toxalim, Research Centre in Food Toxicology, INRAE, ENVT, INP-Purpan, UPS, Universite de Toulouse, F-31000 Toulouse, France. INRAE, UR QuaPA, MASS Team, F-63122 Saint-Genes-Champanelle, France. Universite Clermont Auvergne, INRAE, UMR 454 MEDIS, F-63000 Clermont-Ferrand, France. Toxalim, Research Centre in Food Toxicology, INRAE, ENVT, INP-Purpan, UPS, Universite de Toulouse, F-31000 Toulouse, France. Le Mans Universite, IMMM UMR-CNRS 6283, Avenue Olivier Messiaen, F-72085 Cedex 9 Le Mans, France. Toxalim, Research Centre in Food Toxicology, INRAE, ENVT, INP-Purpan, UPS, Universite de Toulouse, F-31000 Toulouse, France. Electronic address: muriel.mercier-bonin@inrae.fr. Universite Clermont Auvergne, INRAE, UMR 454 MEDIS, F-63000 Clermont-Ferrand, France. Electronic address: stephanie.blanquet@uca.fr"
Journal Title:		J Hazard Mater
Year:		2023
Volume:		20221111
Issue:		Pt B
Page Number:		130383 -
DOI:		10.1016/j.jhazmat.2022.130383
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"Infants are characterized by an immaturity of the gut ecosystem and a high exposure to microplastics (MPs) through diet, dust and suckling. However, the bidirectional interactions between MPs and the immature infant intestinal microbiota remain unknown. Our study aims to investigate the impact of chronic exposure to polyethylene (PE) MPs on the gut microbiota and intestinal barrier of infants, using the new Toddler mucosal Artificial Colon coupled with a co-culture of epithelial and mucus-secreting cells. Gut microbiota composition was determined by 16S metabarcoding and microbial activities were evaluated by gas, short chain fatty acid and volatolomics analyses. Gut barrier integrity was assessed via evaluation of intestinal permeability, inflammation and mucus synthesis. Exposure to PE MPs induced gut microbial shifts increasing alpha-diversity and abundance of potentially harmful pathobionts, such as Dethiosulfovibrionaceae and Enterobacteriaceae. Those changes were associated to butyrate production decrease and major changes in volatile organic compounds profiles. In contrast, no significant impact of PE MPs on the gut barrier, as mediated by microbial metabolites, was reported. For the first time, this study indicates that ingestion of PE MPs can induce perturbations in the gut microbiome of infants. Next step would be to further investigate the potential vector effect of MPs"
Keywords:		Humans Infant *Polyethylene/toxicity Microplastics *Gastrointestinal Microbiome Plastics Ecosystem Cellular models Gut microbiota in vitro gut models;
Notes:		"MedlineFournier, Elora Ratel, Jeremy Denis, Sylvain Leveque, Mathilde Ruiz, Philippe Mazal, Carine Amiard, Frederic Edely, Mathieu Bezirard, Valerie Gaultier, Eric Lamas, Bruno Houdeau, Eric Engel, Erwan Lagarde, Fabienne Etienne-Mesmin, Lucie Mercier-Bonin, Muriel Blanquet-Diot, Stephanie eng Research Support, Non-U.S. Gov't Netherlands 2022/11/30 J Hazard Mater. 2023 Feb 5; 443(Pt B):130383. doi: 10.1016/j.jhazmat.2022.130383. Epub 2022 Nov 11"