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Guilloteau E, Coll P, Lu Z, Djouina M, Cazaunau M, Waxin C, Bergé A, Caboche S, Gratien A, Al Marj E, Hot D, Dubuquoy L, Launay D, Vignal C, Lanone S, Body-Malapel M. Murine in utero exposure to simulated complex urban air pollution disturbs offspring gut maturation and microbiota during intestinal suckling-to-weaning transition in a sex-dependent manner. Part Fibre Toxicol 2022; 19:41. [PMID: 35706036 PMCID: PMC9199156 DOI: 10.1186/s12989-022-00481-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 05/25/2022] [Indexed: 11/23/2022] Open
Abstract
Background Emerging data indicate that prenatal exposure to air pollution may lead to higher susceptibility to several non-communicable diseases. Limited research has been conducted due to difficulties in modelling realistic air pollution exposure. In this study, pregnant mice were exposed from gestational day 10–17 to an atmosphere representative of a 2017 pollution event in Beijing, China. Intestinal homeostasis and microbiota were assessed in both male and female offspring during the suckling-to-weaning transition. Results Sex-specific differences were observed in progeny of gestationally-exposed mice. In utero exposed males exhibited decreased villus and crypt length, vacuolation abnormalities, and lower levels of tight junction protein ZO-1 in ileum. They showed an upregulation of absorptive cell markers and a downregulation of neonatal markers in colon. Cecum of in utero exposed male mice also presented a deeply unbalanced inflammatory pattern. By contrast, in utero exposed female mice displayed less severe intestinal alterations, but included dysregulated expression of Lgr5 in colon, Tjp1 in cecum, and Epcam, Car2 and Sis in ileum. Moreover, exposed female mice showed dysbiosis characterized by a decreased weighted UniFrac β-diversity index, a higher abundance of Bacteroidales and Coriobacteriales orders, and a reduced Firmicutes/Bacteroidetes ratio. Conclusion Prenatal realistic modelling of an urban air pollution event induced sex-specific precocious alterations of structural and immune intestinal development in mice. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00481-y.
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Affiliation(s)
- Eva Guilloteau
- Univ. Lille, INSERM, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000, Lille, France
| | - Patrice Coll
- Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013, Paris, France
| | - Zhuyi Lu
- Univ. Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France
| | - Madjid Djouina
- Univ. Lille, INSERM, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000, Lille, France
| | - Mathieu Cazaunau
- Univ. Paris Est Créteil and Université Paris Cité, CNRS, LISA, 94010, Créteil, France
| | - Christophe Waxin
- Univ. Lille, INSERM, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000, Lille, France
| | - Antonin Bergé
- Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013, Paris, France
| | - Ségolène Caboche
- Univ. Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, UMR2014-US41-PLBS-Plateformes Lilloises de Biologie & Santé, 59000, Lille, France
| | - Aline Gratien
- Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013, Paris, France
| | - Elie Al Marj
- Université Paris Cité and Univ Paris Est Créteil, CNRS, LISA, 75013, Paris, France
| | - David Hot
- Univ. Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, UMR2014-US41-PLBS-Plateformes Lilloises de Biologie & Santé, 59000, Lille, France
| | - Laurent Dubuquoy
- Univ. Lille, INSERM, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000, Lille, France
| | - David Launay
- Univ. Lille, INSERM, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000, Lille, France
| | - Cécile Vignal
- Univ. Lille, INSERM, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000, Lille, France
| | - Sophie Lanone
- Univ. Paris Est Créteil, INSERM, IMRB, 94010, Créteil, France
| | - Mathilde Body-Malapel
- Univ. Lille, INSERM, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, 59000, Lille, France.
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