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Chollet L, Heumel S, Deruyter L, Bouilloux F, Delval L, Robert V, Gevaert MH, Pichavant M, Sencio V, Robil C, Wolowczuk I, Sokol H, Auger S, Douablin A, Langella P, Chatel JM, Grangette C, Trottein F. Faecalibacterium duncaniae as a novel next generation probiotic against influenza. Front Immunol 2024; 15:1347676. [PMID: 38590519 PMCID: PMC11000806 DOI: 10.3389/fimmu.2024.1347676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/27/2024] [Indexed: 04/10/2024] Open
Abstract
The gut-lung axis is critical during viral respiratory infections such as influenza. Gut dysbiosis during infection translates into a massive drop of microbially produced short-chain fatty acids (SCFAs). Among them, butyrate is important during influenza suggesting that microbiome-based therapeutics targeting butyrate might hold promises. The butyrate-producing bacterium Faecalibacterium duncaniae (formerly referred to as F. prausnitzii) is an emerging probiotic with several health-promoting characteristics. To investigate the potential effects of F. duncaniae on influenza outcomes, mice were gavaged with live F. duncaniae (A2-165 or I-4574 strains) five days before infection. Supplementation of F. duncaniae was associated with less severe disease, a lower pulmonary viral load, and lower levels of lung inflammation. F. duncaniae supplementation impacted on gut dysbiosis induced by infection, as assessed by 16S rRNA sequencing. Interestingly, F. duncaniae administration was associated with a recovery in levels of SCFAs (including butyrate) in infected animals. The live form of F. duncaniae was more potent that the pasteurized form in improving influenza outcomes. Lastly, F. duncaniae partially protected against secondary (systemic) bacterial infection. We conclude that F. duncaniae might serve as a novel next generation probiotic against acute viral respiratory diseases.
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Affiliation(s)
- Loïc Chollet
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - Séverine Heumel
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - Lucie Deruyter
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | | | - Lou Delval
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - Véronique Robert
- Unité Mixte de Recherche 1319 (UMR1319) Micalis, Université Paris-Saclay, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), AgroParisTech, Jouy-en-Josas, France
| | - Marie-Hélène Gevaert
- Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Univ. Lille, Institut Pasteur de Lille, US 41-UAR 2014-PLBS, Lille, France
| | - Muriel Pichavant
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - Valentin Sencio
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - Cyril Robil
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - Isabelle Wolowczuk
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - Harry Sokol
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Recherche Saint-Antoine, Centre de Recherche scientifique Saint-Antoine (CRSA), Assistance Public – Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Gastroenterology Department, Paris, France
- Paris Center for Microbiome Medicine (PaCeMM) Fédérations Hospitalo-Universitaires (FHU), Paris, France
| | - Sandrine Auger
- Unité Mixte de Recherche 1319 (UMR1319) Micalis, Université Paris-Saclay, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), AgroParisTech, Jouy-en-Josas, France
| | | | - Philippe Langella
- Unité Mixte de Recherche 1319 (UMR1319) Micalis, Université Paris-Saclay, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), AgroParisTech, Jouy-en-Josas, France
| | - Jean-Marc Chatel
- Unité Mixte de Recherche 1319 (UMR1319) Micalis, Université Paris-Saclay, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), AgroParisTech, Jouy-en-Josas, France
| | - Corinne Grangette
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
| | - François Trottein
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire (CHU) Lille, Institut Pasteur de Lille, U1019-Unité Mixte de Recherche (UMR) 9017 - CIIL – Centre d′Infection et d′Immunité de Lille, Lille, France
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Botin T, Ramirez-Chamorro L, Vidic J, Langella P, Martin-Verstraete I, Chatel JM, Auger S. The Tolerance of Gut Commensal Faecalibacterium to Oxidative Stress Is Strain Dependent and Relies on Detoxifying Enzymes. Appl Environ Microbiol 2023; 89:e0060623. [PMID: 37382539 PMCID: PMC10370306 DOI: 10.1128/aem.00606-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/12/2023] [Indexed: 06/30/2023] Open
Abstract
Obligate anaerobic bacteria in genus Faecalibacterium are among the most dominant taxa in the colon of healthy individuals and contribute to intestinal homeostasis. A decline in the abundance of this genus is associated with the occurrence of various gastrointestinal disorders, including inflammatory bowel diseases. In the colon, these diseases are accompanied by an imbalance between the generation and elimination of reactive oxygen species (ROS), and oxidative stress is closely linked to disruptions in anaerobiosis. In this work, we explored the impact of oxidative stress on several strains of faecalibacteria. An in silico analysis of complete genomes of faecalibacteria revealed the presence of genes encoding O2- and/or ROS-detoxifying enzymes, including flavodiiron proteins, rubrerythrins, reverse rubrerythrins, superoxide reductases, and alkyl peroxidase. However, the presence and the number of these detoxification systems varied greatly among faecalibacteria. These results were confirmed by O2 stress survival tests, in which we found that strains differed widely in their sensitivity. We showed the protective role of cysteine, which limited the production of extracellular O2•- and improved the survival of Faecalibacterium longum L2-6 under high O2 tension. In the strain F. longum L2-6, we observed that the expression of genes encoding detoxifying enzymes was upregulated in the response to O2 or H2O2 stress but with different patterns of regulation. Based on these results, we propose a first model of the gene regulatory network involved in the response to oxidative stress in F. longum L2-6. IMPORTANCE Commensal bacteria in the genus Faecalibacterium have been proposed for use as next-generation probiotics, but efforts to cultivate and exploit the potential of these strains have been limited by their sensitivity to O2. More broadly, little is known about how commensal and health-associated bacterial species in the human microbiome respond to the oxidative stress that occurs as a result of inflammation in the colon. In this work, we provide insights regarding the genes that encode potential mechanisms of protection against O2 or ROS stress in faecalibacteria, which may facilitate future advances in work with these important bacteria.
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Affiliation(s)
- Tatiana Botin
- Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, Jouy-en-Josas, France
| | - Luis Ramirez-Chamorro
- Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, Jouy-en-Josas, France
| | - Jasmina Vidic
- Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, Jouy-en-Josas, France
| | - Philippe Langella
- Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, Jouy-en-Josas, France
| | - Isabelle Martin-Verstraete
- Institut Pasteur, Université Paris Cité, UMR CNRS 6047, Laboratoire Pathogénèse des Bactéries Anaérobies, Paris, France
- Institut Universitaire de France, Paris, France
| | - Jean-Marc Chatel
- Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, Jouy-en-Josas, France
| | - Sandrine Auger
- Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, Jouy-en-Josas, France
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Martín R, Rios-Covian D, Huillet E, Auger S, Khazaal S, Bermúdez-Humarán LG, Sokol H, Chatel JM, Langella P. Faecalibacterium: a bacterial genus with promising human health applications. FEMS Microbiol Rev 2023; 47:fuad039. [PMID: 37451743 PMCID: PMC10410495 DOI: 10.1093/femsre/fuad039] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 06/08/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023] Open
Abstract
In humans, many diseases are associated with alterations in gut microbiota, namely increases or decreases in the abundance of specific bacterial groups. One example is the genus Faecalibacterium. Numerous studies have underscored that low levels of Faecalibacterium are correlated with inflammatory conditions, with inflammatory bowel disease (IBD) in the forefront. Its representation is also diminished in the case of several diseases, including colorectal cancer (CRC), dermatitis, and depression. Additionally, the relative presence of this genus is considered to reflect, at least in part, intestinal health status because Faecalibacterium is frequently present at reduced levels in individuals with gastrointestinal diseases or disorders. In this review, we first thoroughly describe updates to the taxonomy of Faecalibacterium, which has transformed a single-species taxon to a multispecies taxon over the last decade. We then explore the links discovered between Faecalibacterium abundance and various diseases since the first IBD-focused studies were published. Next, we examine current available strategies for modulating Faecalibacterium levels in the gut. Finally, we summarize the mechanisms underlying the beneficial effects that have been attributed to this genus. Together, epidemiological and experimental data strongly support the use of Faecalibacterium as a next-generation probiotic (NGP) or live biotherapeutic product (LBP).
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Affiliation(s)
- Rebeca Martín
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - David Rios-Covian
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Eugénie Huillet
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Sandrine Auger
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Sarah Khazaal
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Luis G Bermúdez-Humarán
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Harry Sokol
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, F-75012 Paris, France
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, F-75012, Paris, France
| | - Jean-Marc Chatel
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Philippe Langella
- Paris-Saclay University, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
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Landemaine L, Da Costa G, Fissier E, Francis C, Morand S, Verbeke J, Michel ML, Briandet R, Sokol H, Gueniche A, Bernard D, Chatel JM, Aguilar L, Langella P, Clavaud C, Richard ML. Staphylococcus epidermidis isolates from atopic or healthy skin have opposite effect on skin cells: potential implication of the AHR pathway modulation. Front Immunol 2023; 14:1098160. [PMID: 37304256 PMCID: PMC10250813 DOI: 10.3389/fimmu.2023.1098160] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 11/14/2022] [Accepted: 05/04/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction Staphylococcus epidermidis is a commensal bacterium ubiquitously present on human skin. This species is considered as a key member of the healthy skin microbiota, involved in the defense against pathogens, modulating the immune system, and involved in wound repair. Simultaneously, S. epidermidis is the second cause of nosocomial infections and an overgrowth of S. epidermidis has been described in skin disorders such as atopic dermatitis. Diverse isolates of S. epidermidis co-exist on the skin. Elucidating the genetic and phenotypic specificities of these species in skin health and disease is key to better understand their role in various skin conditions. Additionally, the exact mechanisms by which commensals interact with host cells is partially understood. We hypothesized that S. epidermidis isolates identified from different skin origins could play distinct roles on skin differentiation and that these effects could be mediated by the aryl hydrocarbon receptor (AhR) pathway. Methods For this purpose, a library of 12 strains originated from healthy skin (non-hyperseborrheic (NH) and hyperseborrheic (H) skin types) and disease skin (atopic (AD) skin type) was characterized at the genomic and phenotypic levels. Results and discussion Here we showed that strains from atopic lesional skin alter the epidermis structure of a 3D reconstructed skin model whereas strains from NH healthy skin do not. All strains from NH healthy skin induced AhR/OVOL1 path and produced high quantities of indole metabolites in co-culture with NHEK; especially indole-3-aldehyde (IAld) and indole-3-lactic acid (ILA); while AD strains did not induce AhR/OVOL1 path but its inhibitor STAT6 and produced the lowest levels of indoles as compared to the other strains. As a consequence, strains from AD skin altered the differentiation markers FLG and DSG1. The results presented here, on a library of 12 strains, showed that S. epidermidis originated from NH healthy skin and atopic skin have opposite effects on the epidermal cohesion and structure and that these differences could be linked to their capacity to produce metabolites, which in turn could activate AHR pathway. Our results on a specific library of strains provide new insights into how S. epidermidis may interact with the skin to promote health or disease.
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Affiliation(s)
- Leslie Landemaine
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- L’Oréal Research and Innovation, Aulnay-sous-Bois, France
| | - Gregory Da Costa
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine (PaCeMM), Fédération Hospitalo-Universitaire, Paris, France
| | - Elsa Fissier
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine (PaCeMM), Fédération Hospitalo-Universitaire, Paris, France
| | - Carine Francis
- L’Oréal Research and Innovation, Aulnay-sous-Bois, France
| | | | | | - Marie-Laure Michel
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine (PaCeMM), Fédération Hospitalo-Universitaire, Paris, France
| | - Romain Briandet
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Harry Sokol
- Paris Center for Microbiome Medicine (PaCeMM), Fédération Hospitalo-Universitaire, Paris, France
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | | | | | - Jean-Marc Chatel
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine (PaCeMM), Fédération Hospitalo-Universitaire, Paris, France
| | - Luc Aguilar
- L’Oréal Research and Innovation, Aulnay-sous-Bois, France
| | - Philippe Langella
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine (PaCeMM), Fédération Hospitalo-Universitaire, Paris, France
| | - Cecile Clavaud
- L’Oréal Research and Innovation, Aulnay-sous-Bois, France
| | - Mathias L. Richard
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- Paris Center for Microbiome Medicine (PaCeMM), Fédération Hospitalo-Universitaire, Paris, France
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Tanno H, Chatel JM, Martin R, Mariat D, Sakamoto M, Yamazaki M, Salminen S, Gueimonde M, Endo A. New gene markers for classification and quantification of faecalibacterium spp. in the human gut. FEMS Microbiol Ecol 2023; 99:7093396. [PMID: 36990641 PMCID: PMC10093996 DOI: 10.1093/femsec/fiad035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 03/14/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Faecalibacterium prausnitzii is a promising biomarker of a healthy human microbiota. However, previous studies reported the heterogeneity of this species and found the presence of several distinct groups at the species level among F. prausnitzii strains. Our recent study revealed that methods previously developed for quantification of F. prausnitzii were not specific to the species level because of the heterogeneity within the F. prausnitzii species and the application of 16S rRNA gene which is an invalid genetic marker for the species. Therefore, previously available data failed to provide information on different groups, which limits our understanding of the importance of this organism for host health. Here, we propose an alternative gene marker for quantification of F. prausnitzii-related taxa. Nine group-specific primer pairs were designed by targeting rpoA gene sequences. The newly developed rpoA-based qPCR successfully quantified targeted groups. Application of the developed qPCR assay in six healthy adults revealed marked differences in abundance and prevalence among the different targeted-groups in stool samples. The developed assay will facilitate detailed understanding of the impact of Faecalibacterium populations at the group level on human health and to understand the links between depletion of specific groups in Faecalibacterium and different human disorders.
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Affiliation(s)
- Hiroki Tanno
- Department of Food, Aroma and Cosmetic Chemistry, Faculty of Bioindustry, Tokyo University of Agriculture, 099-2493 Hokkaido, Japan
| | - Jean-Marc Chatel
- Université Paris-Saclay, Institut National de la Recherche Agronomique et Environnementale, AgroParisTech, MICALIS UMR1319, Commensals and Probiotics-Host Interactions Laboratory, Jouy-en-Josas, France
| | - Rebeca Martin
- Université Paris-Saclay, Institut National de la Recherche Agronomique et Environnementale, AgroParisTech, MICALIS UMR1319, Commensals and Probiotics-Host Interactions Laboratory, Jouy-en-Josas, France
| | - Denis Mariat
- Université Paris-Saclay, Institut National de la Recherche Agronomique et Environnementale, AgroParisTech, MICALIS UMR1319, Commensals and Probiotics-Host Interactions Laboratory, Jouy-en-Josas, France
| | - Mitsuo Sakamoto
- Microbe Division/Japan Collection of Microorganisms, RIKEN BioResource Research Center, Tsukuba 305-0074 Ibaraki, Japan
| | - Masao Yamazaki
- Department of Food, Aroma and Cosmetic Chemistry, Faculty of Bioindustry, Tokyo University of Agriculture, 099-2493 Hokkaido, Japan
| | - Seppo Salminen
- Functional Food Forum, University of Turku, 20014 Turku, Finland
| | - Miguel Gueimonde
- Department of Microbiology and Biochemistry of Dairy Products, IPLA-CSIC, 33300 Villaviciosa, Spain
| | - Akihito Endo
- Department of Food, Aroma and Cosmetic Chemistry, Faculty of Bioindustry, Tokyo University of Agriculture, 099-2493 Hokkaido, Japan
- Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture, 156-8502 Tokyo, Japan
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Godefroy E, Barbé L, Le Moullac-Vaidye B, Rocher J, Breiman A, Leuillet S, Mariat D, Chatel JM, Ruvoën-Clouet N, Carton T, Jotereau F, Le Pendu J. Microbiota-induced regulatory T cells associate with FUT2-dependent susceptibility to rotavirus gastroenteritis. Front Microbiol 2023; 14:1123803. [PMID: 36922975 PMCID: PMC10008897 DOI: 10.3389/fmicb.2023.1123803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/03/2023] [Indexed: 03/03/2023] Open
Abstract
The FUT2 α1,2fucosyltransferase contributes to the synthesis of fucosylated glycans used as attachment factors by several pathogens, including noroviruses and rotaviruses, that can induce life-threatening gastroenteritis in young children. FUT2 genetic polymorphisms impairing fucosylation are strongly associated with resistance to dominant strains of both noroviruses and rotaviruses. Interestingly, the wild-type allele associated with viral gastroenteritis susceptibility inversely appears to be protective against several inflammatory or autoimmune diseases for yet unclear reasons, although a FUT2 influence on microbiota composition has been observed. Here, we studied a cohort of young healthy adults and showed that the wild-type FUT2 allele was associated with the presence of anti-RVA antibodies, either neutralizing antibodies or serum IgA, confirming its association with the risk of RVA gastroenteritis. Strikingly, it was also associated with the frequency of gut microbiota-induced regulatory T cells (Tregs), so-called DP8α Tregs, albeit only in individuals who had anti-RVA neutralizing antibodies or high titers of anti-RVA IgAs. DP8α Tregs specifically recognize the human symbiont Faecalibacterium prausnitzii, which strongly supports their induction by this anti-inflammatory bacterium. The proportion of F. prausnitzii in feces was also associated with the FUT2 wild-type allele. These observations link the FUT2 genotype with the risk of RVA gastroenteritis, the microbiota and microbiota-induced DP8α Treg cells, suggesting that the anti-RVA immune response might involve an induction/expansion of these T lymphocytes later providing a balanced immunological state that confers protection against inflammatory diseases.
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Affiliation(s)
- Emmanuelle Godefroy
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Laure Barbé
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Béatrice Le Moullac-Vaidye
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Jézabel Rocher
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Adrien Breiman
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France.,CHU de Nantes, Nantes, France
| | | | - Denis Mariat
- INRAE, AgroParisTech, UMR1319, MICALIS, Université Paris Saclay, Jouy en Josas, France
| | - Jean-Marc Chatel
- INRAE, AgroParisTech, UMR1319, MICALIS, Université Paris Saclay, Jouy en Josas, France
| | - Nathalie Ruvoën-Clouet
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France.,ONIRIS, Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation, Nantes, France
| | | | - Francine Jotereau
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Jacques Le Pendu
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
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7
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Américo MF, Freitas ADS, da Silva TF, de Jesus LCL, Barroso FAL, Campos GM, Santos RCV, Gomes GC, Assis R, Ferreira Ê, Mancha-Agresti P, Laguna JG, Chatel JM, Carvalho RDDO, Azevedo V. Growth differentiation factor 11 delivered by dairy Lactococcus lactis strains modulates inflammation and prevents mucosal damage in a mice model of intestinal mucositis. Front Microbiol 2023; 14:1157544. [PMID: 37138633 PMCID: PMC10149842 DOI: 10.3389/fmicb.2023.1157544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/02/2023] [Accepted: 03/30/2023] [Indexed: 05/05/2023] Open
Abstract
Mucositis is an inflammation of the gastrointestinal mucosa that debilitate the quality of life of patients undergoing chemotherapy treatments. In this context, antineoplastic drugs, such as 5-fluorouracil, provokes ulcerations in the intestinal mucosa that lead to the secretion of pro-inflammatory cytokines by activating the NF-κB pathway. Alternative approaches to treat the disease using probiotic strains show promising results, and thereafter, treatments that target the site of inflammation could be further explored. Recently, studies reported that the protein GDF11 has an anti-inflammatory role in several diseases, including in vitro and in vivo results in different experimental models. Hence, this study evaluated the anti-inflammatory effect of GDF11 delivered by Lactococcus lactis strains NCDO2118 and MG1363 in a murine model of intestinal mucositis induced by 5-FU. Our results showed that mice treated with the recombinant lactococci strains presented improved histopathological scores of intestinal damage and a reduction of goblet cell degeneration in the mucosa. It was also observed a significant reduction of neutrophil infiltration in the tissue in comparison to positive control group. Moreover, we observed immunomodulation of inflammatory markers Nfkb1, Nlrp3, Tnf, and upregulation of Il10 in mRNA expression levels in groups treated with recombinant strains that help to partially explain the ameliorative effect in the mucosa. Therefore, the results found in this study suggest that the use of recombinant L. lactis (pExu:gdf11) could offer a potential gene therapy for intestinal mucositis induced by 5-FU.
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Affiliation(s)
- Monique Ferrary Américo
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Andria dos Santos Freitas
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Tales Fernando da Silva
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
- INRAE, Institut Agro Rennes-Angers, STLO, Rennes, France
| | - Luís Cláudio Lima de Jesus
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda Alvarenga Lima Barroso
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Gabriela Munis Campos
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Rhayane Cristina Viegas Santos
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Gabriel Camargos Gomes
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Rafael Assis
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ênio Ferreira
- Department of General Pathology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Juliana Guimarães Laguna
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Jean-Marc Chatel
- INRAE, AgroParisTech, MICALIS, Université Paris-Saclay, Jouy-en-Josas, France
| | - Rodrigo Dias de Oliveira Carvalho
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
- Department of Biochemistry and Biophysics, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Vasco Azevedo
- Department of Genetics, Ecology, and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
- *Correspondence: Vasco Azevedo,
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8
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Pinchaud K, Hafeez Z, Auger S, Chatel JM, Chadi S, Langella P, Paoli J, Dary-Mourot A, Maguin-Gaté K, Olivier JL. Impact of Dietary Arachidonic Acid on Gut Microbiota Composition and Gut-Brain Axis in Male BALB/C Mice. Nutrients 2022; 14:nu14245338. [PMID: 36558497 PMCID: PMC9786182 DOI: 10.3390/nu14245338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Although arachidonic acid (ARA) is the precursor of the majority of eicosanoids, its influence as a food component on health is not well known. Therefore, we investigated its impact on the gut microbiota and gut-brain axis. Groups of male BALB/c mice were fed either a standard diet containing 5% lipids (Std-ARA) or 15%-lipid diets without ARA (HL-ARA) or with 1% ARA (HL + ARA) for 9 weeks. Fatty acid profiles of all three diets were the same. The HL-ARA diet favored the growth of Bifidobacterium pseudolongum contrary to the HL + ARA diet that favored the pro-inflammatory Escherichia-Shigella genus in fecal microbiota. Dietary ARA intake induced 4- and 15-fold colic overexpression of the pro-inflammatory markers IL-1β and CD40, respectively, without affecting those of TNFα and adiponectin. In the brain, dietary ARA intake led to moderate overexpression of GFAP in the hippocampus and cortex. Both the hyperlipidic diets reduced IL-6 and IL-12 in the brain. For the first time, it was shown that dietary ARA altered the gut microbiota, led to low-grade colic inflammation, and induced astrogliosis in the brain. Further work is necessary to determine the involved mechanisms.
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Affiliation(s)
- Katleen Pinchaud
- Calbinotox (UR7488), Université de Lorraine, 54000 Nancy, France
| | - Zeeshan Hafeez
- Calbinotox (UR7488), Université de Lorraine, 54000 Nancy, France
| | - Sandrine Auger
- INRAE, Université Paris-Saclay, AgroParisTech, UMR 1319 Micalis Institute, 78352 Jouy-en-Josas, France
| | - Jean-Marc Chatel
- INRAE, Université Paris-Saclay, AgroParisTech, UMR 1319 Micalis Institute, 78352 Jouy-en-Josas, France
| | - Sead Chadi
- INRAE, Université Paris-Saclay, AgroParisTech, UMR 1319 Micalis Institute, 78352 Jouy-en-Josas, France
| | - Philippe Langella
- INRAE, Université Paris-Saclay, AgroParisTech, UMR 1319 Micalis Institute, 78352 Jouy-en-Josas, France
| | - Justine Paoli
- Calbinotox (UR7488), Université de Lorraine, 54000 Nancy, France
| | | | - Katy Maguin-Gaté
- Calbinotox (UR7488), Université de Lorraine, 54000 Nancy, France
| | - Jean Luc Olivier
- Calbinotox (UR7488), Université de Lorraine, 54000 Nancy, France
- CHRU de Nancy, Pôle des Laboratoires, Service de Biochimie-Biologie Moléculaire-Nutrition, 54000 Nancy, France
- Correspondence:
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9
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Auger S, Mournetas V, Chiapello H, Loux V, Langella P, Chatel JM. Gene co-expression network analysis of the human gut commensal bacterium Faecalibacterium prausnitzii in R-Shiny. PLoS One 2022; 17:e0271847. [PMID: 36399439 PMCID: PMC9674144 DOI: 10.1371/journal.pone.0271847] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/04/2022] [Indexed: 11/19/2022] Open
Abstract
Faecalibacterium prausnitzii is abundant in the healthy human intestinal microbiota, and the absence or scarcity of this bacterium has been linked with inflammatory diseases and metabolic disorders. F. prausnitzii thus shows promise as a next-generation probiotic for use in restoring the balance of the gut microbial flora and, due to its strong anti-inflammatory properties, for the treatment of certain pathological conditions. However, very little information is available about gene function and regulation in this species. Here, we utilized a systems biology approach—weighted gene co-expression network analysis (WGCNA)–to analyze gene expression in three publicly available RNAseq datasets from F. prausnitzii strain A2-165, all obtained in different laboratory conditions. The co-expression network was then subdivided into 24 co-expression gene modules. A subsequent enrichment analysis revealed that these modules are associated with different kinds of biological processes, such as arginine, histidine, cobalamin, or fatty acid metabolism as well as bacteriophage function, molecular chaperones, stress response, or SOS response. Some genes appeared to be associated with mechanisms of protection against oxidative stress and could be essential for F. prausnitzii’s adaptation and survival under anaerobic laboratory conditions. Hub and bottleneck genes were identified by analyses of intramodular connectivity and betweenness, respectively; this highlighted the high connectivity of genes located on mobile genetic elements, which could promote the genetic evolution of F. prausnitzii within its ecological niche. This study provides the first exploration of the complex regulatory networks in F. prausnitzii, and all of the “omics” data are available online for exploration through a graphical interface at https://shiny.migale.inrae.fr/app/faeprau.
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Affiliation(s)
- Sandrine Auger
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
- * E-mail: (SA); (VM)
| | - Virginie Mournetas
- ADLIN Science, Pépinière « Genopole Entreprises », Evry, France
- * E-mail: (SA); (VM)
| | | | - Valentin Loux
- Université Paris-Saclay, INRAE, MaIAGE, Jouy-en-Josas, France
- Université Paris-Saclay, INRAE, BioinfOmics, MIGALE Bioinformatics Facility, Jouy-en-Josas, France
| | - Philippe Langella
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Jean-Marc Chatel
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
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10
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Savary-Auzeloux I, Jarzaguet M, Migné C, Kemeny JL, Novais-Gameiro L, de Azevedo M, Mathé V, Mariotti F, Langella P, Chatel JM, Dardevet D. Anti-inflammatory Streptococcus thermophilus CNRZ160 limits sarcopenia induced by low-grade inflammation in older adult rats. Front Nutr 2022; 9:986542. [PMID: 36245508 PMCID: PMC9559730 DOI: 10.3389/fnut.2022.986542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
Background and aimsAging is characterized, at the systemic level, by the development of low-grade inflammation, which has been identified as determining sarcopenia by blunting postprandial muscle anabolism. The causes of this “inflammageing” is still not clearly defined. An increased intestinal permeability, a microbiota dysbiosis and subsequent generation of intestinal then generalized inflammation have been hypothesized. The objective of this study was to test in vivo during aging if (1) a chronic low-grade intestinal inflammation can lead to anabolic resistance and muscle loss and (2) if a bacterial strain presenting anti-inflammatory properties could prevent these adverse effects.MethodsYoung adult (6 m) and elderly rats (18 m) received Dextran Sodium Sulfate (DSS) for 28 days to generate low-grade intestinal inflammation, and received (PB1 or PB2 groups) or not (DSS group) one of the two S. Thermophilus strains (5 × 109 CFU/day) previously shown to present an anti-inflammatory potential in vitro. They were compared to pair fed control (PF). Muscle and colon weights and protein synthesis (using 13C Valine) were measured at slaughter. Muscle proteolysis, gut permeability and inflammatory markers were assessed only in old animals by RT-PCR or proteins quantifications (ELISA).ResultsIn both adult and old rats, DSS reduced absolute protein synthesis (ASR) in gastrocnemius muscle [−12.4% (PB1) and −9.5% (PB2) vs. PF, P < 0.05] and increased ASR in colon (+86% and +30.5%, respectively vs. PF, P < 0.05). PB1 (CNRZ160 strain) but not PB2 resulted in a higher muscle ASR as compared to DSS in adults (+18%, P < 0.05), a trend also observed for PB1 in old animals (+12%, P = 0.10). This was associated with a blunted increase in colon ASR. In old rats, PB1 also significantly decreased expression of markers of autophagy and ubiquitin-proteasome pathways vs. DSS groups and improved gut permeability (assessed by Occludin, Zonula Occludens 1 and Claudin 1 expression, P < 0.05) and alleviated systemic inflammation (A2M: −48% vs. DSS, P < 0.05).ConclusionThe loss of muscle anabolism associated with low-grade intestinal inflammation can be prevented by supplementation with anti-inflammatory CNRZ160 strain. We propose that the moderated gut inflammation by CNRZ160 may result in curtailed amino acids (AA) utilization by the gut, and subsequent restored AA systemic availability to support muscle protein accretion. Therefore, CNRZ160 could be considered as an efficient probiotic to modulate muscle mass loss and limit sarcopenia during aging.
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Affiliation(s)
- Isabelle Savary-Auzeloux
- Unité Nutrition Humaine, UMR1019, Université Clermont Auvergne, INRAE, Clermont-Ferrand, France
- *Correspondence: Isabelle Savary-Auzeloux
| | - Marianne Jarzaguet
- Unité Nutrition Humaine, UMR1019, Université Clermont Auvergne, INRAE, Clermont-Ferrand, France
| | - Carole Migné
- MetaboHUB Clermont, Plateforme d'Exploration du Métabolisme, Unité de Nutrition Humaine (UNH), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Université Clermont Auvergne, Clermont-Ferrand, France
| | - Jean-Louis Kemeny
- Centre Imagerie cellulaire et Santé – CICS - Université Clermont Auvergne, Clermont-Ferrand, France
| | - Lorraine Novais-Gameiro
- Centre Imagerie cellulaire et Santé – CICS - Université Clermont Auvergne, Clermont-Ferrand, France
| | - Marcela de Azevedo
- Université Paris Saclay, AgroParisTech, UMR1319 MICALIS, INRAE, Jouy en Josas, France
| | - Véronique Mathé
- Université Paris-Saclay, AgroParisTech, UMR PNCA, INRAE, Paris, France
| | - François Mariotti
- Université Paris-Saclay, AgroParisTech, UMR PNCA, INRAE, Paris, France
| | - Philippe Langella
- Université Paris Saclay, AgroParisTech, UMR1319 MICALIS, INRAE, Jouy en Josas, France
| | - Jean-Marc Chatel
- Université Paris Saclay, AgroParisTech, UMR1319 MICALIS, INRAE, Jouy en Josas, France
| | - Dominique Dardevet
- Unité Nutrition Humaine, UMR1019, Université Clermont Auvergne, INRAE, Clermont-Ferrand, France
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11
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Noguès EB, Kropp C, Bétemps L, de Sousa C, Chain F, Auger S, Azevedo V, Langella P, Chatel JM. Lactococcus lactis engineered to deliver hCAP18 cDNA alleviates DNBS-induced colitis in C57BL/6 mice by promoting IL17A and IL10 cytokine expression. Sci Rep 2022; 12:15641. [PMID: 36123355 PMCID: PMC9485145 DOI: 10.1038/s41598-022-19455-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/30/2022] [Indexed: 02/05/2023] Open
Abstract
With its antimicrobial and immunomodulating properties, the cathelicidin (LL37) plays an important role in innate immune system. Here, we attempted to alleviate chemically induced colitis using a lactococci strain that either directly expressed the precursor to LL37, hCAP18 (LL-pSEC:hCAP18), or delivered hCAP18 cDNA to host cells under the control of the cytomegalovirus promoter (LL-Probi-H1:hCAP18). We also investigated whether the alleviation of symptoms could be explained through modification of the gut microbiota by hCAP18. Mice were administered daily doses of LL-pSEC:hCAP18 or LL-Probi-H1:hCAP18. On day 7, colitis was induced by DNBS. During autopsy, we assessed macroscopic tissue damage in the colon and collected tissue samples for the characterization of inflammation markers and histological analysis. Feces were collected at day 7 for 16S DNA sequencing. We also performed a fecal transplant experiment in which mice underwent colon washing and received feces from Lactococcus lactis-treated mice before DNBS-colitis induction. Treatment with LL-Probi-H1:hCAP18 reduced the severity of colitis symptoms. The protective effects were accompanied by increased levels of IL17A and IL10 in mesenteric lymph node cells. L. lactis administration altered the abundance of Lachnospiraceae and Muribaculaceae. However, fecal transplant from L. lactis-treated mice did not improve DNBS-induced symptoms in recipient mice.
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Affiliation(s)
- Esther Borras Noguès
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France
| | - Camille Kropp
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France
| | - Laureline Bétemps
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France
| | - Cassiana de Sousa
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France ,grid.8430.f0000 0001 2181 4888Institute of Biological Sciences, Federal University of Minas Gerais, Belo-Horizonte, MG Brazil
| | - Florian Chain
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France
| | - Sandrine Auger
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France
| | - Vasco Azevedo
- grid.8430.f0000 0001 2181 4888Institute of Biological Sciences, Federal University of Minas Gerais, Belo-Horizonte, MG Brazil
| | - Philippe Langella
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France
| | - Jean-Marc Chatel
- grid.462293.80000 0004 0522 0627Université Paris Saclay, INRAE, AgroParisTech, UMR1319, MICALIS, 78352 Jouy en Josas, France
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12
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Touch S, Godefroy E, Rolhion N, Danne C, Oeuvray C, Straube M, Galbert C, Brot L, Alonso Salgueiro I, Chadi S, Ledent T, Chatel JM, Langella P, Jotereau F, Altare F, Sokol H. Human CD4+/CD8α+ regulatory T cells induced by Faecalibacterium prausnitzii protect against intestinal inflammation. JCI Insight 2022; 7:154722. [PMID: 35536673 DOI: 10.1172/jci.insight.154722] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 05/06/2022] [Indexed: 11/17/2022] Open
Abstract
Faecalibacterium prausnitzii (F. prausnitzii), a dominant bacterium of the human microbiota, is decreased in patients with inflammatory bowel diseases (IBD) and exhibits anti-inflammatory effects. In human, colonic lamina propria contains IL-10-secreting, Foxp3-negative regulatory T cells (Treg) characterized by a double expression of CD4 and CD8α (DP8α) and a specificity for F. prausnitzii. This Treg subset is decreased in IBD. The in vivo effect of DP8α cells has not been evaluated yet. Here, using a humanized model of NOD.Prkcscid IL2rγ-/- (NSG) immunodeficient mouse strain that expresses the human leucocyte antigen D-related allele HLA-DR*0401 but not murine class II (NSG-Ab° DR4) molecules, we demonstrated a protective effect of a HLA-DR*0401-restricted DP8α Treg clone combined with F. prausnitzii administration in a colitis model. In a cohort of patients with IBD, we showed an independent association between the frequency of circulating DP8α cells and disease activity. Finally, we pointed out a positive correlation between F. prausnitzii-specific DP8α Tregs and the amount of F. prausnitzii in fecal microbiota in healthy individuals and patients with ileal Crohn's disease.
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Affiliation(s)
- Sothea Touch
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
| | | | - Nathalie Rolhion
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
| | | | - Cyriane Oeuvray
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
| | - Marjolène Straube
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
| | - Chloé Galbert
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
| | - Loïc Brot
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
| | | | - Sead Chadi
- UMR1319 Micalis & AgroParisTech, INRAE, Jouy en Josas, France
| | - Tatiana Ledent
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
| | | | | | - Francine Jotereau
- CRCINA, INSERM, University of Nantes, University of Angers, Nantes, France
| | - Frédéric Altare
- CRCINA, INSERM, University of Nantes, University of Angers, Nantes, France
| | - Harry Sokol
- Gastroenterology Department, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Paris, France
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13
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Meynier M, Baudu E, Rolhion N, Defaye M, Straube M, Daugey V, Modoux M, Wawrzyniak I, Delbac F, Villéger R, Méleine M, Borras Nogues E, Godfraind C, Barnich N, Ardid D, Poirier P, Sokol H, Chatel JM, Langella P, Livrelli V, Bonnet M, Carvalho FA. AhR/IL-22 pathway as new target for the treatment of post-infectious irritable bowel syndrome symptoms. Gut Microbes 2022; 14:2022997. [PMID: 35090380 PMCID: PMC8803069 DOI: 10.1080/19490976.2021.2022997] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 12/10/2021] [Indexed: 02/04/2023] Open
Abstract
Alterations in brain/gut/microbiota axis are linked to Irritable Bowel Syndrome (IBS) physiopathology. Upon gastrointestinal infection, chronic abdominal pain and anxio-depressive comorbidities may persist despite pathogen clearance leading to Post-Infectious IBS (PI-IBS). This study assesses the influence of tryptophan metabolism, and particularly the microbiota-induced AhR expression, on intestinal homeostasis disturbance following gastroenteritis resolution, and evaluates the efficacy of IL-22 cytokine vectorization on PI-IBS symptoms. The Citrobacter rodentium infection model in C57BL6/J mice was used to mimic Enterobacteria gastroenteritis. Intestinal homeostasis was evaluated as low-grade inflammation, permeability, mucosa-associated microbiota composition, and colonic sensitivity. Cognitive performances and emotional state of animals were assessed using several tests. Tryptophan metabolism was analyzed by targeted metabolomics. AhR activity was evaluated using a luciferase reporter assay method. One Lactococcus lactis strain carrying an eukaryotic expression plasmid for murine IL-22 (L. lactisIL-22) was used to induce IL-22 production in mouse colonic mucosa. C. rodentium-infected mice exhibited persistent colonic hypersensitivity and cognitive impairments and anxiety-like behaviors after pathogen clearance. These post-infectious disorders were associated with low-grade inflammation, increased intestinal permeability, decrease of Lactobacillaceae abundance associated with the colonic layer, and increase of short-chain fatty acids (SCFAs). During post-infection period, the indole pathway and AhR activity were decreased due to a reduction of tryptophol production. Treatment with L. lactisIL-22 restored gut permeability and normalized colonic sensitivity, restored cognitive performances and decreased anxiety-like behaviors. Data from the video-tracking system suggested an upgrade of welfare for mice receiving the L.lactisIL-22 strain. Our findings revealed that AhR/IL-22 signaling pathway is altered in a preclinical PI-IBS model. IL-22 delivering alleviate PI-IBS symptoms as colonic hypersensitivity, cognitive impairments, and anxiety-like behaviors by acting on intestinal mucosa integrity. Thus, therapeutic strategies targeting this pathway could be developed to treat IBS patients suffering from chronic abdominal pain and associated well-being disorders.
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Affiliation(s)
- Maëva Meynier
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Elodie Baudu
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Nathalie Rolhion
- Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, F-75012Paris, France
- Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Manon Defaye
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand63001, France
- Department of Physiology and Pharmacology, Inflammation Research Network, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
- LMGE, CNRS 6023, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Marjolène Straube
- Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, F-75012Paris, France
| | - Valentine Daugey
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Morgane Modoux
- Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, F-75012Paris, France
| | - Ivan Wawrzyniak
- LMGE, CNRS 6023, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Frédéric Delbac
- LMGE, CNRS 6023, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Romain Villéger
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
| | - Mathieu Méleine
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Esther Borras Nogues
- Université Paris-Saclay, Institut National de la Recherche Agronomique et Environnementale (INRAE), AgroParisTech UMR 1319 MICALIS, Jouy-en-Josas, France
| | - Catherine Godfraind
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
- CHU Clermont-Ferrand, Neuropathology Unit, Clermont-Ferrand, France
| | - Nicolas Barnich
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
| | - Denis Ardid
- NeuroDol, UMR 1107 INSERM, University of Clermont Auvergne, Clermont-Ferrand63001, France
| | - Philippe Poirier
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
- CHU Clermont-Ferrand, Laboratoire de Parasitologie et de Mycologie, Clermont-Ferrand, France
| | - Harry Sokol
- Sorbonne University, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, F-75012Paris, France
- Paris Centre for Microbiome Medicine FHU, Paris, France
- Université Paris-Saclay, Institut National de la Recherche Agronomique et Environnementale (INRAE), AgroParisTech UMR 1319 MICALIS, Jouy-en-Josas, France
| | - Jean-Marc Chatel
- Université Paris-Saclay, Institut National de la Recherche Agronomique et Environnementale (INRAE), AgroParisTech UMR 1319 MICALIS, Jouy-en-Josas, France
| | - Philippe Langella
- Université Paris-Saclay, Institut National de la Recherche Agronomique et Environnementale (INRAE), AgroParisTech UMR 1319 MICALIS, Jouy-en-Josas, France
| | - Valérie Livrelli
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
- CHU Clermont-Ferrand, Laboratoire de Parasitologie et de Mycologie, Clermont-Ferrand, France
| | - Mathilde Bonnet
- M2iSH, UMR 1071 INSERM, University of Clermont Auvergne, INRAE USC 2018, Clermont-Ferrand63001, France
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14
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Maioli TU, Borras-Nogues E, Torres L, Barbosa SC, Martins VD, Langella P, Azevedo VA, Chatel JM. Possible Benefits of Faecalibacterium prausnitzii for Obesity-Associated Gut Disorders. Front Pharmacol 2021; 12:740636. [PMID: 34925006 PMCID: PMC8677946 DOI: 10.3389/fphar.2021.740636] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/04/2021] [Indexed: 12/18/2022] Open
Abstract
Metabolic disorders are an increasing concern in the industrialized world. Current research has shown a direct link between the composition of the gut microbiota and the pathogenesis of obesity and diabetes. In only a few weeks, an obesity-inducing diet can lead to increased gut permeability and microbial dysbiosis, which contributes to chronic inflammation in the gut and adipose tissues, and to the development of insulin resistance. In this review, we examine the interplay between gut inflammation, insulin resistance, and the gut microbiota, and discuss how some probiotic species can be used to modulate gut homeostasis. We focus primarily on Faecalibacterium prausnitzii, a highly abundant butyrate-producing bacterium that has been proposed both as a biomarker for the development of different gut pathologies and as a potential treatment due to its production of anti-inflammatory metabolites.
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Affiliation(s)
- Tatiani Uceli Maioli
- Departamento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Université Paris Saclay, INRAE, AgroParisTech, Micalis, Jouy-en-Josas, France
| | | | - Licia Torres
- Programa de Pós-Graduação em Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Sara Candida Barbosa
- Programa de Pós-Graduação em Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vinicius Dantas Martins
- Programa de Pós-Graduação em Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Philippe Langella
- Université Paris Saclay, INRAE, AgroParisTech, Micalis, Jouy-en-Josas, France
| | - Vasco Ariston Azevedo
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Jean-Marc Chatel
- Université Paris Saclay, INRAE, AgroParisTech, Micalis, Jouy-en-Josas, France
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15
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Lapiere A, Geiger M, Robert V, Demarquay C, Auger S, Chadi S, Benadjaoud M, Fernandes G, Milliat F, Langella P, Benderitter M, Chatel JM, Sémont A. Prophylactic Faecalibacterium prausnitzii treatment prevents the acute breakdown of colonic epithelial barrier in a preclinical model of pelvic radiation disease. Gut Microbes 2020; 12:1-15. [PMID: 32985332 PMCID: PMC7524396 DOI: 10.1080/19490976.2020.1812867] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Every year, millions of people around the world benefit from radiation therapy to treat cancers localized in the pelvic area. Damage to healthy tissue in the radiation field can cause undesirable toxic effects leading to gastrointestinal complications called pelvic radiation disease. A change in the composition and/or function of the microbiota could contribute to radiation-induced gastrointestinal toxicity. In this study, we tested the prophylactic effect of a new generation of probiotic like Faecalibacterium prausnitzii (F. prausnitzii) on acute radiation-induced colonic lesions. Experiments were carried out in a preclinical model of pelvic radiation disease. Rats were locally irradiated at 29 Gray in the colon resulting in colonic epithelial barrier rupture. Three days before the irradiation and up to 3 d after the irradiation, the F. prausnitzii A2-165 strain was administered daily (intragastrically) to test its putative protective effects. Results showed that prophylactic F. prausnitzii treatment limits radiation-induced para-cellular hyperpermeability, as well as the infiltration of neutrophils (MPO+ cells) in the colonic mucosa. Moreover, F. prausnitzii treatment reduced the severity of the morphological change of crypts, but also preserved the pool of Sox-9+ stem/progenitor cells, the proliferating epithelial PCNA+ crypt cells and the Dclk1+/IL-25+ differentiated epithelial tuft cells. The benefit of F. prausnitzii was associated with increased production of IL-18 by colonic crypt epithelial cells. Thus, F. prausnitzii treatment protected the epithelial colonic barrier from colorectal irradiation. New-generation probiotics may be promising prophylactic treatments to reduce acute side effects in patients treated with radiation therapy and may improve their quality of life.
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Affiliation(s)
- Alexia Lapiere
- Department of RAdiobiology and Regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (Lrmed), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Mallia Geiger
- Department of RAdiobiology and Regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (Lrmed), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Véronique Robert
- INRAE, AgroParisTech, Micalis Institute, Paris-Saclay University, Jouy-en-Josas, France
| | - Christelle Demarquay
- Department of RAdiobiology and Regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (Lrmed), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Sandrine Auger
- INRAE, AgroParisTech, Micalis Institute, Paris-Saclay University, Jouy-en-Josas, France
| | - Sead Chadi
- INRAE, AgroParisTech, Micalis Institute, Paris-Saclay University, Jouy-en-Josas, France
| | - Mohamedamine Benadjaoud
- Department of RAdiobiology and Regenerative MEDicine (SERAMED), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Gabriel Fernandes
- René Rachou Institute, Oswaldo Cruz Foundation, Belo Horizonte, MG, Brazil
| | - Fabien Milliat
- Department of RAdiobiology and Regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (Lrmed), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Philippe Langella
- INRAE, AgroParisTech, Micalis Institute, Paris-Saclay University, Jouy-en-Josas, France
| | - Marc Benderitter
- Department of RAdiobiology and Regenerative MEDicine (SERAMED), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Jean-Marc Chatel
- INRAE, AgroParisTech, Micalis Institute, Paris-Saclay University, Jouy-en-Josas, France
| | - Alexandra Sémont
- Department of RAdiobiology and Regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (Lrmed), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France,CONTACT : Alexandra Sémont, Department of RAdiobiology and Regenerative MEDicine (SERAMED), Laboratory of MEDical Radiobiology (Lrmed), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses92260, France
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16
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Breyner NM, Vilas Boas PB, Fernandes G, de Carvalho RD, Rochat T, Michel ML, Chain F, Sokol H, de Azevedo M, Myioshi A, Azevedo VA, Langella P, Bermúdez-Humarán LG, Chatel JM. Oral delivery of pancreatitis-associated protein by Lactococcus lactis displays protective effects in dinitro-benzenesulfonic-acid-induced colitis model and is able to modulate the composition of the microbiota. Environ Microbiol 2019; 21:4020-4031. [PMID: 31325218 PMCID: PMC6899824 DOI: 10.1111/1462-2920.14748] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 07/14/2019] [Indexed: 12/26/2022]
Abstract
Antimicrobial peptides secreted by intestinal immune and epithelial cells are important effectors of innate immunity. They play an essential role in the maintenance of intestinal homeostasis by limiting microbial epithelium interactions and preventing unnecessary microbe‐driven inflammation. Pancreatitis‐associated protein (PAP) belongs to Regenerating islet‐derived III proteins family and is a C‐type (Ca+2 dependent) lectin. PAP protein plays a protective effect presenting anti‐inflammatory properties able to reduce the severity of colitis, preserving gut barrier and epithelial inflammation. Here, we sought to determine whether PAP delivered at intestinal lumen by recombinant Lactococcus lactis strain (LL‐PAP) before and after chemically induced colitis is able to reduce the severity in two models of colitis. After construction and characterization of our recombinant strains, we tested their effects in dinitro‐benzenesulfonic‐acid (DNBS) and Dextran sulfate sodium (DSS) colitis model. After the DNBS challenge, mice treated with LL‐PAP presented less severe colitis compared with PBS and LL‐empty‐treated mice groups. After the DSS challenge, no protective effects of LL‐PAP could be detected. We determined that after 5 days administration, LL‐PAP increase butyrate producer's bacteria, especially Eubacterium plexicaudatum. Based on our findings, we hypothesize that a treatment with LL‐PAP shifts the microbiota preventing the severity of colon inflammation in DNBS colitis model. These protective roles of LL‐PAP in DNBS colitis model might be through intestinal microbiota modulation.
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Affiliation(s)
- Natalia M Breyner
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.,Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil
| | - Priscilla Bagano Vilas Boas
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.,Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil
| | | | | | | | - Marie-Laure Michel
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Florian Chain
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Harry Sokol
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Marcela de Azevedo
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Anderson Myioshi
- Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil
| | - Vasco A Azevedo
- Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil
| | - Philippe Langella
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Luis G Bermúdez-Humarán
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Jean-Marc Chatel
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
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17
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Waldschmitt N, Kitamoto S, Secher T, Zacharioudaki V, Boulard O, Floquet E, Delacre M, Lamas B, Pham HP, Six A, Richard ML, Dagorn JC, Eberl G, Langella P, Chatel JM, Ryffel B, Iovanna JL, Poulin LF, Sokol H, Kamada N, Chamaillard M. The regenerating family member 3 β instigates IL-17A-mediated neutrophil recruitment downstream of NOD1/2 signalling for controlling colonisation resistance independently of microbiota community structure. Gut 2019; 68:1190-1199. [PMID: 30279238 DOI: 10.1136/gutjnl-2018-316757] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 08/08/2018] [Accepted: 08/29/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Loss of the Crohn's disease predisposing NOD2 gene results in an intestinal microenvironment conducive for colonisation by attaching-and-effacing enteropathogens. However, it remains elusive whether it relies on the intracellular recruitment of the serine-threonine kinase RIPK2 by NOD2, a step that is required for its activation of the transcription factor NF-κB. DESIGN Colonisation resistance was evaluated in wild type and mutant mice, as well as in ex-germ-free (ex-GF) mice which were colonised either with faeces from Ripk2-deficient mice or with bacteria with similar preferences for carbohydrates to those acquired by the pathogen. The severity of the mucosal pathology was quantified at several time points postinfection by using a previously established scoring. The community resilience in response to infection was evaluated by 16S ribosomal RNA gene sequence analysis. The control of pathogen virulence was evaluated by monitoring the secretion of Citrobacter-specific antibody response in the faeces. RESULTS Primary infection was similarly outcompeted in ex-GF Ripk2-deficient and control mice, demonstrating that the susceptibility to infection resulting from RIPK2 deficiency cannot be solely attributed to specific microbiota community structures. In contrast, delayed clearance of Citrobacter rodentium and exacerbated histopathology were preceded by a weakened propensity of intestinal macrophages to afford innate lymphoid cell activation. This tissue protection unexpectedly required the regenerating family member 3β by instigating interleukin (IL) 17A-mediated neutrophil recruitment to the intestine and subsequent phosphorylation of signal transducer and activator of transcription 3. CONCLUSIONS These results unveil a previously unrecognised mechanism that efficiently protects from colonisation by diarrhoeagenic bacteria early in infection.
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Affiliation(s)
- Nadine Waldschmitt
- CIIL - Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019 - UMR 8204, F-59000, Lille, France
| | - Sho Kitamoto
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Thomas Secher
- INEM, Orléans University, CNRS UMR 7355, F-45071, Orléans, France
| | - Vassiliki Zacharioudaki
- CIIL - Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019 - UMR 8204, F-59000, Lille, France
| | - Olivier Boulard
- CIIL - Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019 - UMR 8204, F-59000, Lille, France
| | - Emilie Floquet
- CIIL - Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019 - UMR 8204, F-59000, Lille, France
| | - Myriam Delacre
- CIIL - Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019 - UMR 8204, F-59000, Lille, France
| | - Bruno Lamas
- Laboratoire des Biomolécules (LBM), SorbonneUniversités, UPMC Univ. Paris 06, École normale supérieure, PSL ResearchUniversity, CNRS, INSERM, APHP, Paris, France.,Commensals and Probiotics-Host Interactions Laboratory, INRA, UMR1319Micalis & AgroParisTech, Jouy-en-Josas, France
| | - Hang-Phuong Pham
- ILTOO Pharma, iPEPS ICM, Hôpital Pitié Salpêtrière, Paris, France
| | - Adrien Six
- Department of Immunology-Immunopathology-Immunotherapy (I3), Sorbonne Universités, UPMC Univ Paris 06, Inserm UMRS959, Paris, France
| | - Mathias L Richard
- Commensals and Probiotics-Host Interactions Laboratory, INRA, UMR1319Micalis & AgroParisTech, Jouy-en-Josas, France
| | - Jean-Charles Dagorn
- Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Inserm U1068, CNRS UMR 7258 and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Gérard Eberl
- Microenvironment and Immunity Unit, Institut Pasteur, Paris, France
| | - Philippe Langella
- Commensals and Probiotics-Host Interactions Laboratory, INRA, UMR1319Micalis & AgroParisTech, Jouy-en-Josas, France
| | - Jean-Marc Chatel
- Commensals and Probiotics-Host Interactions Laboratory, INRA, UMR1319Micalis & AgroParisTech, Jouy-en-Josas, France
| | - Bernhard Ryffel
- INEM, Orléans University, CNRS UMR 7355, F-45071, Orléans, France
| | - Juan Lucio Iovanna
- Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Inserm U1068, CNRS UMR 7258 and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Lionel F Poulin
- CIIL - Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019 - UMR 8204, F-59000, Lille, France
| | - Harry Sokol
- Laboratoire des Biomolécules (LBM), SorbonneUniversités, UPMC Univ. Paris 06, École normale supérieure, PSL ResearchUniversity, CNRS, INSERM, APHP, Paris, France.,Commensals and Probiotics-Host Interactions Laboratory, INRA, UMR1319Micalis & AgroParisTech, Jouy-en-Josas, France.,Department of Gastroenterology, Saint Antoine Hospital, AP-HP, UPMC Univ Paris 06, Paris, France
| | - Nobuhiko Kamada
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Mathias Chamaillard
- CIIL - Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019 - UMR 8204, F-59000, Lille, France
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18
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Affiliation(s)
- Philippe Langella
- Commensal and Probiotics-Host Interactions Laboratory, Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, 78350, France.
| | - Jean-Marc Chatel
- Commensal and Probiotics-Host Interactions Laboratory, Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, 78350, France
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19
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Le Bourvellec C, Bagano Vilas Boas P, Lepercq P, Comtet-Marre S, Auffret P, Ruiz P, Bott R, Renard CMGC, Dufour C, Chatel JM, Mosoni P. Procyanidin-Cell Wall Interactions within Apple Matrices Decrease the Metabolization of Procyanidins by the Human Gut Microbiota and the Anti-Inflammatory Effect of the Resulting Microbial Metabolome In Vitro. Nutrients 2019; 11:E664. [PMID: 30893845 PMCID: PMC6471247 DOI: 10.3390/nu11030664] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 03/08/2019] [Accepted: 03/15/2019] [Indexed: 12/23/2022] Open
Abstract
B-type oligomeric procyanidins in apples constitute an important source of polyphenols in the human diet. Their role in health is not known, although it is suggested that they generate beneficial bioactive compounds upon metabolization by the gut microbiota. During apple processing, procyanidins interact with cell-wall polysaccharides and form stable complexes. These interactions need to be taken into consideration in order to better assess the biological effects of fruit constituents. Our objectives were to evaluate the impact of these interactions on the microbial metabolization of cell walls and procyanidins, and to investigate the potential anti-inflammatory activity of the resulting metabolome, in addition to analyzing the taxonomical changes which the microbiota undergo. In vitro fermentation of three model apple matrices with microbiota from 4 healthy donors showed that the binding of procyanidins to cell-wall polysaccharides, whether covalently or non-covalently, substantially reduced procyanidin degradation. Although cell wall-unbound procyanidins negatively affected carbohydrate fermentation, they generated more hydroxyphenylvaleric acid than bound procyanidins, and increased the abundance of Adlercreutzia and Gordonibacter genera. The best results in terms of production of anti-inflammatory bioactive metabolites were observed from the apple matrix with no bonds between procyanidins and cell wall polysaccharides, although the matrix with non-covalent bonds was not far behind.
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Affiliation(s)
- Carine Le Bourvellec
- UMR408 SQPOV «Sécurité et Qualité des Produits d'Origine Végétale», INRA, Avignon Université, F-84000 Avignon, France.
| | | | - Pascale Lepercq
- Université Clermont Auvergne, INRA, UMR 0454 MEDIS, F-63000 Clermont-Ferrand, France.
| | - Sophie Comtet-Marre
- Université Clermont Auvergne, INRA, UMR 0454 MEDIS, F-63000 Clermont-Ferrand, France.
| | - Pauline Auffret
- Université Clermont Auvergne, INRA, UMR 0454 MEDIS, F-63000 Clermont-Ferrand, France.
- Ifremer, UMR 241 EIO, F-98702 Tahiti, French Polynesia.
| | - Philippe Ruiz
- Université Clermont Auvergne, INRA, UMR 0454 MEDIS, F-63000 Clermont-Ferrand, France.
| | - Romain Bott
- UMR408 SQPOV «Sécurité et Qualité des Produits d'Origine Végétale», INRA, Avignon Université, F-84000 Avignon, France.
| | - Catherine M G C Renard
- UMR408 SQPOV «Sécurité et Qualité des Produits d'Origine Végétale», INRA, Avignon Université, F-84000 Avignon, France.
| | - Claire Dufour
- UMR408 SQPOV «Sécurité et Qualité des Produits d'Origine Végétale», INRA, Avignon Université, F-84000 Avignon, France.
| | - Jean-Marc Chatel
- Micalis, INRA, AgroParisTech, Université Paris-Saclay, F-7800 Jouy-en-Josas, France.
| | - Pascale Mosoni
- Université Clermont Auvergne, INRA, UMR 0454 MEDIS, F-63000 Clermont-Ferrand, France.
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20
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Carvalho R, Vaz A, Pereira FL, Dorella F, Aguiar E, Chatel JM, Bermudez L, Langella P, Fernandes G, Figueiredo H, Goes-Neto A, Azevedo V. Gut microbiome modulation during treatment of mucositis with the dairy bacterium Lactococcus lactis and recombinant strain secreting human antimicrobial PAP. Sci Rep 2018; 8:15072. [PMID: 30305667 PMCID: PMC6180057 DOI: 10.1038/s41598-018-33469-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/20/2018] [Indexed: 12/19/2022] Open
Abstract
Mucositis is an inflammatory condition of the gut, caused by an adverse effect of chemotherapy drugs, such as 5-fluorouracil (5-FU). In an attempt to develop alternative treatments for the disease, several research groups have proposed the use of probiotics, in particular, Lactic Acid Bacteria (LAB). In this context, the use of recombinant LAB, for delivering anti-inflammatory compounds has also been explored. In previous work, we demonstrated that either Lactococcus lactis NZ9000 or a recombinant strain expressing an antimicrobial peptide involved in human gut homeostasis, the Pancreatitis-associated Protein (PAP), could ameliorate 5-FU-induced mucositis in mice. However, the impact of these strains on the gut microbiota still needs to be elucidated. Therefore, in the present study, we aimed to characterize the effects of both Lactococci strains in the gut microbiome of mice through a 16 S rRNA gene sequencing metagenomic approach. Our data show 5-FU caused a significant decrease in protective bacteria and increase of several bacteria associated with pro-inflammatory traits. The Lactococci strains were shown to reduce several potential opportunistic microbes, while PAP delivery was able to suppress the growth of Enterobacteriaceae during inflammation. We conclude the strain secreting antimicrobial PAP was more effective in the control of 5-FU-dysbiosis.
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Affiliation(s)
- Rodrigo Carvalho
- Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil.
| | - Aline Vaz
- Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil
| | | | - Fernanda Dorella
- Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil
| | - Eric Aguiar
- Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | - Jean-Marc Chatel
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Luis Bermudez
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Philippe Langella
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Gabriel Fernandes
- Fiocruz - Centro de Pesquisa Renê Rachou, Belo Horizonte, MG, Brazil
| | | | | | - Vasco Azevedo
- Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, MG, Brazil
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21
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Mariat D, Robert V, Langella P, Chatel JM. Plasmid transfer efficiency using Lactoccocus lactis strains depends on invasiveness status but also on plasmid copy number. FEMS Microbiol Lett 2018; 364:3827360. [PMID: 28505315 DOI: 10.1093/femsle/fnx100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 05/12/2017] [Indexed: 12/19/2022] Open
Abstract
Lactic acid bacteria as Lactococcus lactis are used as vector for protein but also DNA delivery into intestinal cells in vitro and in vivo. For the plasmid delivery strategy, the plasmid copy number per bacteria (PCN) is thus of great importance. The aim of this paper is to determine the physiological conditions when PCN is the highest in the bacteria. PCN was characterized by qPCR in five different recombinant Lactococcus lactis strains, containing one (mono-) or two different plasmids (biplasmidic), at exponential or stationary phase. We showed that in all cases but one, PCN is higher at exponential than stationary phase. PCN seems to depend on (i) monoplasmidic or biplasmidic strain; (ii) origin of replication of the plasmid; and (iii) the DNA load of the bacteria. Then we studied plasmid transfer in vitro from recombinant L. lactis to eukaryotic COS-7 cells using culture at exponential or stationary phase. We showed that plasmid transfer can be improved in vitro by using bacteria at exponential phase.
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Affiliation(s)
- Denis Mariat
- MICALIS Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Véronique Robert
- MICALIS Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Philippe Langella
- MICALIS Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Jean-Marc Chatel
- MICALIS Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
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22
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Benevides L, Burman S, Martin R, Robert V, Thomas M, Miquel S, Chain F, Sokol H, Bermudez-Humaran LG, Morrison M, Langella P, Azevedo VA, Chatel JM, Soares S. New Insights into the Diversity of the Genus Faecalibacterium. Front Microbiol 2017; 8:1790. [PMID: 28970823 PMCID: PMC5609107 DOI: 10.3389/fmicb.2017.01790] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 09/05/2017] [Indexed: 01/01/2023] Open
Abstract
Faecalibacterium prausnitzii is a commensal bacterium, ubiquitous in the gastrointestinal tracts of animals and humans. This species is a functionally important member of the microbiota and studies suggest it has an impact on the physiology and health of the host. F. prausnitzii is the only identified species in the genus Faecalibacterium, but a recent study clustered strains of this species in two different phylogroups. Here, we propose the existence of distinct species in this genus through the use of comparative genomics. Briefly, we performed analyses of 16S rRNA gene phylogeny, phylogenomics, whole genome Multi-Locus Sequence Typing (wgMLST), Average Nucleotide Identity (ANI), gene synteny, and pangenome to better elucidate the phylogenetic relationships among strains of Faecalibacterium. For this, we used 12 newly sequenced, assembled, and curated genomes of F. prausnitzii, which were isolated from feces of healthy volunteers from France and Australia, and combined these with published data from 5 strains downloaded from public databases. The phylogenetic analysis of the 16S rRNA sequences, together with the wgMLST profiles and a phylogenomic tree based on comparisons of genome similarity, all supported the clustering of Faecalibacterium strains in different genospecies. Additionally, the global analysis of gene synteny among all strains showed a highly fragmented profile, whereas the intra-cluster analyses revealed larger and more conserved collinear blocks. Finally, ANI analysis substantiated the presence of three distinct clusters—A, B, and C—composed of five, four, and four strains, respectively. The pangenome analysis of each cluster corroborated the classification of these clusters into three distinct species, each containing less variability than that found within the global pangenome of all strains. Here, we propose that comparison of pangenome subsets and their associated α values may be used as an alternative approach, together with ANI, in the in silico classification of new species. Altogether, our results provide evidence not only for the reconsideration of the phylogenetic and genomic relatedness among strains currently assigned to F. prausnitzii, but also the need for lineage (strain-based) differentiation of this taxon to better define how specific members might be associated with positive or negative host interactions.
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Affiliation(s)
- Leandro Benevides
- Department of General Biology, Federal University of Minas GeraisBelo Horizonte, Brazil.,Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Sriti Burman
- Faculty of Medicine, Translational Research Institute, University of Queensland Diamantina Institute, University of QueenslandSt. Lucia, QLD, Australia
| | - Rebeca Martin
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Véronique Robert
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Muriel Thomas
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Sylvie Miquel
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France.,UMR 6023 Laboratoire Microorganismes: Génome et Environnement, Centre National de la Recherche Scientifique, Université Clermont AuvergneClermont-Ferrand, France
| | - Florian Chain
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Harry Sokol
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France.,Faculté de Médecine Saint-Antoine, Institut National de la Santé et de la Recherche Médicale U1157/UMR7203, AVENIR Team Gut Microbiota and Immunity Equipe de Recherche Labélisée, Université Pierre et Marie CurieParis, France.,Service de Gastroentérologie, Hôpital Saint-Antoine, Assistance Publique-Hôpitaux de ParisParis, France
| | - Luis G Bermudez-Humaran
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Mark Morrison
- Faculty of Medicine, Translational Research Institute, University of Queensland Diamantina Institute, University of QueenslandSt. Lucia, QLD, Australia
| | - Philippe Langella
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Vasco A Azevedo
- Department of General Biology, Federal University of Minas GeraisBelo Horizonte, Brazil
| | - Jean-Marc Chatel
- Commensals and Probiotics-Host Interactions Laboratory, Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Siomar Soares
- Department of Immunology, Microbiology and Parasitology, Institute of Biological Sciences and Natural Sciences, Federal University of Triângulo MineiroUberaba, Brazil
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23
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Carvalho RDDO, do Carmo FLR, de Oliveira Junior A, Langella P, Chatel JM, Bermúdez-Humarán LG, Azevedo V, de Azevedo MS. Use of Wild Type or Recombinant Lactic Acid Bacteria as an Alternative Treatment for Gastrointestinal Inflammatory Diseases: A Focus on Inflammatory Bowel Diseases and Mucositis. Front Microbiol 2017; 8:800. [PMID: 28536562 PMCID: PMC5422521 DOI: 10.3389/fmicb.2017.00800] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/19/2017] [Indexed: 12/26/2022] Open
Abstract
The human gastrointestinal tract (GIT) is highly colonized by bacterial communities, which live in a symbiotic relationship with the host in normal conditions. It has been shown that a dysfunctional interaction between the intestinal microbiota and the host immune system, known as dysbiosis, is a very important factor responsible for the development of different inflammatory conditions of the GIT, such as the idiopathic inflammatory bowel diseases (IBD), a complex and multifactorial disorder of the GIT. Dysbiosis has also been implicated in the pathogenesis of other GIT inflammatory diseases such as mucositis usually caused as an adverse effect of chemotherapy. As both diseases have become a great clinical problem, many research groups have been focusing on developing new strategies for the treatment of IBD and mucositis. In this review, we show that lactic acid bacteria (LAB) have been capable in preventing and treating both disorders in animal models, suggesting they may be ready for clinical trials. In addition, we present the most current studies on the use of wild type or genetically engineered LAB strains designed to express anti-inflammatory proteins as a promising strategy in the treatment of IBD and mucositis.
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Affiliation(s)
| | - Fillipe L R do Carmo
- Federal University of Minas Gerais - Instituto de Ciências BiológicasBelo Horizonte, Brazil
| | | | - Philippe Langella
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Jean-Marc Chatel
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Luis G Bermúdez-Humarán
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Vasco Azevedo
- Federal University of Minas Gerais - Instituto de Ciências BiológicasBelo Horizonte, Brazil
| | - Marcela S de Azevedo
- Federal University of Minas Gerais - Instituto de Ciências BiológicasBelo Horizonte, Brazil
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24
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Carvalho RD, Breyner N, Menezes-Garcia Z, Rodrigues NM, Lemos L, Maioli TU, da Gloria Souza D, Carmona D, de Faria AMC, Langella P, Chatel JM, Bermúdez-Humarán LG, Figueiredo HCP, Azevedo V, de Azevedo MS. Secretion of biologically active pancreatitis-associated protein I (PAP) by genetically modified dairy Lactococcus lactis NZ9000 in the prevention of intestinal mucositis. Microb Cell Fact 2017; 16:27. [PMID: 28193209 PMCID: PMC5307810 DOI: 10.1186/s12934-017-0624-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 01/03/2017] [Indexed: 12/22/2022] Open
Abstract
Background Mucositis is one of the most relevant gastrointestinal inflammatory conditions in humans, generated by the use of chemotherapy drugs, such as 5-fluoracil (5-FU). 5-FU-induced mucositis affects 80% of patients undergoing oncological treatment causing mucosal gut dysfunctions and great discomfort. As current therapy drugs presents limitations in alleviating mucositis symptoms, alternative strategies are being pursued. Recent studies have shown that the antimicrobial pancreatitis-associated protein (PAP) has a protective role in intestinal inflammatory processes. Indeed, it was demonstrated that a recombinant strain of Lactococcus lactis expressing human PAP (LL-PAP) could prevent and improve murine DNBS-induced colitis, an inflammatory bowel disease (IBD) that causes severe inflammation of the colon. Hence, in this study we sought to evaluate the protective effects of LL-PAP on 5-FU-induced experimental mucositis in BALB/c mice as a novel approach to treat the disease. Results Our results show that non-recombinant L. lactis NZ9000 have antagonistic activity, in vitro, against the enteroinvasive gastrointestinal pathogen L. monocytogenes and confirmed PAP inhibitory effect against Opportunistic E. faecalis. Moreover, L. lactis was able to prevent histological damage, reduce neutrophil and eosinophil infiltration and secretory Immunoglobulin-A in mice injected with 5-FU. Recombinant lactococci carrying antimicrobial PAP did not improve those markers of inflammation, although its expression was associated with villous architecture preservation and increased secretory granules density inside Paneth cells in response to 5-FU inflammation. Conclusions We have demonstrated for the first time that L. lactis NZ9000 by itself, is able to prevent 5-FU-induced intestinal inflammation in BALB/c mice. Moreover, PAP delivered by recombinant L. lactis strain showed additional protective effects in mice epithelium, revealing to be a promising strategy to treat intestinal mucositis.
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Affiliation(s)
- Rodrigo D Carvalho
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Natalia Breyner
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-En-Josas, France
| | - Zelia Menezes-Garcia
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Nubia M Rodrigues
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Luisa Lemos
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Tatiane U Maioli
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Danielle da Gloria Souza
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil.,Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-En-Josas, France
| | - Denise Carmona
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Ana M C de Faria
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Philippe Langella
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-En-Josas, France
| | - Jean-Marc Chatel
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-En-Josas, France
| | - Luis G Bermúdez-Humarán
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-En-Josas, France
| | - Henrique C P Figueiredo
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Vasco Azevedo
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil
| | - Marcela S de Azevedo
- Federal University of Minas Gerais (UFMG-ICB), Av. Antônio Carlos, 6627, CP 486, Belo Horizonte, MG, 31270-901, Brazil.
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25
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Mancha-Agresti P, Drumond MM, Carmo FLRD, Santos MM, Santos JSCD, Venanzi F, Chatel JM, Leclercq SY, Azevedo V. A New Broad Range Plasmid for DNA Delivery in Eukaryotic Cells Using Lactic Acid Bacteria: In Vitro and In Vivo Assays. Mol Ther Methods Clin Dev 2016; 4:83-91. [PMID: 28344994 PMCID: PMC5363290 DOI: 10.1016/j.omtm.2016.12.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 12/15/2016] [Indexed: 12/30/2022]
Abstract
Lactococcus lactis is well documented as a promising candidate for development of novel oral live vaccines. It has been broadly engineered for heterologous expression, as well as for plasmid expression vector delivery, directly inside eukaryotic cells, for DNA vaccine, or as therapeutic vehicle. This work describes the characteristics of a new plasmid, pExu (extra chromosomal unit), for DNA delivery using L. lactis and evaluates its functionality both by in vitro and in vivo assays. This plasmid exhibits the following features: (1) a theta origin of replication and (2) an expression cassette containing a multiple cloning site and a eukaryotic promoter, the cytomegalovirus (pCMV). The functionality of pExu:egfp was evaluated by fluorescence microscopy. The L. lactis MG1363 (pExu:egfp) strains were administered by gavage to Balb/C mice and the eGFP expression was monitored by fluorescence microscopy. The pExu vector has demonstrated an excellent stability either in L. lactis or in Escherichia coli. The eGFP expression at different times in in vitro assay showed that 15.8% of CHO cells were able to express the protein after transfection. The enterocytes of mice showed the expression of eGFP protein. Thus, L. lactis carrying the pExu is a good candidate to deliver genes into eukaryotic cells.
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Affiliation(s)
- Pamela Mancha-Agresti
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB/UFMG), 31270-901 Belo Horizonte, Brazil
| | - Mariana Martins Drumond
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB/UFMG), 31270-901 Belo Horizonte, Brazil; CEFET - Centro Federal de Educação Tecnológica de Minas Gerais, Coordenação de Ciências, Campus I, 30421-169 Belo Horizonte, Brazil
| | - Fillipe Luiz Rosa do Carmo
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB/UFMG), 31270-901 Belo Horizonte, Brazil
| | - Monica Morais Santos
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB/UFMG), 31270-901 Belo Horizonte, Brazil
| | | | - Franco Venanzi
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy
| | - Jean-Marc Chatel
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Sophie Yvette Leclercq
- Laboratório de Inovação Biotecnológica, Fundação Ezequiel Dias (FUNED), Belo Horizonte, 30510-010 Minas Gerais, Brazil
| | - Vasco Azevedo
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB/UFMG), 31270-901 Belo Horizonte, Brazil
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26
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Aubry C, Michon C, Chain F, Chvatchko Y, Goffin L, Zimmerli SC, Leguin S, Langella P, Bermudez-Humaran L, Chatel JM. Erratum to: Protective effect of TSLP delivered at the gut mucosa level by recombinant lactic acid bacteria in DSS-induced colitis mouse model. Microb Cell Fact 2016; 15:188. [PMID: 27832790 PMCID: PMC5103604 DOI: 10.1186/s12934-016-0592-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 11/03/2016] [Indexed: 11/30/2022] Open
Affiliation(s)
- Camille Aubry
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France.,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France
| | - Christophe Michon
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France.,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France
| | - Florian Chain
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France.,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France
| | | | | | | | - Sylvia Leguin
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France.,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France
| | - Philippe Langella
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France.,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France
| | - Luis Bermudez-Humaran
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France.,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France
| | - Jean-Marc Chatel
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
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27
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Souza BM, Preisser TM, Pereira VB, Zurita-Turk M, de Castro CP, da Cunha VP, de Oliveira RP, Gomes-Santos AC, de Faria AMC, Machado DCC, Chatel JM, Azevedo VADC, Langella P, Miyoshi A. Lactococcus lactis carrying the pValac eukaryotic expression vector coding for IL-4 reduces chemically-induced intestinal inflammation by increasing the levels of IL-10-producing regulatory cells. Microb Cell Fact 2016; 15:150. [PMID: 27576902 PMCID: PMC5006358 DOI: 10.1186/s12934-016-0548-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 08/19/2016] [Indexed: 01/01/2023] Open
Abstract
Background Inflammatory bowel diseases are characterized by chronic intestinal inflammation that leads to severe destruction of the intestinal mucosa. Therefore, the understanding of their aetiology as well as the development of new medicines is an important step for the treatment of such diseases. Consequently, the development of Lactococcus lactis strains capable of delivering a eukaryotic expression vector encoding the interleukin 4 (IL-4) of Mus musculus would represent a new strategy for the elaboration of a more effective alternative therapy against Crohn’s disease. Results The murine IL-4 ORF was cloned into the eukaryotic expression vector pValac::dts. The resulting plasmid—pValac::dts::IL-4—was transfected into CHO cells so that its functionality could be evaluated in vitro. With fluorescent confocal microscopy, flow cytometry and ELISA, it was observed that pValac::dts::IL-4-transfected cells produced IL-4, while non-transfected cells and cells transfected with the empty vector did not. Then, pValac::dts::IL-4 was inserted into L. lactis MG1363 FnBPA+ in order to evaluate the therapeutic potential of the recombinant strain against TNBS-induced colitis. Intragastric administration of L. lactis MG1363 FnBPA+ (pValac::dts::IL-4) was able to decrease the severity of colitis, with animals showing decreased levels of IL-12, IL-6 and MPO activity; and increased levels of IL-4 and IL-10. Finally, LP-isolated cells from mice administered TNBS were immunophenotyped so that the main IL-4 and IL-10 producers were identified. Mice administered the recombinant strain presented significantly higher percentages of F4/80+MHCII+Ly6C−IL-4+, F4/80+MHCII+Ly6C−IL-10+, F4/80+MHCII+Ly6C−CD206+CD124+IL-10+ and CD4+Foxp3+IL10+ cells compared to the other groups. Conclusions This study shows that L. lactis MG1363 FnBPA+ (pValac::dts::IL-4) is a good candidate to maintain the anti-inflammatory and proinflammatory balance in the gastrointestinal tract, increasing the levels of IL-10-secreting regulatory cells and, thus, demonstrating the effectiveness of this novel DNA delivery-based strategy.
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Affiliation(s)
- Bianca Mendes Souza
- Laboratório de Tecnologia Genética, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Tatiane Melo Preisser
- Laboratório de Tecnologia Genética, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vanessa Bastos Pereira
- Laboratório de Tecnologia Genética, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Meritxell Zurita-Turk
- Laboratório de Tecnologia Genética, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Camila Prósperi de Castro
- Laboratório de Tecnologia Genética, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vanessa Pecini da Cunha
- Laboratório de Tecnologia Genética, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Ana Cristina Gomes-Santos
- Laboratório de Imunobiologia, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Maria Caetano de Faria
- Laboratório de Imunobiologia, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Denise Carmona Cara Machado
- Laboratório de Alergia e Inflamação, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Vasco Ariston de Carvalho Azevedo
- Laboratório de Genética Celular e Molecular Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Anderson Miyoshi
- Laboratório de Tecnologia Genética, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
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de Moreno de LeBlanc A, Del Carmen S, Chatel JM, Azevedo V, Langella P, Bermudez-Humaran L, LeBlanc JG. Evaluation of the biosafety of recombinant lactic acid bacteria designed to prevent and treat colitis. J Med Microbiol 2016; 65:1038-1046. [PMID: 27469354 DOI: 10.1099/jmm.0.000323] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) affect the gastrointestinal tract and are characterized by recurrent inflammation that requires lifelong therapies. Probiotics such as lactic acid bacteria (LAB) have been proposed to complement current treatment protocols for these patients; however, their characteristics are strain dependent. In this regard, certain novel characteristics are only possible through the genetic modification of these beneficial micro-organisms. Different delivery systems, such as protein delivery of anti-oxidant enzymes and anti-inflammatory cytokines, have been shown to be effective in preventing and treating IBD in animal models. In this study, the safety of the recombinant LAB (recLAB) Streptococcus thermophilus CRL807 : CAT, S. thermophilus CRL807 : SOD, Lactococcus lactis NCDO2118 pXILCYT : IL-10, L. lactis MG1363 pValac : IL-10 and L. lactis MG1363 pGroESL : IL-10 with proven beneficial effects was compared to their progenitor strains S. thermophilus CRL807, L. lactis NCDO2118 or L. lactis MG1363. The prolonged administration of these genetically modified strains showed that they were just as safe as the native strains from which they derive, as demonstrated by normal animal growth and relative organ weights, absence of microbial translocation from the gastrointestinal tract, normal blood parameters and intestinal histology. The results show the potential use of these recLAB in future therapeutic formulations; however, the use of modern bio-containment systems is required for the future acceptance of these recLAB by the medical community and patients with IBD.
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Affiliation(s)
| | - Silvina Del Carmen
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | | | - Vasco Azevedo
- Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Jean Guy LeBlanc
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
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29
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Almeida JF, Breyner NM, Mahi M, Ahmed B, Benbouziane B, Boas PCBV, Miyoshi A, Azevedo V, Langella P, Bermúdez-Humarán LG, Chatel JM. Expression of fibronectin binding protein A (FnBPA) from Staphylococcus aureus at the cell surface of Lactococcus lactis improves its immunomodulatory properties when used as protein delivery vector. Vaccine 2016; 34:1312-8. [PMID: 26854905 DOI: 10.1016/j.vaccine.2016.01.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 01/07/2016] [Accepted: 01/13/2016] [Indexed: 12/18/2022]
Abstract
A recombinant strain of Lactococcus lactis displaying a cell-surface anchored fibronectin binding protein A (FnBPA) from Staphylococcus aureus (LL-FnBPA) had been shown to be more efficient in delivering plasmid than its wild-type counterpart both in vitro and in vivo, and have the ability to orientate the immune response toward a Th2 profile in a context of a DNA vaccination. The aim of this work was to test whether this LL-FnBPA strain could shape the immune response after mucosal administration in mice. For this, we used a mouse model of human papilloma virus (HPV)-induced cancer and a L. lactis strain displaying at its cell surface both HPV-16-E7 antigen (LL-E7) and FnBPA (LL-E7+FnBPA). Our results revealed a more efficient systemic Th1 immune response with recombinant LL-E7+FnBPA. Furthermore, mice vaccinated with LL-E7+FnBPA were better protected when challenged with HPV-16-induced tumors. Altogether, the results suggest that FnBPA displays adjuvant properties when used in the context of mucosal delivery using L. lactis as a live vector.
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Affiliation(s)
- Juliana F Almeida
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; UFMG, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Natalia M Breyner
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; UFMG, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Miloud Mahi
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; Laboratory of Food Microbiology, Biology Department, University of Nature, Life and Hearth Sciences, Theniat el Had Street, 44225 Khemis Miliana, Algeria
| | - Bensoltane Ahmed
- Laboratory of Food Microbiology, Biology Department, University of Nature, Life and Hearth Sciences, Theniat el Had Street, 44225 Khemis Miliana, Algeria
| | - Bouasria Benbouziane
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; Laboratory of Beneficial Microorganisms, Functional Foods and Health, Department of Biology, University of Mostaganem, Lahcen Street, P.O. Box 300, Mostaganem 27000, Algeria
| | - Priscilla C B Vilas Boas
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; UFMG, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Anderson Miyoshi
- UFMG, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vasco Azevedo
- UFMG, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Philippe Langella
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Luis G Bermúdez-Humarán
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Jean-Marc Chatel
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France.
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30
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De Azevedo MSP, Santos Rocha C, Pereira VB, De Oliveira Junior AF, De Sousa CS, Azevedo V, LeBlanc JG, Chatel JM, Miyoshi A. Prospective uses of recombinant Lactococcus lactis expressing both listeriolysin O and mutated internalin A from Listeria monocytogenes as a tool for DNA vaccination. Genet Mol Res 2015; 14:18485-93. [PMID: 26782496 DOI: 10.4238/2015.december.23.36] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, Lactococcus lactis was engineered to express mutated internalin A on its surface and to secrete large amounts of listeriolysin O (LLO) in order to improve its potential as a vehicle for DNA vaccination. Western blotting experiments demonstrated that the bacterium expressed LLO in both the cytoplasmic and extracellular compartments, with higher quantities found in the culture supernatants. A hemolytic assay showed that the recombinant strain secreted 250 ng active LLO/mg total protein. This mInlA/LLO-producing strain of L. lactis may be used as an alternative tool in DNA vaccination against a number of infectious diseases or in cancer therapy.
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Affiliation(s)
- M S P De Azevedo
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - C Santos Rocha
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - V B Pereira
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - A F De Oliveira Junior
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - C S De Sousa
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - V Azevedo
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - J G LeBlanc
- CERELA-CONICET, Chacabuco 145, Tucuman, Argentina
| | - J M Chatel
- Institut National de la Recherche Agronomique, MICALIS (UMR 1319), Domaine de Vilvert, Jouy-en-Josas, France
| | - A Miyoshi
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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31
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Michon C, Kuczkowska K, Langella P, Eijsink VGH, Mathiesen G, Chatel JM. Erratum to: Surface display of an anti-DEC-205 single chain Fv fragment in Lactobacillus plantarum increases internalization and plasmid transfer to dendritic cells in vitro and in vivo. Microb Cell Fact 2015; 14:184. [PMID: 26577178 PMCID: PMC4650506 DOI: 10.1186/s12934-015-0366-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 10/22/2015] [Indexed: 11/10/2022] Open
Affiliation(s)
- Christophe Michon
- INRA, UMR1319 MICALIS, Bat 440, R-2, 78352, Jouy-en-Josas, France.,AgroParisTech, UMR MICALIS, 78352, Jouy-en-Josas, France
| | - Katarzyna Kuczkowska
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Aas, Norway
| | - Philippe Langella
- INRA, UMR1319 MICALIS, Bat 440, R-2, 78352, Jouy-en-Josas, France.,AgroParisTech, UMR MICALIS, 78352, Jouy-en-Josas, France
| | - Vincent G H Eijsink
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Aas, Norway
| | - Geir Mathiesen
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Aas, Norway
| | - Jean-Marc Chatel
- INRA, UMR1319 MICALIS, Bat 440, R-2, 78352, Jouy-en-Josas, France. .,AgroParisTech, UMR MICALIS, 78352, Jouy-en-Josas, France.
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32
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Aubry C, Michon C, Chain F, Chvatchenko Y, Goffin L, Zimmerli SC, Leguin S, Langella P, Bermudez-Humaran L, Chatel JM. Protective effect of TSLP delivered at the gut mucosa level by recombinant lactic acid bacteria in DSS-induced colitis mouse model. Microb Cell Fact 2015; 14:176. [PMID: 26546058 PMCID: PMC4636794 DOI: 10.1186/s12934-015-0367-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/23/2015] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Thymic stromal lymphopoietin (TSLP) is a cytokine known to mature dendritics cells, lower pro-inflammatory IL-12 secretion, induce differentiation of anti-inflammatory FoxP3+ regulatory T cells (Treg). Moreover, Crohn's disease patients have shown a reduction of intestinal TSLP expression. To understand the role of TSLP in inflammation, we constructed Lactococcus lactis strain producing TSLP (LL-TSLP) and investigated the effect of its administration on dextran sulfate sodium (DSS)-induced colitis model in mice. RESULTS LL-TSLP secrete an active molecule which lowers secretion of IL-12 by dendritic cells. Treatment with LL-TSLP, increases the amount of TGF-β secreted by T cells in Mesenteric Lymph Node in healthy mice. In acute DSS-induced colitis, LL-TSLP delayed the Disease Activity Index and lowered histological score and colonic INF-γ production. In a DSS-recovery model, LL-TSLP induced a better protective effect if the strain was administered at the beginning of the colitis. At Day 4 of colitis we observed an induction of Treg by LL-TSLP. CONCLUSIONS TSLP showed an anti-inflammatory protective role in DSS-induced colitis. We have demonstrated that a short and early administration of LL-TSLP is more efficient than a long lasting treatment.
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Affiliation(s)
- Camille Aubry
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
| | - Christophe Michon
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
| | - Florian Chain
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
| | | | | | | | - Sylvia Leguin
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
| | - Philippe Langella
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
| | - Luis Bermudez-Humaran
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
| | - Jean-Marc Chatel
- INRA, UMR1319 Micalis, 78350, Jouy-en-Josas, France. .,AgroParisTech, UMR Micalis, 78350, Jouy-en-Josas, France.
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33
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Michon C, Christophe M, Kuczkowska K, Langella P, Eijsink VGH, Mathiesen G, Chatel JM. Surface display of an anti-DEC-205 single chain Fv fragment in Lactobacillus plantarum increases internalization and plasmid transfer to dendritic cells in vitro and in vivo. Microb Cell Fact 2015; 14:95. [PMID: 26141059 PMCID: PMC4491208 DOI: 10.1186/s12934-015-0290-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 06/24/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Lactic acid bacteria (LAB) are promising vehicles for delivery of a variety of medicinal compounds, including antigens and cytokines. It has also been established that LAB are able to deliver cDNA to host cells. To increase the efficiency of LAB-driven DNA delivery we have constructed Lactobacillus plantarum strains targeting DEC-205, which is a receptor located at the surface of dendritic cells (DCs). The purpose was to increase uptake of bacterial cells, which could lead to improved cDNA delivery to immune cells. RESULTS Anti-DEC-205 antibody (aDec) was displayed at the surface of L. plantarum using three different anchoring strategies: (1) covalent anchoring of aDec to the cell membrane (Lipobox domain, Lip); (2) covalent anchoring to the cell wall (LPXTG domain, CWA); (3) non-covalent anchoring to the cell wall (LysM domain, LysM). aDec was successfully expressed in all three strains, but surface location of the antibody could only be demonstrated for the two strains with cell wall anchors (CWA and LysM). Co-incubation of the engineered strains and DCs showed increased uptake when anchoring aDec using the CWA or LysM anchors. In a competition assay, free anti-DEC abolished the increased uptake, showing that the internalization is due to specific interactions between the DEC-205 receptor and aDec. To test plasmid transfer, a plasmid for expression of GFP under control of an eukaryotic promoter was transformed into the aDec expressing strains and GFP expression in DCs was indeed increased when using the strains producing cell-wall anchored aDec. Plasmid transfer to DCs in the gastro intestinal tract was also detected using a mouse model. Surprisingly, in mice the highest expression of GFP was observed for the strain in which aDec was coupled to the cell membrane. CONCLUSION The results show that surface expression of aDec leads to increased internalization of L. plantarum and plasmid transfer in DCs and that efficiency depends on the type of anchor used. Interestingly, in vitro data indicates that cell wall anchoring is more effective, whereas in vivo data seem to indicate that anchoring to the cell membrane is preferable. It is likely that the more embedded localization of aDec in the latter case is favorable when cells are exposed to the harsh conditions of the gastro-intestinal tract.
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Affiliation(s)
| | - Michon Christophe
- INRA, UMR1319 MICALIS, Bat 440, R-2, 78352, Jouy-en-Josas, France. .,AgroParisTech, UMR MICALIS, 78352, Jouy-en-Josas, France.
| | - Katarzyna Kuczkowska
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Aas, Norway.
| | - Philippe Langella
- INRA, UMR1319 MICALIS, Bat 440, R-2, 78352, Jouy-en-Josas, France. .,AgroParisTech, UMR MICALIS, 78352, Jouy-en-Josas, France.
| | - Vincent G H Eijsink
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Aas, Norway.
| | - Geir Mathiesen
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Aas, Norway.
| | - Jean-Marc Chatel
- INRA, UMR1319 MICALIS, Bat 440, R-2, 78352, Jouy-en-Josas, France. .,AgroParisTech, UMR MICALIS, 78352, Jouy-en-Josas, France.
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34
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Zurita-Turk M, Del Carmen S, Santos ACG, Pereira VB, Cara DC, Leclercq SY, de LeBlanc ADM, Azevedo V, Chatel JM, LeBlanc JG, Miyoshi A. Lactococcus lactis carrying the pValac DNA expression vector coding for IL-10 reduces inflammation in a murine model of experimental colitis. BMC Biotechnol 2014; 14:73. [PMID: 25106058 PMCID: PMC4129430 DOI: 10.1186/1472-6750-14-73] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 08/04/2014] [Indexed: 12/20/2022] Open
Abstract
Background Inflammatory bowel diseases (IBD) are intestinal disorders characterized by inflammation in the gastrointestinal tract. Interleukin-10 is one of the most important anti-inflammatory cytokines involved in the intestinal immune system and because of its role in downregulating inflammatory cascades, its potential for IBD therapy is under study. We previously presented the development of an invasive strain of Lactococcus lactis (L. lactis) producing Fibronectin Binding Protein A (FnBPA) which was capable of delivering, directly to host cells, a eukaryotic DNA expression vector coding for IL-10 of Mus musculus (pValac:il-10) and diminish inflammation in a trinitrobenzene sulfonic acid (TNBS)-induced mouse model of intestinal inflammation. As a new therapeutic strategy against IBD, the aim of this work was to evaluate the therapeutic effect of two L. lactis strains (the same invasive strain evaluated previously and the wild-type strain) carrying the therapeutic pValac:il-10 plasmid in the prevention of inflammation in a dextran sodium sulphate (DSS)-induced mouse model. Results Results obtained showed that not only delivery of the pValac:il-10 plasmid by the invasive strain L. lactis MG1363 FnBPA+, but also by the wild-type strain L. lactis MG1363, was effective at diminishing intestinal inflammation (lower inflammation scores and higher IL-10 levels in the intestinal tissues, accompanied by decrease of IL-6) in the DSS-induced IBD mouse model. Conclusions Administration of both L. lactis strains carrying the pValac:il-10 plasmid was effective at diminishing inflammation in this murine model of experimental colitis, showing their potential for therapeutic intervention of IBD.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Anderson Miyoshi
- Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.
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35
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Pontes D, Azevedo M, Innocentin S, Blugeon S, Lefévre F, Azevedo V, Miyoshi A, Courtin P, Chapot-Chartier MP, Langella P, Chatel JM. Immune response elicited by DNA vaccination using Lactococcus lactis is modified by the production of surface exposed pathogenic protein. PLoS One 2014; 9:e84509. [PMID: 24465412 PMCID: PMC3897362 DOI: 10.1371/journal.pone.0084509] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 11/21/2013] [Indexed: 01/02/2023] Open
Abstract
In this study, we compared immune responses elicited by DNA immunization using Lactococcus lactis or L. lactis expressing the Staphylococcus aureus invasin Fibronectin Binding Protein A (FnBPA) at its surface. Both strains carried pValac:BLG, a plasmid containing the cDNA of Beta-Lactoglobulin (BLG), and were designated LL-BLG and LL-FnBPA+ BLG respectively. A TH2 immune response characterized by the secretion of IL-4 and IL-5 in medium of BLG reactivated splenocytes was detected after either oral or intranasal administration of LL-FnBPA+ BLG. In contrast, intranasal administration of LL-BLG elicited a TH1 immune response. After BLG sensitization, mice previously intranasally administered with LL-BLG showed a significantly lower concentration of BLG-specific IgE than the mice non-administered. Altenatively administration of LL-FnBPA+ BLG didn't modify the BLG-specific IgE concentration obtained after sensitization, thus confirming the TH2 orientation of the immune response. To determine if the TH2-skewed immune response obtained with LL-FnBpA+ BLG was FnBPA-specific or not, mice received another L. lactis strain producing a mutated form of the Listeria monocytogenes invasin Internalin A intranasally, allowing thus the binding to murine E-cadherin, and containing pValac:BLG (LL-mInlA+ BLG). As with LL-FnBPA+ BLG, LL-mInlA+ BLG was not able to elicit a TH1 immune response. Furthermore, we observed that these difference were not due to the peptidoglycan composition of the cell wall as LL-FnBPA+ BLG, LL-mInlA+ BLG and LL-BLG strains shared a similar composition. DNA vaccination using LL-BLG elicited a pro-inflammatory TH1 immune response while using LL-FnBPA+ BLG or LL-mInlA+ BLG elicited an anti-inflammatory TH2 immune response.
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MESH Headings
- Adhesins, Bacterial/genetics
- Adhesins, Bacterial/immunology
- Administration, Intranasal
- Administration, Oral
- Animals
- Bacterial Proteins/genetics
- Bacterial Proteins/immunology
- Cell Engineering
- Drug Delivery Systems/methods
- Female
- Immunity, Active
- Immunity, Cellular
- Lactococcus lactis/genetics
- Lactococcus lactis/immunology
- Lactoglobulins/genetics
- Lactoglobulins/immunology
- Listeriosis/immunology
- Listeriosis/prevention & control
- Mice
- Mice, Inbred BALB C
- Plasmids
- Staphylococcal Infections/immunology
- Staphylococcal Infections/prevention & control
- Th1 Cells/cytology
- Th1 Cells/immunology
- Th2 Cells/cytology
- Th2 Cells/immunology
- Vaccination
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/biosynthesis
- Vaccines, DNA/genetics
- Vaccines, Synthetic
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Affiliation(s)
- Daniela Pontes
- State University of Paraiba, Campus V, Department of Biological Sciences. João Pessoa, Paraíba, Brazil
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
| | - Marcela Azevedo
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
- Institute of Biological Sciences, Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, Minas Gerais, Brazil
| | - Silvia Innocentin
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
- Lymphocyte Signaling and Development Laboratory, Babraham Institute, Babraham Research Campus, Cambridge, United Kingdom
| | - Sébastien Blugeon
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
| | | | - Vasco Azevedo
- Institute of Biological Sciences, Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, Minas Gerais, Brazil
| | - Anderson Miyoshi
- Institute of Biological Sciences, Federal University of Minas Gerais (UFMG-ICB), Belo Horizonte, Minas Gerais, Brazil
| | - Pascal Courtin
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
| | - Marie-Pierre Chapot-Chartier
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
| | - Philippe Langella
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
| | - Jean-Marc Chatel
- INRA, UMR1319 Micalis, Domaine de Vilvert, Jouy-en-Josas, France
- AgroParisTech, UMR1319 Micalis, Jouy-en-Josas, France
- * E-mail:
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Bermúdez-Humarán LG, Aubry C, Motta JP, Deraison C, Steidler L, Vergnolle N, Chatel JM, Langella P. Engineering lactococci and lactobacilli for human health. Curr Opin Microbiol 2013; 16:278-83. [PMID: 23850097 DOI: 10.1016/j.mib.2013.06.002] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 06/11/2013] [Accepted: 06/11/2013] [Indexed: 02/06/2023]
Abstract
Food-grade lactic acid bacteria (LAB) are good candidates for the development of oral vectors, and are attractive alternatives to attenuated pathogens, for mucosal delivery strategies. In this review, we summarize recent results on the use of LAB as mucosal delivery vectors for therapeutic proteins and DNA vaccines. Most of this work has been based on the model LAB, Lactococcus lactis, which is suitable for the heterologous expression of therapeutic proteins. Recombinant lactococci and lactobacilli strains expressing antiproteases and antioxidant enzymes have been tested successfully for their prophylactic and therapeutic effects in murine models of colitis. Recombinant lactococci secreting autoantigens have been found to be effective for the treatment of type 1 diabetes. Also, recombinant lactococci delivering DNA were able to prevent a bovine β-lactoglobulin (BLG)-allergic reaction in mice. We believe that these various coherent findings demonstrate the potential value of using LAB, particularly lactococci and lactobacilli strains, to develop novel vectors for the therapeutic delivery of proteins to mucosal surfaces. Further tests and in particular human clinical trials are now important next steps to conclude on the benefit of these approaches for human health.
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Affiliation(s)
- Luis G Bermúdez-Humarán
- INRA, Commensal and Probiotics-Host Interactions Laboratory, UMR 1319 Micalis, F-78350 Jouy-en-Josas, France
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Miquel S, Martín R, Rossi O, Bermúdez-Humarán LG, Chatel JM, Sokol H, Thomas M, Wells JM, Langella P. Faecalibacterium prausnitzii and human intestinal health. Curr Opin Microbiol 2013; 16:255-61. [DOI: 10.1016/j.mib.2013.06.003] [Citation(s) in RCA: 633] [Impact Index Per Article: 57.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 06/11/2013] [Accepted: 06/11/2013] [Indexed: 12/12/2022]
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LeBlanc JG, Aubry C, Cortes-Perez NG, de Moreno de LeBlanc A, Vergnolle N, Langella P, Azevedo V, Chatel JM, Miyoshi A, Bermúdez-Humarán LG. Mucosal targeting of therapeutic molecules using genetically modified lactic acid bacteria: an update. FEMS Microbiol Lett 2013; 344:1-9. [PMID: 23600579 DOI: 10.1111/1574-6968.12159] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Accepted: 04/15/2013] [Indexed: 12/21/2022] Open
Abstract
Lactic acid bacteria (LAB) represent a heterogeneous group of microorganisms naturally present in many foods and those have proved to be effective mucosal delivery vectors. Moreover, some specific strains of LAB exert beneficial properties (known as probiotic effect) on both human and animal health. Although probiotic effects are strain-specific traits, it is theoretically possible, using genetic engineering techniques, to design strains that can exert a variety of beneficial properties. During the two past decades, a large variety of therapeutic molecules has been successfully expressed in LAB, and although this field has been largely reviewed in recent years, approximately 20 new publications appear each year. Thus, the aim of this minireview is not to extensively assess the entire literature but to update progress made within the last 2 years regarding the use of the model LAB Lactococcus lactis and certain species of lactobacilli as live recombinant vectors for the development of new safe mucosal vaccines.
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Affiliation(s)
- Jean Guy LeBlanc
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucuman, Argentina
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Bakhtiar SM, LeBlanc JG, Salvucci E, Ali A, Martin R, Langella P, Chatel JM, Miyoshi A, Bermúdez-Humarán LG, Azevedo V. Implications of the human microbiome in inflammatory bowel diseases. FEMS Microbiol Lett 2013; 342:10-7. [PMID: 23431991 DOI: 10.1111/1574-6968.12111] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 02/19/2013] [Accepted: 02/19/2013] [Indexed: 12/17/2022] Open
Abstract
The study of the human microbiome or community of microorganisms and collection of genomes found in the human body is one of the fastest growing research areas because many diseases are reported to be associated with microbiome imbalance or dysbiosis. With the improvement in novel sequencing techniques, researchers are now generating millions of sequences of different sites from the human body and evaluating specific differences in microbial communities. The importance of microbiome constituency is so relevant that several consortia like the Human Microbiome project (HMP) and Metagenomics of the Human Intestinal Tract (MetaHIT) project are focusing mainly on the human microbiome. The aim of this review is to highlight points of research in this field, mainly focusing on particular factors that modulate the microbiome and important insights into its potential impact on our health and well-being.
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Affiliation(s)
- Syeda M Bakhtiar
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
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de Azevedo M, Karczewski J, Lefévre F, Azevedo V, Miyoshi A, Wells JM, Langella P, Chatel JM. In vitro and in vivo characterization of DNA delivery using recombinant Lactococcus lactis expressing a mutated form of L. monocytogenes Internalin A. BMC Microbiol 2012; 12:299. [PMID: 23253484 PMCID: PMC3541092 DOI: 10.1186/1471-2180-12-299] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 12/14/2012] [Indexed: 12/20/2022] Open
Abstract
Background The use of food-grade Lactic Acid Bacteria (LAB) as DNA delivery vehicles represents an attractive strategy to deliver DNA vaccines at the mucosal surfaces as they are generally regarded as safe (GRAS). We previously showed that either native Lactococcus lactis (LL) or recombinant invasive LL expressing Fibronectin Binding Protein A of Staphylococcus aureus (LL-FnBPA+) or Internalin A of Listeria monocytogenes (LL-InlA+), were able to deliver and trigger DNA expression by epithelial cells, either in vitro or in vivo. InlA does not bind to its receptor, the murine E-cadherin, thus limiting the use of LL-InlA+ in in vivo murine models. Moreover, FnBPA binds to its receptors, integrins, via fibronectin introducing another limiting factor. In order to avoid the limitations of LL-InlA+ and LL-FnBPA+, a new L. lactis strain was engineered to produce a previously described mutated form of InlA (LL-mInlA+) allowing the binding of mInlA on murine E-cadherin. Results After showing the expression of mInLA at the surface of LL-mInlA+ strain, in vitro gentamycin survival assay in Caco-2 cells showed that LL-mInlA+ is 1000 times more invasive than LL. LL-mInlA+ invasivity was also validated by fluorescence microscopy. LL and LL-mInlA+ were transformed with pValacBLG, a plasmid containing the cDNA of bovine β-Lactoglobulin (BLG), resulting in strains LL-BLG and LL-mInlA+BLG. The plasmid transfer in vitro using LL-mInlA+BLG was increased 10 times compared to LL-BLG. Moreover, the number of mice producing BLG in isolated enterocytes after oral administration of LL-mInlA+BLG in vivo was slightly higher than after oral administration of LL-BLG. Conclusions We confirmed in this study that the production of mInlA at the surface of L. lactis is a promising strategy for plasmid transfer in vitro and in vivo.
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Affiliation(s)
- Marcela de Azevedo
- INRA, UMR1319 Micalis, Commensals and Probiotics-Host Interactions Laboratory, Jouy-en-Josas, France
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Pontes D, Innocentin S, Del Carmen S, Almeida JF, Leblanc JG, de Moreno de Leblanc A, Blugeon S, Cherbuy C, Lefèvre F, Azevedo V, Miyoshi A, Langella P, Chatel JM. Production of Fibronectin Binding Protein A at the surface of Lactococcus lactis increases plasmid transfer in vitro and in vivo. PLoS One 2012; 7:e44892. [PMID: 23028664 PMCID: PMC3459934 DOI: 10.1371/journal.pone.0044892] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Accepted: 08/15/2012] [Indexed: 12/23/2022] Open
Abstract
Lactococci are noninvasive lactic acid bacteria frequently used as protein delivery vectors and, more recently, as DNA delivery vehicles. We previously showed that Lactococcus lactis (LL) expressing the Fibronectin-Binding Protein A of Staphylococcus aureus (LL-FnBPA+) showed higher internalization rates in vitro in Caco-2 cells than the native (wt) lactococci and were able to deliver a eukaryotic Green Fluorescent Protein (GFP) expression plasmid in 1% of human Caco-2 cells. Here, using the bovine beta-lactoglobulin (BLG), one of the major cow's milk allergen, and GFP we characterized the potential of LL-FnBPA+ as an in vivo DNA vaccine delivery vehicle. We first showed that the invasive strain LL-FnBPA+ carrying the plasmid pValac:BLG (LL-FnBPA+ BLG) was more invasive than LL-BLG and showed the same invasivity as LL-FnBPA+. Then we demonstrated that the Caco-2 cells, co-incubated with LL-FnBPA+ BLG produced up to 30 times more BLG than the Caco-2 cells co-incubated with the non invasive LL-BLG. Using two different gene reporters, BLG and GFP, and two different methods of detection, EIA and fluorescence microscopy, we showed in vivo that: i) in order to be effective, LL-FnBPA+ required a pre-coating with Fetal Calf Serum before oral administration; ii) plasmid transfer occurred in enterocytes without regard to the strains used (invasive or not); iii) the use of LL-FnBPA+ increased the number of mice producing BLG, but not the level of BLG produced. We thus confirmed the good potential of invasive recombinant lactic acid bacteria as DNA delivery vector in vivo.
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Bermúdez-Humarán LG, Kharrat P, Chatel JM, Langella P. Lactococci and lactobacilli as mucosal delivery vectors for therapeutic proteins and DNA vaccines. Microb Cell Fact 2011; 10 Suppl 1:S4. [PMID: 21995317 PMCID: PMC3231930 DOI: 10.1186/1475-2859-10-s1-s4] [Citation(s) in RCA: 159] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Food-grade Lactic Acid Bacteria (LAB) have been safely consumed for centuries by humans in fermented foods. Thus, they are good candidates to develop novel oral vectors, constituting attractive alternatives to attenuated pathogens, for mucosal delivery strategies. Herein, this review summarizes our research, up until now, on the use of LAB as mucosal delivery vectors for therapeutic proteins and DNA vaccines. Most of our work has been based on the model LAB Lactococcus lactis, for which we have developed efficient genetic tools, including expression signals and host strains, for the heterologous expression of therapeutic proteins such as antigens, cytokines and enzymes. Resulting recombinant lactococci strains have been tested successfully for their prophylactic and therapeutic effects in different animal models: i) against human papillomavirus type 16 (HPV-16)-induced tumors in mice, ii) to partially prevent a bovine β-lactoglobulin (BLG)-allergic reaction in mice and iii) to regulate body weight and food consumption in obese mice. Strikingly, all of these tools have been successfully transposed to the Lactobacillus genus, in recent years, within our laboratory. Notably, anti-oxidative Lactobacillus casei strains were constructed and tested in two chemically-induced colitis models. In parallel, we also developed a strategy based on the use of L. lactis to deliver DNA at the mucosal level, and were able to show that L. lactis is able to modulate the host response through DNA delivery. Today, we consider that all of our consistent data, together with those obtained by other groups, demonstrate and reinforce the interest of using LAB, particularly lactococci and lactobacilli strains, to develop novel therapeutic protein mucosal delivery vectors which should be tested now in human clinical trials.
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Affiliation(s)
- Luis G Bermúdez-Humarán
- INRA, UMR1319 Micalis, Commensal and Probiotics-Host Interactions Laboratory, Domaine de Vilvert, 78352 Jouy-en-Josas Cedex, France
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Pontes DS, de Azevedo MSP, Chatel JM, Langella P, Azevedo V, Miyoshi A. Lactococcus lactis as a live vector: heterologous protein production and DNA delivery systems. Protein Expr Purif 2011; 79:165-75. [PMID: 21704169 DOI: 10.1016/j.pep.2011.06.005] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 06/07/2011] [Accepted: 06/08/2011] [Indexed: 11/30/2022]
Abstract
Lactic acid bacteria (LAB), widely used in the food industry, are present in the intestine of most animals, including humans. The potential use of these bacteria as mucosal delivery vehicles for vaccinal, medical or technological use has been extensively investigated. Lactococcus lactis, a LAB species, is a potential candidate for the production of biologically useful proteins and for plasmid DNA delivery to eukaryotic cells. Several delivery systems have been developed to target heterologous proteins to a specific cell location (i.e., cytoplasm, cell wall or extracellular medium) and more recently to efficiently transfer DNA to eukaryotic cells. A promising application of L. lactis is its use for the development of live mucosal vaccines. Here, we have reviewed the expression of heterologous protein and the various delivery systems developed for L. lactis, as well as its use as an oral vaccine carrier.
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Affiliation(s)
- Daniela Santos Pontes
- Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte-MG, Brazil
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Guimarães V, Innocentin S, Chatel JM, Lefèvre F, Langella P, Azevedo V, Miyoshi A. A new plasmid vector for DNA delivery using lactococci. Genet Vaccines Ther 2009; 7:4. [PMID: 19208231 PMCID: PMC2646724 DOI: 10.1186/1479-0556-7-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2008] [Accepted: 02/10/2009] [Indexed: 11/10/2022]
Abstract
BACKGROUND The use of food-grade lactococci as bacterial carriers to DNA delivery into epithelial cells is a new strategy to develop live oral DNA vaccine. Our goal was to develop a new plasmid, named pValac, for antigen delivery for use in lactococci. The pValac plasmid was constructed by the fusion of: i) a eukaryotic region, allowing the cloning of an antigen of interest under the control of the pCMV eukaryotic promoter to be expressed by a host cell and ii) a prokaryotic region allowing replication and selection of bacteria. In order to evaluate pValac functionality, the gfp ORF was cloned into pValac (pValac:gfp) and was analysed by transfection in PK15 cells. The applicability of pValac was demonstrated by invasiveness assays of Lactococcus lactis inlA+ strains harbouring pValac:gfp into Caco-2 cells. RESULTS After transfection with pValac:gfp, we observed GFP expression in PK15 cells. L. lactis inlA+ were able to invade Caco-2 cells and delivered a functional expression cassette (pCMV:gfp) into epithelial cells. CONCLUSION We showed the potential of an invasive L. lactis harbouring pValac to DNA delivery and subsequent triggering DNA expression by epithelial cells. Further work will be to examine whether these strains are able to deliver DNA in intestinal cells in vivo.
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Affiliation(s)
- Valeria Guimarães
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB-UFMG), Belo Horizonte - MG, Brasil.
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Guimarães VD, Innocentin S, Lefèvre F, Azevedo V, Wal JM, Langella P, Chatel JM. Use of native lactococci as vehicles for delivery of DNA into mammalian epithelial cells. Appl Environ Microbiol 2006; 72:7091-7. [PMID: 16963550 PMCID: PMC1636207 DOI: 10.1128/aem.01325-06] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The use of the food-grade bacterium Lactococcus lactis as a DNA delivery vehicle at the mucosal level is an attractive DNA vaccination strategy. Previous experiments showed that recombinant L. lactis expressing the Listeria monocytogenes inlA gene can deliver a functional gene into mammalian cells. Here, we explored the potential use of noninvasive L. lactis strains as a DNA delivery vehicle. We constructed two Escherichia coli-L. lactis shuttle plasmids, pLIG:BLG1 and pLIG:BLG2, containing a eukaryotic expression cassette with the cDNA of bovine beta-lactoglobulin (BLG). The greatest BLG expression after transfection of Cos-7 cells was obtained with pLIG:BLG1, which was then used to transform L. lactis MG1363. The resulting L. lactis strain MG1363(pLIG:BLG1) was not able to express BLG. The potential of L. lactis as a DNA delivery vehicle was analyzed by detection of BLG in Caco-2 human colon carcinoma cells after 3 h of coincubation with (i) purified pLIG:BLG1, (ii) MG1363(pLIG:BLG1), (iii) a mix of MG1363(pLIG) and purified pLIG:BLG1, and (iv) MG1363. Both BLG cDNA and BLG expression were detected only in Caco-2 cells coincubated with MG1363(pLIG:BLG1). There was a decrease in the BLG cDNA level in Caco-2 cells between 24 and 48 h after coincubation. BLG expression by Caco-2 cells started at 24 h and increased between 24 and 72 h. BLG secretion by Caco-2 cells started 48 h after coincubation with MG1363(pLIG:BLG1). We conclude that lactococci can deliver BLG cDNA into mammalian epithelial cells, demonstrating their potential to deliver in vivo a DNA vaccine.
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Nouaille S, Bermúdez-Humarán LG, Adel-Patient K, Commissaire J, Gruss A, Wal JM, Azevedo V, Langella P, Chatel JM. Improvement of bovine ß-lactoglobulin production and secretion by Lactococcus lactis. Braz J Med Biol Res 2005; 38:353-9. [PMID: 15761614 DOI: 10.1590/s0100-879x2005000300005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The stabilizing effects of staphylococcal nuclease (Nuc) and of a synthetic propeptide (LEISSTCDA, hereafter called LEISS) on the production of a model food allergen, bovine beta-lactoglobulin (BLG), in Lactococcus lactis were investigated. The fusion of Nuc to BLG (Nuc-BLG) results in higher production and secretion of the hybrid protein. When LEISS was fused to BLG, the production of the resulting protein LEISS-BLG was only slightly improved compared to the one obtained with Nuc-BLG. However, the secretion of LEISS-BLG was dramatically enhanced (approximately 10- and 4-fold higher than BLG and Nuc-BLG, respectively). Finally, the fusion of LEISS to Nuc-BLG resulting in the protein LEISS-Nuc-BLG led to the highest production of the hybrid protein, estimated at approximately 8 microg/ml (approximately 2-fold higher than Nuc-BLG). In conclusion, the fusions described here led to the improvement of the production and secretion of BLG. These tools will be used to modulate the immune response against BLG via delivery of recombinant lactococci at the mucosal level, in a mouse model of cow's milk allergy.
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Affiliation(s)
- S Nouaille
- Dairy Research and Applied Genetics Unit, INRA, Domaine de Vilvert, Jouy en Josas cedex, France
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Chatel JM, Nouaille S, Adel-Patient K, Le Loir Y, Boe H, Gruss A, Wal JM, Langella P. Characterization of a Lactococcus lactis strain that secretes a major epitope of bovine beta-lactoglobulin and evaluation of its immunogenicity in mice. Appl Environ Microbiol 2004; 69:6620-7. [PMID: 14602621 PMCID: PMC262270 DOI: 10.1128/aem.69.11.6620-6627.2003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Bovine beta-lactoglobulin (Blg) is one of the major cow's milk allergens. Peptide 41-60 of Blg (Blg41-60) was described as a murine T-cell determinant and a murine, rat, and human immunoglobulin E (IgE) epitope. The aim of this study was the expression of Blg41-60 as a fusion protein in the food-grade bacterium Lactococcus lactis and the characterization of its immunogenicity in mice. We constructed a recombinant strain of L. lactis capable of inducible production and secretion of Blg41-60::Nuc, a fusion protein between Blg41-60 and the mature part of the staphylococcal nuclease (Nuc). The highest production yield of Blg41-60::Nuc (32.5 mg/liter) was reached 4 h after induction. At this time, up to 75% of Blg41-60::Nuc was secreted. When monoclonal antibodies specific for Blg41-60 were used, purified Blg41-60::Nuc and synthetic Blg41-60 exhibited very similar immunoreactivities. Subcutaneous coadministration of purified Blg41-60::Nuc and killed nonrecombinant L. lactis resulted in the induction of specific anti-Blg41-60 IgG2a and IgG1. The IgG1/IgG2a ratio and the lack of specific IgE suggest a Th1-type immune response, i.e., a nonallergic response. Similar administrations of the killed Blg41-60::Nuc-producing L. lactis strain did not elicit a specific immune response, whereas a transitory mucosal IgA-specific immune response was induced in mice after oral administration of the live Blg41-60::Nuc-producing L. lactis strain.
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Affiliation(s)
- Jean-Marc Chatel
- Unité d'Immuno-Allergie Alimentaire, INRA/CEA, CE de Saclay, DRM-SPI, 91191 Gif-sur-Yvette, France
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Chatel JM, Song L, Bhogal B, Orson FM. Various factors (allergen nature, mouse strain, CpG/recombinant protein expressed) influence the immune response elicited by genetic immunization. Allergy 2003; 58:641-7. [PMID: 12823125 DOI: 10.1034/j.1398-9995.2003.00182.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Genetic immunization is a very promising therapeutic approach for allergy treatment. In the present study we investigate the influence of the nature of the allergen, the mouse strain, and the relative amount of CpG to expressed recombinant protein on immune responses using two major peanut allergens, Ara h 1 and Ara h 4. METHODS The cDNA of Ara h 1 and of an isoform of Ara h 4 were cloned and inserted in pcDNA3. Antigen specific IgG1, IgG2a and IgE were followed after genetic immunization with 100 microg of these clones in mouse strain SKH-Hr1 or BALB/c and with 1 microg of the clones+99 blank plasmid in SKH-Hr1. RESULTS Genetic immunization in SKH-Hr1 with Ara h 1 elicited a classical Th1 type response, but Ara h 4 elicited a mixed Th1/Th2 response with high IgG1 and even IgE in some mice. In BALB/c both plasmids produced a high IgG1 level. Decreasing the amount of plasmid injected did not change the immune response profile. However, increasing the amount of CpG administered relative to the recombinant Ara h 4 protein expressed reversed the Th1/Th2 response pattern in SKH-Hr1 mice. CONCLUSIONS Immune responses after genetic immunization are strongly influenced by the nature of the allergen, the mouse strain, and the ratio of CpG to recombinant protein expressed.
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Affiliation(s)
- J M Chatel
- Veterans Affairs Medical Center, Baylor College of Medicine, Houston, TX, USA
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Chatel JM, Bernard H, Orson FM. Isolation and characterization of two complete Ara h 2 isoforms cDNA. Int Arch Allergy Immunol 2003; 131:14-8. [PMID: 12759484 DOI: 10.1159/000070429] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2002] [Accepted: 02/03/2003] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Ara h 2 is a major peanut allergen recognized by IgE in more than 90% of patients. After electrophoretic separation the purified protein exists as a doublet, and sequences of one incomplete cDNA and one genomic clone for this allergen have been reported. METHODS Ara h 2 isoforms were purified and analyzed by mass spectroscopy, and PCR amplification products of Ara h 2 were cloned and sequenced. RESULTS Mass spectroscopy of purified Ara h 2 clearly identified a molecular doublet of 16,670 and 18,050 Daltons. Amplification of a peanut cDNA library using PCR primer pairs located at the amino- and carboxy-terminus revealed 2 bands separated by 50 base pairs, which we cloned and sequenced. Two types of complete cDNA clones were obtained, Ara h 2.01 and Ara h 2.02. Compared to Ara h 2.01 and the previously reported cDNA sequences, Ara h 2.02 is characterized by a 12 amino acid insertion starting at position 75 that contains a third repeat of the major IgE binding epitope DPYSPS. CONCLUSION We demonstrated the molecular and genetic characteristics of two Ara h 2 isoforms, revealing that one, Ara h 2.02, might be the more potent allergen.
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MESH Headings
- 2S Albumins, Plant
- Amino Acid Sequence
- Antigens, Plant
- Cloning, Molecular
- Codon, Initiator/classification
- Codon, Initiator/genetics
- Codon, Initiator/isolation & purification
- Codon, Terminator/classification
- Codon, Terminator/genetics
- Codon, Terminator/isolation & purification
- DNA Primers/classification
- DNA Primers/genetics
- DNA Primers/isolation & purification
- DNA Transposable Elements/genetics
- DNA Transposable Elements/immunology
- DNA, Complementary/classification
- DNA, Complementary/genetics
- DNA, Complementary/isolation & purification
- Glycoproteins/classification
- Glycoproteins/genetics
- Glycoproteins/isolation & purification
- Humans
- Immunoglobulin E/genetics
- Immunoglobulin E/immunology
- Mass Spectrometry
- Molecular Sequence Data
- Molecular Weight
- Open Reading Frames/genetics
- Plant Proteins
- Polymerase Chain Reaction
- Protein Isoforms/classification
- Protein Isoforms/genetics
- Protein Isoforms/isolation & purification
- Terminal Repeat Sequences/genetics
- Terminal Repeat Sequences/immunology
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Affiliation(s)
- Jean-Marc Chatel
- Veterans Affairs Medical Center, Baylor College of Medicine, Houston, Tex., USA.
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Adel-Patient K, Créminon C, Boquet D, Wal JM, Chatel JM. [Prevention of an IgE response to bovine beta-lactoglobulin by gene immunization in mice]. Allerg Immunol (Paris) 2002; 34:77-81. [PMID: 12012791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The therapeutic routes for the treatment of allergy have as their objective to prevent or diminish the specific IgE responsible for the appearance of the allergic reaction. This allergic reaction survives in the genetically predisposed subject and results in a dis-equilibrium of the "Th1-Th2 balance" by increasing the Th2 response. This Th2 response induces the production of IgE against environmental antigens, which from that time on become allergens. In this context, use of gene immunisation seems to be very interesting. The immunisation consists of the injection of an expression vector of bacterial origin, containing the cDNA of a protein of interest. Different studies have shown that the injection of such a plasmid into mice initiates a specific immune response of Th1 (IgG2a) type, stopping all further response of the Th2 (IgG1 and IgE) type. This "non-allergic" response is due to the intrinsic properties of the bacterial ADN, notably the presence of sequences of immunostimulants, the adjuvant of the Th1 response. We have sought to show such a preventative effect in the case of a food protein, bovine beta-lactoglobulin (BLG), a major allergen of cow's milk. Firstly, we made a expression plasmid that contained the cDNA of BLG. Intramuscular administration of this plasmid to mice allowed expression of the BLG in the native form at the site of the injection. The primary response induced by this type of immunisation is characterised by a mixed IgG1/IgG2a response and an absence of anti-BLG IgE. In addition, pre-immunisation of the mice with a plasmid that contained the cDNA of BLG prevented all further sensitisation with the protein administered by the intra-peritoneal route in the presence of alum, an adjuvant of the Th2 response. It appeared further that the preventative effect is dependent on the latent time between gene and protein immunisation. Prevention of the anti-BLG IgE response seems to result in an active inhibition by the cytokines such as interferon-gamma and interleukin 10, rather than a reduction in the production of type Th2 cytokines. Use of efficacious non-pathogenic vectors, that may be administered by the digestive route, could envisage a specific protection in the case of severe food allergies.
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Affiliation(s)
- K Adel-Patient
- Laboratoire Inra d'Immuno-Allergie Alimentaire, Bât 136, CEA de Saclay, 91191 Gif-sur-Yvette, France
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