The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model
- Autores
- Sina Rahme, Bechara; Lestradet, Matthieu; Di Venanzio, Gisela Andrea; Ayyaz, Arshad; Wennida Yamba, Miriam; Lazzaro, Martina; Liégeois, Samuel; Garcia Vescovi, Eleonora; Ferrandon, Dominique
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Serratia marcescens is an opportunistic bacterium that infects a wide range of hosts including humans. It is a potent pathogen in a septic injury model of Drosophila melanogaster since a few bacteria directly injected in the body cavity kill the insect within a day. In contrast, flies do not succumb to ingested bacteria for days even though some bacteria cross the intestinal barrier into the hemolymph within hours. The mechanisms by which S. marcescens attacks enterocytes and damages the intestinal epithelium remain uncharacterized. To better understand intestinal infections, we performed a genetic screen for loss of virulence of ingested S. marcescens and identified FliR, a structural component of the flagellum, as a virulence factor. Next, we compared the virulence of two flagellum mutants fliR and flhD in two distinct S. marcescens strains. Both genes are required for S. marcescens to escape the gut lumen into the hemocoel, indicating that the flagellum plays an important role for the passage of bacteria through the intestinal barrier. Unexpectedly, fliR but not flhD is involved in S. marcescens-mediated damages of the intestinal epithelium that ultimately contribute to the demise of the host. Our results therefore suggest a flagellum-independent role for fliR in bacterial virulence.
Fil: Sina Rahme, Bechara. Centre National de la Recherche Scientifique; Francia
Fil: Lestradet, Matthieu. Centre National de la Recherche Scientifique; Francia
Fil: Di Venanzio, Gisela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Ayyaz, Arshad. Centre National de la Recherche Scientifique; Francia
Fil: Wennida Yamba, Miriam. Centre National de la Recherche Scientifique; Francia
Fil: Lazzaro, Martina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Liégeois, Samuel. Centre National de la Recherche Scientifique; Francia
Fil: Garcia Vescovi, Eleonora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
Fil: Ferrandon, Dominique. Centre National de la Recherche Scientifique; Francia - Materia
-
Serratia
FliR
Drosophila
virulence - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/213723
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The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection modelSina Rahme, BecharaLestradet, MatthieuDi Venanzio, Gisela AndreaAyyaz, ArshadWennida Yamba, MiriamLazzaro, MartinaLiégeois, SamuelGarcia Vescovi, EleonoraFerrandon, DominiqueSerratiaFliRDrosophilavirulencehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Serratia marcescens is an opportunistic bacterium that infects a wide range of hosts including humans. It is a potent pathogen in a septic injury model of Drosophila melanogaster since a few bacteria directly injected in the body cavity kill the insect within a day. In contrast, flies do not succumb to ingested bacteria for days even though some bacteria cross the intestinal barrier into the hemolymph within hours. The mechanisms by which S. marcescens attacks enterocytes and damages the intestinal epithelium remain uncharacterized. To better understand intestinal infections, we performed a genetic screen for loss of virulence of ingested S. marcescens and identified FliR, a structural component of the flagellum, as a virulence factor. Next, we compared the virulence of two flagellum mutants fliR and flhD in two distinct S. marcescens strains. Both genes are required for S. marcescens to escape the gut lumen into the hemocoel, indicating that the flagellum plays an important role for the passage of bacteria through the intestinal barrier. Unexpectedly, fliR but not flhD is involved in S. marcescens-mediated damages of the intestinal epithelium that ultimately contribute to the demise of the host. Our results therefore suggest a flagellum-independent role for fliR in bacterial virulence.Fil: Sina Rahme, Bechara. Centre National de la Recherche Scientifique; FranciaFil: Lestradet, Matthieu. Centre National de la Recherche Scientifique; FranciaFil: Di Venanzio, Gisela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Ayyaz, Arshad. Centre National de la Recherche Scientifique; FranciaFil: Wennida Yamba, Miriam. Centre National de la Recherche Scientifique; FranciaFil: Lazzaro, Martina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Liégeois, Samuel. Centre National de la Recherche Scientifique; FranciaFil: Garcia Vescovi, Eleonora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Ferrandon, Dominique. Centre National de la Recherche Scientifique; FranciaNature2022-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/213723Sina Rahme, Bechara; Lestradet, Matthieu; Di Venanzio, Gisela Andrea; Ayyaz, Arshad; Wennida Yamba, Miriam; et al.; The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model; Nature; Scientific Reports; 12; 1; 2-2022; 1-102045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-022-06780-winfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:28Zoai:ri.conicet.gov.ar:11336/213723instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:35:28.586CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model |
title |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model |
spellingShingle |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model Sina Rahme, Bechara Serratia FliR Drosophila virulence |
title_short |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model |
title_full |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model |
title_fullStr |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model |
title_full_unstemmed |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model |
title_sort |
The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model |
dc.creator.none.fl_str_mv |
Sina Rahme, Bechara Lestradet, Matthieu Di Venanzio, Gisela Andrea Ayyaz, Arshad Wennida Yamba, Miriam Lazzaro, Martina Liégeois, Samuel Garcia Vescovi, Eleonora Ferrandon, Dominique |
author |
Sina Rahme, Bechara |
author_facet |
Sina Rahme, Bechara Lestradet, Matthieu Di Venanzio, Gisela Andrea Ayyaz, Arshad Wennida Yamba, Miriam Lazzaro, Martina Liégeois, Samuel Garcia Vescovi, Eleonora Ferrandon, Dominique |
author_role |
author |
author2 |
Lestradet, Matthieu Di Venanzio, Gisela Andrea Ayyaz, Arshad Wennida Yamba, Miriam Lazzaro, Martina Liégeois, Samuel Garcia Vescovi, Eleonora Ferrandon, Dominique |
author2_role |
author author author author author author author author |
dc.subject.none.fl_str_mv |
Serratia FliR Drosophila virulence |
topic |
Serratia FliR Drosophila virulence |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Serratia marcescens is an opportunistic bacterium that infects a wide range of hosts including humans. It is a potent pathogen in a septic injury model of Drosophila melanogaster since a few bacteria directly injected in the body cavity kill the insect within a day. In contrast, flies do not succumb to ingested bacteria for days even though some bacteria cross the intestinal barrier into the hemolymph within hours. The mechanisms by which S. marcescens attacks enterocytes and damages the intestinal epithelium remain uncharacterized. To better understand intestinal infections, we performed a genetic screen for loss of virulence of ingested S. marcescens and identified FliR, a structural component of the flagellum, as a virulence factor. Next, we compared the virulence of two flagellum mutants fliR and flhD in two distinct S. marcescens strains. Both genes are required for S. marcescens to escape the gut lumen into the hemocoel, indicating that the flagellum plays an important role for the passage of bacteria through the intestinal barrier. Unexpectedly, fliR but not flhD is involved in S. marcescens-mediated damages of the intestinal epithelium that ultimately contribute to the demise of the host. Our results therefore suggest a flagellum-independent role for fliR in bacterial virulence. Fil: Sina Rahme, Bechara. Centre National de la Recherche Scientifique; Francia Fil: Lestradet, Matthieu. Centre National de la Recherche Scientifique; Francia Fil: Di Venanzio, Gisela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina Fil: Ayyaz, Arshad. Centre National de la Recherche Scientifique; Francia Fil: Wennida Yamba, Miriam. Centre National de la Recherche Scientifique; Francia Fil: Lazzaro, Martina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina Fil: Liégeois, Samuel. Centre National de la Recherche Scientifique; Francia Fil: Garcia Vescovi, Eleonora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina Fil: Ferrandon, Dominique. Centre National de la Recherche Scientifique; Francia |
description |
Serratia marcescens is an opportunistic bacterium that infects a wide range of hosts including humans. It is a potent pathogen in a septic injury model of Drosophila melanogaster since a few bacteria directly injected in the body cavity kill the insect within a day. In contrast, flies do not succumb to ingested bacteria for days even though some bacteria cross the intestinal barrier into the hemolymph within hours. The mechanisms by which S. marcescens attacks enterocytes and damages the intestinal epithelium remain uncharacterized. To better understand intestinal infections, we performed a genetic screen for loss of virulence of ingested S. marcescens and identified FliR, a structural component of the flagellum, as a virulence factor. Next, we compared the virulence of two flagellum mutants fliR and flhD in two distinct S. marcescens strains. Both genes are required for S. marcescens to escape the gut lumen into the hemocoel, indicating that the flagellum plays an important role for the passage of bacteria through the intestinal barrier. Unexpectedly, fliR but not flhD is involved in S. marcescens-mediated damages of the intestinal epithelium that ultimately contribute to the demise of the host. Our results therefore suggest a flagellum-independent role for fliR in bacterial virulence. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-02 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/213723 Sina Rahme, Bechara; Lestradet, Matthieu; Di Venanzio, Gisela Andrea; Ayyaz, Arshad; Wennida Yamba, Miriam; et al.; The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model; Nature; Scientific Reports; 12; 1; 2-2022; 1-10 2045-2322 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/213723 |
identifier_str_mv |
Sina Rahme, Bechara; Lestradet, Matthieu; Di Venanzio, Gisela Andrea; Ayyaz, Arshad; Wennida Yamba, Miriam; et al.; The fliR gene contributes to the virulence of S. marcescens in a Drosophila intestinal infection model; Nature; Scientific Reports; 12; 1; 2-2022; 1-10 2045-2322 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-022-06780-w |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Nature |
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Nature |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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