Plasmodium yoelii Uses a TLR3-Dependent ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
PMID :
Titre :
Plasmodium yoelii Uses a TLR3-Dependent Pathway to Achieve Mammalian Host Parasitism
Auteur(s) :
Keswani, Tarun [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Delcroix-Genete, Delphine [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Herbert, Fabien [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Leleu, Ines [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Lambert, Claire [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Draheim, Marion [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Salome-Desnoulez, Sophie [Auteur]
Plateforme BioImaging Center Lille - PLBS [BICeL]
Saliou, Jean Michel [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Cazenave, Pierre-André [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Silvie, Olivier [Auteur]
Centre d'Immunologie et des Maladies Infectieuses [CIMI]
Roland, Jacques [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Pied, Sylviane [Auteur correspondant]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Delcroix-Genete, Delphine [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Herbert, Fabien [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Leleu, Ines [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Lambert, Claire [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Draheim, Marion [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Salome-Desnoulez, Sophie [Auteur]
Plateforme BioImaging Center Lille - PLBS [BICeL]
Saliou, Jean Michel [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Cazenave, Pierre-André [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Silvie, Olivier [Auteur]
Centre d'Immunologie et des Maladies Infectieuses [CIMI]
Roland, Jacques [Auteur]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Pied, Sylviane [Auteur correspondant]
Biome Tropical et Immuno-Pathophysiologie = Tropical Biome and ImmunoPhysiopathology [Lille] [TBIP]
Titre de la revue :
Journal of Immunology
Pagination :
3071-3082
Éditeur :
Publisher : Baltimore : Williams & Wilkins, c1950-. Latest Publisher : Bethesda, MD : American Association of Immunologists
Date de publication :
2020-12-01
ISSN :
0022-1767
Discipline(s) HAL :
Sciences du Vivant [q-bio]/Immunologie
Sciences du Vivant [q-bio]
Sciences du Vivant [q-bio]
Résumé en anglais : [en]
Malaria is associated with complicated immunopathogenesis. In this study, we provide evidence for an unexpected role of TLR3 in promoting the establishment of Plasmodium yoelii infection through delayed clearance of ...
Lire la suite >Malaria is associated with complicated immunopathogenesis. In this study, we provide evidence for an unexpected role of TLR3 in promoting the establishment of Plasmodium yoelii infection through delayed clearance of parasitemia in wild type C57BL/6jRj (B6) compared with TLR3 knockout mice. In this study, we confirmed an increased expression of Tlr3, Trif, Tbk1, and Irf7/Irf3 in the liver 42 h postinfection and the initiation of an early burst of proinflammatory response such as Ifng, NF-kB, and Tnfa in B6 mice that may promote parasite fitness. Interestingly, in the absence of TLR3, we showed the involvement of high IFN-γ and lower type I IFN response in the early clearance of parasitemia. In parallel, we observed an increase in splenic NK and NKT cells expressing TLR3 in infected B6 mice, suggesting a role for TLR sensing in the innate immune response. Finally, we find evidence that the increase in the frequency of CD19+TLR3+ B cells along with reduced levels of total IgG in B6 mice possibly suggests the initiation of TLR3-dependent pathway early during P. yoelii infection. Our results thus reveal a new mechanism in which a parasite-activated TLR3 pathway promotes blood stage infection along with quantitative and qualitative differences in Ab responses.Lire moins >
Lire la suite >Malaria is associated with complicated immunopathogenesis. In this study, we provide evidence for an unexpected role of TLR3 in promoting the establishment of Plasmodium yoelii infection through delayed clearance of parasitemia in wild type C57BL/6jRj (B6) compared with TLR3 knockout mice. In this study, we confirmed an increased expression of Tlr3, Trif, Tbk1, and Irf7/Irf3 in the liver 42 h postinfection and the initiation of an early burst of proinflammatory response such as Ifng, NF-kB, and Tnfa in B6 mice that may promote parasite fitness. Interestingly, in the absence of TLR3, we showed the involvement of high IFN-γ and lower type I IFN response in the early clearance of parasitemia. In parallel, we observed an increase in splenic NK and NKT cells expressing TLR3 in infected B6 mice, suggesting a role for TLR sensing in the innate immune response. Finally, we find evidence that the increase in the frequency of CD19+TLR3+ B cells along with reduced levels of total IgG in B6 mice possibly suggests the initiation of TLR3-dependent pathway early during P. yoelii infection. Our results thus reveal a new mechanism in which a parasite-activated TLR3 pathway promotes blood stage infection along with quantitative and qualitative differences in Ab responses.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Projet ANR :
Source :
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