Porous nanoparticles as delivery system ...
Document type :
Article dans une revue scientifique
PMID :
Permalink :
Title :
Porous nanoparticles as delivery system of complex antigens for an effective vaccine against acute and chronic Toxoplasma gondii infection
Author(s) :
Dimier-Poisson, Isabelle [Auteur]
Carpentier, Rodolphe [Auteur]
Lille Inflammation Research International Center - U 995 [LIRIC]
Lille Inflammation Research International Center - U 995 [LIRIC]
Thi Thanh Loi, N''guyen [Auteur]
Dahmani, Fatima [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Ducournau, Celine [Auteur]
Betbeder, Didier [Auteur]
Lille Inflammation Research International Center - U 995 [LIRIC]
Carpentier, Rodolphe [Auteur]

Lille Inflammation Research International Center - U 995 [LIRIC]
Lille Inflammation Research International Center - U 995 [LIRIC]
Thi Thanh Loi, N''guyen [Auteur]
Dahmani, Fatima [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Ducournau, Celine [Auteur]
Betbeder, Didier [Auteur]

Lille Inflammation Research International Center - U 995 [LIRIC]
Journal title :
Biomaterials
Abbreviated title :
Biomaterials
Volume number :
50
Pages :
164-175
Publication date :
2015-05-01
English keyword(s) :
Immunotherapy
Vaccine
Nasal immunization
Toxoplasma gondii
Nanoparticles
Vaccine
Nasal immunization
Toxoplasma gondii
Nanoparticles
HAL domain(s) :
Sciences du Vivant [q-bio]
English abstract : [en]
Development of sub-unit mucosal vaccines requires the use of specific delivery systems or immune-modulators such as adjuvants to improve antigen immunogenicity. Nasal route for vaccine delivery by nanoparticles has attracted ...
Show more >Development of sub-unit mucosal vaccines requires the use of specific delivery systems or immune-modulators such as adjuvants to improve antigen immunogenicity. Nasal route for vaccine delivery by nanoparticles has attracted much interest but mechanisms triggering effective mucosal and systemic immune response are still poorly understood. Here we study the loading of porous nanoparticles (DGNP) with a total extract of Toxoplasma gondii antigens (TE), the delivery of TE by DGNP into airway epithelial, macrophage and dendritic cells, and the subsequent cellular activation. In vitro, DGNP are able to load complex antigens in a stable and quantitative manner. The outstanding amount of antigen association by DGNP is used to deliver TE in airway mucosa cells to induce a cellular maturation with an increased secretion of pro-inflammatory cytokines. Evaluation of nasal vaccine efficiency is performed in vivo on acute and chronic toxoplasmosis mouse models. A specific Th1/Th17 response is observed in vivo after vaccination with DGNP/TE. This is associated with high protection against toxoplasmosis regarding survival and parasite burden, correlated with an increased delivery of antigens by DGNP in airway mucosa cells. This study provides evidence of the potential of DGNP for the development of new vaccines against a range of pathogens.Show less >
Show more >Development of sub-unit mucosal vaccines requires the use of specific delivery systems or immune-modulators such as adjuvants to improve antigen immunogenicity. Nasal route for vaccine delivery by nanoparticles has attracted much interest but mechanisms triggering effective mucosal and systemic immune response are still poorly understood. Here we study the loading of porous nanoparticles (DGNP) with a total extract of Toxoplasma gondii antigens (TE), the delivery of TE by DGNP into airway epithelial, macrophage and dendritic cells, and the subsequent cellular activation. In vitro, DGNP are able to load complex antigens in a stable and quantitative manner. The outstanding amount of antigen association by DGNP is used to deliver TE in airway mucosa cells to induce a cellular maturation with an increased secretion of pro-inflammatory cytokines. Evaluation of nasal vaccine efficiency is performed in vivo on acute and chronic toxoplasmosis mouse models. A specific Th1/Th17 response is observed in vivo after vaccination with DGNP/TE. This is associated with high protection against toxoplasmosis regarding survival and parasite burden, correlated with an increased delivery of antigens by DGNP in airway mucosa cells. This study provides evidence of the potential of DGNP for the development of new vaccines against a range of pathogens.Show less >
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
CHU Lille
Inserm
Université de Lille
Inserm
Université de Lille
Research team(s) :
Therapeutic innovation targetting inflammation
Submission date :
2019-05-17T13:14:34Z
2021-06-02T09:40:52Z
2021-06-02T09:40:52Z