Delivery of antigen to nasal-associated lymphoid tissue microfold cells through secretory IgA targeting local dendritic cells confers protective immunity.

Details

Serval ID
serval:BIB_872D2286E800
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Delivery of antigen to nasal-associated lymphoid tissue microfold cells through secretory IgA targeting local dendritic cells confers protective immunity.
Journal
Journal of Allergy and Clinical Immunology
Author(s)
Rochereau N., Pavot V., Verrier B., Jospin F., Ensinas A., Genin C., Corthésy B., Paul S.
ISSN
1097-6825 (Electronic)
ISSN-L
0091-6749
Publication state
Published
Issued date
2016
Peer-reviewed
Oui
Volume
137
Number
1
Pages
214-222.e2
Language
english
Notes
Publication types: Journal ArticlePublication Status: ppublish
Abstract
BACKGROUND: Transmission of mucosal pathogens relies on their ability to bind to the surfaces of epithelial cells, to cross this thin barrier, and to gain access to target cells and tissues, leading to systemic infection. This implies that pathogen-specific immunity at mucosal sites is critical for the control of infectious agents using these routes to enter the body. Although mucosal delivery would ensure the best onset of protective immunity, most of the candidate vaccines are administered through the parenteral route.
OBJECTIVE: The present study evaluates the feasibility of delivering the chemically bound p24gag (referred to as p24 in the text) HIV antigen through secretory IgA (SIgA) in nasal mucosae in mice.
RESULTS: We show that SIgA interacts specifically with mucosal microfold cells present in the nasal-associated lymphoid tissue. p24-SIgA complexes are quickly taken up in the nasal cavity and selectively engulfed by mucosal dendritic cell-specific intercellular adhesion molecule 3-grabbing nonintegrin-positive dendritic cells. Nasal immunization with p24-SIgA elicits both a strong humoral and cellular immune response against p24 at the systemic and mucosal levels. This ensures effective protection against intranasal challenge with recombinant vaccinia virus encoding p24.
CONCLUSION: This study represents the first example that underscores the remarkable potential of SIgA to serve as a carrier for a protein antigen in a mucosal vaccine approach targeting the nasal environment.
Pubmed
Web of science
Create date
02/02/2016 17:19
Last modification date
20/08/2019 14:46
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