Alcaligenes Lipid A Functions as a Superior Mucosal Adjuvant to Monophosphoryl Lipid A via the Recruitment and Activation of CD11b+ Dendritic Cells in Nasal Tissue.
Alcaligenes
MPLA
chemokines
lipid A
nasal vaccine
stromal cells
Journal
International immunology
ISSN: 1460-2377
Titre abrégé: Int Immunol
Pays: England
ID NLM: 8916182
Informations de publication
Date de publication:
25 Nov 2023
25 Nov 2023
Historique:
received:
18
06
2023
medline:
26
11
2023
pubmed:
26
11
2023
entrez:
25
11
2023
Statut:
aheadofprint
Résumé
We previously demonstrated that Alcaligenes-derived lipid A (ALA), which is produced from an intestinal lymphoid tissue-resident commensal bacterium, is an effective adjuvant for inducing antigen-specific immune responses. To understand the immunologic characteristics of ALA as a vaccine adjuvant, we here compared the adjuvant activity of ALA with that of a licensed adjuvant (monophosphoryl lipid A, MPLA) in mice. Although the adjuvant activity of ALA was only slightly greater than that of MPLA for subcutaneous immunization, ALA induced significantly greater IgA antibody production than MPLA during nasal immunization. Regarding the underlying mechanism, ALA increased and activated CD11b+ CD103- CD11c+ dendritic cells in the nasal tissue by stimulating chemokine responses. These findings revealed the superiority of ALA as a mucosal adjuvant due to the unique immunologic functions of ALA in nasal tissue.
Identifiants
pubmed: 38006376
pii: 7451066
doi: 10.1093/intimm/dxad045
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© The Author(s) 2023. Published by Oxford University Press on behalf of The Japanese Society for Immunology.