Infant antibody and B-cell responses following confirmed pediatric GII.17 norovirus infections functionally distinguish GII.17 genetic clusters.
GII.17
blockade antibody
children
human monoclonal antibodies
memory B cells
norovirus
variants of concern
Journal
Frontiers in immunology
ISSN: 1664-3224
Titre abrégé: Front Immunol
Pays: Switzerland
ID NLM: 101560960
Informations de publication
Date de publication:
2023
2023
Historique:
received:
26
05
2023
accepted:
25
07
2023
medline:
5
9
2023
pubmed:
4
9
2023
entrez:
4
9
2023
Statut:
epublish
Résumé
Genogroup II (GII) noroviruses are a major cause of diarrheal disease burden in children in both high- and low-income countries. GII.17 noroviruses are composed of distinct genetic clusters (I, II, IIIa, and IIIb) and have shown potential for replacing historically more prevalent GII.4 strains, but the serological basis for GII.17 antigenic diversity has not been studied in children. Utilizing samples from a birth cohort, we investigated antibody and B-cell responses to GII.17 cluster variants in confirmed GII.17 infections in young children as well as demonstrated that the distinct genetic clusters co-circulate. Polyclonal serum antibodies bound multiple clusters but showed cluster-specific blockade activity in a surrogate virus neutralization assay. Antibodies secreted by immortalized memory B cells (MBCs) from an infant GII.17 case were highly specific to GII.17 and exhibited blockade activity against this genotype. We isolated an MBC-derived GII.17-specific Immunoglobulin A (IgA) monoclonal antibody called NVA.1 that potently and selectively blocked GII.17 cluster IIIb and recognized an epitope targeted in serum from cluster IIIb-infected children. These data indicate that multiple antigenically distinct GII.17 variants co-circulate in young children, suggesting retention of cluster diversity alongside potential for immune escape given the existence of antibody-defined cluster-specific epitopes elicited during infection.
Identifiants
pubmed: 37662930
doi: 10.3389/fimmu.2023.1229724
pmc: PMC10471973
doi:
Substances chimiques
Antibodies, Monoclonal
0
Immunoglobulin A
0
Paraproteins
0
Epitopes
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
1229724Subventions
Organisme : NIAID NIH HHS
ID : K24 AI141744
Pays : United States
Organisme : NIAID NIH HHS
ID : R01 AI148260
Pays : United States
Organisme : NIGMS NIH HHS
ID : P30 GM118228
Pays : United States
Organisme : FIC NIH HHS
ID : D43 TW010923
Pays : United States
Organisme : NIH HHS
ID : S10 OD018175
Pays : United States
Organisme : NIAID NIH HHS
ID : R21 AI152039
Pays : United States
Organisme : NIAID NIH HHS
ID : R01 AI127845
Pays : United States
Informations de copyright
Copyright © 2023 Strother, Brewer-Jensen, Becker-Dreps, Zepeda, May, Gonzalez, Reyes, McElvany, Averill, Mallory, Montmayeur, Costantini, Vinjé, Baric, Bucardo, Lindesmith and Diehl.
Déclaration de conflit d'intérêts
LCL and RSB hold patents on norovirus vaccine design and ongoing collaborations with Vaxart, Takeda Vaccines, HilleVax, and BioNTech. RSB is a member of the advisory committee for Vaxart and Invivyd. SB-D and SAD received investigator-initiated research awards, respectively. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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