Publication
Title
Endemic human coronavirus-specific nasal immunoglobulin A and serum immunoglobulin G dynamics in lower respiratory tract infections
Author
Abstract
Endemic human coronaviruses (HCoV) NL63, 229E, OC43, and HKU1 cause respiratory infection. Following infection, a virus-specific serum antibody rise is usually observed, coinciding with recovery. In some cases, an infection is not accompanied by an immunoglobulin G (IgG) antibody rise in serum in the first month after HCoV infection, even though the infection has cleared in that month and the patient has recovered. We investigated the possible role of nasal immunoglobulin A (IgA). We measured spike (S) and nucleocapsid (N)-specific nasal IgA during and after an HCoV lower respiratory tract infection (LRTI) and compared the IgA responses between subjects with and without a significant IgG rise in serum (IgG responders (n = 31) and IgG non-responders (n = 14)). We found that most IgG responders also exhibited significant nasal IgA rise in the first month after the infection, whereas such an IgA rise was lacking in most IgG non-responders. Interestingly, the serum IgG non-responders presented with a significantly higher nasal IgA when they entered this study than during the acute phase of the LRTI. Our data suggest that nasal IgA could be part of a fast acute response to endemic HCoV infection and may play a role in clearing the infection.
Language
English
Source (journal)
Vaccines
Publication
2024
ISSN
2076-393X
DOI
10.3390/VACCINES12010090
Volume/pages
12 :1 (2024) , p. 1-9
Article Reference
90
ISI
001150974000001
Pubmed ID
38250903
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Genomics to Combat Resistance against Antibiotics in Community-acquired LRTI in Europe. (GRACE)
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 04.03.2024
Last edited 07.03.2024
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