SARS-CoV-2 infection induces robust mucosal antibody responses in the upper respiratory tract

© 2024 The Author(s)..

Despite multiple research efforts to characterize coronavirus disease 2019 (COVID-19) in humans, there is no clear data on the specific role of mucosal immunity on COVID-19 disease. Here, we longitudinally profile the antibody response against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and seasonal HCoV-OC43 S proteins in serum and nasopharyngeal swabs from COVID-19 patients. Results showed that specific antibody responses against SARS-CoV-2 and HCoV-OC43 S proteins can be detected in the upper respiratory tract. We found that COVID-19 patients mounted a robust mucosal antibody response against SARS-CoV-2 S with specific secretory immunoglobulin A (sIgA), IgA, IgG, and IgM antibody subtypes detected in the nasal swabs. Additionally, COVID-19 patients showed IgG, IgA, and sIgA responses against HCoV-OC43 S in the local mucosa, whereas no specific IgM was detected. Interestingly, mucosal antibody titers against SARS-CoV-2 peaked at day 7, whereas HCoV-OC43 titers peaked earlier at day 3 post-recruitment, suggesting an immune memory recall to conserved epitopes of beta-HCoVs in the upper respiratory tract.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:27

Enthalten in:

iScience - 27(2024), 3 vom: 15. März, Seite 109210

Sprache:

Englisch

Beteiligte Personen:

Escalera, Alba [VerfasserIn]
Rojo-Fernandez, Amaya [VerfasserIn]
Rombauts, Alexander [VerfasserIn]
Abelenda-Alonso, Gabriela [VerfasserIn]
Carratalà, Jordi [VerfasserIn]
García-Sastre, Adolfo [VerfasserIn]
Aydillo, Teresa [VerfasserIn]

Links:

Volltext

Themen:

Immunology
Journal Article

Anmerkungen:

Date Revised 09.03.2024

published: Electronic-eCollection

Citation Status PubMed-not-MEDLINE

doi:

10.1016/j.isci.2024.109210

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36923782X