Antibody and T Cell Immune Responses to SARS-CoV-2 Peptides in COVID-19 Convalescent Patients

Autor: Ekaterina Garanina, Shaimaa Hamza, Robert J. Stott-Marshall, Ekaterina Martynova, Maria Markelova, Yuriy Davidyuk, Venera Shakirova, Neha Kaushal, Manoj Baranwal, Ilsiyar M. Khaertynova, Albert Rizvanov, Toshana L. Foster, Svetlana Khaiboullina
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Frontiers in Microbiology, Vol 13 (2022)
Druh dokumentu: article
ISSN: 1664-302X
DOI: 10.3389/fmicb.2022.842232
Popis: Identifying immunogenic targets of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is critical to advance diagnostic and disease control strategies. We analyzed humoral (ELISA) and T-cell (ELISpot) immune responses to spike (S) and nucleocapsid (N) SARS-CoV-2 proteins as well as to human endemic coronavirus (eCoV) peptides in serum from convalescent coronavirus disease 2019 (COVID-19) patients from Tatarstan, Russia. We identified multiple SARS-CoV-2 peptides that were reactive with serum antibodies and T cells from convalescent COVID-19. In addition, age and gender associated differences in the reactivity to S and N protein peptides were identified. Moreover, several SARS-CoV-2 peptides tested negatively correlated with disease severity and lung damage. Cross-reactivity to eCoV peptides was analyzed and found to be lower in COVID-19 compared to controls. In this study, we demonstrate the changing pattern of immunogenic peptide reactivity in COVID-19 serum based on age, gender and previous exposure to eCoVs. These data highlight how humoral immune responses and cytotoxic T cell responses to some of these peptides could contribute to SARS-CoV-2 pathogenesis.
Databáze: Directory of Open Access Journals