Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is associated with increased levels of autoantibodies targeting immunological proteins such as cytokines and chemokines. Reports further indicate that COVID-19 patients may develop a broad spectrum of autoimmune diseases due to reasons not fully understood. Even so, the landscape of autoantibodies induced by SARS-CoV-2 infection remains uncharted territory. To gain more insight, we carried out a comprehensive assessment of autoantibodies known to be linked to diverse autoimmune diseases observed in COVID-19 patients in a cohort of 231 individuals, of which 161 were COVID-19 patients (72 with mild, 61 moderate, and 28 with severe disease) and 70 were healthy controls. Dysregulated IgG and IgA autoantibody signatures, characterized mainly by elevated concentrations, occurred predominantly in patients with moderate or severe COVID-19 infection. Autoantibody levels often accompanied anti-SARS-CoV-2 antibody concentrations while stratifying COVID-19 severity as indicated by random forest and principal component analyses. Furthermore, while young versus elderly COVID-19 patients showed only slight differences in autoantibody levels, elderly patients with severe disease presented higher IgG autoantibody concentrations than young individuals with severe COVID-19. This work maps the intersection of COVID-19 and autoimmunity by demonstrating the dysregulation of multiple autoantibodies triggered during SARS-CoV-2 infection. Thus, this cross-sectional study suggests that SARS-CoV-2 infection induces autoantibody signatures associated with COVID-19 severity and several autoantibodies that can be used as biomarkers of COVID-19 severity, indicating autoantibodies as potential therapeutical targets for these patients.
| Original language | English |
|---|---|
| Article number | e28538 |
| Journal | Journal of Medical Virology |
| Volume | 95 |
| Issue number | 2 |
| Pages (from-to) | e28538 |
| ISSN | 0146-6615 |
| DOIs | |
| Publication status | Published - 02.2023 |
Funding
We acknowledge the patients for participating in this study. We would like to recognize the contributions of Lev Rochel Bikur Cholim of Lakewood (led by Rabbi Yehuda Kasirer and Mrs. Leeba Prager) and the hundreds of volunteers who collected samples for this research through the MITZVA Cohort. We thank Immunosciences and Cyrex Laboratories for financial support and INOVA Diagnostics for providing their diagnostic ELISA kits for autoimmunity at a significantly discounted rate. Furthermore, we would like to thank Vilma Samayoa, David Cisneros, Roberto Melgar, Dana A. Hill, and Amanda Thornton for their technical assistance. We also thank the São Paulo Research Foundation (FAPESP grants: 2020/07972‐1 to GCB; 2020/09146‐1 to PPF; 2020/11710‐2 to DRP, 2020/16246‐2 to DLMF, 2018/18886‐9, 2020/01688‐0, and 2020/07069‐0 to OCM), and the Coordination for the Improvement of Higher Education Personnel (CAPES) Financial Code 001 (grant to ISF) for financial support. We acknowledge the patients for participating in this study. We would like to recognize the contributions of Lev Rochel Bikur Cholim of Lakewood (led by Rabbi Yehuda Kasirer and Mrs. Leeba Prager) and the hundreds of volunteers who collected samples for this research through the MITZVA Cohort. We thank Immunosciences and Cyrex Laboratories for financial support and INOVA Diagnostics for providing their diagnostic ELISA kits for autoimmunity at a significantly discounted rate. Furthermore, we would like to thank Vilma Samayoa, David Cisneros, Roberto Melgar, Dana A. Hill, and Amanda Thornton for their technical assistance. We also thank the São Paulo Research Foundation (FAPESP grants: 2020/07972-1 to GCB; 2020/09146-1 to PPF; 2020/11710-2 to DRP, 2020/16246-2 to DLMF, 2018/18886-9, 2020/01688-0, and 2020/07069-0 to OCM), and the Coordination for the Improvement of Higher Education Personnel (CAPES) Financial Code 001 (grant to ISF) for financial support.
Research Areas and Centers
- Academic Focus: Center for Infection and Inflammation Research (ZIEL)
DFG Research Classification Scheme
- 2.21-05 Immunology
Coronavirus related work
- Research on SARS-CoV-2 / COVID-19