Projects per year
Abstract
SARS-CoV-2 causes a spectrum of COVID-19 disease, the immunological basis of which remains ill defined. We analyzed 85 SARS-CoV-2-infected individuals at acute and/or convalescent time points, up to 102 days after symptom onset, quantifying 184 immunological parameters. Acute COVID-19 presented with high levels of IL-6, IL-18, and IL-10 and broad activation marked by the upregulation of CD38 on innate and adaptive lymphocytes and myeloid cells. Importantly, activated CXCR3+cTFH1 cells in acute COVID-19 significantly correlate with and predict antibody levels and their avidity at convalescence as well as acute neutralization activity. Strikingly, intensive care unit (ICU) patients with severe COVID-19 display higher levels of soluble IL-6, IL-6R, and IL-18, and hyperactivation of innate, adaptive, and myeloid compartments than patients with moderate disease. Our analyses provide a comprehensive map of longitudinal immunological responses in COVID-19 patients and integrate key cellular pathways of complex immune networks underpinning severe COVID-19, providing important insights into potential biomarkers and immunotherapies. Koutsakos et al. perform a broad analysis of 184 immune features using blood samples from 85 COVID-19 cases across time and severity groups. The study defines circulating TFH1 cells as a correlate of antibody responses and sIL-6R, IL-6, and IL-18 as correlates of disease severity.
Original language | English |
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Article number | 100208 |
Number of pages | 22 |
Journal | Cell Reports Medicine |
Volume | 2 |
Issue number | 3 |
DOIs | |
Publication status | Published - 16 Mar 2021 |
Keywords
- acute COVID-19
- antibody-secreting cells
- CD38
- convalescent COVID-19
- HLA-DR
- IL-18
- IL-6
- SARS-CoV-2
- soluble IL-6 receptor
- T follicular helper cells
Projects
- 2 Finished
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Limiting the impact of influenza
Turner, S., La Gruta, N., Chen, W., Kedzierska, K., Jackson, D., Brown, L. E. & Doherty, P. C.
1/01/15 → 31/12/19
Project: Research
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ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
Davis, T., Boyd, B., Bunnett, N., Porter, C., Caruso, F., Kent, S., Thordarson, P., Kearnes, M., Gooding, J., Kavallaris, M., Thurecht, K., Whittaker, A. K., Parton, R., Corrie, S. R., Johnston, A., McGhee, J., Greguric, I. D., Stevens, M. M., Lewis, J. S., Lee, D. S., Alexander, C., Dawson, K., Hawker, C., Haddleton, D., Thierry, B., Prestidge, C. A., Meyer, A., Jones-Jayasinghe, N., Voelcker, N., Nann, T. & McLean, K.
Australian Research Council (ARC), Monash University, University of Melbourne, University of New South Wales (UNSW), University of Queensland , University of South Australia, Monash University – Internal Faculty Contribution, University of Wisconsin Madison, Memorial Sloan Kettering Cancer Center, University of California System, University College Dublin, Imperial College London, University of Warwick, SungKyunKwan University, Australian Nuclear Science and Technology Organisation (ANSTO) , University of Nottingham
30/06/14 → 29/06/21
Project: Research