coronavirus
Conditions
Interventions
None listed
Sponsors
Prof. Dr. L.G. Visser
Eligibility
Inclusion criteria
Inclusion criteria: - Hospitalized patient with PCR confirmed COVID-19 infection - Eighteen years or older
Exclusion criteria
Exclusion criteria: - Not able to give consent by representative of the subject
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Biomarker profiles or signature which correlate with future clinical progression of patients infected with SARS-CoV-2 to multi-organ failure and acute severe lung injury requiring mechanical ventilation. | — |
Secondary
| Measure | Time frame |
|---|---|
| The kinetics of: - Circulating soluble serum biomarkers of innate, adaptive and inflammatory immune responses, in order to decipher and validate biomarker signatures of disease severity and risk of acute disease progression. - Circulating cellular immune responses, focusing on the distribution of various immune subsets (granulocytes, lymphocytes, monocytic and innate populations) and the innate responses to bacterial or viral motifs (LPS, CpG and PolyIC) and polyclonal and/or specific adaptive immune responses (PHA and SARS-CoV-2). - Circulating cellular immune responses, focusing on the distribution and quantitation of >250 leukocyte subsets, including 20-25 different innate myeloid cells (granulocyte, monocyte, and dendritic cell subsets, etc.), >85 CD4 T-cell subsets, >45 CD8-NK cell subsets, and >115 B-cell & plasma cell subsets. Special attention will be given to the B-cell system, particularly to minor clonal subsets and the kinetics of expanded plasma cell subsets, down to levels of 0.1 cell per µL. - Nasal and lung (using cells from lung aspirates) cellular immune responses, focusing on the distribution of various immune subsets (granulocytes, lymphocytes, monocytic and innate populations) and their activation status based on surface markers by mass cytometry (>40 marker panel). Nasal metabolomics. - Antibody glycosylation: Total IgG Fc glycosylation and SARS-CoV-19 specific IgG Fc glycosylation profiles (Fc glycosylation as general biomarker of immune activation, SARS-CoV-19 specific IgG Fc glycosylation as co-marker for development of immunity, see parameter “SARS-CoV2 specific serology - Serum glycan profile, anti-glycan IgG/IgM profiles - RNA expression profiles in whole blood to allow for pathway analysis and characterize different inflammatory responses. Particularly sepsis response phenotypes (e.g. glucosteroid receptor signaling pathway, T cell exhaustion) for the ICU patients. - Viral load, focusing on measured cycle-threshold (Ct) value kinetics | — |
Contacts
Public ContactAnna Roukens
Leiden University Medical Center
Outcome results
None listed