IL-2 and IFN-γ are biomarkers of SARS-CoV-2 specific cellular response in whole blood stimulation assays

التفاصيل البيبلوغرافية
العنوان: IL-2 and IFN-γ are biomarkers of SARS-CoV-2 specific cellular response in whole blood stimulation assays
المؤلفون: Inês P. D. Costa, Maria Lucilia Araujo, Nuno Santarém, Maria Isabel Antunes, Ricardo Ribeiro, Sofia Esteves, Vítor Pinheiro, Ricardo Monteiro, Ana Rafaela Teixeira, Alexandre Afonso, Teresa Reis, Begoña Pérez-Cabezas, Anabela Cordeiro-da-Silva, Joana Tavares, Joao Niza Ribeiro
بيانات النشر: Cold Spring Harbor Laboratory, 2021.
سنة النشر: 2021
مصطلحات موضوعية: chemistry.chemical_classification, Stimulation, Peptide, Human leukocyte antigen, Biology, Nucleoprotein, Vaccination, medicine.anatomical_structure, Immune system, chemistry, Immunology, medicine, Multiplex, B cell
الوصف: A proper description of the immune response to SARS-CoV-2 will be critical for the assessment of protection elicited after both infection and vaccination. Uncoupled T and B cell responses have been described in acute and convalescent patients and exposed individuals. We assessed the potential usefulness of whole blood stimulation assays to identify functional cellular immune responses to SARS-CoV-2. Blood from COVID-19 recovered individuals (5 months after infection) and negative subjects was stimulated for 24 hours with HLA predicted peptide “megapools” of the Spike and Nucleoprotein, or the mixture of them. After stimulation, cytokines were quantified using a beads-based multiplex assay. Interleukin-2 and IFN-γ were found to be specific biomarkers of SARS-CoV-2 cellular response. Using the Spike and Nucleoprotein mixture, 91.3% of COVID-19 recovered individuals presented an IL-2 stimulation index over the cut-off, while 82.6% showed IFN-γ. All the negative individuals presented an IL-2 response under the cut-off, while 5.3% of these subjects presented positive IFN-γ stimulation indexes. Moreover, IL-2 production correlated with IgG levels for Spike 1, RBD, and Nucleocapsid. In conclusion, we demonstrate the potential of whole blood stimulation assays and the quantification of IL-2 and IFN-γ for the analysis of SARS-CoV-2 functional cellular responses.
DOI: 10.1101/2021.01.04.20248897
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::8260cfe96a42a1cf48d9c01fab46656a
https://doi.org/10.1101/2021.01.04.20248897
Rights: OPEN
رقم الانضمام: edsair.doi...........8260cfe96a42a1cf48d9c01fab46656a
قاعدة البيانات: OpenAIRE
الوصف
DOI:10.1101/2021.01.04.20248897