| Autor: |
Trabattoni, Claudia Vanetti, Vito Lampasona, Marta Stracuzzi, Claudio Fenizia, Mara Biasin, Irma Saulle, Fiona Limanaqi, Ahmed Abdelsalam, Cristian Loretelli, Laura Paradiso, Emma Longoni, Lucia Barcellini, Lorenzo Piemonti, Ilaria Marzinotto, Stefania Dispinseri, Antonella Amendola, Clara Fappani, Elisabetta Tanzi, Mario Salvatore Clerici, Gabriella Scarlatti, Gian Vincenzo Zuccotti, Vania Giacomet, Daria |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
International Journal of Molecular Sciences; Volume 24; Issue 7; Pages: 6779 |
| ISSN: |
1422-0067 |
| DOI: |
10.3390/ijms24076779 |
| Popis: |
Coronavirus disease 19 (COVID-19) is clinically less severe in children, even if the wide variety and degree of severity of symptoms reported in children pose a still-unresolved challenge for clinicians. We performed an in-depth analysis of the immunological profiles of 18 hospitalized SARS-CoV-2-infected children, whose results were compared to those obtained from 13 age- and sex-matched healthy controls (HC). The patients were categorized as paucisymptomatic/moderate (55.6%) or severe/critical (44.5%) according to established diagnostic criteria and further stratified into the categories of infants (1–12 months), children (1–12 years), and adolescents (>12 years). We assessed SARS-CoV-2-specific RBD antibodies (Ab), neutralizing antibodies (nAb), and circulating cytokines/chemokines in the plasma, and the SARS-CoV-2-specific immune response was measured in PBMCs by gene expression and secretome analyses. Our results showed peculiar circulating cytokine/chemokine profiles among patients sharing a similar clinical phenotype. A cluster of patients consisting of infants with severe symptoms presented hyperinflammatory profiles, together with extremely polarized antibody profiles. In a second cluster consisting of paucisymptomatic patients, a less pronounced increase in the level of inflammatory cytokines, together with an association between the selected cytokines and humoral responses, was observed. A third cluster, again consisting of paucisymptomatic patients, showed a circulating cytokine/chemokine profile which overlapped with that of the HC. The SARS-CoV-2-stimulated production of pro-inflammatory proteins, T lymphocyte activation, and migration-specific proteins, were significantly increased in SARS-CoV-2-infected children compared to the HC. Our findings suggest that immune response activation in the course of SARS-CoV-2 infection in children is directly correlated with clinical severity and, to a lesser extent, age. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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