1. Pathophysiological pathway differences in children who present with COVID-19 ARDS compared to COVID -19 induced MIS-C.
- Author
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McCafferty C, Cai T, Borgel D, Lasne D, Renolleau S, Vedrenne-Cloquet M, Bonnet D, Wu J, Zaw T, Bhatnagar A, Song X, Van Den Helm S, Letunica N, Attard C, Karlaftis V, Praporski S, Ignjatovic V, and Monagle P
- Subjects
- Complement System Proteins, Humans, Proteomics methods, Systemic Inflammatory Response Syndrome, COVID-19 complications, Respiratory Distress Syndrome
- Abstract
COVID-19 has infected more than 275 million worldwide (at the beginning of 2022). Children appear less susceptible to COVID-19 and present with milder symptoms. Cases of children with COVID-19 developing clinical features of Kawasaki-disease have been described. Here we utilise Mass Spectrometry proteomics to determine the plasma proteins expressed in healthy children pre-pandemic, children with multisystem inflammatory syndrome (MIS-C) and children with COVID-19 induced ARDS. Pathway analyses were performed to determine the affected pathways. 76 proteins are differentially expressed across the groups, with 85 and 52 proteins specific to MIS-C and COVID-19 ARDS, respectively. Complement and coagulation activation are implicated in these clinical phenotypes, however there was significant contribution of FcGR and BCR activation in MIS-C and scavenging of haem and retinoid metabolism in COVID-19 ARDS. We show global proteomic differences in MIS-C and COVID-ARDS, although both show complement and coagulation dysregulation. The results contribute to our understanding of MIS-C and COVID-19 ARDS in children., (© 2022. The Author(s).)
- Published
- 2022
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