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Nucleic acid biomarkers of immune response and cell and tissue damage in children with COVID-19 and MIS-C [wb RNA]

ABSTRACT: Nucleic acid biomarkers of immune response and cell and tissue damage in children with COVID-19 and MIS-C [wb RNA]

PROVIDER: PRJNA934454 | ENA |

REPOSITORIES: ENA

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Nucleic acid biomarkers of immune response and cell and tissue damage in children with COVID-19 and MIS-C [wb RNA]

Project description:Differential host responses in coronavirus disease 2019 (COVID-19) and multisystem inflammatory syndrome in children (MIS-C) remain poorly characterized. Here we use next-generation sequencing to longitudinally analyze blood samples from pediatric patients with acute COVID-19 (n=70) or MIS-C (n=141) across three hospitals. Profiling of plasma cell-free nucleic acids uncovers distinct signatures of cell injury and death between COVID-19 and MIS-C, with increased multi-organ involvement in MIS-C encompassing diverse cell types including endothelial and neuronal cells, and an enrichment of pyroptosis related genes. Whole blood RNA profiling reveals upregulation of similar pro-inflammatory pathways in COVID-19 and MIS-C, but also MIS-C specific downregulation of T cell-associated pathways. Profiling of plasma cell-free RNA and whole blood RNA in paired samples yields different yet complementary signatures for each disease state. Our work provides a systems-level view of immune responses and tissue damage in COVID-19 and MIS-C and informs the future development of new disease biomarkers.

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Project description:This SuperSeries is composed of the SubSeries listed below.

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Project description:Differential host responses in coronavirus disease 2019 (COVID-19) and multisystem inflammatory syndrome in children (MIS-C) remain poorly characterized. Here, we use next-generation sequencing to longitudinally analyze blood samples from pediatric patients with COVID-19 or MIS-C across three hospitals. Profiling of plasma cell-free nucleic acids uncovers distinct signatures of cell injury and death between COVID-19 and MIS-C, with increased multiorgan involvement in MIS-C encompassing diverse cell types, including endothelial and neuronal cells, and an enrichment of pyroptosis-related genes. Whole-blood RNA profiling reveals upregulation of similar pro-inflammatory pathways in COVID-19 and MIS-C but also MIS-C-specific downregulation of T cell-associated pathways. Profiling of plasma cell-free RNA and whole-blood RNA in paired samples yields different but complementary signatures for each disease state. Our work provides a systems-level view of immune responses and tissue damage in COVID-19 and MIS-C and informs future development of new disease biomarkers.

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