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Genome-wide bioinformatic analyses predict key host and viral factors in SARS-CoV-2 pathogenesis

Abstract : Abstract The novel betacoronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused a worldwide pandemic (COVID-19) after emerging in Wuhan, China. Here we analyzed public host and viral RNA sequencing data to better understand how SARS-CoV-2 interacts with human respiratory cells. We identified genes, isoforms and transposable element families that are specifically altered in SARS-CoV-2-infected respiratory cells. Well-known immunoregulatory genes including CSF2, IL32, IL-6 and SERPINA3 were differentially expressed, while immunoregulatory transposable element families were upregulated. We predicted conserved interactions between the SARS-CoV-2 genome and human RNA-binding proteins such as the heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1) and eukaryotic initiation factor 4 (eIF4b). We also identified a viral sequence variant with a statistically significant skew associated with age of infection, that may contribute to intracellular host–pathogen interactions. These findings can help identify host mechanisms that can be targeted by prophylactics and/or therapeutics to reduce the severity of COVID-19.
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Submitted on : Thursday, May 27, 2021 - 3:27:43 PM
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Mariana G Ferrarini, Avantika Lal, Rita Rebollo, Andreas J Gruber, Andrea Guarracino, et al.. Genome-wide bioinformatic analyses predict key host and viral factors in SARS-CoV-2 pathogenesis. Communications Biology, Nature Publishing Group, 2021, 4 (1), ⟨10.1038/s42003-021-02095-0⟩. ⟨hal-03237937⟩



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