Polymorphism in IFNAR contributes to glucocorticoid response and outcome in ARDS and COVID-19
Jalkanen, J.; Khan, S.; Elima, K.; Huttunen, T.; Wang, N.; Hollmen, M.; Elo, L.; Jalkanen, S.
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The use of glucocorticoids has given contradictory results for treating acute respiratory distress syndrome (ARDS). Here we report a novel disease association of a SNP rs9984273, which is situated in the interferon alpha/beta receptor (IFNAR2) gene in an area corresponding to a binding motif of the glucocorticoid receptor (GR). The minor allele of SNP rs9984273 associates with higher IFNAR expression, lower IFN-gamma and IL-6 levels and less severe form of coronavirus diseases (COVID-19) according to the COVID-19 Host Genetics Initiative database, and better outcome in interferon (IFN) beta treated patients with ARDS. Thus, the distribution of this SNP within clinical study arms may explain the contradictory results of multiple ARDS studies and outcomes in COVID-19 concerning type I IFN signalling and glucocorticoids. One-Sentence SummarySingle nucleotide polymorphism in interferon receptor contributes to corticosteroid response and outcome in ARDS and COVID-19
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