Author: Alimova, Maria; Sidhom, Eriene-Heidi; Satyam, Abhigyan; Dvela-Levitt, Moran; Melanson, Michelle; Chamberlain, Brian T.; Alper, Seth L.; Santos, Jean; Gutierrez, Juan; Subramanian, Ayshwarya; Grinkevich, Elizabeth; Bricio, Estefania Reyes; Kim, Choah; Clark, Abbe; Watts, Andrew; Thompson, Rebecca; Marshall, Jamie; Pablo, Juan Lorenzo; Coraor, Juliana; Roignot, Julie; Vernon, Katherine A.; Keller, Keith; Campbell, Alissa; Emani, Maheswarareddy; Racette, Matthew; Bazua-Valenti, Silvana; Padovano, Valeria; Weins, Astrid; McAdoo, Stephen P.; Tam, Frederick W.K.; Ronco, Lucienne; Wagner, Florence; Tsokos, George C.; Shaw, Jillian L.; Greka, Anna
Title: A High Content Screen for Mucin-1-Reducing Compounds Identifies Fostamatinib as a Candidate for Rapid Repurposing for Acute Lung Injury during the COVID-19 pandemic Cord-id: phrzt1rs Document date: 2020_6_30
ID: phrzt1rs
Snippet: Drug repurposing is the only method capable of delivering treatments on the shortened time-scale required for patients afflicted with lung disease arising from SARS-CoV-2 infection. Mucin-1 (MUC1), a membrane-bound molecule expressed on the apical surfaces of most mucosal epithelial cells, is a biochemical marker whose elevated levels predict the development of acute lung injury (ALI) and respiratory distress syndrome (ARDS), and correlate with poor clinical outcomes. In response to the pandemic
Document: Drug repurposing is the only method capable of delivering treatments on the shortened time-scale required for patients afflicted with lung disease arising from SARS-CoV-2 infection. Mucin-1 (MUC1), a membrane-bound molecule expressed on the apical surfaces of most mucosal epithelial cells, is a biochemical marker whose elevated levels predict the development of acute lung injury (ALI) and respiratory distress syndrome (ARDS), and correlate with poor clinical outcomes. In response to the pandemic spread of SARS-CoV-2, we took advantage of a high content screen of 3,713 compounds at different stages of clinical development to identify FDA-approved compounds that reduce MUC1 protein abundance. Our screen identified Fostamatinib (R788), an inhibitor of spleen tyrosine kinase (SYK) approved for the treatment of chronic immune thrombocytopenia, as a repurposing candidate for the treatment of ALI. In vivo, Fostamatinib reduced MUC1 abundance in lung epithelial cells in a mouse model of ALI. In vitro, SYK inhibition by Fostamatinib promoted MUC1 removal from the cell surface. Our work reveals Fostamatinib as a repurposing drug candidate for ALI and provides the rationale for rapidly standing up clinical trials to test Fostamatinib efficacy in patients with COVID-19 lung injury.
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