Abstract
Drug repurposing has the advantage of identifying potential treatments on a shortened timescale. 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 mucin-1 (MUC1) protein abundance. Elevated MUC1 levels predict the development of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) and correlate with poor clinical outcomes. Our screen identifies 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 reduces MUC1 abundance in lung epithelial cells in a mouse model of ALI. In vitro, SYK inhibition by the active metabolite R406 promotes MUC1 removal from the cell surface. Our work suggests fostamatinib as a repurposing drug candidate for ALI.
Original language | English |
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Article number | 100137 |
Journal | Cell Reports Medicine |
Volume | 1 |
Issue number | 8 |
DOIs | |
State | Published - 17 Nov 2020 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 The Author(s)
Funding
We gratefully acknowledge stimulating discussions with Broad Institute colleagues Deborah Hung, Ramnik Xavier, Jay Rajagopal, and Aviv Regev. We thank Terry Woo (BWH Pathology) and Stephen Straub (Perkin-Elmer) for excellent technical support and expertise. SYK inhibitor R788 was provided as a gift to G.C.T. by Rigel Pharmaceuticals. This work was supported by PHS NIH R01AI148161 (to G.C.T.) and by the Slim Initiative for Genomic Medicine in the Americas (SIGMA), a collaboration of the Broad Institute with the Carlos Slim Foundation. F.W.K.T. is supported by the Ken and Mary Minton Chair of Renal Medicine . F.W.K.T. has received research project grants from and has consultancy agreements with Rigel Pharmaceuticals, and is the chief investigator of an international clinical trial of a SYK inhibitor in IgA nephropathy ( ClinicalTrials.gov NCT02112838), funded by Rigel Pharmaceuticals.
Funders | Funder number |
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PHS NIH | R01AI148161 |
Rigel Pharmaceuticals | |
Broad Institute | |
Instituto Carlos Slim de la Salud | NCT02112838 |
Keywords
- ALI
- ARDS
- COVID-19
- MUC1
- SARS-CoV-2
- acute lung injury
- acute respiratory distress syndrome
- drug repurposing
- fostamatinib