151. BET Inhibition Blocks Inflammation-Induced Cardiac Dysfunction and SARS-CoV-2 Infection
- Author
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Cameron Bishop, Kathy Karavendzas, Kamil A. Sokolowski, Brian W.C. Tse, Brendan Griffen, Rajeev Rudraraju, Wei Zhao, Norman C.W. Wong, Charley Mackenzie-Kludas, Kelli P. A. MacDonald, Thuy T. Le, Sophie Krumeich, Gregory A. Quaife-Ryan, Leo J. Lee, Richard J. Mills, David A. Elliott, Stephen J. Nicholls, Holly K. Voges, Christian R. Engwerda, Daniel J. Rawle, Andreas Suhrbier, Li Fu, Jan Johansson, Rebecca L Johnston, Kanta Subbarao, Sean J. Humphrey, Mary Lor, James H McMahon, Enzo R. Porrello, Dad Abu-Bonsrah, Ewelina Kulikowski, Patrick R. J. Fortuna, Lynn Devilee, James E. Hudson, Tobias Bald, Troy Dumenil, Ellen Mathieson, Liam T Reynolds, David E. James, Michael O. Sweeney, Simon R. Foster, Drew M. Titmarsh, Christopher Halliday, Neda R Mehdiabadi, Dean Gilham, and Mark J. Smyth
- Subjects
Cardiotonic Agents ,Heart Diseases ,Human Embryonic Stem Cells ,Diastole ,Inflammation ,Cell Cycle Proteins ,Pharmacology ,General Biochemistry, Genetics and Molecular Biology ,Article ,Cell Line ,03 medical and health sciences ,Mice ,0302 clinical medicine ,medicine ,Animals ,Humans ,Interferon gamma ,STAT1 ,Transcription factor ,030304 developmental biology ,Quinazolinones ,0303 health sciences ,biology ,COVID-19 ,COVID-19 Drug Treatment ,Mice, Inbred C57BL ,Coronavirus ,Angiotensin-converting enzyme 2 ,biology.protein ,Cytokines ,Tumor necrosis factor alpha ,Female ,Angiotensin-Converting Enzyme 2 ,medicine.symptom ,030217 neurology & neurosurgery ,medicine.drug ,Transcription Factors - Abstract
Cardiac injury and dysfunction occur in COVID-19 patients and increase the risk of mortality. Causes are ill defined, but could be direct cardiac infection and/or inflammation-induced dysfunction. To identify mechanisms and cardio-protective drugs, we use a state-of-the-art pipeline combining human cardiac organoids with phosphoproteomics and single nuclei RNA sequencing. We identify an inflammatory ‘cytokine-storm’, a cocktail of interferon gamma, interleukin 1β and poly(I:C), induced diastolic dysfunction. Bromodomain-containing protein 4 is activated along with a viral response that is consistent in both human cardiac organoids and hearts of SARS-CoV-2 infected K18-hACE2 mice. Bromodomain and extraterminal family inhibitors (BETi) recover dysfunction in hCO and completely prevent cardiac dysfunction and death in a mouse cytokine-storm model. Additionally, BETi decreases transcription of genes in the viral response, decreases ACE2 expression and reduces SARS-CoV-2 infection of cardiomyocytes. Together, BETi, including the FDA breakthrough designated drug apabetalone, are promising candidates to prevent COVID-19 mediated cardiac damage., A combination of phosphoproteomics, drug screening and single-cell sequencing approaches identifies how cytokines elevated in COVID-19 patients drives cardiac dysfunction, with BET inhibitors serving as potential lead candidates decrease ACE2 cardiac expression and infection.
- Published
- 2021