SARS-CoV-2 infects human engineered heart tissues and models COVID-19 myocarditis

AL Bailey, O Dmytrenko, L Greenberg… - Basic to Translational …, 2021 - jacc.org
AL Bailey, O Dmytrenko, L Greenberg, AL Bredemeyer, P Ma, J Liu, V Penna, ES Winkler
Basic to Translational Science, 2021jacc.org
There is ongoing debate as to whether cardiac complications of coronavirus disease-2019
(COVID-19) result from myocardial viral infection or are secondary to systemic inflammation
and/or thrombosis. We provide evidence that cardiomyocytes are infected in patients with
COVID-19 myocarditis and are susceptible to severe acute respiratory syndrome
coronavirus 2. We establish an engineered heart tissue model of COVID-19 myocardial
pathology, define mechanisms of viral pathogenesis, and demonstrate that cardiomyocyte …
Summary
There is ongoing debate as to whether cardiac complications of coronavirus disease-2019 (COVID-19) result from myocardial viral infection or are secondary to systemic inflammation and/or thrombosis. We provide evidence that cardiomyocytes are infected in patients with COVID-19 myocarditis and are susceptible to severe acute respiratory syndrome coronavirus 2. We establish an engineered heart tissue model of COVID-19 myocardial pathology, define mechanisms of viral pathogenesis, and demonstrate that cardiomyocyte severe acute respiratory syndrome coronavirus 2 infection results in contractile deficits, cytokine production, sarcomere disassembly, and cell death. These findings implicate direct infection of cardiomyocytes in the pathogenesis of COVID-19 myocardial pathology and provides a model system to study this emerging disease.
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