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Salerno, José Alexandre; Torquato, Thayana; Temerozo, Jairo R; Goto-Silva, Livia; Karmirian, Karina; Mendes, Mayara A; Sacramento, Carolina Q; Fintelman-Rodrigues, Natalia; Souza, Letícia R Q; Ornelas, Isis M; Veríssimo, Carla P; Aragão, Luiz Guilherme H S; Vitória, Gabriela; Pedrosa, Carolina S G; da Silva Gomes Dias, Suelen; Cardoso Soares, Vinicius; Puig-Pijuan, Teresa; Salazar, Vinícius; Dariolli, Rafael; Biagi, Diogo; Furtado, Daniel R; Barreto Chiarini, Luciana; Borges, Helena L; Bozza, Patrícia T; Zaluar P Guimarães, Marilia; Souza, Thiago M L; Rehen, Stevens K
PeerJ (San Francisco, CA), 12/2021, Letnik: 9Journal Article
SARS-CoV-2 infects cardiac cells and causes heart dysfunction. Conditions such as myocarditis and arrhythmia have been reported in COVID-19 patients. The Sigma-1 receptor (S1R) is a ubiquitously expressed chaperone that plays a central role in cardiomyocyte function. S1R has been proposed as a therapeutic target because it may affect SARS-CoV-2 replication; however, the impact of the inhibition of S1R in human cardiomyocytes remains to be described. In this study, we investigated the consequences of S1R inhibition in iPSC-derived human cardiomyocytes (hiPSC-CM). SARS-CoV-2 infection in hiPSC-CM was productive and reduced cell survival. S1R inhibition decreased both the number of infected cells and viral particles after 48 hours. S1R inhibition also prevented the release of pro-inflammatory cytokines and cell death. Although the S1R antagonist NE-100 triggered those protective effects, it compromised cytoskeleton integrity by downregulating the expression of structural-related genes and reducing beating frequency. Our findings suggest that the detrimental effects of S1R inhibition in human cardiomyocytes' integrity may abrogate its therapeutic potential against COVID and should be carefully considered.
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in: SICRIS
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