id author title date pages extension mime words sentences flesch summary cache txt cord-260315-uau554jj Ramirez, Santseharay Efficient culture of SARS-CoV-2 in human hepatoma cells enhances viability of the virus in human lung cancer cell lines permitting the screening of antiviral compounds 2020-10-04 .txt text/plain 2269 122 54 title: Efficient culture of SARS-CoV-2 in human hepatoma cells enhances viability of the virus in human lung cancer cell lines permitting the screening of antiviral compounds Culture adaptation in Huh7.5 cells further permitted efficient infection of the otherwise SARS-CoV-2 refractory human lung cancer cell line A549, with titers of ~6 Log10TCID50/mL. Importance The cell culture adapted variant of the SARS-CoV-2 virus obtained in the present study, showed significantly enhanced replication and propagation in various human cell lines, including lung derived cells otherwise refractory for infection with the original virus. Further, as shown here with the use of remdesivir and EIDD-2801, two nucs with significant inhibitory effect against SARS-CoV-2, large differences in the antiviral activity are observed depending on the cell line. 137 We performed a comparative titration in various cells of the P2 VeroE6 and the P5 Huh7.5 viruses ( Figure 138 1b) and found that the infectivity titers in Huh7.5 cells after culture adaptation had increased by more 139 than 3 logs (mean of 4.7 and 8.0 Log 10 TCID 50 /mL, respectively). ./cache/cord-260315-uau554jj.txt ./txt/cord-260315-uau554jj.txt