PMC:7600245 / 29542-30498 JSONTXT

{"target":"http://pubannotation.org/docs/sourcedb/PMC/sourceid/7600245","sourcedb":"PMC","sourceid":"7600245","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7600245","text":"The rationale for using lopinavir is attributed to multiple studies. Lopinavir exhibited an antiviral activity against SARS-CoV-2 virus in Vero E6 cells with an estimated EC50 value of 26.63 μM [85]. Computational studies have also suggested that lopinavir may inhibit the viral main protease Mpro, perhaps by targeting its active site [86,87]. Earlier, lopinavir exhibited in vitro activity against SARS-CoV-1 and MERS-CoV [88,89,90]. It also showed beneficial effects in animal studies for the treatment of MERS-CoV [91,92]. Furthermore, there is an evidence of some clinical benefit for lopinavir/ritonavir when used with ribavirin and/or INFs against MERS-CoV and SARS-CoV [88,93,94]. Yet, coronavirus proteases, including Mpro, do not have a C2-symmetric protein architecture which is the target of lopinavir and all HIV-1 protease inhibitors. This subsequently sheds doubts on the prospect of HIV-1 aspartate protease inhibitors in treating 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