key: cord-1012497-vley73hp authors: Rashedi, Jalil; Mahdavi Poor, Behroz; Asgharzadeh, Mohammad title: Sodium Bicarbonate Nebulized Therapy in Patients with Confirmed COVID-19 date: 2020-10-14 journal: Adv Pharm Bull DOI: 10.34172/apb.2021.047 sha: 323d19e9a7d3685498bd4ecbb0ba46ebff5b7da9 doc_id: 1012497 cord_uid: vley73hp nan . Assumed pathway of endocytosis of SARS-CoV-2 into the target cells with Sodium bicarbonate (right pathway) and without it (left one). Binding of the virus S-protein to ACE2 promotes internalization into endosomes, where the low pH environment triggers fusion activity in the S-protein. Inhibitors of acidification, such as NaHCO 3 , CLQ/CLQ-OH, NH 4 Cl or BAF can be used to dissect the pathway because they specifically block pH-dependent membrane fusion. Cellular entry of the SARS coronavirus Mechanisms of coronavirus cell entry mediated by the viral spike protein The avian coronavirus infectious bronchitis virus undergoes direct low-pH-dependent fusion activation during entry into host cells Role of pH in syncytium induction and genome uncoating of avian infectious bronchitis coronavirus (IBV) Alteration of the pH dependence of coronavirus-induced cell fusion: effect of mutations in the spike glycoprotein pH-dependent entry of severe acute respiratory syndrome coronavirus is mediated by the spike glycoprotein and enhanced by dendritic cell transfer through DC-SIGN Structural and molecular modelling studies reveal a new mechanism of action of chloroquine and hydroxychloroquine against SARS-CoV-2 infection