1. New use of old drugs in the treatment of SARS-CoV-2 infection
Chinese Journal of Clinical Pharmacology and Therapeutics 2020;25(2):126-134
Recently, pneumonia caused by 2019 new coronavirus (SARS-CoV-2) outbroke in Wuhan, China, which has threatened people's health and lives and enormously influenced the people's daily life in China. However, there are currently no specific anti-SARS-CoV-2 drugs with explicit therapeutic efficacy. Some clinical drugs, which have been shown certain inhibitory activities for SARS-CoV-2 in vitro or have previously been reported to inhibit coronavirus infection, have been applied for clinical trials or tentative treatment of SARS-CoV-2 infected patients. From the perspective of exploring the new use of old drugs, this review mainly introduces characteristics, including mechanisms of action, in vitro antiviral effects and side effects, and research progress of these drugs, hoping to provide referential ideas for the treatment of SARS-CoV-2 infected patients.
2.A core epitope targeting antibody of SARS-CoV-2.
Simeng ZHAO ; Fengjiang LIU ; Shizhen QIU ; Qiaoshuai LAN ; Yiran WU ; Wei XU ; Junzi KE ; Jie YANG ; Xiaoyan LIU ; Kun WANG ; Hangtian GUO ; Shuai XIA ; Fangfang ZHANG ; Jiabei WANG ; Xiaowen HU ; Lu LU ; Shibo JIANG ; Suwen ZHAO ; Lianxin LIU ; Youhua XIE ; Xiuna YANG ; Haopeng WANG ; Guisheng ZHONG
Protein & Cell 2023;14(1):74-78
3.A highly potent and stable pan-coronavirus fusion inhibitor as a candidate prophylactic and therapeutic for COVID-19 and other coronavirus diseases.
Jie ZHOU ; Wei XU ; Zezhong LIU ; Chao WANG ; Shuai XIA ; Qiaoshuai LAN ; Yanxing CAI ; Shan SU ; Jing PU ; Lixiao XING ; Youhua XIE ; Lu LU ; Shibo JIANG ; Qian WANG
Acta Pharmaceutica Sinica B 2022;12(4):1652-1661
The development of broad-spectrum antivirals against human coronaviruses (HCoVs) is critical to combat the current coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its variants, as well as future outbreaks of emerging CoVs. We have previously identified a polyethylene glycol-conjugated (PEGylated) lipopeptide, EK1C4, with potent pan-CoV fusion inhibitory activity. However, PEG linkers in peptide or protein drugs may reduce stability or induce anti-PEG antibodies in vivo. Therefore, we herein report the design and synthesis of a series of dePEGylated lipopeptide-based pan-CoV fusion inhibitors featuring the replacement of the PEG linker with amino acids in the heptad repeat 2 C-terminal fragment (HR2-CF) of HCoV-OC43. Among these lipopeptides, EKL1C showed the most potent inhibitory activity against infection by SARS-CoV-2 and its spike (S) mutants, as well as other HCoVs and some bat SARS-related coronaviruses (SARSr-CoVs) tested. The dePEGylated lipopeptide EKL1C exhibited significantly stronger resistance to proteolytic enzymes, better metabolic stability in mouse serum, higher thermostability than the PEGylated lipopeptide EK1C4, suggesting that EKL1C could be further developed as a candidate prophylactic and therapeutic for COVID-19 and other coronavirus diseases.