期刊
VIRUSES-BASEL
卷 15, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/v15030663
关键词
heparan sulfate; enoxaparin; coronavirus; HCoV-229E; HCoV-OC43; APN; 9-O-Ac-Sia; molecular docking
类别
It is known that the spike protein of human coronaviruses can bind to a secondary receptor to facilitate the virus entry. This study aims to evaluate the inhibitory activity of heparan sulfate and enoxaparin sodium on viral strains HCoV-229E and HCoV-OC43. In vitro experiments and molecular docking simulations confirmed the interactions at the interface of the spike proteins.
It is known that the spike protein of human coronaviruses can bind to a secondary receptor, or coreceptor, to facilitate the virus entry. While HCoV-229E uses human aminopeptidase N (hAPN) as a receptor, HCoV-OC43 binds to 9-O-acetyl-sialic acid (9-O-Ac-Sia), which is linked in a terminal way to the oligosaccharides that decorate glycoproteins and gangliosides on the surface of the host cell. Thus, evaluating the possible inhibitory activity of heparan sulfate, a linear polysaccharide found in animal tissues, and enoxaparin sodium on these viral strains can be considered attractive. Therefore, our study also aims to evaluate these molecules' antiviral activity as possible adsorption inhibitors against non-SARS-CoV. Once the molecules' activity was verified in in vitro experiments, the binding was studied by molecular docking and molecular dynamic simulations confirming the interactions at the interface of the spike proteins.
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