3.8 Article

Computational Docking Study of the Phytochemical Constituent, Silybin (Silybum marianum) against SARS-CoV-2 Omicron Variant Spike Glycoprotein: An In-silico Approach

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JOURNAL OF PURE AND APPLIED MICROBIOLOGY
卷 17, 期 1, 页码 385-394

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DR M N KHAN
DOI: 10.22207/JPAM.17.1.29

关键词

SARS CoV-2 Omicron; Spike Protein; Phytochemicals; Computational Approach; Antiviral Drugs

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The emergence of the Omicron variant has posed challenges in containing SARS-CoV-2 infection, but a study suggests that Silybin may be used as a therapeutic agent to effectively inhibit viral entry into human cells by blocking the interaction between the spike protein and the host ACE2 receptor.
SARS-CoV-2 is continually evolving with the emergence of new variants with increased viral pathogenicity. The emergence of heavily mutated Omicron (B.1.1.529) with spike protein mutations are known to mediate its higher transmissibility and immune escape that has brought newer challenges for global public health to contain SARS-CoV-2 infection. One has to come up with a therapeutic strategy against the virus so as to effectively contain the infection and spread. Natural phytochemicals are being considered a significant source of bioactive compounds possessing an antiviral therapeutic potential. Being a promising anticancer and chemo-preventive agent, Silybin holds a significant potential to be used as a therapeutic. In the present study, molecular docking of Silybin with Omicron spike protein (7QNW) was carried out. Molecular docking results showed greater stability of Silybin in the active site of the Omicron spike protein with suitable binding mode of interactions. The study reveals that Silybin has the potential to block the host ACE2 receptor-viral spike protein binding; thereby inhibiting the viral entry to human cells. Therefore, Silybin may be further developed as a medication with the ability to effectively combat SARS-CoV-2 Omicron.

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