Targeting natural products against SARS-CoV-2

Area of Science:

• Natural product chemistry
• Virology
• Computational drug discovery

Background:

• The COVID-19 pandemic, caused by SARS-CoV-2, necessitates novel antiviral strategies.
• Natural products and their derivatives are explored for therapeutic potential against viral infections.
• In silico methods offer a pathway to identify promising natural compounds.

Purpose of the Study:

• To evaluate the antiviral activity of the terpene NT-VRL-1 against Human coronavirus (HCoV-229E).
• To theoretically analyze the effects of 19 hydrolysable tannins on SARS-CoV-2.
• To identify natural compounds that can inhibit SARS-CoV-2 replication.

Main Methods:

• In silico docking studies using Molecular Operating Environment (MOE).
• Analysis of interactions between natural compounds and SARS-CoV-2 key targets like the S1 subunit (ACE2) and 3CLpro.
• Genomic studies to understand antiviral mechanisms.

Main Results:

• The terpene NT-VRL-1 was evaluated for its antiviral movement against HCoV-229E.
• Pedunculagin, tercatan, and castalin demonstrated strong interactions with the SARS-CoV-2 binding site and catalytic dyad (Cys145, His41).
• Natural compounds were shown to inhibit the interaction between the S1 subunit and ACE2 receptor, blocking viral entry.

Conclusions:

• Natural compounds and their derivatives exhibit significant potential as antiviral agents against human coronaviruses.
• Further research into natural products offers a promising avenue for developing new therapies against SARS-CoV-2.
• Identified compounds like pedunculagin, tercatan, and castalin warrant further investigation for drug development.