COVID-19 disease caused by SARS-CoV-2 is lacking efficient medication although certain medications are used to relief its symptoms.
Objectives
We tested an FDA-approved antiviral medication namely rilpivirine to find a drug against SARS-CoV-2.
Methods
The inhibition of rilpivirine against multiple SARS-CoV-2 therapeutic targets was studied using in silico method. The binding attraction of the protein-ligand complexes were calculated using molecular docking analysis.
Results
Docking rilpivirine with main protease (Mpro), papin like protease (PLpro), sprike protein (Spro), human angiotensin converting enzyme-2 (ACE2), and RNA dependent-RNA polymerase (RdRp) yielded binding energies of −8.07, −8.40, −7.55, −9.11, and −8.69 kcal/mol, respectively. The electrostatic interaction is the key force in stabilizing the RdRp-rilpivirine complex, while van der Waals interaction dominates in the ACE2 rilpivirine case. Our findings suggest that rilpivirine can inhibit SARS-CoV-2 replication by targeting not only ACE2, but also RdRp and other targets, and therefore, it can be used to invoke altered mechanisms at the pre-entry and post-entry phases.
Conclusion
As a result of our in silico molecular docking study, we suggest that rilpivirine is a compound that could act as a powerful inhibitor against SARS-CoV-2 targets. Although in vitro and in vivo experiments are needed to verify this prediction we believe that this antiviral drug may be used in preclinical trials to fight against SARS coronavirus.
