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1.
Molecules ; 26(12)2021 Jun 21.
Article in English | MEDLINE | ID: covidwho-1282543

ABSTRACT

Since December 2019, novel coronavirus disease 2019 (COVID-19) pandemic has caused tremendous economic loss and serious health problems worldwide. In this study, we investigated 14 natural compounds isolated from Amphimedon sp. via a molecular docking study, to examine their ability to act as anti-COVID-19 agents. Moreover, the pharmacokinetic properties of the most promising compounds were studied. The docking study showed that virtually screened compounds were effective against the new coronavirus via dual inhibition of SARS-CoV-2 RdRp and the 3CL main protease. In particular, nakinadine B (1), 20-hepacosenoic acid (11) and amphimedoside C (12) were the most promising compounds, as they demonstrated good interactions with the pockets of both enzymes. Based on the analysis of the molecular docking results, compounds 1 and 12 were selected for molecular dynamics simulation studies. Our results showed Amphimedon sp. to be a rich source for anti-COVID-19 metabolites.


Subject(s)
Biological Products/chemistry , Biological Products/pharmacology , Coronavirus 3C Proteases/chemistry , Porifera/chemistry , Porifera/metabolism , RNA-Dependent RNA Polymerase/chemistry , SARS-CoV-2/drug effects , Amino Sugars/chemistry , Amino Sugars/pharmacology , Animals , Antiviral Agents/chemistry , Antiviral Agents/pharmacology , Binding Sites , Biological Products/isolation & purification , Biological Products/pharmacokinetics , COVID-19/drug therapy , Computational Biology , Coronavirus 3C Proteases/antagonists & inhibitors , Coronavirus 3C Proteases/metabolism , Humans , Ligands , Models, Molecular , Molecular Docking Simulation , Molecular Dynamics Simulation , Protease Inhibitors/chemistry , Protease Inhibitors/pharmacology , Pyridines/chemistry , Pyridines/pharmacology , RNA-Dependent RNA Polymerase/antagonists & inhibitors , RNA-Dependent RNA Polymerase/metabolism , SARS-CoV-2/enzymology , SARS-CoV-2/metabolism
2.
RSC Adv ; 10(45): 26895-26916, 2020 Jul 15.
Article in English | MEDLINE | ID: covidwho-752449

ABSTRACT

The global outbreak of COVID-19 viral infection is associated with the absence of specific drug(s) for fighting this viral infection. About 10 million people are already infected, about 500 000 deaths all over the world to date. Great efforts have been made to find solutions for this viral infection, either vaccines, monoclonal antibodies, or small molecule drugs; this can stop the spread of infection to avoid the expected human, economic and social catastrophe associated with this infection. In the literature and during clinical trials in hospitals, several FDA approved drugs for different diseases have the potential to treat or reduce the severity of COVID-19. Repurposing of these drugs as potential agents to treat COVID-19 reduces the time and cost to find effective COVID-19 agents. This review article summarizes the present situation of transmission, pathogenesis and statistics of COVID-19 in the world. Moreover, it includes chemistry, mechanism of action at the molecular level of the possible drug molecules which are liable for redirection as potential COVID-19 therapeutic agents. This includes polymerase inhibitors, protease inhibitors, malaria drugs, lipid lowering statins, rheumatoid arthritis drugs and some miscellaneous agents. We offer research data and knowledge about the chemistry and biology of potential COVID-19 drugs for the research community in this field.

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