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In-Silico Identification of Potent Inhibitors of COVID-19 Main Protease (Mpro) and Angiotensin Converting Enzyme 2 (ACE2) from Natural Products: Quercetin, Hispidulin, and Cirsimaritin Exhibited Better Potential Inhibition than Hydroxy-Chloroquine Against COVID-19 Main Protease Active Site and ACE2

Sekiou et al., ChemRxiv, doi:10.26434/chemrxiv.12181404.v1
Apr 2020  
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Curcumin for COVID-19
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*, now known with p = 0.000000046 from 26 studies.
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4,000+ studies for 60+ treatments.
In Silico study of natural compounds identifying quercetin, curcumin, hispidulin, cirsimaritin, sulfasalazine, and artemisin as potential compounds that inhibit SARS-CoV-2.
In Silico studies predict inhibition of SARS-CoV-2 with curcumin or metabolites via binding to the spike Note A, Nag, Moschovou, Kandeil, Singh (B), Boseila (and specifically the receptor binding domain Note B, Kant, Srivastava, Eleraky), Mpro Note C, Moschovou, Kandeil, Srivastava, Naderi Beni, Rajagopal, Rampogu, Sekiou, Singh, Winih Kinasih, Thapa, Bahun, Eleraky, Boseila, RNA-dependent RNA polymerase Note D, Singh (C), Eleraky, ACE2 Note E, Singh (B), Thapa, Alkafaas, nucleocapsid Note F, Hidayah, Suravajhala, and nsp10 Note G, Suravajhala proteins. In Vitro studies demonstrate inhibition of the spike Note A, Mohd Abd Razak (and specifically the receptor binding domain Note B, Goc (B)), Mpro Note C, Bahun, Guijarro-Real, Mohd Abd Razak, Wu, ACE2 Note E, Goc (B), and TMPRSS2 Note H, Goc (B) proteins. In Vitro studies demonstrate efficacy in Calu-3 Note I, Bormann, A549 Note J, Mohd Abd Razak, 293T Note K, Zhang, HEK293-hACE2 Note L, Nittayananta, Wu, 293T/hACE2/TMPRSS2 Note M, Septisetyani, and Vero E6 Note N, Bormann, Eleraky, Kandeil, Leka, Mohd Abd Razak, Nittayananta, Singh, Teshima, Marín-Palma cells. Curcumin is predicted to inhibit the interaction between the SARS-CoV-2 spike protein receptor binding domain and the human ACE2 receptor for the delta and omicron variants Kant, decreases pro-inflammatory cytokines induced by SARS-CoV-2 in peripheral blood mononuclear cells Marín-Palma, and alleviates SARS-CoV-2 spike protein-induced mitochondrial membrane damage and oxidative stress Zhang.
Study covers quercetin and curcumin.
Sekiou et al., 24 Apr 2020, preprint, 4 authors.
In Silico studies are an important part of preclinical research, however results may be very different in vivo.
This PaperCurcuminAll
In-silico identification of potent inhibitors of COVID-19 main protease (M pro ) and Angiotensin converting enzyme 2 (ACE2) from natural products: Quercetin, Hispidulin, and Cirsimaritin exhibited better potential inhibition than Hydroxy-Chloroquine against COVID-19 main protease active site and ACE2
Omar Sekiou, Ismail Bouziane, Zihad Bouslama, Abdelhak Djemel
COVID-19 is rapidly spreading and there are currently no specific clinical treatments available. The absence of an immediate available vaccine against SARS-CoV-2 made it hard for health professionals to tackle the problem. Thus, the need of ready to use prescription drugs or herbal remedies is urgent. SARS-CoV-2 main protease (Mpro) and Angiotensin Converting Enzyme2 (ACE2) protein structure are made available to facilitate finding solutions to the present problem. In this brief research, we compare the efficacy of some natural compounds against COVID-19 Mpro and ACE2 to that of Hydroxy-Chloroquine in silico. Molecular docking investigations were carried out using AutoDock. Virtual screening was performed using AutoDock Vina and the best ligand / protein mode was identified based on the binding energy. Amino Acids residues of ligands interactions were identified using PyMOL. According to present research results, Quercetin, Hispidulin, Cirsimaritin, Sulfasalazine, Artemisin and Curcumin exhibited better potential inhibition than Hydroxy-Chloroquine against COVID-19 main protease active site and ACE2. Our provided docking data of these compounds may help pave a way for further advanced research to the synthesis of novel drug candidate for COVID-19.
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