Small Molecule Inhibitors of Middle East Respiratory Syndrome Coronavirus Fusion by Targeting Cavities on Heptad Repeat Trimers.
Identifieur interne : 000078 ( Main/Exploration ); précédent : 000077; suivant : 000079Small Molecule Inhibitors of Middle East Respiratory Syndrome Coronavirus Fusion by Targeting Cavities on Heptad Repeat Trimers.
Auteurs : Mahmoud Kandeel [Arabie saoudite] ; Mizuki Yamamoto [Japon] ; Abdulla Al-Taher [Arabie saoudite] ; Aya Watanabe [Japon] ; Kentaro Oh-Hashi [Japon] ; Byoung Kwon Park [Corée du Sud] ; Hyung-Joo Kwon [Corée du Sud] ; Jun-Ichiro Inoue [Japon] ; Mohammed Al-Nazawi [Arabie saoudite]Source :
- Biomolecules & therapeutics [ 1976-9148 ] ; 2020.
Abstract
Middle East Respiratory Syndrome Coronavirus (MERS-CoV) is a newly emerging viral disease with fatal outcomes. However, no MERS-CoV-specific treatment is commercially available. Given the absence of previous structure-based drug discovery studies targeting MERS-CoV fusion proteins, this set of compounds is considered the first generation of MERS-CoV small molecule fusion inhibitors. After a virtual screening campaign of 1.56 million compounds followed by cell-cell fusion assay and MERS-CoV plaques inhibition assay, three new compounds were identified. Compound numbers 22, 73, and 74 showed IC50 values of 12.6, 21.8, and 11.12 µM, respectively, and were most effective at the onset of spike-receptor interactions. The compounds exhibited safe profiles against Human embryonic kidney cells 293 (HEK293) at a concentration of 20 µM with no observed toxicity in Vero cells at 10 µM. The experimental results are accompanied with predicted favorable pharmacokinetic descriptors and drug-likeness parameters. In conclusion, this study provides the first generation of MERS-CoV fusion inhibitors with potencies in the low micromolar range.
DOI: 10.4062/biomolther.2019.202
PubMed: 32126736
Affiliations:
- Arabie saoudite, Corée du Sud, Japon
- Préfecture de Gifu, Région de Kantō, Région du Chūbu
- Gifu (ville), Tokyo
- Université de Gifu, Université de Tokyo
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Le document en format XML
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<front><div type="abstract" xml:lang="en">Middle East Respiratory Syndrome Coronavirus (MERS-CoV) is a newly emerging viral disease with fatal outcomes. However, no MERS-CoV-specific treatment is commercially available. Given the absence of previous structure-based drug discovery studies targeting MERS-CoV fusion proteins, this set of compounds is considered the first generation of MERS-CoV small molecule fusion inhibitors. After a virtual screening campaign of 1.56 million compounds followed by cell-cell fusion assay and MERS-CoV plaques inhibition assay, three new compounds were identified. Compound numbers 22, 73, and 74 showed IC<sub>50</sub>
values of 12.6, 21.8, and 11.12 µM, respectively, and were most effective at the onset of spike-receptor interactions. The compounds exhibited safe profiles against Human embryonic kidney cells 293 (HEK293) at a concentration of 20 µM with no observed toxicity in Vero cells at 10 µM. The experimental results are accompanied with predicted favorable pharmacokinetic descriptors and drug-likeness parameters. In conclusion, this study provides the first generation of MERS-CoV fusion inhibitors with potencies in the low micromolar range.</div>
</front>
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