Virtual Screening for Type II B Inhibitors of B-RafV600E Kinase

Author(s): Kai-Xiong Qiu, Wen Zhang, Fang Yu, Wei Li, Zhong-Wen Sun, Shu-Qun Zhang, Ya-Juan Chen, Hui-Ding Xie*

Journal Name: Current Computer-Aided Drug Design

Volume 16 , Issue 3 , 2020

DOI : 10.2174/1573409915666190130162821

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Abstract:

Background: B-RafV600E kinase was identified as an important target in current cancer treatment, and the type II B inhibitors show good qualities in preclinical studies. Therefore, it is very important to discover novel II B inhibitors of B-RafV600E kinase.

Methods: In order to discover novel II B inhibitors of B-RafV600E kinase, virtual screening against ZINC database was performed by using a combination of pharmacophore modelling, molecular docking, 3DQSAR model and binding free energy (ΔGbind) calculation studies. The inhibitory activities against A375 cell lines of the hit compounds were tested by using MTT assay.

Results: Five promising hit compounds were obtained after screening, and all the five hit compounds showed good inhibitory rates against A375 cell lines.

Conclusion: The combined approach of the virtual screening in our work is effective, which can be used to discover novel inhibitors with a new skeleton. In addition, the five compounds obtained from the screening showed good inhibitory rates against A375 cell lines, which can be considered to develop new II B inhibitors of B-RafV600E kinase.

Keywords: B-RafV600E kinase, type II B inhibitors, virtual screening, pharmacophore modelling, molecular docking, 3DQSAR, binding free energy calculation.

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VOLUME: 16
ISSUE: 3
Year: 2020
Published on: 03 June, 2020
Page: [222 - 230]
Pages: 9
DOI: 10.2174/1573409915666190130162821
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