Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation Studies

Protein kinase p38γ is an attractive target against cancer because it plays a pivotal role in cancer cell proliferation by phosphorylating the retinoblastoma tumour suppressor protein. Therefore, inhibition of p38γ with active small molecules represents an attractive alternative for developing anti-...

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Main Authors: Zixuan Cheng, Mrinal Bhave, Siaw San Hwang, Taufiq Rahman, Xavier Wezen Chee
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/8/7360
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author Zixuan Cheng
Mrinal Bhave
Siaw San Hwang
Taufiq Rahman
Xavier Wezen Chee
author_facet Zixuan Cheng
Mrinal Bhave
Siaw San Hwang
Taufiq Rahman
Xavier Wezen Chee
author_sort Zixuan Cheng
collection DOAJ
description Protein kinase p38γ is an attractive target against cancer because it plays a pivotal role in cancer cell proliferation by phosphorylating the retinoblastoma tumour suppressor protein. Therefore, inhibition of p38γ with active small molecules represents an attractive alternative for developing anti-cancer drugs. In this work, we present a rigorous and systematic virtual screening framework to identify potential p38γ inhibitors against cancer. We combined the use of machine learning-based quantitative structure activity relationship modelling with conventional computer-aided drug discovery techniques, namely molecular docking and ligand-based methods, to identify potential p38γ inhibitors. The hit compounds were filtered using negative design techniques and then assessed for their binding stability with p38γ through molecular dynamics simulations. To this end, we identified a promising compound that inhibits p38γ activity at nanomolar concentrations and hepatocellular carcinoma cell growth in vitro in the low micromolar range. This hit compound could serve as a potential scaffold for further development of a potent p38γ inhibitor against cancer.
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spelling doaj.art-624cfb1db50147afa7ee4ab8974aa92e2023-11-17T19:39:17ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-04-01248736010.3390/ijms24087360Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation StudiesZixuan Cheng0Mrinal Bhave1Siaw San Hwang2Taufiq Rahman3Xavier Wezen Chee4School of Engineering and Science, Swinburne University of Technology Sarawak, Kuching 93350, MalaysiaDepartment of Chemistry and Biotechnology, Swinburne University of Technology, Melbourne, VIC 3122, AustraliaSchool of Engineering and Science, Swinburne University of Technology Sarawak, Kuching 93350, MalaysiaDepartment of Pharmacology, University of Cambridge, Cambridge CB2 1PD, UKSchool of Engineering and Science, Swinburne University of Technology Sarawak, Kuching 93350, MalaysiaProtein kinase p38γ is an attractive target against cancer because it plays a pivotal role in cancer cell proliferation by phosphorylating the retinoblastoma tumour suppressor protein. Therefore, inhibition of p38γ with active small molecules represents an attractive alternative for developing anti-cancer drugs. In this work, we present a rigorous and systematic virtual screening framework to identify potential p38γ inhibitors against cancer. We combined the use of machine learning-based quantitative structure activity relationship modelling with conventional computer-aided drug discovery techniques, namely molecular docking and ligand-based methods, to identify potential p38γ inhibitors. The hit compounds were filtered using negative design techniques and then assessed for their binding stability with p38γ through molecular dynamics simulations. To this end, we identified a promising compound that inhibits p38γ activity at nanomolar concentrations and hepatocellular carcinoma cell growth in vitro in the low micromolar range. This hit compound could serve as a potential scaffold for further development of a potent p38γ inhibitor against cancer.https://www.mdpi.com/1422-0067/24/8/7360p38γQSAR modellingvirtual screeningmolecular dynamic simulationsbinding interaction
spellingShingle Zixuan Cheng
Mrinal Bhave
Siaw San Hwang
Taufiq Rahman
Xavier Wezen Chee
Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation Studies
International Journal of Molecular Sciences
p38γ
QSAR modelling
virtual screening
molecular dynamic simulations
binding interaction
title Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation Studies
title_full Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation Studies
title_fullStr Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation Studies
title_full_unstemmed Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation Studies
title_short Identification of Potential p38γ Inhibitors via In Silico Screening, In Vitro Bioassay and Molecular Dynamics Simulation Studies
title_sort identification of potential p38γ inhibitors via in silico screening in vitro bioassay and molecular dynamics simulation studies
topic p38γ
QSAR modelling
virtual screening
molecular dynamic simulations
binding interaction
url https://www.mdpi.com/1422-0067/24/8/7360
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