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Investigating mutation-specific biological activities of small molecules using quantitative structure-activity relationship for epidermal growth factor receptor in cancer
Ramasamy Sakthivel,
Published in Elsevier B.V.
2017
PMID: 28938109
Volume: 806
   
Pages: 19 - 26
Abstract
Epidermal Growth Factor Receptor (EGFR) is a potential drug target in cancer therapy. Missense mutations play major roles in influencing the protein function, leading to abnormal cell proliferation and tumorigenesis. A number of EGFR inhibitor molecules targeting ATP binding domain were developed for the past two decades. Unfortunately, they become inactive due to resistance caused by new mutations in patients, and previous studies have also reported noticeable differences in inhibitor binding to distinct known driver mutants as well. Hence, there is a high demand for identification of EGFR mutation-specific inhibitors. In our present study, we derived a set of anti-cancer compounds with biological activities against eight typical EGFR known driver mutations and developed quantitative structure-activity relationship (QSAR) models for each separately. The compounds are grouped based on their functional scaffolds, which enhanced the correlation between compound features and respective biological activities. The models for different mutants performed well with a correlation coefficient, (r) in the range of 0.72–0.91 on jack-knife test. Further, we analyzed the selected features in different models and observed that hydrogen bond and aromaticity-related features play important roles in predicting the biological activity of a compound. This analysis is complimented with docking studies, which showed the binding patterns and interactions of ligands with EGFR mutants that could influence their activities. © 2017 Elsevier B.V.
About the journal
JournalData powered by TypesetMutation Research - Fundamental and Molecular Mechanisms of Mutagenesis
PublisherData powered by TypesetElsevier B.V.
ISSN00275107
Open AccessNo
Concepts (68)
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    Antineoplastic agent
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    CAMPTOTHECIN
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    Docetaxel
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    ELESCLOMOL
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    EPIDERMAL GROWTH FACTOR RECEPTOR
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    EPOTHILONE B
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    GEFITINIB
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    GEMCITABINE
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    IMATINIB
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    Imidazole
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    JW 7521
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    LAPATINIB
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    LUMINESPIB
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    N (2,3 DIHYDROXYPROPOXY) 3,4 DIFLUORO 2 (2 FLUORO 4 IODOANILINO)BENZAMIDE
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    Paclitaxel
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    Rapamycin
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    TEMSIROLIMUS
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    Thapsigargin
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    Thiophene
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    Unclassified drug
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    Vinblastine
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    VINORELBINE TARTRATE
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    EGFR PROTEIN, HUMAN
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    EPIDERMAL GROWTH FACTOR RECEPTOR
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    PROTEIN KINASE INHIBITOR
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    Amino acid substitution
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    Aromaticity
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    Article
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    ATP BINDING DOMAIN
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    Binding affinity
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    Binding site
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    Chemical composition
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    Chemical parameters
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    Correlation coefficient
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    Error
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    EXTRACELLULAR DOMAIN
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    Hydrogen bond
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    IC50
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    Ligand binding
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    MALIGNANT NEOPLASM
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    Mean absolute error
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    Molecular docking
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    Molecular interaction
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    Molecular model
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    Mutational analysis
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    PREDICTIVE VALUE
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    Priority journal
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    PROPORTIONAL REDUCTION OF ERROR
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    Protein domain
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    Quantitative structure activity relation
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    Reliability
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    Structure analysis
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    Validation process
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    Antagonists and inhibitors
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    Genetics
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    Human
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    Molecular library
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    Mutation
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    Neoplasm
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    Pathology
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    THERAPEUTIC USE
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    Humans
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    Models, molecular
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    Neoplasms
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    PROTEIN KINASE INHIBITORS
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    QUANTITATIVE STRUCTURE-ACTIVITY RELATIONSHIP
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    RECEPTOR, EPIDERMAL GROWTH FACTOR
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    SMALL MOLECULE LIBRARIES