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Synthesis and biological evaluation of 2-styrylquinolines as antitumour agents and EGFR kinase inhibitors: molecular docking study.

ABSTRACT: A new series of 4,6-disubstituted 2-(4-(dimethylamino)styryl)quinoline 4a,b-9a,b was synthesized by the reaction of 2-(4-(dimethylamino)styryl)-6-substituted quinoline-4-carboxylic acids 3a,b with thiosemicarbazide, p-hydroxybenzaldehyde, ethylcyanoacetate, and 2,4-pentandione. In addition, the antitumour activity of all synthesized compounds 3a,b-9a,b was studied via MTT assay against two cancer cell lines (HepG2 and HCT116). Furthermore, epidermal growth factor receptor (EGFR) inhibition, using the most potent antitumour compounds, 3a, 3b, 4a, 4b, and 8a, was evaluated. The interpretation of the results showed clearly that the derivatives 3a, 4a, and 4b exhibited the highest antitumour activities against the tested cell lines HepG2 and HCT116 with IC50 range of 7.7-14.2?µg/ml, in comparison with the reference drugs 5-fluorouracil (IC50?=?7.9 and 5.3?µg/ml, respectively) and afatinib (IC50?=?5.4 and 11.4?µg/ml, respectively). In vitro EGFR screening showed that compounds 3a, 3b, 4a, 4b, and 8a exhibited moderate inhibition towards EGFR with IC50 values at micromolar levels (IC50 range of 16.01-1.11?µM) compared with the reference drugs sorafenib (IC50 =?1.14?µM) and erlotinib (IC50 =?0.1?µM). Molecular docking was performed to study the mode of interaction of compounds 3a and 4b with EGFR kinase.

SUBMITTER: El-Sayed MA

PROVIDER: S-EPMC7012010 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Synthesis and biological evaluation of 2-styrylquinolines as antitumour agents and EGFR kinase inhibitors: molecular docking study.

El-Sayed Magda A-A MA El-Husseiny Walaa M WM Abdel-Aziz Naglaa I NI El-Azab Adel S AS Abuelizz Hatem A HA Abdel-Aziz Alaa A-M AA

Journal of enzyme inhibition and medicinal chemistry 20181201 1

A new series of 4,6-disubstituted 2-(4-(dimethylamino)styryl)quinoline 4a,b-9a,b was synthesized by the reaction of 2-(4-(dimethylamino)styryl)-6-substituted quinoline-4-carboxylic acids 3a,b with thiosemicarbazide, p-hydroxybenzaldehyde, ethylcyanoacetate, and 2,4-pentandione. In addition, the antitumour activity of all synthesized compounds 3a,b-9a,b was studied via MTT assay against two cancer cell lines (HepG2 and HCT116). Furthermore, epidermal growth factor receptor (EGFR) inhibition, usin ...[more]

PMID: 29251017

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Project description:Novel quinoxaline derivatives (2a-d, 3, 4a, 4b and 5-15) have been synthesized via the reaction of 4-methyl-3-oxo-3,4-dihydroquinoxaline-2-carbohydrazide (1) with different aldehydes, ketones, diketones, ketoesters, as well as hydrazine, phenyl isothiocyanate, carbon disulphide. The synthesized products have been screened for their in vitro anticancer and COX inhibitory activities. Most of the synthesized compounds exhibited good anticancer and COX-2 inhibitory activities. MTT assay revealed that compounds 11 and 13 were the most potent and exhibited very strong anticancer activity against the three cancer cell lines with IC50 values ranging from 0.81 μM to 2.91 μM. Compounds 4a and 5 come next and displayed strong anticancer activity against the three cancer cell lines with IC50 values ranging from 3.21 μM to 4.54 μM. Mechanistically, compounds 4a and 13 were the most active and potently inhibited EGFR with IC50 = 0.3 and 0.4 μM, respectively. Compounds 11 and 5 come next with IC50 = 0.6 and 0.9 μM, respectively. Moreover, compounds 11 and 13 were the most potent as COX-2 inhibitors and displayed higher potency against COX-2 (IC50 = 0.62 and 0.46 μM, respectively) more than COX-1 (IC50 = 37.96 and 30.41 μM, respectively) with selectivity indexes (SI) of 61.23 and 66.11, respectively. Compounds 4a and 5 comes next with IC50 = 1.17 and 0.83 μM and SI of 24.61 and 48.58, respectively. Molecular docking studies into the catalytic binding pocket of both protein receptors, EGFR and COX-2, showed good correlation with the obtained biological results. Parameters of Lipinski's rule of five and Veber's standard were calculated and revealed that compounds 4a, 5, 11 and 13 had a reasonable drug-likeness with acceptable physicochemical properties. Therefore, based on the obtained biological results accompanied with the docking study and physicochemical parameters, it could be concluded that compounds 4a, 5, 11 and 13 could be used as promising orally absorbed dual anti-inflammatory agents via inhibition of COX-2 enzyme and anticancer candidates via inhibition of EGFR enzyme and could be used as a future template for further investigations.

Dataset Information

Synthesis and biological evaluation of 2-styrylquinolines as antitumour agents and EGFR kinase inhibitors: molecular docking study.

Publications

Synthesis and biological evaluation of 2-styrylquinolines as antitumour agents and EGFR kinase inhibitors: molecular docking study.

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