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Design, synthesis and biological evaluation of novel indolin-2-ones as potent anticancer compounds.

ABSTRACT: The indolin-2-one core is a privileged structure for antitumor agents, especially kinase inhibitors. Twenty-three novel indolin-2-ones were designed by molecular dissection of the anticancer drug indirubin. Seventeen of them exhibited significant inhibition against the tested cell lines, and two of them (1c and 1h) showed IC50 values at the submicromolar level against HCT-116 cells. Compounds 1c and 2c were also potent inhibitors of the triple-negative breast cancer (TNBC) cell line MDA-MB-231. Flow cytometry was utilized to explore the antitumor mechanism of 1c and 2c with MDA-MB-231 cells, and distinct effects were observed on 2c. Furthermore, immunocytochemical examination of 1c suggested a destabilization of microtubules, which was significantly different from the effect of IM, an indirubin derivative.

SUBMITTER: Zhou A

PROVIDER: S-EPMC6432916 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Design, synthesis and biological evaluation of novel indolin-2-ones as potent anticancer compounds.

Zhou Andong A Yan Lei L Lai Fangfang F Chen Xiaoguang X Goto Masuo M Lee Kuo-Hsiung KH Xiao Zhiyan Z

Bioorganic & medicinal chemistry letters 20170607 15

The indolin-2-one core is a privileged structure for antitumor agents, especially kinase inhibitors. Twenty-three novel indolin-2-ones were designed by molecular dissection of the anticancer drug indirubin. Seventeen of them exhibited significant inhibition against the tested cell lines, and two of them (1c and 1h) showed IC<sub>50</sub> values at the submicromolar level against HCT-116 cells. Compounds 1c and 2c were also potent inhibitors of the triple-negative breast cancer (TNBC) cell line M ...[more]

PMID: 28625363

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Project description:This study reports the formation of 5-FU co-crystals with four different pharmacologically safe co-formers; Urea, Thiourea, Acetanilide and Aspirin using methanol as a solvent. Two fabrication schemes were followed i.e., solid-state grinding protocol, in which API and co-formers were mixed through vigorous grinding while in the other method separate solutions of both the components were made and mixed together. The adopted approaches offer easy fabrication protocols, no temperature maintenance requirements, no need of expensive solvents, hardly available apparatus, isolation and purification of the desired products. In addition, there is no byproducts formation, In fact, a phenomenon embracing the requirements of green synthesis. Through FTIR analysis; for API the N-H absorption frequency was recorded at 3409.02 cm-1 and that of -C[bond, double bond]O was observed at 1647.77 cm-1. These characteristics peaks of 5-FU were significantly shifted and recorded at 3499.40 cm-1 and 1649.62 cm-1 for 5-FU-Ac (3B) and 3496.39 cm-1 and 1659.30 cm-1 for 5-FU-As (4B) co-crystals for N-H and -C[bond, double bond]O groups respectively. The structural differences between API and co-crystals were further confirmed through PXRD analysis. The characteristic peak of 5-FU at 2θ = 28.79918o was significantly shifted in the graphs of co-crystals not only in position but also with respect to intensity and FWHM values. In addition, new peaks were also recorded in all the spectra of co-formers confirming the structural differences between API and co-formers. In addition, percent growth inhibition was also observed by all the co-crystals through MTT assay against HCT 116 colorectal cell lines in vitro. At four different concentrations; 25, 50, 100 and 200 µg/mL, slightly different trends of the effectiveness of API and co-crystals were observed. However; among all the co-crystal forms, 5-FU-thiourea co-crystals obtained through solution method (2B) proved to be the most effective growth inhibitor at all the four above mentioned concentrations.

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Design, synthesis and biological evaluation of novel indolin-2-ones as potent anticancer compounds.

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Design, synthesis and biological evaluation of novel indolin-2-ones as potent anticancer compounds.

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