Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα Inhibition

Aberrant expression of the phosphatidylinositol 3-kinase (PI3K) signalling pathway is often associated with tumourigenesis, progression and poor prognosis. Hence, PI3K inhibitors have attracted significant interest for the treatment of cancer. In this study, a series of new 6-(imidazo[1,2-a]pyridin-...

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Main Authors: Mei Li, Daoping Wang, Qing Li, Fang Luo, Ting Zhong, Hongshan Wu, Liang Xiong, Meitao Yuan, Mingzhi Su, Yanhua Fan
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/7/6851
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author Mei Li
Daoping Wang
Qing Li
Fang Luo
Ting Zhong
Hongshan Wu
Liang Xiong
Meitao Yuan
Mingzhi Su
Yanhua Fan
author_facet Mei Li
Daoping Wang
Qing Li
Fang Luo
Ting Zhong
Hongshan Wu
Liang Xiong
Meitao Yuan
Mingzhi Su
Yanhua Fan
author_sort Mei Li
collection DOAJ
description Aberrant expression of the phosphatidylinositol 3-kinase (PI3K) signalling pathway is often associated with tumourigenesis, progression and poor prognosis. Hence, PI3K inhibitors have attracted significant interest for the treatment of cancer. In this study, a series of new 6-(imidazo[1,2-a]pyridin-6-yl)quinazoline derivatives were designed, synthesized and characterized by <sup>1</sup>H NMR, <sup>13</sup>C NMR and HRMS spectra analyses. In the in vitro anticancer assay, most of the synthetic compounds showed submicromolar inhibitory activity against various tumour cell lines, among which <b>13k</b> is the most potent compound with IC<sub>50</sub> values ranging from 0.09 μΜ to 0.43 μΜ against all the tested cell lines. Moreover, <b>13k</b> induced cell cycle arrest at G2/M phase and cell apoptosis of HCC827 cells by inhibition of PI3Kα with an IC<sub>50</sub> value of 1.94 nM. These results suggested that compound <b>13k</b> might serve as a lead compound for the development of PI3Kα inhibitor.
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spelling doaj.art-458aae3d32d044efa88bfe15bf0801332023-11-17T16:56:59ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-04-01247685110.3390/ijms24076851Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα InhibitionMei Li0Daoping Wang1Qing Li2Fang Luo3Ting Zhong4Hongshan Wu5Liang Xiong6Meitao Yuan7Mingzhi Su8Yanhua Fan9State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaState Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, ChinaAberrant expression of the phosphatidylinositol 3-kinase (PI3K) signalling pathway is often associated with tumourigenesis, progression and poor prognosis. Hence, PI3K inhibitors have attracted significant interest for the treatment of cancer. In this study, a series of new 6-(imidazo[1,2-a]pyridin-6-yl)quinazoline derivatives were designed, synthesized and characterized by <sup>1</sup>H NMR, <sup>13</sup>C NMR and HRMS spectra analyses. In the in vitro anticancer assay, most of the synthetic compounds showed submicromolar inhibitory activity against various tumour cell lines, among which <b>13k</b> is the most potent compound with IC<sub>50</sub> values ranging from 0.09 μΜ to 0.43 μΜ against all the tested cell lines. Moreover, <b>13k</b> induced cell cycle arrest at G2/M phase and cell apoptosis of HCC827 cells by inhibition of PI3Kα with an IC<sub>50</sub> value of 1.94 nM. These results suggested that compound <b>13k</b> might serve as a lead compound for the development of PI3Kα inhibitor.https://www.mdpi.com/1422-0067/24/7/6851cell cycle arrestcell apoptosisPI3Kα inhibitorquinazolineimidazo[1,2-a]pyridine
spellingShingle Mei Li
Daoping Wang
Qing Li
Fang Luo
Ting Zhong
Hongshan Wu
Liang Xiong
Meitao Yuan
Mingzhi Su
Yanhua Fan
Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα Inhibition
International Journal of Molecular Sciences
cell cycle arrest
cell apoptosis
PI3Kα inhibitor
quinazoline
imidazo[1,2-a]pyridine
title Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα Inhibition
title_full Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα Inhibition
title_fullStr Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα Inhibition
title_full_unstemmed Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα Inhibition
title_short Design, Synthesis and Biological Evaluation of 6-(Imidazo[1,2-a]pyridin-6-yl)quinazoline Derivatives as Anticancer Agents via PI3Kα Inhibition
title_sort design synthesis and biological evaluation of 6 imidazo 1 2 a pyridin 6 yl quinazoline derivatives as anticancer agents via pi3kα inhibition
topic cell cycle arrest
cell apoptosis
PI3Kα inhibitor
quinazoline
imidazo[1,2-a]pyridine
url https://www.mdpi.com/1422-0067/24/7/6851
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