Discovery of 3-phenylquinolinylchalcone derivatives as potent and selective anticancer agents against breast cancers
摘要:
A number of 3-phenylquinolinylchalcone derivatives were synthesized and evaluated in vitro for their antiproliferative activities against three breast cancer cell lines (MCF-7, MDA-MB-231, and SKBR-3), and a non-cancer normal epithelial cell line (H184B5F5/M10). Among them, (E)-3-[3-(4-methoxyphenyl)quinolin-2-yl]-1-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (7) was active against the growth of MCF-7, MDA-MB-231, and SKBR-3 with IC50 values of 1.05, 0.75, and 0.78 mu M respectively without significant cytotoxicity to the normal H184B5F5/M10 cell line and therefore, was selected as a new lead for further mechanism studies. Results indicated that compound 7 inhibited the polymerization of tubulins, induced G2/M cell cycle arrest via modulation of the cyclin B1, cdk1 and CDC25. Compound 7 ultimately induced cell apoptosis by the increase of apoptotic protein Bax and the decrease of anti-apoptotic protein Bcl-2. In addition, PARP was cleaved while caspase-3 and -8 activities were induced after the treatment of compound 7 for 24 h in a concentration-dependent manner. Thus, compound 7 induces cell cycle arrest at G2/M phase via cleavage of PARP, induces caspase-3 and -8 activities and consequently to cause the cell death. Further study on the structure optimization of 7 is ongoing. (C) 2015 Elsevier Masson SAS. All rights reserved.
Synthesis, antiproliferative and anti-dengue virus evaluations of 2-aroyl-3-arylquinoline derivatives
作者:Chih-Hua Tseng、Chun-Kuang Lin、Yeh-Long Chen、Chih-Yao Hsu、Huey-Nan Wu、Chin-Kai Tseng、Jin-Ching Lee
DOI:10.1016/j.ejmech.2014.03.074
日期:2014.5
A number of 2-aroy1-3-arylquinoline derivatives was synthesized and evaluated for their anti-Dengue virus activity. Both 2-(hydroxyphenylmethyl)-3-(4-methoxyphenyl)quinoline (13a) and 2-(4-hydroxybenzoyl)-3-(4-hydroxyphenyl)quinoline (17) were found to significantly inhibit the DENV2 RNA expression in Huh-7-DV-Fluc cells with a potency approximately equal to that of ribavirin and the inhibition is in a dose-dependent manner. Compounds 13a and 17 reduced DENV replication in both viral protein and mRNA levels, and no significant cell cytotoxicity was detected, with greater than 50% viability of Huh-7-DV-Fluc cells at a concentration of 100 mu M. However, significant cytotoxicity was detected for the positive ribavirin. In addition, we performed infectious assay to further verify the inhibitory activity of 13a and 17 on DENV replication in protein and RNA levels. On the other hand, compounds 19a-19c exhibited IC50 values ranged from 4.47 to 8.68 1iM against A549, H1299, MCF-7, and Huh-7 which were approximately equal potent to the positive topotecan. Structural optimization of lead compounds, 13a and 17, and their detailed molecular mechanism of action are ongoing. (C) 2014 Elsevier Masson SAS. All rights reserved.