New quinoline-arylamidine hybrids: Synthesis, DNA/RNA binding and antitumor activity
作者:Luka Krstulović、Ivana Stolić、Marijana Jukić、Teuta Opačak-Bernardi、Kristina Starčević、Miroslav Bajić、Ljubica Glavaš-Obrovac
DOI:10.1016/j.ejmech.2017.05.054
日期:2017.9
(groups I (2a-g) and II (5a-g)) or flexible -NH-CH2-CH2-O- (groups III (8a-g) and IV (10a-g)) linker were synthesized, and their DNA/RNA binding properties and cytotoxic activity were tested, against several human cancer lines. The compounds and their interaction with DNA and RNA were studied by UV–Vis and CD spectroscopy. The obtained results showed that the binding affinity of the investigated compounds
通过刚性-O-(I组(2a-g)和II(5a-g))或柔性-NH-CH 2 -CH 2 - O-(第三组(8a-g)和第四组(10a-g))合成了连接子,并测试了其对几种人类癌症细胞系的DNA / RNA结合特性和细胞毒性活性。通过UV-Vis和CD光谱研究了这些化合物及其与DNA和RNA的相互作用。获得的结果表明,所研究化合物的结合亲和力随着能够与ds-多核苷酸形成氢键的基团的长度和数目的增加而成比例地增加。通过降低所研究化合物的结构刚度还可以实现结合的改善,新的杂合化合物优先结合ctDNA。对于大部分的DNA / RNA槽是占主导地位的结合位点,除了从基团的化合物II其在polyA-polyU中的插入是主要的结合模式。通过MTT测试对正常(MDCK1),癌(HeLa和CaCo2)和白血病细胞系(Raji和K462)的抗增殖作用进行了测试。所有研究的化合物的GI 50值范围从5到大于100×10