Sankara Rao N, Nagesh Narayana, Lakshma Nayak V, Sunkari Satish, Tokala Ramya, Kiranmai Gaddam, Regur Phanindranath, Shankaraiah Nagula, Kamal Ahmed
Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India . Email:
Academy of Scientific and Innovative Research. (AcSIR) , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India.
Medchemcomm. 2018 Nov 8;10(1):72-79. doi: 10.1039/c8md00395e. eCollection 2019 Jan 1.
A new series of different naphthalimide-benzothiazole/cinnamide derivatives were designed, synthesized and tested for their cytotoxicity on selected human cancer cell lines. Among them, derivatives and with the 6-aminobenzothiazole ring and with the cinnamide ring displayed potent cytotoxic activity against colon (IC: 3.715 and 3.467 μM) and lung cancer (IC: 4.074 and 3.890 μM) cell lines when compared to amonafide (IC: 5.459 and 7.762 μM). Later, the DNA binding studies for these selected derivatives (by CD, UV/vis, fluorescence spectroscopy, DNA viscosity, and molecular docking) suggested that these new derivatives significantly intercalate between two strands of DNA. In addition, the most potent derivatives and were also found to inhibit DNA topoisomerase-II.
设计、合成了一系列新型的不同萘酰亚胺-苯并噻唑/肉桂酰胺衍生物,并测试了它们对选定人类癌细胞系的细胞毒性。其中,具有6-氨基苯并噻唑环的衍生物和具有肉桂酰胺环的衍生物,与氨茴酸(IC:5.459和7.762 μM)相比,对结肠癌细胞系(IC:3.715和3.467 μM)和肺癌细胞系(IC:4.074和3.890 μM)显示出强大的细胞毒性活性。后来,对这些选定衍生物进行的DNA结合研究(通过圆二色光谱、紫外可见光谱、荧光光谱、DNA粘度和分子对接)表明,这些新衍生物能显著地插入DNA的两条链之间。此外,还发现最具活性的衍生物和也能抑制DNA拓扑异构酶-II。