Radioiodination and biological distribution of a new <i>s</i>
-triazine derivative for tumor uptake evaluation
作者:Mohamed A. Motaleb、Ismail T. Ibrahim、Mona O. Sarhan、Wafaa A. Zaghary
DOI:10.1002/jlcr.3682
日期:2018.12
A newly synthesized s-triazine derivative 1,1′,1″-(((1,3,5-triazine-2,4,6-triyl) tris (azanediyl)) tris (benzene-4,1-diyl))tris (ethan-1-one), (1), was synthesized as a part of an ongoing research for development of novel s-triazine-based radiopharmaceuticals. In-vitro cell viability assay against different human cancer cell lines showed very promising inhibitory activity of the synthesized compound. This finding encouraged the radioiodination of 1 to study the degree of its localization in tumor site for evaluating the possibility of its use as a tumor imaging agent. The biodistribution study showed good localization of the radioiodinated derivative 2 at tumor site following i.v. administration in solid tumor-bearing mice. Finally, in a trial to understand the mechanism of the anticancer effect exerted by 1, a target prediction study and a docking study were performed. The results of the first study showed that focal adhesion kinase is a possible target for compound 1 and the docking study confirmed successful binding of both compound 1 and its radioiodinated derivative 2 to the binding site of focal adhesion kinase. As a conclusion, the results of this study suggest that, compound 2 could be used as a potential agent for tumor imaging after preclinical trials.
作为正在进行的基于新型s-三嗪的放射性药物研发工作的一部分,我们合成了一种新合成的s-三嗪衍生物1,1′,1″-(((1,3,5-三嗪-2,4,6-三基)三(氮杂二基))三(苯-4,1-二基))三(乙烷-1-基))(1)。体外细胞活力测定显示,该合成化合物对不同人类癌细胞系具有非常理想的抑制活性。这一发现鼓励我们对1进行放射性碘化,以研究其在肿瘤部位的定位程度,从而评估其作为肿瘤成像剂的可能性。生物分布研究表明,在实体瘤小鼠静脉注射后,放射性碘化衍生物2在肿瘤部位的定位良好。最后,为了了解1发挥抗癌作用的机理,我们进行了靶点预测研究和对接研究。第一项研究结果表明,粘着斑激酶可能是化合物1的靶点,而对接研究证实,化合物1及其放射性碘化衍生物2都能成功结合到粘着斑激酶的结合位点。总之,本研究结果表明,化合物2在临床前试验后可用作潜在的肿瘤成像剂。