Synthesis of new derivatives of boehmeriasin A and their biological evaluation in liver cancer
作者:Ece Akhan Güzelcan、Ian R. Baxendale、Rengul Cetin-Atalay、Marcus Baumann
DOI:10.1016/j.ejmech.2019.01.056
日期:2019.3
synthesized in short and high yielding processes providing derivatives differing either in the alkaloid's pentacyclic scaffold or its peripheral substitution pattern. These series have enabled, for the first time, comparative studies into key biological properties revealing a new lead compound with exceptionally high activity against liver cancer cell lines in the picomolar range for both well (Huh7, Hep3B
已经在短而高产率的方法中合成了两个系列的勃姆球菌素A类似物,提供了生物碱的五环骨架或其外围取代方式不同的衍生物。这些系列首次实现了对关键生物学特性的比较研究,揭示了一种新的先导化合物,对皮摩尔级的肝癌细胞系(Huh7,Hep3B和HepG2)和弱(Mahlavu,FOCUS)都具有异常高的活性和SNU475)分化的细胞。细胞死亡的特征是通过细胞色素C释放,PARP蛋白裂解和SubG1细胞周期停滞而引起的细胞凋亡。随后的测试通过氧化应激与原位形成活性氧(ROS)和改变的磷蛋白水平相关联的细胞凋亡。化合物19降低了Akt蛋白的磷酸化,这在肝癌的肿瘤发生过程中起着至关重要的作用。由于其简单的合成方法和令人着迷的生物学特性,这种新的铅化合物可以解决肝癌治疗中尚未解决的挑战。