Design, synthesis and biological evaluation of tanshinone IIA-based analogues: Potent inhibitors of microtubule formation and angiogenesis
作者:He Huang、Yongfang Yao、Guodong Hou、Cui Zhao、Jinling Qin、Yixin Zhang、Yongtao Duan、Chuanjun Song、Junbiao Chang
DOI:10.1016/j.ejmech.2021.113708
日期:2021.11
We report the structural optimization of tanshinone IIA, a natural product which possesses anti-tumor properties but low water-solubility, weak antiproliferative activity and poor PK properties. A new series of ring A/C/D modified tanshinone analogues were synthesized and studied for their antiproliferative capacities against six human cancer cell lines. SAR study revealed that ring A cleavage of tanshinone
我们报告了丹参酮 IIA 的结构优化,这是一种天然产物,具有抗肿瘤特性,但水溶性低,抗增殖活性弱,PK 特性差。合成了一系列新的环 A/C/D 修饰的丹参酮类似物,并研究了它们对六种人类癌细胞系的抗增殖能力。SAR研究表明,丹参酮IIA的A环切割导致抗癌活性提高。将甲氧基引入苯环可以进一步增强抗癌活性。选择在 C-8 位具有甲氧基的化合物2f作为早期先导化合物,对六种测试细胞系的 IC 50值为 0.28-3.16 μM。2f可与微管蛋白秋水仙碱位点结合,抑制微管蛋白组装并破坏微管网络的正常形成。细胞机制研究表明,2f以剂量依赖性方式诱导 A549 细胞凋亡。体外研究表明,2f阻碍 HUVECs 的小管形成,并有效抑制 A549 细胞和 HUVECs 的增殖、迁移和侵袭。此外,通过斑马鱼模型试验证实了2f的体内抗血管生成作用。2f令人满意的理化性质和代谢稳定性,以及改善的水溶性,进一步表明2f