QSAR prediction, synthesis, anticancer evaluation, and mechanistic investigations of novel sophoridine derivatives as topoisomerase I inhibitors
作者:Lin Zhu、Yongle Yu、Youfu Ma、Yenong Shi、Jamal Alzobair Hammad Kowah、Lisheng Wang、Mingqing Yuan、Xu Liu
DOI:10.1016/j.fitote.2024.105921
日期:2024.6
Molecular docking studies verified that the derivatives exhibit stronger binding affinity with DNA topoisomerase I compared to sophoridine. In addition, demonstrated significant inhibition of DNA Topoisomerase I and could arrest cells in G/G phase. This study provides valuable insights into the design and synthesis of N-substituted sophoridine derivatives with anticancer activity.
槐定碱是从豆科植物槐花碱中提取的一种新型抗癌药物,具有一定的药理活性。在此,设计、合成了一系列新型N-取代槐定衍生物并评价了其抗癌活性。通过QSAR预测模型发现,新型槐定衍生物引入苯环作为主要药效基团,并在苯环对位重新引入苯,有效提高了抗癌活性。在体外,评估了 28 种新型化合物对四种人类肿瘤细胞系(A549、CNE-2、HepG-2 和 HEC-1-B)的抗癌活性。特别是,Compound表现出显着的抑制作用,对HepG-2细胞的IC50值为15.6 μM,超过顺式二氯二胺铂(II)。分子对接研究证实,与槐定相比,该衍生物与DNA拓扑异构酶I表现出更强的结合亲和力。此外,还表现出对 DNA 拓扑异构酶 I 的显着抑制作用,并且可以将细胞阻滞在 G/G 期。这项研究为具有抗癌活性的N-取代槐定衍生物的设计和合成提供了宝贵的见解。