Discovery of Novel Schizocommunin Derivatives as Telomeric G-Quadruplex Ligands That Trigger Telomere Dysfunction and the Deoxyribonucleic Acid (DNA) Damage Response
作者:Tong Che、Shuo-Bin Chen、Jia-Li Tu、Bo Wang、Yu-Qing Wang、Yan Zhang、Jing Wang、Zeng-Qing Wang、Ze-Peng Zhang、Tian-Miao Ou、Yong Zhao、Jia-Heng Tan、Zhi-Shu Huang
DOI:10.1021/acs.jmedchem.7b01615
日期:2018.4.26
Telomeric G-quadruplex targeting and telomere maintenance interference are emerging as attractive strategies for anticancer therapies. Here, a novel molecular scaffold is explored for telomeric G-quadruplex targeting. A series of novel schizocommunin derivatives was designed and synthesized as potential telomeric G-quadruplex ligands. The interaction of telomeric G-quadruplex DNA with the derivatives
端粒G-四链体靶向和端粒维持干扰正在作为抗癌治疗的有吸引力的策略出现。在这里,一种新型的分子支架被研究用于端粒G-四链体靶向。设计和合成了一系列新型的schizocommunin衍生物,作为潜在的端粒G-四链体配体。通过生物物理分析探索端粒G-四链体DNA与衍生物的相互作用。通过甲基噻唑基四唑鎓(MTT)测定法评估了衍生物对癌细胞系的细胞毒性。在衍生物中,化合物16显示出对端粒G-四链体DNA的稳定能力和对癌细胞系的良好细胞毒性。进一步的细胞实验表明16可能会诱导细胞中端粒G-四链体的形成,在端粒处引发DNA损伤反应,并导致端粒功能障碍。这些作用最终引起了p53介导的细胞周期停滞和凋亡,并在小鼠异种移植模型中抑制了肿瘤的生长。我们的工作为端粒G-四链体配体的发展提供了一种新型的支架。