An integrated approach to the discovery of potent agelastatin A analogues for brain tumors: chemical synthesis and biological, physicochemical and CNS pharmacokinetic analyses
作者:Zhimin Li、Daisuke Shigeoka、Thomas R. Caulfield、Takashi Kawachi、Yushi Qiu、Takuma Kamon、Masayoshi Arai、Han W. Tun、Takehiko Yoshimitsu
DOI:10.1039/c3md00094j
日期:——
(−)-Agelastatin A (AA), isolated from the coral sea axinellid sponge Agelas dendromorpha, has shown a high antineoplastic activity. We have synthesized eighteen AA analogues and analyzed their cytotoxicities towards three cancer cell lines. By the structure–activity relationship (SAR) study, we identified three novel analogues with higher or comparable cytotoxic activities to AA. They were subjected to chemoinformatic analysis, which revealed physicochemical properties favoring excellent central nervous system (CNS) penetration. CNS pharmacokinetic analysis in murine models validated the chemoinformatic prediction and revealed that these analogues indeed had better CNS penetration than AA. These novel potent AA analogues deserve further evaluation for therapeutic use against cancers, particularly primary and secondary brain tumors.
(−)-阿基拉斯汀A(AA),从珊瑚海轴腺海绵Agelas dendromorpha中提取,表现出显著的抗肿瘤活性。我们合成了十八种AA类似物,并分析了它们对三种癌细胞系的细胞毒性。通过结构-活性关系(SAR)研究,我们鉴定了三种具有更高或可比细胞毒活性的创新类似物。它们进行了化学信息学分析,结果显示其物理化学特性有利于优良的中枢神经系统(CNS)穿透。在小鼠模型中的CNS药代动力学分析验证了化学信息学的预测,并揭示这些类似物确实比AA具有更好的CNS穿透能力。这些新型的强效AA类似物值得进一步评估以用于癌症治疗,尤其是原发性和继发性脑肿瘤。