Design of Novel Inhibitors of Human Thymidine Phosphorylase: Synthesis, Enzyme Inhibition, in Vitro Toxicity, and Impact on Human Glioblastoma Cancer
作者:Nathalia D. de Moura Sperotto、Candida Deves Roth、Valnês S. Rodrigues-Junior、Christiano Ev Neves、Fávero Reisdorfer Paula、Adilio da Silva Dadda、Pedro Bergo、Talita Freitas de Freitas、Fernanda Souza Macchi、Sidnei Moura、Ana Paula Duarte de Souza、Maria Martha Campos、Cristiano Valim Bizarro、Diógenes Santiago Santos、Luiz Augusto Basso、Pablo Machado
DOI:10.1021/acs.jmedchem.8b01305
日期:2019.2.14
submicromolar range with a noncompetitive inhibition mode with both thymidine and inorganic phosphate substrates. Furthermore, compound 8g was devoid of apparent toxicity to a panel of mammalian cells, showed no genotoxicity signals, and had low probability of drug-drug interactions and moderate in vitro metabolic rates. Finally, treatment with 8g (50 mg/(kg day)) for 2 weeks (5 days/week) significantly reduced
通过触发促血管生成和抗凋亡信号传导,过表达的人胸苷磷酸化酶(hTP)与癌症侵袭性和不良预后相关。通过模拟氧杂碳鎓离子设计为过渡态类似物,合成了新型嘧啶-2,4-二酮并评估其作为hTP活性的抑制剂。最有效的化合物(8g)在亚微摩尔范围内抑制hTP,对胸苷和无机磷酸盐底物均具有非竞争性抑制模式。此外,化合物8g对一组哺乳动物细胞没有明显的毒性,没有遗传毒性信号,药物-药物相互作用的可能性低,体外代谢率中等。最后,使用体内胶质母细胞瘤模型,用8g(50 mg /(kg·天))治疗2周(5天/周)显着降低了肿瘤的生长。