曲沙他滨是一种具有非天然 L 构型的细胞毒性脱氧胞苷类似物,可被脱氧胞苷激酶 (dCK) 激活。与其他脱氧核苷类似物相比,这种构型是造成曲沙他滨吸收和代谢差异的原因。使用大多数核苷抗癌剂的主要缺点源于它们的亲水性,该特性需要高且频繁的静脉内给药剂量。为了克服这个问题,开发了几种在氨基中修饰的具有更高亲脂性的线性脂肪族链的曲沙他滨前药。为了确定这些前药是否比曲沙他滨具有优势,将胰腺癌细胞系暴露于曲沙他滨和亲脂性前药。
In Vitro Optimization of Non-Small Cell Lung Cancer Activity with Troxacitabine, <scp>l</scp>-1,3-Dioxolane-cytidine, Prodrugs
作者:Marco Radi、Auke D. Adema、Jonathan R. Daft、Jong H. Cho、Eveline K. Hoebe、Lou-Ella M. M. Alexander、Godefridus J. Peters、Chung K. Chu
DOI:10.1021/jm0612923
日期:2007.5.1
l-1,3-Dioxolane-cytidine, a potent anticancer agent against leukemia, has limited efficacy against solid tumors, perhaps due to its hydrophilicity. Herein, a library of prodrugs were synthesized to optimize in vitro antitumor activity against non-small cell lung cancer. N-4-Substituted fatty acid amide prodrugs of 10-16 carbon chain length demonstrated significantly improved antitumor activity over l-1,3-dioxolane-cytidine. These in vitro results suggest that the in vivo therapeutic efficacy of l-1,3-dioxolane-cytidine against solid tumors may be improved with prodrug strategies.