20‐(S)‐Camptothecin (CPT)‐conjugated dipeptides are reported that preassemble into nanotubes with diameters ranging from 80–120 nm. These nanoassemblies maintain a high (∼47 %) drug loading and exhibit greater drug stability (i.e., resistance to lactone hydrolysis), and consequently greater efficacy against several human cancer cells (HT‐29, A549, H460, and H23) in vitro compared with the clinically
据报道20-(S)-
喜树碱(C
PT)缀合的二肽可预组装成直径为80-120 nm的纳米管。与体外相比,这些纳米组件可保持较高的药物载量(约47%),并具有更高的药物稳定性(即对内酯
水解的抵抗力),因此在体外对几种人类癌细胞(HT-29,A549,H460和H23)的功效更高与临床使用的前药
伊立替康一起使用。该系统的关键和定义性特征是使用C
PT共轭二肽既是药物又是纳米结构载体的前体,这简化了整个制造过程。