equals 80. Intracellular accumulation of 1-PSG complex increased with time and was much higher (96%) inside MCF7 cancer cells than in normal MRC5 cells (20%). Attachment of SarGly to cytotoxic copper(I) complex via phosphine motif improved selectivity of copper(I) complex 1-PSG into the cancer cells. Precise mechanistic study revealed that the 1-PSG complex causes apoptotic cells MCF7 death with simultaneous
常规抗癌
化学疗法的主要缺点是无法将正确量的药物直接递送给癌症。这些分子递送系统对于选择性破坏癌细胞非常重要。在此,我们报道了由SarGly(sarcosine-glycine)衍生的膦-肽共轭物(Ph2PCH2-Sar-Gly-OH,PSG)的合成,该氧化物可以很容易地与其他肽载体交换,其氧化物(OPh2PCH2-Sar-Gly-OH, OPSG)和第一个
铜(I)络合物([CuI(dmp)(P(Ph)2CH2-Sar-Gly-OH)],1-PSG,其中dmp代表2,9-二甲基-1,10-
菲咯啉)。通过元素分析,NMR(1D,2D),UV-Vis光谱和DFT(密度泛函理论)方法对化合物进行表征。PSG和1-PSG在存在大气氧的情况下在
生物培养基中稳定了几天。测试了该化合物和
顺铂对癌
细胞系的细胞毒性:小鼠结肠癌(CT26; 1-PSGIC50 = 3.12±0.1),人肺腺癌(A549; 1-PSGIC50