Synthesis, DNA-Binding Activity and Cytotoxicity of Carbamate Derivatives of Hoechst 33258 in Breast Cancer MCF-7 Cells.
作者:Krzysztof Bielawski、Anna Bielawska、Slawomir Wolczynski
DOI:10.1248/bpb.25.916
日期:——
A series of carbamate derivatives of Hoechst 33258 was prepared as potential anticancer agents. These new compounds (1—4) were readily prepared in good yields by addition of chloroethyl, bromoethyl, chloropropyl or 4-(chloromethyl)phenyl isocyanates to Hoechst 33258. Their cytotoxic activity was evaluated on human breast cancer MCF-7. Compounds 1—4 were more cytotoxic than Hoechst 33258. In particular derivative 4, the most active of the series, is up to 3 times more potent than Hoechst 33258. The DNA-binding ability of these compounds was evaluated by an ultrafiltration method using calf thymus DNA. These data show that in broad terms the cytotoxic potency of 1—4 in cultured breast cancer MCF-7 cells increases, in accord with their increases in DNA affinity, as shown by the binding constant values.
一系列Hoechst 33258的氨基甲酸酯衍生物被制备为潜在的抗癌药物。这些新化合物(1-4)通过氯乙基、溴乙基、氯丙基或4-(氯甲基)苯基异氰酸酯与Hoechst 33258的加成反应,以良好的产率容易地制备。它们在人乳腺癌MCF-7细胞上的细胞毒活性被评估。化合物1-4比Hoechst 33258更具细胞毒性。特别是衍生物4,这一系列中最活跃的,其效力高达Hoechst 33258的3倍。这些化合物的DNA结合能力通过使用小牛胸腺DNA的超滤法进行评估。这些数据显示,在广义上,培养的乳腺癌MCF-7细胞中1-4的细胞毒效力随着它们DNA亲和力的增加而增加,正如结合常数值所示。