Structural requirements of Dictyostelium differentiation-inducing factors for their stalk-cell-inducing activity in Dictyostelium cells and anti-proliferative activity in K562 human leukemic cells
作者:Naomi Gokan、Haruhisa Kikuchi、Koji Nakamura、Yoshiteru Oshima、Kohei Hosaka、Yuzuru Kubohara
DOI:10.1016/j.bcp.2005.06.002
日期:2005.9
signal molecule (chlorinated alkylphenone) that induces stalk-cell differentiation in the cellular slime mould Dictyostelium discoideum. It has also been shown that DIF-1 and its derivative (DIF-3) suppress cell growth in mammalian tumor cells. In the present study, in order to assess the chemical structure-effect relationship of DIF derivatives and to develop useful agents for the study of both Dictyostelium
分化诱导因子-1(DIF-1)是一种亲脂性信号分子(氯化烷基苯甲酮),可在细胞粘液霉菌盘基网柄菌中诱导茎细胞分化。还已经显示出DIF-1及其衍生物(DIF-3)抑制了哺乳动物肿瘤细胞中的细胞生长。在本研究中,为了评估DIF衍生物的化学结构与效应的关系,并开发出对Dictyostelium的发展和癌症生物学研究有用的药物,我们合成了28种DIF-1和DIF-3的类似物并研究了它们的茎盘基网柄菌HM44细胞(突变株)中的-细胞诱导活性和人白血病K562细胞中的抗增殖活性。HM44细胞在内源性DIF-1产生中存在缺陷,应该适合用于DIF类似物诱导茎细胞活性的测定。在纳摩尔水平上,DIF-1及其某些衍生物是HM44细胞中良好的茎细胞诱导剂,而在微摩尔水平上,DIF-3和某些DIF-3衍生物在K562细胞中是有效的抗增殖剂。我们还试图寻找针对DIF-1和DIF-3的拮抗分子,但未能从此处使用的类似物