Micheliolide (MCL) derivatives with etherification or esterification of the hydroxyl group at the C4 position were synthesized and evaluated for their activities against different acute myelogenous leukemia (AML) cell lines. These derivatives demonstrated comparable activities against AML cell lines HL-60 and doxorubicin resistant cell line HL-60/A. As to multi-drug resistant AML progenitor cells KG-1a, MCL and some of its derivatives maintained significant activities, and only 1.1–2.7 fold activity reductions were observed when compared with the activities against HL-60, while doxorubicin showed 20-fold activity reduction. Our study demonstrated that the C4 hydroxyl group of MCL might not only be a suitable position for structural modifications, but also be a starting point for the design of appropriate molecular probes to explore the specific targets in the progenitor cell line KG-1a.
合成了在C4位点的羟基经过醚化或酯化的Micheliolide(MCL)衍
生物,并评估其对不同急性髓性白血病(
AML)
细胞系的活性。这些衍
生物对
AML
细胞系HL-60及
多柔比星耐药
细胞系HL-60/A表现出了相当的活性。至于多药耐药
AML祖细胞KG-1a,MCL及其某些衍
生物维持了显著的活性,与对HL-60的活性相比,仅观察到1.1-2.7倍的活性减少,而
多柔比星则显示出20倍的活性减少。我们的研究表明,MCL的C4羟基不仅是结构修饰的合适位置,也是设计合适分子探针以探索KG-1a祖
细胞系中特定靶标的起点。