Synthesis and Biological Evaluation of Tripartin, a Putative KDM4 Natural Product Inhibitor, and 1-Dichloromethylinden-1-ol Analogues
作者:Lucía Guillade、Federica Sarno、Hanna Tarhonskaya、Angela Nebbioso、Susana Alvarez、Akane Kawamura、Christopher J. Schofield、Lucia Altucci、Ángel R. de Lera
DOI:10.1002/cmdc.201800377
日期:2018.9.19
this natural product in terms of its effects on cellular histone methylation status. Interestingly, tripartin did not inhibit isolated KDM4A–E under our assay conditions (IC50>100 μm). Tripartin analogues with a dichloromethylcarbinol group derived from the indanone scaffold were synthesized and found to be inactive against isolated recombinant KDM4 enzymes and in cell‐based assays. Although the precise
据报道,天然产物tripartin可抑制N-甲基-赖氨酸组蛋白脱甲基酶KDM4A。从3,5-二甲氧基苯基丙烯酸开始合成三联蛋白,并通过手性HPLC分离对映体。我们观察到,如通过蛋白质印迹分析所测量的那样,当在细胞中给药时,两种三方对映体均表现出H3K9me3水平的明显增加。因此,就其对细胞组蛋白甲基化状态的影响而言,没有对该天然产物的对映体歧视。有趣的是,tripartin不抑制我们的测定条件下分离KDM4A-E(IC 50 > 100μ米)。合成了源自茚满酮骨架的带有二氯甲基甲醇基团的Tripartin类似物,发现在分离的重组KDM4酶和基于细胞的测定中无活性。尽管尚不清楚曲帕汀的确切细胞作用方式,但我们的证据表明,它可能通过直接抑制KDM4组蛋白脱甲基酶以外的其他机制影响组蛋白甲基化状态。