Microwave Synthesis and Evaluation of Phenacylhomoserine Lactones as Anticancer Compounds that Minimally Activate Quorum Sensing Pathways in <i>Pseudomonas aeruginosa</i>
作者:Colin M. Oliver、Amy L. Schaefer、E. Peter Greenberg、Janice R. Sufrin
DOI:10.1021/jm8015377
日期:2009.3.26
compromises further consideration as a potential anticancer agent. In search of acylhomoserine lactones that selectively inhibit cancer cell growth, a library of phenacylhomoserine lactone analogues has been prepared by microwave synthesis and evaluated for cancer growth inhibition and quorum sensing activation. Comparative SAR analysis demonstrates that both anticancer and QS signaling systems require long
细菌群体感应(QS)信号分子3-氧代-十二烷酰基-1-高丝氨酸内酯(OdDHL)由机会病原体铜绿假单胞菌产生,并控制与免疫受损个体中威胁生命的感染相关的毒力因子的表达。OdDHL还显示出抗癌活性,但具有增强铜绿假单胞菌致病性的能力。作为潜在的抗癌药,需要进一步考虑。为了寻找选择性抑制癌细胞生长的酰基高丝氨酸内酯,已通过微波合成制备了苯甲基高丝氨酸内酯类似物的文库,并评估了其对癌症生长的抑制作用和群体感应激活。SAR对比分析表明,抗癌和QS信号系统均需要长酰基侧链,并带有3-氧代取代基才能发挥最大活性。化合物12b 3-氧代-12-苯基十二烷酰基-1-高丝氨酸内酯被鉴定为具有强大的癌症生长抑制活性的前导化合物,该活性使铜绿假单胞菌报道基因分析中QS信号通路的激活最小化。