Structure–Reactivity Relationships on Substrates and Inhibitors of the Lysine Deacylase Sirtuin 2 from <i>Schistosoma mansoni</i> (<i>Sm</i>Sirt2)
作者:Daria Monaldi、Dante Rotili、Julien Lancelot、Martin Marek、Nathalie Wössner、Alessia Lucidi、Daniela Tomaselli、Elizabeth Ramos-Morales、Christophe Romier、Raymond J. Pierce、Antonello Mai、Manfred Jung
DOI:10.1021/acs.jmedchem.9b00638
日期:2019.10.10
vitro screening of the GSK Kinetobox library and structure–activity relationships of identified hits led to the first SmSirt2 inhibitors with activity in the low micromolar range. Several SmSirt2 inhibitors showed potency against both larval schistosomes (viability) and adult worms (pairing, egg laying) in culture without general toxicity to human cancer cells.
目前可用于治疗被忽视的血吸虫病的唯一药物是吡喹酮,耐药性的出现使得对新型治疗剂的研究变得必要和紧迫。为此,靶向曼氏血吸虫表观遗传酶(其调节寄生虫的生命周期)作为一种有前途的方法应运而生。由于人类sirtuin抑制剂对寄生虫存活和繁殖的强烈影响,血吸虫sirtuins被认为是潜在的治疗靶标。曼氏沙门氏菌sirtuin 2(Sm Sirt2)的合成底物的体外测试和肉豆蔻酰化肽的动力学实验证明赖氨酸长链脱酰作用是固有的SmSirt2活性除其首次已知的脱乙酰基酶活性外。对GSK Kinetobox文库进行集中的体外筛选以及已确定的基因敲击物的构效关系,导致了首批具有低微摩尔范围活性的Sm Sirt2抑制剂。几种Sm Sirt2抑制剂在培养中显示出对幼虫血吸虫(存活力)和成虫(配对,产卵)的效力,而对人癌细胞没有一般毒性。