Synthesis and structure-activity relationships of cerebroside analogues as substrates of cerebroside sulphotransferase and discovery of a competitive inhibitor
作者:Wenjin Li、Joren Guillaume、Younis Baqi、Isabell Wachsmann、Volkmar Gieselmann、Serge Van Calenbergh、Christa E. Müller
DOI:10.1080/14756366.2020.1791841
日期:2020.1.1
competitive CST inhibitors, we synthesised and investigated analogues of the substrate galactosylceramide with variations at the anomeric position, the acyl substituent and the carbohydrate moiety, and investigated their structure–activity relationships. While most of the compounds behaved as substrates, α-galactosylceramide 16 was identified as the first competitive CST inhibitor. Compound 16 can
摘要 异色性白细胞营养不良(MLD)是一种罕见的遗传性疾病,其特征是芳基硫酸酯酶A酶功能异常,导致溶酶体积累脑苷脂硫酸盐(硫酸盐),导致患者随后发生脱髓鞘。半乳糖基神经酰胺(脑苷脂)磺基转移酶(CST)催化硫酸基团从3'-磷酸腺苷-5'-磷酸酯(PAPS)向脑苷脂的转移,产生硫化物。有人提出通过抑制CST对芳基硫酸酯酶A进行底物还原疗法是一种有前途的治疗方法。为了鉴定竞争性CST抑制剂,我们合成并研究了底物半乳糖基神经酰胺的类似物,其端基异构体位置,酰基取代基和碳水化合物部分均存在差异,并研究了它们的结构-活性关系。16被确定为第一种竞争性CST抑制剂。化合物16可以用作开发用于治疗这种破坏性疾病的药物MLD的新的先导结构,目前尚无小分子疗法。