Reaction mechanisms of allicin and allyl-mixed disulfides with proteins and small thiol molecules
作者:Talia Miron、Irving Listowsky、Meir Wilchek
DOI:10.1016/j.ejmech.2010.01.031
日期:2010.5
are expected to initially interact with glutathione. Accordingly, reaction mechanisms of the product, S-allylthio-glutathione, with model proteins and thiols were analyzed in cell free systems. With glutathionyl, cysteinyl or captopril representing S-allyl aliphatic adducts, the reaction with sulfhydryl groups resulted in mixed disulfide mixtures, formed by both, S-allyl and aliphatic moieties. To improve
大蒜中的烯丙基硫化物是化学预防剂。预期进入的细胞最初会与谷胱甘肽相互作用。因此,在无细胞系统中分析了产物S-烯丙基硫代谷胱甘肽与模型蛋白和硫醇的反应机理。以谷胱甘肽,半胱氨酰基或卡托普利代表S-烯丙基脂族加合物,与巯基的反应产生由S-烯丙基和脂族部分两者形成的混合二硫化物混合物。 为了改善常规的血压前药治疗,癌症和肠道炎症合成了S-烯丙基硫代前药,例如S-烯丙基硫代6-巯基嘌呤和S-烯丙基硫代-卡托普利。2种成分的协同活性以及增加的细胞渗透性允许有效的体内活性。这些衍生物与谷胱甘肽反应后,形成S-烯丙基硫代-谷胱甘肽,而6-巯基嘌呤为离去基团。过量的细胞谷胱甘肽使巯基-二硫键交换反应发生数个周期,从而扩展了杂合药物的药效学。