Synthesis and Biological Activity of Phosphonate Analogues and Geometric Isomers of the Highly Potent Phosphoantigen (<i>E</i>)-1-Hydroxy-2-methylbut-2-enyl 4-Diphosphate
作者:Angélique Boëdec、Hélène Sicard、Jean Dessolin、Gaëtan Herbette、Sophie Ingoure、Cédric Raymond、Christian Belmant、Jean-Louis Kraus
DOI:10.1021/jm701101g
日期:2008.3.1
activated by nonpeptide phosphorylated molecules (so-called phosphoantigens) produced by organisms responsible for causing a broad range of infectious diseases. gammadelta-T-cells are also activated by synthetic phosphoantigens and are cytotoxic to tumor cells. Here we report the synthesis, NMR characterization, and comparative biological evaluation of new pyrophosphate, phosphonate, and pyrophosphonate
γ-T淋巴细胞有助于先天免疫,并被负责引起多种传染病的生物体所产生的非肽磷酸化分子(所谓的磷酸抗原)选择性激活。γ-T细胞也被合成的磷酸抗原激活,并对肿瘤细胞具有细胞毒性。在这里,我们报告了新的焦磷酸酯,膦酸酯和焦磷酸酯单酯的合成,NMR表征和比较生物学评估,这些酯的结构对应于强效类异戊二烯代谢物(E)-1-羟基-2-甲基丁-2-的立体异构体和立体异构体称为HDMAPP(羟基-二甲基-烯丙基焦磷酸酯)的烯丙基4-二磷酸酯。焦磷酸盐和焦磷酸盐系列都在体外引发有希望的伽玛δ-T细胞刺激反应,焦磷酸酯(C-HDMAPP)远比其母体焦磷酸酯(HDMAPP)稳定,具有改进的ADMET特性,并且基于在非人类灵长类动物体内的研究,药效学特征相似。在这两个系列中,我们发现E-立体异构体是活性最高的衍生物,Z-立体异构体的生物活性水平非常低。这些结果表明,使用HDMAPP的生物立体异构体类似物可能代表了免疫治疗的有希望的新线索。