Synthesis and biological activity of phosphoglycolipids from Thermus thermophilus
作者:Yukari Fujimoto、Kunihiro Mitsunobe、Satoko Fujiwara、Motoko Mori、Masahiro Hashimoto、Yasuo Suda、Shoichi Kusumoto、Koichi Fukase
DOI:10.1039/c3ob40899j
日期:——
opposite configuration at the diacyl glycerol moiety, were also synthesized. The biological activities of the synthesized compounds were elucidated with cytokine inductions (IL-6 and TNF-α). A synthetic phosphoglycolipid with a natural-type diacyl glycerol configuration showed apparent immunostimulatory activity, whereas its diastereomer did not. The present study revealed that the configuration at the
极端嗜热菌Thermus thermophilus在细胞表面具有非常独特的糖脂。嗜热链球菌的酸性免疫刺激性磷酸糖脂首次使用新开发的糖基化方法,使用3-硝基吡啶基(3NPy)和4,6-二甲氧基-1,3,5-三嗪-2-基(DMT)糖苷作为糖基供体进行合成。还合成了磷酸糖脂的类似物,其包括在二酰基甘油部分具有相反构型的非对映异构体。通过细胞因子诱导(IL-6和TNF-α)阐明了合成化合物的生物学活性。具有天然型二酰基甘油构型的合成磷酸糖脂显示出明显的免疫刺激活性,而其非对映异构体则没有。本研究表明,磷酸糖脂的二酰基甘油部分的构型对于免疫刺激很重要,