Synthesis of truncated analogues of the iNKT cell agonist, α-galactosyl ceramide (KRN7000), and their biological evaluation
作者:Natacha Veerapen、Faye Reddington、Mariolina Salio、Vincenzo Cerundolo、Gurdyal S. Besra
DOI:10.1016/j.bmc.2010.11.032
日期:2011.1
of iNKT cells by α-galactosyl ceramide (α-GalCer), also known as KRN7000, and its truncated analogue OCH induces both Th1- and Th2-cytokines, with OCH inducing a Th2-cytokine bias. Skewing of the iNKT cells’ response towards either a Th1- or Th2-cytokine profile offers potential therapeutic benefits. The length of both the acyl and the sphingosine chains in α-galactosyl ceramides is known to influence
α-半乳糖基神经酰胺 (α-GalCer)(也称为 KRN7000)及其截短的类似物 OCH对i NKT 细胞的刺激诱导 Th1 和 Th2 细胞因子,而 OCH 诱导 Th2 细胞因子偏向。i NKT细胞对 Th1 或 Th2 细胞因子谱的反应的倾斜提供了潜在的治疗益处。已知 α-半乳糖神经酰胺中的酰基链和鞘氨醇链的长度会影响细胞因子的释放曲线。我们合成了具有截短鞘氨醇链的 α-GalCer 类似物,用于生物学评估,特别强调 Th1/Th2 分布。从常见的前体d-来苏糖开始,鞘氨醇衍生物通过直接的 Wittig 缩合合成。