Synthesis and biological activity of hydroxylated analogues of KRN7000 (α-galactosylceramide)
作者:Masao Shiozaki、Takuya Tashiro、Hiroyuki Koshino、Tomokuni Shigeura、Hiroshi Watarai、Masaru Taniguchi、Kenji Mori
DOI:10.1016/j.carres.2013.01.010
日期:2013.4
focused on the hydroxylated analogues of KRN7000 which could be thought of as increasing hydrophilicity and showing bias to Th2 cytokine (IL-4) secretion. Therefore, they may become the drugs for autoimmune diseases for the following reasons: (i) compound OCH, one of the alpha-galactosylceramide analogues with a shorter sphingosine chain than KRN7000, increases hydrophilicity relative to KRN7000; and (ii)
KRN7000是α-半乳糖基神经酰胺之一,其具有2-六十六烷酰基氨基-3,4-二羟基十八烷基。这种化合物被称为CD1d介导的不变性自然杀伤性T细胞(iNKT细胞)激活的配体,它会同时释放T辅助1(Th1)细胞因子(如IFNgamma)和Th2细胞因子(如IL-4),这是一种抗肿瘤药物。药物,因为它的IFNγ分泌很强。这次,我们重点研究了KRN7000的羟基化类似物,该羟基化类似物可被视为增加亲水性并显示出对Th2细胞因子(IL-4)分泌的偏向。因此,由于以下原因,它们可能成为治疗自身免疫性疾病的药物:(i)化合物OCH(具有比KRN7000短的鞘氨醇链的α-半乳糖基神经酰胺类似物之一)相对于KRN7000增加了亲水性;(ii)与KRN7000相比,已知OCH比来自iNKT细胞的Th1细胞因子诱导的Th2细胞因子(IL-4)多得多。自然地,OCH已成为自身免疫性疾病的候选药物之一。预计KRN