activates T cells. To assess the role of the position of the sulfate in T cell activation, the synthesis of three beta-D-galactosylceramides, variously bearing a sulfate at position 2, 4, or 6 of galactose, has been planned and carried out. The compounds were synthesized by an orthogonal sulfation strategy from a common beta-D-galactosylceramide scaffold, which was in turn obtained through an efficient glycosylation
CD1a蛋白与
硫化物(3-O-磺基-β-
D-半乳糖基神经酰胺)结合形成抗原复合物,该复合物与T细胞受体相互作用并激活T细胞。为了评估
硫酸盐的位置在T细胞活化中的作用,已经计划并进行了三种在半
乳糖的2、4或6位带有
硫酸盐的β-
D-半乳糖基神经酰胺的合成。这些化合物是通过正交
硫酸化策略从常见的β-
D-半乳糖基神经酰胺支架合成的,该支架依次通过完全正交保护的半
乳糖亚
氨酸半
乳糖苷和3-O-苯甲酰基
叠氮鞘氨醇之间的有效糖基化反应获得。与天然
硫化物相比,三种
硫酸化化合物在CD1a介导的T细胞活化中的免疫学评估,