Synthesis and immunological evaluation of <i>N</i>-acyl modified Globo H derivatives as anticancer vaccine candidates
作者:Canjia Zhai、Xiu-Jing Zheng、Chengcheng Song、Xin-Shan Ye
DOI:10.1039/d1md00067e
日期:——
These modified GloboH derivatives were then conjugated with carrier protein CRM197 to form glycoconjugates as anticancervaccine candidates, which were used in combination with adjuvant glycolipid C34 for immunological studies. The immunological effects of these syntheticvaccine candidates were evaluated on Balb/c mice. The results showed that the fluorine-modified N-acyl GloboH conjugates can induce
Globo H 是一种肿瘤相关碳水化合物抗原 (TACA),是抗肿瘤疫苗或癌症免疫疗法的重要靶标。然而,大多数 TACA 不依赖于 T 细胞,由于其免疫原性较差,无法诱导强大的免疫反应。为了解决这个问题,本文通过基于预激活的从非还原端到还原端的糖基化策略制备了几种对N-酰基进行修饰的Globo H类似物。然后将这些修饰的 Globo H 衍生物与载体蛋白 CRM197 缀合,形成糖缀合物作为抗癌疫苗候选物,与佐剂糖脂 C34 联合用于免疫学研究。在 Balb/c 小鼠上评估了这些合成候选疫苗的免疫学效果。结果表明,氟修饰的N-酰基Globo H缀合物可以诱导更高滴度的IgG抗体,该抗体可以识别癌细胞表面天然存在的Globo H抗原,并且可以在补体存在的情况下消灭癌细胞,这表明这些合成糖复合物作为抗癌疫苗候选者的潜力。
Novel Guanidine-Containing Molecular Transporters Based on Lactose Scaffolds: Lipophilicity Effect on the Intracellular Organellar Selectivity
synthesized two lactose-based moleculartransporters, each containing seven guanidine residues attached to the lactose scaffold through omega-aminocarboxylate linker chains of two different lengths, and have examined their cellular uptakes and intracellular and organellar localizations in HeLa cells, as well as their tissue distributions in mice. Both moleculartransportersshowed higher cellular uptake efficiencies