A strategy is introduced for enhancing the cellular selectivity of Amphotericin B (AmB) and other classes of membrane-disrupting agents. This strategy involves attaching the agent to a molecular umbrella to minimize the disruptive power of aggregated forms. Based on this approach, AmB has been coupled to a molecular umbrella derived from one spermidine and two cholic acid molecules and found to have antifungal activities approaching that of the native drug. However, in sharp contrast to AmB, the hemolytic activity and the cytotoxcity of this conjugate toward HEK293 T cells have been dramatically reduced.
引入了一种增强
两性霉素 B (AmB) 和其他类型的膜破坏剂的细胞选择性的策略。该策略涉及将药剂附着在分子伞上,以最大限度地减少聚集形式的破坏力。基于这种方法,AmB 与由一个
亚精胺和两个
胆酸分子衍生的分子伞偶联,并发现其具有接近天然药物的抗真菌活性。然而,与 AmB 形成鲜明对比的是,该缀合物对 HEK293 T 细胞的溶血活性和细胞毒性已显着降低。