Control of the cytotoxicity of dansylated polytheonamide mimic, an artificial peptide ion channel, by modification of the N-terminal structure
作者:Hiroaki Itoh、Shoko Matsutaka、Takefumi Kuranaga、Masayuki Inoue
DOI:10.1016/j.tetlet.2013.12.007
日期:2014.1
dansylated polytheonamide mimic (2) is controlled by chemical modification of its N-terminal structure. Dansylated polytheonamide mimic (2) is an ion channel peptide which displays potent cytotoxicity against P388 mouse leukemia cells (IC50 = 12 nM). To modulate its cytotoxicity, three analogues of 2, possessing distinct N-terminal structures with different hydrophobicities, were synthesized and their
我们证明了,通过化学修饰其N末端结构来控制dansylated polytheonamide mimic(2)的细胞毒性。丹磺酰化的polytheonamide模拟物(2)是一种离子通道肽,对P388小鼠白血病细胞表现出强大的细胞毒性(IC 50 = 12 nM)。为了调节其细胞毒性,合成了具有不同疏水性的具有不同N末端结构的2的三个类似物,并评估了它们的细胞毒性。这项重点研究的结构-活性关系研究揭示了2的细胞毒性。只需将其N端5,5-二甲基-2-氧己酰胺更改为疏水性更强的棕榈酰胺,即可将其增强十倍。此处获得的数据为人工离子通道肽2的功能控制提供了新的认识。