Inositol phosphates, as important second messengers of signal transduction, regulate many biological functions. However, cell penetration and phospholipase stability could be two main issues faced by inositol phosphate analogues used as lead compounds for drug discovery. Inositol phosphotriester analogues could be more beneficial to diffuse across plasma membrane. In this paper, we describe the design and synthesis of a series of inositol phosphotriester analogues based on phosphatidylinositol, along with the initial antitumor activity analysis. Several compounds exhibited good cytotoxic activity against human cancer cell lines A549, HepG2, MDA-MB-231 and HeLa, especially compound 33 was cytotoxic against all the four cancer cell lines with good IC50 values.
肌醇
磷酸盐作为一种重要的
信号转导第二信使,调控许多
生物学功能。然而,细胞穿透性和
磷脂酶稳定性可能是以肌醇
磷酸盐类似物作为先导化合物进行药物发现时面临的两个主要问题。肌醇
磷酸三
酯类似物可能更有利于穿透细胞膜。本文中,我们描述了一系列基于
磷脂酰肌醇的肌醇
磷酸三
酯类似物的设计与合成,以及初步的抗肿瘤活性分析。几种化合物对A549、HepG2、
MDA-MB-231和HeLa这些人类癌
细胞系表现出良好的细胞毒性,特别是化合物33对全部四种癌
细胞系均显示出细胞毒性,并具有良好的IC50值。