epothilone b

Epothilone B (EPO 906) 是微管稳定剂，Ki 为0.71 μM。 它与αβ-微管蛋白异二聚体亚基结合，使αβ-微管蛋白解离减少。

Ixabepilone (Azaepothilone B) 是一种可口服的微管抑制剂，能够与微管蛋白结合，促进微管蛋白的聚合和微管的稳定，使细胞停滞在 G2-M 期，诱导细胞凋亡。

BMS 310705 (21-Aminoepothilone B) 是 Epothilone B 的类似物，靶向卵巢癌、肾癌、膀胱癌和肺癌等恶性肿瘤。BMS 310705 通过线粒体介导的途径诱导显着的细胞凋亡 (apoptosis)。

Iso-Fludelone is the third-generation epothilone B analogue with potential anti-mitotic and antineoplastic activites. Iso-fludelone binds to tubulin and induces microtubule polymerization and stabilizes microtubules against depolymerization, which may result in the inhibition of cell division, the induction of G2 M arrest, and apoptosis. Compared to other generations of epothilones, iso-fludelone exhibits increased stability, water solubility, potency, duration of action, tumor penetration as well as reduced toxicity. In addition, this agent is a not a substrate of the P-glycoprotein (P-gp), a multidrug resistance pump often overexpressed in cancer cells. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus).