Taccalonolide B 是从 Tacca plantaginea 中分离得到的微管稳定剂，具有抗肿瘤活性。Taccalonolide B 在体外对过表达 p 糖蛋白 (Pgp) 和多药耐药蛋白 (MRP7) 的细胞系具有显著的抑制作用。Taccalonolide B 抑制 SK-OV-3 细胞生长的 IC50 值为 208 nM。
CAS：108885-69-4
分子式：C34H44O13
分子量：660.71
纯度：98%
存储：Store at -20°C

Background:

Taccalonolide B is microtubule stabilizer isolated from Tacca plantaginea, with antitumor activity. Taccalonolide B is effective in vitro against cell lines that overexpress P-glycoprotein (Pgp) and multidrug-resistance protein (MRP7). Taccalonolide B inhibits growth of SK-OV-3 cells with an IC50 of 208 nM[1][2]. microtubule[2]

[1]. LiangChen Zhong, et al. Steroidal bitter principles from tacca plantaginea structures of taccalonolide A and B. Tetrahedron Letters. 1987, 28(15): 1673-1675. [2]. Risinger AL, et al. The taccalonolides: microtubule stabilizers that circumvent clinically relevant taxane resistance mechanisms. Cancer Res. 2008 Nov 1;68(21):8881-8.