Taccalonolide A 是一种微管稳定剂，是从 Tacca chantrieri 中分离得到的类固醇，具有细胞毒性和抗疟活性。Taccalonolide A 能引起 G2-M 期滞留、Bcl-2 磷酸化，并引发细胞凋亡。Taccalonolide A 在体外对过表达 p 糖蛋白 (Pgp)、多药耐药蛋白 7 (MRP7) 的细胞系具有显著的抑制作用，抑制SK-OV-3细胞生长的 IC50 值为 622 nM。
Taccalonolide A is a microtubule stabilizer, which is a steroid isolated from Tacca chantrieri, with cytotoxic and antimalarial activities[1][2]. Taccalonolide A causes G2-M accumulation, Bcl-2 phosphorylation and initiation of apoptosis[1]. Taccalonolide A is effective in vitro against cell lines that overexpress P-glycoprotein (Pgp) and multidrug resistance protein 7 (MRP7), with an IC50 of 622 nM for SK-OV-3 cells[3]. microtubule[1]
[1]. Tinley TL, et al. Taccalonolides E and A: Plant -derived steroids with microtubule-stabilizing activity. Cancer Res. 2003 Jun 15;63(12):3211-20. [2]. Risinger AL, et al. Taccalonolides: Novel microtubule stabilizers with clinical potential. Cancer Lett. 2010 May 1;291(1):14-9. [3]. Risinger AL, et al. The taccalonolides: microtubule stabilizers that circumvent clinically relevant taxane resistance mechanisms. Cancer Res. 2008 Nov 1;68(21):8881-8.
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