Thailanstatin A 是一种有效的真核 RNA 剪接 (RNA splicing) 抑制剂 (IC50=650 nM)。Thailanstatin A 通过非共价结合到剪接体的 U2 snRNA 亚复合物的 SF3b 亚单位发挥作用，并且对多种癌细胞系显示低 nM 到亚 nM 的 IC50 值。Thailanstatin A 与 Trastuzumab 上的赖氨酸结合，可产生"无连接子 (linker-less)" ADC。
货号:ajcx33426
CAS:1426953-21-0
分子式:C28H41NO9
分子量：535.63
溶解度:DMSO : 250 mg/mL (466.74 mM; Need ultrasonic)
纯度：98%
存储：Store at -20°C
库存：现货

Background:

Thailanstatin A is an ultra-potent inhibitor of eukaryotic RNA splicing (IC50=650 nM). Thailanstatin A exerts effects via non-covalent binding to the SF3b subunit of the U2 snRNA subcomplex of the spliceosome and shows low-nM to sub-nM IC50s against multiple cancer cell lines. Thailanstatin A, a payload for ADCs, is conjugated to the lysines on trastuzumab yielding "linker-less" ADC[1][2][3].

Thailanstatin A (TST-A) is a potent antiproliferative natural product discovered by our group from Burkholderia thailandensis MSMB43[2].Thailanstatin A (DU-145, NCI-H232A, MDA-MB-231 and SKOV-3 cells) exhibits potent antiproliferative activities with GI50s in the single nM range (1.11-2.69 nM)[3].

[1]. Puthenveetil S, et al. Natural Product Splicing Inhibitors: A New Class of Antibody-Drug Conjugate (ADC) Payloads. Bioconjug Chem. 2016;27(8):1880-1888.
[2]. Ghosh AK, et al. Enantioselective Synthesis of Thailanstatin A Methyl Ester and Evaluation of in Vitro Splicing Inhibition. J Org Chem. 2018;83(9):5187-5198.
[3]. Liu X, et al. Genomics-guided discovery of thailanstatins A, B, and C As pre-mRNA splicing inhibitors and antiproliferative agents from Burkholderia thailandensis MSMB43. J Nat Prod. 2013;76(4):685-693.