After analyzing FCM and UV-Vis spectra we speculate that BTW binds with DNA and inhibits the synthesis of nucleic acid, that DNA is the target molecule for BTW.

• 结合FCM和紫外-可见光谱分析，可推断BTW与细胞中DNA结合，抑制癌细胞核酸的生物合成； DNA是BTW作用的标靶。