Relative impact of 3- and 5-hydroxyl groups of cytosporone B on cancer cell viability
作者:Zebin Xia、Xihua Cao、Elizabeth Rico-Bautista、Jinghua Yu、Liqun Chen、Jiebo Chen、Andrey Bobkov、Dieter A. Wolf、Xiao-Kun Zhang、Marcia I. Dawson
DOI:10.1039/c2md20243c
日期:——
A novel and the shortest route, thus far, for preparing cytosporone B (Csn-B) is reported. Csn-B and two analogs were used to probe the importance of hydroxyl groups at the 3- and 5-positions of the Csn-B benzene ring in inhibiting the viability of human H460 lung cancer and LNCaP prostate cancer cells, inducing H460 cell apoptosis, and interacting with the NR4A1 (TR3) ligand-binding domain (LBD). These studies indicate that Csn-B and 5-Me-Csn-B, having a phenolic hydroxyl at the 3-position of their aromatic rings, had similar activities in inhibiting cancer cell viability and in inducing apoptosis, whereas 3,5-(Me)2-Csn-B was unable to do so. These results are in agreement with ligand-binding experiments showing that the interaction with the NR4A1 LBD required the presence of the 3-hydroxyl group.
报告了迄今为止制备细胞分裂素 B(Csn-B)的一种新颖、最短的路线。研究人员利用 Csn-B 和两种类似物来探究 Csn-B 苯环 3 位和 5 位羟基在抑制人类 H460 肺癌细胞和 LNCaP 前列腺癌细胞活力、诱导 H460 细胞凋亡以及与 NR4A1(TR3)配体结合域(LBD)相互作用方面的重要性。这些研究表明,Csn-B 和 5-Me-Csn-B 在其芳香环的 3 位上有一个酚羟基,它们在抑制癌细胞活力和诱导细胞凋亡方面具有相似的活性,而 3,5-(Me)2-Csn-B 则无法抑制癌细胞活力和诱导细胞凋亡。这些结果与配体结合实验一致,实验表明,与 NR4A1 LBD 的相互作用需要 3- 羟基的存在。