Effects of Some Diethylstilbestrol Metabolites and Analogs on Cytotoxicity and Aneuploidy Induction in Chinese Hamster V79 Cells.
作者:Taiko ODA、Mitsuru WATANUKI、Yumiko SAKAKIBARA、Yoshihiro SATO
DOI:10.1248/bpb.18.1435
日期:——
We have previously reported the inhibitory effects of diethylstilbestrol (1) and optically active indenestrol derivatives on microtubule polymerization in vitro and their disruptive effect on cytoplasmic microtubules and cytotoxicity in cultured Chinese hamster V79 cells. In the present study, the cytotoxicities of (±)-diethylstilbestrol oxide (2), (+)-, (-)-and (±)-monomethyl ethers (4) of 2, (±)-dimethyl ether (5) of 2, diethylstilbestrol pinacolone (3), E, E-dienestrol (6), Z, Z-dienestrol (7), meso-hexestrol (8), a mixture of (1R, 1'S) 4-hydroxyhexestrol and (1R, 1'S) 4'-hydroxyhexestrol (9), and the 4-hydroxy derivative (10) of diethylstilbestrol dimethyl ether were investigated in Chinese hamster V79 cells. The results indicated that the cytotoxic activity of 10 was the strongest of the compounds tested, although its activity was the almost same as that of 1. Moreover, as the activity of (-)-4 was greater than those of 2 and 1 monomethyl ethers, the effect of 4 on cytotoxic activities was elucidated. In conclusion, the present results indicate that the cytotoxic activities of hydroxylated metabolites are greater than those of each mother compound, although epoxidation of 1 leads to a product which can be broken down more readily than the parent compound.
我们曾报道过二乙基己烯雌酚(1)和具有光学活性的茚三酮衍生物在体外对微管聚合的抑制作用,以及在培养的中国仓鼠 V79 细胞中对细胞质微管的破坏作用和细胞毒性。在本研究中,(±)-二乙基芪醇氧化物(2)、2 的(+)-、(-)-和(±)-单甲基醚(4)、2 的(±)-二甲醚(5)、二乙基芪醇频哪酮(3)、E,E-二烯雌酚(6)、Z,Z-二烯雌酚(7)、Z,Z-二烯雌酚(8)、Z,Z-二烯雌酚(9)、Z,Z-二烯雌酚(10)和 Z,Z-二烯雌酚(11)的细胞毒性均低于对照组、在中国仓鼠 V79 细胞中研究了中-己烷雌酚(8)、(1R,1'S)4-羟基己烷雌酚和 (1R,1'S)4'-羟基己烷雌酚的混合物(9)以及二乙基己烷雌酚二甲醚的 4-羟基衍生物(10)。结果表明,尽管 10 的活性与 1 几乎相同,但其细胞毒性活性是所测试化合物中最强的。此外,由于 (-)-4 的活性高于 2 和 1 单甲醚,因此 4 对细胞毒性活性的影响也得到了阐明。总之,本研究结果表明,羟基化代谢产物的细胞毒性活性高于各母体化合物,尽管 1 的环氧化反应产生的产物比母体化合物更容易被分解。