Bocian E, Laverick M, Nias A H
Br J Cancer. 1983 Dec;48(6):803-7. doi: 10.1038/bjc.1983.270.
Sister chromatid exchange (SCE) induction by two radiosensitizing platinum compounds (cis-dichloro-bis isopropylamine trans dihydroxy platinum IV (CHIP) and cis-platinum metronidazole2 Cl2 (FLAP] was studied in CHO cells in vitro. Both drugs induced SCE in a dose dependent manner. CHIP was a much more potent inducer of SCE than FLAP and produced almost 4 times as many SCE as FLAP at equimolar concentrations and twice as many at equitoxic dosage. Induction of SCE by a component of the FLAP molecule--metronidazole--was also examined. It did not cause any increase of SCE frequency over the control level when applied at 10 times the highest concentration of FLAP which was used.
在体外培养的中国仓鼠卵巢(CHO)细胞中,研究了两种放射增敏铂化合物(顺式 - 二氯 - 双异丙胺反式二羟基铂IV(CHIP)和顺铂甲硝唑2 Cl2(FLAP))对姐妹染色单体交换(SCE)的诱导作用。两种药物均以剂量依赖性方式诱导SCE。CHIP诱导SCE的能力比FLAP强得多,在等摩尔浓度下产生的SCE几乎是FLAP的4倍,在等毒性剂量下是FLAP的两倍。还研究了FLAP分子的一个成分甲硝唑对SCE的诱导作用。当以FLAP使用的最高浓度的10倍应用时,它不会使SCE频率比对照水平有任何增加。