鲁吡替康致突变性研究  

Study on the Mutagenesis of Rubitecan

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作  者:马国建[1] 陈森清[1] 高凌[2] 张琴芬[2] 亢寿海[2] 徐荣华[2] 薛开先[1] 

机构地区:[1]江苏省肿瘤防治研究所遗传学研究室,江苏南京210009 [2]江苏省肿瘤防治研究所药物学研究室,江苏南京210009

出  处:《癌变.畸变.突变》2007年第2期149-151,共3页Carcinogenesis,Teratogenesis & Mutagenesis

摘  要:背景与目的:研究鲁吡替康(9NC)的致突变作用。材料与方法:采用微核实验,研究9NC体外对人淋巴细胞和体内对小鼠骨髓嗜多染红细胞(polychromatic erythrocytes,PCE)的诱变作用;采用小鼠抑瘤实验,研究9NC对小鼠移植瘤S180和Heps的肿瘤抑制作用。结果:9NC分别在体外≤0.187μg/ml及体内≤0.375mg/kg剂量范围内,不诱发人淋巴细胞微核和小鼠骨髓PCE微核的增加(P>0.05),但对小鼠移植瘤S180(肉瘤)和Heps(肝癌)有抑制作用;在剂量≥0.25μg/ml(体外)和≥0.75mg/kg(体内)时,9NC可引起人外周血淋巴细胞微核和小鼠骨髓PCE微核的显著增加(P<0.01),有明显的遗传毒性。结论:9NC在最大安全耐受剂量内具备致突变性。BACKGROUND & AIM: To study the mutagenesis of Rubitecan (9NC). MATERIALS AND METHODS: The micronucleus test in human lymphocytes (in vitro ) and in bone marrow PCE of mice (in vivo) were used. Induction of transplantated tumor in mice with 9NC was observed. RESULTS: 9NC had no mutagenicity in human lymphocytes within 0-0. 187μg/ml and no mutagenicity to murine bone marrow PCE within 0-0.375 mg/kg body weight (P 〉 0.05), but could inhibit the growth of transplantated tumor Hpes (heptome) and S180 (sarcoma) in mice. Mutagenic effects of 9NC was found with dosages of ≥0.25 μg/ml (in vitro) and ≥0.75 mg/kg body weight (in vivo). CONCLUSION: 9NC demonstrated mutatgenic effects at different dose ranges.

关 键 词:鲁吡替康(9NC) 致突变 微核实验 

分 类 号:R979.1[医药卫生—药品]

 

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