摘要
目的检测长春氟宁对微管聚集的作用,并研究长春氟宁体外和体内的抗肿瘤作用。方法用浊度实验检测长春氟宁对微管聚集的抑制作用,并以多株肿瘤细胞和荷瘤小鼠分别研究长春氟宁体外、体内的抗肿瘤作用。结果长春氟宁抑制猪脑中提取的微管的聚集,IC50为2.0μmol·L-1;体外试验,长春氟宁抑制多株瘤细胞的IC50在0.05~2.2μmol·L-1之间;体内试验,长春氟宁剂量依赖性地抑制小鼠不同类型移植肿瘤的生长。长春氟宁体外和体内的药物作用比阳性对照药物长春瑞宾弱,但从最大药物疗效来看,长春氟宁对体内肿瘤生长的抑制率比长春瑞宾大。结论长春氟宁能够抑制微管的聚集,在体外体内均有明显的抗肿瘤作用。
Aim To evaluate inhibitory effects of vinflunine on cellular microtubule assembly, and antitumor effects of virdlunine in vitro and in vivo. Methods Turbidity experiment was conducted to analyze the effects of virdlunine on microtubule assembly. Various tumor cell lines and mice implanted with different tumors were used to study anti-tumor effects of vinflunine in vitro and in vivo, respectively. Results Virdlunine inhibited microtubule assembly with an IC50 value of 2. 0μmol·L^-1. In vitro, vinflunine exhibited significant cytotoxicity on various tumor cell lines with ICs0 values ranging from 0. 05 - 2. 2μmol·L^-1. In vivo vinflunine dose-dependently inhibited different tumor growth in mice. The potency of vinflunine was lower than that of vinorelbine in vitro and in vivo. However, at the dose of the strongest efficacy, vinflunine had more significant activity compared with vinorelbine. Conclusion Vinflunine inhibits cellular microtubule assembly and shows significant antitumor effects both in vivo and in vitro.
出处
《中国药理学通报》
CAS
CSCD
北大核心
2007年第4期507-511,共5页
Chinese Pharmacological Bulletin
关键词
长春氟宁
微管聚集
抗肿瘤作用
长春瑞宾
vinflunine
microtubule assembly
antitu- mor effect
vinorelbine