SU6668抑制结肠癌生长和转移的实验研究  

Inhibition of growth and metastasis of human colon cancer by SU6668 in a nude mouse model

作　　者：张国锋[1] 王元和[1] 王强[1] 张明敖[2] 韩策然[2] 饶应阳[2] 

机构地区：[1]第二军医大学长征医院普外科,上海200003 [2]上海浦东新区人民医院普外科

出　　处：《中华普通外科杂志》2002年第7期407-409,共3页Chinese Journal of General Surgery

基　　金：上海浦东新区科技专项基金资助 (PK 2 0 0 1 11)

摘　　要：目的研究血管生成抑制剂SU6 6 6 8对结肠癌生长和转移的抑制作用。方法建立人结肠癌裸鼠原位种植转移模型。将荷瘤鼠 4 8只随机分为四组 ,每组 12只。种植 1周后开始 ,分别自腹腔注射生理盐水 (对照组 )、5 氟脲嘧啶 (5 Fu组 )、SU6 6 6 8制剂 (SU6 6 6 8组 )、5 Fu与SU6 6 6 8联合应用(5 Fu +SU6 6 6 8组 ) ,每天 1次 ,共用 5周。种植后第 6周末处死动物 ,测量原位肿瘤瘤重、抑瘤率、肿瘤微血管密度 (MVD)、结肠癌细胞凋亡指数 (AI) ,观察癌细胞转移及腹水出现情况。结果对照组、5 Fu组、SU6 6 6 8组、5 Fu +SU6 6 6 8组抑瘤率分别为 0、4 2 6 %、80 9%、87 2 % ;MVD分别为 (13 8± 5 2 )、(12 3± 4 5 )、(2 4± 1 5 )、(0 9± 0 5 ) ;AI分别为 (3 6± 2 4 ) %、(7 1± 5 7) %、(11 9± 3 9) %、(19 9±8 6 ) % ;腹膜转移率分别为 10 0 %、4 5 5 %、16 7%、0 ;肝转移率分别为 75 0 %、36 4 %、16 7%、0。故SU6 6 6 8组、5 Fu +SU6 6 6 8组结肠癌生长和转移受到明显抑制 (P <0 0 5 ) ,尤以 5 Fu +SU6 6 6 8组最明显(P <0 0 5 )。结论SU6 6 6 8对结肠癌生长和转移具有较强的抑制作用 ,与传统腹腔化疗药物联用可起协同抑制作用。ObjectiveTo study the effects of angiogenesis inhibitor SU6668 on the growth and metastasis of colon cancer in vivo. MethodsMetastatic model of human colon cancer was established by orthotopic implantation of human tumor tissue into colon wall of nude mice. Mice were randomly divided into control, 5 Fu, SU6668, and combined treatment group (both 5 Fu and SU6668 i.p.) respectively. After six weeks tumor weight, inhibition rates, intratumoral microvessel density (MVD), apoptotic index (AI) and metastasis were evaluated. ResultsCompared with control, tumor growth was significantly inhibited in mice treated respectively with 5 Fu, SU6668 and 5Fu plus SU 6668 with an inhibition rate of 0%, 42 6%, 80 9% and 87 2% respectively. MVD decreased significantly in treated groups \[(13 8±5 2)?(12 3±4 5), (2 4±1 5) and (0 9±0 5)\]. AI increased significantly in treated groups \[(3 6±2 4)%? (7 1±5 7)%, (11 9±3 9)% and (19 9±8 6)%\]. The incidences of peritoneal and liver metastases was significantly inhibited in 5 Fu, SU6668 and combined treatment group (100%? 45 5%, 16 7% and 0; 75 0%? 36 4%, 16 7% and 0). The growth and metastasis of human colon cancer implanted in nude mice were significantly inhibited in the SU6668 group and combined group than that in control group and 5 Fu group ( P <0 05). Conclusion SU6668 combined with cytotoxic agents has strong inhibitory effect both on tumor growth and metastasis of human colon cancer.

关 键 词：结肠肿瘤 实验研究 转移 血管生成 血管生成抑制剂 细胞凋亡 

分 类 号：R735.35[医药卫生—肿瘤]