摘要
目的 研究干扰素α对结肠癌生长和转移的抑制作用。方法 完整结肠癌组织块裸鼠结肠肠壁原位种植 ,建立类似于临床的结肠癌转移模型。种植后第 7天开始腹腔内注射生理盐水 (对照组 ) ,5 -氟尿嘧啶 ( 5 FU组 ) ,干扰素α 2b(IFNα 2b组 ) ,5 FU和干扰素α 2b配伍使用 (合用组 ) ,共用 8周。第 9周处死裸鼠 ,测定肿瘤重量、抑瘤率、肿瘤微血管密度和肝转移情况。结果 对照组、5 FU组、干扰素α 2b组和合用组的瘤重依次为 ( 1.5 3± 0 .78)g ,( 0 .87± 0 .5 9)g ,( 0 .81± 0 .43 )g和( 0 .2 3± 0 .0 9)g ,抑瘤率依次为 0 % ,43 .1% ,47.1%和 84.9%。肝脏转移率依次为 85 .7% ,78.6% ,2 1.4%和 0 %。干扰素α组和合用组的微血管密度明显低于其他各组。结论 干扰素α通过抗肿瘤血管生成 ,能明显抑制结肠癌的生长和肝转移 ,且和细胞毒性药物合用疗效更明显。
Objective To determine the inhibitive effect of interferon-a on hepatic metastasis of colon cancer. Methods Metastatic model of human colon cancer was established by orthotopic implantation of histologically intact human tumor tissue into the colon wall of nude mice.The mice were randomly divided into 4 groups:(1)Control group(receiving saline solution only);(2)5-FU treatment group;(3) IFN-α-2b treatment group;and(4)5-FU combined with IFN-α-2b treatment group(combined group). 5-FU and IFN-α-2b were given via peritoneum injection 1 time/2 days for eight weeks.The mice were killed at nine weeks.The tumors were weighed,the microvessel density(MVD) was detected,and the liver was examined histologically in order to discover the micrometastasis. Results In control group, 5-FU group,IFN-2b group and combined group,the tumor weight was(1.53±0.78)g,(0.87±0.59)g,(0.81±0.43)g and ( 0.23±0.09)g, respectively;the tumor inhibition rate was 0,43.1%,47.1% and 84.9%, respectively;the hepatic metastasis rate was 85.7%,78.6%,21.4% and 0 respectively.MVD in IFN-α group and combined group was significant lower than that in control group and 5-FU group. Conclusions IFN-α can inhibit the growth and hepatic metastasis of orthotopic implanted human colon cancer by inhibiting the tumor angiogenesis.It may be more effective when INF-α combined with cyotoxic agents.
出处
《中国普通外科杂志》
CAS
CSCD
2003年第11期812-814,共3页
China Journal of General Surgery
