5-氟脲嘧啶腹腔化疗预防裸鼠人结肠癌细胞肝转移研究

目的探索预防大肠癌根治术后肝转移局部区域性辅助化疗新途径.方法利用裸鼠人结肠癌细胞肝转移模型观察术后早期大剂量大容积5-氟脲嘧啶腹腔化疗预防裸鼠经睥接种的人结肠癌细胞肝转移的疗效.结果术后早期5-氟脲嘧啶40 mg/生理盐水40 ml/kg,1次/d,连续2 d 的腹腔化疗可使裸鼠肝转移发生率降低40%,平均每只裸鼠肝转移瘤数目减少50.89%,平均每只裸鼠生存时间延长48.21%.结论腹腔化疗是一个预防大肠癌根治术后肝转移有效的辅助化疗新途径.

Prevention of metastasis to liver by using 5-FU intraperitoneal chemotherapy in nude mice inoculated with human colonic cancer cells

AIMS Using a new approach of regional adjuvant chemotherapy to prevent cancer cells hepatic metasta- sis after radical surgery of large bowel cancer. METHODS A model of liver with metastasis of hu- man colonic cancer (HCC) cells in nude mice was used to observe the effect in prevention of metastasis of HCC cells inoculated via spleen applied with early postoper- ative intraperitoneal (IP) chemotherapy using large dose of 5-FU. RESULTS The incidence of metastasis to liver was decreased by 40%,the mean number of metastatic liv- er nodules in each animal was reduced by 50.89% and the mean survival times of each animal was prolonged by 48.21% by using 5-FU 40 mg/NS 40 ml/kg IP for two consecutive days as compared with the controls. CONCLUSIONS IP is a new and more effective re- gional adjuvant chemotheraputic approach in the pre- vention of liver metastasis HCC cells after radical surgery of large bowel cancer.