摘要
目的 探索应用1 31 I标记抗CEA单抗治疗结肠腺癌肝转移后对荷瘤裸鼠血清、腹水和癌组织中CEA水平的影响。方法 在建立人结肠腺癌裸鼠肝转移后 10min(早期治疗组 )、10d(中期治疗组 )、2 0d(晚期治疗组 )经尾静脉注射1 31 I标记抗CEA单抗 ;并以模型建立后经尾静脉注射1 31 I标记的正常小鼠IgG作为对照组。于接种癌细胞 4周后 ,采集血、腹水和癌结节 ,分别检测其CEA含量。结果 早期治疗组的血、腹水和癌结节中CEA水平均明显低于对照组 (P <0 .0 1) ;早期治疗组与晚期治疗组则无显著性差异 (P >0 .0 5 )。结论 早期应用1 31 I标记抗CEA单抗能有效地降低荷瘤裸鼠的血清。
Objective To investigate the changes of CEA levels of blood, ascites and cancer tissue in nude mice with liver metastases from colon adenocarcinoma treated by 131 I labeled anti CEA monoclonal antibody (McAb). Methods 131 I labeled anti CEA McAb was injected through tail vein at 10min(early treatment group), 10d(middle treatment group) and 20d(late treatment group) after the liver metastases were established respectively. 131 I-labeled anti-normal mice IgG was injected through tail vein after the liver metastatic model was estabished as a control group. Results The CEA levels of blood, ascites and cancer tissue in early treatment group were significantly decreased compared with the control group (P<0.01); but, there was no difference between the early treatment group and the late treament group (P>0.05). Conclusions The CEA levels of blood, ascites and cancer nodulus in nude mice with liver metastases from colon cancer could be lowered significantly when the 131 I labeled anti CEA McAb is used early after the liver metastasis is established.
出处
《中国普通外科杂志》
CAS
CSCD
2001年第3期244-246,共3页
China Journal of General Surgery
基金
全军留学回国人员基金 !(1998)
关键词
放射免疫疗法
单克隆抗体
结肠腺癌
治疗
COLON NEOPLASMS/ther
ADENOCARCENOMA/ther
RADIOIMMUNO THERAPY
ANTIBODIES, MONOCONAL
CEA/anal
LIVERNEOPLASMS/second
