原发性肝细胞癌肝外转移与循环肿瘤细胞的关系

目的 研究原发性肝细胞癌肝外转移与外周血肝癌细胞的关系.方法 收集2005年10月至2006年12月收治的30例原发性肝细胞癌患者术前及手术结束时的外周血标本.并收集10名健康志愿者的外周血作为对照.采用免疫磁珠的方法,富集、分离肝癌患者术前、术后外周血中的癌细胞;随访观察术后患者肝外转移与外周血肝癌细胞的关系.结果 免疫磁珠技术可以富集分离到肝癌患者外周血中游离癌细胞,经甲胎蛋白免疫组化证实为肝细胞癌细胞.30例肝癌患者术前和术后外周血肝癌细胞阳性率分别是53.3%和83.3%,两者差异有统计学意义(P<0.05);术前外周血肝癌细胞阳性与肝外转移发生密切相关;外周血癌肝细胞浓度低于1×10~3个/L者未发现肝外转移.结论 原发性肝细胞癌患者肝外转移与术前外周血肝癌细胞阳性率及肝癌细胞浓度有关.

Relationship between extrahepatic metastasis of primary hepatocellular carcinoma and circulative tumor cells in the blood of hepatoma patients

Objective To study the relationship between extrahepatic metastasis of primary hepatocellular carcinoma and circulative tumor cells in the blood of hepatoma patients. Methods The immunomagnetic bead technique was employed to enrich and separate the hepatoma cells in the peripheral blood of preoperative and postoperative hepatoma patients. The relationship between postoperative extrahepatic metastasis and hepatoma cells in peripheral blood cancer cells were analyzed. The circulative tumor cells in the peripheral blood of hepatoma patients were enriched and separated by immunomagnetic bead technique. They were identified as hepatoma cells by AFP immunohistochemistry. Among 30 cases of hepatoma patients, the positive rate of hepatoma cells in the peripheral blood of preoperation and postoperation were 53. 3% and 83. 3% respectively. There was difference significantly in positive cases before operation and after operation (P < 0. 05 ). Conclusions Extrahepatic metastasis of primary hepatocellular carcinoma is obviously correlated to the positive tumor cells and the concentration in the peripheral blood of preoperative patients.