流式细胞术检测结直肠癌根治术前后循环肿瘤细胞和循环肿瘤干细胞及其临床预测价值

被引:7
作者
许扬梅
刘巧珍
刘沁颖
魏晟宏
陈路川
应敏刚
郑秋红
机构
[1] 福建医科大学附属肿瘤医院福建省肿瘤医院国家临床重点肿瘤专科福建省肿瘤生物治疗重点实验室
关键词
结直肠癌; 循环肿瘤细胞; 循环肿瘤干细胞; CD133; CD44; 流式细胞术;
D O I
暂无
中图分类号
R735.34 [];
学科分类号
摘要
目的:探讨流式细胞仪检测结直肠癌根治术前后循环肿瘤细胞(circulating tumor cell,CTC)和循环肿瘤干细胞(circulating tumor stem cell,CTSC)作为患者临床预测指标的可行性和临床价值。方法:入组首诊初治50例结直肠癌患者,手术前后各抽取15 ml外周血。分离单个核细胞后分成两份,一份标记CTC标志物(CD45、Ep CAM和CK),另一份标记CTSC标志物(CD45、Ep CAM、CD44和CD133),Moflo XDP流式细胞仪对其进行检测,CD45-Ep CAM+CK+细胞确定为CTC;CTSC确定为3群:CD44+CTSC、CD133+CTSC和CD44+CD133+CTSC。结果:结直肠癌根治术前患者CTC和CD44+CTSC阳性率分别为34%和44%,CD133+CTSC和CD44+CD133+CTSC是24%和0;术后患者CTC和CD44+CTSC阳性率分别为38%和54%,CD133+CTSC和CD44+CD133+CTSC分别为26%和0。根治术前后CTC阳性率都与肿瘤T分期有关联(P<0.05);术后CTC与肿瘤的浸润深度、淋巴结转移和远处转移有关联(P<0.05);术前CD44+CTSC与肿瘤的浸润深度有关联。结论:根治术前后CTC及术前CD44+CTSC阳性率都具有临床预测指标的可行性和价值,术后CTC阳性率可能是更好的预测指标。
引用
收藏
页码:355 / 361
页数:7
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