鼻咽癌组织中梭形癌细胞具有上皮-间充质转化及肿瘤干细胞特性

被引:5
作者
罗伟仁 [1 ,2 ]
姚开泰 [2 ]
机构
[1] 广东医学院病理学教研室
[2] 南方医科大学肿瘤研究所
关键词
鼻咽肿瘤; 梭形癌细胞; 上皮-间充质转化; 肿瘤干细胞;
D O I
10.13315/j.cnki.cjcep.2013.07.019
中图分类号
R739.63 [咽肿瘤];
学科分类号
100214 ;
摘要
目的探讨鼻咽癌组织中梭形癌细胞是否具有上皮-间充质转化(epithelial-mesenchymal transition,EMT)和肿瘤干细胞(cancer stem cells,CSCs)特性。方法以33例鼻咽慢性炎组织作为正常对照,采用免疫组化SP法检测98例鼻咽癌组织梭形癌细胞中E-cadherin、N-cadherin、vimentin、OCT4、SOX2和ALDH1的表达。结果与鼻咽慢性炎组织相比,鼻咽癌组织中梭形癌细胞上皮标志物蛋白E-cadherin明显下调(P<0.001),而间叶标志物蛋白N-cadherin和vimentin明显上调(P均<0.001)。梭形癌细胞中E-cadherin与N-cadherin(P=0.020)和vimentin(P=0.001)的表达呈明显负相关。与鼻咽慢性炎组织相比,鼻咽癌组织中梭形癌细胞中CSCs标志物OCT4、SOX2和ALDH1蛋白明显升高(P均<0.001),二者差异有统计学意义。此外,梭形癌细胞中E-cadherin与OCT4(P=0.029)及ALDH1(P=0.000)的表达均呈负相关。结论鼻咽癌组织中梭形癌细胞具有EMT及CSCs特性,可作为判断转移性鼻咽癌的形态学指标。
引用
收藏
页码:708 / 712
页数:5
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