【摘要】 目的探索肿瘤干细胞(CSC)标志物ABCG2、CD44、CD34在鼻咽癌细胞株CNE2、5-8F和6-10B中的表达情况,为选择CSC标志物进行鼻咽癌CSC样研究奠定基础。方法常规培养CNE2、5-8F和6-10B这3种鼻咽癌细胞株,用流式细胞仪检测3种鼻咽癌细胞株中ABCG2、CD44、CD34细胞比例及其交互情况。结果 ABCG2在CNE2、5-8F和6-10B这3种鼻咽癌细胞株中表达率分别为0.1%、18.6%、19.9%;CD44在CNE2、5-8F和6-10B中表达率分别为99.5%、93.2%、99.1%;CD34在CNE2、5-8F和6-10B中表达率分别为0、3.0%、0.1%。在5-8F中,ABCG2+CD44+细胞交互比例为11.6%,ABCG2+CD34+细胞交互比例为0。结论 5-8F和6-10B中CD34+细胞比例与CSC理论中CSC的比例相符。CD34可以作为鼻咽癌CSC的候选标志物。更多还原

【Abstract】 Objective To explore the expression of cancer stem cells(CSC) markers named ABCG2,CD44,CD34 in hu man nasopharyngeal carcinoma(NPC) CNE-2,5-8F and 6-10 B cell lines to provide the basis of CSC markers research of NPC.Methods The NPC cell lines of CNE2,5-8F and 6-10 B were cultivated regularly,of which,ABCG2,CD44,CD34 cell ratio was detected with flow cytometry. Results ABCG2 positive cells accounted about 0.1%,18.6% and 19.9% in the CNE-2,5-8F,6-10 B cell lines. CD44 positive cells accounted 99.5%,93.2% and 99.1% in the CNE-2,5-8F and 6-10 B cell lines. CD34 positive cells accounted 0,3.0%and 0.1% in the CNE2,5-8F,and 6-10 B cell lines. ABCG2+CD44+cell interation accounted about 11.6%and ABCG2+CD44+cell interation accounted about 0 in 5-8F cell lines. Conclusion The expression proportion of CD34+in the 5-8F and 6-10 B cell lines confirms to CSC markers of the CSC theory. CD34 may be deemed as a candidate marker of nasopharyn-geal neoplas.更多还原