中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (23): 3374-3379.doi: 10.3969/j.issn.2095-4344.2016.23.004

• 肿瘤干细胞 cancer stem cells • 上一篇    下一篇

恶性肿瘤干细胞标记物CD34在鼻咽癌细胞系的表达

张军红1,李  青2,王春华3,吴秀云3,卢新阁3,王莉菲4,杨蕾蕾1,王秋红5   

  1. 河北省眼科医院,河北省眼科研究所,1病理科,3耳鼻喉科,4河北省眼科学重点实验室,5检验科,河北省邢台市  054000;2贵阳医学院附属医院骨科,贵州省贵阳市  550004
  • 收稿日期:2016-04-13 出版日期:2016-06-03 发布日期:2016-06-03
  • 作者简介:张军红,女,1974年生,河北省邢台市人,汉族,2009年河北医科大学毕业,主治医师,主要从事癌症的发病机制和临床病理相关性研究。
  • 基金资助:

    邢台市科技支撑计划(2013ZC062)

CD34, a cancer stem cell marker, in nasopharyngeal carcinoma cell lines

Zhang Jun-hong1, Li Qing2, Wang Chun-hua3, Wu Xiu-yun3, Lu Xin-ge3, Wang Li-fei4, Yang Lei-lei1,Wang Qiu-hong5   

  1. 1Department of Pathology, 3Department of Otolaryngology, 4Key Laboratory of Ophthalmology of Hebei, 5Laboratory, Ophthalmic Hospital of Hebei, Ophthalmic Institute of Hebei Province, Xingtai 054000, Hebei Province, China; 2Department of Orthopedics, Affiliated Hospital of Guiyang Medical University, Guiyang 550004, Guizhou Province, China
  • Received:2016-04-13 Online:2016-06-03 Published:2016-06-03
  • About author:Zhang Jun-hong, Attending physician, Department of Pathology, Ophthalmic Hospital of Hebei, Ophthalmic Institute of Hebei Province, Xingtai 054000, Hebei Province, China
  • Supported by:

     the Science and Technology Support Program of Xingtai, No. 2013ZC062

摘要:

文章快速阅读:

文题释义:
肿瘤干细胞假说:
是近年提出的肿瘤发生的新理论,目前已经在白血病、肺癌、乳腺癌、鼻咽癌、脑癌等肿瘤组织中分离出肿瘤干细胞。近年来的研究结果支持肿瘤干细胞具有转移和抗放化疗的特点。
CD34分子:最初发现是特异性表达在人类造血干细胞表面高度糖基化Ⅰ型跨膜蛋白。随着对CD34的深入研究,发现CD34特异性表达在白血病、结直肠、脑瘤和头颈癌等肿瘤干细胞表面,可作为表面标志分子分离肿瘤干细胞。对CD34在广度和深度的深入研究,可能对于癌症的诊断和治疗有重要意义。

 

摘要
背景:
在多种肿瘤中已证实CD34与肿瘤的发生、发展、复发、转移、耐药密切相关,但是CD34与鼻咽癌的关系目前还知之甚少。
目的:分选鼻咽癌细胞株中CD34+与CD34-细胞的增殖和迁移能力。
方法:利用流式细胞术检测CD34在鼻咽癌细胞株5-8F、6-10B、CNE1、CNE2中的表达,根据细胞表面标志物分选出CD34+与CD34-细胞,进行纯度鉴定;通过体外MTT法、平板克隆形成实验以及划痕实验分析CD34+细胞与CD34-细胞增殖和迁移能力。
结果与结论:①4种鼻咽癌细胞株中CD34表达均恒定在0.1%-0.2%,且CD34水平与细胞的生长密度关系密切;②分选的CD34+细胞群中,CD34+细胞例能达到98%以上,在CD34-细胞群中未能检测到CD34+细胞;③CD34+细胞在第1,3,5,7天增殖速度显著高于CD34-细胞(P < 0.05);④CD34+细胞克隆形成率显著高于CD34-细胞(P < 0.05);⑤CD34+细胞向划痕区迁移的细胞明显多于CD34-细胞(P < 0.05);⑥结果提示,CD34+细胞体外培养具有更高的增殖和转移能力,具有鼻咽癌肿瘤干细胞潜能。

 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID: 0000-0002-5551-9315(张军红)

关键词: 干细胞, 肿瘤干细胞, 鼻咽癌, 肿瘤干细胞标记物, CD34

Abstract:

BACKGROUND: Previous research have confirmed that CD34 is closely related to oncogenesis, progress, recurrence, metastasis and drug-resistance of various cancers, but its role in nasopharyngeal carcinoma remains unclear.
OBJECTIVE: To sort cells positive and negative for CD34 in nasopharyngeal carcinoma cell lines and to detect cell proliferation and migration.
METHODS: Expressions of CD34 in nasopharyngeal carcinoma cell lines 5-8F, 6-10B, CNE1 and CNE2 were detected by flow cytometry. And CD34+ and CD34- cells were sorted based on cell surface markers for purity identification. Afterwards, proliferation and migration of CD34+ and CD34- cells were detected by MTT assay, colony-formation assay and scratch assay.
RESULTS AND CONCLUSION: All four nasopharyngeal carcinoma cell lines expressed CD34 in 0.1%-0.2%, and the level of CD34 was closely related to the cell growth density. The purity of CD34+ cell was more than 98% in the sorted CD34+ cell populations, but no CD34+ cells were found in the sorted CD34- cell populations. At 1, 3, 5 and 7 days the proliferation rate of CD34+ cell, populations was significantly higher than that of CD34- cells (P < 0.05). Consistently, the colony-formation efficiency of CD34+ cell was significantly higher than that of CD34- cells (P < 0.05). Moreover, CD34+ cells migrated significantly faster than CD34- cells by scratch assay (P < 0.05). In conclusion, CD34+ cells cultured in vitro display higher proliferation and migration capacities, indicating that CD34+ cells have the potential of nasopharyngeal carcinoma stem cells.

 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words:  Nasopharyngeal Neoplasms, Neoplastic Stem Cells, Antigens, CD34, Tissue Engineering

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