中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (28): 4526-4530.doi: 10.3969/j.issn.2095-4344.2015.28.018

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

人肺鳞癌干细胞的体外分离培养和鉴定

刘哲亮1,邬    娇2,王林纤3,陈跃军1,吴冠宇1,肖高明1   

  1. 中南大学湘雅医学院附属肿瘤医院,1胸外一科,2麻醉科,3检验科,湖南省长沙市  410013
  • 出版日期:2015-07-02 发布日期:2015-07-02
  • 通讯作者: 肖高明,博士生导师,主任医师,中南大学湘雅医学院附属肿瘤医院/湖南省肿瘤医院胸外一科,湖南省长沙市 410013
  • 作者简介:刘哲亮,男,1979 年生,湖南省祁东县人,汉族,2010 年中南大学湘雅医学院毕业,博士,主治医生,主要从事肺癌临床和肺癌干细胞基础研究。
  • 基金资助:

    湖南省自然科学基金资助项目(14JJ7092);湖南省卫生厅科研计划项目(C2013-027)

In vitro isolation, culture and identification of lung cancer stem cells in patients with lung squamous carcinoma

Liu Zhe-liang1, Wu Jiao2, Wang Lin-xian3, Chen Yue-jun1, Wu Guan-yu1, Xiao Gao-ming1   

  1. 1First Department of Thoracic Surgery, 2Department of Anesthesiology, 3Department of Laboratory, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
  • Online:2015-07-02 Published:2015-07-02
  • Contact: Xiao Gao-ming, Doctoral supervisor, Chief physician, First Department of Thoracic Surgery, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
  • About author:Liu Zhe-liang, M.D., Attending physician, First Department of Thoracic Surgery, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
  • Supported by:

    the Natural Science Foundation of Hunan Province, No. 14JJ7092; the Scientific Research Plan of Hunan Health Department, No. C2013-027

摘要:

背景:研究显示可从肺癌细胞系中分离出肺癌干细胞,但对于从新鲜肺鳞癌标本中原代培养肺癌干细胞的报道较少。
目的:探索从新鲜肺鳞癌组织标本中分离肺鳞癌干细胞的可行方法。
方法:借助胶原酶消化法、密度梯度离心法和Hoechst33342染料外排法初筛SP细胞,将初筛细胞置于条件培养基分离培养,后续应用流式细胞分析及分选技术,进一步分离纯化肺鳞癌干细胞。实验结合CD133和CD44鉴定目标细胞,并计数第4代细胞CD133+、CD44+及CD133/CD44双阳性细胞的阳性率。
结果与结论:接种后0.5 h细胞贴壁生长,培养第4天形成典型的细胞集落,第7天呈铺路石样外观,细胞数量级可达108。传代培养第4代肺癌干细胞的CD133+、CD44+和CD133/CD44双阳性细胞数明显增多。说明实验初步从肺鳞癌患者新鲜肺组织标本中分离培养并快速扩增SP细胞,并从中获取更多更纯的干细胞样肺鳞癌细胞,为进一步研究肺鳞癌干细胞的异质性和耐药性奠定基础。

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

关键词: 干细胞, 肿瘤干细胞, 肺鳞癌, 肺癌干细胞, 原代培养, 细胞鉴定, 表型, 诱导分化, 流式细胞术, 湖南省自然科学基金

Abstract:

BACKGROUND: Studies have shown that lung cancer stem cells can be isolated from lung cancer cell lines. But there are few reports about in vitro isolation, culture and identification of lung cancer stem cells in patients with lung squamous carcinoma.

OBJECTIVE: To explore the feasible methods of harvesting lung cancer stem cells from fresh lung cancer tissue in patients with lung squamous carcinoma.
METHODS: Side population cells were isolated by collagenase digestion, Ficoll density gradient centrifugation and Hoechst 33342 solution. The isolated cells were suspended in conditioned medium for isolated culture. Flow cytometry method was used to detect lung cancer stem cells based on the cell surface markers CD133 and CD44, and the positive rates of CD133+, CD44+ and CD133+/CD44+ cells were recorded.
RESULTS AND CONCLUSION: Cells adhered at 0.5 hour after incubation; typical cell colony was formed at 4 days of culture; cells showed paving stone-shape at 7 days in a total number of 108. The positive rates of CD133+, CD44+ and CD133+/CD44+ cells at passage 4 were increased significantly. These findings indicate that stem

 

cell-like lung cancer cells were obtained from fresh lung cancer tissue in patients with lung squamous carcinoma, which were stably and rapidly amplified in vitro, laying the foundation for the further study on the heterogeneity and resistance of lung cancer stem cells in the future.

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: Lung Neoplasms, Neoplastic Stem Cells;, Phenotype, Cell Separation, Flow Cytometry

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