中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (1): 55-59.doi: 10.3969/j.issn.2095-4344.2016.01.010

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

人食管癌细胞株KYSE-150、TE-1中肿瘤干细胞的培养分化及增殖侵袭能力分析

王永连,王忠民,王 毅,陶义鹏,韩高扬   

  1. 新乡医学院第一附属医院胸外科,河南省新乡市 453000
  • 收稿日期:2015-11-15 出版日期:2016-01-01 发布日期:2016-01-01
  • 作者简介:王永连,男,1973年生,河南省商丘市人,汉族,2007年新乡医学院毕业,硕士,副主任医师,主要从事胸外科方面的研究。
  • 基金资助:
    河南省卫生厅立项课题(200803080)

Culture, differentiation, proliferation and invasion of tumor stem cells in human esophageal carcinoma cell lines KYSE-150 and TE-1

Wang Yong-lian, Wang Zhong-min, Wang Yi, Tao Yi-peng, Han Gao-yang   

  1. Department of Thoracic Surgery, First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, China
  • Received:2015-11-15 Online:2016-01-01 Published:2016-01-01
  • About author:Wang Yong-lian, Master, Associate chief physician, Department of Thoracic Surgery, First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, China
  • Supported by:

     a grant from Henan Provincial Health Department, No. 200803080

摘要:

文章快速阅读:

文题释义:

肿瘤干细胞:肿瘤组织中存在一类特殊的细胞,此类细胞具有很强分化和增殖能力,并与肿瘤的增殖和侵袭转移等过程存在密切的联系。实验已从人食管癌细胞株KYSE-150及TE-1中分离培养出具有肿瘤干细胞特性的细胞球。
侵袭转移:侵袭指肿瘤细胞的直接扩散,从原发部位经组织间隙、淋巴管、血管、体腔或脊髓腔不断地向附近器官、组织扩散,累及邻近器官;转移是指恶性肿瘤细胞脱离原发肿瘤主体,在与原发肿瘤不相连或较远部位组织器官继发生长出的一个或多个肿瘤。

 

背景:研究发现,食管癌组织中存在一类细胞亚群,具有一定的侵袭和转移性能,与治疗效果之间存在十分密切的联系。

目的:从人食管癌细胞株KYSE-150、TE-1中分离富含肿瘤干细胞的细胞球,并对其增殖和侵袭能力进行分析。
方法:运用无血清培养基培养KYSE-150、TE-1细胞,观察细胞球的生成情况,采用MTT法以及Transwell小室实验检测细胞的增殖情况和侵袭能力,流式细胞仪检测细胞表面标志物的表达。

结果与结论:①KYSE-150、TE-1细胞在无血清培养条件下可以获得稳定传代的细胞球。②细胞球的增殖能力和侵袭能力均显著高于亲本细胞(P < 0.05)。③TE-1细胞球和KYSE-150细胞球的CD44+、CD271+、CD44+CD271+细胞比例均显著高于TE-1亲本细胞和KYSE-150亲本细胞(P < 0.05)。④实验结果提示,从人食管癌细胞株KYSE-150、TE-1中分离出具有肿瘤干细胞特性的细胞球,具有很强的增殖和侵袭转移能力,且CD44和CD271可以作为重要的食管癌干细胞表面标志物。 

ORCID: 0000-0001-9858-4312(王永连)

关键词: 干细胞, 肿瘤干细胞, 食管癌, KYSE-150细胞株, TE-1细胞株, 肿瘤干细胞, 诱导分化, 细胞球, 增殖, 侵袭

Abstract:

BACKGROUND: There is a certain cell subset in esophageal cancer tissues, with certain invasive and metastatic properties, which is closely related to the clinical therapeutic effect on tumors.
OBJECTIVE: To isolate tumor stem cell spheres in human esophageal carcinoma cell lines KYSE-150 and TE-1 and to analyze their proliferation and invasion ability.
METHODS: KYSE-150 and TE-1 cells were cultured in serum-free medium to observe the formation of cell spheres. Cell proliferation and invasion were detected using MTT and Transwell chamber culture. Surface markers of cells were detected using flow cytometry.
RESULTS AND CONCLUSION: Cell spheres that were stably subcultured were obtained from KYSE-150 and TE-1 cells cultured in serum-free medium. The proliferation and invasion abilities of cell spheres were significantly stronger than those of parent cells (P < 0.05). The number of CD44+, CD271+ and CD44+CD271+ cells in TE-1 and KYSE-150 cell spheres was significantly higher than that in the TE-1 and KYSE-150 parent cells (P < 0.05). These experimental results show that cell spheres isolated from human esophageal carcinoma cell lines TE-1 and KYSE-150 have tumor stem cell properties as well as strong proliferation and invasion abilities. And moreover, CD44 and CD271 can be used as important surface markers of esophageal carcinoma stem cells. 

 

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