中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (7): 1052-1056.doi: 10.3969/j.issn.2095-4344.2015.07.013

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

10株人癌细胞基因组的微卫星不稳定性特征

石中正1,2,刘 燕1,罗 敏1,陈英杰2,周轶平1   

  1. 1昆明医科大学药学院暨省天然药物药理重点实验室,云南省昆明市 650500;2昆明医科大学基础医学院,云南省昆明市 650500
  • 出版日期:2015-02-12 发布日期:2015-02-12
  • 通讯作者: 周轶平,博士,副教授,昆明医科大学药学院暨省天然药物药理重点实验室,云南省昆明市 650500
  • 作者简介:石中正,男,1986年生,黑龙江省牡丹江市人,汉族,2014年昆明医科大学毕业,硕士,主要从事肿瘤药理研究。
  • 基金资助:

    云南省应用基础研究计划项目(2011FZ098,2014FB011);云南省科技厅-昆明医科大学应用基础研究联合专项(2014FB011);云南省教育厅科学研究基金项目(2014Z060);云南省天然药物药理重点实验室开放研究基金项目(2013G011,2013G012)

Microsatellite instability of 10 human cancer cell lines

Shi Zhong-zheng1, 2, Liu Yan1, Luo Min1, Chen Ying-jie2, Zhou Yi-ping1   

  1. 1Yunnan Key Laboratory of Pharmacology for Natural Products, College of Pharmacy, Kunming Medical University, Kunming 650500, Yunnan Province, China; 2College of Basic Medicine, Kunming Medical University, Kunming 650500, Yunnan Province, China
  • Online:2015-02-12 Published:2015-02-12
  • Contact: Zhou Yi-ping, M.D., Associate professor, Yunnan Key Laboratory of Pharmacology for Natural Products, College of Pharmacy, Kunming Medical University, Kunming 650500, Yunnan Province, China
  • About author:Shi Zhong-zheng, Master, Yunnan Key Laboratory of Pharmacology for Natural Products, College of Pharmacy, Kunming Medical University, Kunming 650500, Yunnan Province, China; College of Basic Medicine, Kunming Medical University, Kunming 650500, Yunnan Province, China
  • Supported by:

    the Applied Basic Research Plan of Yunnan Province, No. 2011FZ098, 2014FB011; the Special Fund for the Basic Application Research of Yunnan Provincial Science and Technology Department & Kunming Medical University, No. 2014FB011; the Scientific Research Foundation of Yunnan Provincial Education Department, No. 2014Z060; the Open Research Foundation of Yunnan Key Laboratory of Pharmacology for Natural Products, No. 2013G011, 2013G012

摘要:

背景:为了解实验室常用人癌细胞的微卫星不稳定性情况。

 

目的:从基因组微卫星水平分析各组织来源人癌细胞株的遗传背景差异。

 

方法:取10株指数生长期的人白血病、结肠癌、胃癌、肝癌、肺癌、宫颈癌、膀胱癌细胞及2株人正常细胞(人脐静脉内皮细胞、人皮肤成纤维细胞),提取细胞DNA,对BAT-25,BAT-26,CAT-25,NR-24,SEC-63 五个几近单态性的微卫星位点进行PCR扩增,12%聚丙烯酰胺凝胶电泳-银染法对产物进行检测,同时用ABI 3720XL自动测序仪测序。

 

结果与结论:人脐静脉内皮细胞、人皮肤成纤维细胞的5个微卫星位点扩增片段长度具有一致性及稳定性,可作为正常对照。人结肠癌细胞、人膀胱癌细胞在BAT-25、BAT-26、CAT-25或NR-24位点扩增片段长度均较人脐静脉内皮细胞及人皮肤成纤维细胞缩短,缩短产度为7-13 bp,属于微卫星高度不稳定细胞。其他细胞在5个位点扩增片段的长度与人脐静脉内皮细胞、人皮肤成纤维细胞一致,属于微卫星稳定细胞。实验结果揭示了受试人癌细胞基因组微卫星不稳定性水平,为未来选择合适的细胞株进行药物活性筛选等试验奠定了基础。

 


中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, 人癌组织细胞, 微卫星不稳定性, 几近单态性位点, 银染

Abstract:

BACKGROUND: We aim to understand microsatellite instability in various human cancer cells.

OBJECTIVE: To analyze the difference in genotypic background of various tissue-derived human cancer cells based on microsatellite instability.
METHODS: Ten human cancer cell lines at exponential phase were cultured, including human leukemia cells, colon cancer cells, stomach cancer cells, liver cancer cells, lung cancer cells, cervical cancer cells, bladder cancer cells, and two normal human cell lines (human umbilical vein endothelial cells and human skin fibroblasts), and their microsatellite stability statuses were detected by five quasi-monomorphic markers: BAT-25, BAT-26, CAT-25, SEC-63, NR-24. DNA of 10 human cancer cell lines, human umbilical vein endothelial cells and human dermal fibroblasts was extracted and amplified by PCR. PCR products were detected by 12% polyacrylamide gel electrophoresis (PAGE)-silver staining and sequenced by ABI 3720XL automatic sequencer.
RESULTS AND CONCLUSION: For all the five microsatellite markers detected, the length of their PCR amplified fragments was nearly identical in human umbilical vein endothelial cells and human dermal fibroblasts, demonstrating their quasi-monomorphic nature. When compared with human umbilical vein endothelial cells and human dermal fibroblasts, amplified fragments in human colon cancer cells (HCT-116) and human bladder cancer cells (BIU-87) were shortened for 7-13 bp at BAT-25, BAT-26, CAT-25 or NR-24, respectively. No obvious differences were found at all the five loci in other cells. According to the results, HCT-116 cells and BIU-87 were considered as cells with high-level microsatellite instability. Other cell lines exhibited microsatellite stability at five loci, and they were considered as microsatellite stable cells. Our study revealed status of genome instability in 10 human cancer cell lines, providing references for appropriate cell line selecting in future drug screening and basic medical research.


中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: Carcinoma, Cell Line, Tumor, Microsatellite Instability

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