中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (41): 6125-6130.doi: 10.3969/j.issn.2095-4344.2016.41.007

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

来源于乳腺癌正常组织乳腺干细胞的安全性

毕晓娟1,付明刚2,郭丽英2,刘  莎2,迪丽米娜•伊拉木2,郭晨明2   

  1. 新疆医科大学第一附属医院,1临床医学研究院科研基地科,2消化血管中心乳腺外科,新疆维吾尔自治区乌鲁木齐市  830054
  • 修回日期:2016-09-03 出版日期:2016-10-07 发布日期:2016-10-07
  • 通讯作者: 郭晨明,博士,主治医师,新疆医科大学第一附属医院消化血管中心乳腺外科,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:毕晓娟,女,1983年生,新疆维吾尔自治区和硕县人,汉族,2016年新疆医科大学毕业,硕士,助理研究员,主要从事干细胞相关研究。
  • 基金资助:

    新疆重大疾病医学重点实验室开放课题(SKLIB-XJMDR-ZX-2014-1);新疆医科大学第一附属医院自然科学基金青年项目(2013ZRQN50)

Safety assessment of mammary gland stem cells from normal tissues in breast cancer patients

Bi Xiao-juan1, Fu Ming-gang2, Guo Li-ying2, Liu Sha2, Dilimina Yilamu2, Guo Chen-ming2   

  1. 1Scientific Research Base of Clinical Medicine Research Institute, 2Department of Breast Surgery, Research Center for Digestion and Vessels, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Revised:2016-09-03 Online:2016-10-07 Published:2016-10-07
  • Contact: Guo Chen-ming, M.D., Attending physician, Department of Breast Surgery, Research Center for Digestion and Vessels, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Bi Xiao-juan, Master, Assistant researcher, Scientific Research Base of Clinical Medicine Research Institute, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    Open Topics of Xinjiang Key Laboratory of Critical Diseases, No. SKLIB-XJMDR-ZX-2014-1; the Natural Science Foundation for the Youth in the First Affiliated Hospital of Xinjiang Medical University, No. 2013ZRQN50

摘要:

文章快速阅读:

文题释义:
乳腺干细胞:
研究显示乳腺癌是由于乳腺干细胞或接近干细胞水平的祖细胞病变引起,而乳腺干细胞可以从正常乳腺腺体、良性或恶性乳腺肿瘤的瘤旁组织以及乳汁分离的乳腺上皮细胞中获得。通过检测乳腺干细胞的干细胞特性和多种生物学特点、基因特点及其分子生物学方面的安全性,对将来研究乳腺的发生、发育、器官再生有很大帮助。
c-erbB-2基因:又称为neu或HER-2基因,是一种细胞来源癌基因,在多种肿瘤中其癌基因及蛋白产物(P185)均有过度表达和扩增。对c-erbB-2癌基因蛋白产物P185的病理研究首先多见于乳腺癌,其作用也较为明确。目前普遍认为,c-erbB-2蛋白产物的阳性表达可作为判断乳腺癌预后的一个独立指标。

 

摘要
背景:
乳腺干细胞的培养对研究乳腺的发育及乳腺癌具有重要的意义。
目的:找到一种易操作的体外分离培养乳腺干细胞的方法,并验证其安全性。
方法:分离培养乳腺癌旁正常组织中乳腺上皮细胞,流式细胞仪分选CD49f和EPCAM阳性细胞进行干细胞表面标记分析及细胞集落形成能力分析,然后在乳腺干细胞、乳腺癌组织和乳腺癌旁正常组织中提取mRNA,实时荧光定量PCR检测C-erbB-2和Maspin基因的表达。
结果与结论:①成功培养出人乳腺干细胞,并且细胞表面特异性标志物CD49f,EPCAM高表达;②集落形成能力分析可见混合集落、腔上皮细胞集落、肌上皮细胞集落;③乳腺干细胞C-erbB-2低表达,而Maspin高表达,证明来源于乳腺癌正常组织的乳腺干细胞具有生物安全性。

 

 

关键词: 干细胞, 肿瘤干细胞, 乳腺干细胞, 乳腺癌, c-erbB-2, maspin, CD49f, EPCAM

Abstract:

BACKGROUND: The cultivation of mammary gland stem cells is of great significance for the development of mammary gland and breast cancer.
OBJECTIVE: To seek an easy method to isolate and culture mammary gland stem cell in vitro, and verify the safety of cells.
METHODS: Mammary epithelial cells were isolated from normal tissues surrounding breast cancer, and CD49f- and EPCAM-positive cells were sorted using flow cytometry followed by surface marker analysis and cell colony formation ability analysis. Afterwards, real-time fluorescent quantitative PCR was used to detect C-erbB-2 and Maspin mRNA expression in mammary gland stem cells, breast cancer tissues and normal tissues surrounding breast cancer.
RESULTS AND CONCLUSION: Human mammary gland stem cells were successfully cultured and highly expressed CD49f and EPCAM, with the presence of mixed colony, pleural epithelial cell colony, and myoepithelial cell colony. c-erbB-2 was lowly expressed while Maspin highly expressed in mammary gland stem cells. Our experimental findings indicate that the mammary gland stem cells derived from normal tissue surrounding breast cancer have biological safety.

 

 

Key words: Breast Neoplasms, Neoplastic Stem Cells, Genes, erbB-2, Tissue Engineering

中图分类号: