中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (29): 4687-4691.doi: 10.3969/j.issn.2095-4344.0968

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

卵巢癌细胞系ID8中肿瘤干细胞的分离及生物学特性鉴定

俞晓毓1,吴 迪1,2,王 净2,李 菲1,白绪乐1,2,赵枫姝1,窦 骏1   

  1. 1东南大学医学院病原生物学与免疫学系,江苏省南京市 210009;2东南大学附属中大医院妇产科,江苏省南京市 210009
  • 出版日期:2018-10-18 发布日期:2018-10-18
  • 通讯作者: 窦骏,教授,博士生导师,东南大学医学院病原微生物学与免疫学系,江苏省南京市210009
  • 作者简介:俞晓毓,女,1992年生,江苏省盱眙县人,汉族,东南大学在读硕士,主要从事肿瘤干细胞研究。 并列第一作者:吴迪,女,1987年生,江苏省淮安市人,汉族,东南大学在读博士,主要从事肿瘤干细胞疫苗研究。
  • 基金资助:

    国家自然科学基金项目(81202372,81572887)

Isolation and biological identification of tumor stem cells from ovarian cancer ID8 cell lines

Yu Xiao-yu1, Wu Di1, 2, Wang Jing2, Li Fei1, Bai Xu-le1, 2, Zhao Feng-shu1, Dou Jun1   

  1. 1Department of Pathogenic Biology and Immunology, Medical College of Southeast University, Nanjing 210009, Jiangsu Province, China; 2Department of Gynecology & Obstetrics, Zhongda Hospital, Southeast University, Nanjing 210009, Jiangsu Province, China
  • Online:2018-10-18 Published:2018-10-18
  • Contact: Dou Jun, Professor, Doctoral supervisor, Department of Pathogenic Biology and Immunology, Medical College of Southeast University, Nanjing 210009, Jiangsu Province, China
  • About author:Yu Xiao-yu, Master candidate, Department of Pathogenic Biology and Immunology, Medical College of Southeast University, Nanjing 210009, Jiangsu Province, China. Wu Di, Doctorate candidate, Department of Pathogenic Biology and Immunology, Medical College of Southeast University, Nanjing 210009, Jiangsu Province, China; Department of Gynecology & Obstetrics, Zhongda Hospital, Southeast University, Nanjing 210009, Jiangsu Province, China. Yu Xiao-yu and Wu Di contributed equally to this work.
  • Supported by:

    the National Natural Science Foundation of China, No. 81202372, 81572887

摘要:

文章快速阅读:

文题释义:
肿瘤干细胞或癌干细胞(cancer stem cell,CSC):
是指肿瘤组织中极小部分能够自我更新、无限分化并具有耐受放化疗等特点的肿瘤细胞,与干细胞的基本特性十分相似,被认为是肿瘤形成、进展、复发和耐药的根源。传统的手术辅助放化疗的治疗方法并不能有效地杀灭CSC,可导致CSC残余富集。因此,有效靶向CSC的治疗将是消灭肿瘤、防止复发的关键。
无血清培养基:是由基础培养基DMEM/F12和添加的组分组成。其中基础培养基DMEM/F12(1∶1)为含有一定比例的氨基酸、维生素、无机盐、葡萄糖等,为细胞生存提供最基本的支持;而添加的组分包括重组表皮生长因子、重组碱性成纤维生长因子、牛血清白蛋白及重组胰岛素等,这些组分对细胞增殖、保持干细胞活性和防止细胞分化以及促进细胞新陈代谢等起到至关重要的作用。

 

摘要
背景:
肿瘤干细胞在肿瘤发生和发展中起着至关重要的作用,但鼠卵巢癌细胞系ID8中是否存在肿瘤干细胞仍未见报道。
目的:分选小鼠源性卵巢癌细胞系ID8的肿瘤干样细胞,鉴定其生物学特性。
方法:应用无血清培养基培养ID8细胞,将获得悬浮球细胞传代扩增。体外采用CCK8法、平板克隆、Transwell小室侵袭及体外药敏实验观察悬浮球细胞与常规培养的ID8细胞在生物学功能上的差异。应用定量PCR以及Western blot检测悬浮球细胞和非悬浮球细胞的肿瘤干细胞标志ALDH1的表达水平,并通过小鼠致瘤实验观察其成瘤能力。
结果与结论:小鼠卵巢癌ID8细胞能在无血清培养基中形成可稳定传代的悬浮球细胞,与非悬浮球细胞相比,具有较强的增殖、自我更新、侵袭、耐药及致瘤的能力,并高表达肿瘤干细胞标志ALDH1。说明无血清培养法可以有效的富集具有卵巢癌干样细胞特征的ID8悬浮球细胞。

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: 0000-0003-4459-1618(俞晓毓)

关键词: 卵巢肿瘤, 肿瘤干细胞, ID8细胞, 无血清培养, 悬浮球细胞, 干性, 分离, 鉴定, ALDH1

Abstract:

BACKGROUND: Tumor stem cells play an important role in the initiation and development of tumor. However there is no report on whether tumor stem cells exist in mouse ovarian cancer cell line ID8.
OBJECTIVE: To sort tumor stem-like cells from murine ID8 ovarian cancer cell line and to investigate its biological characteristics.
METHODS: ID8 cells were cultured in the serum-free medium to derive tumor spheres. Cell counting kit 8, plate colony formation, Transwell assays and chemosensitivity testing were adopted to analyze the biological differences between suspending sphere cells and conventional cultured ID8 cells. Real-time PCR and western blot assays were performed to examine the expression of ALDH1. A mouse model of tumorigenicity was used to observe the tumorigenesis in vivo.
RESULTS AND CONCLUSION: Ovarian ID8 cells grew into stable suspending tumor spheres in the serum-free medium. Compared with conventional ID8 cells, suspending sphere cells had stronger abilities of proliferation, self-renewal, invasion, drug resistance and tumorigenesis. Moreover, ALDH1 expression in suspending spheres cells was higher than that in conventional cultured ID8 cells. These findings indicate that serum-free medium culture can effectively enrich ID8 suspending sphere cells which have the properties of ovarian cancer 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: Neoplastic Stem Cells, Culture Media, Serum-Free, Tissue Engineering

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