中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (24): 3808-3813.doi: 10.12307/2022.558

• 干细胞基础实验 basic experiments of stem cells • 上一篇    下一篇

一株永生化口腔癌相关成纤维细胞系的建立及鉴定

陈  盛1,杨  艳1,丁  亮2,叶传进1,张  磊1,夏  舒1,李慧玲1,黄晓峰1   

  1. 南京大学医学院附属口腔医院,1病理科,2中心实验室,江苏省南京市   210000
  • 收稿日期:2021-03-18 接受日期:2021-04-12 出版日期:2022-08-28 发布日期:2022-01-24
  • 通讯作者: 黄晓峰,博士,主任医师,硕士生导师,南京大学医学院附属口腔医院病理科,江苏省南京市 210000
  • 作者简介:陈盛,男,1982年生,安徽省滁州市人,汉族,主管技师,主要从事口腔颌面肿瘤方面的研究。
  • 基金资助:
    国家青年科学基金项目(81902754),项目负责人:丁亮;江苏省自然科学基金项目(BK20190304),项目负责人:丁亮

Establishment and identification of an immortalized oral cancer-related fibroblast line

Chen Sheng1, Yang Yan1, Ding Liang2, Ye Chuanjin1, Zhang Lei1, Xia Shu1, Li Huiling1, Huang Xiaofeng1   

  1. 1Department of Pathology, 2Central Laboratory, Affiliated Stomatological Hospital of Medical School of Nanjing University, Nanjing 210000, Jiangsu Province, China
  • Received:2021-03-18 Accepted:2021-04-12 Online:2022-08-28 Published:2022-01-24
  • Contact: Huang Xiaofeng, MD, Chief physician, Master’s supervisor, Department of Pathology, Affiliated Stomatological Hospital of Medical School of Nanjing University, Nanjing 210000, Jiangsu Province, China
  • About author:Chen Sheng, Technician-in-charge, Department of Pathology, Affiliated Stomatological Hospital of Medical School of Nanjing University, Nanjing 210000, Jiangsu Province, China
  • Supported by:
    National Youth Science Fund Project, No. 81902754 (to DL); Jiangsu Natural Science Foundation, No. BK20190304 (to DL)

摘要:

文题释义:
肿瘤相关成纤维细胞:是肿瘤基质细胞的主要成分,又称肌纤维母细胞、癌旁成纤维细胞、反应性纤维母细胞、癌相关成纤维细胞。相较于长梭形的静息状态成纤维细胞,肿瘤相关成纤维细胞体积较大、排列方式杂乱、呈纺锤形、细胞核呈锯齿状、细胞浆中收缩细丝或张力纤维丝增加,可通过自分泌或旁分泌细胞因子的形式作用于肿瘤细胞,或通过与肿瘤细胞直接接触,参与肿瘤细胞的增殖、侵袭和转移等重要病理过程。

背景:肿瘤相关成纤维细胞系是构成肿瘤微环境的重要细胞成分,但是在原代培养过程中极易老化和表型丢失,进而显著降低肿瘤相关成纤维细胞功能相关研究的实验重复性。
目的:旨在建立一种永生化的口腔癌相关成纤维细胞系,为探索口腔癌中肿瘤相关成纤维细胞功能提供稳定的细胞实验材料。
方法:采用酶消化法分离、纯化人口腔癌组织来源肿瘤相关成纤维细胞,利用包装有人端粒酶反转录酶(pBABE-hygro-hTERT)的慢病毒感染原代肿瘤相关成纤维细胞,鉴定其形态及其标志物,然后进行细胞增殖、衰老功能检测,对原代和永生化肿瘤相关成纤维细胞进行染色体核型分析、细胞系身份鉴定。
结果与结论:①成纤维细胞永生化后,其标志物α-SMA、PDGFRβ以及FSP-1表达没有发现显著改变;②即使在传代15代后,永生化成纤维细胞的增殖速率明显优于非永生化成纤维细胞;③β-半乳糖苷酶染色结果显示:随着细胞代数增加,与非永生化成纤维细胞相比,永生化成纤维细胞未见明显衰老;④永生化成纤维细胞染色体核型仍保留正常细胞的基本特征,而未发生恶性转化;⑤短串联重复序列鉴定结果显示,永生化成纤维细胞为原代细胞,与已知细胞数据库信息均无重合;⑥以上结果说明,成功建立了口腔癌来源的永生化成纤维细胞系,为口腔癌肿瘤微环境研究提供进一步的实验基础。

https://orcid.org/0000-0003-2120-4443 (陈盛) 

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: 肿瘤相关成纤维细胞, 口腔鳞癌, 原代细胞, 永生化细胞系, 细胞衰老, 染色体核型鉴定

Abstract: BACKGROUND: Cancer-associated fibroblasts are important cell components that constitute the tumor microenvironment, but they are prone to aging and phenotype loss during the primary culture, which greatly reduces the experimental reproducibility of cancer-associated fibroblasts function-related research.  
OBJECTIVE: To establish an immortalized oral cancer-related cancer-associated fibroblast line and provide stable experimental cells for exploring the function of cancer-associated fibroblasts in oral cancer.
METHODS:  Enzymatic digestion method was used to isolate and purify cancer-associated fibroblasts from human oral cancer tissues, and the lentivirus packaged with human telomerase reverse transcriptase (hTERT) (pBABE-hygro-hTERT) was used to infect primary cancer-associated fibroblasts; and their morphology and markers were identified; cell proliferation and aging functions were tested. Furthermore, chromosome karyotype analysis and short tandem repeat analysis were performed on primary cancer-associated fibroblasts and immortalized cancer-associated fibroblasts for cell line identification.  
RESULTS AND CONCLUSION: (1) After fibroblasts were immortalized, the expression levels of their markers α-SMA, PDGFRβ and FSP-1 were not significantly changed. (2) Even after 15 passages, their proliferation rate was significantly better than that of non-immortalized cells. (3) The results of β-galactosidase staining showed that with the increase of cell passage, compared with non-immortalized fibroblasts, immortalized fibroblasts did not present obvious senescence. (4) The karyotype of immortalized fibroblasts still retained the basic characteristics of normal cells without malignant transformation. (5) Short tandem repeat identification results demonstrated that immortalized fibroblasts were primary cells, and there was no overlap with the information in the known cell database. (6) These findings indicate that an immortalized fibroblast line derived from oral cancer has been successfully established, which provides a further experimental basis for studying the tumor microenvironment of oral cancer.

Key words: tumor-associated fibroblasts, oral squamous cell carcinoma, primary cells, immortalized cell lines, cellular senescence, karyotype identification

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