癌变·畸变·突变 ›› 1999, Vol. 11 ›› Issue (1): 22-024.doi: 10.3969/j.issn.1004-616x.1999.01.008

• 论著 • 上一篇    下一篇

SV40T 介导的人胎儿永生化气管成纤维细胞系的建立

杨梅英 叶常青 刘雷华   

  1. 北京放射医学研究所 北京 100850
  • 收稿日期:1998-08-19 修回日期:1998-09-30 出版日期:1999-01-30 发布日期:1999-01-30

ESTABLISHMENT OF HUMAN FETAL TRACHEAL FIBROBLAST CELL LINE IMMORTALIZED BY SV40T

Yang Meiying, Ye Changqing, Liu Leihua   

  1. Institute of Radiation Medicine, Beijing  100850
  • Received:1998-08-19 Revised:1998-09-30 Online:1999-01-30 Published:1999-01-30

摘要: 建立永生化气管成纤维细胞系为研究细胞恶性转化提供实验模型。用pZIPSV40T 转染原代人胎气管成纤维细胞,G418 筛选,挑取阳性克隆传代培养,并进行细胞生物学特性鉴定。结果表明,细胞经pZIPSV40T 转染后,形态较正常细胞略短,排列不规则,当传至50 代时仍生长良好。Southern blot 证实此转化细胞整合了SV40T 基因。永生化细胞接种的第4 天细胞为指数生长期,染色体核型以非整倍体为主,不能在软琼脂上形成克隆,接种裸鼠不能形成肿瘤。

关键词: 永生化, 人胎气管成纤维细胞, 转化

Abstract: The aim is immortalizing the human fetal t racheal fibroblast cells to study the cell neoplastic transformation. The primary human fetal t racheal fibroblast cell was t ransfected with pZIPSV40T vector. The colonies that resistant to G418 were collected , and passaged to immortalize. The biological characters immortalized cell had been determined. Result : the immortalized cell morphology is shorter than normal , arrange un2regular. The cells grow well at p50. Southern blot confirmed the presence of T antigen as integrated form in immortalized cell DNA. The index of growth period was fourth day after plated. All the cells could not form colony in soft agar.No tumors formed after SC injection of the cells in nude mice. The result confirmed that human fetal t racheal fibroblast cell can be immortalized by SV40T gene.

Key words: Immortalization, Human fetal fibroblast cell, Transformation