›› 1999, Vol. 19 ›› Issue (3): 146-148.

• 论文 • 上一篇    下一篇

两株人成骨肉瘤克隆细胞株的建立及其生物学特性

  

  1. 第四军医大学实验动物研究中心,西安 710032
  • 收稿日期:1999-04-19 出版日期:1999-01-25 发布日期:2013-03-19

Establishment of Two Human Osteosarcoma Cell Lines and Their Biological Characteristics

  • Received:1999-04-19 Online:1999-01-25 Published:2013-03-19

摘要: 通过克隆技术及体内移植,从自建的成骨肉瘤细胞LTH-OS(简称S)中获得两株细胞克隆S1和S2,应用组织形态学观察、染色体分析、软琼脂克隆形成法以及裸小鼠体内成瘤试验研究癌细胞的生物学特性。结果发现S1和S2两株均保持人类染色体核型,所形成肿瘤显示人成骨肉瘤上皮样组织形态,其中S1的细胞电泳率高达1.0,S2为0.70,S1的群体倍增时间为22.4h,软琼脂形成率为33.5%,S2群体倍增时间为24.0h,软琼脂形成率为23.1%。裸小鼠右后肢皮下接种S1和S2,发现S1成瘤时间短,细胞增殖快,但在4周内两者均不发生转移;通过尾静脉注射S1和S2细胞,发现4周时,接种S1细胞的裸鼠出现广泛的实验性肺转移,接种S2细胞的裸鼠肺部仅见几个分散的癌细胞。

关键词: 成骨肉瘤, 肿瘤移植, 细胞克隆, 生物学特性

Abstract: In order to study the characteristics of two cell lines (S1,S2) derived from human osteosarcoma cell LTH - OS(S) and established by clone technique and transplantation. Cellgrowth in soft agar,chromosome analysis, histological observation, and tumor formation rate in nude mice were used to characterize the cells. Electrophoresis mobility was 1.00 and 0.70,the doubling time of population was 22.4 h and 24.0 h,the clone formation rate in soft agar was 33.5% and 23.1% for S1 and S2,respectively. Extensive lung tumor was observed in nude mice after inoculation of S1 cells through tail vein. The results indicated that the cell lines isolated may be very useful material for the study of characteristics of metastatic cancer cells.

Key words: Osteosarcoma, Cancer Metastasis, Clone cell, Nude mice