J4

• 基础研究 • 上一篇    下一篇

凋亡在软骨细胞分化中的作用

王 欣1,2,安治国3,常淑芳2,杨春伟2,颜炜群2*   

  1. 1. 吉林大学公共卫生学院毒理学教研室,吉林 长春130021;2. 吉林大学再生医学科学研究所生物化学研究室,吉林 长春130021;3. 吉林大学中日联谊医院,吉林 长春130031
  • 收稿日期:2004-09-20 修回日期:1900-01-01 出版日期:2005-11-28 发布日期:2005-11-28
  • 通讯作者: 颜炜群

Role of apoptosis in hondrocyte differentiation

WANG Xin1,2,AN Zhi-guo3,CHANG Shu-fang2,YANG Chun-wei2 ,YAN Wei-qun2*   

  1. 1.Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, China;2. Department of Biochemistry, Institute of Frontier Medical Sciences, Jilin University, Changchun 130021,ChinaPublic ;3. China-Japan Union Hospital,Jilin University, Changchun 130031, China
  • Received:2004-09-20 Revised:1900-01-01 Online:2005-11-28 Published:2005-11-28
  • Contact: YAN Wei-qun

摘要: 目的:探讨凋亡在软骨细胞分化中的作用。方法:采用透视电镜和TUNEL方法,检测5和12周龄的正常家兔肋软骨细胞的凋亡变化。结果:软骨细胞的增殖和分化是渐进过程,透视电镜结果表明软骨细胞的凋亡从增殖带和肥大带交接处开始出现;TUNEL结果表明凋亡存在整个软骨组织区,但以肥大带凋亡率高,且 此凋亡率随年龄增加而增高。结论:家兔肋软骨生长板软骨细胞从静止区到骨化区细胞的增殖和分化是一个渐进过程,在此过程中凋亡可能起着重要的调节作用。

关键词: 细胞凋亡, 细胞分化

Abstract: Objective To explore the effect of apoptosis on chondrocyte differentiation. Methods The apoptosis of costal chondrocytes of 5-week-old and 12-week-old rabbits was detected by methods of transmission electron microscopy and TUNEL. Results The proliferation and differentiation of chondrocytes was a gradual procedure. The apoptotic chondrocytes occurred at boundary from proliferation zone to hypertrophy zone by using transmission electron microscopy. The apoptosis existed in the whole cartilage zone, but the apoptotic percentage was highest in hypertrophy zone and increased with the age by using TUNEL method. Conclusion The proliferation and differentiation of costal chondrocytes from silence zone to bone zone of rabbits is a gradual procedure, in which apoptosis may play an important regulatory effect.

Key words: apoptosis, cell differentiation

中图分类号: 

  • Q254