中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (24): 4495-4501.doi: 10.3969/j.issn.2095-4344.2013.24.018

• 组织构建与生物活性因子 tissue construction and bioactive factors • 上一篇    下一篇

退行性变椎间盘组织转化生长因子β1基因的表达

戴启宇,杨廷桐,于芳芳,王全志,王 媛,张小双   

  1. 解放军第371中心医院,河南省新乡市 453000
  • 收稿日期:2012-10-25 修回日期:2012-11-21 出版日期:2013-06-11 发布日期:2013-06-11
  • 通讯作者: 杨廷桐,教授,硕士研究生导师,解放军第371中心医院,河南省新乡市 453000 yangtt@xxmu.edu.cn
  • 作者简介:戴启宇,男,1954年生,河南省信阳市人,汉族,1979年解放军第三军医大学毕业,硕士研究生导师,主任,主任技师,主要从事临床生物化学、分子生物学研究。 DQY716@sohu.com

Transforming growth factor-beta 1 expression in the degenerative intervertebral disc

Dai Qi-yu, Yang Ting-tong, Yu Fang-fang, Wang Quan-zhi, Wang Yuan, Zhang Xiao-shuang   

  1. The 371 Central Hospital of PLA, Xinxiang 453000, Henan Province, China
  • Received:2012-10-25 Revised:2012-11-21 Online:2013-06-11 Published:2013-06-11
  • Contact: Yang Ting-tong, Professor, Master’s supervisor, the 371 Central Hospital of PLA, Xinxiang 453000, Henan Province, China yangtt@xxmu.edu.cn
  • About author:Dai Qi-yu, Master’s supervisor, Chief technician, the 371 Central Hospital of PLA, Xinxiang 453000, Henan Province, China DQY716@sohu.com

摘要:

背景:据报道,转化生长因子β1能促进椎间盘细胞的增殖与分化,并参与其损伤修复过程。但转化生长因子β1是否参与椎间盘退变的过程?
目的:分析在人体退行性变椎间盘组织中转化生长因子β1的表达情况,并探讨其与人体椎间盘退行性变的关系。
方法:收集正常椎间盘组织30例,退行性变人体椎间盘组织530例,采用苏木精-伊红染色、免疫印迹和RT-PCR方法进行研究,对退行性变的椎间盘组织进行病理学分型,分别检测转化生长因子β1在不同类型退变的椎间盘中表达的情况并与正常椎间盘组织进行对比分析。
结果与结论:苏木精-伊红染色病理学诊断:将退行性变的椎间盘组织根据病理学改变程度分为4型。免疫印迹法和RT-PCR法均显示:在正常和退变椎间盘组织中,转化生长因子β1均有表达,但在病变组织中随病变加重转化生长因子β1表达量随之增加,退变组织与正常组织比较差异有非常显著性意义 (P < 0.01)。说明转化生长因子β1高表达与人体椎间盘退行性变呈正相关。

关键词: 组织构建, 组织构建与生物活性因子, 椎间盘退行性变, 转化生长因子β1, 髓核细胞, 信号途径, 椎间盘组织, 椎间盘修复, 基因表达, 基因治疗, 病理形态学

Abstract:

BACKGROUND: Transforming growth factor-β1 can promote the proliferation and differentiation of intervertebral disc cells, and participate in the repair process after injury. However, whether transforming growth factor-β1 is involved in the intervertebral disc degeneration remains unclear.
OBJECTIVE: To analyze the expression of transforming growth factor-β1 in the degenerative intervertebral disc tissues, and to study the correlation between transforming growth factor-β1 and intervertebral disc degeneration.
METHODS: Normal intervertebral disc tissues collected from 30 cases and degenerative intervertebral disc tissues collected from 530 cases were researched by hematoxylin-eosin staining, western blot assay and reverse transcription-polymerase chain reaction. The degenerative intervertebral disc tissues were classified in histopathology, and transforming growth factor-β1 expression in different intervertebral disc degeneration tissues was analyzed and compared with that in normal tissues.
RESULTS AND CONCLUSION: Pathological diagnose by hematoxylin-eosin staining showed that, degenerative intervertebral disc tissues were classified into 4 pathological grades. Western blot and reverse transcription-PCR showed positive expressions of transforming growth factor-β1 in both normal and degenerative intervertebral disc tissues, however, transforming growth factor-β1 expression levels increased as degenerative changes and showed significant differences between degenerative and normal tissues(P < 0.01). Overexpression of transforming growth factor-β1 is positively correlated with intervertebral disc degeneration in human.

Key words:  tissue construction, tissue construction and bioactive factors, intervertebral disc degeneration, transforming growth factor-beta 1, nucleus pulposus cells, signal pathway, intervertebral disc tissue, intervertebral disc repair, gene expression, gene level, gene therapy, pathomorphology

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