中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (51): 8305-8309.doi: 10.3969/j.issn.2095-4344.2014.51.020

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

软骨损伤后Ⅰ、Ⅱ型胶原蛋白的表达

张 猛1,周嘉俊2,罗宗平1   

  1. 1苏州大学附属第一医院,江苏省苏州市 215006;2苏州大学机电学院,江苏省苏州市 215006
  • 出版日期:2014-12-10 发布日期:2014-12-10
  • 通讯作者: 罗宗平,博士,教授,苏州大学附属第一医院,江苏省苏州市 215006
  • 作者简介:张猛,男,1987年生,江苏省宿迁市人,汉族,苏州大学在读硕士,主要从事骨科生物力学研究。
  • 基金资助:

    国家自然科学基金项目(81320108018)

Expression of collagen type I and type II after articular cartilage injury

Zhang Meng1, Zhou Jia-jun2, Luo Zong-ping1   

  1. 1First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China; 2Electromechanical School, Soochow University, Suzhou 215006, Jiangsu Province, China
  • Online:2014-12-10 Published:2014-12-10
  • Contact: Luo Zong-ping, M.D., Professor, First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
  • About author:Zhang Meng, Studying for master’s degree, First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81320108018

摘要:

背景:目前Ⅰ型胶原蛋白与骨关节炎间的关系尚未被完全揭示,Ⅰ型胶原蛋白的表达模式亦未知,缺乏相关的研究来探讨上述问题。
目的:观察软骨退变过程中Ⅰ型胶原蛋白表达的模式,为进一步研究Ⅰ型胶原蛋白与骨关节炎间的关系提供参考。
方法:10只新西兰大白兔,用手术刀片在兔左下肢股骨滑车凹造一约5 mm长的纵向软骨损伤制备软骨损伤模型。造模后2,6周分别处死5只动物,取软骨损伤部位后制作石蜡切片,免疫组织化学检测损伤周围Ⅰ、Ⅱ型胶原蛋白的表达情况,番红O-快绿染色检测损伤周围软骨的退变情况。
结果与结论:免疫组织化学示:造模后2周后即可在软骨损伤周围检测到少量Ⅰ型胶原蛋白,6周后软骨损伤周围的Ⅰ型胶原蛋白有所增加,Ⅱ型胶原蛋白则未见明显改变。番红O-快绿染色示:2,6周软骨损伤周围均未见明显退变。结果表明,Ⅰ型胶原蛋白在骨关节炎早期即有表达,在软骨退变过程中表达逐渐增加,提示与骨关节炎的发生密切相关。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 软骨组织工程, 关节软骨, Ⅰ型胶原蛋白, Ⅱ型胶原蛋白, 骨性关节炎v软骨损伤

Abstract:

BACKGROUND: The relationship between collagen type I and osteoarthritis is still controversial, and expression patterns of collagen type I are not yet fully understood. There is lack of relevant research addressing the above-mentioned issues.
OBJECTIVE: To investigate the patterns of expression of collagen type I, and to contribute to the roles of collagen type I in the pathogenesis of osteoarthritis.
METHODS: The articular cartilage injury model was created in 10 New Zealand white rabbits. A 5 mm longitudinal wound was made in the middle of femoral trochlear groove using a scalpel. At 2 and 6 weeks after modeling, five animals were sacrificed, respectively. The injured articular cartilage was taken to make paraffin sections. Immunohistochemistry detection was used to detect the expression of collagen type I and type II around the injury. Safranine O-fast green staining was used to detect the distribution of proteoglycan around the injury.
RESULTS AND CONCLUSION: Results from the immunohistochemistry detection showed that a small amount of collagen type I was detected around the injury at 2 weeks after modeling, and there was much more collagen type I around cartilage injury at 6 weeks after modeling, but collagen type II had no obvious changes. Under the safranine O-fast green staining, no remarkable degeneration was found around the injured cartilage. These findings indicate that collagen type I has been increased in the early period of osteoarthritis. Expression of collagen type I is increased during the degeneration of articular cartilage, indicating a close relationship between collagen type I and osteoarthritis.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: collagen type I, collagen type II, knee joint, cartilage, rabbits

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