中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (20): 3135-3140.doi: 10.3969/j.issn.2095-4344.2017.20.004

• 骨组织构建 bone tissue construction • 上一篇    下一篇

H-型血管在骨关节炎软骨下骨中的表达及作用

卢键森1,2,柳  鑫1,2,曾  春1,2,赵  畅2,方  航2,蔡道章1,2   

  1. 1南方医科大学,广东省广州市  510515;2南方医科大学第三附属医院,广东省骨科研究院,广东省广州市  510630
  • 修回日期:2017-02-27 出版日期:2017-07-18 发布日期:2017-07-28
  • 通讯作者: 蔡道章,教授,博士生导师,主任医师,南方医科大学,广东省广州市 510515;南方医科大学第三附属医院,广东省骨科研究院,广东省广州市 510630
  • 作者简介:卢键森,男,1990年生,广东省佛山市人,汉族,南方医科大学在读硕士,主要从事骨关节炎研究。
  • 基金资助:

    国家自然科学基金(81371990);国家自然科学基金(81601945);高等学校博士学科点专项科研基金(20124433110021);广东省医学科研基金(A2015422)

Expression and role of H-type vessels in the subchondral bone in the progression of osteoarthritis

Lu Jian-sen1, 2, Liu Xin1, 2, Zeng Chun1, 2, Zhao Chang2, Fang Hang2, Cai Dao-zhang1, 2   

  1. 1Southern Medical University, Guangzhou 510515, Guangdong Province, China; 2the Third Affiliated Hospital of Southern Medical University, Orthopedic Institute of Guangdong Province, Guangzhou 510630, Guangdong Province, China
  • Revised:2017-02-27 Online:2017-07-18 Published:2017-07-28
  • Contact: Cai Dao-zhang, Professor, Doctoral supervisor, Chief physician, Southern Medical University, Guangzhou 510515, Guangdong Province, China; the Third Affiliated Hospital of Southern Medical University, Orthopedic Institute of Guangdong Province, Guangzhou 510630, Guangdong Province, China
  • About author:Lu Jian-sen, Studying for master’s degree, Southern Medical University, Guangzhou 510515, Guangdong Province, China; the Third Affiliated Hospital of Southern Medical University, Orthopedic Institute of Guangdong Province, Guangzhou 510630, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81371990 and 81601945; the Doctoral Special Fund of Universities, No. 20124433110021; the Medical Research Foundation of Guangdong Province, No. A2015422

摘要:

文章快速阅读:

文题释义:
H-型血管:
是一种特殊的血管亚型,是伴随骨形成的一个重要血管。H-型血管主要分布在干骺端,而且随着年龄增长,这种血管逐渐减少,同时骨量也在减少。在骨质疏松模型的小鼠中,H-型血管也是在减少,证实H-型血管与新生骨有着密切的关系。
基质金属蛋白酶13:为软骨细胞分解代谢的基质金属蛋白酶,不仅能够反映关节软骨细胞Ⅱ型胶原的退化情况,而且还能够反映出关节软骨中蛋白多糖、Ⅳ型胶原、X型胶原、软骨骨素等成分的退化情况[31]。骨关节炎过程中,基质金属蛋白酶13升高可提示软骨细胞肥大、凋亡,软骨外基质退变,骨化形成,故其高表达可反映骨关节炎的严重程度。

 

摘要
背景:
H-型血管主要分布在骨骼干骺端,能促进骨量增多,加速骨的形成。
目的:观察骨关节炎发生发展过程中软骨下骨H-型血管的表达情况。
方法:8周龄健康清洁级C57小鼠随机分为实验组和假手术组。实验组小鼠行右侧膝关节内侧半月板切除诱导骨关节炎(MMx模型);假手术组小鼠则仅切开关节囊而不行内侧半月板切除。术后4周取膝关节标本进行组织学分析,番红O快绿染色评估软骨损伤程度。免疫荧光检测CD31、Emcn、基质金属蛋白酶13表达情况,苏木精-伊红染色观察软骨下骨改变情况,MicroCT分析软骨下骨骨量的变化。 
结果与结论:①与假手术组比较,实验组OARSI评分、软骨下骨CD31、Emcn共荧光、H-型血管、基质金属蛋白酶13荧光表达及软骨下骨骨量均显著升高(P < 0.05);②结果说明,骨关节炎过程中,软骨下骨的H-型血管增多,促进软骨下骨增生及重塑。

 

ORCID: 0000-0001-6159-0460(蔡道章)
 

关键词: 组织构建, 骨组织工程, 骨关节炎, 软骨下骨, 血管, H-型血管, 国家自然科学基金

Abstract:

BACKGROUND: H-type vessels are mainly distributed in the metaphysis, which can promote the proliferation of osteocytes, further accelerating osteogenesis.
OBJECTIVE: To investigate the expression of H-type vessels in the subchondral bone during the occurrence and development of osteoarthritis.
METHODS: 8-week-old C57 mice were randomly divided into experimental and sham groups, followed by the right medial menisectomy to establish the osteoarthritis models or only articular capsulotomy. The knee samples were removed at 4 weeks postoperatively, and were stained with safranin-O-fast green to evaluate the degree of injury. The expression levels of CD31, Emcn and matrix metalloproteinase 13 were detected by immunofluorescent staining. The changes of the subchondral bone were observed by hematoxylin-eosin staining and the changes of bone mass in the subchondral bone were analyzed by micro-CT.
RESULTS AND CONCLUSION: Compared with the sham group, the Osteoarthritis Research Society International scores, expression levels of CD31, Emcn, H-type vessels and matrix metalloproteinase 13, as well as the bone mass in the subchondral bone were significantly increased in the experimental group (P < 0.05). To conclude, the increased H-type vessels in the subchondral bone promote the hyperplasia and remodeling of subchondral bone in the progression of osteoarthritis.

 

 

Key words: Osteoarthritis, Cartilage, Blood Vessels, Tissue Engineering

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