中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (21): 3334-3340.doi: 10.3969/j.issn.2095-4344.2014.21.010

• 药物控释材料 drug delivery materials • 上一篇    下一篇

软骨下钻孔联合软骨源性形态发生蛋白缓释系统修复膝关节软骨缺损

王  浩1,王  伟2   

  1. 1辽宁医学院,辽宁省锦州市  121000;2锦州市中心医院,辽宁省锦州市  121000
  • 出版日期:2014-05-21 发布日期:2014-05-21
  • 通讯作者: 王伟,博士,主任医师,博士生导师,锦州市中心医院,辽宁省锦州市 121000
  • 作者简介:王浩,男,1973年生,辽宁省锦州市人,满族,辽宁医学院在读硕士,主任医师,主要从事关节软骨损伤与修复的研究。

Repairing articular cartilage defects using subchondral drilling and cartilage-derived morphogenetic protein delivery system

Wang Hao1, Wang Wei2   

  1. 1 Liaoning Medical University, Jinzhou 121000, Liaoning Province, China; 2 Jinzhou Central Hospital, Jinzhou 121000, Liaoning Province, China
  • Online:2014-05-21 Published:2014-05-21
  • Contact: Wang Wei, M.D., Chief physician, Doctoral supervisor, Jinzhou Central Hospital, Jinzhou 121000, Liaoning Province, China
  • About author:Wang Hao, Studying for master’s degree, Chief physician, Liaoning Medical University, Jinzhou 121000, Liaoning Province, China

摘要:

背景:有研究表明软骨源性形态发生蛋白等因子在诱导细胞分化、促进软骨修复过程中起到重要调节作用;软骨下钻孔治疗软骨缺损在临床已广为应用,但其与软骨源性形态发生蛋白等因子联合应用的相关研究至今少有报道。
目的:将软骨下钻孔技术与关节内注射透明质酸/软骨源性形态发生蛋白1缓释载药微球(hyaluronic acid- coated cartilage-derived morphogenetic protein-1,HA/CDMP-1)相结合,观察其对软骨缺损修复的效果,并通过与单纯钻孔组及HA/CDMP-1微球组治疗结果比较,观察两者有无协同效应。
方法:用透明质酸包被软骨源性形态发生蛋白制备缓释微球冻干保存,制备兔实验膝关节全层关节软骨缺损模型,随后将兔随机分为模型组、钻孔组、HA/CDMP-1微球组和钻孔联合HA/CDMP-1微球组,分别采用生理盐水关节腔注射,软骨缺损区钻孔,HA/CDMP-1微球关节腔注射,软骨下钻孔并HA/CDMP-1微球注射。
结果与结论:建模后8,12,16周,组织学观察结果提示,钻孔联合HA/CDMP-1微球组软骨缺损区修复组织覆盖面积明显高于其他3组(P < 0.05);甲苯胺蓝染色和荧光定量PCR检测显示,钻孔联合HA/CDMP-1微球组修复的软骨组织中蛋白多糖和Ⅱ型胶原mRNA的表达明显高于其他3组(P < 0.01或P < 0.05)。结果证实,软骨下钻孔与关节腔内注射HA/CDMP-1联合应用修复兔膝关节软骨缺损近期疗效满意,提示两者可能发生协同作用。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 软骨生物材料, 药物控释材料, 关节软骨, 软骨缺损, 软骨下钻孔, 软骨源性形态发生蛋白, 缓释微球

Abstract:

BACKGROUND: Cartilage-derived morphogenetic proteins have an important regulatory role in inducing cell differentiation and promoting cartilage repair. Subchondral drilling for treating cartilage defects in clinical practice has been widely used, but the related study on combined application of the cartilage-derived morphogenetic protein-1 (CDMP-1) and other factors is less.
OBJECTIVE: To combine the subchondral drilling technology with hyaluronic acid-coated CDMP-1 (HA/CDMP-1) microspheres for observation of their effects on the repair of cartilage defects, and meanwhile to compare the therapeutic effects among combination group, subchondral drilling group and HA/CDMP-1 group as well as to observe whether there is a synergistic effect. 
METHODS: HA/CDMP-1 microspheres were prepared and cryopreserved. Full-thickness articular cartilage defect models were prepared in rabbits, and then the model rabbits were divided into model group (intra-articular injection of normal saline), subchondral drilling group (subchondral drilling), HA/CDMP-1 group (intra-articular injection of HA/CDMP-1), combination group (subchondral drilling+intra-articular injection of HA/CDMP-1).
 RESULTS AND CONCLUSION: At 8, 12, 16 weeks after modeling, histological observations suggested that the coverage area of repair tissue was higher in the combination group than the other groups (P < 0.05). Toluidine blue staining and quantitative PCR showed that the mRNA expression of proteoglycan and type II collagen was also significantly higher than in the combination group than the other groups (P < 0.01 or P < 0.05). These findings indicate that the intra-articular injection of HA/CDMP-1 combined with subchondral drilling can promote the repair of articular cartilage damage effectively, suggesting a possible synergy between them.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: knee joint, cartilage, hyaluronic acid, bone morphogenetic proteins, rabbits

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