中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (14): 2205-2210.doi: 10.3969/j.issn.2095-4344.2594

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

富血小板血浆干预膝关节骨性关节炎模型兔关节软骨和滑膜的改变

邱  皓,陈诗谋,翁  政,朱  云,刘  盾,陈  渝   

  1. 重庆市第九人民医院创伤中心(骨科病区),重庆市  400700
  • 收稿日期:2019-07-10 修回日期:2019-08-21 接受日期:2019-10-24 出版日期:2020-05-18 发布日期:2020-03-15
  • 通讯作者: 陈渝,博士,主任医师,重庆市第九人民医院创伤中心(骨科病区),重庆市 400700
  • 作者简介:邱皓,男,1991年生,重庆市人,汉族,2014年重庆医科大学毕业,硕士,主要从事创伤骨科的研究。
  • 基金资助:
    重庆市北碚区科学技术委员会科研项目(2018-8)

Platelet-rich plasma interferes with changes in articular cartilage and synovium of rabbits with knee osteoarthritis

Qiu Hao, Chen Shimou, Weng Zheng, Zhu Yun, Liu Dun, Chen Yu   

  1. Center for Traumatology, Ninth People’s Hospital of Chongqing, Chongqing 400700, China
  • Received:2019-07-10 Revised:2019-08-21 Accepted:2019-10-24 Online:2020-05-18 Published:2020-03-15
  • Contact: Chen Yu, MD, Chief physician, Center for Traumatology, Ninth People’s Hospital of Chongqing, Chongqing 400700, China
  • About author:Qiu Hao, Master, Center for Traumatology, Ninth People’s Hospital of Chongqing, Chongqing 400700, China
  • Supported by:
    the Scientific Research Project of Chongqing Beibei District Science and Technology Commission, No. 2018-8

摘要:

文题释义:

富血小板血浆(PRP):1993年Hood等首先提出富血小板血浆概念,并发现富血小板血浆含有丰富的血小板,其数目比全血中数目高3倍以上。血小板中含有大量的生长因子,如血小板衍生生长因子、转化生长因子β、类胰岛素生长因子、表皮生长因子、血管内皮生长因子等。

Ⅱ型胶原纤维(COL Ⅱ):胶原纤维是关节软骨基质的重要组成结构之一,其中含量最多的Ⅱ型胶原纤维是构成软骨的基本框架,具有维持关节软骨的形态结构和抗张力强度的功能。基质金属蛋白酶为Ⅱ型胶原纤维的特异性降解酶,其中基质金属蛋白酶13降解Ⅱ型胶原纤维的速度是基质金属蛋白酶1的10倍。

背景:研究显示富血小板血浆具有很强的促进软骨细胞修复和增生作用。

目的:探讨富血小板血浆在骨性关节炎中对软骨细胞修复及滑膜炎症抑制的疗效。

方法:新西兰大白兔40只,于兔耳中央动脉取血后采用Hokugo等的方法制备富血小板血浆,同时检测外周血及富血小板血浆的血小板、血小板衍生生长因子、转化生长因子β和血管内皮生长因子水平。采用前交叉韧带切断法来制作动物模型后随机将兔分为实验组和对照组,实验组双侧膝关节每周注射1次0.3 mL 富血小板血浆;对照组每周注射1次0.3 mL无菌生理盐水,共注射10周。注射后第2,4,6,8,10周对兔进行大体观察及膝关节组织学观察;检测关节软骨Ⅱ型胶原蛋白及基质金属蛋白酶13水平,并进行软骨组织Mankin评分。实验方案经重庆医科大学动物实验伦理委员会批准。

结果与结论:①富血小板血浆中血小板、血小板衍生生长因子、转化生长因子β和血管内皮生长因子水平分别是正常血中的5.5,4.8,7.7和6.2倍(均P < 0.05);②注射后第6周实验组Mankin评分小于对照组(P < 0.05);③实验组第4,6,8,10周时Ⅱ型胶原蛋白水平明显高于对照组(P < 0.05);实验组第2,4,6,8,10周时基质金属蛋白酶13水平明显小于对照组(P < 0.05);④结果表明,关节腔内注射富血小板血浆能通过缓解关节滑膜炎症及延缓甚至阻断软骨细胞的损伤来抑制骨性关节炎的进展。

ORCID: 0000-0001-6301-4790(邱皓)

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

关键词: 生物材料, 软骨生物材料, 组织工程, 软骨缺损, 软骨细胞, 修复, 富血小板血浆, 骨性关节炎

Abstract:

BACKGROUND: Studies have shown that platelet-rich plasma has a strong role in promoting chondrocyte repair and proliferation.

OBJECTIVE: To investigate the efficacy of platelet-rich plasma in chondrocyte repair and synovial inflammation inhibition in osteoarthritis.

METHODS: The blood samples were extracted from the central artery of the ear in 40 New Zealand white rabbits and platelet-rich plasma was prepared by the method of Hokugo. The platelet, platelet-derived growth factor, transforming growth factor-β, vascular endothelial growth factor in the peripheral blood and platelet-rich plasma were detected simultaneously. Animal models were made by resection of anterior cruciate ligament and divided into experimental group and control group. In the experimental group, 0.3 mL of platelet-rich plasma was injected once a week for 10 weeks; in the control group, 0.3 mL of sterile saline was injected once a week for 10 weeks. Gross observation and histological observation of knee joints were performed; articular cartilage type II collagen and matrix metalloproteinase 13 levels were measured; and Mankin score of the cartilage tissue was performed at 2, 4, 6, 8, and 10 weeks after injection. The study protocol was approved by the Animal Experiment Ethics Committee of Chongqing Medical University.

RESULTS AND CONCLUSION: (1) The concentrations of platelet, platelet-derived growth factor, transforming growth factor-β, vascular endothelial growth factor in platelet-rich plasma were 5.5, 4.8, 7.7, and 6.2 times those of the peripheral blood, respectively. And there were significant differences between the platelet-rich plasma and peripheral blood (P < 0.05). (2) From the 6th week, the Mankin score of the experimental group was significantly lower than that of the control group (P < 0.05). (3) The expression of type II collagen protein in the experimental group was significantly higher than that in the control group at the 4th, 6th, 8th and 10th weeks after injection (P < 0.05). The expression of matrix metalloproteinase-13 was significantly lower than that in the control group at the 2nd, 4th, 6th, 8th and 10th week (P < 0.05). All these findings indicate that intra-articular injection of platelet-rich plasma can inhibit the development of osteoarthritis by alleviating synovial inflammation and delaying or blocking the damage of chondrocytes.

Key words: biomaterials, cartilage biomaterials, tissue engineering, cartilage defects, chondrocytes, repair, platelet-rich plasma, osteoarthritis

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