中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (27): 4338-4343.doi: 10.3969/j.issn.2095-4344.1382

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

早期膝骨性关节炎模型大鼠的建立与验证

何  强1,尹  宏2,代凤雷2,张  斌3,孙  欣2,曾  怿3,严一峰1   

  1.  (1南京中医药大学,江苏省南京市  210023;2南京中医药大学附属南京中医院骨科,江苏省南京市  210001;3扬州大学医学院附属六合医院骨科,江苏省南京市  211500)
  • 收稿日期:2019-03-28 出版日期:2019-09-28 发布日期:2019-09-28
  • 通讯作者: 尹宏,教授,主任医师,研究生导师,南京中医药大学附属南京中医院骨科,江苏省南京市 210001
  • 作者简介:何强,男,1993年生,黑龙江省泰来县人,汉族,南京中医药大学在读硕士,主要从事骨性关节炎研究。
  • 基金资助:

    南京市医学科技发展一般性课题(YKK17240),项目负责人:张斌

Establishment and verification of rat models of early knee osteoarthritis

He Qiang1, Yin Hong2, Dai Fenglei2, Zhang Bin3, Sun Xin2, Zeng Yi3, Yan Yifeng1   

  1.  (1Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; 2Department of Orthopedics, Nanjing Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210001, Jiangsu Province, China; 3Department of Orthopedics, Liuhe Hospital Affiliated to Yangzhou University Medical College, Nanjing 211500, Jiangsu Province, China)
  • Received:2019-03-28 Online:2019-09-28 Published:2019-09-28
  • Contact: Yin Hong, Professor, Chief physician, Master’s supervisor, Department of Orthopedics, Nanjing Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210001, Jiangsu Province, China
  • About author:He Qiang, Master candidate, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
  • Supported by:

    the Medical Science and Technology Development Project of Nanjing, No.YKK17240 (to ZB)

摘要:

文章快速阅读:

文题释义:

非侵入性方法诱导动物模型:是一种采用机械压头提供的冲击力导致关节内闭合性骨折。其优势在于:①由机械驱动,通过机械冲击造成伤害,无需任何化学或外科手术干预,因而不会导致动物皮肤破裂;②可以精确地创建损伤,这在传统方法中是不可行的;③结果具有高度可重复性;④可以给予每只动物的结果精确度;⑤能够去除任何手术干预的伪影,例如研究者的熟练程度和炎症变化或手术本身引起的因素;⑥密切模拟导致创伤后骨关节炎的人体损伤。
木瓜蛋白酶:是一种蛋白水解酶。木瓜蛋白酶产生早期的膝关节骨性关节炎模型的机制是通过影响细胞外基质中的蛋白多糖而损害胶原蛋白的整合。木瓜蛋白酶与其他化学诱导试剂相比优势在于对胶原蛋白和软骨细胞没有直接影响。
摘要
背景:
木瓜蛋白酶诱导膝关节骨性关节炎与其他化学诱导试剂相比优势在于对胶原蛋白和软骨细胞没有直接影响。
目的:通过软骨的表面形态、放射学和组织病理学进一步验证木瓜蛋白酶诱导大鼠早期膝关节骨性关节炎模型的有效性。
方法:20只成年雄性Wistar大鼠,由南京市江宁区青龙山动物繁殖场提供,实验方案经南京市六合区人民医院医学伦理委员会批准。将大鼠随机分成对照组和实验组:分别于实验开始后第1,4,7天,给予对照组右膝关节腔内注射4%生理盐水;实验组右膝关节腔内注射4%木瓜蛋白酶。实验开始后第10天观察关节软骨形态,行X射线、三维CT检查;之后麻醉下处死大鼠即刻进行组织病理学检查,并使用Mankins和OARSI评分验证结果。
结果与结论:①与对照组相比,实验组大鼠明显跛行,注射侧膝关节肿胀明显,后肢不愿着地;放射学检查可见明显关节间隙变窄,三维CT关节间隙值变小[对照组(0.680 0±0.016 3) mm,实验组(0.558 0±0.033 9) mm,P < 0.05];②实验组右膝关节组织显微镜下观察可见早期的炎症特征;2组病理学Mankins和OARSI评分差异均有显著性意义(P < 0.05);③结果说明,大鼠右膝关节腔内注射木瓜蛋白酶诱发的早期膝骨性关节炎可用于相关实验研究,因为它提供了关节运动、触觉异常性疼痛、进行性放射性变性和关节软骨微观炎症的可测量变化,代表了骨关节炎评估,为研究早期膝关节骨性关节炎的发病机制提供依据。

关键词: 大鼠模型, 早期膝骨性关节炎, 关节软骨, 木瓜蛋白酶

Abstract:

BACKGROUND: Papain inducing knee osteoarthritis has no direct effect on collagen and chondrocyte compared with other chemical inducers.
OBJECTIVE: To evaluate the effectiveness of early osteoarthritis model of knee joint in rats by the surface morphology, radiology and histopathology of cartilage.
METHODS: Twenty adult male Wistar rats were provided by Qinglongshan Animal Breeding Farm of Jiangning District, Nanjing, and the study was approved by the Ethics Committee of Liuhe Hospital Affiliated to Yangzhou University Medical College. The rats were randomly divided into control and experimental groups. At 1, 4 and 7 days, 4% normal saline and 4% papain were injected into the rat right knee joint cavity in the control and experimental groups, respectively. Rats were killed at 10 days. The articular cartilage morphology,X-ray and three-dimensional CT images were observed before the execution. Histopathological examination was performed immediately after the execution, and the results were verified by Mankins and OARSI scores.
RESULTS AND CONCLUSION: (1) Compared with the control group, in the experimental group, the limp was obvious, the knee joint swelling on the injection side was obvious, and the hind limbs were unwilling to land. Radiological examination showed that the joint space narrowed obviously, and the value of three-dimensional CT joint space was significantly decreased [(0.680 0±0.016 3)vs.(0.558 0±0.033 9) mm, P < 0.05]. (2) Microscopic examination showed early stage inflammation characteristics at the right knee joint in the experimental group. There were significant differences in the Mankins and OARSI scores (P < 0.05). (3) In summary, early knee osteoarthritis induced by intra-articular injection of papain into the right knee joint of rats can be used in relevant clinical studies, because it provides measurable changes in joint motion, tactile abnormal pain, progressive radiodegeneration and micro-inflammation of articular cartilage, representing the evaluation of osteoarthritis, and providing a basis for studying the pathogenesis of early knee osteoarthritis.

Key words:  rat model, early knee osteoarthritis, articular cartilage, papain

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