中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (8): 1237-1242.doi: 10.3969/j.issn.2095-4344.3042

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

早期骨关节炎模型大鼠半月板白区细胞的超微结构变化

刘翔翔1,2,黄云梅1,3,陈文列1,3,林如辉1,4,卢小冬2,李钻芳1,4,许亚晔5,黄美雅1,4,李西海1,3   

  1. 福建中医药大学,1中西医结合研究院,2药学院,福建省福州市  350122;3国家中医药三级科研实验室-中药药理(细胞结构与功能)实验室,福建省福州市  350122;4福建省中西医结合老年性疾病重点实验室,福建省福州市  350122;5福建中医药大学附属人民医院影像科,福建省福州市  350004
  • 收稿日期:2020-04-10 修回日期:2020-04-17 接受日期:2020-06-05 出版日期:2021-03-18 发布日期:2020-12-12
  • 通讯作者: 陈文列,研究员,硕士生导师,福建中医药大学中西医结合研究院,福建省福州市 350122;国家中医药三级科研实验室-中药药理(细胞结构与功能)实验室,福建省福州市 350122
  • 作者简介:刘翔翔,男,1997年生,福建省政和县人,汉族,在读硕士,主要从事中药药理与毒理的研究。
  • 基金资助:
    福建省科技厅科技平台建设项目(2015Y2001-57)

Ultrastructural changes of the white zone cells of the meniscus in a rat model of early osteoarthritis

Liu Xiangxiang1, 2, Huang Yunmei1, 3, Chen Wenlie1, 3, Lin Ruhui1, 4, Lu Xiaodong2, Li Zuanfang1, 4, Xu Yaye5, Huang Meiya1, 4, Li Xihai1, 3   

  1. 1Academy of Integrative Medicine,2College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fujian Province, China;3National Laboratory of Traditional Chinese Medicine Pharmacology (Cell Structure and Function), Fujian Province, China;4Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian Province, China;5Department of Imaging, The People’s Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fujian Province, China

  • Received:2020-04-10 Revised:2020-04-17 Accepted:2020-06-05 Online:2021-03-18 Published:2020-12-12
  • Contact: Chen Wenlie, Researcher, Master’s supervisor, Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China; National Laboratory of Traditional Chinese Medicine Pharmacology (Cell Structure and Function), Fuzhou 350122, Fujian Province, China
  • About author:Liu Xiangxiang, Master candidate, Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China; College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
  • Supported by:
    Science and Technology Platform Construction Project of Fujian Science and Technology Department, No. 2015Y2001-57

摘要:

文题释义:
早期骨关节炎:骨性关节炎是一种关节退行性病变,其中膝关节是最常见的,伴有关节疼痛、肿胀等表现。由于骨关节炎具有高度侵袭性、不可逆性特点,在更多组织发生不可逆性病变前(即早期),早期诊治、预防是控制疾病、降低危害的有效办法。
半月板白区:半月板内缘区域组织,无血管分布,营养来源于关节滑液,损伤后难以愈合,易发生退变,是膝骨关节炎的重要诱因之一。

背景:目前膝骨关节炎的研究重点多在关节软骨、软骨下骨及滑膜,国内外对动物模型半月板超微结构的研究较少。
目的:在观察半月板白区软骨细胞超微结构及其类型基础上,观察早期骨关节炎动物模型半月板白区细胞超微结构变化,探讨半月板微观结构变化与生理功能改变的关系。  
方法:SD大鼠分空白对照组、模型组。模型组通过膝关节腔注射木瓜蛋白酶制作早期骨关节炎动物模型;造模5周后取半月板,电镜制样、定位,观察白区细胞超微结构。实验方案经福建中医药大学动物实验伦理委员会批准。
结果与结论:①空白对照组大鼠半月板白区浅表层细胞多呈梭形,里层细胞多呈类三角形,含有丰富的粗面内质网、线粒体,并见高尔基体等细胞器;细胞周围胶原原纤维主要为有序密集的Ⅱ型胶原原纤维;半月板白区细胞为透明软骨细胞。模型组半月板组织表面粗糙;细胞肿胀,粗面内质网等细胞器减少且肿胀变性,糖原蓄积;细胞核多有变形,异染色质凝集;细胞周围胶原原纤维变得杂乱而稀疏;②结果提示,早期骨关节炎半月板软骨细胞与基质轻度退变,将使细胞合成分泌基质成分的能力降低,半月板生理功能将受到影响。

https://orcid.org/0000-0002-4934-6227 (刘翔翔) 
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: 半月板, 骨关节炎, 早期, 白区, 软骨细胞, 超微结构, 电镜,

Abstract: BACKGROUND: The research focuses of knee osteoarthritis are on mainly articular cartilage, subchondral bone and synovium. There are few studies on the ultrastructure of the meniscus in animal models.
OBJECTIVE: On the basis of observing the ultrastructure and types of chondrocytes in the white zone of the meniscus, to observe the ultrastructural changes of the white zone cells of the meniscus in an animal model of early osteoarthritis, in order to explore the relationship between the microstructural changes and the physiological functional changes in the meniscus.
METHODS: Sprague-Dawley rats were randomly divided into a control group and a model group. Rats in the model group were made into the model of early knee osteoarthritis by intraarticular injection of papain. After 5 weeks, the meniscuses of three rat models in each group were taken, located and observed for the ultrastructure of the white zone cells through a transmission electron microscope. An ethics approval was obtained from the Animal Ethics Committee of Fujian University of Traditional Chinese Medicine.
RESULTS AND CONCLUSION: In the control group, most of cells were fusiform in the superficial layer of meniscus and were triangular-like in the deeper layer. They were rich in rough endoplasmic reticulum and mitochondria, with presence of Golgi and other organelles. Extracellular collagen fibrils were mainly type II collagen fibrils. The cells in the white zone of meniscus were chondrocytes. In the model group, the meniscal surface became rough, the cells were swollen, cytoplasmic organelles were reduced and swollen, glycogen was accumulated, and most of nuclei were abnormal with heterochromatin agglutination. Extracellular collagen fibrils became disordered and sparse. These findings indicate that the mild degeneration of chondrocytes and matrix in the meniscus can reduce the ability of cells to synthesize and secrete matrix components, which may lead to the physiological hypofunction.

Key words: meniscus, osteoarthritis, early, white zone, chondrocyte, ultrastructure, electron microscopy, rat

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