中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (31): 4992-4997.doi: 10.3969/j.issn.2095-4344.1984

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

硫化氢可对膝骨关节炎模型兔关节软骨发挥保护效应

李夏楠,田少奇,王远贺,刘江俊,丁  涛,褚国庆,孙  康   

  1. (青岛大学附属医院关节外科,山东省青岛市  266500)
  • 收稿日期:2019-05-08 出版日期:2019-11-08 发布日期:2019-11-08
  • 通讯作者: 孙康,博士,教授、博士生导师,青岛大学附属医院,山东省青岛市 266500
  • 作者简介:李夏楠,男,1992年生,山东省滨州市人,汉族,2019年青岛大学毕业,硕士,主要从事骨与关节疾病研究
  • 基金资助:

    国家自然科学基金项目(青年科学基金项目)(81702172),项目负责人:田少奇;青岛市民生科技计划项目 (17-3-3-12-nsh),项目负责人:孙康

Hydrogen sulfide protects articular cartilage in rabbit models of knee osteoarthritis

Li Xianan, Tian Shaoqi, Wang Yuanhe, Liu Jiangjun, Ding Tao, Chu Guoqing, Sun Kang   

  1.  (Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266500, Shandong Province, China)
  • Received:2019-05-08 Online:2019-11-08 Published:2019-11-08
  • Contact: Sun Kang, MD, Professor, Doctoral supervisor, Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266500, Shandong Province, China
  • About author:Li Xianan, Master, Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266500, Shandong Province, China
  • Supported by:

    the National Natural Science Foundation of China (Youth Foundation), No. 81702172 (to TSQ); the Qingdao Livelihood Science and Technology Program, No. 17-3-3-12-nsh (to SK)

摘要:

文章快速阅读:

文题释义:
胱硫醚β合成酶:是一种细胞质中的同源四聚体,在维生素B6的催化下,胱硫醚β合成酶能使丝氨酸与同型半胱氨酸合成胱硫醚,其催化L-半胱氨酸生成内源性H2S。
胱硫醚γ裂解酶:是一种参与半胱氨酸合成的酶,催化胱硫醚脱氨水解成半胱氨酸、α酮丁酸及氨,是心血管中产生的一种重要的内源性H2S酶,主要存在于血管平滑肌、内皮细胞中。
基质金属蛋白酶:是酶活性依赖锌离子蛋白酶超家族,是关节软骨基质降解最主要的蛋白水解系统。
摘要
背景:
H2S是重要的炎症调节因子,广泛存在于人体各组织器官中,在多个系统疾病中发挥着重要作用。
目的:通过研究兔膝骨关节炎模型中H2S对关节软骨退变的影响,探讨H2S对骨性关节炎的治疗作用。
方法:取32只新西兰大白兔随机分为空白对照组、骨性关节炎组、H2S干预组和抑制H2S生成组,每组8只。空白对照组不做处理,骨性关节炎组、H2S干预组和抑制H2S生成组以改良Hulth法建立骨性关节炎模型后,分别给予膝关节腔注射生理盐水、NaHS稀释液(60 μmol/L)、H2S合成酶抑制剂(氨基氧乙酸,37.5 mg/kg;炔丙基甘氨酸,60 mg/kg)各1 mL,1次/周,连续6周。实验方案于2018-03-01经青岛大学动物实验伦理委员会批准,批准号:AHQU-MAL2018032。
结果与结论:①病理变化:空白对照组关节软骨形态正常;骨性关节炎组关节软骨退变严重;H2S干预组关节软骨退变较轻;抑制H2S生成组关节软骨退变较骨性关节炎组更重;②Mankin’s评分:骨性关节炎组、H2S干预组和抑制H2S生成组评分较空白对照组均增加;H2S干预组较骨性关节炎组评分更低,抑制H2S生成组较骨性关节炎组评分高;③Ⅱ型胶原染色:与空白对照组比,骨性关节炎组Ⅱ型胶原阳性染色降低,分布不均;H2S干预组Ⅱ型胶原阳性染色较骨性关节炎组表达增多;抑制H2S生成组Ⅱ型胶原阳性染色降低且表浅层出现缺损;④与骨性关节炎组比较,H2S干预组关节软骨中基质金属蛋白酶1、基质金属蛋白酶3与基质金属蛋白酶13 mRNA表达水平降低;抑制H2S生成组上述mRNA表达水平增加。结果说明,H2S可以抑制关节软骨中基质金属蛋白酶1、基质金属蛋白酶3与基质金属蛋白酶13 mRNA的表达水平,减少关节软骨Ⅱ型胶原蛋白降解,对骨关节炎中的关节软骨有保护作用。

关键词: 骨性关节炎, 硫化氢, Ⅱ型胶原蛋白, 基质金属蛋白酶, 兔, 关节软骨, 软组织构建, 组织工程

Abstract:

BACKGROUND: H2S is an important inflammatory regulator, which widely exists in various tissues and organs of human body and plays an important role in many systemic diseases.
OBJECTIVE: To investigate the effect of H2S on articular cartilage degeneration in rabbit knee osteoarthritis model and to explore the therapeutic effect of H2S on osteoarthritis.
METHODS: Thirty-two New Zealand white rabbits were randomly divided into four groups: blank control, osteoarthritis, H2S, and H2S inhibition groups (n=8/group). Blank control group was not treated, the other three groups were used to establish the osteoarthritis model by modified Hulth method, and were then injected with normal saline, NaHS diluent (60 μmol/L) and H2S synthase inhibitor (aminooxyacetic acid, 37.5 mg/kg; propargylglycine, 60 mg/kg) 1 mL each into the knee joint cavity once a week for 6 weeks. The study was approved by the Laboratory Animal Ethical Committee of Qingdao University, approval No. AHQU-MAL2018032.
RESULTS AND CONCLUSION: (1) Pathological changes: the morphology of articular cartilage in the blank control group was normal; the degeneration of articular cartilage in the osteoarthritis group was serious; the degeneration of articular cartilage in the H2S group was mild; and the degeneration of articular cartilage in the H2S inhibition group was more serious than that in the osteoarthritis group. (2) Mankin’s score showed that the scores in the osteoarthritis, H2S and H2S inhibition groups were significantly higher than those in the blank control group (P < 0.05); the scores in the H2S group were lower than those in the osteoarthritis group, and the scores in the H2S inhibition group were significantly higher than those in the osteoarthritis group (P < 0.05). (3) Type II collagen staining showed that compared with the blank control group, the positive staining of type II collagen in the osteoarthritis group was significantly lower and unevenly distributed; the positive staining of type II collagen in H2S group was higher than that in osteoarthritis group; the positive staining of type II collagen in H2S inhibition group was significantly lower and the superficial layer was defective. (4) Compared with the osteoarthritis group, the mRNA expression levels of matrix metalloproteinase-1, matrix metalloproteinase-3 and matrix metalloproteinase-13 in articular cartilage were decreased in the H2S group, and increased in the H2S inhibition group compared with the osteoarthritis group. (5) These results show that H2S can inhibit the mRNA expression of matrix metalloproteinase-1, matrix metalloproteinase-3 and matrix metalloproteinase-13 in articular cartilage, reduce the degradation of type II collagen in articular cartilage, and protect articular cartilage in osteoarthritis.

Key words: osteoarthritis, hydrogen sulfide, type II collagen, matrix metalloproteinase, rabbits, articular cartilage, soft tissue construction, tissue engineering

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