中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (11): 1662-1668.doi: 10.3969/j.issn.2095-4344.1139

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

火针刺激骨关节炎模型兔犊鼻、内膝眼穴位后软骨细胞外基质及Wnt信号通路的变化

奥晓静,苗  茂,谭亚芹,郝  华   

  1. (内蒙古医科大学中医学院,内蒙古自治区呼和浩特市  010059)
  • 出版日期:2019-04-18 发布日期:2019-04-18
  • 基金资助:

    内蒙古自治区高等学校科学研究项目(NJZY17109),项目负责人:郝华

Changes of cartilage extracellular matrix and Wnt singling pathway in rabbit models of osteoarthritis after treatment by fire-needle moxibustion at Dubi and Neixiyan

Ao Xiaojing, Miao Mao, Tan Yaqin, Hao Hua   

  1.  (College of Traditional Chinese Medicine, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China)
  • Online:2019-04-18 Published:2019-04-18
  • Supported by:

    the Scientific Research Project of Universities in Inner Mongolia Autonomous Region, No. NJZY17109 (to HH)

摘要:

文章快速阅读:

文题释义:
Wnt信号通路:1982年在小鼠乳腺癌发现了Wnt基因,由于此基因激活依赖小鼠乳腺癌相关病毒基因的插入,因此,当时被命名为Int1基因,之后的研究表明,Int1基因在小鼠正常胚胎发育中起重要作用,相当于果蝇的无翅(Wingless)基因,可控制胚胎的轴向发育。此后大量研究提示了Int1基因在神经系统胚胎发育中的重要性,因此将Wingless与Int1结合,称为Wnt基因。人Wnt基因定位于12q13.在胚胎发育中,Wnt基因调控的重要信号传导系统即为Wnt通路。
火针:较为常见的一种针刺方法,该疗法汇集了毫针激发经气、火气温阳散寒的功效,可以直接刺激病灶的反应点,迅速消除或改善局部组织水肿、充血、渗出、粘连、钙化、挛缩、缺血等病理变化,从而加快循环、促进代谢,使受损组织和神经重新修复,治疗效果明显。

摘要
背景
:针灸能够改善骨关节炎的关节症状、降低炎症反应。火针属于针灸的一种,有学者报道称火针能够治疗骨关节炎,疗效确切,但具体机制尚不明确。
目的:明确火针刺激犊鼻、内膝眼对兔骨关节炎模型作用效应及具体机制。
方法:4月龄新西兰大白兔32只,购自上海斯莱克实验动物有限责任公司。实验分为4组:假手术对照组、骨关节炎组、西药治疗组、火针治疗组。除假手术对照组外,其他3组兔通过高分子固定带固定新西兰兔右膝的方法制造膝关节骨性关节炎模型,造模开始后的第7天,分别用玻璃酸钠、火针刺激犊鼻及内膝眼对西药治疗组、火针治疗组家兔进行治疗,每隔3 d治疗1次,连续6次。疗程结束后采用ELISA法测定各组家兔血清中基质金属蛋白酶1、金属蛋白酶组织抑制剂1水平;番红-O染色用于骨关节炎组织学评估,Mankin评分评估骨关节炎模型;定量PCR和Western-blotting检测软骨组织中Wnt信号通路的变化。
结果与结论:①西药治疗组、火针治疗组家兔软骨Mankin评分及组织学染色显示,软骨退化水平相较于模型组有下调趋势;②经治疗后,西药治疗组、火针治疗组家兔血清中基质金属蛋白酶1和金属蛋白酶组织抑制剂1表达较骨关节炎组分别出现显著的降低和显著升高(P < 0.05);③西药治疗组、火针治疗组家兔软骨中基质金属蛋白酶1、金属蛋白酶组织抑制剂1及Wnt信号通路分子β-catenin的mRNA和蛋白表达相较于模型组分别有下调、上调及下调的趋势,差异有显著性意义;④结果说明,火针刺激犊鼻、内膝眼是治疗膝关节骨性关节炎的一种简便有效方法,其作用机制可能是通过降低血清中异常升高的基质金属蛋白酶1水平,调节基质金属蛋白酶1和金属蛋白酶组织抑制剂1比例关系,调节细胞外基质的降解过程及影响Wnt信号通路,从而减缓软骨退变的进程。

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
ORCID: 0000-0002-1824-1692(奥晓静)

关键词: 骨关节炎, Wnt信号通路, 火针, 基质金属蛋白酶

Abstract:

BACKGROUND: Acupuncture and moxibustion can improve the articular symptoms of osteoarthritis and alleviate inflammatory reaction. Fire-needle moxibustion has been reported to treat osteoarthritis, showing exact efficacy, but the underlying mechanism remains unclear.
OBJECTIVE: To clarify the effect of fire-needle moxibustion at Dubi (ST 35) and Neixiyan on the rabbit models of osteoarthritis, and the underlying mechanism.
METHODS: Thirty-two 4-month-old New Zealand rabbits were selected (provided by Shanghai Slac Laboratory Animals Co., Ltd.). There were four groups, including sham operation, osteoarthritis, Western medicine, and fire-needle moxibustion groups. The rabbit knees in the latter three groups were fixed using polymer fixing band to establish the model of knee osteoarthritis. Seven days later, the rabbits were treated by sodium hyaluronate, and fire-needle moxibustion at Dubi and Neixiyan, respectively, for 6 consecutive courses with 3 days in between. The levels of matrix metalloproteinase-1 and tissue inhibitor of metalloproteinase-1 in serum of rabbits in each group were determined by ELISA after treatment. Safranin-O staining was used for osteoarthritis histological evaluation. Mankin score was used to evaluate osteoarthritis model. Changes of Wnt signaling pathway in cartilage tissues were detected by qualified PCR and western blot assay. 
RESULTS AND CONCLUSION: Mankin score and histological staining results showed that the cartilage degradation level in the Western medicine, and fire-needle moxibustion groups was downregulated compared with the osteoarthritis group. After treatment, compared with the osteoarthritis group, the serum levels of matrix metalloproteinase-1 and tissue inhibitor of metalloproteinase-1 were significantly decreased and increased in the Western medicine and fire-needle moxibustion groups, respectively (P < 0.05). The levels of matrix metalloproteinase-1 and tissue inhibitor of metalloproteinase-1, and β-catenin mRNA and protein in cartilage in the Western medicine and fire-needle moxibustion groups were significantly lower, higher and lower than those in the osteoarthritis group, respectively. These results indicate that fire-needle moxibustion at Dubi and Neixiyan is a simple and effective method for knee osteoarthritis. The mechanism may be through reducing the abnormally increased metalloproteinase-1 level, regulating ratio of metalloproteinase-1 and tissue inhibitor of metalloproteinase-1, regulating the degradation process of extracellular matrix and affecting the Wnt signaling pathway, thereby alleviating the progression of cartilage degeneration.

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

Key words: Osteoarthritis, Signal Transduction, Matrix Metalloproteinases, Tissue Engineering

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