中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (11): 1714-1719.doi: 10.12307/2022.356

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

针刺结合艾灸调节骨关节炎模型大鼠滑膜昼夜节律蛋白的表达

谈  倩1,李柏村1 ,李  静1,李  佳2,向宏春1,蔡国伟1   

  1. 1华中科技大学同济医学院附属协和医院针灸科,湖北省武汉市   430022;2湖北中医药大学针灸骨伤学院/针灸治未病湖北省协同创新中心,湖北省武汉市   430061
  • 收稿日期:2021-04-12 修回日期:2021-04-15 接受日期:2021-06-01 出版日期:2022-04-18 发布日期:2021-12-11
  • 通讯作者: 蔡国伟,主任医师,硕士生导师,华中科技大学同济医学院附属协和医院针灸科,湖北省武汉市 430022
  • 作者简介:谈倩,女,1995年生,汉族,湖北省武汉市华中科技大学同济医学院在读硕士,主要从事针灸治疗骨关节病研究。
  • 基金资助:
    国家自然科学基金课题(81774410),项目负责人:蔡国伟,项目名称:基于软骨细胞骨架蛋白探讨温针灸对骨关节炎的调节作用;湖北省卫健委项目(ZY2021M018),项目负责人:蔡国伟,项目名称:温针灸对骨关节炎大鼠微循环的调控作用

Acupuncture combined with moxibustion regulates the expression of circadian clock protein in the synovium of rats with osteoarthritis

Tan Qian1, Li Bocun1, Li Jing1, Li Jia2, Xiang Hongchun1, Cai Guowei1   

  1. 1Department of Acupuncture and Moxibustion, Union Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China; 2College of Acupuncture and Orthopedics, Hubei University of Chinese Medicine, Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and Moxibustion, Wuhan 430061, Hubei Province, China
  • Received:2021-04-12 Revised:2021-04-15 Accepted:2021-06-01 Online:2022-04-18 Published:2021-12-11
  • Contact: Cai Guowei, Chief physician, Master’s supervisor, Department of Acupuncture and Moxibustion, Union Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
  • About author:Tan Qian, Master candidate, Department of Acupuncture and Moxibustion, Union Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81774410 (to CGW); Hubei Provincial Health Commission Project, No. ZY2021M018 (to CGW)

摘要:

文题释义:
Clock蛋白:Clock是昼夜节律的核心调控蛋白,其由Clock基因编码,在各个器官和组织中表达。Clock的C端与组蛋白乙酰化酶具有同源性,它能催化组蛋白H3及脑和肌肉组织芳香烃受体核转运蛋白的类似蛋白1(Bmal1)的乙酰化,且Bmal1的乙酰化必须有Clock的参与。
Bmal1蛋白:Bmal1蛋白是调节生物节律的一种非常重要的转录因子,在时钟体系中发挥着重要的作用,可以和Clock蛋白相结合形成异二聚体,共同发挥调控昼夜节律的作用,并间接参与炎症反应。
TRPV4蛋白:TRPV4是TRP家族的成员之一,维持细胞内Ca2+平衡等生理过程,可以被温热性刺激、低渗性、化学物刺激及机械刺激等活化,由于其与其他TRP家族的成员相比具有对机械刺激敏感的特点,TRPV4常被认为是机械痛觉过敏发生机制中的重要分子。

背景:滑膜炎症是膝骨性关节炎的主要病理特征之一,既往研究表明针灸治疗膝骨性关节炎效果显著,而针灸是否通过调控滑膜中的相关蛋白改善相关症状值得进一步研究。
目的:探讨针刺结合艾灸对膝骨性关节炎大鼠滑膜组织中的生物钟蛋白(Clock、Bmal1)、TRPV4和炎症因子白细胞介素1β的影响。
方法:80只3月龄SPF级雄性SD大鼠随机分为对照组、模型组、针刺组、针+灸组,每组20只,后3组以手术方法制备膝骨关节炎大鼠模型,于术后第7天取右膝足三里(ST36)、犊鼻(ST35)和内膝眼(EX-LE5)进行治疗,针刺组针刺5 mm,15 min/次,1次/d,共21 d;针+灸组治疗同针刺组,并结合悬起灸。所有大鼠相应处理结束后,采用旷场实验测大鼠自发活动能力;苏木精-伊红染色观察滑膜组织病理结构;Western blot检测滑膜组织Clock,Bmal1,TRPV4的表达;免疫荧光法检测滑膜组织白细胞介素1β的表达。
结果与结论:①与对照组比较,模型组大鼠自发活动明显降低,其滑膜组织Clock及Bmal1表达量明显降低,TRPV4和炎性因子白细胞介素1β的表达明显升高(P < 0.01),并且滑膜上皮损失严重。②与模型组比较,针刺和针+灸均能显著改善大鼠自发活动,提高骨关节炎大鼠滑膜组织中Clock及Bmal1蛋白表达水平(P < 0.05),降低TRPV4和白细胞介素1β的表达(P < 0.05),改善滑膜上皮损失程度;与针刺组相比,针+灸组改善更为明显(P < 0.05)。③相对于针刺,针刺结合艾灸更能有效调节膝骨关节炎大鼠关节炎性损伤状况,降低滑膜细胞TRPV4的表达,促进骨关节炎大鼠滑膜组织中Clock,Bmal1的表达,从而调节滑膜细胞生物钟,降低炎性因子的表达,减缓膝骨关节炎的退变。
缩略语:瞬时受体电位香草素受4型通道蛋白:transient receptor potential vanilloid 4,TRPV4

https://orcid.org/0000-0002-1472-3926 (谈倩)

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: 针灸, 足三里, 膝骨关节炎, 生物钟, Clock, Bmal1, TRPV4, 白细胞介素1β

Abstract: BACKGROUND: Synovitis is one of the main pathological features of knee osteoarthritis. Previous studies have shown that acupuncture has a significant effect on knee osteoarthritis. Whether acupuncture can relieve the symptoms by regulating the related proteins in synovium is worthy of further study. 
OBJECTIVE: To investigate the effects of acupuncture combined with moxibustion on circadian clock proteins (Clock, Bmal1), TRPV4, and interleukin-1β in the synovium of rats with osteoarthritis. 
METHODS: Eighty 3-month-old male Sprague-Dawley rats were randomly divided into four groups: control group, model group, acupuncture group and acupuncture combined with moxibustion group (n=20 per group). Rat models of osteoarthritis were prepared by surgery in the latter three groups. Rats in the acupuncture group were treated with manual acupuncture at Zusanli (ST36), Dubi (ST35), and Neixiyan (EX-LE5) acupoints on the 7th day of modeling, at a depth of 5 mm, 15 minutes once a day, totally for 21 days. Rats in the acupuncture combined with moxibustion group were treated with acupuncture (same as that in the acupuncture group) combined with moxibustion. After corresponding treatments, the spontaneous activity ability of the rats was measured by an open field test. The pathological structure of the synovium was observed by hematoxylin-eosin staining. The expression of Clock, Bmal1 and transient receptor potential vanilloid 4 (TRPV4) in the synovium was detected by western blot. The expression of interleukin-1β in the synovium was detected by immunofluorescence labeling. 
RESULTS AND CONCLUSION: Compared with the control group, the expression of Clock and Bmal1 in the synovium was significantly decreased (P < 0.01), the levels of interleukin-1β and TRPV4 in the synovium were significantly increased (P < 0.05), and moreover severer loss of synovial epithelium was observed in the model group. Compared with the model group, acupuncture and acupuncture combined with moxibustion could significantly improve the spontaneous activity ability of the rats, increase the expression of Clock and Bmal1 (P < 0.05), decrease the levels of interleukin-1β and TRPV4 in the rat synovium  (P < 0.05), and relieve the loss of synovial epithelium. Compared with the acupuncture group, these changes were more obvious in the acupuncture combined with moxibustion group (P < 0.05). To conclude, relative to acupuncture alone, acupuncture combined with moxibustion can effectively regulate arthritic injury in knee osteoarthritis rats, reduce the expression of TRPV4 in synovial cells, promote the expression of Clock and Bmal1 in the synovium, thereby regulating the circadian clock in synovial cells, reducing the expression of inflammatory factors and slowing the degeneration of knee osteoarthritis.

Key words: acupuncture, Zusanli, knee osteoarthritis, circadian clock, Clock, Bmal1, TRPV4, interleukin-1β

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