中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (32): 5190-5195.doi: 10.12307/2024.513

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

针刀调控线粒体途径软骨细胞凋亡防治大鼠膝骨关节炎

卢梦雅1,伍  闲1,佘泽宇1,夏  帅1,卢  曼1,杨永晖2   

  1. 1安徽中医药大学研究生院,安徽省合肥市  230038;2安徽省针灸医院骨伤科,安徽省合肥市  230061
  • 收稿日期:2023-08-31 接受日期:2023-10-21 出版日期:2024-11-18 发布日期:2023-12-29
  • 通讯作者: 杨永晖,教授,主任医师,博士生导师,安徽省针灸医院骨伤科,安徽省合肥市 230061
  • 作者简介:卢梦雅,女,1994年生,安徽省广德市人,汉族,硕士在读,主要从事针刀医学基础与临床研究。
  • 基金资助:
    2022年度安徽省中医药传承创新科研项目(2022CCZC03),项目负责人:杨永晖;2022年度安徽省高校科研项目(2022AH050499),项目负责人:杨永晖;2022年国家重大疾病治疗专科针灸科项目(622WCS2022),项目参与人:杨永晖

Acupotomy prevents knee osteoarthritis in rats by modulating chondrocyte apoptosis in the mitochondrial pathway

Lu Mengya1, Wu Xian1, She Zeyu1, Xia Shuai1, Lu Man1, Yang Yonghui2   

  1. 1Graduate School of Anhui University of Chinese Medicine, Hefei 230038, Anhui Province, China; 2Department of Orthopedics and Traumatology, Anhui Acupuncture and Moxibustion Hospital, Hefei 230061, Anhui Province, China
  • Received:2023-08-31 Accepted:2023-10-21 Online:2024-11-18 Published:2023-12-29
  • Contact: Yang Yonghui, Professor, Chief physician, Doctoral supervisor, Department of Orthopedics and Traumatology, Anhui Acupuncture and Moxibustion Hospital, Hefei 230061, Anhui Province, China
  • About author:Lu Mengya, Master candidate, Graduate School of Anhui University of Chinese Medicine, Hefei 230038, Anhui Province, China
  • Supported by:
    2022 Anhui Traditional Chinese Medicine Inheritance and Innovation Research Project No. 2022CCZC03 (to YYH); 2022 Anhui University Research Project, No. 2022AH050499 (to YYH); 2022 National Specialty Acupuncture for the Treatment of Major Diseases Project, No. 622WCS2022 (to YYH [project participant])

摘要:


文题释义:

软骨细胞:是关节软骨中主要的细胞成分,当软骨细胞处于病理状态无法发挥正常功能或凋亡时就不能适当地再生和重塑软骨,最终导致关节软骨衰竭,诱发关节疾病。减少软骨细胞凋亡、恢复软骨功能对于减缓膝骨关节炎的发生发展是至关重要的。
线粒体途径的细胞凋亡:细胞凋亡信号通路可以分为细胞内信号诱导的线粒体途径及细胞外信号触发的死亡受体途径,其中线粒体途径的凋亡信号主要由Bcl-2家族成员通过调节线粒体膜的通透性进行调控。


背景:针刀治疗膝骨关节炎的疗效确切,但其作用机制并不十分明确。

目的:基于破骨细胞相关受体-肿瘤坏死因子相关的凋亡诱导配体-骨保护素(OSCAR-TRAIL-OPG)途径分析针刀对膝骨关节炎大鼠膝关节软骨细胞凋亡的影响。
方法:采用随机数字表法将27只SD大鼠分为正常组(9只)、模型组(9只)、针刀组(9只),正常组大鼠常规饲养,不进行任何处理;模型组、针刀组采用膝关节内注射木瓜蛋白酶建立左后肢膝骨关节炎模型,造模成功后给予针刀组大鼠针刀干预,1次/周,共3次。干预结束后进行相关检测。

结果与结论:①与正常组相比,模型组大鼠Lequesne MG行为学评分升高(P < 0.01);与模型组相比,针刀组大鼠Lequesne MG行为学评分降低(P < 0.01)。②苏木精-伊红染色显示与正常组相比,模型组大鼠膝关节软骨表面磨损且不平整,软骨细胞肿胀、破裂且数量减少,细胞排列杂乱;针刀组大鼠膝关节软骨表面较为平整,软骨细胞数量较多且排列较规整,结构基本清晰。③免疫组化染色显示与正常组相比,模型组大鼠膝关节软骨组织中OSCAR、TRAIL阳性表达增加(P < 0.01),OPG阳性表达减少(P < 0.01);与模型组相比,针刀组大鼠膝关节软骨组织中OSCAR、TRAIL阳性表达减少(P < 0.01),OPG阳性表达增加(P < 0.01)。④TUNEL染色显示与正常组相比,模型组软骨细胞凋亡数量增加(P < 0.01);与模型组相比,针刀组软骨细胞凋亡数量减少(P < 0.01)。⑤RT-qPCR与Western blot检测显示与正常组相比,模型组大鼠关节软骨组织中OSCAR、TRAIL、Bax表达升高(P < 0.01),OPG、Bcl-2表达降低(P < 0.01);与模型组相比,针刀组大鼠关节软骨组织中OSCAR、TRAIL、Bax表达降低(P < 0.01),OPG、Bcl-2表达升高(P < 0.01)。⑥针刀干预可减轻膝骨关节炎大鼠关节软骨组织损伤,该作用可能与OSCAR-TRAIL-OPG通路阻断线粒体途径凋亡信号释放有关。

https://orcid.org/0009-0002-5260-5303(卢梦雅)

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: 针刀, 膝骨关节炎, 软骨细胞凋亡, 破骨细胞相关受体, 肿瘤坏死因子相关的凋亡诱导配体, 骨保护素, 大鼠

Abstract: BACKGROUND: Acupotomy is effective in the treatment of knee osteoarthritis, but its mechanism is not very clear. 
OBJECTIVE: To observe the effect of acupotomy on the apoptosis of knee chondrocytes in knee osteoarthritis rats based on osteoclast associated receptor (OSCAR)-tumor necrosis factor-associated apoptosis-inducing ligand (TRAIL)-osteoprotetin (OPG) pathway. 
METHODS: Twenty-seven Sprague-Dawley rats were randomly divided into normal group (n=9), model group (n=9) and acupotomy group (n=9). Rats in the normal group were routinely housed without any treatment. Animal models of knee osteoarthritis were established by knee injection of papain. Acupotomy intervention was performed 1 week after modeling, once a week for a total of three times. Relevant tests were performed at the end of the intervention.
RESULTS AND CONCLUSION: The Lequesne MG behavioral scores of rats in the model group were elevated  compared with the normal group (P < 0.01), while the Lequesne MG behavioral scores of rats in the acupotomy group were decreased comparedwith the model group (P < 0.01). Hematoxylin-eosin staining results showed that compared with the normal group, the cartilage surface of the rat’s knee joints in the model group was worn and uneven and the chondrocytes were swollen, ruptured, reduced in number, and arranged disorderly; while the cartilage surface of the rat’s knee joints in the acupotomy group was relatively smooth, and the chondrocytes were high in number and arranged in an orderly manner, with the structure basically clear. Immunohistochemical staining results showed that compared with the normal group, the positive expressions of OSCAR and TRAIL were increased in the model group (P < 0.01), while the positive expression of OPG was decreased (P < 0.01). Compared with the model group, the positive expressions of OSCAR and TRAIL in the acupotomy group were decreased (P < 0.01), while the positive expression of OPG was increased (P < 0.01). TUNEL staining results showed that compared with the normal group, the number of apoptotic cells in the model group were increased (P < 0.01); compared with the model group, the number of apoptotic cells in the acupotomy group decreased (P < 0.01). RT-qRCR and western blot results showed that compared with the normal group, the protein expressions of OSCAR, TRAIL and Bax in the model group were increased (P < 0.01), and the protein expressions of OPG and Bcl-2 were decreased (P < 0.01); compared with the model group, the protein expressions of OSCAR, TRAIL, and Bax in the acupotomy group were decreased (P < 0.01), and the protein expressions of OPG and Bcl-2 were increased (P < 0.01). To conclude, acupotomy can reduce cartilage injury of the knee joint in rats with knee osteoarthritis, which may be related to the blockage of mitochondrial pathway apoptotic signaling release by the OSCAR-TRAIL-OPG pathway.

Key words: acupotomy, knee osteoarthritis, apoptosis of chondrocytes, osteoclast related receptor, tumor necrosis factor-related apoptosis-inducing ligand, osteoprotegerin, rat

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