中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (26): 4181-4186.doi: 10.12307/2023.445

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

中药热敷颈椎病模型兔椎间盘自噬及凋亡相关因子的表达

陈佳丽1,高  航1,赵子莹1,王光义2   

  1. 1贵州医科大学,贵州省贵阳市   550004;2贵州医科大学附属医院,贵州省贵阳市    550004
  • 收稿日期:2022-05-16 接受日期:2022-07-09 出版日期:2023-09-18 发布日期:2023-01-28
  • 通讯作者: 王光义,硕士,教授,主任医师,贵州医科大学附属医院,贵州省贵阳市 550004
  • 作者简介:陈佳丽,女,1996年生,湖南省浏阳市人,汉族,贵州医科大学在读硕士,主要从事针灸治疗颈椎病、风湿性疾病的研究。
  • 基金资助:
    贵阳市科技计划项目[筑科合同(2019)9-1-4],项目负责人:王光义

Effect of traditional Chinese medicine hot compress on autophagy and expression of apoptosis related factors in the intervertebral disc of rabbits with cervical spondylosis

Chen Jiali1, Gao Hang1, Zhao Ziying1, Wang Guangyi2   

  1. 1Guizhou Medical University, Guiyang 550004, Guizhou Province, China; 2Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Received:2022-05-16 Accepted:2022-07-09 Online:2023-09-18 Published:2023-01-28
  • Contact: Wang Guangyi, Master, Professor, Chief physician, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • About author:Chen Jiali, Master candidate, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Supported by:
    the Guiyang Municipal Science and Technology Plan Program, No. (2019)9-1-4 (to WGY)

摘要:

文题释义:

中药热敷:是将中药热奄包敷于机体体表,通过外热作用,使药物性能充分发挥作用,同时可避免药物内服所产生的毒副反应。此次研究使用的中药热奄包来源于贵州医科大学附属医院针灸科自拟方“通痹方”,该方具有祛风除湿、温经通络、活血止痛的功效,其临床疗效稳定,深得患者赞誉。
细胞自噬:自噬是溶酶体降解自身细胞质蛋白或细胞器的总称,是一种维持体内代谢和稳态的自我降解过程,被认为是变性疾病的重要保护机制。在正常情况下,椎间盘中自噬水平处于动态平衡,而这种平衡被破坏则是发生椎间盘退变及推进其病理改变的重要原因。

背景:中药热敷作为治疗颈椎病的常用方法,具有操作便捷、临床疗效稳定、不良作用少的优势,但其效应机制尚不明确。
目的:观察中药热敷对颈椎病模型兔椎间盘自噬及凋亡相关因子的影响,探讨其治疗颈椎病的作用机制。
方法:将24只新西兰兔随机分为对照组、模型组、中药热敷组,每组各8只。除对照组外,其余两组建立颈椎病兔模型。通过对比造模前、后颈椎影像学变化,观察是否有颈椎生理曲度变化、椎间孔变小、椎间隙变窄以及骨赘生成等改变,作为造模评价标准。动物模型建成后,中药热敷组予中药热敷干预治疗,20 min/次,每5 min更换一次药包,每日治疗一次,疗程共20次;其余两组正常饲养,不做干预。通过苏木精-伊红染色法观察各组兔颈椎间盘组织形态改变;采用TUNEL法检测颈椎间盘细胞凋亡情况;运用qRT-PCR法测定颈椎间盘组织Bcl-2、Beclin1、微管相关蛋白1轻链3 mRNA的相对表达水平。

结果与结论: ①模型组兔颈椎间盘组织形态学评分比对照组高(P < 0.05),中药热敷组椎间盘组织形态学评分比模型组低(P < 0.05);②模型组兔颈椎间盘中细胞凋亡率较对照组增高(P < 0.05),中药热敷组兔颈椎间盘中细胞凋亡率较模型组下降(P < 0.05);③模型组兔颈椎间盘自噬及凋亡相关因子Bcl-2、Beclin1、微管相关蛋白1轻链3 mRNA的相对表达水平较对照组降低(P < 0.05),而中药热敷组兔颈椎间盘中Bcl-2、Beclin1、微管相关蛋白1轻链3 mRNA的相对表达水平高于模型组(P < 0.05);④提示中药热敷可以增加颈椎病模型兔椎间盘自噬因子的表达,减少椎间盘细胞凋亡,从而保护椎间盘,改善颈椎病。

https://orcid.org/0000-0003-3520-4356 (陈佳丽) 

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: 中药热敷, 颈椎病, 椎间盘退变, 细胞自噬, 细胞凋亡

Abstract: BACKGROUND: Traditional Chinese medicine hot compress is a common method to treat cervical spondylosis. It has the unique advantages of convenient operation, stable curative effect and few side effects, but its effect mechanism is not clear.
OBJECTIVE: To observe the effect of traditional Chinese medicine hot compress on autophagy and expression of apoptosis related factors in the intervertebral disc of rabbits with cervical spondylosis and to explore its mechanism in the treatment of cervical spondylosis.
METHODS: Twenty-four New Zealand white rabbits were randomly divided into control group, model group, and traditional Chinese medicine hot compress group (drug group), with eight rabbits in each group. Except for the control group, 16 rabbits in the other two groups were used to establish the animal model of cervical spondylosis. The imaging changes of the cervical spine before and after modeling were compared to observe whether there were changes in the physiological curvature of the cervical spine, smaller intervertebral foramen, narrowing of the intervertebral space, and the formation of osteophytes, which could be used as the evaluation standard of modeling. After the animal model was established, the drug group was treated with traditional Chinese medicine hot compress intervention, 20 minutes per day, and the medicine bag was changed every 5 minutes, once a day, for 20 days in total. The other two groups were fed normally without intervention. The morphological changes of the cervical intervertebral disc of rabbits in each group were observed by hematoxylin-eosin staining. The apoptosis of intervertebral disc cells in each group was observed by TUNEL. The relative mRNA expression levels of Bcl-2, Beclin1, and microtubule-associated protein 1 light chain 3 in the cervical intervertebral disc were measured by real-time fluorescence quantitative PCR.
RESULTS AND CONCLUSION: The histological score of the cervical intervertebral disc in the model group was higher than that in the control group (P < 0.05), and the histological score of the intervertebral disc in the traditional Chinese medicine hot compress group was lower than that in the model group (P < 0.05).The apoptosis rate of rabbit cervical intervertebral disc in the model group was higher than that in the control group (P < 0.05), and the apoptosis rate of rabbit cervical intervertebral disc in the traditional Chinese medicine hot compress group was lower than that in the model group (P < 0.05). The relative mRNA expression levels of Bcl-2, Beclin1, and microtubule-associated protein 1 light chain 3 in the model group were lower than those in the control group (P < 0.05), while the relative mRNA expression levels of Bcl-2, Beclin1, and microtubule-associated protein 1 light chain 3 in the traditional Chinese medicine hot compress group were significantly higher than those in the model group (P < 0.05). To conclude, traditional Chinese medicine hot compress can increase the expression of autophagy factors in the intervertebral disc of rabbits with cervical spondylosis and reduce the apoptosis of intervertebral disc cells, so as to protect the intervertebral disc and improve cervical spondylosis.

Key words: traditional Chinese medicine hot compress, cervical spondylosis, intervertebral disc degeneration, autophagy, apoptosis

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