中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (5): 936-941.doi: 10.12307/2025.250

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

腰椎间盘突出症模型大鼠疼痛的针刺干预

支  芳,朱满华,熊  伟,林星镇   

  1. 南昌市洪都中医院,江西省南昌市  330038



  • 出版日期:2025-02-18 发布日期:2024-06-03
  • 通讯作者: 林星镇,主治医师,南昌市洪都中医院,江西省南昌市 330038
  • 作者简介:支芳,女,1984年生,江西省南昌市人,汉族,主治中医师,主要从事临床医学研究。
  • 基金资助:
    江西省中医药管理局科技计划项目(2021B009),项目负责人:支芳

Analgesic effect of acupuncture in a rat model of lumbar disc herniation 

Zhi Fang, Zhu Manhua, Xiong Wei, Lin Xingzhen   

  1. Nanchang Hongdu Traditional Chinese Medicine Hospital, Nanchang 330038, Jiangxi Province, China

  • Online:2025-02-18 Published:2024-06-03
  • Contact: Lin Xingzhen, Attending physician, Nanchang Hongdu Traditional Chinese Medicine Hospital, Nanchang 330038, Jiangxi Province, China
  • About author:Zhi Fang, Attending physician, Nanchang Hongdu Traditional Chinese Medicine Hospital, Nanchang 330038, Jiangxi Province, China
  • Supported by:
    Science and Technology Program of Jiangxi Provincial Administration of Traditional Chinese Medicine, No. 2021B009 (to ZF)

摘要:




文题释义:
腰椎间盘突出症:指因椎间盘变性、纤维环破裂、髓核突出而刺激或压迫神经根、马尾神经所表现出的一种综合病症,主要表现为腰疼、坐骨神经痛、下肢麻木、疼痛、马尾神经症状等。
JAK2/STAT3信号通路:为细胞内传递信号的主链,在细胞增殖、凋亡、侵袭、迁移及免疫应答等活动中起重要作用。该通路由细胞因子和干扰素触发,能迅速地将细胞外信号转导到细胞核中,可调节机体免疫与多种炎症过程,与其相关的细胞因子可刺激调节人类炎症反应神经痛信号通道。

背景:针灸是缓解腰椎间盘突出症腰痛的有效方法,但其机制目前尚未明确。JAK2/STAT3信号通路相关因子可调节机体炎症反应,参与神经病理性疼痛的过程。
目的:基于JAK2/STAT3信号通路研究针刺对腰椎间盘突出症模型大鼠的作用机制。
方法:采用随机数字表法将40只SD大鼠分为假手术组、模型组、针刺组与针刺+激动剂组,每组10只。模型组、针刺组及针刺+激动剂组采用自体髓核移植法构建L5腰椎间盘突出症模型,造模3 d后,针刺组开始进行针刺治疗(作用于阳陵泉、肾俞、环跳、大肠俞等穴位),针刺+激动剂组造模后第6,12,18天针刺治疗前向L4/L5椎间隙鞘内注射JAK2激动剂香豆霉素A1,针刺治疗1次/d,20 min/次,连续治疗15 d。造模前及造模后3,6,9,12,15,18 d,检测大鼠机械缩足阈值;造模后18 d,检测血清炎症因子水平,苏木精-伊红染色观察L5-L6组织形态,RT-PCR检测L5-L6组织JAK2、STAT3 mRNA表达,Western Blot检测L5-L6组织JAK2、STAT3、p-JAK2及p-STAT3蛋白表达。
结果与结论:①模型组大鼠造模后不同时间点的机械缩足阈值均低于假手术组(P < 0.05),针刺组大鼠造模后9,12,15,18 d的机械缩足阈值均高于模型组(P < 0.05),针刺+激动剂组大鼠造模后9,12,15,18 d的机械缩足阈值均低于针刺组(P < 0.05);②与假手术组比较,模型组白细胞介素6、肿瘤坏死因子α、神经递质P物质、脑部神经肽Y水平均升高(P < 0.05);与模型组比较,针刺组4种炎症因子水平均降低(P < 0.05);与针刺组比较,针刺+激动剂组4种炎症因子水平均升高(P < 0.05);③苏木精-伊红染色显示模型组大鼠腰椎退行性变化明显,针刺组与针刺+激动剂组大鼠腰椎退行性变化减轻,针刺组减轻更明显;④与假手术组比较,模型组JAK2与STAT3 mRNA表达、p-JAK2与p-STAT3蛋白表达均升高(P < 0.05);与模型组比较,针刺组JAK2与STAT3 mRNA表达、p-JAK2与p-STAT3蛋白表达均降低(P < 0.05);与针刺组比较,针刺+激动剂组JAK2与STAT3 mRNA表达、p-JAK2与p-STAT3蛋白表达均升高(P < 0.05);⑤结果表明,针刺干预可通过降低腰椎间盘突出症模型大鼠的炎症反应来缓解疼痛,其作用机制可能与抑制JAK2/STAT3信号通路有关。

https://orcid.org/0009-0001-5295-9227(支芳)

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: JAK2/STAT3信号通路, 针刺, 腰椎间盘突出症, 病理性疼痛, 机械缩足阈值, 炎症反应

Abstract: BACKGROUND: Acupuncture is an effective method for lumbar pain in lumbar disc herniation, but its mechanism has not yet been clarified. Factors related to the JAK2/STAT3 signaling pathway regulate the body’s inflammatory response and are involved in the process of neuropathic pain.
OBJECTIVE: To study the mechanism of acupuncture on lumbar disc herniation in a rat model based on the JAK2/STAT3 signaling pathway. 
METHODS: Forty Sprague-Dawley rats were randomly divided into four groups: sham operation group, model group, acupuncture group, and acupuncture+agonist group, with 10 rats in each group. Animal models of L5 lumbar disc herniation was constructed through autologous disc cell transplantation in the model group, acupuncture group, and acupuncture+agonist group. Rats in the acupuncture group and the acupuncture+agonist group received acupuncture treatment (Yanglingquan, Shenshu, Huantiao, and Dachangshu acupoints) at 3 days after modeling, and acupuncture treatment was given once a day, 20 minutes each, for 15 consecutive days. Rats in the acupuncture+agonist group were injected intrathecally with coumermycin A1, a JAK2 agonist, into the L4/L5 intervertebral space, once a day, 20 minutes each, prior to the acupuncture at 6, 12, and 18 days after modeling. Paw withdrawal mechanical threshold was detected before and 3, 6, 9, 12, 15, and 18 days after modeling. At 18 days after modeling, serum inflammatory factor levels were detected, hematoxylin-eosin staining was performed to observe the morphology of L5-L6 tissues, RT-PCR was performed to detect the expression of JAK2 and STAT3 mRNAs in L5-L6 tissues, and western blot was performed to detect the expression of JAK2, p-JAK2 and p-STAT3 proteins in L5-L6 tissues. 
RESULTS AND CONCLUSION: The paw withdrawal mechanical thresholds of rats in the model group at different time points after modeling were lower than those in the sham operation group (P < 0.05), the paw withdrawal mechanical thresholds of rats in the acupuncture group were higher than those in the model group at 9, 12, 15, and 18 days after modeling (P < 0.05), and the paw withdrawal mechanical thresholds of rats in the acupuncture+agonist group were lower than those in the acupuncture group at 9, 12, 15, and 18 days after modeling (P < 0.05). The levels of interleukin 6, tumor necrosis factor α, neurotransmitter substance P, and brain neuropeptide Y were elevated in the model group compared with the sham operation group (P < 0.05); the levels of all four inflammatory factors were reduced in the acupuncture group compared with the model group (P < 0.05); and the levels of all four inflammatory factors were elevated in the acupuncture+agonist group compared with the acupuncture group (P < 0.05). Hematoxylin-eosin staining showed that lumbar degeneration was obvious in the model group but reduced in the acupuncture group and the acupuncture+agonist group. Moreover, the reduction was more obvious in the acupuncture group compared with the acupuncture+agonist group. The JAK2 and STAT3 mRNA expression as well as the p-JAK2 and p-STAT3 protein expression were elevated in the model group compared with the sham operation group (P < 0.05), were decreased in the acupuncture group compared with the model group (P < 0.05), and were increased in the acupuncture+agonist group compared with the acupuncture group (P < 0.05). To conclude, acupuncture can alleviate inflammation to exert analgesic effects in the rat model of lumbar disc herniation, and its mechanism of action may be related to the inhibition of the JAK2/STAT3 signaling pathway.

Key words: JAK2/STAT3 signaling pathway, acupuncture, lumbar disc herniation, pathologic pain, paw withdrawal mechanical threshold, inflammation

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