浏览全部资源
扫码关注微信
上海中医药大学附属曙光医院麻醉科(上海 200021)
汪静,女,硕士,主治医师,主要从事麻醉与镇痛研究工作
唐炜,主任医师,硕士研究生导师; E-mail:976711152@qq.com
收稿日期:2023-06-03,
纸质出版日期:2025-04-10
移动端阅览
汪静,殷智宇,郭君,等.电针对神经病理性疼痛大鼠痛阈值及脊髓小胶质细胞M1/M2活化状态的影响[J].上海中医药杂志,2025,59(4):8-12.
WANG Jing,YIN Zhiyu,GUO Jun,et al.Effect of electroacupuncture on pain threshold and activation of spinal microglia M1/M2 in rats with neuropathic pain[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(4):8-12.
汪静,殷智宇,郭君,等.电针对神经病理性疼痛大鼠痛阈值及脊髓小胶质细胞M1/M2活化状态的影响[J].上海中医药杂志,2025,59(4):8-12. DOI: 10.16305/j.1007-1334.2025.2306007.
WANG Jing,YIN Zhiyu,GUO Jun,et al.Effect of electroacupuncture on pain threshold and activation of spinal microglia M1/M2 in rats with neuropathic pain[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(4):8-12. DOI: 10.16305/j.1007-1334.2025.2306007.
目的
2
观察电针对脊神经根结扎(SNL)大鼠的痛阈值和脊髓小胶质细胞M1/M2活化状态的影响,探讨电针参与慢性疼痛调控的可能机制。
方法
2
成年雄性SD大鼠随机分为4组:假手术(Sham)组、SNL组、SNL+电针(SNL+EA)组和SNL+假电针(SNL+Non-EA)组,每组8只。除Sham组外其余组均通过L5脊神经根结扎建立SNL大鼠模型,Sham组大鼠仅暴露左侧L5脊神经根,不进行结扎。SNL+EA组术后次日开始电针刺激,选取双侧“环跳穴”(GB30)、“足三里穴”(ST36),每天1次,每次30 min,强度2 mA,频率2 Hz,持续14 d。SNL+Non-EA组于穴位右侧旁开0.5 cm处行电针干预,操作、电针参数及疗程同SNL+EA组。术后第1、3、7、10、14天测试大鼠机械缩足阈值(PWMT)和热缩足反射潜伏期(PWL);术后第14天取大鼠脊髓腰膨大,采用Western blot法检测CD86、CD206的表达量,酶联免疫吸附测定(ELISA)法检测肿瘤坏死因子-α(TNF-α)、白细胞介素(IL)-1β、IL-6和IL-10的表达。
结果
2
与Sham组相比,SNL组大鼠术后第1、3、7、10、14 天PWMT、PWL均降低(
P
<
0.05);SNL+EA组较SNL组,大鼠PWMT和PWL在术后第3、7、10、14天明显回升(
P
<
0.05)。SNL组的小胶质细胞M1型、M2型标记物CD86、CD206较Sham组表达明显增多(
P
<
0.05);而SNL+EA组较SNL组,CD86的表达降低,CD206表达升高(
P
<
0.05)。SNL+EA组大鼠脊髓TNF-α、IL-1β、IL-6表达较SNL组减少,而IL-10表达增多(
P
<
0.05)。
结论
2
电针可有效缓解SNL大鼠的痛觉过敏,其机制可能与调控脊髓小胶质细胞活化状态及脊髓炎症因子的表达有关。
Objective
2
To observe the effect of electroacupuncture (EA) on the pain threshold and the activation of spinal microglia M1/M2 in rats with spinal nerve ligation (SNL), so as to explore the possible mechanism of EA in the regulation of chronic pain.
Methods
2
Adult male SD rats were randomly divided into four groups: Sham, SNL, SNL+EA and SNL+Non-EA. The SNL model was established by L5 spinal nerve ligation in all groups except the Sham group, and only the left L5 spinal nerve root was exposed in the Sham group. In the SNL+EA group, EA was applied to bilateral Huantiao (GB30) and Zusanli (ST36) from the next day after SNL, 30 min each time, 2 mA in intensity and 2 Hz in frequency, once a day for 14 days. In the SNL+Non-EA group, EA was applied 0.5 cm lateral to the right side of the acupoints. The operation, EA parameters and course of treatment were the same as in the SNL+EA group. Paw withdrawal mechanical threshold (PWMT) and paw withdrawal latency (PWL) were measured on the 1, 3, 7, 10 and 14 days after operation. On the 14 days after operation, the lumbar enlargement of the spinal cord was harvested for the determination of the expression of CD86 and CD206 by Western blot, and the expression of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6 and IL-10 was measured by enzyme-linked immunosorbent assay (ELISA).
Results
2
Compared with the Sham group, PWMT and PWL in the SNL group were significantly decreased (
P
<
0.05) on the 1, 3, 7, 10, 14 days after SNL; PWMT and PWL in the SNL+EA group were significantly higher than those in the SNL group on the 3, 7, 10 and 14 days after operation(
P
<
0.05). The expressions of M1 and M2 markers CD86 and CD206 in microglia were significantly increased in the SNL group compared with the Sham group (
P
<
0.05); Compared with the SNL group, the expression of CD86 was decreased and CD206 was increased in the SNL+EA group (
P
<
0.05). The expression of TNF-α, IL-1β and IL-6 in spinal cord of SNL+EA group was lower than that of the SNL group, while the expression of IL-10 was higher than that of the SNL group (
P
<
0.05).
Conclusion
2
EA can effectively alleviate hyperalgesia in SNL rats, and its mechanism may be related to regulating the activation of spinal microglia and the expression of inflammatory factors in the spinal cord.
FINNERUP N B , KUNER R , JENSEN T S . Neuropathic pain: from mechanisms to treatment [J]. Physiol Rev , 2021 , 101 ( 1 ): 259 - 301 .
ALLES S R A , SMITH P A . Etiology and pharmacology of neuropathic pain [J]. Pharmacol Rev , 2018 , 70 ( 2 ): 315 - 347 .
MOISSET X . Neuropathic pain: Evidence based recommendations [J]. Presse Med , 2024 , 53 ( 2 ): 104232 .
TSUDA M , MASUDA T , KOHNO K . Microglial diversity in neuropathic pain [J]. Trends Neurosci , 2023 , 46 ( 7 ): 597 - 610 .
ATTA A A , IBRAHIM W W , MOHAMED A F , et al . Microglia polarization in nociplastic pain: mechanisms and perspectives [J]. Inflammopharmacology , 2023 , 31 ( 3 ): 1053 - 1067 .
LOPES F S R , GIARDINI A C , SANT'ANNA M B , et al . Crotalphine modulates microglia M1/M2 phenotypes and induces spinal analgesia mediated by opioid-cannabinoid systems [J]. Int J Mol Sci , 2022 , 23 ( 19 ): 11571 .
XUE C , KUI W , HUANG A , et al . Electroacupuncture suppresses neuronal ferroptosis to relieve chronic neuropathic pain [J]. J Cell Mol Med , 2024 , 28 ( 7 ): e18240 .
ZHOU M , ZHANG Q , HUO M , et al . The mechanistic basis for the effects of electroacupuncture on neuropathic pain within the central nervous system [J]. Biomed Pharmacother , 2023 , 161 : 114516 .
ZHOU M , PANG F , LIAO D M , et al . Electroacupuncture improves allodynia and central sensitization via modulation of microglial activation associated P2X4R and inflammation in a rat model of migraine [J]. Mol Pain , 2024 , 20 : 17448069241258113 .
WANG J , SONG W , ZHANG Y J , et al . Electroacupuncture alleviates pain by suppressing P2Y12R-dependent microglial activation in monoarthritic rats [J]. Neurochem Res , 2024 , 49 ( 5 ): 1268 - 1277 .
KIM H S , CHUNG J M . An experimental model for peripheral neuropathy produced by segmental spinal nerve ligation in the rat [J]. Pain , 1992 , 50 ( 3 ): 355 - 363 .
ZHANG Y , CHEN R , HU Q , et al . Electroacupuncture ameliorates mechanical allodynia of a rat model of CRPS-1 via suppressing NLRP3 inflammasome activation in spinal cord dorsal horn neurons [J]. Front Cell Neurosci , 2022 , 16 : 826777 .
杨典平 , 张英 , 林培敏 , 等 . 基于小胶质细胞-BDNF-神经元信号探讨电针对SNI大鼠的镇痛作用及机制 [J]. 中国针灸 , 2012 , 42 ( 9 ): 1029 - 1040 .
ZHANG R , LAO L , REN K , et al . Mechanisms of acupuncture-electroacupuncture on persistent pain [J]. Anesthesiology , 2014 , 120 ( 2 ): 482 - 503 .
叶涛 , 徐天舒 . 不同强度电针足三里对化疗所致周围神经病理性疼痛大鼠行为学及坐骨神经传导速度的影响 [J]. 陕西中医 , 2023 , 44 ( 12 ): 1678 - 1682 .
VIEIRA J S , TORETI J A , CARVALHO R C , et al . Analgesic effects elicited by neuroactive mediators injected into the ST 36 acupuncture point on inflammatory and neuropathic pain in mice [J]. J Acupunct Meridian Stud , 2018 , 11 ( 5 ): 280 - 289 .
ZHENG Y , JIA C , JIANG X , et al . Electroacupuncture effects on the P2X4R pathway in microglia regulating the excitability of neurons in the substantia gelatinosa region of rats with spinal nerve ligation [J]. Mol Med Rep , 2021 , 23 ( 3 ): 175 .
DONNELLY C R , ANDRIESSEN A S , CHEN G , et al . Central nervous system targets: glial cell mechanisms in chronic pain [J]. Neurotherapeutics , 2020 , 17 ( 3 ): 846 - 860 .
INOUE K , TSUDA M . Microglia in neuropathic pain: cellular and molecular mechanisms and therapeutic potential [J]. Nat Rev Neurosci , 2018 , 19 ( 3 ): 138 - 152 .
TSUDA M , MASUDA T , KOHNO K . Microglial diversity in neuropathic pain [J]. Trends Neurosci , 2023 , 46 ( 7 ): 597 - 610 .
RAGHAVENDRA V , TANGA F , DELEO J A . Inhibition of microglial activation attenuates the development but not existing hypersensitivity in a rat model of neuropathy [J]. J Pharmacol Exp Ther , 2003 , 306 ( 2 ): 624 - 630 .
ZHANG H , XIANG L , YUAN H , et al . PTPRO inhibition ameliorates spinal cord injury through shifting microglial M1/M2 polarization via the NF‑κB/STAT6 signaling pathway [J]. Biochim Biophys Acta Mol Basis Dis , 2024 , 1870 ( 5 ): 167141 .
LI X , SHI H , ZHANG D , et al . Paeonol alleviates neuropathic pain by modulating microglial M1 and M2 polarization via the RhoA/p38MARK signaling pathway [J]. CNS Neurosci Ther , 2023 , 29 ( 9 ): 2666 - 2679 .
GAO Y Y , TAO T , WU D , et al . MFG-E8 attenuates inflammation in subarachnoid hemorrhage by driving microglial M2 polarization [J]. Exp Neurol , 2021 , 336 : 113532 .
JIN G L , HE S D , LIN S M , et al . Koumine attenuates neuroglia activation and inflammatory response to neuropathic pain [J]. Neural Plast , 2018 , 2018 : 9347696 .
HUO W , ZHANG Y , LIU Y , et al . Dehydrocorydaline attenuates bone cancer pain by shifting microglial M1/M2 polarization toward the M2 phenotype [J]. Mol Pain , 2018 , 14 : 1744806918781733 .
SI W , LI X , JING B , et al . Stigmasterol regulates microglial M1/M2 polarization via the TLR4/NF-κB pathway to alleviate neuropathic pain [J]. Phytother Res , 2024 , 38 ( 1 ): 265 - 279 .
0
浏览量
0
下载量
0
CSCD
0
CNKI被引量
关联资源
相关文章
相关作者
相关机构