艾灸“足三里”“肾俞”抑制miR-155介导的TLR4/NF-κB信号通路改善大鼠佐剂性关节炎的研究

朱艳; 俞红五; 潘喻珍; 杨佳; 周巧; 张敏; 蒋玲; 赵晨

doi:10.13702/j.1000-0607.200377

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艾灸“足三里”“肾俞”抑制miR-155介导的TLR4/NF-κB信号通路改善大鼠佐剂性关节炎的研究

机制探讨 | 更新时间：2023-08-11

- 艾灸“足三里”“肾俞”抑制miR-155介导的TLR4/NF-κB信号通路改善大鼠佐剂性关节炎的研究
- Effect of moxibustion at “Zusanli”(ST36) and “Shenshu”(BL23) on miR-155-mediated TLR4/NF-κB signaling involving amelioration of synovitis in rheumatoid arthritis rats
- 针刺研究 2021年46卷第3期页码：194-200
- 作者机构：
  
  1. 安徽中医药大学第二附属医院老年病一科
  2. 安徽中医药大学研究生院
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目(No.81403484);安徽省高校自然科学基金项目(No.KJ2019A0448);国家级项目培育基金项目计划(No.2019py01)
- DOI：10.13702/j.1000-0607.200377
  中图分类号：
- 纸质出版日期：2021
- 稿件说明：
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朱艳, 俞红五, 潘喻珍, 等. 艾灸“足三里”“肾俞”抑制miR-155介导的TLR4/NF-κB信号通路改善大鼠佐剂性关节炎的研究[J]. 针刺研究, 2021,46(3):194-200.

ZHU Yan, YU Hong-wu, PAN Yu-zhen, et al. Effect of moxibustion at “Zusanli”(ST36) and “Shenshu”(BL23) on miR-155-mediated TLR4/NF-κB signaling involving amelioration of synovitis in rheumatoid arthritis rats[J]. Acupuncture research, 2021, 46(3): 194-200.
朱艳, 俞红五, 潘喻珍, 等. 艾灸“足三里”“肾俞”抑制miR-155介导的TLR4/NF-κB信号通路改善大鼠佐剂性关节炎的研究[J]. 针刺研究, 2021,46(3):194-200. DOI： 10.13702/j.1000-0607.200377.

ZHU Yan, YU Hong-wu, PAN Yu-zhen, et al. Effect of moxibustion at “Zusanli”(ST36) and “Shenshu”(BL23) on miR-155-mediated TLR4/NF-κB signaling involving amelioration of synovitis in rheumatoid arthritis rats[J]. Acupuncture research, 2021, 46(3): 194-200. DOI： 10.13702/j.1000-0607.200377.

摘要

目的:观察艾灸"足三里""肾俞"对佐剂性关节炎(AA)大鼠miR-155/Toll样受体4 (TLR4)/核因子-κB(NF-κB)信号通路的影响

探讨艾灸治疗类风湿性关节炎的可能机制。方法:Wistar大鼠随机分为正常组、模型组、拮抗剂组、艾灸组

每组12只。采用风、寒、湿环境因素+弗氏完全佐剂复合造模方法复制AA模型。艾灸组于大鼠"足三里""肾俞"给予艾灸治疗

30 min/次

1次/d

连续治疗21 d;拮抗剂组经尾静脉注射TLR4拮抗剂

1次/d

连续注射21 d;正常组和模型组不做任何处理。观察各组大鼠关节肿胀度(JSD)、关节炎指数(AI)

荧光定量PCR法及Western blot法检测大鼠滑膜组织中miR-155/TLR4/NF-κB信号通路相关指标miR-155及TLR4、NF-κB、髓样分化因子88(MyD88)、白细胞介素(IL)1受体相关酶(IRAK1)、肿瘤坏死因子受体相关因子6(TRAF6)、IL-1β、肿瘤坏死因子α(TNF-α)、IL-6的mRNA和蛋白表达。结果:与正常组比较

模型组、艾灸组及拮抗剂组大鼠JSD、AI明显升高(P<0.01)

滑膜组织中miR-155及TLR4、NF-κB、MyD88、IRAK1、TRAF6、IL-1β、TNF-α、IL-6的mRNA和蛋白表达均明显升高(P<0.01);与模型组比较

艾灸组和拮抗剂组大鼠JSD、AI明显降低(P<0.01)

滑膜组织中miR-155及TLR4、NF-κB、MyD88、IRAK1、TRAF6、IL-1β、TNF-α、IL-6的mRNA和蛋白表达明显减少(P<0.01)。艾灸组大鼠JSD、AI及滑膜组织中miR-155 mRNA及NF-κB、MyD88、IRAK1、TRAF6、IL-1β、TNF-α、IL-6的mRNA和蛋白表达明显低于拮抗剂组(P<0.01)

滑膜组织中TLR4 mRNA及蛋白表达明显高于拮抗剂组(P<0.01)。结论:艾灸"足三里""肾俞"能够明显改善AA大鼠滑膜炎性反应

可能与艾灸抑制miR-155/TLR4/NF-κB信号通路有关。

Abstract

Objective To explore the effect of moxibustion at "Zusanli"(ST36) and "Shenshu"(BL23) on synovitis

and expressions of miR-155

Toll-like receptor 4(TLR4)

myeloid differentiation factor 88(MyD88)

interlukine(IL-1) receptor-associated kinase(IRAK1)

tumor necrosis factor receptor-associated factor 6(TRAF6)

nuclear factor κB(NF-κB)

IL-1β

tumor necrosis factor receptor(TNF)-α and IL-6 mRNA and protein of synovial membrane in rheumatoid arthritis(RA) rats

so as to explore its mechanism underlying improvement of RA. Methods A total of 48 male Wistar rats were randomly divided into normal control

model

moxibustion and antagonist groups(n=12 rats in each group). The RA model was replicated by placing the rats in a wind

cold and wet environment and injection of Freund's complete adjuvant(CFA

0.5 mL) into the right hindlimb foot plantar. Moxibustion was applied to bilateral ST36 and BL23 for 30 min

once daily for 21 consecutive days. Rats of the antagonist group was treated by injection of TLR4 antagonist(TAK-242

1 mg/mL

0.1 mg/kg) via tail vein

once per day for consecutive 21 d. The joint swelling degree(JSD) and arthritis index(AI

red swelling scale) were determined

and the expression levels of various indicators of miR-155

and TLR4

myeloid MyD88

IRAK1

TRAF6

NF-κB

IL-1β

TNF-α and IL-6 mRNA and protein were assayed by quantitative real time-PCR and Western blot

separately. Results Compared with the normal control group

the JSD and AI

and the expression levels of synovial miR-155

TLR4

MyD88

IRAK1

TRAF6

NF-κB

IL-1β

TNF-α and IL-6 mRNA and protein were significantly increased in the model group(P<0.01). Compared with the model group

the increased levels of JSD and AI

and the expression levels of synovial miR-155

TLR4

MyD88

IRAK1

TRAF6

NF-κB

IL-1β

TNF-α and IL-6 mRNA and protein were notably down-regulated in both moxibustion and antagonist groups(P<0.01). The effects of moxibustion were evidently superior to the antagonist in down-regulating the abovementioned indexes(P<0.01)

except TLR4 mRNA and protein. Conclusion Moxibustion at ST36 and BL23 can reduce the synovitis of RA rats

which is related to its effects in suppressing the expressions of miR-155

TLR4

MyD88

IRAK1

TRAF6

NF-κB

IL-1β

TNF-α and IL-6 mRNA and protein(i.e.

inhibition of miR-155/TLR4/NF-κB signaling).

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