山西中医药大学基础医学院,山西省晋中市高校园区大学街121号,030619
hhq@sxtcm.edu.cn,(0351)3179800
收稿:2021-05-18,
修回:2021-07-23,
纸质出版:2021-10-17
移动端阅览
高玉亭,李振,赵雨薇等.防己黄芪汤对胶原诱导性关节炎模型大鼠关节组织Notch2/DLL1通路的影响[J].中医杂志,2021,62(20):1820-1826.
GAO Yuting,LI Zhen,ZHAO Yuwei,et al.Effect of Fangji Huangqi Decoction(防己黄芪汤)on Notch2 /DLL1 Pathway in Joint Tissues of Collagen-induced Arthritis Model Rats[J].Journal of Traditional Chinese Medicine,2021,62(20):1820-1826.
高玉亭,李振,赵雨薇等.防己黄芪汤对胶原诱导性关节炎模型大鼠关节组织Notch2/DLL1通路的影响[J].中医杂志,2021,62(20):1820-1826. DOI: 10.13288/j.11-2166/r.2021.20.013.
GAO Yuting,LI Zhen,ZHAO Yuwei,et al.Effect of Fangji Huangqi Decoction(防己黄芪汤)on Notch2 /DLL1 Pathway in Joint Tissues of Collagen-induced Arthritis Model Rats[J].Journal of Traditional Chinese Medicine,2021,62(20):1820-1826. DOI: 10.13288/j.11-2166/r.2021.20.013.
目的
2
探讨防己黄芪汤治疗类风湿关节炎(RA)的可能作用机制。
方法
2
72只Wistar雌性大鼠随机分为正常组12只及造模组60只。造模组大鼠给予注射牛Ⅱ型胶原溶液和完全弗氏佐剂/不完全弗氏佐剂建立胶原诱导性关节炎(CIA)模型,造模成功的48只大鼠随机分为模型组及防己黄芪汤低、中、高剂量组,每组12只。防己黄芪汤低、中、高剂量组分别给予2.2、4.4、8.8 g/(kg·d)防己黄芪汤灌胃,正常组和模型组给予4 ml/(kg·d)生理盐水灌胃,均连续灌胃6周。每周记录大鼠体质量并进行关节炎评分,观察大鼠关节组织病理形态,检测血清中肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)和干扰素γ(IFN-γ)水平,关节组织Notch2、DLL1 mRNA和蛋白表达水平。
结果
2
与模型组比较,防己黄芪汤中、高剂量组大鼠体质量升高,关节炎评分降低,血清细胞因子TNF-α、IL-6和IFN-γ水平显著降低,关节组织Notch2、DLL1蛋白及mRNA表达显著降低(
P
<0.05或
P
<0.01)。病理结果显示,滑膜增生、炎性细胞浸润、关节翳形成和关节间隙变窄显著缓解。与防己黄芪汤低剂量组比较,防己黄芪汤中、高剂量组关节组织病理改善情况良好,关节炎评分降低,血清细胞因子TNF-α、IL-6和IFN-γ水平显著降低,关节组织DLL1 mRNA和Notch2蛋白表达显著降低(
P
<0.05或
P
<0.01)。与防己黄芪汤中剂量组比较,防己黄芪汤高剂量组血清中细胞因子TNF-α和IL-6水平升高,关节组织Notch2
mRNA表达升高,DLL1 mRNA表达降低(
P
<0.01)。
结论
2
防己黄芪汤可显著改善CIA模型大鼠关节炎症状,中剂量效果最佳,其作用机制可能与抑制关节组织Notch2/DLL1信号通路、调节自身免疫功能、降低促炎细胞因子的表达有关。
Objective
2
To explore the possible mechanism of
Fangji Huangqi Decoction
(防己黄芪汤, FHD) in the treatment of rheumatoid arthritis (RA).
Methods
2
Seventy-two female Wistar rats were randomly divided into normal group (n=12) and modeling group (n=60). Rats in the modeling group were given bovine typeⅡcollagen solution and complete/incomplete Freund's adjuvant to establish the rat model of collagen-induced arthritis (CIA). Forty-eight successfully modeled rats were randomly divided into a model group, and FHD low, medium and high dose groups, with 12 rats in each group. FDH at the concentration of 2.2, 4.4, 8.8 g/(kg·d) by gavage was given to FDH low, medium and high dose groups, respectively, while 4 mL/(kg·d) normal saline by gavage was given to the the normal group and model group; the interventions were administered for six weeks in all the groups. The weight of rats and the score of arthritis were assessed every week; the pathological morphology of joint tissues were observed; the levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interferon-γ (IFN-γ) in serum, as well as the Notch2 and DLL1 mRNA and protein expression in the joint tissues were detected.
Results
2
Compared to those in the model group, the weight of rats in the FHD medium and high dose groups increased; the score of arthritis was reduced; the expression of cytokines TNF-α, IL-6 and IFN-γ in serum significantly decreased; the expression of Notch2, DLL1 mRNA and protein in joints were significantly reduced (
P
<0.05 or
P
<0.01). The pathological results showed that synovial hyperplasia, inflammatory cell infiltration, pannus formation and narrowing of joint space were significantly alleviated. Compared to the FHD low dose group, the medium and high dose groups improved the pathological damage of joint tissues; the arthritis score decreased; the expression of cytokines TNF-α, IL-6 and IFN-γ in serum were significantly reduced; the expression of DLL1 mRNA and Notch2 protein in the joint tissues decreased significantly (
P
<0.05 or
P
<0.01). Compared to those in the FHD medium dose group, the expression of serum cytokines TNF-α and IL-6 in the high dose group significantly increased; the expression of Notch2 mRNA was significantly up-leveled; and the expression of DLL1 mRNA was significantly reduced.
Conclusion
2
FHD can signi-ficantly improve the arthritis symptoms of CIA model rats, and the medium dose works best. The mechanism may be related to its function of inhibiting Notch2/DLL1 signaling pathway, regulating autoimmune function and reducing the expression of proinflammatory cytokines.
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