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1.广东药科大学 中药学院,广东省中药饮片规范化炮制工程技术研究中心,广州 510006
2.黑龙江中医药大学 教育部北药基础与应用研究重点实验室 黑龙江省中药及天然药物药效物质基础 研究重点实验室,哈尔滨 150040
林婉娜,在读硕士,从事中药药效物质基础及活性研究研究,E-mail:1053782081@qq.com
王秋红,博士,教授,从事中药炮制、中药药效物质基础及活性研究、新药研发,E-mail:qhwang668@sina.com
收稿日期:2021-10-27,
网络出版日期:2022-01-14,
纸质出版日期:2022-05-05
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林婉娜,苏慧琳,李慧敏等.黄芪桂枝五物汤抗类风湿性关节炎的作用机制[J].中国实验方剂学杂志,2022,28(09):9-15.
LIN Wan-na,SU Hui-lin,LI Hui-min,et al.Therapeutic Mechanism of Huangqi Guizhi Wuwutang on Rheumatoid Arthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(09):9-15.
林婉娜,苏慧琳,李慧敏等.黄芪桂枝五物汤抗类风湿性关节炎的作用机制[J].中国实验方剂学杂志,2022,28(09):9-15. DOI: 10.13422/j.cnki.syfjx.20220607.
LIN Wan-na,SU Hui-lin,LI Hui-min,et al.Therapeutic Mechanism of Huangqi Guizhi Wuwutang on Rheumatoid Arthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(09):9-15. DOI: 10.13422/j.cnki.syfjx.20220607.
目的
2
基于黄芪桂枝五物汤治疗类风湿性关节炎的临床应用,通过药理学研究,揭示其作用机制。
方法
2
采用大鼠尾部注射牛Ⅱ型胶原及弗氏佐剂建立胶原诱导性(CIA)模型,给予不同浓度的黄芪桂枝五物汤治疗。实验分为正常组、模型组、甲氨蝶呤(0.9 mg·kg
-1
)组、黄芪桂枝五物汤低、高剂量(5.13、20.52 g·kg
-1
·d
-1
)组,连续灌胃给药4周。通过观察大鼠关节肿胀程度、记录大鼠体质量、测定足肿胀度、关节炎指数评分及苏木素-伊红(HE)染色检测大鼠踝关节病理形态变化明确黄芪桂枝五物汤对类风湿性关节炎的治疗作用;利用酶联免疫吸附测定法(ELISA)检测大鼠血清中白细胞介素-1
β
(IL-1
β
)、IL-6、IL-10及肿瘤坏死因子-
α
(TNF-
α
)的表达水平,蛋白免疫印迹法(Western blot)检测大鼠膝关节滑膜组织核转录因子-
κ
B(NF-
κ
B)通路相关蛋白表达水平,以明确黄芪桂枝五物汤治疗类风湿性关节炎的作用机制。
结果
2
与正常组比较,模型组大鼠第29天起体质量显著下降(
P
<
0.01),第15天起足肿胀度及关节指数评分显著升高(
P
<
0.01),踝关节形态功能受损,血清炎症因子IL-1
β
,IL-6,TNF-
α
水平显著升高(
P
<
0.01),抗炎因子IL-10水平显著下降(
P
<
0.01),膝关节滑膜NF-
κ
B通路相关蛋白表达水平显著升高(
P
<
0.01);与模型组比较,黄芪桂枝五物汤低、高剂量组体质量显著升高(
P
<
0.01),大鼠足肿胀度与关节炎指数评分明显下降(
P
<
0.05,
P
<
0.01),踝关节功能形态明显好转,血清炎症因子IL-1
β
,IL-6,TNF-
α
显著下降(
P
<
0.01),抗炎因子IL-10水平显著升高(
P
<
0.01),膝关节滑膜NF-
κ
B通路相关蛋白表达水平明显下降(
P
<
0.05,
P
<
0.01)。
结论
2
黄芪桂枝五物汤可通过负性调控NF-
κ
B信号通路,从而缓解CIA大鼠体内炎症反应,显著缓解关节炎症状。
Objective
2
To reveal the mechanism of action of Huangqi Guizhi Wuwutang in the treatment of rheumatoid arthritis by pharmacological research based on its clinical application.
Method
2
The collagen-induced arthritis (CIA) rat model was established by injecting bovine type Ⅱ collagen and Freund's adjuvant at the tail, and was treated with different concentrations of Huangqi Guizhi Wuwutang. The rats were randomly divided into blank group, model group, methotrexate (0.9 mg·kg
-1
) group, and Huangqi Guizhi Wuwutang low- and high-dose (5.13, 20.52 g·kg
-1
·d
-1
) groups, with continuous intragastric administration for 4 weeks. The degree of joint swelling, weight, degree of foot swelling and arthritis index score were determined and the pathological changes of ankle joints were detected by hematoxylin and eosin (HE) staining to observe the therapeutic effect of Huangqi Guizhi Wuwutang on rheumatoid arthritis. In addition, enzyme-linked immunosorbent assay (ELISA) and Western blot were used to measure the expression of interleukin 1
β
(IL-1
β
), interleukin 6 (IL-6), interleukin 10 (IL-10) and tumor necrosis factor-
α
(TNF-
α
) in serum and the expression of nuclear factor kappa-B (NF-
κ
B) pathway related proteins in synovial tissue, respectively to clarify the molecular mechanism of Huangqi Guizhi Wuwutang in the treatment of rheumatoid arthritis.
Result
2
Compared with the conditions in blank group, the body weight and IL-10 level were decreased (
P<
0.01), and the degree of foot swelling and arthritis index score, the levels of IL-1
β
, IL-6 and TNF-
α
, and the expression of NF-
κ
B pathway related proteins were increased (
P<
0.01,) in the model group, with impaired morphology and function of the ankle joint. Additionally, compared with the model group, Huangqi Guizhi Wuwutang low- and high-dose groups had increased body weight of rats and IL-10 level (
P
<
0.01), and reduced degree of foot swelling and arthritis index score (
P
<
0.05,
P<
0.01), levels of IL-1
β
, IL-6 and TNF-
α
(
P
<
0.01) and expression of NF-
κ
B pathway related proteins (
P
<
0.05,
P<
0.01), with improved function and morphology of the ankle joint.
Conclusion
2
Huangqi Guizhi Wuwutang can significantly alleviate joint inflammatory injury by down-regulating NF-
κ
B pathway and reducing the inflammatory response in CIA rats.
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