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1.暨南大学 中医学院,广州 510632
2.暨南大学 附属第一医院,广州 510632
李楠,博士,讲师,主治医师,从事中医药防治风湿免疫病的研究,E-mail:linandada@126.com
陈家旭,博士,教授,博士生导师,从事中医病证规范化研究,E-mail:chenjiaxu@hotmail.com
收稿日期:2022-05-01,
网络出版日期:2022-07-11,
纸质出版日期:2023-01-20
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李楠,杨海芯,曾珊等.桂枝芍药知母汤对胶原诱导性关节炎小鼠软骨破坏及JAK2/STAT3信号通路的影响[J].中国实验方剂学杂志,2023,29(02):52-58.
LI Nan,YANG Haixin,ZENG Shan,et al.Effect of Guizhi Shaoyao Zhimutang on Cartilage Destruction and JAK2/STAT3 Signaling Pathway in Mice with Collagen-induced Arthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(02):52-58.
李楠,杨海芯,曾珊等.桂枝芍药知母汤对胶原诱导性关节炎小鼠软骨破坏及JAK2/STAT3信号通路的影响[J].中国实验方剂学杂志,2023,29(02):52-58. DOI: 10.13422/j.cnki.syfjx.20221403.
LI Nan,YANG Haixin,ZENG Shan,et al.Effect of Guizhi Shaoyao Zhimutang on Cartilage Destruction and JAK2/STAT3 Signaling Pathway in Mice with Collagen-induced Arthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(02):52-58. DOI: 10.13422/j.cnki.syfjx.20221403.
目的
2
研究桂枝芍药知母汤在胶原诱导性关节炎(CIA)小鼠软骨破坏中的作用及其作用机制。
方法
2
取SPF级DBA/1小鼠36只,随机分组为正常组、模型组、甲氨蝶呤组(MTX)、桂枝芍药知母汤低、中、高剂量组6组。除正常组外,其余5组小鼠采用二次免疫法构建CIA模型,并在小鼠开始出现后肢肿胀当天分别予生理盐水,MTX(1.5 mg·kg
-1
,每周2次)和桂枝芍药知母汤低、中、高剂量(6.3、12.6、25.2 g·kg
-1
·d
-1
)灌胃,共给药4周。观察并记录各组小鼠足肿胀度变化,酶联免疫吸附测定法(ELISA)检测血清中基质金属蛋白酶-1(MMP-1)、MMP-3、MMP-9、MMP-13含量,苏木素-伊红(HE)染色观察踝关节病理改变,番红固绿染色法观察软骨破坏,蛋白免疫印迹法(Western blot)检测小鼠踝关节酪氨酸激酶2(JAK2)/转录激活因子3(STAT3)信号通路蛋白表达。
结果
2
与正常组比较,模型组足肿胀度,血清MMP-1、MMP-3、MMP-9和MMP-13含量和踝关节磷酸化(p)-JAK2/JAK2、p-STAT3/STAT3的表达水平均显著上升(
P
<
0.01),关节破坏加重。与模型组比较,MTX组和桂枝芍药知母汤低、中、高剂量组明显减轻小鼠足肿胀度(
P
<
0.05,
P
<
0.01),明显降低小鼠血清MMP-1、MMP-3、MMP-9和MMP-13含量(
P
<
0.05,
P
<
0.01),关节病理破坏减轻,明显降低踝关节p-JAK2/JAK2和p-STAT3/STAT3的表达水平(
P
<
0.05,
P
<
0.01)。
结论
2
桂枝芍药知母汤能减轻CIA小鼠的关节肿胀程度,抑制MMP-1、MMP-3、MMP-9和MMP-13的表达,改善关节软骨破坏,其作用机制与JAK2/STAT3信号通路有关。
Objective
2
To study the effect of Guizhi Shaoyao Zhimutang (GSZMD) on cartilage destruction in mice with collagen-induced arthritis (CIA) and its mechanism.
Method
2
Thirty-six DBA/1 mice in SPF grades were randomly divided into 6 groups, namely, the normal group, the model group, the methotrexate (MTX) group, the low-dose GSZMD group, the medium-dose GSZMD group, and the high-dose GSZMD group. Except the normal group, mice in the other 5 groups were used to establish the model of CIA by secondary immunization. The mice were given normal saline, MTX (1.5 mg·kg
-1
, 2 times a week), and low, medium, and high-doses GSZMD (6.3, 12.6, 25.2 g·kg
-1
·d
-1
) by intragastric administration on the day of the onset of hind limb swelling for 4 weeks. The changes in the degree of foot swelling of mice in each group were observed and recorded. The content of matrix metalloproteinase (MMP)-1, MMP-3, MMP-9, and MMP-13 in serum was determined by enzyme-linked immunosorbent assay (ELISA). The pathological changes in the ankle joint were observed by hematoxylin-eosin (HE) staining, and the cartilage destruction was observed by red fast green staining. The protein expression of the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) signaling pathway in ankle joints were detected by Western blot.
Result
2
As compared with the normal group, the degree of foot swelling, the content of MMP-1, MMP-3, MMP-9, and MMP-13 in serum and the expression levels of phosphorylation (p)-JAK2/JAK2 and p-STAT3/STAT3 in ankle joints of the model group were increased (
P
<
0.01), and the joint damage was aggravated. As compared with the model group, the degrees of foot swelling of the mice in the MTX group and the low, medium, and high-dose GSZMD group were reduced (
P
<
0.05,
P
<
0.01), and the content of MMP-1, MMP-3, MMP-9, and MMP-13 in serum was decreased (
P
<
0.05,
P
<
0.01). The pathological joint damage was alleviated, and the expression levels of p-JAK2/JAK2 and p-STAT3/STAT3 in ankle joints were decreased in the MTX group and GSZMD groups (
P
<
0.05,
P
<
0.01).
Conclusion
2
GSZMD can reduce the degree of joint swelling in mice with CIA, inhibit the expressions of MMP-1, MMP-3, MMP-9, and MMP-13, and alleviate the destruction of articular cartilage. Its mechanism is related to the JAK2/STAT3 signaling pathway.
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