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野蔷薇根总黄酮对类风湿关节炎模型大鼠血管损伤的改善作用
及机制
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李开言 ,张 飞 ,田 萍 ,杨 丹 ,张 薇 ,王晓丽 ,屠万倩 ,刘一菲(1.河南省中西医结合医院中药研究
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所,郑州 450004;2.河南中医药大学药学院,郑州 450046)
中图分类号 R965;R285 文献标志码 A 文章编号 1001-0408(2024)08-0931-05
DOI 10.6039/j.issn.1001-0408.2024.08.06
摘 要 目的 研究野蔷薇根总黄酮对类风湿关节炎(RA)模型大鼠血管损伤的改善作用及其潜在机制。方法 将雌性Wistar大
鼠随机分为正常对照组、模型组、阿司匹林组(阳性对照,30 mg/kg)和野蔷薇根总黄酮低、高剂量组(4.15、8.30 g/kg,以生药量计),
每组 10 只。除正常对照组外,其余各组大鼠采用胶原诱导+高脂饮食喂养建立 RA 模型。造模 14 d 后,各组大鼠灌胃相应药液/
0.5%羧甲基纤维素钠溶液,每天1次,连续36 d。定期评估大鼠的全身评分、关节炎指数和足爪肿胀数;末次给药后,检测大鼠血
清中白细胞介素6(IL-6)、细胞间黏附分子1(ICAM-1)和血管细胞黏附分子1(VCAM-1)水平,观察大鼠胸主动脉血管组织病理学
形态变化,检测胸主动脉血管组织中 Toll 样受体 4(TLR4)蛋白表达水平和 Janus 激酶 2(JAK2)、信号转导及转录激活因子 3
(STAT3)蛋白磷酸化水平。结果 与正常对照组比较,模型组大鼠血清中 IL-6、ICAM-1、VCAM-1 水平和胸主动脉血管组织中
TLR4蛋白表达水平及JAK2、STAT3蛋白磷酸化水平均显著升高(P<0.01),胸主动脉血管组织可见动脉粥样斑块(粥瘤)、胆固醇
结晶、淋巴细胞浸润及少量未破裂的泡沫细胞聚集。与模型组比较,在第28天时,野蔷薇根总黄酮各剂量组大鼠的全身评分(低
剂量组除外)、关节炎指数和足爪肿胀数均显著降低(P<0.05或P<0.01);在第49天时,野蔷薇根总黄酮低剂量组大鼠的全身评
分、关节炎指数和足爪肿胀数均显著降低(P<0.05或P<0.01);野蔷薇根总黄酮各剂量组大鼠血清和血管组织中其余定量指标均
显著逆转(P<0.05或P<0.01),血管组织病理损伤明显减轻。结论 野蔷薇根总黄酮可改善RA模型大鼠的血管损伤,其作用可能
与降低血管组织中TLR4蛋白表达,抑制IL-6/JAK2/STAT3信号通路活性有关。
关键词 野蔷薇根总黄酮;类风湿关节炎;炎症;血管损伤;TLR4;IL-6/JAK2/STAT3信号通路
Improvement effect and mechanism of total flavonoids from Rosa multiflora root on vascular injury in
rheumatoid arthritis model rats
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LI Kaiyan ,ZHANG Fei ,TIAN Ping ,YANG Dan ,ZHANG Wei ,WANG Xiaoli ,TU Wanqian ,LIU Yifei 1
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(1. Institute of Chinese Medicine, Henan Integrative Medicine Hospital, Zhengzhou 450004, China;2. College
of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China)
ABSTRACT OBJECTIVE To study the improvement effect of total flavonoids from Rosa multiflora root on vascular injury in
rheumatoid arthritis (RA) model rats and its potential mechanism. METHODS Female Wistar rats were randomly divided into
normal control group, model group, aspirin group (positive control, 30 mg/kg), low-dose and high-dose groups of total flavonoids
from R. multiflora root (4.15, 8.30 g/kg, by crude drug), with 10 rats in each group. Except for the normal control group, the RA
model was induced in other groups by collagen induction and high-fat diet. After 14 days of modeling, they were given
corresponding drug solution/0.5% sodium carboxymethyl cellulose solution intragastrically, once a day, for 36 consecutive days.
The total body score, arthritis index (AI) and swollen joint count (SJC) of the rats were evaluated regularly. After the last
medication, serum levels of interleukin-6 (IL-6), intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-
1 (VCAM-1) were determined. The pathological morphological changes in the vascular tissue of thoracic aorta were observed; the
protein expression of Toll-like receptor 4 (TLR4) and the protein phosphorylation levels of Janus kinase 2 (JAK2) and signal
transduction and activator of transcription 3 (STAT3) in vascular tissue of thoracic aorta were measured. RESULTS Compared with
the normal control group, serum levels of IL-6, ICAM-1 and VCAM-1, protein expression of TLR4, and the protein
phosphorylation levels of JAK2 and STAT3 in vascular tissue of thoracic aorta were increased significantly in model group (P<
0.01). The atherosclerotic plaque (atheroma), cholesterol crystal, lymphocyte infiltration and a small number of unbroken foam
cell aggregation could be seen in the vascular tissue of thoracic
Δ 基金项目 河 南 省 自 然 科 学 基 金 青 年 科 学 基 金 项 目(No. aorta. Compared with the model group, total body score
222300420199);河 南 中 医 药 大 学“ 博 士 科 研 基 金 ”项 目(No.
(except for the low-dose group), AI and SJC were decreased
BSJJ2022-05)
significantly in groups of total flavonoids from R. multiflora
*第一作者 助理研究员,硕士。研究方向:中药药理。E-mail:
297083488@qq.com root on the 28th day (P<0.05 or P<0.01); total body score,
# 通信作者 高级实验师,博士。研究方向:中药质量标准与品种 AI and SJC were decreased significantly in low-dose group of
整理。E-mail:zhfei0123@hactcm.edu.cn total flavonoids from R. multiflora root on the 49th day (P<
中国药房 2024年第35卷第8期 China Pharmacy 2024 Vol. 35 No. 8 · 931 ·