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1.南京中医药大学 骨伤修复与重建新技术实验室,南京 210023
2.南京中医药大学 附属医院,南京 210029
3.南京中医药大学 针灸推拿学院·养生康复学院,南京 210023
许奇,在读硕士,从事中医药防治膝骨关节炎工作,E-mail:670370778@qq.com
黄桂成,教授,主任医师,博士生导师,从事中医药防治骨关节炎工作,E-mail:hgc@njucm.edu.cn
收稿日期:2021-02-24,
网络出版日期:2021-04-15,
纸质出版日期:2021-07-05
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许奇,钱佳佳,许炜民等.温经通络汤对膝骨关节炎模型小鼠VEGF/VEGFR2/ERK1/2信号通路的影响[J].中国实验方剂学杂志,2021,27(13):28-34.
XU Qi,QIAN Jia-jia,XU Wei-min,et al.Effect of Wenjing Tongluo Decoction on VEGF/VEGFR2/ERK1/2 Signaling Pathway in Mice with Knee Osteoarthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(13):28-34.
许奇,钱佳佳,许炜民等.温经通络汤对膝骨关节炎模型小鼠VEGF/VEGFR2/ERK1/2信号通路的影响[J].中国实验方剂学杂志,2021,27(13):28-34. DOI: 10.13422/j.cnki.syfjx.20211203.
XU Qi,QIAN Jia-jia,XU Wei-min,et al.Effect of Wenjing Tongluo Decoction on VEGF/VEGFR2/ERK1/2 Signaling Pathway in Mice with Knee Osteoarthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(13):28-34. DOI: 10.13422/j.cnki.syfjx.20211203.
目的
2
探讨温经通络汤改善膝骨关节炎关节(KOA)软骨缺损,延缓关节退变的可能作用机制。
方法
2
采用前交叉韧带切除术(ACLT法)建立KOA模型,实验分为假手术组、模型组、温经通络汤组(高、低剂量)和阳性药组。造模4周后中药组分别予以高、低剂量(80,20 g·kg
-1
)的温经通络汤灌胃;阳性药组予以硫酸氨基葡萄糖胶囊(0.29 g·kg
-1
);假手术组与模型组均予等体积生理盐水灌胃。连续干预4周后苏木素-伊红(HE)染色观察软骨组织形态学变化并进行Mankin's评分;蛋白免疫印迹法(Western blot)和实时荧光定量聚合酶链式反应(Real-time PCR)检测血管内皮生长因子A(VEGFA),血管内皮生长因子受体2(VEGFR2),细胞外调节蛋白激酶1/2(ERK1/2)和血小板反应蛋白解整合素金属肽酶4(ADAMTS4)蛋白和mRNA的表达。
结果
2
HE染色结果显示与假手术组比较,模型组小鼠Mankin's评分显著升高(
P
<
0.01);与模型组比较,药物组均能明显改善造模引起的关节软骨面缺损,Mankin's评分均有显著降低(
P
<
0.01),但各给药组间差异无有统计学意义。与假手术组比较,模型组VEGFA,VEGFR2,ERK1/2和ADAMTS4蛋白和mRNA的表达显著升高(
P
<
0.01)。与模型组比较,各给药组可以显著抑制VEGFA和ERK1/2的蛋白表达(
P
<
0.01),硫酸氨基葡萄糖胶囊组效果要优于温经通络汤低剂量组(
P
<
0.05),但弱于温经通络汤高剂量组(
P
<
0.01);硫酸氨基葡萄糖胶囊组可以抑制VEGFR2和ADAMTS4的蛋白表达,作用与温经通络汤低剂量组相当,作用均弱于温经通络汤高剂量组(
P
<
0.05)。
结论
2
温经通络汤可以改善KOA小鼠关节软骨损伤,其作用机制可能与VEGF/VEGFR2/ERK1/2信号通路有关。
Objective
2
To investigate the possible mechanism of Wenjing Tongluo decoction (WTD) in alleviating articular cartilage defect in knee osteoarthritis (KOA) and delaying joint degeneration.
Method
2
The KOA model was established by anterior cruciate ligament transection (ACLT). Mice were classified into sham-operated group, model group, WTD high-dose and low-dose groups, and positive control group. Four weeks after modeling, WTD groups and the positive control group were given WTD (80, 20 g·kg
-1
) and glucosamine sulfate capsules (0.29 g·kg
-1
), respectively, and the sham-operated group and model group received normal saline of the equivalent volume. After continuous intervention for 4 weeks, hemoxylin-eosin (HE) staining was used to observe the morphological changes of cartilage and Mankin scoring system was employed to score the knee cartilage. Western blot was combined with Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) to detect the protein and mRNA levels of vascular endothelial growth factor
α
(VEGFA), vascular endothelial growth factor receptor 2 (VEGFR2), extracellular signal-related kinase 1/2 (ERK1/2) and a disintegrin and metalloproteinase with thrombospondin motifs 4 (ADAMTS4).
Result
2
The Mankin score in the model group increased as compared with that in the sham-operated group (
P
<
0.01). Compared with the model group, administration groups demonstrated alleviated articular cartilage defect and low Mankin score (
P
<
0.01), but there was no statistical significance in Mankin score between the WTD groups and positive control group. The protein and mRNA levels of VEGFA, VEGFR2, ERK1/2, and ADAMTS4 in the model group were significantly higher than those in the sham-operated group (
P
<
0.01). The protein expression of VEGFA and ERK1/2 was inhibited in each administration group as compared with that in the model group (
P
<
0.01), and the inhibition in the positive control group was stronger than that in the WTD low-dose group (
P
<
0.05) but weaker than that in the WTD high-dose group (
P
<
0.01). Glucosamine Sulfate capsules suppressed the expression of VEGFR2 and ADAMTS4 to the extent the same with low-dose WTD but weaker than the high-dose WTD (
P
<
0.05).
Conclusion
2
WTD can relieve the articular cartilage injury in KOA mice, and the mechanism may be related to VEGF/VEGFR2/ERK1/2 signaling pathway.
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