机构地区:[1]兰州市第二人民医院骨科,兰州730046 [2]甘肃中医药大学中西医结合学院.中医外科教研室,兰州730000 [3]甘肃中医药大学教学实验实训中心生物化学实验室,兰州730000 [4]甘肃中医药大学第一临床医学院内科教研室,兰州730000 [5]甘肃中医药大学基础医学院微生物与免疫学教研室,兰州730000
出 处:《中华骨质疏松和骨矿盐疾病杂志》2023年第1期41-51,共11页Chinese Journal Of Osteoporosis And Bone Mineral Research
基 金:甘肃省中医药管理局科研项目(GZKP-2021-34);甘肃省教育科技创新项目(2022QB-091);兰州市卫生健康科技发展项目(2021004);甘肃中医药大学科学研究与创新基金项目(2021KCYB-12)。
摘 要:目的探讨Notch/Jagged1信号通路对膝骨关节炎(knee osteoarthritis,KOA)模型鼠软骨组织炎性反应因子及基质金属蛋白酶(matrix metalloproteinase,MMPs)表达的影响,并揭示藤黄健骨胶囊可能的干预机制。方法60只SD雌性大鼠随机分为假手术组、模型组、仙灵骨葆胶囊组[0.27 g/(kg·d)]及藤黄健骨胶囊干预组[高剂量0.36 g/(kg·d)、中剂量0.18 g/(kg·d)、低剂量0.09 g/(kg·d)],每组10只。除假手术组外,其余5组采用改良Hulth法构建KOA大鼠模型,模型制备成功后,分别给予仙灵骨葆胶囊及相应剂量的藤黄健骨胶囊灌胃给药,假手术组和模型组给予0.9%(质量分数)氯化钠注射液。给药2个月后股动脉采血处死大鼠,取患侧膝关节软骨采用苏木精-伊红(HE)染色观察关节软骨组织的形态变化;ELISA法检测关节软骨组织中白细胞介素-1β(interleukin-1β,IL-1β)、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、Notch1和Jagged1含量变化;免疫组化法观察关节软骨组织中Col-Ⅱ、MMP-9、MMP-13、Notch1和Jagged1蛋白表达变化。结果与假手术组比较,模型组关节面脱落、严重破坏,软骨细胞分布紊乱;模型组软骨细胞Mankin(5.56±0.85)评分、IL-1β(11.13±2.19)、TNF-α(98.29±9.13)、Notch1(5.03±0.37)和Jagged1(222.54±36.87)含量均显著升高,MMP-9(1.54±0.72)、MMP-13(0.41±0.04)、Notch1(0.39±0.05)和Jagged1(0.38±0.05)等蛋白的免疫反应性均显著增强,Col-Ⅱ(0.15±0.04)蛋白的免疫反应性则显著降低(P<0.05)。与模型组比较,藤黄健骨胶囊0.36 g/(kg·d)剂量组软骨细胞形态和分布趋于正常;其软骨组织Mankin(2.86±0.48)评分显著降低,Col-Ⅱ(0.39±0.03)蛋白的免疫反应性则显著增强(P<0.05);藤黄健骨胶囊0.36、0.18 g/(kg·d)剂量组Jagged1(170.54±41.09、183.46±33.12)含量显著降低,MMP-9(0.68±0.25、1.14±0.49)和Jagged1(0.21±0.05、0.26±0.07)等蛋白的免疫反应性也均显著降低(P<0.05);藤黄健骨胶囊0.36、0.18、0.09 g/(kg·Objective To explore the roles of Notch/Jagged1 signaling pathway in inflammatory factors and matrix metalloproteinases(MMPs)of cartilage tissue in rat model of knee osteoarthrosis,and to evaluate the possible mechanism of tenghuangjiangu capsule in treating knee osteoarthritis(KOA).Methods Sixty SD female rats were randomly divided into sham operation group,model group,xianlinggubao capsule group[(0.27 g/(kg·d)],and tenghuangjiangu capsule intervention groups[high-dose 0.36 g/(kg·d),medium-dose 0.18 g/(kg·d),and low-dose 0.09 g/(kg·d)],and there were 10 rats in each group.Except for the sham operation group,KOA model rats were induced by modified Hulth method in the other five groups.After successful modeling,xianlinggubao capsule and the corresponding dose of tenghuangjiangu capsule was given oraly,the sham operation group and model group were given normal saline.On the 2nd month after administration,rats were sacrificed by femoral artery blood collection.HE staining was adopted to observe the morphologic changes of cartilage articularis of affected side.ELISA measured the contents of interleukin-1β(IL-1β),tumor necrosis factor-α(TNF-α),Notch1,and Jagged1.The expression of Col-Ⅱ,MMP-9,MMP-13,Notch1,and Jagged1 observed by immunohistochemistry staining.Results Compared with the sham operation group,the morphologic changes of cartilage articularis in the model group showed abscission,seriously damaged,disorder distribution.The Mankin(5.56±0.85)score and the concentrations of IL-1β(11.13±2.19),TNF-α(98.29±9.13),Notch1(5.03±0.37),and Jagged1(222.54±36.87)were significantly increased.The level of MMP-9(1.54±0.72),MMP-13(0.41±0.04),Notch1(0.39±0.05),and Jagged1(0.38±0.05)significantly increased;however,the level of ColⅡ(0.15±0.04)significantly decreased(P<0.05).Compared with the model group,cartilage structure and distribution was tended to be normal in the 0.36 g/(kg·d)group of tenghuang jiangu capsule.The Mankin(2.86±0.48)score in the 0.36 g/kg group of tenghuangjiangu capsule were signifi
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