Objective： To observe the effect of norcantharidin（NCTD） on collagen-induced arthritis（CIA） rats. Methods： Sixty Sprague-Dawley（SD） rats were randomly divided into 6 groups（n=10）： normal group, CIA model gr...Objective： To observe the effect of norcantharidin（NCTD） on collagen-induced arthritis（CIA） rats. Methods： Sixty Sprague-Dawley（SD） rats were randomly divided into 6 groups（n=10）： normal group, CIA model group（model group）, NCTD low-dose group [1.35 mg/（kg·d）], NCTD middle-dose group [2.7 mg/（kg·d）], NCTD high-dose group [5.4 mg/（kg·d）] and methotrexate（MTX） group [1.8 mg/（kg/w）]. Anesthetized rats were sacrificed by luxation of cervical vertebra after 4 weeks of administration. The arthritis scores were evaluated twice a week. The pathological changes in the ankle joints of rats were observed by hematoxylin-eosin（H＆E） staining. The serum levels of interleukin（IL） 1β, IL-6, tumor necrosis factor（TNF）-α, vascular endothelial growth factor（VEGF）, IL-17 and transform growth factor（TGF） β were detected by enzyme linked immunosorbent assay（ELISA）. The mRNA expression of retinoid-related orphan nuclear receptor γ t（ROR γ t） and forkhead box P3（Foxp3） in peripheral blood lymphocytes were confirmed by real-time polymerase chain reaction. Results： MTX and high-dose NCTD not only decreased the arthritis scores but also alleviated the pathological changes in CIA rats＇ ankle joints compared with the model group（P〈0.05 or P〈0.01）. All doses of NCTD significantly inhibited the serum levels of IL-6, IL-17 and TNF-α in CIA rats（P〈0.05）. Only middle-and high-dose of NCTD prominently decreased serum IL-1β and TGF-β levels of CIA rats（P〈0.05）. However, NCTD has no effect on vascular endothelial growth factor（VEGF） level in CIA rats. The Foxp3 mRNA expression in all NCTD groups were increased significantly than in the model group（P〈0.05）. The mRNA expression of RORγt in NCTD high-dose group was decreased apparently in comparison with the model group（P〈0.05）. Conclusion： NCTD showed therapeutic effect on CIA rats by inhibition of cytokines and regulation of Th17/Treg cells.展开更多
Summary： The expression and activity of NF-kB in the synovium of collagen-induced arthritis （CIA） rats was detected in order to investigate the possible therapeutic effects of triptolide on rheumatoid arthritis （R...Summary： The expression and activity of NF-kB in the synovium of collagen-induced arthritis （CIA） rats was detected in order to investigate the possible therapeutic effects of triptolide on rheumatoid arthritis （RA）. The experimental Wistar rat model of CIA was set up by intradermal injection of emulsion of bovine collagen 11 and the successful rate of setting-up models was evaluated by arthritis index （AI）. Rats were grouped randomly into three groups： normal, model and treatment group. The expression of TNF-α and IL-6 in synovial fluid was detected by ELISA, and the expression and activity of NF kB in synovium by immunohistochemistry method and by electrophoretic mobility shift assay （EMSA） respectively. As compared with normal group, the expression of TNF a and IL-6 in synovia （P〈0. 05）, and the expression and activity of NF-kB （P〈0.05） in synovium were increased in model group. There was statistical difference in above-mentioned indexes between model group and treatment group. Triptolide may play a protective role in IRA via downregulating the expression and activity of NF-kB in synovium.展开更多
目的观察风湿痹痛方对胶原诱导型关节炎(CIA)大鼠血清细胞因子及滑膜组织Fas/Fas L m RNA表达的影响,探讨其相关的作用机制。方法采用大鼠足部皮内注射牛Ⅱ型胶原乳化剂方法建立CIA模型。实验大鼠随机分为空白组、模型组、雷公藤多苷组...目的观察风湿痹痛方对胶原诱导型关节炎(CIA)大鼠血清细胞因子及滑膜组织Fas/Fas L m RNA表达的影响,探讨其相关的作用机制。方法采用大鼠足部皮内注射牛Ⅱ型胶原乳化剂方法建立CIA模型。实验大鼠随机分为空白组、模型组、雷公藤多苷组和风湿痹痛方低、中、高各剂量组,各给药组给予相应药物灌胃,连续14 d。观察各组大鼠体质量和关节炎评分;ELISA检测血清白细胞介素(IL)-1β、IL-15、转化生长因子(TGF)-β1含量;RT-PCR检测滑膜组织Fas、Fas L的m RNA表达。结果与模型组比较,风湿痹痛方中、高剂量组大鼠足部关节炎评分和血清IL-15含量显著降低,TGF-β1含量显著升高(P<0.01),风湿痹痛方高剂量组Fas m RNA表达显著降低,Fas L m RNA表达显著升高(P<0.05)。结论风湿痹痛方对CIA有一定的免疫调节作用,其机制可能是通过调控Fas/Fas L凋亡系统,诱导滑膜组织细胞凋亡,抑制滑膜增生。展开更多
基金Supported by the National Natural Science Foundation of China(No.81273837)
文摘Objective： To observe the effect of norcantharidin（NCTD） on collagen-induced arthritis（CIA） rats. Methods： Sixty Sprague-Dawley（SD） rats were randomly divided into 6 groups（n=10）： normal group, CIA model group（model group）, NCTD low-dose group [1.35 mg/（kg·d）], NCTD middle-dose group [2.7 mg/（kg·d）], NCTD high-dose group [5.4 mg/（kg·d）] and methotrexate（MTX） group [1.8 mg/（kg/w）]. Anesthetized rats were sacrificed by luxation of cervical vertebra after 4 weeks of administration. The arthritis scores were evaluated twice a week. The pathological changes in the ankle joints of rats were observed by hematoxylin-eosin（H＆E） staining. The serum levels of interleukin（IL） 1β, IL-6, tumor necrosis factor（TNF）-α, vascular endothelial growth factor（VEGF）, IL-17 and transform growth factor（TGF） β were detected by enzyme linked immunosorbent assay（ELISA）. The mRNA expression of retinoid-related orphan nuclear receptor γ t（ROR γ t） and forkhead box P3（Foxp3） in peripheral blood lymphocytes were confirmed by real-time polymerase chain reaction. Results： MTX and high-dose NCTD not only decreased the arthritis scores but also alleviated the pathological changes in CIA rats＇ ankle joints compared with the model group（P〈0.05 or P〈0.01）. All doses of NCTD significantly inhibited the serum levels of IL-6, IL-17 and TNF-α in CIA rats（P〈0.05）. Only middle-and high-dose of NCTD prominently decreased serum IL-1β and TGF-β levels of CIA rats（P〈0.05）. However, NCTD has no effect on vascular endothelial growth factor（VEGF） level in CIA rats. The Foxp3 mRNA expression in all NCTD groups were increased significantly than in the model group（P〈0.05）. The mRNA expression of RORγt in NCTD high-dose group was decreased apparently in comparison with the model group（P〈0.05）. Conclusion： NCTD showed therapeutic effect on CIA rats by inhibition of cytokines and regulation of Th17/Treg cells.
文摘Summary： The expression and activity of NF-kB in the synovium of collagen-induced arthritis （CIA） rats was detected in order to investigate the possible therapeutic effects of triptolide on rheumatoid arthritis （RA）. The experimental Wistar rat model of CIA was set up by intradermal injection of emulsion of bovine collagen 11 and the successful rate of setting-up models was evaluated by arthritis index （AI）. Rats were grouped randomly into three groups： normal, model and treatment group. The expression of TNF-α and IL-6 in synovial fluid was detected by ELISA, and the expression and activity of NF kB in synovium by immunohistochemistry method and by electrophoretic mobility shift assay （EMSA） respectively. As compared with normal group, the expression of TNF a and IL-6 in synovia （P〈0. 05）, and the expression and activity of NF-kB （P〈0.05） in synovium were increased in model group. There was statistical difference in above-mentioned indexes between model group and treatment group. Triptolide may play a protective role in IRA via downregulating the expression and activity of NF-kB in synovium.
文摘目的观察风湿痹痛方对胶原诱导型关节炎(CIA)大鼠血清细胞因子及滑膜组织Fas/Fas L m RNA表达的影响,探讨其相关的作用机制。方法采用大鼠足部皮内注射牛Ⅱ型胶原乳化剂方法建立CIA模型。实验大鼠随机分为空白组、模型组、雷公藤多苷组和风湿痹痛方低、中、高各剂量组,各给药组给予相应药物灌胃,连续14 d。观察各组大鼠体质量和关节炎评分;ELISA检测血清白细胞介素(IL)-1β、IL-15、转化生长因子(TGF)-β1含量;RT-PCR检测滑膜组织Fas、Fas L的m RNA表达。结果与模型组比较,风湿痹痛方中、高剂量组大鼠足部关节炎评分和血清IL-15含量显著降低,TGF-β1含量显著升高(P<0.01),风湿痹痛方高剂量组Fas m RNA表达显著降低,Fas L m RNA表达显著升高(P<0.05)。结论风湿痹痛方对CIA有一定的免疫调节作用,其机制可能是通过调控Fas/Fas L凋亡系统,诱导滑膜组织细胞凋亡,抑制滑膜增生。
