OBJECTIVE: To observe the effects of serum containing Mahuang(Herba Ephedra Sinica) or Wuweizi(Fructus Schisandrae Chinensis) on the migration of alveolar macrophages(AM) and interstitial macrophages(IM) from normal rats, and to analyze and compare the mechanisms leading to cell migration differences.METHODS: Rats were randomly divided into three groups: Mahuang(Herba Ephedra Sinica), Wuweizi(Fructus Schisandrae Chinensis), and blank serum. After treatment with the herbs, serum was extracted from the rats. AM and IM were isolated from normal rats and cultured. The effects of Mahuang(Herba Ephedra Sinica) and Wuweizi(Fructus Schisandrae Chinensis) medicated serum on normal rat AM and IM chemotactic migration were determined by transwell assays. The CC chemokine receptor(CCR) 2, CCR5, voltage-gated Kvl. 3 K^+channel(Kv1. 3), and voltage-gated Kvl. 5 K^+channel(Kv1. 5) protein levels were analyzed by western blotting.RESULTS: The migration quantities of AM and IM in the Mahuang(Herba Ephedra Sinica) and Wuweizi(Fructus Schisandrae Chinensis) medicated serum groups were significantly higher than those in the blank serum group(P < 0.01). Compared with the Wuweizi(Fructus Schisandrae Chinensis) medicated serum group, the migration quantity of cultured rat AM in the Mahuang(Herba Ephedra Sinica) medicated serum group was significantly increased(P <0.01). Meanwhile, compared with the Mahuang(Herba Ephedra Sinica) medicated serum group, the migration quantity of cultured rat IM in the Wuweizi(Fructus Schisandrae Chinensis) medicated serum group was significantly increased(P < 0.01).CCR2, CCR5, Kv1. 3, and Kv1. 5 proteins were expressed on the AM cell surface, and showed significantly higher expression in the Mahuang(Herba Ephedra Sinica) medicated serum group compared with the Wuweizi(Fructus Schisandrae Chinensis)medicated serum group. In contrast, CCR5, Kv1.3,and Kv1.5 proteins were expressed on the IM cell surface, and showed significantly higher expression in the Wuweizi(Fructus Schisandrae Chinensis)medicated serum g
目的:观察甲氨喋吟(MTX)联合中药对胶原诱导关节炎大鼠治疗作用及对血清血管内皮细胞生长因子(VEGF)水平与关节滑膜VEGF m RNA表达的影响。方法:Waster大鼠建立胶原诱导关节炎模型,连续给药2个月,各组大鼠取血,采用ELISA法检测大鼠中血清VEGF水平,以荧光PCR法检测滑膜组织VEGF m RNA表达。结果:1血清VEGF水平:与模型组比较,各治疗组(除MTX+雷公藤组外)有显著性差异(P<0.05)。2关节滑膜VEGF m RNA表达:与对照组比较,模型组、MTX组、雷公藤组、MTX+海蛇药酒组存在显著性差异(P<0.05);与模型组比较,各组均存在显著性差异(P<0.05)。结论:胶原诱导关节炎发生与大鼠血清VEGF水平升高及关节滑膜组织VEGF m RNA表达升高有较高相关性,MTX、雷公藤及联合海蛇药酒对大鼠关节炎有一定的治疗作用。
目的:观察甲氨蝶呤(MTX)联合不同中药影响Ⅱ型胶原诱导关节炎(CIA)大鼠血清肿瘤坏死因子-α(TNF-α)以及孤核受体m RNA(RORγt m RNA)表达的差异。方法:将Waster大鼠随机分为5组,建立Ⅱ型胶原诱导关节炎模型,正常组和模型组给予0.9%氯化钠溶液灌胃,各给药组分别给予对应药品,6周后,各组大鼠经腹主动脉取血,采用ELISA法检测大鼠中血清TNF-α,以荧光PCR法检测大鼠脾脏RORγt m RNA表达,评价MTX联合中药对类风湿性关节炎治疗差异。结果:与正常组比较,模型组大鼠血清TNF-α及脾脏RORγt m RNA表达水平均有所升高(P<0.01);与模型组比较,各治疗组大鼠血清TNF-α及脾脏RORγt m RNA表达水平降低(P<0.01)。与MTX组比较,MTX+雷公藤组和MTX+海蛇药酒组大鼠血清TNF-α及脾脏RORγt m RNA表达水平均明显降低(P<0.05)。结论:MTX、MTX联合雷公藤与海蛇药酒对CIA大鼠有一定的治疗作用,且MTX+雷公藤、MTX+海蛇药酒治疗效果最佳,能显著下调关节滑膜RORγt m RNA的表达,降低血清TNF-α水平,从而发挥抑制关节炎性反应的作用。
