1.上海中医药大学附属上海市中西医结合医院脉管病科(上海 200082)
2.上海市中医药研究院脉管病研究所(上海 200082)
赵志国,男,硕士,副主任医师,主要从事中西医结合治疗周围血管疾病及痛风病的基础与临床研究工作
李骥,副主任医师;E-mail:13917975752@163.com
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赵志国,赵诚,梁志强等.基于调节TGF⁃β1/Smad信号通路中正负调控蛋白再平衡探讨健脾补肾利湿方治疗高尿酸肾病的作用机制研究[J].上海中医药杂志,2022,56(06):85-91.
ZHAO Zhiguo,ZHAO Cheng,LIANG Zhiqiang,et al.Study on mechanism of Jianpi Bushen Lishi Recipe on treatment of hyperuricemia nephropathy by regulating positive and negative regulatory protein rebalance in TGF⁃β1/Smad signal pathway[J].Shanghai Journal of Traditional Chinese Medicine,2022,56(06):85-91.
赵志国,赵诚,梁志强等.基于调节TGF⁃β1/Smad信号通路中正负调控蛋白再平衡探讨健脾补肾利湿方治疗高尿酸肾病的作用机制研究[J].上海中医药杂志,2022,56(06):85-91. DOI: 10.16305/j.1007-1334.2022.2003211.
ZHAO Zhiguo,ZHAO Cheng,LIANG Zhiqiang,et al.Study on mechanism of Jianpi Bushen Lishi Recipe on treatment of hyperuricemia nephropathy by regulating positive and negative regulatory protein rebalance in TGF⁃β1/Smad signal pathway[J].Shanghai Journal of Traditional Chinese Medicine,2022,56(06):85-91. DOI: 10.16305/j.1007-1334.2022.2003211.
目的,2,观察健脾补肾利湿方对高尿酸肾病大鼠肾组织TGF-β1/Smads信号通路的调节作用。,方法,2,建立高尿酸肾病损伤大鼠模型,随机分为模型组、别嘌醇组和中药组(健脾补肾利湿方),每组12只,另取12只SD大鼠设为空白对照组,用药8周后,采用ELISA法检测24 h尿蛋白定量(24 hUPQ)、血清尿酸(SUA)、血清肌酐(Scr),血清尿素氮(BUN)的含量;Western blot法检测大鼠肾脏组织的转化生长因子-β1(TGF-β1)、纤维粘连蛋白(FN)、Ⅳ型胶原(Col4)、Smad同源物2(Smad2)、Smad同源物3(Smad3)与Smad同源物7(Smad7)和磷酸化Smad2/3/7蛋白表达;RT-PCR法检测各组大鼠肾组织,TGF,-,β1,、,Col4,、,FN,、,Smad2/3,、,Smad7, mRNA表达。,结果,2,与模型组比较,中药组和别嘌醇组大鼠24 hUPQ、SUA、Scr和BUN表达均显著下降(,P,<,0.01),且中药组优于别嘌醇组(,P,<,0.01);中药组大鼠肾组织TGF-β1、FN、Col4蛋白及,TGF,-,β1,、,FN,、,Col4, mRNA表达均显著下降(,P,<,0.01);中药组大鼠肾组织Smad2/3、p-Smad2/3蛋白及,Smad2/3, mRNA表达均显著下降(,P,<,0.05);中药组大鼠肾组织Smad7蛋白及,Smad7, mRNA表达显著上升(,P,<,0.05)。,结论,2,健脾补肾利湿方可能通过调节TGF-β1/Smad信号通路中正调控蛋白(Smad2/3)和负调控蛋白(Smad7)的再平衡,抑制TGF-β1信号通路,从而起到延缓肾纤维化的作用。
Objective,2,To observe the regulation effect of Jianpi Bushen Lishi Recipe on TGF-β1/Smads signal pathway in renal tissue of rats with hyperuricemia nephropathy.,Methods,2,The rat model of hyperuricemia nephropathy were established, and were randomly divided into model group, allopurinol group and traditional Chinese medicine group(treated with Jianpi Bushen Lishi Recipe), with 12 rats in each group. Another 12 SD rats were selected as the blank control group. After 8 weeks of administration, ELISA was used to detect the 24 hour urinary protein quantity (24 hUPQ) and the content of serum uric acid(SUA), serum creatinine(Scr)and blood urea nitrogen(BUN)in plasma. Western blot was used to detect the expressions of transforming growth factor-β1 (TGF-β1), fibronectin (FN), collagen Ⅳ (Col4), Smad homolog 2 (Smad2), Smad homolog 3 (Smad3), Smad homolog 7 (Smad7) and phosphorylated Smad2/3/7 proteins in rat renal tissue. The expression levels of ,TGF,-,β1,, ,Col4,, ,FN,,, Smad2/3, and ,Smad7, mRNA in renal tissue were determined by RT-PCR.,Results,2,Compared with model group, the expression levels of 24 hUPQ, SUA, Scr and BUN in traditional Chinese medicine group and allopurinol group were significantly decreased(,P,<,0.01),and traditional Chinese medicine group was superior than allopurinol group(,P,<,0.01). Compared with model group, the expressions of TGF-β1, FN, Col4 protein, ,TGF,-,β1, mRNA,,Fn, mRNA and ,Col4, mRNA in renal tissue of rats in Chinese medicine group were all decreased significantly (,P,<,0.01). And the expressions of Smad2/3,p-Smad2/3 protein and ,Smad2/3, mRNA in renal tissue of rats in traditional Chinese medicine group were decreased significantly (,P,<,0.05). But the expressions of Smad7 protein and ,Smad7, mRNA in renal tissue of rats in traditional Chinese medicine group were increased significantly (P,<,0.05).,Conclusion,2,Jianpi Bushen Lishi Recipe may inhibit TGF-β1 signal pathway by regulating the rebalance of positive regulatory protein (Smad2/3) and negative regulatory protein (Smad7) in the TGF-β1 signal pathway,thus delaying renal fibrosis.
高尿酸肾病健脾补肾利湿方TGF-β1/Smad信号通路作用机制
hyperuricemia nephropathyJianpi Bushen Lishi RecipeTGF-β1/Smad signal pathwaymechanism
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