首页|六味地黄汤对UUO大鼠肾组织β-catenin及EMT的影响

六味地黄汤对UUO大鼠肾组织β-catenin及EMT的影响

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目的 探讨六味地黄汤(Liuwei Dihuang decoction,LWDHD)对单侧输尿管梗阻(unilateral ureteric obstrutction,UUO)大鼠肾组织中上皮钙黏蛋白E(E-cadherin)、β-连环蛋白(β-catenin)、α-平滑肌肌动蛋白(α-SMA)的表达、肾脏组织病理变化及上皮-间质转化(epithelial-mesenchymal trans-formation,EMT)的影响。方法 SPF级SD大鼠48只随机分成假手术组(Sham)、模型组(UUO)、LWDHD低、中、高组(LWDHD 3。375、6。75、13。5 g。kg-1)、依那普利组(Enala-pril)10 mg·kg-1,每组8只。采用HE、Masson染色法观察6组大鼠患侧肾组织的病理变化和胶原纤维沉积情况;免疫组化及Western blot检测各组大鼠肾组织中上E-cadherin、β-catenin、α-SMA蛋白的表达情况。结果 与Sham组比较,UUO组大鼠患侧肾组织中肾小球硬化,肾小管扩张,间质纤维化明显。β-catenin、α-SMA蛋白表达增加,E-cadherin蛋白表达降低(P<0。05);与UUO组相比,LWDHD组和Enala-pril组中大鼠肾组织病理改变和胶原沉积明显改善,β-cate-nin、α-SMA 蛋白表达降低,E-cadherin蛋白表达增加(P<0。05)。结论 LWDHD可能通过下调β-catenin的表达,进而抑制EMT,发挥缓解肾纤维化的作用。
Effect of Liuwei Dihuang decoction on β-catenin and EMT in kidney tissue of UUO rats
Aim To explore the effect of Liuwei Di-huang decoction(LWDHD)on the expression of β-catenin,E-cadherin,α-SMA,the pathological changes of renal tissue,and the changes of an epithelial-mesen-chymal transformation(EMT)in renal tissue of rats with unilateral ureteral obstruction(UUO).Methods Forty-eight SPF grade SD rats were randomly divided into sham group(Sham),model group(UUO),Li-uwei Dihuang decoction low,medium,and high groups(LWDHD 3.375,6.75,13.5 g·kg-1)and enalapril group(10 mg·kg-1),with eight rats in each group.HE and Masson staining were used to observe the path-ological changes and collagen fiber deposition in the af-fected renal tissue of the six groups.Immunohisto-chemistry and Western blot were employed to detect the expression of E-cadherin,β-catenin,and α-SMA in re-nal tissue of rats in each group.Results Compared with the sham group,the UUO group showed glomeru-lar sclerosis,tubular dilatation,and more severe inter-stitial fibrosis.The expression of β-catenin and α-SMA protein increased,while the expression of E-cadherin protein decreased(P<0.05).Compared with the UUO group,the pathological changes and collagen deposition of renal tissue in the LWDHD group and en-alapril group were significantly improved,the protein levels of β-catenin and α-SMA decreased,while the protein level of E-cadherin increased(P<0.05).Conclusions LiuWei Dihuang decoction may down-regulate β-catenin expression,and then inhibit EMT,thus playing a role in alleviating renal fibrosis.

renal fibrosisunilateral ureteral obstruc-tionβ-cateninEMTLiuwei Dihuang decoctionhistopathology

王晖、张海英、高海波、郭金晶、裴刚、唐群

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湖南中医药大学医学院,湖南长沙 410208

湖南中医药大学药学院,湖南长沙 410208

肾纤维化 单侧输尿管梗阻 β-catenin EMT 六味地黄汤 组织病理

湖南省自然科学基金

2021JJ30506

2023

中国药理学通报
中国药理学会

中国药理学通报

CSTPCDCSCD北大核心
影响因子:1.54
ISSN:1001-1978
年,卷(期):2023.39(12)
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