To examine the effect of multi-glycoside of Tripterygium wilfordii Hook. f. （GTW） on proteinuria and acute glomerular immune lesion in experimental mesangial proliferative glomerulonephritis （MsPGN） induced by ant...To examine the effect of multi-glycoside of Tripterygium wilfordii Hook. f. （GTW） on proteinuria and acute glomerular immune lesion in experimental mesangial proliferative glomerulonephritis （MsPGN） induced by anti-Thyl. 1 monoelonal antibody （mAb） 1-22-3. The reversible model of MsPGN with anti-Thyl. 1 mAb 1-22-3 was established. After 7 days of oral treatment with GTW （ 100 mg/kg per day） and vehicle （distilled water, 5 ml/kg per day）, its effects on proteinuria, renal functions, mesangial morphological change, glomerular macrophage accumulation, and mRNA expressions of cytokines （PDGF-BB and MCP-1 ） were evaluated by light microscope （LM）, immunofluorescence （IF）, and reverse transcription polymerase chain reaction （RT-PCR）. It was found that GTW ameliorated proteinuria （on day 3 and day 7）, mesangial proliferation （total cell number, matrix expansion, a-smooth muscle actin expression, and collagen type Ⅰ expression） and macrophage accumulation （ED3^＋ ） in experimental MsPGN. In addition, GTW significantly suppressed the increased mRNA expressions for MCP-1 （67.6% to eontrol group, P 〈 0.01） together with the tendency to reduce the expression of PDGF （24.44% to control group） on day 7. It is concluded that GTW can not only decrease proteinuria, but also ameliorate acute mesangial alterations and glomerular activated macrophage accumulation probably by reduction of cytokines. These data indicate that GTW is an effective agent for early MsPGN.展开更多
目的观察雷公藤多甙(multi-glycoside of Tripterygium wilfordii Hook.f.,GTW)对抗Thy1.1抗体肾炎蛋白尿和足细胞裂隙膜相关分子(nephrin、podocin)表达的影响。方法经尾静脉一次性注射500μg单克隆抗体(monoclonal antibody,mAb)1-22-...目的观察雷公藤多甙(multi-glycoside of Tripterygium wilfordii Hook.f.,GTW)对抗Thy1.1抗体肾炎蛋白尿和足细胞裂隙膜相关分子(nephrin、podocin)表达的影响。方法经尾静脉一次性注射500μg单克隆抗体(monoclonal antibody,mAb)1-22-3建立大鼠抗Thy1.1抗体肾炎模型。14只大鼠随机分为GTW干预组(简称GTW组)和安慰剂干预组(简称造模组)。实验1中,在注射抗体前3天,经灌胃给予GTW〔75mg/(kg.d)〕或安慰剂,直至造模后第14天,处死大鼠;实验2中,在注射抗体同时,经灌胃给予GTW〔100mg/(kg.d)〕或安慰剂,直至造模后第7天,处死大鼠。分别观察14天内或7天内模型鼠24h尿蛋白排泄量(urinary protein excretion,Upro)动态变化。在第14天或第7天,处死大鼠后,取出肾脏,分别观察肾小球形态学变化、肾小球内巨噬细胞浸润、肾小球内nephrin、podocin及其核酸表达。结果实验1中,GTW抑制抗Thy1.1抗体肾炎蛋白尿和系膜损伤,在第14天,对肾小球内nephrin、podocin免疫荧光染色强度无影响;实验2中,GTW改善抗Thy1.1抗体肾炎蛋白尿、系膜损伤、肾小球内巨噬细胞浸润,而且,在第7天,显著增强肾小球内nephrin、podocin及其核酸表达。结论在抗Thy1.1抗体肾炎中,nephrin、podocin表达的减弱可能会促进系膜损伤和蛋白尿。GTW改善系膜损伤和蛋白尿的作用,很可能是通过增强nephrin、podocin表达来实现的。展开更多
文摘To examine the effect of multi-glycoside of Tripterygium wilfordii Hook. f. （GTW） on proteinuria and acute glomerular immune lesion in experimental mesangial proliferative glomerulonephritis （MsPGN） induced by anti-Thyl. 1 monoelonal antibody （mAb） 1-22-3. The reversible model of MsPGN with anti-Thyl. 1 mAb 1-22-3 was established. After 7 days of oral treatment with GTW （ 100 mg/kg per day） and vehicle （distilled water, 5 ml/kg per day）, its effects on proteinuria, renal functions, mesangial morphological change, glomerular macrophage accumulation, and mRNA expressions of cytokines （PDGF-BB and MCP-1 ） were evaluated by light microscope （LM）, immunofluorescence （IF）, and reverse transcription polymerase chain reaction （RT-PCR）. It was found that GTW ameliorated proteinuria （on day 3 and day 7）, mesangial proliferation （total cell number, matrix expansion, a-smooth muscle actin expression, and collagen type Ⅰ expression） and macrophage accumulation （ED3^＋ ） in experimental MsPGN. In addition, GTW significantly suppressed the increased mRNA expressions for MCP-1 （67.6% to eontrol group, P 〈 0.01） together with the tendency to reduce the expression of PDGF （24.44% to control group） on day 7. It is concluded that GTW can not only decrease proteinuria, but also ameliorate acute mesangial alterations and glomerular activated macrophage accumulation probably by reduction of cytokines. These data indicate that GTW is an effective agent for early MsPGN.
文摘目的观察雷公藤多甙(multi-glycoside of Tripterygium wilfordii Hook.f.,GTW)对抗Thy1.1抗体肾炎蛋白尿和足细胞裂隙膜相关分子(nephrin、podocin)表达的影响。方法经尾静脉一次性注射500μg单克隆抗体(monoclonal antibody,mAb)1-22-3建立大鼠抗Thy1.1抗体肾炎模型。14只大鼠随机分为GTW干预组(简称GTW组)和安慰剂干预组(简称造模组)。实验1中,在注射抗体前3天,经灌胃给予GTW〔75mg/(kg.d)〕或安慰剂,直至造模后第14天,处死大鼠;实验2中,在注射抗体同时,经灌胃给予GTW〔100mg/(kg.d)〕或安慰剂,直至造模后第7天,处死大鼠。分别观察14天内或7天内模型鼠24h尿蛋白排泄量(urinary protein excretion,Upro)动态变化。在第14天或第7天,处死大鼠后,取出肾脏,分别观察肾小球形态学变化、肾小球内巨噬细胞浸润、肾小球内nephrin、podocin及其核酸表达。结果实验1中,GTW抑制抗Thy1.1抗体肾炎蛋白尿和系膜损伤,在第14天,对肾小球内nephrin、podocin免疫荧光染色强度无影响;实验2中,GTW改善抗Thy1.1抗体肾炎蛋白尿、系膜损伤、肾小球内巨噬细胞浸润,而且,在第7天,显著增强肾小球内nephrin、podocin及其核酸表达。结论在抗Thy1.1抗体肾炎中,nephrin、podocin表达的减弱可能会促进系膜损伤和蛋白尿。GTW改善系膜损伤和蛋白尿的作用,很可能是通过增强nephrin、podocin表达来实现的。
