Objective： To investigate the effects of Biejia Ruangan Tablet （复方鳖甲软肝片, BRT）- containing serum on the expression of matrix metalloproteinase （MMP-9） and tissue inhibitor of metalloproteinase （TIMP-1） in...Objective： To investigate the effects of Biejia Ruangan Tablet （复方鳖甲软肝片, BRT）- containing serum on the expression of matrix metalloproteinase （MMP-9） and tissue inhibitor of metalloproteinase （TIMP-1） in cultured renal interstitial fibroblasts. Methods： Different BRT-containing sera were prepared by gastric gavages to rats with the high-dose （7 g/kg）, mid-dose （3.5 g/kg）, and low-dose （1.75 g/kg） BRT respectively. The expression of extracellular matrix in NRK-49F cells was induced by treatment with human transforming growth factor-β1 （recombined human TGF-β 1）, and BRT-containing serum. Western blotting and Northern blotting were used to measure type I and III procollagen, MMP-9, and TIMP-1. Results： The high dose BRT-containing serum could decrease the type Ⅰ and Ⅲ procollagen gene expression which boosted by TGF- 13 1, at the same time cut down TIMP-1 protein and gene expression which increased by TGF- β1 （P〈0.05）. Treatment of cells with recombined human TGF-β 1 had no significant effect on MMP-9 expression and BRT- containing serum also had no effect on MMP-9 expression. Conclusions： High dose BRT has anti-fibrosis effects in NRK-49F cells, as indicated by its inhibition of type Ⅰ and Ⅲ procollagen and TIMP-1 expression.展开更多
目的检测盆腔器官脱垂（pelvic organ prolapse，POP）患者子宫旁韧带组织中基质代谢相关Ⅰ型胶原（collagen type Ⅰ，COL1）、弹性蛋白（elastin）和基质金属蛋白酶9（matrix metalloproteinase，MMP-9）以及氧化损伤相关8-羟基脱氧...目的检测盆腔器官脱垂（pelvic organ prolapse，POP）患者子宫旁韧带组织中基质代谢相关Ⅰ型胶原（collagen type Ⅰ，COL1）、弹性蛋白（elastin）和基质金属蛋白酶9（matrix metalloproteinase，MMP-9）以及氧化损伤相关8-羟基脱氧鸟苷酸（8-hydroxy-2’-deoxyguanosine urine，8-OHdG）含量的变化，检测人子宫旁韧带成纤维细胞在氧化应激作用下基质代谢相关以上各项指标的变化，为研究氧化应激在POP发生发展中的作用机制提供实验基础和理论依据。方法选择2012年10月至2014年10月在武汉大学人民医院因盆腔脏器脱垂Ⅱ-Ⅳ度（POPⅡ～POPⅣ）行子宫全切术的患者50例（POP组）和因其他良性妇科疾病行子宫切除术患者40例（对照组），采用免疫组化方法检测患者的宫旁韧带（子宫骶韧带、子宫主韧带）组织中COL1、elastin、MMP-9、8-OHdG的表达；过氧化氢（hydrogen peroxide，H2O2）处理人子宫旁韧带成纤维细胞，建立氧化应激细胞模型，Western blot检测该模型细胞中COL1、elastin和MMP-9蛋白表达。结果免疫组化结果显示，与对照组相比，POP患者宫旁韧带组织中COL1、elastin表达均降低，MMP-9和8-OHdG表达升高；Western blot与免疫组化具有相一致的结果。结论氧化应激可以引起宫旁韧带成纤维细胞细胞外基质（extracellular matrix，ECM）成分改变，可能参与POP的发生发展。展开更多
基金Supported by the National Science Foundation of China(No.30130220 and No.30873345)National Natural Science Found for Innovative Research Groups Science Foundation of China(No.30121005)
文摘Objective： To investigate the effects of Biejia Ruangan Tablet （复方鳖甲软肝片, BRT）- containing serum on the expression of matrix metalloproteinase （MMP-9） and tissue inhibitor of metalloproteinase （TIMP-1） in cultured renal interstitial fibroblasts. Methods： Different BRT-containing sera were prepared by gastric gavages to rats with the high-dose （7 g/kg）, mid-dose （3.5 g/kg）, and low-dose （1.75 g/kg） BRT respectively. The expression of extracellular matrix in NRK-49F cells was induced by treatment with human transforming growth factor-β1 （recombined human TGF-β 1）, and BRT-containing serum. Western blotting and Northern blotting were used to measure type I and III procollagen, MMP-9, and TIMP-1. Results： The high dose BRT-containing serum could decrease the type Ⅰ and Ⅲ procollagen gene expression which boosted by TGF- 13 1, at the same time cut down TIMP-1 protein and gene expression which increased by TGF- β1 （P〈0.05）. Treatment of cells with recombined human TGF-β 1 had no significant effect on MMP-9 expression and BRT- containing serum also had no effect on MMP-9 expression. Conclusions： High dose BRT has anti-fibrosis effects in NRK-49F cells, as indicated by its inhibition of type Ⅰ and Ⅲ procollagen and TIMP-1 expression.
