目的研究糖尿病大鼠中MCP-1、TIMP-1等细胞因子的表达以及心肝宝对糖尿病大鼠肾脏MCP-1、TIMP-1表达的影响。方法选取雄性Wistar大鼠36只,行右肾切除术后两周,随机分成正常对照组(A组),糖尿病大鼠对照组(B组)和糖尿病大鼠治疗组(C组)。...目的研究糖尿病大鼠中MCP-1、TIMP-1等细胞因子的表达以及心肝宝对糖尿病大鼠肾脏MCP-1、TIMP-1表达的影响。方法选取雄性Wistar大鼠36只,行右肾切除术后两周,随机分成正常对照组(A组),糖尿病大鼠对照组(B组)和糖尿病大鼠治疗组(C组)。采用HE、PAS染色,行肾脏组织形态学分析,用Real time FQ-PCR检测MCP-1、TIMP-1等细胞因子的mRNA表达情况。结果糖尿病组大鼠肾脏MCP-1、TIMP-1的mRNA表达均明显升高。治疗组大鼠肾脏MCP-1、TIMP-1的mRNA表达均有不同程度下调。结论DN大鼠肾脏MCP-1、TIMP-1炎症相关的细胞因子表达水平显著升高DN大鼠肾脏肥大、系膜ECM沉积以及UAER增加均与肾脏MCP-1、TIMP-1细胞因子的高表达有关。提示炎症参与了DN肾脏病理改变和肾功能损害的发生和发展。心肝宝可下调肾脏MCP-1、TIMP-1等细胞因子mRNA的表达,从而减少ECM沉积、抑制肾脏肥大、降低尿蛋白,防止DN的发生发展。心肝宝可通过非特异性抗炎作用对DN产生保护作用。另外,心肝宝对DN脂代谢紊乱有显著调节作用。并且心肝宝对肾脏TIMP-1表达的抑制作用较强。展开更多
Objective To investigate the regulatory effect of multifactor on the matrix metalloproteinases-9 （MMP-9） and the tissue inhibitor of metalloproteinase-1 （TIMP-1） in endometrial stromal cells. Methods The endometri...Objective To investigate the regulatory effect of multifactor on the matrix metalloproteinases-9 （MMP-9） and the tissue inhibitor of metalloproteinase-1 （TIMP-1） in endometrial stromal cells. Methods The endometrial stromal cells separated from the proliferative endometrial tissues were incubated with medium alone, 17-β estradiol （E2,10^-8 mol/L）, medroxyprogesterone acetate （MPA, 10^-6 mol/L）, E2（10^-8 mol/L）＋MPA （10^-6 mol/L）, E2 （10^-8 mol/L）＋MPA （10^-6 mol/L）＋RU486 （10^-5 mol/L） or HB-EGF （10 ng/ml） for 48 h respectively. The expressions of MMP-9 and TIMP-1 were detected by in situ hybridization, immunocytochemistry, reverse transcriptase-polymerase chain reaction （RT-PCR） and Western blotting. Results Compared with control group [mRNA, 0. 729 ± 0. 090 （MMP-9） and 1.056± 0.154 （TIMP-1）; protein, 0.545 ±0.086 （MMP-9） and 0.745 ±0.154 （TIMP-1）], expressions of MMP-9 and TIMP-1 in E2 alone, progestin alone or E2 combined with progestin group were respectively：mRNA, 0.413 ± 0.069, 0.402 ± 0.073 and 0.407 ± 0.039; 0.487 ± 0.093, 0.503 ± 0.093 and 0.468 ± 0.075：protein, 0.294 ± 0.076, 0.331 ±0.064 and 0.265 ±0.049; 0.425 ±0.085, 0.397 ±0.065 and 0.435 ± 0.099. RU486 weakened the expression level of down-regulation, while HB-EGF elevated the level of MMP-9 and TIMP-1 after 48 h treatment （mRNA, 0.955 ± 0.068 and 1.396 ± 0.238; protein, 0. 780 ± 0.109 and 0.985 ± 0.165）. Conclusions 1） Both E2 and progestin can down-regulate the expressions of MMP-9 and TIMP-1 in endometrial stromal cells, but RU486 can inhibit the effect. 2） HB-EGF can elevate the level of MMP-9 and TIMP-1. 3） E2, progestin and HB-EGF have effect on the ratio of MM-P/TIMP-1.展开更多
文摘目的研究糖尿病大鼠中MCP-1、TIMP-1等细胞因子的表达以及心肝宝对糖尿病大鼠肾脏MCP-1、TIMP-1表达的影响。方法选取雄性Wistar大鼠36只,行右肾切除术后两周,随机分成正常对照组(A组),糖尿病大鼠对照组(B组)和糖尿病大鼠治疗组(C组)。采用HE、PAS染色,行肾脏组织形态学分析,用Real time FQ-PCR检测MCP-1、TIMP-1等细胞因子的mRNA表达情况。结果糖尿病组大鼠肾脏MCP-1、TIMP-1的mRNA表达均明显升高。治疗组大鼠肾脏MCP-1、TIMP-1的mRNA表达均有不同程度下调。结论DN大鼠肾脏MCP-1、TIMP-1炎症相关的细胞因子表达水平显著升高DN大鼠肾脏肥大、系膜ECM沉积以及UAER增加均与肾脏MCP-1、TIMP-1细胞因子的高表达有关。提示炎症参与了DN肾脏病理改变和肾功能损害的发生和发展。心肝宝可下调肾脏MCP-1、TIMP-1等细胞因子mRNA的表达,从而减少ECM沉积、抑制肾脏肥大、降低尿蛋白,防止DN的发生发展。心肝宝可通过非特异性抗炎作用对DN产生保护作用。另外,心肝宝对DN脂代谢紊乱有显著调节作用。并且心肝宝对肾脏TIMP-1表达的抑制作用较强。
文摘Objective To investigate the regulatory effect of multifactor on the matrix metalloproteinases-9 （MMP-9） and the tissue inhibitor of metalloproteinase-1 （TIMP-1） in endometrial stromal cells. Methods The endometrial stromal cells separated from the proliferative endometrial tissues were incubated with medium alone, 17-β estradiol （E2,10^-8 mol/L）, medroxyprogesterone acetate （MPA, 10^-6 mol/L）, E2（10^-8 mol/L）＋MPA （10^-6 mol/L）, E2 （10^-8 mol/L）＋MPA （10^-6 mol/L）＋RU486 （10^-5 mol/L） or HB-EGF （10 ng/ml） for 48 h respectively. The expressions of MMP-9 and TIMP-1 were detected by in situ hybridization, immunocytochemistry, reverse transcriptase-polymerase chain reaction （RT-PCR） and Western blotting. Results Compared with control group [mRNA, 0. 729 ± 0. 090 （MMP-9） and 1.056± 0.154 （TIMP-1）; protein, 0.545 ±0.086 （MMP-9） and 0.745 ±0.154 （TIMP-1）], expressions of MMP-9 and TIMP-1 in E2 alone, progestin alone or E2 combined with progestin group were respectively：mRNA, 0.413 ± 0.069, 0.402 ± 0.073 and 0.407 ± 0.039; 0.487 ± 0.093, 0.503 ± 0.093 and 0.468 ± 0.075：protein, 0.294 ± 0.076, 0.331 ±0.064 and 0.265 ±0.049; 0.425 ±0.085, 0.397 ±0.065 and 0.435 ± 0.099. RU486 weakened the expression level of down-regulation, while HB-EGF elevated the level of MMP-9 and TIMP-1 after 48 h treatment （mRNA, 0.955 ± 0.068 and 1.396 ± 0.238; protein, 0. 780 ± 0.109 and 0.985 ± 0.165）. Conclusions 1） Both E2 and progestin can down-regulate the expressions of MMP-9 and TIMP-1 in endometrial stromal cells, but RU486 can inhibit the effect. 2） HB-EGF can elevate the level of MMP-9 and TIMP-1. 3） E2, progestin and HB-EGF have effect on the ratio of MM-P/TIMP-1.
