目的:观察细胞角质素19(CK19)及消减基因P02在肝细胞癌,肝硬化组织及卵圆细胞中的表达情况.方法:采用免疫组化SP法观察8例正常肝组织,27例肝硬化组织和43例肝细胞癌组织中CK19的表达.采用DIG-probe synthesis kit,聚合酶链反应方法制备...目的:观察细胞角质素19(CK19)及消减基因P02在肝细胞癌,肝硬化组织及卵圆细胞中的表达情况.方法:采用免疫组化SP法观察8例正常肝组织,27例肝硬化组织和43例肝细胞癌组织中CK19的表达.采用DIG-probe synthesis kit,聚合酶链反应方法制备P02探针,通过原位杂交方法检测P02在肝细胞癌,肝硬化组织及卵圆细胞中的表达.结果:CK19在肝硬化组与正常肝组织之间表达率无明显差异,但在肝细胞癌组与肝硬化组之间差异有显著性(69.77% vs 25.93%,P<0.01).肝硬化组织与肝细胞癌组织中CK19标记的卵圆细胞数量有显著性差异(5.74±1.05 vs 10.51±1.78,P<0.01).P02在肝硬化和肝细胞癌中的阳性表达率分别为26.7%和80%,二者之间表达有显著性差异(P<0.01).结论:CK19可能参与了肝硬化到肝细胞癌的癌变过程.卵圆细胞与肝脏损伤后再生及癌变有关,可能是P02通过促进卵圆细胞的增殖来介导肝细胞癌的发生.展开更多
An indigenous and industrially important manganese peroxidase （MnP） isolated from solid state culture of Pleurotus ostreatus IBL-02 was 2.1-fold purified and immobilized using sol-gel matrix of trimethoxysilane and ...An indigenous and industrially important manganese peroxidase （MnP） isolated from solid state culture of Pleurotus ostreatus IBL-02 was 2.1-fold purified and immobilized using sol-gel matrix of trimethoxysilane and proplytetramethoxysilane. Lower KM, higher Vmax, hyper-activation, enhanced acidic and thermal stability up to 70 ℃, were the improved]enhanced catalytic features of the presently sol-gel immobilized MnP. A maximum of 100% decolorization was achieved within a short time period for the different real dyes containing textile industry effluents i.e. Nishat textile （NIT）, K＆N textile （KIT）, Sitara textile （SIT）, and Crescent textile （CRT）.展开更多
文摘目的:观察细胞角质素19(CK19)及消减基因P02在肝细胞癌,肝硬化组织及卵圆细胞中的表达情况.方法:采用免疫组化SP法观察8例正常肝组织,27例肝硬化组织和43例肝细胞癌组织中CK19的表达.采用DIG-probe synthesis kit,聚合酶链反应方法制备P02探针,通过原位杂交方法检测P02在肝细胞癌,肝硬化组织及卵圆细胞中的表达.结果:CK19在肝硬化组与正常肝组织之间表达率无明显差异,但在肝细胞癌组与肝硬化组之间差异有显著性(69.77% vs 25.93%,P<0.01).肝硬化组织与肝细胞癌组织中CK19标记的卵圆细胞数量有显著性差异(5.74±1.05 vs 10.51±1.78,P<0.01).P02在肝硬化和肝细胞癌中的阳性表达率分别为26.7%和80%,二者之间表达有显著性差异(P<0.01).结论:CK19可能参与了肝硬化到肝细胞癌的癌变过程.卵圆细胞与肝脏损伤后再生及癌变有关,可能是P02通过促进卵圆细胞的增殖来介导肝细胞癌的发生.
基金a part of a research project"the development of immobilized ligninolytic enzymes for industrial applications"financial support,Higher Education Commission, Pakistan
文摘An indigenous and industrially important manganese peroxidase （MnP） isolated from solid state culture of Pleurotus ostreatus IBL-02 was 2.1-fold purified and immobilized using sol-gel matrix of trimethoxysilane and proplytetramethoxysilane. Lower KM, higher Vmax, hyper-activation, enhanced acidic and thermal stability up to 70 ℃, were the improved]enhanced catalytic features of the presently sol-gel immobilized MnP. A maximum of 100% decolorization was achieved within a short time period for the different real dyes containing textile industry effluents i.e. Nishat textile （NIT）, K＆N textile （KIT）, Sitara textile （SIT）, and Crescent textile （CRT）.
