目的探讨米非司酮的抗孕激素及抗糖皮质激素作用。方法用放射配体结合实验测定米非司酮与猕猴子宫胞浆孕激素受体及大鼠肝胞浆糖皮质激素受体的结合力(BA)。结果米非司酮和孕酮与孕激素受体的BA分别为175.58%±19.20%、100%,50%抑...目的探讨米非司酮的抗孕激素及抗糖皮质激素作用。方法用放射配体结合实验测定米非司酮与猕猴子宫胞浆孕激素受体及大鼠肝胞浆糖皮质激素受体的结合力(BA)。结果米非司酮和孕酮与孕激素受体的BA分别为175.58%±19.20%、100%,50%抑制浓度(IC50)分别为(17.20±1.20)nm o l/L、(30.20±2.31)nm o l/L,两者相比,P均<0.01;米非司酮和地塞米松与糖皮质激素受体的BA分别为344.41%±57.41%、100%,IC50分别为(4.21±1.02)nm o l/L、(14.50±1.89)nm o l/L,两者相比,P均<0.01。结论米非司酮具有强的抗孕激素作用和一定的抗糖皮质激素作用。展开更多
The difference of sensitivity to indole- 3-acetic acid （ IAA ） combined with horseradish peroxidase （HRP） in K562 and BXPC- 3 cells was investigated. The cell proliferation was determined by MTF assay. The cell cy...The difference of sensitivity to indole- 3-acetic acid （ IAA ） combined with horseradish peroxidase （HRP） in K562 and BXPC- 3 cells was investigated. The cell proliferation was determined by MTF assay. The cell cycle and apoptosis of K562 and BXPC-3 cells were examined by a fluorescence flow cytometer （FCM） and terminal deoxynacleotidyl transferase-mediated dUTP nick-end labeling （TUNEL） respectively. The experimental results show that IAA and HRP could inhibit BXPC- 3 cell proliferation greatly compared with K562 cell during the first 48 h . The cell cycle was arrested predominantly at G2/ M phase in K562 and BXPC- 3 cells. The cell apoptosis of K562 and BXPC- 3 was induced by IAA/ HRP. There was a significant difference between the two cell lines since BXPC-3 cells were more sensitive than K562 cells by treatments with combination of IAA and HRP.展开更多
文摘目的探讨米非司酮的抗孕激素及抗糖皮质激素作用。方法用放射配体结合实验测定米非司酮与猕猴子宫胞浆孕激素受体及大鼠肝胞浆糖皮质激素受体的结合力(BA)。结果米非司酮和孕酮与孕激素受体的BA分别为175.58%±19.20%、100%,50%抑制浓度(IC50)分别为(17.20±1.20)nm o l/L、(30.20±2.31)nm o l/L,两者相比,P均<0.01;米非司酮和地塞米松与糖皮质激素受体的BA分别为344.41%±57.41%、100%,IC50分别为(4.21±1.02)nm o l/L、(14.50±1.89)nm o l/L,两者相比,P均<0.01。结论米非司酮具有强的抗孕激素作用和一定的抗糖皮质激素作用。
基金Funded by the National Natural Science Foundation of China(No.30170011) ,the Construction Fund for"211"Project of theMinistry of Education of China and the Natural Science Foundationof Hubei Province (No.2006ABA197)
文摘The difference of sensitivity to indole- 3-acetic acid （ IAA ） combined with horseradish peroxidase （HRP） in K562 and BXPC- 3 cells was investigated. The cell proliferation was determined by MTF assay. The cell cycle and apoptosis of K562 and BXPC-3 cells were examined by a fluorescence flow cytometer （FCM） and terminal deoxynacleotidyl transferase-mediated dUTP nick-end labeling （TUNEL） respectively. The experimental results show that IAA and HRP could inhibit BXPC- 3 cell proliferation greatly compared with K562 cell during the first 48 h . The cell cycle was arrested predominantly at G2/ M phase in K562 and BXPC- 3 cells. The cell apoptosis of K562 and BXPC- 3 was induced by IAA/ HRP. There was a significant difference between the two cell lines since BXPC-3 cells were more sensitive than K562 cells by treatments with combination of IAA and HRP.
