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机构地区:[1]首都医科大学附属北京安贞医院妇产科,100029 [2]桂林医学院微生物和免疫学教研室
出 处:《中国医药》2010年第2期97-99,共3页China Medicine
基 金:国家自然科学基金项目(30973194)
摘 要:目的观察Her.2基因表达下调后,卵巢癌细胞系SKOV3.ip1细胞对紫杉醇敏感性的改变。方法1.细胞培养:将原始SKOV3.ip1和低表达Her-2的SKOV3.ip1细胞常规培养于RPM11640培养基,置于37℃,5%CO2培养箱中培养;2-蛋白印迹(WesternBlot)方法检测Her12蛋白表达:WesternBlot方法分别检测Her-2基因在原始SKOV3.ip1和低表达Her-2的SKOV3.ip1细胞的表达,并比较其表达差异;3.3·(4,5-二甲基噻唑-2)-2,5-二苯基四氮唑溴盐(MTT)试验:将不同浓度(0,6,12,24,48,96μg/m1)紫杉醇注射液分别作用于SKOV3.ip1细胞和低表达Her-2的SKOV3.ip1细胞,MTT方法检测细胞抑制率,并比较高、低表达Her-2基因的SKOV3.ip1细胞抑制率的差异。结果在紫杉醇注射液浓度分别为6,12,24,48μg/ml时,低表达Her.2的SKOV3.ip1细胞抑制率分别是(45.50±0.95)%,(65.37±0.56)%,(76.83±0.27)%,(81.83±0.69)%;高表达Her-2的SKOV3.ip1细胞抑制率分别是(36,13±1.74)%,(56.43±2.19)%,(67.57±1.96)%,(74.30±1.10)%。两者比较差异有统计学意义(P〈0.01);而当紫杉醇注射液浓度达到96μg/ml时,两种细胞的抑制率趋于一致,接近100%。结论Her-2基因表达下调后,SKOV3.ip1细胞对紫杉醇注射液敏感性提高。Objective To observe the sensitization changes of SKOV3. ipl cells exposed to taxel when the expression of Her-2 in SKOV3. ipl cells was depressed. Meshods 1. Cell culture: SKOV3. ipl cells and lower Her-2 expressed SKOV3. ipl expressed SKOV3. ipl cells was detected by Western blot. 3. MTr Test: SKOV3. ipl cells were exposed to different dose taxel (6,12, 24,48,96 p^g/ml), The MqT method was used to detect the inhibi- tion rate of SKOV3. ipl ceils exposed to taxel and the inhibition rate of SKOV3. ipl cells that express different Her-2 level was compared. Results When exposed to(6,12, 24,48 μg/rnl)taxel dose, the inhibition rate of lower Her-2 expressed SKOV3. ipl cells were (45.50 ± 0.95)% , (65. 37±0. 56)% , (76. 83 ± 0. 27)% and (81. 83 ± 0.69)%. While the inhibition rate of SKOV3. ipl cells were(36. 13 ±1.74)%, (56.43 ±2.19)% , (67.57± 1.96) % and(74.30 ±1. 10)%. The difference were obviously (P 〈 0.01 ). Conclusion The sensitization of SKOV3. ipl cells to taxel was increased when the expression of Her-2 in the cells was depressed.
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