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- W750915184 abstract "目的观察外源性CBP基因稳定转染对人肺腺癌SPC—A1细胞体外生长的影响。方法构建CBP真核表达质粒pcDNA3.0-CBP,应用pcDNA3.0-CBP和空载体质粒pcDNA3.0(-),脂质体转染法转染体外培养的人肺腺癌细胞株SPC—A1,G418(800mg/L)筛选出抗性克隆。Westem blot检测转染前后CBP蛋白水平变化,噻唑蓝(MTT)比色法分析细胞生长抑制作用,Transwell体外侵袭实验和Wound—healing实验对细胞进行侵袭和迁移能力研究。结果转染CBP基因的细胞株有目的基因整合和相应蛋白高表达。MTT检测pcDNA3.0-CBP转染组活细胞吸光度(0.2787±0.0786)低于未转染组(0.5089±0.1301)和pcDNA3.0(-)空载体转染组(0.4804±0.1547)。pcDNA3.0-CBP转染组与两对照组吸光度的差异有统计学意义(P〈0.01)。细胞侵袭实验表明pcDNA3.0-CBP转染组穿透滤膜数(3.52±0.77)明显少于未转染组(8.17±0.86)和空载体转染组(8.22±1.30),转染组与两对照组侵袭力的差异有统计学意义(P〈0.01)。细胞迁移实验转染组细胞迁移数(71.30±7.68)明显少于未转染组(119.40±8.38)和空载体转染组(111.41±12.56),转染组与两对照组迁移力的差异有统计学意义(P〈0.01)。结论外源性CBP基因稳定转染可抑制人肺腺癌SPC—A1细胞的恶性表型,可能通过对Src家族激酶(SFKs)的负反馈调节抑制肿瘤细胞的增殖、侵袭。" @default.
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- W750915184 date "2009-01-01" @default.
- W750915184 modified "2023-09-23" @default.
- W750915184 title "pcDNA3.0-CBP真核表达质粒的构建及对肺腺癌SPC—A1细胞的影响" @default.
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