目的:本研究旨在深入探究增殖相关蛋白2G4(proliferation-associated protein 2G4,PA2G4)通过PI3K/AKT/p53信号通路对人胆囊癌细胞GBC-SD增殖、迁移能力及凋亡过程的影响机制。方法:利用慢病毒转染技术构建PA2G4表达下调的胆囊癌细胞系...目的:本研究旨在深入探究增殖相关蛋白2G4(proliferation-associated protein 2G4,PA2G4)通过PI3K/AKT/p53信号通路对人胆囊癌细胞GBC-SD增殖、迁移能力及凋亡过程的影响机制。方法:利用慢病毒转染技术构建PA2G4表达下调的胆囊癌细胞系。采用RT-qPCR、Western blot对转染效率进行验证。运用CCK-8法、集落形成实验评估PA2G4对于GBC-SD细胞的增殖活性。用Transwell实验、划痕愈合实验评估PA2G4对于GBC-SD细胞的迁移能力影响。通过Western blot技术检测PA2G4对PI3K/AKT/p53及其相关磷酸化蛋白的表达水平,并检测凋亡相关蛋白Caspase-3、Bcl-2及Bax的表达水平。结果:GBC-SD细胞经PA2G4敲低后,其PA2G4的mRNA及蛋白表达水平均显著下降。敲低PA2G4显著抑制了GBC-SD细胞的增殖活性和迁移能力,同时促进了细胞凋亡。此外,PA2G4敲低还伴随p-PI3K、pAKT表达水平的下调,以及p-p53表达水平的上调。结论:本研究表明,PA2G4通过下调PI3K/AKT/p53抑制胆囊癌细胞的增殖与迁移,并诱导其凋亡。展开更多
To detect more attacks aiming at key security data in program behavior-based anomaly detection,the data flow properties were formulated as unary and binary relations on system call arguments.A new method named two-phr...To detect more attacks aiming at key security data in program behavior-based anomaly detection,the data flow properties were formulated as unary and binary relations on system call arguments.A new method named two-phrase analysis(2PA)is designed to analyze the efficient relation dependency,and its description as well as advantages are discussed.During the phase of static analysis,a dependency graph was constructed according to the program's data dependency graph,which was used in the phase of dynamic learning to learn specified binary relations.The constructed dependency graph only stores the information of related arguments and events,thus improves the efficiency of the learning algorithm and reduces the size of learned relation dependencies.Performance evaluations show that the new method is more efficient than existing methods.展开更多
文摘目的:本研究旨在深入探究增殖相关蛋白2G4(proliferation-associated protein 2G4,PA2G4)通过PI3K/AKT/p53信号通路对人胆囊癌细胞GBC-SD增殖、迁移能力及凋亡过程的影响机制。方法:利用慢病毒转染技术构建PA2G4表达下调的胆囊癌细胞系。采用RT-qPCR、Western blot对转染效率进行验证。运用CCK-8法、集落形成实验评估PA2G4对于GBC-SD细胞的增殖活性。用Transwell实验、划痕愈合实验评估PA2G4对于GBC-SD细胞的迁移能力影响。通过Western blot技术检测PA2G4对PI3K/AKT/p53及其相关磷酸化蛋白的表达水平,并检测凋亡相关蛋白Caspase-3、Bcl-2及Bax的表达水平。结果:GBC-SD细胞经PA2G4敲低后,其PA2G4的mRNA及蛋白表达水平均显著下降。敲低PA2G4显著抑制了GBC-SD细胞的增殖活性和迁移能力,同时促进了细胞凋亡。此外,PA2G4敲低还伴随p-PI3K、pAKT表达水平的下调,以及p-p53表达水平的上调。结论:本研究表明,PA2G4通过下调PI3K/AKT/p53抑制胆囊癌细胞的增殖与迁移,并诱导其凋亡。
文摘To detect more attacks aiming at key security data in program behavior-based anomaly detection,the data flow properties were formulated as unary and binary relations on system call arguments.A new method named two-phrase analysis(2PA)is designed to analyze the efficient relation dependency,and its description as well as advantages are discussed.During the phase of static analysis,a dependency graph was constructed according to the program's data dependency graph,which was used in the phase of dynamic learning to learn specified binary relations.The constructed dependency graph only stores the information of related arguments and events,thus improves the efficiency of the learning algorithm and reduces the size of learned relation dependencies.Performance evaluations show that the new method is more efficient than existing methods.
