ArticleZhongguo fei ai za zhi = Chinese journal of lung cancer2014
[Construction and influence of human nuclear factor-κB p65 shRNA lentiviral vector on malignant biological behavior of lung cancer cells].
Article in Zhongguo fei ai za zhi = Chinese journal of lung cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND AND
objectiveNuclear factor-κB is an important transcription factor and is closely associated with a variety of malignant tumors. The biological behavior of lung tumor cells can be reversed by inhibiting the expression of NF-κBp65 directly or indirectly. Nuclear factor-κBp65 gene shRNA recombinant plasmids were constructed and then infected with A549 cells. New stable cell lines were selected, and the ability of migration and adhesion was identified.
methodsBoth scramble control sequence and interference sequence (shRNA) of human nuclear factor-κBp65 were designed and synthesized to build recombinant plasmids, with BamH I site at the 5' end and Xho I and EcoR I sites at the 3' end. A549 cells were infected, and stable transfection strains were selected by puromycin. Western blot and qRT-PCR methods were applied to assess the interference efficient of NF-κBp65 and the protein expression level of IκBα. Transwell and MTT assays were carried out to analyze the ability of migration and adhesion of A549 cells separately.
resultsRecombinant plasmids were successfully built, and A549/NF-κB p65 scramble and A549/NF-κB p65 shRNA stable transfection strains were also successfully screened. Both mRNA and protein expression levels of NF-κBp65 showed that A549/NF-κBp65 shRNA cells decreased compared with A549/NF-κB p65 scramble cells and A549 cells, whereas the protein level of IκBα significantly increased. Both migration and adhesion abilities were also reduced.
conclusionsIn this study, both mRNA and protein expression levels of NF-κBp65 were effectively suppressed by RNA interference technique. NF-κBp65 inhibition can significantly reduce the migration and adhesion ability of A549 cells.
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