ArticleHua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology2016
[Construction of epithelial membrane protein 1 eukaryotic expression vector and its influence on migration and invasion of human oral tongue squamous carcinoma cells].
Article in Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology, 2016. 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
objectiveThis study aimed to construct a eukaryotic expression vector pEGFP-N1-EMP1 of epithelial mem-brane protein 1 (EMP1) and investigate its influence on migration and invasion of human oral tongue squamous carcinoma cells.
methodsThe human EMP1 gene was amplified by reverse transcription polymerase chain reaction and then ligated into the pEGFP-N1 vector by double restriction endonuclease digestion to construct pEGFP-N1-EMP1 recombinant plasmid. After sequencing identification, pEGFP-N1-EMP1 recombinant plasmid and pEGFP-N1 plasmid were transfected into human oral tongue squamous carcinoma Tb3.1 cell line. The expression of green fluorescent protein in cells was observed after transfection using an inverted fluorescence microscope. The overexpression of EMP1 mRNA was identified at 24, 48, and 72 h after transfection by real-time fluorescence quantitative polymerase chain reaction. The effect of EMP1 overexpression on migration and invasion of Tb3.1 cells was detected by Transwell assay.
resultsThe full-length EMP1 gene sequence was successfully obtained. Sequence analysis showed that the EMP1 gene was inserted into the pEGFP-N1 vector correctly. Green fluorescence was observed in the transfected cells under fluorescence microscopy. The results of real-time fluorescence quantitative polymerase chain reaction indicated that the expression of EMP1 at 24 h after pEGFP-N1-EMP1 transfection was significantly higher than the other groups. Transwell assays indicated that overexpression of the EMP1 gene could significantly inhibit the migration and invasion ability of Tb3.1 cells.
conclusionsThe eukaryotic expression vector of EMP1 was successfully constructed, and EMP1 overexpression was confirmed to inhibit the migration and inva-sion of oral tongue squamous carcinoma cells in vitro. This study laid a foundation for further investigation on the influence of the EMP1 gene on the metastasis of oral tongue squamous carcinoma and its molecular mechanism. .
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