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Construction of a siRNA vector targeting human MTA1 gene and the gene-silencing effect / 南方医科大学学报
Journal of Southern Medical University ; (12): 366-369, 2008.
Artigo em Chinês | WPRIM | ID: wpr-293375
ABSTRACT
<p><b>OBJECTIVE</b>To construct an expression vector of siRNA targeting human MTA1 gene and observe its gene-silencing effect in esophageal carcinoma cells.</p><p><b>METHODS</b>The siRNA sequences targeting MTA1 gene were designed and synthesized with two complementary oligonucleotide strands. The oligonucleotide strands were annealed and recombined into pRNAT-U6.2 vector, which was identified by sequencing following transformation and amplification. The siRNA expression vector pRNAT-U6.2-MTA1 was transfected into human esophageal carcinoma EC9706 cells via liposome. RT-PCR and Western blotting were used to detect expression levels of MTA1 mRNA and protein in the transfected EC9706 cells, respectively.</p><p><b>RESULTS</b>The double-stranded oligonucleotide fragments of the siRNA targeting MTA1 gene were cloned into pRNAT-U6.2 vector, which was validated by sequence analysis. RT-PCR and Western blotting indicated that MTA1 mRNA and protein expressions were significantly decreased in the transfected cells, especially in those transfected with the siRNA targeting the sequence of GACCCTGCTGGCAGATAAA (481-499), which induced almost complete silencing of MTA1 protein expression.</p><p><b>CONCLUSION</b>The siRNA expression vector pRNAT-U6.2-MTA1 for silencing MTA1 gene expression in the esophageal carcinoma cells has been successfully constructed, which may facilitate further study for decreasing the invasive and metastatic potentials of malignant tumors by MTA1 gene silencing.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Proteínas Repressoras / RNA Mensageiro / Neoplasias Esofágicas / Dados de Sequência Molecular / Sequência de Bases / Transfecção / Western Blotting / Clonagem Molecular / Reação em Cadeia da Polimerase Via Transcriptase Reversa Tipo de estudo: Estudo prognóstico Limite: Humanos Idioma: Chinês Revista: Journal of Southern Medical University Ano de publicação: 2008 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Proteínas Repressoras / RNA Mensageiro / Neoplasias Esofágicas / Dados de Sequência Molecular / Sequência de Bases / Transfecção / Western Blotting / Clonagem Molecular / Reação em Cadeia da Polimerase Via Transcriptase Reversa Tipo de estudo: Estudo prognóstico Limite: Humanos Idioma: Chinês Revista: Journal of Southern Medical University Ano de publicação: 2008 Tipo de documento: Artigo