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Effect of silencing epidermal growth factor receptor expression by RNA interference on the growth of nasopharyngeal carcinoma cell 5-8F / 南方医科大学学报
Journal of Southern Medical University ; (12): 71-74, 2006.
Artigo em Chinês | WPRIM | ID: wpr-234193
ABSTRACT
<p><b>OBJECTIVE</b>To observe the growth and cell cycle changes of nasopharyngeal carcinoma cell 5-8F in response to silencing of the expression of epidermal growth factor receptor (EGFR) with RNA interference (RNAi), and explore the possible relationships between EGFR and the occurrence, differentiation and progression of nasopharyngeal carcinoma.</p><p><b>METHOD</b>Three EGFR-specific small interfering RNAs (siRNAs) were obtained by in vitro transcription and synthesis and were transiently transfected into 5-8F cells. The EGFR expression levels in the transfected cells were detected by reverse transcription (RT)-PCR and Western blotting, respectively. After EGFR expression silencing, the growth and cell cycle changes of the cells were observed.</p><p><b>RESULTS</b>EGFR mRNA contents and protein levels decreased by approximately 67.5% and 77%, respectively, after RNAi of 5-8F cells, and the cell proliferation decreased and cell cycle arrest at G1 phase occurred in association with EGFR silencing.</p><p><b>CONCLUSION</b>EGFR silencing by RNAi can reduce the proliferation of nasopharyngeal carcinoma cells and induce cell cycle arrest at G1 phase, which sheds light on the possible use of RNAi for further investigation of the pathogenesis and gene therapy of nasopharyngeal carcinoma.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Transfecção / Terapia Genética / Neoplasias Nasofaríngeas / RNA Interferente Pequeno / Interferência de RNA / Linhagem Celular Tumoral / Proliferação de Células / Receptores ErbB / Genética Limite: Humanos Idioma: Chinês Revista: Journal of Southern Medical University Ano de publicação: 2006 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Transfecção / Terapia Genética / Neoplasias Nasofaríngeas / RNA Interferente Pequeno / Interferência de RNA / Linhagem Celular Tumoral / Proliferação de Células / Receptores ErbB / Genética Limite: Humanos Idioma: Chinês Revista: Journal of Southern Medical University Ano de publicação: 2006 Tipo de documento: Artigo