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Inflammatory factors promote oral squamous cell carcinoma cells metastasis, via nuclear factor kappa B signal pathway in vitro / 中华口腔医学杂志
Chinese Journal of Stomatology ; (12): 146-151, 2010.
Artículo en Chino | WPRIM | ID: wpr-245239
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the roles of inflammatory factors and nuclear factor kappa B (NF-kappaB) signal pathway in metastasis of oral squamous cell carcinoma.</p><p><b>METHODS</b>The oral squamous cell carcinoma cell lines with highly metastasis potential (Tb) and lower metastasis potential (Tca8113) were used in this study. The levels of NF-kappaB activity in oral squamous cell carcinoma cell lines were determined by Western blotting and luciferase reporter assay. pBalphabe-IkappaBalpha-SR expression vector or NF-kappaB inhibitor pyrolidinedithiocarbamate (PDTC) was used to inhibit NF-kappaB, and cell migration was examined by transwell assay. The secretion of tumor necrosis factor-alpha (TNF-alpha), IL-1alpha, IL-6, IL-8 and GM-CSF proinflammatory cytokines was determined by ELISA when Tb cells were transfected with pBalphabe-SR-IkappaBalpha or treated with PDTC.</p><p><b>RESULTS</b>Western blotting showed that the levels of phosphorIkappaBalpha and phosphor-p65 were highly expressed in Tb cells. Tb cells had high level of constitutive NF-kappaB activity and were more sensitive to TNF-alpha. The migration of highly metastatic Tb cells, either transfected with dominant-negative mutant inhibitor pBalphabe-SR-IkappaBalpha or treated with PDTC, was suppressed when determined by transwell assay. The secretion of proinflammatory cytokines, including TNF-alpha, IL-1alpha, IL-6, IL-8 and granulocyte-macrophage colony stimulating factor (GM-CSF), was inhibited by pBalphabe-SR-IkappaBalpha transfection or PDTC treatment.</p><p><b>CONCLUSIONS</b>The inflammatory factors such as TNF-alpha could promote oral squamous cell carcinoma cell metastasis via NF-kappaB signal pathway.</p>
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Patología / Farmacología / Fosforilación / Tiocarbamatos / Prolina / Neoplasias de la Lengua / Carcinoma de Células Escamosas / Transducción de Señal / Movimiento Celular / Citocinas Límite: Humanos Idioma: Chino Revista: Chinese Journal of Stomatology Año: 2010 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Patología / Farmacología / Fosforilación / Tiocarbamatos / Prolina / Neoplasias de la Lengua / Carcinoma de Células Escamosas / Transducción de Señal / Movimiento Celular / Citocinas Límite: Humanos Idioma: Chino Revista: Chinese Journal of Stomatology Año: 2010 Tipo del documento: Artículo