간세포성장인자가 하인두 편평세포암 세포주의 증식, 분산과 이동에 미치는 영향
Effect of HGF in Proliferation, Dispersion and Migration ofHypopharyngeal Squamous Cell Carcinoma
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Abstract
Background and Objectives:Hepatocyte growth factor (HGF) is known to stimulate motility, invasivenes, proliferation, and morphogenesis of endothelial cells. Recent reports revealed that this growth factor is also related to tumor invasion and metas-tasis. We examined the role of HGF/c-Met on the proliferation, dispersion and migration of FaDu cell, a hypopharyngeal squa-mous cell carcinoma cell line. Materials and Method:We performed RT-PCR and Western blot in FaDu. Proliferation of the FaDu cels was assayed by counting the number of cells after treatment by HGF of diferent concentrations of 0, 10, 30 ng/mL. Dispersion of the cells was observed by measuring the separation and morphologic changes of cells after the colony of FaDu cells was formed in the media and then treated with HGF of 10 ng/mL or 30 ng/mL for 24 hours. Tumor cel migration was assesed by wound healing asay. Lastly, we examined the enhancement of HGF production in human fibroblast (MRC-5) by putative inducer secreted from FaDu cels. Results:popharyngeal cel line while that of HGF was not. Exogenous HGF significantly enhanced the growth of FaDu in a dose-dependent manner 30 ng/ml (p<0.05). HGF stimulated the dispersion and enhanced the migration of cancer cells in a dose-dependent manner (p<0.05). HGF produced by human stromal fibroblast (MRC-5) was increased by a certain inducer ori-ginated from FaDu cells (p<0.05). Conclusion:These results sugest that HGF may play an important role in the progresion of hypopharyngeal cancer through the enhancement of proliferation, dispersion and migration.
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