Enhanced filopodium formation and stem-like phenotypes in a novel metastatic head and neck cancer cell model

Chen,Yu-Syuan; Huang,Wei-Li; Chang,Shu-Hao; Chang,Kuo-Wei; Kao,Shou-Yen; Lo,Jeng-Fan; Su,Pei-Fen

doi:10.3892/or.2013.2772

Enhanced filopodium formation and stem-like phenotypes in a novel metastatic head and neck cancer cell model

Authors:
- Yu-Syuan Chen
- Wei-Li Huang
- Shu-Hao Chang
- Kuo-Wei Chang
- Shou-Yen Kao
- Jeng-Fan Lo
- Pei-Fen Su
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Affiliations: Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan, R.O.C., Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan, R.O.C., Department of Medical Research and Education, Oral Maxillofacial Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.
Published online on: October 1, 2013 https://doi.org/10.3892/or.2013.2772
Pages: 2829-2837

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Abstract

Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer in the world, and metastasis is the major cause of cancer-related mortality. Prevention or elimination of metastasis may improve the survival of cancer patients; however, the availability of systemic HNSCC cell model with which to investigate the mechanisms of metastasis is limited. In the present study, we established a set of metastatic cell lines from HNSCC cells. In combination with their low-tumorigenic and high-tumorigenic ancestor cell lines, a cell model containing cell lines with varying malignant characteristics was established. Transcriptome analysis revealed distinct signatures among the metastatic cell lines, in comparison to the ancestor cell lines. Signaling of GTPase RhoA and mammalian embryonic stem cell pluripotency were identified in the metastatic cells. Moreover, we examined the expression of genes related to epithelial-mesenchymal transition (EMT) (Snail, Slug, Twist, vimentin and fibronectin) and stemness (Oct4, Nanog and Bmi1). The capabilities of the cells for migration, invasion, spheroid formation and pulmonary colonization in nude mice were determined. Together, we demonstrated gain of Slug expression, filopodium formation and stem-like properties in metastatic HNSCC cells, rendering this model a powerful tool for the development of diagnostic biomarkers and identification of therapeutic targets for HNSCC.

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