Characterization of newly established oral cancer cell lines derived from six squamous cell carcinoma and two mucoepidermoid carcinoma cells
Experimental & Molecular Medicine
; : 379-390, 2005.
Article
de En
| WPRIM
| ID: wpr-207082
Bibliothèque responsable:
WPRO
ABSTRACT
Since genetic abnormalities of human cancer are greatly geographically dependent, cultural and environmental backgrounds are thought to be closely related to the carcinogenic process. In the present study, eight human cell lines were established by culture from untreated carcinomas of the oral cancer, of which five were from primary oral squamous cell carcinomas (OSC), one from a mucoepidermoid carcinoma (MEC) and one each originating from metastatic OSC and MEC. All the studied tumor lines grew as monolayers, and showed: i) an epithelial origin by the presence of cytokeratin, and ii) tumorigenic potential in nude mice. Western blot analysis revealed i) over expression of EGFR in six of the cell lines ii) decreased expression of E- cadherin in six cell lines compared to normal human oral mucosa. A mutational analysis showed: point mutations of p53 at exon 7, with transversion, and at exon 8, with transition. These well-characterized human YD cell lines should serve as useful tools in the study of the molecular pathogenesis and biological characteristics of head and neck cancer cells, and in the future testing of new therapeutic reagents for oral cancer.
Mots clés
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Papillomaviridae
/
Tumeurs de la bouche
/
Séquence nucléotidique
/
Carcinome épidermoïde
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Marqueurs biologiques tumoraux
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Protéine p53 suppresseur de tumeur
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Carcinome mucoépidermoïde
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Tests d'activité antitumorale sur modèle de xénogreffe
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Lignée cellulaire tumorale
/
Cellules épithéliales
Type d'étude:
Prognostic_studies
Limites du sujet:
Animals
/
Female
/
Humans
/
Male
langue:
En
Texte intégral:
Experimental & Molecular Medicine
Année:
2005
Type:
Article