Effects of epidermal growth factor on the invasion activity of the oral cancer cell lines HSC3 and SAS

Ohnishi, Yuichi; Lieger, Olivier; Attygalla, Manjula; Iizuka, Tateyuki; Kakudo, Kenji (2008). Effects of epidermal growth factor on the invasion activity of the oral cancer cell lines HSC3 and SAS. Oral oncology, 44(12), pp. 1155-9. Amsterdam: Elsevier 10.1016/j.oraloncology.2008.02.015

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Epidermal growth factor (EGF) is excreted in a high concentration in human saliva and modulates the growth and differentiation of various cancer cells. To elucidate the molecular mechanisms by which EGF affects oral cancer growth and invasion, we analyzed the Matrigel invasion activity of the cultured oral cancer cell line. Cells grown under the influence of EGF were subjected to Matrigel invasion assays and cells grown in the absence of EGF were used as controls. Gelatin-zymography and Northern blot analyses quantified the invasiveness and tumorigenicity. Chloramphenicol acetyltransferase assay (CAT assay) determined the EGF stimulation of matrix metalloproteinase (MMP) expression. EGF increased the number of cells penetrating a Matrigel membrane. Gelatin-zymography and Northern blot analysis revealed that MMP9 and Ets1 expressions correlated with EGF but MMP2 was not changed. a transient transfection assay revealed that EGF increased the promoter activities of the MMP9 genes in HSC3 and SAS cells. These results suggest that EGF increases the invasion activity of oral cancer cells partly by increasing MMP9.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Craniomaxillofacial Surgery

UniBE Contributor:

Lieger, Olivier and Iizuka, Tateyuki

ISSN:

1368-8375

ISBN:

18485796

Publisher:

Elsevier

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:05

Last Modified:

04 May 2014 23:20

Publisher DOI:

10.1016/j.oraloncology.2008.02.015

PubMed ID:

18485796

Web of Science ID:

000261852300010

URI:

https://boris.unibe.ch/id/eprint/28148 (FactScience: 117589)

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