Transforming growth factor beta 1 dysregulation in a human oral carcinoma tumour progression model.

Published

Journal Article

A human oral tumour progression model was established that consists of normal epithelial cells and three cell lines representing stages from dysplastic to metastatic cells. To investigate the impact of exogenous transforming growth factor-beta 1 on this model system, we analysed the responsiveness of those cells to transforming growth factor-beta 1 and explored the potential mechanism underlying the transforming growth factor-beta 1 activity. We found that the growth of all cell types, regardless of their stage of tumour progression, is inhibited by transforming growth factor-beta 1, although to different degrees. Transforming growth factor-beta 1 induced the expression of cyclin-dependent kinase inhibitors p15(INK4B), p21WAF1/(CIP1) and p27(KIP1). In contrast, transforming growth factor-beta 1 was found to stimulate the invasive potential of one cell type that represents the most advanced stage of tumour phenotype, suggesting that the impact of transforming growth factor-beta 1 on functional features of tumour cells other than cellular proliferation may play a significant role in the process of oral tumour progression.

Full Text

Duke Authors

Cited Authors

  • Hsu, S; Borke, JL; Lewis, JB; Singh, B; Aiken, AC; Huynh, CT; Schuster, GS; Caughman, GB; Dickinson, DP; Smith, AK; Osaki, T; Wang, XF

Published Date

  • June 2002

Published In

Volume / Issue

  • 35 / 3

Start / End Page

  • 183 - 192

PubMed ID

  • 12027954

Pubmed Central ID

  • 12027954

International Standard Serial Number (ISSN)

  • 0960-7722

Digital Object Identifier (DOI)

  • 10.1046/j.1365-2184.2002.00237.x

Language

  • eng

Conference Location

  • England