Targeting fibroblast growth factor receptor 3 enhances radiosensitivity in human squamous cancer cells

K. Uzawa, T. Ishigami, K. Fushimi, T. Kawata, K. Shinozuka, A. Kasamatsu, Y. Sakamoto, K. Ogawara, M. Shiiba, H. Bukawa, H. Ito, H. Tanzawa

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Conventional therapies including radiation therapy cannot cure squamous cell carcinoma (SCC), and new treatments are clearly required. Our recent studies have shown that SCC cell lines exhibiting radioresistance show significant upregulation of the fibroblast growth factor receptor 3 (FGFR3) gene. We hypothesized that inhibiting FGFR3 would suppress tumor cell radioresistance and provide a new treatment approach for human SCCs. In the present study, we found that RNA interference-mediated FGFR3 depletion in HSC-2 cells, a radioresistant cell line, induced radiosensitivity and inhibited tumor growth. Use of an FGFR3 inhibitor (PD173074) obtained similar results with suppression of the autophosphorylation extracellular signal-regulated kinase pathway in HSC-2 cells and lung cancer cell lines. Moreover, the antitumor growth effect of the combination of PD173074 and radiation in vivo was also greater than that with either drug alone or radiation alone. Our results provided novel information on which to base further mechanistic study of radiosensitization by inhibiting FGFR3 in human SCC cells and for developing strategies to improve outcomes with concurrent radiotherapy.

Original languageEnglish
Pages (from-to)4447-4452
Number of pages6
JournalOncogene
Volume30
Issue number43
DOIs
Publication statusPublished - 2011 Oct 27
Externally publishedYes

Fingerprint

Receptor, Fibroblast Growth Factor, Type 3
Squamous Cell Neoplasms
Radiation Tolerance
Squamous Cell Carcinoma
Cell Line
Radiotherapy
Radiation
Extracellular Signal-Regulated MAP Kinases
Growth
RNA Interference
Lung Neoplasms
Neoplasms
Up-Regulation
Therapeutics
Pharmaceutical Preparations
Genes

Keywords

  • FGFR3
  • fibroblast growth factor receptor 3 gene
  • radiosensitivity
  • squamous cell carcinoma

ASJC Scopus subject areas

  • Molecular Biology
  • Cancer Research
  • Genetics

Cite this

Uzawa, K., Ishigami, T., Fushimi, K., Kawata, T., Shinozuka, K., Kasamatsu, A., ... Tanzawa, H. (2011). Targeting fibroblast growth factor receptor 3 enhances radiosensitivity in human squamous cancer cells. Oncogene, 30(43), 4447-4452. https://doi.org/10.1038/onc.2011.159

Targeting fibroblast growth factor receptor 3 enhances radiosensitivity in human squamous cancer cells. / Uzawa, K.; Ishigami, T.; Fushimi, K.; Kawata, T.; Shinozuka, K.; Kasamatsu, A.; Sakamoto, Y.; Ogawara, K.; Shiiba, M.; Bukawa, H.; Ito, H.; Tanzawa, H.

In: Oncogene, Vol. 30, No. 43, 27.10.2011, p. 4447-4452.

Research output: Contribution to journalArticle

Uzawa, K, Ishigami, T, Fushimi, K, Kawata, T, Shinozuka, K, Kasamatsu, A, Sakamoto, Y, Ogawara, K, Shiiba, M, Bukawa, H, Ito, H & Tanzawa, H 2011, 'Targeting fibroblast growth factor receptor 3 enhances radiosensitivity in human squamous cancer cells', Oncogene, vol. 30, no. 43, pp. 4447-4452. https://doi.org/10.1038/onc.2011.159
Uzawa K, Ishigami T, Fushimi K, Kawata T, Shinozuka K, Kasamatsu A et al. Targeting fibroblast growth factor receptor 3 enhances radiosensitivity in human squamous cancer cells. Oncogene. 2011 Oct 27;30(43):4447-4452. https://doi.org/10.1038/onc.2011.159
Uzawa, K. ; Ishigami, T. ; Fushimi, K. ; Kawata, T. ; Shinozuka, K. ; Kasamatsu, A. ; Sakamoto, Y. ; Ogawara, K. ; Shiiba, M. ; Bukawa, H. ; Ito, H. ; Tanzawa, H. / Targeting fibroblast growth factor receptor 3 enhances radiosensitivity in human squamous cancer cells. In: Oncogene. 2011 ; Vol. 30, No. 43. pp. 4447-4452.
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