Restoration of FGF receptor type 2 enhances radiosensitivity of hormone-refractory human prostate carcinoma PC-3 cells.
Anticancer Res
; 28(4B): 2141-6, 2008.
Article
em En
| MEDLINE
| ID: mdl-18751387
ABSTRACT
BACKGROUND:
This study was undertaken to investigate the radiosensitizing effects of fibroblast growth factor receptor 2IIIb (FGFR2IIIb) in androgen-independent human prostate carcinoma PC-3 cells devoid of normally resident epithelial cell FGFR2IIIb. MATERIALS ANDMETHODS:
A clonal line of PC-3 cells expressing FGFR2IIIb was established by stable transfection. Clonogenic cell survival, apoptosis and cell cycle distribution with and without gamma-irradiation were then compared between FGFR2IIIb-expressing PC-3 cells and control cells mock-transfected with vector alone.RESULTS:
Gamma-irradiation resulted in an increase of clonogenic cell death concurrent with enhanced apoptosis and cell cycle arrest in the G2/M-phase in both transfected and untransfected cells. A quantitative analysis of all three parameters indicated that cells expressing FGFR2IIIb were significantly more sensitive to irradiation than control cells.CONCLUSION:
These results indicate that restoration of FGFR2IIIb to PC-3 cells enhances their sensitivity to irradiation through acceleration of apoptosis and cell cycle arrest.
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
/
Receptor Tipo 2 de Fator de Crescimento de Fibroblastos
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article