Journal
BJU INTERNATIONAL
Volume 107, Issue 11, Pages 1818-1824Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1464-410X.2010.09690.x
Keywords
hypoxia; castration; tirapazamine; prostate; Dunning H
Categories
Funding
- Swedish Cancer Society [4716]
- Swedish Research Council [5935]
- Lions Cancer Research foundation in Umea
Ask authors/readers for more resources
OBJECTIVE To explore the effects of castration therapy, the standard treatment for advanced prostate cancer, in relation to tumour hypoxia and to elicit its importance for the short-and long-term therapeutic response. MATERIAL AND METHODS We used the androgen-sensitive rat Dunning H prostate tumour model that transiently responds to castration treatment followed by a subsequent relapse, much like the scenario in human patients. Tumour tissues were analysed using stereological methods in intact, 1 and 7 days after castration therapy. RESULTS Hypoxia was transiently up-regulated after castration therapy and correlated with the induction of tumour cell apoptosis. When castration therapy was combined with tirapazamine (TPZ), a drug that targets hypoxic cells and the vasculature, the effects on tumour cell apoptosis and tumour volume were enhanced in comparison to either castration or TPZ alone. CONCLUSION The present study suggests that castration-induced tumour hypoxia is a novel target for therapy.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available