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Targeted cancer therapy kills prostate tumor cells
Date:6/6/2011

the growth of the tumors that re-emerged after castration," Ho said.

The castration-resistant tumors showed a 65 percent necrosis. These mice had increased expression of GPR30 after castration, which Ho believes sensitized prostate tumors to the cell growth-inhibiting effects of G-1.

"These results mean G-1 won't work without androgen deprivation therapy," she said.

Therefore, Ho reported, the window of time when this targeted therapy might be effective for treating hormone-resistant prostate cancer is after androgen deprivation therapy. She said she believes G-1 can make androgen blockade more effective. G-1 caused no harm to the prostate or other vital organs in mice, she added.

Although GPR30 may have a role in cell growth in female tissues, Ho said it appears to have the opposite effect in men with hormone-resistant prostate cancer. "The beauty of this GPR30 is that it does not have any estrogen, and so it will not cause any side effects of estrogen," she said.


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Contact: Aaron Lohr
alohr@endo-society.org
240-482-1380
The Endocrine Society
Source:Eurekalert

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