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Breast cancer drug shows promise against serious infections
Date:7/20/2009

e in patients. At high levels about the same as those used, experimentally, to treat brain tumors tamoxifen reduced yeast levels by 150 fold. In fact, the drug caused the fungus cells to break apart and die (lysis), and it didn't allow the surviving cells to morph into their disease-causing state.

In the past 20 years, only one new class of antifungal drugs has been introduced and they must be administered intravenously, not orally, which presents challenges in outpatient settings. The most widely used antifungal drug that can be given orally slows the growth of fungus cells but it doesn't kill them, which means that patients whose immune systems are compromised may have trouble completely fighting off the infections.

"We don't have vaccines against fungal infections and the few drugs we do have aren't always effective," Krysan said. "We've got a lot more work to do to figure out whether tamoxifen could be used in high doses or whether it could be used in combination with other treatments, but we're excited about the possibility of giving doctors another way to help these critically ill patients."


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Contact: Heather Hare
heather_hare@urmc.rochester.edu
585-273-2840
University of Rochester Medical Center
Source:Eurekalert

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