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Mayo Clinic researchers identify enzyme linked to prostate cancer
Date:12/17/2012

JACKSONVILLE, Fla. Researchers at Mayo Clinic's campus in Florida have identified an enzyme specifically linked to aggressive prostate cancer, and have also developed a compound that inhibits the ability of this molecule to promote the metastatic spread of the cancer.

Their study, published in the Dec. 18 online edition of Molecular Cancer Research, is the first to link the enzyme PRSS3 to prostate cancer.

"This molecule is a protease, which means it digests other molecules. Our data suggests PRSS3 activity changes the environment around prostate cancer cells perhaps by freeing them from surrounding tissue to promote malignancy and invasiveness," says the study's senior investigator, Evette Radisky, Ph.D., a cancer biologist in the Mayo Clinic Cancer Center. "I don't think PRSS3 is the only factor involved in driving aggressive prostate cancer, but it may be significant for a certain subset of this cancer the kind that is potentially lethal," she says.

Dr. Radisky and five colleagues at Mayo Clinic in Florida made the discovery by investigating publicly available databases, derived from clinical studies, which contain data on molecules that are upregulated irregularly switched on in cancer. They had previously discovered a link between the protease and the earlier stages of breast cancer.

The research team wanted to see if any other cancer abnormally expresses this protease, and at what stages so they mined multiple databases.

"The link between PRSS3 activity and aggressive prostate cancer jumped out at us," Dr. Radisky says. "We found a definitive trend of increa
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Contact: Kevin Punsky
punsky.kevin@mayo.edu
904-953-2299
Mayo Clinic
Source:Eurekalert

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