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Study shows how normal cells influence tumor growth
Date:10/21/2009

umor growth.

"Our study demonstrates that PTEN in surrounding fibroblasts plays an important role in suppressing cancer development," says co-principal investigator Michael Ostrowski, professor and chair of molecular and cellular biochemistry and co-director of the cancer center's Molecular Biology and Cancer Genetics Program.

To show this, Leone, Ostrowski and their colleagues removed PTEN from fibroblasts in the mammary glands of mice. They were surprised to discover that PTEN regulates a second gene, called Ets2, which executes the changes that occur in the tumor environment when PTEN is lost.

"Remarkably, this animal model mimics many of the features observed in human breast cancer, " Leone says, "so it should help us evaluate experimental agents that might be used in combination therapies that target faulty cells in the tumor environment, as well as cancer cells."


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Contact: Darrell E. Ward
darrell.ward@osumc.edu
614-293-3737
Ohio State University Medical Center
Source:Eurekalert

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