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Surviving ovarian cancer: Rutgers scientists attack drug resistant cancer cells
Date:12/9/2013

Scientists at Rutgers University have developed a targeted drug delivery system that they believe could make ovarian cancer more treatable and increase survival rates for the most deadly gynecological cancer in the United States.

Tamara Minko, professor in the Ernest Mario School of Pharmacy and Lorna Rodriguez, professor of obstetrics and gynecology at Rutgers Cancer Institute of New Jersey, say because there is not a good screening method for ovarian cancer, most women with the disease are not diagnosed until after it has metastasized to other organs and surgery and chemotherapy are not as effective.

"Once the ovarian cancer becomes drug resistant we cannot cure it," says Rodriguez an oncologist who provides treatment to ovarian cancer patients. "Circumventing the development of drug resistance is a reasonable approach and very much needed."

The main reason for advanced-stage ovarian cancer, they say, is an out of control protein CD44, which enables cancerous tumors to proliferate and become resistant to conventional drug treatments. The result: a five-year survival rate for patients with advanced-stage ovarian cancer that is only 30 percent.

In a new study published in Clinical Cancer Research, Minko and Rodriguez provide results of animal research in which the cancer is attacked at the genetic level by using small, inhibiting RNA molecules that directly target and decrease the excess CD44 protein in cancer cells while simultaneously treating patients with the anti-cancer drug paclitaxel. This allows cells within the cancerous tumors to be successfully treated even at an advanced stage.

"We expect that the proposed treatment will be especially effective in advanced stages of ovarian cancers, where there are many cancer stem cells in the tumors that resist conventional drug treatment," says Minko.

In their research, scientists at Rutgers created animal models that closely resemble the cancerous tumors found in women w
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Contact: Robin Lally
rlally@ucm.rutgers.edu
732-932-7084 x652
Rutgers University
Source:Eurekalert

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