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Medicineworld.org: Gene Therapy For Ovarian Cancer

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Gene Therapy For Ovarian Cancer

Gene Therapy For Ovarian Cancer
University of Pittsburgh School of Medicine scientists have used gene treatment to either completely abolish or significantly inhibit tumor progression in a mouse model of ovary cancer. The scientists believe these findings, which are being presented at the American Society of Gene Therapy annual meeting in Baltimore, May 31 to June 4, may significantly improve the prognosis for ovary cancer patients.

Ovary cancer is diagnosed in more than 25,000 women in the United States each year, and about 16,000 American women die from the disease annually. Despite aggressive surgery and chemotherapy approaches, the prognosis for ovary cancer is poor, and most women have a life expectancy of only three to four years after their diagnoses.

In this study, the Pitt researchers inoculated mice with an ovary cancer cell line. They treated some of the mice immediately with a genetically engineered vaccinia virus containing a gene coding cytosine deaminase, a suicide gene, and delayed therapy of other mice for 30 or 60 days. Control mice were inoculated with ovary cancer cells but were not given the gene treatment.

The scientists found complete inhibition of tumor growth in the mice that were treated immediately with gene treatment and significant tumor inhibition in the 30- and 60-day delayed therapy mice. In contrast, all non-gene-therapy treated mice either died or were euthanized due to overwhelming buildup of fluid in the peritoneal cavity by 94 days following tumor inoculation.

As per corresponding author David L. Bartlett, M.D., professor of surgery and chief of the division of surgical oncology at the University of Pittsburgh School of Medicine, gene treatment offers an attractive new approach for treating ovary cancer. "Current therapys for ovary cancer are fairly harsh. Given their tumor selectivity and cancer killing potential, vaccinia vectors expressing recombinant gene products represents a potent, non-toxic alternative for treating this deadly disease," he said.



Posted by: Emily    Source




Did you know?
University of Pittsburgh School of Medicine scientists have used gene treatment to either completely abolish or significantly inhibit tumor progression in a mouse model of ovary cancer. The scientists believe these findings, which are being presented at the American Society of Gene Therapy annual meeting in Baltimore, May 31 to June 4, may significantly improve the prognosis for ovary cancer patients.

Medicineworld.org: Gene Therapy For Ovarian Cancer

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