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Cancer 'cure' in mice to be tested in humans
Date:6/28/2008

WINSTON-SALEM, N.C. Scientists at Wake Forest University Baptist Medical Center are about to embark on a human trial to test whether a new cancer treatment will be as effective at eradicating cancer in humans as it has proven to be in mice.

The treatment will involve transfusing specific white blood cells, called granulocytes, from select donors, into patients with advanced forms of cancer. A similar treatment using white blood cells from cancer-resistant mice has previously been highly successful, curing 100 percent of lab mice afflicted with advanced malignancies.

Zheng Cui, Ph.D., lead researcher and associate professor of pathology, will be announcing the study June 28 at the Understanding Aging conference in Los Angeles.

The study, given the go-ahead by the U.S. Food and Drug Administration, will involve treating human cancer patients with white blood cells from healthy young people whose immune systems produce cells with high levels of cancer-fighting activity.

The basis of the study is the scientists' discovery, published five years ago, of a cancer-resistant mouse and their subsequent finding that white blood cells from that mouse and its offspring cured advanced cancers in ordinary laboratory mice. They have since identified similar cancer-killing activity in the white blood cells of some healthy humans.

"In mice, we've been able to eradicate even highly aggressive forms of malignancy with extremely large tumors," Cui said. "Hopefully, we will see the same results in humans. Our laboratory studies indicate that this cancer-fighting ability is even stronger in healthy humans."

The team has tested human cancer-fighting cells from healthy donors against human cervical, prostate and breast cancer cells in the laboratory with surprisingly good results. The scientists say the anti-tumor response primarily involves granulocytes of the innate immune system, a system known for fighting off infections.
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Contact: Jonnie Rohrer
jrohrer@wfubmc.edu
336-716-6972
Wake Forest University Baptist Medical Center
Source:Eurekalert

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