Scientists at the University of Wisconsin School of Medicine and Public Health are breaking new ground to make cancer cells more susceptible to attack by the body’s own immune system.

Working in mice, a team led by Jamey Weichert, professor of radiology, and Zachary Morris, professor of human oncology, is combining two different techniques in its approach, using targeted radionuclide therapy, which delivers a low dose of cell-weakening radiation specifically to cancer cells, followed by immunotherapy, which helps the immune system to recognize and destroy cancer cells. The animal research is laying the foundation for future human and veterinary clinical trials.

“This has a huge advantage because we can target tumors systemically, regardless of number and anatomic location,” explains Weichert. “I often describe it as scuffing up the tumor with this low amount of radiation to make it easier for the immune system to recognize it.”

The team has been awarded $12.5 million in funding from the National Cancer Institute to further develop this approach to treating a variety of cancers, including prostate cancer and cancer in dogs.

The research effort includes four projects and four research and support cores led by Weichert, Morris and a suite of other UW–Madison researchers — many of them members of the University of Wisconsin Carbone Cancer Center.

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