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Novel therapy for metastatic kidney cancer developed at VCU Massey Cancer Center
Date:12/15/2010

lished, FDA-approved drug enhances its toxicity to cancer cells."

In mouse models, injection of the virus caused kidney cancer cells and normal cells lining the kidneys to secrete the protein MDA-7/IL-24. In the primary tumor site where the virus was first injected, the secreted MDA-7/IL-24 protein caused the tumor to stop growing. And once the protein entered the blood stream it stopped the growth of a second, distinct tumor not directly infected by the adenovirus, a result called a "toxic bystander effect." Normal cells were unaffected. Sorafenib, already approved by the FDA to treat renal carcinoma, enhanced MDA-7/IL-24 toxicity in the laboratory and significantly increased its anti-tumor effects in animal tumor models.

"Adenoviral gene therapies are still very new, but they represent a potentially powerful tool in the fight against cancer," says Fisher. "Our ultimate goal is to move our research from the laboratory to patients. And based on our findings, we hope these therapies will be effective against a variety of cancers."

The MDA-7/IL-24 gene was originally discovered by Fisher when he was a professor at Columbia University College of Physicians and Surgeons in New York. The current research was developed by Dent and Fisher at VCU Massey Cancer Center and the VIMM, and the method by which the virus infects the cancer cells was developed in collaboration with Curiel. The investigators hope to advance the research to a Phase I clinical trial on patients with metastatic kidney cancer, and also are investigating the use of MDA-7/IL-24 gene therapy on other diseases, including melanoma and brain, prostate, pancreatic, breast and colon cancers.


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Contact: John Wallace
wallacej@vcu.edu
804-628-1550
Virginia Commonwealth University
Source:Eurekalert

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