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Going for gold with a novel interventional radiology treatment for pancreatic cancer
Date:3/16/2010

TAMPA, Fla. (March 16, 2010)Pancreatic cancerknown as the most fatal cancer with no known effective treatmentrequires a radical new therapy. A promising approach may come in the form of tiny gold nanoparticlesloaded with a therapeutic agent to kill cancerin a novel procedure called "nanoembolization," said researchers at the Society of Interventional Radiology's 35th Annual Scientific Meeting in Tampa, Fla.

"As current treatments for pancreatic cancer offer minimal benefit, entirely new approaches are needed. We've developed a radically different approach that might be able to overcome some of the obstacles that have hampered previous therapies for pancreatic cancer," said Reed A. Omary, M.D., M.S., an interventional radiologist and professor of radiology and biomedical engineering and vice chair of research in the radiology department at Northwestern University in Chicago, Ill. Traditional attempts to treat this particularly horrible cancer include some combination of chemotherapy, radiation therapy, and/or surgery. However, none of these methods results in effective treatment.

Instead, Northwestern researchers constructed extremely tiny particles made out of goldtermed nanoparticleswith cancer-killing agents attached to them. These nanoparticles, which measure only 13 nanometers in diameter, are so small that 8,000 of them could be strung together and still occupy less than the width of a single human hair. In animal studies, the research team used an interventional radiology technique to inject the cancer-killing nanoparticles directly into the tumor. The investigators call this novel delivery technique "nanoembolization." Omary said, "Using nanoembolization, we dramatically increased the concentration of the nanoparticles in the tumor by 55 times over traditional methods that use a vein (such as at the elbow). That's a massive improvementand a promising discovery for this dreadful disease."

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Contact: Maryann Verrillo
mverrillo@SIRweb.org
703-460-5572
Society of Interventional Radiology
Source:Eurekalert

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