Date: 12.2.2020
University of Wisconsin-Madison researchers have developed nanoparticles that, in the lab, can activate immune responses to cancer cells. If they are shown to work as well in the body as they do in the lab, the nanoparticles might provide an effective and more affordable way to fight cancer.
They are cheaper to produce and easier to engineer than the antibodies that underlie current immunotherapies, which as drugs cost tens of thousands of dollars a month.
"Immunotherapy basically boosts the patient's own immune system to fight against cancer cells better," says Seungpyo Hong, a professor in the UW-Madison School of Pharmacy. "The antibodies that are used right now are large, they're expensive, they're hard to engineer, and they don't always show the highest level of efficacy either. So we wanted to explore other ways to activate the immune system."
Hong and postdoctoral associate Woo-jin Jeong led the study, published online Jan. 2 in the Journal of the American Chemical Society, with collaborators at the University of Illinois at Chicago. It's the first demonstration that nanoparticles can act as immunotherapy agents.
More research is needed to understand their effectiveness in the body, but Hong has applied for a patent on the new nanoparticles and is now testing them in animal models.
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