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Using math to kill cancer cells
Date:6/14/2013

OttawaJune 14, 2013Here's a good reason to pay attention in math class. Nature Communications has published a paper from Ottawa researchers today, outlining how advanced mathematical modelling can be used in the fight against cancer. The technique predicts how different treatments and genetic modifications might allow cancer-killing, oncolytic viruses to overcome the natural defences that cancer cells use to stave off viral infection.

"Oncolytic viruses are special in that they specifically target cancer cells," explains Dr. Bell, a senior scientist at the Ottawa Hospital Research Institute and professor at the University of Ottawa's Faculty of Medicine. "Unfortunately, cancer is a very complicated and diverse disease, and some viruses work well in some circumstances and not well in others. As a result, there has been a lot of effort in trying to modify the viruses to make them safe, so they don't target healthy tissue and yet are more efficient in eliminating cancer cells."

Dr. Bell and co-author Dr. Mads Kaern, an assistant professor in the University of Ottawa's Faculty of Medicine and Canada Research Chair at the University's Ottawa Institute of Systems Biology, led a team that has used mathematical modelling to devise strategies for making cancer cells exquisitely sensitive to virus infection killing them without affecting normal, healthy cells.

"By using these mathematical models to predict how viral modifications would actually impact cancer cells and normal cells, we are able to accelerate the pace of research," says Dr. Kaern, who is also cross-appointed to the University's Department of Physics. "It allows us to quickly identify the most promising approaches to be tested in the lab, something that is usually done through expensive and time-consuming trial and error."

Drs. Bell and Kaern have established a mathematical model that described an infection cycle, including the way a virus replicated, spread a
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Contact: Paddy Moore
padmoore@ohri.ca
613-737-8899 x73687
Ottawa Hospital Research Institute
Source:Eurekalert

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