Genetic mutations in cancer cells can lead to resistance to treatment, thereby potentially resulting in relapse. However, a new article, published in the magazine section of the online, open-access journal PLoS Biology, suggests that the converse may also happen. Steven Frank from the University of California, Irvine, and Marsha Rosner from the University of Chicago, propose that it may often be the case that a few cells become resistant before any genetic change, and then later acquire the genes to stabilize that resistance...
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