Scientists Gain Insights Into Cancer's Spread (HealthDay)

WEDNESDAY, Sept. 20 (HealthDay News) -- Aggressive cancer cells have a "toggle switch" that enables them to travel to other parts of the body and form new tumors, say Duke University researchers. Until now, scientists have believed that gene mutations must occur in cancer cells so that they transform permanently from stationary epithelial cells to migratory mesenchymal cells. These mutations would allow them to metastasize, or travel to other parts of the body. But in a new study published in this ...