(http://images.sciencedaily.com/2013/02/130201090812-large.jpg)
This shows a tumor within a tadplole embryo that has been labeled with red fluorescence to allow tracking. (Credit: Brook Chernet; Tufts University School of Arts and Sciences)
Biologists at Tufts University School of Arts and Sciences have discovered a bioelectric signal that can identify cells that are likely to develop into tumors. The researchers also found that they could lower the incidence of cancerous cells by manipulating the electrical charge across cells' membranes.