Electric Signals Locate Tumors

Electric Signals Locate Tumors
A bioelectric signal able to identify cells likely to become tumors could also help to suppress tumor growth.

The team, from Tufts University, induced tumor growth in frogs and then examined them using a membrane voltage-sensitive dye and fluorescence microscopy. They found that the tumor sites could be recognized by a distinct bioelectric signal due to their depolarized membrane voltage. When the biologists changed the bioelectric code to hyperpolarize the tumor cells, the abnormal growth was slowed.

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