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Bioelectric signals can be used to detect early cancer
Date:1/31/2013

MEDFORD/SOMERVILLE, Mass. (February 1, 2013) 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.

"The news here is that we've established a bioelectric basis for the early detection of cancer," says Brook Chernet, doctoral student and the first author of a newly published research paper co-authored with Michael Levin, Ph.D., professor of biology and director of the Center for Regenerative and Developmental Biology.

Levin notes, "We've shown that electric events tell the cells what to do. The voltage changes are not merely a sign of cancer. They control and direct whether the cancer occurs or not."

Their paper, "Transmembrane Voltage Potential is an Essential Cellular Parameter for the Detection and Control of Tumor Development" will be published in the May 2013 issue of "Disease Models and Mechanisms" (available online on February 1).

Bioelectric signals underlie an important set of control mechanisms that regulate how cells grow and multiply. Chernet and Levin investigated the bioelectric properties of cells that develop into tumors in Xenopus laevis frog embryos.

In previous research, Tufts scientists have shown how manipulating membrane voltage can influence or regulate cellular behavior such as cell proliferation, migration, and shape in vivo, and be used to induce the formation or regenerative repair of whole organs and appendages. In this study, the researchers hypothesized that cancer can occur when bioelectric signaling networks are perturbed and cells stop attending to the patterning cues that orchestrate their normal development.

Tumor Cells Exhibit a Bioelectric Signature

The researchers induced tumor growth in the frog
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Contact: Alex Reid
alexander.reid@tufts.edu
617-688-2753
Tufts University
Source:Eurekalert  

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