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Mechanical waves mediate wound repair and tumor growth

from Physics World

Researchers in Spain and the U.S. have reported in Nature Physics that ultraslow mechanical waves occur during the expansion of living tissue. These waves could explain how cells migrate to the right places for an organism to grow, repair itself or develop tumors. Growth, repair and the development of tumors are all processes that involve the expansion of a monolayer of cells, or "epithelial expansion." If you have a small wound, for example, the wound will form a scab and, beneath that, a matrix for the construction of new tissue. But in the final stage, a monolayer of cells will migrate from undamaged tissue to form a new outer-boundary layer. more

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