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The dance of the cells: A minuet or a mosh?

Date: 24.5.2011 

The physical forces that guide how cells migrate-how they manage to get from place to place in a coordinated fashion inside the living body- are poorly understood. Scientists at the Harvard School of Public Health (HSPH) and the Institute for Bioengineering of Catalonia (IBEC) have, for the first time, devised a way to measure these forces during collective cellular migration. Their surprising conclusion is that the cells fight it out, each pushing and pulling on its neighbors in a chaotic dance, yet together moving cooperatively toward their intended direction.

Collective cellular migrations are necessary for multicellular life; for example, in order for cells to form the embryo, cells must move collectively. Or in the healing of a wound, cells must migrate collectively to fill the wound gap. But the migration process is also dangerous in situations such as cancer, when malignant cells, or clumps of cells, can migrate to distant sites to invade other tissues or form new tumors. Understanding how and why collective cellular migration happens may lead to ways to control or interrupt diseases that involve abnormal cell migration.

www.physorg.com


 

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