http://www.eurekalert.org/pub_releases/2006-08/uop-uop082306.php
Stem cells determine whether they become nerve, muscle or bone by physical touch with surrounding material and by chemical messengers. Descovering that touch could determine what type cell would be produced was a great surprise to the researchers above.
The article describes how material inside the cell that acts similar to muscles in larger bodies work to determine the stiffness of the surrounding environment.
Dead cardiac cells that are stiffer than the living material could influence the effectiveness of stem cell therapy in the heart.
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