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Instead, differentiated cells undergo what is known as dedifferentiation after the removal of the growth zone.

This reduction in neural selectivity, or dedifferentiation, is linked to worsening memory performance.

Such cellular dedifferentiation in the absence of Rb has also been observed in prostate cancer5.

Her team has discovered that cardiac progenitors from neonates, but not adults, seem to proliferate better under these microgravity conditions, and that they show signs of dedifferentiation—reverting back to a more primitive, unspecialized state.

Although still a controversial idea, many scientists now think that regeneration is driven by a process known as dedifferentiation.