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Nature Reviews Molecular Cell Biology 9, 740–741 (1 October 2008) | doi:10.1038/nrm2506

Cell division: Back and forth

Arianne Heinrichs

In contrast to terminally differentiated or senescent cells, quiescent cells retain the ability to resume proliferation following prolonged cell-cycle arrest. Roberts and colleagues now shed light on the mechanism that underlies this reversibility.