Figure 2. Influence of RB loss: context dependence.
a | RB loss leads to diverse outcomes, such as hyperplasia or genome instability, in different cellular and tissue contexts. b | A diverse class of signals leads to the dephosphorylation and activation of RB. Activated RB can mediate cell-cycle inhibition leading to quiescence and/or dormancy or senescence. With the loss of RB, it is possible to escape cell-cycle inhibition and progress to either proliferation or apoptotic cell death.
