Figure 1.
Epithelial/non-stem cell to mesenchymal/cancer stem cell plasticity. Epithelial/non-cancer stem cells retaining cell plasticity respond to environmental or intrinsic cues by fluidly transitioning through intermediary stages until reaching a mesenchymal/cancer stem cell state. These intermediary states hold immense plasticity and are the roots behind metastatic dissemination and therapeutic failure. CSC: cancer stem cell.