Figure 1.
The tumor metastatic cascade. The “metastatic cascade” describes the processes and restrictive bottlenecks through which tumor cells acquire cellular traits, allowing them to exit the primary tumor site and migrate to distant organs which they then colonize. This occurs via a series of steps including local invasion, intravasation, and extravasation. EMT: epithelial-mesenchymal transition. ECM: extracellular matrix.
