Until now, the motility and invasive capacity of cancer cells had only been assessed biochemically with a method called Rac/Cdc42 pull-down assay. However, when using this approach, the positional information within the cancer tissue is completely lost, and it is also impossible to evaluate the heterogenicity of the cells (how different they are from each other). Read more . . .
Rac and Cdc42 are well-studied low molecular weight G proteins that regulate the ability of cancer cells to move, which is called their motility and invasive capacity. The more active these molecules are, the greater the ability of cancer cells to move. This also makes it more likely that diseased cells will invade and metastasize in blood and lymph vessels.