When cultured on a fibronectin-coated microfabricated post-array-detector (mPAD), cancer cells or Ha-RasV12-transformed cells (gray bar) deflected the micropost to a lesser extent than their normal counterparts (black bar), which resulted in a lower total force and a lower traction force for each post (Figure 1G–1I). The gene discussed is FN1; the disease is cancer.