FN1 and infection: mRNA levels of laminin α3 (LAMA3), laminin β3 (LAMB3), laminin γ2 (LAMC2), fibronectin, integrin α5 (ITGα5), ITGβ1, urokinase (uPA), urokinase receptor (uPAR), and TGF-β1 were measured at 3 and 5 days following infection in the four treatment groups, as shown in Figure 6A–I, respectively.