Figure 3
Expression of integrin receptors in pancreatic cancer cell lines. Merged images with type IV collagen in red and integrin receptors in green. Type IV collagen is highly expressed by pancreatic cancer cells. Integrin α1 is expressed, but is found also intracellularly, not exclusively at the cell surface. Integrin α2 and β1 are expressed and partly colocalized with type IV collagen (in yellow). Cell nuclei are stained by DAPI (in blue). In the figure HPAC cells are shown, but similar expression pattern was seen with CPFAC-1.