Figure 4

Expression of the connecting segment-1 isoform of fibronectin (FN/CS-1), SDF-1 and CXCR4 in RA-SNC77 cells and MC/Car cells. Agarose gel electrophoresis analysis of cDNA fragments amplified by PCR using primer pairs specific to the CS-1 isoform of fibronectin (307 bp), SDF-1 (230 bp), and CXCR4 (206 bp). β-Actin (275 bp) was used as a positive control.