Figure 2. Upregulation of p21 in rSF transfected with pKLF6 cDNA. Little expression of p21 protein in the rLEC transfected with vehicle (lane 1) or without transfection (lane 2). Upregulation of p21 was detected in rLEC transfected with pKLF6 cDNA (lane 3). GAPDH served as loading control.