I-1c overexpression preserves VSMCs contractile phenotype in balloon-injured rat carotid arteries. (A) Immunolabeling of control or balloon-injured carotid arteries with anti-I-1, anti-SERCA2a or anti-SM-MHC (red). Elastin autofluorescence is shown in green. Bar scale =20 μm. (B) Representative CREB, p21 and NFATC3 immunostaining of cross-sections from βGal and I-1c infected arteries at 2 weeks after surgery, m (media), ni (neointima), a (adventitia). Red color shows CREB, p21 and NFAT positive staining.