Figure 7
Increased stathmin expression in
KIS–/– VSMCs.
(A) Quantitative analysis of 4 independent Western blots demonstrated increased cytoplasmic stathmin protein concentrations normalized to GAPDH in KIS–/– VSMCs serum starved and released for the indicated times. n = 4. (B) Representative Western blot of stathmin expression in KIS+/+ and KIS–/– VSMCs corresponding to quantitative data in A. GAPDH served as loading control. (C and D) Stathmin (C) and p27Kip1 (D) immunohistochemistry demonstrated a higher abundance of stathmin and p27Kip1 7 and 14 days after vascular injury in vessels of KIS–/– mice than in KIS+/+ mice. Arrows denote internal elastica. (E) Movat pentachrome staining revealed increased accumulation of glycosaminoglycans 14 days after injury in the neointima of KIS–/– mice compared with KIS+/+ mice (arrow indicates green staining), whereas there was no difference in extracellular matrix accumulation or composition between the genotypes 7 days after injury. Original magnification, ×400. *P < 0.05 vs. KIS+/+.