Entry into and progression of vascular cells through the cell cycle is
considered a key event in vascular proliferative diseases. Multiple g
rowth factors and cytokines have been found to regulate vascular cell
proliferation. However, the machinery regulating cell cycle represents
the ''final common pathway'' of these signaling cascades and thus pro
vides an attractive therapeutic target for the prevention of vascular
proliferative diseases. This review focuses on the current understandi
ng of the regulation of the cell cycle machinery especially as it rela
tes to vascular cell biology and the feasibility of targeting cell cyc
le for the prevention of restenosis after balloon angioplasty and bypa
ss vein graft disease.