First Author | Akyürek LM | Year | 2010 |
Journal | Biochem Biophys Res Commun | Volume | 396 |
Issue | 2 | Pages | 359-63 |
PubMed ID | 20417618 | Mgi Jnum | J:162514 |
Mgi Id | MGI:4819077 | Doi | 10.1016/j.bbrc.2010.04.097 |
Citation | Akyurek LM, et al. (2010) Deficiency of cyclin-dependent kinase inhibitors p21Cip1 and p27Kip1 accelerates atherogenesis in apolipoprotein E-deficient mice. Biochem Biophys Res Commun 396(2):359-63 |
abstractText | Cyclin-dependent kinase inhibitors, p21(Cip1) and p27(Kip1), are upregulated during vascular cell proliferation and negatively regulate growth of vascular cells. We hypothesized that absence of either p21(Cip1) or p27(Kip1) in apolipoprotein E (apoE)-deficiency may increase atherosclerotic plaque formation. Compared to apoE(-/-) aortae, both apoE(-/-)/p21(-/-) and apoE(-/-)/p27(-/-) aortae exhibited significantly more atherosclerotic plaque following a high-cholesterol regimen. This increase was particularly observed in the abdominal aortic regions. Deficiency of p27(Kip1) accelerated plaque formation significantly more than p21(-/-) in apoE(-/-) mice. This increased plaque formation was in parallel with increased intima/media area ratios. Deficiency of p21(Cip1) and p27(Kip1) accelerates atherogenesis in apoE(-/-) mice. These findings have significant implications for our understanding of the molecular basis of atherosclerosis associated with excessive proliferation of vascular cells. |