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Vascular Calcification~Pathological Mechanism and Clinical Application~. Role of vascular smooth muscle cells in vascular calcification. Kurabayashi Masahiko 1 1Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Japan. pp.661-669
Published Date 2015/4/28
DOI https://doi.org/10.20837/4201505037
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 Vascular calcification is commonly seen with aging, chronic kidney disese(CKD), diabetes, and atherosclerosis, and is closely associated with cardiovascular morbidity and mortality. Vascular calcification has long been regarded as the final stage of degeneration and necrosis of arterial wall and a passive, unregulated process. However, it is now known to be an active and tightly regulated process involved with phenotypic transition of vascular smooth muscle cells(VSMC)that resembles bone mineralization. Briefly, calcium deposits of atherosclerotic plaque consist of hydroxyapatite and may appear identical to fully formed lamellar bone. By using a genetic fate mapping strategy, VSMC of the vascular media give rise to the majority of the osteochondrogenic precursor- and chondrocyte-like cells observed in the calcified arterial media of MGP-/- mice. Osteogenic differentiation of VSMC is characterized by the expression of bone-related molecules including bone morphogenetic protein(BMP)-2, Msx2 and osteopontin, which are produced by osteoblasts and chondrocytes. Our recent findings are that(i)Runx2 and Notch1 induce osteogenic differentiation, and(ii)advanced glycation end-product(AGE)/receptor for AGE(RAGE)and palmitic acid promote osteogenic differentiation of VSMC. To understand of the molecular mechanisms of vascular calcification is now under intensive research area.



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電子版ISSN 印刷版ISSN 0917-5857 医薬ジャーナル社

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