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Osteoimmunology~Beyond the Boundaries~. Cellular interplay of bone cells and vascular endothelial cells in bone. Hasegawa Tomoka 1 , Erika 2 , Abe Miki 3 , Amizuka Norio 4 1Department of Developmental Biology of Hard Tissue,Graduate School of Dental Medicine, Hokkaido University, Japan. 2Department of Developmental Biology of Hard Tissue,Graduate School of Dental Medicine, Hokkaido University, Japan. 3Department of Developmental Biology of Hard Tissue,Graduate School of Dental Medicine, Hokkaido University, Japan. 4Department of Developmental Biology of Hard Tissue,Graduate School of Dental Medicine, Hokkaido University, Japan. pp.677-682
Published Date 2016/4/28
DOI https://doi.org/10.20837/4201605677
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 During endochondral bone development, the longitudinal vascular invasion into cartilage primordium initially takes place, by which mineralized cartilage matrix would be exposed into bone. Thereafter, osteogenic cells differentiate into mature osteoblasts to deposit new bone onto the exposed mineralized cartilage. New bone formation at the chondro-osseous junction appears to be achieved by the process of modeling, but not by bone remodeling based on cellular coupling between osteoclasts and osteoblasts. Recently, a specific vessel subtype in bone was reported:Vascular endothelial cells close to the chondro-oseous junction showed intense CD31/Endomucin(CD31hiEmcnhi, type H), while the endothelial cells of sinusoidal vessels in diaphysis revealed only weak CD31/Endomucin(CD31loEmcnlo, type L).It is suggested crucial roles of endothelial HIF in controlling bone angiogenesis, type H vessel abundance, endothelial growth factor expression and osteogenesis.



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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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