Temporal and spatial gene expression of major bone extracellular matrix molecules during embryonic mandibular osteogenesis in rats.

作者: Jing-Xu Zhu , Yasuyuki Sasano , Ichiro Takahashi , Itaru Mizoguchi , Manabu Kagayama

DOI: 10.1023/A:1017587712914

关键词:

摘要: It is not known how gene expression of bone extracellular matrix molecules controlled temporally and spatially, or it related with morphological differentiation osteoblasts during embryonic osteogenesis in vivo. The present study was designed to examine expressions type I collagen, osteonectin, sialoprotein, osteopontin, osteocalcin mandibular using situ hybridization. Wistar rat embryos 13-20 days post coitum were used. condensation mesenchymal cells formed 14-day mandibles expressed genes pro-alpha 1 (I) sialoprotein osteopontin. Cuboidal surrounding the uncalcified seen as early 15-day mandibles, while flat lining surface calcified from 16-day mandibles. 1(I) osteonectin intensely but osteopontin very weakly. In contrast, strongly. Osteocytes actively, particular, demonstrated distinct pattern

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