Expression of interleukin-17B in mouse embryonic limb buds and regulation by BMP-7 and bFGF

作者: Grayson DuRaine , Janet Y.L. Tien , Corinne Lee , Timothy A. Moseley , A. Hari Reddi

DOI: 10.1016/J.BBRC.2004.11.087

关键词: Cell biologyBone morphogenetic protein 7Internal medicineBiologyFibroblast growth factorEndocrinologyBone morphogenetic protein 5ChondrogenesisBone collarBone morphogenetic proteinBone morphogenetic protein 6Basic fibroblast growth factorBiophysicsBiochemistryMolecular biology

摘要: Interleukin-17B (IL-17B) is a member of interleukin-17 family that displays variety proinflammatory and immune modulatory activities. In this study, we found IL-17B mRNA was maximally expressed in the limb buds 14.5 days post coitus (dpc) mouse embryo declined to low level at 19.5 dpc. By immunohistochemical staining, strongest signals were observed cells bone collar primary ossification center. The chondrocytes resting proliferative zones stained moderately, while little staining seen hypertrophic zone. Furthermore, both C3H10T1/2 MC3T3-E1 cells, up-regulated by recombinant human morphogenetic protein-7, but down-regulated basic fibroblast growth factor via extracellular signal-regulated kinase pathway. This study provides first evidence embryonic may play role chondrogenesis osteogenesis.

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