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Regulation of tenascin expression in bone
Author(s) -
Morgan Jessica M.,
Wong Alice,
Yellowley Clare E.,
Genetos Damian C.
Publication year - 2011
Publication title -
journal of cellular biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 165
eISSN - 1097-4644
pISSN - 0730-2312
DOI - 10.1002/jcb.23265
Subject(s) - tenascin c , microbiology and biotechnology , wnt signaling pathway , tenascin , osteoblast , bone morphogenetic protein 2 , bone morphogenetic protein , chemistry , signal transduction , extracellular matrix , biology , biochemistry , in vitro , gene , fibronectin
Tenascins regulate cell interaction with the surrounding pericellular matrix. Within bone, tenascins C and W influence osteoblast adhesion and differentiation, although little is known about the regulation of tenascin expression. In this study we examined the effect of osteogenic differentiation, bone morphogenetic protein (BMP) and Wnt growth factors, and mechanical loading on tenascin expression in osteogenic cells. Osteogenic differentiation increased tenascin C ( TnC ), and decreased tenascin W ( TnW ), expression. Both growth factors and mechanical loading increased both TnC and TnW expression, albeit via distinct signaling mechanisms. Both BMP‐2 and Wnt5a induction of tenascin expression were mediated by MAP kinases. These data establish a role for BMP, Wnts, and mechanical loading in the regulation of tenascin expression in osteoblasts. J. Cell. Biochem. 112: 3354–3363, 2011. © 2011 Wiley Periodicals, Inc.