Research Project
Grant-in-Aid for Scientific Research (C)
Since MSC has multilineage potential, we investigated the roles of DEC1 in osteogenic and adipogenic differentiation of human bone marrow-derived MSC. After osteogenic induction of MSC in medium containing dexamethasone, beta-glycerophosphate, and ascorbic acid, DEC1 expression gradually increased from day 5 to day 14 ; while expression levels of DEC1 mRNA markedly decreased on days 3 and 7 after adipogenic induction. Under osteogenic conditions, infection with DEC1-expressing adenovirus enhanced the induction of osteopontin and alkaline phosphatase, and matrix calcification. Even in the absence of the osteogenic induction medium, DEC1 overexpression increased osteopontin and alkaline phosphatase expression, although it did not induce calcification. In contrast, forced expression of DEC1 suppressed adipogenic differentiation of MSC. These findings indicate that increased DEC1 expression facilitates osteogenic differentiation of mesenchymal stem cells, and inhibits the onset of adipogenic differentiation.
All 2004 2003 Other
All Journal Article (15 results) Publications (4 results)
Biochem.Biophys.Res.Commun. 313
Pages: 117-124
J.Biol.Rhythms. 19
Pages: 126-134
Genes Cells 9
Pages: 317-329
Biochem.J. 382
Pages: 43-50
Eur.J.Biochem. 271
Pages: 4409-4419
Studia Humana et Naturalia 38
Pages: 19-53
110004621860
J.Biol.Rhythms 19
Euro.J.Biochem. 271
Arch.Biochem.Biophys. 409
Pages: 207-211
FEBS Lett. 548
Pages: 17-20