Zoekopdracht:
faculteit: "ACTA" en publicatiejaar: "2008"
| Auteurs | Z.F. Lu, B. Zandieh Doulabi, C.L. Huang, R.A. Bank, M.N. Helder | | Titel | ß1 integrins regulate chondrogenesis and rock signaling in adipose stem cells |
| Tijdschrift | Biochemical and Biophysical Research Communications |
| Jaargang | 372 |
| Jaar | 2008 |
| Nummer | 4 |
| Pagina's | 547-552 |
| ISSN | 0006291X |
| Faculteit | ACTA |
| Samenvatting | β1 integrins play a controversial role during chondrogenesis. Since the maturation of chondrocytes relies on a signaling switch from cell–cell to cell–matrix interactions, we hypothesized that β1 integrins play a different role at the earlier (mainly cell–cell interaction) from the later stage (mainly cell–matrix interaction) of chondrogenesis. Our data showed: in plain medium, sox9, collagen X, and collagen II gene expressions of ASCs were induced by β1-integrin blockage at day 14. In chondrogenic medium, however, sox 9, sox6, and collagen II gene expression were induced at day 4 but inhibited at day 14. In addition, both β1-integrin blockage and TGF-β1 down-regulated Rock-1 and -2 gene expression and produced the round cells. We concluded that β1 integrins play a more important role at the later stages than earlier stages of chondrogenesis, and that the onset of chondrogenesis promoted by β1-integrin blockage might be through inhibiting Rock signaling. |
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