| First Author | Hayashi S | Year | 2009 |
| Journal | PLoS One | Volume | 4 |
| Issue | 5 | Pages | e5603 |
| PubMed ID | 19440349 | Mgi Jnum | J:148879 |
| Mgi Id | MGI:3847046 | Doi | 10.1371/journal.pone.0005603 |
| Citation | Hayashi S, et al. (2009) Sprouty4, an FGF inhibitor, displays cyclic gene expression under the control of the notch segmentation clock in the mouse PSM. PLoS One 4(5):e5603 |
| abstractText | BACKGROUND: During vertebrate embryogenesis, somites are generated at regular intervals, the temporal and spatial periodicity of which is governed by a gradient of fibroblast growth factor (FGF) and/or Wnt signaling activity in the presomitic mesoderm (PSM) in conjunction with oscillations of gene expression of components of the Notch, Wnt and FGF signaling pathways. PRINCIPAL FINDINGS: Here, we show that the expression of Sprouty4, which encodes an FGF inhibitor, oscillates in 2-h cycles in the mouse PSM in synchrony with other oscillating genes from the Notch signaling pathway, such as lunatic fringe. Sprouty4 does not oscillate in Hes7-null mutant mouse embryos, and Hes7 can inhibit FGF-induced transcriptional activity of the Sprouty4 promoter. CONCLUSIONS: Thus, periodic expression of Sprouty4 is controlled by the Notch segmentation clock and may work as a mediator that links the temporal periodicity of clock gene oscillations with the spatial periodicity of boundary formation which is regulated by the gradient of FGF/Wnt activity. |
