|Citation||Giraldez, A.J., Cohen, S.M. (2003). Wingless and Notch signaling provide cell survival cues and control cell proliferation during wing development. Development 130(26): 6533--6543. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||Tissue growth during animal development depends on the coordination of cell proliferation and cell death. The EGF-receptor/MAPK, Hedgehog, Dpp, Wingless (Wg) and Notch signaling pathways have been implicated in growth control in the developing Drosophila wing. In this report, we examine the effects of Notch and Wg on growth in terms of cell proliferation and cell survival. Reduction of Wg signaling impaired compartment and clonal growth, and increased cell death. Inhibition of apoptosis in cells deficient for Wg signaling only partially rescued the clone growth defect, suggesting that Wg is also required to promote cell proliferation. This is supported by the finding that ectopic expression of Wg caused over-proliferation of cells in the proximal wing. Localized activation of Notch had non-autonomous effects on cell proliferation. However, only part of this effect was attributable to Notch-dependent induction of Wg, suggesting that other Notch-inducible signaling molecules contribute to the control of cell proliferation in the wing.|
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|Language of Publication||English|
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