|Citation||Hurlbut, G.D., Kankel, M.W., Artavanis-Tsakonas, S. (2009). Nodal points and complexity of Notch-Ras signal integration. Proc. Natl. Acad. Sci. U.S.A. 106(7): 2218--2223. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||Metazoans use a handful of highly conserved signaling pathways to create a signaling backbone that governs development. How these few signals have such a versatile action likely depends upon the larger-scale network they form through integration, as exemplified by cross-talk between the Notch and receptor tyrosine kinase (RTK) pathways. We examined the transcriptional output of Notch-RTK cross-talk during Drosophila development and present in vivo data supporting a role for selected mutually regulated genes in signal integration. Interestingly, Notch-RTK integration did not lead to general antagonism of either pathway, as is commonly believed. Instead, integration had a combinatorial effect on specific cross-regulated targets, which unexpectedly included numerous core components of the RTK and other major signaling pathways (TGF-beta, Hh, Jak/Stat, nuclear receptor and Wnt). We find the majority of Ras-responsive genes are also Notch-responsive, suggesting Notch may function to specify the response to Ras activation.|
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|Language of Publication||English|
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|Also Published As|
|Abbreviation||Proc. Natl. Acad. Sci. U.S.A.|
|Title||Proceedings of the National Academy of Sciences of the United States of America|
|Data from Reference|