Journal
CRITICAL REVIEWS IN BIOCHEMISTRY AND MOLECULAR BIOLOGY
Volume 41, Issue 6, Pages 339-385Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10409230600914344
Keywords
drosophila; epidermal growth factor receptor; notch; signal tranduction; eye development
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Funding
- NEI NIH HHS [R01 EY12549] Funding Source: Medline
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Metazoan development relies on a highly regulated network of interactions between conserved signal transduction pathways to coordinate all aspects of cell fate specification, differentiation, and growth. In this review, we discuss the intricate interplay between the epidermal growth factor receptor (EGFR; Drosophila EGFR/DER) and the Notch signaling pathways as a paradigm for signal integration during development. First, we describe the current state of understanding of the molecular architecture of the EGFR and Notch signaling pathways that has resulted from synergistic studies in vertebrate, invertebrate, and cultured cell model systems. Then, focusing specifically on the Drosophila eye, we discuss how cooperative, sequential, and antagonistic relationships between these pathways mediate the spatially and temporally regulated processes that generate this sensory organ. The common themes underlying the coordination of the EGFR and Notch pathways appear to be broadly conserved and should, therefore, be directly applicable to elucidating mechanisms of information integration and signaling specificity in vertebrate systems.
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