Activation of EGFR and ERK by rhomboid signaling regulates the consolidation and maintenance of sleep in Drosophila.

TitleActivation of EGFR and ERK by rhomboid signaling regulates the consolidation and maintenance of sleep in Drosophila.
Publication TypeJournal Article
Year of Publication2007
AuthorsFoltenyi K, Greenspan RJ, Newport JW
JournalNat Neurosci
Volume10
Issue9
Pagination1160-7
Date Published2007 Sep
ISSN1097-6256
KeywordsAnalysis of Variance, Animals, Animals, Genetically Modified, Behavior, Animal, Drosophila, Drosophila Proteins, Enzyme Activation, Extracellular Signal-Regulated MAP Kinases, Gene Expression Regulation, Developmental, Membrane Proteins, Motor Activity, Receptor, Epidermal Growth Factor, Signal Transduction, Sleep
Abstract

Epidermal growth factor receptor (EGFR) signaling in the mammalian hypothalamus is important in the circadian regulation of activity. We have examined the role of this pathway in the regulation of sleep in Drosophila melanogaster. Our results demonstrate that rhomboid (Rho)- and Star-mediated activation of EGFR and ERK signaling increases sleep in a dose-dependent manner, and that blockade of rhomboid (rho) expression in the nervous system decreases sleep. The requirement of rho for sleep localized to the pars intercerebralis, a part of the fly brain that is developmentally and functionally analogous to the hypothalamus in vertebrates. These results suggest that sleep and its regulation by EGFR signaling may be ancestral to insects and mammals.

DOI10.1038/nn1957
Alternate JournalNat. Neurosci.
PubMed ID17694052
Category: 
Greenspan Laboratory