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Title

Local Juvenile Hormone activity regulates gut homeostasis and tumor growth in adult Drosophila

AuthorsRahman, M. M.; Franch-Marro, Xavier ; Maestro, José L. ; Martín Casacuberta, David A. ; Casali, A.
Issue Date2017
PublisherNature Publishing Group
CitationScientific Reports 7: 11677 (2017)
AbstractHormones play essential roles during development and maintaining homeostasis in adult organisms, regulating a plethora of biological processes. Generally, hormones are secreted by glands and perform a systemic action. Here we show that Juvenile Hormones (JHs), insect sesquiterpenoids synthesized by the corpora allata, are also synthesized by the adult Drosophila gut. This local, gut specific JH activity, is synthesized by and acts on the intestinal stem cell and enteroblast populations, regulating their survival and cellular growth through the JH receptors Gce/Met and the coactivator Tai. Furthermore, we show that this local JH activity is important for damage response and is necessary for intestinal tumor growth driven by activating mutations in Wnt and EGFR/Ras pathways. Together, our results identify JHs as key hormonal regulators of gut homeostasis and open the possibility that analogous hormones may play a similar role in maintaining vertebrate adult intestinal stem cell population and sustaining tumor growth.
Publisher version (URL)http://doi.org/10.1038/s41598-017-11199-9
URIhttp://hdl.handle.net/10261/155219
DOI10.1038/s41598-017-11199-9
ISSN2045-2322
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