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Title: | JAK/STAT controls organ size and fate specification by regulating morphogen production and signalling |
Author: | Recasens Álvarez, Carles Ferreira, Ana Milán, Marco |
Keywords: | Morfogènesi Drosòfila Morphogenesis Drosophila |
Issue Date: | 3-Jan-2017 |
Publisher: | Macmillan |
Abstract: | A stable pool of morphogen-producing cells is critical for the development of any organ or tissue. Here we present evidence that JAK/STAT signalling in the Drosophila wing promotes the cycling and survival of Hedgehog-producing cells, thereby allowing the stable localization of the nearby BMP/Dpp-organizing centre in the developing wing appendage. We identify the inhibitor of apoptosis dIAP1 and Cyclin A as two critical genes regulated by JAK/STAT and contributing to the growth of the Hedgehog-expressing cell population. We also unravel an early role of JAK/STAT in guaranteeing Wingless-mediated appendage specification, and a later one in restricting the Dpp-organizing activity to the appendage itself. These results unveil a fundamental role of the conserved JAK/STAT pathway in limb specification and growth by regulating morphogen production and signalling, and a function of pro-survival cues and mitogenic signals in the regulation of the pool of morphogen-producing cells in a developing organ. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1038/ncomms13815 |
It is part of: | Nature Communications, 2017, vol. 8, p. 13815 |
URI: | http://hdl.handle.net/2445/105644 |
DOI: | http://dx.doi.org/10.1038/ncomms13815 |
ISSN: | 2041-1723 |
Appears in Collections: | Articles publicats en revistes (Institut de Recerca Biomèdica (IRB Barcelona)) |
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