Planar Polarized Protrusions Break the Symmetry of EGFR Signaling during Drosophila Bract Cell Fate Induction
نویسندگان
چکیده
منابع مشابه
Spitz/EGFr signalling via the Ras/MAPK pathway mediates the induction of bract cells in Drosophila legs.
In the development of Drosophila, the activation of the EGFr pathway elicits different cellular responses at different times and in different tissues. A variety of approaches have been used to identify the mechanisms that confer this response specificity. We have analysed the specification of bract cells in Drosophila legs. We observed that mechanosensory bristles induced bract fate in neighbou...
متن کاملFunctional intertwining of Dpp and EGFR signaling during Drosophila endoderm induction.
Endoderm induction in Drosophila is mediated by the extracellular signals Decapentaplegic (Dpp) and Wingless (Wg). We discovered a secondary signal with a permissive role in this process, namely Vein, a neuregulin-like ligand that stimulates the epidermal growth factor receptor (EGFR) and Ras signaling. Dpp and Wg up-regulate vein expression in the midgut mesoderm in two regions overlapping the...
متن کاملPolarized Wnt signaling regulates ectodermal cell fate in Xenopus.
How cells convert polarity cues into cell fate specification is incompletely understood. Here, we show that Wnt/β-catenin and Wnt/PCP signaling cooperate in this process in early Xenopus embryos. We find that the Wnt coreceptor Lrp6 is asymmetrically localized to the basolateral membrane in ectodermal blastomeres. Lrp6 asymmetry is controlled by Wnt/PCP signaling, indicating that this pathway r...
متن کاملCytoskeletal dynamics and cell signaling during planar polarity establishment in the Drosophila embryonic denticle.
Many epithelial cells are polarized along the plane of the epithelium, a property termed planar cell polarity. The Drosophila wing and eye imaginal discs are the premier models of this process. Many proteins required for polarity establishment and its translation into cytoskeletal polarity were identified from studies of those tissues. More recently, several vertebrate tissues have been shown t...
متن کاملThe control of cell fate in the embryonic visual system by atonal, tailless and EGFR signaling.
We describe here the role of the transcription factors encoding genes tailless (tll), atonal (ato), sine oculis (so), eyeless (ey) and eyes absent (eya), and EGFR signaling in establishing the Drosophila embryonic visual system. The embryonic visual system consists of the optic lobe primordium, which, during later larval life, develops into the prominent optic lobe neuropiles, and the larval ph...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Developmental Cell
سال: 2012
ISSN: 1534-5807
DOI: 10.1016/j.devcel.2012.07.016