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- W2129460080 abstract "Cell rearrangements require dynamic changes in cell-cell contacts to maintain tissue integrity. We investigated the function of Cdc42 in maintaining adherens junctions (AJs) and apical polarity in the Drosophila melanogaster neuroectodermal epithelium. About one third of cells exit the epithelium through ingression and become neuroblasts. Cdc42-compromised embryos lost AJs in the neuroectoderm during neuroblast ingression. In contrast, when neuroblast formation was suppressed, AJs were maintained despite the loss of Cdc42 function. Loss of Cdc42 function caused an increase in the endocytotic uptake of apical proteins, including apical polarity factors such as Crumbs, which are required for AJ stability. In addition, Cdc42 has a second function in regulating endocytotic trafficking, as it is required for the progression of apical cargo from the early to the late endosome. The Par complex acts as an effector for Cdc42 in controlling the endocytosis of apical proteins. This study reveals functional interactions between apical polarity proteins and endocytosis that are critical for stabilizing dynamic basolateral AJs." @default.
- W2129460080 created "2016-06-24" @default.
- W2129460080 creator A5079251024 @default.
- W2129460080 creator A5083095386 @default.
- W2129460080 date "2008-12-08" @default.
- W2129460080 modified "2023-10-03" @default.
- W2129460080 title "Cdc42 and Par proteins stabilize dynamic adherens junctions in the <i>Drosophila</i> neuroectoderm through regulation of apical endocytosis" @default.
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- W2129460080 doi "https://doi.org/10.1083/jcb.200807020" @default.
- W2129460080 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2600741" @default.
- W2129460080 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19064670" @default.
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