Abstract：
:Dickkopf-1 (Dkk1) is a secreted Wnt antagonist with a well-established role in head induction during development. Numerous studies have emerged implicating Dkk1 in various malignancies and neurodegenerative diseases through an unknown mechanism. Using zebrafish gastrulation as a model for collective cell migration, we unveil such a mechanism, identifying a role for Dkk1 in control of cell connectivity and polarity in vivo, independent of its known function. We find that Dkk1 localizes to adhesion complexes at the plasma membrane and regions of concentrated actomyosin, suggesting a direct involvement in regulation of local cell adhesion. Our results show that Dkk1 represses cell polarization and integrity of cell-cell adhesion, independently of its impact on β-catenin protein degradation. Concurrently, Dkk1 prevents nuclear localization of β-catenin by restricting its distribution to a discrete submembrane pool. We propose that redistribution of cytosolic β-catenin by Dkk1 concomitantly drives repression of cell adhesion and inhibits β-catenin-dependent transcriptional output.
journal_name
Dev Celljournal_title
Developmental cellauthors
Johansson M,Giger FA,Fielding T,Houart Cdoi
10.1016/j.devcel.2019.10.026subject
Has Abstractpub_date
2019-12-16 00:00:00pages
775-786.e3issue
6eissn
1534-5807issn
1878-1551pii
S1534-5807(19)30904-9journal_volume
51pub_type
杂志文章abstract：:Axillary meristems (AMs) give rise to lateral shoots and are critical to plant architecture. Understanding how developmental cues and environmental signals impact AM development will enable the improvement of plant architecture in agriculture. Here, we show that ARGONAUTE10 (AGO10), which sequesters miR165/166, promot...
journal_title：Developmental cell
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abstract：:TGF-beta superfamily signaling pathways emerged with the evolution of multicellular animals, suggesting that these pathways contribute to the increased diversity and complexity required for the development and homeostasis of these organisms. In this review we begin by exploring some key developmental and disease proce...
journal_title：Developmental cell
pub_type： 杂志文章,评审
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abstract：:The transcription factors Abrupt (Ab) and Knot (Kn) act as selectors of distinct dendritic arbor morphologies in two classes of Drosophila sensory neurons, termed class I and class IV, respectively. We performed binding-site mapping and transcriptional profiling of these isolated neurons. Their profiles were similarly...
journal_title：Developmental cell
pub_type： 杂志文章
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abstract：:Chronic inflammation is associated with tumorigenesis, but how acute inflammation affects the tumor microenvironment is less known. Recently, Antonio et al. (2015) found that neutrophils attracted to an acute wound such as a biopsy drive cell proliferation of nearby pre-neoplastic cells, suggesting that acute wounds m...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2015.07.005
更新日期：2015-07-27 00:00:00
abstract：:In eukaryotes, small RNAs (sRNAs) have key roles in development, gene expression regulation, and genome integrity maintenance. In ciliates, such as Paramecium, sRNAs form the heart of an epigenetic system that has evolved from core eukaryotic gene silencing components to selectively target DNA for deletion. In Paramec...
journal_title：Developmental cell
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abstract：:Cytoplasmic dynein-1 is a minus-end-directed motor protein that transports cargo over long distances and organizes the intracellular microtubule (MT) network. How dynein motor activity is harnessed for these diverse functions remains unknown. Here, we have uncovered a mechanism for how processive dynein-dynactin compl...
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journal_title：Developmental cell
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journal_title：Developmental cell
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journal_title：Developmental cell
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journal_title：Developmental cell
pub_type： 评论,杂志文章
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journal_title：Developmental cell
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journal_title：Developmental cell
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journal_title：Developmental cell
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journal_title：Developmental cell
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journal_title：Developmental cell
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doi：10.1016/j.devcel.2005.02.010
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journal_title：Developmental cell
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journal_title：Developmental cell
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journal_title：Developmental cell
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journal_title：Developmental cell
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