Abstract：
:Many patterns of cell and tissue organization are specified during development by gradients of morphogens, substances that assign different cell fates at different concentrations. Gradients form by morphogen transport from a localized site, but whether this occurs by simple diffusion or by more elaborate mechanisms is unclear. We attempt to resolve this controversy by analyzing recent data in ways that appropriately capture the complexity of systems in which transport, receptor interaction, endo- and exocytosis, and degradation occur together. We find that diffusive mechanisms of morphogen transport are much more plausible-and nondiffusive mechanisms much less plausible-than has generally been argued. Moreover, we show that a class of experiments, endocytic blockade, thought to effectively distinguish between diffusive and nondiffusive transport models actually fails to draw useful distinctions.
journal_name
Dev Celljournal_title
Developmental cellauthors
Lander AD,Nie Q,Wan FYdoi
10.1016/s1534-5807(02)00179-xkeywords:
subject
Has Abstractpub_date
2002-06-01 00:00:00pages
785-96issue
6eissn
1534-5807issn
1878-1551pii
S1534-5807(02)00179-Xjournal_volume
2pub_type
杂志文章abstract：:All complex multicellular organisms must solve the problem of generating diverse and appropriately patterned cell types. Asymmetric division, in which a single mother cell gives rise to daughters with distinct identities, is instrumental in the generation of cellular diversity and higher-level patterns. In animal syst...
journal_title：Developmental cell
pub_type： 杂志文章,评审
doi：10.1016/j.devcel.2009.05.014
更新日期：2009-06-01 00:00:00
abstract：:The neural crest is a transient, multipotent embryonic cell population in vertebrates giving rise to diverse cell types in adults via intermediate progenitors. The in vivo cell-fate potential and lineage segregation of these postembryonic progenitors is poorly understood, and it is unknown if and when the progenitors ...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2016.06.020
更新日期：2016-08-08 00:00:00
abstract：:How metabolism is rewired during embryonic development is still largely unknown, as it remains a major technical challenge to resolve metabolic activities or metabolite levels with spatiotemporal resolution. Here, we investigated metabolic changes during development of organogenesis-stage mouse embryos, focusing on th...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2017.01.015
更新日期：2017-02-27 00:00:00
abstract：:During early embryonic development, cells are organized as cohesive epithelial sheets that are continuously growing and remodeled without losing their integrity, giving rise to a wide array of tissue shapes. Here, using live imaging in chick embryo, we investigate how epithelial cells rearrange during gastrulation. We...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2016.01.007
更新日期：2016-02-08 00:00:00
abstract：:Merlin encoded by the Nf2 gene is a bona fide tumor suppressor that has been implicated in regulation of both the Hippo-Yap and Rac1-Pak1 pathways. Using genetically engineered murine liver models, we show that co-deletion of Rac1 with Nf2 blocks tumor initiation but paradoxically exacerbates hepatomegaly induced by N...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2016.09.027
更新日期：2016-11-21 00:00:00
abstract：:Boundary formation and epithelialization are crucial processes in the morphological segmentation of vertebrate somites. By a genetic screening procedure with zebrafish, we identified two genes, integrinalpha5 (itga5) and fibronectin (fn), required for these processes. Fibronectin proteins accumulate at somite boundari...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2005.03.006
更新日期：2005-04-01 00:00:00
abstract：:Regulating the osmotic pressure of our body fluids relies on osmosensory neurons that depolarize when their volume decreases. Recently in Neuron, Prager-Khoutorsky et al. (2014) report that this depolarization arises from direct interactions between the transient receptor potential channel TRPV1 and microtubules, whic...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2014.08.012
更新日期：2014-08-25 00:00:00
abstract：:In this issue of Developmental Cell, Schuster et al. (2014) describe the signals regulated by the bHLH transcription factor HEC1 during Arabidopsis stem cell maintenance. HEC1 acts antagonistically with other factors, integrating multiple cues to provide a balance between cellular differentiation and proliferation. ...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2014.02.006
更新日期：2014-02-24 00:00:00
abstract：:Here, we show that the liver-derived apolipoprotein M (ApoM) protects the lung and kidney from pro-fibrotic insults and that this circulating factor is attenuated in aged mice. Aged mouse hepatocytes exhibit transcriptional suppression of ApoM. This leads to reduced sphingosine-1-phosphate (S1P) signaling via the S1P ...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2020.05.024
更新日期：2020-06-22 00:00:00
abstract：:The regulated release of polypeptides has a central role in physiology, behavior, and development, but the mechanisms responsible for production of the large dense core vesicles (LDCVs) capable of regulated release have remained poorly understood. Recent work has implicated cytosolic adaptor protein AP-3 in the recrui...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2013.10.007
更新日期：2013-11-25 00:00:00
abstract：:Microglia are the primary immune cells in the brain. Under physiological conditions, they typically stay in a "resting" state, with ramified processes continuously extending to and retracting from surrounding neural tissues. Whether and how such highly dynamic resting microglia functionally interact with surrounding n...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2012.10.027
更新日期：2012-12-11 00:00:00
abstract：:Tumor extracellular vesicles (EVs) mediate the communication between tumor and stromal cells mostly to the benefit of tumor progression. Notably, tumor EVs travel in the bloodstream, reach distant organs, and locally modify the microenvironment. However, visualizing these events in vivo still faces major hurdles. Here...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2019.01.014
更新日期：2019-02-25 00:00:00
abstract：:The Hippo/Yki and RB/E2F pathways both regulate tissue growth by affecting cell proliferation and survival, but interactions between these parallel control systems are poorly defined. In this study, we demonstrate that interaction between Drosophila E2F1 and Sd disrupts Yki/Sd complex formation and thereby suppresses ...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2017.10.033
更新日期：2017-12-04 00:00:00
abstract：:Although it is well established that reactive oxygen species (ROS) can function as intracellular messengers, the mechanism of ROS dependent signaling is largely unknown (Rhee et al.,2005). In a recent paper in Nature Cell Biology, Funato et al. (2006) demonstrate that ROS can modulate signaling by the Wnt/beta-catenin...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2006.05.007
更新日期：2006-06-01 00:00:00
abstract：:Multivesicular bodies (MVBs) deliver cargo destined for degradation to the vacuole or lysosome. The ESCRT (endosomal sorting complex required for transport) pathway is a key mediator of MVB biogenesis, but it also plays critical roles in retroviral budding and cytokinetic abscission. Despite these diverse roles, the E...
journal_title：Developmental cell
pub_type： 杂志文章,评审
doi：10.1016/j.devcel.2011.05.015
更新日期：2011-07-19 00:00:00
abstract：:Apoptosis has been implicated in compensatory proliferation signaling (CPS), whereby dying cells induce proliferation in neighboring cells as a means to restore homeostasis. The nature of signaling between apoptotic cells and their neighboring cells remains largely unknown. Here we show that a fraction of apoptotic ce...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2017.05.014
更新日期：2017-06-19 00:00:00
abstract：:In a recent issue of Nature, Bohnert and Kenyon (2017) describe a signaling pathway that prevents transgenerational inheritance of cytoplasmic protein aggregates. Fertilizing sperm trigger aggregate clearance in the ovum by a microautophagy-like effector mechanism mediated by inter-organelle communication between lyso...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2017.12.016
更新日期：2018-01-08 00:00:00
abstract：:Neuroblastomas are associated with KIF1Bβ mutations within tumor suppressor region 1p36. In this issue of Developmental Cell, Li et al. (2016) show that KIF1Bβ binding releases calcineurin autoinhibition, leading to dephosphorylation of the DRP1 GTPase and subsequent mitochondrial fragmentation. KIF1Bβ impairment caus...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2016.01.005
更新日期：2016-01-25 00:00:00
abstract：:TC10, a Rho family GTPase, has been shown to play an important role in the exocytosis of GLUT4 and other proteins, primarily by tethering the vesicles at the plasma membrane. Using a newly developed probe based on fluorescence resonance energy transfer, we found that TC10 activity at tethered vesicles dropped immediat...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2006.07.008
更新日期：2006-09-01 00:00:00
abstract：:In a recent issue of Cell, Coureuil et al. (2010) show that type IV pili of Neisseria meningitidis-the causative bacterium of cerebrospinal meningitis-bind to the endothelial β2-adrenoceptor and elicit biased β-arrestin signaling resulting in microvilli formation and paracytotic bacterial migration. ...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2010.12.011
更新日期：2011-01-18 00:00:00
abstract：:In vertebrate embryos, retinoic acid (RA) synthesized in the mesoderm by Raldh2 emanates to the hindbrain neuroepithelium, where it induces anteroposterior (AP)-restricted Hox expression patterns and rhombomere segmentation. However, how appropriate spatiotemporal RA activity is generated in the hindbrain is poorly un...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2011.03.011
更新日期：2011-04-19 00:00:00
abstract：:Determination of left-right asymmetry in mouse embryos is established by a leftward fluid flow that is generated by clockwise rotation of node cilia. How node cilia achieve stable unidirectional rotation has remained unknown, however. Here we show that brief exposure to the microtubule-stabilizing drug paclitaxel (Tax...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2015.10.001
更新日期：2015-10-26 00:00:00
abstract：:Cells commit to mitosis by abruptly activating the mitotic cyclin-Cdk complexes. During Drosophila gastrulation, mitosis is associated with the transcriptional activation of cdc25(string), a phosphatase that activates Cdk1. Here, we demonstrate that the switch-like entry into mitosis observed in the Drosophila embryo ...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2012.01.019
更新日期：2012-04-17 00:00:00
abstract：:Morphogenesis of wavy epidermal pavement cells in plants has fascinated researchers for decades. A mechanical mechanism had been proposed in which the anticlinal cell walls, forming the in-plane cell borders, feature contiguous stiff and soft zones that generate waves upon stretching. We replicated this model as desig...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2019.05.001
更新日期：2019-07-01 00:00:00
abstract：:The developmental mechanisms that orchestrate differentiation of specific nephron segments are incompletely understood, and the factors that maintain their terminal differentiation after nephrogenesis remain largely unknown. Here, the transcription factor AP-2β is shown to be required for the differentiation of distal...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2020.05.026
更新日期：2020-08-10 00:00:00
abstract：:Tissue folding is a fundamental process that shapes epithelia into complex 3D organs. The initial positioning of folds is the foundation for the emergence of correct tissue morphology. Mechanisms forming individual folds have been studied, but the precise positioning of folds in complex, multi-folded epithelia is less...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2019.09.009
更新日期：2019-11-04 00:00:00
abstract：:The glucose transporter type 4 (glut4) is critical for metabolic homeostasis. Insulin regulates glut4 by modulating its expression on the cell surface. This regulation is mainly achieved by targeting the endocytic recycling of glut4. We identify general receptor for 3-phosphoinositides 1 (Grp1) as a guanine nucleotide...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/j.devcel.2012.03.004
更新日期：2012-06-12 00:00:00
abstract：:The Drosophila compound eye consists of approximately 750 independently functioning ommatidia, each containing two photoreceptor subpopulations. The outer photoreceptors participate in motion detection, while the inner photoreceptors contribute to color vision. Although the inner photoreceptors, R7 and R8, terminally ...
journal_title：Developmental cell
pub_type： 杂志文章
doi：10.1016/s1534-5807(03)00156-4
更新日期：2003-06-01 00:00:00
abstract：:The monoallelic expression of imprinted genes is regulated by DNA methylation marks that originate from the oocyte or sperm. Li et al. (2008) show in this issue of Developmental Cell that the KRAB zinc finger protein Zfp57 contributes to the embryonic maintenance of these imprints. At one locus, Zfp57 is also involved...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2008.09.006
更新日期：2008-10-01 00:00:00
abstract：:Signaling circuits often coordinate cellular membranes and actin filaments at distinct sites to direct cell behavior. In this issue of Developmental Cell, Bershteyn et al. outline how the molecular scaffold protein, MIM, which bends membranes and binds actin filaments, is at the middle of one such circuit to regulate ...
journal_title：Developmental cell
pub_type： 评论,杂志文章
doi：10.1016/j.devcel.2010.07.021
更新日期：2010-08-17 00:00:00
