... and is amenable to cell movements. Furthermore, normally β-tanycytes give rise to parenchymal cells via an intermediate population of α-tanycytes with transient amplifying cell characteristics. Loss of Fgf10 temporarily attenuates the amplification of β-tanycytes but also appears to delay the exit of their α...

..., adenohypophyseal placode precursors differ from the remaining preplacodal ectoderm as they are clustered at the midline, resembling other midline structures important for maintaining the bilateral organization of the neural tube. Adhesion Cell movement Midline Pituitary Chick RNA-seq Sp8...

... the equator. To elucidate the mechanisms underlying lens epithelial cell movement, we conducted time-lapse imaging of zebrafish lens epithelium. Lens epithelial cells do not intermingle but maintain their relative positions during development. Cell division induces epithelial rearrangement, which subsequently...

... movement Cell polarity Gastrulation Zebrafish Gastrulation is a fundamental morphogenetic process that entails a variety of evolutionarily conserved cell movement behaviors to generate germ layers and shape them into the animal body plan. Studies in different model organisms have demonstrated...

...Satu Kuure; Xuan Chi; Benson Lu; Frank Costantini Signaling by the Ret receptor tyrosine kinase promotes cell movements in the Wolffian duct that give rise to the first ureteric bud tip, initiating kidney development. Although the ETS transcription factors Etv4 and Etv5 are known to be required...

..., to be expected that a wider array of guidance molecules is required to guide the different mesodermal cell populations to their correct targets. Indeed, experiments in other organisms,especially frogs, fish and mice, have implicated PDGF signalling in particular in the control of mesodermal cell movement during...

... of the prospective prechordal plate in silberblick ( slb )/ wnt11 mutant embryos, in which E-cadherin-mediated coherence of cell movement is reduced. mil encodes Edg5, a sphingosine-1-phosphate (S1P) receptor belonging to a family of five G-protein-coupled receptors (S1PRs). S1P is a lipid signalling molecule...

... of Notch in proliferation and apoptotic events. We provide evidence for an essential role of the Notch signalling pathway during morphogenetic cell movements required for the formation of the foregut-associated proventriculus organ in the Drosophila embryo. We demonstrate that the activation of the Notch...

..., is required for the migration of cells forming the roof plate of the neural tube and, subsequently, for neural crest migration. These cells are properly determined but remain at their site of origin. Consistent with a possible role in cell movement, Vg1 RBP asymmetrically localizes to extended processes...

...Dirk Dormann; Cornelis J. Weijer Migration and behaviour of Dictyostelium slugs results from coordinated movement of its constituent cells. It has been proposed that cell movement is controlled by propagating waves of cAMP as during aggregation and in the mound. We report the existence of optical...

... the cell movements of gastrulation. Cell 98 , 559 -571. Kinder, S. J., Tsang, T. E., Quinlan, G. A., Hadjantonakis, A. K., Nagy, A. and Tam, P. P. L. ( 1999 ). The orderly allocation of mesodermal cells to the extraembryonic structures and the anteroposterior axis during gastrulation of the mouse...

... . J. Cell Biol . 127 , 1933 – 1944 . 10.1083/jcb.127.6.1933 Chen , T.-L. L. , Wolf , W. A. and Chisholm , R. L. ( 1998 ). Cell-type-specific rescue of myosin function during Dictyostelium development defines two distinct cell movements required for culmination...

...-2 Cell movement Cartilage differentiation Branchial arches Axolotl Neural crest The neural crest has long attracted the attention of developmental biologists because these cells migrate over extensive distances to reach a variety of stereotyped target sites and subsequently give rise...

.... The PAPC cell adhesion protein has two novel properties. First, it can promote cell movements in overexpression experiments. Second, the intracellular domain of PAPC is not required for cell adhesion and indeed seems to decrease cell adhesion mediated by PAPC, suggesting a mechanism for the release of cell...

... for correspondence (e-mail: r-chisholm@nwu.edu ) 13 07 1998 07 09 1998 © 1998 by Company of Biologists 1998 Myosin Dictyostelium Cell movement Culmination GFP Green Fluorescent Protein Dictyostelium amoebae respond to environmental stress by forming multicellular aggregates...

... oriented cell movements nor shape can account for this alignment. When the neural plate begins to differentiate, there is a gradual transition in the direction of cell division from AP to the mediolateral circumference (ML). ML divisions occur in both the ventral epidermis and dorsal neural plate...

... is first expressed at the sulcus limitans prior to the extensive cell movements that accompany neural tube formation, suggesting that it might serve to position cells at the sulcus limitans by counteracting their tendency to disperse during neurulation. We test this idea using an assay that measures...

... © 1997 by Company of Biologists 1997 epiboly epithelium morphogenesis Caenorhabditis elegans cell movement actin hypodermis The morphogenesis of epithelial tissues plays a fundamental role in animal development. Epithelial sheets fold, involute and migrate to give rise...

... gastrulation heart mesoderm epiblast cell position cell movement The immediate outcome of gastrulation is the formation of the definitive germ layer and the organisation of a general body plan, which serves as a blueprint for fetal development. The establishment of the body plan is accomplished...

... layers. This conclusion does not support the idea that the influence of the posterior marginal zone on the development of axial structures is due to it being the source of secondary hypoblast cells. © 1990 by Company of Biologists 1990 hypoblast germ layers gastrulation endoderm cell...