Results 61 to 70 of about 10,115 (192)

The transcription factor Rreb1 regulates epithelial architecture, invasiveness, and vasculogenesis in early mouse embryos

open access: yeseLife, 2021
Ras-responsive element-binding protein 1 (Rreb1) is a zinc-finger transcription factor acting downstream of RAS signaling. Rreb1 has been implicated in cancer and Noonan-like RASopathies.
Sophie M Morgani   +4 more
doaj   +1 more source

β‐Catenin localization in the ctenophore Mnemiopsis leidyi suggests an ancestral role in cell adhesion and nuclear function

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The emergence of multicellularity in animals marks a pivotal evolutionary event, which was likely enabled by molecular innovations in the way cells adhere and communicate with one another. β‐Catenin is significant to this transition due to its dual role as both a structural component in the cadherin–catenin complex and as a ...
Brian M. Walters   +5 more
wiley   +1 more source

Ingression-type cell migration drives vegetal endoderm internalisation in the Xenopus gastrula

open access: yeseLife, 2017
During amphibian gastrulation, presumptive endoderm is internalised as part of vegetal rotation, a large-scale movement that encompasses the whole vegetal half of the embryo. It has been considered a gastrulation process unique to amphibians, but we show
Jason WH Wen, Rudolf Winklbauer
doaj   +1 more source

Interspecific comparisons of anuran embryonic epidermal landscapes and energetic trade‐offs in response to changes in salinity

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Freshwater salinization is an emerging stressor in amphibian populations, and embryonic stages are most vulnerable. To better understand the variation in embryonic osmoregulation, we challenged embryos of two phylogenetically diverse anuran species, Xenopus laevis and Lithobates (Rana) sylvaticus, along a gradient of non‐lethal ...
Kourtnie Whitfield, Erica J. Crespi
wiley   +1 more source

Micropattern differentiation of mouse pluripotent stem cells recapitulates embryo regionalized cell fate patterning

open access: yeseLife, 2018
During gastrulation epiblast cells exit pluripotency as they specify and spatially arrange the three germ layers of the embryo. Similarly, human pluripotent stem cells (PSCs) undergo spatially organized fate specification on micropatterned surfaces ...
Sophie M Morgani   +4 more
doaj   +1 more source

A stepwise model of reaction-diffusion and positional information governs self-organized human peri-gastrulation-like patterning

open access: yesDevelopment, 2017
How position-dependent cell fate acquisition occurs during embryogenesis is a central question in developmental biology. To study this process, we developed a defined, high-throughput assay to induce peri-gastrulation-associated patterning in ...
Mukul Tewary   +6 more
semanticscholar   +1 more source

Lineage labeling with zebrafish hand2 Cre and CreERT2 recombinase CRISPR knock‐ins

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The ability to generate endogenous Cre recombinase drivers using CRISPR‐Cas9 knock‐in technology allows lineage tracing, cell type‐specific gene studies, and in vivo validation of inferred developmental trajectories from phenotypic and gene expression analyses. This report describes endogenous zebrafish hand2 Cre and CreERT2 drivers
Zhitao Ming   +14 more
wiley   +1 more source

The Physical Mechanisms of Drosophila Gastrulation: Mesoderm and Endoderm Invagination

open access: yesGenetics, 2019
A critical juncture in early development is the partitioning of cells that will adopt different fates into three germ layers: the ectoderm, the mesoderm, and the endoderm.
Adam C. Martin
semanticscholar   +1 more source

Pre‐oviposition development of the brown anole (Anolis sagrei)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The brown anole, Anolis sagrei, has emerged as a representative squamate species for developmental studies during the past decades. Novel functional tools have been established to manipulate embryogenesis through genome editing or the introduction of small molecule inhibitors, and their effective use requires a thorough ...
Antonia Weberling   +9 more
wiley   +1 more source

Epithelial-Mesenchymal Transition Drives Three-Dimensional Morphogenesis in Mammalian Early Development

open access: yesFrontiers in Cell and Developmental Biology, 2021
From fertilization to onset of gastrulation, a mammalian embryo goes through several rounds of cellular morphogenesis resembling phenomena of epithelial-mesenchymal transition (EMT) and mesenchymal-epithelial transition (MET), collectively referred to as
Galym Ismagulov   +2 more
doaj   +1 more source

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