...Pavel Tsaytler; Jinhua Liu; Gaby Blaess; Dennis Schifferl; Jesse V. Veenvliet; Lars Wittler; Bernd Timmermann; Bernhard G. Herrmann; Frederic Koch ABSTRACT Cardiac lineage specification in the mouse is controlled by TGFβ and WNT signaling. From fly to fish, BMP has been identified...

... canonical Wnt signaling as a key signaling pathway primarily active in cranial neural crest (CNC)-derived mesenchymal cells surrounding soft palatal myogenic cells. Using Osr2-Cre;β-catenin fl/fl mice, we show that Wnt signaling is indispensable for mesenchymal cell proliferation and subsequently...

... a highly penetrant cleft palate phenotype, shortened limbs compared with wild type and perinatal lethality. Fzd2 D4 craniofacial tissues indicated decreased canonical Wnt signaling. In utero treatment with IIIC3a (a DKK inhibitor) normalized the limb lengths in Fzd2 D4 homozygotes. The in vivo replication...

... (WREs), to activate target gene transcription. Discovering the binding profile of β-catenin is therefore required to unambiguously assign direct targets of WNT signaling. Cleavage under targets and release using nuclease (CUT&RUN) has emerged as prime technique for mapping the binding profile of DNA...

... deletion showed that melanocytes and immune cells dynamically follow epithelial scale:interscale patterns. Importantly, disrupting Wnt-Lef1 function in keratinocytes caused melanocyte mislocalization to interscale epidermis, implicating canonical Wnt signaling in organizing the pigmentation pattern...

... be addressed with in vitro models of human embryos that are derived from embryonic stem cells (hESCs). Our previous work demonstrated that during early stages of hESC differentiation, cells chronicle signaling hierarchy. Only cells that have been exposed (primed) by WNT signaling can respond to subsequent...

... and barrier development, also functions as an integral unit in limb development. Wnt signaling Blood-brain barrier Limb development Mouse Howard Hughes Medical Institute Johns Hopkins University The vertebrate limb has been one of the premier systems...

... pathway have shown that tooth formation is partly inhibited in loss-of-function mutants, and gain-of-function mutants have perturbed tooth morphology. However, the stage at which Wnt signaling is first important in tooth formation remains unclear. Here, using an Fgf8 -promoter-driven, and therefore early...

... that have been conserved over hundreds of millions of years of evolution. These enhancer elements also each contain a conserved perfect consensus-binding site for Tcf7/Lef1, which are the Wnt-regulated transcription factors in cells, revealing how Hox factors and Wnt signaling could intersect to promote...

... for reproduction, but how this is achieved is unclear. Here, we show that canonical wingless-type MMTV integration site family (WNT) signaling is pivotal for pre-granulosa cell (pre-GC) activation during PFA. We identified several WNT ligands expressed in pre-GCs that act in an autocrine manner. Inhibition of WNT...

...-posterior axis patterning. Wnt signaling Axin Sea urchin Anterior-posterior axis Animal-vegetal axis Endomesoderm During embryonic development in most bilaterally symmetrical animals (Bilateria), the establishment of the anterior-posterior (AP) and dorsal-ventral (DV) axes are two early...

... by The Company of Biologists Ltd 2021 Summary: To model human birth defects caused by DDX3X mutations, we show that Xenopus DDX3 induces neural crest via the AKT-GSK3β axis, which promotes Wnt signaling and Snai1 stability. DDX3 Neural crest (NC) AKT GSK3β Wnt signaling Xenopus...

... of mesenchymal androgen signaling as cellular niches controlling prostate early development. Androgen signaling Prostate development Wnt signaling Sonic hedgehog signaling Mouse models The prostate develops from the endodermal urogenital sinus (UGS) that is derived from the caudal terminus...

... sustaining the tailbud-derived bipotential neuromesodermal progenitors. Hox genes Brachyury Wnt signaling Neuromesodermal progenitors A hallmark of early embryonic vertebrate development is the progressive formation of the posterior embryonic body from anterior to posterior ( Kimelman...

..., and live cell imaging reveals aberrant recycling of the WNT ligand-binding protein WLS and mis-trafficking to the lysosome for degradation. The importance of SNX3 in WNT signaling regulation is demonstrated by rescue of NT closure in Snx3 −/− embryos with a WNT agonist. The potential for SNX3 to function...

.... Deficiency of epithelial Erk1/2 results in defects in secretory cell differentiation as well as impaired mesenchymal cell proliferation and maturation. Deletion of Erk1/2 strongly activated Wnt signaling through both cell-autonomous and non-autonomous mechanisms. In epithelial cells, Erk1/2 depletion...

.... β cell differentiation Retinoic acid signaling Wnt signaling Pancreas development Diabetes δ cell specification Cell signaling pathways are used continuously throughout development and adulthood to mediate tissue interactions and precisely control gene expression. In particular...

... to proliferative cell division, the C. elegans RNT-1/BRO-1 transcriptional repressor opposes POP-1 TCF expression in seam stem cells, which turns POP-1-induced differentiation into self-renewal. C. elegans Wnt signaling Runx Asymmetric cell division Stem cell division mode Transcriptional regulation...

...George Britton; Idse Heemskerk; Rachel Hodge; Amina A. Qutub; Aryeh Warmflash ABSTRACT During development, the ectoderm is patterned by a combination of BMP and WNT signaling. Research in model organisms has provided substantial insight into this process; however, there are currently no systems...

... with ring patterns. Manipulation of FGF or Wnt signaling demonstrated that ‘ring’ genes are responsive to FGF signaling at the dorsal midline, whereas ‘horseshoe’ genes are predominantly regulated by Wnt signaling. We suggest that, in the absence of active β-catenin at the dorsal midline, the DNA-binding...