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Thymine DNA Glycosylase Is Essential for Active DNA Demethylation by Linked Deamination-Base Excision Repair
DNA methylation is a major epigenetic mechanism for gene silencing. Whereas methyltransferases mediate cytosine methylation, it is less clear how unmethylated regions in mammalian genomes areExpand
Ectodermal Wnt3/beta-catenin signaling is required for the establishment and maintenance of the apical ectodermal ridge.
The formation of the apical ectodermal ridge (AER) is critical for the distal outgrowth and patterning of the vertebrate limb. Recent work in the chick has demonstrated that interplay between the WntExpand
The conditional inactivation of the β-catenin gene in endothelial cells causes a defective vascular pattern and increased vascular fragility
Using the Cre/loxP system we conditionally inactivated β-catenin in endothelial cells. We found that early phases of vasculogenesis and angiogenesis were not affected in mutant embryos; however,Expand
N-Cadherin Transsynaptically Regulates Short-Term Plasticity at Glutamatergic Synapses in Embryonic Stem Cell-Derived Neurons
The cell adhesion molecule N-cadherin has been proposed to regulate synapse formation in mammalian central neurons. This is based on its synaptic localization enabling alignment of presynaptic andExpand
A Portrait of AKT Kinases: Human Cancer and Animal Models Depict a Family with Strong Individualities
More than a decade after their discovery, the three AKT kinase family members have emerged as central players in the signaling cascades that regulate cell growth, proliferation, survival and variousExpand
N-cadherin deficiency impairs pericyte recruitment, and not endothelial differentiation or sprouting, in embryonic stem cell-derived angiogenesis.
Endothelial cells express two classical cadherins, VE-cadherin and N-cadherin. VE-cadherin is absolutely required for vascular morphogenesis, but N-cadherin is thought to participate in vesselExpand
Cell autonomous sorting and surface positioning in the formation of primitive endoderm in embryoid bodies
The differentiation and formation of the primitive endoderm in early embryos can be mimicked in vitro by the aggregation of embryonic stem cells to form embryoid bodies. We present morphologicalExpand
Cell adhesive affinity does not dictate primitive endoderm segregation and positioning during murine embryoid body formation
The classical cell sorting experiments undertaken by Townes and Holtfreter described the intrinsic propensity of dissociated embryonic cells to self‐organize and reconcile into their originalExpand
Involvement of cadherins 7 and 20 in mouse embryogenesis and melanocyte transformation
We have determined the expression profiles of cdh7, and the related cdh20 during development. Both transcripts are found in the adult brain, but only cadherin-20 mRNA was detected duringExpand
IGF-II induces rapid β-catenin relocation to the nucleus during epithelium to mesenchyme transition
The epithelium to mesenchyme transition is thought to play a fundamental role during embryonic development and tumor progression. Loss of cell–cell adhesion and modification of both cell morphologyExpand
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