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  • 1
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    Regulation of beta-catenin signaling by the B56 subunit of protein phosphatase 2A (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-26
    Description: Dysregulation of Wnt-beta-catenin signaling disrupts axis formation in vertebrate embryos and underlies multiple human malignancies. The adenomatous polyposis coli (APC) protein, axin, and glycogen synthase kinase 3beta form a Wnt-regulated signaling complex that mediates the phosphorylation-dependent degradation of beta-catenin. A protein phosphatase 2A (PP2A) regulatory subunit, B56, interacted with APC in the yeast two-hybrid system. Expression of B56 reduced the abundance of beta-catenin and inhibited transcription of beta-catenin target genes in mammalian cells and Xenopus embryo explants. The B56-dependent decrease in beta-catenin was blocked by oncogenic mutations in beta-catenin or APC, and by proteasome inhibitors. B56 may direct PP2A to dephosphorylate specific components of the APC-dependent signaling complex and thereby inhibit Wnt signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seeling, J M -- Miller, J R -- Gil, R -- Moon, R T -- White, R -- Virshup, D M -- 3P30CA42014/CA/NCI NIH HHS/ -- R01 CA71074/CA/NCI NIH HHS/ -- T32CA09602/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2089-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84132, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10092233" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli Protein ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Line ; Cysteine Endopeptidases/metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Cytoskeletal Proteins/genetics/*metabolism ; Down-Regulation ; Genes, Reporter ; Glycogen Synthase Kinase 3 ; Glycogen Synthase Kinases ; Humans ; Leupeptins/pharmacology ; Multienzyme Complexes/metabolism ; Mutation ; Phosphoprotein Phosphatases/chemistry/genetics/*metabolism ; Phosphorylation ; Proteasome Endopeptidase Complex ; Protein Phosphatase 2 ; Proto-Oncogene Proteins/*metabolism ; *Signal Transduction ; *Trans-Activators ; Transcriptional Activation ; Transfection ; Tumor Cells, Cultured ; Wnt Proteins ; Xenopus ; Xenopus Proteins ; *Zebrafish Proteins ; beta Catenin
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    G protein signaling from activated rat frizzled-1 to the beta-catenin-Lef-Tcf pathway (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-02
    Description: The frizzled receptors, which mediate development and display seven hydrophobic, membrane-spanning segments, are cell membrane-localized. We constructed a chimeric receptor with the ligand-binding and transmembrane segments from the beta2-adrenergic receptor (beta2AR) and the cytoplasmic domains from rat Frizzled-1 (Rfz1). Stimulation of mouse F9 clones expressing the chimera (beta2AR-Rfz1) with the beta-adrenergic agonist isoproterenol stimulated stabilization of beta-catenin, activation of a beta-catenin-sensitive promoter, and formation of primitive endoderm. The response was blocked by inactivation of pertussis toxin-sensitive, heterotrimeric guanine nucleotide-binding proteins (G proteins) and by depletion of Galphaq and Galphao. Thus, G proteins are elements of Wnt/Frizzled-1 signaling to the beta-catenin-lymphoid-enhancer factor (LEF)-T cell factor (Tcf) pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, T -- DeCostanzo, A J -- Liu, X -- Wang Hy -- Hallagan, S -- Moon, R T -- Malbon, C C -- New York, N.Y. -- Science. 2001 Jun 1;292(5522):1718-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Pharmacology, Diabetes and Metabolic Diseases Research Center, University Medical Center, State University of New York at Stony Brook, Stony Brook, NY 11794-8651, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11387477" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cloning, Molecular ; Cytoskeletal Proteins/*metabolism ; Embryo, Nonmammalian/metabolism ; Endoderm/physiology ; Frizzled Receptors ; Gene Expression Regulation/drug effects ; Genes, Reporter ; Guanosine Triphosphate/metabolism ; Heterotrimeric GTP-Binding Proteins/*metabolism ; Isoproterenol/metabolism/pharmacology ; Mice ; Molecular Sequence Data ; Pertussis Toxin ; Propranolol/metabolism/pharmacology ; Proto-Oncogene Proteins/genetics/metabolism ; Receptors, Adrenergic, beta-2/chemistry/genetics/metabolism ; Receptors, G-Protein-Coupled ; Receptors, Neurotransmitter/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; *Signal Transduction ; *Trans-Activators ; Transcription Factors/*metabolism ; Transfection ; Tumor Cells, Cultured ; Virulence Factors, Bordetella/pharmacology ; Wnt Proteins ; Xenopus ; *Xenopus Proteins ; *Zebrafish Proteins ; beta Catenin
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Signaling of rat Frizzled-2 through phosphodiesterase and cyclic GMP (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-10
    Description: The Frizzled-2 receptor (Rfz2) from rat binds Wnt proteins and can signal by activating calcium release from intracellular stores. We show that wild-type Rfz2 and a chimeric receptor consisting of the extracellular and transmembrane portions of the beta2-adrenergic receptor with cytoplasmic domains of Rfz2 also signaled through modulation of cyclic guanosine 3',5'-monophosphate (cGMP). Activation of either receptor led to a decline in the intracellular concentration of cGMP, a process that was inhibited in cells treated with pertussis toxin, reduced by suppression of the expression of the heterotrimeric GTP-binding protein (G protein) transducin, and suppressed through inhibition of cGMP-specific phosphodiesterase (PDE) activity. Moreover, PDE inhibitors blocked Rfz2-induced calcium transients in zebrafish embryos. Thus, Frizzled-2 appears to couple to PDEs and calcium transients through G proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahumada, Adriana -- Slusarski, Diane C -- Liu, Xunxian -- Moon, Randall T -- Malbon, Craig C -- Wang, Hsien-yu -- T32-DK07521/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2002 Dec 6;298(5600):2006-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Pharmacology, Diabetes and Metabolic Diseases Research Center, University Medical Center, SUNY-Stony Brook, Stony Brook, NY 11794-8651, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12471263" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; CHO Cells ; Calcium/metabolism ; Cricetinae ; Culture Media, Conditioned ; Cyclic GMP/*metabolism ; Embryo, Nonmammalian/metabolism ; Frizzled Receptors ; Guanosine 5'-O-(3-Thiotriphosphate)/pharmacology ; Molecular Sequence Data ; Pertussis Toxin/pharmacology ; Phosphodiesterase Inhibitors/pharmacology ; Phosphoric Diester Hydrolases/*metabolism ; Rats ; Receptors, Adrenergic, beta-2/chemistry/metabolism ; Receptors, G-Protein-Coupled ; Receptors, Neurotransmitter/chemistry/*metabolism ; Recombinant Fusion Proteins/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; *Signal Transduction ; Transducin/genetics/metabolism ; Transfection ; Tumor Cells, Cultured ; Zebrafish
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    The promise and perils of Wnt signaling through beta-catenin (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-01
    Description: Wnt pathways are involved in the control of gene expression, cell behavior, cell adhesion, and cell polarity. In addition, they often operate in combination with other signaling pathways. The Wnt/beta-catenin pathway is the best studied of the Wnt pathways and is highly conserved through evolution. In this pathway, Wnt signaling inhibits the degradation of beta-catenin, which can regulate transcription of a number of genes. Some of the genes regulated are those associated with cancer and other diseases (for example, colorectal cancer and melanomas). As a result, components of the Wnt/beta-catenin pathway are promising targets in the search for therapeutic agents. Information about Wnt pathways is available both in canonical terms and at the species level. In addition to the canonical Wnt/beta-catenin pathway, information is now available for Drosophila, Caenorhabditis elegans, and Xenopus. The STKE Connections Maps for these pathways provide an important tool in accessing this large body of complex information.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moon, Randall T -- Bowerman, Bruce -- Boutros, Michael -- Perrimon, Norbert -- New York, N.Y. -- Science. 2002 May 31;296(5573):1644-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Pharmacology, and Center for Developmental Biology, University of Washington School of Medicine, Seattle, WA 98195, USA. rtmoon@u.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040179" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/physiology ; Cell Polarity ; Cytoskeletal Proteins/*metabolism ; Cytoskeleton/physiology ; *Drosophila Proteins ; Embryonic Development ; Embryonic and Fetal Development ; Gene Expression Regulation ; Humans ; Models, Biological ; Neoplasms ; Proto-Oncogene Proteins/*metabolism ; *Signal Transduction ; *Trans-Activators ; Transcription, Genetic ; Wnt Proteins ; Wnt1 Protein ; *Zebrafish Proteins ; beta Catenin
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Effect of wnt-1 and related proteins on gap junctional communication in Xenopus embryos (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-05-24
    Description: The proto-oncogene wnt-1 (previously referred to as int-1) is thought to be important in embryonic pattern formation although its mechanisms of action are unknown. Premature and increased expression of the Wnt-1 protein, achieved by injection of synthetic wnt-1 RNA into fertilized Xenopus eggs, enhanced gap junctional communication between ventral cells of the developing embryo. This result is consistent with the hypothesis that Wnt proteins activate a receptor-mediated signal transduction pathway and that gap junctional communication can be a target of this pathway. The effects of two Wnt-1-related proteins on gap junctional communication were also investigated: overexpression of Xwnt-8 increased gap junctional coupling in a manner similar to Wnt-1, whereas Xwnt-5A did not. These findings are consistent with the existence of multiple receptors for Wnt proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, D J -- Christian, J L -- Moon, R T -- DE-07023/DE/NIDCR NIH HHS/ -- KO4-AR01837/AR/NIAMS NIH HHS/ -- R01-AR40089/AR/NIAMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 May 24;252(5009):1173-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Washington, School of Medicine, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2031187" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastomeres/cytology/*physiology ; *Cell Communication ; Embryo, Nonmammalian/cytology/*physiology ; Female ; Intercellular Junctions/*physiology ; Male ; Protein-Tyrosine Kinases/genetics ; Proto-Oncogene Proteins/*genetics/physiology ; *Proto-Oncogenes ; Signal Transduction ; Sperm-Ovum Interactions ; Wnt Proteins ; Wnt1 Protein ; Xenopus ; Xenopus Proteins ; *Zebrafish Proteins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Functional genomic analysis of the Wnt-wingless signaling pathway (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-04-09
    Description: The Wnt-Wingless (Wg) pathway is one of a core set of evolutionarily conserved signaling pathways that regulates many aspects of metazoan development. Aberrant Wnt signaling has been linked to human disease. In the present study, we used a genomewide RNA interference (RNAi) screen in Drosophila cells to screen for regulators of the Wnt pathway. We identified 238 potential regulators, which include known pathway components, genes with functions not previously linked to this pathway, and genes with no previously assigned functions. Reciprocal-Best-Blast analyses reveal that 50% of the genes identified in the screen have human orthologs, of which approximately 18% are associated with human disease. Functional assays of selected genes from the cell-based screen in Drosophila, mammalian cells, and zebrafish embryos demonstrated that these genes have evolutionarily conserved functions in Wnt signaling. High-throughput RNAi screens in cultured cells, followed by functional analyses in model organisms, prove to be a rapid means of identifying regulators of signaling pathways implicated in development and disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DasGupta, Ramanuj -- Kaykas, Ajamete -- Moon, Randall T -- Perrimon, Norbert -- New York, N.Y. -- Science. 2005 May 6;308(5723):826-33. Epub 2005 Apr 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Howard Hughes Medical Institute (HHMI), Harvard Medical School, New Research Building, No. 339, 77 Avenue Louis Pasteur, Boston, MA 02115, USA. rdasgupt@genetics.med.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15817814" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cell Line ; Cloning, Molecular ; Computational Biology ; Cytoskeletal Proteins/metabolism ; Drosophila Proteins/chemistry/genetics/*metabolism ; Drosophila melanogaster/*genetics/metabolism ; Embryo, Nonmammalian/metabolism ; Embryonic Development ; Epistasis, Genetic ; *Gene Expression Regulation ; Genes, Insect ; Genes, Reporter ; *Genomics ; Mutation ; Phenotype ; Phosphorylation ; Protein Kinases/metabolism ; Proteins/metabolism ; Proto-Oncogene Proteins/genetics/*metabolism ; *RNA Interference ; *Signal Transduction ; Trans-Activators/metabolism ; Transcription Factors/chemistry/genetics/metabolism ; Transfection ; Wnt Proteins ; Wnt1 Protein ; Wnt3 Protein ; Zebrafish ; Zebrafish Proteins ; beta Catenin ; rab5 GTP-Binding Proteins/genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Wilms tumor suppressor WTX negatively regulates WNT/beta-catenin signaling (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-05-19
    Description: Aberrant WNT signal transduction is involved in many diseases. In colorectal cancer and melanoma, mutational disruption of proteins involved in the degradation of beta-catenin, the key effector of the WNT signaling pathway, results in stabilization of beta-catenin and, in turn, activation of transcription. We have used tandem-affinity protein purification and mass spectrometry to define the protein interaction network of the beta-catenin destruction complex. This assay revealed that WTX, a protein encoded by a gene mutated in Wilms tumors, forms a complex with beta-catenin, AXIN1, beta-TrCP2 (beta-transducin repeat-containing protein 2), and APC (adenomatous polyposis coli). Functional analyses in cultured cells, Xenopus, and zebrafish demonstrate that WTX promotes beta-catenin ubiquitination and degradation, which antagonize WNT/beta-catenin signaling. These data provide a possible mechanistic explanation for the tumor suppressor activity of WTX.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Major, Michael B -- Camp, Nathan D -- Berndt, Jason D -- Yi, Xianhua -- Goldenberg, Seth J -- Hubbert, Charlotte -- Biechele, Travis L -- Gingras, Anne-Claude -- Zheng, Ning -- Maccoss, Michael J -- Angers, Stephane -- Moon, Randall T -- New York, N.Y. -- Science. 2007 May 18;316(5827):1043-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Washington School of Medicine, Box 357370, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17510365" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Adenomatous Polyposis Coli Protein/metabolism ; Animals ; Axin Protein ; Cell Line ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Cytoplasm/metabolism ; Genes, Wilms Tumor ; Humans ; Kidney Neoplasms/genetics ; Protein Binding ; Protein Interaction Mapping ; Proteomics ; RNA Interference ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/metabolism ; *Signal Transduction ; Transduction, Genetic ; Tumor Suppressor Proteins/chemistry/genetics/*metabolism ; Ubiquitin/metabolism ; Ubiquitin-Protein Ligases/metabolism ; Wilms Tumor/genetics ; Wnt Proteins/*metabolism ; Xenopus Proteins ; Zebrafish ; beta Catenin/*metabolism ; beta-Transducin Repeat-Containing Proteins/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Wnt5a control of cell polarity and directional movement by polarized redistribution of adhesion receptors (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-04-19
    Description: Mechanisms by which Wnt pathways integrate the organization of receptors, organelles, and cytoskeletal proteins to confer cell polarity and directional cell movement are incompletely understood. We show that acute responses to Wnt5a involve recruitment of actin, myosin IIB, Frizzled 3, and melanoma cell adhesion molecule into an intracellular structure in a melanoma cell line. In the presence of a chemokine gradient, this Wnt-mediated receptor-actin-myosin polarity (W-RAMP) structure accumulates asymmetrically at the cell periphery, where it triggers membrane contractility and nuclear movement in the direction of membrane retraction. The process requires endosome trafficking, is associated with multivesicular bodies, and is regulated by Wnt5a through the small guanosine triphosphatases Rab4 and RhoB. Thus, cell-autonomous mechanisms allow Wnt5a to control cell orientation, polarity, and directional movement in response to positional cues from chemokine gradients.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3229220/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3229220/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Witze, Eric S -- Litman, Elizabeth S -- Argast, Gretchen M -- Moon, Randall T -- Ahn, Natalie G -- F32-CA105796/CA/NCI NIH HHS/ -- F32-CA112847/CA/NCI NIH HHS/ -- R01 CA118972/CA/NCI NIH HHS/ -- R01 CA118972-01A2/CA/NCI NIH HHS/ -- R01 CA118972-02/CA/NCI NIH HHS/ -- R01-CA118972/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 Apr 18;320(5874):365-9. doi: 10.1126/science.1151250.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO80309, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18420933" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Animals ; Antigens, CD146/metabolism ; Cell Line, Tumor ; Cell Membrane/metabolism ; Cell Movement ; *Cell Polarity ; Chemokine CXCL12/metabolism ; Chemotaxis ; Endosomes/metabolism ; Golgi Apparatus/metabolism ; Humans ; Melanoma/*metabolism/pathology ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Nonmuscle Myosin Type IIB/metabolism ; Proto-Oncogene Proteins/*metabolism ; *Signal Transduction ; Transplantation, Heterologous ; Wnt Proteins/*metabolism ; rab4 GTP-Binding Proteins/metabolism ; rhoB GTP-Binding Protein/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Cell biology. Making a point with Wnt signals (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berndt, J D -- Moon, R T -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Mar 22;339(6126):1388-9. doi: 10.1126/science.1236641.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Institute for Stem Cell and Regenerative Medicine, University of Washington School of Medicine, Seattle, WA 98109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23520097" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Asymmetric Cell Division ; *Cell Differentiation ; Embryonic Stem Cells/*cytology/*metabolism ; *Wnt Signaling Pathway ; Wnt3A Protein/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Electronic Resource
    Electronic Resource
    In pursuit of the functions of the Wnt family of developmental regulators: Insights from Xenopus laevis (1993)
    New York, NY : Wiley-Blackwell
    BioEssays 15 (1993), S. 91-97 
    Details
    ISSN: 0265-9247
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Wnts are a recently described family of secreted glycoproteins related to the Drosophila segment polarity gene, wingless, and to the proto-oncogene, int-1. Wnts are thought to function as developmental modulators, with signalling distances of only a few cell diameters. In Xenopus, at least six Wnts, including Xwnts-1, -3A, and -4, are expressed initially in the developing central nervous system, with some regions expressing multiple Xwnts. Xwnt-8 is expressed by mid-blastula stage, in ventral and lateral mesoderm. Xwnt-5A mRNAs are stored in the egg, and later are expressed throughout the embryo in both ectoderm and mesoderm, but with a pronounced enrichment in the head and tail. Recent studies in Xenopus have pursued the diverse roles of Xwnts in early development, the mechanisms by which Xwnts signal information between cells, and the cell physiological responses to Xwnt signals.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bies.950150204
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