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  1. Book ; Conference proceedings: Proceedings from an International Symposium on Interferon-Alpha Therapy in Malignant Diseases

    Aguet, Michel

    held in Athens, 1 - 4 November 1990

    (British journal of haematology ; 79, Suppl. 1)

    1991  

    Title variant Interferon-alpha therapy in malignant diseases
    Event/congress International Symposium on Interferon Alpha Therapy in Malignant Diseases (1990, Athen)
    Author's details ed. by M. Aguet
    Series title British journal of haematology ; 79, Suppl. 1
    Collection
    Keywords Neoplasms / drug therapy / congresses ; Interferon-Alpha / therapeutic use / congresses
    Language English
    Size IV, 104 S. : Ill., graph. Darst.
    Publisher Blackwell Scientific
    Publishing place Oxford u.a.
    Publishing country Great Britain
    Document type Book ; Conference proceedings
    HBZ-ID HT003926926
    Database Catalogue ZB MED Medicine, Health

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  2. Article ; Online: Cancer Metastasis: A Reappraisal of Its Underlying Mechanisms and Their Relevance to Treatment.

    Riggi, Nicolo / Aguet, Michel / Stamenkovic, Ivan

    Annual review of pathology

    2017  Volume 13, Page(s) 117–140

    Abstract: Metastases are responsible for the vast majority of cancer-related deaths, but, despite intense efforts to understand their underlying mechanisms with the goal of uncovering effective therapeutic targets, treatment of metastatic cancer has progressed ... ...

    Abstract Metastases are responsible for the vast majority of cancer-related deaths, but, despite intense efforts to understand their underlying mechanisms with the goal of uncovering effective therapeutic targets, treatment of metastatic cancer has progressed minimally. In this review, we examine the biological programs currently proposed to be key drivers of metastasis. On the basis of evidence from a growing body of research, we discuss to what extent the cellular and molecular mechanisms that are suggested to underlie cancer cell dissemination are specific to the metastatic process, as opposed to representing natural primary tumor progression. Our review highlights the contrast between the abundance of insight gained into the events that constitute the metastatic cascade and the paucity of therapeutic options.
    MeSH term(s) Humans ; Neoplasm Invasiveness/pathology ; Neoplasm Metastasis/pathology ; Neoplasms/pathology ; Neoplastic Stem Cells/pathology
    Language English
    Publishing date 2017-10-25
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2227429-7
    ISSN 1553-4014 ; 1553-4006
    ISSN (online) 1553-4014
    ISSN 1553-4006
    DOI 10.1146/annurev-pathol-020117-044127
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Epithelial Wnt secretion drives the progression of inflammation-induced colon carcinoma in murine model.

    Degirmenci, Bahar / Dincer, Cansu / Demirel, Habibe Cansu / Berkova, Linda / Moor, Andreas E / Kahraman, Abdullah / Hausmann, George / Aguet, Michel / Tuncbag, Nurcan / Valenta, Tomas / Basler, Konrad

    iScience

    2021  Volume 24, Issue 12, Page(s) 103369

    Abstract: Colon cancer is initiated by stem cells that escape the strict control. This process is often driven through aberrant activation of Wnt signaling by mutations in components acting downstream of the receptor complex that unfetter tumor cells from the need ...

    Abstract Colon cancer is initiated by stem cells that escape the strict control. This process is often driven through aberrant activation of Wnt signaling by mutations in components acting downstream of the receptor complex that unfetter tumor cells from the need for Wnts. Here we describe a class of colon cancer that does not depend on mutated core components of the Wnt pathway. Genetically blocking Wnt secretion from epithelial cells of such tumors results in apoptosis, reduced expression of colon cancer markers, followed by enhanced tumor differentiation. In contrast to the normal colonic epithelium, such tumor cells autosecrete Wnts to maintain their uncontrolled proliferative behavior. In humans, we determined certain cases of colon cancers in which the Wnt pathway is hyperactive, but not through mutations in its core components. Our findings illuminate the path in therapy to find further subtypes of Wnt-dependent colon cancer that might be responsive to Wnt secretion inhibitors.
    Language English
    Publishing date 2021-10-28
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2021.103369
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: TBX3 acts as tissue-specific component of the Wnt/β-catenin transcriptional complex.

    Zimmerli, Dario / Borrelli, Costanza / Jauregi-Miguel, Amaia / Söderholm, Simon / Brütsch, Salome / Doumpas, Nikolaos / Reichmuth, Jan / Murphy-Seiler, Fabienne / Aguet, MIchel / Basler, Konrad / Moor, Andreas E / Cantù, Claudio

    eLife

    2020  Volume 9

    Abstract: BCL9 and PYGO are β-catenin cofactors that enhance the transcription of Wnt target genes. They have been proposed as therapeutic targets to diminish Wnt signaling output in intestinal malignancies. Here we find that, in colorectal cancer cells and in ... ...

    Abstract BCL9 and PYGO are β-catenin cofactors that enhance the transcription of Wnt target genes. They have been proposed as therapeutic targets to diminish Wnt signaling output in intestinal malignancies. Here we find that, in colorectal cancer cells and in developing mouse forelimbs, BCL9 proteins sustain the action of β-catenin in a largely PYGO-independent manner. Our genetic analyses implied that BCL9 necessitates other interaction partners in mediating its transcriptional output. We identified the transcription factor TBX3 as a candidate tissue-specific member of the β-catenin transcriptional complex. In developing forelimbs, both TBX3 and BCL9 occupy a large number of Wnt-responsive regulatory elements, genome-wide. Moreover, mutations in
    MeSH term(s) Animals ; Female ; HCT116 Cells ; Humans ; Male ; Mice ; Organ Specificity ; T-Box Domain Proteins/genetics ; T-Box Domain Proteins/metabolism ; Transcription Factors/genetics ; Transcription Factors/metabolism ; Tumor Cells, Cultured ; Wnt Signaling Pathway ; Zebrafish
    Chemical Substances BCL9 protein, mouse ; T-Box Domain Proteins ; TBX3 protein, human ; Tbx3 protein, mouse ; Transcription Factors
    Language English
    Publishing date 2020-08-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.58123
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Pax6-dependent, but β-catenin-independent, function of Bcl9 proteins in mouse lens development.

    Cantù, Claudio / Zimmerli, Dario / Hausmann, George / Valenta, Tomas / Moor, Andreas / Aguet, Michel / Basler, Konrad

    Genes & development

    2014  Volume 28, Issue 17, Page(s) 1879–1884

    Abstract: Bcl9 and Bcl9l (Bcl9/9l) encode Wnt signaling components that mediate the interaction between β-catenin and Pygopus (Pygo) via two evolutionarily conserved domains, HD1 and HD2, respectively. We generated mouse strains lacking these domains to probe the ... ...

    Abstract Bcl9 and Bcl9l (Bcl9/9l) encode Wnt signaling components that mediate the interaction between β-catenin and Pygopus (Pygo) via two evolutionarily conserved domains, HD1 and HD2, respectively. We generated mouse strains lacking these domains to probe the β-catenin-dependent and β-catenin-independent roles of Bcl9/9l and Pygo during mouse development. While lens development is critically dependent on the presence of the HD1 domain, it is not affected by the lack of the HD2 domain, indicating that Bcl9/9l act in this context in a β-catenin-independent manner. Furthermore, we uncover a new regulatory circuit in which Pax6, the master regulator of eye development, directly activates Bcl9/9l transcription.
    MeSH term(s) Animals ; Cells, Cultured ; Eye Proteins/genetics ; Eye Proteins/metabolism ; Gene Expression Regulation, Developmental ; Gene Knock-In Techniques ; Homeodomain Proteins/genetics ; Homeodomain Proteins/metabolism ; Intracellular Signaling Peptides and Proteins/metabolism ; Lens, Crystalline/embryology ; Mice ; Mice, Inbred C57BL ; Neoplasm Proteins/genetics ; Neoplasm Proteins/metabolism ; PAX6 Transcription Factor ; Paired Box Transcription Factors/genetics ; Paired Box Transcription Factors/metabolism ; Protein Structure, Tertiary/genetics ; Repressor Proteins/genetics ; Repressor Proteins/metabolism ; Signal Transduction ; Transcription Factors/metabolism ; Wnt Proteins/metabolism ; beta Catenin/genetics ; beta Catenin/metabolism
    Chemical Substances BCL9 protein, human ; BCL9L protein, mouse ; Eye Proteins ; Homeodomain Proteins ; Intracellular Signaling Peptides and Proteins ; Neoplasm Proteins ; PAX6 Transcription Factor ; PAX6 protein, human ; Paired Box Transcription Factors ; Pax6 protein, mouse ; Repressor Proteins ; Transcription Factors ; Wnt Proteins ; beta Catenin ; pygopus 2 protein, mouse
    Language English
    Publishing date 2014-09-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 806684-x
    ISSN 1549-5477 ; 0890-9369
    ISSN (online) 1549-5477
    ISSN 0890-9369
    DOI 10.1101/gad.246140.114
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Epithelial Wnt secretion drives the progression of inflammation-induced colon carcinoma in murine model

    Degirmenci, Bahar / Dincer, Cansu / Demirel, Habibe Cansu / Berkova, Linda / Moor, Andreas E. / Kahraman, Abdullah / Hausmann, George / Aguet, Michel / Tuncbag, Nurcan / Valenta, Tomas / Basler, Konrad

    iScience, 24 (12)

    2021  

    Abstract: Colon cancer is initiated by stem cells that escape the strict control. This process is often driven through aberrant activation of Wnt signaling by mutations in components acting downstream of the receptor complex that unfetter tumor cells from the need ...

    Abstract Colon cancer is initiated by stem cells that escape the strict control. This process is often driven through aberrant activation of Wnt signaling by mutations in components acting downstream of the receptor complex that unfetter tumor cells from the need for Wnts. Here we describe a class of colon cancer that does not depend on mutated core components of the Wnt pathway. Genetically blocking Wnt secretion from epithelial cells of such tumors results in apoptosis, reduced expression of colon cancer markers, followed by enhanced tumor differentiation. In contrast to the normal colonic epithelium, such tumor cells autosecrete Wnts to maintain their uncontrolled proliferative behavior. In humans, we determined certain cases of colon cancers in which the Wnt pathway is hyperactive, but not through mutations in its core components. Our findings illuminate the path in therapy to find further subtypes of Wnt-dependent colon cancer that might be responsive to Wnt secretion inhibitors.

    ISSN:2589-0042
    Keywords Molecular physiology ; Immunology ; Cell biology ; Cancer ; Omics
    Subject code 570
    Language English
    Publishing date 2021-12-17
    Publisher Elsevier
    Publishing country ch
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: The Pygo2-H3K4me2/3 interaction is dispensable for mouse development and Wnt signaling-dependent transcription.

    Cantù, Claudio / Valenta, Tomas / Hausmann, George / Vilain, Nathalie / Aguet, Michel / Basler, Konrad

    Development (Cambridge, England)

    2013  Volume 140, Issue 11, Page(s) 2377–2386

    Abstract: Pygopus has been discovered as a fundamental Wnt signaling component in Drosophila. The mouse genome encodes two Pygopus homologs, Pygo1 and Pygo2. They serve as context-dependent β-catenin coactivators, with Pygo2 playing the more important role. All ... ...

    Abstract Pygopus has been discovered as a fundamental Wnt signaling component in Drosophila. The mouse genome encodes two Pygopus homologs, Pygo1 and Pygo2. They serve as context-dependent β-catenin coactivators, with Pygo2 playing the more important role. All Pygo proteins share a highly conserved plant homology domain (PHD) that allows them to bind di- and trimethylated lysine 4 of histone H3 (H3K4me2/3). Despite the structural conservation of this domain, the relevance of histone binding for the role of Pygo2 as a Wnt signaling component and as a reader of chromatin modifications remains speculative. Here we generate a knock-in mouse line, homozygous for a Pygo2 mutant defective in chromatin binding. We show that even in the absence of the potentially redundant Pygo1, Pygo2 does not require the H3K4me2/3 binding activity to sustain its function during mouse development. Indeed, during tissue homeostasis, Wnt/β-catenin-dependent transcription is largely unaffected. However, the Pygo2-chromatin interaction is relevant in testes, where, importantly, Pygo2 binds in vivo to the chromatin in a PHD-dependent manner. Its presence on regulatory regions does not affect the transcription of nearby genes; rather, it is important for the recruitment of the histone acetyltransferase Gcn5 to chromatin, consistent with a testis-specific and Wnt-unrelated role for Pygo2 as a chromatin remodeler.
    MeSH term(s) Animals ; Chromatin Assembly and Disassembly ; Drosophila Proteins/genetics ; Drosophila Proteins/metabolism ; Drosophila melanogaster/genetics ; Drosophila melanogaster/physiology ; Female ; Fertility ; Gene Expression Regulation, Developmental ; Gene Knock-In Techniques ; Genotype ; Histones/metabolism ; Intracellular Signaling Peptides and Proteins/genetics ; Intracellular Signaling Peptides and Proteins/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Protein Interaction Domains and Motifs ; Testis/metabolism ; Wnt Signaling Pathway ; p300-CBP Transcription Factors/metabolism
    Chemical Substances Drosophila Proteins ; Histones ; Intracellular Signaling Peptides and Proteins ; pygo protein, Drosophila ; pygopus 2 protein, mouse ; p300-CBP Transcription Factors (EC 2.3.1.48) ; p300-CBP-associated factor (EC 2.3.1.48)
    Language English
    Publishing date 2013-05-01
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 90607-4
    ISSN 1477-9129 ; 0950-1991
    ISSN (online) 1477-9129
    ISSN 0950-1991
    DOI 10.1242/dev.093591
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Mutations in

    Cantù, Claudio / Felker, Anastasia / Zimmerli, Dario / Prummel, Karin D / Cabello, Elena M / Chiavacci, Elena / Méndez-Acevedo, Kevin M / Kirchgeorg, Lucia / Burger, Sibylle / Ripoll, Jorge / Valenta, Tomas / Hausmann, George / Vilain, Nathalie / Aguet, Michel / Burger, Alexa / Panáková, Daniela / Basler, Konrad / Mosimann, Christian

    Genes & development

    2018  Volume 32, Issue 21-22, Page(s) 1443–1458

    Abstract: Bcl9 and Pygopus (Pygo) are obligate Wnt/β-catenin cofactors ... ...

    Abstract Bcl9 and Pygopus (Pygo) are obligate Wnt/β-catenin cofactors in
    MeSH term(s) Adaptor Proteins, Signal Transducing ; Animals ; Heart/embryology ; Heart Defects, Congenital/genetics ; Intracellular Signaling Peptides and Proteins/genetics ; Mice ; Mutation ; Myocardium/metabolism ; Transcription Factors/genetics ; Wnt Signaling Pathway ; Zebrafish/embryology ; Zebrafish/genetics ; Zebrafish Proteins/genetics ; beta Catenin/metabolism
    Chemical Substances Adaptor Proteins, Signal Transducing ; BCL9 protein, mouse ; BCL9L protein, mouse ; Intracellular Signaling Peptides and Proteins ; Pygo1 protein, mouse ; Transcription Factors ; Zebrafish Proteins ; beta Catenin ; pygopus 2 protein, mouse
    Language English
    Publishing date 2018-10-26
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 806684-x
    ISSN 1549-5477 ; 0890-9369
    ISSN (online) 1549-5477
    ISSN 0890-9369
    DOI 10.1101/gad.315531.118
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Wnt Ligands Secreted by Subepithelial Mesenchymal Cells Are Essential for the Survival of Intestinal Stem Cells and Gut Homeostasis.

    Valenta, Tomas / Degirmenci, Bahar / Moor, Andreas E / Herr, Patrick / Zimmerli, Dario / Moor, Matthias B / Hausmann, George / Cantù, Claudio / Aguet, Michel / Basler, Konrad

    Cell reports

    2016  Volume 15, Issue 5, Page(s) 911–918

    Abstract: Targeting of Wnt signaling represents a promising anti-cancer therapy. However, the consequences of systemically attenuating the Wnt pathway in an adult organism are unknown. Here, we globally prevent Wnt secretion by genetically ablating Wntless. We ... ...

    Abstract Targeting of Wnt signaling represents a promising anti-cancer therapy. However, the consequences of systemically attenuating the Wnt pathway in an adult organism are unknown. Here, we globally prevent Wnt secretion by genetically ablating Wntless. We find that preventing Wnt signaling in the entire body causes mortality due to impaired intestinal homeostasis. This is caused by the loss of intestinal stem cells. Reconstitution of Wnt/β-catenin signaling via delivery of external Wnt ligands prolongs the survival of intestinal stem cells and reveals the essential role of extra-epithelial Wnt ligands for the renewal of the intestinal epithelium. Wnt2b is a key extra-epithelial Wnt ligand capable of promoting Wnt/β-catenin signaling and intestinal homeostasis. Wnt2b is secreted by subepithelial mesenchymal cells that co-express either Gli1 or Acta2. Subepithelial mesenchymal cells expressing high levels of Wnt2b are predominantly Gli1 positive.
    MeSH term(s) Animals ; Cell Self Renewal ; Cell Survival ; Epithelial Cells/secretion ; Homeostasis ; Intestinal Mucosa/cytology ; Ligands ; Mesenchymal Stromal Cells/secretion ; Mice ; Wnt Proteins/metabolism ; beta Catenin/metabolism
    Chemical Substances Ligands ; Wnt Proteins ; beta Catenin
    Language English
    Publishing date 2016--03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2016.03.088
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The fusion protein SS18-SSX1 employs core Wnt pathway transcription factors to induce a partial Wnt signature in synovial sarcoma.

    Cironi, Luisa / Petricevic, Tanja / Fernandes Vieira, Victor / Provero, Paolo / Fusco, Carlo / Cornaz, Sandrine / Fregni, Giulia / Letovanec, Igor / Aguet, Michel / Stamenkovic, Ivan

    Scientific reports

    2016  Volume 6, Page(s) 22113

    Abstract: Expression of the SS18/SYT-SSX fusion protein is believed to underlie the pathogenesis of synovial sarcoma (SS). Recent evidence suggests that deregulation of the Wnt pathway may play an important role in SS but the mechanisms whereby SS18-SSX might ... ...

    Abstract Expression of the SS18/SYT-SSX fusion protein is believed to underlie the pathogenesis of synovial sarcoma (SS). Recent evidence suggests that deregulation of the Wnt pathway may play an important role in SS but the mechanisms whereby SS18-SSX might affect Wnt signaling remain to be elucidated. Here, we show that SS18/SSX tightly regulates the elevated expression of the key Wnt target AXIN2 in primary SS. SS18-SSX is shown to interact with TCF/LEF, TLE and HDAC but not β-catenin in vivo and to induce Wnt target gene expression by forming a complex containing promoter-bound TCF/LEF and HDAC but lacking β-catenin. Our observations provide a tumor-specific mechanistic basis for Wnt target gene induction in SS that can occur in the absence of Wnt ligand stimulation.
    MeSH term(s) Animals ; Axin Protein/genetics ; Axin Protein/metabolism ; Blotting, Western ; Cell Line ; Cell Line, Tumor ; Gene Expression Profiling/methods ; Histone Deacetylases/genetics ; Histone Deacetylases/metabolism ; Humans ; Mice ; Microscopy, Confocal ; Oncogene Proteins, Fusion/genetics ; Oncogene Proteins, Fusion/metabolism ; RNA Interference ; Repressor Proteins/genetics ; Repressor Proteins/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Sarcoma, Synovial/genetics ; Sarcoma, Synovial/metabolism ; Sarcoma, Synovial/pathology ; TCF Transcription Factors/genetics ; TCF Transcription Factors/metabolism ; Transcription Factors/genetics ; Transcription Factors/metabolism ; Wnt Signaling Pathway/genetics ; beta Catenin/genetics ; beta Catenin/metabolism
    Chemical Substances AXIN2 protein, human ; Axin Protein ; Oncogene Proteins, Fusion ; Repressor Proteins ; SS18-SSX1 fusion protein ; TCF Transcription Factors ; TLE1 protein, human ; Transcription Factors ; beta Catenin ; Histone Deacetylases (EC 3.5.1.98)
    Language English
    Publishing date 2016-02-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/srep22113
    Database MEDical Literature Analysis and Retrieval System OnLINE

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