Now showing 1 - 4 of 4
  • 2017Journal Article
    [["dc.bibliographiccitation.artnumber","135"],["dc.bibliographiccitation.journal","Frontiers in Oncology"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Bayerlová, Michaela"],["dc.contributor.author","Menck, Kerstin"],["dc.contributor.author","Klemm, Florian"],["dc.contributor.author","Wolff, Alexander"],["dc.contributor.author","Pukrop, Tobias"],["dc.contributor.author","Binder, Claudia"],["dc.contributor.author","Beißbarth, Tim"],["dc.contributor.author","Bleckmann, Annalen"],["dc.date.accessioned","2019-07-09T11:43:27Z"],["dc.date.available","2019-07-09T11:43:27Z"],["dc.date.issued","2017"],["dc.description.abstract","Breast cancer is a heterogeneous disease and has been classified into five molecular subtypes based on gene expression profiles. Signaling processes linked to different breast cancer molecular subtypes and different clinical outcomes are still poorly understood. Aberrant regulation of Wnt signaling has been implicated in breast cancer progression. In particular Ror1/2 receptors and several other members of the non-canonical Wnt signaling pathway were associated with aggressive breast cancer behavior. However, Wnt signals are mediated via multiple complex pathways, and it is clinically important to determine which particular Wnt cascades, including their domains and targets, are deregulated in poor prognosis breast cancer. To investigate activation and outcome of the Ror2-dependent non-canonical Wnt signaling pathway, we overexpressed the Ror2 receptor in MCF-7 and MDA-MB231 breast cancer cells, stimulated the cells with its ligand Wnt5a, and we knocked-down Ror1 in MDA-MB231 cells. We measured the invasive capacity of perturbed cells to assess phenotypic changes, and mRNA was profiled to quantify gene expression changes. Differentially expressed genes were integrated into a literature-based non-canonical Wnt signaling network. The results were further used in the analysis of an independent dataset of breast cancer patients with metastasis-free survival annotation. Overexpression of the Ror2 receptor, stimulation with Wnt5a, as well as the combination of both perturbations enhanced invasiveness of MCF-7 cells. The expression-responsive targets of Ror2 overexpression in MCF-7 induced a Ror2/Wnt module of the non-canonical Wnt signaling pathway. These targets alter regulation of other pathways involved in cell remodeling processing and cell metabolism. Furthermore, the genes of the Ror2/Wnt module were assessed as a gene signature in patient gene expression data and showed an association with clinical outcome. In summary, results of this study indicate a role of a newly defined Ror2/Wnt module in breast cancer progression and present a link between Ror2 expression and increased cell invasiveness."],["dc.identifier.doi","10.3389/fonc.2017.00135"],["dc.identifier.pmid","28695110"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14538"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58892"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","Frontiers Media S.A."],["dc.relation.eissn","2234-943X"],["dc.relation.issn","2234-943X"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","610"],["dc.title","Ror2 Signaling and Its Relevance in Breast Cancer Progression."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article
    [["dc.bibliographiccitation.artnumber","1378056"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Extracellular Vesicles"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Menck, Kerstin"],["dc.contributor.author","Sönmezer, Can"],["dc.contributor.author","Worst, Thomas Stefan"],["dc.contributor.author","Schulz, Matthias"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Streit, Frank"],["dc.contributor.author","Erdmann, Gerrit"],["dc.contributor.author","Kling, Simon"],["dc.contributor.author","Boutros, Michael"],["dc.contributor.author","Binder, Claudia"],["dc.contributor.author","Gross, Julia Christina"],["dc.date.accessioned","2019-07-09T11:45:57Z"],["dc.date.available","2019-07-09T11:45:57Z"],["dc.date.issued","2017"],["dc.description.abstract","Extracellular vesicles (EVs) are membrane particles secreted from cells into all body fluids. Several EV populations exist differing in size and cellular origin. Using differential centrifugation EVs pelleting at 14,000 g (\"microvesicles\" (MV)) and 100,000 g (\"exosomes\") are distinguishable by protein markers. Neutral sphingomyelinase (nSMase) inhibition has been shown to inhibit exosome release from cells and has since been used to study their functional implications. How nSMases (also known as SMPD2 and SMPD3) affect the basal secretion of MVs is unclear. Here we investigated how SMPD2/3 impact both EV populations. SMPD2/3 inhibition by GW4869 or RNAi decreases secretion of exosomes, but also increases secretion of MVs from the plasma membrane. Both populations differ significantly in metabolite composition and Wnt proteins are specifically loaded onto MVs under these conditions. Taken together, our data reveal a novel regulatory function of SMPD2/3 in vesicle budding from the plasma membrane and clearly suggest that - despite the different vesicle biogenesis - the routes of vesicular export are adaptable."],["dc.identifier.doi","10.1080/20013078.2017.1378056"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15354"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59345"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2001-3078"],["dc.rights","CC BY-NC 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc/4.0"],["dc.subject.ddc","610"],["dc.title","Neutral sphingomyelinases control extracellular vesicles budding from the plasma membrane"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article
    [["dc.bibliographiccitation.firstpage","3170"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","International Journal of Cancer"],["dc.bibliographiccitation.lastpage","3183"],["dc.bibliographiccitation.volume","146"],["dc.contributor.author","Blazquez, Raquel"],["dc.contributor.author","Rietkötter, Eva"],["dc.contributor.author","Wenske, Britta"],["dc.contributor.author","Wlochowitz, Darius"],["dc.contributor.author","Sparrer, Daniela"],["dc.contributor.author","Vollmer, Elena"],["dc.contributor.author","Müller, Gunnar"],["dc.contributor.author","Seegerer, Julia"],["dc.contributor.author","Sun, Xueni"],["dc.contributor.author","Dettmer, Katja"],["dc.contributor.author","Barrantes‐Freer, Alonso"],["dc.contributor.author","Stange, Lena"],["dc.contributor.author","Utpatel, Kirsten"],["dc.contributor.author","Bleckmann, Annalen"],["dc.contributor.author","Treiber, Hannes"],["dc.contributor.author","Bohnenberger, Hanibal"],["dc.contributor.author","Lenz, Christof"],["dc.contributor.author","Schulz, Matthias"],["dc.contributor.author","Reimelt, Christian"],["dc.contributor.author","Hackl, Christina"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Büyüktas, Deram"],["dc.contributor.author","Siam, Laila"],["dc.contributor.author","Balkenhol, Marko"],["dc.contributor.author","Stadelmann, Christine"],["dc.contributor.author","Kube, Dieter"],["dc.contributor.author","Krahn, Michael P."],["dc.contributor.author","Proescholdt, Martin A."],["dc.contributor.author","Riemenschneider, Markus J."],["dc.contributor.author","Evert, Matthias"],["dc.contributor.author","Oefner, Peter J."],["dc.contributor.author","Klein, Chistoph A."],["dc.contributor.author","Hanisch, Uwe K."],["dc.contributor.author","Binder, Claudia"],["dc.contributor.author","Pukrop, Tobias"],["dc.date.accessioned","2019-12-09T11:26:05Z"],["dc.date.accessioned","2021-10-27T13:21:49Z"],["dc.date.available","2019-12-09T11:26:05Z"],["dc.date.available","2021-10-27T13:21:49Z"],["dc.date.issued","2020"],["dc.description.abstract","More than half of all brain metastases show infiltrating rather than displacing growth at the macro-metastasis/organ parenchyma interface (MMPI), a finding associated with shorter survival. The lymphoid enhancer-binding factor-1 (LEF1) is an epithelial-mesenchymal transition (EMT) transcription factor that is commonly overexpressed in brain-colonizing cancer cells. Here, we overexpressed LEF1 in an in vivo breast cancer brain colonization model. It shortened survival, albeit without engaging EMT at the MMPI. By differential proteome analysis, we identified a novel function of LEF1 as a regulator of the glutathione (GSH) system, the principal cellular redox buffer. LEF1 overexpression also conferred resistance against therapeutic GSH depletion during brain colonization and improved management of intracellular ROS. We conclude that besides EMT, LEF1 facilitates metastasis by improving the antioxidative capacity of epithelial breast cancer cells, in particular during colonization of the brain parenchyma."],["dc.identifier.doi","10.1002/ijc.32742"],["dc.identifier.eissn","1097-0215"],["dc.identifier.issn","0020-7136"],["dc.identifier.pmid","31626715"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16874"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/92047"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.eissn","1097-0215"],["dc.relation.issn","1097-0215"],["dc.relation.issn","0020-7136"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","610"],["dc.title","LEF1 supports metastatic brain colonization by regulating glutathione metabolism and increasing ROS resistance in breast cancer"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","1230"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Research and Practice in Thrombosis and Haemostasis"],["dc.bibliographiccitation.lastpage","1234"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Korsten, Peter"],["dc.contributor.author","Wallbach, Manuel"],["dc.contributor.author","Binder, Claudia"],["dc.date.accessioned","2020-12-11T11:54:04Z"],["dc.date.accessioned","2021-10-27T13:22:26Z"],["dc.date.available","2020-12-11T11:54:04Z"],["dc.date.available","2021-10-27T13:22:26Z"],["dc.date.issued","2020"],["dc.description.abstract","Von Willebrand disease (VWD) is a bleeding disorder caused by qualitative or quantitative defects of von Willebrand factor (VWF). This case report of a patient with systemic sclerosis and gastrointestinal bleeding from angiodysplasias seeks to address the key clinical question of a useful diagnostic and therapeutic approach in this setting. The extent of vascular malformations and the frequency of bleeding episodes were unusually severe, and we reached a diagnosis of inherited type 2A VWD. After an insufficient effect of treatment with factor VIII (FVIII)/VWF, prophylactic administration of vonicog alfa, a recombinant VWF preparation without FVIII, was initiated. This therapy led to a substantial reduction of transfusion requirements and the improvement of angiodysplasias. In refractory gastrointestinal bleeding, hemostaseological evaluation is crucial, as inherited disorders of hemostasis may go unnoticed, especially in patients with underlying autoimmune diseases, where complications may be ascribed to the underlying disease."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2020"],["dc.identifier.doi","10.1002/rth2.12426"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17696"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/92094"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.eissn","2475-0379"],["dc.relation.issn","2475-0379"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.relation.orgunit","Klinik für Nephrologie und Rheumatologie"],["dc.relation.orgunit","Abteilung Pädiatrische Hämatologie und Onkologie"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","610"],["dc.title","Type 2A von Willebrand disease and systemic sclerosis: Vonicog alfa reduced gastrointestinal bleeding"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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