Jatho, Aline

[["dc.bibliographiccitation.firstpage","741"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Cells"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Weber, Pamina"],["dc.contributor.author","Baltus, Doris"],["dc.contributor.author","Jatho, Aline"],["dc.contributor.author","Drews, Oliver"],["dc.contributor.author","Zelarayan, Laura C."],["dc.contributor.author","Wieland, Thomas"],["dc.contributor.author","Lutz, Susanne"],["dc.date.accessioned","2021-06-01T09:42:32Z"],["dc.date.available","2021-06-01T09:42:32Z"],["dc.date.issued","2021"],["dc.description.abstract","The Rho guanine nucleotide exchange factor RhoGEF17 was described to reside in adherens junctions (AJ) in endothelial cells (EC) and to play a critical role in the regulation of cell adhesion and barrier function. The purpose of this study was to analyze signal cascades and processes occurring subsequent to AJ disruption induced by RhoGEF17 knockdown. Primary human and immortalized rat EC were used to demonstrate that an adenoviral-mediated knockdown of RhoGEF17 resulted in cell rounding and an impairment in spheroid formation due to an enhanced proteasomal degradation of AJ components. In contrast, β-catenin degradation was impaired, which resulted in an induction of the β-catenin-target genes cyclin D1 and survivin. RhoGEF17 depletion additionally inhibited cell adhesion and sheet migration. The RhoGEF17 knockdown prevented the cells with impeded cell–cell and cell–matrix contacts from apoptosis, which was in line with a reduction in pro-caspase 3 expression and an increase in Akt phosphorylation. Nevertheless, the cells were not able to proliferate as a cell cycle block occurred. In summary, we demonstrate that a loss of RhoGEF17 disturbs cell–cell and cell–substrate interaction in EC. Moreover, it prevents the EC from cell death and blocks cell proliferation. Non-canonical β-catenin signaling and Akt activation could be identified as a potential mechanism."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft"],["dc.identifier.doi","10.3390/cells10040741"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/85279"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/391"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | C02: RhoGTPasen und ihre Bedeutung für die Last-abhängige Myokardfibrose"],["dc.relation.eissn","2073-4409"],["dc.relation.workinggroup","RG Lutz (G Protein-Coupled Receptor Mediated Signaling)"],["dc.relation.workinggroup","RG Zelarayán-Behrend (Developmental Pharmacology)"],["dc.rights","https://creativecommons.org/licenses/by/4.0/"],["dc.title","RhoGEF17—An Essential Regulator of Endothelial Cell Death and Growth"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e0137519"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Jatho, Aline"],["dc.contributor.author","Hartmann, Svenja"],["dc.contributor.author","Kittana, Naim"],["dc.contributor.author","Muegge, Felicitas"],["dc.contributor.author","Wuertz, Christina M."],["dc.contributor.author","Tiburcy, Malte"],["dc.contributor.author","Zimmermann, Wolfram-Hubertus"],["dc.contributor.author","Katschinski, Dörthe M."],["dc.contributor.author","Lutz, Susanne"],["dc.date.accessioned","2017-09-07T11:43:28Z"],["dc.date.available","2017-09-07T11:43:28Z"],["dc.date.issued","2015"],["dc.description.abstract","Introduction RhoA has been shown to be beneficial in cardiac disease models when overexpressed in cardiomyocytes, whereas its role in cardiac fibroblasts (CF) is still poorly understood. During cardiac remodeling CF undergo a transition towards a myofibroblast phenotype thereby showing an increased proliferation and migration rate. Both processes involve the remodeling of the cytoskeleton. Since RhoA is known to be a major regulator of the cytoskeleton, we analyzed its role in CF and its effect on myofibroblast characteristics in 2 D and 3D models. Results Downregulation of RhoA was shown to strongly affect the actin cytoskeleton. It decreased the myofibroblast marker alpha-sm-actin, but increased certain fibrosis-associated factors like TGF-beta and collagens. Also, the detailed analysis of CTGF expression demonstrated that the outcome of RhoA signaling strongly depends on the involved stimulus. Furthermore, we show that proliferation of myofibroblasts rely on RhoA and tubulin acetylation. In assays accessing three different types of migration, we demonstrate that RhoA/ROCK/Dia1 are important for 2D migration and the repression of RhoA and Dia1 signaling accelerates 3D migration. Finally, we show that a downregulation of RhoA in CF impacts the viscoelastic and contractile properties of engineered tissues. Conclusion RhoA positively and negatively influences myofibroblast characteristics by differential signaling cascades and depending on environmental conditions. These include gene expression, migration and proliferation. Reduction of RhoA leads to an increased viscoelasticity and a decrease in contractile force in engineered cardiac tissue."],["dc.description.sponsorship","Open-Access Publikationsfonds 2015"],["dc.identifier.doi","10.1371/journal.pone.0137519"],["dc.identifier.gro","3141809"],["dc.identifier.isi","000362511000003"],["dc.identifier.pmid","26448568"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12214"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/1312"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/118"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | C02: RhoGTPasen und ihre Bedeutung für die Last-abhängige Myokardfibrose"],["dc.relation","SFB 1002 | C04: Fibroblasten-Kardiomyozyten Interaktion im gesunden und erkrankten Herzen: Mechanismen und therapeutische Interventionen bei Kardiofibroblastopathien"],["dc.relation","SFB 1002 | C06: Mechanismen und Regulation der koronaren Gefäßneubildung"],["dc.relation.issn","1932-6203"],["dc.relation.workinggroup","RG Lutz (G Protein-Coupled Receptor Mediated Signaling)"],["dc.relation.workinggroup","RG Tiburcy (Stem Cell Disease Modeling)"],["dc.relation.workinggroup","RG Zimmermann (Engineered Human Myocardium)"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","RhoA Ambivalently Controls Prominent Myofibroblast Characteritics by Involving Distinct Signaling Routes"],["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"]]