2022
Dysregulation of the Scribble/YAP/β‐catenin axis sustains the fibroinflammatory response in a PKHD1−/− mouse model of congenital hepatic fibrosis
Fabris L, Milani C, Fiorotto R, Mariotti V, Kaffe E, Seller B, Sonzogni A, Strazzabosco M, Cadamuro M. Dysregulation of the Scribble/YAP/β‐catenin axis sustains the fibroinflammatory response in a PKHD1−/− mouse model of congenital hepatic fibrosis. The FASEB Journal 2022, 36: e22364. PMID: 35593740, PMCID: PMC9150862, DOI: 10.1096/fj.202101924r.Peer-Reviewed Original ResearchConceptsYes-associated proteinPlanar cell polarityΒ-cateninΒ-catenin axisYAP nuclear importRole of ScribbleNuclear translocationYAP/TAZΒ-catenin signalingCell polarityNuclear importCyst cellsNuclear expressionScribble expressionΒ-catenin nuclear expressionConditional deletionGenetic defectsTissue growth factor expressionIntegrin β6Connective tissue growth factor expressionCyst growthExpressionCystic cholangiocytesMRNA levelsScribbles
2019
Pathobiology of inherited biliary diseases: a roadmap to understand acquired liver diseases
Fabris L, Fiorotto R, Spirli C, Cadamuro M, Mariotti V, Perugorria MJ, Banales JM, Strazzabosco M. Pathobiology of inherited biliary diseases: a roadmap to understand acquired liver diseases. Nature Reviews Gastroenterology & Hepatology 2019, 16: 497-511. PMID: 31165788, PMCID: PMC6661007, DOI: 10.1038/s41575-019-0156-4.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsCystic fibrosis-related liver diseaseFibropolycystic liver diseaseLiver diseasePolycystic liver diseaseBiliary repairAlagille syndromeEpithelial toll-like receptor 4Toll-like receptor 4Acquired liver diseasesGut-derived productsPrimary sclerosing cholangitisDuct epithelial cellsSclerosing cholangitisΒ-catenin signalingPortal fibrosisBiliary diseaseIL-1βUnknown etiologyDependent cytokinesReceptor 4Peribiliary inflammationRole of NotchCholangiopathyNovel treatmentsCyst growth
2018
β‐Catenin and interleukin‐1β–dependent chemokine (C‐X‐C motif) ligand 10 production drives progression of disease in a mouse model of congenital hepatic fibrosis
Kaffe E, Fiorotto R, Pellegrino F, Mariotti V, Amenduni M, Cadamuro M, Fabris L, Strazzabosco M, Spirli C. β‐Catenin and interleukin‐1β–dependent chemokine (C‐X‐C motif) ligand 10 production drives progression of disease in a mouse model of congenital hepatic fibrosis. Hepatology 2018, 67: 1903-1919. PMID: 29140564, PMCID: PMC5906178, DOI: 10.1002/hep.29652.Peer-Reviewed Original ResearchConceptsSignal transducerΒ-cateninJanus kinase/signal transducerKinase/signal transducerActivator of transcriptionProtein kinase ATranscription 3 (STAT3) phosphorylationHepatic disease 1 (PKHD1) geneNOD-like receptorsKinase ATranscription 3Novel therapeutic avenuesGenetic diseasesNuclear translocationCognate receptorsFamily 3Nuclear factorMouse modelPKHD1Activated B cellsPhosphorylationActivatorCyst growthTherapeutic avenuesAMG 487
2016
Adenylyl cyclase 5 links changes in calcium homeostasis to cAMP-dependent cyst growth in polycystic liver disease
Spirli C, Mariotti V, Villani A, Fabris L, Fiorotto R, Strazzabosco M. Adenylyl cyclase 5 links changes in calcium homeostasis to cAMP-dependent cyst growth in polycystic liver disease. Journal Of Hepatology 2016, 66: 571-580. PMID: 27826057, PMCID: PMC5316496, DOI: 10.1016/j.jhep.2016.10.032.Peer-Reviewed Original ResearchMeSH KeywordsAdenylyl Cyclase InhibitorsAdenylyl CyclasesAnimalsCalciumCell ProliferationCyclic AMPCystsDisease Models, AnimalHomeostasisHumansLiver DiseasesMAP Kinase Signaling SystemMiceMice, KnockoutPolycystic Kidney, Autosomal DominantRNA InterferenceSignal TransductionStromal Interaction Molecule 1TRPP Cation ChannelsVascular Endothelial Growth Factor AConceptsProgressive cyst growthPolycystic liver diseaseNovel therapeutic targetLiver diseaseKO miceCyst growthTherapeutic targetBiliary organoidsDouble conditional knockout miceCAMP productionAutosomal dominant polycystic kidney diseaseVascular endothelial growth factorCell proliferationDominant polycystic kidney diseaseEndothelial growth factorConditional knockout micePolycystic kidney diseaseLiver transplantationLevels of cAMPStore-operated CaCystic areasKidney diseaseCyst sizeVivo treatmentKnockout mice
2012
Cyclic AMP/PKA‐dependent paradoxical activation of Raf/MEK/ERK signaling in polycystin‐2 defective mice treated with sorafenib
Spirli C, Morell CM, Locatelli L, Okolicsanyi S, Ferrero C, Kim AK, Fabris L, Fiorotto R, Strazzabosco M. Cyclic AMP/PKA‐dependent paradoxical activation of Raf/MEK/ERK signaling in polycystin‐2 defective mice treated with sorafenib. Hepatology 2012, 56: 2363-2374. PMID: 22653837, PMCID: PMC3460040, DOI: 10.1002/hep.25872.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntineoplastic Agents, HormonalBenzenesulfonatesBile DuctsCaspase 3Cell ProliferationCells, CulturedCyclic AMP-Dependent Protein KinasesCystsDrug Therapy, CombinationEpithelial CellsKi-67 AntigenLiver DiseasesMAP Kinase Signaling SystemMiceMice, KnockoutNiacinamideOctreotidePhenylurea CompoundsPhosphorylationProtein Kinase InhibitorsProto-Oncogene Proteins B-rafProto-Oncogene Proteins c-rafPyridinesSorafenibTRPP Cation ChannelsConceptsRaf-1Cell proliferationB-RafPhosphorylated ERKRaf kinase activitySignal-regulated kinase 1/2 pathwayRAF inhibitorsCyclic adenosine monophosphateRaf/MEK/ERKCyst growthDefective miceKinase 1/2 pathwayParadoxical activationCAMP/PKAMEK/ERKPolycystin-2Kinase AKinase activityWT cellsDependent activationERK1/2 phosphorylationInhibitor 14Epithelial cellsAdenosine monophosphateERKAltered store operated calcium entry increases cyclic 3′,5′‐adenosine monophosphate production and extracellular signal‐regulated kinases 1 and 2 phosphorylation in polycystin‐2‐defective cholangiocytes
Spirli C, Locatelli L, Fiorotto R, Morell CM, Fabris L, Pozzan T, Strazzabosco M. Altered store operated calcium entry increases cyclic 3′,5′‐adenosine monophosphate production and extracellular signal‐regulated kinases 1 and 2 phosphorylation in polycystin‐2‐defective cholangiocytes. Hepatology 2012, 55: 856-868. PMID: 21987453, PMCID: PMC3272110, DOI: 10.1002/hep.24723.Peer-Reviewed Original ResearchMeSH KeywordsAdenylyl CyclasesAnimalsBile DuctsCalciumCalcium ChannelsCalcium SignalingCells, CulturedCyclic AMPCyclic AMP-Dependent Protein KinasesHomeostasisMembrane GlycoproteinsMiceMice, KnockoutMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Models, AnimalPhosphorylationSignal TransductionStromal Interaction Molecule 1TRPP Cation ChannelsVascular Endothelial Growth Factor AConceptsSensor stromal interaction molecule 1Adenylyl cyclase type 6Extracellular signal-regulated kinases 1Signal-regulated kinases 1Overproduction of cAMPStromal interaction molecule 1Orai channelsWild-type miceSOCE activationCAMP productionRapamycin (mTOR) signalingKinase 1ERK pathwayERK1/2 activationHuman diseasesWT cellsMammalian targetDependent activationSTIM-1CAMP/Inappropriate activationCyst growthCystic cholangiocytesPolycystic liver diseaseActivation
2010
Cholangiocyte Biology as Relevant to Cystic Liver Diseases
Lecchi S, Fabris L, Spirli C, Cadamuro M, Fiorotto R, Strazzabosco M. Cholangiocyte Biology as Relevant to Cystic Liver Diseases. Clinical Gastroenterology 2010, 23-43. DOI: 10.1007/978-1-60327-524-8_2.ChaptersLiver cystsLiver diseaseSevere life-threatening complicationsIntrahepatic bile duct epitheliumComplex intercellular signalingCystic liver diseaseProgressive cyst growthLife-threatening complicationsEpithelial cellsBile duct epitheliumIntrahepatic biliary treePolycystic liver diseaseExcessive fluid secretionRenal tubule epitheliumRecessive formExtracellular matrix remodelingBiliary treeBiliary epitheliumCystic diseaseDuct epitheliumCyst expansionCyst growthAutocrine mechanismTubule epitheliumHereditary disorder
2009
Mammalian target of rapamycin regulates vascular endothelial growth factor–dependent liver cyst growth in polycystin‐2–defective mice
Spirli C, Okolicsanyi S, Fiorotto R, Fabris L, Cadamuro M, Lecchi S, Tian X, Somlo S, Strazzabosco M. Mammalian target of rapamycin regulates vascular endothelial growth factor–dependent liver cyst growth in polycystin‐2–defective mice. Hepatology 2009, 51: 1778-1788. PMID: 20131403, PMCID: PMC2930014, DOI: 10.1002/hep.23511.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCystsDisease Models, AnimalExtracellular Signal-Regulated MAP KinasesHypoxia-Inducible Factor 1, alpha SubunitInsulin-Like Growth Factor IIntracellular Signaling Peptides and ProteinsLiver DiseasesMicePolycystic Kidney, Autosomal DominantProtein Serine-Threonine KinasesSirolimusTOR Serine-Threonine KinasesTRPP Cation ChannelsVascular Endothelial Growth Factor AConceptsMammalian targetInsulin-like growth factor-1Extracellular signal-regulated kinase 1/2Extracellular signal-regulated kinaseSignal-regulated kinase 1/2Autosomal dominant polycystic kidney diseaseLiver cyst growthVascular endothelial growth factorProtein kinase AInsulin-like growth factor 1 receptorSignal-regulated kinaseGrowth factor 1 receptorVEGF secretionCyst growthMTOR inhibitor rapamycinFactor 1 receptorHIF1alpha accumulationFactor 1 alphaDependent phosphorylationKinase AKinase 1/2P-P70S6KInhibitor rapamycinHypoxia-inducible factor-1 alphaExpression of CC3ERK1/2-Dependent Vascular Endothelial Growth Factor Signaling Sustains Cyst Growth in Polycystin-2 Defective Mice
Spirli C, Okolicsanyi S, Fiorotto R, Fabris L, Cadamuro M, Lecchi S, Tian X, Somlo S, Strazzabosco M. ERK1/2-Dependent Vascular Endothelial Growth Factor Signaling Sustains Cyst Growth in Polycystin-2 Defective Mice. Gastroenterology 2009, 138: 360-371.e7. PMID: 19766642, PMCID: PMC3000794, DOI: 10.1053/j.gastro.2009.09.005.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCells, CulturedCyclic AMP-Dependent Protein KinasesCystsHypoxia-Inducible Factor 1, alpha SubunitIndolesLiver DiseasesMAP Kinase Signaling SystemMiceMice, KnockoutMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3PhenotypePhosphorylationProliferating Cell Nuclear AntigenProtein Kinase InhibitorsPyrrolesRepressor ProteinsTRPP Cation ChannelsTumor Suppressor ProteinsVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-2ConceptsVascular endothelial growth factorPolycystic liver diseaseVEGF secretionLiver cystsLiver diseaseVEGFR-2Cyst growthLiver/body weight ratioAdult dominant polycystic kidney diseaseParacrine vascular endothelial growth factorSecretion of VEGFHIF-1alphaBody weight ratioEffects of VEGFAutocrine vascular endothelial growth factorDominant polycystic kidney diseaseExpression of pERKVascular endothelial growth factor signalingPhosphorylated VEGFR-2Liver cyst growthEndothelial growth factorPolycystic kidney diseaseCyst epithelial cellsExtracellular signal-regulated kinase 1/2Hypoxia-inducible factor