2024
Protein condensates in the the secretory pathway: Unraveling biophysical interactions and function
Campelo F, Lillo J, von Blume J. Protein condensates in the the secretory pathway: Unraveling biophysical interactions and function. Biophysical Journal 2024, 123: 1531-1541. PMID: 38698644, PMCID: PMC11214006, DOI: 10.1016/j.bpj.2024.04.031.Peer-Reviewed Original ResearchSecretory pathwayProtein condensatesGolgi apparatusCellular processesEndoplasmic reticulumMembraneless organellesBiomolecular condensatesCellular consequencesCellular organizationBiochemical reactionsFunctional significanceProteinMembrane boundariesBiophysical interactionsPathwayMembraneSpecific componentsGolgiOrganellesReticulumOrganizationSecretoryCondensation interactionInteractionPhase separation phenomenonCalcium flow at ER-TGN contact sites facilitates secretory cargo export
Ramazanov B, Parchure A, Di Martino R, Kumar A, Chung M, Kim Y, Griesbeck O, Schwartz M, Luini A, von Blume J. Calcium flow at ER-TGN contact sites facilitates secretory cargo export. Molecular Biology Of The Cell 2024, 35: ar50. PMID: 38294859, PMCID: PMC11064664, DOI: 10.1091/mbc.e23-03-0099.Peer-Reviewed Original ResearchChromogranin B Purification for Condensate Formation and Client Partitioning Assays In Vitro
Parchure A, von Blume J. Chromogranin B Purification for Condensate Formation and Client Partitioning Assays In Vitro. Bio-protocol 2024, 14 DOI: 10.21769/bioprotoc.5095.Peer-Reviewed Original Research
2023
Sorting secretory proteins
Parchure A, von Blume J. Sorting secretory proteins. ELife 2023, 12: e93490. PMID: 37997893, PMCID: PMC10672786, DOI: 10.7554/elife.93490.Peer-Reviewed Original ResearchRediscovering the intricacies of secretory granule biogenesis
Campelo F, Tian M, von Blume J. Rediscovering the intricacies of secretory granule biogenesis. Current Opinion In Cell Biology 2023, 85: 102231. PMID: 37657367, DOI: 10.1016/j.ceb.2023.102231.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkSG biogenesisRegulated secretionImmature SGsEssential cellular processesSecretory granulesSecretory granule biogenesisImmature secretory granulesCargo selectionCargo receptorsCellular processesGranule biogenesisGranule cargoCargo moleculesBiogenesisBiophysical mechanismsDisease mechanismsCellular communicationCargoCentral roleDiverse rangeNew lightTraffickingMechanismProteinCab45 deficiency leads to the mistargeting of progranulin and prosaposin and aberrant lysosomal positioning
Tran M, Tüshaus J, Kim Y, Ramazanov B, Devireddy S, Lichtenthaler S, Ferguson S, von Blume J. Cab45 deficiency leads to the mistargeting of progranulin and prosaposin and aberrant lysosomal positioning. Traffic 2023, 24: 4-19. PMID: 36398980, PMCID: PMC9825660, DOI: 10.1111/tra.12873.Peer-Reviewed Original Research
2022
Quantification of Protein Exit at the Trans-Golgi Network
Tran M, Kim Y, von Blume J. Quantification of Protein Exit at the Trans-Golgi Network. Methods In Molecular Biology 2022, 2557: 583-594. PMID: 36512239, DOI: 10.1007/978-1-0716-2639-9_35.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkProtein exportSecretory pathwaySelective hooks (RUSH) systemCell biological approachesProtein of interestPulse-chase experimentsProtein exitProtein sortingExport kineticsCellular homeostasisProtein transportDifferent cargoesLive cellsBiological approachesRUSH systemProteinPathwayTraffickingHomeostasisExportCargoSortingCompartmentsCellsLiquid–liquid phase separation facilitates the biogenesis of secretory storage granules
Parchure A, Tian M, Stalder D, Boyer C, Bearrows S, Rohli K, Zhang J, Rivera-Molina F, Ramazanov B, Mahata S, Wang Y, Stephens S, Gershlick D, von Blume J. Liquid–liquid phase separation facilitates the biogenesis of secretory storage granules. Journal Of Cell Biology 2022, 221: e202206132. PMID: 36173346, PMCID: PMC9526250, DOI: 10.1083/jcb.202206132.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkLiquid-liquid phase separationSecretory granulesClient moleculesSecretory storage granulesΒ-cellsMembrane traffickingCargo receptorsPlasma membranePancreatic β-cellsProcessing enzymesCell typesStorage granulesChromogranin proteinsBiogenesisAcidic pHTraffickingGranulesProteinEnzyme
2021
Cargo sorting at the trans-Golgi network at a glance
Ford C, Parchure A, von Blume J, Burd CG. Cargo sorting at the trans-Golgi network at a glance. Journal Of Cell Science 2021, 134 PMID: 34870705, PMCID: PMC8714066, DOI: 10.1242/jcs.259110.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkDistinct export pathwaysClathrin-coated vesiclesTrafficking of glycoproteinsMechanism of proteinEndo-lysosomal organellesAccompanying posterGlance articleResident proteinsExport pathwayGolgi functionTrans-GolgiDifferent organellesGolgi cisternaeKey molecular featuresTrans cisternaeMembrane sacsFinal compartmentGolgiCell surfaceDistinct repertoireCell scienceTransport carriersProteinOrganellesCalcium levels in the Golgi complex regulate clustering and apical sorting of GPI-APs in polarized epithelial cells
Lebreton S, Paladino S, Liu D, Nitti M, von Blume J, Pinton P, Zurzolo C. Calcium levels in the Golgi complex regulate clustering and apical sorting of GPI-APs in polarized epithelial cells. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2014709118. PMID: 34389665, PMCID: PMC8379914, DOI: 10.1073/pnas.2014709118.Peer-Reviewed Original ResearchConceptsApical sortingGPI-APsCholesterol-dependent clusteringGolgi-resident proteinsPlasma membrane organizationPolarized epithelial cellsEpithelial cellsDiverse vital functionsResident proteinsMolecular machinerySecretory cargoMembrane organizationGolgi eventUnexpected roleGolgi complexSpecific machineryGolgiBasolateral surfaceApical surfaceCab45SPCA1Vital functionsMachinerySortingProteinRetention Using Selective Hooks (RUSH) Cargo Sorting Assay for Live-cell Vesicle Tracking in the Secretory Pathway Using HeLa Cells.
Pakdel M, Pacheco-Fernandez N, von Blume J. Retention Using Selective Hooks (RUSH) Cargo Sorting Assay for Live-cell Vesicle Tracking in the Secretory Pathway Using HeLa Cells. Bio-protocol 2021, 11: e3958. PMID: 33855118, PMCID: PMC8032492, DOI: 10.21769/bioprotoc.3958.Peer-Reviewed Original ResearchProtein traffickingVesicle traffickingSecretory pathwayGolgi vesicle traffickingSelective hooks (RUSH) systemHeLa cellsLive-cell microscopyMammalian cellsProtein cargoLive-cell monitoringCargo vesiclesVesicle trackingTraffickingRUSH systemSorting assaysWide-field microscopyPhysiological conditionsVesiclesMore detail processesPathwayCargoCellsFinal destinationProteinSecretorySending out molecules from the TGN
Ramazanov BR, Tran ML, von Blume J. Sending out molecules from the TGN. Current Opinion In Cell Biology 2021, 71: 55-62. PMID: 33706234, PMCID: PMC8328904, DOI: 10.1016/j.ceb.2021.02.005.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkEndoplasmic reticulum contact sitesCell-cell communicationExtracellular matrix proteinsMembrane traffickingCargo proteinsCargo sortingTGN structureTransmembrane proteinPlasma membraneContact sitesExciting linkSoluble proteinMatrix proteinsSorting mechanismProteinTransport carriersMajor open questionsSortingMembraneNovel typeTraffickingMachineryOrganismsVesiclesRetention Using Selective Hooks (RUSH) Cargo Sorting Assay for Protein Vesicle Tracking in HeLa Cells.
Pacheco-Fernandez N, Pakdel M, Von Blume J. Retention Using Selective Hooks (RUSH) Cargo Sorting Assay for Protein Vesicle Tracking in HeLa Cells. Bio-protocol 2021, 11: e3936. PMID: 33796610, PMCID: PMC8005885, DOI: 10.21769/bioprotoc.3936.Peer-Reviewed Original ResearchSecretory pathwaySelective hooks (RUSH) systemProtein sortingVesicle traffickingSpecific cargoCargo traffickingProtein cargoTrafficking dynamicsProtein dynamicsVesicle trackingBiotin additionHeLa cellsFluorescent vesiclesTraffickingSorting assaysPathwayCargoCellsProteinExcellent toolSuch studiesVesiclesBetter understandingRegulationSorting
2020
Seizure protein 6 controls glycosylation and trafficking of kainate receptor subunits GluK2 and GluK3
Pigoni M, Hsia H, Hartmann J, Rudan Njavro J, Shmueli MD, Müller SA, Güner G, Tüshaus J, Kuhn P, Kumar R, Gao P, Tran ML, Ramazanov B, Blank B, Hipgrave Ederveen A, Von Blume J, Mulle C, Gunnersen JM, Wuhrer M, Rammes G, Busche MA, Koeglsperger T, Lichtenthaler SF. Seizure protein 6 controls glycosylation and trafficking of kainate receptor subunits GluK2 and GluK3. The EMBO Journal 2020, 39: embj2019103457. PMID: 32567721, PMCID: PMC7396870, DOI: 10.15252/embj.2019103457.Peer-Reviewed Original ResearchConceptsPrimary neuronsCell surface localizationMolecular functionsKainate receptor subunit GluK2Trafficking factorsSecretory pathwayNovel functionHeterologous cellsMajor substrateSurface localizationProtein 6Alzheimer's diseaseCA1 pyramidal neuronsAcute hippocampal slicesProtease BACE1Kainate-evoked currentsGlycosylationGluK2/3Pyramidal neuronsGluK2Hippocampal slicesKainate receptorsPsychiatric disordersNervous systemPsychiatric diseasesNucleobindin-1 regulates ECM degradation by promoting intra-Golgi trafficking of MMPs
Pacheco-Fernandez N, Pakdel M, Blank B, Sanchez-Gonzalez I, Weber K, Tran ML, Hecht TK, Gautsch R, Beck G, Perez F, Hausser A, Linder S, von Blume J. Nucleobindin-1 regulates ECM degradation by promoting intra-Golgi trafficking of MMPs. Journal Of Cell Biology 2020, 219: e201907058. PMID: 32479594, PMCID: PMC7401813, DOI: 10.1083/jcb.201907058.Peer-Reviewed Original ResearchFam20C regulates protein secretion by Cab45 phosphorylation
Hecht TK, Blank B, Steger M, Lopez V, Beck G, Ramazanov B, Mann M, Tagliabracci V, von Blume J. Fam20C regulates protein secretion by Cab45 phosphorylation. Journal Of Cell Biology 2020, 219: e201910089. PMID: 32422653, PMCID: PMC7265331, DOI: 10.1083/jcb.201910089.Peer-Reviewed Original Research
2019
Lipid‐dependent coupling of secretory cargo sorting and trafficking at the trans‐Golgi network
von Blume J, Hausser A. Lipid‐dependent coupling of secretory cargo sorting and trafficking at the trans‐Golgi network. FEBS Letters 2019, 593: 2412-2427. PMID: 31344259, PMCID: PMC8048779, DOI: 10.1002/1873-3468.13552.Peer-Reviewed Original ResearchErratum To: Signal peptide peptidase‐like 2c impairs vesicular transport and cleaves SNARE proteins
Papadopoulou AA, Müller SA, Mentrup T, Shmueli MD, Niemeyer J, Haug-Kröper M, von Blume J, Mayerhofer A, Feederle R, Schröder B, Lichtenthaler SF, Fluhrer R. Erratum To: Signal peptide peptidase‐like 2c impairs vesicular transport and cleaves SNARE proteins. EMBO Reports 2019, 20: embr201948133. PMID: 31061204, PMCID: PMC6500957, DOI: 10.15252/embr.201948133.Peer-Reviewed Original ResearchExternalized histone H4 orchestrates chronic inflammation by inducing lytic cell death
Silvestre-Roig C, Braster Q, Wichapong K, Lee EY, Teulon JM, Berrebeh N, Winter J, Adrover JM, Santos GS, Froese A, Lemnitzer P, Ortega-Gómez A, Chevre R, Marschner J, Schumski A, Winter C, Perez-Olivares L, Pan C, Paulin N, Schoufour T, Hartwig H, González-Ramos S, Kamp F, Megens RTA, Mowen KA, Gunzer M, Maegdefessel L, Hackeng T, Lutgens E, Daemen M, von Blume J, Anders HJ, Nikolaev VO, Pellequer JL, Weber C, Hidalgo A, Nicolaes GAF, Wong GCL, Soehnlein O. Externalized histone H4 orchestrates chronic inflammation by inducing lytic cell death. Nature 2019, 569: 236-240. PMID: 31043745, PMCID: PMC6716525, DOI: 10.1038/s41586-019-1167-6.Peer-Reviewed Original ResearchConceptsSmooth muscle cellsChronic inflammationDestabilization of plaquesGlobal medical burdenImportant pathophysiological contributorCell deathPerpetuation of inflammationChronic vascular diseaseNeutrophil extracellular trapsMajor underlying causeLytic cell deathPathophysiological contributorVascular diseaseMedical burdenExtracellular trapsMouse modelAtherosclerotic lesionsMolecular mediatorsInflammationTissue damageTherapeutic valueMuscle cellsUnderlying causeDeathHistone H4Organelle zones
Nakano A, von Blume J. Organelle zones. Molecular Biology Of The Cell 2019, 30: 731-731. PMID: 30870094, PMCID: PMC6589774, DOI: 10.1091/mbc.e18-12-0818.Peer-Reviewed Original Research