2024
Calcium 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 Research
2021
Calcium 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 functionsMachinerySortingProtein
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 Research
2018
Exploring new routes for secretory protein export from the trans-Golgi network
Pakdel M, von Blume J. Exploring new routes for secretory protein export from the trans-Golgi network. Molecular Biology Of The Cell 2018, 29: 235-240. PMID: 29382805, PMCID: PMC5996961, DOI: 10.1091/mbc.e17-02-0117.Peer-Reviewed Original ResearchConceptsSecretory cargoSecretory proteinsCytoplasmic actin cytoskeletonMajor sorting stationTrans-Golgi networkGolgi residentsProtein exportGolgi networkActin cytoskeletonATPase SPCA1Cellular compartmentsTissue homeostasisSorting stationSoluble proteinTGNLysosomal hydrolasesOverall pathwayLuminal CaRecent discoveryProteinCargoSpecific carrierSortingCellsFinal destination
2016
Secretory cargo sorting by Ca2+-dependent Cab45 oligomerization at the trans-Golgi network
Crevenna AH, Blank B, Maiser A, Emin D, Prescher J, Beck G, Kienzle C, Bartnik K, Habermann B, Pakdel M, Leonhardt H, Lamb DC, von Blume J. Secretory cargo sorting by Ca2+-dependent Cab45 oligomerization at the trans-Golgi network. Journal Of Cell Biology 2016, 213: 305-314. PMID: 27138253, PMCID: PMC4862333, DOI: 10.1083/jcb.201601089.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkSecretory cargoSecretory proteinsSpecific cargo moleculesTransmembrane cargoCargo moleculesSuperresolution microscopyIntact cellsCab45Lysosomal hydrolasesExtracellular spaceDependent mannerCargoProteinOligomerizationSortingHydrolasesDependent changesMicrodomainsMutationsOligomersElucidationCellsCa2
2014
Cofilin recruits F-actin to SPCA1 and promotes Ca2+-mediated secretory cargo sorting
Kienzle C, Basnet N, Crevenna AH, Beck G, Habermann B, Mizuno N, von Blume J. Cofilin recruits F-actin to SPCA1 and promotes Ca2+-mediated secretory cargo sorting. Journal Of Cell Biology 2014, 206: 635-654. PMID: 25179631, PMCID: PMC4151145, DOI: 10.1083/jcb.201311052.Peer-Reviewed Original ResearchSecretory cargo sorting at the trans-Golgi network
Kienzle C, von Blume J. Secretory cargo sorting at the trans-Golgi network. Trends In Cell Biology 2014, 24: 584-593. PMID: 24841758, DOI: 10.1016/j.tcb.2014.04.007.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkCytoplasmic actin cytoskeletonPlasma membrane deliverySubset of proteinsNovel sorting mechanismKey cellular eventsSecretory cargoActin cytoskeletonCellular eventsBinding proteinLysosomal hydrolasesSorting mechanismProteinNormal physiologySuccessful sortingRecent discoverySortingCab45CytoskeletonHydrolasesSPCA1ATPaseRegulationPhysiologyCargo
2012
Cab45 is required for Ca2+-dependent secretory cargo sorting at the trans-Golgi network
von Blume J, Alleaume AM, Kienzle C, Carreras-Sureda A, Valverde M, Malhotra V. Cab45 is required for Ca2+-dependent secretory cargo sorting at the trans-Golgi network. Journal Of Cell Biology 2012, 199: 1057-1066. PMID: 23266954, PMCID: PMC3529532, DOI: 10.1083/jcb.201207180.Peer-Reviewed Original ResearchMeSH KeywordsCalciumCalcium SignalingCalcium-Binding ProteinsCartilage Oligomeric Matrix ProteinCathepsin DExtracellular Matrix ProteinsGene Knockdown TechniquesGlycoproteinsHeLa CellsHomeostasisHumansMatrilin ProteinsProtein BindingProtein IsoformsProtein TransportRNA InterferenceSecretory PathwayTrans-Golgi NetworkCofilin-mediated sorting and export of specific cargo from the Golgi apparatus in yeast
Curwin AJ, von Blume J, Malhotra V. Cofilin-mediated sorting and export of specific cargo from the Golgi apparatus in yeast. Molecular Biology Of The Cell 2012, 23: 2327-2338. PMID: 22553351, PMCID: PMC3374751, DOI: 10.1091/mbc.e11-09-0826.Peer-Reviewed Original ResearchMeSH KeywordsActin Depolymerizing FactorsBlotting, WesternCathepsin ACell MembraneCofilin 1EndocytosisGlucan Endo-1,3-beta-D-GlucosidaseGreen Fluorescent ProteinsIntracellular MembranesMicroscopy, FluorescenceMutationProtein TransportProton-Translocating ATPasesR-SNARE ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsTrans-Golgi NetworkVacuolesConceptsTrans-Golgi networkLate Golgi membranesCarboxypeptidase YSecretory cargoGolgi membranesLate Golgi compartmentMechanisms of cargoSoluble secretory proteinsRole of cofilinATPase Pma1Yeast orthologueSynthetic sicknessProtein cofilinSpecific cargoMutant cellsMammalian cellsGolgi compartmentSorting defectsPlasma membraneSecretory proteinsGolgi apparatusATPase 1CofilinCell surfacePMR1
2011
ADF/Cofilin Regulates Secretory Cargo Sorting at the TGN via the Ca2+ ATPase SPCA1
von Blume J, Alleaume AM, Cantero-Recasens G, Curwin A, Carreras-Sureda A, Zimmermann T, van Galen J, Wakana Y, Valverde MA, Malhotra V. ADF/Cofilin Regulates Secretory Cargo Sorting at the TGN via the Ca2+ ATPase SPCA1. Developmental Cell 2011, 20: 652-662. PMID: 21571222, DOI: 10.1016/j.devcel.2011.03.014.Peer-Reviewed Original Research
2009
Actin remodeling by ADF/cofilin is required for cargo sorting at the trans-Golgi network
von Blume J, Duran JM, Forlanelli E, Alleaume AM, Egorov M, Polishchuk R, Molina H, Malhotra V. Actin remodeling by ADF/cofilin is required for cargo sorting at the trans-Golgi network. Journal Of Cell Biology 2009, 187: 1055-1069. PMID: 20026655, PMCID: PMC2806282, DOI: 10.1083/jcb.200908040.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkADF/cofilinActin-depolymerizing factorSecretory proteinsSecretory cargoCofilin knockdownMass spectrometry-based protein profilingMammalian tissue culture cellsGolgi-resident proteinsSorting of proteinsEndogenous secretory proteinsIntegral membrane proteinsSoluble secretory proteinsStable isotope labelingTissue culture cellsDrosophila melanogasterActin remodelingMammalian cellsMembrane proteinsGolgi membranesProtein profilingIsotope labelingCofilinCell surfaceAmino acids