2024
Loss of function of metabolic traits in typhoidal Salmonella without apparent genome degradation
Machado L, Galán J. Loss of function of metabolic traits in typhoidal Salmonella without apparent genome degradation. MBio 2024, 15: e00607-24. PMID: 38572992, PMCID: PMC11077982, DOI: 10.1128/mbio.00607-24.Peer-Reviewed Original ResearchConceptsSalmonella enterica</i> serovar TyphiAdaptive convergent evolutionFunction of metabolic pathwaysAmino acid substitutionsConvergent evolutionMetabolic pathwaysParatyphi A.Paratyphi AHuman hostTranscriptional regulationAcid substitutionsMetabolic capabilitiesPoint mutationsParatyphoid feverTranscriptional regulatory proteinsMetabolic enzymesAffecting different genesPresence of point mutationsGenome degradationTyphoidal SalmonellaGlucose-6-phosphateCoding sequenceBioinformatics approachTyphiBacterial pathogens
2023
Parkinson’s disease kinase LRRK2 coordinates a cell-intrinsic itaconate-dependent defence pathway against intracellular Salmonella
Lian H, Park D, Chen M, Schueder F, Lara-Tejero M, Liu J, Galán J. Parkinson’s disease kinase LRRK2 coordinates a cell-intrinsic itaconate-dependent defence pathway against intracellular Salmonella. Nature Microbiology 2023, 8: 1880-1895. PMID: 37640963, PMCID: PMC10962312, DOI: 10.1038/s41564-023-01459-y.Peer-Reviewed Original ResearchConceptsLeucine-rich repeat kinase 2Loss of LRRK2Host defense mechanismsKinase leucine-rich repeat kinase 2Parkinson's disease-associated leucine-rich repeat kinase 2Host defense pathwaysBacterial pathogen SalmonellaRepeat kinase 2Salmonella infectionSalmonella-containing vacuolesCell-intrinsic defenseIntracellular pathogensIntracellular SalmonellaFirst lineSalmonella replicationSalmonella mutantsKinase 2Pathogen SalmonellaDefense mechanismsSalmonellaHost mitochondriaDefense pathwaysDeliveryDefense responsesCells
2022
Typhoid toxin sorting and exocytic transport from Salmonella Typhi-infected cells
Chang SJ, Hsu YT, Chen Y, Lin YY, Lara-Tejero M, Galan JE. Typhoid toxin sorting and exocytic transport from Salmonella Typhi-infected cells. ELife 2022, 11: e78561. PMID: 35579416, PMCID: PMC9142146, DOI: 10.7554/elife.78561.Peer-Reviewed Original ResearchConceptsCellular machineryType III protein secretion systemSpecific cellular machineryVesicle carriersProtein secretion systemExtracellular spaceTyphoid toxinEssential virulence factorExocytic transportGTPase Sar1Syntaxin 4Unusual biologySecretion systemPlasma membraneIntracellular transportRemarkable adaptationSpecific effectorsHost cellsIntracellular pathogensVirulence factorsMachineryCooptionVacuolesToxinSpecific environment
2006
Differential activation and function of Rho GTPases during Salmonella–host cell interactions
Patel JC, Galán J. Differential activation and function of Rho GTPases during Salmonella–host cell interactions. Journal Of Cell Biology 2006, 175: 453-463. PMID: 17074883, PMCID: PMC2064522, DOI: 10.1083/jcb.200605144.Peer-Reviewed Original ResearchMeSH KeywordsActinsAnimalsBacterial ProteinsCdc42 GTP-Binding ProteinCell MembraneChlorocebus aethiopsCOS CellsEnzyme ActivationGuanine Nucleotide Exchange FactorsHumansIntestinal MucosaMutationRac1 GTP-Binding ProteinRho GTP-Binding ProteinsRNA InterferenceSalmonella InfectionsSalmonella typhimuriumTransfectionConceptsRho family GTPasesExchange factorCellular responsesRho family guanosine triphosphatasesSalmonella-host cell interactionsType III secretion systemSpecific Rho family GTPasesActin cytoskeleton remodelingDifferent Rho family GTPasesSpecific cellular responsesActin remodelingGuanosine triphosphatasesRho GTPasesSecretion systemCytoskeleton remodelingBacterial proteinsGTPasesSophisticated mechanismsHost cellsDistinct rolesBacterial pathogensCell interactionsSalmonella entericaDifferential activationCentral role
2004
Salmonella Modulates Vesicular Traffic by Altering Phosphoinositide Metabolism
Hernandez LD, Hueffer K, Wenk MR, Galán J. Salmonella Modulates Vesicular Traffic by Altering Phosphoinositide Metabolism. Science 2004, 304: 1805-1807. PMID: 15205533, DOI: 10.1126/science.1098188.Peer-Reviewed Original ResearchConceptsIntracellular replicative nicheType III secretion systemActin cytoskeleton rearrangementBacteria-containing vacuolesBacterial intracellular growthPhosphoinositide phosphataseInnate immune defenseSecretion systemReplicative nicheBacterial entryCytoskeleton rearrangementSpacious phagosomesHost cellsNonphagocytic cellsIntracellular growthImmune defenseSopBPhosphoinositide metabolismSignificant defectsSalmonella entericaVacuolesMembraneCellsNichePhagosomes
2001
Salmonella entry into host cells: the work in concert of type III secreted effector proteins
Zhou D, Galán J. Salmonella entry into host cells: the work in concert of type III secreted effector proteins. Microbes And Infection 2001, 3: 1293-1298. PMID: 11755417, DOI: 10.1016/s1286-4579(01)01489-7.Peer-Reviewed Original ResearchConceptsActin cytoskeleton rearrangementCytoskeleton rearrangementActin dynamicsHost cellsHost actin dynamicsHost signal transductionType III secretion systemActin-binding proteinsSPI-1 type III secretion systemEffector proteinsSecretion systemSignal transductionActin rearrangementBacterial proteinsSalmonella entryIntestinal epithelial cellsBacterial uptakeCdc42Coordinated stepsProteinEpithelial cellsRacRearrangementCellsTransductionSALMONELLA INTERACTIONS WITH HOST CELLS: Type III Secretion at Work
Galán J. SALMONELLA INTERACTIONS WITH HOST CELLS: Type III Secretion at Work. Annual Review Of Cell And Developmental Biology 2001, 17: 53-86. PMID: 11687484, DOI: 10.1146/annurev.cellbio.17.1.53.Peer-Reviewed Original ResearchConceptsBacterial proteinsBacterial pathogen Salmonella entericaHost cellsType III secretion systemActin cytoskeleton dynamicsType III secretionHost cell functionsPathogen Salmonella entericaMolecular tinkeringConvergent evolutionEndocytic traffickingCytoskeleton dynamicsSpecialized organellesCellular functionsSecretion systemMicrobial pathogenesisRemarkable pathogenHost proteinsSalmonella interactionsVertebrate hostsProteinRemarkable arrayCoordinated actionCell functionSalmonella entericaA Salmonella inositol polyphosphatase acts in conjunction with other bacterial effectors to promote host cell actin cytoskeleton rearrangements and bacterial internalization
Zhou D, Chen L, Hernandez L, Shears S, Galán J. A Salmonella inositol polyphosphatase acts in conjunction with other bacterial effectors to promote host cell actin cytoskeleton rearrangements and bacterial internalization. Molecular Microbiology 2001, 39: 248-260. PMID: 11136447, DOI: 10.1046/j.1365-2958.2001.02230.x.Peer-Reviewed Original ResearchMeSH KeywordsActinsAnimalsBacterial ProteinsCdc42 GTP-Binding ProteinCell MembraneCells, CulturedChlorocebus aethiopsCOS CellsCytoskeletonHumansInositol PhosphatesIntestinesJNK Mitogen-Activated Protein KinasesMAP Kinase Kinase 4Mitogen-Activated Protein Kinase KinasesPhosphoric Monoester HydrolasesPhosphorylationSalmonella InfectionsSalmonella typhimuriumTransfectionConceptsActin cytoskeleton rearrangementCytoskeleton rearrangementBacterial entrySecretion systemBacterial internalizationCellular responsesHost cellsRho GTPases signalingProtein secretion systemHost cell actin cytoskeleton rearrangementsHost cellular functionsSpecialized protein secretion systemCdc42-dependent mannerNon-phagocytic cellsBacterial effectorsAbility of SalmonellaInositol phosphataseCellular functionsDefective mutantsBacterial proteinsCo-ordinated functionSalmonella pathogenicityBacterium's abilitySopBPhospholipase C.
2000
Alternative Strategies for Becoming an Insider Lessons from the Bacterial World
Galán J. Alternative Strategies for Becoming an Insider Lessons from the Bacterial World. Cell 2000, 103: 363-366. PMID: 11081622, DOI: 10.1016/s0092-8674(00)00127-6.Peer-Reviewed Original Research
1999
A Salmonella protein antagonizes Rac-1 and Cdc42 to mediate host-cell recovery after bacterial invasion
Fu Y, Galán J. A Salmonella protein antagonizes Rac-1 and Cdc42 to mediate host-cell recovery after bacterial invasion. Nature 1999, 401: 293-297. PMID: 10499590, DOI: 10.1038/45829.Peer-Reviewed Original ResearchMeSH KeywordsActinsArginineBacterial AdhesionBacterial ProteinsCdc42 GTP-Binding Protein, Saccharomyces cerevisiaeCell Cycle ProteinsCell MembraneEscherichia coliGTPase-Activating ProteinsGTP-Binding ProteinsHumansJNK Mitogen-Activated Protein KinasesMAP Kinase Kinase 4Mitogen-Activated Protein Kinase KinasesMutationProtein KinasesProtein Tyrosine PhosphatasesProteinsRecombinant Fusion ProteinsSalmonella typhimuriumConceptsHost cell cytosolActin cytoskeletonType III secretion systemProtein secretion systemSpecialized protein secretion systemActin cytoskeleton reorganizationCell actin cytoskeletonActin cytoskeletal changesRho GTPase proteinsRac-1Bacterial effectorsEffector proteinsExchange factorGTPase proteinsSecretion systemSalmonella proteinsCytoskeletal changesCellular responsesCdc42ProteinInfected cellsBacterial invasionCytosolBacteriumSPTPAn invasion-associated Salmonella protein modulates the actin-bundling activity of plastin
Zhou D, Mooseker M, Galán J. An invasion-associated Salmonella protein modulates the actin-bundling activity of plastin. Proceedings Of The National Academy Of Sciences Of The United States Of America 1999, 96: 10176-10181. PMID: 10468582, PMCID: PMC17862, DOI: 10.1073/pnas.96.18.10176.Peer-Reviewed Original ResearchConceptsActin-bundling activityT-plastinBacterial-host cell contactHost cell signal transduction pathwaysHost cellsType III secretion systemBacterial effector proteinsActin-binding proteinsSignal transduction pathwaysBacterial effectorsMembrane rufflesEffector proteinsActin cytoskeletonMembrane rufflingSecretion systemSalmonella proteinsBacterial entryBacterial internalizationSalmonella entrySignaling processesActin filamentsF-actinNonphagocytic cellsProteinCell contactType III Secretion Machines: Bacterial Devices for Protein Delivery into Host Cells
Galán J, Collmer A. Type III Secretion Machines: Bacterial Devices for Protein Delivery into Host Cells. Science 1999, 284: 1322-1328. PMID: 10334981, DOI: 10.1126/science.284.5418.1322.Peer-Reviewed Original ResearchConceptsSecretion systemComplex protein secretion systemsHost cellsType III secretion systemBacterial effector proteinsProtein secretion systemAnimal pathogenic bacteriaHost cellular functionsGram-negative pathogenic bacteriaBacterial devicesPathogenic bacteriaEffector proteinsCellular functionsFlagellar apparatusBacterial speciesEffector moleculesProtein deliveryBacteriaCellsNovel preventionBiologySpeciesPlantsProteinTherapeutic approachesRole of the S. typhimurium Actin-Binding Protein SipA in Bacterial Internalization
Zhou D, Mooseker M, Galán J. Role of the S. typhimurium Actin-Binding Protein SipA in Bacterial Internalization. Science 1999, 283: 2092-2095. PMID: 10092234, DOI: 10.1126/science.283.5410.2092.Peer-Reviewed Original Research
1998
S. typhimurium Encodes an Activator of Rho GTPases that Induces Membrane Ruffling and Nuclear Responses in Host Cells
Hardt W, Chen L, Schuebel K, Bustelo X, Galán J. S. typhimurium Encodes an Activator of Rho GTPases that Induces Membrane Ruffling and Nuclear Responses in Host Cells. Cell 1998, 93: 815-826. PMID: 9630225, DOI: 10.1016/s0092-8674(00)81442-7.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBacterial ProteinsCalcium-Calmodulin-Dependent Protein KinasesCdc42 GTP-Binding ProteinCell Cycle ProteinsCell MembraneCell NucleusCOS CellsCytoskeletonEnzyme ActivationGTP PhosphohydrolasesGTPase-Activating ProteinsGTP-Binding ProteinsGuanosine DiphosphateGuanosine TriphosphateHeLa CellsHumansJNK Mitogen-Activated Protein KinasesMitogen-Activated Protein KinasesProteinsSalmonella typhimuriumSignal TransductionConceptsHost cellsMembrane rufflingSecretion systemGDP/GTP nucleotide exchangeProtein secretion systemActivator of RhoCDNA library screenActin cytoskeleton rearrangementRac-1Rho GTPasesCytoskeletal reorganizationCytoskeleton rearrangementBacterial proteinsNucleotide exchangeLibrary screenJNK activationCellular responsesNuclear responseCdc42Pathogen inducesSopERufflingMicrobial stimulationProteinCells
1996
CROSS-TALK BETWEEN BACTERIAL PATHOGENS AND THEIR HOST CELLS
Galán J, Bliska J. CROSS-TALK BETWEEN BACTERIAL PATHOGENS AND THEIR HOST CELLS. Annual Review Of Cell And Developmental Biology 1996, 12: 221-255. PMID: 8970727, DOI: 10.1146/annurev.cellbio.12.1.221.Peer-Reviewed Original ResearchConceptsHost cellsHost cell signal transduction pathwaysProtein secretion systemHost cellular functionsSpecialized protein secretion systemSignal transduction pathwaysBacterial pathogensHost cell interactionsSecretion systemTransduction pathwaysBacterial proteinsCell physiologyBiochemical interactionsDiverse groupPathogensNovel therapeutic approachesCellsProteinTranslocationBetter understandingInteractionPathwayPhysiologyTherapeutic approachesBasic aspectsA secreted protein tyrosine phosphatase with modular effector domains in the bacterial pathogen Salmonella typhimurlum
Kaniga K, Uralil J, Bliska J, Galán J. A secreted protein tyrosine phosphatase with modular effector domains in the bacterial pathogen Salmonella typhimurlum. Molecular Microbiology 1996, 21: 633-641. PMID: 8866485, DOI: 10.1111/j.1365-2958.1996.tb02571.x.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBacterial ProteinsBase SequenceCell LineChromosomes, BacterialDisease Models, AnimalDNA, BacterialEpithelial CellsFemaleHumansMacrophagesMiceMice, Inbred BALB CMolecular Sequence DataProtein Tyrosine PhosphatasesSalmonella InfectionsSalmonella typhimuriumSequence Homology, Amino AcidVirulenceConceptsProtein tyrosine phosphataseTyrosine phosphataseEffector proteinsCatalytic domainHost cell signal transduction pathwaysBacterial pathogen Salmonella typhimuriumSignal transduction pathwaysCritical Cys residuesAmino-terminal regionCarboxy-terminal regionPathogen Salmonella typhimuriumCell regulatory moleculesSequence similarityEffector domainSignaling functionsExport proteinCys residuesRegulatory moleculesExoenzyme SSequence analysisPeptide substratesPhosphatase activityCatalytic mechanismProteinYersinia sppMolecular genetic bases of Salmonella entry into host cells
Galán J. Molecular genetic bases of Salmonella entry into host cells. Molecular Microbiology 1996, 20: 263-271. PMID: 8733226, DOI: 10.1111/j.1365-2958.1996.tb02615.x.Peer-Reviewed Original ResearchConceptsMolecular genetic basisGenetic basisContact-dependent secretion systemsPlant pathogenic bacteriaNumber of proteinsNon-phagocytic cellsCultured epithelial cellsCentisome 63Secretion systemVariety of animalsKb regionSalmonella chromosomeSalmonella entryExtracellular environmentRemarkable homologyHost cellsEpithelial cellsEntry functionCellsChromosomesConsiderable progressHomologyLociOrganismsProtein
1994
Interactions of bacteria with non-phagocytic cells
Galan J. Interactions of bacteria with non-phagocytic cells. Current Opinion In Immunology 1994, 6: 590-595. PMID: 7946047, DOI: 10.1016/0952-7915(94)90146-5.Peer-Reviewed Original ResearchThe molecular genetic bases of Salmonella entry into mammalian cells
Galán J, Ginocchio C. The molecular genetic bases of Salmonella entry into mammalian cells. Biochemical Society Transactions 1994, 22: 301-306. PMID: 7958312, DOI: 10.1042/bst0220301.Peer-Reviewed Original Research
1993
Signal transduction in the mammalian cell during bacterial attachment and entry
Bliska J, Galán J, Falkow S. Signal transduction in the mammalian cell during bacterial attachment and entry. Cell 1993, 73: 903-920. PMID: 8500180, DOI: 10.1016/0092-8674(93)90270-z.Peer-Reviewed Original Research