2024
Call for Papers: The Role of Microbiota in Infection and Immunity
Griffin M, Hatzios S, Qiao Y. Call for Papers: The Role of Microbiota in Infection and Immunity. ACS Infectious Diseases 2024, 10: 3714-3714. PMID: 39512094, DOI: 10.1021/acsinfecdis.4c00841.Peer-Reviewed Original Research
2023
Isotope tracing reveals bacterial catabolism of host-derived glutathione during Helicobacter pylori infection
Baskerville M, Kovalyova Y, Mejías-Luque R, Gerhard M, Hatzios S. Isotope tracing reveals bacterial catabolism of host-derived glutathione during Helicobacter pylori infection. PLOS Pathogens 2023, 19: e1011526. PMID: 37494402, PMCID: PMC10406306, DOI: 10.1371/journal.ppat.1011526.Peer-Reviewed Original ResearchConceptsH. pylori infectionPylori infectionInfected cellsBacterial catabolismGastric pathogen Helicobacter pyloriGSH depletionPathogen Helicobacter pyloriH. pylori-infected cellsMammalian cellsReactive oxygen speciesHelicobacter pylori infectionH. pylori colonizationCellular biomoleculesGSH homeostasisBacterial acquisitionCertain bacteriaVirulence factorsAntioxidant glutathioneIntracellular GSHOxidative damageOxidized GSHΓ-glutamyl transpeptidaseIsotope tracingHost tissuesOxygen speciesMoonlighting in the membrane
Hatzios S. Moonlighting in the membrane. Nature Chemical Biology 2023, 19: 1436-1437. PMID: 37349584, DOI: 10.1038/s41589-023-01369-4.Commentaries, Editorials and LettersEmerging roles of low-molecular-weight thiols at the host–microbe interface
Dumitrescu D, Hatzios S. Emerging roles of low-molecular-weight thiols at the host–microbe interface. Current Opinion In Chemical Biology 2023, 75: 102322. PMID: 37201290, PMCID: PMC10524283, DOI: 10.1016/j.cbpa.2023.102322.Peer-Reviewed Original ResearchConceptsHost-microbe interfaceLMW thiolsWeight thiolsCellular redox homeostasisRedox-active metabolitesCellular physiologyVirulence regulationRedox homeostasisHost physiologyAbundant classMicrobial metabolismHost cellsIntercellular interactionsForms of lifeInfected cellsSmall moleculesPhysiologyCellsComputational approachThiolsHomeostasisRegulationRoleMetabolismDiscoveryActivity‐based Tools for Interrogating Host Biology During Infection
Ramanathan R, Hatzios S. Activity‐based Tools for Interrogating Host Biology During Infection. Israel Journal Of Chemistry 2023, 63 PMID: 37744997, PMCID: PMC10512441, DOI: 10.1002/ijch.202200095.Peer-Reviewed Original ResearchActivity-based protein profilingPost-translational modificationsHost post-translational modificationsHost-microbe interactionsHost biologyCells senseCell signalingMicrobial mechanismsEnzyme functionProtein profilingProtein structureSide-chain reactivityChemical probesInfected cellsHost-directed therapiesPotential targetRapid modulationHost responseSignalingBiologyInfectionEnzymeProfilingPathwayPathogens
2022
A microbial transporter of the dietary antioxidant ergothioneine
Dumitrescu D, Gordon E, Kovalyova Y, Seminara A, Duncan-Lowey B, Forster E, Zhou W, Booth C, Shen A, Kranzusch P, Hatzios S. A microbial transporter of the dietary antioxidant ergothioneine. Cell 2022, 185: 4526-4540.e18. PMID: 36347253, PMCID: PMC9691600, DOI: 10.1016/j.cell.2022.10.008.Peer-Reviewed Original ResearchConceptsInter-kingdom competitionHost-associated microbesIntracellular redox homeostasisGastric pathogen Helicobacter pyloriPathogen Helicobacter pyloriRedox regulationSmall molecule antioxidantsRedox homeostasisBiosynthetic pathwayColonization advantageUnappreciated mechanismLMW thiolsHost environmentHuman faecal bacteriaWeight thiolsCertain microorganismsAntioxidant ergothioneineGastrointestinal microbesMetabolite trimethylamine N-oxideMicrobesMillimolar levelsHuman tissuesErgothioneineTrimethylamine N-oxideFecal bacteriaA propeptide-based biosensor for the selective detection of Vibrio cholerae using an environment-sensitive fluorophore
DeColli AA, Koolik IM, Seminara AB, Hatzios SK. A propeptide-based biosensor for the selective detection of Vibrio cholerae using an environment-sensitive fluorophore. Cell Chemical Biology 2022, 29: 1505-1516.e7. PMID: 36270233, DOI: 10.1016/j.chembiol.2022.09.003.Peer-Reviewed Original ResearchAn infection-induced oxidation site regulates legumain processing and tumor growth
Kovalyova Y, Bak DW, Gordon EM, Fung C, Shuman JHB, Cover TL, Amieva MR, Weerapana E, Hatzios SK. An infection-induced oxidation site regulates legumain processing and tumor growth. Nature Chemical Biology 2022, 18: 698-705. PMID: 35332331, PMCID: PMC9246868, DOI: 10.1038/s41589-022-00992-x.Peer-Reviewed Original ResearchConceptsCysteine reactivityOxidation sitesTumor growthChemical proteomicsH. pylori-infected cellsRedox-sensitive cysteinesInduces oxidationReactivityOxidationOxidation EventHuman gastric cellsCarcinogenic infectionsBacterium Helicobacter pyloriXenograft modelHelicobacter pyloriSite-specific lossGastric cellsMost cancersOxidative stressReactive oxygen speciesTumor formationOxygen speciesInfectionTumorigenesisCysteine
2020
Chemical tools for decoding redox signaling at the host–microbe interface
Gordon EM, Hatzios SK. Chemical tools for decoding redox signaling at the host–microbe interface. PLOS Pathogens 2020, 16: e1009070. PMID: 33332456, PMCID: PMC7745962, DOI: 10.1371/journal.ppat.1009070.Peer-Reviewed Original Research
2019
Functional characterization of a subtilisin-like serine protease from Vibrio cholerae
Howell M, Dumitrescu DG, Blankenship LR, Herkert D, Hatzios SK. Functional characterization of a subtilisin-like serine protease from Vibrio cholerae. Journal Of Biological Chemistry 2019, 294: 9888-9900. PMID: 31076508, PMCID: PMC6597830, DOI: 10.1074/jbc.ra119.007745.Peer-Reviewed Original ResearchConceptsSubtilisin-like enzymesSerine proteasesSubtilisin-like serine proteaseProtein domain structureDiarrheal disease choleraSerine hydrolase activityNutrient acquisitionAquatic nichesCarbohydrate-binding proteinsPathogen enzymesMature enzymeReporter proteinBiofilm assemblyFunctional characterizationNumerous enzymesDisease choleraCleavage eventsIntelectinLarge familyStepwise processingVibrio choleraeCleavage patternsEnzymeProteaseHydrolase activity
2018
Activity-Based Protein Profiling at the Host–Pathogen Interface
Kovalyova Y, Hatzios SK. Activity-Based Protein Profiling at the Host–Pathogen Interface. Current Topics In Microbiology And Immunology 2018, 420: 73-91. PMID: 30203396, DOI: 10.1007/82_2018_129.BooksConceptsActivity-based protein profilingHost-pathogen interfaceProtein profilingFunctional proteomePathogen interactionsMicrobial pathogenicityComplex proteomesEnzyme-mediated mechanismReactive amino acidsActive enzymeChemical probesAmino acidsMetabolic adaptationProteomeMicrobial infectionsCo-culture systemBiological systemsHost immunityEnzymeProfilingPathogenicityHostProbeAnimal modelsAdaptation
2017
Ferroptosis: A Regulated Cell Death Nexus Linking Metabolism, Redox Biology, and Disease
Stockwell BR, Angeli J, Bayir H, Bush AI, Conrad M, Dixon SJ, Fulda S, Gascón S, Hatzios SK, Kagan VE, Noel K, Jiang X, Linkermann A, Murphy ME, Overholtzer M, Oyagi A, Pagnussat GC, Park J, Ran Q, Rosenfeld CS, Salnikow K, Tang D, Torti FM, Torti SV, Toyokuni S, Woerpel KA, Zhang DD. Ferroptosis: A Regulated Cell Death Nexus Linking Metabolism, Redox Biology, and Disease. Cell 2017, 171: 273-285. PMID: 28985560, PMCID: PMC5685180, DOI: 10.1016/j.cell.2017.09.021.Peer-Reviewed Original ResearchConceptsRegulated cell deathCell deathPathological cell deathBiosynthesis of glutathioneNumerous biological processesTumor suppressor functionIron-dependent accumulationAreas of biologyRedox biologyFatty acid metabolismBiological processesCellular membranesAmino acidsHeat stressCoenzyme QFerroptosisAcid metabolismBiologyLethal levelsFatty acidsKidney degenerationCancer therapyDegenerative diseasesMetabolismMammals
2016
Chemoproteomic profiling of host and pathogen enzymes active in cholera
Hatzios SK, Abel S, Martell J, Hubbard T, Sasabe J, Munera D, Clark L, Bachovchin DA, Qadri F, Ryan ET, Davis BM, Weerapana E, Waldor MK. Chemoproteomic profiling of host and pathogen enzymes active in cholera. Nature Chemical Biology 2016, 12: 268-274. PMID: 26900865, PMCID: PMC4765928, DOI: 10.1038/nchembio.2025.Peer-Reviewed Original Research
2015
A single-nucleotide-polymorphism real-time PCR assay for genotyping of Mycobacterium tuberculosis complex in peri-urban Kampala
Wampande EM, Hatzios SK, Achan B, Mupere E, Nsereko M, Mayanja HK, Eisenach K, Boom WH, Gagneux S, Joloba ML, For the Tuberculosis Research Unit. A single-nucleotide-polymorphism real-time PCR assay for genotyping of Mycobacterium tuberculosis complex in peri-urban Kampala. BMC Infectious Diseases 2015, 15: 396. PMID: 26423522, PMCID: PMC4590274, DOI: 10.1186/s12879-015-1121-7.Peer-Reviewed Original ResearchConceptsMycobacterium tuberculosis complexSputum samplesTB patientsReal-time PCRSingle nucleotide polymorphismsLineage-specific single nucleotide polymorphismsSmear-positive sputum samplesMTBC strainsTuberculosis complexLineage 4Pathogenesis of tuberculosisMTBC lineagesLineage 3Indeterminate lineagePeri-urban KampalaLineages/sublineagesMTBC isolatesHigh-throughput genotypingTargeted sequencingPatientsHigh-throughput techniquesTuberculosisFurther validationRoutine genotypingNucleotide polymorphisms
2014
Autotransporters but not pAA are critical for rabbit colonization by Shiga toxin-producing Escherichia coli O104:H4
Munera D, Ritchie JM, Hatzios SK, Bronson R, Fang G, Schadt EE, Davis BM, Waldor MK. Autotransporters but not pAA are critical for rabbit colonization by Shiga toxin-producing Escherichia coli O104:H4. Nature Communications 2014, 5: 3080. PMID: 24445323, PMCID: PMC3905246, DOI: 10.1038/ncomms4080.Peer-Reviewed Original ResearchConceptsEnteroaggregative Escherichia coliIntestinal colonizationAggregative adherenceHaemolytic uraemic syndromeShiga toxin-producing Escherichia coli O104Outbreak of diarrheaIntestinal pathologyUraemic syndromeEscherichia coli O104Diarrhoeal diseaseOutbreak strainShiga toxinDiarrheaColi O104Subset of strainsAdherenceRobust colonizationCultured cellsCharacteristic patternVirulenceSyndromeDiseasePathologyColonization
2013
Osmosensory signaling in Mycobacterium tuberculosis mediated by a eukaryotic-like Ser/Thr protein kinase
Hatzios SK, Baer CE, Rustad TR, Siegrist MS, Pang JM, Ortega C, Alber T, Grundner C, Sherman DR, Bertozzi CR. Osmosensory signaling in Mycobacterium tuberculosis mediated by a eukaryotic-like Ser/Thr protein kinase. Proceedings Of The National Academy Of Sciences Of The United States Of America 2013, 110: e5069-e5077. PMID: 24309377, PMCID: PMC3876250, DOI: 10.1073/pnas.1321205110.Peer-Reviewed Original ResearchConceptsEukaryotic-like Ser/Thr protein kinasesSer/Thr protein kinaseOsmotic stressProtein kinaseCell wall remodelingAlternative σ factorsVirulence factor productionΣ factorsTranscriptional programsSecretion systemESX-1 secretion systemBroader roleWall remodelingWidespread occurrenceKinaseBacteriaPhysiological changesFactor productionPathwayDifferent microenvironmentsAntibiotic resistanceOsmosensingRegulonPknDMycobacterium tuberculosis
2012
Studies of Dynamic Protein-Protein Interactions in Bacteria Using Renilla Luciferase Complementation Are Undermined by Nonspecific Enzyme Inhibition
Hatzios SK, Ringgaard S, Davis BM, Waldor MK. Studies of Dynamic Protein-Protein Interactions in Bacteria Using Renilla Luciferase Complementation Are Undermined by Nonspecific Enzyme Inhibition. PLOS ONE 2012, 7: e43175. PMID: 22905225, PMCID: PMC3419657, DOI: 10.1371/journal.pone.0043175.Peer-Reviewed Original ResearchConceptsDynamic protein-protein interactionsProtein-protein interactionsLuciferase complementationFull-length luciferaseLive eukaryotic cellsEnteric pathogen Vibrio choleraeProtein fragment complementationSmall molecule effectsPathogen Vibrio choleraeEnzyme activityPhosphatase CheZEukaryotic cellsFragment complementationChemotaxis mutantsLuciferase fragmentsChemotactic signalingBacterial chemotaxisFusion proteinComplementationRenilla luciferaseLuciferase activityCheY3Vibrio choleraeProteinLuciferase
2011
The Regulation of Sulfur Metabolism in Mycobacterium tuberculosis
Hatzios SK, Bertozzi CR. The Regulation of Sulfur Metabolism in Mycobacterium tuberculosis. PLOS Pathogens 2011, 7: e1002036. PMID: 21811406, PMCID: PMC3141025, DOI: 10.1371/journal.ppat.1002036.Peer-Reviewed Original ResearchConceptsSulfate assimilation pathwayAssimilation pathwayDiverse environmental cuesMycobacterium tuberculosisBiosynthesis of moleculesHost immune cellsSmall molecule regulatorsSuccessful human pathogenSulfur metabolismRegulatory cuesMtb infectionGranuloma formationImmune cellsEnvironmental cuesRegulatory proteinsSulfur-containing metabolitesMolecule regulatorsAlveolar macrophagesTherapeutic interventionsMetabolism regulationBiochemical mechanismsIntracellular pathogensMetabolic adaptationHuman pathogensTuberculosis