2024
Durlobactam in combination with β-lactams to combat Mycobacterium abscessus
Shin E, Dousa K, Taracila M, Bethel C, Nantongo M, Nguyen D, Akusobi C, Kurz S, Plummer M, Daley C, Holland S, Rubin E, Bulitta J, Boom W, Kreiswirth B, Bonomo R. Durlobactam in combination with β-lactams to combat Mycobacterium abscessus. Antimicrobial Agents And Chemotherapy 2024, 69: e01174-24. PMID: 39714147, PMCID: PMC11823594, DOI: 10.1128/aac.01174-24.Peer-Reviewed Original ResearchSynergistic effects of sulopenem in combination with cefuroxime or durlobactam against Mycobacterium abscessus
Dousa K, Shin E, Kurz S, Plummer M, Nantongo M, Bethel C, Taracila M, Nguyen D, Kreiswith B, Daley C, Remy K, Holland S, Bonomo R. Synergistic effects of sulopenem in combination with cefuroxime or durlobactam against Mycobacterium abscessus. MBio 2024, 15: e00609-24. PMID: 38742824, PMCID: PMC11237399, DOI: 10.1128/mbio.00609-24.Peer-Reviewed Original ResearchConceptsD,D-carboxypeptidaseMinimum inhibitory concentrationB-lactamPenicillin-binding-proteinCell wall synthesisL,D-transpeptidasesResistance to common antibioticsLowest minimum inhibitory concentrationWall synthesisCystic fibrosisD-carboxypeptidaseMass spectrometry analysisB-lactamaseThioester bondRate of treatment failureCell-based assaysMultiple antibioticsB-lactam ringsCommon antibioticsD-transpeptidasesB-lactamase inhibitorsCysteine residuesTime-kill studiesStructural lung diseaseMultidrug-resistant tuberculosis
2021
“One-Two Punch”: Synergistic ß-Lactam Combinations for Mycobacterium abscessus and Target Redundancy in the Inhibition of Peptidoglycan Synthesis Enzymes
Nguyen D, Dousa K, Kurz S, Brown S, Drusano G, Holland S, Kreiswirth B, Boom W, Daley C, Bonomo R. “One-Two Punch”: Synergistic ß-Lactam Combinations for Mycobacterium abscessus and Target Redundancy in the Inhibition of Peptidoglycan Synthesis Enzymes. Clinical Infectious Diseases 2021, 73: 1532-1536. PMID: 34113990, PMCID: PMC8677594, DOI: 10.1093/cid/ciab535.Peer-Reviewed Original ResearchConceptsPeptidoglycan synthesis enzymesMinimum inhibitory concentration of clinical isolatesB-lactamCombination of imipenemSynthesis enzymesSynergistic in vitroClinical isolatesMinimum inhibitory concentrationMycobacterium abscessusClinical trialsMycobacterial infectionAbscessusEnzymeCeftarolineImipenem
2015
Kinetic and Structural Characterization of the Interaction of 6‑Methylidene Penem 2 with the β‑Lactamase from Mycobacterium tuberculosis
Hazra S, Kurz S, Wolff K, Nguyen L, Bonomo R, Blanchard J. Kinetic and Structural Characterization of the Interaction of 6‑Methylidene Penem 2 with the β‑Lactamase from Mycobacterium tuberculosis. Biochemistry 2015, 54: 5657-5664. PMID: 26237118, PMCID: PMC4795174, DOI: 10.1021/acs.biochem.5b00698.Peer-Reviewed Original ResearchConceptsB-lactamaseB-lactamPenem 2Inhibit BlaCActive site residuesB-lactam antibioticsMycobacterium tuberculosisCultures of M. tuberculosisRing openingSite residuesBoronic acidsConstitutive expressionSignificant growth inhibitionStructural characterizationMass spectrometryCompound formsCovalent complexM. tuberculosisGrowth inhibitionBinding inhibitorAcylated formEnzymeRingCompounds
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