ABSTRACT: The first reported case of an intra-abdominal abscess caused by KPC-2-producing hypervirulent Klebsiella pneumoniae with porin mutations successfully treated with Imipenem/relebactam in a Japanese patient.
Project description:Genome sequencing and assembly of imipenem and imipenem-relebactam resistant clinical isolates of Pseudomonas aeruginosa
| PRJEB87800 | ENA
Project description:In vivo emergence of Imipenem/relebactam resistance in KPC-producing Klebsiella pneumoniae mediated by increased blaKPC copy number and porins
Project description:The nosocomial pathogen Acinetobacter baumannii is a frequent cause of hospital acquired infections worldwide, and a challenge for treatment due to its evolved resistance to antibiotics, including carbapenems. To gain insight on A. baumannii antibiotic resistance mechanisms, we analyzed the protein interaction network of a multidrug-resistant A. baumannii clinical strain Ab5075. Using in vivo chemical cross-linking and mass spectrometry, we identified 2,068 non-redundant cross-linked peptide pairs containing 245 intra- and 398 inter- molecular interactions. Outer membrane proteins OmpA and YiaD, and carbapenemase Oxa-23 are hubs of the identified interaction network. Eighteen novel interactors of Oxa-23 were identified. Interactions of Oxa-23 with outer membrane porins OmpA and CarO were verified with co-immunoprecipitation analysis. Furthermore, transposon mutagenesis of oxa-23 or interactors of Oxa-23 demonstrated changes in meropenem or imipenem sensitivity in Ab5075. These results provide the first view of a porin-localized toxin inactivation model and increase understanding of bacterial antibiotic resistance mechanisms.
2016-12-22 | PXD004236 | Pride
Project description:Multi-omic profiling for intra-abdominal hypertension
| PRJNA756796 | ENA
Project description:atypical hypervirulent Klebsiella pneumoniae that causes liver abscess and endocarditis