ArticleCurrent microbiology2022
Tobramycin Stress Induced Differential Gene Expression in Acinetobacter baumannii.
Article in Current microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 14 citations in OpenAlex.
- Article
- Antibiotic Persister Cells in Acinetobacter baumannii: Overview of Molecular Mechanisms and Removal Strategies.Environmental microbiology · 2025Review
- History shapes regulatory and evolutionary responses to tigecycline in two reference strains ofMicrobiology (Reading, England) · 2025Article
- OmpW overexpression in meropenem-exposedFrontiers in microbiology · 2025Article
- The HicAB System: Characteristics and Biological Roles of an Underappreciated Toxin-Antitoxin System.International journal of molecular sciences · 2024Review
- Antibacterial activity and mechanism of X33 antimicrobial oligopeptide againstSynthetic and systems biotechnology · 2024Article
- Selection and validation of reference genes suitable for gene expression analysis by Reverse Transcription Quantitative real-time PCR in Acinetobacter baumannii.Scientific reports · 2024Article
- Outer Membrane Porins Contribute to Antimicrobial Resistance in Gram-Negative Bacteria.Microorganisms · 2023Review
- Increased ompW and ompA expression and higher virulence of Acinetobacter baumannii persister cells.BMC microbiology · 2023Article
- The secondary metabolite hydrogen cyanide protectsFrontiers in microbiology · 2023Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Acinetobacter baumannii is a multidrug-resistant bacteria responsible for nosocomial infections with significant fatality rates globally. Therapeutic failure and relapse of infection has been associated with persister cells formation which can also lead to resistance in A. baumannii. In the present study, we observed that A. baumannii ATCC 17978 in exponential phase survived lethal concentrations of amikacin, rifampicin and ciprofloxacin by generating persister cells but was unable to survive tobramycin treatment. The transcriptome of A. baumannii ATCC 17978 was analyzed following exposure to a high concentration of tobramycin (10 × MIC) for a short period of time to study the possible mechanisms responsible for lethality. Tobramycin reduced the expression of genes involved in energy production (nuoH, nuoN, nuoM, cydA, sucC), oxidative stress protection (tauD, cysD), and nutrition uptake (ompW) significantly. In addition, hemerythrin (non-heme di-iron oxygen-binding protein) was found to be the most downregulated gene in response to tobramycin which needs to be further studied for its role in susceptibility to antibiotics. Tobramycin upregulated the expression of genes that are mainly involved in stress response (leucine catabolism, DNA repair and HicAB toxin-antitoxin system). The differentially expressed genes highlighted in the study provided insight into the probable molecular mechanism of tobramycin-induced cell death and revealed some novel targets that can be explored further for their potential to control A. baumannii.
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