Role of Pseudomonas aeruginosa PhoP-PhoQ in resistance to antimicrobial cationic peptides and aminoglycosides

ELA Macfarlane, A Kwasnicka… - Microbiology, 2000 - microbiologyresearch.org
Resistance to the polycationic antibiotic polymyxin B and expression of the outer-membrane
protein OprH in the opportunistic pathogen Pseudomonas aeruginosa both involve the PhoP …

PhoP–PhoQ homologues in Pseudomonas aeruginosa regulate expression of the outer‐membrane protein OprH and polymyxin B resistance

ELA Macfarlane, A Kwasnicka, MM Ochs… - Molecular …, 1999 - Wiley Online Library
Rapid adaptation to environmental challenge is essential for the survival of many bacterial
species, and is often effectively mediated by two‐component regulatory systems. Part of the …

Cationic antimicrobial peptides activate a two‐component regulatory system, PmrA‐PmrB, that regulates resistance to polymyxin B and cationic antimicrobial peptides …

JB McPhee, S Lewenza… - Molecular …, 2003 - Wiley Online Library
The two‐component regulatory system PhoP‐PhoQ of Pseudomonas aeruginosa regulates
resistance to cationic antimicrobial peptides, polymyxin B and aminoglycosides in response …

Pseudomonas aeruginosa outer membrane protein OprH: expression from the cloned gene and function in EDTA and gentamicin resistance

A Bell, M Bains, RE Hancock - Journal of bacteriology, 1991 - Am Soc Microbiol
Overexpression of major outer membrane protein OprH of Pseudomonas aeruginosa as a
result of mutation (in strain H181) or adaptation to low Mg2+ concentrations (in parent strain …

Role of Pseudomonas aeruginosa outer membrane protein OprH in polymyxin and gentamicin resistance: isolation of an OprH-deficient mutant by gene replacement …

ML Young, M Bains, A Bell… - Antimicrobial agents and …, 1992 - Am Soc Microbiol
The cloned oprH gene of Pseudomonas aeruginosa was mutated by inserting a 1.4-kbp
fragment that encodes tetracycline resistance. This mutated gene was then incorporated into …

Polyamines Induce Resistance to Cationic Peptide, Aminoglycoside, and Quinolone Antibiotics in Pseudomonas aeruginosa PAO1

DH Kwon, CD Lu - Antimicrobial agents and chemotherapy, 2006 - Am Soc Microbiol
Pseudomonas aeruginosa, a gram-negative bacterium of human pathogens, is noted for its
environmental versatility, enormous metabolic capacity, and resistance to antibiotics …

Contribution of the PhoP-PhoQ and PmrA-PmrB Two-Component Regulatory Systems to Mg2+-Induced Gene Regulation in Pseudomonas aeruginosa

JB McPhee, M Bains, G Winsor, S Lewenza… - Journal of …, 2006 - Am Soc Microbiol
When grown in divalent cation-limited medium, Pseudomonas aeruginosa becomes
resistant to cationic antimicrobial peptides and polymyxin B. This resistance is regulated by …

Polymyxin Resistance of Pseudomonas aeruginosa phoQ Mutants Is Dependent on Additional Two-Component Regulatory Systems

AD Gutu, N Sgambati, P Strasbourger… - Antimicrobial agents …, 2013 - Am Soc Microbiol
Pseudomonas aeruginosa can develop resistance to polymyxin as a consequence of
mutations in the PhoPQ regulatory system, mediated by covalent lipid A modification …

The Pseudomonas aeruginosa PhoP-PhoQ two-component regulatory system is induced upon interaction with epithelial cells and controls cytotoxicity and …

SL Gellatly, B Needham, L Madera, MS Trent… - Infection and …, 2012 - Am Soc Microbiol
The adaptation of Pseudomonas aeruginosa to its environment, including the host, is tightly
controlled by its network of regulatory systems. The two-component regulatory system …

A Two-Component Regulatory System Interconnects Resistance to Polymyxins, Aminoglycosides, Fluoroquinolones, and β-Lactams in Pseudomonas aeruginosa

C Muller, P Plésiat, K Jeannot - Antimicrobial agents and …, 2011 - Am Soc Microbiol
Constitutive overexpression of the active efflux system MexXY/OprM is a major cause of
resistance to aminoglycosides, fluoroquinolones, and cefepime in clinical strains of …