pao1

ML318 is a biaryl nitrile PvdQ acylase inhibitor (IC50 of 20 nM for binding in the acyl-binding site). ML318 inhibits P. aeruginosa (PAO1) with IC50 of 19 μM. ML318 prevents pyoverdine production and limits the growth of P. aeruginosa under iron-limiting

Zidebactam (WCK-5107) is an effective β-lactamase inhibitor. Zidebactam also is a penicillin-binding protein2 inhibitor (IC50: 0.26 μg mL).

Ceftolozane sulfate (FR-264205) is a cephalosporin antibiotic with broad-spectrum antimicrobial activity, inhibits P. aeruginosa PAO1, inhibits Pseudomonas aeruginosa, and is used in the study of pneumonia.

Zidebactam sodium salt is a potent inhibitor of β-lactamase, and also is an inhibitor of penicillin-binding protein2 (PBP2)(IC50 of 0.26 μg mL).

Antibiofilm agent prodrug 1 (Compound 5c) demonstrates antibacterial properties by inhibiting biofilm formation and iron uptake. It effectively suppresses Pseudomonas aeruginosa PAO1 with a minimum inhibitory concentration (MIC) of 1.07 μM. In addition, Antibiofilm agent prodrug 1 exhibits anti-infective activity in Caenorhabditis elegans, enhancing the survival rate of the nematodes.

Antibacterialsynergist 3 is a dual-function biofilm inhibitor with an IC50 of 0.40 μM for PAO1 and 1.45 μM for PA14. It reduces virulence in Pseudomonas aeruginosa PAO1 by inhibiting the quorum sensing (QS) system and inducing iron deficiency. Additionally, Antibacterialsynergist 3 enhances the efficacy of Tobramycin and Ciprofloxacin in a mouse wound infection model. This compound is useful for research on Pseudomonas aeruginosa infections.

N-acetyltyramine is a metabolite of the biogenic amine tyramine . It enhances cytotoxicity of doxorubicin in resistant P388 murine leukemia cells with an IC50 value of 0.13 μg ml compared with an IC50 value of 0.48 μg ml for doxorubicin alone.

CAY10711 is a substituted diamine that produces rapid bactericidal activity against both Gram-positive and Gram-negative bacteria, including methicillin-resistant S. aureus (MRSA) and stationary-phase bacteria. It displays MIC99 values of 2.9, 11.5, 2.9, and 2.9 μM against S. aureus RN4220, P. aeruginosa PAO1, E. coli ANS1, and MRSA 10082B, respectively. CAY10711 reduces biofilm formation and promotes biofilm dispersal in P. aeruginosa. It is synergistic with kanamycin and has limited adverse effects against mammalian cells or C. elegans development, survival, or reproduction.

YXL-13 is a highly effective inhibitor of Pseudomonas aeruginosa (PAO1), with an IC50 value of 3.686 μM. It effectively hinders the expression of virulence factors and inhibits biofilm formation in PAO1. Moreover, YXL-13 significantly diminishes both the pathogenicity and drug resistance of PAO1 by inhibiting the quorum sensing (QS) system. Thus, YXL-13 holds great potential for studying antibacterial properties [1].

Quorum Sensing-IN-2 (compound 23e) is a quorum sensing inhibitor that reduces bacterial pathogenicity without affecting growth, exhibits minimal hemolytic activity, effectively inhibits bacterial infections, and shows a synergistic effect when combined with Ciprofloxacin in a P. aeruginosa PAO1-infected bacteremia model [1].

SMAP 29, a bactericidal antimicrobial peptide and a cleavage product from the C-terminus of an ovine cathelicidin prepropeptide, is effective against P. aeruginosa strain PAO1 in both low- and high-salt conditions, as demonstrated in an energy-dependent luminescence assay with half-maximal effective concentrations (EC50s) of 0.05 and 0.06 µM, respectively. Additionally, it induces hemolysis in ovine red blood cells in a concentration-dependent manner.