Pires, João; Siriwardena, Thissa N.; Stach, Michaela; Tinguely, Regula; Kasraian Fard, Sara; Luzzaro, Francesco; Leib, Stephen; Darbre, Tamis; Reymond, Jean-Louis; Endimiani, Andrea (2015). In Vitro Activity of the Novel Antimicrobial Peptide Dendrimer G3KL against Multidrug-Resistant Acinetobacter baumannii and Pseudomonas aeruginosa. Antimicrobial agents and chemotherapy, 59(12), pp. 7915-7918. American Society for Microbiology 10.1128/AAC.01853-15
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The in vitro activity of the novel antimicrobial peptide dendrimer G3KL was evaluated against 32 Acinetobacter baumannii (including 10 OXA-23, 7 OXA-24, and 11 OXA-58 carbapenemase producers) and 35 Pseudomonas aeruginosa (including 18 VIM and 3 IMP carbapenemase producers) strains and compared to the activities of standard antibiotics. Overall, both species collections showed MIC50/90 values of 8/8 μg/ml and minimum bactericidal concentrations at which 50% or 90% of strains tested are killed (MBC50/90) of 8/8 μg/ml. G3KL is a promising molecule with antibacterial activity against multidrug-resistant and extensively drug-resistant A. baumannii and P. aeruginosa isolates.