Effect of pulmonary surfactant on antimicrobial activity in vitro.

R Schwameis, Z Erdogan-Yildirim, M Manafi, M A Zeitlinger, S Strommer, R Sauermann

Antimicrobial agents and chemotherapy 2013 Oct

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Time-kill curve experiments were performed with linezolid, doripenem, tigecycline, moxifloxacin, and daptomycin against Staphylococcus aureus and with colistin, moxifloxacin, and doripenem against Pseudomonas aeruginosa to evaluate the effect of porcine pulmonary surfactant on antimicrobial activity. Pulmonary surfactant significantly impaired the activities of moxifloxacin and colistin. When antibiotics are being developed for respiratory tract infections, the method described here might be used to preliminarily quantify the effect of pulmonary surfactant on antimicrobial activity.

Citation

R Schwameis, Z Erdogan-Yildirim, M Manafi, M A Zeitlinger, S Strommer, R Sauermann. Effect of pulmonary surfactant on antimicrobial activity in vitro. Antimicrobial agents and chemotherapy. 2013 Oct;57(10):5151-4