Effect of several antimicrobial agents on ciprofloxacin uptake by human neutrophils.
The effect of antimicrobial agent active against anaerobes, gram-positive cocci and fungi on the uptake of ciprofloxacin by human neutrophils (PMNs) was evaluated. In the presence of therapeutic extracellular concentrations of these agents, ciprofloxacin reached high intracellular concentrations [cellular-to-extracellular ratio (C/E) greater than or equal to 2.9], this value being higher in the presence of amphotericin B (C/E 6.3 +/- 0.9). The intracellular penetration of ciprofloxacin was higher when PMNs were stimulated with opsonized zymosan (C/E greater than or equal to 5.6). In summary, none of the antimicrobial agents tested significantly impaired the uptake of ciprofloxacin by human PMNs.
García
I
I
Department of Microbiology, Faculty of Medicine, University of Seville, Spain.
Pascual
A
A
Perea
E J
EJ
D000890:Anti-Infective Agents / Q000494:pharmacology*; D002939:Ciprofloxacin / Q000097:blood*; D005470:Fluorometry / Q000379:methods; D006801:Humans; D009504:Neutrophils / Q000187:drug effects / Q000378:metabolism*
D000890:Anti-Infective Agents; D002939:Ciprofloxacin