Journal of Antimicrobial Chemotherapy, Vol 40, 841-845, Copyright © 1997 by The British Society for Antimicrobial Chemotherapy
N Venkataprasad, MR Jacobs, JL Johnson, G Klopman and JJ Ellner
The ability to inhibit the in-vitro growth of mycobacteria within human
monocytes is a useful screening assay for novel chemotherapeutic agents. In
this study the MICs of a panel of new quinolones were determined by the
broth microdilution method for two strains of Mycobacterium avium. Sixteen
such compounds with MIC90s ranging from 2 to >32 mg/L were subsequently
selected for the 7 day monocyte assay using ciprofloxacin for comparison.
The degree of inhibition of intracellular growth correlated with the MICs.
PD 139586, PD 143289, PD 135144, PD 119421 and PD 131575 were the most
active new agents with activities superior to those of ciprofloxacin and
sparfloxacin.
ORIGINAL ARTICLES
Activity of new quinolones against intracellular Mycobacterium avium in human monocytes [published erratum appears in J Antimicrob Chemother 1998 Jun;41(6):674]
Division of Infectious Diseases, Case Western Reserve University, and University Hospitals of Cleveland, OH 44106, USA. nvenkata@rpms.ac.uk
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