ACTIVITIES OF CLARITHROMYCIN, SULFISOXAZOLE, AND RIFABUTIN AGAINST MYCOBACTERIUM-AVIUM COMPLEX MULTIPLICATION WITHIN HUMAN MACROPHAGES

被引:73
作者
PERRONNE, C [1 ]
GIKAS, A [1 ]
TRUFFOTPERNOT, C [1 ]
GROSSET, J [1 ]
POCIDALO, JJ [1 ]
VILDE, JL [1 ]
机构
[1] GRP HOSP PITIE SALPETRIERE,CENT BACTERIOL VIROL LAB,F-75634 PARIS 13,FRANCE
关键词
D O I
10.1128/AAC.34.8.1508
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The activities of clarithromycin, sulfisoxazole, and rifabutin against three virulent strains of Mycobacterium avium complex isolated from patients with acquired immunodeficiency syndrome were evaluated in a model of intracellular infection. Human monocyte-derived macrophages were infected at day 6 of culture with M. avium complex. Intracellular bacteria were counted 60 min after inoculation. Extra- and intracellular bacteria were counted at days 4 and 7 after inoculation. The concentrations used were 4 μg of clarithromycin per ml (KICs for the three strains, 4, 4, and 4 μg/ml), 50 μg of sulfisoxazole per ml (MICs, 50, 25, and 25 μg/ml), and 0.5 μg of rifabutin per ml (MICs, 2, 0.5, and 0.5 μg/ml). compared with controls, clarithromycin and rifabutin slowed the intracellular replication of the three strains (at day 7 after inoculation, P was <0.01 for the first strain and <0.001 for the two others). Sulfisoxazole was ineffective against the three strains. Clarithromycin was as effective as rifabutin. Clarithromycin plus rifabutin was as effective as each single agent. Clarithromycin plus sulfisoxazole was as effective as clarithromycin alone.
引用
收藏
页码:1508 / 1511
页数:4
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