Postantifungal effects of echinocandin, azole, and polyene antifungal agents against Candida albicans and Cryptococcus neoformans

被引:148
作者
Ernst, EJ [1 ]
Klepser, ME [1 ]
Pfaller, MA [1 ]
机构
[1] Univ Iowa, Coll Pharm, Dept Pathol, Iowa City, IA 52242 USA
关键词
D O I
10.1128/AAC.44.4.1108-1111.2000
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The postantifungal effect (PAFE) of fluconazole, MK-0991, LY303366, and amphotericin B was determined against isolates of Candida albicans and Cryptococcus neoformans. Concentrations ranging from 0.125 to 4 times the MIC were tested following exposure to the antifungal for 0.25 to 1 h. Combinations of azole and echinocandin antifungals (MK-0991 and LY303366) were tested against C. neoformans. Fluconazole displayed no measurable PAFE against Candida albicans or Cryptococcus neoformans, either alone or in combination with either echinocandin antifungal. MK-0991, LY303366, and amphotericin B displayed a prolonged PAFE of greater than 12 h against Candida spp. when tested at concentrations above the MIC for the organism and 0 to 2 h when tested at concentrations below the MIC for the organism.
引用
收藏
页码:1108 / 1111
页数:4
相关论文
共 12 条
[1]   In vitro preclinical evaluation studies with the echinocandin antifungal MK-0991 (L-743,872) [J].
Bartizal, K ;
Gill, CJ ;
Abruzzo, GK ;
Flattery, AM ;
Kong, L ;
Scott, PM ;
Smith, JG ;
Leighton, CE ;
Bouffard, A ;
Dropinski, JF ;
Balkovec, J .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1997, 41 (11) :2326-2332
[2]  
Craig WA, 1996, POSTANTIBIOTIC EFFEC
[3]   In vitro pharmacodynamic properties of MK-0991 determined by time-kill methods [J].
Ernst, EJ ;
Klepser, ME ;
Ernst, ME ;
Messer, SA ;
Pfaller, MA .
DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE, 1999, 33 (02) :75-80
[4]   Antifungal dynamics of LY 303366, an investigational echinocandin B analog, against Candida ssp. [J].
Ernst, ME ;
Klepser, ME ;
Wolfe, EJ ;
Pfaller, MA .
DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE, 1996, 26 (3-4) :125-131
[5]   Influence of test conditions on antifungal time-kill curve results: Proposal for standardized methods [J].
Klepser, ME ;
Ernst, EJ ;
Lewis, RE ;
Ernst, ME ;
Pfaller, MA .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1998, 42 (05) :1207-1212
[6]   Growth medium effect on the antifungal activity of LY 303366 [J].
Klepser, ME ;
Ernst, EJ ;
Ernst, ME ;
Pfaller, MA .
DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE, 1997, 29 (04) :227-231
[7]   Antifungal pharmacodynamic characteristics of fluconazole and amphotericin B against Cryptococcus neoformans [J].
Klepser, ME ;
Wolfe, EJ ;
Pfaller, MA .
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY, 1998, 41 (03) :397-401
[8]   Evaluation of endpoints for antifungal susceptibility determinations with LY303366 [J].
Klepser, ME ;
Ernst, EJ ;
Ernst, ME ;
Messer, SA ;
Pfaller, MA .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1998, 42 (06) :1387-1391
[9]   Antifungal pharmacodynamic characteristics of fluconazole and amphotericin B tested against Candida albicans [J].
Klepser, ME ;
Wolfe, EJ ;
Jones, RN ;
Nightingale, CH ;
Pfaller, MA .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1997, 41 (06) :1392-1395
[10]   ACTIVITY OF FLUCONAZOLE - POSTANTIFUNGAL EFFECT, EFFECTS OF LOW CONCENTRATIONS AND OF PRETREATMENT ON THE SUSCEPTIBILITY OF CANDIDA-ALBICANS TO LEUKOCYTES [J].
MINGUEZ, F ;
CHIU, ML ;
LIMA, JE ;
NIQUE, R ;
PRIETO, J .
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY, 1994, 34 (01) :93-100