In vitro activity of novel rifamycins against gram-positive clinical isolates

被引:9
作者
Murphy, Christopher K.
Karginova, Elena
Sahm, Dan
Rothstein, David M.
机构
[1] ActivBiot Inc, Lexington, MA 02421 USA
[2] Eurofins Medinet Inc, Anti Infect Serv, Herndon, VA 20171 USA
关键词
rifampin; rifalazil; ABI-0043; staphylococci; streptococci; MIC;
D O I
10.1038/ja.2007.72
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
We describe novel rifamycins that have improved activity, compared with rifampin, against clinical isolates of staphylococci and streptococci, with MIC(90)s of 0.008 and 0.0005 mu g/ml, respectively. This enhanced antibacterial activity, along with their potential lack of drug-drug interactions, are considerations that suggest the potential of these novel rifamycins in combination therapy to treat serious Gram-positive infections.
引用
收藏
页码:572 / 576
页数:5
相关论文
共 21 条
[1]   Characterization of mutations in the rpoB gene that confer rifampin resistance in Staphylococcus aureus [J].
Aubry-Damon, H ;
Soussy, CJ ;
Courvalin, P .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1998, 42 (10) :2590-2594
[2]   Structural mechanism for rifampicin inhibition of bacterial RNA polymerase [J].
Campbell, EA ;
Korzheva, N ;
Mustaev, A ;
Murakami, K ;
Nair, S ;
Goldfarb, A ;
Darst, SA .
CELL, 2001, 104 (06) :901-912
[3]  
Clinical and Laboratory Standards Institute, 2006, M100S16 CLIN LAB STA
[4]   IN-VITRO AND IN-VIVO ANTIBACTERIAL ACTIVITIES OF KRM-1648 AND KRM-1657, NEW RIFAMYCIN DERIVATIVES [J].
FUJII, K ;
TSUJI, A ;
MIYAZAKI, S ;
YAMAGUCHI, K ;
GOTO, S .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1994, 38 (05) :1118-1122
[5]   RIFAMPICIN IN FREE COMBINATION WITH OTHER ANTI-MICROBIAL DRUGS IN NON-TB INFECTIONS - CLINICAL-DATA ON 650 PATIENTS - (A REVIEW) [J].
KISSLING, M ;
BERGAMINI, N .
CHEMOTHERAPY, 1981, 27 (05) :368-402
[6]   Emergence of resistance to rifampin and rifalazil in Chlamydophila pneumoniae and Chlamydia trachomatis [J].
Kutlin, A ;
Kohlhoff, S ;
Roblin, P ;
Hammerschlag, MR ;
Riska, P .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 2005, 49 (03) :903-907
[7]   TREATMENT OF EXPERIMENTAL STAPHYLOCOCCAL INFECTIONS - EFFECT OF RIFAMPIN ALONE AND IN COMBINATION ON DEVELOPMENT OF RIFAMPIN RESISTANCE [J].
MANDELL, GL ;
MOORMAN, DR .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1980, 17 (04) :658-662
[8]   Activity of novel benzoxazinorifamycins against rifamycin-resistant Streptococcus pyogenes [J].
Mullin, S ;
Rothstein, DM ;
Murphy, CK .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 2006, 50 (05) :1908-1909
[9]   In vitro activity of novel rifamycins against rifamycin-resistant Staphylococcus aureus [J].
Murphy, CK ;
Mullin, S ;
Osburne, MS ;
van Duzer, J ;
Siedlecki, J ;
Yu, X ;
Kerstein, K ;
Cynamon, M ;
Rothstein, DM .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 2006, 50 (03) :827-834
[10]   Efficacy of novel rifamycin derivatives against rifamycin-sensitive and -resistant Staphylococcus aureus isolates in murine models of infection [J].
Rothstein, David M. ;
Farquhar, Ronald S. ;
Sirokman, Klari ;
Sondergaard, Karen L. ;
Hazlett, Charles ;
Doye, Angelia A. ;
Gwathmey, Judith K. ;
Mullin, Steve ;
van Duzer, John ;
Murphy, Christopher K. .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 2006, 50 (11) :3658-3664