N-Hydroxybenzimidazole Inhibitors of the Transcription Factor LcrF in Yersinia: Novel Antivirulence Agents
摘要:
LcrF, a multiple adaptational response (MAR) transcription factor, regulates virulence in Yersinia pestis and Yersinia pseudotuberculosis. In a search for small molecule inhibitors of LcrF, an acrylic amide series of N-hydroxybenzimidazoles was synthesized and the SAR (structure-activity relationship) was examined, Selected test compounds demonstrated inhibitory activity in a primary cell-free LcrF-DNA binding assay as well as in a secondary whole cell assay (type III secretion system dependent Y. pseudotuberculosis cytotoxicity assay). The inhibitors exhibited no measurable antibacterial activity in vitro, confirming that they do not target bacterial growth. These results demonstrate that N-hydroxy-benzimidazole inhibitors, exemplified by 14, 22, and 36, are effective antivirulence agents and have the potential to prevent infections caused by Yersinia spp.
Transcription Factor Modulating Compounds and Methods of Use Thereof
申请人:Alekshun Michael N.
公开号:US20090131481A1
公开(公告)日:2009-05-21
Substituted benzimidazole compounds useful as anti-infectives that decrease resistance, virulence, or growth of microbes are provided. Methods of using substituted benzimidazole compounds, in, e.g., reducing virulence and infectivity, inhibiting biofilms and treating bacterial infections are also provided.
Transcription factor modulating compounds and methods of use thereof
申请人:Alekshun Michael N.
公开号:US20090170812A1
公开(公告)日:2009-07-02
Substituted benzoimidazole compounds useful as anti-infectives that decrease resistance, virulence, or growth of microbes are provided. Methods of making and using substituted benzoimidazole compounds, as well as pharmaceutical preparations thereof, in, e.g., reducing antibiotic resistance and inhibiting biofilms.
[EN] TRANSCRIPTION FACTOR MODULATING COMPOUNDS AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS MODULANT LE FACTEUR DE TRANSCRIPTION ET LEURS PROCÉDÉS D'UTILISATION
申请人:PARATEK PHARM INNC
公开号:WO2009005551A2
公开(公告)日:2009-01-08
Substituted benzoimidazole compounds useful as anti-infectives that decrease resistance, virulence, or growth of microbes are provided. Methods of using substituted benzimidazole compounds, in, e.g., reducing virulence and infectivity, inhibiting biofilms and treating bacterial infections.
<i>N</i>-Hydroxybenzimidazole Inhibitors of the Transcription Factor LcrF in <i>Yersinia</i>: Novel Antivirulence Agents
作者:Oak K. Kim、Lynne K. Garrity-Ryan、Victoria J. Bartlett、Mark C. Grier、Atul K. Verma、Gabriel Medjanis、Janice E. Donatelli、Ann B. Macone、S. Ken Tanaka、Stuart B. Levy、Michael N. Alekshun
DOI:10.1021/jm9006577
日期:2009.9.24
LcrF, a multiple adaptational response (MAR) transcription factor, regulates virulence in Yersinia pestis and Yersinia pseudotuberculosis. In a search for small molecule inhibitors of LcrF, an acrylic amide series of N-hydroxybenzimidazoles was synthesized and the SAR (structure-activity relationship) was examined, Selected test compounds demonstrated inhibitory activity in a primary cell-free LcrF-DNA binding assay as well as in a secondary whole cell assay (type III secretion system dependent Y. pseudotuberculosis cytotoxicity assay). The inhibitors exhibited no measurable antibacterial activity in vitro, confirming that they do not target bacterial growth. These results demonstrate that N-hydroxy-benzimidazole inhibitors, exemplified by 14, 22, and 36, are effective antivirulence agents and have the potential to prevent infections caused by Yersinia spp.