Structure-Based Approach to the Development of Potent and Selective Inhibitors of Dihydrofolate Reductase from Cryptosporidium
摘要:
Cryptosporidiosis is an emerging infectious disease that can be life-threatening in ail immune-compromised individual and causes gastrointestinal distress lasting up to 2 weeks in an immune-competent individual. There are few therapeutics available for effectively treating this disease. We have been exploring dihydrofolate reductase (DHFR) as a potential target in Cryptosporidium. On the basis of the structure of the DHFR enzyme from C. hominis, we have developed a novel scaffold that led to the discovery of potent (38 nM) and efficient inhibitors of this enzyme. Recently, we have advanced these inhibitors to the next stage of development. Using the Structures of both the protozoal and human enzymes. we have developed inhibitors with nanomolar potency (1.1 nM) against the pathogenic enzyme and high levels (1273-fold) of selectivity over the human enzyme.
Structure-Based Approach to the Development of Potent and Selective Inhibitors of Dihydrofolate Reductase from Cryptosporidium
摘要:
Cryptosporidiosis is an emerging infectious disease that can be life-threatening in ail immune-compromised individual and causes gastrointestinal distress lasting up to 2 weeks in an immune-competent individual. There are few therapeutics available for effectively treating this disease. We have been exploring dihydrofolate reductase (DHFR) as a potential target in Cryptosporidium. On the basis of the structure of the DHFR enzyme from C. hominis, we have developed a novel scaffold that led to the discovery of potent (38 nM) and efficient inhibitors of this enzyme. Recently, we have advanced these inhibitors to the next stage of development. Using the Structures of both the protozoal and human enzymes. we have developed inhibitors with nanomolar potency (1.1 nM) against the pathogenic enzyme and high levels (1273-fold) of selectivity over the human enzyme.
HETEROCYCLIC ANALOGS OF PROPARGYL-LINKED INHIBITORS OF DIHYDROFOLATE REDUCTASE
申请人:University of Connecticut
公开号:EP2776404B1
公开(公告)日:2016-07-06
US8426432B2
申请人:——
公开号:US8426432B2
公开(公告)日:2013-04-23
US8853228B2
申请人:——
公开号:US8853228B2
公开(公告)日:2014-10-07
[EN] HETEROCYCLIC ANALOGS OF PROPARGYL-LINKED INHIBITORS OF DIHYDROFOLATE REDUCTASE<br/>[FR] ANALOGUE HÉTÉROCYCLIQUE D'INHIBITEURS DU DIHYDROFOLATE LIÉS À PROPARGYLE RÉDUCTASE
申请人:UNIV CONNECTICUT
公开号:WO2013070620A1
公开(公告)日:2013-05-16
The compositions and methods described herein disclose the design, synthesis and testing of compounds that act as inhibitors of DHFR. The basic scaffold of these inhibitors includes a 2,4-diaminopyrimidine ring with a propargyl linker to another substituted aryl, bicyclo or heteroaryl ring. These DHFR inhibitors are potent and selective for many different pathogenic organisms, including the DHFR enzyme from bacteria such as Bacillus anthracis and methicillin-resistant Staphylococcus aureus, fungi such as Candida glabrata, Candida albicans and Cryptococcus neoformans and protozoa such as Cryptosporidium hominis and Toxoplasma gondii. These compounds and other similar compounds are also potent against the mammalian enzyme and may be useful as anti-cancer therapeutics.
Structure-Based Approach to the Development of Potent and Selective Inhibitors of Dihydrofolate Reductase from <i>Cryptosporidium</i>
作者:David B. Bolstad、Erin S. D. Bolstad、Kathleen M. Frey、Dennis L. Wright、Amy C. Anderson
DOI:10.1021/jm8009124
日期:2008.11.13
Cryptosporidiosis is an emerging infectious disease that can be life-threatening in ail immune-compromised individual and causes gastrointestinal distress lasting up to 2 weeks in an immune-competent individual. There are few therapeutics available for effectively treating this disease. We have been exploring dihydrofolate reductase (DHFR) as a potential target in Cryptosporidium. On the basis of the structure of the DHFR enzyme from C. hominis, we have developed a novel scaffold that led to the discovery of potent (38 nM) and efficient inhibitors of this enzyme. Recently, we have advanced these inhibitors to the next stage of development. Using the Structures of both the protozoal and human enzymes. we have developed inhibitors with nanomolar potency (1.1 nM) against the pathogenic enzyme and high levels (1273-fold) of selectivity over the human enzyme.