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.
The present invention provides regulatable biocircuit systems. Such systems provide modular and tunable protein expression systems in support of the discovery and development of therapeutic modalities.
IDENTIFICATION AND TARGETED MODULATION OF GENE SIGNALING NETWORKS
申请人:CAMP4 THERAPEUTICS CORPORATION
公开号:US20210254056A1
公开(公告)日:2021-08-19
The present invention provides methods and compositions for the evaluation, alteration and/or optimization of gene signaling. Methods and systems are also provided which exploit the information generated in the identification of new targets and non-canonical signaling pathways.
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.