Identification of a novel selective inhibitor of mutant isocitrate dehydrogenase 1 at allosteric site by docking-based virtual screeningElectronic supplementary information (ESI) available. See DOI: 10.1039/c6ra21617j
Isocitrate dehydrogenase 1 (IDH1), catalyzing oxidative decarboxylation of isocitrate to provide energy for aerobic organisms, is an essential enzyme in the tricarboxylic acid cycle. However, mutant IDH1 (mIDH1) produces oncometabolite d -2-hydroxyglutarate (D2HG) and has recently been confirmed in...
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Main Authors | , , , , , , , , , |
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Format | Journal Article |
Language | English |
Published |
11.10.2016
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Online Access | Get full text |
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Summary: | Isocitrate dehydrogenase 1 (IDH1), catalyzing oxidative decarboxylation of isocitrate to provide energy for aerobic organisms, is an essential enzyme in the tricarboxylic acid cycle. However, mutant IDH1 (mIDH1) produces oncometabolite
d
-2-hydroxyglutarate (D2HG) and has recently been confirmed in several types of cancers, particularly in glioma and acute myeloid leukemia. Herein a docking-based virtual screening (VS) of SPECS library was conducted for the allosteric site of mIDH1. The cellular evaluation of the hit compounds led to the identification of
FX-03
as a novel selective mIDH1 inhibitor at allosteric site with IC
50
values of 55.50 μM and 68.38 μM in HEK-293T cells transfected with IDH1 R132H and IDH1 R132C, respectively. Importantly,
FX-03
owned significant selectivity with no inhibition in HEK-293T cells transfected with IDH1 WT. These findings indicate that VS of mIDH1's allosteric site represents a useful strategy for discovery of selective mIDH1 inhibitors and
FX-03
deserves further optimization as a lead compound in future study.
Optimal docking was employed to screen SPECS compound library, followed by cellular assays of mutant and wild type of IDH1. |
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Bibliography: | 10.1039/c6ra21617j Electronic supplementary information (ESI) available. See DOI |
ISSN: | 2046-2069 |
DOI: | 10.1039/c6ra21617j |