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Title: Discovery of Potent 2-Aryl-6,7-dihydro-5$$H$$-pyrrolo[1,2-$$a$$]imidazoles as WDR5-WIN-Site Inhibitors Using Fragment-Based Methods and Structure-Based Design

Journal Article · · Journal of Medicinal Chemistry

WDR5 is a chromatin-regulatory scaffold protein overexpressed in various cancers and a potential epigenetic drug target for the treatment of mixed-lineage leukemia. In this a paper, we describe the discovery of potent and selective WDR5-WINsite inhibitors using fragment-based methods and structure-based design. NMR-based screening of a large fragment library identified several chemically distinct hit series that bind to the WIN site within WDR5. Members of a 6,7-dihydro-5$$H$$pyrrolo[1,2-$$a$$]imidazole fragment class were expanded using a structure-based design approach to arrive at lead compounds with dissociation constants <10 nM and micromolar cellular activity against an AML-leukemia cell line. These compounds represent starting points for the discovery of clinically useful WDR5 inhibitors for the treatment of cancer.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Institutes of Health (NIH); USDOE Office of Science (SC); Michigan Economic Development Corporation and Michigan Technology Tri-Corridor; National Cancer Institute (NCI)
Grant/Contract Number:
1S-10RR025677-01; AC02-06CH11357; 085P1000817; HHSN261200800001E; CA200709; CA68485
OSTI ID:
1499757
Journal Information:
Journal of Medicinal Chemistry, Vol. 61, Issue 13; ISSN 0022-2623
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 31 works
Citation information provided by
Web of Science

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Cited By (5)

Targeting WDR5: A WINning Anti-Cancer Strategy? journal January 2019
Direct defluorinative amidation–hydrolysis reaction of gem -difluoroalkenes with N , N -dimethylformamide, and primary and secondary amines journal January 2018
Fragment screening for a protein-protein interaction inhibitor to WDR5 journal November 2019
Interaction of the oncoprotein transcription factor MYC with its chromatin cofactor WDR5 is essential for tumor maintenance journal November 2019
Expression of WD Repeat Domain 5 (WDR5) is Associated with Progression and Reduced Prognosis in Papillary Thyroid Carcinoma journal May 2019