PMID- 32435413 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210514 IS - 1948-5875 (Print) IS - 1948-5875 (Electronic) IS - 1948-5875 (Linking) VI - 11 IP - 5 DP - 2020 May 14 TI - Structure-Guided Identification of DNMT3B Inhibitors. PG - 971-976 LID - 10.1021/acsmedchemlett.0c00011 [doi] AB - Methyltransferase 3 beta (DNMT3B) inhibitors that interfere with cancer growth are emerging possibilities for treatment of melanoma. Herein we identify small molecule inhibitors of DNMT3B starting from a homology model based on a DNMT3A crystal structure. Virtual screening by docking led to purchase of 15 compounds, among which 5 were found to inhibit the activity of DNMT3B with IC(50) values of 13-72 muM in a fluorogenic assay. Eight analogues of 7, 10, and 12 were purchased to provide 2 more active compounds. Compound 11 is particularly notable as it shows good selectivity with no inhibition of DNMT1 and 22 muM potency toward DNMT3B. Following additional de novo design, exploratory synthesis of 17 analogues of 11 delivered 5 additional inhibitors of DNMT3B with the most potent being 33h with an IC(50) of 8.0 muM. This result was well confirmed in an ultrahigh-performance liquid chromatography (UHPLC)-based analytical assay, which yielded an IC(50) of 4.8 muM. Structure-activity data are rationalized based on computed structures for DNMT3B complexes. CI - Copyright (c) 2020 American Chemical Society. FAU - Newton, Ana S AU - Newton AS AD - Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States. FAU - Faver, John C AU - Faver JC AD - Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States. FAU - Micevic, Goran AU - Micevic G AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. FAU - Muthusamy, Viswanathan AU - Muthusamy V AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. FAU - Kudalkar, Shalley N AU - Kudalkar SN AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. FAU - Bertoletti, Nicole AU - Bertoletti N AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. FAU - Anderson, Karen S AU - Anderson KS AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. FAU - Bosenberg, Marcus W AU - Bosenberg MW AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. AD - Department of Dermatology, Department of Medicine, Department of Pharmacology, Department of Pathology, and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut 06520-8066, United States. FAU - Jorgensen, William L AU - Jorgensen WL AD - Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States. LA - eng GR - R01 GM032136/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20200207 PL - United States TA - ACS Med Chem Lett JT - ACS medicinal chemistry letters JID - 101521073 PMC - PMC7236258 COIS- The authors declare no competing financial interest. EDAT- 2020/05/22 06:00 MHDA- 2020/05/22 06:01 PMCR- 2021/05/14 CRDT- 2020/05/22 06:00 PHST- 2020/01/08 00:00 [received] PHST- 2020/02/07 00:00 [accepted] PHST- 2020/05/22 06:00 [entrez] PHST- 2020/05/22 06:00 [pubmed] PHST- 2020/05/22 06:01 [medline] PHST- 2021/05/14 00:00 [pmc-release] AID - 10.1021/acsmedchemlett.0c00011 [doi] PST - epublish SO - ACS Med Chem Lett. 2020 Feb 7;11(5):971-976. doi: 10.1021/acsmedchemlett.0c00011. eCollection 2020 May 14.