PMID- 32268014 OWN - NLM STAT- MEDLINE DCOM- 20210614 LR - 20210618 IS - 1860-7187 (Electronic) IS - 1860-7179 (Print) IS - 1860-7179 (Linking) VI - 15 IP - 12 DP - 2020 Jun 17 TI - Bicyclic Imidazolium Inhibitors of Gli Transcription Factor Activity. PG - 1044-1049 LID - 10.1002/cmdc.202000169 [doi] AB - Gli transcription factors within the Hedgehog (Hh) signaling pathway direct key events in mammalian development and promote a number of human cancers. Current therapies for Gli-driven tumors target Smoothened (SMO), a G protein-coupled receptor-like protein that functions upstream in the Hh pathway. Although these drugs can have remarkable clinical efficacy, mutations in SMO and downstream Hh pathway components frequently lead to chemoresistance. In principle, therapies that act at the level of Gli proteins, through direct or indirect mechanisms, would be more efficacious. We therefore screened 325 120 compounds for their ability to block the constitutive Gli activity induced by loss of Suppressor of Fused (SUFU), a scaffolding protein that directly inhibits Gli function. Our studies reveal a family of bicyclic imidazolium derivatives that can inhibit Gli-dependent transcription without affecting the ciliary trafficking or proteolytic processing of these transcription factors. We anticipate that these chemical antagonists will be valuable tools for investigating the mechanisms of Gli regulation and developing new strategies for targeting Gli-driven cancers. CI - (c) 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Hom, Marisa E AU - Hom ME AD - Department of Chemical and Systems Biology, Stanford University, 269 Campus Dr., CCSR 3155, Stanford, CA 94305, USA. FAU - Ondrus, Alison E AU - Ondrus AE AD - Department of Chemical and Systems Biology, Stanford University, 269 Campus Dr., CCSR 3155, Stanford, CA 94305, USA. AD - Present address: Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA. FAU - Sakata-Kato, Tomoyo AU - Sakata-Kato T AD - Department of Chemical and Systems Biology, Stanford University, 269 Campus Dr., CCSR 3155, Stanford, CA 94305, USA. AD - Present address: Global Health Drug Discovery Institute, Beijing, 100192, China. FAU - Rack, Paul G AU - Rack PG AD - Department of Chemical and Systems Biology, Stanford University, 269 Campus Dr., CCSR 3155, Stanford, CA 94305, USA. AD - Present address: Thermo Fisher Scientific, Carlsbad, CA 92008, USA. FAU - Chen, James K AU - Chen JK AUID- ORCID: 0000-0002-9220-8436 AD - Department of Chemical and Systems Biology, Stanford University, 269 Campus Dr., CCSR 3155, Stanford, CA 94305, USA. AD - Department of Developmental Biology, Stanford University, 269 Campus Dr., CCSR 3155, Stanford, CA 94305, USA. AD - Department of Chemistry, Stanford University, 269 Campus Dr., CCSR 3155, Stanford, CA 94305, USA. LA - eng GR - R01 GM113100/GM/NIGMS NIH HHS/United States GR - R35 GM127030/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20200526 PL - Germany TA - ChemMedChem JT - ChemMedChem JID - 101259013 RN - 0 (Gli1 protein, mouse) RN - 0 (Heterocyclic Compounds, 2-Ring) RN - 0 (Heterocyclic Compounds, 3-Ring) RN - 0 (Imidazoles) RN - 0 (Zinc Finger Protein GLI1) SB - IM MH - Animals MH - Heterocyclic Compounds, 2-Ring/chemical synthesis/pharmacology MH - Heterocyclic Compounds, 3-Ring/chemical synthesis/pharmacology MH - Imidazoles/chemical synthesis/*pharmacology MH - Membrane Potential, Mitochondrial/drug effects MH - Mice MH - Mitochondria/drug effects MH - Molecular Structure MH - NIH 3T3 Cells MH - Oxidative Phosphorylation/drug effects MH - Signal Transduction/drug effects MH - Structure-Activity Relationship MH - Zinc Finger Protein GLI1/*antagonists & inhibitors PMC - PMC7311267 MID - NIHMS1584089 OTO - NOTNLM OT - Gli OT - Hedgehog signaling OT - cancer OT - small-molecule inhibitor OT - transcription factor COIS- Conflict of Interest The authors declare no conflict of interest. EDAT- 2020/04/09 06:00 MHDA- 2021/06/16 06:00 PMCR- 2021/06/17 CRDT- 2020/04/09 06:00 PHST- 2020/03/16 00:00 [received] PHST- 2020/04/09 06:00 [pubmed] PHST- 2021/06/16 06:00 [medline] PHST- 2020/04/09 06:00 [entrez] PHST- 2021/06/17 00:00 [pmc-release] AID - 10.1002/cmdc.202000169 [doi] PST - ppublish SO - ChemMedChem. 2020 Jun 17;15(12):1044-1049. doi: 10.1002/cmdc.202000169. Epub 2020 May 26.