1
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Choury M, Wagner P, Rognan C, Blond G, Gulea M. Access to 1,4‐Thiazepanes via Gold‐Catalyzed 7‐exo‐dig Thioallylation and their Cycloisomerization to Bicyclic [4.3.1] Bridgehead‐Olefinic Systems. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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2
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Structural modification aimed for improving solubility of lead compounds in early phase drug discovery. Bioorg Med Chem 2022; 56:116614. [DOI: 10.1016/j.bmc.2022.116614] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/15/2021] [Accepted: 01/06/2022] [Indexed: 12/19/2022]
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3
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Volarić J, Szymanski W, Simeth NA, Feringa BL. Molecular photoswitches in aqueous environments. Chem Soc Rev 2021; 50:12377-12449. [PMID: 34590636 PMCID: PMC8591629 DOI: 10.1039/d0cs00547a] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 12/17/2022]
Abstract
Molecular photoswitches enable dynamic control of processes with high spatiotemporal precision, using light as external stimulus, and hence are ideal tools for different research areas spanning from chemical biology to smart materials. Photoswitches are typically organic molecules that feature extended aromatic systems to make them responsive to (visible) light. However, this renders them inherently lipophilic, while water-solubility is of crucial importance to apply photoswitchable organic molecules in biological systems, like in the rapidly emerging field of photopharmacology. Several strategies for solubilizing organic molecules in water are known, but there are not yet clear rules for applying them to photoswitchable molecules. Importantly, rendering photoswitches water-soluble has a serious impact on both their photophysical and biological properties, which must be taken into consideration when designing new systems. Altogether, these aspects pose considerable challenges for successfully applying molecular photoswitches in aqueous systems, and in particular in biologically relevant media. In this review, we focus on fully water-soluble photoswitches, such as those used in biological environments, in both in vitro and in vivo studies. We discuss the design principles and prospects for water-soluble photoswitches to inspire and enable their future applications.
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Affiliation(s)
- Jana Volarić
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Wiktor Szymanski
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Department of Radiology, Medical Imaging Center, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Nadja A Simeth
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Institute for Organic and Biomolecular Chemistry, University of Göttingen, Tammannstr. 2, 37077 Göttingen, Germany
| | - Ben L Feringa
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
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4
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Ichikawa Y, Hiramatsu M, Mita Y, Makishima M, Matsumoto Y, Masumoto Y, Muranaka A, Uchiyama M, Hashimoto Y, Ishikawa M. meta-Non-flat substituents: a novel molecular design to improve aqueous solubility in small molecule drug discovery. Org Biomol Chem 2021; 19:446-456. [PMID: 33331380 DOI: 10.1039/d0ob02083d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aqueous solubility is a key requirement for small-molecule drug candidates. Here, we investigated the regioisomer-physicochemical property relationships of disubstituted benzenes. We found that meta-isomers bearing non-flat substituents tend to possess the lowest melting point and the highest thermodynamic aqueous solubility among the regioisomers. The examination of pharmaceutical compounds containing a disubstituted benzene moiety supported the idea that the introduction of a non-flat substituent at the meta position of a benzene substructure would be a promising approach for medicinal chemists aiming to improve the thermodynamic aqueous solubility of drug candidates, even though it might not be universally effective.
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Affiliation(s)
- Yuki Ichikawa
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Michiaki Hiramatsu
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Yusuke Mita
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Makoto Makishima
- Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Yotaro Matsumoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Yui Masumoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, RIKEN Cluster for Pioneering Research (CPR), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan and Advanced Elements Chemistry Laboratory, RIKEN Cluster for Pioneering Research (CPR), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Yuichi Hashimoto
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Minoru Ishikawa
- Graduate School of Life Sciences, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
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5
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Choury M, Basilio Lopes A, Blond G, Gulea M. Synthesis of Medium-Sized Heterocycles by Transition-Metal-Catalyzed Intramolecular Cyclization. Molecules 2020; 25:E3147. [PMID: 32660105 PMCID: PMC7397130 DOI: 10.3390/molecules25143147] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 12/29/2022] Open
Abstract
Medium-sized heterocycles (with 8 to 11 atoms) constitute important structural components of several biologically active natural compounds and represent promising scaffolds in medicinal chemistry. However, they are under-represented in the screening of chemical libraries as a consequence of being difficult to access. In particular, methods involving intramolecular bond formation are challenging due to unfavorable enthalpic and entropic factors, such as transannular interactions and conformational constraints. The present review focuses on the synthesis of medium-sized heterocycles by transition-metal-catalyzed intramolecular cyclization, which despite its drawbacks remains a straightforward and attractive synthesis strategy. The obtained heterocycles differ in their nature, number of heteroatoms, and ring size. The methods are classified according to the metal used (palladium, copper, gold, silver), then subdivided according to the type of bond formed, namely carbon-carbon or carbon-heteroatom.
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Affiliation(s)
| | | | | | - Mihaela Gulea
- Université de Strasbourg, CNRS, Laboratoire d’Innovation Thérapeutique, LIT UMR 7200, F-67000 Strasbourg, France; (M.C.); (A.B.L.); (G.B.)
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6
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Garai S, Kulkarni PM, Schaffer PC, Leo LM, Brandt AL, Zagzoog A, Black T, Lin X, Hurst DP, Janero DR, Abood ME, Zimmowitch A, Straiker A, Pertwee RG, Kelly M, Szczesniak AM, Denovan-Wright EM, Mackie K, Hohmann AG, Reggio PH, Laprairie RB, Thakur GA. Application of Fluorine- and Nitrogen-Walk Approaches: Defining the Structural and Functional Diversity of 2-Phenylindole Class of Cannabinoid 1 Receptor Positive Allosteric Modulators. J Med Chem 2020; 63:542-568. [PMID: 31756109 DOI: 10.1021/acs.jmedchem.9b01142] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cannabinoid 1 receptor (CB1R) allosteric ligands hold a far-reaching therapeutic promise. We report the application of fluoro- and nitrogen-walk approaches to enhance the drug-like properties of GAT211, a prototype CB1R allosteric agonist-positive allosteric modulator (ago-PAM). Several analogs exhibited improved functional potency (cAMP, β-arrestin 2), metabolic stability, and aqueous solubility. Two key analogs, GAT591 (6r) and GAT593 (6s), exhibited augmented allosteric-agonist and PAM activities in neuronal cultures, improved metabolic stability, and enhanced orthosteric agonist binding (CP55,940). Both analogs also exhibited good analgesic potency in the CFA inflammatory-pain model with longer duration of action over GAT211 while being devoid of adverse cannabimimetic effects. Another analog, GAT592 (9j), exhibited moderate ago-PAM potency and improved aqueous solubility with therapeutic reduction of intraocular pressure in murine glaucoma models. The SAR findings and the enhanced allosteric activity in this class of allosteric modulators were accounted for in our recently developed computational model for CB1R allosteric activation and positive allosteric modulation.
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Affiliation(s)
- Sumanta Garai
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Pushkar M Kulkarni
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Peter C Schaffer
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Luciana M Leo
- Center for Substance Abuse Research, Lewis Katz School of Medicine , Temple University , Philadelphia , Pennsylvania 19140 , United States
| | - Asher L Brandt
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Pl , Saskatoon , SK S7N2Z4 , Canada
| | - Ayat Zagzoog
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Pl , Saskatoon , SK S7N2Z4 , Canada
| | - Tallan Black
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Pl , Saskatoon , SK S7N2Z4 , Canada
| | - Xiaoyan Lin
- Program in Neuroscience, Psychological and Brain Sciences, and Gill Center for Biomolecular Science , Indiana University , Bloomington , Indiana 47405 , United States
| | - Dow P Hurst
- Center for Drug Discovery , University of North Carolina Greensboro , Greensboro , North Carolina 27402 , United States
| | - David R Janero
- Department of Pharmaceutical Sciences, Bouvé College of Health Sciences, Department of Chemistry and Chemical Biology, College of Science, and Health Sciences Entrepreneurs , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Mary E Abood
- Center for Substance Abuse Research, Lewis Katz School of Medicine , Temple University , Philadelphia , Pennsylvania 19140 , United States
| | - Anaelle Zimmowitch
- Program in Neuroscience, Psychological and Brain Sciences, and Gill Center for Biomolecular Science , Indiana University , Bloomington , Indiana 47405 , United States
| | - Alex Straiker
- Program in Neuroscience, Psychological and Brain Sciences, and Gill Center for Biomolecular Science , Indiana University , Bloomington , Indiana 47405 , United States
| | - Roger G Pertwee
- School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences , University of Aberdeen , Aberdeen AB25 2ZD , Scotland, U.K
| | - Melanie Kelly
- Department of Pharmacology, Faculty of Medicine , Dalhousie University , 5850 College St , Halifax , NS , B3H4R2 , Canada
| | - Anna-Maria Szczesniak
- Department of Pharmacology, Faculty of Medicine , Dalhousie University , 5850 College St , Halifax , NS , B3H4R2 , Canada
| | - Eileen M Denovan-Wright
- Department of Pharmacology, Faculty of Medicine , Dalhousie University , 5850 College St , Halifax , NS , B3H4R2 , Canada
| | - Ken Mackie
- Program in Neuroscience, Psychological and Brain Sciences, and Gill Center for Biomolecular Science , Indiana University , Bloomington , Indiana 47405 , United States
| | - Andrea G Hohmann
- Program in Neuroscience, Psychological and Brain Sciences, and Gill Center for Biomolecular Science , Indiana University , Bloomington , Indiana 47405 , United States
| | - Patricia H Reggio
- Center for Drug Discovery , University of North Carolina Greensboro , Greensboro , North Carolina 27402 , United States
| | - Robert B Laprairie
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Pl , Saskatoon , SK S7N2Z4 , Canada.,Department of Pharmacology, Faculty of Medicine , Dalhousie University , 5850 College St , Halifax , NS , B3H4R2 , Canada
| | - Ganesh A Thakur
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences , Northeastern University , Boston , Massachusetts 02115 , United States
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7
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Abstract
The urea functionality is inherent to numerous bioactive compounds, including a variety of clinically approved therapies. Urea containing compounds are increasingly used in medicinal chemistry and drug design in order to establish key drug-target interactions and fine-tune crucial drug-like properties. In this perspective, we highlight physicochemical and conformational properties of urea derivatives. We provide outlines of traditional reagents and chemical procedures for the preparation of ureas. Also, we discuss newly developed methodologies mainly aimed at overcoming safety issues associated with traditional synthesis. Finally, we provide a broad overview of urea-based medicinally relevant compounds, ranging from approved drugs to recent medicinal chemistry developments.
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Affiliation(s)
- Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Margherita Brindisi
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907, United States.,Department of Excellence of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
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8
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Machine Learning Models for the Prediction of Chemotherapy-Induced Peripheral Neuropathy. Pharm Res 2019; 36:35. [DOI: 10.1007/s11095-018-2562-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 12/17/2018] [Indexed: 01/01/2023]
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9
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Nishimura T, Kawai J, Oshima Y, Kikuchi H. Removal of the E-Olefin Barrier of Humulene Leading to Unnatural Terpenoid-like Skeletons. Org Lett 2018; 20:7317-7320. [DOI: 10.1021/acs.orglett.8b03259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Takehiro Nishimura
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Junya Kawai
- Mushroom Research Laboratory, Hokuto Corporation, Nagano, 381-0008, Japan
| | - Yoshiteru Oshima
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Haruhisa Kikuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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10
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Gerry CJ, Schreiber SL. Chemical probes and drug leads from advances in synthetic planning and methodology. Nat Rev Drug Discov 2018; 17:333-352. [PMID: 29651105 PMCID: PMC6707071 DOI: 10.1038/nrd.2018.53] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Screening of small-molecule libraries is a productive method for identifying both chemical probes of disease-related targets and potential starting points for drug discovery. In this article, we focus on strategies such as diversity-oriented synthesis that aim to explore novel areas of chemical space efficiently by populating small-molecule libraries with compounds containing structural features that are typically under-represented in commercially available screening collections. Drawing from more than a decade's worth of examples, we highlight how the design and synthesis of such libraries have been enabled by modern synthetic chemistry, and we illustrate the impact of the resultant chemical probes and drug leads in a wide range of diseases.
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Affiliation(s)
- Christopher J Gerry
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- The Broad Institute of Harvard & MIT, Cambridge, MA, USA
| | - Stuart L Schreiber
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- The Broad Institute of Harvard & MIT, Cambridge, MA, USA
- Howard Hughes Medical Institute, Cambridge, MA, USA
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11
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Pennington LD, Moustakas DT. The Necessary Nitrogen Atom: A Versatile High-Impact Design Element for Multiparameter Optimization. J Med Chem 2017; 60:3552-3579. [PMID: 28177632 DOI: 10.1021/acs.jmedchem.6b01807] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is a continued desire in biomedical research to reduce the number and duration of design cycles required to optimize lead compounds into high-quality chemical probes or safe and efficacious drug candidates. The insightful application of impactful molecular design elements is one approach toward achieving this goal. The replacement of a CH group with a N atom in aromatic and heteroaromatic ring systems can have many important effects on molecular and physicochemical properties and intra- and intermolecular interactions that can translate to improved pharmacological profiles. In this Perspective, the "necessary nitrogen atom" is shown to be a versatile high-impact design element for multiparameter optimization, wherein ≥10-, 100-, or 1000-fold improvement in a variety of key pharmacological parameters can be realized.
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Affiliation(s)
- Lewis D Pennington
- Medicinal Chemistry and ‡Modeling and Informatics, Alkermes, Plc , 852 Winter Street, Waltham, Massachusetts 02451-1420, United States
| | - Demetri T Moustakas
- Medicinal Chemistry and ‡Modeling and Informatics, Alkermes, Plc , 852 Winter Street, Waltham, Massachusetts 02451-1420, United States
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12
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Duan H, Lee JW, Moon SW, Arora D, Li Y, Lim HY, Wang W. Discovery, Synthesis, and Evaluation of 2,4-Diaminoquinazolines as a Novel Class of Pancreatic β-Cell-Protective Agents against Endoplasmic Reticulum (ER) Stress. J Med Chem 2016; 59:7783-800. [PMID: 27505441 DOI: 10.1021/acs.jmedchem.6b00041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Pancreatic insulin-producing β-cell dysfunction and death plays central roles in the onset and progression of both type 1 and type 2 diabetes. Current antidiabetic drugs cannot halt the ongoing progression of β-cell dysfunction and death. In diabetes, a major cause for the decline in β-cell function and survival is endoplasmic reticulum (ER) stress. Here, we identified quinazoline derivatives as a novel class of β-cell protective agents against ER stress-induced dysfunction and death. A series of quinazoline derivatives were synthesized from dichloroquiazoline utilizing a sequence of nucleophilic reactions. Through SAR optimization, 2,4-diaminoquinazoline compound 9c markedly protects β-cells against ER stress-induced dysfunction and death with 80% maximum rescue activity and an EC50 value of 0.56 μM. Importantly, 9c restores the ER stress-impaired glucose-stimulated insulin secretion response and survival in primary human islet β-cells. We showed that 9c protects β-cells by alleviating ER stress through the suppression of the induction of key genes of the unfolded protein response and apoptosis.
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Affiliation(s)
- Hongliang Duan
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , 825 NE 13th Street, Oklahoma City, Oklahoma 73104, United States
| | - Jae Wook Lee
- Natural Product Research Center, Korea Institute of Science and Technology , 679 Saimdang-ro, Gangneung, Gangwon-do 210-340, Republic of Korea.,Department of Biological Chemistry, Korea University of Science and Technology (UST) , Daejeon 305-333, Republic of Korea
| | - Sung Won Moon
- Natural Product Research Center, Korea Institute of Science and Technology , 679 Saimdang-ro, Gangneung, Gangwon-do 210-340, Republic of Korea
| | - Daleep Arora
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , 825 NE 13th Street, Oklahoma City, Oklahoma 73104, United States
| | - Yu Li
- Department of Medicine, Division of Endocrinology, Department of Physiology, Harold Hamm Diabetes Center, The University of Oklahoma Health Science Center , 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Hui-Ying Lim
- Department of Physiology, The University of Oklahoma Health Science Center , 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Weidong Wang
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , 825 NE 13th Street, Oklahoma City, Oklahoma 73104, United States.,Department of Medicine, Division of Endocrinology, Department of Physiology, Harold Hamm Diabetes Center, The University of Oklahoma Health Science Center , 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
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13
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Hiramatsu M, Ichikawa Y, Tomoshige S, Makishima M, Muranaka A, Uchiyama M, Yamaguchi T, Hashimoto Y, Ishikawa M. Improvement in Aqueous Solubility of Retinoic Acid Receptor (RAR) Agonists by Bending the Molecular Structure. Chem Asian J 2016; 11:2210-7. [DOI: 10.1002/asia.201600744] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/01/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Michiaki Hiramatsu
- Institute of Molecular and Cellular Biosciences; The University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan
| | - Yuki Ichikawa
- Institute of Molecular and Cellular Biosciences; The University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan
| | - Shusuke Tomoshige
- Institute of Molecular and Cellular Biosciences; The University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan
| | - Makoto Makishima
- Nihon University; School of Medicine; 30-1 Oyaguchi-kamicho Itabashi-ku Tokyo 173-8610 Japan
| | - Atsuya Muranaka
- Elements Chemistry Laboratory and; Advanced Elements Chemistry Research Team; Center for Sustainable Resource Science (CSRS); RIKEN; 2-1 Hirosawa Wako-shi Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Elements Chemistry Laboratory and; Advanced Elements Chemistry Research Team; Center for Sustainable Resource Science (CSRS); RIKEN; 2-1 Hirosawa Wako-shi Saitama 351-0198 Japan
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takao Yamaguchi
- Institute of Molecular and Cellular Biosciences; The University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan
| | - Yuichi Hashimoto
- Institute of Molecular and Cellular Biosciences; The University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan
| | - Minoru Ishikawa
- Institute of Molecular and Cellular Biosciences; The University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-0032 Japan
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14
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Duan H, Arora D, Li Y, Setiadi H, Xu D, Lim HY, Wang W. Identification of 1,2,3-triazole derivatives that protect pancreatic β cells against endoplasmic reticulum stress-mediated dysfunction and death through the inhibition of C/EBP-homologous protein expression. Bioorg Med Chem 2016; 24:2621-30. [PMID: 27157393 DOI: 10.1016/j.bmc.2016.03.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 03/20/2016] [Accepted: 03/27/2016] [Indexed: 02/05/2023]
Abstract
The C/EBP-homologous protein (CHOP) acts as a mediator of endoplasmic reticulum (ER) stress-induced pancreatic insulin-producing β cell death, a key element in the pathogenesis of diabetes. Chemicals that inhibit the expression of CHOP might therefore protect β cells from ER stress-induced apoptosis and prevent or ameliorate diabetes. Here, we used high-throughput screening to identify a series of 1,2,3-triazole amide derivatives that inhibit ER stress-induced CHOP-luciferase reporter activity. Our SAR studies indicate that compounds with an N,1-diphenyl-5-methyl-1H-1,2,3-triazole-4-carboxamide backbone potently protect β cell against ER stress. Several representative compounds inhibit ER stress-induced up-regulation of CHOP mRNA and protein, without affecting the basal level of CHOP expression. We further show that a 1,2,3-triazole derivative 4e protects β cell function and survival against ER stress in a CHOP-dependent fashion, as it is inactive in CHOP-deficient β cells. Finally, we show that 4e significantly lowers blood glucose levels and increases concomitant β cell survival and number in a streptozotocin-induced diabetic mouse model. Identification of small molecule inhibitors of CHOP expression that prevent ER stress-induced β cell dysfunction and death may provide a new modality for the treatment of diabetes.
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Affiliation(s)
- Hongliang Duan
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK 73104, United States
| | - Daleep Arora
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK 73104, United States
| | - Yu Li
- Department of Medicine, Division of Endocrinology, Department of Physiology, Harold Hamm Diabetes Center, The University of Oklahoma Health Science Center, 941 Stanton L. Young Blvd., Oklahoma City, OK 73104, United States; Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK 73104, United States
| | - Hendra Setiadi
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK 73104, United States
| | - Depeng Xu
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK 73104, United States
| | - Hui-Ying Lim
- Aging and Metabolism Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK 73104, United States
| | - Weidong Wang
- Department of Medicine, Division of Endocrinology, Department of Physiology, Harold Hamm Diabetes Center, The University of Oklahoma Health Science Center, 941 Stanton L. Young Blvd., Oklahoma City, OK 73104, United States; Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK 73104, United States.
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15
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Chou DHC, Vetere A, Choudhary A, Scully SS, Schenone M, Tang A, Gomez R, Burns SM, Lundh M, Vital T, Comer E, Faloon PW, Dančík V, Ciarlo C, Paulk J, Dai M, Reddy C, Sun H, Young M, Donato N, Jaffe J, Clemons PA, Palmer M, Carr SA, Schreiber SL, Wagner BK. Kinase-Independent Small-Molecule Inhibition of JAK-STAT Signaling. J Am Chem Soc 2015; 137:7929-34. [PMID: 26042473 DOI: 10.1021/jacs.5b04284] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Phenotypic cell-based screening is a powerful approach to small-molecule discovery, but a major challenge of this strategy lies in determining the intracellular target and mechanism of action (MoA) for validated hits. Here, we show that the small-molecule BRD0476, a novel suppressor of pancreatic β-cell apoptosis, inhibits interferon-gamma (IFN-γ)-induced Janus kinase 2 (JAK2) and signal transducer and activation of transcription 1 (STAT1) signaling to promote β-cell survival. However, unlike common JAK-STAT pathway inhibitors, BRD0476 inhibits JAK-STAT signaling without suppressing the kinase activity of any JAK. Rather, we identified the deubiquitinase ubiquitin-specific peptidase 9X (USP9X) as an intracellular target, using a quantitative proteomic analysis in rat β cells. RNAi-mediated and CRISPR/Cas9 knockdown mimicked the effects of BRD0476, and reverse chemical genetics using a known inhibitor of USP9X blocked JAK-STAT signaling without suppressing JAK activity. Site-directed mutagenesis of a putative ubiquitination site on JAK2 mitigated BRD0476 activity, suggesting a competition between phosphorylation and ubiquitination to explain small-molecule MoA. These results demonstrate that phenotypic screening, followed by comprehensive MoA efforts, can provide novel mechanistic insights into ostensibly well-understood cell signaling pathways. Furthermore, these results uncover USP9X as a potential target for regulating JAK2 activity in cellular inflammation.
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Affiliation(s)
- Danny Hung-Chieh Chou
- ‡Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | | | - Amit Choudhary
- §Society of Fellows, Harvard University, 78 Mount Auburn Street, Cambridge, Massachusetts 02138, United States
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Hanshi Sun
- #Department of Internal Medicine, University of Michigan Comprehensive Cancer Center, 1500 E. Medical Center Drive, Ann Arbor, Michigan 48103, United States
| | - Matthew Young
- ∇Department of Pharmacology, University of Michigan Medical School, 1150 W. Medical Center Drive, Ann Arbor, Michigan 48109, United States
| | - Nicholas Donato
- #Department of Internal Medicine, University of Michigan Comprehensive Cancer Center, 1500 E. Medical Center Drive, Ann Arbor, Michigan 48103, United States
| | | | | | | | | | - Stuart L Schreiber
- ‡Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
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16
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Scully SS, Zheng SL, Wagner BK, Schreiber SL. Synthesis of oxazocenones via gold(I)-catalyzed 8-endo-dig hydroalkoxylation of alkynamides. Org Lett 2015; 17:418-21. [PMID: 25569027 PMCID: PMC4323038 DOI: 10.1021/ol503273v] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Several benzoxazocenones have been found to exhibit novel cellular activities. In the present study, we report a gold(I)-catalyzed 8-endo-dig hydroalkoxylation reaction of alkynamides to access analogous oxazocenone scaffolds. This methodology provided an advanced intermediate, which was elaborated to a des-benzo analog of a bioactive benzoxazocenone.
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Affiliation(s)
- Stephen S Scully
- Center for the Science of Therapeutics, Broad Institute , 415 Main Street, Cambridge, Massachusetts 02142, United States
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17
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Dahllöf MS, Christensen DP, Harving M, Wagner BK, Mandrup-Poulsen T, Lundh M. HDAC inhibitor-mediated beta-cell protection against cytokine-induced toxicity is STAT1 Tyr701 phosphorylation independent. J Interferon Cytokine Res 2014; 35:63-70. [PMID: 25062500 DOI: 10.1089/jir.2014.0022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Histone deacetylase (HDAC) inhibition protects pancreatic beta-cells against apoptosis induced by the combination of the proinflammatory cytokines interleukin (IL)-1β and interferon (IFN)-γ. Decreased expression of cell damage-related genes is observed on the transcriptional level upon HDAC inhibition using either IL-1β or IFN-γ alone. Whereas HDAC inhibition has been shown to regulate NFκB-activity, related primarily to IL-1β signaling, it is unknown whether the inhibition of HDACs affect IFN-γ signaling in beta-cells. Further, in non-beta-cells, there is a dispute whether HDAC inhibition regulates IFN-γ signaling at the level of STAT1 Tyr701 phosphorylation. Using different small molecule HDAC inhibitors with varying class selectivity, INS-1E wild type and stable HDAC1-3 knockdown pancreatic INS-1 cell lines, we show that IFN-γ-induced Cxcl9 and iNos expression as well as Cxcl9 and GAS reporter activity were decreased by HDAC inhibition in a STAT1 Tyr701 phosphorylation-independent fashion. In fact, knockdown of HDAC1 increased IFN-γ-induced STAT1 phosphorylation.
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Affiliation(s)
- Mattias S Dahllöf
- 1 Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen, Denmark
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18
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Vetere A, Choudhary A, Burns SM, Wagner BK. Targeting the pancreatic β-cell to treat diabetes. Nat Rev Drug Discov 2014; 13:278-89. [PMID: 24525781 DOI: 10.1038/nrd4231] [Citation(s) in RCA: 201] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Diabetes is a leading cause of morbidity and mortality worldwide, and predicted to affect over 500 million people by 2030. However, this growing burden of disease has not been met with a comparable expansion in therapeutic options. The appreciation of the pancreatic β-cell as a central player in the pathogenesis of both type 1 and type 2 diabetes has renewed focus on ways to improve glucose homeostasis by preserving, expanding and improving the function of this key cell type. Here, we provide an overview of the latest developments in this field, with an emphasis on the most promising strategies identified to date for treating diabetes by targeting the β-cell.
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Affiliation(s)
- Amedeo Vetere
- Chemical Biology Program, Center for the Science of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA
| | - Amit Choudhary
- 1] Chemical Biology Program, Center for the Science of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA. [2] Society of Fellows, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Sean M Burns
- Medical & Population Genetics Program, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA
| | - Bridget K Wagner
- Chemical Biology Program, Center for the Science of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA
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