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Kim HW, Lee JW, Shim SH. Biosynthesis, biological activities, and structure-activity relationships of decalin-containing tetramic acid derivatives isolated from fungi. Nat Prod Rep 2024. [PMID: 38916377 DOI: 10.1039/d4np00013g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Covering: up to December 2023Decalin-containing tetramic acid derivatives, especially 3-decalinoyltetramic acids (3-DTAs), are commonly found as fungal secondary metabolites. Numerous biological activities of this class of compounds, such as antibiotic, antiviral, antifungal, antiplasmodial, and antiprotozoal properties, have been the subject of ongoing research. For this reason, these molecules have attracted a lot of interest from the scientific community and various efforts including semi-synthesis, co-culturing with bacteria and biosynthetic gene sequencing have been made to obtain more derivatives. In this review, 3-DTAs are classified into four major groups based on the absolute configuration of the bicyclic decalin ring. Their biosynthetic pathways, various biological activities, and structure-activity relationship are then introduced.
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Affiliation(s)
- Hyun Woo Kim
- College of Pharmacy, Duksung Women's University, Seoul 01369, Republic of Korea
| | - Jin Woo Lee
- College of Pharmacy, Dongguk University, Goyang, Republic of Korea.
| | - Sang Hee Shim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.
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2
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Watanabe K, Sato M, Osada H. Recent advances in the chemo-biological characterization of decalin natural products and unraveling of the workings of Diels-Alderases. Fungal Biol Biotechnol 2022; 9:9. [PMID: 35488322 PMCID: PMC9055775 DOI: 10.1186/s40694-022-00139-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/15/2022] [Indexed: 11/19/2022] Open
Abstract
The Diels–Alder (DA) reaction refers to a [4 + 2] cycloaddition reaction that falls under the category of pericyclic reactions. It is a reaction that allows regio- and stereo-selective construction of two carbon–carbon bonds simultaneously in a concerted manner to generate a six-membered ring structure through a six-electron cyclic transition state. The DA reaction is one of the most widely applied reactions in organic synthesis, yet its role in biological systems has been debated intensely over the last four decades. A survey of secondary metabolites produced by microorganisms suggests strongly that many of the compounds possess features that are likely formed through DA reactions, and most of them are considered to be catalyzed by enzymes that are commonly referred to as Diels–Alderases (DAases). In recent years, especially over the past 10 years or so, we have seen an accumulation of a substantial body of work that substantiates the argument that DAases indeed exist and play a critical role in the biosynthesis of complex metabolites. This review will cover the DAases involved in the biosynthesis of decalin moieties, which are found in many of the medicinally important natural products, especially those produced by fungi. In particular, we will focus on a subset of secondary metabolites referred to as pyrrolidine-2-one-bearing decalin compounds and discuss the decalin ring stereochemistry and the biological activities of those compounds. We will also look into the genes and enzymes that drive the biosynthetic construction of those complex natural products, and highlight the recent progress made on the structural and mechanistic understanding of DAases, especially regarding how those enzymes exert stereochemical control over the [4 + 2] cycloaddition reactions they catalyze.
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Affiliation(s)
- Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan.
| | - Michio Sato
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Hiroyuki Osada
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan. .,Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science, Wako-shi, 351-0198, Japan.
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3
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Sakai K, Unten Y, Kimishima A, Nonaka K, Chinen T, Sakai K, Usui T, Shiomi K, Iwatsuki M, Murai M, Miyoshi H, Asami Y, Ōmura S. Traminines A and B, produced by Fusarium concentricum, inhibit oxidative phosphorylation in Saccharomyces cerevisiae mitochondria. J Ind Microbiol Biotechnol 2021; 48:6338109. [PMID: 34343309 PMCID: PMC8788869 DOI: 10.1093/jimb/kuab051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/29/2021] [Indexed: 11/13/2022]
Abstract
Two new tetramic acid derivatives, traminines A (1) and B (2), were isolated from a culture broth of Fusarium concentricum FKI-7550 by bioassay-guided fractionation using multidrug-sensitive Saccharomyces cerevisiae 12geneΔ0HSR-iERG6. The chemical structures of 1 and 2 were elucidated by NMR studies. Compounds 1 and 2 inhibited the growth of the multidrug-sensitive yeast strain on nonfermentable medium containing glycerol, but not on fermentable medium containing glucose. These results strongly suggest that they target mitochondrial machineries presiding over ATP production via oxidative phosphorylation. Throughout the assay monitoring overall ADP-uptake/ATP-release in yeast mitochondria, 1 and 2 were shown to inhibit one or more enzymes involving oxidative phosphorylation. Based on biochemical characterization, we found that the interference with oxidative phosphorylation by 1 is attributable to the dual inhibition of complex III and FoF1-ATPase, whereas that by 2 is solely due to the inhibition of complex III.
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Affiliation(s)
- Katsuyuki Sakai
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yufu Unten
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Takumi Chinen
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kazunari Sakai
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Takeo Usui
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kazuro Shiomi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Masatoshi Murai
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideto Miyoshi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Satoshi Ōmura
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
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4
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An Allosteric Interaction Network Promotes Conformation State-Dependent Eviction of the Nas6 Assembly Chaperone from Nascent 26S Proteasomes. Cell Rep 2020; 26:483-495.e5. [PMID: 30625330 PMCID: PMC6344052 DOI: 10.1016/j.celrep.2018.12.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/15/2018] [Accepted: 12/11/2018] [Indexed: 12/04/2022] Open
Abstract
The 26S proteasome is the central ATP-dependent protease in eukaryotes and is essential for organismal health. Proteasome assembly is mediated by several dedicated, evolutionarily conserved chaperone proteins. These chaperones associate transiently with assembly intermediates but are absent from mature proteasomes. Chaperone eviction upon completion of proteasome assembly is necessary for normal proteasome function, but how they are released remains unresolved. Here, we demonstrate that the Nas6 assembly chaperone, homolog of the human oncogene gankyrin, is evicted from nascent proteasomes during completion of assembly via a conformation-specific allosteric interaction of the Rpn5 subunit with the proteasomal ATPase ring. Subsequent ATP binding by the ATPase subunit Rpt3 promotes conformational remodeling of the ATPase ring that evicts Nas6 from the nascent proteasome. Our study demonstrates how assembly-coupled allosteric signals promote chaperone eviction and provides a framework for understanding the eviction of other chaperones from this bio-medically important molecular machine. Nemec et al. report how the evolutionarily conserved Nas6 assembly chaperone is evicted from nascent 26S proteasomes. Nucleotide binding events within the nascent proteasome trigger formation of conformation-specific intersubunit contacts that expel Nas6. This mechanism may serve a quality control function by blocking formation of 26S proteasomes from defective components.
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Abstract
The proteasome degrades most cellular proteins in a controlled and tightly regulated manner and thereby controls many processes, including cell cycle, transcription, signalling, trafficking and protein quality control. Proteasomal degradation is vital in all cells and organisms, and dysfunction or failure of proteasomal degradation is associated with diverse human diseases, including cancer and neurodegeneration. Target selection is an important and well-established way to control protein degradation. In addition, mounting evidence indicates that cells adjust proteasome-mediated degradation to their needs by regulating proteasome abundance through the coordinated expression of proteasome subunits and assembly chaperones. Central to the regulation of proteasome assembly is TOR complex 1 (TORC1), which is the master regulator of cell growth and stress. This Review discusses how proteasome assembly and the regulation of proteasomal degradation are integrated with cellular physiology, including the interplay between the proteasome and autophagy pathways. Understanding these mechanisms has potential implications for disease therapy, as the misregulation of proteasome function contributes to human diseases such as cancer and neurodegeneration.
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7
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Josa-Culleré L, Towers C, Thompson AL, Moloney MG. Chemoselective Formation and Reaction of Densely Functionalised Bicyclic Tetramic Acids and Their Biological Activity. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701393] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Laia Josa-Culleré
- Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road OX1 3TA Oxford United Kingdom
| | - Christopher Towers
- Department of Oncology; University of Oxford; Old Road Campus Research Building OX3 7LJ Oxford United Kingdom
| | - Amber L. Thompson
- Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road OX1 3TA Oxford United Kingdom
| | - Mark G. Moloney
- Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road OX1 3TA Oxford United Kingdom
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8
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Gaczynska M, Osmulski PA. Targeting Protein-Protein Interactions in the Ubiquitin-Proteasome Pathway. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2017; 110:123-165. [PMID: 29412995 DOI: 10.1016/bs.apcsb.2017.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The ubiquitin-proteasome pathway (UPP) is a major venue for controlled intracellular protein degradation in Eukaryota. The machinery of several hundred proteins is involved in recognizing, tagging, transporting, and cleaving proteins, all in a highly regulated manner. Short-lived transcription factors, misfolded translation products, stress-damaged polypeptides, or worn-out long-lived proteins, all can be found among the substrates of UPP. Carefully choreographed protein-protein interactions (PPI) are involved in each step of the pathway. For many of the steps small-molecule inhibitors have been identified and often they directly or indirectly target PPI. The inhibitors may destabilize intracellular proteostasis and trigger apoptosis. So far this is the most explored option used as an anticancer strategy. Alternatively, substrate-specific polyubiquitination may be regulated for a precise intervention aimed at a particular metabolic pathway. This very attractive opportunity is moving close to clinical application. The best known drug target in UPP is the proteasome: the end point of the journey of a protein destined for degradation. The proteasome alone is a perfect object to study the mechanisms and roles of PPI on many levels. This giant protease is built from multisubunit modules and additionally utilizes a service from transient protein ligands, for example, delivering substrates. An elaborate set of PPI within the highest-order proteasome assembly is involved in substrate recognition and processing. Below we will outline PPI involved in the UPP and discuss the growing prospects for their utilization in pharmacological interventions.
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Affiliation(s)
- Maria Gaczynska
- Institute of Biotechnology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States.
| | - Pawel A Osmulski
- Institute of Biotechnology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
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9
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Winterer M, Kempf K, Schobert R. Synthesis of an Isomer of the Decalinoyltetramic Acid Methiosetin by a Stereocontrolled IMDA Reaction of a Metal-Chelated 3-Trienoyltetramate. J Org Chem 2016; 81:7336-41. [DOI: 10.1021/acs.joc.6b00750] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Markus Winterer
- Organic Chemistry Laboratory, University Bayreuth, 95440 Bayreuth, Germany
| | - Karl Kempf
- Organic Chemistry Laboratory, University Bayreuth, 95440 Bayreuth, Germany
| | - Rainer Schobert
- Organic Chemistry Laboratory, University Bayreuth, 95440 Bayreuth, Germany
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10
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Petta I, Lievens S, Libert C, Tavernier J, De Bosscher K. Modulation of Protein-Protein Interactions for the Development of Novel Therapeutics. Mol Ther 2016; 24:707-18. [PMID: 26675501 PMCID: PMC4886928 DOI: 10.1038/mt.2015.214] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 11/12/2015] [Indexed: 01/10/2023] Open
Abstract
Protein-protein interactions (PPIs) underlie most biological processes. An increasing interest to investigate the unexplored potential of PPIs in drug discovery is driven by the need to find novel therapeutic targets for a whole range of diseases with a high unmet medical need. To date, PPI inhibition with small molecules is the mechanism that has most often been explored, resulting in significant progress towards drug development. However, also PPI stabilization is gradually gaining ground. In this review, we provide a focused overview of a number of PPIs that control critical regulatory pathways and constitute targets for the design of novel therapeutics. We discuss PPI-modulating small molecules that are already pursued in clinical trials. In addition, we review a number of PPIs that are still under preclinical investigation but for which preliminary data support their use as therapeutic targets.
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Affiliation(s)
- Ioanna Petta
- Receptor Research Laboratories, Cytokine Receptor Lab (CRL), VIB Department of Medical Protein Research, Ghent, Belgium
- Department of Biochemistry, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sam Lievens
- Receptor Research Laboratories, Cytokine Receptor Lab (CRL), VIB Department of Medical Protein Research, Ghent, Belgium
- Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Claude Libert
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jan Tavernier
- Receptor Research Laboratories, Cytokine Receptor Lab (CRL), VIB Department of Medical Protein Research, Ghent, Belgium
- Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Karolien De Bosscher
- Receptor Research Laboratories, Cytokine Receptor Lab (CRL), VIB Department of Medical Protein Research, Ghent, Belgium
- Department of Biochemistry, Ghent University, Ghent, Belgium
- Receptor Research Laboratories, Nuclear Receptor Lab (NRL), VIB Department of Medical Protein Research, Ghent, Belgium
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11
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Abstract
With incredible bioactivities and fascinating structural complexities, tetramic acid- (TA-) containing natural products have attracted favorable attention among the organic chemistry community. Although the construction of the TA core is usually straightforward, the intricate C3-side chain sometimes asks for some deliberative strategy so as to fulfill an elegant total synthesis. This review mainly covers some exceptional synthetic examples for each type of natural product in recent years, showcasing the great achievements as well as unsettled obstacles in this area, in the hope of accelerating the synthetic and biological investigations for this unique type of natural product.
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12
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Grigoreva TA, Tribulovich VG, Garabadzhiu AV, Melino G, Barlev NA. The 26S proteasome is a multifaceted target for anti-cancer therapies. Oncotarget 2015; 6:24733-49. [PMID: 26295307 PMCID: PMC4694792 DOI: 10.18632/oncotarget.4619] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 07/10/2015] [Indexed: 12/30/2022] Open
Abstract
Proteasomes play a critical role in the fate of proteins that are involved in major cellular processes, including signal transduction, gene expression, cell cycle, replication, differentiation, immune response, cellular response to stress, etc. In contrast to non-specific degradation by lysosomes, proteasomes are highly selective and destroy only the proteins that are covalently labelled with small proteins, called ubiquitins. Importantly, many diseases, including neurodegenerative diseases and cancers, are intimately connected to the activity of proteasomes making them an important pharmacological target. Currently, the vast majority of inhibitors are aimed at blunting the proteolytic activities of proteasomes. However, recent achievements in solving structures of proteasomes at very high resolution provided opportunities to design new classes of small molecules that target other physiologically-important enzymatic activities of proteasomes, including the de-ubiquitinating one. This review attempts to catalog the information available to date about novel classes of proteasome inhibitors that may have important pharmacological ramifications.
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Affiliation(s)
- Tatyana A Grigoreva
- St. Petersburg State Technological Institute (Technical University), St. Petersburng, Russia
| | | | | | - Gerry Melino
- St. Petersburg State Technological Institute (Technical University), St. Petersburng, Russia
- University of Rome Tor Vergata, Roma, Italy
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13
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Healy AR, Westwood NJ. Synthetic studies on the bioactive tetramic acid JBIR-22 using a late stage Diels-Alder reaction. Org Biomol Chem 2015; 13:10527-31. [PMID: 26337398 DOI: 10.1039/c5ob01771h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A late stage Diels-Alder reaction is used to prepare a mixture of JBIR-22, a natural product from the Equisetin family of tetramic acids, and one of its diastereomers. This is achieved in just 8 steps from pyruvate. The success of the late stage DA approach is discussed in the context of the biosynthesis of JBIR-22 (and perhaps related natural products).
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Affiliation(s)
- A R Healy
- School of Chemistry & Biomedical Sciences Research Complex, University of St Andrews & EaStCHEM, North Haugh, St Andrews, KY16 9ST, UK.
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14
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Healy AR, Izumikawa M, Slawin AMZ, Shin-ya K, Westwood NJ. Stereochemical assignment of the protein-protein interaction inhibitor JBIR-22 by total synthesis. Angew Chem Int Ed Engl 2015; 54:4046-50. [PMID: 25650886 PMCID: PMC4441253 DOI: 10.1002/anie.201411141] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Indexed: 12/04/2022]
Abstract
Recent reports have highlighted the biological activity associated with a subfamily of the tetramic acid class of natural products. Despite the fact that members of this subfamily act as protein-protein interaction inhibitors that are of relevance to proteasome assembly, no synthetic work has been reported. This may be due to the fact that this subfamily contains an unnatural 4,4-disubstitued glutamic acid, the synthesis of which provides a key challenge. A highly stereoselective route to a masked form of this unnatural amino acid now enabled the synthesis of two of the possible diastereomers of JBIR-22 and allowed the assignment of its relative and absolute stereochemistry.
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Affiliation(s)
- Alan R Healy
- School of Chemistry and Biomedical Sciences Research Complex, University of St Andrews and EaStCHEMNorth Haugh, St Andrews, Fife (UK)
| | - Miho Izumikawa
- Japan Biological Informatics Consortium (JBIC) 2-4-7 Aomi, Koto-kuTokyo 135-0064 (Japan)
| | - Alexandra M Z Slawin
- School of Chemistry and Biomedical Sciences Research Complex, University of St Andrews and EaStCHEMNorth Haugh, St Andrews, Fife (UK)
| | - Kazuo Shin-ya
- National Institute of Advanced Industrial Science and Technology (AIST)2-4-7 Aomi, Koto-ku, Tokyo 135-0064 (Japan)
| | - Nicholas J Westwood
- School of Chemistry and Biomedical Sciences Research Complex, University of St Andrews and EaStCHEMNorth Haugh, St Andrews, Fife (UK)
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15
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Healy AR, Izumikawa M, Slawin AMZ, Shin‐ya K, Westwood NJ. Stereochemical Assignment of the Protein-Protein Interaction Inhibitor JBIR-22 by Total Synthesis. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 127:4118-4122. [PMID: 27087707 PMCID: PMC4780591 DOI: 10.1002/ange.201411141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Indexed: 11/06/2022]
Abstract
Recent reports have highlighted the biological activity associated with a subfamily of the tetramic acid class of natural products. Despite the fact that members of this subfamily act as protein-protein interaction inhibitors that are of relevance to proteasome assembly, no synthetic work has been reported. This may be due to the fact that this subfamily contains an unnatural 4,4-disubstitued glutamic acid, the synthesis of which provides a key challenge. A highly stereoselective route to a masked form of this unnatural amino acid now enabled the synthesis of two of the possible diastereomers of JBIR-22 and allowed the assignment of its relative and absolute stereochemistry.
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16
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Healy AR, Vinale F, Lorito M, Westwood NJ. Total synthesis and biological evaluation of the tetramic acid based natural product harzianic acid and its stereoisomers. Org Lett 2015; 17:692-5. [PMID: 25629709 PMCID: PMC4737532 DOI: 10.1021/ol503717r] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Indexed: 12/03/2022]
Abstract
The bioactive natural product harzianic acid was prepared for the first time in just six steps (longest linear sequence) with an overall yield of 22%. The identification of conditions to telescope amide bond formation and a Lacey-Dieckmann reaction into one pot proved important. The three stereoisomers of harzianic acid were also prepared, providing material for comparison of their biological activity. While all of the isomers promoted root growth, improved antifungal activity was unexpectedly associated with isomers in the enantiomeric series opposite that of harzianic acid.
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Affiliation(s)
- Alan R. Healy
- School
of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, North Haugh, St. Andrews, Fife KY169ST, U.K.
| | - Francesco Vinale
- CNR
− Istituto per la Protezione Sostenibile delle Piante (IPSP-CNR), 80055 Portici, Italy
| | - Matteo Lorito
- CNR
− Istituto per la Protezione Sostenibile delle Piante (IPSP-CNR), 80055 Portici, Italy
- Dipartimento
di Agraria, Università degli Studi
di Napoli “Federico II”, 80138 Portici, Italy
| | - Nicholas J. Westwood
- School
of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, North Haugh, St. Andrews, Fife KY169ST, U.K.
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17
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Harvey AL, Edrada-Ebel R, Quinn RJ. The re-emergence of natural products for drug discovery in the genomics era. Nat Rev Drug Discov 2015; 14:111-29. [PMID: 25614221 DOI: 10.1038/nrd4510] [Citation(s) in RCA: 1499] [Impact Index Per Article: 166.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Natural products have been a rich source of compounds for drug discovery. However, their use has diminished in the past two decades, in part because of technical barriers to screening natural products in high-throughput assays against molecular targets. Here, we review strategies for natural product screening that harness the recent technical advances that have reduced these barriers. We also assess the use of genomic and metabolomic approaches to augment traditional methods of studying natural products, and highlight recent examples of natural products in antimicrobial drug discovery and as inhibitors of protein-protein interactions. The growing appreciation of functional assays and phenotypic screens may further contribute to a revival of interest in natural products for drug discovery.
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Affiliation(s)
- Alan L Harvey
- 1] Research and Innovation Support, Dublin City University, Dublin 9, Ireland. [2] Strathclyde Institute of Pharmacy and Biomedical Science, University of Strathclyde, Glasgow G4 0NR, UK
| | - RuAngelie Edrada-Ebel
- Strathclyde Institute of Pharmacy and Biomedical Science, University of Strathclyde, Glasgow G4 0NR, UK
| | - Ronald J Quinn
- Eskitis Institute for Drug Discovery, Griffith University, Brisbane, Queensland 4111, Australia
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18
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Milroy LG, Grossmann TN, Hennig S, Brunsveld L, Ottmann C. Modulators of Protein–Protein Interactions. Chem Rev 2014; 114:4695-748. [DOI: 10.1021/cr400698c] [Citation(s) in RCA: 352] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Lech-Gustav Milroy
- Laboratory
of Chemical Biology and Institute of Complex Molecular Systems, Department
of Biomedical Engineering, Technische Universiteit Eindhoven, Den Dolech
2, 5612 AZ Eindhoven, The Netherlands
| | - Tom N. Grossmann
- Chemical Genomics Centre of the Max Planck Society, Otto-Hahn Straße 15, 44227 Dortmund, Germany
- Department
of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Sven Hennig
- Chemical Genomics Centre of the Max Planck Society, Otto-Hahn Straße 15, 44227 Dortmund, Germany
| | - Luc Brunsveld
- Laboratory
of Chemical Biology and Institute of Complex Molecular Systems, Department
of Biomedical Engineering, Technische Universiteit Eindhoven, Den Dolech
2, 5612 AZ Eindhoven, The Netherlands
| | - Christian Ottmann
- Laboratory
of Chemical Biology and Institute of Complex Molecular Systems, Department
of Biomedical Engineering, Technische Universiteit Eindhoven, Den Dolech
2, 5612 AZ Eindhoven, The Netherlands
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19
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Mo X, Li Q, Ju J. Naturally occurring tetramic acid products: isolation, structure elucidation and biological activity. RSC Adv 2014. [DOI: 10.1039/c4ra09047k] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Natural products containing the tetramic acid core scaffold have been isolated from an assortment of terrestrial and marine species and often display wide ranging and potent biological activities including antibacterial, antiviral and antitumoral activities.
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Affiliation(s)
- Xuhua Mo
- Shandong Key Laboratory of Applied Mycology
- School of Life Sciences
- Qingdao Agricultural University
- Qingdao, China
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology
| | - Qinglian Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology
- Guangdong Key Laboratory of Marine Materia Medica
- RNAM Center for Marine Microbiology
- South China Sea Institute of Oceanology
- Chinese Academy of Sciences
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology
- Guangdong Key Laboratory of Marine Materia Medica
- RNAM Center for Marine Microbiology
- South China Sea Institute of Oceanology
- Chinese Academy of Sciences
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20
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Doi T, Yoshida M, Ohsawa K, Shin-ya K, Takagi M, Uekusa Y, Yamaguchi T, Kato K, Hirokawa T, Natsume T. Total synthesis and characterization of thielocin B1 as a protein–protein interaction inhibitor of PAC3 homodimer. Chem Sci 2014. [DOI: 10.1039/c3sc53237b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We have characterized the inhibition of the protein–protein interaction of the homodimer of proteasome assembling chaperone (PAC) 3 with thielocin B1.
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Affiliation(s)
- Takayuki Doi
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai 980-8578, Japan
| | - Masahito Yoshida
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai 980-8578, Japan
| | - Kosuke Ohsawa
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai 980-8578, Japan
| | - Kazuo Shin-ya
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tokyo 135-0064, Japan
| | - Motoki Takagi
- Biomedicinal Information Research Center (BIRC)
- Japan Biological Informatics Consortium (JBIC)
- Tokyo 135-0064, Japan
| | - Yoshinori Uekusa
- Okazaki Institute for Integrative Bioscience and Institute for Molecular Science
- National Institutes of Natural Sciences
- Okazaki, Japan
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
| | - Takumi Yamaguchi
- Okazaki Institute for Integrative Bioscience and Institute for Molecular Science
- National Institutes of Natural Sciences
- Okazaki, Japan
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
| | - Koichi Kato
- Okazaki Institute for Integrative Bioscience and Institute for Molecular Science
- National Institutes of Natural Sciences
- Okazaki, Japan
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
| | - Takatsugu Hirokawa
- Computational Biology Research Center (CBRC)
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tokyo 135-0064, Japan
| | - Tohru Natsume
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tokyo 135-0064, Japan
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Quek NCH, Matthews JH, Bloor SJ, Jones DA, Bircham PW, Heathcott RW, Atkinson PH. The novel equisetin-like compound, TA-289, causes aberrant mitochondrial morphology which is independent of the production of reactive oxygen species in Saccharomyces cerevisiae. MOLECULAR BIOSYSTEMS 2013; 9:2125-33. [DOI: 10.1039/c3mb70056a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Construction of a natural product library containing secondary metabolites produced by actinomycetes. J Antibiot (Tokyo) 2012; 65:443-7. [DOI: 10.1038/ja.2012.52] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Pharmacological targets in the ubiquitin system offer new ways of treating cancer, neurodegenerative disorders and infectious diseases. Expert Rev Mol Med 2011; 13:e35. [PMID: 22088887 PMCID: PMC3219211 DOI: 10.1017/s1462399411002031] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Recent advances in the development and discovery of pharmacological interventions within
the ubiquitin–proteasome system (UPS) have uncovered an enormous potential for
possible novel treatments of neurodegenerative disease, cancer, immunological disorder and
microbial infection. Interference with proteasome activity, although initially considered
unlikely to be exploitable clinically, has already proved to be very effective against
haematological malignancies, and more specific derivatives that target subsets of
proteasomes are emerging. Recent small-molecule screens have revealed inhibitors against
ubiquitin-conjugating and -deconjugating enzymes, many of which have been evaluated for
their potential use as therapeutics, either as single agents or in synergy with other
drugs. Here, we discuss recent advances in the characterisation of novel UPS modulators
(in particular, inhibitors of ubiquitin-conjugating and -deconjugating enzymes) and how
they pave the way towards new therapeutic approaches for the treatment of proteotoxic
disease, cancer and microbial infection.
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Alcaide B, Almendros P, Luna A, Cembellín S, Arnó M, Domingo LR. Controlled Rearrangement of Lactam-Tethered Allenols with Brominating Reagents: A Combined Experimental and Theoretical Study on α- versus β-Keto Lactam Formation. Chemistry 2011; 17:11559-66. [DOI: 10.1002/chem.201101160] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Indexed: 11/06/2022]
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25
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Proteasome inhibitors: Dozens of molecules and still counting. Biochimie 2010; 92:1530-45. [PMID: 20615448 DOI: 10.1016/j.biochi.2010.06.023] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Accepted: 06/29/2010] [Indexed: 10/19/2022]
Abstract
The discovery of the proteasome in the late 80's as the core protease of what will be then called the ubiquitin-proteasome system, rapidly followed by the development of specific inhibitors of this enzyme, opened up a new era in biology in the 90's. Indeed, the first proteasome inhibitors were instrumental for understanding that the proteasome is a key actor in most, if not all, cellular processes. The recognition of the central role of this complex in intracellular proteolysis in turn fuelled an intense quest for novel compounds with both increased selectivity towards the proteasome and better bioavailability that could be used in fundamental research or in the clinic. To date, a plethora of molecules that target the proteasome have been identified or designed. The success of the proteasome inhibitor bortezomib (Velcade(®)) as a new drug for the treatment of Multiple Myeloma, and the ongoing clinical trials to evaluate the effect of several other proteasome inhibitors in various human pathologies, illustrate the interest for human health of these compounds.
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