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Maslivetc VA, Nabiul Hasan M, Boari A, Zejnelovski A, Evidente A, Sun D, Kornienko A. Ophiobolin A derivatives with enhanced activities under tumor-relevant acidic conditions. Bioorg Med Chem Lett 2024; 110:129863. [PMID: 38942129 DOI: 10.1016/j.bmcl.2024.129863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
Glioblastoma (GBM) is the most common form of malignant primary brain tumor and is one of the most lethal cancers. The difficulty in treating GBM stems from its highly developed mechanisms of drug resistance. Our research team has recently identified the fungal secondary metabolite ophiobolin A (OpA) as an agent with significant activity against drug-resistant GBM cells. However, the OpA's mode of action is likely based on covalent modification of its intracellular target(s) and thus possible off-target reactivity needs to be addressed. This work involves the investigation of an acid-sensitive OpA analogue approach that exploits the elevated acidity of the GBM microenvironment to enhance the selectivity for tumor targeting. This project identified analogues that showed selectivity at killing GBM cells grown in cultures at reduced pH compared to those maintained under normal neutral conditions. These studies are expected to facilitate the development of OpA as an anti-GBM agent by investigating its potential use in an acid-sensitive analogue form with enhanced selectivity for tumor targeting.
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Affiliation(s)
- Vladimir A Maslivetc
- Department of Chemistry and Biochemistry, Texas State University, 601 University Dr., San Marcos, TX 78666, USA
| | - Md Nabiul Hasan
- Department of Neurology, University of Pittsburgh, 3501 Fifth Ave, Pittsburgh, PA 15260, USA
| | - Angela Boari
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/O, 70125 Bari, Italy
| | - Arben Zejnelovski
- Department of Chemistry and Biochemistry, Texas State University, 601 University Dr., San Marcos, TX 78666, USA
| | - Antonio Evidente
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Dandan Sun
- Department of Neurology, University of Pittsburgh, 3501 Fifth Ave, Pittsburgh, PA 15260, USA; Research Service, Veterans Affairs Pittsburgh Health Care System, Pittsburgh, PA, USA
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, 601 University Dr., San Marcos, TX 78666, USA.
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2
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Gowans FA, Thach DQ, Zhu Z, Wang Y, Altamirano Poblano BE, Dovala D, Tallarico JA, McKenna JM, Schirle M, Maimone TJ, Nomura DK. Ophiobolin A Covalently Targets Mitochondrial Complex IV Leading to Metabolic Collapse in Cancer Cells. ACS Chem Biol 2024; 19:1260-1270. [PMID: 38739449 DOI: 10.1021/acschembio.4c00064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Ophiobolin A (OPA) is a sesterterpenoid fungal natural product with broad anticancer activity. While OPA possesses multiple electrophilic moieties that can covalently react with nucleophilic amino acids on proteins, the proteome-wide targets and mechanism of OPA remain poorly understood in many contexts. In this study, we used covalent chemoproteomic platforms to map the proteome-wide reactivity of the OPA in a highly sensitive lung cancer cell line. Among several proteins that OPA engaged, we focused on two targets: lysine-72 of cytochrome c oxidase subunit 5A (COX5A) and cysteine-53 of mitochondrial hypoxia induced gene 1 domain family member 2A (HIGD2A). These two subunit proteins are part of complex IV (cytochrome C oxidase) within the electron transport chain and contributed significantly to the antiproliferative activity of OPA. OPA activated mitochondrial respiration in a COX5A- and HIGD2A-dependent manner, leading to an initial spike in mitochondrial ATP and heightened mitochondrial oxidative stress. OPA compromised mitochondrial membrane potential, ultimately leading to ATP depletion. We have used chemoproteomic strategies to discover a unique anticancer mechanism of OPA through activation of complex IV leading to compromised mitochondrial energetics and rapid cell death.
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Affiliation(s)
- Flor A Gowans
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Innovative Genomics Institute, Berkeley, California 94704, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, California 94720 United States
| | - Danny Q Thach
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
| | - Zhouyang Zhu
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
| | - Yangzhi Wang
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Innovative Genomics Institute, Berkeley, California 94704, United States
- Novartis Institutes for BioMedical Research, Basel CH-4056, Switzerland
| | - Belen E Altamirano Poblano
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Innovative Genomics Institute, Berkeley, California 94704, United States
- Novartis Institutes for BioMedical Research, Basel CH-4056, Switzerland
| | - Dustin Dovala
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Novartis Institutes for BioMedical Research, Emeryville, California 94608, United States
| | - John A Tallarico
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Jeffrey M McKenna
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Novartis Institutes for BioMedical Research, Basel CH-4056, Switzerland
| | - Markus Schirle
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Thomas J Maimone
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
| | - Daniel K Nomura
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, California 94720, United States
- Innovative Genomics Institute, Berkeley, California 94704, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, California 94720 United States
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3
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Evidente A. The incredible story of ophiobolin A and sphaeropsidin A: two fungal terpenes from wilt-inducing phytotoxins to promising anticancer compounds. Nat Prod Rep 2024; 41:434-468. [PMID: 38131643 DOI: 10.1039/d3np00035d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Covering: 2000 to 2023This review presents the exceptional story of ophiobolin A (OphA) and sphaeropsidin A (SphA), a sesterterpene and a diterpene, respectively, which were initially isolated as fungal phytotoxins and subsequently shown to possess other interesting biological activities, including promising anticancer activities. Ophiobolin A is a phytotoxin produced by different fungal pathogens, all belonging to the Bipolaris genus. Initially, it was only known as a very dangerous phytotoxin produced by fungi attacking essential cereals, such as rice and barley. However, extensive and interesting studies were carried out to define its original carbon skeleton, which is characterized by a typical 5 : 8 : 5 ring system and shared with fusicoccins and cotylenins, and its phytotoxic activity on host and non-host plants. The biosynthesis of OphA was also defined by describing the different steps starting from mevalonate and through the rearrangement of the acyclic C-25 precursor lead the toxin is obtained. OphA was also produced as a bioherbicide from Drechslera gigantea and proposed for the biocontrol of the widespread and dangerous weed Digitaria sanguinaria. To date, more than sixty ophiobolins have been isolated from different fungi and their biological activities and structure-activity relationship investigated, which were also described using their hemisynthetic derivatives. In the last two decades, thorough studies have been performed on the potential anticancer activity of OphA and its original mode of action, attracting great interest from scientists. Sphaeropsidin A has a similar story. It was isolated as the main phytotoxin from Diplodia cupressi, the causal agent of Italian cypress canker disease, resulting in the loss of millions of plants in a few years in the Mediterranean basin. The damage to the forest, environment and ornamental heritage are noteworthy and economic losses are also suffered by tree nurseries and the wood industry. Six natural analogues of SphA were isolated and several interesting hemisynthetic derivatives were prepared to study its structure-activity relationship. Surprisingly, sphaeropsidin A showed other interesting biological activities, including antibiotic, antifungal, and antiviral. In the last decade, extensive studies have focused on the anticancer activity and original mode of action of SphA. Furthermore, specific hemisynthetic studies enable the preparation of derivatives of SphA, preserving its chromophore, which showed a noteworthy increase in anticancer activity. It has been demonstrated that ophiobolin A and sphaeropsidin A are promising natural products showing potent activity against some malignant cancers, such as brain glioblastoma and different melanomas.
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Affiliation(s)
- Antonio Evidente
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/O, 70125 Bari, Italy.
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Reisenauer KN, Aroujo J, Tao Y, Ranganathan S, Romo D, Taube JH. Therapeutic vulnerabilities of cancer stem cells and effects of natural products. Nat Prod Rep 2023; 40:1432-1456. [PMID: 37103550 PMCID: PMC10524555 DOI: 10.1039/d3np00002h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Covering: 1995 to 2022Tumors possess both genetic and phenotypic heterogeneity leading to the survival of subpopulations post-treatment. The term cancer stem cells (CSCs) describes a subpopulation that is resistant to many types of chemotherapy and which also possess enhanced migratory and anchorage-independent growth capabilities. These cells are enriched in residual tumor material post-treatment and can serve as the seed for future tumor re-growth, at both primary and metastatic sites. Elimination of CSCs is a key goal in enhancing cancer treatment and may be aided by application of natural products in conjunction with conventional treatments. In this review, we highlight molecular features of CSCs and discuss synthesis, structure-activity relationships, derivatization, and effects of six natural products with anti-CSC activity.
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Affiliation(s)
| | - Jaquelin Aroujo
- Department of Chemistry and Biochemistry, Baylor Univesrity, Waco, TX, USA
| | - Yongfeng Tao
- Department of Chemistry and Biochemistry, Baylor Univesrity, Waco, TX, USA
| | | | - Daniel Romo
- Department of Chemistry and Biochemistry, Baylor Univesrity, Waco, TX, USA
| | - Joseph H Taube
- Department of Biology, Baylor University, Waco, TX, USA.
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
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Fernández-García P, Malet-Engra G, Torres M, Hanson D, Rosselló CA, Román R, Lladó V, Escribá PV. Evolving Diagnostic and Treatment Strategies for Pediatric CNS Tumors: The Impact of Lipid Metabolism. Biomedicines 2023; 11:biomedicines11051365. [PMID: 37239036 DOI: 10.3390/biomedicines11051365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Pediatric neurological tumors are a heterogeneous group of cancers, many of which carry a poor prognosis and lack a "standard of care" therapy. While they have similar anatomic locations, pediatric neurological tumors harbor specific molecular signatures that distinguish them from adult brain and other neurological cancers. Recent advances through the application of genetics and imaging tools have reshaped the molecular classification and treatment of pediatric neurological tumors, specifically considering the molecular alterations involved. A multidisciplinary effort is ongoing to develop new therapeutic strategies for these tumors, employing innovative and established approaches. Strikingly, there is increasing evidence that lipid metabolism is altered during the development of these types of tumors. Thus, in addition to targeted therapies focusing on classical oncogenes, new treatments are being developed based on a broad spectrum of strategies, ranging from vaccines to viral vectors, and melitherapy. This work reviews the current therapeutic landscape for pediatric brain tumors, considering new emerging treatments and ongoing clinical trials. In addition, the role of lipid metabolism in these neoplasms and its relevance for the development of novel therapies are discussed.
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Affiliation(s)
- Paula Fernández-García
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
- Laminar Pharmaceuticals, Isaac Newton, 07121 Palma de Mallorca, Spain
| | - Gema Malet-Engra
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
- Laminar Pharmaceuticals, Isaac Newton, 07121 Palma de Mallorca, Spain
| | - Manuel Torres
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
| | - Derek Hanson
- Hackensack Meridian Health, 343 Thornall Street, Edison, NJ 08837, USA
| | - Catalina A Rosselló
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
- Laminar Pharmaceuticals, Isaac Newton, 07121 Palma de Mallorca, Spain
| | - Ramón Román
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
- Laminar Pharmaceuticals, Isaac Newton, 07121 Palma de Mallorca, Spain
| | - Victoria Lladó
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
- Laminar Pharmaceuticals, Isaac Newton, 07121 Palma de Mallorca, Spain
| | - Pablo V Escribá
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, 07122 Palma de Mallorca, Spain
- Laminar Pharmaceuticals, Isaac Newton, 07121 Palma de Mallorca, Spain
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6
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Gowans FA, Thach DQ, Wang Y, Altamirano Poblano BE, Dovala D, Tallarico JA, McKenna JM, Schirle M, Maimone TJ, Nomura DK. Ophiobolin A Covalently Targets Complex IV Leading to Mitochondrial Metabolic Collapse in Cancer Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.09.531918. [PMID: 36945520 PMCID: PMC10029012 DOI: 10.1101/2023.03.09.531918] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Ophiobolin A (OPA) is a sesterterpenoid fungal natural product with broad anti-cancer activity. While OPA possesses multiple electrophilic moieties that can covalently react with nucleophilic amino acids on proteins, the proteome-wide targets and mechanism of OPA remain poorly understood in many contexts. In this study, we used covalent chemoproteomic platforms to map the proteome-wide reactivity of OPA in a highly sensitive lung cancer cell line. Among several proteins that OPA engaged, we focused on two targets-cysteine C53 of HIG2DA and lysine K72 of COX5A-that are part of complex IV of the electron transport chain and contributed significantly to the anti-proliferative activity. OPA activated mitochondrial respiration in a HIG2DA and COX5A-dependent manner, led to an initial spike in mitochondrial ATP, but then compromised mitochondrial membrane potential leading to ATP depletion. We have used chemoproteomic strategies to discover a unique anti-cancer mechanism of OPA through activation of complex IV leading to compromised mitochondrial energetics and rapid cell death.
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Affiliation(s)
- Flor A. Gowans
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, CA 94720 USA
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720 USA
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Innovative Genomics Institute, Berkeley, CA 94704 USA
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720 USA
| | - Danny Q. Thach
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720 USA
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
| | - Yangzhi Wang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720 USA
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Innovative Genomics Institute, Berkeley, CA 94704 USA
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Belen E. Altamirano Poblano
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720 USA
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Innovative Genomics Institute, Berkeley, CA 94704 USA
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Dustin Dovala
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Novartis Institutes for BioMedical Research, Emeryville, CA 94608 USA
| | - John A. Tallarico
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Novartis Institutes for BioMedical Research, Cambridge, MA 02139 USA
| | - Jeffrey M. McKenna
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Markus Schirle
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Novartis Institutes for BioMedical Research, Cambridge, MA 02139 USA
| | - Thomas J. Maimone
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720 USA
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
| | - Daniel K. Nomura
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, CA 94720 USA
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720 USA
- Novartis-Berkeley Translational Chemical Biology Institute, Berkeley, CA 94720 USA
- Innovative Genomics Institute, Berkeley, CA 94704 USA
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720 USA
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7
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Law JA, Callen DP, Paola EL, Gomes G, Frederich JH. A Stereoselective Photoinduced Cycloisomerization Inspired by Ophiobolin A. Org Lett 2022; 24:6499-6504. [PMID: 35944279 PMCID: PMC10559756 DOI: 10.1021/acs.orglett.2c02272] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A stereoselective synthetic entry point to the 5-8-5 carbocyclic core of the ophiobolins was developed. This strategy exploits the chiral tertiary alcohol of ophiobolin A to guide assmebly of the 5-8-5 scaffold in a single step via a photoinitiated cycloisomerization. Mechanistic insights into the origin of stereocontrol in this reaction are described, as are efforts to elaborate the resultant fused 5-8-5 ring system to the pharmacophore of ophiobolin A.
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Affiliation(s)
- James A Law
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Daniel P Callen
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Elena L Paola
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Gabe Gomes
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - James H Frederich
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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8
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Liang JJ, Yu WL, Yang L, Qin KM, Yin YP, Li D, Ni YH, Yan JJ, Zhong YX, Deng ZX, Hong K. Synthesis and structure-activity relationship study of a potent MHO7 analogue as potential anti-triple negative breast cancer agent. Eur J Med Chem 2022; 236:114313. [DOI: 10.1016/j.ejmech.2022.114313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/17/2022] [Accepted: 03/19/2022] [Indexed: 11/26/2022]
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9
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Liang JJ, Yu WL, Yang L, Xie BH, Qin KM, Yin YP, Yan JJ, Gong S, Liu TY, Zhou HB, Hong K. Design and synthesis of marine sesterterpene analogues as novel estrogen receptor α degraders for breast cancer treatment. Eur J Med Chem 2022; 229:114081. [PMID: 34992039 DOI: 10.1016/j.ejmech.2021.114081] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/19/2021] [Accepted: 12/23/2021] [Indexed: 11/29/2022]
Abstract
Targeted protein degradation using small molecules is an intriguing strategy for drug development. The marine sesterterpene compound MHO7 had been reported to be a potential ERα degradation agent. In order to further improve its biological activity, two series of novel MHO7 derivatives with long side chains were designed and identified as novel selective estrogen receptor down-regulators (SERDs). The growth inhibition activity of the novel SERD compounds were significantly affected by the type and length of the side chain. Most of the derivatives were significantly more potent than MHO7 against both drug-sensitive and drug-resistant breast cancer cells. Among them, compound 16a, with IC50 values of 0.41 μM against MCF-7 cell lines and 9.6-fold stronger than MHO7, was the most potential molecule. A whole-genome transcriptomic analysis of MCF-7 cells revealed that the mechanism of 16a against MCF-7 cell was similar with that of MHO7. The estrogen signaling pathway was the most affected among the disturbed genes, but the ERα degradation activity of 16a was observed higher than that of MHO7. Other effects of 16a were confirmed similar with MHO7, which means that the basic mechanisms of the derivatives are the same with the ophiobolin backbone, i.e. the degradation of ERα is mediated via proteasome-mediated process, the induction of apoptosis and the cell cycle arrest at the G1 phase. Meanwhile, a decrease of mitochondrial membrane potential and an increase of cellular ROS were also detected. Based on these results, as a novel modified ophiobolin derived compound, 16a may warrant further exploitation as a promising SERD candidate agent for the treatment of breast cancer.
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Affiliation(s)
- Jian-Jia Liang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Wu-Lin Yu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Liang Yang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Bao-Hua Xie
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Kong-Ming Qin
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Yu-Ping Yin
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Jing-Jing Yan
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Shuang Gong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Ten-Yue Liu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Hai-Bing Zhou
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China.
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10
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Polygodial and Ophiobolin A Analogues for Covalent Crosslinking of Anticancer Targets. Int J Mol Sci 2021; 22:ijms222011256. [PMID: 34681916 PMCID: PMC8537666 DOI: 10.3390/ijms222011256] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 12/31/2022] Open
Abstract
In a search of small molecules active against apoptosis-resistant cancer cells, including glioma, melanoma, and non-small cell lung cancer, we previously prepared α,β- and γ,δ-unsaturated ester analogues of polygodial and ophiobolin A, compounds capable of pyrrolylation of primary amines and demonstrating double-digit micromolar antiproliferative potencies in cancer cells. In the current work, we synthesized dimeric and trimeric variants of such compounds in an effort to discover compounds that could crosslink biological primary amine containing targets. We showed that such compounds retain the pyrrolylation ability and possess enhanced single-digit micromolar potencies toward apoptosis-resistant cancer cells. Target identification studies of these interesting compounds are underway.
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11
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Reisenauer KN, Tao Y, Das P, Song S, Svatek H, Patel SD, Mikhail S, Ingros A, Sheesley P, Masi M, Boari A, Evidente A, Kornienko A, Romo D, Taube J. Epithelial-mesenchymal transition sensitizes breast cancer cells to cell death via the fungus-derived sesterterpenoid ophiobolin A. Sci Rep 2021; 11:10652. [PMID: 34017048 PMCID: PMC8137940 DOI: 10.1038/s41598-021-89923-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 04/21/2021] [Indexed: 12/30/2022] Open
Abstract
The epithelial-mesenchymal transition (EMT) imparts properties of cancer stem-like cells, including resistance to frequently used chemotherapies, necessitating the identification of molecules that induce cell death specifically in stem-like cells with EMT properties. Herein, we demonstrate that breast cancer cells enriched for EMT features are more sensitive to cytotoxicity induced by ophiobolin A (OpA), a sesterterpenoid natural product. Using a model of experimentally induced EMT in human mammary epithelial (HMLE) cells, we show that EMT is both necessary and sufficient for OpA sensitivity. Moreover prolonged, sub-cytotoxic exposure to OpA is sufficient to suppress EMT-imparted CSC features including sphere formation and resistance to doxorubicin. In vivo growth of CSC-rich mammary cell tumors, is suppressed by OpA treatment. These data identify a driver of EMT-driven cytotoxicity with significant potential for use either in combination with standard chemotherapy or for tumors enriched for EMT features.
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Affiliation(s)
| | - Yongfeng Tao
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Provas Das
- Department of Biology, Baylor University, Waco, TX, USA
| | - Shuxuan Song
- Department of Biology, Baylor University, Waco, TX, USA
| | | | | | | | - Alec Ingros
- Department of Biology, Baylor University, Waco, TX, USA
| | | | - Marco Masi
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, Naples, Italy
| | - Angela Boari
- Institute of Sciences and Food Production, CNR, Bari, Italy
| | - Antonio Evidente
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, Naples, Italy
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX, USA
| | - Daniel Romo
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Joseph Taube
- Department of Biology, Baylor University, Waco, TX, USA.
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12
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Daressy F, Malard F, Seguy L, Guérineau V, Apel C, Dumontet V, Robert A, Groo AC, Litaudon M, Bignon J, Desrat S, Malzert-Fréon A, Wiels J, Lescop E, Roussi F. Drimane Derivatives as the First Examples of Covalent BH3 Mimetics that Target MCL-1. ChemMedChem 2021; 16:1788-1797. [PMID: 33665938 DOI: 10.1002/cmdc.202100011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/15/2021] [Indexed: 01/27/2023]
Abstract
Drimane sesquiterpenoid dialdehydes are natural compounds with antiproliferative properties. Nevertheless, their mode of action has not yet been discovered. Herein, we demonstrate that various drimanes are potent inhibitors of MCL-1 and BCL-xL, two proteins of the BCL-2 family that are overexpressed in various cancers, including lymphoid malignancies. Subtle changes in their structure significantly modified their activity on the target proteins. The two most active compounds are MCL-1 selective and bind in the BH3 binding groove of the protein. Complementary studies by NMR spectroscopy and mass spectrometry analyses, but also synthesis, showed that they covalently inhibit MCL-1 though the formation of a pyrrole adduct. In addition, cytotoxic assays revealed that these two compounds show a cytotoxic selectivity for BL2, a MCL-1/BCL-xL-dependent cell line and induce apoptosis.
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Affiliation(s)
- Florian Daressy
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France.,Institut Gustave Roussy, CNRS UMR8126, Université Paris-Saclay, 114 rue Edouard-Vaillant, 94805, Villejuif Cedex, France.,UMR9018 CNRS, Institut Gustave Roussy, Université Paris-Saclay, 114 rue Edouard-Vaillant, 94805, Villejuif, France
| | - Florian Malard
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Line Seguy
- Centre d'Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, Normandie Université, Boulevard Becquerel, 14032, Caen Cedex, France
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Cécile Apel
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Vincent Dumontet
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Aude Robert
- Institut Gustave Roussy, CNRS UMR8126, Université Paris-Saclay, 114 rue Edouard-Vaillant, 94805, Villejuif Cedex, France.,Université Paris-Saclay, Inserm, Institut Gustave Roussy, UMR1279, 114 rue Edouard-Vaillant, 94805, Villejuif, France
| | - Anne-Claire Groo
- Centre d'Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, Normandie Université, Boulevard Becquerel, 14032, Caen Cedex, France
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Jérôme Bignon
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Sandy Desrat
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Aurélie Malzert-Fréon
- Centre d'Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, Normandie Université, Boulevard Becquerel, 14032, Caen Cedex, France
| | - Joëlle Wiels
- Institut Gustave Roussy, CNRS UMR8126, Université Paris-Saclay, 114 rue Edouard-Vaillant, 94805, Villejuif Cedex, France.,UMR9018 CNRS, Institut Gustave Roussy, Université Paris-Saclay, 114 rue Edouard-Vaillant, 94805, Villejuif, France
| | - Ewen Lescop
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Avenue de la terrasse, 91198, Gif-sur-Yvette Cedex, France
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13
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Xu J, Ding A, Zhang Y, Guo H. Photochemical Synthesis of 1,4-Dicarbonyl Bifluorene Compounds via Oxidative Radical Coupling Using TEMPO as the Oxygen Atom Donor. J Org Chem 2021; 86:3656-3666. [PMID: 33513019 DOI: 10.1021/acs.joc.0c02781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A visible-light-induced metal-free synthesis of 1,4-dicarbonyl compounds from alkyne-containing aryl iodides via photochemical C-I bond cleavage, intramolecular cyclization, oxidation, and intermolecular radical coupling sequence is reported. TEMPO was employed as the oxygen atom donor in this transformation. This protocol provided a new strategy for the synthesis of 1,4-dicarbonyl bifluorene compounds.
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Affiliation(s)
- Jincheng Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Aishun Ding
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Yanbin Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Hao Guo
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
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14
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Zatout R, Masi M, Sangermano F, Vurro M, Zonno MC, Santoro E, Calabrò V, Superchi S, Evidente A. Drophiobiolins A and B, Bioactive Ophiobolan Sestertepenoids Produced by Dreschslera gigantea. JOURNAL OF NATURAL PRODUCTS 2020; 83:3387-3396. [PMID: 33074690 DOI: 10.1021/acs.jnatprod.0c00836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two new bioactive ophiobolan sestertepenoids, named drophiobiolins A and B (1 and 2) were isolated from Drechslera gigantea, a fungus proposed as a mycoherbicide for biocontrol of Digitaria sanguinalis. They were isolated together with ophiobolin A, the main metabolite, 6-epi-ophiobolin A, 3-anhydro-6-epi-ophiobolin A, and ophiobolin I. Drophiobolins A and B were characterized by NMR, HRESIMS, and chemical methods as 7-hydroxy-7-(6-hydroxy-6-methylheptan-2-yl)-1,9a-dimethyl-3-oxo-3,3a,6,6a,7,8,9,9a,10,10a-decahydrodicyclopenta [a,d][8]annulene-4-carbaldehyde and 6-(hydroxymethyl)-3',9,10a-trimethyl-5'-(2-methylprop-1-en-1-yl)-3a,4,4',5',10,10a-hexahydro-1H,3'H-spiro[dicyclopenta[a,d] [8]annulene-3,2'-furan]-5,7(2H,9aH)-dione. The relative configuration of drophiobolins A and B, which did not afford crystals suitable for X-ray analysis, was determined by NOESY experiments, while the absolute configuration was assigned by comparison of their experimental and TDDFT calculated electronic circular dichroism (ECD) spectra. The phytotoxic activity of drophiobolins A and B was tested by leaf-puncture assay on cultivated (Lycopersicon esculentum L.), as well as on host (Digitaria sanguinalis L.) and nonhost (Chenopodium album L.) weed plants, compared to that of ophiobolin A. Both of the newly identified ophiobolins showed significant phytotoxicity. Drophiobolins A and B exhibited cytotoxicity against Hela B cells with an IC50 value of 10 μM. However, they had a lesser or no effect against Hacat, H1299, and A431 cells when compared to that of ophiobolin A.
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Affiliation(s)
- Roukia Zatout
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri, Constantine1, BP, 325 Route de Aïn El Bey, 25017 Constantine, Algeria
| | - Marco Masi
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Felicia Sangermano
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Maurizio Vurro
- Istituto di Scienze delle Produzioni Alimentari, CNR, Via Amendola 122/O, 70126 Bari, Italy
| | - Maria Chiara Zonno
- Istituto di Scienze delle Produzioni Alimentari, CNR, Via Amendola 122/O, 70126 Bari, Italy
| | - Ernesto Santoro
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Viola Calabrò
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Stefano Superchi
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
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15
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Tao Y, Reisenauer K, Masi M, Evidente A, Taube JH, Romo D. Pharmacophore-Directed Retrosynthesis Applied to Ophiobolin A: Simplified Bicyclic Derivatives Displaying Anticancer Activity. Org Lett 2020; 22:8307-8312. [PMID: 33034457 PMCID: PMC7655722 DOI: 10.1021/acs.orglett.0c02938] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Pharmacophore-directed retrosynthesis applied to ophiobolin A led to bicyclic derivatives that were synthesized and display anticancer activity. Key features of the ultimate defensive synthetic strategy include a Michael addition/facially selective protonation sequence to set the critical C6 stereocenter and a ring-closing metathesis to form the cyclooctene. Cytotoxicity assays toward a breast cancer cell line (MDA-MB-231) confirm the anticipated importance of structural complexity for selectivity (vs MCF10A cells) while C3 variations modulate stability.
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Affiliation(s)
- Yongfeng Tao
- Department of Chemistry and Biochemistry, Baylor University, 101 Bagby Ave., Waco, TX 76798, United States
| | - Keighley Reisenauer
- Department of Biology, Baylor University, 101 Bagby Ave., Waco, TX 76798, United States
| | - Marco Masi
- Dipartimentodi Scienze Chimiche, Complesso Universitario Monte Sant’ Angelo, Napoli, Italy
| | - Antonio Evidente
- Dipartimentodi Scienze Chimiche, Complesso Universitario Monte Sant’ Angelo, Napoli, Italy
| | - Joseph H. Taube
- Department of Biology, Baylor University, 101 Bagby Ave., Waco, TX 76798, United States
| | - Daniel Romo
- Department of Chemistry and Biochemistry, Baylor University, 101 Bagby Ave., Waco, TX 76798, United States
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16
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Abstract
Covering: 1986 to 2020Natural products are an enduring source of chemical information useful for probing biologically relevant chemical space. Toward gathering further structure-activity relationship (SAR) information for a particular natural product, synthetic chemists traditionally proceeded first by a total synthesis effort followed by the synthesis of simplified derivatives. While this approach has proven fruitful, it often does not incorporate hypotheses regarding structural features necessary for bioactivity at the synthetic planning stage, but rather focuses on the rapid assembly of the targeted natural product; a goal that often supersedes the opportunity to gather SAR information en route to the natural product. Furthermore, access to simplified variants of a natural product possessing only the proposed essential structural features necessary for bioactivity, typically at lower oxidation states overall, is sometimes non-trivial from the original established synthetic route. In recent years, several synthetic design strategies were described to streamline the process of finding bioactive molecules in concert with fathering further SAR studies for targeted natural products. This review article will briefly discuss traditional retrosynthetic strategies and contrast them to selected examples of recent synthetic strategies for the investigation of biologically relevant chemical space revealed by natural products. These strategies include: diversity-oriented synthesis (DOS), biology-oriented synthesis (BIOS), diverted-total synthesis (DTS), analogue-oriented synthesis (AOS), two-phase synthesis, function-oriented synthesis (FOS), and computed affinity/dynamically ordered retrosynthesis (CANDOR). Finally, a description of pharmacophore-directed retrosynthesis (PDR) developed in our laboratory and initial applications will be presented that was initially inspired by a retrospective analysis of our synthetic route to pateamine A completed in 1998.
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Affiliation(s)
- Nathanyal J Truax
- Department of Chemistry & Biochemistry, Baylor University, Waco, Texas 76710, USA.
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17
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Lee SR, Lee D, Park M, Lee JC, Park HJ, Kang KS, Kim CE, Beemelmanns C, Kim KH. Absolute Configuration and Corrected NMR Assignment of 17-Hydroxycyclooctatin, a Fused 5-8-5 Tricyclic Diterpene. JOURNAL OF NATURAL PRODUCTS 2020; 83:354-361. [PMID: 31990198 DOI: 10.1021/acs.jnatprod.9b00837] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The absolute configuration and corrected NMR assignment of 17-hydroxycyclooctatin isolated from Streptomyces sp. M56 recovered from a nest of South African Macrotermes natalensis termites are reported. 17-Hydroxycyclooctatin is a unique tricyclic diterpene (C20) consisting of a fused 5-8-5 ring system, and in this study, its structure was unambiguously determined by a combination of HR-ESIMS and 1D and 2D NMR spectroscopic experiments to produce corrected NMR assignments. The absolute configuration of 17-hydroxycyclooctatin is reported for the first time in the current study using chemical reactions and quantum chemical ECD calculations. The corrected NMR assignments were verified using a gauge-including atomic orbital NMR chemical shifts calculation, followed by DP4 probability. To understand the pharmacological properties of 17-hydroxycyclooctatin, a network pharmacological approach and molecular docking analyses were used, which also predicted its effects on human breast cancer cell lines. Cytotoxicity and antiestrogenic activity of 17-hydroxycyclooctatin were determined, and it was found this compound may be an ERα antagonist.
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Affiliation(s)
- Seoung Rak Lee
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Dahae Lee
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Musun Park
- College of Korean Medicine , Gachon University , Seongnam 13120 , Republic of Korea
| | - Joo Chan Lee
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Hyun-Ju Park
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - Ki Sung Kang
- College of Korean Medicine , Gachon University , Seongnam 13120 , Republic of Korea
| | - Chang-Eop Kim
- College of Korean Medicine , Gachon University , Seongnam 13120 , Republic of Korea
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knöll-Institute , Beutenbergstraße 11a , 07745 Jena , Germany
| | - Ki Hyun Kim
- School of Pharmacy , Sungkyunkwan University , Suwon 16419 , Republic of Korea
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18
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Masi M, Dasari R, Evidente A, Mathieu V, Kornienko A. Chemistry and biology of ophiobolin A and its congeners. Bioorg Med Chem Lett 2019; 29:859-869. [DOI: 10.1016/j.bmcl.2019.02.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/03/2019] [Accepted: 02/06/2019] [Indexed: 11/16/2022]
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19
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Abstract
Total syntheses of biologically and structurally fascinating sesterterpenoids published between Jan. 2012 and Jan. 2018 are summarized and discussed here.
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Affiliation(s)
- Yuye Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
- Department of Chemistry and Shenzhen Grubbs Institute
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Shaoping Li
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
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20
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Shubin AV, Demidyuk IV, Komissarov AA, Rafieva LM, Kostrov SV. Cytoplasmic vacuolization in cell death and survival. Oncotarget 2018; 7:55863-55889. [PMID: 27331412 PMCID: PMC5342458 DOI: 10.18632/oncotarget.10150] [Citation(s) in RCA: 216] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 06/06/2016] [Indexed: 12/15/2022] Open
Abstract
Cytoplasmic vacuolization (also called cytoplasmic vacuolation) is a well-known morphological phenomenon observed in mammalian cells after exposure to bacterial or viral pathogens as well as to various natural and artificial low-molecular-weight compounds. Vacuolization often accompanies cell death; however, its role in cell death processes remains unclear. This can be attributed to studying vacuolization at the level of morphology for many years. At the same time, new data on the molecular mechanisms of the vacuole formation and structure have become available. In addition, numerous examples of the association between vacuolization and previously unknown cell death types have been reported. Here, we review these data to make a deeper insight into the role of cytoplasmic vacuolization in cell death and survival.
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Affiliation(s)
- Andrey V Shubin
- Laboratory of Protein Engineering, Institute of Molecular Genetics, Moscow, Russia.,Laboratory of Chemical Carcinogenesis, N.N. Blokhin Russian Cancer Research Center, Moscow, Russia.,Laboratory of Biologically Active Nanostructures, N.F. Gamaleya Institute of Epidemiology and Microbiology, Moscow, Russia
| | - Ilya V Demidyuk
- Laboratory of Protein Engineering, Institute of Molecular Genetics, Moscow, Russia
| | - Alexey A Komissarov
- Laboratory of Protein Engineering, Institute of Molecular Genetics, Moscow, Russia
| | - Lola M Rafieva
- Laboratory of Protein Engineering, Institute of Molecular Genetics, Moscow, Russia
| | - Sergey V Kostrov
- Laboratory of Protein Engineering, Institute of Molecular Genetics, Moscow, Russia
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21
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Kim IY, Kwon M, Choi MK, Lee D, Lee DM, Seo MJ, Choi KS. Ophiobolin A kills human glioblastoma cells by inducing endoplasmic reticulum stress via disruption of thiol proteostasis. Oncotarget 2017; 8:106740-106752. [PMID: 29290985 PMCID: PMC5739770 DOI: 10.18632/oncotarget.22537] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 10/28/2017] [Indexed: 12/25/2022] Open
Abstract
Ophiobolin A (OP-A), a fungal sesterterpene from Bipolaris oryzae, was recently shown to have anti-glioma activity. We show here that OP-A induces paraptosis-like cell death accompanied by dilation of the endoplasmic reticulum (ER) in glioma cells, and that CHOP-mediated ER stress plays a critical role in this process. OP-A-induced ER-derived dilation and cell death were found to be independent of reactive oxygen species, but were effectively blocked by various thiol antioxidants. We observed that OP-A can react with cysteinyl thiols to form Michael adducts, suggesting that the ability of OP-A to covalently modify free sulfhydryl groups on proteins may cause protein misfolding and the accumulation of misfolded proteins, leading to paraptosis-like cell death. Taken together, these results indicate that the disruption of thiol proteostasis may critically contribute to the anti-glioma activity of OP-A.
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Affiliation(s)
- In Young Kim
- Department of Biochemistry, Ajou University School of Medicine, Suwon, Korea.,BK21 Plus Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - MiRi Kwon
- Department of Biochemistry, Ajou University School of Medicine, Suwon, Korea.,BK21 Plus Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Min-Koo Choi
- College of Pharmacy, Dankook University, Cheonan, Korea
| | - Dongjoo Lee
- College of Pharmacy, Ajou University, Suwon, Korea
| | - Dong Min Lee
- Department of Biochemistry, Ajou University School of Medicine, Suwon, Korea.,BK21 Plus Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Min Ji Seo
- Department of Biochemistry, Ajou University School of Medicine, Suwon, Korea.,BK21 Plus Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Kyeong Sook Choi
- Department of Biochemistry, Ajou University School of Medicine, Suwon, Korea.,BK21 Plus Program, Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, Korea
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22
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Kornienko A, La Clair JJ. Covalent modification of biological targets with natural products through Paal-Knorr pyrrole formation. Nat Prod Rep 2017; 34:1051-1060. [PMID: 28808718 PMCID: PMC5759776 DOI: 10.1039/c7np00024c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Covering: up to June 2017Natural products and endogenous metabolites engage specific targets within tissues and cells through complex mechanisms. This review examines the extent to which natural systems have adopted the Paal-Knorr reaction to engage nucleophilic amine groups within biological targets. Current understanding of this mode of reactivity is limited by only a few examples of this reaction in a biological context. This highlight is intended to stimulate the scientific community to identify potential research directions and applications of the Paal-Knorr reaction in native and engineered biological systems.
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Affiliation(s)
- Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
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23
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Tian W, Deng Z, Hong K. The Biological Activities of Sesterterpenoid-Type Ophiobolins. Mar Drugs 2017; 15:md15070229. [PMID: 28718836 PMCID: PMC5532671 DOI: 10.3390/md15070229] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/10/2017] [Accepted: 07/13/2017] [Indexed: 12/11/2022] Open
Abstract
Ophiobolins (Ophs) are a group of tricarbocyclic sesterterpenoids whose structures contain a tricyclic 5-8-5 carbotricyclic skeleton. Thus far, 49 natural Ophs have been reported and assigned into A-W subgroups in order of discovery. While these sesterterpenoids were first characterized as highly effective phytotoxins, later investigations demonstrated that they display a broad spectrum of biological and pharmacological characteristics such as phytotoxic, antimicrobial, nematocidal, cytotoxic, anti-influenza and inflammation-promoting activities. These bioactive molecules are promising drug candidates due to the developments of their anti-proliferative activities against a vast number of cancer cell lines, multidrug resistance (MDR) cells and cancer stem cells (CSCs). Despite numerous studies on the biological functions of Ophs, their pharmacological mechanism still requires further research. This review summarizes the chemical structures, sources, and biological activities of the oph family and discusses its mechanisms and structure-activity relationship to lay the foundation for the future developments and applications of these promising molecules.
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Affiliation(s)
- Wei Tian
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| | - Zixin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
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24
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Anjum K, Shagufta BI, Abbas SQ, Patel S, Khan I, Shah SAA, Akhter N, Hassan SSU. Current status and future therapeutic perspectives of glioblastoma multiforme (GBM) therapy: A review. Biomed Pharmacother 2017; 92:681-689. [PMID: 28582760 DOI: 10.1016/j.biopha.2017.05.125] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/19/2017] [Accepted: 05/25/2017] [Indexed: 12/16/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the deadliest form of heterogeneous brain cancer. It affects an enormous number of patients every year and the survival is approximately 8 to 15 months. GBM has driven by complex signaling pathways and considered as a most challenging to treat. Standard treatment of GBM includes surgery, radiation therapy, chemotherapy and also the combined treatment. This review article described inter and intra- tumor heterogeneity of GMB. In addition, recent chemotherapeutic agents, with their mechanism of action have been defined. FDA-approved drugs also been focused over here and most importantly highlighting some natural and synthetic and novel anti- glioma agents, that are the main focus of researchers nowadays.
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Affiliation(s)
- Komal Anjum
- Ocean College, Zhejiang University, Hangzhou, 310058, China
| | - Bibi Ibtesam Shagufta
- Department of Zoology, Kohat University of Science and Technology (KUST), K.P.K 26000, Pakistan
| | - Syed Qamar Abbas
- Faculty of Pharmacy, Gomal University D.I.Khan, K.P.K 29050, Pakistan
| | - Seema Patel
- Bioinformatics and Medical Informatics Research Center, San Diego State University, San Diego-92182, USA
| | - Ishrat Khan
- Ocean College, Zhejiang University, Hangzhou, 310058, China
| | | | - Najeeb Akhter
- Ocean College, Zhejiang University, Hangzhou, 310058, China
| | - Syed Shams Ul Hassan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
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25
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Morrison R, Lodge T, Evidente A, Kiss R, Townley H. Ophiobolin A, a sesterpenoid fungal phytotoxin, displays different mechanisms of cell death in mammalian cells depending upon the cancer cell origin. Int J Oncol 2017; 50:773-786. [PMID: 28112374 PMCID: PMC5358713 DOI: 10.3892/ijo.2017.3858] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/15/2016] [Indexed: 12/20/2022] Open
Abstract
Herein we have undertaken a systematic analysis of the effects of the fungal derivative ophiobolin A (OphA) on eight cancer cell lines from different tissue types. The LD50 for each cell line was determined and the change in cell size determined. Flow cytometric analysis and western blotting were used to assess the cell death markers for early apoptosis, late apoptosis and necrosis, and the involvement of the caspase signalling pathway. Alterations in calcium levels and reactive oxygen species were assessed due to their integral involvement in intracellular signalling. Subsequently, the endoplasmic reticulum (ER) and mitochondrial responses were investigated more closely. The extent of ER swelling, and the upregulation of proteins involved in the unfolded protein responses (UPR) were seen to vary according to cell line. The mitochondria were also shown to behave differently in response to the OphA in the different cell lines in terms of the change in membrane potential, the total area of mitochondria in the cell and the number of mitochondrial bifurcations. The data obtained in the present study indicate that the cancer cell lines tested are unable to successfully activate the ER stress/UPR responses, and that the mitochondria appear to be a central player in OphA-induced cancer cell death.
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Affiliation(s)
- Rachel Morrison
- Department of Engineering Science, University of Oxford, Oxford, UK
| | - Tiffany Lodge
- Department of Obstetrics and Gynaecology, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Universita di Napoli Federico II Complesso Universitario Monte Sant'Angelo, Naples, Italy
| | - Robert Kiss
- Laboratoire de Cancérologie et de Toxicologie Experimentale, Faculté de Pharmacie, Université Libre de Bruxelles, Brussels, Belgium
| | - Helen Townley
- Department of Engineering Science, University of Oxford, Oxford, UK
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26
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Liu WT, Xu ZL, Mou XQ, Zhang BH, Bao W, Wang SH, Lee D, Lei LS, Zhang K. The synthesis of cycloalka[b]furans via an Au(i)-catalyzed tandem reaction of 3-yne-1,2-diols. Org Biomol Chem 2017; 15:6333-6337. [DOI: 10.1039/c7ob01179b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rapid and convenient approach toward substituted cycloalka[b]furan compounds has been developed via an Au(i)-catalyzed cyclization/1,2-rearrangement/aromatization cascade.
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Affiliation(s)
- Wei-Ting Liu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zheng-Liang Xu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xue-Qing Mou
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Bang-Hong Zhang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Wen Bao
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shao-Hua Wang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemical and Environmental Engineering
| | - Dongjun Lee
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Lin-Sheng Lei
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Kun Zhang
- School of Chemical and Environmental Engineering
- Wuyi University
- Jiangmen 529020
- P. R. China
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27
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Fanelli F, Reveglia P, Masi M, Mulè G, Zonno MC, Cimmino A, Vurro M, Evidente A. Influence of light on the biosynthesis of ophiobolin A by Bipolaris maydis. Nat Prod Res 2016; 31:909-917. [PMID: 27820961 DOI: 10.1080/14786419.2016.1253084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Ophiobolin A (O-A) is a sesterpenoid with numerous biological activities, including potential anticancer effects. Its production at an industrial level is hampered due to inability of fungus Bipolaris maydis to biosynthesise it in vitro in large amount. Among the environmental factors regulating fungal metabolism, light plays a crucial role. In this study, the use of different light wavelength (light emitting diodes (LEDs)) was evaluated to increase the O-A production. The white light allowed the highest production of the metabolite. The blue and green lights showed an inhibitory effect, reducing the production to 50%, as well as red and yellow but at a lower level. No correlation between fungal growth and metabolite production was found in relation to the light type. A novel application of LED technologies, which can be optimised to foster specific pathways and promote the production of metabolites having scientific and industrial interest was proposed.
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Affiliation(s)
- Francesca Fanelli
- a Institute of Sciences of Food Production , National Research Council , Bari , Italy
| | - Pierluigi Reveglia
- b Department of Chemical Sciences , University of Naples "Federico II", Complesso Universitario Monte S. Angelo , Napoli , Italy
| | - Marco Masi
- b Department of Chemical Sciences , University of Naples "Federico II", Complesso Universitario Monte S. Angelo , Napoli , Italy
| | - Giuseppina Mulè
- a Institute of Sciences of Food Production , National Research Council , Bari , Italy
| | - Maria Chiara Zonno
- a Institute of Sciences of Food Production , National Research Council , Bari , Italy
| | - Alessio Cimmino
- b Department of Chemical Sciences , University of Naples "Federico II", Complesso Universitario Monte S. Angelo , Napoli , Italy
| | - Maurizio Vurro
- a Institute of Sciences of Food Production , National Research Council , Bari , Italy
| | - Antonio Evidente
- b Department of Chemical Sciences , University of Naples "Federico II", Complesso Universitario Monte S. Angelo , Napoli , Italy
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28
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Beuzer P, Axelrod J, Trzoss L, Fenical W, Dasari R, Evidente A, Kornienko A, Cang H, La Clair JJ. Single dish gradient screening of small molecule localization. Org Biomol Chem 2016; 14:8241-5. [PMID: 27530345 PMCID: PMC5284121 DOI: 10.1039/c6ob01418f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Understanding trafficking in cells and tissues is one of the most critical steps in exploring the mechanisms and modes of action (MOAs) of a small molecule. Typically, deciphering the role of concentration presents one of the most difficult challenges associated with this task. Herein, we present a practical solution to this problem by developing concentration gradients within single dishes of cells. We demonstrate the method by evaluating fluorescently-labelled probes developed from two classes of natural products that have been identified as potential anti-cancer leads by STORM super-resolution microscopy.
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Affiliation(s)
- Paolo Beuzer
- The Salk Institute for Biological Sciences, 10010 North Torrey Pines Rd, La Jolla, CA 92037, USA.
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29
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Chidley C, Trauger SA, Birsoy K, O'Shea EK. The anticancer natural product ophiobolin A induces cytotoxicity by covalent modification of phosphatidylethanolamine. eLife 2016; 5. [PMID: 27403889 PMCID: PMC4942256 DOI: 10.7554/elife.14601] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 06/02/2016] [Indexed: 12/18/2022] Open
Abstract
Phenotypic screens allow the identification of small molecules with promising anticancer activity, but the difficulty in characterizing the mechanism of action of these compounds in human cells often undermines their value as drug leads. Here, we used a loss-of-function genetic screen in human haploid KBM7 cells to discover the mechanism of action of the anticancer natural product ophiobolin A (OPA). We found that genetic inactivation of de novo synthesis of phosphatidylethanolamine (PE) mitigates OPA cytotoxicity by reducing cellular PE levels. OPA reacts with the ethanolamine head group of PE in human cells to form pyrrole-containing covalent cytotoxic adducts and these adducts lead to lipid bilayer destabilization. Our characterization of this unusual cytotoxicity mechanism, made possible by unbiased genetic screening in human cells, suggests that the selective antitumor activity displayed by OPA may be due to altered membrane PE levels in cancer cells. DOI:http://dx.doi.org/10.7554/eLife.14601.001 Many of the medications that are available to treat cancer are either collected from natural sources or inspired by molecules existing in nature. While it is often challenging to understand how these natural compounds selectively kill cancer cells, characterizing these mechanisms is essential if researchers are to develop new anticancer drugs and treatments based on these compounds. Ophiobolin A is a compound naturally made by a fungus in order to attack plant cells. It is also able to potently kill cancer cells from humans. In particular, ophiobolin A is a promising candidate for treatment of a type of brain tumor called glioblastomas, which are notoriously difficult to treat with existing medications. Using a newly developed method, Chidley et al. have now tested which components of human cancer cells are important for ophiobolin A to exert its killing effect. The method revealed that ophiobolin A was less able to kill cancer cells if the cells had lower levels of a molecule called phosphatidylethanolamine in their surface membranes. This observation led Chidley et al. to show that ophiobolin A enters the membrane of human cancer cells and combines chemically with phosphatidylethanolamine to form a new composite molecule. Further experiments showed that the formation of this composite molecule disrupted a model membrane, which suggests that ophiobolin A kills cancer cells by breaking their membranes. The next challenge is to understand exactly how the composite molecule kills cancer cells via membrane disruption. It also remains unclear if the anticancer activity of ophiobolin A results from cancer cells having a membrane composition that is different from normal cells, and why this difference arises in the first place. DOI:http://dx.doi.org/10.7554/eLife.14601.002
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Affiliation(s)
- Christopher Chidley
- Faculty of Arts and Sciences Center for Systems Biology, Harvard University, Cambridge, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States.,Department of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.,Howard Hughes Medical Institute, Harvard University, Cambridge, United States
| | - Sunia A Trauger
- Small Molecule Mass Spectrometry Facility, Faculty of Arts and Sciences Center for Systems Biology, Harvard University, Cambridge, United States
| | - Kıvanç Birsoy
- Laboratory of Metabolic Regulation and Genetics, Rockefeller University, New York, United States
| | - Erin K O'Shea
- Faculty of Arts and Sciences Center for Systems Biology, Harvard University, Cambridge, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States.,Department of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.,Howard Hughes Medical Institute, Harvard University, Cambridge, United States
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30
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Sesterterpene ophiobolin biosynthesis involving multiple gene clusters in Aspergillus ustus. Sci Rep 2016; 6:27181. [PMID: 27273151 PMCID: PMC4895135 DOI: 10.1038/srep27181] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/13/2016] [Indexed: 12/18/2022] Open
Abstract
Terpenoids are the most diverse and abundant natural products among which sesterterpenes account for less than 2%, with very few reports on their biosynthesis. Ophiobolins are tricyclic 5–8–5 ring sesterterpenes with potential pharmaceutical application. Aspergillus ustus 094102 from mangrove rizhosphere produces ophiobolin and other terpenes. We obtained five gene cluster knockout mutants, with altered ophiobolin yield using genome sequencing and in silico analysis, combined with in vivo genetic manipulation. Involvement of the five gene clusters in ophiobolin synthesis was confirmed by investigation of the five key terpene synthesis relevant enzymes in each gene cluster, either by gene deletion and complementation or in vitro verification of protein function. The results demonstrate that ophiobolin skeleton biosynthesis involves five gene clusters, which are responsible for C15, C20, C25, and C30 terpenoid biosynthesis.
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31
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Diederich M, Cerella C. Non-canonical programmed cell death mechanisms triggered by natural compounds. Semin Cancer Biol 2016; 40-41:4-34. [PMID: 27262793 DOI: 10.1016/j.semcancer.2016.06.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 12/11/2022]
Abstract
Natural compounds are the fundament of pharmacological treatments and more than 50% of all anticancer drugs are of natural origins or at least derived from scaffolds present in Nature. Over the last 25 years, molecular mechanisms triggered by natural anticancer compounds were investigated. Emerging research showed that molecules of natural origins are useful for both preventive and therapeutic purposes by targeting essential hallmarks and enabling characteristics described by Hanahan and Weinberg. Moreover, natural compounds were able to change the differentiation status of selected cell types. One of the earliest response of cells treated by pharmacologically active compounds is the change of its morphology leading to ultra-structural perturbations: changes in membrane composition, cytoskeleton integrity, alterations of the endoplasmic reticulum, mitochondria and of the nucleus lead to formation of morphological alterations that are a characteristic of both compound and cancer type preceding cell death. Apoptosis and autophagy were traditionally considered as the most prominent cell death or cell death-related mechanisms. By now multiple other cell death modalities were described and most likely involved in response to chemotherapeutic treatment. It can be hypothesized that especially necrosis-related phenotypes triggered by various treatments or evolving from apoptotic or autophagic mechanisms, provide a more efficient therapeutic outcome depending on cancer type and genetic phenotype of the patient. In fact, the recent discovery of multiple regulated forms of necrosis and the initial elucidation of the corresponding cell signaling pathways appear nowadays as important tools to clarify the immunogenic potential of non-canonical forms of cell death induction.
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Affiliation(s)
- Marc Diederich
- Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.
| | - Claudia Cerella
- Laboratoire de Biologie Moléculaire et Cellulaire du Cancer, Hôpital Kirchberg, 9, rue Edward Steichen, L-2540 Luxembourg, Luxembourg
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32
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Lee D, Kim IY, Saha S, Choi KS. Paraptosis in the anti-cancer arsenal of natural products. Pharmacol Ther 2016; 162:120-33. [DOI: 10.1016/j.pharmthera.2016.01.003] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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