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Wu YJ, Huang TY, Huang CY, Lin CC, Wang WL, Huang HC, Liu SYV, Chao CH, Sheu JH. Anti-Inflammatory Halogenated Monoterpenes from the Red Alga Portieria hornemannii. Mar Drugs 2023; 21:493. [PMID: 37755106 PMCID: PMC10533049 DOI: 10.3390/md21090493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 09/13/2023] [Indexed: 09/28/2023] Open
Abstract
The chemical investigation of a red alga Portieria hornemannii enabled the identification of three new halogenated monoterpenes (1-3) along with two previously identified metabolites (4 and 5). Their structures were determined by spectroscopic analysis and also by utilizing single-crystal diffraction analysis and quantum chemical calculation, as well as by comparison with literature data. Further corrections for dichloro and dibromo carbons using the sorted training set (STS) method were established in this study to significantly improve the accuracy in GIAO 13C NMR calculation of compounds 1-3. To discover the potential bioactive metabolites from P. hornemannii, the anti-inflammatory activities of all compounds were examined. Compounds 1 and 3-5 showed significant anti-inflammatory activity to inhibit the production of pro-inflammatory cytokines in the LPS-stimulated mature dendritic cells.
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Affiliation(s)
- Yuan-Jhong Wu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (Y.-J.W.); (C.-Y.H.); (S.-Y.V.L.)
| | - Tzu-Yin Huang
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan;
| | - Chiung-Yao Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (Y.-J.W.); (C.-Y.H.); (S.-Y.V.L.)
| | - Chi-Chen Lin
- Institute of Biomedical Science, National Chung Hsing University, Taichung 402, Taiwan;
| | - Wei-Lung Wang
- Department of Biology, National Changhua University of Education, Changhua 500, Taiwan;
| | - Hui-Chi Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan;
| | - Shang-Yin Vanson Liu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (Y.-J.W.); (C.-Y.H.); (S.-Y.V.L.)
| | - Chih-Hua Chao
- School of Pharmacy, China Medical University, Taichung 404, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (Y.-J.W.); (C.-Y.H.); (S.-Y.V.L.)
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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El Gaafary M, Hafner S, Lang SJ, Jin L, Sabry OM, Vogel CV, Vanderwal CD, Syrovets T, Simmet T. A Novel Polyhalogenated Monoterpene Induces Cell Cycle Arrest and Apoptosis in Breast Cancer Cells. Mar Drugs 2019; 17:md17080437. [PMID: 31349625 PMCID: PMC6723102 DOI: 10.3390/md17080437] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 12/13/2022] Open
Abstract
Breast cancer is the most common cancer type and a primary cause of cancer mortality among females worldwide. Here, we analyzed the anticancer efficacy of a novel bromochlorinated monoterpene, PPM1, a synthetic analogue of polyhalogenated monoterpenes from Plocamium red algae and structurally similar non-brominated monoterpenes. PPM1, but not the non-brominated monoterpenes, decreased selectively the viability of several triple-negative as well as triple-positive breast cancer cells with different p53 status without significantly affecting normal breast epithelial cells. PPM1 induced accumulation of triple-negative MDA-MB-231 cells with 4N DNA content characterized by decreased histone H3-S10/T3 phosphorylation indicating cell cycle arrest in the G2 phase. Western immunoblot analysis revealed that PPM1 treatment triggered an initial rapid activation of Aurora kinases A/B/C and p21Waf1/Cip1 accumulation, which was followed by accumulation of polyploid >4N cells. Flow cytometric analysis showed mitochondrial potential disruption, caspase 3/7 activation, phosphatidylserine externalization, reduction of the amount polyploid cells, and DNA fragmentation consistent with induction of apoptosis. Cell viability was partially restored by the pan-caspase inhibitor Z-VAD-FMK indicating caspase contribution. In vivo, PPM1 inhibited growth, proliferation, and induced apoptosis in MDA-MB-231 xenografted onto the chick chorioallantoic membrane. Hence, Plocamium polyhalogenated monoterpenes and synthetic analogues deserve further exploration as promising anticancer lead compounds.
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Affiliation(s)
- Menna El Gaafary
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
| | - Sophia J Lang
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
| | - Lu Jin
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany
| | - Omar M Sabry
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Carl V Vogel
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, CA 92697-2025, USA
| | - Christopher D Vanderwal
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, CA 92697-2025, USA
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany.
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, D-89081 Ulm, Germany.
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Chung WJ, Vanderwal CD. Stereoselective Halogenation in Natural Product Synthesis. Angew Chem Int Ed Engl 2016; 55:4396-434. [PMID: 26833878 PMCID: PMC6028003 DOI: 10.1002/anie.201506388] [Citation(s) in RCA: 192] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/27/2015] [Indexed: 01/23/2023]
Abstract
At last count, nearly 5000 halogenated natural products have been discovered. In approximately half of these compounds, the carbon atom to which the halogen is bound is sp(3) -hybridized; therefore, there are an enormous number of natural products for which stereocontrolled halogenation must be a critical component of any synthesis strategy. In this Review, we critically discuss the methods and strategies used for stereoselective introduction of halogen atoms in the context of natural product synthesis. Using the successes of the past, we also attempt to identify gaps in our synthesis technology that would aid the synthesis of halogenated natural products, as well as existing methods that have not yet seen application in complex molecule synthesis. The chemistry described herein demonstrates yet again how natural products continue to provide the inspiration for critical advances in chemical synthesis.
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Affiliation(s)
- Won-jin Chung
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, South Korea.
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4
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Chung WJ, Vanderwal CD. Stereoselektive Halogenierungen in der Naturstoffsynthese. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201506388] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Won-jin Chung
- Department of Chemistry; Gwangju Institute of Science and Technology; Gwangju Südkorea
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5
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In/I2 mediated functional group transformation: a direct approach toward the selective conversion of dithioester to ester. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hu DX, Seidl FJ, Bucher C, Burns NZ. Catalytic chemo-, regio-, and enantioselective bromochlorination of allylic alcohols. J Am Chem Soc 2015; 137:3795-8. [PMID: 25738419 DOI: 10.1021/jacs.5b01384] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein we describe a highly chemo-, regio-, and enantioselective bromochlorination reaction of allylic alcohols, employing readily available halogen sources and a simple Schiff base as the chiral catalyst. The application of this interhalogenation reaction to a variety of substrates, the rapid enantioselective synthesis of a bromochlorinated natural product, and preliminary extension of this chemistry to dibromination and dichlorination are reported.
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Affiliation(s)
- Dennis X Hu
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Frederick J Seidl
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Cyril Bucher
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Noah Z Burns
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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Young RM, Schoenrock KM, von Salm JL, Amsler CD, Baker BJ. Structure and Function of Macroalgal Natural Products. Methods Mol Biol 2015; 1308:39-73. [PMID: 26108497 DOI: 10.1007/978-1-4939-2684-8_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Since the initial discovery of marine phyco-derived secondary metabolites in the 1950s there has been a rapid increase in the description of new algal natural products. These metabolites have multiple ecological roles as well as commercial value as potential drugs or lead compounds. With the emergence of resistance to our current arsenal of drugs as well as the development of new chemotherapies for currently untreatable diseases, new compounds must be sourced. As outlined in this chapter algae produce a diverse range of chemicals many of which have potential for the treatment of human afflictions.In this chapter we outline the classes of metabolites produced by this chemically rich group of organisms as well as their respective ecological roles in the environment. Algae are found in nearly every environment on earth, with many of these organisms possessing the ability to shape the ecosystem they inhabit. With current challenges to climate stability, understanding how these important organisms interact with their environment as well as one another might afford better insight into how they respond to a changing climate.
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Affiliation(s)
- Ryan M Young
- Department of Chemistry and Center for Drug Discovery and Innovation, University of South Florida, Tampa, FL, 33620, USA
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8
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Vattekkatte A, Gatto N, Schulze E, Brandt W, Boland W. Inhibition of a multiproduct terpene synthase from Medicago truncatula by 3-bromoprenyl diphosphates. Org Biomol Chem 2015; 13:4776-84. [DOI: 10.1039/c5ob00506j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
3-Bromo prenyl analogues bind to the active site and act as competitive inhibitors for terpene cyclases and -synthases.
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Affiliation(s)
- Abith Vattekkatte
- Department of Bioorganic Chemistry
- Max Planck Institute for Chemical Ecology
- D-07745 Jena
- Germany
| | - Nathalie Gatto
- Department of Bioorganic Chemistry
- Max Planck Institute for Chemical Ecology
- D-07745 Jena
- Germany
| | - Eva Schulze
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- 06120 Halle (Saale)
- Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- 06120 Halle (Saale)
- Germany
| | - Wilhelm Boland
- Department of Bioorganic Chemistry
- Max Planck Institute for Chemical Ecology
- D-07745 Jena
- Germany
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Braddock DC, Gao AX, White AJP, Whyte M. Studies towards the synthesis of halomon: asymmetric hexafunctionalisation of myrcene. Chem Commun (Camb) 2014; 50:13725-8. [DOI: 10.1039/c4cc06234e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A four-step sequence provides an enantiomerically pure hexafunctionalised myrcene as an advanced intermediate in the targeted synthesis of halomon.
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Affiliation(s)
| | - Alison X. Gao
- Department of Chemistry
- Imperial College London
- London, UK
| | | | - Mariko Whyte
- Department of Chemistry
- Imperial College London
- London, UK
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Yoshimitsu T, Fukumoto N, Tanaka T. Enantiocontrolled synthesis of polychlorinated hydrocarbon motifs: a nucleophilic multiple chlorination process revisited. J Org Chem 2009; 74:696-702. [PMID: 19053592 DOI: 10.1021/jo802093d] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polychlorinated hydrocarbon motifs have been synthesized in enantiomerically pure forms by means of nucleophilic multiple chlorinations of chiral epoxides, which stereospecifically incorporate halogen atoms into oxygenated molecular scaffolds. The present study demonstrates the scope of the N-chlorosuccinimide (NCS)/organophosphine reagent system that forms multiple sp(3)C-Cl bonds in a regularly repeating pattern with proper stereochemical configurations and evaluates its applicability to various epoxides having elaborate structures. It is noteworthy that tetrachlorinated motifs are produced in one step from bisepoxides by using NCS/Ph(3)P. Furthermore, Ph(2)PCl used in combination with NCS has been found to serve as a potentially useful alternative to NCS/Ph(3)P, especially for promoting dichlorination reactions of alkenyl-substituted epoxides.
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Affiliation(s)
- Takehiko Yoshimitsu
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan.
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11
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Lee EC, McCauley KM, Fu GC. Catalytic asymmetric synthesis of tertiary alkyl chlorides. Angew Chem Int Ed Engl 2007; 46:977-9. [PMID: 17211906 DOI: 10.1002/anie.200604312] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elaine C Lee
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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12
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Lee E, McCauley K, Fu G. Catalytic Asymmetric Synthesis of Tertiary Alkyl Chlorides. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604312] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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15
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Affiliation(s)
- T Sotokawa
- Department of Chemistry Graduate School of Science Tohoku University, and CREST, Japan Science and Technology Corporation (JST) Sendai 980-8578 (Japan)
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The manganese-mediated regioselective chlorination of allenes in synthetic approaches towards the spongistatins and halomon natural products. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)01410-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Schlama T, Baati R, Gouverneur V, Valleix A, Falck JR, Mioskowski C. Totalsynthese von (±)-Halomon über eine Johnson-Claisen-Umlagerung. Angew Chem Int Ed Engl 1998. [DOI: 10.1002/(sici)1521-3757(19980803)110:15<2226::aid-ange2226>3.0.co;2-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Jung ME, Nichols CJ. Synthesis of Methylene-Expanded Oxetanocin Isonucleosides in Both Enantiomeric Forms1. J Org Chem 1998. [DOI: 10.1021/jo971890c] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael E. Jung
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569
| | - Christopher J. Nichols
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569
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