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Si A, Landgraf AD, Geden S, Sucheck SJ, Rohde KH. Synthesis and Evaluation of Marine Natural Product-Inspired Meroterpenoids with Selective Activity toward Dormant Mycobacterium tuberculosis. ACS OMEGA 2022; 7:23487-23496. [PMID: 35847331 PMCID: PMC9281309 DOI: 10.1021/acsomega.2c01887] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tuberculosis is a disease caused primarily by the organism Mycobacterium tuberculosis (Mtb), which claims about 1.5 million lives every year. A challenge that impedes the elimination of this pathogen is the ability of Mtb to remain dormant after primary infection, thus creating a reservoir for the disease in the population that reactivates under more ideal conditions. A better understanding of the physiology of dormant Mtb and therapeutics able to kill these phenotypically tolerant bacilli will be critical for completely eradicating Mtb. Our groups are focusing on characterizing the activity of derivatives of the marine natural product (+)-puupehenone (1). Recently, the Rohde group reported that puupehedione (2) and 15-α-methoxypuupehenol (3) exhibit enhanced activity in an in vitro multi-stress dormancy model of Mtb. To optimize the antimycobacterial activity of these terpenoids, novel 15-α-methoxy- and 15-α-acetoxy-puupehenol esters were prepared from (+)-puupehenone (1) accessed through a (+)-sclareolide-derived β-hydroxyl aldehyde. For added diversity, various congeners related to (1) were also prepared from a common borono-sclareolide donor, which resulted in the synthesis of epi-puupehenol and the natural products (+)-chromazonarol and (+)-yahazunol. In total, we generated a library of 24 compounds, of which 14 were found to be active against Mtb, and the most active compounds retained the enhanced activity against dormant Mtb seen in the parent compound. Several of the 15-α-methoxy- and 15-α-acetoxy-puupehenol esters possessed potent activity against actively dividing and dormant Mtb. Intriguingly, the closely related triisobutyl derivative 16 showed similar activity to 1 in actively dividing Mtb but lost about 178-fold activity against dormant Mtb. However, the monopivaloyl compound 13 showed a modest 3- to 4-fold loss in activity in both actively dividing and dormant Mtb relative to the activity of 1 revealing the importance of the free OH at C19 supporting the potential role of quinone methide formation as critical for activity in dormant Mtb. Elucidating important structure-activity relationships and the mechanism of action of this natural product-inspired chemical series may yield insights into vulnerable drug targets in dormant bacilli and new therapeutics to more effectively target dormant Mtb.
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Affiliation(s)
- Anshupriya Si
- Department
of Chemistry and Biochemistry, University
of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United
States
| | - Alexander D. Landgraf
- Department
of Chemistry and Biochemistry, University
of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United
States
| | - Sandra Geden
- Division
of Immunity and Pathogenesis, Burnett School of Biomedical Sciences,
College of Medicine, University of Central
Florida, Orlando, Florida 32827, United
States
| | - Steven J. Sucheck
- Department
of Chemistry and Biochemistry, University
of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United
States
| | - Kyle H. Rohde
- Division
of Immunity and Pathogenesis, Burnett School of Biomedical Sciences,
College of Medicine, University of Central
Florida, Orlando, Florida 32827, United
States
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Sahoo A, Fuloria S, Swain SS, Panda SK, Sekar M, Subramaniyan V, Panda M, Jena AK, Sathasivam KV, Fuloria NK. Potential of Marine Terpenoids against SARS-CoV-2: An In Silico Drug Development Approach. Biomedicines 2021; 9:biomedicines9111505. [PMID: 34829734 PMCID: PMC8614725 DOI: 10.3390/biomedicines9111505] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/17/2021] [Accepted: 10/17/2021] [Indexed: 12/11/2022] Open
Abstract
In an emergency, drug repurposing is the best alternative option against newly emerged severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. However, several bioactive natural products have shown potential against SARS-CoV-2 in recent studies. The present study selected sixty-eight broad-spectrum antiviral marine terpenoids and performed molecular docking against two novel SARS-CoV-2 enzymes (main protease or Mpro or 3CLpro) and RNA-dependent RNA polymerase (RdRp). In addition, the present study analysed the physiochemical-toxicity-pharmacokinetic profile, structural activity relationship, and phylogenetic tree with various computational tools to select the 'lead' candidate. The genomic diversity study with multiple sequence analyses and phylogenetic tree confirmed that the newly emerged SARS-CoV-2 strain was up to 96% structurally similar to existing CoV-strains. Furthermore, the anti-SARS-CoV-2 potency based on a protein-ligand docking score (kcal/mol) exposed that the marine terpenoid brevione F (-8.4) and stachyflin (-8.4) exhibited similar activity with the reference antiviral drugs lopinavir (-8.4) and darunavir (-7.5) against the target SARS-CoV-Mpro. Similarly, marine terpenoids such as xiamycin (-9.3), thyrsiferol (-9.2), liouvilloside B (-8.9), liouvilloside A (-8.8), and stachyflin (-8.7) exhibited comparatively higher docking scores than the referral drug remdesivir (-7.4), and favipiravir (-5.7) against the target SARS-CoV-2-RdRp. The above in silico investigations concluded that stachyflin is the most 'lead' candidate with the most potential against SARS-CoV-2. Previously, stachyflin also exhibited potential activity against HSV-1 and CoV-A59 within IC50, 0.16-0.82 µM. Therefore, some additional pharmacological studies are needed to develop 'stachyflin' as a drug against SARS-CoV-2.
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Affiliation(s)
- Alaka Sahoo
- Department of Skin & VD, Institute of Medical Sciences and SUM Hospital, Siksha ‘O’ Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India; (A.S.); (M.P.); (A.K.J.)
| | - Shivkanya Fuloria
- Faculty of Pharmacy, Centre of Excellence for Biomaterials Engineering, AIMST University, Bedong 08100, Kedah, Malaysia
- Correspondence: (S.F.); (N.K.F.)
| | - Shasank S. Swain
- Division of Microbiology and NCDs, ICMR–Regional Medical Research Centre, Bhubaneswar 751023, Odisha, India;
| | - Sujogya K. Panda
- Center of Environment Climate Change and Public Health, Utkal University, Vani Vihar, Bhubaneswar 751004, Odisha, India;
| | - Mahendran Sekar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh 30450, Perak, Malaysia;
| | - Vetriselvan Subramaniyan
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jalan SP 2, Bandar Saujana Putra, Jenjarom 42610, Selangor, Malaysia;
| | - Maitreyee Panda
- Department of Skin & VD, Institute of Medical Sciences and SUM Hospital, Siksha ‘O’ Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India; (A.S.); (M.P.); (A.K.J.)
| | - Ajaya K. Jena
- Department of Skin & VD, Institute of Medical Sciences and SUM Hospital, Siksha ‘O’ Anusandhan Deemed to be University, Bhubaneswar 751003, Odisha, India; (A.S.); (M.P.); (A.K.J.)
| | - Kathiresan V. Sathasivam
- Faculty of Applied Science, Centre of Excellence for Biomaterials Engineering, AIMST University, Bedong 08100, Kedah, Malaysia;
| | - Neeraj Kumar Fuloria
- Faculty of Pharmacy, Centre of Excellence for Biomaterials Engineering, AIMST University, Bedong 08100, Kedah, Malaysia
- Correspondence: (S.F.); (N.K.F.)
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3
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Tripathi SK, Feng Q, Liu L, Levin DE, Roy KK, Doerksen RJ, Baerson SR, Shi X, Pan X, Xu WH, Li XC, Clark AM, Agarwal AK. Puupehenone, a Marine-Sponge-Derived Sesquiterpene Quinone, Potentiates the Antifungal Drug Caspofungin by Disrupting Hsp90 Activity and the Cell Wall Integrity Pathway. mSphere 2020; 5:e00818-19. [PMID: 31915228 PMCID: PMC6952202 DOI: 10.1128/msphere.00818-19] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/04/2019] [Indexed: 02/02/2023] Open
Abstract
The cell wall-targeting echinocandin antifungals, although potent and well tolerated, are inadequate in treating fungal infections due to their narrow spectrum of activity and their propensity to induce pathogen resistance. A promising strategy to overcome these drawbacks is to combine echinocandins with a molecule that improves their activity and also disrupts drug adaptation pathways. In this study, we show that puupehenone (PUUP), a marine-sponge-derived sesquiterpene quinone, potentiates the echinocandin drug caspofungin (CAS) in CAS-resistant fungal pathogens. We have conducted RNA sequencing (RNA-seq) analysis, followed by genetic and molecular studies, to elucidate PUUP's CAS-potentiating mechanism. We found that the combination of CAS and PUUP blocked the induction of CAS-responding genes required for the adaptation to cell wall stress through the cell wall integrity (CWI) pathway. Further analysis showed that PUUP inhibited the activation of Slt2 (Mpk1), the terminal mitogen-activated protein (MAP) kinase in this pathway. We also found that PUUP induced heat shock response genes and inhibited the activity of heat shock protein 90 (Hsp90). Molecular docking studies predicted that PUUP occupies a binding site on Hsp90 required for the interaction between Hsp90 and its cochaperone Cdc37. Thus, we show that PUUP potentiates CAS activity by a previously undescribed mechanism which involves a disruption of Hsp90 activity and the CWI pathway. Given the requirement of the Hsp90-Cdc37 complex in Slt2 activation, we suggest that inhibitors of this complex would disrupt the CWI pathway and synergize with echinocandins. Therefore, the identification of PUUP's CAS-potentiating mechanism has important implications in the development of new antifungal combination therapies.IMPORTANCE Fungal infections cause more fatalities worldwide each year than malaria or tuberculosis. Currently available antifungal drugs have various limitations, including host toxicity, narrow spectrum of activity, and pathogen resistance. Combining these drugs with small molecules that can overcome these limitations is a useful strategy for extending their clinical use. We have investigated the molecular mechanism by which a marine-derived compound potentiates the activity of the antifungal echinocandin caspofungin. Our findings revealed a mechanism, different from previously reported caspofungin potentiators, in which potentiation is achieved by the disruption of Hsp90 activity and signaling through the cell wall integrity pathway, processes that play important roles in the adaptation to caspofungin in fungal pathogens. Given the importance of stress adaptation in the development of echinocandin resistance, this work will serve as a starting point in the development of new combination therapies that will likely be more effective and less prone to pathogen resistance.
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Affiliation(s)
- Siddharth K Tripathi
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Qin Feng
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Li Liu
- Department of Molecular and Cell Biology, Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts, USA
| | - David E Levin
- Department of Molecular and Cell Biology, Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts, USA
| | - Kuldeep K Roy
- Division of Medicinal Chemistry, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Robert J Doerksen
- Division of Medicinal Chemistry, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Scott R Baerson
- Natural Products Utilization Research Unit, U.S. Department of Agriculture, Agricultural Research Service, Oxford, Mississippi, USA
| | - Xiaomin Shi
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Xuewen Pan
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Wen-Hui Xu
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Xing-Cong Li
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Alice M Clark
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
| | - Ameeta K Agarwal
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
- Division of Pharmacology, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
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4
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Hou XM, Wang CY, Gerwick WH, Shao CL. Marine natural products as potential anti-tubercular agents. Eur J Med Chem 2019; 165:273-292. [PMID: 30685527 DOI: 10.1016/j.ejmech.2019.01.026] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/11/2019] [Accepted: 01/11/2019] [Indexed: 02/01/2023]
Abstract
Tuberculosis has been one of the greatest global health challenges of all time. Although the current first-line anti-tuberculosis (anti-TB) medicines used in the clinic have reduced mortality, multidrug-resistance and extensively drug-resistance forms of the disease have now spread worldwide and become a global problem. Even so, few new clinically approved drugs have emerged during the past 30 years. Highly biodiverse marine organisms have received considerable attention for drug discovery in the past couple of decades, and emerging TB drug resistance has motivated interest in assessing marine natural products (MNPs) in the treatment of this disease. So far, more than 170 compounds have been isolated from marine organisms with anti-TB properties, ten of which exhibit potent activity and have the potential for further development. This review systematically surveys MNPs with anti-TB activity and illustrates the impact of these compounds on drug discovery research against tuberculosis.
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Affiliation(s)
- Xue-Mei Hou
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, People's Republic of China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, People's Republic of China
| | - Chang-Yun Wang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, People's Republic of China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, People's Republic of China
| | - William H Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, 92093, United States.
| | - Chang-Lun Shao
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, People's Republic of China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, People's Republic of China.
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5
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Martínez-Poveda B, Quesada AR, Medina MÁ. Pleiotropic Role of Puupehenones in Biomedical Research. Mar Drugs 2017; 15:md15100325. [PMID: 29065486 PMCID: PMC5666431 DOI: 10.3390/md15100325] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/27/2017] [Accepted: 10/16/2017] [Indexed: 12/11/2022] Open
Abstract
Marine sponges represent a vast source of metabolites with very interesting potential biomedical applications. Puupehenones are sesquiterpene quinones isolated from sponges of the orders Verongida and Dictyoceratida. This family of chemical compounds is composed of a high number of metabolites, including puupehenone, the most characteristic compound of the family. Chemical synthesis of puupehenone has been reached by different routes, and the special chemical reactivity of this molecule has allowed the synthesis of many puupehenone-derived compounds. The biological activities of puupehenones are very diverse, including antiangiogenic, antitumoral, antioxidant, antimicrobial, immunomodulatory and antiatherosclerotic effects. Despite the very important roles described for puupehenones concerning different pathologies, the exact mechanism of action of these compounds and the putative therapeutic effects in vivo remain to be elucidated. This review offers an updated and global view about the biology of puupehenones and their therapeutic possibilities in human diseases such as cancer.
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Affiliation(s)
- Beatriz Martínez-Poveda
- Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, Andalucía Tech, and IBIMA; E-29071 Málaga, Spain.
| | - Ana R Quesada
- Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, Andalucía Tech, and IBIMA; E-29071 Málaga, Spain.
- Unidad 741 de CIBER "de Enfermedades Raras", E-29071 Málaga, Spain.
| | - Miguel Ángel Medina
- Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, Andalucía Tech, and IBIMA; E-29071 Málaga, Spain.
- Unidad 741 de CIBER "de Enfermedades Raras", E-29071 Málaga, Spain.
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Kiriazis A, Aumüller IB, Arnaudova R, Brito V, Rüffer T, Lang H, Silvestre SM, Koskinen PJ, Yli-Kauhaluoma J. Nucleophilic Substitution of Hydrogen Facilitated by Quinone Methide Moieties in Benzo[cd]azulen-3-ones. Org Lett 2017; 19:2030-2033. [PMID: 28379712 DOI: 10.1021/acs.orglett.7b00588] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The built-in o- and p-QM (QM = quinone methide) moieties in benzo[cd]azulen-3-ones account for an easy switch between the bridged 10π- and 6π-aromatic systems in organic synthesis. We report conjugate additions, oxidative nucleophilic substitutions of hydrogen, and reversible Michael additions under very mild conditions. In the presence of thiol nucleophiles, the protonated σH-adducts could be isolated and characterized. The typical preference for either the o- or p-QM moiety led to high regioselectivity. Furthermore, the inhibitory potency of the novel benzo[cd]azulenes against the human Pim-1 kinase was evaluated.
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Affiliation(s)
- Alexandros Kiriazis
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki , P.O. Box 56, Viikinkaari 5 E, FI-00014 Helsinki, Finland
| | - Ingo B Aumüller
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki , P.O. Box 56, Viikinkaari 5 E, FI-00014 Helsinki, Finland
| | - Ralica Arnaudova
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki , P.O. Box 56, Viikinkaari 5 E, FI-00014 Helsinki, Finland.,Department of Biology, University of Turku , Vesilinnantie 5, FI-20014 Turku, Finland
| | - Vanessa Brito
- Health Sciences Research Centre, University of Beira Interior , Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Tobias Rüffer
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie , D-09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie , D-09107 Chemnitz, Germany
| | - Samuel M Silvestre
- Health Sciences Research Centre, University of Beira Interior , Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.,Centre for Neuroscience and Cell Biology , 3004-504 Coimbra, Portugal
| | - Päivi J Koskinen
- Department of Biology, University of Turku , Vesilinnantie 5, FI-20014 Turku, Finland
| | - Jari Yli-Kauhaluoma
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki , P.O. Box 56, Viikinkaari 5 E, FI-00014 Helsinki, Finland
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7
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Goswami P, Singh G, Vijaya Anand R. N-Heterocyclic Carbene Catalyzed 1,6-Conjugate Addition of Me3Si-CN to para-Quinone Methides and Fuchsones: Access to α-Arylated Nitriles. Org Lett 2017; 19:1982-1985. [DOI: 10.1021/acs.orglett.7b00508] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Prithwish Goswami
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab - 140306, India
| | - Gurdeep Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab - 140306, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab - 140306, India
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Shan WG, Ying YM, Ma LF, Zhan ZJ. Drimane-Related Merosesquiterpenoids, a Promising Library of Metabolites for Drug Development. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2015. [DOI: 10.1016/b978-0-444-63473-3.00006-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Xu WH, Ding Y, Jacob MR, Agarwal AK, Clark AM, Ferreira D, Liang ZS, Li XC. Puupehanol, a sesquiterpene-dihydroquinone derivative from the marine sponge Hyrtios sp. Bioorg Med Chem Lett 2009; 19:6140-3. [PMID: 19783432 PMCID: PMC2760646 DOI: 10.1016/j.bmcl.2009.09.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2009] [Revised: 09/02/2009] [Accepted: 09/04/2009] [Indexed: 11/21/2022]
Abstract
Puupehanol (1), a new sesquiterpene-dihydroquinone derivative, was isolated from the marine sponge Hyrtios sp., along with the known compounds puupehenone (2) and chloropuupehenone (3) that are responsible for the antifungal activity observed in the extract. The structure of 1 was established as (20R,21R)-21-hydroxy-20,21-dihydropuupehenone by extensive spectroscopic and computational methods. Compound 2 exhibited potent activity against Cryptococcus neoformans and Candida krusei with MFCs of 1.25 and 2.50 microg/mL, respectively.
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Affiliation(s)
- Wen-Hui Xu
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- College of Life Sciences, Northwest A & F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Yuanqing Ding
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Melissa R. Jacob
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Ameeta K. Agarwal
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Alice M. Clark
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Department of Pharmacognosy, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Daneel Ferreira
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Department of Pharmacognosy, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
| | - Zong-Suo Liang
- College of Life Sciences, Northwest A & F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Xing-Cong Li
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
- Department of Pharmacognosy, School of Pharmacy, The University of Mississippi, University, MS 38677, USA
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11
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Ueda K, Ogi T, Sato A, R. O. Siwu E, Kita M, Uemura D. Cytotoxic Haterumadienone Congeners from the Okinawan Marine Sponge Dysidea Sp. HETEROCYCLES 2007. [DOI: 10.3987/com-06-s(k)17] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Douat-Casassus C, Marchand-Geneste N, Diez E, Aznar C, Picard P, Geoffre S, Huet A, Bourguet-Kondracki ML, Gervois N, Jotereau F, Quideau S. Covalent modification of a melanoma-derived antigenic peptide with a natural quinone methide. Preliminary chemical, molecular modelling and immunological evaluation studies. MOLECULAR BIOSYSTEMS 2006; 2:240-9. [PMID: 16880942 DOI: 10.1039/b518044a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A LigandFit shape-directed docking methodology was used to identify the best position at which the melanoma-derived MHC class-I HLA-A2-binding antigenic peptide ELAGIGILTV could be modified by attaching a small molecule capable of fitting at the interface of complementary determining regional (CDR) loops of a T-cell receptor (TCR) while triggering T-cell responses. The small molecule selected here for determining the feasibility of this alternative track to chemical alteration of antigenic peptides was the electrophilic quinone methide (+)-puupehenone (), a natural product that belongs to a family of marine metabolites capable of expressing immunomodulatory activities. A preliminary chemical reactivity model study revealed the efficacy of the thiol group of a cysteine (C) side-chain in its nucleophilic addition reaction with in a regio- and diastereoselective manner. The best TCR/HLA-A2 ligand [i.e., ELAGCGILTV-S-puupehenol ()] then identified by the LigandFit docking procedure was synthesized and used to pulse HLA-A2(+) T2 cells for T-cell stimulation. Among the ELAGIGILTV-specific T-cell clones we tested, five of them recognized the conjugate in spite of its low binding affinity for the HLA-A2 molecules. The resulting T-cell stimulation was determined through the intracytoplasmic secretion of IFN-gamma and the percentage of T-cells thus activated. These highly encouraging results indicate that small non-peptidic natural product-derived molecules attached onto the central part of an antigenic peptide can fit at the TCR/HLA-A2 interface with induction of T-cell responses.
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Affiliation(s)
- Céline Douat-Casassus
- Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, F-33607 Pessac Cedex, France
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13
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Reactivity and biological activity of the marine sesquiterpene hydroquinone avarol and related compounds from sponges of the order Dictyoceratida. Molecules 2006; 11:1-33. [PMID: 17962742 DOI: 10.3390/11010001] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2005] [Revised: 09/22/2005] [Accepted: 09/22/2005] [Indexed: 11/17/2022] Open
Abstract
A review of results of bioactivity and reactivity examinations of marine sesquiterpene (hydro)quinones is presented. The article is focused mostly on friedo- rearranged drimane structural types, isolated from sponges of the order Dictyoceratida. Examples of structural correlations are outlined. Available results on the mechanism of redox processes and examinations of chemo- and regioselectivity in addition reactions are presented and, where possible, analyzed in relation to established bioactivities. Most of the bioactivity examinations are concerned with antitumor activities and the mechanism thereof, such as DNA damage, arylation of nucleophiles, tubulin assembly inhibition, protein kinase inhibition, inhibition of the arachidonic cascade, etc. Perspectives on marine drug development are discussed with respect to biotechnological methods and synthesis. Examples of the recognition of validated core structures and synthesis of structurally simplified compounds retaining modes of activity are analyzed.
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Kumar D, Veldhuyzen WF, Zhou Q, Rokita SE. Conjugation of a Hairpin Pyrrole-Imidazole Polyamide to a Quinone Methide for Control of DNA Cross-Linking. Bioconjug Chem 2004; 15:915-22. [PMID: 15264882 DOI: 10.1021/bc049941h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of quinone methide precursors designed for DNA cross-linking were prepared and conjugated to a pyrrole-imidazole polyamide for selective association to the minor groove. Although reaction was only observed for DNA containing the predicted recognition sequence, yields of strand alkylation were low. Interstrand cross-linking was more efficient than alkylation but still quite modest and equivalent to that generated by a comparable conjugate containing the N-mustard chlorambucil. Varying the length of the linker connecting the polyamide and quinone methide derivative did not greatly affect the yield of DNA cross-linking. Instead, intramolecular trapping of the quinone methide intermediate by nucleophiles of the attached polyamide appears to be the major determinant that limits its reaction with DNA. Self-adducts of the quinone methide conjugate form readily and irreversibly as detected by a combination of chromatography and mass spectroscopy. This result is unlike comparable self-adducts observed for oligonucleotide conjugates that form more slowly and remain reversible. Equivalent intramolecular alkylation of a polyamide by its attached chlorambucil mustard was not observed under similar condition. The presence of DNA, however, did facilitate hydrolysis of this mustard conjugate.
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Affiliation(s)
- Dalip Kumar
- Department of Chemistry and Biochemistry, University of Maryland, College Park 20742, USA
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Neilson AH. Biological Effects and Biosynthesis of Brominated Metabolites. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2003. [DOI: 10.1007/978-3-540-37055-0_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
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Piña IC, Sanders ML, Crews P. Puupehenone congeners from an indo-pacific hyrtios sponge. JOURNAL OF NATURAL PRODUCTS 2003; 66:2-6. [PMID: 12542334 DOI: 10.1021/np020279s] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
An investigation of the constituents from an Indonesian Hyrtios sponge has provided new insights about the chemistry and biology of the puupehenones, a unique class of merosesquiterpenes. The parent compound, puupehenone (2), has been repeatedly encountered in sponges from four distinct orders. In this study we characterized three compounds, (+)-(5S,8S,9R,10S)-20-methoxypuupehenone (3), (+)-(5S,8S,10S)-20-methoxy-9,15-ene-puupehenol (4), and (+)-(5S,8S,9R,10S)-15,20-dimethoxypuupehenol (5). Their structures were supported by complete sets of spectroscopic data along with comparisons to literature properties. While 5 was observed in the crude extracts, it was also heat labile and could be converted at 35 degrees C to a mixture of 3 and 4. The possibility that 3, 4, and 5 are formed from 2 by a series of methanol additions is discussed. The bioactivity of these compounds in soft-agar cytotoxicity tests was also explored.
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Affiliation(s)
- Ivette C Piña
- Department of Chemistry and Biochemistry, and Institute of Marine Sciences, University of California, Santa Cruz, California 95064, USA
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Quideau S, Lebon M, Lamidey AM. Enantiospecific synthesis of the antituberculosis marine sponge metabolite (+)-puupehenone. The arenol oxidative activation route. Org Lett 2002; 4:3975-8. [PMID: 12599506 DOI: 10.1021/ol026855t] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[formula: see text] The total synthesis of the marine sesquiterpene quinone (+)-puupehenone, a promising new antituberculosis agent, was achieved in 10 steps starting from commercially available (+)-sclareolide. The key feature of this synthesis is the construction of the heterocycle via an intramolecular attack of the terpenoid-derived C-8 oxygen function onto an oxidatively activated 1,2-dihydroxyphenyl unit.
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Affiliation(s)
- Stéphane Quideau
- Laboratoire de Chimie des Substances Végétales, Centre de Recherche en Chimie Moléculaire, Université Bordeaux 1, 351 Cours de la Libération, F-33405 Talence, France.
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Takao KI, Sasaki T, Kozaki T, Yanagisawa Y, Tadano KI, Kawashima A, Shinonaga H. Syntheses and absolute stereochemistries of UPA0043 and UPA0044, cytotoxic antibiotics having a p-quinone-methide structure. Org Lett 2001; 3:4291-4. [PMID: 11784200 DOI: 10.1021/ol016960n] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first syntheses of new antibiotics UPA0043 and UPA0044 were accomplished starting from commercially available 18beta-glycyrrhetinic acid and vanillin. The present syntheses involve the coupling of a sesquiterpenoid aldehyde and an aryllithium, the stereoselective formation of a p-quinone-methide system, and regioselective intramolecular cyclization via an epoxy ring opening. [reaction: see text]
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Affiliation(s)
- K I Takao
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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El Sayed KA, Bartyzel P, Shen X, Perry TL, Zjawiony JK, Hamann MT. Marine Natural Products as Antituberculosis Agents. Tetrahedron 2000. [DOI: 10.1016/s0040-4020(99)01093-5] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Dyer RG, Turnbull KD. Hydrolytic Stabilization of Protected p-Hydroxybenzyl Halides Designed as Latent Quinone Methide Precursors. J Org Chem 1999. [DOI: 10.1021/jo991085t] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Robert G. Dyer
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701
| | - Kenneth D. Turnbull
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701
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Bourguet-Kondracki ML, Lacombe F, Guyot M. Methanol adduct of puupehenone, a biologically active derivative from the marine sponge Hyrtios species. JOURNAL OF NATURAL PRODUCTS 1999; 62:1304-1305. [PMID: 10514320 DOI: 10.1021/np9900829] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A methanol adduct of puupehenone (1), 15alpha-methoxypuupehenol (2), an artifact resulting from the action of MeOH on puupehenone, was isolated during purification of the CH(2)Cl(2) extract of the New Caledonian marine sponge Hyrtios sp., as the major constituent. Its chemical structure was elucidated by 2D NMR experiments. Compound 2 displayed similar antimicrobial and antifungal activity as puupehenone and a lower cytotoxic activity toward KB cells with ED(50) values of 6 and 0.5 microg/mL, respectively. Compound 2 was slightly more active against three strains of Plasmodium falciparum than puupehenone.
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Affiliation(s)
- M L Bourguet-Kondracki
- Laboratoire de Chimie des Substances Naturelles, Associé au CNRS, Muséum National d'Histoire Naturelle, 63 Rue Buffon, 75005 Paris, France
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