1
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Computational Approaches to Enzyme Inhibition by Marine Natural Products in the Search for New Drugs. Mar Drugs 2023; 21:md21020100. [PMID: 36827141 PMCID: PMC9961086 DOI: 10.3390/md21020100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/03/2023] Open
Abstract
The exploration of biologically relevant chemical space for the discovery of small bioactive molecules present in marine organisms has led not only to important advances in certain therapeutic areas, but also to a better understanding of many life processes. The still largely untapped reservoir of countless metabolites that play biological roles in marine invertebrates and microorganisms opens new avenues and poses new challenges for research. Computational technologies provide the means to (i) organize chemical and biological information in easily searchable and hyperlinked databases and knowledgebases; (ii) carry out cheminformatic analyses on natural products; (iii) mine microbial genomes for known and cryptic biosynthetic pathways; (iv) explore global networks that connect active compounds to their targets (often including enzymes); (v) solve structures of ligands, targets, and their respective complexes using X-ray crystallography and NMR techniques, thus enabling virtual screening and structure-based drug design; and (vi) build molecular models to simulate ligand binding and understand mechanisms of action in atomic detail. Marine natural products are viewed today not only as potential drugs, but also as an invaluable source of chemical inspiration for the development of novel chemotypes to be used in chemical biology and medicinal chemistry research.
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2
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Alvariño R, Alfonso A, Pech-Puch D, Gegunde S, Rodríguez J, Vieytes MR, Jiménez C, Botana LM. Furanoditerpenes from Spongia (Spongia) tubulifera Display Mitochondrial-Mediated Neuroprotective Effects by Targeting Cyclophilin D. ACS Chem Neurosci 2022; 13:2449-2463. [PMID: 35901231 PMCID: PMC9686139 DOI: 10.1021/acschemneuro.2c00208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Neuroprotective properties of five previously described furanoditerpenes 1-5, isolated from Spongia (Spongia) tubulifera, were evaluated in an in vitro oxidative stress model in SH-SY5Y cells. Dose-response treatments revealed that 1-5 improved cell survival at nanomolar concentrations through the restoration of mitochondrial membrane potential and the reduction of reactive oxygen species. Their ability to prevent the mitochondrial permeability transition pore opening was also assessed, finding that 4 and 5 inhibited the channel at 0.001 μM. This inhibition was accompanied by a decrease in the expression of cyclophilin D, the main regulator of the pore, which was also reduced by 1 and 2. However, the activation of ERK and GSK3β, upstream modulators of the channel, was not affected by compounds. Therefore, their ability to bind cyclophilin D was evaluated by surface plasmon resonance, observing that 2-5 presented equilibrium dissociation constants in the micromolar range. All compounds also showed affinity for cyclophilin A, being 1 selective toward this isoform, while 2 and 5 exhibited selectivity for cyclophilin D. When the effects on the intracellular expression of cyclophilins A-C were determined, it was found that only 1 decreased cyclophilin A, while cyclophilins B and C were diminished by most compounds, displaying enhanced effects under oxidative stress conditions. Results indicate that furanoditerpenes 1-5 have mitochondrial-mediated neuroprotective properties through direct interaction with cyclophilin D. Due to the important role of this protein in oxidative stress and inflammation, compounds are promising drugs for new therapeutic strategies against neurodegeneration.
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Affiliation(s)
- Rebeca Alvariño
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002 Lugo, Spain,Grupo
Investigación Biodiscovery, IDIS, 27002 Lugo, Spain
| | - Amparo Alfonso
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002 Lugo, Spain,Grupo
Investigación Biodiscovery, IDIS, 27002 Lugo, Spain
| | - Dawrin Pech-Puch
- Centro
de Investigacións Científicas Avanzadas (CICA) e Departamento
de Química, Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain,Departamento
de Biología Marina, Campus de Ciencias Biológicas y
Agropecuarias, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, 97100 Mérida, Yucatán, Mexico
| | - Sandra Gegunde
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002 Lugo, Spain,Grupo
Investigación Biodiscovery, IDIS, 27002 Lugo, Spain,Fundación
Instituto de Investigación Sanitario Santiago de Compostela
(FIDIS), Hospital Universitario Lucus Augusti, 27002 Lugo, Spain
| | - Jaime Rodríguez
- Centro
de Investigacións Científicas Avanzadas (CICA) e Departamento
de Química, Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain
| | - Mercedes R. Vieytes
- Grupo
Investigación Biodiscovery, IDIS, 27002 Lugo, Spain,Departamento
de Fisiología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - Carlos Jiménez
- Centro
de Investigacións Científicas Avanzadas (CICA) e Departamento
de Química, Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain,. Phone/Fax: +34881012170
| | - Luis M. Botana
- Departamento
de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002 Lugo, Spain,Grupo
Investigación Biodiscovery, IDIS, 27002 Lugo, Spain,. Phone/Fax: +34982822233
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3
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Yan B, Zhou M, Li J, Li X, He S, Zuo J, Sun H, Li A, Puno P. (−)‐Isoscopariusin A, a Naturally Occurring Immunosuppressive Meroditerpenoid: Structure Elucidation and Scalable Chemical Synthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bing‐Chao Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
- State Key Laboratory of Bioorganic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Min Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Xiao‐Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
| | - Shi‐Jun He
- Laboratory of Immunopharmacology State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jian‐Ping Zuo
- Laboratory of Immunopharmacology State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Han‐Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Pema‐Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
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4
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Yan B, Zhou M, Li J, Li X, He S, Zuo J, Sun H, Li A, Puno P. (−)‐Isoscopariusin A, a Naturally Occurring Immunosuppressive Meroditerpenoid: Structure Elucidation and Scalable Chemical Synthesis. Angew Chem Int Ed Engl 2021; 60:12859-12867. [PMID: 33620745 DOI: 10.1002/anie.202100288] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 01/29/2021] [Indexed: 12/17/2022]
Affiliation(s)
- Bing‐Chao Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
- State Key Laboratory of Bioorganic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Min Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Xiao‐Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
| | - Shi‐Jun He
- Laboratory of Immunopharmacology State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jian‐Ping Zuo
- Laboratory of Immunopharmacology State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Han‐Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Pema‐Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China Yunnan Key Laboratory of Natural Medicinal Chemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
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5
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Gegunde S, Alfonso A, Alvariño R, Alonso E, Botana LM. Cyclophilins A, B, and C Role in Human T Lymphocytes Upon Inflammatory Conditions. Front Immunol 2021; 12:609196. [PMID: 33859635 PMCID: PMC8042163 DOI: 10.3389/fimmu.2021.609196] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 03/15/2021] [Indexed: 02/01/2023] Open
Abstract
Cyclophilins (Cyps) are a group of peptidyl-prolyl cis/trans isomerases that play crucial roles in regulatory mechanisms of cellular physiology and pathology in several inflammatory conditions. Their receptor, CD147, also participates in the development and progression of the inflammatory response. Nevertheless, the main function of Cyps and their receptor are yet to be deciphered. The release of CypA and the expression of the CD147 receptor in activated T lymphocytes were already described, however, no data are available about other Cyps in these cells. Therefore, in the present work intra and extracellular CypA, B and C levels were measured followed by induced inflammatory conditions. After activation of T lymphocytes by incubation with concanavalin A, both intra and extracellular Cyps levels and the CD147 membrane receptor expression were increased leading to cell migration towards circulating CypA and CypB as chemoattractants. When CypA was modulated by natural and synthetic compounds, the inflammatory cascade was avoided including T cell migration. Our results strengthen the relationship between CypA, B, and C, their receptor, and the inflammatory process in human T lymphocytes, associating CypC with these cells for the first time.
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Affiliation(s)
- Sandra Gegunde
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.,Grupo Investigación Biodiscovery, Instituto de Investigación Sanitaria de Santiago de Compostela, Santiago de Compostela, Spain
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.,Grupo Investigación Biodiscovery, Instituto de Investigación Sanitaria de Santiago de Compostela, Santiago de Compostela, Spain
| | - Rebeca Alvariño
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.,Grupo Investigación Biodiscovery, Instituto de Investigación Sanitaria de Santiago de Compostela, Santiago de Compostela, Spain
| | - Eva Alonso
- Grupo Investigación Biodiscovery, Instituto de Investigación Sanitaria de Santiago de Compostela, Santiago de Compostela, Spain
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.,Grupo Investigación Biodiscovery, Instituto de Investigación Sanitaria de Santiago de Compostela, Santiago de Compostela, Spain
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6
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Mayer AMS, Guerrero AJ, Rodríguez AD, Taglialatela-Scafati O, Nakamura F, Fusetani N. Marine Pharmacology in 2016-2017: Marine Compounds with Antibacterial, Antidiabetic, Antifungal, Anti-Inflammatory, Antiprotozoal, Antituberculosis and Antiviral Activities; Affecting the Immune and Nervous Systems, and Other Miscellaneous Mechanisms of Action. Mar Drugs 2021; 19:49. [PMID: 33494402 PMCID: PMC7910995 DOI: 10.3390/md19020049] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 12/12/2022] Open
Abstract
The review of the 2016-2017 marine pharmacology literature was prepared in a manner similar as the 10 prior reviews of this series. Preclinical marine pharmacology research during 2016-2017 assessed 313 marine compounds with novel pharmacology reported by a growing number of investigators from 54 countries. The peer-reviewed literature reported antibacterial, antifungal, antiprotozoal, antituberculosis, and antiviral activities for 123 marine natural products, 111 marine compounds with antidiabetic and anti-inflammatory activities as well as affecting the immune and nervous system, while in contrast 79 marine compounds displayed miscellaneous mechanisms of action which upon further investigation may contribute to several pharmacological classes. Therefore, in 2016-2017, the preclinical marine natural product pharmacology pipeline generated both novel pharmacology as well as potentially new lead compounds for the growing clinical marine pharmaceutical pipeline, and thus sustained with its contributions the global research for novel and effective therapeutic strategies for multiple disease categories.
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Affiliation(s)
- Alejandro M. S. Mayer
- Department of Pharmacology, College of Graduate Studies, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA;
| | - Aimee J. Guerrero
- Department of Pharmacology, College of Graduate Studies, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA;
| | - Abimael D. Rodríguez
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce de León Avenue, San Juan, PR 00926, USA;
| | | | - Fumiaki Nakamura
- Department of Chemistry and Biochemistry, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
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7
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Avila C, Angulo-Preckler C. Bioactive Compounds from Marine Heterobranchs. Mar Drugs 2020; 18:657. [PMID: 33371188 PMCID: PMC7767343 DOI: 10.3390/md18120657] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/22/2022] Open
Abstract
The natural products of heterobranch molluscs display a huge variability both in structure and in their bioactivity. Despite the considerable lack of information, it can be observed from the recent literature that this group of animals possesses an astonishing arsenal of molecules from different origins that provide the molluscs with potent chemicals that are ecologically and pharmacologically relevant. In this review, we analyze the bioactivity of more than 450 compounds from ca. 400 species of heterobranch molluscs that are useful for the snails to protect themselves in different ways and/or that may be useful to us because of their pharmacological activities. Their ecological activities include predator avoidance, toxicity, antimicrobials, antifouling, trail-following and alarm pheromones, sunscreens and UV protection, tissue regeneration, and others. The most studied ecological activity is predation avoidance, followed by toxicity. Their pharmacological activities consist of cytotoxicity and antitumoral activity; antibiotic, antiparasitic, antiviral, and anti-inflammatory activity; and activity against neurodegenerative diseases and others. The most studied pharmacological activities are cytotoxicity and anticancer activities, followed by antibiotic activity. Overall, it can be observed that heterobranch molluscs are extremely interesting in regard to the study of marine natural products in terms of both chemical ecology and biotechnology studies, providing many leads for further detailed research in these fields in the near future.
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Affiliation(s)
- Conxita Avila
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
| | - Carlos Angulo-Preckler
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
- Norwegian College of Fishery Science, UiT The Arctic University of Norway, Hansine Hansens veg 18, 9019 Tromsø, Norway
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8
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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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9
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Gegunde S, Alfonso A, Alonso E, Alvariño R, Botana LM. Gracilin-Derivatives as Lead Compounds for Anti-inflammatory Effects. Cell Mol Neurobiol 2019; 40:603-615. [DOI: 10.1007/s10571-019-00758-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/05/2019] [Indexed: 01/23/2023]
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10
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Affiliation(s)
- Jason R Hudlicky
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University, 12415 Medical Research Building IV, Nashville, TN, USA
| | - Gary A Sulikowski
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University, 12415 Medical Research Building IV, Nashville, TN, USA.
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11
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Abbasov ME, Alvariño R, Chaheine CM, Alonso E, Sánchez JA, Conner ML, Alfonso A, Jaspars M, Botana LM, Romo D. Simplified immunosuppressive and neuroprotective agents based on gracilin A. Nat Chem 2019; 11:342-350. [PMID: 30903037 PMCID: PMC6532426 DOI: 10.1038/s41557-019-0230-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 02/07/2019] [Indexed: 02/06/2023]
Abstract
The architecture and bioactivity of natural products frequently serve as embarkation points for the exploration of biologically relevant chemical space. Total synthesis followed by derivative synthesis has historically enabled a deeper understanding of structure-activity relationships. However, synthetic strategies towards a natural product are not always guided by hypotheses regarding the structural features required for bioactivity. Here, we report an approach to natural product total synthesis that we term 'pharmacophore-directed retrosynthesis'. A hypothesized, pharmacophore of a natural product is selected as an early synthetic target and this dictates the retrosynthetic analysis. In an ideal application, sequential increases in the structural complexity of this minimal structure enable development of a structure-activity relationship profile throughout the course of the total synthesis effort. This approach enables the identification of simpler congeners retaining bioactivity at a much earlier stage of a synthetic effort, as demonstrated here for the spongiane diterpenoid, gracilin A, leading to simplified derivatives with potent neuroprotective and immunosuppressive activity.
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Affiliation(s)
- Mikail E Abbasov
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Rebeca Alvariño
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain
| | | | - Eva Alonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain
| | - Jon A Sánchez
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain
| | - Michael L Conner
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain
| | - Marcel Jaspars
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen, Scotland, UK
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain.
| | - Daniel Romo
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA.
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12
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Guillen PO, Gegunde S, Jaramillo KB, Alfonso A, Calabro K, Alonso E, Rodriguez J, Botana LM, Thomas OP. Zoanthamine Alkaloids from the Zoantharian Zoanthus cf. pulchellus and Their Effects in Neuroinflammation. Mar Drugs 2018; 16:md16070242. [PMID: 30036989 PMCID: PMC6071026 DOI: 10.3390/md16070242] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 07/15/2018] [Accepted: 07/19/2018] [Indexed: 01/26/2023] Open
Abstract
Two new zoanthamine alkaloids, namely 3-acetoxynorzoanthamine (1) and 3-acetoxyzoanthamine (2), have been isolated from the zoantharian Zoanthus cf. pulchellus collected off the coast of the Santa Elena Peninsula, Ecuador, together with three known derivatives: zoanthamine, norzoanthamine, and 3-hydroxynorzoanthamine. The chemical structures of 1 and 2 were determined by interpretation of their 1D and 2D NMR data and comparison with literature data. This is the first report of zoanthamine-type alkaloids from Zoanthus cf. pulchellus collected in the Tropical Eastern Pacific. The neuroinflammatory activity of all the isolated compounds was evaluated in microglia BV-2 cells and high inhibitory effects were observed in reactive oxygen species (ROS) and nitric oxide (NO) generation.
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Affiliation(s)
- Paul O Guillen
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL, Centro Nacional de Acuacultura e Investigaciones Marinas, Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil, Ecuador.
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Sandra Gegunde
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Karla B Jaramillo
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL, Centro Nacional de Acuacultura e Investigaciones Marinas, Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil, Ecuador.
- Zoology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Kevin Calabro
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Eva Alonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Jenny Rodriguez
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL, Centro Nacional de Acuacultura e Investigaciones Marinas, Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil, Ecuador.
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
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13
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Abstract
Covering: 2016. Previous review: Nat. Prod. Rep., 2017, 34, 235-294This review covers the literature published in 2016 for marine natural products (MNPs), with 757 citations (643 for the period January to December 2016) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1277 in 432 papers for 2016), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
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14
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Fisch KM, Hertzer C, Böhringer N, Wuisan ZG, Schillo D, Bara R, Kaligis F, Wägele H, König GM, Schäberle TF. The Potential of Indonesian Heterobranchs Found around Bunaken Island for the Production of Bioactive Compounds. Mar Drugs 2017; 15:E384. [PMID: 29215579 PMCID: PMC5742844 DOI: 10.3390/md15120384] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 01/09/2023] Open
Abstract
The species diversity of marine heterobranch sea slugs found on field trips around Bunaken Island (North Sulawesi, Indonesia) and adjacent islands of the Bunaken National Marine Park forms the basis of this review. In a survey performed in 2015, 80 species from 23 families were collected, including 17 new species. Only three of these have been investigated previously in studies from Indonesia. Combining species diversity with a former study from 2003 reveals in total 140 species from this locality. The diversity of bioactive compounds known and yet to be discovered from these organisms is summarized and related to the producer if known or suspected (might it be down the food chain, de novo synthesised from the slug or an associated bacterium). Additionally, the collection of microorganisms for the discovery of natural products of pharmacological interest from this hotspot of biodiversity that is presented here contains more than 50 species that have never been investigated before in regard to bioactive secondary metabolites. This highlights the great potential of the sea slugs and the associated microorganisms for the discovery of natural products of pharmacological interest from this hotspot of biodiversity.
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Affiliation(s)
- Katja M Fisch
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Cora Hertzer
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Nils Böhringer
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Zerlina G Wuisan
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
| | - Dorothee Schillo
- Centre of Molecular Biodiversity, Zoological Research Museum Alexander Koenig, 53113 Bonn, Germany.
| | - Robert Bara
- Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado 95115, Indonesia.
| | - Fontje Kaligis
- Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado 95115, Indonesia.
| | - Heike Wägele
- Centre of Molecular Biodiversity, Zoological Research Museum Alexander Koenig, 53113 Bonn, Germany.
| | - Gabriele M König
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
- German Center for Infection Research, Partner Site Bonn-Cologne, 53115 Bonn, Germany.
| | - Till F Schäberle
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
- Institute for Pharmaceutical Biology, Rheinische Friedrich-Wilhelms-University Bonn, 53115 Bonn, Germany.
- German Center for Infection Research, Partner Site Bonn-Cologne, 53115 Bonn, Germany.
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15
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Sánchez JA, Alfonso A, Rodriguez I, Alonso E, Cifuentes JM, Bermudez R, Rateb ME, Jaspars M, Houssen WE, Ebel R, Tabudravu J, Botana LM. Spongionella Secondary Metabolites, Promising Modulators of Immune Response through CD147 Receptor Modulation. Front Immunol 2016; 7:452. [PMID: 27822214 PMCID: PMC5075563 DOI: 10.3389/fimmu.2016.00452] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 10/11/2016] [Indexed: 12/04/2022] Open
Abstract
The modulation of the immune system can have multiple applications such as cancer treatment, and a wide type of processes involving inflammation where the potent chemotactic agent cyclophilin A (Cyp A) is implicated. The Porifera phylum, in which Spongionella is encompassed, is the main producer of marine bioactive compounds. Four secondary metabolites obtained from Spongionella (Gracilin H, A, L, and Tetrahydroaplysulphurin-1) were described to hit Cyp A and to block the release of inflammation mediators. Based on these results, some role of Spongionella compounds on other steps of the signaling pathway mediated by this chemotactic agent can be hypothesized. In the present paper, we studied the effect of these four compounds on the surface membrane CD147 receptor expression, on the extracellular levels of Cyp A and on the ability to migrate of concanavalin (Con A)-activated T lymphocytes. Similar to a well-known immunosuppressive agent cyclosporine A (CsA), Gracilin H, A, L, and tetrahydroaplysulphurin-1 were able to reduce the CD147 membrane expression and to block the release of Cyp A to the medium. Besides, by using Cyp A as chemotactic agent, T cell migration was inhibited when cells were previously incubated with Gracilin A and Gracilin L. These positive results lead us to test the in vivo effect of Gracilin H and L in a mouse ear delayed hypersensitive reaction. Thus, both compounds efficiently reduce the ear swelling as well as the inflammatory cell infiltration. These results provide more evidences for their potential therapeutic application in immune-related diseases of Spongionella compounds.
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Affiliation(s)
- Jon Andoni Sánchez
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , Lugo , Spain
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , Lugo , Spain
| | - Ines Rodriguez
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , Lugo , Spain
| | - Eva Alonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , Lugo , Spain
| | - José Manuel Cifuentes
- Departamento de Anatomía, Facultad de Veterinaria, Universidad de Santiago de Compostela , Lugo , Spain
| | - Roberto Bermudez
- Departamento de Anatomía, Facultad de Veterinaria, Universidad de Santiago de Compostela , Lugo , Spain
| | - Mostafa E Rateb
- Department of Chemistry, Marine Biodiscovery Centre, University of Aberdeen, Aberdeen, Scotland, UK; Pharmacognosy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Marcel Jaspars
- Department of Chemistry, Marine Biodiscovery Centre, University of Aberdeen , Aberdeen, Scotland , UK
| | - Wael E Houssen
- Department of Chemistry, Marine Biodiscovery Centre, University of Aberdeen, Aberdeen, Scotland, UK; Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK
| | - Rainer Ebel
- Department of Chemistry, Marine Biodiscovery Centre, University of Aberdeen , Aberdeen, Scotland , UK
| | - Jioji Tabudravu
- Department of Chemistry, Marine Biodiscovery Centre, University of Aberdeen , Aberdeen, Scotland , UK
| | - Luís M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , Lugo , Spain
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