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Nuzzo G, Manzo E, Gallo C, d'Ippolito G, Fontana A. Fractionation Protocol of Marine Metabolites. Methods Mol Biol 2022; 2498:307-313. [PMID: 35727552 DOI: 10.1007/978-1-0716-2313-8_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Marine organisms are well known for their capability to produce chemically unique and biological relevant small molecules. However, marine extracts are complex mixtures of compounds with a huge presence of salts. Thus, biological screening and chemical analysis of marine extracts pose specific technical constraints and require adequate sample preparation. We have developed an automated solid-phase extraction (SPE)-based method to desalt marine extracts and recover metabolites, adapt to be integrated in platform of high-throughput screening. The procedure uses a poly(styrene-divynylbenzene)-based support and a stepwise organic solvent elution herein described.
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Affiliation(s)
- Genoveffa Nuzzo
- National Research Council of Italy, Institute of Biomolecular Chemistry, Pozzuoli, Naples, Italy.
| | - Emiliano Manzo
- National Research Council of Italy, Institute of Biomolecular Chemistry, Pozzuoli, Naples, Italy
| | - Carmela Gallo
- National Research Council of Italy, Institute of Biomolecular Chemistry, Pozzuoli, Naples, Italy
| | - Giuliana d'Ippolito
- National Research Council of Italy, Institute of Biomolecular Chemistry, Pozzuoli, Naples, Italy
| | - Angelo Fontana
- National Research Council of Italy, Institute of Biomolecular Chemistry, Pozzuoli, Naples, Italy
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2
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Probing the Therapeutic Potential of Marine Phyla by SPE Extraction. Mar Drugs 2021; 19:md19110640. [PMID: 34822511 PMCID: PMC8625500 DOI: 10.3390/md19110640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/02/2021] [Accepted: 11/12/2021] [Indexed: 12/16/2022] Open
Abstract
The marine environment is potentially a prolific source of small molecules with significant biological activities. In recent years, the development of new chromatographic phases and the progress in cell and molecular techniques have facilitated the search for marine natural products (MNPs) as novel pharmacophores and enhanced the success rate in the selection of new potential drug candidates. However, most of this exploration has so far been driven by anticancer research and has been limited to a reduced number of taxonomic groups. In this article, we report a test study on the screening potential of an in-house library of natural small molecules composed of 285 samples derived from 57 marine organisms that were chosen from among the major eukaryotic phyla so far represented in studies on bioactive MNPs. Both the extracts and SPE fractions of these organisms were simultaneously submitted to three different bioassays—two phenotypic and one enzymatic—for cytotoxic, antidiabetic, and antibacterial activity. On the whole, the screening of the MNP library selected 11 potential hits, but the distribution of the biological results showed that SPE fractionation increased the positive score regardless of the taxonomic group. In many cases, activity could be detected only in the enriched fractions after the elimination of the bulky effect due to salts. On a statistical basis, sponges and molluscs were confirmed to be the most significant source of cytotoxic and antimicrobial products, but other phyla were found to be effective with the other therapeutic targets.
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Berlinck RGS, Crnkovic CM, Gubiani JR, Bernardi DI, Ióca LP, Quintana-Bulla JI. The isolation of water-soluble natural products - challenges, strategies and perspectives. Nat Prod Rep 2021; 39:596-669. [PMID: 34647117 DOI: 10.1039/d1np00037c] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Covering period: up to 2019Water-soluble natural products constitute a relevant group of secondary metabolites notably known for presenting potent biological activities. Examples are aminoglycosides, β-lactam antibiotics, saponins of both terrestrial and marine origin, and marine toxins. Although extensively investigated in the past, particularly during the golden age of antibiotics, hydrophilic fractions have been less scrutinized during the last few decades. This review addresses the possible reasons on why water-soluble metabolites are now under investigated and describes approaches and strategies for the isolation of these natural compounds. It presents examples of several classes of hydrosoluble natural products and how they have been isolated. Novel stationary phases and chromatography techniques are also reviewed, providing a perspective towards a renaissance in the investigation of water-soluble natural products.
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Affiliation(s)
- Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Camila M Crnkovic
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, CEP 05508-000, São Paulo, SP, Brazil
| | - Juliana R Gubiani
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Darlon I Bernardi
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Laura P Ióca
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Jairo I Quintana-Bulla
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
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Topsentinol L Trisulfate, a Marine Natural Product That Targets Basal-like and Claudin-Low Breast Cancers. Mar Drugs 2021; 19:md19010041. [PMID: 33477536 PMCID: PMC7831112 DOI: 10.3390/md19010041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 12/22/2022] Open
Abstract
Patients diagnosed with basal-like breast cancer suffer from poor prognosis and limited treatment options. There is an urgent need to identify new targets that can benefit patients with basal-like and claudin-low (BL-CL) breast cancers. We screened fractions from our Marine Invertebrate Compound Library (MICL) to identify compounds that specifically target BL-CL breast cancers. We identified a previously unreported trisulfated sterol, i.e., topsentinol L trisulfate (TLT), which exhibited increased efficacy against BL-CL breast cancers relative to luminal/HER2+ breast cancer. Biochemical investigation of the effects of TLT on BL-CL cell lines revealed its ability to inhibit activation of AMP-activated protein kinase (AMPK) and checkpoint kinase 1 (CHK1) and to promote activation of p38. The importance of targeting AMPK and CHK1 in BL-CL cell lines was validated by treating a panel of breast cancer cell lines with known small molecule inhibitors of AMPK (dorsomorphin) and CHK1 (Ly2603618) and recording the increased effectiveness against BL-CL breast cancers as compared with luminal/HER2+ breast cancer. Finally, we generated a drug response gene-expression signature and projected it against a human tumor panel of 12 different cancer types to identify other cancer types sensitive to the compound. The TLT sensitivity gene-expression signature identified breast and bladder cancer as the most sensitive to TLT, while glioblastoma multiforme was the least sensitive.
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Herath HMPD, Taki AC, Sleebs BE, Hofmann A, Nguyen N, Preston S, Davis RA, Jabbar A, Gasser RB. Advances in the discovery and development of anthelmintics by harnessing natural product scaffolds. ADVANCES IN PARASITOLOGY 2021; 111:203-251. [PMID: 33482975 DOI: 10.1016/bs.apar.2020.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Widespread resistance to currently-used anthelmintics represents a major obstacle to controlling parasitic nematodes of livestock animals. Given the reliance on anthelmintics in many control regimens, there is a need for the continued discovery and development of new nematocides. Enabling such a focus are: (i) the major chemical diversity of natural products; (ii) the availability of curated, drug-like extract-, fraction- and/or compound-libraries from natural sources; (iii) the utility and practicality of well-established whole-worm bioassays for Haemonchus contortus-an important parasitic nematodes of livestock-to screen natural product libraries; and (iv) the availability of advanced chromatographic (HPLC), spectroscopic (NMR) and spectrometric (MS) techniques for bioassay-guided fractionation and structural elucidation. This context provides a sound basis for the identification and characterisation of anthelmintic candidates from natural sources. This chapter provides a background on the importance and impact of helminth infections/diseases, parasite control and aspects of drug discovery, and reviews recent work focused on (i) screening well-defined compound libraries to establish the methods needed for large-scale screening of natural extract libraries; (ii) discovering plant and marine extracts with nematocidal or nematostatic activity, and purifying bioactive compounds and assessing their potential for further development; and (iii) synthesising analogues of selected purified natural compounds for the identification of possible 'lead' candidates. The chapter describes some lessons learned from this work and proposes future areas of focus for drug discovery. Collectively, the findings from this recent work show potential for selected natural product scaffolds as candidates for future development. Developing such candidates via future chemical optimisation, efficacy and safety evaluations, broad spectrum activity assessments, and target identification represents an exciting prospect and, if successful, could pave the way to subsequent pre-clinical and clinical evaluations.
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Affiliation(s)
- H M P Dilrukshi Herath
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Aya C Taki
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Brad E Sleebs
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Andreas Hofmann
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia; Griffith Institute for Drug Discovery, Griffith University, Brisbane, Queensland, Australia
| | - Nghi Nguyen
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Sarah Preston
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia; Faculty of Science and Technology, Federation University, Ballarat, Victoria, Australia
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Queensland, Australia
| | - Abdul Jabbar
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Robin B Gasser
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
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Rani A, Kavianinia I, De Leon-Rodriguez LM, McGillivray DJ, Williams DE, Brimble MA. Nanoribbon self-assembly and hydrogel formation from an NOctanoyl octapeptide derived from the antiparallel β-Interface of a protein homotetramer. Acta Biomater 2020; 114:233-243. [PMID: 32682054 DOI: 10.1016/j.actbio.2020.07.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 12/26/2022]
Abstract
The effect of installing different lipid chains (C6, C8, C10, and C16) on the N-terminus of an octapeptide derived from the antiparallel β-interface of the diaminopimelate decarboxylase protein homotetramer has been investigated. Notably, the C8 peptide conjugate assembled into wide twisted nanoribbons and formed hydrogels, which to the best of our knowledge constitutes the first example of a peptide containing an eight carbon alkyl chain that demonstrates these properties, a space typically occupied by peptide amphiphiles with long lipid chains. Furthermore, this self-assembling lipopeptide exhibited pH and temperature stability with shear thinning properties suitable for biomedical applications. Importantly, in this work the application of the polystyrene-based sorbent Diaion™ HP20SS for the simple large-scale purification of self-assembling peptides is presented as an alternative to the use of time-consuming and labor-intensive reverse-phase high-performance liquid chromatography. STATEMENT OF SIGNIFICANCE: Peptides that can self-assemble into defined nanostructures are highly attractive for many biomedical applications given their unique physical and chemical properties. It is recognized that self-assembling peptides derived from naturally occurring proteins offer an unlimited source of functionalities and structures, which are hard to uncover with designed sequences. In this study, we have investigated the effect of installing different lipids chains on the N-terminus of an octapeptide derived from the antiparallel β-interface of the diaminopimelate decarboxylase protein homo tetramer. We also reported the use of polymeric DiaionⓇ HP20SS beads as an alternative solid support to purify self-assembling peptides.
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Affiliation(s)
- Aakanksha Rani
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand; School of Biological Sciences, The University of Auckland, 3A Symonds St., Auckland 1010, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Iman Kavianinia
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand; School of Biological Sciences, The University of Auckland, 3A Symonds St., Auckland 1010, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3A Symonds St., Auckland 1010, New Zealand
| | - Luis M De Leon-Rodriguez
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
| | - Duncan J McGillivray
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand; School of Biological Sciences, The University of Auckland, 3A Symonds St., Auckland 1010, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - David E Williams
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand; School of Biological Sciences, The University of Auckland, 3A Symonds St., Auckland 1010, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand; School of Biological Sciences, The University of Auckland, 3A Symonds St., Auckland 1010, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3A Symonds St., Auckland 1010, New Zealand.
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Vlaminck L, Sang-Aram C, Botterman D, Uy CJC, Harper MK, Inzé D, Gheysen G, Depuydt S. Development of a novel and rapid phenotype-based screening method to assess rice seedling growth. PLANT METHODS 2020; 16:139. [PMID: 33072175 PMCID: PMC7560306 DOI: 10.1186/s13007-020-00682-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 10/07/2020] [Indexed: 05/13/2023]
Abstract
BACKGROUND Rice (Oryza sativa) is one of the most important model crops in plant research. Despite its considerable advantages, (phenotypic) bioassays for rice are not as well developed as for Arabidopsis thaliana. Here, we present a phenotype-based screening method to study shoot-related parameters of rice seedlings via an automated computer analysis. RESULTS The phenotype-based screening method was validated by testing several compounds in pharmacological experiments that interfered with hormone homeostasis, confirming that the assay was consistent with regard to the anticipated plant growth regulation and revealing the robustness of the set-up in terms of reproducibility. Moreover, abiotic stress tests using NaCl and DCMU, an electron transport blocker during the light dependent reactions of photosynthesis, confirmed the validity of the new method for a wide range of applications. Next, this method was used to screen the impact of semi-purified fractions of marine invertebrates on the initial stages of rice seedling growth. Certain fractions clearly stimulated growth, whereas others inhibited it, especially in the root, illustrating the possible applications of this novel, robust, and fast phenotype-based screening method for rice. CONCLUSIONS The validated phenotype-based and cost-efficient screening method allows a quick and proper analysis of shoot growth and requires only small volumes of compounds and media. As a result, this method could potentially be used for a whole range of applications, ranging from discovery of novel biostimulants, plant growth regulators, and plant growth-promoting bacteria to analysis of CRISPR knockouts, molecular plant breeding, genome-wide association, and phytotoxicity studies. The assay system described here can contribute to a better understanding of plant development in general.
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Affiliation(s)
- Lena Vlaminck
- Present Address: Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
- Laboratory of Plant Growth Analysis, Ghent University Global Campus, Incheon, 21985 South Korea
| | - Chananchida Sang-Aram
- Present Address: Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- Laboratory of Plant Growth Analysis, Ghent University Global Campus, Incheon, 21985 South Korea
| | - Deborah Botterman
- Laboratory of Plant Growth Analysis, Ghent University Global Campus, Incheon, 21985 South Korea
| | - Christine Jewel C. Uy
- Laboratory of Plant Growth Analysis, Ghent University Global Campus, Incheon, 21985 South Korea
| | - Mary Kay Harper
- Department of Medical Chemistry, University of Utah, Salt Lake City, UT 84112 USA
| | - Dirk Inzé
- Present Address: Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
| | | | - Stephen Depuydt
- Present Address: Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
- Laboratory of Plant Growth Analysis, Ghent University Global Campus, Incheon, 21985 South Korea
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Abstract
Many natural products have been used as drugs for the treatment of diverse indications. Although most U.S. pharmaceutical companies have reduced or eliminated their in-house natural-product research over the years, new approaches for compound screening and chemical synthesis are resurrecting interest in exploring the therapeutic value of natural products. The aim of this commentary is to review emerging strategies and techniques that have made natural products a viable strategic choice for inclusion in drug discovery programs. Published 2019. U.S. Government.
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Affiliation(s)
- John A Beutler
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
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Steinberger J, Robert F, Hallé M, Williams DE, Cencic R, Sawhney N, Pelletier D, Williams P, Igarashi Y, Porco JA, Rodriguez AD, Kopp B, Bachmann B, Andersen RJ, Pelletier J. Tracing MYC Expression for Small Molecule Discovery. Cell Chem Biol 2019; 26:699-710.e6. [PMID: 30880156 DOI: 10.1016/j.chembiol.2019.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/19/2018] [Accepted: 02/07/2019] [Indexed: 12/16/2022]
Abstract
Our inability to effectively "drug" targets such as MYC for therapeutic purposes requires the development of new approaches. We report on the implementation of a phenotype-based assay for monitoring MYC expression in multiple myeloma cells. The open reading frame (ORF) encoding an unstable variant of GFP was engineered immediately downstream of the MYC ORF using CRISPR/Cas9, resulting in co-expression of both proteins from the endogenous MYC locus. Using fluorescence readout as a surrogate for MYC expression, we implemented a pilot screen in which ∼10,000 compounds were prosecuted. Among known MYC expression inhibitors, we identified cardiac glycosides and cytoskeletal disruptors to be quite potent. We demonstrate the power of CRISPR/Cas9 engineering in establishing phenotype-based assays to identify gene expression modulators.
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Affiliation(s)
- Jutta Steinberger
- Department of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Francis Robert
- Department of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Maxime Hallé
- Department of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - David E Williams
- Departments of Chemistry and Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Regina Cencic
- Department of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Neha Sawhney
- Vanderbilt Institute of Chemical Biology, Department of Chemistry, Vanderbilt University, Nashville, 37235, USA
| | - Dylan Pelletier
- Department of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Philip Williams
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Yasuhiro Igarashi
- Biotechnology Research Center, Toyama Prefectural University, Toyama 939-0398, Japan
| | - John A Porco
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
| | - Abimael D Rodriguez
- Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, USA
| | - Brigitte Kopp
- Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Brian Bachmann
- Vanderbilt Institute of Chemical Biology, Department of Chemistry, Vanderbilt University, Nashville, 37235, USA
| | - Raymond J Andersen
- Departments of Chemistry and Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Jerry Pelletier
- Department of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada; The Rosalind and Morris Goodman Cancer Research Center and the Department of Oncology, McGill University, Montreal, QC, Canada.
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Kremb S, Müller C, Schmitt-Kopplin P, Voolstra CR. Bioactive Potential of Marine Macroalgae from the Central Red Sea (Saudi Arabia) Assessed by High-Throughput Imaging-Based Phenotypic Profiling. Mar Drugs 2017; 15:md15030080. [PMID: 28335513 PMCID: PMC5367037 DOI: 10.3390/md15030080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/15/2017] [Accepted: 03/16/2017] [Indexed: 12/13/2022] Open
Abstract
Marine algae represent an important source of novel natural products. While their bioactive potential has been studied to some extent, limited information is available on marine algae from the Red Sea. This study aimed at the broad discovery of new bioactivities from a collection of twelve macroalgal species from the Central Red Sea. We used imaging-based High-Content Screening (HCS) with a diverse spectrum of cellular markers for detailed cytological profiling of fractionated algal extracts. The cytological profiles for 3 out of 60 algal fractions clustered closely to reference inhibitors and showed strong inhibitory activities on the HIV-1 reverse transcriptase in a single-enzyme biochemical assay, validating the suggested biological target. Subsequent chemical profiling of the active fractions of two brown algal species by ultra-high resolution mass spectrometry (FT-ICR-MS) revealed possible candidate molecules. A database query of these molecules led us to groups of compounds with structural similarities, which are suggested to be responsible for the observed activity. Our work demonstrates the versatility and power of cytological profiling for the bioprospecting of unknown biological resources and highlights Red Sea algae as a source of bioactives that may serve as a starting point for further studies.
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Affiliation(s)
- Stephan Kremb
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia.
| | - Constanze Müller
- Research Unit Analytical Biogeochemistry, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, D-85764 Neuherberg, Germany.
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical Biogeochemistry, Helmholtz Zentrum München, Ingolstaedter Landstrasse 1, D-85764 Neuherberg, Germany.
- Chair of Analytical Food Chemistry, Technische Universität München (TUM), 85354 Freising-Weihenstephan, Germany.
| | - Christian R Voolstra
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia.
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Sondergaard TE, Fredborg M, Oppenhagen Christensen AM, Damsgaard SK, Kramer NF, Giese H, Sørensen JL. Fast Screening of Antibacterial Compounds from Fusaria. Toxins (Basel) 2016; 8:E355. [PMID: 27916854 PMCID: PMC5198549 DOI: 10.3390/toxins8120355] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 11/23/2016] [Accepted: 11/25/2016] [Indexed: 11/16/2022] Open
Abstract
Bio-guided screening is an important method to identify bioactive compounds from fungi. In this study we applied a fast digital time-lapse microscopic method for assessment of the antibacterial properties of secondary metabolites from the fungal genus Fusarium. Here antibacterial effects could be detected for antibiotic Y, aurofusarin, beauvericin, enniatins and fusaric acid after six hours of cultivation. The system was then used in a bio-guided screen of extracts from 14 different Fusarium species, which had been fractionated by HPLC. In this screen, fractions containing the red pigments aurofusarin and bikaverin showed effects against strains of Lactobacillus and Bifidobacterium. The IC50 for aurofusarin against Lactobacillus acidophilus was 8 µM, and against Bifidobacterium breve it was 64 µM. Aurofusarin only showed an effect on probiotic bacteria, leading to the speculation that only health-promoting bacteria with a positive effect in the gut system are affected.
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Affiliation(s)
- Teis Esben Sondergaard
- Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, DK-9220 Aalborg Ø, Denmark.
| | - Marlene Fredborg
- Department of Animal Science, Faculty of Science and Technology, Aarhus University, Blichers Allé 20, DK-8830 Tjele, Denmark.
| | | | - Sofie K Damsgaard
- Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, DK-9220 Aalborg Ø, Denmark.
| | - Nikoline F Kramer
- Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, DK-9220 Aalborg Ø, Denmark.
| | - Henriette Giese
- Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, DK-9220 Aalborg Ø, Denmark.
| | - Jens Laurids Sørensen
- Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, DK-9220 Aalborg Ø, Denmark.
- Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8, 6700 Esbjerg, Denmark.
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12
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Cutignano A, Nuzzo G, Ianora A, Luongo E, Romano G, Gallo C, Sansone C, Aprea S, Mancini F, D'Oro U, Fontana A. Development and Application of a Novel SPE-Method for Bioassay-Guided Fractionation of Marine Extracts. Mar Drugs 2015; 13:5736-49. [PMID: 26378547 PMCID: PMC4584351 DOI: 10.3390/md13095736] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/15/2015] [Accepted: 08/28/2015] [Indexed: 12/13/2022] Open
Abstract
The biological diversity of marine habitats is a unique source of chemical compounds with potential use as pharmaceuticals, cosmetics and dietary supplements. However, biological screening and chemical analysis of marine extracts pose specific technical constraints and require adequate sample preparation. Here we report an improved method on Solid Phase Extraction (SPE) to fractionate organic extracts containing high concentration of salt that hampers the recovery of secondary metabolites. The procedure uses a water suspension to load the extracts on a poly(styrene-divynylbenzene)-based support and a stepwise organic solvent elution to effectively desalt and fractionate the organic components. The novel protocol has been tested on MeOH-soluble material from three model organisms (Reniera sarai, Dendrilla membranosa and Amphidinium carterae) and was validated on a small panel of 47 marine samples, including sponges and protists, within discovery programs for identification of immuno-stimulatory and anti-infective natural products.
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Affiliation(s)
- Adele Cutignano
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy.
| | - Genoveffa Nuzzo
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy.
| | - Adrianna Ianora
- Marine Biotechnology Laboratory, Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Elvira Luongo
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy.
| | - Giovanna Romano
- Marine Biotechnology Laboratory, Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Carmela Gallo
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy.
| | - Clementina Sansone
- Marine Biotechnology Laboratory, Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Susanna Aprea
- GSK Vaccines s.r.l., via Fiorentina 1, Siena 53100, Italy.
| | | | - Ugo D'Oro
- GSK Vaccines s.r.l., via Fiorentina 1, Siena 53100, Italy. ugo.x.d'
| | - Angelo Fontana
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy.
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13
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Thorson MK, Van Wagoner RM, Harper MK, Ireland CM, Majtan T, Kraus JP, Barrios AM. Marine natural products as inhibitors of cystathionine beta-synthase activity. Bioorg Med Chem Lett 2015; 25:1064-6. [PMID: 25666819 DOI: 10.1016/j.bmcl.2015.01.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 01/05/2015] [Accepted: 01/07/2015] [Indexed: 10/24/2022]
Abstract
A library consisting of characterized marine natural products as well as synthetic derivatives was screened for compounds capable of inhibiting the production of hydrogen sulfide (H2S) by cystathionine beta-synthase (CBS). Eight hits were validated and shown to inhibit CBS activity with IC50 values ranging from 83 to 187μM. The majority of hits came from a series of synthetic polyandrocarpamine derivatives. In addition, a modified fluorogenic probe for H2S detection with improved solubility in aqueous solutions is reported.
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Affiliation(s)
- Megan K Thorson
- Department of Medicinal Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA
| | - Ryan M Van Wagoner
- Department of Medicinal Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA
| | - Mary Kay Harper
- Department of Medicinal Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA
| | - Chris M Ireland
- Department of Medicinal Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA
| | - Tomas Majtan
- Department of Pediatrics, University of Colorado, Aurora, CO 80045, USA
| | - Jan P Kraus
- Department of Pediatrics, University of Colorado, Aurora, CO 80045, USA
| | - Amy M Barrios
- Department of Medicinal Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA.
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14
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Jadulco R, Koch M, Kakule T, Schmidt EW, Orendt A, He H, Janso JE, Carter GT, Larson EC, Pond C, Matainaho T, Barrows LR. Isolation of pyrrolocins A-C: cis- and trans-decalin tetramic acid antibiotics from an endophytic fungal-derived pathway. JOURNAL OF NATURAL PRODUCTS 2014; 77:2537-2544. [PMID: 25351193 PMCID: PMC4251065 DOI: 10.1021/np500617u] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Indexed: 06/04/2023]
Abstract
Three new decalin-type tetramic acid analogues, pyrrolocins A (1), B (2), and C (3), were defined as products of a metabolic pathway from a fern endophyte, NRRL 50135, from Papua New Guinea. NRRL 50135 initially produced 1 but ceased its production before chemical or biological evaluation could be completed. Upon transfer of the biosynthetic pathway to a model host, 1-3 were produced. All three compounds are structurally related to equisetin-type compounds, with 1 and 3 having a trans-decalin ring system, while 2 has a cis-fused decalin. All were active against Mycobacterium tuberculosis, with the trans-decalin analogues 1 and 3 exhibiting lower MICs than the cis-decalin analogue 2. Here we report the isolation, structure elucidation, and antimycobacterial activities of 1-3 from the recombinant expression as well as the isolation of 1 from the wild-type fungus NRRL 50135.
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Affiliation(s)
- Raquel
C. Jadulco
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
| | - Michael Koch
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
| | - Thomas
B. Kakule
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
| | - Eric W. Schmidt
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
| | - Anita Orendt
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
| | - Haiyin He
- Natural
Products − Worldwide Medicinal Chemistry, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jeffrey E. Janso
- Natural
Products − Worldwide Medicinal Chemistry, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Guy T. Carter
- Carter-Bernan
Consulting, 350 Phillips
Hill Road, New City, New
York 10956, United
States
| | - Erica C. Larson
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
| | - Christopher Pond
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
| | - Teatulohi
K. Matainaho
- School
of Medicine and Health Sciences, University
of Papua New Guinea, Boroko, NCD, Papua New Guinea
| | - Louis R. Barrows
- Department of Pharmacology and
Toxicology, Department of Medicinal Chemistry, and Center for High
Performance Computing, University of Utah, Salt Lake City, Utah United States
- School
of Medicine and Health Sciences, University
of Papua New Guinea, Boroko, NCD, Papua New Guinea
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15
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Larson EC, Hathaway LB, Lamb JG, Pond CD, Rai PP, Matainaho TK, Piskaut P, Barrows LR, Franklin MR. Interactions of Papua New Guinea medicinal plant extracts with antiretroviral therapy. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:1433-40. [PMID: 25138353 PMCID: PMC4247785 DOI: 10.1016/j.jep.2014.07.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/19/2014] [Accepted: 07/10/2014] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE A substantial proportion of the population in Papua New Guinea (PNG) lives with human immunodeficiency virus (HIV). Treatment requires lifelong use of antiretroviral therapy (ART). The majority of people in PNG use traditional medicines (TM) derived from plants for all types of health promotions. Consequently, there is a concern that herb-drug interactions may impact the efficacy of ART. Herb-drug, or drug-drug, interactions occur at the level of metabolism through two major mechanisms: enzyme induction or enzyme inhibition. In this study, extracts of commonly-used medicinal plants from PNG were screened for herb-drug interactions related to cytochrome P450s (CYPs). MATERIALS AND METHODS Sixty nine methanol extracts of TM plants were screened for their ability to induce CYPs by human aryl hydrocarbon receptor- (hAhR-) and human pregnane X receptor- (hPXR-) dependent mechanisms, utilizing a commercially available cell-based luciferase reporter system. Inhibition of three major CYPs, CYP1A2, CYP3A4, and CYP2D6, was determined using human liver microsomes and enzyme-selective model substrates. RESULTS Almost one third of the TM plant extracts induced the hAhR-dependent expression of CYP1A2, the hPXR-dependent expression of CYP3A4, or both. Almost two thirds inhibited CYP1A2, CYP3A4, or CYP2D6, or combinations thereof. Many plant extracts exhibited both induction and inhibition properties. CONCLUSIONS We demonstrated that the potent and selective ability of extracts from PNG medicinal plants to affect drug metabolizing enzymes through induction and/or inhibition is a common phenomenon. Use of traditional medicines concomitantly with ART could dramatically alter the concentrations of antiretroviral drugs in the body; and their efficacy. PNG healthcare providers should counsel HIV patients because of this consequence.
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Affiliation(s)
- Erica C Larson
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, Utah 84112, USA.
| | - Laura B Hathaway
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, Utah 84112, USA.
| | - John G Lamb
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, Utah 84112, USA.
| | - Chris D Pond
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, Utah 84112, USA.
| | - Prem P Rai
- School of Medicine and Health Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Papua New Guinea.
| | - Teatulohi K Matainaho
- School of Medicine and Health Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Papua New Guinea; School of Natural and Physical Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Papua New Guinea.
| | - Pius Piskaut
- School of Natural and Physical Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Papua New Guinea.
| | - Louis R Barrows
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, Utah 84112, USA; School of Medicine and Health Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Papua New Guinea; School of Natural and Physical Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Papua New Guinea.
| | - Michael R Franklin
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, Utah 84112, USA.
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16
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Bouslimani A, Sanchez LM, Garg N, Dorrestein PC. Mass spectrometry of natural products: current, emerging and future technologies. Nat Prod Rep 2014; 31:718-29. [PMID: 24801551 PMCID: PMC4161218 DOI: 10.1039/c4np00044g] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Although mass spectrometry is a century old technology, we are entering into an exciting time for the analysis of molecular information directly from complex biological systems. In this Highlight, we feature emerging mass spectrometric methods and tools used by the natural product community and give a perspective of future directions where the mass spectrometry field is migrating towards over the next decade.
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Affiliation(s)
- Amina Bouslimani
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California 92093, United States
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17
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Jadulco RC, Pond CD, Van Wagoner RM, Koch M, Gideon OG, Matainaho TK, Piskaut P, Barrows LR. 4-Quinolone alkaloids from Melochia odorata. JOURNAL OF NATURAL PRODUCTS 2014; 77:183-187. [PMID: 24392742 PMCID: PMC3931125 DOI: 10.1021/np400847t] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The methanol extract of Melochia odorata yielded three 4-quinolone alkaloids including waltherione A (1) and two new alkaloids, waltherione C (2) and waltherione D (3). Waltheriones A and C showed significant activities in an in vitro anti-HIV cytoprotection assay at concentrations of 56.2 and 0.84 μM and inhibition of HIV P24 formation of more than 50% at 1.7 and 0.95 μM, respectively. The structures of the alkaloids were established by spectroscopic data interpretation.
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Affiliation(s)
- Raquel C. Jadulco
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, USA
| | - Christopher D. Pond
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, USA
| | - Ryan M. Van Wagoner
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah, USA
| | - Michael Koch
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, USA
| | - Osia G. Gideon
- School of Natural and Physical Sciences, University of Papua New Guinea, Boroko, NCD, Papua New Guinea
| | - Teatulohi K. Matainaho
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, USA
- School of Medicine and Health Sciences, University of Papua New Guinea, Boroko, NCD, Papua New Guinea
| | - Pius Piskaut
- School of Natural and Physical Sciences, University of Papua New Guinea, Boroko, NCD, Papua New Guinea
| | - Louis R. Barrows
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah, USA
- School of Medicine and Health Sciences, University of Papua New Guinea, Boroko, NCD, Papua New Guinea
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18
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Pevzner Y, N. Santiago D, L. von Salm J, S. Metcalf R, G. Daniel K, Calcul L, Lee Woodcock H, J. Baker B, C. Guida W, H. Brooks W. Virtual target screening to rapidly identify potential protein targets of natural products in drug discovery. AIMS MOLECULAR SCIENCE 2014. [DOI: 10.3934/molsci.2014.2.81] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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19
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Zhang H, Luo LP, Song HP, Hao HP, Zhou P, Qi LW, Li P, Chen J. A high-resolution peak fractionation approach for streamlined screening of nuclear-factor-E2-related factor-2 activators in Salvia miltiorrhiza. J Chromatogr A 2014; 1326:47-55. [DOI: 10.1016/j.chroma.2013.12.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 11/20/2013] [Accepted: 12/14/2013] [Indexed: 10/25/2022]
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20
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Futamura Y, Kawatani M, Muroi M, Aono H, Nogawa T, Osada H. Identification of a Molecular Target of a Novel Fungal Metabolite, Pyrrolizilactone, by Phenotypic Profiling Systems. Chembiochem 2013; 14:2456-63. [DOI: 10.1002/cbic.201300499] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Indexed: 11/11/2022]
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21
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Henrich CJ, Beutler JA. Matching the power of high throughput screening to the chemical diversity of natural products. Nat Prod Rep 2013; 30:1284-98. [PMID: 23925671 PMCID: PMC3801163 DOI: 10.1039/c3np70052f] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Covering up to 2013. Application of high throughput screening technologies to natural product samples demands alterations in assay design as well as sample preparation in order to yield meaningful hit structures at the end of the campaign.
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Affiliation(s)
- Curtis J. Henrich
- Basic Science Program, SAIC-Frederick, Inc. Frederick National Lab
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702 USA
| | - John A. Beutler
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702 USA
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22
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Datta S, Zhou YD, Nagle DG. Comparative study of chromatographic medium-associated mass and potential antitumor activity loss with bioactive extracts. JOURNAL OF NATURAL PRODUCTS 2013; 76:642-7. [PMID: 23441686 PMCID: PMC3683388 DOI: 10.1021/np300858c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Natural product drug discovery programs often rely on the use of silica (Si) gel, reversed-phase media, or size-exclusion resins (e.g., RP-C18, Sephadex LH-20) for compound purification. The synthetic polymer-based sorbent Diaion HP20SS (cross-linked polystyrene matrix) is used as an alternative to prepare purified natural product libraries. To evaluate the impact of chromatographic media on the isolation of biologically active, yet chromatographically unstable natural products, Diaion HP20SS was evaluated side-by-side with normal-phase sorbents for irreversible binding of extract constituents and their effects on bioactivity. An array of chemically diverse natural product-rich extracts was selected as a test panel, and a cell-based reporter assay for hypoxia-inducible factor-1 (HIF-1) was employed to monitor potential change(s) in bioactivity. Silica gel caused significant irreversible binding of three out of 10 extracts. Curcuma longa, Saururus cernuus, and Citrus reticulata extracts showed decreased HIF-1 inhibitory activity after elution through Si gel. An additional nonpolar column wash of HP20SS with EtOAc retained considerable bioactivities of active extracts. In general, Si gel produced the greatest loss of bioactivity. However, HP20SS elution reduced significantly HIF-1 inhibitory activity of certain extracts (e.g., Asimina triloba).
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Affiliation(s)
- Sandipan Datta
- Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Yu-Dong Zhou
- Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Dale G. Nagle
- Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS 38677, United States
- Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, United States
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23
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Potterat O, Hamburger M. Concepts and technologies for tracking bioactive compounds in natural product extracts: generation of libraries, and hyphenation of analytical processes with bioassays. Nat Prod Rep 2013; 30:546-64. [DOI: 10.1039/c3np20094a] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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24
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Abstract
An automated high-throughput method applied to the production and analysis of libraries of natural -products for high-throughput biological screening is described. The production of the library includes solid-phase extraction of crude extracts to remove polyphenols, followed by automated preparative high-performance liquid chromatography (HPLC) fractionation. Libraries of fractions are analyzed by an ultra-performance liquid chromatography-UV diode-array detection-evaporative light scattering detection-mass spectrometry system (UPLC/PDA/ELSD/MS) to provide information that facilitates characterization of compounds in active fractions. This system fractionates 2,600 unique natural product samples per year, providing fractions in 0.5-10 mg scale for creation of libraries that could be used for the screening of multiple targets to identify hits for various applications including drug discovery.
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25
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Violaceols function as actin inhibitors inducing cell shape elongation in fibroblast cells. Biosci Biotechnol Biochem 2012; 76:1431-7. [PMID: 22878183 DOI: 10.1271/bbb.120074] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Violaceol-I and -II were isolated from a fractionated library of marine-derived fungal metabolites. These compounds increased the calcium ion concentration inside the cell and caused F-actin aggregation in rat fibroblast 3Y1 cells within 3 h resulting in cell shape elongation. Calcium chelator BAPTA-AM (1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid tetrakis (acetoxymethyl ester) inhibited violaceol-I and -II induced F-actin aggregation in 3Y1 cells, and hence violaceol-I and -II act in a calcium dependent manner. Violaceol-I and -II inhibited G-actin polymerization in vitro in a dose-dependent manner and strongly associated with G-actin, at dissociation equilibrium constants of 1.44 × 10(-8) M and 2.52 × 10(-9) M respectively. Here we report the identification of a novel function of violaceol-I and -II as actin inhibitors. Violaceol-I and -II induced cell shape elongation through F-actin aggregation in 3Y1 fibroblasts. These compounds may give researchers new insights into the role of actin in tumorigenesis and lead to the development of additional anti-tumor drugs.
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26
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Gerwick WH, Moore BS. Lessons from the past and charting the future of marine natural products drug discovery and chemical biology. ACTA ACUST UNITED AC 2012; 19:85-98. [PMID: 22284357 DOI: 10.1016/j.chembiol.2011.12.014] [Citation(s) in RCA: 401] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 12/20/2011] [Accepted: 12/22/2011] [Indexed: 12/31/2022]
Abstract
Marine life forms are an important source of structurally diverse and biologically active secondary metabolites, several of which have inspired the development of new classes of therapeutic agents. These success stories have had to overcome difficulties inherent to natural products-derived drugs, such as adequate sourcing of the agent and issues related to structural complexity. Nevertheless, several marine-derived agents are now approved, most as "first-in-class" drugs, with five of seven appearing in the past few years. Additionally, there is a rich pipeline of clinical and preclinical marine compounds to suggest their continued application in human medicine. Understanding of how these agents are biosynthetically assembled has accelerated in recent years, especially through interdisciplinary approaches, and innovative manipulations and re-engineering of some of these gene clusters are yielding novel agents of enhanced pharmaceutical properties compared with the natural product.
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Affiliation(s)
- William H Gerwick
- Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Science, University of California San Diego, La Jolla, CA 92037, USA.
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27
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Sorres J, Martin MT, Petek S, Levaique H, Cresteil T, Ramos S, Thoison O, Debitus C, Al-Mourabit A. Pipestelides A-C: cyclodepsipeptides from the Pacific marine sponge Pipestela candelabra. JOURNAL OF NATURAL PRODUCTS 2012; 75:759-63. [PMID: 22364566 DOI: 10.1021/np200714m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Pipestelides A-C (2-4) are three new NRPS-PKS hybrid macrolides containing uncommon moieties, isolated from the Pacific marine sponge Pipestela candelabra. Their structures were elucidated on the basis of spectroscopic data. These cyclodepsipeptides appear to be biosynthetically related to jaspamide (aka jasplakinolide) (1) by chemical modification of the building blocks of the polyketide or peptide chains. Pipestelides A-C (2-4) contain a bromotyrosine [3-amino-3-(bromo-4-hydroxyphenyl)propanoic acid] unit, a polypropionate with a Z double bond, and a 2-hydroxyquinolinone, respectively. Revised chemical shift assignments are provided for the co-isolated known jasplakinolide C(a) (5). In addition, compounds 2 and 3 exhibited cytotoxic activities in the micromolar range.
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Affiliation(s)
- Jonathan Sorres
- Centre de Recherche de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, UPR 2301, ICSN-CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
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28
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De Zoysa M. Medicinal benefits of marine invertebrates: sources for discovering natural drug candidates. ADVANCES IN FOOD AND NUTRITION RESEARCH 2012; 65:153-69. [PMID: 22361185 DOI: 10.1016/b978-0-12-416003-3.00009-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Marine invertebrates are one of the major groups of organisms, which could be diversified under the major taxonomic groups of Porifera, Cnidaria, Mollusca, Arthropoda, Echinodermata, and many other minor phyla. To date, range of medicinal benefits and a significant number of marine natural products (MNPs) have been discovered from marine invertebrates. Seafood diet from edible marine invertebrates such as mollusks and crustaceans has been linked with various medicinal benefits to improve human health. Among marine invertebrates, spongers from phylum Porifera is the most dominant group responsible for discovering large number of MNPs, which have been used as template to develop therapeutic drugs. MNPs isolated from invertebrates have shown wide range of therapeutic properties including antimicrobial, antioxidant, antihypertensive, anticoagulant, anticancer, anti-inflammatory, wound healing and immune modulator, and other medicinal effects. Therefore, marine invertebrates are rich sources of chemical diversity and health benefits for developing drug candidates, cosmetics, nutritional supplements, and molecular probes that can be supported to increase the healthy life span of human.
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Affiliation(s)
- Mahanama De Zoysa
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
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29
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Jang JH, Asami Y, Jang JP, Kim SO, Moon DO, Shin KS, Hashizume D, Muroi M, Saito T, Oh H, Kim BY, Osada H, Ahn JS. Fusarisetin A, an acinar morphogenesis inhibitor from a soil fungus, Fusarium sp. FN080326. J Am Chem Soc 2011; 133:6865-7. [PMID: 21500849 DOI: 10.1021/ja1110688] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An acinar morphogenesis inhibitor named fusarisetin A (1) that possesses both an unprecedented carbon skeleton and a new pentacyclic ring system has been identified from an in-house fractionated fungal library using a three-dimensional matrigel-induced acinar morphogenesis assay system. The structure of 1 was determined in detail by NMR and circular dichroism spectroscopy, X-ray analysis, and chemical reaction experiments.
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Affiliation(s)
- Jae-Hyuk Jang
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883, Republic of Korea
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30
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Kingston DGI. Modern natural products drug discovery and its relevance to biodiversity conservation. JOURNAL OF NATURAL PRODUCTS 2011; 74:496-511. [PMID: 21138324 PMCID: PMC3061248 DOI: 10.1021/np100550t] [Citation(s) in RCA: 297] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Natural products continue to provide a diverse and unique source of bioactive lead compounds for drug discovery, but maintaining their continued eminence as source compounds is challenging in the face of the changing face of the pharmaceutical industry and the changing nature of biodiversity prospecting brought about by the Convention on Biological Diversity. This review provides an overview of some of these challenges and suggests ways in which they can be addressed so that natural products research can remain a viable and productive route to drug discovery. Results from International Cooperative Biodiversity Groups (ICBGs) working in Madagascar, Panama, and Suriname are used as examples of what can be achieved when biodiversity conservation is linked to drug discovery.
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Affiliation(s)
- David G I Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States.
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Simultaneous Screening and Chemical Characterization of Bioactive Compounds Using LC-MS-Based Technologies (Affinity Chromatography). THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2011. [DOI: 10.1007/978-3-642-18384-3_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Månsson M, Phipps RK, Gram L, Munro MHG, Larsen TO, Nielsen KF. Explorative solid-phase extraction (E-SPE) for accelerated microbial natural product discovery, dereplication, and purification. JOURNAL OF NATURAL PRODUCTS 2010; 73:1126-1132. [PMID: 20509666 DOI: 10.1021/np100151y] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Microbial natural products (NP) cover a high chemical diversity, and in consequence extracts from microorganisms are often complex to analyze and purify. A distribution analysis of calculated pK(a) values from the 34390 records in Antibase2008 revealed that within pH 2-11, 44% of all included compounds had an acidic functionality, 17% a basic functionality, and 9% both. This showed a great potential for using ion-exchange chromatography as an integral part of the separation procedure, orthogonal to the classic reversed-phase strategy. Thus, we investigated the use of an "explorative solid-phase extraction" (E-SPE) protocol using SAX, Oasis MAX, SCX, and LH-20 columns for targeted exploitation of chemical functionalities. E-SPE provides a minimum of fractions (15) for chemical and biological analyses and implicates development into a preparative scale methodology. Overall, this allows fast extract prioritization, easier dereplication, mapping of biological activities, and formulation of a purification strategy.
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Affiliation(s)
- Maria Månsson
- Center for Microbial Biotechnology, Institute for Systems Biology, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark.
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Wei X, Bugni TS, Harper MK, Sandoval IT, Manos EJ, Swift J, Van Wagoner RM, Jones DA, Ireland CM. Evaluation of pyridoacridine alkaloids in a zebrafish phenotypic assay. Mar Drugs 2010; 8:1769-78. [PMID: 20631869 PMCID: PMC2901824 DOI: 10.3390/md8061769] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 05/20/2010] [Accepted: 05/25/2010] [Indexed: 11/16/2022] Open
Abstract
Three new minor components, the pyridoacridine alkaloids 1-hydroxy-deoxyamphimedine (1), 3-hydroxy-deoxyamphimedine (2), debromopetrosamine (3), and three known compounds, amphimedine (4), neoamphimedine (5) and deoxyamphimedine (6), have been isolated from the sponge Xestospongia cf. carbonaria, collected in Palau. Structures were assigned on the basis of extensive 1D and 2D NMR studies as well as analysis by HRESIMS. Compounds 1–6 were evaluated in a zebrafish phenotype-based assay. Amphimedine (4) was the only compound that caused a phenotype in zebrafish embryos at 30 μM. No phenotype other than death was observed for compounds 1–3, 5, 6.
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Affiliation(s)
- Xiaomei Wei
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT84112, USA; E-Mails: (X.M.W.); (M.K.H.); (R.M.V.W.)
| | - Tim S. Bugni
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT84112, USA; E-Mails: (X.M.W.); (M.K.H.); (R.M.V.W.)
| | - Mary Kay Harper
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT84112, USA; E-Mails: (X.M.W.); (M.K.H.); (R.M.V.W.)
| | - Imelda T. Sandoval
- Department of Oncological Sciences, Huntsman Cancer Institute, 2000 Circle of Hope, Salt Lake City, UT84112, USA ; E-Mails: (I.T.S.); (E.J.M.); (J.S.) ; (D.A.J.)
| | - Elizabeth J. Manos
- Department of Oncological Sciences, Huntsman Cancer Institute, 2000 Circle of Hope, Salt Lake City, UT84112, USA ; E-Mails: (I.T.S.); (E.J.M.); (J.S.) ; (D.A.J.)
| | - Jennifer Swift
- Department of Oncological Sciences, Huntsman Cancer Institute, 2000 Circle of Hope, Salt Lake City, UT84112, USA ; E-Mails: (I.T.S.); (E.J.M.); (J.S.) ; (D.A.J.)
| | - Ryan M. Van Wagoner
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT84112, USA; E-Mails: (X.M.W.); (M.K.H.); (R.M.V.W.)
| | - David A. Jones
- Department of Oncological Sciences, Huntsman Cancer Institute, 2000 Circle of Hope, Salt Lake City, UT84112, USA ; E-Mails: (I.T.S.); (E.J.M.); (J.S.) ; (D.A.J.)
| | - Chris M. Ireland
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT84112, USA; E-Mails: (X.M.W.); (M.K.H.); (R.M.V.W.)
- *Author to whom correspondence should be addressed; E-Mail: ; Tel.: +01-801-581-8305; Fax: +01-801-585-6208
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Tu Y, Jeffries C, Ruan H, Nelson C, Smithson D, Shelat AA, Brown KM, Li XC, Hester JP, Smillie T, Khan IA, Walker L, Guy K, Yan B. Automated high-throughput system to fractionate plant natural products for drug discovery. JOURNAL OF NATURAL PRODUCTS 2010; 73:751-4. [PMID: 20232897 PMCID: PMC2866159 DOI: 10.1021/np9007359] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The development of an automated, high-throughput fractionation procedure to prepare and analyze natural product libraries for drug discovery screening is described. Natural products obtained from plant materials worldwide were extracted and first prefractionated on polyamide solid-phase extraction cartridges to remove polyphenols, followed by high-throughput automated fractionation, drying, weighing, and reformatting for screening and storage. The analysis of fractions with UPLC coupled with MS, PDA, and ELSD detectors provides information that facilitates characterization of compounds in active fractions. Screening of a portion of fractions yielded multiple assay-specific hits in several high-throughput cellular screening assays. This procedure modernizes the traditional natural product fractionation paradigm by seamlessly integrating automation, informatics, and multimodal analytical interrogation capabilities.
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Affiliation(s)
- Ying Tu
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
| | - Cynthia Jeffries
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
| | - Hong Ruan
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
| | - Cynthia Nelson
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
| | - David Smithson
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
| | - Anang A. Shelat
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
| | - Kristin M. Brown
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
| | - Xing-Cong Li
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677
| | - John P. Hester
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677
| | - Troy Smillie
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677
| | - Ikhlas A. Khan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677
| | - Larry Walker
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677
| | - Kip Guy
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
- To whom correspondence should be addressed. Tel: (901)495-2797. Fax: (901)#595-5715. (B.Y.). Tel: (901)595-5714. Fax: (901)#595-5715. (K.G.)
| | - Bing Yan
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
- To whom correspondence should be addressed. Tel: (901)495-2797. Fax: (901)#595-5715. (B.Y.). Tel: (901)595-5714. Fax: (901)#595-5715. (K.G.)
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Johnson TA, Morgan MVC, Aratow NA, Estee SA, Sashidhara KV, Loveridge ST, Segraves NL, Crews P. Assessing pressurized liquid extraction for the high-throughput extraction of marine-sponge-derived natural products. JOURNAL OF NATURAL PRODUCTS 2010; 73:359-64. [PMID: 20030364 PMCID: PMC2846233 DOI: 10.1021/np900565a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In order to compare the utility of standard solvent partitioning (SSP) versus accelerated solvent extraction (ASE), a series of experiments were performed and evaluated. Overall yields, solvent consumption, processing time, and chemical stability of the fractions obtained by both methods were compared. Five marine sponges were selected for processing and analysis containing 12 structurally distinct, bioactive natural products. Extracts generated using SSP and ASE were assessed for chemical degradation using comparative LC MS-ELSD. The extraction efficiency (EE) of the ASE apparatus was 3 times greater than the SSP method on average, while the total extraction yields (TEY) were roughly equivalent. Furthermore, the ASE methodology required only 2 h to process each sample versus 80 h for SSP, and the LC MS-ELSD from extracts of both methods appeared comparable. These results demonstrate that ASE can serve as an effective high-throughput methodology for extracting marine organisms to streamline the discovery of novel and bioactive natural products.
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Affiliation(s)
| | | | | | | | | | | | | | - Phillip Crews
- To whom correspondence should be addressed. Tel.: 831-459-2603. Fax: 831-459-2935.
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Beutler JA. Natural Products as a Foundation for Drug Discovery. CURRENT PROTOCOLS IN PHARMACOLOGY 2009; 46:9.11.1-9.11.21. [PMID: 20161632 PMCID: PMC2813068 DOI: 10.1002/0471141755.ph0911s46] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Natural products have contributed to the development of many drugs for diverse indications. While most U.S. pharmaceutical companies have reduced or eliminated their in-house natural product groups, new paradigms and new enterprises have evolved to carry on a role for natural products in the pharmaceutical industry. Many of the reasons for the decline in popularity of natural products are being addressed by the development of new techniques for screening and production. This overview aims to inform pharmacologists of current strategies and techniques that make natural products a viable strategic choice for inclusion in drug discovery programs.
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Affiliation(s)
- John A Beutler
- Molecular Targets Development Program Center for Cancer Research National Cancer Institute Frederick, MD 21702 USA 301-846-1942 (ph.) 301-846-6177 (fax)
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McCulloch MWB, Bugni TS, Concepcion GP, Coombs GS, Harper MK, Kaur S, Mangalindan GC, Mutizwa MM, Veltri CA, Virshup DM, Ireland CM. Carteriosulfonic acids A-C, GSK-3beta inhibitors from a Carteriospongia sp. JOURNAL OF NATURAL PRODUCTS 2009; 72:1651-6. [PMID: 19778090 PMCID: PMC2754322 DOI: 10.1021/np900336f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Modulators of Wnt signaling have therapeutic potential in a number of human diseases. A fractionated library from marine invertebrates was screened in a luciferase assay designed to identify modulators of Wnt signaling. A fraction from a Carteriospongia sp. sponge activated Wnt signaling and was subsequently shown to inhibit GSK-3beta, which inhibits Wnt signaling through phosphorylation of beta-catenin. Three novel natural products, carteriosulfonic acids A (1), B (2), and C (3), were identified as active constituents. The carteriosulfonic acids contain unprecedented 4,6,7,9-tetrahydroxylated decanoic acid subunits. Their structures were elucidated through analysis of NMR data and a detailed analysis of pseudo MS(3) spectra.
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Affiliation(s)
| | - Tim S. Bugni
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, USA
| | - Gisela P. Concepcion
- Marine Science Institute, University of the Philippines, Diliman 1101, Quezon City, Philippines
| | | | - Mary Kay Harper
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, USA
| | - Simran Kaur
- Duke NUS Graduate Medical School, Singapore, 169547
| | - Gina C. Mangalindan
- Marine Science Institute, University of the Philippines, Diliman 1101, Quezon City, Philippines
| | | | - Charles A. Veltri
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, USA
| | | | - Chris M. Ireland
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, USA
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Barrows L, Matainaho T, Ireland C, Miller S, Carter G, Bugni T, Rai P, Gideon O, Manoka B, Piskaut P, Banka R, Kiapranis R, Noro J, Pond C, Andjelic C, Koch M, Harper M, Powan E, Pole A, Jensen J. Making the most of Papua New Guinea's biodiversity: Establishment of an integrated set of programs that link botanical survey with pharmacological assessment in "The Land of the Unexpected". PHARMACEUTICAL BIOLOGY 2009; 47:795-808. [PMID: 20016761 PMCID: PMC2794140 DOI: 10.1080/13880200902991599] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
An integrated and coordinated set of programs has been established to meet ICBG goals in Papua New Guinea (PNG). Here we give an overview of the PNG ICBG and focus on the key elements and major steps taken to establish a program necessary for the pharmacological assessment of botanicals and traditional medicines in PNG and, by extrapolation, in other developing countries.
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Affiliation(s)
- L.R. Barrows
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
- Corresponding author. Tel.: +1 801 581 4547; FAX: +1 801 585 9347.
| | - T.K. Matainaho
- School of Medicine and Health Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Port Moresby, Papua New Guinea
| | - C.M. Ireland
- Department of Medicinal Chemistry, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
| | - S. Miller
- Smithsonian Institute, 1000 Jefferson Drive, SW, Suite 230, P.O. Box 37012, MRC 009, Washington D.C., USA 20013-7012
| | - G.T. Carter
- Wyeth Research Laboratories, 401 N. Middletown Rd., Pearl River, New York, USA 10965
| | - T. Bugni
- Department of Medicinal Chemistry, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
| | - P. Rai
- School of Medicine and Health Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Port Moresby, Papua New Guinea
| | - O. Gideon
- School of Natural and Physical Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Port Moresby, Papua New Guinea
| | - B. Manoka
- School of Natural and Physical Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Port Moresby, Papua New Guinea
| | - P. Piskaut
- School of Natural and Physical Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Port Moresby, Papua New Guinea
| | - R. Banka
- Papua New Guinea Forest Research Institute, P.O. Box 314, Lae, Papua New Guinea
| | - R. Kiapranis
- Papua New Guinea Forest Research Institute, P.O. Box 314, Lae, Papua New Guinea
| | - J.N. Noro
- School of Medicine and Health Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Port Moresby, Papua New Guinea
| | - C.D. Pond
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
| | - C.D. Andjelic
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
| | - M. Koch
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
| | - M.K. Harper
- Department of Medicinal Chemistry, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
| | - E. Powan
- School of Medicine and Health Sciences, University of Papua New Guinea, P.O. Box 5623, Boroko, NCD, Port Moresby, Papua New Guinea
| | - A.R. Pole
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
| | - J.B. Jensen
- Department of Pharmacology and Toxicology, University of Utah, 30 S. 2000 E., Salt Lake City, UT, USA 84112
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Giera M, Heus F, Janssen L, Kool J, Lingeman H, Irth H. Microfractionation Revisited: A 1536 Well High Resolution Screening Assay. Anal Chem 2009; 81:5460-6. [DOI: 10.1021/ac900622b] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martin Giera
- Biomolecular Analysis group, Department of Chemistry, Faculty of Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Ferry Heus
- Biomolecular Analysis group, Department of Chemistry, Faculty of Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Laura Janssen
- Biomolecular Analysis group, Department of Chemistry, Faculty of Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Jeroen Kool
- Biomolecular Analysis group, Department of Chemistry, Faculty of Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Henk Lingeman
- Biomolecular Analysis group, Department of Chemistry, Faculty of Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Hubertus Irth
- Biomolecular Analysis group, Department of Chemistry, Faculty of Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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