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Soares JX, Afonso I, Omerbasic A, Loureiro DRP, Pinto MMM, Afonso CMM. The Chemical Space of Marine Antibacterials: Diphenyl Ethers, Benzophenones, Xanthones, and Anthraquinones. Molecules 2023; 28:molecules28104073. [PMID: 37241815 DOI: 10.3390/molecules28104073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/28/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
The emergence of multiresistant bacteria and the shortage of antibacterials in the drug pipeline creates the need to search for novel agents. Evolution drives the optimization of the structure of marine natural products to act as antibacterial agents. Polyketides are a vast and structurally diverse family of compounds that have been isolated from different marine microorganisms. Within the different polyketides, benzophenones, diphenyl ethers, anthraquinones, and xanthones have shown promising antibacterial activity. In this work, a dataset of 246 marine polyketides has been identified. In order to characterize the chemical space occupied by these marine polyketides, molecular descriptors and fingerprints were calculated. Molecular descriptors were analyzed according to the scaffold, and principal component analysis was performed to identify the relationships among the different descriptors. Generally, the identified marine polyketides are unsaturated, water-insoluble compounds. Among the different polyketides, diphenyl ethers tend to be more lipophilic and non-polar than the remaining classes. Molecular fingerprints were used to group the polyketides according to their molecular similarity into clusters. A total of 76 clusters were obtained, with a loose threshold for the Butina clustering algorithm, highlighting the large structural diversity of the marine polyketides. The large structural diversity was also evidenced by the visualization trees map assembled using the tree map (TMAP) unsupervised machine-learning method. The available antibacterial activity data were examined in terms of bacterial strains, and the activity data were used to rank the compounds according to their antibacterial potential. This potential ranking was used to identify the most promising compounds (four compounds) which can inspire the development of new structural analogs with better potency and absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties.
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Affiliation(s)
- José X Soares
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal
- LAQV-REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Inês Afonso
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Adaleta Omerbasic
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Daniela R P Loureiro
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal
- LAQV-REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Madalena M M Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal
| | - Carlos M M Afonso
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal
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Saïd Hassane C, Tintillier F, Campos PE, Herbette G, de Voogd NJ, Ouazzani J, Fouillaud M, Dufossé L, Gauvin-Bialecki A. Polybrominated diphenyl ethers isolated from the marine sponge Lendenfeldia chondrodes collected in Mayotte. Nat Prod Res 2023:1-10. [PMID: 37086477 DOI: 10.1080/14786419.2023.2204431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
Abstract
CDK7 and FynB protein kinases have been recognized as relevant targets for cancer and brain diseases treatment due to their pivotal regulatory roles in cellular functions such as cell cycle and neural signal transduction. Several studies demonstrated that the inhibition of these proteins could be useful in altering the onset or progression of these diseases. Based on bioassay-guided approach, the extract of the marine sponge Lendenfeldia chondrodes (Thorectidae), which exhibited interesting kinase inhibitory activities, was fractionated. The investigation led to the isolation of five known 1-5 and one new 6 polybrominated diphenyl ethers (PBDEs). Their structure elucidation was established based on spectroscopic data (NMR and HRMS) and comparison with literature data.
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Affiliation(s)
- Charifat Saïd Hassane
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Florent Tintillier
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Pierre-Eric Campos
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
- Institut de Chimie Organique et Analytique, Université d'Orléans - Pôle de chimie, Orléans, France
| | - Gaëtan Herbette
- Spectropole, FSCM CNRS, Centrale Marseille, Aix-Marseille University, Marseille, France
| | - Nicole J de Voogd
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | - Jamal Ouazzani
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Mireille Fouillaud
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Laurent Dufossé
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Anne Gauvin-Bialecki
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
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3
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Singh KS, Singh A. Chemical diversities, biological activities and chemical synthesis of marine diphenyl ether and their derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hanif N, Tyas TA, Hidayati L, Dinelsa FF, Provita D, Kinnary NR, Prasetiawan FM, Khalik GA, Mubarok Z, Tohir D, Setiawan A, Farid M, Kurnianda V, Murni A, de Voogd NJ, Tanaka J. Oxy-Polybrominated Diphenyl Ethers from the Indonesian Marine Sponge, Lamellodysidea herbacea: X-ray, SAR, and Computational Studies. Molecules 2021; 26:molecules26216328. [PMID: 34770740 PMCID: PMC8588277 DOI: 10.3390/molecules26216328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
Polybrominated diphenyl ether (PBDE) compounds, derived from marine organisms, originate from symbiosis between marine sponges and cyanobacteria or bacteria. PBDEs have broad biological spectra; therefore, we analyzed structure and activity relationships of PBDEs to determine their potential as anticancer or antibacterial lead structures, through reactions and computational studies. Six known PBDEs (1–6) were isolated from the sponge, Lamellodysdiea herbacea; 13C NMR data for compound 6 are reported for the first time and their assignments are confirmed by their theoretical 13C NMR chemical shifts (RMSE < 4.0 ppm). Methylation and acetylation of 1 (2, 3, 4, 5-tetrabromo-6-(3′, 5′-dibromo-2′-hydroxyphenoxy) phenol) at the phenol functional group gave seven molecules (7–13), of which 10, 12, and 13 were new. New crystal structures for 8 and 9 are also reported. Debromination carried out on 1 produced nine compounds (1, 2, 14, 16–18, 20, 23, and 26) of which 18 was new. Debromination product 16 showed a significant IC50 8.65 ± 1.11; 8.11 ± 1.43 µM against human embryonic kidney (HEK293T) cells. Compounds 1 and 16 exhibited antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Klebsiella pneumoniae with MID 0.078 µg/disk. The number of four bromine atoms and two phenol functional groups are important for antibacterial activity (S. aureus and K. pneumoniae) and cytotoxicity (HEK293T). The result was supported by analysis of frontier molecular orbitals (FMOs). We also propose possible products of acetylation and debromination using analysis of FMOs and electrostatic charges and we confirm the experimental result.
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Affiliation(s)
- Novriyandi Hanif
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
- Correspondence: ; Tel.: +62-(251)-862-4567
| | - Trianda Ayuning Tyas
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
- Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara 903-0213, Okinawa, Japan; (V.K.); (J.T.)
| | - Lestari Hidayati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Fabians Faisal Dinelsa
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Dian Provita
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Nyimas Ratna Kinnary
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Fauzi Muhamad Prasetiawan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Gibral Abdul Khalik
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Zaki Mubarok
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Dudi Tohir
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Andi Setiawan
- Department of Chemistry, Lampung University, Bandar Lampung 35145, Indonesia;
| | - Muhamad Farid
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Viqqi Kurnianda
- Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara 903-0213, Okinawa, Japan; (V.K.); (J.T.)
| | - Anggia Murni
- Tropical Biopharmaca Research Center, IPB University, Bogor 16128, Indonesia;
| | - Nicole J. de Voogd
- Institute of Environmental Sciences (CML) Leiden University, P.O. Box 9518, 2300 RA Leiden, The Netherlands;
- Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - Junichi Tanaka
- Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara 903-0213, Okinawa, Japan; (V.K.); (J.T.)
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Sakyi PO, Amewu RK, Devine RNOA, Ismaila E, Miller WA, Kwofie SK. The Search for Putative Hits in Combating Leishmaniasis: The Contributions of Natural Products Over the Last Decade. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:489-544. [PMID: 34260050 PMCID: PMC8279035 DOI: 10.1007/s13659-021-00311-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/07/2021] [Indexed: 05/12/2023]
Abstract
Despite advancements in the areas of omics and chemoinformatics, potent novel biotherapeutic molecules with new modes of actions are needed for leishmaniasis. The socioeconomic burden of leishmaniasis remains alarming in endemic regions. Currently, reports from existing endemic areas such as Nepal, Iran, Brazil, India, Sudan and Afghanistan, as well as newly affected countries such as Peru, Bolivia and Somalia indicate concerns of chemoresistance to the classical antimonial treatment. As a result, effective antileishmanial agents which are safe and affordable are urgently needed. Natural products from both flora and fauna have contributed immensely to chemotherapeutics and serve as vital sources of new chemical agents. This review focuses on a systematic cross-sectional view of all characterized anti-leishmanial compounds from natural sources over the last decade. Furthermore, IC50/EC50, cytotoxicity and suggested mechanisms of action of some of these natural products are provided. The natural product classification includes alkaloids, terpenes, terpenoids, and phenolics. The plethora of reported mechanisms involve calcium channel inhibition, immunomodulation and apoptosis. Making available enriched data pertaining to bioactivity and mechanisms of natural products complement current efforts geared towards unraveling potent leishmanicides of therapeutic relevance.
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Affiliation(s)
- Patrick O. Sakyi
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. BOX LG 56, Legon, Accra, Ghana
- Department of Chemical Sciences, School of Sciences, University of Energy and Natural Resources, Box 214, Sunyani, Ghana
| | - Richard K. Amewu
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. BOX LG 56, Legon, Accra, Ghana
| | - Robert N. O. A. Devine
- Department of Chemical Sciences, School of Sciences, University of Energy and Natural Resources, Box 214, Sunyani, Ghana
| | - Emahi Ismaila
- Department of Chemical Sciences, School of Sciences, University of Energy and Natural Resources, Box 214, Sunyani, Ghana
| | - Whelton A. Miller
- Department of Medicine, Loyola University Medical Center, Maywood, IL 60153 USA
- Department of Molecular Pharmacology and Neuroscience, Loyola University Medical Center, Maywood, IL 60153 USA
- Department of Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Samuel K. Kwofie
- Department of Biomedical Engineering, School of Engineering Sciences, College of Basic & Applied Sciences, University of Ghana, PMB LG 77, Legon, Accra, Ghana
- Department of Biochemistry, Cell and Molecular Biology, West African Centre for Cell Biology of Infectious Pathogens, College of Basic and Applied Sciences, University of Ghana, P.O. Box LG 54, Accra, Ghana
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Scalarane-Type Sesterterpenoids from the Marine Sponge Lendenfeldia sp. Alleviate Inflammation in Human Neutrophils. Mar Drugs 2021; 19:md19100561. [PMID: 34677460 PMCID: PMC8541400 DOI: 10.3390/md19100561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 11/18/2022] Open
Abstract
Sponge-derived scalaranes are remarkable sesterterpenoids previously found to exhibit profound inhibitory effects against neutrophilic inflammation. In our current work, we constructed the metabolomic profile of marine sponge Lendenfeldia sp. for the first time using a tandem mass spectrometry (MS/MS) molecular networking approach. The results highlighted the rich chemical diversity of these scalaranes, motivating us to conduct further research to discover novel scalaranes targeting neutrophilic inflammation. MS- and NMR-assisted isolation and elucidation led to the discovery of seven new homoscalaranes, lendenfeldaranes K–Q (1–7), characterized by methylation at C-24, together with five known derivatives, lendenfeldarane B (8), 25-nor-24-methyl-12,24-dioxoscalar-16-en-22-oic acid (9), 24-methyl-12,24,25-trioxoscalar-16-en-22-oic acid (10), felixin B (11), and 23-hydroxy-20-methyldeoxoscalarin (12). Scalaranes 1–4 and 6–12 were assayed against superoxide anion generation and elastase release, which represented the neutrophilic inflammatory responses of respiratory burst and degranulation, respectively. The results indicated that 1–3 and 6–12 exhibited potential anti-inflammatory activities (IC50 for superoxide anion scavenging: 0.87~6.57 μM; IC50 for elastase release: 1.12~6.97 μM).
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Dominikowska J, Rybarczyk-Pirek AJ, Fonseca Guerra C. Lack of Cooperativity in the Triangular X 3 Halogen-Bonded Synthon? CRYSTAL GROWTH & DESIGN 2021; 21:597-607. [PMID: 33442333 PMCID: PMC7792510 DOI: 10.1021/acs.cgd.0c01410] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/06/2020] [Indexed: 05/26/2023]
Abstract
We have investigated 44 crystal structures, found in the Cambridge Structural Database, containing the X3 synthon (where X = Cl, Br, I) in order to verify whether three type II halogen-halogen contacts forming the synthon exhibit cooperativity. A hypothesis that this triangular halogen-bonded motif is stabilized by cooperative effects is postulated on the basis of structural data. However, theoretical investigations of simplified model systems in which the X3 motif is present demonstrate that weak synergy occurs only in the case of the I3 motif. In the present paper we computationally investigate crystal structures in which the X3 synthon is present, including halomesitylene structures, that are usually described as being additionally stabilized by a synergic interaction. Our computations find no cooperativity for halomesitylene trimers containing the X3 motif. Only in the case of two other structures containing the I3 synthon a very weak or weak synergy, i.e. the cooperative effect being stronger than -0.40 kcal mol-1, is found. The crystal structure of iodoform has the most pronounced cooperativity of all investigated systems, amounting to about 10% of the total interaction energy.
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Affiliation(s)
- Justyna Dominikowska
- Theoretical
and Structural Chemistry Group, Department of Physical Chemistry,
Faculty of Chemistry, University of Lodz, Pomorska 163/165, 90-236 Łódź, Poland
- Department
of Theoretical Chemistry and Amsterdam Centre for Multiscale Modelling, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Agnieszka J. Rybarczyk-Pirek
- Theoretical
and Structural Chemistry Group, Department of Physical Chemistry,
Faculty of Chemistry, University of Lodz, Pomorska 163/165, 90-236 Łódź, Poland
| | - Célia Fonseca Guerra
- Department
of Theoretical Chemistry and Amsterdam Centre for Multiscale Modelling, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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Peng BR, Lai KH, Chang YC, Chen YY, Su JH, Huang YM, Chen PJ, Yu SSF, Duh CY, Sung PJ. Sponge-Derived 24-Homoscalaranes as Potent Anti-Inflammatory Agents. Mar Drugs 2020; 18:md18090434. [PMID: 32825198 PMCID: PMC7551342 DOI: 10.3390/md18090434] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 02/08/2023] Open
Abstract
Scalarane-type sesterterpenoids are known for their therapeutic potential in cancer treatments. However, the anti-inflammatory properties of this class of metabolites remain elusive. Our current work aimed to investigate the anti-inflammatory scalaranes from marine sponge Lendenfeldia sp., resulting in the isolation of six new 24-homoscalaranes, lendenfeldaranes E–J (1–6). The structures of the new metabolites were determined by extensive spectroscopic analyses, and the absolute configuration of 1 was established by electronic circular dichroism (ECD) calculations. Compounds 2 and 3 were discovered to individually reduce the generation of superoxide anions, and compound 1 displayed an inhibitor effect on the release of elastase. These three compounds were proven to be the first anti-neutrophilic scalaranes.
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Affiliation(s)
- Bo-Rong Peng
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan;
- Doctoral Degree Program in Marine Biotechnology, Academia Sinica, Taipei 115201, Taiwan
- National Museum of Marine Biology and Aquarium, Pingtung 944401, Taiwan; (Y.-Y.C.); (J.-H.S.)
| | - Kuei-Hung Lai
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 110301, Taiwan;
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333324, Taiwan;
| | - Yu-Chia Chang
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333324, Taiwan;
| | - You-Ying Chen
- National Museum of Marine Biology and Aquarium, Pingtung 944401, Taiwan; (Y.-Y.C.); (J.-H.S.)
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan
| | - Jui-Hsin Su
- National Museum of Marine Biology and Aquarium, Pingtung 944401, Taiwan; (Y.-Y.C.); (J.-H.S.)
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944401, Taiwan
| | - Yusheng M. Huang
- Department of Marine Recreation, National Penghu University of Science and Technology, Penghu 880011, Taiwan;
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung 433303, Taiwan;
| | - Steve Sheng-Fa Yu
- Doctoral Degree Program in Marine Biotechnology, Academia Sinica, Taipei 115201, Taiwan
- Institute of Chemistry, Academia Sinica, Taipei 115201, Taiwan
- Correspondence: (S.S.-F.Y.); (C.-Y.D.); (P.-J.S.); Tel.: +886-2-5572-8650 (S.S.-F.Y.); +886-7-525-2000 (ext. 5036) (C.-Y.D.); +886-8-882-5037 (P.-J.S.); Fax: + 886-2-2783-1237 (S.S.-F.Y.); +886-7-525-5020 (C.-Y.D.); +886-8-882-5087 (P.-J.S.)
| | - Chang-Yih Duh
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan;
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan
- Correspondence: (S.S.-F.Y.); (C.-Y.D.); (P.-J.S.); Tel.: +886-2-5572-8650 (S.S.-F.Y.); +886-7-525-2000 (ext. 5036) (C.-Y.D.); +886-8-882-5037 (P.-J.S.); Fax: + 886-2-2783-1237 (S.S.-F.Y.); +886-7-525-5020 (C.-Y.D.); +886-8-882-5087 (P.-J.S.)
| | - Ping-Jyun Sung
- National Museum of Marine Biology and Aquarium, Pingtung 944401, Taiwan; (Y.-Y.C.); (J.-H.S.)
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944401, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404333, Taiwan
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807377, Taiwan
- Correspondence: (S.S.-F.Y.); (C.-Y.D.); (P.-J.S.); Tel.: +886-2-5572-8650 (S.S.-F.Y.); +886-7-525-2000 (ext. 5036) (C.-Y.D.); +886-8-882-5037 (P.-J.S.); Fax: + 886-2-2783-1237 (S.S.-F.Y.); +886-7-525-5020 (C.-Y.D.); +886-8-882-5087 (P.-J.S.)
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Zhang M, Guo W, Wei J, Shi J, Zhang J, Ge H, Tao H, Liu X, Hu Q, Cai Z. Determination of newly synthesized dihydroxylated polybrominated diphenyl ethers in sea fish by gas chromatography-tandem mass spectrometry. CHEMOSPHERE 2020; 240:124878. [PMID: 31563719 DOI: 10.1016/j.chemosphere.2019.124878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/14/2019] [Accepted: 09/14/2019] [Indexed: 06/10/2023]
Abstract
Dihydroxylated polybrominated diphenyl ethers (diOH-PBDEs) can be natural products of marine organisms or the metabolites of PBDEs. The optimal determination method and concentration of diOH-PBDEs in seafood are unknown due to a lack of commercially available standards. In the present study, diOH-PBDEs were synthesized, and an efficient measurement method for OH-PBDEs and diOH-PBDEs in sea fish muscle samples, including extraction, clean-up and gas chromatography-tandem mass spectrometry (GC-MS/MS) analysis, was established. Pressurized liquid extraction (PLE) followed by partitioning with a KOH solution and florisil cartridge clean-up proved to be a reliable and robust method for detecting all OH-PBDEs/diOH-PBDEs. GC-MS/MS with an electron ionization (EI) source analysis was a sensitive analytical instrument for OH-PBDEs/diOH-PBDEs. The recovery using this method ranged from 19% to 101%, 28%-88% and 42%-90% for 10 ng, 20 ng and 40 ng spiking levels, respectively. The equipment detection limits (EDLs) were in the range of 0.31-2.78 pg/μL, and the limits of detection (LOD) for the method were in the range of 5.07-38.74 pg/g wet weight. Concentrations of diOH-PBDEs in the marine fish muscle samples were in the range of 32.43-1528.63 pg/g wet weight. Similar compositions of OH-PBDEs/diOH-PBDEs were found within the same family of marine fish.
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Affiliation(s)
- Mengtao Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; China State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Wei Guo
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Juntong Wei
- China State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Jianghong Shi
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Jiawei Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Hui Ge
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Huanyu Tao
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiaowei Liu
- Hefei University of Technology (Xuancheng Campus) Xuancheng, China
| | - Qing Hu
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zongwei Cai
- China State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
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10
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Marine Pharmacology in 2014-2015: Marine Compounds with Antibacterial, Antidiabetic, Antifungal, Anti-Inflammatory, Antiprotozoal, Antituberculosis, Antiviral, and Anthelmintic Activities; Affecting the Immune and Nervous Systems, and Other Miscellaneous Mechanisms of Action. Mar Drugs 2019; 18:md18010005. [PMID: 31861527 PMCID: PMC7024264 DOI: 10.3390/md18010005] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/12/2019] [Accepted: 12/14/2019] [Indexed: 12/31/2022] Open
Abstract
The systematic review of the marine pharmacology literature from 2014 to 2015 was completed in a manner consistent with the 1998-2013 reviews of this series. Research in marine pharmacology during 2014-2015, which was reported by investigators in 43 countries, described novel findings on the preclinical pharmacology of 301 marine compounds. These observations included antibacterial, antifungal, antiprotozoal, antituberculosis, antiviral, and anthelmintic pharmacological activities for 133 marine natural products, 85 marine compounds with antidiabetic, and anti-inflammatory activities, as well as those that affected the immune and nervous system, and 83 marine compounds that displayed miscellaneous mechanisms of action, and may probably contribute to novel pharmacological classes upon further research. Thus, in 2014-2015, the preclinical marine natural product pharmacology pipeline provided novel pharmacology as well as new lead compounds for the clinical marine pharmaceutical pipeline, and thus continued to contribute to ongoing global research for alternative therapeutic approaches to many disease categories.
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11
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Wang Z, Li PL, Luo XC, Wang Q, van Ofwegen L, Tang XL, Li GQ. Terpenoids from the South China Sea soft coral Sinularia multiflora. Nat Prod Res 2019; 35:2395-2402. [PMID: 31631686 DOI: 10.1080/14786419.2019.1678615] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A rare sinulariane-type norcembranoid sinulariadiolide B (1) with a unique cyano group, and a eunicellin-based diterpenoid multifloralin (2), along with two known related analogues, sinulariadiolide (3) and sclerophytin E (4), were isolated from the extract of the South China Sea soft coral Sinularia multiflora. Their structures were elucidated on the basis of detailed spectroscopic analysis and by comparison with previously reported data. Compounds 2 and 4 showed potent antifouling activity against barnacle Balanus albicostatus.
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Affiliation(s)
- Zheng Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Ping-Lin Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Xiang-Chao Luo
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Qi Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, People's Republic of China.,Institutes of Chronic Disease, Qingdao University, Qingdao, People's Republic of China
| | | | - Xu-Li Tang
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Guo-Qiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, People's Republic of China.,Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
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12
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Utkina NK, Likhatskaya GN, Balabanova LA, Bakunina IY. Sponge-derived polybrominated diphenyl ethers and dibenzo-p-dioxins, irreversible inhibitors of the bacterial α-d-galactosidase. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2019; 21:1754-1763. [PMID: 31532404 DOI: 10.1039/c9em00301k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An integrated in vitro and in silico approach was applied to evaluate the potency of hydroxylated polybrominated diphenyl ethers (OH-PBDEs) and spongiadioxins (OH-PBDDs) isolated from Dysidea sponges on the activity of the recombinant α-d-galactosidase of the GH36 family. It was revealed for the first time that all compounds rapidly and apparently irreversibly inhibited the bacterial α-d-galactosidase. The structure-activity relationship study in the series of OH-PBDEs showed that the presence of an additional hydroxyl group in 5 significantly enhanced the potency (IC50 4.26 μM); the increase of bromination in compounds from 1 to 3 increased their potency (IC50 41.8, 36.0, and 16.0 μM, respectively); the presence of a methoxy group decreased the potency (4, IC50 60.5 μM). Spongiadioxins 6, 7, and 8 (IC50 16.6, 33.1, and 28.6 μM, respectively) exhibited inhibitory action comparable to that of monohydroxylated diphenyl ethers 1-3. Docking analysis revealed that all compounds bind in a pocket close to the catalytic amino acid residues. Molecular docking detected significant compound-enzyme interactions in the binding sites of α-d-galactosidase. Superimposition of the enzyme-substrate and the enzyme-inhibitor complexes showed that their binding sites overlap.
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Affiliation(s)
- Natalia K Utkina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690022, Russian Federation.
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13
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Elhendawy MA, Wanas AS, Radwan MM, Azzaz NA, Toson ES, ElSohly MA. Chemical and Biological Studies of Cannabis sativa Roots. Med Cannabis Cannabinoids 2018; 1:104-111. [PMID: 32296742 DOI: 10.1159/000495582] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The chemical study of Cannabis sativa roots led to the isolation and identification of 10 compounds. Their chemical structures were unambiguously established on the basis of 1D and 2D NMR spectroscopy and mass spectrometry as friedelan-3-one (1), epifriedelanol (2), β-sitosterol (3), ergost-5-en-3-ol (4), methyl hexadecanoate (5), pentadecanoic acid (6), 10E-hexadecenoic acid (7), 4-hydroxy-3-methoxybenzaldehyde (8), β-sitosterol-β-D-glucoside (9) and p-coumaroyltyramine (10). Compounds 5-9 were reported for the first time from C. sativa roots. All the isolated compounds were tested for their antimicrobial activity. Compound 4 showed modest activity against Cryptococcus neoformans with an IC50 value of 13.7 μg/mL, while compound 10 displayed potent activity against Escherichia coli with an IC50 value of 0.8 μg/mL. A high-performance liquid chromatography method was developed and validated for the detection and quantification of p-coumaroyltyramine (10) in the extracts of different varieties of C. sativa roots.
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Affiliation(s)
- Mostafa A Elhendawy
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA.,Department of Chemistry, Faculty of Agriculture, Damietta University, Damietta, Egypt
| | - Amira S Wanas
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA.,Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Mohamed M Radwan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Nabil A Azzaz
- Department of Chemistry, Faculty of Agriculture, Damietta University, Damietta, Egypt
| | - ElShahat S Toson
- Department of Chemistry, Faculty of Science, Damietta University, Damietta, Egypt
| | - Mahmoud A ElSohly
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA.,Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS, USA
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14
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Mohammed R, Radwan MM, Ma G, Mohamed TA, Seliem MA, Thabet M, ElSohly MA. Bioactive sterols and sesquiterpenes from the Red Sea soft coral Sinularia terspilli. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1876-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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