101
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Autophagy contributes to falcarindiol-induced cell death in breast cancer cells with enhanced endoplasmic reticulum stress. PLoS One 2017; 12:e0176348. [PMID: 28441457 PMCID: PMC5404785 DOI: 10.1371/journal.pone.0176348] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/10/2017] [Indexed: 11/19/2022] Open
Abstract
Falcarindiol (FAD) is a natural polyyne have been found in many food and dietary plants. It has been found to have various beneficial biological activities. In this study, we demonstrated its anticancer function and mechanism in breast cancer cells. We found that FAD preferentially induces cell death in breast cancer cells. FAD-induced cell death is caspase-dependent. However, FAD induces autophagy to contribute to the cell death. Blocking autophagy by either chemical inhibitors or genetic knockout of autophagy signaling component inhibits FAD-induced cell death. We further found that FAD-induced cell death is mediated by the induction of endoplasmic reticulum stress. We also identified that FAD has synergistic effect with approved cancer drugs 5-FU and Bortezomib in killing breast cancer cells. Summarily, these data demonstrate that FAD has strong and specific anticancer effect in breast cancer cells, and provide some insights about the roles of autophagy in FAD-induced cell death.
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102
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Blagojević PD, Pešić MS, Radulović NS. Methyl 3-(5-(prop-1-yn-1-yl)thiophen-2-yl)propanoate: A Rare Acetylene Derivative from Artemisia absinthium Root Essential Oil. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Methyl 3-(5-(prop-1-yn-1-yl)thiophen-2-yl)propanoate (1), biosynthetically and structurally related to dehydromatricaria ester, was isolated from the root essential oil of Artemisia absinthium L. (0.7% of the total oil). This is the second record of this compound and the very first one regarding it as an essential-oil constituent. In this paper, we give details regarding its isolation, structural elucidation and gas chromatographic properties (RI on DB-5 MS column: 1694). The NMR-based identification of the compound was corroborated by simulation of its 1H- and 13C-NMR spectra using a GIAO method (DFT level of theory). A tentative biosynthetic pathway, possibly leading to this compound, is also proposed.
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Affiliation(s)
- Polina D. Blagojević
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Marko S. Pešić
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Niko S. Radulović
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
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103
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104
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Schmidt B, Audörsch S. Stereoselective Total Syntheses of Polyacetylene Plant Metabolites via Ester-Tethered Ring Closing Metathesis. J Org Chem 2017; 82:1743-1760. [PMID: 28085285 DOI: 10.1021/acs.joc.6b02987] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Total syntheses of five naturally occurring polyacetylenes from three different plants are described. These natural products have in common an E,Z-configured conjugated diene linked to a di- or triyne chain. As the key method to stereoselectively establish the E,Z-diene part, an ester-tethered ring-closing metathesis/base-induced eliminative ring opening sequence was used. The results presented herein do not only showcase the utility of this tethered RCM variant but have also prompted us to suggest that the originally assigned absolute configurations of chiral polyacetylenes from Atractylodes macrocephala should be revised or at least reconsidered.
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Affiliation(s)
- Bernd Schmidt
- Universität Potsdam , Institut für Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Stephan Audörsch
- Universität Potsdam , Institut für Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
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105
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Sun DY, Han GY, Gong JX, Nay B, Li XW, Guo YW. Asymmetric Total Synthesis of Distaminolyne A and Revision of Its Absolute Configuration. Org Lett 2017; 19:714-717. [DOI: 10.1021/acs.orglett.6b03892] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Dong-Yu Sun
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech
Park, Shanghai 201203, China
- School
of Pharmaceutical Sciences, Jinzhou Medical University, Jinzhou 121001, China
| | - Guan-Ying Han
- The First Affiliated Hospital of Jinzhou Medical University, No. 2, Renmin Road, Jinzhou 121001, China
| | - Jing-Xu Gong
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech
Park, Shanghai 201203, China
| | - Bastien Nay
- Laboratoire
de Synthèse Organique (UMR 7652 CNRS), Ecole Polytechnique, Université Paris-Saclay, 91128 Palaiseau Cedex, France
| | - Xu-Wen Li
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech
Park, Shanghai 201203, China
| | - Yue-Wei Guo
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech
Park, Shanghai 201203, China
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106
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Della TD, Suresh CH. Massive dihydrogen uptake by anionic carbon chains. Phys Chem Chem Phys 2017; 19:5830-5838. [DOI: 10.1039/c6cp07722f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The remarkable capacity of anionic and dianionic carbon chains to bind dihydrogen compared to their neutral moieties has been established theoretically and these one dimensional anions could be utilized in developing novel H2 storage materials.
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Affiliation(s)
- Therese Davis Della
- Chemical Sciences and Technology Division
- Academy of Scientific & Innovative Research
- CSIR – National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram
- India
| | - Cherumuttathu H. Suresh
- Chemical Sciences and Technology Division
- Academy of Scientific & Innovative Research
- CSIR – National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram
- India
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107
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Zeng Y, Mahmood Q, Liang T, Sun WH. Geometry Constrained N-(5,6,7-Trihydroquinolin-8-ylidene)arylaminopalladium Dichloride Complexes: Catalytic Behavior toward Methyl Acrylate (MA), Methyl Acrylate-co-Norbornene (MA-co-NB) Polymerization and Heck Coupling. Molecules 2016; 21:molecules21121686. [PMID: 27941630 PMCID: PMC6273177 DOI: 10.3390/molecules21121686] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 12/02/2016] [Accepted: 12/03/2016] [Indexed: 11/16/2022] Open
Abstract
A new pair of plladium complexes (Pd4 and Pd5) ligated with constrained N-(5,6,7-trihydroquinolin-8-ylidene)arylamine ligands have been prepared and well characterized by 1H-, 13C-NMR and FTIR spectroscopies as well as elemental analysis. The molecular structure of Pd4 and Pd5 in solid state have also been determined by X-ray diffraction, showing slightly distorted square planar geometry around the palladium metal center. All complexes Pd1–Pd5 are revealed highly efficient catalyst in methyl acrylate (MA) polymerization as well as methyl acrylate/norbornene (MA/NB) copolymerization. In the case of MA polymerization, as high as 98.4% conversion with high molecular weight up to 6282 kg·mol−1 was achieved. Likewise, Pd3 complex has good capability to incorporate about 18% NB content into MA polymer chains. Furthermore, low catalyst loadings (0.002 mol %) of Pd4 or Pd5 are able to efficiently mediate the coupling of haloarenes with styrene affording up to 98% conversion.
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Affiliation(s)
- Yanning Zeng
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| | - Qaiser Mahmood
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- International School, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Tongling Liang
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
- International School, University of Chinese Academy of Sciences, Beijing 100049, China.
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108
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Alkynyl-Containing Peptides of Marine Origin: A Review. Mar Drugs 2016; 14:md14110216. [PMID: 27886049 PMCID: PMC5128759 DOI: 10.3390/md14110216] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/15/2016] [Accepted: 11/16/2016] [Indexed: 12/13/2022] Open
Abstract
Since the 1990s, a number of terminal alkynyl residue-containing cyclic/acyclic peptides have been identified from marine organisms, especially cyanobacteria and marine mollusks. This review has presented 66 peptides, which covers over 90% marine peptides with terminal alkynyl fatty acyl units. In fact, more than 90% of these peptides described in the literature are of cyanobacterial origin. Interestingly, all the linear peptides featured with terminal alkyne were solely discovered from marine cyanobacteria. The objective of this article is to provide an overview on the types, structural characterization of these unusual terminal alkynyl fatty acyl units, as well as the sources and biological functions of their composed peptides. Many of these peptides have a variety of biological activities, including antitumor, antibacterial, antimalarial, etc. Further, we have also discussed the evident biosynthetic origin responsible for formation of terminal alkynes of natural PKS (polyketide synthase)/NRPS (nonribosome peptide synthetase) hybrids.
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109
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Shao L, Nie MK, Chen MY, Wang J, Wang CZ, Huang WH, Yuan CS, Zhou HH. Screening and identifying antioxidants from Oplopanax elatus using 2,2'-diphenyl-1-picrylhydrazyl with off-line two-dimensional HPLC coupled with diode array detection and tandem time-of-flight mass spectrometry. J Sep Sci 2016; 39:4269-4280. [PMID: 27624907 DOI: 10.1002/jssc.201600838] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 11/09/2022]
Abstract
The root of Oplopanax elatus (Nakai) Nakai has a well-known history of use for the treatment of diseases such as neurasthenia, cardiovascular disorders, and cancer by the native people in northeast China. It is important to screen and identify the bioactive molecules from its root rapidly. Hereby, an off-line two-dimensional high performance liquid chromatography coupled with diode array detection and tandem time-of-flight mass spectrometry together with 2,2'-diphenyl-1-picrylhydrazyl was established to screen antioxidants from the root of O. elatus. A Waters cyanogen column (150 × 3.9 mm, id, 4 μm) was used for the first dimensional liquid chromatography, while a Hypersil BDS-C18 column (250 × 4.6 mm, id, 5 μm) was installed for the second dimension liquid chromatographic analysis. Twenty-eight compounds had been tentatively identified from the methanol extract of the air-dried root of O. elatus including six polyynes and eight phenolic derivatives were screened with antioxidant activity. The developed method could be expedient for screening and identifying antioxidants from O. elatus.
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Affiliation(s)
- Li Shao
- Department of Pharmacognosy, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Ming-Kun Nie
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Man-Yun Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Jin Wang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Chong-Zhi Wang
- Tang Center for Herbal Medicine Research, The Pritzker School of Medicine, University of Chicago, Chicago, IL, USA
| | - Wei-Hua Huang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China.,Tang Center for Herbal Medicine Research, The Pritzker School of Medicine, University of Chicago, Chicago, IL, USA
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research, The Pritzker School of Medicine, University of Chicago, Chicago, IL, USA
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
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110
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Listunov D, Saffon-Merceron N, Joly E, Fabing I, Génisson Y, Maraval V, Chauvin R. Ethynylogation approach in pharmacophore design: from alkynyl-to butadiynyl-carbinols vs antitumoral cytotoxicity. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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111
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Liu J, Li HL, Guo XR, Zhou L, Wang Y, Duan YN, Wang MZ, Na RS, Yu B. A general strategy toward the total synthesis of C17 polyacetylenes virols A and C. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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112
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Kjellenberg L, Johansson E, Gustavsson KE, Granstedt A, Olsson ME. Correlations between Polyacetylene Concentrations in Carrot (Daucus carota L.) and Various Soil Parameters. Foods 2016; 5:foods5030060. [PMID: 28231155 PMCID: PMC5302391 DOI: 10.3390/foods5030060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/22/2016] [Accepted: 08/26/2016] [Indexed: 12/28/2022] Open
Abstract
This study assessed the concentrations of three falcarinol-type polyacetylenes (falcarinol, falcarindiol, falcarindiol-3-acetate) in carrots and the correlations between these and different soil traits. A total of 144 carrot samples, from three different harvests taken a single season, were analysed in terms of their polyacetylene concentrations and root development. On one of the harvesting occasions, 48 soil samples were also taken and analysed. The chemical composition of the soil was found to influence the concentrations of falcarinol-type polyacetylenes in carrots. When the total soil potassium level was 200 mg/100 g soil, the concentration of falcarindiol (FaDOH) in the carrot samples was 630 μg/g DW, but when carrots were grown in soil with a total potassium level of 300 mg/100 g soil, the FaDOH concentration in the carrots fell to 445 μg/g DW. Carrots grown in soils generally low in available phosphorus exhibited higher levels of falcarindiol if the soil was also low in available magnesium and calcium. The concentrations of polyacetylenes in carrots were positively correlated with total soil phosphorus level, but negatively correlated with total soil potassium level. Of the three polyacetylenes analysed, FaDOH concentrations were influenced most by changes in soil chemical composition.
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Affiliation(s)
- Lars Kjellenberg
- Department of Plant Breeding, Swedish University of Agriculture, P.O. Box 101, Alnarp 230 53, Sweden.
| | - Eva Johansson
- Department of Plant Breeding, Swedish University of Agriculture, P.O. Box 101, Alnarp 230 53, Sweden.
| | - Karl-Erik Gustavsson
- Department of Plant Breeding, Swedish University of Agriculture, P.O. Box 101, Alnarp 230 53, Sweden.
| | - Artur Granstedt
- Biodynamic Research Institute, Skilleby, Järna 153 91, Sweden.
| | - Marie E Olsson
- Department of Plant Breeding, Swedish University of Agriculture, P.O. Box 101, Alnarp 230 53, Sweden.
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113
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Zhu X, Shieh P, Su M, Bertozzi CR, Zhang W. A fluorogenic screening platform enables directed evolution of an alkyne biosynthetic tool. Chem Commun (Camb) 2016; 52:11239-42. [PMID: 27561030 DOI: 10.1039/c6cc05990b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Directed evolution was used to improve the activity of JamB, a membrane-bound bifunctional desaturase/acetylenase. To quickly assess the protein engineering outcomes, we developed a new platform for quantifying extracellular alkyne-tagged metabolites through a fluorogenic click reaction. Random mutagenesis yielded the best JamB variant with ∼20-fold increased activity in E. coli.
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Affiliation(s)
- Xuejun Zhu
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94704, USA
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114
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Tomassini A, Sciubba F, Di Cocco ME, Capuani G, Delfini M, Aureli W, Miccheli A. (1)H NMR-Based Metabolomics Reveals a Pedoclimatic Metabolic Imprinting in Ready-to-Drink Carrot Juices. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5284-5291. [PMID: 27281439 DOI: 10.1021/acs.jafc.6b01555] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Carrots are usually consumed in their native form or processed into many different products. Carrot juice is a popular beverage consumed throughout the world and is attracting increasing attention due to its nutritional value, being a natural source of bioactive compounds. Ready-to-drink carrot juices produced in the same factory were analyzed by (1)H nuclear magnetic resonance (NMR) spectroscopy. The juices were made from carrot roots of the same cultivar grown in three different geographical areas in Italy. More than 30 compounds have been identified and quantified, and the data was subjected to univariate ANOVA and multivariate analyses. Clear geographical-dependent clustering was observed, and the metabolic profiles were related to the different pedoclimatic conditions. The proposed phytoprofiling approach could be employed on an industrial scale to evaluate finished products involving different sites of supply of the raw material, thus improving both the quality and uniformity of the juices.
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Affiliation(s)
- Alberta Tomassini
- Department of Chemistry, "La Sapienza" University of Rome , Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Fabio Sciubba
- Department of Chemistry, "La Sapienza" University of Rome , Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Maria Enrica Di Cocco
- Department of Chemistry, "La Sapienza" University of Rome , Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Giorgio Capuani
- Department of Chemistry, "La Sapienza" University of Rome , Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Maurizio Delfini
- Department of Chemistry, "La Sapienza" University of Rome , Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Walter Aureli
- Research & Development, Aureli Mario S.S. Agricola , Via Mario Aureli 7, 67050 Ortucchio (Aq), Italy
| | - Alfredo Miccheli
- Department of Chemistry, "La Sapienza" University of Rome , Piazzale Aldo Moro 5, 00185 Rome, Italy
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115
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Princival IMRG, Ferreira JG, Silva TG, Aguiar JS, Princival JL. Synthesis and in vitro evaluation of (R), (S) and (R/S)-2-hexyne-1,4-diol, a natural product produced by fungus Clitocybe catinus, and related analogs as potential anticancer agents. Bioorg Med Chem Lett 2016; 26:2839-2842. [PMID: 27142752 DOI: 10.1016/j.bmcl.2016.04.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/11/2016] [Accepted: 04/20/2016] [Indexed: 12/11/2022]
Abstract
The search for natural products and related analogs as potential anticancer agents has seen a significant growth worldwide. Since small sized propargylic diols can be found in nature and chemically synthesized, their evaluation against cancer cells has been of great interest, being a topic of relevance to be investigated. For this purpose, a scalable approach aiming at the synthesis of several propargylic diols and their bioactivity against seven tumor cell lines were evaluated. Interestingly, when the compound 1a, a natural product produced by fungus Clitocybe catinus, was tested in its racemic mixture a more effective activity was observed if compared when enantiopure R-1a or S-1a were tested separately.
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Affiliation(s)
- Iza Mirela R G Princival
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil; Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Jeiely G Ferreira
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Teresinha G Silva
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Jaciana S Aguiar
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Jefferson L Princival
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil
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116
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Wang J, Pearce AN, Chan STS, Taylor RB, Page MJ, Valentin A, Bourguet-Kondracki ML, Dalton JP, Wiles S, Copp BR. Biologically Active Acetylenic Amino Alcohol and N-Hydroxylated 1,2,3,4-Tetrahydro-β-carboline Constituents of the New Zealand Ascidian Pseudodistoma opacum. JOURNAL OF NATURAL PRODUCTS 2016; 79:607-610. [PMID: 26670413 DOI: 10.1021/acs.jnatprod.5b00770] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The first occurrence of an acetylenic 1-amino-2-alcohol, distaminolyne A (1), isolated from the New Zealand ascidian Pseudodistoma opacum, is reported. The isolation and structure elucidation of 1 and assignment of absolute configuration using the exciton coupled circular dichroism technique are described. In addition, a new N-9 hydroxy analogue (2) of the known P. opacum metabolite 7-bromohomotrypargine is also reported. Antimicrobial screening identified modest activity of 1 toward Escherichia coli, Staphylococcus aureus, and Mycobacterim tuberculosis, while 2 exhibited a moderate antimalarial activity (IC50 3.82 μM) toward a chloroquine-resistant strain (FcB1) of Plasmodium falciparum.
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Affiliation(s)
| | | | | | - Richard B Taylor
- Leigh Marine Laboratory, Institute of Marine Science, University of Auckland , PO Box 349, Warkworth 0941, New Zealand
| | - Michael J Page
- National Institute of Water & Atmospheric Research (NIWA) Ltd , PO Box 893, Nelson 7010, New Zealand
| | - Alexis Valentin
- Université Paul Sabatier, PHARMA-DEV, UMR 152 IRD-UPS, Université de Toulouse , 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS, Muséum National d'Histoire Naturelle , 57 Rue Cuvier (C.P. 54), 75005 Paris, France
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117
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Schmidt B, Audörsch S. Stereoselective Total Synthesis of Atractylodemayne A, a Conjugated 2(E),8(Z),10(E)-Triene-4,6-diyne. Org Lett 2016; 18:1162-5. [DOI: 10.1021/acs.orglett.6b00274] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie (Organische
Synthesechemie), Karl-Liebknecht-Strasse
24-25, D-14476 Potsdam-Golm, Germany
| | - Stephan Audörsch
- Universitaet Potsdam, Institut fuer Chemie (Organische
Synthesechemie), Karl-Liebknecht-Strasse
24-25, D-14476 Potsdam-Golm, Germany
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118
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Balakrishnan C, Natarajan S, Neelakantan MA. Exploration of biological activities of alkyne arms containing Cu(ii) and Ni(ii) complexes: syntheses, crystal structures and DFT calculations. RSC Adv 2016. [DOI: 10.1039/c6ra20650f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Several mononuclear Cu(ii) and Ni(ii) Schiff base (N,O-donor) complexes were synthesized and characterized. The binding ability with DNA and BSA and catecholase activity of the complexes were investigated.
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Affiliation(s)
| | - Satheesh Natarajan
- Department of Pharmacy
- School of Health Sciences
- Kwazulu Natal University
- Durban-4001
- South Africa
| | - M. A. Neelakantan
- Chemistry Research Centre
- National Engineering College
- Tamil Nadu
- India
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119
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Chatterjee B, Gunanathan C. The ruthenium-catalysed selective synthesis of mono-deuterated terminal alkynes. Chem Commun (Camb) 2016; 52:4509-12. [DOI: 10.1039/c6cc01401a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient catalytic system is reported for chemoselective synthesis of mono-deuterated terminal alkynes using deuterium oxide in which the reaction proceeds via Ru–acetylide intermediates formed by selective activation of the sp-CH bond.
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Affiliation(s)
- Basujit Chatterjee
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar
- India
| | - Chidambaram Gunanathan
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar
- India
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120
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Kumar RK, Bi X. Catalytic σ-activation of carbon–carbon triple bonds: reactions of propargylic alcohols and alkynes. Chem Commun (Camb) 2016; 52:853-68. [DOI: 10.1039/c5cc08386a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of organic transformations have been developed based on conceptually novel catalytic σ-activation of CC bonds of alkynes.
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Affiliation(s)
- Rapolu Kiran Kumar
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
| | - Xihe Bi
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
- State Key Laboratory of Elemento-Organic Chemistry
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121
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Lu P, Hontecillas R, Abedi V, Kale S, Leber A, Heltzel C, Langowski M, Godfrey V, Philipson C, Tubau-Juni N, Carbo A, Girardin S, Uren A, Bassaganya-Riera J. Modeling-Enabled Characterization of Novel NLRX1 Ligands. PLoS One 2015; 10:e0145420. [PMID: 26714018 PMCID: PMC4694766 DOI: 10.1371/journal.pone.0145420] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 12/03/2015] [Indexed: 12/11/2022] Open
Abstract
Nucleotide-binding domain and leucine-rich repeat containing (NLR) family are intracellular sentinels of cytosolic homeostasis that orchestrate immune and inflammatory responses in infectious and immune-mediated diseases. NLRX1 is a mitochondrial-associated NOD-like receptor involved in the modulation of immune and metabolic responses. This study utilizes molecular docking approaches to investigate the structure of NLRX1 and experimentally assesses binding to naturally occurring compounds from several natural product and lipid databases. Screening of compound libraries predicts targeting of NLRX1 by conjugated trienes, polyketides, prenol lipids, sterol lipids, and coenzyme A-containing fatty acids for activating the NLRX1 pathway. The ligands of NLRX1 were identified by docking punicic acid (PUA), eleostearic acid (ESA), and docosahexaenoic acid (DHA) to the C-terminal fragment of the human NLRX1 (cNLRX1). Their binding and that of positive control RNA to cNLRX1 were experimentally determined by surface plasmon resonance (SPR) spectroscopy. In addition, the ligand binding sites of cNLRX1 were predicted in silico and validated experimentally. Target mutagenesis studies demonstrate that mutation of 4 critical residues ASP677, PHE680, PHE681, and GLU684 to alanine resulted in diminished affinity of PUA, ESA, and DHA to NLRX1. Consistent with the regulatory actions of NLRX1 on the NF-κB pathway, treatment of bone marrow derived macrophages (BMDM)s with PUA and DHA suppressed NF-κB activity in a NLRX1 dependent mechanism. In addition, a series of pre-clinical efficacy studies were performed using a mouse model of dextran sodium sulfate (DSS)-induced colitis. Our findings showed that the regulatory function of PUA on colitis is NLRX1 dependent. Thus, we identified novel small molecules that bind to NLRX1 and exert anti-inflammatory actions.
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Affiliation(s)
- Pinyi Lu
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Raquel Hontecillas
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Vida Abedi
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Shiv Kale
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Andrew Leber
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Chase Heltzel
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Mark Langowski
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Victoria Godfrey
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Casandra Philipson
- BioTherapeutics, 1800 Kraft Drive, Suite 200, Blacksburg, Virginia, 24060, United States of America
| | - Nuria Tubau-Juni
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
| | - Adria Carbo
- BioTherapeutics, 1800 Kraft Drive, Suite 200, Blacksburg, Virginia, 24060, United States of America
| | - Stephen Girardin
- Laboratory of Medicine & Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Aykut Uren
- Georgetown University Medical Center, Washington, District of Columbia, 20057, United States of America
| | - Josep Bassaganya-Riera
- The Center for Modeling Immunity to Enteric Pathogens, Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- Nutritional Immunology and Molecular Medicine Laboratory (www.nimml.org), Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, United States of America
- * E-mail:
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122
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Zhu X, Su M, Manickam K, Zhang W. Bacterial Genome Mining of Enzymatic Tools for Alkyne Biosynthesis. ACS Chem Biol 2015; 10:2785-93. [PMID: 26441143 DOI: 10.1021/acschembio.5b00641] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The alkyne is an important functionality widely used in material science, pharmaceutical science, and chemical biology, but the importance of this functionality is contrasted by the very limited number of enzymes known to be involved in alkyne biosynthesis. We recently reported the first known carrier protein-dependent pathway for terminal alkyne formation, and in silico analysis suggested that this mechanism could be widespread in bacteria. In this paper, we screened additional homologous gene cassettes presumed to be involved in alkyne biosynthesis using both in vitro biochemical study and an E. coli-polyketide synthase (PKS) reporting system for in vivo analysis. We discovered and characterized a new terminal alkyne biosynthetic pathway comprised of TtuA, -B, and -C from Teredinibacter turnerae T7901. While the acyl-CoA ligase homologue (TtuA) demonstrated promiscuity in the activation and loading of medium-chain fatty acids onto the carrier protein (TtuC), the desaturase homologue (TtuB) showed stringent substrate specificity toward C10 fatty acyl moieties. In addition, TtuB was demonstrated to be a bifunctional desaturase/acetylenase that efficiently catalyzed two sequential O2-dependent dehydrogenation reactions. A novel terminal-alkyne bearing polyketide was further produced upon coexpression of ttuABC and a PKS gene in E. coli. The discovery and characterization of TtuA, -B, and -C provides us with a new bifunctional desaturase/acetylenase for mechanistic and structural study and expands the scarce enzyme inventory for the biosynthesis of the alkyne functionality, which has important applications in synthetic and chemical biology.
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Affiliation(s)
| | | | | | - Wenjun Zhang
- Physical
Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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123
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Takanashi E, Takada K, Hashimoto M, Itoh Y, Ise Y, Ohtsuka S, Okada S, Matsunaga S. Cytotoxic linear acetylenes from a marine sponge Pleroma sp. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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124
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Integrating mass spectrometry and genomics for cyanobacterial metabolite discovery. J Ind Microbiol Biotechnol 2015; 43:313-24. [PMID: 26578313 DOI: 10.1007/s10295-015-1705-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 10/03/2015] [Indexed: 01/01/2023]
Abstract
Filamentous marine cyanobacteria produce bioactive natural products with both potential therapeutic value and capacity to be harmful to human health. Genome sequencing has revealed that cyanobacteria have the capacity to produce many more secondary metabolites than have been characterized. The biosynthetic pathways that encode cyanobacterial natural products are mostly uncharacterized, and lack of cyanobacterial genetic tools has largely prevented their heterologous expression. Hence, a combination of cutting edge and traditional techniques has been required to elucidate their secondary metabolite biosynthetic pathways. Here, we review the discovery and refined biochemical understanding of the olefin synthase and fatty acid ACP reductase/aldehyde deformylating oxygenase pathways to hydrocarbons, and the curacin A, jamaicamide A, lyngbyabellin, columbamide, and a trans-acyltransferase macrolactone pathway encoding phormidolide. We integrate into this discussion the use of genomics, mass spectrometric networking, biochemical characterization, and isolation and structure elucidation techniques.
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125
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Kim J, Bertozzi CR. A Bioorthogonal Reaction of N-Oxide and Boron Reagents. Angew Chem Int Ed Engl 2015; 54:15777-81. [PMID: 26568479 DOI: 10.1002/anie.201508861] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Indexed: 12/15/2022]
Abstract
The development of bioorthogonal reactions has classically focused on bond-forming ligation reactions. In this report, we seek to expand the functional repertoire of such transformations by introducing a new bond-cleaving reaction between N-oxide and boron reagents. The reaction features a large dynamic range of reactivity, showcasing second-order rate constants as high as 2.3×10(3) M(-1) s(-1) using diboron reaction partners. Diboron reagents display minimal cell toxicity at millimolar concentrations, penetrate cell membranes, and effectively reduce N-oxides inside mammalian cells. This new bioorthogonal process based on miniscule components is thus well-suited for activating molecules within cells under chemical control. Furthermore, we demonstrate that the metabolic diversity of nature enables the use of naturally occurring functional groups that display inherent biocompatibility alongside abiotic components for organism-specific applications.
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Affiliation(s)
- Justin Kim
- Department of Chemistry and Howard Hughes Medical Institute, Stanford University, 380 Roth Way, Stanford, CA 94305 (USA)
| | - Carolyn R Bertozzi
- Department of Chemistry and Howard Hughes Medical Institute, Stanford University, 380 Roth Way, Stanford, CA 94305 (USA).
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126
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Affiliation(s)
- Justin Kim
- Department of Chemistry and Howard Hughes Medical Institute, Stanford University, 380 Roth Way, Stanford, CA 94305 (USA)
| | - Carolyn R. Bertozzi
- Department of Chemistry and Howard Hughes Medical Institute, Stanford University, 380 Roth Way, Stanford, CA 94305 (USA)
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127
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C15 acetogenins from the Laurencia complex: 50 years of research – an overview. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2015.07.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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128
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Dawid C, Dunemann F, Schwab W, Nothnagel T, Hofmann T. Bioactive C₁₇-Polyacetylenes in Carrots (Daucus carota L.): Current Knowledge and Future Perspectives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9211-9222. [PMID: 26451696 DOI: 10.1021/acs.jafc.5b04357] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
C17-polyacetylenes (PAs) are a prominent group of oxylipins and are primarily produced by plants of the families Apiaceae, Araliaceae, and Asteraceae, respectively. Recent studies on the biological activity of polyacetylenes have indicated their potential to improve human health due to anticancer, antifungal, antibacterial, anti-inflammatory, and serotogenic effects. These findings suggest targeting vegetables with elevated levels of bisacetylenic oxylipins, such as falcarinol, by breeding studies. Due to the abundant availability, high diversity of cultivars, worldwide experience, and high agricultural yields, in particular, carrot (Daucus carota L.) genotypes are a very promising target vegetable. This paper provides a review on falcarinol-type C17-polyacetylenes in carrots and a perspective on their potential as a future contributor to improving human health and well-being.
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Affiliation(s)
- Corinna Dawid
- Chair for Food Chemistry and Molecular Sensory Science, Technische Universität München , Lise-Meitner-Straße 34, D-85354 Freising, Germany
| | - Frank Dunemann
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Breeding Research on Horticultural Crops , Erwin-Baur-Strasse 27, D-06484 Quedlinburg, Germany
| | - Wilfried Schwab
- Biotechnology of Natural Products, Technische Universität München , Liesel-Beckmann-Strasse 1, D-85354 Freising, Germany
| | - Thomas Nothnagel
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Breeding Research on Horticultural Crops , Erwin-Baur-Strasse 27, D-06484 Quedlinburg, Germany
| | - Thomas Hofmann
- Chair for Food Chemistry and Molecular Sensory Science, Technische Universität München , Lise-Meitner-Straße 34, D-85354 Freising, Germany
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129
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Negri R. Polyacetylenes from terrestrial plants and fungi: Recent phytochemical and biological advances. Fitoterapia 2015; 106:92-109. [DOI: 10.1016/j.fitote.2015.08.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 08/21/2015] [Accepted: 08/22/2015] [Indexed: 01/07/2023]
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130
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Cheung SSC, Tai J, Hasman D, Ou D, Warnock GL. Inhibition of Human Pancreatic Cancer Cell Proliferation by Devil's Club Oplopanax horridus and Its Polyacetylene Bioactive Compound. Nutr Cancer 2015. [PMID: 26221768 DOI: 10.1080/01635581.2015.1055367] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Devil's club Oplopanax horridus (DC) is a close relative of ginseng; its inner root and stem bark extract showed antiproliferation activity on human leukemia, ovarian, breast and colon cancer cells. We study here the effects of DC 70% ethanol extract alone, or in combination with cisplatin, gemcitabine, and paclitaxel on pancreatic endocrine HP62 and pancreatic ductal carcinoma PANC-1 and BxPC-3 cells. Antiproliferation activity assay, cell cycle analysis by flow cytometry, apoptosis-related markers by antibody array, and RT-PCR assay were used for this study. DC extract inhibited proliferation of HP62 with IC50 (50% inhibition concentration) at 0.037±0.002% (v/v), PANC-1 at 0.0058 ± 0.0004% and BxPC-3 at 0.021 ± 0.003%. DC at 0.0033% combined with 1 nM of paclitaxel showed inhibition synergy on PANC-1 cells with a combination index of 0.44. Apoptosis focused antibody array profile indicated upregulation of cytochrome C, claspin, cIAP-2 and HTRA2/Omi apoptosis-related markers in DC-treated HP62 and PANC-1. Our data suggest that DC acts through targeting the intrinsic mitochondrial apoptosis pathway in the pancreatic cancer cells. The high antiproliferation potency of DC on PANC-1 is potentially useful as an adjunct therapy for treating pancreatic cancer, which is known for developing resistance to conventional chemotherapeutics.
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Affiliation(s)
- Susan S C Cheung
- a Department of Surgery , University of British Columbia , Vancouver , British Columbia , Canada
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131
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Ungeheuer F, Fürstner A. Concise Total Synthesis of Ivorenolide B. Chemistry 2015; 21:11387-92. [DOI: 10.1002/chem.201501765] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Felix Ungeheuer
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Alois Fürstner
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
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132
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Nickel S, Serwa RA, Kaschani F, Ninck S, Zweerink S, Tate EW, Kaiser M. Chemoproteomic Evaluation of the Polyacetylene Callyspongynic Acid. Chemistry 2015; 21:10721-8. [PMID: 26079733 DOI: 10.1002/chem.201500934] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Indexed: 01/17/2023]
Abstract
Polyacetylenes are a class of alkyne-containing natural products. Although potent bioactivities and thus possible applications as chemical probes have already been reported for some polyacetylenes, insights into the biological activities or molecular mode of action are still rather limited in most cases. To overcome this limitation, we describe the application of the polyacetylene callyspongynic acid in the development of an experimental roadmap for characterizing potential protein targets of alkyne-containing natural products. To this end, we undertook the first chemical synthesis of callyspongynic acid. We then used in situ chemical proteomics methods to demonstrate extensive callyspongynic acid-mediated chemical tagging of endoplasmic reticulum-associated lipid-metabolizing and modifying enzymes. We anticipate that an elucidation of protein targets of natural products may serve as an effective guide to the development of subsequent biological assays that aim to identify chemical phenotypes and bioactivities.
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Affiliation(s)
- Sabrina Nickel
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Remigiusz A Serwa
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ (UK)
| | - Farnusch Kaschani
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Sabrina Ninck
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Susanne Zweerink
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany)
| | - Edward W Tate
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ (UK)
| | - Markus Kaiser
- Chemische Biologie, ZMB, Universität Duisburg-Essen, Universitätsstr. 2, 45117 Essen (Germany).
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133
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Zhao Y, Si L, Liu D, Proksch P, Zhou D, Lin W. Truncateols A–N, new isoprenylated cyclohexanols from the sponge-associated fungus Truncatella angustata with anti-H1N1 virus activities. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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134
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Chen Y, Peng S, Luo Q, Zhang J, Guo Q, Zhang Y, Chai X. Chemical and Pharmacological Progress on Polyacetylenes Isolated from the Family Apiaceae. Chem Biodivers 2015; 12:474-502. [DOI: 10.1002/cbdv.201300396] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Indexed: 01/23/2023]
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135
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Liu J, Fang Y, Yang L, Qin X, Du G, Gao X. A qualitative, and quantitative determination and pharmacokinetic study of four polyacetylenes from Radix Bupleuri by UPLC-PDA-MS. J Pharm Biomed Anal 2015; 111:257-65. [PMID: 25912847 DOI: 10.1016/j.jpba.2015.04.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 03/28/2015] [Accepted: 04/02/2015] [Indexed: 02/06/2023]
Abstract
This study was carried out to identify some new antidepressant compounds present in Radix Bupleuri (RB) and to develop a method for their quantitative analysis in rat serum for the first time. Four polyacetylenes, including two new compounds, were isolated from Bupleurum scorzonerifoliu and identified. An in vitro uptake study using rat synaptosomes showed that the polyacetylenes potently inhibited serotonin, norepinephrine and dopamine reuptake, and exhibited an antidepressant activity with a potency comparable with or better than their corresponding specific inhibitors. An ultra-performance liquid chromatography coupled with photodiode array detector (UPLC-PDA) method was developed for their quantitative analysis in rat serum. The analysis was performed on a Waters BEH C18 column (1.7 μm, 100 × 2.1 mm i.d.) using a gradient system of acetonitrile and 0.03% trifluoroacetic acid water, with a detector wavelength of 315 nm. Only two polyacetylenes, ((2 Z,8 E,10 E)-pentadecatriene-4,6-diyn-1-ol (RB-2) and bupleurynol (RB-4)), were detected in the primarily pharmacokinetic study of the petroleum ether fraction of RB. Both were rapidly absorbed and slowly eliminated. The rat exposure was approximately linear under the studied dosages ranging from 22.5 to 90 g/kg herb. In summary, polyacetylenes appear to be the key components responsible for the antidepressant activity of RB, and could be used as chemical standards for the quality evaluation of RB.
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Affiliation(s)
- Jiali Liu
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, PR China; College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Yuan Fang
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, PR China; College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Lan Yang
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, PR China; College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Xuemei Qin
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, PR China; Key Laboratory of Chemical Biology and Molecular Engineering of Ministry Education, Shanxi University, Taiyuan 030006, PR China
| | - Guanhua Du
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, PR China; Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, PR China.
| | - Xiaoxia Gao
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, PR China.
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136
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Zhang L, Li ZH, Dong ZJ, Li Y, Liu JK. A Viscidane Diterpene and Polyacetylenes from Cultures of Hypsizygus marmoreus. NATURAL PRODUCTS AND BIOPROSPECTING 2015; 5:99-103. [PMID: 25821175 PMCID: PMC4402581 DOI: 10.1007/s13659-015-0058-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 03/22/2015] [Indexed: 06/04/2023]
Abstract
Investigation on the cultures of Hypsizygus marmoreus resulted in the isolation of a new viscidane diterpene, 8-oxoviscida-3,11(18)-diene-13,14,15,19-tetraol (1) and two new polyacetylenes, (E)-10-(1,1-dimethyl-2-propenyloxy)-2-decene-4,6,8-triyn-1-ol (2) and 10-(1,1-dimethyl-2-propenyloxy)deca-4,6,8-triyn-1-ol (3), together with two known polyacetylenes, (E)-2-decen-4,6,8-triyn-1-ol (4) and 4,6,8-decatriyn-1-ol (5). Their structures were elucidated on the basis of extensive spectroscopic studies. Compound 1 is the first finding of viscidane diterpene in mushrooms. Compounds 1, 3 and 5 were tested for cytotoxicity against human tumor cell lines HL-60, SMMC-7721, A-549, MCF-7 and SW-480. None of the compounds showed cytotoxic activity (IC50 > 40 µM).
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Affiliation(s)
- Ling Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204 China
| | - Zheng-Hui Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204 China
| | - Ze-Jun Dong
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204 China
| | - Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204 China
| | - Ji-Kai Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204 China
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137
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Huang SH, Li W, Chen L, Xu J, Hong R. Chemoenzymatic construction of chiral alkenyl acetylenic alcohol, a key building block to access diastereoisomers of polyacetylenes. BIORESOUR BIOPROCESS 2015. [DOI: 10.1186/s40643-014-0035-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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138
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Listunov D, Maraval V, Chauvin R, Génisson Y. Chiral alkynylcarbinols from marine sponges: asymmetric synthesis and biological relevance. Nat Prod Rep 2015; 32:49-75. [PMID: 25275665 DOI: 10.1039/c4np00043a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Covering: up to March 2014. Previous review on the topic: B. W. Gung, C. R. Chim., 2009, 12, 489-505. Chiral α-functional lipidic propargylic alcohols extracted from marine sponges, in particular of the pacific genus Petrosia, constitute a class of acetylenic natural products exhibiting remarkable in vitro biological activities, especially anti-tumoral cytotoxicity. These properties, associated to functionalities that are uncommon among natural products, have prompted recent projects on asymmetric total synthesis. On the basis of a three-sector structural typology, three main sub-types of secondary alkynylcarbinols (with either alkyl, alkenyl, or alkynyl as the second substituent) can be identified as the minimal pharmacophoric units. Selected natural products containing these functionalities have been targeted using previously known or on purpose-designed procedures, where the stereo-determining step can be: (i) a C-C bond forming reaction (e.g. the Zn-mediated addition of alkynyl nucleophiles to aldehydes in the presence of chiral aminoalcohols), (ii) a functional layout (e.g. the asymmetric organo- or metallo-catalytic reduction of ynones), or (iii) an enantiomeric resolution (e.g. a lipase-mediated kinetic resolution via acetylation). The promising medicinal importance of these targets is finally surveyed, and future investigation prospects are proposed, such as: (i) further total synthesis of known or future extraction products; (ii) the synthesis of non-natural analogues, with simpler lipophilic environments of the alkynylcarbinol-based pharmacophoric units; (iii) the variation and optimization of both the pharmacophoric units and their lipophilic environment; and (iv) investigations into the biological mode of action of these unique structures.
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Affiliation(s)
- Dymytrii Listunov
- UMR CNRS 5068, LSPCMIB, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France.
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139
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Liu Y, Du D, Liang Y, Xin G, Huang BZ, Huang W. Novel polyacetylenes from Coreopsis tinctoria Nutt. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 17:744-9. [PMID: 25563069 DOI: 10.1080/10286020.2014.996138] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Phytochemical investigation of the 95% EtOH extract of Coreopsis tinctoria Nutt. resulted in the isolation of two novel polyacetylenes, (2S)-(3Z,11E)-decadiene-5,7,9-triyne-1,2-diol (1) and (2R)-(3E,11Z)-decadiene-5,7,9-triyne-1,2-diol (2), together with two known polyacetylenes (3 and 4). The structures of these novel compounds were determined by extensive two-dimensional nuclear magnetic resonance, high-resolution mass spectrometry, and optical rotation. Compounds 1, 2, and 4 were evaluated for their anti-proliferative activities against C26 cell growth and inhibitory effects on the lipo-poly-saccharides-induced nitric oxide production using murine macrophage RAW 264.7 cells. However, compounds 1, 2, and 4 just showed weak activities.
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Affiliation(s)
- Yan Liu
- a Laboratory of Ethnopharmacology , Institute of Nanobiomedical Technology and Membrane Biology, Regenerative Medicine Research Center, West China Hospital/West China Medical School, Sichuan University , Chengdu 610041 , China
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140
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Abstract
Lipid metabolism is regulated by multiple signaling pathways, and generates a variety of bioactive lipid molecules. These bioactive lipid molecules known as signaling molecules, such as fatty acid, eicosanoids, diacylglycerol, phosphatidic acid, lysophophatidic acid, ceramide, sphingosine, sphingosine-1-phosphate, phosphatidylinositol-3 phosphate, and cholesterol, are involved in the activation or regulation of different signaling pathways. Lipid metabolism participates in the regulation of many cellular processes such as cell growth, proliferation, differentiation, survival, apoptosis, inflammation, motility, membrane homeostasis, chemotherapy response, and drug resistance. Bioactive lipid molecules promote apoptosis via the intrinsic pathway by modulating mitochondrial membrane permeability and activating different enzymes including caspases. In this review, we discuss recent data in the fields of lipid metabolism, lipid-mediated apoptosis, and cancer therapy. In conclusion, understanding the underlying molecular mechanism of lipid metabolism and the function of different lipid molecules could provide the basis for cancer cell death rationale, discover novel and potential targets, and develop new anticancer drugs for cancer therapy.
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141
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Pedras MSC, Yaya EE. Plant Chemical Defenses: Are all Constitutive Antimicrobial Metabolites Phytoanticipins? Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A critical perspective on phytoanticipins, constitutive plant secondary metabolites with defensive roles against microbes is presented. This mini-review focuses on the chemical groups and structural types of defensive plant metabolites thus far not reviewed from the phytoanticipin perspective: i) fatty acid derivatives and polyketides, ii) terpenoids, iii) shikimates, phenylpropanoids and derivatives, and iv) benzylisoquinoline and pyrrolizidine alkaloids. The more traditional groups of phytoanticipins are briefly summarized, with particular focus on the latest results: i) benzoxazinoids, ii) cyanogenic glycosides, iii) glucosinolates and their metabolic products, and iv) saponins. Current evidence suggests that a better understanding of the functions of plant metabolites will drive their application to protect crops against microbial diseases.
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Affiliation(s)
- M. Soledade C. Pedras
- Department of Chemistry, 110 Science Place, University of Saskatchewan, Saskatoon, SK S7N 5C9 Canada
| | - Estifanos E. Yaya
- Department of Chemistry, 110 Science Place, University of Saskatchewan, Saskatoon, SK S7N 5C9 Canada
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142
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143
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Zhu X, Liu J, Zhang W. De novo biosynthesis of terminal alkyne-labeled natural products. Nat Chem Biol 2014; 11:115-20. [DOI: 10.1038/nchembio.1718] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 10/21/2014] [Indexed: 11/09/2022]
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144
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Zhou ZF, Menna M, Cai YS, Guo YW. Polyacetylenes of marine origin: chemistry and bioactivity. Chem Rev 2014; 115:1543-96. [PMID: 25525670 DOI: 10.1021/cr4006507] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zhen-Fang Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Zu Chong Zhi Road 555, Shanghai 201203, China
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145
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146
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Kuklev DV, Dembitsky VM. Epoxy acetylenic lipids: Their analogues and derivatives. Prog Lipid Res 2014; 56:67-91. [DOI: 10.1016/j.plipres.2014.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 08/22/2014] [Indexed: 10/24/2022]
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147
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Structure elucidation and cytotoxic evaluation of new polyacetylenes from a marine sponge Petrosia sp. Int J Mol Sci 2014; 15:16511-21. [PMID: 25238415 PMCID: PMC4200862 DOI: 10.3390/ijms150916511] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 09/11/2014] [Accepted: 09/12/2014] [Indexed: 12/01/2022] Open
Abstract
The sponge Petrosia sp. yielded five polyacetylenic compounds (1–5), including two new polyacetylenes, petrosianynes A (1) and B (2). The structures of these compounds were elucidated by detailed spectroscopic analysis and by comparison with the physical and spectral data of related known analogues. Compounds 1–5 exhibited significant cytotoxic activity against a limited panel of cancer cell lines.
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148
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Peñuelas J, Asensio D, Tholl D, Wenke K, Rosenkranz M, Piechulla B, Schnitzler JP. Biogenic volatile emissions from the soil. PLANT, CELL & ENVIRONMENT 2014; 37:1866-91. [PMID: 24689847 DOI: 10.1111/pce.12340] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/10/2014] [Accepted: 03/14/2014] [Indexed: 05/18/2023]
Abstract
Volatile compounds are usually associated with an appearance/presence in the atmosphere. Recent advances, however, indicated that the soil is a huge reservoir and source of biogenic volatile organic compounds (bVOCs), which are formed from decomposing litter and dead organic material or are synthesized by underground living organism or organs and tissues of plants. This review summarizes the scarce available data on the exchange of VOCs between soil and atmosphere and the features of the soil and particle structure allowing diffusion of volatiles in the soil, which is the prerequisite for biological VOC-based interactions. In fact, soil may function either as a sink or as a source of bVOCs. Soil VOC emissions to the atmosphere are often 1-2 (0-3) orders of magnitude lower than those from aboveground vegetation. Microorganisms and the plant root system are the major sources for bVOCs. The current methodology to detect belowground volatiles is described as well as the metabolic capabilities resulting in the wealth of microbial and root VOC emissions. Furthermore, VOC profiles are discussed as non-destructive fingerprints for the detection of organisms. In the last chapter, belowground volatile-based bi- and multi-trophic interactions between microorganisms, plants and invertebrates in the soil are discussed.
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Affiliation(s)
- J Peñuelas
- Global Ecology Unit CREAF-CEAB-CSIC-UAB, CSIC, Catalonia, Spain; CREAF, Catalonia, Spain
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149
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Shih HW, Kamber DN, Prescher JA. Building better bioorthogonal reactions. Curr Opin Chem Biol 2014; 21:103-11. [DOI: 10.1016/j.cbpa.2014.07.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/25/2014] [Accepted: 07/03/2014] [Indexed: 12/31/2022]
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150
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Ross C, Scherlach K, Kloss F, Hertweck C. The Molecular Basis of Conjugated Polyyne Biosynthesis in Phytopathogenic Bacteria. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403344] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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