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Liu Y, Lu Z, Yan Z, Lin A, Han S, Li Y, Yang X, Li X, Yin X, Zhang R, Li K. Sea Cucumber Viscera Contains Novel Non-Holostane-Type Glycoside Toxins that Possess a Putative Chemical Defense Function. J Chem Ecol 2024; 50:185-196. [PMID: 38441803 DOI: 10.1007/s10886-024-01483-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/02/2024] [Accepted: 02/25/2024] [Indexed: 04/25/2024]
Abstract
Sea cucumbers frequently expel their guts in response to predators and an aversive environment, a behavior perceived as releasing repellents involved in chemical defense mechanisms. To investigate the chemical nature of the repellent, the viscera of stressed sea cucumbers (Apostichopus japonicus) in the Yellow Sea of China were collected and chemically analyzed. Two novel non-holostane triterpene glycosides were isolated, and the chemical structures were elucidated as 3ꞵ-O-[ꞵ-D-glucopyranosyl-(1→2)-ꞵ-D-xylopyranosyl]-(20S)-hydroxylanosta-7,25-diene-18(16)-lactone (1) and 3ꞵ-O-[ꞵ-D-quinovopyranosyl-(1→2)-ꞵ-D-xylopyranosyl]-(20S)-hydroxylanosta-7,25-diene-18(16)-lactone (2) by spectroscopic and mass-spectrometric analyses, exemplifying a triterpene glycoside constituent of an oligosaccharide containing two sugar-units and a non-holostane aglycone. Zebrafish embryos were exposed to various doses of 1 and 2 from 4 to 96 hpf. Compound 1 exposure showed 96 h-LC50 41.5 µM and an increased zebrafish mortality rates in roughly in a dose- and time-dependent manner. Compound 2, with different sugar substitution, exhibited no mortality and moderate teratogenic toxicity with a 96 h-EC50 of 173.5 µM. Zebrafish embryos exhibited teratogenic effects, such as reduced hatchability and total body length. The study found that triterpene saponin from A. japonicus viscera had acute toxicity in zebrafish embryos, indicating a potential chemical defense role in the marine ecosystem.
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Affiliation(s)
- Yanfang Liu
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen Lu
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Zhi Yan
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- School of Ocean, Yantai University, Yantai, 264005, China
| | - Ainuo Lin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shaoshuai Han
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, 264209, China
| | - Yaxi Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Yang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaodong Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Xiuli Yin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Ranran Zhang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ke Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China.
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Lourtie A, Eeckhaut I, Mallefet J, Savarino P, Isorez M, Mussoi L, Bischoff H, Delroisse J, Hédouin L, Gerbaux P, Caulier G. Species-specific metabolites mediate host selection and larval recruitment of the symbiotic seastar shrimp. Sci Rep 2023; 13:12674. [PMID: 37542089 PMCID: PMC10403617 DOI: 10.1038/s41598-023-39527-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/26/2023] [Indexed: 08/06/2023] Open
Abstract
In marine environments, host selection, defining how symbiotic organisms recognize and interact with their hosts, is often mediated by olfactory communication. Although adult symbionts may select their hosts detecting chemosensory cues, no information is available concerning the recruitment of symbiotic larvae which is a crucial step to sustain symbioses over generations. This study investigates the olfactory recognition of seastar hosts by adult Zenopontonia soror shrimps and the recruitment of their larvae. We examine the semiochemicals that influence host selection using chemical extractions, behavioural experiments in olfactometers, and mass spectrometry analyses. After describing the symbiotic population and the embryonic development of shrimps, our results demonstrate that asterosaponins, which are traditionally considered as chemical defences in seastars, are species-specific and play a role in attracting the symbiotic shrimps. Adult shrimps were found to be attracted only by their original host species Culcita novaeguineae, while larvae were attracted by different species of seastars. This study provides the first chemical identification of an olfactory cue used by larvae of symbiotic organisms to locate their host for recruitment. These findings highlight the importance of chemical communication in the mediation of symbiotic associations, which has broader significant implications for understanding the ecological dynamics of marine ecosystems.
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Affiliation(s)
- Alexia Lourtie
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium.
- Marine Biology Laboratory, Earth and Life Institute, University UCLouvain, Croix du sud 3/L7.06.04, 1348, Louvain-la-Neuve, Belgium.
| | - Igor Eeckhaut
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
- Belaza Marine Station (IH.SM-UMONS-ULIEGE), Toliara, Madagascar
| | - Jérôme Mallefet
- Marine Biology Laboratory, Earth and Life Institute, University UCLouvain, Croix du sud 3/L7.06.04, 1348, Louvain-la-Neuve, Belgium
| | - Philippe Savarino
- Organic Synthesis and Mass Spectrometry Laboratory, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Mathilde Isorez
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Lisa Mussoi
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Hugo Bischoff
- PSL Research University: EPHE-CNRS-UPVD, USR 3278 CRIOBE, BP 1013, 98729, Papetoai, Mo'orea, French Polynesia
- Laboratoire d'Excellence CORAIL, Mo'orea, French Polynesia
| | - Jérôme Delroisse
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Laetitia Hédouin
- PSL Research University: EPHE-CNRS-UPVD, USR 3278 CRIOBE, BP 1013, 98729, Papetoai, Mo'orea, French Polynesia
- Laboratoire d'Excellence CORAIL, Mo'orea, French Polynesia
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Guillaume Caulier
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium.
- Belaza Marine Station (IH.SM-UMONS-ULIEGE), Toliara, Madagascar.
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Horse Chestnut Saponins-Escins, Isoescins, Transescins, and Desacylescins. Molecules 2023; 28:molecules28052087. [PMID: 36903330 PMCID: PMC10004172 DOI: 10.3390/molecules28052087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Escins constitute an abundant family of saponins (saponosides) and are the most active components in Aesculum hippocastanum (horse chestnut-HC) seeds. They are of great pharmaceutical interest as a short-term treatment for venous insufficiency. Numerous escin congeners (slightly different compositions), as well as numerous regio-and stereo-isomers, are extractable from HC seeds, making quality control trials mandatory, especially since the structure-activity relationship (SAR) of the escin molecules remains poorly described. In the present study, mass spectrometry, microwave activation, and hemolytic activity assays were used to characterize escin extracts (including a complete quantitative description of the escin congeners and isomers), modify the natural saponins (hydrolysis and transesterification) and measure their cytotoxicity (natural vs. modified escins). The aglycone ester groups characterizing the escin isomers were targeted. A complete quantitative analysis, isomer per isomer, of the weight content in the saponin extracts as well as in the seed dry powder is reported for the first time. An impressive 13% in weight of escins in the dry seeds was measured, confirming that the HC escins must be absolutely considered for high-added value applications, provided that their SAR is established. One of the objectives of this study was to contribute to this development by demonstrating that the aglycone ester functions are mandatory for the toxicity of the escin derivative, and that the cytotoxicity also depends on the relative position of the ester functions on the aglycone.
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Nursid M, Patantis G, Oktavia DA, Legistari N, Rahmawati. Comparison of metabolite profiles and cytotoxicity of the black sea cucumber (Holothuria atra) dried with different drying techniques. INTERNATIONAL FOOD RESEARCH JOURNAL 2022. [DOI: 10.47836/ifrj.29.5.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Holothuria atra is a species of sea cucumber that could be a source of cytotoxic compounds. The present work aimed to determine the effect of different drying techniques on the profile of metabolites and cytotoxicity of sea cucumber extracts. Sea cucumbers were dried in the sun for 3 d, and then oven-dried at a temperature of 40, 50, and 60°C for 24 h. Fresh sea cucumbers without drying served as a control. The dried and fresh sea cucumbers were extracted by maceration for 12 h using ethanol. The metabolite profiling was performed using Fourier-transform infrared spectroscopy (FTIR) and high-performance liquid chromatography (HPLC) analyses, whereas the cytotoxicity was assayed by MTT method using the human breast ductal carcinoma cells (T47D). Analyses of FTIR and HPLC showed that the bioactive compounds of the ethanol extract were relatively stable during drying. This was in line with its cytotoxicity against T47D cells, which did not show significant differences between treatments. Based on these results, it was concluded that drying by sun or oven did not damage the bioactive compounds in the ethanolic extract of sea cucumber.
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Navarro del Hierro J, Cantero-Bahillo E, Fernández-Felipe MT, Martin D. Microwave-Assisted Acid Hydrolysis vs. Conventional Hydrolysis to Produce Sapogenin-Rich Products from Fenugreek Extracts. Foods 2022; 11:foods11131934. [PMID: 35804750 PMCID: PMC9266256 DOI: 10.3390/foods11131934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 02/04/2023] Open
Abstract
The acid hydrolysis of saponins is commonly performed by conventional heating to produce sapogenin-rich products of bioactive interest, but alternative hydrolysis methods and their impact on bioactivity have been unexplored. We compared the conventional method with microwave-assisted acid hydrolysis (MAAH) of a commercial saponin-rich extract from a typical saponin source, fenugreek, focusing on the study of temperature (100, 120, 130, 140, 150 °C) and time (10, 20, 30, 40 min) of hydrolysis. The impact of these factors was assayed on both the sapogenin yield and the bioactivity of the hydrolyzed products, specifically their antioxidant and lipase inhibitory activities. The highest sapogenin content (34 g/100 g extract) was achieved by MAAH at 140 °C and 30 min, which was higher than conventional hydrolysis at both reference conditions (100 °C, 60 min, 24.6 g/100 g extract) and comparative conditions (140 °C, 30 min, 17 g/100 g extract) (p < 0.001). Typical steroid artifacts from sapogenins were observed in very small amounts, regardless of the method of hydrolysis. Antioxidant activity of MAAH hydrolyzed extracts (around 80% DPPH inhibition) was barely affected by time and temperature, but pancreatic lipase inhibitory activity was higher (>65%) at lower MAAH temperature (<130 °C) and time (<30 min) of hydrolysis. MAAH is shown as a valid alternative to produce selective sapogenin-rich extracts from fenugreek with minor impact on their bioactivities, and whose magnitude can be modulated by the hydrolysis conditions.
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Affiliation(s)
- Joaquin Navarro del Hierro
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC–UAM), 28049 Madrid, Spain; (J.N.d.H.); (E.C.-B.); (M.T.F.-F.)
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Emma Cantero-Bahillo
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC–UAM), 28049 Madrid, Spain; (J.N.d.H.); (E.C.-B.); (M.T.F.-F.)
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - M. Teresa Fernández-Felipe
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC–UAM), 28049 Madrid, Spain; (J.N.d.H.); (E.C.-B.); (M.T.F.-F.)
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Diana Martin
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC–UAM), 28049 Madrid, Spain; (J.N.d.H.); (E.C.-B.); (M.T.F.-F.)
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Correspondence: ; Tel.: +34-91-001-7930
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Savarino P, Contino C, Colson E, Cabrera-Barjas G, De Winter J, Gerbaux P. Impact of the Hydrolysis and Methanolysis of Bidesmosidic Chenopodium quinoa Saponins on Their Hemolytic Activity. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103211. [PMID: 35630692 PMCID: PMC9144749 DOI: 10.3390/molecules27103211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/22/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
Abstract
Saponins are specific metabolites abundantly present in plants and several marine animals. Their high cytotoxicity is associated with their membranolytic properties, i.e., their propensity to disrupt cell membranes upon incorporation. As such, saponins are highly attractive for numerous applications, provided the relation between their molecular structures and their biological activities is understood at the molecular level. In the present investigation, we focused on the bidesmosidic saponins extracted from the quinoa husk, whose saccharidic chains are appended on the aglycone via two different linkages, a glycosidic bond, and an ester function. The later position is sensitive to chemical modifications, such as hydrolysis and methanolysis. We prepared and characterized three sets of saponins using mass spectrometry: (i) bidesmosidic saponins directly extracted from the ground husk, (ii) monodesmosidic saponins with a carboxylic acid group, and (iii) monodesmosidic saponins with a methyl ester function. The impact of the structural modifications on the membranolytic activity of the saponins was assayed based on the determination of their hemolytic activity. The natural bidesmosidic saponins do not present any hemolytic activity even at the highest tested concentration (500 µg·mL−1). Hydrolyzed saponins already degrade erythrocytes at 20 µg·mL−1, whereas 100 µg·mL−1 of transesterified saponins is needed to induce detectable activity. The observation that monodesmosidic saponins, hydrolyzed or transesterified, are much more active against erythrocytes than the bidesmosidic ones confirms that bidesmosidic saponins are likely to be the dormant form of saponins in plants. Additionally, the observation that negatively charged saponins, i.e., the hydrolyzed ones, are more hemolytic than the neutral ones could be related to the red blood cell membrane structure.
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Affiliation(s)
- Philippe Savarino
- Organic Synthesis and Mass Spectrometry Laboratory (S²MOs), University of Mons—UMONS, 23 Place du Parc, 7000 Mons, Belgium; (P.S.); (C.C.); (E.C.); (J.D.W.)
| | - Carolina Contino
- Organic Synthesis and Mass Spectrometry Laboratory (S²MOs), University of Mons—UMONS, 23 Place du Parc, 7000 Mons, Belgium; (P.S.); (C.C.); (E.C.); (J.D.W.)
| | - Emmanuel Colson
- Organic Synthesis and Mass Spectrometry Laboratory (S²MOs), University of Mons—UMONS, 23 Place du Parc, 7000 Mons, Belgium; (P.S.); (C.C.); (E.C.); (J.D.W.)
| | - Gustavo Cabrera-Barjas
- Unidad de Desarrollo Tecnológico (UDT), Universidad de Concepción, Av. Cordillera 2634, Parque Industrial Coronel, Concepción 4030000, Región del Bío Bío, Chile;
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S²MOs), University of Mons—UMONS, 23 Place du Parc, 7000 Mons, Belgium; (P.S.); (C.C.); (E.C.); (J.D.W.)
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory (S²MOs), University of Mons—UMONS, 23 Place du Parc, 7000 Mons, Belgium; (P.S.); (C.C.); (E.C.); (J.D.W.)
- Correspondence:
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Popov RS, Ivanchina NV, Dmitrenok PS. Application of MS-Based Metabolomic Approaches in Analysis of Starfish and Sea Cucumber Bioactive Compounds. Mar Drugs 2022; 20:md20050320. [PMID: 35621972 PMCID: PMC9147407 DOI: 10.3390/md20050320] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/11/2022] [Accepted: 05/11/2022] [Indexed: 12/12/2022] Open
Abstract
Today, marine natural products are considered one of the main sources of compounds for drug development. Starfish and sea cucumbers are potential sources of natural products of pharmaceutical interest. Among their metabolites, polar steroids, triterpene glycosides, and polar lipids have attracted a great deal of attention; however, studying these compounds by conventional methods is challenging. The application of modern MS-based approaches can help to obtain valuable information about such compounds. This review provides an up-to-date overview of MS-based applications for starfish and sea cucumber bioactive compounds analysis. While describing most characteristic features of MS-based approaches in the context of starfish and sea cucumber metabolites, including sample preparation and MS analysis steps, the present paper mainly focuses on the application of MS-based metabolic profiling of polar steroid compounds, triterpene glycosides, and lipids. The application of MS in metabolomics studies is also outlined.
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Affiliation(s)
- Roman S. Popov
- Correspondence: (R.S.P.); (P.S.D.); Tel.: +7-423-231-1132 (P.S.D.)
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