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Fagbohun OF, Thilakarathna WPDW, Zhou J, Lehmann C, Jiao G, Rupasinghe HPV. Sea Cucumber and Blueberry Extracts Suppress Inflammation and Reduce Acute Lung Injury through the Regulation of NF-κB/MAPK/JNK Signaling Pathway in Lipopolysaccharide-Treated C57BL/6 Mice. Molecules 2024; 29:1511. [PMID: 38611791 PMCID: PMC11013731 DOI: 10.3390/molecules29071511] [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: 02/11/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Acute lung injury (ALI) represents a life-threatening condition with high morbidity and mortality despite modern mechanical ventilators and multiple pharmacological strategies. Therefore, there is a need to develop efficacious interventions with minimal side effects. The anti-inflammatory activities of sea cucumber (Cucumaria frondosa) and wild blueberry (Vaccinium angustifolium) extracts have been reported recently. However, their anti-inflammatory activities and the mechanism of action against ALI are not fully elucidated. Thus, the present study aims to understand the mechanism of the anti-inflammatory activity of sea cucumber and wild blueberry extracts in the context of ALI. Experimental ALI was induced via intranasal lipopolysaccharide (LPS) instillation in C57BL/6 mice and the anti-inflammatory properties were determined by cytokine analysis, histological examination, western blot, and qRT-PCR. The results showed that oral supplementation of sea cucumber extracts repressed nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways, thereby downregulating the expression of interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF) in the lung tissue and in the plasma. Wild blueberry extracts also suppressed the expression of IL-4. Furthermore, the combination of sea cucumber and wild blueberry extracts restrained MAPK signaling pathways by prominent attenuation of phosphorylation of NF-κB, c-Jun N-terminal kinase (JNK), and extracellular signal-regulated kinase (ERK) while the levels of pro-inflammatory cytokines were significantly suppressed. Moreover, there was a significant and synergistic reduction in varying degrees of ALI lesions such as distorted parenchyma, increased alveoli thickness, lymphocyte and neutrophil infiltrations, fibrin deposition, pulmonary emphysema, pneumonia, intra-alveolar hemorrhage, and edema. The anti-inflammatory effect of the combination of sea cucumber and wild blueberry extracts is associated with suppressing MAPK and NF-κB signaling pathways, thereby significantly reducing cytokine storm in LPS-induced experimental ALI.
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Affiliation(s)
- Oladapo F. Fagbohun
- Department Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada; (O.F.F.); (W.P.D.W.T.)
- Department of Biology, Center for Agriculture and Sciences, Wilmington College, 1870 Quaker Way, Wilmington, OH 45177, USA
| | - Wasitha P. D. W. Thilakarathna
- Department Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada; (O.F.F.); (W.P.D.W.T.)
| | - Juan Zhou
- Departments of Anaesthesia, Pain Management and Perioperative Medicine, Physiology and Biophysics, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada; (J.Z.); (C.L.)
| | - Christian Lehmann
- Departments of Anaesthesia, Pain Management and Perioperative Medicine, Physiology and Biophysics, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada; (J.Z.); (C.L.)
| | - Guangling Jiao
- Department of Process Engineering and Applied Science, Faculty of Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada;
| | - H. P. Vasantha Rupasinghe
- Department Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada; (O.F.F.); (W.P.D.W.T.)
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada
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Sales S, Lourenço HM, Bandarra NM, Afonso C, Matos J, Botelho MJ, Pessoa MF, Félix PM, Veronez A, Cardoso C. How Biological Activity in Sea Cucumbers Changes as a Function of Species and Tissue. Foods 2023; 13:35. [PMID: 38201062 PMCID: PMC10778530 DOI: 10.3390/foods13010035] [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: 12/03/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Biological activity and bioactive compound content in sea cucumbers was assessed, considering Parastichopus regalis, Holothuria mammata, Holothuria forskali, and Holothuria arguinensis as species and intestine, muscle band, respiratory tree, body wall, and gonads as tissues. P. regalis had the lowest content in phenolic compounds and antioxidant activity in contrast to Holothuria species. In the respiratory tree, the highest phenolic concentration was recorded in H. arguinensis, 76.4 ± 1.2 mg GAE/100 g dw vs. 21.0-49.0 mg GAE/100 g dw in the other species. H. arguinensis had the highest DPPH and FRAP results in the gonads, 13.6 ± 0.7 mg AAE/100 g dw vs. 2.6-3.5 mg AAE/100 g dw and 27.1 ± 0.3 μmol Fe2+/g dw vs. 8.0-15.9 μmol Fe2+/g dw, respectively. Overall, P. regalis biomass presented the highest anti-inflammatory activity levels and H. arguinensis the lowest anti-inflammatory levels. The respiratory tree was the most anti-inflammatory (measured by the inhibition of cyclooxygenase-2, COX-2) tissue in H. mammata and H. forskali (also the muscle band in this case), 76.3 ± 6.3% and 59.5 ± 3.6% COX-2 inhibition in 1 mg/mL aqueous extracts, respectively. The results demonstrated a variable bioactive potential and advantage in targeting antioxidant properties in the muscle band and anti-inflammatory activity in the respiratory tree, which may constitute a starting point for a biorefinery approach envisaging multiple applications.
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Affiliation(s)
- Sabrina Sales
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Rua Alfredo Magalhães Ramalho 6, 1495-006 Lisbon, Portugal; (S.S.); (H.M.L.); (N.M.B.); (C.A.); (J.M.)
- Division of Oceanography and Marine Environment (DivOA), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), 1495-165 Lisbon, Portugal;
- GeoBioTec, Department of Earth Sciences, Faculty of Science and Technology (UNL), Largo da Torre, 2829-516 Caparica, Portugal;
| | - Helena M. Lourenço
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Rua Alfredo Magalhães Ramalho 6, 1495-006 Lisbon, Portugal; (S.S.); (H.M.L.); (N.M.B.); (C.A.); (J.M.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Narcisa M. Bandarra
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Rua Alfredo Magalhães Ramalho 6, 1495-006 Lisbon, Portugal; (S.S.); (H.M.L.); (N.M.B.); (C.A.); (J.M.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Cláudia Afonso
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Rua Alfredo Magalhães Ramalho 6, 1495-006 Lisbon, Portugal; (S.S.); (H.M.L.); (N.M.B.); (C.A.); (J.M.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Joana Matos
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Rua Alfredo Magalhães Ramalho 6, 1495-006 Lisbon, Portugal; (S.S.); (H.M.L.); (N.M.B.); (C.A.); (J.M.)
| | - Maria João Botelho
- Division of Oceanography and Marine Environment (DivOA), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), 1495-165 Lisbon, Portugal;
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Maria Fernanda Pessoa
- GeoBioTec, Department of Earth Sciences, Faculty of Science and Technology (UNL), Largo da Torre, 2829-516 Caparica, Portugal;
| | - Pedro M. Félix
- MARE—Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, Faculty of Sciences, University of Lisbon, 1749-017 Lisbon, Portugal;
| | - Arthur Veronez
- Centre for Functional Ecology—Science for People & the Planet, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal;
| | - Carlos Cardoso
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, IP), Rua Alfredo Magalhães Ramalho 6, 1495-006 Lisbon, Portugal; (S.S.); (H.M.L.); (N.M.B.); (C.A.); (J.M.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
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Savarino P, Demeyer M, Decroo C, Colson E, Gerbaux P. Mass spectrometry analysis of saponins. MASS SPECTROMETRY REVIEWS 2023; 42:954-983. [PMID: 34431118 DOI: 10.1002/mas.21728] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/13/2021] [Accepted: 08/09/2021] [Indexed: 05/26/2023]
Abstract
Saponins are amphiphilic molecules of pharmaceutical interest and most of their biological activities (i.e., cytotoxic, hemolytic, fungicide, etc.) are associated to their membranolytic properties. These molecules are secondary metabolites present in numerous plants and in some marine animals, such as sea cucumbers and starfishes. Structurally, all saponins correspond to the combination of a hydrophilic glycan, consisting of sugar chain(s), linked to a hydrophobic triterpenoidic or steroidic aglycone, named the sapogenin. Saponins present a high structural diversity and their structural characterization remains extremely challenging. Ideally, saponin structures are best established using nuclear magnetic resonance experiments conducted on isolated molecules. However, the extreme structural diversity of saponins makes them challenging from a structural analysis point of view since, most of the time, saponin extracts consist in a huge number of congeners presenting only subtle structural differences. In the present review, we wish to offer an overview of the literature related to the development of mass spectrometry for the study of saponins. This review will demonstrate that most of the past and current mass spectrometry methods, including electron, electrospray and matrix-assisted laser desorption/ionization ionizations, gas/liquid chromatography coupled to (tandem) mass spectrometry, collision-induced dissociation including MS3 experiments, multiple reaction monitoring based quantification, ion mobility experiments, and so forth, have been used for saponin investigations with great success on enriched extracts but also directly on tissues using imaging methods.
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Affiliation(s)
- Philippe Savarino
- Organic Synthesis and Mass Spectrometry Laboratory, Biosciences Research Institute, University of Mons-UMONS, Mons, Belgium
| | - Marie Demeyer
- Organic Synthesis and Mass Spectrometry Laboratory, Biosciences Research Institute, University of Mons-UMONS, Mons, Belgium
| | - Corentin Decroo
- Organic Synthesis and Mass Spectrometry Laboratory, Biosciences Research Institute, University of Mons-UMONS, Mons, Belgium
| | - Emmanuel Colson
- Organic Synthesis and Mass Spectrometry Laboratory, Biosciences Research Institute, University of Mons-UMONS, Mons, Belgium
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory, Biosciences Research Institute, University of Mons-UMONS, Mons, Belgium
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Majnooni MB, Fakhri S, Ghanadian SM, Bahrami G, Mansouri K, Iranpanah A, Farzaei MH, Mojarrab M. Inhibiting Angiogenesis by Anti-Cancer Saponins: From Phytochemistry to Cellular Signaling Pathways. Metabolites 2023; 13:metabo13030323. [PMID: 36984763 PMCID: PMC10052344 DOI: 10.3390/metabo13030323] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/06/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023] Open
Abstract
Saponins are one of the broadest classes of high-molecular-weight natural compounds, consisting mainly of a non-polar moiety with 27 to 30 carbons and a polar moiety containing sugars attached to the sapogenin structure. Saponins are found in more than 100 plant families as well as found in marine organisms. Saponins have several therapeutic effects, including their administration in the treatment of various cancers. These compounds also reveal noteworthy anti-angiogenesis effects as one of the critical strategies for inhibiting cancer growth and metastasis. In this study, a comprehensive review is performed on electronic databases, including PubMed, Scopus, ScienceDirect, and ProQuest. Accordingly, the structural characteristics of triterpenoid/steroid saponins and their anti-cancer effects were highlighted, focusing on their anti-angiogenic effects and related mechanisms. Consequently, the anti-angiogenic effects of saponins, inhibiting the expression of genes related to vascular endothelial growth factor (VEGF) and hypoxia-inducible factor 1-α (HIF-1α) are two main anti-angiogenic mechanisms of triterpenoid and steroidal saponins. The inhibition of inflammatory signaling pathways that stimulate angiogenesis, such as pro-inflammatory cytokines, mitogen-activated protein kinase (MAPKs), and phosphoinositide 3-kinases/protein kinase B (PI3K/Akt), are other anti-angiogenic mechanisms of saponins. Furthermore, the anti-angiogenic and anti-cancer activity of saponins was closely related to the binding site of the sugar moiety, the type and number of their monosaccharide units, as well as the presence of some functional groups in their aglycone structure. Therefore, saponins are suitable candidates for cancer treatment by inhibiting angiogenesis, for which extensive pre-clinical and comprehensive clinical trial studies are recommended.
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Affiliation(s)
- Mohammad Bagher Majnooni
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah 6714415153, Iran
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Syed Mustafa Ghanadian
- Department of Pharmacognosy, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Gholamreza Bahrami
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Kamran Mansouri
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6714415185, Iran
| | - Amin Iranpanah
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
- Correspondence: or (M.H.F.); (M.M.); Tel.: +98-08334266780 (M.M.)
| | - Mahdi Mojarrab
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
- Correspondence: or (M.H.F.); (M.M.); Tel.: +98-08334266780 (M.M.)
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Puspitasari YE, Tuenter E, Foubert K, Herawati H, Hariati AM, Aulanni’am A, Pieters L, De Bruyne T, Hermans N. Saponin and Fatty Acid Profiling of the Sea Cucumber Holothuria atra, α-Glucosidase Inhibitory Activity and the Identification of a Novel Triterpene Glycoside. Nutrients 2023; 15:nu15041033. [PMID: 36839391 PMCID: PMC9960930 DOI: 10.3390/nu15041033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/26/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Saponin-rich sea cucumber extracts have shown antidiabetic effects in a few reports. Although the triterpene glycosides of sea cucumbers are commonly isolated from their Cuvierian tubules, these are absent in Holothuria atra Jaeger. Therefore, this study intended to investigate the saponin profile in the body wall of H. atra, as well as to assess the α-glucosidase inhibitory activity of the H. atra extracts. The chemical profiling of sea cucumber extracts was conducted by UPLC-HRMS analysis. This resulted in the tentative identification of 11 compounds, 7 of which have not been reported in the H. Atra body wall before. Additionally, two triterpene glycosides were purified and their structures were elucidated based on HRMS and NMR data: desholothurin B (1), and a novel epimer, 12-epi-desholothurin B (2). Moreover, the fatty acid profile of the H. atra body wall was investigated by GC-MS. It was found that the Me90 fraction of the H. atra body wall showed the strongest α-glucosidase inhibitory activity (IC50 value 0.158 ± 0.002 mg/mL), thus making it more potent than acarbose (IC50 value 2.340 ± 0.044 mg/mL).
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Affiliation(s)
- Yunita Eka Puspitasari
- Natural Products and Food Research & Analysis—Pharmaceutical Technology (NatuRAPT), University of Antwerp, 2610 Antwerpen, Belgium
- Department of Fish Product Technology, Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, Malang 65149, Indonesia
- Doctoral Program of Environmental Studies, Postgraduate School, Universitas Brawijaya, Malang 65145, Indonesia
- Correspondence: (Y.E.P.); (N.H.)
| | - Emmy Tuenter
- Natural Products and Food Research & Analysis—Pharmaceutical Technology (NatuRAPT), University of Antwerp, 2610 Antwerpen, Belgium
| | - Kenn Foubert
- Natural Products and Food Research & Analysis—Pharmaceutical Technology (NatuRAPT), University of Antwerp, 2610 Antwerpen, Belgium
| | - Herawati Herawati
- Faculty of Veterinary Medicine, Universitas Brawijya, Malang 65145, Indonesia
| | - Anik Martinah Hariati
- Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, Malang 65145, Indonesia
| | - Aulanni’am Aulanni’am
- Biochemistry Laboratory, Faculty of Sciences, Universitas Brawijaya, Malang 65145, Indonesia
| | - Luc Pieters
- Natural Products and Food Research & Analysis—Pharmaceutical Technology (NatuRAPT), University of Antwerp, 2610 Antwerpen, Belgium
| | - Tess De Bruyne
- Natural Products and Food Research & Analysis—Pharmaceutical Technology (NatuRAPT), University of Antwerp, 2610 Antwerpen, Belgium
| | - Nina Hermans
- Natural Products and Food Research & Analysis—Pharmaceutical Technology (NatuRAPT), University of Antwerp, 2610 Antwerpen, Belgium
- Correspondence: (Y.E.P.); (N.H.)
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De novo genome assembly and annotation of Holothuria scabra (Jaeger, 1833) from nanopore sequencing reads. Genes Genomics 2022; 44:1487-1498. [DOI: 10.1007/s13258-022-01322-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 09/29/2022] [Indexed: 11/04/2022]
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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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Nga NT, Phuong DT, Cuc NT, Phuong TH, Huong PTM, Cuong NX, Huu Tai B, Van Kiem P, Thao DT. Nanoliposomal Cercodemasoide A and Its Improved Activities Against NTERA-2 Cancer Stem Cells. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20982108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Recently, saponins derived from marine sources have received much attention because of their promising bioactivities, such as anticancer, anti-angiogenesis, and anti-inflammation. In particular, a triterpene saponin from the sea cucumber Cercodemas anceps Selenka, cercodemasoide A (CAN1), showed potent cytotoxicity against various cancer cell lines. Recent evidence has indicated that cancer stem cells (CSCs) could be a novel target for efficient cancer therapies. In order to improve the biopharmaceutical properties of CAN1, the compound was loaded into nanoliposomes as an ideal drug carrier. CAN1 was successfully incorporated into nanoliposomes as small unilamellar liposome vesicles with an average size of 73.39 ± 1.57 nm, zeta potential of −0.299 ± 0.046 mV, polydispersity index of 0.336 ± 0.038, and with an encapsulation efficiency of up to 62.9%. For the first time, CAN1 and its nanoliposomal forms have been shown to have a promising cytotoxic activity against NTERA-2 CSCs, with half-maximal inhibitory concentration (IC50) =1.03 ± 0.04 and 0.41 ± 0.03 µM, respectively. The CAN1 nanoliposomes also presented significantly improved activities in suppressing the growth of NTERA-2 3-dimensional tumorspheres (IC50 = 1.71 ± 0.06 µM) in comparison with the free form ( P < .05). The anti-CSC effects of CAN1 nanoliposomes on NTERA-2 cells were due to their apoptotic induction through enhancing caspase-3 activity (more than 2-fold) and arresting the cell cycle at the S phase ( P < .05). The obtained CAN1-encapsulated nanoliposomes suggest valuable applications in CSC-targeting treatment for more efficient clinical therapy.
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Affiliation(s)
- Nguyen Thi Nga
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Do Thi Phuong
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Cuc
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Trieu Ha Phuong
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Pham Thi Mai Huong
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry VAST, Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry VAST, Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry VAST, Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Do Thi Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology VAST, Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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Cañon-Jones H, Cortes H, Castillo-Ruiz M, Schlotterbeck T, San Martín R. Quillaja saponaria (Molina) Extracts Inhibits In Vitro Piscirickettsia salmonis Infections. Animals (Basel) 2020; 10:E2286. [PMID: 33287333 PMCID: PMC7761688 DOI: 10.3390/ani10122286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 12/26/2022] Open
Abstract
P. salmonis infections are the cause of major bacterial disease in salmonids in Chile, and the reason for using more antibiotics compared to other salmon-producing countries. Vaccination and antibiotics have not been efficient and new approaches are needed. The safety of Quillaja saponaria extracts was measured by cytotoxicity using flow cytometry of cytopathic and death of fish cell cultures and efficacy was assessed using in vitro infection models with pathogenic P. salmonis. Cytotoxicity was low and control of in vitro infections was achieved with all products, with protection of over 90%. Minimum inhibitory concentrations were much higher than those in the infection using cell cultures. These results suggest a dual mechanism of action where less purified extracts with a combination of saponin and non-saponin components simultaneously decrease P. salmonis infection while protecting cell lines, rather than exerting a direct antimicrobial effect. Quillaja saponins controlled in vitro infections with P. salmonis and could be considered good candidates for a new, safe and sustainable method of controlling fish bacterial infectious diseases.
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Affiliation(s)
- Hernán Cañon-Jones
- Núcleo de Investigación Aplicada en Ciencias Veterinarias y Agronómicas, Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Santiago 7500975, Chile
| | | | - Mario Castillo-Ruiz
- Escuela de Química y Farmacia, Facultad de Medicina, Universidad Andres Bello, Santiago 8370146, Chile;
- Departamento de Ciencias Químicas y Biológicas, Facultad de Ciencias de la Salud, Universidad Bernardo O Higgins, Santiago 8370993, Chile
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Cao Q, Zhao J, Xing M, Xiao H, Zhang Q, Liang H, Ji A, Song S. Current Research Landscape of Marine-Derived Anti-Atherosclerotic Substances. Mar Drugs 2020; 18:md18090440. [PMID: 32854344 PMCID: PMC7551282 DOI: 10.3390/md18090440] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 12/18/2022] Open
Abstract
Atherosclerosis is a chronic disease characterized by lipid accumulation and chronic inflammation of the arterial wall, which is the pathological basis for coronary heart disease, cerebrovascular disease and thromboembolic disease. Currently, there is a lack of low-cost therapeutic agents that effectively slow the progression of atherosclerosis. Therefore, the development of new drugs is urgently needed. The research and development of marine-derived drugs have gained increasing interest from researchers across the world. Many marine organisms provide a rich material basis for the development of atherosclerotic drugs. This review focuses on the latest technological advances in the structures and mechanisms of action of marine-derived anti-atherosclerotic substances and the challenges of the application of these substances including marine polysaccharides, proteins and peptides, polyunsaturated fatty acids and small molecule compounds. Here, we describe the theoretical basis of marine biological resources in the treatment of atherosclerosis.
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Affiliation(s)
- Qi Cao
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Jiarui Zhao
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Maochen Xing
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Han Xiao
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Qian Zhang
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Hao Liang
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
| | - Aiguo Ji
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
- Correspondence: (A.J.); (S.S.)
| | - Shuliang Song
- Marine College, Shandong University, Weihai 264209, China; (Q.C.); (J.Z.); (M.X.); (H.X.); (Q.Z.); (H.L.)
- Correspondence: (A.J.); (S.S.)
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11
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Marine Terpenoids from Polar Latitudes and Their Potential Applications in Biotechnology. Mar Drugs 2020; 18:md18080401. [PMID: 32751369 PMCID: PMC7459527 DOI: 10.3390/md18080401] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 01/03/2023] Open
Abstract
Polar marine biota have adapted to thrive under one of the ocean’s most inhospitable scenarios, where extremes of temperature, light photoperiod and ice disturbance, along with ecological interactions, have selected species with a unique suite of secondary metabolites. Organisms of Arctic and Antarctic oceans are prolific sources of natural products, exhibiting wide structural diversity and remarkable bioactivities for human applications. Chemical skeletons belonging to terpene families are the most commonly found compounds, whereas cytotoxic antimicrobial properties, the capacity to prevent infections, are the most widely reported activities from these environments. This review firstly summarizes the regulations on access and benefit sharing requirements for research in polar environments. Then it provides an overview of the natural product arsenal from Antarctic and Arctic marine organisms that displays promising uses for fighting human disease. Microbes, such as bacteria and fungi, and macroorganisms, such as sponges, macroalgae, ascidians, corals, bryozoans, echinoderms and mollusks, are the main focus of this review. The biological origin, the structure of terpenes and terpenoids, derivatives and their biotechnological potential are described. This survey aims to highlight the chemical diversity of marine polar life and the versatility of this group of biomolecules, in an effort to encourage further research in drug discovery.
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12
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Kamyab E, Goebeler N, Kellermann MY, Rohde S, Reverter M, Striebel M, Schupp PJ. Anti-Fouling Effects of Saponin-Containing Crude Extracts from Tropical Indo-Pacific Sea Cucumbers. Mar Drugs 2020; 18:E181. [PMID: 32244281 PMCID: PMC7231054 DOI: 10.3390/md18040181] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 12/21/2022] Open
Abstract
Sea cucumbers are bottom dwelling invertebrates, which are mostly found on subtropical and tropical sea grass beds, sandy reef flats, or reef slopes. Although constantly exposed to fouling communities in these habitats, many species are surprisingly free of invertebrate epibionts and microfouling algae such as diatoms. In our study, we investigated the anti-fouling (AF) activities of different crude extracts of tropical Indo-Pacific sea cucumber species against the fouling diatom Cylindrotheca closterium. Nine sea cucumber species from three genera (i.e., Holothuria, Bohadschia, Actinopyga) were selected and extracted to assess their AF activities. To verify whether the sea cucumber characteristic triterpene glycosides were responsible for the observed potent AF activities, we tested purified fractions enriched in saponins isolated from Bohadschia argus, representing one of the most active anti-fouling extracts. Saponins were quantified by vanillin-sulfuric acid colorimetric assays and identified by LC-MS and LC-MS/MS analyses. We were able to demonstrate that AF activities in sea cucumber extracts were species-specific, and growth inhibition as well as attachment of the diatom to surfaces is dependent on the saponin concentration (i.e., Actinopyga contained the highest quantities), as well as on the molecular composition and structure of the present saponins (i.e., Bivittoside D derivative was the most bioactive compound). In conclusion, the here performed AF assay represents a promising and fast method for selecting the most promising bioactive organism as well as for identifying novel compounds with potent AF activities for the discovery of potentially novel pharmacologically active natural products.
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Affiliation(s)
- Elham Kamyab
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany; (N.G.); (M.Y.K.); (S.R.); (M.R.); (M.S.)
| | - Norman Goebeler
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany; (N.G.); (M.Y.K.); (S.R.); (M.R.); (M.S.)
- Tvärminne Zoological Station, University of Helsinki, J.A. Palmènin tie 260, 10900 Hanko, Finland
| | - Matthias Y. Kellermann
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany; (N.G.); (M.Y.K.); (S.R.); (M.R.); (M.S.)
| | - Sven Rohde
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany; (N.G.); (M.Y.K.); (S.R.); (M.R.); (M.S.)
| | - Miriam Reverter
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany; (N.G.); (M.Y.K.); (S.R.); (M.R.); (M.S.)
| | - Maren Striebel
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany; (N.G.); (M.Y.K.); (S.R.); (M.R.); (M.S.)
| | - Peter J. Schupp
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany; (N.G.); (M.Y.K.); (S.R.); (M.R.); (M.S.)
- Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB), Ammerländer Heerstrasse 231, D-26129 Oldenburg, Germany
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13
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Decroo C, Colson E, Lemaur V, Caulier G, De Winter J, Cabrera-Barjas G, Cornil J, Flammang P, Gerbaux P. Ion mobility mass spectrometry of saponin ions. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33 Suppl 2:22-33. [PMID: 29873851 DOI: 10.1002/rcm.8193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/25/2018] [Accepted: 05/28/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Corentin Decroo
- Organic Synthesis and Mass Spectrometry Lab, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons - UMONS, 23 Place du Parc, B-7000, Mons, Belgium
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, Research Institute for Science and Engineering of Materials, University of Mons - UMONS, 23 Place du Parc, 7000, Mons, Belgium
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons - UMONS, 23 Place du Parc, B-7000, Mons, Belgium
| | - Emmanuel Colson
- Organic Synthesis and Mass Spectrometry Lab, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons - UMONS, 23 Place du Parc, B-7000, Mons, Belgium
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons - UMONS, 23 Place du Parc, B-7000, Mons, Belgium
| | - Vincent Lemaur
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, Research Institute for Science and Engineering of Materials, 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, B-7000, Mons, Belgium
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Lab, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons - UMONS, 23 Place du Parc, B-7000, Mons, Belgium
| | - Gustavo Cabrera-Barjas
- Unit for Technology Development (UDT), University of Concepción, Av. Cordillera 2634, Parque Industrial Coronel, P.O. Box 4051 mail 3, Coronel, Región del Bío Bío, Chile
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, Research Institute for Science and Engineering of Materials, University of Mons - UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Patrick Flammang
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons - UMONS, 23 Place du Parc, B-7000, Mons, Belgium
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Lab, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons - UMONS, 23 Place du Parc, B-7000, Mons, Belgium
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14
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Claereboudt EJS, Caulier G, Decroo C, Colson E, Gerbaux P, Claereboudt MR, Schaller H, Flammang P, Deleu M, Eeckhaut I. Triterpenoids in Echinoderms: Fundamental Differences in Diversity and Biosynthetic Pathways. Mar Drugs 2019; 17:E352. [PMID: 31200494 PMCID: PMC6627624 DOI: 10.3390/md17060352] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/30/2019] [Accepted: 06/04/2019] [Indexed: 02/03/2023] Open
Abstract
Echinoderms form a remarkable phylum of marine invertebrates that present specific chemical signatures unique in the animal kingdom. It is particularly the case for essential triterpenoids that evolved separately in each of the five echinoderm classes. Indeed, while most animals have Δ5-sterols, sea cucumbers (Holothuroidea) and sea stars (Asteroidea) also possess Δ7 and Δ9(11)-sterols, a characteristic not shared with brittle stars (Ophiuroidea), sea urchins (Echinoidea), and crinoids (Crinoidea). These particular Δ7 and Δ9(11) sterols emerged as a self-protection against membranolytic saponins that only sea cucumbers and sea stars produce as a defense mechanism. The diversity of saponins is large; several hundred molecules have been described in the two classes of these saponins (i.e., triterpenoid or steroid saponins). This review aims to highlight the diversity of triterpenoids in echinoderms by focusing on sterols and triterpenoid glycosides, but more importantly to provide an updated view of the biosynthesis of these molecules in echinoderms.
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Affiliation(s)
- Emily J S Claereboudt
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
- Laboratory of molecular biophysics of interfaces, Gembloux Agro-Bio Tech, University of Liege, 5030 Gembloux, Belgium.
| | - Guillaume Caulier
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
| | - Corentin Decroo
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
- Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
| | - Emmanuel Colson
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
- Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
| | - Michel R Claereboudt
- Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, 123 Al-Khod, Oman.
| | - Hubert Schaller
- Institut de Biologie Moléculaire des Plantes du CNRS, Université de Strasbourg, 67084 Strasbourg Cedex, France.
| | - Patrick Flammang
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
| | - Magali Deleu
- Laboratory of molecular biophysics of interfaces, Gembloux Agro-Bio Tech, University of Liege, 5030 Gembloux, Belgium.
| | - Igor Eeckhaut
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 7000 Mons, Belgium.
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15
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Abstract
Covering 2014. Previous review: Nat. Prod. Rep., 2017, 34, 90-122 This review covers the isolation and structure determination of triterpenoids reported during 2014 including squalene derivatives, lanostanes, holostanes, cycloartanes, cucurbitanes, dammaranes, euphanes, tirucallanes, tetranortriterpenoids, quassinoids, lupanes, oleananes, friedelanes, ursanes, hopanes, serratanes, isomalabaricanes and saponins; 374 references are cited.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow, UK G12 8QQ.
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16
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Distribution of Saponins in the Sea Cucumber Holothuria lessoni; the Body Wall Versus the Viscera, and Their Biological Activities. Mar Drugs 2018; 16:md16110423. [PMID: 30388793 PMCID: PMC6266130 DOI: 10.3390/md16110423] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 10/21/2018] [Accepted: 10/23/2018] [Indexed: 12/29/2022] Open
Abstract
Sea cucumbers are an important ingredient of traditional folk medicine in many Asian countries, which are well-known for their medicinal, nutraceutical, and food values due to producing an impressive range of distinctive natural bioactive compounds. Triterpene glycosides are the most abundant and prime secondary metabolites reported in this species. They possess numerous biological activities ranging from anti-tumour, wound healing, hypolipidemia, pain relieving, the improvement of nonalcoholic fatty livers, anti-hyperuricemia, the induction of bone marrow hematopoiesis, anti-hypertension, and cosmetics and anti-ageing properties. This study was designed to purify and elucidate the structure of saponin contents of the body wall of sea cucumber Holothurialessoni and to compare the distribution of saponins of the body wall with that of the viscera. The body wall was extracted with 70% ethanol, and purified by a liquid-liquid partition chromatography, followed by isobutanol extraction. A high-performance centrifugal partition chromatography (HPCPC) was conducted on the saponin-enriched mixture to obtain saponins with a high purity. The resultant purified saponins were analyzed using MALDI-MS/MS and ESI-MS/MS. The integrated and hyphenated MS and HPCPC analyses revealed the presence of 89 saponin congeners, including 35 new and 54 known saponins, in the body wall in which the majority of glycosides are of the holostane type. As a result, and in conjunction with existing literature, the structure of four novel acetylated saponins, namely lessoniosides H, I, J, and K were characterized. The identified triterpene glycosides showed potent antifungal activities against tested fungi, but had no antibacterial effects on the bacterium Staphylococcus aureus. The presence of a wide range of saponins with potential applications is promising for cosmeceutical, medicinal, and pharmaceutical products to improve human health.
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17
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Zhao YC, Xue CH, Zhang TT, Wang YM. Saponins from Sea Cucumber and Their Biological Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7222-7237. [PMID: 29932674 DOI: 10.1021/acs.jafc.8b01770] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Sea cucumbers, belonging to the phylum Echinodermata, have been valued for centuries as a nutritious and functional food with various bioactivities. Sea cucumbers can produce highly active substances, notably saponins, the main secondary metabolites, which are the basis of their chemical defense. The saponins are mostly triterpene glycosides with triterpenes or steroid in aglycone, which possess multiple biological properties including antitumor, hypolipidemic activity, improvement of nonalcoholic fatty liver, inhibition of fat accumulation, antihyperuricemia, promotion of bone marrow hematopoiesis, antihypertension, etc. Sea cucumber saponins have received attention due to their rich sources, low toxicity, high efficiency, and few side effects. This review summarizes current research on the structure and activities of sea cucumber saponins based on the physiological and pharmacological activities from source, experimental models, efficacy, and mechanisms, which may provide a valuable reference for the development of sea cucumber saponins.
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Affiliation(s)
- Ying-Cai Zhao
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
| | - Chang-Hu Xue
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
- Qingdao National Laboratory for Marine Science and Technology , Laboratory of Marine Drugs & Biological Products , Qingdao 266237 , China
| | - Tian-Tian Zhang
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
| | - Yu-Ming Wang
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
- Qingdao National Laboratory for Marine Science and Technology , Laboratory of Marine Drugs & Biological Products , Qingdao 266237 , China
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18
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2013-2014. MASS SPECTROMETRY REVIEWS 2018; 37:353-491. [PMID: 29687922 DOI: 10.1002/mas.21530] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/29/2016] [Indexed: 06/08/2023]
Abstract
This review is the eighth update of the original article published in 1999 on the application of Matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2014. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly- saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2018 Wiley Periodicals, Inc. Mass Spec Rev 37:353-491, 2018.
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Affiliation(s)
- David J Harvey
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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19
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Han QA, Li K, Dong X, Luo Y, Zhu B. Function of Thelenota ananas saponin desulfated holothurin A in modulating cholesterol metabolism. Sci Rep 2018; 8:9506. [PMID: 29934523 PMCID: PMC6014995 DOI: 10.1038/s41598-018-27932-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 06/08/2018] [Indexed: 11/24/2022] Open
Abstract
This work was designed to separate and purify the saponin from Thelenota ananas with the highest anti-cholesterol ability using multiple chromatography and mass spectrometry analyses, and to systematically investigate the effect of the Thelenota ananas saponin on cholesterol metabolism in oxidized low-density lipoprotein (ox-LDL) induced macrophage foam cells. Desulfated holothurin A (desHA), which was finally identified as the targeted saponin with the highest activity in decreasing low-density lipoprotein-cholesterol (LDL-C), markedly inhibited the formation of foam cells derived from macrophages based on Oil Red O staining. In addition, desHA significantly blocked the synthesis of fatty acid synthetase while promoted intracellular cholesterol efflux. Furthermore, desHA inhibited the effects of ox-LDL on macrophage mRNA expression, which enhanced the level of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoAR) and suppressed the expression of SR-BI, ABCA1 and ABCG1, which further increased the levels of extracellular cholesterol and triglyceride. Blocking AKT and AMPK pathway and LXR synthesis revealed that desHA also regulated the contents of HMG-CoAR and eNOS via LXR/AKT/AMPK pathway. Thus, desHA played an essential role in cholesterol efflux and synthesis, which indicated desHA and Thelenota ananas are valuable resources to exploit new functional food and nutraceuticals.
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Affiliation(s)
- Qi-An Han
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Kaifeng Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Xiuping Dong
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Dalian, 116034, China
| | - Yongkang Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
| | - Beiwei Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Dalian, 116034, China.
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20
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Jattujan P, Chalorak P, Siangcham T, Sangpairoj K, Nobsathian S, Poomtong T, Sobhon P, Meemon K. Holothuria scabra extracts possess anti-oxidant activity and promote stress resistance and lifespan extension in Caenorhabditis elegans. Exp Gerontol 2018; 110:158-171. [PMID: 29902502 DOI: 10.1016/j.exger.2018.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/02/2018] [Accepted: 06/07/2018] [Indexed: 01/15/2023]
Abstract
Holothuria scabra is a sea cucumber that is mostly found in the Indo-Pacific region including Thailand. Extracts from many sea cucumbers possess pharmacological activities proposed to benefit human health. In this study, we investigated the anti-oxidant and anti-ageing activities of extracts from H. scabra by using Caenorhabditis elegans as a model organism. Parts of H. scabra were solvent-extracted and divided into nine fractions including whole body-hexane (WBHE), whole body-ethyl acetate (WBEA), whole body-butanol (WBBU), body wall-hexane (BWHE), body wall-ethyl acetate (BWEA), body wall-butanol (BWBU), viscera-hexane (VIHE), viscera-ethyl acetate (VIEA), and viscera-butanol (VIBU). All fractions of the extracts were tested for anti-oxidant activities by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assays and for anti-ageing effects by lifespan assays using C. elegans as a model. The results showed anti-oxidant properties in all fractions with the highest activity shown by the DPPH assay in WBBU (EC50 = 3.12 ± 0.09 mg/ml), and by the ABTS assay in WBHE (EC50 = 0.31 ± 0.10 mg/ml). In lifespan assays the highest anti-ageing effect was detected in WBBU- and BWEA-treated C. elegans with increased mean lifespans of 8.12% and 4.77%, respectively. Furthermore, WBBU and BWEA-treated C. elegans exhibited significantly higher resistance against heat shock and paraquat-induced oxidative stresses than controls. By using LC-MS/MS, both extracts were characterized to contain triterpene glycosides as the main bioactive components. To explore mechanisms of H. scabra extracts on longevity and stress resistance, worms with genetic mutations in anti-ageing pathways were analyzed and showed that WBBU and BWEA did not prolong the lifespan of daf-16, age-1, sir-2.1, jnk-1, sek-1, and osr-1 mutants, suggesting that these genetic pathways are involved in mediating the anti-ageing effects of the H. scabra extracts. Moreover, WBBU and BWEA enhanced the nuclear translocation of the FoxO/DAF-16 transcription factor, and increased mRNA expression of this gene and its downstream targets sod-3, hsp12.3, and hsp16.2. In conclusion, this study strongly demonstrates anti-oxidant and anti-ageing properties of H. scabra extracts containing triterpene glycosides, which, in the C. elegans model, may be mediated via the insulin/IGF-1 signaling (IIS)-DAF-16 pathway.
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Affiliation(s)
- Prapaporn Jattujan
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Pawanrat Chalorak
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Tanapan Siangcham
- Faculty of Allied Health Sciences, Burapha University, Chonburi 20131, Thailand
| | - Kant Sangpairoj
- Division of Anatomy, Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | | | - Tanate Poomtong
- The Coastal Fisheries Research and Development Center, Prachuapkhirikhun 77000, Thailand
| | - Prasert Sobhon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Faculty of Allied Health Sciences, Burapha University, Chonburi 20131, Thailand
| | - Krai Meemon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
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21
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Mondol MAM, Shin HJ, Rahman MA, Islam MT. Sea Cucumber Glycosides: Chemical Structures, Producing Species and Important Biological Properties. Mar Drugs 2017; 15:md15100317. [PMID: 29039760 PMCID: PMC5666425 DOI: 10.3390/md15100317] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 10/07/2017] [Accepted: 10/11/2017] [Indexed: 01/29/2023] Open
Abstract
Sea cucumbers belonging to echinoderm are traditionally used as tonic food in China and other Asian countries. They produce abundant biologically active triterpene glycosides. More than 300 triterpene glycosides have been isolated and characterized from various species of sea cucumbers, which are classified as holostane and nonholostane depending on the presence or absence of a specific structural unit γ(18,20)-lactone in the aglycone. Triterpene glycosides contain a carbohydrate chain up to six monosaccharide units mainly consisting of d-xylose, 3-O-methy-d-xylose, d-glucose, 3-O-methyl-d-glucose, and d-quinovose. Cytotoxicity is the common biological property of triterpene glycosides isolated from sea cucumbers. Besides cytotoxicity, triterpene glycosides also exhibit antifungal, antiviral and hemolytic activities. This review updates and summarizes our understanding on diverse chemical structures of triterpene glycosides from various species of sea cucumbers and their important biological activities. Mechanisms of action and structural-activity relationships (SARs) of sea cucumber glycosides are also discussed briefly.
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Affiliation(s)
| | - Hee Jae Shin
- Marine Natural Products Laboratory, Korea Institute of Ocean Science and Technology, 787 Haeanro, Ansan 427-744, Korea.
| | - M Aminur Rahman
- World Fisheries University Pilot Programme, Pukyong National University (PKNU), 45 Yongso-ro, Nam-gu, Busan 48513, Korea.
| | - Mohamad Tofazzal Islam
- Department of Biotechnology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh.
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Mechanisms of cancer cell killing by sea cucumber-derived compounds. Invest New Drugs 2017; 35:820-826. [PMID: 28920157 PMCID: PMC5694523 DOI: 10.1007/s10637-017-0505-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/24/2017] [Indexed: 12/29/2022]
Abstract
The aim of cancer therapy is to specifically eradicate tumor cells while causing minimal damage to normal tissues and minimal side-effects. Because of this, the use of natural substances with low toxicity is a good option. Sea cucumbers are one of many potential marine animals that contain valuable nutrients and medicinal properties. The medicinal value of sea cucumbers is attributed to the presence of bioactive agents with promising biological and pharmacological properties that include cytotoxic activity, induction of apoptosis, cell cycle arrest, inhibition of tumor growth, anti-metastatic and anti-angiogenic properties, and inhibition of drug resistance. This review discusses the mechanisms of cancer cell death induced by sea cucumber-derived compounds with regard to exploring the potential use of these marine natural products for cancer therapy.
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Zhang JJ, Zhu KQ. A novel antitumor compound nobiliside D isolated from sea cucumber ( Holothuria nobilis Selenka). Exp Ther Med 2017; 14:1653-1658. [PMID: 28810632 DOI: 10.3892/etm.2017.4656] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 11/25/2016] [Indexed: 11/05/2022] Open
Abstract
An anticancer compound, triterpene glycoside, was isolated from Holothuria nobilis Selenka. Its chemical structure and configuration were determined by two-dimensional nuclear magnetic resonance spectroscopy and electrospray ionization mass spectrometry. The novel active compound was identified as nobiliside D, with the molecular formula C40H61O17SNa and chemical name 3-O-[-β-D-pyranosyl (1-2)-4'-O-sulfon-ate-β-D-xylopyranosyl]-alkoxy-9-ene-3β, 12α, 17α, 25β-4 alcohol. An antitumor test was performed using xCELLigence Real-Time Cell Analysis. Nobiliside D exhibited inhibitory effects on human leukemic cell line K562, human leukemia cell line U937, human lung cancer cell line A-549, human cervix carcinoma cell line HeLa, human breast cancer cell line MCF-7 and human liver carcinoma cell line HepG2. Nobiliside exhibited the greatest inhibitory effect on K562 and MCF-7 cells with an IC50 of 0.83±0.14 and 0.82±0.11 µg/ml, respectively. When human tumor cell lines K562 and MCF-7 were treated by nobiliside D (0.5 µg/ml) for 24 h, 45.8% of K562 cells and 58.7% of MCF-7 cells were apoptotic, whereas only 0.5% of un-treated control cells were apoptotic. These data indicate the compound should offer potential as a novel drug for the treatment of a range of cancers.
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Affiliation(s)
- Jia-Jia Zhang
- School of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, P.R. China
| | - Ke-Qi Zhu
- Department of Traditional Chinese Internal Medicine, Ningbo No. 1 Hospital, Ningbo, Zhejiang 315010, P.R. China
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Assawasuparerk K, Vanichviriyakit R, Chotwiwatthanakun C, Nobsathian S, Rawangchue T, Wittayachumnankul B. Scabraside D Extracted from Holothuria scabra Induces Apoptosis and Inhibits Growth of Human Cholangiocarcinoma Xenografts in Mice. Asian Pac J Cancer Prev 2017; 17:511-7. [PMID: 26925636 DOI: 10.7314/apjcp.2016.17.2.511] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Scabraside D, a sulfated triterpene glycoside extract from sea cucumber Holothulia scabra, shows various biological activities, but effects on human cholangiocarcinoma cells have not previously been reported. In the present study, we investigated the activity of scabraside D against human cholangiocarcinoma (HuCCA) both in vitro and for tumor growth inhibition in vivo using a xenograft model in nude mice. Scabraside D (12.5-100 μg/mL) significantly decreased the viability and the migration of the HuCCA cells in a dose-dependent manner, with 50% inhibitory concentration (IC50) of 12.8 ± 0.05 μg/mL at 24 h. It induced signs of apoptotic cells, including shrinkage, pyknosis and karyorrhetic nuclei and DNA fragmentation on agarose gel electrophoresis. Moreover, by quantitative real-time PCR, scabraside D effectively decreased Bcl-2 while increasing Bax and Caspase-3 gene expression levels suggesting that the scabraside D could induce apoptosis in HuCCA cells. In vivo study demonstrated that scabraside D (1 mg/kg/day, i.p. for 21 days) significantly reduced growth of the HuCCA xenografts without adverse effects on the nude mice. Conclusively, scabraside D induced apoptosis in HuCCA cells and reduced the growth of HuCCA xenographs model. Therefore, scabraside D may have potential as a new therapeutic agent for cholangiocarcinoma.
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Chemical characterization of saponins contained in the body wall and the Cuvierian tubules of the sea cucumber Holothuria (Platyperona) sanctori (Delle Chiaje, 1823). BIOCHEM SYST ECOL 2016. [DOI: 10.1016/j.bse.2016.06.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Bahrami Y, Franco CMM. Acetylated Triterpene Glycosides and Their Biological Activity from Holothuroidea Reported in the Past Six Decades. Mar Drugs 2016; 14:E147. [PMID: 27527190 PMCID: PMC4999908 DOI: 10.3390/md14080147] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 07/17/2016] [Accepted: 07/19/2016] [Indexed: 01/30/2023] Open
Abstract
Sea cucumbers have been valued for many centuries as a tonic and functional food, dietary delicacies and important ingredients of traditional medicine in many Asian countries. An assortment of bioactive compounds has been described in sea cucumbers. The most important and abundant secondary metabolites from sea cucumbers are triterpene glycosides (saponins). Due to the wide range of their potential biological activities, these natural compounds have gained attention and this has led to their emergence as high value compounds with extended application in nutraceutical, cosmeceutical, medicinal and pharmaceutical products. They are characterized by bearing a wide spectrum of structures, such as sulfated, non-sulfated and acetylated glycosides. Over 700 triterpene glycosides have been reported from the Holothuroidea in which more than 145 are decorated with an acetoxy group having 38 different aglycones. The majority of sea cucumber triterpene glycosides are of the holostane type containing a C18 (20) lactone group and either Δ(7(8)) or Δ(9(11)) double bond in their genins. The acetoxy group is mainly connected to the C-16, C-22, C-23 and/or C-25 of their aglycone. Apparently, the presence of an acetoxy group, particularly at C-16 of the aglycone, plays a significant role in the bioactivity; including induction of caspase, apoptosis, cytotoxicity, anticancer, antifungal and antibacterial activities of these compounds. This manuscript highlights the structure of acetylated saponins, their biological activity, and their structure-activity relationships.
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Affiliation(s)
- Yadollah Bahrami
- Medical Biotechnology, Flinders Medical Science and Technology, School of Medicine, Flinders University, Adelaide SA 5042, Australia.
- Centre for Marine Bioproducts Development, Flinders University, Adelaide SA 5042, Australia.
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6714415185, Iran.
| | - Christopher M M Franco
- Medical Biotechnology, Flinders Medical Science and Technology, School of Medicine, Flinders University, Adelaide SA 5042, Australia.
- Centre for Marine Bioproducts Development, Flinders University, Adelaide SA 5042, Australia.
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Assawasuparerk K, Rawangchue T, Phonarknguen R. Scabraside D Derived from Sea Cucumber Induces Apoptosis and Inhibits Metastasis via iNOS and STAT-3 Expression in Human Cholangiocarcinoma Xenografts. Asian Pac J Cancer Prev 2016; 17:2151-7. [PMID: 27221911 DOI: 10.7314/apjcp.2016.17.4.2151] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Scabraside D, a sulfated triterpene glycoside, was extracted from the sea cucumber Holothuria scabra. It shows anti-proliferation in many of cancer cell lines, but the function and mechanisms of action of scabraside D in human cholangiocarcinoma (HuCCA) have not previously determined. In this study, we investigated the activity of scabraside D on HuCCA cell apoptosis, lymphangiogenesis and metastasis in a nude mouse model. Scabraside D induced signs of apoptosis, such as cell shrinkage, nuclear condensation, nuclear fragmentation and DNA fragmentation on TUNEL assays, while effectively decreasing expression of BCl-2 but increasing caspase-3 gene level expression. Immunohistochemistry revealed that scabraside D significantly reduced lymphatic vessel density (LVD). Moreover, scabraside D treatment significantly decreased VEGF-C, MMP-9 and uPA gene expression, which play important roles in the lymphangiogenesis and invasion of cancer cells in metastasis processes. Quantitative real-time PCR showed that scabraside D significantly decreased iNOS and STAT-3 gene expression. This study demonstrated that scabraside D plays a role in activation of HuCCA tumor apoptosis and inhibition of lymphangiogenesis, invasion and metastasis through decreasing BCl-2, MMP-9, uPA and VEGF-C and increasing caspase-3 expression by suppression of iNOS and STAT-3 expression. Therefore, scabraside D could be a promising candidate for cholangiocarcinoma treatment.
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Abstract
This review covers the literature published in 2014 for marine natural products (MNPs), with 1116 citations (753 for the period January to December 2014) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1378 in 456 papers for 2014), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Tripoteau L, Bedoux G, Gagnon J, Bourgougnon N. In vitro antiviral activities of enzymatic hydrolysates extracted from byproducts of the Atlantic holothurian Cucumaria frondosa. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.02.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Structure elucidation of new acetylated saponins, Lessoniosides A, B, C, D, and E, and non-acetylated saponins, Lessoniosides F and G, from the viscera of the sea cucumber Holothuria lessoni. Mar Drugs 2015; 13:597-617. [PMID: 25603350 PMCID: PMC4306954 DOI: 10.3390/md13010597] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 01/01/2015] [Indexed: 11/25/2022] Open
Abstract
Sea cucumbers produce numerous compounds with a wide range of chemical structural diversity. Among these, saponins are the most diverse and include sulfated, non-sulfated, acetylated and methylated congeners with different aglycone and sugar moieties. In this study, MALDI and ESI tandem mass spectrometry, in the positive ion mode, were used to elucidate the structure of new saponins extracted from the viscera of H. lessoni. Fragmentation of the aglycone provided structural information on the presence of the acetyl group. The presence of the O-acetyl group was confirmed by observing the mass transition of 60 u corresponding to the loss of a molecule of acetic acid. Ion fingerprints from the glycosidic cleavage provided information on the mass of the aglycone (core), and the sequence and type of monosaccharides that constitute the sugar moiety. The tandem mass spectra of the saponin precursor ions [M + Na]+ provided a wealth of detailed structural information on the glycosidic bond cleavages. As a result, and in conjunction with existing literature, we characterized the structure of five new acetylated saponins, Lessoniosides A–E, along with two non-acetylated saponins Lessoniosides F and G at m/z 1477.7, which are promising candidates for future drug development. The presented strategy allows a rapid, reliable and complete analysis of native saponins.
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