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Li L, Su Z, He Y, Zhong X, Fu C, Zou L, Li J, Zhang J. Physicochemical characterization and anti-angiogenesis activity of polysaccharides from Amauroderma rugosum, a medicinal and edible mushroom. Int J Biol Macromol 2024; 274:133478. [PMID: 38942412 DOI: 10.1016/j.ijbiomac.2024.133478] [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: 09/14/2023] [Revised: 06/06/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
Amauroderma rugosum (AR) is commonly recognized as a medicinal fungus, often used as an alternative to Ganoderma lucidum. There is a scarcity of comprehensive and in-depth research on its bioactive polysaccharides and their associated biological activities. Herein, we isolated the polysaccharide fractions extracted from AR (ARPs) and investigated their primary structure and anti-angiogenic activities, given that various diseases are associated with excessive angiogenesis. Four polysaccharide fractions including ARP-0, ARP-1, ARP-2, and ARP-5 were heteropolysaccharides with different molecular weights, monosaccharide compositions, and micromorphologies, highlighting their varying bioactive profiles. Treatment of human umbilical vein endothelial cells with these polysaccharide fractions showed that only ARP-5 inhibited cell proliferation after vascular endothelial growth factor (VEGF) stimulation. Similarly, ARP-5 inhibited human umbilical vein endothelial cells migration, invasion, and tube formation upon VEGF (50 ng/mL) treatment. Moreover, compared with the insignificant effects of ARP-0, ARP-1, and ARP-2, ARP-5 impeded angiogenesis in zebrafish embryos. Additionally, ARP-5 downregulated the VEGF/VEGFR2 signaling pathway in a dose-dependent manner, suggesting that ARP-5 exerts its anti-angiogenic activities by blocking the VEGF/VEGFR2-mediated angiogenesis signaling pathway. Taken together, the study findings shed light on the primary structure and bioactivity of ARPs.
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Affiliation(s)
- Ling Li
- School of Comprehensive Health Management, Xihua University, Chengdu, Sichuan 610039, China; State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Ziye Su
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Yuxin He
- School of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China
| | - Xuemei Zhong
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Chaomei Fu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Liang Zou
- School of Food and Biological Engineering Preclinical Medicine, Chengdu University, Chengdu 610106, China
| | - Jingjing Li
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hong Kong, China..
| | - Jinming Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China.
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Nie X, Li J, Cheng Y, Rangsinth P, Wu X, Zheng C, Shiu PHT, Li R, Xu N, He Y, Lau BWM, Seto SW, Zhang J, Lee SMY, Leung GPH. Characterization of a polysaccharide from Amauroderma rugosum and its proangiogenic activities in vitro and in vivo. Int J Biol Macromol 2024; 271:132533. [PMID: 38777026 DOI: 10.1016/j.ijbiomac.2024.132533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 05/14/2024] [Accepted: 05/19/2024] [Indexed: 05/25/2024]
Abstract
Amauroderma rugosum (AR), also known as "Blood Lingzhi" in Chinese, is a basidiomycete belonging to the Ganodermataceae family. Four polysaccharide fractions were systematically isolated and purified from AR. Subsequently, their compositions were examined and analyzed via high-performance gel permeation chromatography (HPGPC), analysis of the monosaccharide composition, Fourier-transform infrared spectroscopy (FT-IR), and 1H nuclear magnetic resonance (NMR). The zebrafish model was then used to screen for proangiogenic activities of polysaccharides by inducing vascular insufficiency with VEGF receptor tyrosine kinase inhibitor II (VRI). The third fraction of AR polysaccharides (PAR-3) demonstrated the most pronounced proangiogenic effects, effectively ameliorating VRI-induced intersegmental vessel deficiency in zebrafish. Concurrently, the mRNA expression levels of vascular endothelial growth factor (VEGF)-A and VEGF receptors were upregulated by PAR-3. Moreover, the proliferation, migration, invasion, and tube formation of human umbilical vein endothelial cells (HUVECs) were also stimulated by PAR-3, consistently demonstrating that PAR-3 possesses favorable proangiogenic properties. The activation of the Akt, ERK1/2, p38 MAPK, and FAK was most likely the underlying mechanism. In conclusion, this study establishes that PAR-3 isolated from Amauroderma rugosum exhibits potential as a bioresource for promoting angiogenesis.
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Affiliation(s)
- Xin Nie
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macao Special Administrative Region of China; Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hong Kong Special Administrative Region of China
| | - Jingjing Li
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hong Kong Special Administrative Region of China; The Research Centre for Chinese Medicine Innovation, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region of China.
| | - Yanfen Cheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Panthakarn Rangsinth
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Xiaoping Wu
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Chengwen Zheng
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Polly Ho-Ting Shiu
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Renkai Li
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Nan Xu
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macao Special Administrative Region of China
| | - Yulin He
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hong Kong Special Administrative Region of China
| | - Benson Wui-Man Lau
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hong Kong Special Administrative Region of China
| | - Sai-Wang Seto
- Department of Food Science and Nutrition, Faculty of Science, Hong Kong Polytechnic University, Hong Kong, China; The Research Centre for Chinese Medicine Innovation, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region of China
| | - Jinming Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Simon Ming-Yuen Lee
- Department of Food Science and Nutrition, Faculty of Science, Hong Kong Polytechnic University, Hong Kong, China; The Research Centre for Chinese Medicine Innovation, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region of China.
| | - George Pak-Heng Leung
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region of China.
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Dörschmann P, Hunger F, Schroth H, Chen S, Kopplin G, Roider J, Klettner A. Effects of Fucoidans on Activated Retinal Microglia. Int J Mol Sci 2024; 25:6018. [PMID: 38892206 PMCID: PMC11173224 DOI: 10.3390/ijms25116018] [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: 03/27/2024] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
Sulfated marine polysaccharides, so-called fucoidans, have been shown to exhibit anti-inflammatory and immunomodulatory activities in retinal pigment epithelium (RPE). In this study, we tested the effects of different fucoidans (and of fucoidan-treated RPE cells) on retinal microglia to investigate whether its anti-inflammatory effect can be extrapolated to the innate immune cells of the retina. In addition, we tested whether fucoidan treatment influenced the anti-inflammatory effect of RPE cells on retinal microglia. Three fucoidans were tested (FVs from Fucus vesiculosus, Fuc1 and FucBB04 from Laminaria hyperborea) as well as the supernatant of primary porcine RPE treated with fucoidans for their effects on inflammatory activated (using lipopolysaccharide, LPS) microglia cell line SIM-A9 and primary porcine retinal microglia. Cell viability was detected with a tetrazolium assay (MTT), and morphology by Coomassie staining. Secretion of tumor necrosis factor alpha (TNFα), interleukin 1 beta (IL1β) and interleukin 8 (IL8) was detected with ELISA, gene expression (NOS2 (Nitric oxide synthase 2), and CXCL8 (IL8)) with qPCR. Phagocytosis was detected with a fluorescence assay. FucBB04 and FVs slightly reduced the viability of SIM-A9 and primary microglia, respectively. Treatment with RPE supernatants increased the viability of LPS-treated primary microglia. FVs and FucBB04 reduced the size of LPS-activated primary microglia, indicating an anti-inflammatory phenotype. RPE supernatant reduced the size of LPS-activated SIM-A9 cells. Proinflammatory cytokine secretion and gene expression in SIM-A9, as well as primary microglia, were not significantly affected by fucoidans, but RPE supernatants reduced the secretion of LPS-induced proinflammatory cytokine secretion in SIM-A9 and primary microglia. The phagocytosis ability of primary microglia was reduced by FucBB04. In conclusion, fucoidans exhibited only modest effects on inflammatorily activated microglia by maintaining their cell size under stimulation, while the anti-inflammatory effect of RPE cells on microglia irrespective of fucoidan treatment could be confirmed, stressing the role of RPE in regulating innate immunity in the retina.
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Affiliation(s)
- Philipp Dörschmann
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany (A.K.)
| | - Florentine Hunger
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany (A.K.)
| | - Hannah Schroth
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany (A.K.)
| | - Sibei Chen
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany (A.K.)
| | - Georg Kopplin
- Alginor ASA, Haraldsgata 162, 5525 Haugesund, Norway;
| | - Johann Roider
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany (A.K.)
| | - Alexa Klettner
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany (A.K.)
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Graikini D, Soro AB, Sivagnanam SP, Tiwari BK, Sánchez L. Bioactivity of Fucoidan-Rich Extracts from Fucus vesiculosus against Rotavirus and Foodborne Pathogens. Mar Drugs 2023; 21:478. [PMID: 37755091 PMCID: PMC10532486 DOI: 10.3390/md21090478] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
Marine algae are sources of bioactive components with defensive properties of great value against microbial infections. This study investigated the bioactivity of extracts from brown algae Fucus vesiculosus against rotavirus, the worldwide leading cause of acute gastroenteritis in infants and young children. Moreover, one of the extracts was tested against four foodborne bacteria: Campylobacter jejuni, Escherichia coli, Salmonella Typhimurium, and Listeria monocytogenes, and the non-pathogenic: E. coli K12. In vitro tests using MA104 cells revealed that both whole algae extracts and crude fucoidan precipitates neutralized rotavirus in a dose-responsive manner. The maximum neutralization activity was observed when the rotavirus was incubated with 100 μg mL-1 of the hydrochloric acid-obtained crude fucoidan (91.8%), although crude fucoidan extracted using citric acid also demonstrated high values (89.5%) at the same concentration. Furthermore, molecular weight fractionation of extracts decreased their antirotaviral activity and high molecular weight fractions exhibited higher activity compared to those of lower molecular weight. A seaweed extract with high antirotaviral activity was also found to inhibit the growth of C. jejuni, S. Typhimurium, and L. monocytogenes at a concentration of 0.2 mg mL-1. Overall, this study expands the current knowledge regarding the antimicrobial mechanisms of action of extracts from F. vesiculosus.
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Affiliation(s)
- Dimitra Graikini
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain;
- Instituto Agroalimentario de Aragón IA2 (UNIZAR-CITA), 50013 Zaragoza, Spain
| | - Arturo B. Soro
- Foodborne Pathogens Unit, Department of Infectious Diseases in Humans, Sciensano, 1050 Brussels, Belgium;
- Teagasc Ashtown Food Research Centre, D15 DY05 Dublin, Ireland; (S.P.S.); (B.K.T.)
| | - Saravana P. Sivagnanam
- Teagasc Ashtown Food Research Centre, D15 DY05 Dublin, Ireland; (S.P.S.); (B.K.T.)
- Department of Biological Sciences, Munster Technological University, Bishopstown, T12P928 Cork Ireland
| | - Brijesh K. Tiwari
- Teagasc Ashtown Food Research Centre, D15 DY05 Dublin, Ireland; (S.P.S.); (B.K.T.)
| | - Lourdes Sánchez
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain;
- Instituto Agroalimentario de Aragón IA2 (UNIZAR-CITA), 50013 Zaragoza, Spain
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Zahariev N, Katsarov P, Lukova P, Pilicheva B. Novel Fucoidan Pharmaceutical Formulations and Their Potential Application in Oncology-A Review. Polymers (Basel) 2023; 15:3242. [PMID: 37571136 PMCID: PMC10421178 DOI: 10.3390/polym15153242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/23/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Fucoidan belongs to the family of marine sulfated, L-fucose-rich polysaccharides found in the cell wall matrix of various brown algae species. In the last few years, sulfated polysaccharides have attracted the attention of researchers due to their broad biological activities such as anticoagulant, antithrombotic, antidiabetic, immunomodulatory, anticancer and antiproliferative effects. Recently the application of fucoidan in the field of pharmaceutical technology has been widely investigated. Due to its low toxicity, biocompatibility and biodegradability, fucoidan plays an important role as a drug carrier for the formulation of various drug delivery systems, especially as a biopolymer with anticancer activity, used for targeted delivery of chemotherapeutics in oncology. Furthermore, the presence of sulfate residues with negative charge in its structure enables fucoidan to form ionic complexes with oppositely charged molecules, providing relatively easy structure-forming properties in combination with other polymers. The aim of the present study was to overview essential fucoidan characteristics, related to its application in the development of pharmaceutical formulations as a single drug carrier or in combinations with other polymers. Special focus was placed on micro- and nanosized drug delivery systems with polysaccharides and their application in the field of oncology.
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Affiliation(s)
- Nikolay Zahariev
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4002 Plovdiv, Bulgaria; (N.Z.); (B.P.)
- Research Institute, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4002 Plovdiv, Bulgaria
| | - Plamen Katsarov
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4002 Plovdiv, Bulgaria; (N.Z.); (B.P.)
- Research Institute, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4002 Plovdiv, Bulgaria
| | - Paolina Lukova
- Department of Pharmacognosy and Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4002 Plovdiv, Bulgaria;
| | - Bissera Pilicheva
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4002 Plovdiv, Bulgaria; (N.Z.); (B.P.)
- Research Institute, Medical University of Plovdiv, 15A Vassil Aprilov Blvd, 4002 Plovdiv, Bulgaria
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Turrini E, Maffei F, Fimognari C. Ten Years of Research on Fucoidan and Cancer: Focus on Its Antiangiogenic and Antimetastatic Effects. Mar Drugs 2023; 21:md21050307. [PMID: 37233501 DOI: 10.3390/md21050307] [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: 04/06/2023] [Revised: 05/05/2023] [Accepted: 05/17/2023] [Indexed: 05/27/2023] Open
Abstract
Angiogenesis and metastasis represent two challenging targets to combat cancer development in the later stages of its progression. Numerous studies have indicated the important role of natural products in blocking tumor angiogenesis signaling pathways in several advanced tumors. In recent years, the marine polysaccharides fucoidans emerged as promising anticancer compounds showing potent antitumor activity in both in vitro and in vivo models of different types of cancers. The objective of this review is to focus on the antiangiogenic and antimetastatic activities of fucoidans with special emphasis on preclinical studies. Independently from their source, fucoidans inhibit several angiogenic regulators, primarily vascular endothelial growth factor (VEGF). A glance towards fucoidans' ongoing clinical trials and pharmacokinetic profile is provided to present the main challenges that still need to be addressed for their bench-to-bedside translation.
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Affiliation(s)
- Eleonora Turrini
- Department for Life Quality Studies, University of Bologna-C.so d'Augusto, 237, 47921 Rimini, Italy
| | - Francesca Maffei
- Department for Life Quality Studies, University of Bologna-C.so d'Augusto, 237, 47921 Rimini, Italy
| | - Carmela Fimognari
- Department for Life Quality Studies, University of Bologna-C.so d'Augusto, 237, 47921 Rimini, Italy
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Dörschmann P, Seeba C, Thalenhorst T, Roider J, Klettner A. Anti-inflammatory properties of antiangiogenic fucoidan in retinal pigment epithelium cells. Heliyon 2023; 9:e15202. [PMID: 37123974 PMCID: PMC10130777 DOI: 10.1016/j.heliyon.2023.e15202] [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: 10/04/2022] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 05/02/2023] Open
Abstract
Age-related macular degeneration (AMD) is a multifactorial disease in which angiogenesis, oxidative stress and inflammation are important contributing factors. In this study, we investigated the anti-inflammatory effects of a fucoidan from the brown algae Fucus vesiculosus (FV) in primary porcine RPE cells. Inflammation was induced by lipopolysaccharide (LPS), polyinosinic:polycytidylic acid (Poly I:C), Pam2CSK4 (Pam), or tumor necrosis factor alpha (TNF-α). Cell viability was tested with thiazolyl blue tetrazolium bromide (MTT) test, barrier function by measuring transepithelial electric resistance (TEER), interleukin 6 (IL-6) and interleukin 8 (IL-8) secretion in ELISA, retinal pigment epithelium-specific 65 kDa protein (RPE65) and protectin (CD59) expression in Western blot, gene expression with quantitative polymerase chain reaction (qPCR) (IL6, IL8, MERTK, PIK3CA), and phagocytotic activity in a microscopic assay. FV fucoidan did not influence RPE cell viability. FV fucoidan reduced the Poly I:C proinflammatory cytokine secretion of IL-6 and IL-8. In addition, it decreased the expression of IL-6 and IL-8 in RT-PCR. LPS and TNF-α reduced the expression of CD59 in Western blot, this reduction was lost under FV fucoidan treatment. Also, LPS and TNF-α reduced the expression of visual cycle protein RPE65, this reduction was again lost under FV fucoidan treatment. Furthermore, the significant reduction of barrier function after Poly I:C stimulation is ameliorated by FV fucoidan. Concerning phagocytosis, however, the inflammation-induced reduction was not improved by FV fucoidan. FV and proinflammatory milieu did not relevantly influence phagocytosis relevant gene expression either. In conclusion, we show that fucoidan from FV can reduce proinflammatory stimulation in RPE induced by toll-like receptor 3 (TLR-3) activation and is of high interest as a potential compound for early AMD treatment.
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Immunopotentiating Activity of Fucoidans and Relevance to Cancer Immunotherapy. Mar Drugs 2023; 21:md21020128. [PMID: 36827169 PMCID: PMC9961398 DOI: 10.3390/md21020128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/05/2023] [Accepted: 02/11/2023] [Indexed: 02/18/2023] Open
Abstract
Fucoidans, discovered in 1913, are fucose-rich sulfated polysaccharides extracted mainly from brown seaweed. These versatile and nontoxic marine-origin heteropolysaccharides have a wide range of favorable biological activities, including antitumor, immunomodulatory, antiviral, antithrombotic, anticoagulant, antithrombotic, antioxidant, and lipid-lowering activities. In the early 1980s, fucoidans were first recognized for their role in supporting the immune response and later, in the 1990s, their effects on immune potentiation began to emerge. In recent years, the understanding of the immunomodulatory effects of fucoidan has expanded significantly. The ability of fucoidan(s) to activate CTL-mediated cytotoxicity against cancer cells, strong antitumor property, and robust safety profile make fucoidans desirable for effective cancer immunotherapy. This review focusses on current progress and understanding of the immunopotentiation activity of various fucoidans, emphasizing their relevance to cancer immunotherapy. Here, we will discuss the action of fucoidans in different immune cells and review how fucoidans can be used as adjuvants in conjunction with immunotherapeutic products to improve cancer treatment and clinical outcome. Some key rationales for the possible combination of fucoidans with immunotherapy will be discussed. An update is provided on human clinical studies and available registered cancer clinical trials using fucoidans while highlighting future prospects and challenges.
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Dörschmann P, Kopplin G, Roider J, Klettner A. Interaction of High-Molecular Weight Fucoidan from Laminaria hyperborea with Natural Functions of the Retinal Pigment Epithelium. Int J Mol Sci 2023; 24:2232. [PMID: 36768552 PMCID: PMC9917243 DOI: 10.3390/ijms24032232] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Fucoidans are polysaccharides and constituents of cell walls of brown algae such as Laminaria hyperborea (LH). They exhibit promising effects regarding age-related macular degeneration (AMD). However, the safety of this compound needs to be assured. The focus of this study lies on influences of an LH fucoidan on the retinal pigment epithelium (RPE). The high-molecular weight LH fucoidan Fuc1 was applied to primary porcine RPE cells, and a tetrazolium (MTT) cell viability assay was conducted. Further tests included a scratch assay to measure wound healing, Western blotting to measure expression of retinal pigment epithelium-specific 65 kDa protein (RPE65), as well as immunofluorescence to measure uptake of opsonized fluorescence beads into RPE cells. Lipopolysaccharide was used to proinflammatorily activate the RPE, and interleukin 6 (IL-6) and interleukin 8 (IL-8) secretion was measured. RPE/choroid cultures were used to assess vascular endothelial growth factor (VEGF) secretion. Real-time polymerase chain reaction (real-time PCR) was performed to detect the gene expression of 91 different genes in a specific porcine RPE gene array. Fuc1 slightly reduced wound healing, but did not influence cell viability, phagocytosis or RPE65 expression. Fuc1 lowered IL-6, IL-8 and VEGF secretion. Furthermore, Fuc1 did not change tested RPE genes. In conclusion, Fuc1 does not impair RPE cellular functions and shows antiangiogenic and anti-inflammatory activities, which indicates its safety and strengthens its suitability concerning ocular diseases.
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Affiliation(s)
- Philipp Dörschmann
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
| | - Georg Kopplin
- Alginor ASA, Haraldsgata 162, 5525 Haugesund, Norway
| | - Johann Roider
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
| | - Alexa Klettner
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany
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Zaitseva OO, Sergushkina MI, Khudyakov AN, Polezhaeva TV, Solomina ON. Seaweed sulfated polysaccharides and their medicinal properties. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Anti-angiogenic properties of sulfated polysaccharides fucoidans and their analogs. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3680-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Perspectives for the Use of Fucoidans in Clinical Oncology. Int J Mol Sci 2022; 23:ijms231911821. [PMID: 36233121 PMCID: PMC9569813 DOI: 10.3390/ijms231911821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 11/17/2022] Open
Abstract
Fucoidans are natural sulfated polysaccharides that have a wide range of biological functions and are regarded as promising antitumor agents. The activity of various fucoidans and their derivatives has been demonstrated in vitro on tumor cells of different histogenesis and in experiments on mice with grafted tumors. However, these experimental models showed low levels of antitumor activity and clinical trials did not prove that this class of compounds could serve as antitumor drugs. Nevertheless, the anti-inflammatory, antiangiogenic, immunostimulating, and anticoagulant properties of fucoidans, as well as their ability to stimulate hematopoiesis during cytostatic-based antitumor therapy, suggest that effective fucoidan-based drugs could be designed for the supportive care and symptomatic therapy of cancer patients. The use of fucoidans in cancer patients after chemotherapy and radiation therapy might promote the rapid improvement of hematopoiesis, while their anti-inflammatory, immunomodulatory, and anticoagulant effects have the potential to improve the quality of life of patients with advanced cancer.
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Li C, Zhang G, Xun L, Liu D, Wang M. Depressant behavior of crude fucoidan in the separation of talc and molybdenite. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Seaweeds in the Oncology Arena: Anti-Cancer Potential of Fucoidan as a Drug—A Review. Molecules 2022; 27:molecules27186032. [PMID: 36144768 PMCID: PMC9506145 DOI: 10.3390/molecules27186032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Marine natural products are a discerning arena to search for the future generation of medications to treat a spectrum of ailments. Meanwhile, cancer is becoming more ubiquitous over the world, and the likelihood of dying from it is rising. Surgery, radiation, and chemotherapy are the mainstays of cancer treatment worldwide, but their extensive side effects limit their curative effect. The quest for low-toxicity marine drugs to prevent and treat cancer is one of the current research priorities of researchers. Fucoidan, an algal sulfated polysaccharide, is a potent therapeutic lead candidate against cancer, signifying that far more research is needed. Fucoidan is a versatile, nontoxic marine-origin heteropolysaccharide that has received much attention due to its beneficial biological properties and safety. Fucoidan has been demonstrated to exhibit a variety of conventional bioactivities, such as antiviral, antioxidant, and immune-modulatory characteristics, and anticancer activity against a wide range of malignancies has also recently been discovered. Fucoidan inhibits tumorigenesis by prompting cell cycle arrest and apoptosis, blocking metastasis and angiogenesis, and modulating physiological signaling molecules. This review compiles the molecular and cellular aspects, immunomodulatory and anticancer actions of fucoidan as a natural marine anticancer agent. Specific fucoidan and membranaceous polysaccharides from Ecklonia cava, Laminaria japonica, Fucus vesiculosus, Astragalus, Ascophyllum nodosum, Codium fragile serving as potential anticancer marine drugs are discussed in this review.
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15
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Iqbal MW, Riaz T, Mahmood S, Bilal M, Manzoor MF, Qamar SA, Qi X. Fucoidan-based nanomaterial and its multifunctional role for pharmaceutical and biomedical applications. Crit Rev Food Sci Nutr 2022; 64:354-380. [PMID: 35930305 DOI: 10.1080/10408398.2022.2106182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Fucoidans are promising sulfated polysaccharides isolated from marine sources that have piqued the interest of scientists in recent years due to their widespread use as a bioactive substance. Bioactive coatings and films, unsurprisingly, have seized these substances to create novel, culinary, therapeutic, and diagnostic bioactive nanomaterials. The applications of fucoidan and its composite nanomaterials have a wide variety of food as well as pharmacological properties, including anti-oxidative, anti-inflammatory, anti-cancer, anti-thrombic, anti-coagulant, immunoregulatory, and anti-viral properties. Blends of fucoidan with other biopolymers such as chitosan, alginate, curdlan, starch, etc., have shown promising coating and film-forming capabilities. A blending of biopolymers is a recommended approach to improve their anticipated properties. This review focuses on the fundamental knowledge and current development of fucoidan, fucoidan-based composite material for bioactive coatings and films, and their biological properties. In this article, fucoidan-based edible bioactive coatings and films expressed excellent mechanical strength that can prolong the shelf-life of food products and maintain their biodegradability. Additionally, these coatings and films showed numerous applications in the biomedical field and contribute to the economy. We hope this review can deliver the theoretical basis for the development of fucoidan-based bioactive material and films.
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Affiliation(s)
| | - Tahreem Riaz
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Shahid Mahmood
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | | | - Sarmad Ahmad Qamar
- Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei, Taiwan
| | - Xianghui Qi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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16
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Zvyagintseva TN, Usoltseva RV, Shevchenko NM, Surits VV, Imbs TI, Malyarenko OS, Besednova NN, Ivanushko LA, Ermakova SP. Structural diversity of fucoidans and their radioprotective effect. Carbohydr Polym 2021; 273:118551. [PMID: 34560963 DOI: 10.1016/j.carbpol.2021.118551] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 12/14/2022]
Abstract
Fucoidans are biologically active sulfated polysaccharides of brown algae. They have a great structural diversity and a wide spectrum of biological activity. This review is intended to outline what is currently known about the structures of fucoidans and their radioprotective effect. We classified fucoidans according to their composition and structure, examined the structure of fucoidans of individual representatives of algae, summarized the available data on changes in the yields and compositions of fucoidans during algae development, and focused on information about underexplored radioprotective effect of these polysaccharides. Based on the presented in the review data, it is possible to select algae, which are the sources of fucoidans of desired structures and to determine the best time to harvest them. The use of high purified polysaccharides with established structures increase the value of studies of their biological effects and the determination of the dependence "structure - biological effect".
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Affiliation(s)
- Tatiana N Zvyagintseva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100 Let Vladivostoku, 690022 Vladivostok, Russian Federation
| | - Roza V Usoltseva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100 Let Vladivostoku, 690022 Vladivostok, Russian Federation.
| | - Natalia M Shevchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100 Let Vladivostoku, 690022 Vladivostok, Russian Federation
| | - Valerii V Surits
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100 Let Vladivostoku, 690022 Vladivostok, Russian Federation
| | - Tatiana I Imbs
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100 Let Vladivostoku, 690022 Vladivostok, Russian Federation
| | - Olesya S Malyarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100 Let Vladivostoku, 690022 Vladivostok, Russian Federation
| | - Natalia N Besednova
- G.P. Somov Scientific Research Institute of Epidemiology and Microbiology, 1, Selskaya str., 690087 Vladivostok, Russian Federation
| | - Lyudmila A Ivanushko
- G.P. Somov Scientific Research Institute of Epidemiology and Microbiology, 1, Selskaya str., 690087 Vladivostok, Russian Federation
| | - Svetlana P Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100 Let Vladivostoku, 690022 Vladivostok, Russian Federation
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17
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Nielsen MS, Mikkelsen MD, Ptak SH, Hejbøl EK, Ohmes J, Thi TN, Nguyen Ha VT, Fretté X, Fuchs S, Meyer A, Schrøder HD, Ding M. Efficacy of marine bioactive compound fucoidan for bone regeneration and implant fixation in sheep. J Biomed Mater Res A 2021; 110:861-872. [PMID: 34792851 DOI: 10.1002/jbm.a.37334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/05/2021] [Accepted: 11/09/2021] [Indexed: 12/15/2022]
Abstract
The need for a substitute for allograft and autograft is rising as bone graft surgeries exceed available supplies. We investigated the efficacy of the low-molecular weight marine bioactive compound fucoidan (FUC) on bone regeneration and implant fixation in seven female sheep, as FUC has shown great promise as a bone substitute. Titanium implants were inserted bilaterally in the distal femurs to test three hydroxyapatite/fucoidan (HA/FUC) groups and compared to allograft. The HA was coated with either 500 or 1500 μg of FUC, obtained by microwave-assisted chemical extraction, or 500 μg of FUC obtained by an enzyme-assisted extraction method. The concentric 2-mm gap around the implant was filled with either one of the HA/FUCs or allograft from the donor sheep. After 12 weeks, implant-bone blocks were harvested and divided into three parts for mechanical push-out testing, immunohistochemistry, and micro-CT and histomorphometry. Pronounced bone formations were observed by micro-CT and histomorphometry in all groups, but higher bone volume fractions were seen in the allograft group compared to the three HA/FUC groups. The trabecular thickness, trabecular separation, and architectural anisotropy were all significantly higher in the allograft group compared to the three HA/FUC groups. In conclusion, adequate bone formation was observed in all groups, although the bone formation was significantly greater in the allograft group. Also, no significant differences existed in the shear mechanical properties between groups, suggesting that the combination of HA and FUC can achieve a similar fixation strength to allograft in this model.
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Affiliation(s)
- Mads Suhr Nielsen
- Orthopedic Research laboratory, Department of Orthopedic Surgery and Traumatology, Odense University Hospital & Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Maria Dalgaard Mikkelsen
- DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Signe Helle Ptak
- SDU Chemical Engineering, Institute of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Odense, Denmark
| | - Eva Kildall Hejbøl
- Department of Pathology, Odense University Hospital & Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Julia Ohmes
- Experimental Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Thuan Nguyen Thi
- DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Vy Tran Nguyen Ha
- DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Xavier Fretté
- SDU Chemical Engineering, Institute of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Odense, Denmark
| | - Sabine Fuchs
- Experimental Trauma Surgery, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Anne Meyer
- DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Henrik Daa Schrøder
- Department of Pathology, Odense University Hospital & Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Ming Ding
- Orthopedic Research laboratory, Department of Orthopedic Surgery and Traumatology, Odense University Hospital & Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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18
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Yao Y, Yim EKF. Fucoidan for cardiovascular application and the factors mediating its activities. Carbohydr Polym 2021; 270:118347. [PMID: 34364596 PMCID: PMC10429693 DOI: 10.1016/j.carbpol.2021.118347] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/12/2021] [Accepted: 06/12/2021] [Indexed: 12/17/2022]
Abstract
Fucoidan is a sulfated polysaccharide with various bioactivities. The application of fucoidan in cancer treatment, wound healing, and food industry has been extensively studied. However, the therapeutic value of fucoidan in cardiovascular diseases has been less explored. Increasing number of investigations in the past years have demonstrated the effects of fucoidan on cardiovascular system. In this review, we will focus on the bioactivities related to cardiovascular applications, for example, the modulation functions of fucoidan on coagulation system, inflammation, and vascular cells. Factors mediating those activities will be discussed in detail. Current therapeutic strategies and future opportunities and challenges will be provided to inspire and guide further research.
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Affiliation(s)
- Yuan Yao
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| | - Evelyn K F Yim
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Biotechnology and Bioengineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
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19
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Dörschmann P, Apitz S, Hellige I, Neupane S, Alban S, Kopplin G, Ptak S, Fretté X, Roider J, Zille M, Klettner A. Evaluation of the Effects of Fucoidans from Fucus Species and Laminaria hyperborea against Oxidative Stress and Iron-Dependent Cell Death. Mar Drugs 2021; 19:557. [PMID: 34677456 PMCID: PMC8538076 DOI: 10.3390/md19100557] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 09/22/2021] [Indexed: 02/06/2023] Open
Abstract
Fucoidans are algal polysaccharides that exhibit protective properties against oxidative stress. The aim of this study was to investigate different fucoidans from brown seaweeds for their ability to protect against iron-dependent oxidative stress (ferroptosis), a main hallmark of retinal and brain diseases, including hemorrhage. We investigated five new high-molecular weight fucoidan extracts from Fucus vesiculosus, F. serratus, and F. distichus subsp. evanescens, a previously published Laminaria hyperborean extract, and commercially available extracts from F. vesiculosus and Undaria pinnatifida. We induced oxidative stress by glutathione depletion (erastin) and H2O2 in four retinal and neuronal cell lines as well as primary cortical neurons. Only extracts from F. serratus, F. distichus subsp. evanescens, and Laminaria hyperborea were partially protective against erastin-induced cell death in ARPE-19 and OMM-1 cells, while none of the extracts showed beneficial effects in neuronal cells. Protective fucoidans also attenuated the decrease in protein levels of the antioxidant enzyme GPX4, a key regulator of ferroptosis. This comprehensive analysis demonstrates that the antioxidant abilities of fucoidans may be cell type-specific, besides depending on the algal species and extraction method. Future studies are needed to further characterize the health-benefiting effects of fucoidans and to determine the exact mechanism underlying their antioxidative abilities.
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Affiliation(s)
- Philipp Dörschmann
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany; (P.D.); (S.A.); (J.R.)
| | - Sarah Apitz
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany; (P.D.); (S.A.); (J.R.)
| | - Inga Hellige
- Fraunhofer Research and Development Center for Marine and Cellular Biotechnology EMB, Mönkhofer Weg 239a, 23562 Lübeck, Germany; (I.H.); (M.Z.)
- Institute for Medical and Marine Biotechnology, University of Lübeck, Mönkhofer Weg 239a, 23562 Lübeck, Germany
| | - Sandesh Neupane
- Pharmaceutical Institute, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany; (S.N.); (S.A.)
| | - Susanne Alban
- Pharmaceutical Institute, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany; (S.N.); (S.A.)
| | - Georg Kopplin
- Alginor ASA, Haraldsgata 162, 5525 Haugesund, Norway;
| | - Signe Ptak
- Department of Chemical Engineering, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark; (S.P.); (X.F.)
| | - Xavier Fretté
- Department of Chemical Engineering, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark; (S.P.); (X.F.)
| | - Johann Roider
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany; (P.D.); (S.A.); (J.R.)
| | - Marietta Zille
- Fraunhofer Research and Development Center for Marine and Cellular Biotechnology EMB, Mönkhofer Weg 239a, 23562 Lübeck, Germany; (I.H.); (M.Z.)
- Institute for Medical and Marine Biotechnology, University of Lübeck, Mönkhofer Weg 239a, 23562 Lübeck, Germany
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, UZA II, Althanstraße 14, 1090 Vienna, Austria
| | - Alexa Klettner
- Department of Ophthalmology, University Medical Center, University of Kiel, Arnold-Heller-Str. 3, Haus 25, 24105 Kiel, Germany; (P.D.); (S.A.); (J.R.)
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20
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Karam MB, El Khoury J, Chakar C, Changotade S, Lutomski D, Naaman N, Godeau G, Elm’selmi A, Younes R, Senni K. Heparan-mimetics: Potential agents of tissue regeneration for bone and periodontal therapies. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2021. [DOI: 10.1016/j.medntd.2021.100066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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21
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Krueger K, Boehme E, Klettner AK, Zille M. The potential of marine resources for retinal diseases: a systematic review of the molecular mechanisms. Crit Rev Food Sci Nutr 2021; 62:7518-7560. [PMID: 33970706 DOI: 10.1080/10408398.2021.1915242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We rely on vision more than on any other sense to obtain information about our environment. Hence, the loss or even impairment of vision profoundly affects our quality of life. Diet or food components have already demonstrated beneficial effects on the development of retinal diseases. Recently, there has been a growing interest in resources from marine animals and plants for the prevention of retinal diseases through nutrition. Especially fish intake and omega-3 fatty acids have already led to promising results, including associations with a reduced incidence of retinal diseases. However, the underlying molecular mechanisms are insufficiently explained. The aim of this review was to summarize the known mechanistic effects of marine resources on the pathophysiological processes in retinal diseases. We performed a systematic literature review following the PRISMA guidelines and identified 107 studies investigating marine resources in the context of retinal diseases. Of these, 46 studies described the underlying mechanisms including anti-inflammatory, antioxidant, antiangiogenic/vasoprotective, cytoprotective, metabolic, and retinal function effects, which we critically summarize. We further discuss perspectives on the use of marine resources for human nutrition to prevent retinal diseases with a particular focus on regulatory aspects, health claims, safety, and bioavailability.
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Affiliation(s)
- Kristin Krueger
- Department of Marine Biotechnology, Fraunhofer Research and Development Center for Marine and Cellular Biotechnology EMB, Lübeck, Germany
| | - Elke Boehme
- Department of Marine Biotechnology, Fraunhofer Research and Development Center for Marine and Cellular Biotechnology EMB, Lübeck, Germany
| | - Alexa Karina Klettner
- Department of Ophthalmology, University Medical Center, University of Kiel, Quincke Research Center, Kiel, Germany
| | - Marietta Zille
- Department of Marine Biotechnology, Fraunhofer Research and Development Center for Marine and Cellular Biotechnology EMB, Lübeck, Germany.,Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
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22
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Reys LL, Silva SS, Oliveira C, Neves NM, Martins A, Reis RL, Silva TH. Angiogenic potential of airbrushed fucoidan/polycaprolactone nanofibrous meshes. Int J Biol Macromol 2021; 183:695-706. [PMID: 33932419 DOI: 10.1016/j.ijbiomac.2021.04.166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 01/24/2023]
Abstract
Implantation of biomaterials and hybrid constructs in tissue engineering approaches presents major limitations such as inflammatory reaction and the lack of vasculature integration. Therefore, new strategies are needed to enhance implant function, immune protection, and revascularization. In this work, we developed fibrous meshes composed of fucoidan (Fu), a sulfated polysaccharide extracted from brown algae, and polycaprolactone (PCL), a synthetic biodegradable polymer, using the airbrush technique. The chemical characterization by FTIR, EDS, and XPS confirmed the presence of the two polymers in the structure of airbrushed nanofibrous meshes (ANFM). Moreover, these nanofibrous exhibited good wettability and mechanical properties envisaging their application as templates for biomaterials and cell culture. The developed ANFM were directly cultured with human pulmonary microvascular endothelial (HPMEC-ST1.6R) cells for up to 7 days. Biological results demonstrated that ANFM comprising Fu promoted cellular attachment, spreading, and proliferation of human endothelial cells. The angiogenic potential of ANFM was further evaluated by onplantation of PCL and PCL/Fu ANFM in chick chorioallantoic membrane (CAM). In ovo and ex ovo results showed that the incorporation of Fu increased the pro-angiogenic potential of ANFM. Altogether, the results suggest that airbrush biocomposite meshes could be used as a biomaterial substrate to promote vascularization.
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Affiliation(s)
- Lara L Reys
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Simone S Silva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Catarina Oliveira
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Nuno M Neves
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Albino Martins
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Tiago H Silva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal.
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23
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Amador-Castro F, García-Cayuela T, Alper HS, Rodriguez-Martinez V, Carrillo-Nieves D. Valorization of pelagic sargassum biomass into sustainable applications: Current trends and challenges. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 283:112013. [PMID: 33508553 DOI: 10.1016/j.jenvman.2021.112013] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/15/2021] [Accepted: 01/16/2021] [Indexed: 06/12/2023]
Abstract
Since long ago, pelagic Sargassum mats have been known to be abundant in the Sargasso Sea, where they provide habitat to diverse organisms. However, over the last few years, massive amounts of pelagic Sargassum have reached the coast of several countries in the Caribbean and West Africa, causing economic and environmental problems. Aiming for lessening the impacts of the blooms, governments and private companies remove the seaweeds from the shore, but this process results expensive. The valorization of this abundant biomass can render Sargassum tides into an economic opportunity and concurrently solve their associated environmental problems. Despite the diverse fields where algae have found applications and the relevance of this recurrent situation, Sargassum biomass remains without large scale applications. Therefore, this review aims to present the potential uses of these algae, identifying the limitations that must be assessed to effectively valorize this bioresource. Due to the constraints identified for each of the presented applications, it is concluded that a biorefinery approach should be developed to effectively valorize this abundant biomass. However, there is an urgent need for investigations focusing on holopelagic Sargassum to be able to truly valorize this seaweed.
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Affiliation(s)
- Fernando Amador-Castro
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramon Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Tomás García-Cayuela
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramon Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Hal S Alper
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| | - Verónica Rodriguez-Martinez
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramon Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Danay Carrillo-Nieves
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramon Corona No. 2514, 45201, Zapopan, Jal., Mexico.
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24
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Wang F, Xiao Y, Neupane S, Ptak SH, Römer R, Xiong J, Ohmes J, Seekamp A, Fretté X, Alban S, Fuchs S. Influence of Fucoidan Extracts from Different Fucus Species on Adult Stem Cells and Molecular Mediators in In Vitro Models for Bone Formation and Vascularization. Mar Drugs 2021; 19:194. [PMID: 33805470 PMCID: PMC8066524 DOI: 10.3390/md19040194] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 01/03/2023] Open
Abstract
Fucoidans, sulfated polysaccharides extracted from brown algae, are marine products with the potential to modulate bone formation and vascularization processes. The bioactivity and safety of fucoidans are highly associated with their chemical structure, which may vary with algae species and extraction method. Thus, in depth evaluation of fucoidan extracts in terms of endotoxin content, cytotoxicity, and their detailed molecular biological impact on the individual cell types in bone is needed. In this study, we characterized fucoidan extracts from three different Fucus species including Fucus vesiculosus (Fv), Fucus serratus (Fs), and Fucus distichus subsp. evanescens (Fe) for their chemical features, endotoxin content, cytotoxicity, and bioactive effects on human outgrowth endothelial cells (OEC) and human mesenchymal stem cells (MSC) as in vitro models for bone function and vascularization. Extracts contained mainly high molecular weight (HMW) fucoidans and were free of endotoxins that may cause inflammation or influence vascularization. OEC tolerated fucoidan concentrations up to 200 µg/mL, and no indication of cytotoxicity was observed. The inflammatory response, however, investigated by real-time PCR (RT-PCR) and enzyme-linked immunosorbent assay (ELISA) and endothelial barrier assessed by impedance measurement differed for the individual extracts. MSC in comparison with endothelial cells were more sensitive to fucoidans and showed partly reduced metabolic activity and proliferation at higher doses of fucoidans. Further results for MSC indicated impaired osteogenic functions in alkaline phosphatase and calcification assays. All tested extracts consistently lowered important molecular mediators involved in angiogenesis, such a VEGF (vascular endothelial growth factor), ANG-1 (angiopoietin 1), and ANG-2 (angiopoietin 2), as indicated by RT-PCR and ELISA. This was associated with antiangiogenic effects at the functional level using selected extracts in co-culture models to mimic bone vascularization processes during bone regeneration or osteosarcoma.
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Affiliation(s)
- Fanlu Wang
- Experimental Trauma Surgery, Department of Orthopedics and Trauma Surgery, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany; (F.W.); (Y.X.); (R.R.); (J.X.); (J.O.); (A.S.)
| | - Yuejun Xiao
- Experimental Trauma Surgery, Department of Orthopedics and Trauma Surgery, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany; (F.W.); (Y.X.); (R.R.); (J.X.); (J.O.); (A.S.)
| | - Sandesh Neupane
- Department of Pharmaceutical Biology, Pharmaceutical Institute, Kiel University, 24148 Kiel, Germany; (S.N.); (S.A.)
| | - Signe Helle Ptak
- SDU Chemical Engineering, University of Southern Denmark, 5230 Odense, Denmark; (S.H.P.); (X.F.)
| | - Ramona Römer
- Experimental Trauma Surgery, Department of Orthopedics and Trauma Surgery, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany; (F.W.); (Y.X.); (R.R.); (J.X.); (J.O.); (A.S.)
| | - Junyu Xiong
- Experimental Trauma Surgery, Department of Orthopedics and Trauma Surgery, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany; (F.W.); (Y.X.); (R.R.); (J.X.); (J.O.); (A.S.)
| | - Julia Ohmes
- Experimental Trauma Surgery, Department of Orthopedics and Trauma Surgery, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany; (F.W.); (Y.X.); (R.R.); (J.X.); (J.O.); (A.S.)
| | - Andreas Seekamp
- Experimental Trauma Surgery, Department of Orthopedics and Trauma Surgery, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany; (F.W.); (Y.X.); (R.R.); (J.X.); (J.O.); (A.S.)
| | - Xavier Fretté
- SDU Chemical Engineering, University of Southern Denmark, 5230 Odense, Denmark; (S.H.P.); (X.F.)
| | - Susanne Alban
- Department of Pharmaceutical Biology, Pharmaceutical Institute, Kiel University, 24148 Kiel, Germany; (S.N.); (S.A.)
| | - Sabine Fuchs
- Experimental Trauma Surgery, Department of Orthopedics and Trauma Surgery, University Medical Center Schleswig-Holstein, 24105 Kiel, Germany; (F.W.); (Y.X.); (R.R.); (J.X.); (J.O.); (A.S.)
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Dörschmann P, Klettner A. Fucoidans as Potential Therapeutics for Age-Related Macular Degeneration-Current Evidence from In Vitro Research. Int J Mol Sci 2020; 21:E9272. [PMID: 33291752 PMCID: PMC7729934 DOI: 10.3390/ijms21239272] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 02/06/2023] Open
Abstract
Age-related macular degeneration (AMD) is the major reason for blindness in the industrialized world with limited treatment options. Important pathogenic pathways in AMD include oxidative stress and vascular endothelial growth factor (VEGF) secretion. Due to their bioactivities, fucoidans have recently been suggested as potential therapeutics. This review gives an overview of the recent developments in this field. Recent studies have characterized several fucoidans from different species, with different molecular characteristics and different extraction methods, in regard to their ability to reduce oxidative stress and inhibit VEGF in AMD-relevant in vitro systems. As shown in these studies, fucoidans exhibit a species dependency in their bioactivity. Additionally, molecular properties such as molecular weight and fucose content are important issues. Fucoidans from Saccharina latissima and Laminaria hyperborea were identified as the most promising candidates for further development. Further research is warranted to establish fucoidans as potential therapeutics for AMD.
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Affiliation(s)
| | - Alexa Klettner
- Department of Ophthalmology, Campus Kiel, University Medical Center Schleswig-Holstein UKSH, 24105 Kiel, Germany;
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Zayed A, Ulber R. Fucoidans: Downstream Processes and Recent Applications. Mar Drugs 2020; 18:E170. [PMID: 32197549 PMCID: PMC7142712 DOI: 10.3390/md18030170] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/14/2020] [Accepted: 03/15/2020] [Indexed: 02/06/2023] Open
Abstract
Fucoidans are multifunctional marine macromolecules that are subjected to numerous and various downstream processes during their production. These processes were considered the most important abiotic factors affecting fucoidan chemical skeletons, quality, physicochemical properties, biological properties and industrial applications. Since a universal protocol for fucoidans production has not been established yet, all the currently used processes were presented and justified. The current article complements our previous articles in the fucoidans field, provides an updated overview regarding the different downstream processes, including pre-treatment, extraction, purification and enzymatic modification processes, and shows the recent non-traditional applications of fucoidans in relation to their characters.
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Affiliation(s)
- Ahmed Zayed
- Institute of Bioprocess Engineering, Technical University of Kaiserslautern, Gottlieb-Daimler-Straße 49, 67663 Kaiserslautern, Germany;
- Department of Pharmacognosy, Tanta University, College of Pharmacy, El Guish Street, Tanta 31527, Egypt
| | - Roland Ulber
- Institute of Bioprocess Engineering, Technical University of Kaiserslautern, Gottlieb-Daimler-Straße 49, 67663 Kaiserslautern, Germany;
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Etman SM, Elnaggar YS, Abdallah OY. “Fucoidan, a natural biopolymer in cancer combating: From edible algae to nanocarrier tailoring”. Int J Biol Macromol 2020; 147:799-808. [DOI: 10.1016/j.ijbiomac.2019.11.191] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/04/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023]
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Micro RNA Expression after Ingestion of Fucoidan; A Clinical Study. Mar Drugs 2020; 18:md18030143. [PMID: 32121066 PMCID: PMC7143719 DOI: 10.3390/md18030143] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 02/26/2020] [Accepted: 02/26/2020] [Indexed: 12/12/2022] Open
Abstract
Fucoidans are a class of fucose-rich sulfated polysaccharides derived from brown macroalgae that exert a range of biological activities in vitro and in vivo. To generate an unbiased assessment of pathways and processes affected by fucoidan, a placebo-controlled double-blind pilot study was performed in healthy volunteers. Blood samples were taken immediately before and 24 h after ingestion of a single dose of 1 g of Undaria pinnatifida fucoidan (UPF) or placebo. Levels of isolated miRNAs were analyzed using Taqman Open Array Human MicroRNA panels. Out of 754 miRNAs screened, UPF affected a total of 53 miRNAs. Pathway analysis using the TALOS data analysis tool predicted 29 different pathways and processes that were largely grouped into cell surface receptor signaling, cancer-related pathways, the majority of which were previously associated with fucoidans. However, this analysis also identified nine pathways and processes that have not been associated with fucoidans before. Overall, this study illustrates that even a single dose of fucoidans has the potential to affect the expression of genes related to fundamental cellular processes. Moreover, it confirms previous data that fucoidans influence immunity, cancer cells, inflammation, and neurological function.
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Torres M, Flórez-Fernández N, Simón-Vázquez R, Giménez-Abián J, Díaz J, González-Fernández Á, Domínguez H. Fucoidans: The importance of processing on their anti-tumoral properties. ALGAL RES 2020. [DOI: 10.1016/j.algal.2019.101748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Suprunchuk VE. Low-molecular-weight fucoidan: Chemical modification, synthesis of its oligomeric fragments and mimetics. Carbohydr Res 2019; 485:107806. [DOI: 10.1016/j.carres.2019.107806] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/05/2019] [Accepted: 09/05/2019] [Indexed: 01/18/2023]
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Oliveira C, Granja S, Neves NM, Reis RL, Baltazar F, Silva TH, Martins A. Fucoidan from Fucus vesiculosus inhibits new blood vessel formation and breast tumor growth in vivo. Carbohydr Polym 2019; 223:115034. [PMID: 31426965 DOI: 10.1016/j.carbpol.2019.115034] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/30/2019] [Accepted: 06/26/2019] [Indexed: 12/21/2022]
Abstract
Fucoidan is a marine-origin sulfated polysaccharide that can show anticancer activity, to which both pro- and anti-angiogenic responses have been reported. Due to this unpredictability, the angiogenic potential of an effective anticancer crude fucoidan (CF), at a concentration of 0.5 mg mL-1, was evaluated. Tube formation assays demonstrated that CF, either administered while endothelial cells seeding or after their adhesion, migration and organization, inhibited or disrupted the formation of tubular-like structures, respectively. Although CF did not significantly reduced vascular endothelial growth factor (VEGF) secretion, it significantly reduced the expression of platelet-derived growth factor (PDGF), compromising the blood vessels maturation. Two chicken embryo chorioallantoic membrane (CAM) assays were performed: one without tumor (CAM I) and the other with an onplanted tumor mass (CAM II); the CF injection reduced the number of blood of vessels and significantly decreased the tumor size, respectively. In vitro and in vivo results support the effectiveness of fucoidan as a natural antitumor therapeutic agent.
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Affiliation(s)
- Catarina Oliveira
- 3B´s Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Sara Granja
- ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| | - Nuno M Neves
- 3B´s Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017, Barco, Guimarães, Portugal
| | - Rui L Reis
- 3B´s Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017, Barco, Guimarães, Portugal
| | - Fátima Baltazar
- ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| | - Tiago H Silva
- 3B´s Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Albino Martins
- 3B´s Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal.
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Rohwer K, Neupane S, Bittkau KS, Pérez MG, Dörschmann P, Roider J, Alban S, Klettner A. Effects of Crude Fucus distichus Subspecies evanescens Fucoidan Extract on Retinal Pigment Epithelium Cells-Implications for Use in Age-Related Macular Degeneration. Mar Drugs 2019; 17:E538. [PMID: 31527536 PMCID: PMC6780902 DOI: 10.3390/md17090538] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 08/29/2019] [Accepted: 09/10/2019] [Indexed: 12/18/2022] Open
Abstract
Fucoidan extracts may have beneficial effects in age-related macular degeneration(AMD). Over-the-counter fucoidan preparations are generally undefined, crude extracts. In thisstudy, we investigated the effect of a crude fucoidan extract from Fucus distichus subspeciesevanescens (Fe) on the retinal pigment epithelium (RPE). Fe extract was investigated for chemicalcomposition and molar mass. It was tested in primary RPE and RPE cell line ARPE19. Oxidativestress was induced with tert-butyl hydroperoxide, cell viability evaluated with MTT assay, VEGFsecretion assessed in ELISA. Phagocytosis was evaluated in a fluorescence microscopic assay.Wound healing ability was tested in a scratch assay. Additionally, the inhibition of elastase andcomplement system by Fe extract was studied. The Fe extract contained about 61.9% fucose andhigh amounts of uronic acids (26.2%). The sulfate content was not as high as expected (6.9%). It wasnot toxic and not protective against oxidative stress. However, Fe extract was able to reduce VEGFsecretion in ARPE19. Phagocytosis was also reduced. Concerning wound healing, a delay could beobserved in higher concentrations. While some beneficial effects could be found, it seems tointerfere with RPE function, which may reduce its beneficial effects in AMD treatment.
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Affiliation(s)
- Kevin Rohwer
- Department of Ophthalmology, University Medical Center, University of Kiel, 24105 Kiel, Germany; (K.R.); (P.D.); (J.R.)
| | - Sandesh Neupane
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Kiel, 24105 Kiel, Germany; (S.N.); (K.S.B.); (M.G.P.); (S.A.)
| | - Kaya Saskia Bittkau
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Kiel, 24105 Kiel, Germany; (S.N.); (K.S.B.); (M.G.P.); (S.A.)
| | - Mayra Galarza Pérez
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Kiel, 24105 Kiel, Germany; (S.N.); (K.S.B.); (M.G.P.); (S.A.)
| | - Philipp Dörschmann
- Department of Ophthalmology, University Medical Center, University of Kiel, 24105 Kiel, Germany; (K.R.); (P.D.); (J.R.)
| | - Johann Roider
- Department of Ophthalmology, University Medical Center, University of Kiel, 24105 Kiel, Germany; (K.R.); (P.D.); (J.R.)
| | - Susanne Alban
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Kiel, 24105 Kiel, Germany; (S.N.); (K.S.B.); (M.G.P.); (S.A.)
| | - Alexa Klettner
- Department of Ophthalmology, University Medical Center, University of Kiel, 24105 Kiel, Germany; (K.R.); (P.D.); (J.R.)
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Rohman G, Langueh C, Ramtani S, Lataillade JJ, Lutomski D, Senni K, Changotade S. The Use of Platelet-Rich Plasma to Promote Cell Recruitment into Low-Molecular-Weight Fucoidan-Functionalized Poly(Ester-Urea-Urethane) Scaffolds for Soft-Tissue Engineering. Polymers (Basel) 2019; 11:E1016. [PMID: 31181822 PMCID: PMC6631166 DOI: 10.3390/polym11061016] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 05/23/2019] [Accepted: 06/07/2019] [Indexed: 01/12/2023] Open
Abstract
Due to their elastomeric behavior, polyurethane-based scaffolds can find various applications in soft-tissue engineering. However, their relatively inert surface has to be modified in order to improve cell colonization and control cell fate. The present study focuses on porous biodegradable scaffolds based on poly(ester-urea-urethane), functionalized concomitantly to the scaffold elaboration with low-molecular-weight (LMW) fucoidan; and their bio-activation with platelet rich plasma (PRP) formulations with the aim to promote cell response. The LMW fucoidan-functionalization was obtained in a very homogeneous way, and was stable after the scaffold sterilization and incubation in phosphate-buffered saline. Biomolecules from PRP readily penetrated into the functionalized scaffold, leading to a biological frame on the pore walls. Preliminary in vitro assays were assessed to demonstrate the improvement of scaffold behavior towards cell response. The scaffold bio-activation drastically improved cell migration. Moreover, cells interacted with all pore sides into the bio-activated scaffold forming cell bridges across pores. Our work brought out an easy and versatile way of developing functionalized and bio-activated elastomeric poly(ester-urea-urethane) scaffolds with a better cell response.
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Affiliation(s)
- Géraldine Rohman
- Tissue Engineering and Proteomics (TIP) team, CSPBAT UMR CNRS 7244, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93000 Bobigny, France.
| | - Credson Langueh
- Tissue Engineering and Proteomics (TIP) team, CSPBAT UMR CNRS 7244, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93000 Bobigny, France.
| | - Salah Ramtani
- LBPS team, CSPBAT UMR CNRS 7244, Université Paris 13, Sorbonne Paris Cité, 99 avenue Jean-Baptiste Clément, 93430 Villetaneuse, France.
| | - Jean-Jacques Lataillade
- Institut de Recherche Biomédicale des Armées, Unité de Thérapie Cellulaire et Réparation Tissulaire, Site du Centre de Transfusion Sanguine des Armées "Jean Julliard" de Clamart, BP 73, 91223 Brétigny-sur-Orge Cedex, France.
| | - Didier Lutomski
- Tissue Engineering and Proteomics (TIP) team, CSPBAT UMR CNRS 7244, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93000 Bobigny, France.
| | - Karim Senni
- Ecole de biologie Industrielle, 49 avenue des Genottes, 95885 Cergy Cedex, France.
| | - Sylvie Changotade
- Tissue Engineering and Proteomics (TIP) team, CSPBAT UMR CNRS 7244, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93000 Bobigny, France.
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Hsu HY, Hwang PA. Clinical applications of fucoidan in translational medicine for adjuvant cancer therapy. Clin Transl Med 2019; 8:15. [PMID: 31041568 PMCID: PMC6491526 DOI: 10.1186/s40169-019-0234-9] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/11/2019] [Indexed: 01/01/2023] Open
Abstract
The chemical composition of fucoidan, a kind of sulfated polysaccharide mainly derived from brown seaweed, includes a substantial percentage of l-fucose. Fucoidan has various biological and pharmacological activities, such as anti-cancer/anti-tumor, anti-proliferation, anti-inflammatory and immune-modulatory functions, and fucoidan-related dietary supplements and nutraceuticals have recently drawn considerable attention. In this review, we aim to provide a current view of different aspects of fucoidan biological activity, with a focus on the anti-cancer regulatory effects of fucoidan on growth signaling mechanisms. First, we discuss historical aspects of fucoidan and fucoidan products, as well as the anti-cancer effects of fucoidan on various cancer cells. Second, we discuss fucoidan’s biological activities and induction of cell death in cancer cells, including multiple mechanisms and signal transduction pathways related to its anti-cancer effects. Next, we focus on fucoidan and fucoidan-derived products that have been marketed as dietary supplements or nutraceuticals for cancer, including anti-cancer effects of fucoidan when combined as an adjuvant with clinical drugs. Finally, case studies of fucoidan in complementary therapy and as an alternative medicine in animal and mouse models and human clinical trials to alleviate side effects of anti-cancer chemotherapy are discussed. Combining fucoidan with clinical therapeutic agents in the treatment of cancer patients, dissecting the related signal transduction pathways and investigating their dynamic interactions may reveal potential molecular targets in cancer prevention, therapies and key obstacles in the current development of anti-cancer strategies.
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Affiliation(s)
- Hsien-Yeh Hsu
- Institute of Taiwan Fucoidan Development, 1F, No. 123-1, Sec. 4, Bade Rd., Songshan Dist., Taipei, 105, Taiwan. .,Department of Biotechnology and Laboratory Science in Medicine, Institute of Biotechnology in Medicine, National Yang-Ming University, 155 Li-Nong Street, Shih-Pai, Taipei, Taiwan.
| | - Pai-An Hwang
- Institute of Taiwan Fucoidan Development, 1F, No. 123-1, Sec. 4, Bade Rd., Songshan Dist., Taipei, 105, Taiwan.,Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City, Taiwan
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Wei X, Cai L, Liu H, Tu H, Xu X, Zhou F, Zhang L. Chain conformation and biological activities of hyperbranched fucoidan derived from brown algae and its desulfated derivative. Carbohydr Polym 2019; 208:86-96. [PMID: 30658835 DOI: 10.1016/j.carbpol.2018.12.060] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/12/2018] [Accepted: 12/18/2018] [Indexed: 11/29/2022]
Abstract
A fucoidan derived from marine brown algae has great potential in biomedical filed. Herein, the fucoidan was successfully isolated and purified by using chitosan microspheres, resulting in the sulfate fucoidan (CF) with degree of sulfation (DS) of 0.94. CF was identified to be highly branched, consisting of fucose (77.4%) and galactose (13.9%), etc., supported by the results of GCMS and light scattering with the structure-sensitive parameter of 0.98 in 0.15 M aqueous NaNO3. The individual CF and its desulfated derivative chains adopted sphere-like conformation in water, observed by atomic force microscopy. CF exhibited higher antiangiogenesis than the desulfated one and strong antileukemia activities through inhibiting cell proliferation and inducing cell apoptosis via cell cycle arrest at G1 phase in vitro. This work provided important information that ester sulfate groups of polysaccharide played an important role in the enhancing of bioactivities of fucoidan, and put forward to a potential drug to treat acute myelocytic leukemia (AML) and tumors.
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Affiliation(s)
- Xueqin Wei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Liqin Cai
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Hailing Liu
- Department of Hematology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Honglei Tu
- Department of Hematology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
| | - Fuling Zhou
- Department of Hematology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
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Bouissil S, Pierre G, Alaoui-Talibi ZE, Michaud P, El Modafar C, Delattre C. Applications of Algal Polysaccharides and Derivatives in Therapeutic and Agricultural Fields. Curr Pharm Des 2019; 25:1187-1199. [PMID: 31465279 DOI: 10.2174/1381612825666190425162729] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/15/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Recently, researchers have given more and more consideration to natural polysaccharides thanks to their huge properties such as stability, biodegradability and biocompatibility for food and therapeutics applications. METHODS a number of enzymatic and chemical processes were performed to generate bioactive molecules, such as low molecular weight fractions and oligosaccharides derivatives from algal polysaccharides. RESULTS These considerable characteristics allow algal polysaccharides and their derivatives such as low molecular weight polymers and oligosaccharides structures to have great potential to be used in lots of domains, such as pharmaceutics and agriculture etc. Conclusion: The present review describes the mains polysaccharides structures from Algae and focuses on the currents agricultural (fertilizer, bio-elicitor, stimulators, signaling molecules and activators) and pharmaceutical (wound dressing, tissues engineering and drugs delivery) applications by using polysaccharides and/or their oligosaccharides derivatives obtained by chemical, physical and enzymatic processes.
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Affiliation(s)
- Soukaina Bouissil
- Universite Cadi Ayyad, Laboratoire de Biotechnologie et Bioingenierie Moleculaire, Faculte des Sciences et Techniques, Marrakech, Morocco
- Universite Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Guillaume Pierre
- Universite Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Zainab El Alaoui-Talibi
- Universite Cadi Ayyad, Laboratoire de Biotechnologie et Bioingenierie Moleculaire, Faculte des Sciences et Techniques, Marrakech, Morocco
| | - Philippe Michaud
- Universite Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - C El Modafar
- Universite Cadi Ayyad, Laboratoire de Biotechnologie et Bioingenierie Moleculaire, Faculte des Sciences et Techniques, Marrakech, Morocco
| | - Cedric Delattre
- Universite Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
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Kopplin G, Rokstad AM, Mélida H, Bulone V, Skjåk-Bræk G, Aachmann FL. Structural Characterization of Fucoidan from Laminaria hyperborea: Assessment of Coagulation and Inflammatory Properties and Their Structure–Function Relationship. ACS APPLIED BIO MATERIALS 2018; 1:1880-1892. [DOI: 10.1021/acsabm.8b00436] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Georg Kopplin
- Norwegian Biopolymer Laboratory (NOBIPOL), Department of Biotechnology, NTNU, Trondheim 7491, Norway
| | - Anne Mari Rokstad
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, NTNU, Trondheim 7030, Norway
| | - Hugo Mélida
- Division of Glycoscience, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), Stockholm SE-10691, Sweden
| | - Vincent Bulone
- Division of Glycoscience, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), Stockholm SE-10691, Sweden
| | - Gudmund Skjåk-Bræk
- Norwegian Biopolymer Laboratory (NOBIPOL), Department of Biotechnology, NTNU, Trondheim 7491, Norway
| | - Finn Lillelund Aachmann
- Norwegian Biopolymer Laboratory (NOBIPOL), Department of Biotechnology, NTNU, Trondheim 7491, Norway
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Catarino MD, Silva AMS, Cardoso SM. Phycochemical Constituents and Biological Activities of Fucus spp. Mar Drugs 2018; 16:E249. [PMID: 30060505 PMCID: PMC6117670 DOI: 10.3390/md16080249] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/20/2018] [Accepted: 07/23/2018] [Indexed: 12/27/2022] Open
Abstract
Seaweeds are known to be a good supply of key nutrients including carbohydrates, protein, minerals, polyunsaturated lipids, as well as several other health-promoting compounds capable of acting on a wide spectrum of disorders and/or diseases. While these marine macroalgae are deeply rooted in the East Asian culture and dietary habits, their major application in Western countries has been in the phycocolloid industry. This scenario has however been gradually changing, since seaweed consumption is becoming more common worldwide. Among the numerous edible seaweeds, members of the genus Fucus have a high nutritional value and are considered good sources of dietary fibers and minerals, especially iodine. Additionally, their wealth of bioactive compounds such as fucoidan, phlorotannins, fucoxanthin and others make them strong candidates for multiple therapeutic applications (e.g., antioxidant, anti-inflammatory, anti-tumor, anti-obesity, anti-coagulant, anti-diabetes and others). This review presents an overview of the nutritional and phytochemical composition of Fucus spp., and their claimed biological activities, as well as the beneficial effects associated to their consumption. Furthermore, the use of Fucus seaweeds and/or their components as functional ingredients for formulation of novel and enhanced foods is also discussed.
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Affiliation(s)
- Marcelo D Catarino
- Department of Chemistry & Organic Chemistry, Natural Products and Food Stuffs Research Unit (QOPNA), University of Aveiro, Aveiro 3810-193, Portugal.
| | - Artur M S Silva
- Department of Chemistry & Organic Chemistry, Natural Products and Food Stuffs Research Unit (QOPNA), University of Aveiro, Aveiro 3810-193, Portugal.
| | - Susana M Cardoso
- Department of Chemistry & Organic Chemistry, Natural Products and Food Stuffs Research Unit (QOPNA), University of Aveiro, Aveiro 3810-193, Portugal.
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Lahrsen E, Schoenfeld AK, Alban S. Size-dependent pharmacological activities of differently degraded fucoidan fractions from Fucus vesiculosus. Carbohydr Polym 2018; 189:162-168. [PMID: 29580394 DOI: 10.1016/j.carbpol.2018.02.035] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 02/08/2018] [Accepted: 02/11/2018] [Indexed: 12/15/2022]
Abstract
Fucose-containing sulfated glycans (syn. fucoidans) from brown algae exhibit a wide range of bioactivities and are therefore considered promising candidates for health-supporting and medical applications. In this study, we investigated the pharmacological activities of fucoidan from Fucus vesiculosus and 18 gradually depolymerized fractions, which were obtained by hydrothermal and H2O2 treatment, respectively. All the activities decreased with decreasing molecular mass (Mw) but to a different extent resulting in some modified pharmacological profiles in dependence on the Mw as well as on the degradation method. H2O2 treatment was not only more efficient, simpler and cheaper than hydrothermal degradation, but also led to superior activity profiles and additionally eliminated co-extracted contaminants. Compared to heparin, the prime example of biologically active sulfated glycans, evenly sized H2O2 fractions exhibited considerable effects being relevant for anti-inflammatory activity, however only negligible anticoagulant activity and FXII activating potency. Due to their improved biopharmaceutical characteristics and favorable activities, degraded fucoidan fractions are worth to be further investigated as anti-inflammatory and anticomplementary agents.
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Affiliation(s)
- Eric Lahrsen
- Pharmaceutical Institute, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany.
| | | | - Susanne Alban
- Pharmaceutical Institute, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany.
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Menezes MM, Nobre LTDB, Rossi GR, Almeida-Lima J, Melo-Silveira RF, Franco CRC, Trindade ES, Nader HB, Rocha HAO. A low-molecular-weight galactofucan from the seaweed, Spatoglossum schröederi, binds fibronectin and inhibits capillary-like tube formation in vitro. Int J Biol Macromol 2018; 111:1067-1075. [PMID: 29366897 DOI: 10.1016/j.ijbiomac.2018.01.119] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 12/13/2017] [Accepted: 01/17/2018] [Indexed: 01/13/2023]
Abstract
A low-molecular-weight (LMW) heterofucan (designated fucan B) was obtained from the brown seaweed, Spatoglossum schröederi, and its activity as an inhibitor of capillary-like tube formation by endothelial cells (ECs) was analyzed. Chemical, infrared and electrophoretic analyses confirmed the identity of fucan B. In contrast to other LMW fucans, fucan B (0.012-0.1 mg/mL) inhibited ECs capillary-like tube formation in a concentration-dependent manner. In addition, fucan B (0.01-0.05 mg/mL) did not affect ECs proliferation. Fucan B also inhibited ECs migration on a fibronectin-coated surface, but not on laminin- or collagen-coated surfaces. Biotinylated fucan B was used as a probe to identify its localization. Confocal microscopy experiments revealed that biotinylated fucan did not bind to the cell surface, but rather only to fibronectin. Our findings suggest that fucan B inhibits ECs capillary-like tube formation and migration by binding directly to fibronectin and blocking fibronectin sites recognized by cell surface ligands. However, further studies are needed to evaluate the in vivo effects of fucan B.
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Affiliation(s)
- Maira Maria Menezes
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte-RN, Brazil
| | - Leonardo Thiago Duarte Barreto Nobre
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte-RN, Brazil; Disciplina de Biologia Molecular, Universidade Federal de São Paulo, São Paulo-SP, Brazil
| | | | - Jailma Almeida-Lima
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte-RN, Brazil
| | - Raniere Fagundes Melo-Silveira
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte-RN, Brazil
| | | | | | - Helena Bonciani Nader
- Disciplina de Biologia Molecular, Universidade Federal de São Paulo, São Paulo-SP, Brazil
| | - Hugo Alexandre Oliveira Rocha
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte-RN, Brazil.
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Geng L, Hou N, Zhang M, Xu Y, Zhang Q, Wang J, Zhang L, Zhang Q. Comparative study of the effect of different fucoidans from Sargassum maclurei and Saccharina japonica on FGFs/FGFR signaling activation in BaF3 cells. Int J Biol Macromol 2018; 107:2429-2435. [PMID: 29055704 DOI: 10.1016/j.ijbiomac.2017.10.122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/03/2017] [Accepted: 10/18/2017] [Indexed: 01/21/2023]
Abstract
Different sulfated polysaccharides have distinct abilities to activate specific fibroblast growth factor (FGF) signaling pathways in FGFR1c-expressing BaF3 cells. In the current study, we first isolated and characterized different fucoidan fractions from Sargassum maclurei and Saccharina japonica. All of the fucoidan fractions were incubated with BaF3 cells in the presence of FGF-1, -2, -7, -8, -9, and -10, respectively, to evaluate their FGFs/FGFR1c signal-activating ability. Our data showed that low molecular weight fucoidan fraction from S. japonica with highest sulfate content (LMWF-2M) had the most potent activity among all of the six tested FGFs. Low sulfated heteropolysacchairde fraction LMWF-0.5M, along with SMP-1, SMP-D-1, and SMP-A-1, only activated the FGF-2/FGFR1c pair (P<0.05). In contrast, SMP, SMP-A, and SMP-D stimulated BaF3 cell proliferation except for FGF-8. Both LMWF-1M and LMWF-2M facilitated FGF-1-, -2-, -8-, and -9-based signaling. The sulfate content was the major contributing factor to the observed activity followed by the molecular weight. The monosaccharide composition also affected the activity, in that SMP and its derivatives with varied monosaccharide composition could not induce BaF3 cell proliferation in the presence of FGF-8. The structure-activity relationships revealed in current study provided useful information for the potential application of fucoidans in FGF/FGFR signaling regulation.
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Affiliation(s)
- Lihua Geng
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech., Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ningning Hou
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech., Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meng Zhang
- Institute of Cerebrovascular Diseases, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Yingjie Xu
- Institute of Cerebrovascular Diseases, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Qi Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech., Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lijuan Zhang
- Institute of Cerebrovascular Diseases, Affiliated Hospital of Qingdao University, Qingdao 266003, China.
| | - Quanbin Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Ustyuzhanina NE, Bilan MI, Dmitrenok AS, Borodina EY, Nifantiev NE, Usov AI. A highly regular fucan sulfate from the sea cucumber Stichopus horrens. Carbohydr Res 2018; 456:5-9. [DOI: 10.1016/j.carres.2017.12.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/27/2017] [Accepted: 12/06/2017] [Indexed: 10/18/2022]
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44
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Vereshchagin AN. Classical and interdisciplinary approaches to the design of organic and hybrid molecular systems. Russ Chem Bull 2018. [DOI: 10.1007/s11172-017-1950-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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45
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Deniaud-Bouët E, Hardouin K, Potin P, Kloareg B, Hervé C. A review about brown algal cell walls and fucose-containing sulfated polysaccharides: Cell wall context, biomedical properties and key research challenges. Carbohydr Polym 2017; 175:395-408. [PMID: 28917882 DOI: 10.1016/j.carbpol.2017.07.082] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/04/2017] [Accepted: 07/28/2017] [Indexed: 12/12/2022]
Abstract
Studies on brown algal cell walls have entered a new phase with the concomitant discovery of novel polysaccharides present in cell walls and the establishment of a comprehensive generic model for cell wall architecture. Brown algal cell walls are composites of structurally complex polysaccharides. In this review we discuss the most recent progress in the structural composition of brown algal cell walls, emphasizing the significance of extraction and screening techniques, and the biological activities of the corresponding polysaccharides, with a specific focus on the fucose-containing sulfated polysaccharides. They include valuable marine molecules that exert a broad range of pharmacological properties such as antioxidant and anti-inflammatory activities, functions in the regulation of immune responses and of haemostasis, anti-infectious and anticancer actions. We identify the key remaining challenges in this research field.
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Affiliation(s)
- Estelle Deniaud-Bouët
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France; CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France.
| | - Kevin Hardouin
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France; CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France.
| | - Philippe Potin
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France; CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France.
| | - Bernard Kloareg
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France; CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France.
| | - Cécile Hervé
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France; CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, Roscoff, France.
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Fucoidan and Fucosylated Chondroitin Sulfate Stimulate Hematopoiesis in Cyclophosphamide-Induced Mice. Mar Drugs 2017; 15:md15100301. [PMID: 28973980 PMCID: PMC5666409 DOI: 10.3390/md15100301] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/20/2017] [Accepted: 09/27/2017] [Indexed: 12/13/2022] Open
Abstract
Application of cytostatics in cancer patients’ chemotherapy results in a number of side effects, including the inhibition of various parts of hematopoiesis. Two sulfated polysaccharides, fucoidan from the seaweed Chordaria flagelliformis (PS-Fuc) and fucosylated chondroitin sulfate from the sea cucumber Massinium magnum (PS-FCS), were studied as stimulators of hematopoiesis after cyclophosphamide immunosuppression in mice. Recombinant granulocyte colony-stimulating factor (r G-CSF) was applied as a reference. Both tested polysaccharides PS-Fuc and PS-FCS have a similar activity to r G-CSF, causing pronounced neutropoiesis stimulation in animals with myelosuppression induced by cyclophosphamide (CPh). Moreover, these compounds are also capable to enhance thrombopoiesis and erythropoiesis. It should be noted that PS-FCS demonstrated a greater activity than r G-CSF. The results indicate the perspective of further studies of PS-Fuc and PS-FCS, since these compounds can be considered as potentially promising stimulators of hematopoiesis. Such drugs are in demand for the accompanying treatment of cancer patients who suffer from hematological toxicity during chemo and/or radiation therapy.
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Chen LM, Liu PY, Chen YA, Tseng HY, Shen PC, Hwang PA, Hsu HL. Oligo-Fucoidan prevents IL-6 and CCL2 production and cooperates with p53 to suppress ATM signaling and tumor progression. Sci Rep 2017; 7:11864. [PMID: 28928376 PMCID: PMC5605496 DOI: 10.1038/s41598-017-12111-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 09/05/2017] [Indexed: 01/07/2023] Open
Abstract
Low-molecular-weight Fucoidan (Oligo-Fucoidan) is a sulfated polysaccharide that has a variety of biological effects and has also been shown to have beneficial health effects. However, the molecular mechanisms underlying the therapeutic effects of Oligo-Fucoidan in patients with cancer remain unclear. Using human colorectal cancer HCT116 cells with (p53+/+) or without (p53−/−) normal p53 expression, we found that Oligo-Fucoidan treatment reduces the occurrence of spontaneous DNA lesions. Etoposide induces double strand DNA breaks. Subsequent administration of Oligo-Fucoidan to etoposide-treated cells promotes p53 accumulation, p21 expression and significant decreases in ataxia-telangiectasia-mutated (ATM), checkpoint kinase 1 (Chk1) and γ-H2AX phosphorylation in p53+/+ cells compared with p53−/− cells. Similarly, co-administration of Oligo-Fucoidan with etoposide inhibits ATM, Chk1 and γ-H2AX phosphorylation, particularly in the presence of p53. Furthermore, Oligo-Fucoidan supplementation increases cancer cell death and attenuates the adverse effects induced by etoposide that decreases production of the pro-inflammatory cytokine IL-6 and chemokine CCL2/MCP-1. Importantly, Oligo-Fucoidan decreases the tumor-promoting M2 macrophages in microenvironment as well as collaborates with p53 and works in combination with etoposide to prevent HCT116 tumorigenicity. Our results first demonstrate that p53 enables Oligo-Fucoidan to effectively inhibit tumor progression, and Oligo-Fucoidan minimizes the side effects of chemotherapy and alters tumor microenvironment.
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Affiliation(s)
- Li-Mei Chen
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Po-Yen Liu
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Yen-An Chen
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Hong-Yu Tseng
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Pei-Chun Shen
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Pai-An Hwang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Hsin-Ling Hsu
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan.
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Bilan MI, Ustyuzhanina NE, Shashkov AS, Thanh TTT, Bui ML, Tran TTV, Bui VN, Usov AI. Sulfated polysaccharides of the Vietnamese brown alga Sargassum aquifolium (Fucales, Sargassaceae). Carbohydr Res 2017; 449:23-31. [PMID: 28683274 DOI: 10.1016/j.carres.2017.06.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/26/2017] [Accepted: 06/26/2017] [Indexed: 02/06/2023]
Abstract
A fucoidan preparation named FSA was isolated from the brown alga Sargassum aquifolium collected from the coastal waters of Vietnam. l-Fucose, d-galactose, d-mannose, d-glucuronic acid, d-xylose, and sulfate were found to be the main constituents of FSA. The preparation was fractionated by anion-exchange chromatography on DEAE-Sephacel eluted stepwise with 0.5, 1.0, 1.5, and 2.0 M NaCl to give four fractions differing in monosaccharide composition and degree of sulfation. Their NMR spectra were too complex to be completely interpreted. Fractions 1.0 M and 1.5 M were analyzed by methylation before and after desulfation. In addition, desulfated 1.0 M was fractionated by anion-exchange chromatography into six fractions according to the uronic acid content. They were characterized by methylation and NMR spectral data, and three structurally different polysaccharides were identified. One of them has a core of alternating 2-linked α-d-Manp and 4-linked β-d-GlcpA residues, about a half of the former bearing single α-l-Fucp or β-d-Xylp at position 3. The second polymer is a (1 → 3)-β-d-glucopyranuronan partially substituted with single β-d-Xylp or single α-l-Fucp at position 4. The third polysaccharide is a xylo(fuco)galactan having a linear core of alternating 4-linked α-d-Gal and 3-linked β-d-Gal residues. The latter bear single β-d-Xylp or a short chain of 4-linked β-d-Xyl, 6-linked β-d-Gal, and variously linked α-l-Fuc. In FSA, these polysaccharides are sulfated at different positions and devoid of regularity. Fractions of FSA possess anticoagulant, cytotoxic, and antitumor activities, which increase with the degree of sulfation. The most sulfated fraction 2.0 M that contains mainly a sulfated fucogalactan, is about half as active as anticoagulant as the standard low-molecular mass heparin (enoxaparin).
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Affiliation(s)
- Maria I Bilan
- N.D.Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Nadezhda E Ustyuzhanina
- N.D.Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Alexander S Shashkov
- N.D.Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Thi Thu Thuy Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Viet Nam
| | - Minh Ly Bui
- Nha Trang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Nha Trang City, Khanh Hoa Province, Viet Nam
| | - Thi Thanh Van Tran
- Nha Trang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Nha Trang City, Khanh Hoa Province, Viet Nam
| | - Van Nguyen Bui
- University of Khanh Hoa, Nha Trang City, Khanh Hoa Province, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Viet Nam
| | - Anatolii I Usov
- N.D.Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation.
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Silchenko AS, Ustyuzhanina NE, Kusaykin MI, Krylov VB, Shashkov AS, Dmitrenok AS, Usoltseva RV, Zueva AO, Nifantiev NE, Zvyagintseva TN. Expression and biochemical characterization and substrate specificity of the fucoidanase from Formosa algae. Glycobiology 2017; 27:254-263. [PMID: 28031251 DOI: 10.1093/glycob/cww138] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 12/23/2016] [Indexed: 12/20/2022] Open
Abstract
A gene that encodes fucoidanase ffa2 in the marine bacterium Formosa algae strain KMM 3553T was cloned, and the protein (FFA2) was produced in Escherichia coli. Recombinant fucoidanase FFA2 was purified, and the biochemical properties of this enzyme were studied. The amino acid sequence of FFA2 showed 57% identity with known fucoidanase FcnA from Mariniflexile fucanivorans. The mass of the gene product FFA2 is 101.2 kDa (918 amino acid residues). Sequence analysis has revealed that fucoidanase FFA2 belongs to the GH107 (CAZy) family. Detailed substrate specificity was studied by using fucoidans from brown seaweeds as well as synthetic fucooligosaccharide with distinct structures. Fucoidanase FFA2 catalyzes the cleavage of (1→4)-α-glycosidic bonds in the fucoidan from Fucus evanescens within a structural fragment (→3)-α-l-Fucp2S-(1→4)-α-l-Fucp2S-(1→)n but not in a fragment (→3)-α-l-Fucp2S,4S-(1→4)-α-l-Fucp2S-(1→)n. Using synthetic di-, tetra- and octasaccharides built up of the alternative (1→4)- and (1→3)-linked α-l-Fucp2S units, the difference in substrate specificity and in the rate of enzymatic selectivity was investigated. Nonsulfated and persulfated synthetic oligosaccharides were not transformed by the enzyme. Therefore, FFA2 was specified as poly[(1→4)-α-l-fucoside-2-sulfate] glycanohydrolase. This enzyme could be used for the modification of natural fucoidans to obtain more regular and easier characterized derivatives useful for research and practical applications.
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Affiliation(s)
- Artem S Silchenko
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prospect 100-let Vladivostoku, Vladivostok 690022, Russia
| | - Nadezhda E Ustyuzhanina
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky Prospect, Moscow 119991, Russia
| | - Mikhail I Kusaykin
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prospect 100-let Vladivostoku, Vladivostok 690022, Russia
| | - Vadim B Krylov
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky Prospect, Moscow 119991, Russia
| | - Alexander S Shashkov
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky Prospect, Moscow 119991, Russia
| | - Andrey S Dmitrenok
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky Prospect, Moscow 119991, Russia
| | - Roza V Usoltseva
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prospect 100-let Vladivostoku, Vladivostok 690022, Russia
| | - Anastasiya O Zueva
- Far-Eastern Federal University, 8, Sukhanova St., Vladivostok 690022 , Russia
| | - Nikolay E Nifantiev
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky Prospect, Moscow 119991, Russia
| | - Tatyana N Zvyagintseva
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prospect 100-let Vladivostoku, Vladivostok 690022, Russia
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Crude Fucoidan Extracts Impair Angiogenesis in Models Relevant for Bone Regeneration and Osteosarcoma via Reduction of VEGF and SDF-1. Mar Drugs 2017. [PMID: 28632184 PMCID: PMC5484136 DOI: 10.3390/md15060186] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The marine origin polysaccharide fucoidan combines multiple biological activities. As demonstrated by various studies in vitro and in vivo, fucoidans show anti-viral, anti-tumor, anti-oxidant, anti-inflammatory and anti-coagulant properties, although the detailed molecular action remains to be elucidated. The aim of the present study is to assess the impact of crude fucoidan extracts, on the formation of vascular structures in co-culture models relevant for bone vascularization during bone repair and for vascularization processes in osteosarcoma. The co-cultures consisted of bone marrow derived mesenchymal stem cells, respectively the osteosarcoma cell line MG63, and human blood derived outgrowth endothelial cells (OEC). The concentration dependent effects on the metabolic activity on endothelial cells and osteoblast cells were first assessed using monocultures of OEC, MSC and MG63 suggesting a concentration of 100 µg/mL as a suitable concentration for further experiments. In co-cultures fucoidan significantly reduced angiogenesis in MSC/OEC but also in MG63/OEC co-cultures suggesting a potential application of fucoidan to lower the vascularization in bone tumors such as osteosarcoma. This was associated with a decrease in VEGF (vascular endothelial growth factor) and SDF-1 (stromal derived factor-1) on the protein level, both related to the control of angiogenesis and furthermore discussed as crucial factors in osteosarcoma progression and metastasis. In terms of bone formation, fucoidan slightly lowered on the calcification process in MSC monocultures and MSC/OEC co-cultures. In summary, these data suggest the suitability of lower fucoidan doses to limit angiogenesis for instance in osteosarcoma.
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