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Li J, Chen K, Li S, Feng J, Liu T, Wang F, Zhang R, Xu S, Zhou Y, Zhou S, Xia Y, Lu J, Zhou Y, Guo C. Protective effect of fucoidan from Fucus vesiculosus on liver fibrosis via the TGF-β1/Smad pathway-mediated inhibition of extracellular matrix and autophagy. Drug Des Devel Ther 2016; 10:619-30. [PMID: 26929597 PMCID: PMC4758785 DOI: 10.2147/dddt.s98740] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Liver fibrosis is a dynamic reversible pathological process in the development of chronic liver disease to cirrhosis. However, the current treatments are not administered for a long term due to their various side effects. Autophagy is initiated to decompose damaged or excess organelles, which had been found to alter the progression of liver fibrosis. In this article, we hypothesized that fucoidan from Fucus vesiculosus may attenuate liver fibrosis in mice by inhibition of the extracellular matrix and autophagy in carbon tetrachloride- and bile duct ligation-induced animal models of liver fibrosis. The results were determined using enzyme-linked immunosorbent assay, quantitative real-time polymerase chain reaction, Western blotting, and immunohistochemical staining. Fucoidan from F. vesiculosus could inhibit the activation of hepatic stellate cells and the formation of extracellular matrix and autophagosomes, and its effect may be associated with the downregulation of transforming growth factor beta 1/Smads pathways. Fucoidan, as an autophagy and transforming growth factor beta 1 inhibitor, could be a promising potential therapeutic agent for liver fibrosis.
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Affiliation(s)
- Jingjing Li
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Kan Chen
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Sainan Li
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Jiao Feng
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Tong Liu
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Fan Wang
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Rong Zhang
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
- The First Clinical Medical College of Nanjing Medical University, Nanjing, People’s Republic of China
| | - Shizan Xu
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
- The First Clinical Medical College of Nanjing Medical University, Nanjing, People’s Republic of China
| | - Yuqing Zhou
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China
| | - Shunfeng Zhou
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China
| | - Yujing Xia
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Jie Lu
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Yingqun Zhou
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
| | - Chuanyong Guo
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, People’s Republic of China
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152
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Venkatesan J, Anil S, Kim SK, Shim MS. Seaweed Polysaccharide-Based Nanoparticles: Preparation and Applications for Drug Delivery. Polymers (Basel) 2016; 8:E30. [PMID: 30979124 PMCID: PMC6432598 DOI: 10.3390/polym8020030] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/04/2016] [Accepted: 01/11/2016] [Indexed: 01/17/2023] Open
Abstract
In recent years, there have been major advances and increasing amounts of research on the utilization of natural polymeric materials as drug delivery vehicles due to their biocompatibility and biodegradability. Seaweed polysaccharides are abundant resources and have been extensively studied for several biological, biomedical, and functional food applications. The exploration of seaweed polysaccharides for drug delivery applications is still in its infancy. Alginate, carrageenan, fucoidan, ulvan, and laminarin are polysaccharides commonly isolated from seaweed. These natural polymers can be converted into nanoparticles (NPs) by different types of methods, such as ionic gelation, emulsion, and polyelectrolyte complexing. Ionic gelation and polyelectrolyte complexing are commonly employed by adding cationic molecules to these anionic polymers to produce NPs of a desired shape, size, and charge. In the present review, we have discussed the preparation of seaweed polysaccharide-based NPs using different types of methods as well as their usage as carriers for the delivery of various therapeutic molecules (e.g., proteins, peptides, anti-cancer drugs, and antibiotics). Seaweed polysaccharide-based NPs exhibit suitable particle size, high drug encapsulation, and sustained drug release with high biocompatibility, thereby demonstrating their high potential for safe and efficient drug delivery.
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Affiliation(s)
| | - Sukumaran Anil
- Department of Preventive Dental Sciences, College of Dentistry, Jazan University, P.O Box 114, Jazan 45142, Saudi Arabia.
| | - Se-Kwon Kim
- Marine Bioprocess Research Center and Department of Marine-bio Convergence Science, Pukyong National University, Busan 608-737, Korea.
| | - Min Suk Shim
- Division of Bioengineering, Incheon National University, Incheon 406-772, Korea.
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153
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Cong Q, Chen H, Liao W, Xiao F, Wang P, Qin Y, Dong Q, Ding K. Structural characterization and effect on anti-angiogenic activity of a fucoidan from Sargassum fusiforme. Carbohydr Polym 2016; 136:899-907. [PMID: 26572427 DOI: 10.1016/j.carbpol.2015.09.087] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 09/22/2015] [Accepted: 09/24/2015] [Indexed: 01/29/2023]
Abstract
A fucoidan FP08S2 was isolated from the boiling-water extract of Sargassum fusiforme, purified by CaCl2 precipitation and chromatography on DEAE-cellulose and Sephacryl S-300. FP08S2 contained fucose, xylose, galactose, mannose, glucuronic acid, and 20.8% sulfate. The sulfate groups were attached to diverse positions of fucose, xylose, mannose, and galactose residues. The backbone of FP08S2 consisted of alternate 1,2-linked α-D-Manp and 1,4-linked β-D-GlcpA. Sugar composition analysis and ESI-MS revealed that the oligosaccharides from branches contained fucose, xylose, galactose, glucuronic acid and sulfate. FP08S2 could significantly inhibit tube formation and migration of human microvascular endothelial cells (HMEC-1) dose-dependently. These results suggested that the fucoidan FP08S2 from brown seaweeds S. fusiforme could be a potent anti-angiogenic agent.
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Affiliation(s)
- Qifei Cong
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China
| | - Huanjun Chen
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China
| | - Wenfeng Liao
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China
| | - Fei Xiao
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China
| | - Peipei Wang
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China
| | - Yi Qin
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China
| | - Qun Dong
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China.
| | - Kan Ding
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang, Pudong, Shanghai 201203, China.
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154
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Hussain E, Wang LJ, Jiang B, Riaz S, Butt GY, Shi DY. A review of the components of brown seaweeds as potential candidates in cancer therapy. RSC Adv 2016. [DOI: 10.1039/c5ra23995h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Brown seaweeds have opened new opportunities for the development of novel anticancer agents due to their diverse structural composition and mode of action.
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Affiliation(s)
- Ejaz Hussain
- Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences (CAS)
- Qingdao 266071
- China
| | - Li-Jun Wang
- Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences (CAS)
- Qingdao 266071
- China
| | - Bo Jiang
- Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences (CAS)
- Qingdao 266071
- China
| | - Saba Riaz
- Phycology Lab
- Department of Botany
- Government College University
- Lahore
- Pakistan
| | | | - Da-Yong Shi
- Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences (CAS)
- Qingdao 266071
- China
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155
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Chang Y, Hu Y, Yu L, McClements DJ, Xu X, Liu G, Xue C. Primary structure and chain conformation of fucoidan extracted from sea cucumber Holothuria tubulosa. Carbohydr Polym 2016; 136:1091-7. [DOI: 10.1016/j.carbpol.2015.10.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/08/2015] [Accepted: 10/06/2015] [Indexed: 12/12/2022]
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156
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Cortese L, Annunziatella M, Palatucci AT, Lanzilli S, Rubino V, Di Cerbo A, Centenaro S, Guidetti G, Canello S, Terrazzano G. An immune-modulating diet increases the regulatory T cells and reduces T helper 1 inflammatory response in Leishmaniosis affected dogs treated with standard therapy. BMC Vet Res 2015; 11:295. [PMID: 26634917 PMCID: PMC4669625 DOI: 10.1186/s12917-015-0610-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 11/27/2015] [Indexed: 11/11/2022] Open
Abstract
Background Clinical appearance and evolution of Canine Leishmaniosis (CL) are the consequence of complex interactions between the parasite and the genetic and immunological backgrounds. We investigated the effect of an immune-modulating diet in CL. Dogs were treated with anti- Leishmania pharmacological therapy combined with standard diet (SD Group) or with the immune-modulating diet (IMMD Group). CD3+ CD4+ Foxp3+ Regulatory T cells (Treg) and CD3+ CD4+ IFN-γ + T helper 1 (Th1) were analyzed by flow cytometry. Results All sick dogs showed low platelet number at diagnosis (T0). A platelet increase was observed after six months (T6) SD Group, with still remaining in the normal range at twelve months (T12). IMMD Group showed an increase in platelet number becoming similar to healthy dogs at T6 and T12. An increase of CD4/CD8 ratio was revealed in SD Group after three months (T3), while at T6 and at T12 the values resembled to T0. The increase in CD4/CD8 ratio at T3 was maintained at T6 and T12 in IMMD Group. A reduction in the percentage of Treg of all sick dogs was observed at T0. A recovery of Treg percentage was observed only at T3 in SD Group, while this effect disappeared at T6 and T12. In contrast, Treg percentage became similar to healthy animals in IMDD Group at T3, T6 and T12. Sick dogs showed an increase of Th1 cells at T0 as compared with healthy dogs. We observed the occurrence of a decrease of Th1 cells from T3 to T12 in SD Group, although a trend of increase was observed at T6 and T12. At variance, IMMD Group dogs showed a progressive decrease of Th1 cells, whose levels became similar to healthy controls at T6 and T12. Conclusion The immune-modulating diet appears to regulate the immune response in CL during the standard pharmacological treatment. The presence of nutraceuticals in the diet correlates with the decrease of Th1 cells and with the increase of Treg in sick dogs. Therefore, the administration of the specific dietary supplement improved the clinical response to the standard treatment in a model of CL.
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Affiliation(s)
- Laura Cortese
- Department of Veterinary Medicine and Animal Productions, Division of Internal Medicine, University of Naples Federico II, Via Delpino, 1, 80137, Naples, Italy
| | - Mariangela Annunziatella
- Department of Veterinary Medicine and Animal Productions, Division of Internal Medicine, University of Naples Federico II, Via Delpino, 1, 80137, Naples, Italy
| | | | - Sarah Lanzilli
- Department of Veterinary Medicine and Animal Productions, Division of Internal Medicine, University of Naples Federico II, Via Delpino, 1, 80137, Naples, Italy
| | - Valentina Rubino
- Department of Translational Medical Sciences, University of Naples Federico II, Via Pansini, 5, 80131, Naples, Italy
| | - Alessandro Di Cerbo
- School of Specialization in Clinical Biochemistry, "G. d'Annunzio" University, Chieti, Italy
| | - Sara Centenaro
- Division of Research and Development, Sanypet SpA, Padova, Italy
| | | | - Sergio Canello
- Division of Research and Development, Sanypet SpA, Padova, Italy
| | - Giuseppe Terrazzano
- Department of Translational Medical Sciences, University of Naples Federico II, Via Pansini, 5, 80131, Naples, Italy. .,Department of Science, University of Basilicata, Via Sauro, 85, 85100, Potenza, Italy.
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157
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Yan MD, Yao CJ, Chow JM, Chang CL, Hwang PA, Chuang SE, Whang-Peng J, Lai GM. Fucoidan Elevates MicroRNA-29b to Regulate DNMT3B-MTSS1 Axis and Inhibit EMT in Human Hepatocellular Carcinoma Cells. Mar Drugs 2015; 13:6099-116. [PMID: 26404322 PMCID: PMC4626681 DOI: 10.3390/md13106099] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 09/08/2015] [Accepted: 09/14/2015] [Indexed: 12/16/2022] Open
Abstract
Accumulating evidence has revealed that fucoidan exhibits anti-tumor activities by arresting cell cycle and inducing apoptosis in many types of cancer cells including hepatocellular carcinoma (HCC). Exploring its effect on microRNA expression, we found that fucoidan markedly upregulated miR-29b of human HCC cells. The induction of miR-29b was accompanied with suppression of its downstream target DNMT3B in a dose-dependent manner. The reduction of luciferase activity of DNMT3B 3'-UTR reporter by fucoidan was as markedly as that by miR-29b mimic, indicating that fucoidan induced miR-29b to suppress DNMT3B. Accordingly, the mRNA and protein levels of MTSS1 (metastasis suppressor 1), a target silenced by DNMT3B, were increased after fucoidan treatment. Furthermore, fucoidan also down-regulated TGF-β receptor and Smad signaling of HCC cells. All these effects leaded to the inhibition of EMT (increased E-cadherin and decreased N-cadherin) and prevention of extracellular matrix degradation (increased TIMP-1 and decreased MMP2, 9), by which the invasion activity of HCC cells was diminished. Our results demonstrate the profound effect of fucoidan not only on the regulation of miR-29b-DNMT3B-MTSS1 axis but also on the inhibition of TGF-β signaling in HCC cells, suggesting the potential of using fucoidan as integrative therapeutics against invasion and metastasis of HCC.
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Affiliation(s)
- Ming-De Yan
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; E-Mails: (M.-D.Y.); (C.-J.Y.); (J.W.-P.)
| | - Chih-Jung Yao
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; E-Mails: (M.-D.Y.); (C.-J.Y.); (J.W.-P.)
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; E-Mail:
- Comprehensive Cancer Center, Taipei Medical University, Taipei 11031, Taiwan
| | - Jyh-Ming Chow
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; E-Mail:
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; E-Mail:
| | - Chia-Lun Chang
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; E-Mail:
| | - Pai-An Hwang
- Seafood Technology Division, Fisheries Research Institute, Council of Agriculture, Keelung 20246, Taiwan; E-Mail:
| | - Shuang-En Chuang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County 35053, Taiwan; E-Mail:
| | - Jacqueline Whang-Peng
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; E-Mails: (M.-D.Y.); (C.-J.Y.); (J.W.-P.)
- Comprehensive Cancer Center, Taipei Medical University, Taipei 11031, Taiwan
| | - Gi-Ming Lai
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; E-Mails: (M.-D.Y.); (C.-J.Y.); (J.W.-P.)
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; E-Mail:
- Comprehensive Cancer Center, Taipei Medical University, Taipei 11031, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; E-Mail:
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County 35053, Taiwan; E-Mail:
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158
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Wei C, Xiao Q, Kuang X, Zhang T, Yang Z, Wang L. Fucoidan inhibits proliferation of the SKM-1 acute myeloid leukaemia cell line via the activation of apoptotic pathways and production of reactive oxygen species. Mol Med Rep 2015; 12:6649-55. [PMID: 26324225 PMCID: PMC4626197 DOI: 10.3892/mmr.2015.4252] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 07/23/2015] [Indexed: 12/24/2022] Open
Abstract
Myelodysplastic syndromes (MDS) are a heterogeneous group of myeloid disorders characterized by peripheral blood cytopenias and a high risk of progression to acute myeloid leukaemia (AML). Fucoidan, a complex sulphated polysaccharide isolated from the cell wall of brown seaweeds, has recently attracted attention for its multiple biological activities and its potential as a novel candidate for cancer therapy. In the present study, the anti‑cancer activity of fucoidan was investigated in the MDS/AML cell line SKM‑1. Fucoidan inhibited proliferation, induced apoptosis and caused G1-phase arrest of the cell cycle in SKM‑1 cells as determined by a cell counting kit 8 assay and flow cytometry. Furthermore, reverse transcription quantitative polymerase chain reaction and western blot analyses indicated that treatment with fucoidan (100 µg/ml for 48 h) activated Fas and caspase‑8 in SKM‑1 cells, which are critical for the extrinsic apoptotic pathway; furthermore, caspase‑9 was activated via decreases in phosphoinositide-3 kinase/Akt signaling as indicated by reduced levels of phosphorylated Akt, suggesting the involvement of the intrinsic apoptotic pathway. In addition, fucoidan treatment of SKM‑1 cells resulted in the generation of reactive oxygen species (ROS) as determined by staining with dichloro-dihydro-fluorescein diacetate. These results suggested that the mechanisms of the anti‑cancer effects of fucoidan in SKM‑1 are closely associated with cell cycle arrest and apoptotic cell death, which partly attributed to the activation of apoptotic pathways and accumulation of intracellular ROS. Our results demonstrated that Fucoidan inhibits proliferation and induces the apoptosis of SKM‑1 cells, which provides substantial therapeutic potential for MDS treatment.
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Affiliation(s)
- Chunmei Wei
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Qing Xiao
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xingyi Kuang
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Tao Zhang
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Zesong Yang
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Li Wang
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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159
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Schneider T, Ehrig K, Liewert I, Alban S. Interference with the CXCL12/CXCR4 axis as potential antitumor strategy: superiority of a sulfated galactofucan from the brown alga Saccharina latissima and fucoidan over heparins. Glycobiology 2015; 25:812-24. [PMID: 25878069 DOI: 10.1093/glycob/cwv022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 04/09/2015] [Indexed: 01/18/2023] Open
Abstract
The present study demonstrates that fucose-containing sulfated polysaccharides (FCSP) from brown algae interfere with the CXCL12/CXCR4 axis in human Burkitt's lymphoma cells by binding CXCL12 and thereby blocking both CXCL12-induced CXCR4 receptor activation and downstream effects like migration and secretion of matrix metalloproteinase-9. This mode of action is currently considered as promising strategy for tumor therapy and may contribute to the known in vivo antitumor, antimetastatic and antiangiogenic activity of FCSP. In terms of the inhibition of the CXCR4 activation, FCSP from Saccharina latissima (S.l.-FCSP) proved to be more active than a commercial "Fucoidan" from Fucus vesiculosus, and both FCSP were superior to heparins by more than one order of magnitude. Fractionation of S.l.-FCSP revealed that its main fraction is composed of a homogeneous, higher sulfated galactofucan (S.l.-SGF) which consistently exhibited stronger activities and can therefore be considered as the active ingredient of S.l.-FCSP. By subjecting Fucoidan to the same fractionation procedure, the inhibitory activity of the obtained purified Fucoidan on the CXCL12/CXCR4 axis tended to be weaker and its antioxidant and antiproliferative effects were lost. This was probably due to the separation of contaminants including phenolic compounds, whose content additionally showed marked batch-to-batch variability. Regarding the need of standardized, well-characterized FCSP preparations for any potential medical application, our results indicate that S.l.-SGF is a promising candidate for further investigations and that S. latissima may be a more appropriate source of FCSP than F. vesiculosus or other algae species with high contents of co-extractable compounds.
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Affiliation(s)
- Tino Schneider
- Pharmaceutical Institute, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Karina Ehrig
- Pharmaceutical Institute, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Inga Liewert
- Pharmaceutical Institute, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Susanne Alban
- Pharmaceutical Institute, Christian-Albrechts-University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
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160
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Characterization of antibacterial activity from protein hydrolysates of the macroalga Saccharina longicruris and identification of peptides implied in bioactivity. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.06.026] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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161
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Han YS, Lee JH, Jung JS, Noh H, Baek MJ, Ryu JM, Yoon YM, Han HJ, Lee SH. Fucoidan protects mesenchymal stem cells against oxidative stress and enhances vascular regeneration in a murine hindlimb ischemia model. Int J Cardiol 2015; 198:187-95. [PMID: 26163916 DOI: 10.1016/j.ijcard.2015.06.070] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 06/15/2015] [Accepted: 06/19/2015] [Indexed: 11/20/2022]
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) have the potential to differentiate into multiple cell lineages. Given this potential for tissue regeneration, MSC-based therapeutic applications have been considered in recent years. However, ischemia-induced apoptosis has been reported to be one of the main causes of MSC death following transplantation. The primary objective of this study was to determine whether a natural antioxidant, fucoidan, could protect MSCs from ischemia-induced apoptosis in vitro and in vivo. Furthermore, we investigated the mechanism of action of fucoidan's anti-ischemic effect in MSCs. METHODS AND RESULT Pre-treatment with fucoidan (10 μg/mL) suppressed the increase in H2O2-induced reactive oxygen species (ROS) levels and drastically reduced apoptotic cell death in MSCs. Fucoidan inhibited the activation of the pro-apoptotic proteins p38-mitogen-activated protein kinase (MAPK), Jun N-terminal kinase (JNK), and caspase-3, and augmented the expression of the anti-apoptosis protein cellular inhibitor of apoptosis (cIAP). Moreover, fucoidan significantly increased manganese superoxide dismutase (MnSOD) expression and decreased cellular ROS levels via the Akt pathway, resulting in enhanced cell survival. In a murine hindlimb ischemia model, transplanted fucoidan-treated MSCs showed significantly enhanced cell survival and proliferation in ischemic tissues. Functional recovery and limb salvage also remarkably improved in mice injected with fucoidan-stimulated MSCs compared with mice injected with non-stimulated MSCs. CONCLUSION Taken together, these results show that fucoidan protects MSCs from ischemia-induced cell death by modulation of apoptosis-associated proteins and cellular ROS levels through regulation of the MnSOD and Akt pathways, suggesting that fucoidan could be powerful therapeutic adjuvant for MSC-based therapy in ischemic diseases.
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Affiliation(s)
- Yong-Seok Han
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Jun Hee Lee
- Laboratory for Vascular Medicine and Stem Cell Biology, Medical Research Institute, Department of Physiology, School of Medicine, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Jin Sup Jung
- Medical Research Center for Ischemic Tissue Engineering, Pusan National University, Yangsan, Gyeongnam, Republic of Korea; Department of Physiology, School of Medicine, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
| | - Hyunjin Noh
- Department of Internal Medicine, Soonchunhyang University, Seoul, Republic of Korea; Hyonam Kidney Laboratory, Soonchunhyang University, Seoul, Republic of Korea
| | - Moo Jun Baek
- Department of Surgery, School of Medicine, Soonchunhyang University, Cheonan 330-930, Republic of Korea
| | - Jung Min Ryu
- Department of Veterinary Physiology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 151-741, Republic of Korea; BK21 PLUS Creative Veterinary Research Center, Seoul National University, Seoul 151-741, Republic of Korea
| | - Yeo Min Yoon
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Ho Jae Han
- Department of Veterinary Physiology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 151-741, Republic of Korea; BK21 PLUS Creative Veterinary Research Center, Seoul National University, Seoul 151-741, Republic of Korea.
| | - Sang Hun Lee
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea; Department of Biochemistry, Soonchunhyang University College of Medicine, Cheonan 330-930, Republic of Korea.
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Park HY, Choi IW, Kim GY, Kim BW, Kim WJ, Choi YH. Fucoidan induces G1 arrest of the cell cycle in EJ human bladder cancer cells through down-regulation of pRB phosphorylation. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2015.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mahmoud AM, Abdella EM, El-Derby AM, Abdella EM. Protective Effects of Turbinaria ornata and Padina pavonia against Azoxymethane-Induced Colon Carcinogenesis through Modulation of PPAR Gamma, NF-κB and Oxidative Stress. Phytother Res 2015; 29:737-48. [PMID: 25676613 DOI: 10.1002/ptr.5310] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 01/22/2015] [Accepted: 01/22/2015] [Indexed: 12/16/2023]
Abstract
The aim of this study was to investigate the antiproliferative and protective effects of the brown seaweeds, Turbinaria ornata and Padina pavonia, against azoxymethane (AOM)-induced colon carcinogenesis in mice. Both algal extracts showed anti-proliferative effects on the human carcinoma cell line HCT-116 in vitro, with T. ornata demonstrating a more potent effect. Male albino Swiss mice received intraperitoneal injections of AOM (10 mg/kg) once a week for two consecutive weeks and 100 mg/kg of either T. ornata or P. pavonia extracts. AOM-induced mice exhibited alterations in the histological structure of the colon, elevated lipid peroxidation and nitric oxide, declined glutathione content and reduced activity of superoxide dismutase and glutathione peroxidase. In addition, AOM induced downregulation of peroxisome proliferator activated receptor gamma (PPARγ) and p53 mRNA expression, with concomitant upregulation of nuclear factor-kappa B (NF-κB) in colon tissue. Administration of either algal extract markedly alleviated the recorded alterations. In conclusion, the current study suggests that T. ornata and P. pavonia, through their antioxidant and anti-inflammatory effects, are able to attenuate colon inflammation by downregulating NF-κB expression. Furthermore, the protective effects of both algae against AOM-initiated carcinogenesis were attributed, at least in part, to their ability to upregulate colonic PPARγ and p53 expression.
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Affiliation(s)
- Ayman M Mahmoud
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Egypt
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165
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Quantitative determination of fucoidan using polyion-sensitive membrane electrodes. Anal Chim Acta 2015; 877:1-8. [PMID: 26002205 DOI: 10.1016/j.aca.2015.04.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 04/09/2015] [Accepted: 04/10/2015] [Indexed: 12/20/2022]
Abstract
The use of polyanion and polycation-sensitive membrane electrodes to detect five different preparations of fucoidan is described. Unlike linear polyanionic molecules previously measured with polymer membrane-based electrochemical sensors, fucoidans from marine brown algae are all highly branched, sulfated polysaccharides with varying charge densities and structures, depending on the species of seaweed, method of extraction used and extent of purification. When tridodecylmethylammonium (TDMA) was used as the ion-exchanger, a large, non-equilibrium EMF response was observed over a concentration range of 0.5-50 μg mL(-1) fucoidan. Fucoidan was also measured by titration with polycationic protamine, using a dinonylnaphthalene sulfonate (DNNS)-doped membrane electrode as the potentiometric endpoint detector. Potentiometric titration was used to determine the binding ratio between protamine and fucoidan at the neutralization endpoint for each fucoidan preparation. This binding ratio was then used to successfully determine the fucoidan content of commercially available nutritional supplements. Fucoidan was also measured in undiluted blood serum, demonstrating that this method may be applicable for measuring fucoidan for clinical applications.
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166
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Shvetsova SV, Zhurishkina EV, Bobrov KS, Ronzhina NL, Lapina IM, Ivanen DR, Gagkaeva TY, Kulminskaya AA. The novel strain Fusarium proliferatum LE1 (RCAM02409) produces α-L-fucosidase and arylsulfatase during the growth on fucoidan. J Basic Microbiol 2015; 55:471-9. [PMID: 25346501 DOI: 10.1002/jobm.201400309] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 09/07/2014] [Indexed: 11/10/2022]
Abstract
Enzymes capable of modifying the sulfated polymeric molecule of fucoidan are mainly produced by different groups of marine organisms: invertebrates, bacteria, and also some fungi. We have discovered and identified a new strain of filamentous fungus Fusarium proliferatum LE1 (deposition number in Russian Collection of Agricultural Microorganisms is RCAM02409), which is a potential producer of fucoidan-degrading enzymes. The strain LE1 (RCAM02409) was identified on the basis of morphological characteristics and analysis of ITS sequences of ribosomal DNA. During submerged cultivation of F. proliferatum LE1 in the nutrient medium containing natural fucoidan sources (the mixture of brown algae Laminaria digitata and Fucus vesiculosus), enzymic activities of α-L-fucosidase and arylsulfatase were inducible. These enzymes hydrolyzed model substrates, para-nitrophenyl α-L-fucopyranoside and para-nitrophenyl sulfate, respectively. However, the α-L-fucosidase is appeared to be a secreted enzyme while the arylsulfatase was an intracellular one. No detectable fucoidanase activity was found during F. proliferatum LE1 growth in submerged culture or in a static one. Comparative screening for fucoidanase/arylsulfatase/α-L-fucosidase activities among several related Fusarium strains showed a uniqueness of F. proliferatum LE1 to produce arylsulfatase and α-L-fucosidase enzymes. Apart them, the strain was shown to produce other glycoside hydrolyses.
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Affiliation(s)
- Svetlana V Shvetsova
- National Research Center «Kurchatov Institute», B.P. Konstantinov Petersburg Nuclear Physics Institute, Gatchina, Russia; St. Petersburg State Polytechnical University, St. Petersburg, Russia
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167
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Erfani N, Nazemosadat Z, Moein M. Cytotoxic activity of ten algae from the Persian Gulf and Oman Sea on human breast cancer cell lines; MDA-MB-231, MCF-7, and T-47D. Pharmacognosy Res 2015; 7:133-7. [PMID: 25829786 PMCID: PMC4357963 DOI: 10.4103/0974-8490.150539] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/12/2014] [Accepted: 02/02/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Seaweeds have proven to be a promising natural source of bioactive metabolites for drug development. OBJECTIVE This study aimed to monitor the ethanol extract of ten algae from the Persian Gulf and Oman Sea, for their in vitro cytotoxic activity on three human breast cancer cell lines. MATERIALS AND METHODS Three human breast cancer cell lines including MDA-MB-231(ER(-)), MCF-7(ER(+)), and T-47D (ER(+)) were treated by different concentrations of total ethanol (90%) algae extracts and the cytotoxic effects were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Doxorubicin (Ebewe, Austria) was used as a positive control. After 72 h of incubation, the cytotoxic effect of the algae was calculated and presented as 50%-inhibitory concentration (IC50). RESULTS The results indicated Gracilaria foliifera and Cladophoropsis sp. to be the most active algae in terms of cytotoxic effects on the investigated cancer cell lines. The IC50 values against MDA-MB-231, MCF-7, and T-47D cells were, respectively, 74.89 ± 21.71, 207.81 ± 12.07, and 203.25 ± 30.98 µg/ml for G. foliifera and 66.48 ± 4.96, 150.86 ± 51.56 and >400 µg/ml for Cladophoropsis sp. The rest of the algal extracts were observed not to have significant cytotoxic effects in the concentration range from 6.25 µg/ml to 400 µg/ml. CONCLUSION Our data conclusively suggest that G. foliifera and Cladophoropsis sp. may be good candidates for further fractionation to obtain novel anticancer substances. Moreover, stronger cytotoxic effects on estrogen negative breast cancer cell line (MDA-MB-231(ER(-))) in comparison to estrogen positive cells (MCF-7 and T-47D) suggest that the extract of G. foliifera and Cladophoropsis sp. may have an estrogen receptor/progesterone receptor-independent mechanism for their cellular growth inhibition.
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Affiliation(s)
- Nasrollah Erfani
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz, Iran
| | | | - Mahmoodreza Moein
- Medicinal Plants Processing Research Center, Shiraz, Iran ; Department of Pharmacognosy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Thuy TTT, Ly BM, Van TTT, Quang NV, Tu HC, Zheng Y, Seguin-Devaux C, Mi B, Ai U. Anti-HIV activity of fucoidans from three brown seaweed species. Carbohydr Polym 2015; 115:122-8. [PMID: 25439876 DOI: 10.1016/j.carbpol.2014.08.068] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 08/13/2014] [Accepted: 08/17/2014] [Indexed: 12/20/2022]
Abstract
Fucoidans are sulfated polysaccharides derived from marine brown algae. In the current work the anti-HIV activity of three fucoidans, extracted from three brown seaweeds Sargassum mcclurei, Sargassum polycystum and Turbinara ornata and collected from Nha Trang bay, Vietnam was investigated. Fucoidans extracted from the three species displayed similar antiviral activities with a mean IC50 ranging from 0.33 to 0.7 μg/ml while displaying no cell toxicity. Our results showed that the anti-HIV activity of fucoidans is not primarily linked to the sulfate content and the appropriate position of sulfate groups in the fucoidan backbones was also not associated with the antiviral activity. Fucoidans inhibited HIV-1 infection when they were pre-incubated with the virus but not with the cells, and not after infection, blocking the early steps of HIV entry into target cells. These data contribute to a better understanding of the influence of fucoidans structural characteristics on their biological activity.
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Affiliation(s)
- Thanh Thi Thu Thuy
- Institute of Chemistry, Vietnam Academy of Science and Technology, Viet Nam.
| | - Bui Minh Ly
- Nha Trang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Viet Nam
| | - Tran Thi Thanh Van
- Nha Trang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Viet Nam
| | - Ngo Van Quang
- Institute of Chemistry, Vietnam Academy of Science and Technology, Viet Nam
| | - Ho Cam Tu
- Laboratory of Retrovirology, CRP-Santé, Luxembourg
| | - Yue Zheng
- Laboratory of Retrovirology, CRP-Santé, Luxembourg
| | | | - Bilan Mi
- N.D.Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii Prospect 47, Moscow 119991, Russian Federation
| | - Usov Ai
- N.D.Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii Prospect 47, Moscow 119991, Russian Federation
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Hadj Ammar H, Lajili S, Ben Said R, Le Cerf D, Bouraoui A, Majdoub H. Physico-chemical characterization and pharmacological evaluation of sulfated polysaccharides from three species of Mediterranean brown algae of the genus Cystoseira. Daru 2015; 23:1. [PMID: 25582169 PMCID: PMC4298055 DOI: 10.1186/s40199-015-0089-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/03/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Seaweed polysaccharides are highly active natural substances having valuable applications. The present study was conducted to characterize the physico-chemical properties of sulphated polysaccharides from three Mediterranean brown seaweeds (Cystoseira sedoides, Cystoseira compressa and Cystoseira crinita) and to evaluate their anti-radical, anti-inflammatory and gastroprotective activities. METHODS The different rates of neutral sugars, uronic acids, L-fucose and sulphate content were determined by colorimetric techniques. The different macromolecular characteristics of isolated fucoidans were identified by size exclusion chromatography equipped with a triple detection: multiangle light scattering, viscometer and differential refractive index detectors, (SEC/MALS/VD/DRI). Anti-inflammatory activity was evaluated, using the carrageenan-induced rat paw edema test in comparison to the references drugs Acetylsalicylate of Lysine and Diclofenac. The gastroprotective activity was determined using HCl/EtOH induced gastric ulcers in rats and to examine the antioxidant effect of fucoidans in the three species, the free radical scavenging activity was determined using 1,1-diphenyl-2-picrylhydrazyl. RESULTS The pharmacological evaluation of the isolated fucoidans for their anti-inflammatory, and their gastroprotective effect established that these products from C. sedoides, C. compressa and C. crinita exhibited a significant anti-inflammatory activity at a dose of 50 mg/kg, i.p; the percentages of inhibition of the oedema were 51%, 57% and 58% respectively. And, at the same dose, these fucoidans from C. sedoides and C. compressa showed a significant decrease of the intensity of gastric mucosal damages compared to a control group by 68%, whereas, the fucoidan from C. crinita produced a less gastroprotective effect. Furthermore, the isolated fucoidans exhibited a radical scavenging activity. CONCLUSION The comparative study of fucoidans isolated from three species of the genus Cystoseira showed that they have similar chemicals properties and relatives anti-radical, anti-inflammatory and gastroprotective activities which are found to be promising.
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Affiliation(s)
- Hiba Hadj Ammar
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Bd. de l'environnement, 5019, Monastir, Tunisia.
| | - Sirine Lajili
- Laboratoire de développement chimique, galénique et pharmacologique des médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, 5000, Monastir, Tunisia.
| | - Rafik Ben Said
- Institut National des Sciences et Techniques de la Mer (INSTM), Salambôo, Tunis, Tunisia.
| | - Didier Le Cerf
- Université de la Normandie, Laboratoire Polymères Biopolymères Surfaces, UMR 6270 CNRS Université de Rouen, FRE 3101 CNRS, 76821, Mont Saint Aignan, France.
| | - Abderrahman Bouraoui
- Laboratoire de développement chimique, galénique et pharmacologique des médicaments, Faculté de Pharmacie de Monastir, Université de Monastir, 5000, Monastir, Tunisia.
| | - Hatem Majdoub
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Bd. de l'environnement, 5019, Monastir, Tunisia.
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170
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Kasai A, Arafuka S, Koshiba N, Takahashi D, Toshima K. Systematic synthesis of low-molecular weight fucoidan derivatives and their effect on cancer cells. Org Biomol Chem 2015; 13:10556-68. [DOI: 10.1039/c5ob01634g] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Low-molecular weight fucoidan derivatives with different sulfation patterns were designed, systematically synthesized, and evaluated for their anti-cancer activities against MCF-7 and HeLa cells.
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Affiliation(s)
- Akihiro Kasai
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Shinsuke Arafuka
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Nozomi Koshiba
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
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171
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de Jesus Raposo MF, de Morais AMMB, de Morais RMSC. Bioactivity and Applications of Polysaccharides from Marine Microalgae. POLYSACCHARIDES 2015. [DOI: 10.1007/978-3-319-16298-0_47] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Cho M, Lee DJ, Kim JK, You S. Molecular characterization and immunomodulatory activity of sulfated fucans from Agarum cribrosum. Carbohydr Polym 2014; 113:507-14. [PMID: 25256513 DOI: 10.1016/j.carbpol.2014.07.055] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 07/07/2014] [Accepted: 07/23/2014] [Indexed: 12/15/2022]
Abstract
The sulfated-fucans, known as fucoidans, were isolated from Agarum cribrosum and fractionated using ion-exchange chromatography to determine their molecular characteristics and in vitro immunomodulatory activity. The crude and fractionated fucoidans (F1 and F2) consisted mostly of carbohydrates (52.4-56.0%), sulfates (12.7-23.0%) and uronic acid (14.1-21.8%), with a small amount of proteins (3.9-9.3%), and included various levels of fucose (44.0-46.7%), mannose (18.9-26.8%), galactose (16.8-33.0%), xylose (10.7-17.0%) and glucose (3.5-9.5%). The crude and fractionated fucans contained one or two subfractions with average molecular weights (Mw) ranging from 110.1 × 10(3) to 2420 × 10(3)g/mol. The fractionated fucoidan, especially the F1 fraction, strongly stimulated murine macrophages (Raw 264.7 cells), producing a considerable amount of nitric oxide (NO) and inducing expression of inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2) and interleukin-10 (IL-10) transcripts by activation of nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinases (MAPKs) pathways. The maximally immunoenhancing F1 fraction was mainly composed of (1 → 3)-linked fucose, (1 → 2)-linked mannose and (1 → 4)-linked glucuronic acid with sulfates at C-2 or both the C-2 and C-4 positions in (1 → 2,3)- and (1 → 2,3,4)-linked fucose residues.
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Affiliation(s)
- MyoungLae Cho
- East Sea Research Institute, Korea Institute of Ocean Science and Technology, Uljin 767-813, Gyeongbuk, Republic of Korea
| | - Dong-Jin Lee
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 210-702, Gangwon, Republic of Korea
| | - Jin-Kyung Kim
- Department of Biomedical Science, Catholic University of Daegu, Gyeongsan 712-702, Gyeongbuk, Republic of Korea
| | - SangGuan You
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 210-702, Gangwon, Republic of Korea.
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173
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Bu SY, Kwon H, Sung MK. Supplementation of Seaweeds Extracts Suppresses Azoxymethane-induced Aberrant DNA Methylation in Colon and Liver of ICR Mice. J Cancer Prev 2014; 19:216-23. [PMID: 25337591 PMCID: PMC4189504 DOI: 10.15430/jcp.2014.19.3.216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 09/10/2014] [Accepted: 09/10/2014] [Indexed: 12/18/2022] Open
Abstract
Background: Seamustard and seatangle are commonly consumed seaweeds in Korea and rich sources of non-digestible polysaccharides which possess biological activities. However anti-mutagenic and anti-cancer activities of these seaweeds under physiological condition have not been clarified yet. The objective of this study was to investigate the effect of seaweeds consumption on azoxymethane (AOM) -induced DNA methylation at N7 and O6 position of guanine base, an indicator of DNA damage related to cancer initiation. Methods: Thirty ICR mice were divided into five groups and fed one of the following diets for two weeks: control diet, diet containing 10% water-soluble or water-insoluble fraction of seamustard or seatangle. After two weeks of experimental diet AOM was injected at 6 hours before sacrifice and N7-methylguanine (N7-meG) and O6-methylguanine (O6-meG) from the colon and liver DNA were quantified using a gas chromatography-mass spectroscopy. Results: Water-soluble fractions of both seamustard and seatangle significantly reduced AOM-induced production of N7-meG guanine in colon and liver. Also water-soluble fractions of these seaweeds suppressed the level of methylation at O6-guanine of colon and liver directly responsible for tumorigenesis. While water-insoluble fraction of seamustard suppressed the production of N7-meG in liver this seaweed fraction decreased O6-meG and the ratio of O6/N7-meG in liver. Water insoluble fraction of seatangle decreased both O6- and N7-meG in colon and liver. Supplementation of all seaweeds extracts increased fecal weight of animals and the increase of fecal weight by water-insoluble fraction of seaweeds were higher than that by water-soluble fraction. Conclusion: Seamustard and seatangle intake may effectively prevent colon and liver carcinogenesis by decreasing DNA damage and the mechanism of inhibiting carcinogenesis by seaweeds in a long term study are warranted.
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Affiliation(s)
- So Young Bu
- Department of Food and Nutrition, Daegu University, Gyeongsan, Korea
| | - Hoonjeong Kwon
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Mi-Kyung Sung
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
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Chen S, Zhao Y, Zhang Y, Zhang D. Fucoidan induces cancer cell apoptosis by modulating the endoplasmic reticulum stress cascades. PLoS One 2014; 9:e108157. [PMID: 25232957 PMCID: PMC4169461 DOI: 10.1371/journal.pone.0108157] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 08/17/2014] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Cancer metastasis is the main cause leading to disease recurrence and high mortality in cancer patients. Therefore, inhibiting metastasis process or killing metastatic cancer cells by inducing apoptosis is of clinical importance in improving cancer patient survival. Previous studies revealed that fucoidan, a fucose-rich polysaccharide isolated from marine brown alga, is a promising natural product with significant anti-cancer activity. However, little is known about the role of endoplasmic reticulum (ER) stress in fucoidan-induced cell apoptosis. PRINCIPAL FINDINGS We reported that fucoidan treatment inhibits cell growth and induces apoptosis in cancer cells. Fucoidan treatments resulted in down-regulation of the glucose regulated protein 78 (GRP78) in the metastatic MDA-MB-231 breast cancer cells, and of the ER protein 29 (ERp29) in the metastatic HCT116 colon cancer cells. However, fucoidan treatment promoted ER Ca2+-dependent calmodulin-dependent kinase II (CaMKII) phosphorylation, Bcl-associated X protein (Bax) and caspase 12 expression in MDA-MB-231 cells, but not in HCT116 cells. In both types of cancer cells, fucoidan activated the phosphorylation of eukaryotic initiation factor 2 alpha (p-eIF2α)\CCAAT/enhancer binding protein homologous protein (CHOP) pro-apoptotic cascade and inhibited the phosphorylation of inositol-requiring kinase 1 (p-IRE-1)\X-box binding proteins 1 splicing (XBP-1s) pro-survival cascade. Furthermore, CHOP knockdown prevented DNA damage and cell death induced by fucoidan. CONCLUSION/SIGNIFICANCE Fucoidan exerts its anti-tumor function by modulating ER stress cascades. Contribution of ER stress to the fucoidan-induced cell apoptosis augments our understanding of the molecular mechanisms underlying its anti-tumour activity and provides evidence for the therapeutic application of fucoidan in cancer.
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Affiliation(s)
- Shaohua Chen
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University, Hangzhou, P. R. China
| | - Yang Zhao
- Centenary Institute of Cancer Medicine and Cell Biology, University of Sydney, Sydney, New South Wales, Australia
| | - Yu Zhang
- Department of Oncology, Zhejiang Hospital, Hangzhou, P. R. China
| | - Daohai Zhang
- Caner Research Group, The Canberra Hospital, ANU Medical School, The Australia National University, Canberra, Australia
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Arafuka S, Koshiba N, Takahashi D, Toshima K. Systematic synthesis of sulfated oligofucosides and their effect on breast cancer MCF-7 cells. Chem Commun (Camb) 2014; 50:9831-4. [PMID: 24946717 DOI: 10.1039/c4cc03544e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sulfated tetrafucosides with different sulfation patterns, and a non-sulfated tetrafucoside , were designed and systematically synthesized from the common key intermediate . In addition, their anti-proliferative activities and apoptosis-inducing activities against human breast cancer MCF-7 cells were evaluated. Our results demonstrated that the sulfated tetrafucosides reduced the number of MCF-7 cells in a dose-dependent manner, and of these, 3,4-O-sulfated type showed the highest anti-proliferative activity, comparable to the activity of fucoidan isolated from Fucus vesiculosus. Furthermore, it was revealed that both and exhibited apoptosis-inducing activities through activation of caspase-8 on MCF-7 cells.
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Affiliation(s)
- Shinsuke Arafuka
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
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Yang EJ, Moon JY, Kim SS, Yang KW, Lee WJ, Lee NH, Hyun CG. Jeju seaweeds suppress lipopolysaccharide-stimulated proinflammatory response in RAW 264.7 murine macrophages. Asian Pac J Trop Biomed 2014; 4:529-37. [PMID: 25183272 DOI: 10.12980/apjtb.4.2014c1099] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Accepted: 06/25/2014] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE To investigate the anti-inflammatory effects of Jeju seaweeds on macrophage RAW 264.7 cells under lipopolysaccharide (LPS) stimulation. METHODS Ethyl acetate fractions were prepared from five different types of Jeju seaweeds, Dictyopteris divaricata (D. divaricata), Dictyopteris prolifera (D. prolifera), Prionitis cornea (P. cornea), Grateloupia lanceolata (G. lanceolata), and Grateloupia filicina (G. filicina). They were screened for inhibitory effects on proinflammatory mediators and cytokines such as nitric oxide (NO), prostaglandin E2, tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6). RESULTS Our results revealed that D. divaricata, D. prolifera, P. cornea, G. lanceolata, and G. filicina potently inhibited LPS-stimulated NO production (IC50 values were 18.0, 38.36, 38.43, 32.81 and 37.14 µg/mL, respectively). Consistent with these findings, D. divaricata, D. prolifera, P. cornea, and G. filicina also reduced the LPS-induced and prostaglandin E2 production in a concentration-dependent manner. Expectedly, they suppressed the expression of inducible NO synthase and cyclooxygenase-2 at the protein level in a dose-dependent manner in the RAW 264.7 cells, as determined by western blotting. In addition, the levels of TNF-α and IL-6, released into the medium, were also reduced by D. divaricata, D. prolifera, P. cornea, G. lanceolata, and G. filicina in a dose-dependent manner (IC50 values for TNF-α were 16.11, 28.21, 84.27, 45.52 and 74.75 µg/mL, respectively; IC50 values for IL-6 were 37.35, 80.08, 103.28, 62.53 and 84.28 µg/mL, respectively). The total phlorotannin content was measured by the Folin-Ciocalteu method and expressed as phloroglucinol equivalents. The content was 92.0 µg/mg for D. divaricata, 151.8 µg/mg for D. prolifera, 57.2 µg/mg for P. cornea, 53.0 µg/mg for G. lanceolata, and 40.2 µg/mg for G. filicina. CONCLUSIONS Thus, these findings suggest that Jeju seaweed extracts have potential therapeutic applications for inflammatory responses.
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Affiliation(s)
- Eun-Jin Yang
- Cosmetic Science Center, Department of Chemistry, Jeju National University, Jeju 690-756, Korea ; Jeju Technopark, Ara-1-dong, Jeju-si, Jeju 690-121, Korea
| | - Ji-Young Moon
- Cosmetic Science Center, Department of Chemistry, Jeju National University, Jeju 690-756, Korea ; Jeju Technopark, Ara-1-dong, Jeju-si, Jeju 690-121, Korea
| | - Sang Suk Kim
- Cosmetic Science Center, Department of Chemistry, Jeju National University, Jeju 690-756, Korea ; Citrus Research Station, National Institute of Horticultural & Herbal Science, RDA, Jeju 699-946, Korea
| | - Kyong-Wol Yang
- Jeju Love Co., Ltd., 542-5 Haengwon-ri, Gujwa-eup, Jeju 695-975, Korea
| | - Wook Jae Lee
- Jeju Technopark, Ara-1-dong, Jeju-si, Jeju 690-121, Korea
| | - Nam Ho Lee
- Cosmetic Science Center, Department of Chemistry, Jeju National University, Jeju 690-756, Korea
| | - Chang-Gu Hyun
- Cosmetic Science Center, Department of Chemistry, Jeju National University, Jeju 690-756, Korea ; LINC Agency, Jeju National University, Ara-1-dong, Jeju 690-756, Korea
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177
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Wang P, Liu Z, Liu X, Teng H, Zhang C, Hou L, Zou X. Anti-metastasis effect of fucoidan from Undaria pinnatifida sporophylls in mouse hepatocarcinoma Hca-F cells. PLoS One 2014; 9:e106071. [PMID: 25162296 PMCID: PMC4146566 DOI: 10.1371/journal.pone.0106071] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 07/28/2014] [Indexed: 01/10/2023] Open
Abstract
Metastasis is one of the major causes of cancer-related death. It is a complex biological process involving multiple genes, steps, and phases. It is also closely connected to many biological activities of cancer cells, such as growth, invasion, adhesion, hematogenous metastasis, and lymphatic metastasis. Fucoidan derived from Undaria pinnatifida sporophylls (Ups-fucoidan) is a sulfated polysaccharide with more biological activities than other fucoidans. However, there is no information on the effects of Ups-fucoidan on tumor invasion and metastasis. We used the mouse hepatocarcinoma Hca-F cell line, which has high invasive and lymphatic metastasis potential in vitro and in vivo, to examine the effect of Ups-fucoidan on cancer cell invasion and metastasis. Ups-fucoidan exerted a concentration- and time-dependent inhibitory effect on tumor metastasis in vivo and inhibited Hca-F cell growth, migration, invasion, and adhesion capabilities in vitro. Ups-fucoidan inhibited growth and metastasis by downregulating vascular endothelial growth factor (VEGF) C/VEGF receptor 3, hepatocyte growth factor/c-MET, cyclin D1, cyclin-dependent kinase 4, phosphorylated (p) phosphoinositide 3-kinase, p-Akt, p-extracellular signal regulated kinase (ERK) 1/2, and nuclear transcription factor-κB (NF-κB), and suppressed adhesion and invasion by downregulating L-Selectin, and upregulating protein levels of tissue inhibitor of metalloproteinases (TIMPs). The results suggest that Ups-fucoidan suppresses Hca-F cell growth, adhesion, invasion, and metastasis capabilities and that these functions are mediated through the mechanism involving inactivation of the NF-κB pathway mediated by PI3K/Akt and ERK signaling pathways.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cell Adhesion/drug effects
- Cell Line, Tumor
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cyclin D1/antagonists & inhibitors
- Cyclin D1/genetics
- Cyclin D1/metabolism
- Cyclin-Dependent Kinase 4/antagonists & inhibitors
- Cyclin-Dependent Kinase 4/genetics
- Cyclin-Dependent Kinase 4/metabolism
- Dose-Response Relationship, Drug
- Gene Expression Regulation, Neoplastic
- Hepatocyte Growth Factor/antagonists & inhibitors
- Hepatocyte Growth Factor/genetics
- Hepatocyte Growth Factor/metabolism
- Liver Neoplasms, Experimental/drug therapy
- Liver Neoplasms, Experimental/genetics
- Liver Neoplasms, Experimental/metabolism
- Liver Neoplasms, Experimental/pathology
- Lymphatic Metastasis
- MAP Kinase Signaling System
- Male
- Mice
- NF-kappa B/antagonists & inhibitors
- NF-kappa B/genetics
- NF-kappa B/metabolism
- Phosphatidylinositol 3-Kinases/genetics
- Phosphatidylinositol 3-Kinases/metabolism
- Phosphoinositide-3 Kinase Inhibitors
- Plant Extracts/chemistry
- Polysaccharides/isolation & purification
- Polysaccharides/pharmacology
- Proto-Oncogene Proteins c-met/antagonists & inhibitors
- Proto-Oncogene Proteins c-met/genetics
- Proto-Oncogene Proteins c-met/metabolism
- Receptors, Vascular Endothelial Growth Factor/antagonists & inhibitors
- Receptors, Vascular Endothelial Growth Factor/genetics
- Receptors, Vascular Endothelial Growth Factor/metabolism
- Undaria/chemistry
- Vascular Endothelial Growth Factor A/antagonists & inhibitors
- Vascular Endothelial Growth Factor A/genetics
- Vascular Endothelial Growth Factor A/metabolism
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Affiliation(s)
- Peisheng Wang
- Department of Biotechnology, Dalian Medical University, Dalian, PR China
| | - Zhichao Liu
- Department of Biotechnology, Dalian Medical University, Dalian, PR China
| | - Xianli Liu
- Department of Biotechnology, Dalian Medical University, Dalian, PR China
| | - Hongming Teng
- Department of Biotechnology, Dalian Medical University, Dalian, PR China
| | - Cuili Zhang
- Department of Biotechnology, Dalian Medical University, Dalian, PR China
| | - Lin Hou
- College of Life Sciences, Liaoning Normal University, Dalian, PR China
| | - Xiangyang Zou
- Department of Biotechnology, Dalian Medical University, Dalian, PR China
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178
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Song YS, Li H, Balcos MC, Yun HY, Baek KJ, Kwon NS, Choi HR, Park KC, Kim DS. Fucoidan promotes the reconstruction of skin equivalents. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2014; 18:327-31. [PMID: 25177165 PMCID: PMC4146635 DOI: 10.4196/kjpp.2014.18.4.327] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 06/20/2014] [Accepted: 06/27/2014] [Indexed: 11/15/2022]
Abstract
In this study we investigated the effects of fucoidan on the proliferation of fibroblasts and the reconstruction of a skin equivalent (SE). Fucoidan significantly stimulated the proliferation of CCD-25Sk human fibroblasts and Western blot analysis demonstrated that fucoidan markedly increased the expression of cyclin D1 and decreased the expression of p27. Fucoidan was used to reconstruct SE. Immunohistochemical staining showed that the addition of fucoidan to dermal equivalents increased expression of proliferating cell nuclear antigen (PCNA) and p63. In addition, expression of α6-integrin was significantly increased by fucoidan, whereas expression of β1-integrin, type 1 collagen, elastin, fibronectin did not markedly change. These results suggest that fucoidan has positive effects on epidermal reconstruction and will therefore be beneficial in the reconstruction of SE.
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Affiliation(s)
- Yu Seok Song
- Department of Biochemistry, Chung-Ang University College of Medicine, Seoul 156-756, Korea
| | - Hailan Li
- Department of Biochemistry, Chung-Ang University College of Medicine, Seoul 156-756, Korea
| | - Marie Carmel Balcos
- Department of Biochemistry, Chung-Ang University College of Medicine, Seoul 156-756, Korea
| | - Hye-Young Yun
- Department of Biochemistry, Chung-Ang University College of Medicine, Seoul 156-756, Korea
| | - Kwang Jin Baek
- Department of Biochemistry, Chung-Ang University College of Medicine, Seoul 156-756, Korea
| | - Nyoun Soo Kwon
- Department of Biochemistry, Chung-Ang University College of Medicine, Seoul 156-756, Korea
| | - Hye-Ryung Choi
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea
| | - Kyoung-Chan Park
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea
| | - Dong-Seok Kim
- Department of Biochemistry, Chung-Ang University College of Medicine, Seoul 156-756, Korea
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179
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Zhou J, Yang L, Hu W. Stereoselective synthesis of a sulfated tetrasaccharide corresponding to a rare sequence in the galactofucan isolated from Sargassum polycystum. J Org Chem 2014; 79:4718-26. [PMID: 24766314 DOI: 10.1021/jo500503r] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The first chemical synthesis of a highly sulfated tetrasaccharide 1, as the rare sequence in the galactofucan isolated from the brown alga Sargassum polycystum, was achieved in a convergent and stereoselective manner. The key features of the synthetic strategy include construction of multiple contiguous 1,2-cis glycosidic bonds and [2 + 2] assembly based on the rationally developed d-galactose building block 6. The synthesized oligosaccharides were fully characterized using a combination of coupled-HSQC and other 2D NMR techniques.
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Affiliation(s)
- Jun Zhou
- Shanghai Engineering Research Centre of Molecular Therapeutics and New Drug Development, and Department of Chemistry, East China Normal University , Shanghai, 200062, PR China
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180
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Fucoidan inhibits the proliferation of human urinary bladder cancer T24 cells by blocking cell cycle progression and inducing apoptosis. Molecules 2014; 19:5981-98. [PMID: 24818577 PMCID: PMC6271230 DOI: 10.3390/molecules19055981] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Revised: 05/02/2014] [Accepted: 05/06/2014] [Indexed: 11/16/2022] Open
Abstract
Although fucoidan has been shown to exert anticancer activity against several types of cancer cell lines, no reports have explored fucoidan-affected cell growth in human urinary bladder cancer cells. In this study, we investigated the anti-proliferative effects of fucoidan in human bladder cancer T24 cells. Our results indicated that fucoidan decreased the viability of T24 cells through the induction of G1 arrest and apoptosis. Fucoidan-induced G1 arrest is associated with the enhanced expression of the Cdk inhibitor p21WAF1/CIP1 and dephosphorylation of the pRB along with enhanced binding of p21 to Cdk4/6 as well as pRB to the transcription factor E2Fs. Further investigations showed the loss of mitochondrial membrane potential and the release of cytochrome c from mitochondria to cytosol, proving mitochondrial dysfunction upon fucoidan treatment with a corresponding increase in the Bax/Bcl-2 expression ratio. Fucoidan-triggered apoptosis was also accompanied by the up-regulation of Fas and truncated Bid as well as the sequential activation of caspase-8. Furthermore, a significant increased activation of caspase-9/-3 was detected in response to fucoidan treatment with the decreased expression of IAPs and degradation of PARP, whereas a pan-caspase inhibitor significantly suppressed apoptosis and rescued the cell viability reduction. In conclusion, these observations suggest that fucoidan attenuates G1-S phase cell cycle progression and serves as an important mediator of crosstalk between caspase-dependent intrinsic and extrinsic apoptotic pathways in T24 cells.
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181
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Kwak JY. Fucoidan as a marine anticancer agent in preclinical development. Mar Drugs 2014; 12:851-70. [PMID: 24477286 PMCID: PMC3944519 DOI: 10.3390/md12020851] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 12/31/2013] [Accepted: 01/10/2014] [Indexed: 12/25/2022] Open
Abstract
Fucoidan is a fucose-containing sulfated polysaccharide derived from brown seaweeds, crude extracts of which are commercially available as nutritional supplements. Recent studies have demonstrated antiproliferative, antiangiogenic, and anticancer properties of fucoidan in vitro. Accordingly, the anticancer effects of fucoidan have been shown to vary depending on its structure, while it can target multiple receptors or signaling molecules in various cell types, including tumor cells and immune cells. Low toxicity and the in vitro effects of fucoidan mentioned above make it a suitable agent for cancer prevention or treatment. However, preclinical development of natural marine products requires in vivo examination of purified compounds in animal tumor models. This review discusses the effects of systemic and local administration of fucoidan on tumor growth, angiogenesis, and immune reaction and whether in vivo and in vitro results are likely applicable to the development of fucoidan as a marine anticancer drug.
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Affiliation(s)
- Jong-Young Kwak
- Department of Biochemistry, School of Medicine and Immune-Network Pioneer Research Center, Dong-A University, 32, Daesingongwon-ro, Seo-gu, Busan 602-714, Korea.
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182
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Abstract
Recently, there has been an increased interest in the pharmacologically active natural compounds isolated and used for remedies of various kinds of diseases, including cancer. The great deal of interest has been developed to isolate bioactive compounds from marine resources because of their numerous health beneficial effects. Among marine resources, marine algae are valuable sources of structurally diverse bioactive compounds. Fucoidan is a sulfated polysaccharide derived from brown seaweeds and has been used as an ingredient in some dietary supplement products. Fucoidan has various biological activities including antibacterial, antioxidant, anti-inflammatory, anticoagulant, and antitumor activities. So this chapter deals with anticancer effects of fucoidan.
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Affiliation(s)
- Kalimuthu Senthilkumar
- Specialized Graduate School Science and Technology Convergence, Department of Marine Bio Convergence Science, Pukyong National University, Busan, South Korea; Department of Nuclear Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Se-Kwon Kim
- Department of Marine-bio Convergence Science, Specialized Graduate School Science and Technology Convergence, Marine Bioprocess Research Center, Pukyong National University, Busan, South Korea.
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183
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Willcox BJ, Willcox DC. Caloric restriction, caloric restriction mimetics, and healthy aging in Okinawa: controversies and clinical implications. Curr Opin Clin Nutr Metab Care 2014; 17:51-8. [PMID: 24316687 PMCID: PMC5403510 DOI: 10.1097/mco.0000000000000019] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW To examine the role of two nutritional factors implicated in the healthy aging of the Okinawans: caloric restriction; and traditional foods with potential caloric restriction-mimetic properties. RECENT FINDINGS Caloric restriction is a research priority for the US National Institute on Aging. However, little is known regarding health effects in humans. Some caloric restriction-related outcomes, such as cause-specific mortality and lifespan, are not practical for human clinical trials. Therefore, epidemiological data on older Okinawans, who experienced a caloric restriction-like diet for close to half their lives, are of special interest. The nutritional data support mild caloric restriction (10-15%) and high consumption of foods that may mimic the biological effects of caloric restriction, including sweet potatoes, marine-based carotenoid-rich foods, and turmeric. Phenotypic evidence is consistent with caloric restriction (including short stature, low body weight, and lean BMI), less age-related chronic disease (including cardiovascular diseases, cancer, and dementia), and longer lifespan (mean and maximum). SUMMARY Both caloric restriction and traditional Okinawan functional foods with caloric restriction-mimetic properties likely had roles in the extended healthspan and lifespan of the Okinawans. More research is needed on health consequences of caloric restriction and foods with caloric restriction-mimetic properties to identify possible nutritional interventions for healthy aging.
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Affiliation(s)
- Bradley J. Willcox
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, HPM-9, 347 N. Kuakini Street, Honolulu HI. 96817
- Department of Research, Kuakini Medical Center, 347 N. Kuakini Street, Honolulu HI. 96817
| | - Donald Craig Willcox
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, HPM-9, 347 N. Kuakini Street, Honolulu HI. 96817
- Department of Research, Kuakini Medical Center, 347 N. Kuakini Street, Honolulu HI. 96817
- Okinawa International University, Department of Human Welfare, 2-6-1 Ginowan, Okinawa, Japan 901-2701
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184
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Il Jung H, Jo MJ, Kim HR, Choi YH, Kim GD. Extract of Saccharina japonica induces apoptosis companied by cell cycle arrest and endoplasmic reticulum stress in SK-Hep1 human hepatocellular carcinoma cells. Asian Pac J Cancer Prev 2014; 15:2993-9. [PMID: 24815436 DOI: 10.7314/apjcp.2014.15.7.2993] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Saccharina japonica is a family member of Phaeophyceae (brown macro-alga) and extensively cultivated in China, Japan and Korea. Here, the potential anti-cancer effect of n-hexane fraction of S. japonica was evaluated in SK-Hep1 human hepatocellular carcinoma cells. The N-hexane fraction reduced cell viability and increased the numbers of apoptotic cells in a both dose- and time-dependent manner. Apoptosis was activated by both caspase-dependent and independent pathways. The caspase-dependent cell death pathway is mediated by cell surface death receptors and activated caspase-8 amplified the apoptotic signal either through direct activation of downstream caspase-3 or pro-apoptotic proteins (Bad, Bax and Bak) subsequently leading to the release of cytochrome c. On the other hand, caspase-independent apoptosis appeared mediated by disruption of mitochondrial membrane potential and translocation of AIF to the nucleus where they induced chromatin condensation and/or large-scale DNA fragmentation. In addition, the n-hexane fraction induced endoplasmic reticulum (ER)-stress and cell cycle arrest. The results suggested that potential anti-cancer effects of n-hexane extract from S. japonica on SK-Hep1 cells.
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Affiliation(s)
- Hyun Il Jung
- Department of Microbiology, College of Natural Sciences, Pukyong National University, Busan, Korea E-mail :
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185
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186
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Rujitanaroj PO, Aid-Launais R, Chew SY, Le Visage C. Polysaccharide electrospun fibers with sulfated poly(fucose) promote endothelial cell migration and VEGF-mediated angiogenesis. Biomater Sci 2014; 2:843-852. [DOI: 10.1039/c3bm60245a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study demonstrates the potential of fucoidan-incorporated pullulan–dextran fibers as tunable reservoirs for VEGF delivery to promote angiogenesis.
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Affiliation(s)
- Pim-On Rujitanaroj
- Nanyang Technological University
- School of Chemical & Biomedical Engineering
- Singapore 637459, Singapore
| | | | - Sing Yian Chew
- Nanyang Technological University
- School of Chemical & Biomedical Engineering
- Singapore 637459, Singapore
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187
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Abstract
Seaweeds are a characteristic part of the traditional diet in countries such as Japan and Korea; these countries also have a lower prevalence of metabolic syndrome than countries such as the USA and Australia. This suggests that seaweeds may contain compounds that reduce the characteristic signs of obesity, diabetes, hypertension, fatty liver and inflammation in the metabolic syndrome. Potentially bioactive compounds from seaweeds include polysaccharides, peptides, pigments, minerals and omega-3 fatty acids. This review emphasises current research on these compounds in isolated cells, animal models and patients. Key problems for future research include chemical characterisation of the bioactive principles, defining pharmacological responses in all aspects of the metabolic syndrome, determining if a therapeutic dose has been administered, and defining oral bioavailability of the active ingredients.
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188
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Liao CH, Lai IC, Kuo HC, Chuang SE, Lee HL, Whang-Peng J, Yao CJ, Lai GM. [Breath test using C-13-trioleate in the evaluation of the rate of fatty acid metabolism after parenteral feeding of premature and newborn infants]. Mar Drugs 1989; 17:md17090525. [PMID: 31500384 PMCID: PMC6780514 DOI: 10.3390/md17090525] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/31/2019] [Accepted: 09/03/2019] [Indexed: 12/12/2022] Open
Abstract
Malignant glioma (MG) is a poor prognostic brain tumor with inevitable recurrence after multimodality treatment. Searching for more effective treatment is urgently needed. Differentiation induction via epigenetic modification has been proposed as a potential anticancer strategy. Natural products are known as fruitful sources of epigenetic modifiers with wide safety margins. We thus explored the effects of oligo-fucoidan (OF) from brown seaweed on this notion in MG cells including Grade III U87MG cells and Grade IV glioblastoma multiforme (GBM)8401 cells and compared to the immortalized astrocyte SVGp12 cells. The results showed that OF markedly suppress the proliferation of MG cells and only slightly affected that of SVGp12 cells. OF inhibited the protein expressions of DNA methyltransferases 1, 3A and 3B (DNMT1, 3A and 3B) accompanied with obvious mRNA induction of differentiation markers (MBP, OLIG2, S100β, GFAP, NeuN and MAP2) both in U87MG and GBM8401 cells. Accordingly, the methylation of p21, a DNMT3B target gene, was decreased by OF. In combination with the clinical DNMT inhibitor decitabine, OF could synergize the growth inhibition and MBP induction in U87MG cells. Appropriated clinical trials are warranted to evaluate this potential complementary approach for MG therapy after confirmation of the effects in vivo.
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Affiliation(s)
- Chien-Huang Liao
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - I-Chun Lai
- Division of Radiation Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Hui-Ching Kuo
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Shuang-En Chuang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Hsin-Lun Lee
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
| | - Jacqueline Whang-Peng
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 11031, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Chih-Jung Yao
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan.
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Gi-Ming Lai
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan.
- National Institute of Cancer Research, National Health Research Institutes, Miaoli 35053, Taiwan.
- Taipei Cancer Center, Taipei Medical University, Taipei 11031, Taiwan.
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan.
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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