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Liu S, Wang Q, Shao Z, Liu Q, He Y, Ren D, Yang H, Li X. Purification and Characterization of the Enzyme Fucoidanase from Cobetia amphilecti Utilizing Fucoidan from Undaria pinnatifida. Foods 2023; 12:foods12071555. [PMID: 37048377 PMCID: PMC10094035 DOI: 10.3390/foods12071555] [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: 02/02/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 04/14/2023] Open
Abstract
Fucoidanase is an unstable enzyme with high specificity that requires a large about of time to screen it from microorganisms. In this study, enzymatic hydrolysis was used to produce low-molecular-weight fucoidan from microorganisms via the degradation of high-molecular-weight fucoidan without damage to the sulfate esterification structure of oligosaccharide. The microbial strain HN-25 was isolated from sea mud and was made to undergo mutagenicity under ultraviolet light. Fucoidanase was extracted via ultrasonication and its enzymatic activity was improved via optimization of the ultrasonic conditions. The enzymatic properties and degradation efficiency of fucoidanase were characterized. The microbial strain HN-25 is a Gram-negative aerobic and rod-shaped-cell bacterium, and therefore was identified as Cobetia amphilecti via 16s rDNA. The results proved that fucoidanase is a hydrolytic enzyme with a molecular weight of 35 kDa and with high activity and stability at 30 °C and pH 8.0. The activity of fucoidanase was significantly enhanced by sodium and calcium ions and inhibited by a copper ion and ethylenediaminetetraacetate (EDTA). There was a significant decrease in the molecular weight of fucoidan after enzymatic hydrolysis. The low-molecular-weight fuicodan was divided into four fractions, mainly concentrated at F3 (20~10 kDa) and F4 (≤6 kDa). These consequences suggest that fucoidanase obtained from Cobetia amphilecti is stable and efficient and could be a good tool in the production of bioactive compounds.
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Affiliation(s)
- Shu Liu
- Colleage of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China
- Key Laboratory of Aquatic Products Processing and Utilization of Liaoning Province, National R and D Branch Center for Seaweed Processing, College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Qiukuan Wang
- Key Laboratory of Aquatic Products Processing and Utilization of Liaoning Province, National R and D Branch Center for Seaweed Processing, College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Zhenwen Shao
- Qingdao Seawit Life Science Co., Ltd., Qingdao 370200, China
| | - Qi Liu
- Bureau of Science and Technology of Qingdao West Area, Qingdao 266555, China
| | - Yunhai He
- Key Laboratory of Aquatic Products Processing and Utilization of Liaoning Province, National R and D Branch Center for Seaweed Processing, College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Dandan Ren
- Key Laboratory of Aquatic Products Processing and Utilization of Liaoning Province, National R and D Branch Center for Seaweed Processing, College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Hong Yang
- Colleage of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China
| | - Xiang Li
- Key Laboratory of Aquatic Products Processing and Utilization of Liaoning Province, National R and D Branch Center for Seaweed Processing, College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
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Dubashynskaya NV, Gasilova ER, Skorik YA. Nano-Sized Fucoidan Interpolyelectrolyte Complexes: Recent Advances in Design and Prospects for Biomedical Applications. Int J Mol Sci 2023; 24:ijms24032615. [PMID: 36768936 PMCID: PMC9916530 DOI: 10.3390/ijms24032615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
The marine polysaccharide fucoidan (FUC) is a promising polymer for pharmaceutical research and development of novel drug delivery systems with modified release and targeted delivery. The presence of a sulfate group in the polysaccharide makes FUC an excellent candidate for the formation of interpolyelectrolyte complexes (PECs) with various polycations. However, due to the structural diversity of FUC, the design of FUC-based nanoformulations is challenging. This review describes the main strategies for the use of FUC-based PECs to develop drug delivery systems with improved biopharmaceutical properties, including nanocarriers in the form of FUC-chitosan PECs for pH-sensitive oral delivery, targeted delivery systems, and polymeric nanoparticles for improved hydrophobic drug delivery (e.g., FUC-zein PECs, core-shell structures obtained by the layer-by-layer self-assembly method, and self-assembled hydrophobically modified FUC particles). The importance of a complex study of the FUC structure, and the formation process of PECs based on it for obtaining reproducible polymeric nanoformulations with the desired properties, is also discussed.
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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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4
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Tang S, Ma Y, Dong X, Zhou H, He Y, Ren D, Wang Q, Yang H, Liu S, Wu L. Enzyme-assisted extraction of fucoidan from Kjellmaniella crassifolia based on kinetic study of enzymatic hydrolysis of algal cellulose. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Lin P, Chen S, Zhong S. Nutritional and Chemical Composition of Sargassum zhangii and the Physical and Chemical Characterization, Binding Bile Acid, and Cholesterol-Lowering Activity in HepG2 Cells of Its Fucoidans. Foods 2022; 11:foods11121771. [PMID: 35741969 PMCID: PMC9223202 DOI: 10.3390/foods11121771] [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: 05/22/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 11/16/2022] Open
Abstract
Fucoidan is a marine sulfated polysaccharide that is rich in Sargassum and has a wide range of biological activities. In this study, the chemical composition and bile acid binding ability of six crude fucoidans were compared, the nutrition and chemical composition of Sargassum zhangii were analyzed, and fucoidan from Sargassum zhangii was extracted and purified. The purified fractions (ZF1, ZF2, and ZF3) were analyzed by physicochemical characterization, and the ability of binding bile acid and cholesterol lowering in HepG2 cells were evaluated. The results showed that the contents of sulfate in crude fucoidan from Sargassum Zhangii (ZF) was as high as13.63%. Its ability of binding bile acid was better than other five crude fucoidans. Sargassum zhangii was a kind of brown seaweed with high carbohydrate, and low fat and rich in minerals. The sulfate content of ZF1, ZF2, and ZF3 was 3.29%, 19.39%, and 18.89% respectively, and the molecular weight (Mw) was 4.026 × 105, 2.893 × 105, and 3.368 × 105, respectively. Three fucoidans all contained the characteristic absorption bands of polysaccharides and sulfate groups and were rich in fucose. Three fucoidans can bind to bile acid, and ZF2 showed the best binding capability. In vitro experiments showed that ZF1, ZF2, and ZF3 could reduce intracellular total cholesterol (TC) content in HepG2 cells without affecting their viability. ZF2 showed the best ability to reduce TC.
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Affiliation(s)
- Peichun Lin
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China;
| | - Suhua Chen
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China;
- Correspondence: ; Tel.: +86-759-239-6026
| | - Siyan Zhong
- School of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China;
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Anti-Dengue Activity of ZnO Nanoparticles of Crude Fucoidan from Brown Seaweed S.marginatum. Appl Biochem Biotechnol 2022; 195:3747-3763. [PMID: 35587327 DOI: 10.1007/s12010-022-03966-w] [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: 11/30/2021] [Accepted: 05/10/2022] [Indexed: 11/02/2022]
Abstract
Dengue fever is a rapidly spreading infection that affects people all over the tropics and subtropics, posing a significant public health threat. The brown seaweed Stoechospermum marginatum was found all over the world, from South Africa (Indian Ocean) to Australia (Pacific Ocean), among other places. In India, it is only available along the coast of the Bay of Bengal, which is a small region. Various metal oxides were proved to be successful in the formation of nanoparticles and zinc is one among them. In this present study, an attempt was made to study the anti-dengue activity of green synthesized zinc oxide nanoparticles of crude fucoidan isolated from brown seaweed S. marginatum. The fucoidan was isolated from the seaweed by acid extraction method and then characterized by UV, HPLC, and Fourier Transform Infra-Red (FT-IR) Spectroscopy. Then it was biosynthesized into ZnO nanoparticles and characterized by SEM-EDAX analysis. The results showed the formation of fucoidans and SEM studies showed the crystalline nature of the synthesized nanoparticles. The size of nanoparticles was in the range of 80-126 nm. The synthesized nanoparticles were tested with the C6/36 cell line and it was shown 99.09% of anti-dengue activity against the tested cell line. As an antiviral agent, the ZnO nanoparticles of fucoidans have been shown to be an excellent lead molecule for the treatment of dengue fever.
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Yuan L, Zhong ZC, Liu Y, Quan H, Lu YZ, Zhang EH, Cai H, Li LQ, Lan XZ. Structures and immunomodulatory activity of one galactose- and arabinose-rich polysaccharide from Sambucus adnata. Int J Biol Macromol 2022; 207:730-740. [PMID: 35346678 DOI: 10.1016/j.ijbiomac.2022.03.132] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/02/2022] [Accepted: 03/21/2022] [Indexed: 11/28/2022]
Abstract
One galactose- and arabinose-rich polysaccharide isolated from Sambucus adnata was named SPS-1, which had an average molecular weight 138.52 kDa, and was composed of L-rhamnose, D-glucuronic acid, D-galacturonic acid, D-galactose, and L-arabinose in a molar ratio of 0.6:0.4:0.1:4.9:4.0. The primary structure of SPS-1 was further analyzed through methylation and NMR spectroscopy. The results showed that SPS-1 had the structural characteristics of AG-II pectin. The immunoactivity test showed that SPS-1 activated the phosphorylation of MAPKs-related proteins and further elevated the expression levels of related nuclear transcription factors (IκBα and NF-κB p65) in the cells through the TLR2 and MyD88/TRAF6-dependent pathway, thereby significantly enhancing the phagocytosis of macrophages and stimulating the secretion of NO, IL-1β, IL-6, and TNF-α, which activated the RAW264.7 cells. Therefore, SPS-1, acting as an immunomodulator, is a potential drug for immunological diseases.
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Affiliation(s)
- Lei Yuan
- The Provincial and Ministerial Co-Founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China; Biotechnology Center, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China.
| | - Zheng-Chang Zhong
- The Center for Xizang Chinese (Tibetan) Medicine Resource, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China
| | - Yu Liu
- The Center for Xizang Chinese (Tibetan) Medicine Resource, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China
| | - Hong Quan
- The Provincial and Ministerial Co-Founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China; Research Institute of Plateau Ecology, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China
| | - Ya-Zhou Lu
- The Provincial and Ministerial Co-Founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China; The Center for Xizang Chinese (Tibetan) Medicine Resource, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China
| | - Er-Hao Zhang
- The Provincial and Ministerial Co-Founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China; The Center for Xizang Chinese (Tibetan) Medicine Resource, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China
| | - Hao Cai
- The Provincial and Ministerial Co-Founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China; The Center for Xizang Chinese (Tibetan) Medicine Resource, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China
| | - Lian-Qiang Li
- The Provincial and Ministerial Co-Founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China; The Center for Xizang Chinese (Tibetan) Medicine Resource, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China
| | - Xiao-Zhong Lan
- The Provincial and Ministerial Co-Founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China; The Center for Xizang Chinese (Tibetan) Medicine Resource, Tibet Agriculture and Animal Husbandry University, Nyingchi of Tibet 860000, China.
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Lee WK, Ho CL. Ecological and evolutionary diversification of sulphated polysaccharides in diverse photosynthetic lineages: A review. Carbohydr Polym 2022; 277:118764. [PMID: 34893214 DOI: 10.1016/j.carbpol.2021.118764] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/02/2022]
Abstract
Sulphated polysaccharides (SPs) are carbohydrate macromolecules with sulphate esters that are found among marine algae, seagrasses, mangroves and some terrestrial plants. The sulphate concentration in the ocean (28 mM) since ancient time could have driven the production of SPs in marine algae. SPs have a gelatinous property that can protect marine algae against desiccation and salinity stress. Agar and carrageenan are red algal SPs that are widely used as gelling agents in the food and pharmaceutical industries. The information on the SPs from freshwater and land plants are limited. In this review, we reviewed the taxonomic distribution and composition of SPs in different photosynthetic lineages, and explored the association of SP production in these diversified photosynthetic organisms with evolution history and environmental stresses. We also reviewed the genes/proteins involved in SP biosynthesis. Insights into SP biosynthetic machinery may shed light on the evolution that accompanied adaptation to life on earth.
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Affiliation(s)
- Wei-Kang Lee
- Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM-Serdang, Selangor, Malaysia; Codon Genomics Sdn Bhd, No. 26, Jalan Dutamas 7, Taman Dutamas Balakong, 43200, Seri Kembangan, Selangor, Malaysia.
| | - Chai-Ling Ho
- Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM-Serdang, Selangor, Malaysia.
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Zhao H, Liu S, Zhao H, Liu Y, Xue M, Zhang H, Qiu X, Sun Z, Liang H. Protective effects of fucoidan against ethanol-induced liver injury through maintaining mitochondrial function and mitophagy balance in rats. Food Funct 2021; 12:3842-3854. [PMID: 33977968 DOI: 10.1039/d0fo03220d] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
For alcoholic liver disease (ALD), mitophagy has been reported as a promising therapeutic strategy to alleviate the hepatic lesion elicited by ethanol. This study was conducted to investigate the regulatory effects of fucoidan on mitophagy induced by chronic ethanol administration in rats. Here, 20 male rats in each group were treated with fucoidan (150 and 300 mg per kg body weight) by gavage once daily. Up to 56% liquor (7 to 9 mL per kg body weight) was orally administered 1 h after the fucoidan treatment for 20 weeks. The results showed that chronic ethanol consumption elevated the levels of hepatic enzymes (ALT, AST, and GGT) and triglyceride (TG) contents, with liver antioxidant enzymes being decreased and lipid peroxidation products increased and thus initiating the mitochondria-induced endogenous apoptotic pathway. Furthermore, ethanol-induced excessive oxidative stress inhibited the function of mitochondria and promoted damaged mitochondria accumulation which stimulated the PTEN-induced putative kinase 1 (PINK1) and Parkin associated mitophagic pathway in the liver. In contrast, the fucoidan pretreatment alleviated ethanol-induced histopathological changes, disorders of lipid metabolism, and oxidative damage with mitophagy related proteins and mitochondrial dynamics-related proteins namely mitochondrial E3 ubiquitin ligase 1 (Mul1), mitofusin2 (Mfn2) and dynamin-related protein 1 (Drp1) being restored to a normal level. In summary, our findings suggest that fucoidan pretreatment protects against ethanol-induced damaged mitochondria accumulation and over-activated mitophagy, which plays a pivotal role in maintaining mitochondrial homeostasis and ensuring mitochondrial quality.
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Affiliation(s)
- Huichao Zhao
- The Institute of Human Nutrition, Qingdao University, Ning Xia Road 308, Qingdao 266071, China.
| | - Shuang Liu
- The Institute of Human Nutrition, Qingdao University, Ning Xia Road 308, Qingdao 266071, China.
| | - Hui Zhao
- The Institute of Human Nutrition, Qingdao University, Ning Xia Road 308, Qingdao 266071, China.
| | - Ying Liu
- Basic Medical College, Qingdao University, Ning Xia Road 308, Qingdao 266071, China
| | - Meilan Xue
- Basic Medical College, Qingdao University, Ning Xia Road 308, Qingdao 266071, China
| | - Huaqi Zhang
- The Institute of Human Nutrition, Qingdao University, Ning Xia Road 308, Qingdao 266071, China.
| | - Xia Qiu
- State Key Laboratory of Bioactive Seaweed Substances, Qingdao Bright Moon Seaweed Group Co., Ltd, Qingdao 266400, China
| | - Zhanyi Sun
- State Key Laboratory of Bioactive Seaweed Substances, Qingdao Bright Moon Seaweed Group Co., Ltd, Qingdao 266400, China
| | - Hui Liang
- The Institute of Human Nutrition, Qingdao University, Ning Xia Road 308, Qingdao 266071, China.
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Lafarga T, Acién-Fernández FG, Garcia-Vaquero M. Bioactive peptides and carbohydrates from seaweed for food applications: Natural occurrence, isolation, purification, and identification. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101909] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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11
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Dimitrova-Shumkovska J, Krstanoski L, Veenman L. Potential Beneficial Actions of Fucoidan in Brain and Liver Injury, Disease, and Intoxication-Potential Implication of Sirtuins. Mar Drugs 2020; 18:E242. [PMID: 32380741 PMCID: PMC7281157 DOI: 10.3390/md18050242] [Citation(s) in RCA: 31] [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: 03/26/2020] [Revised: 04/23/2020] [Accepted: 05/01/2020] [Indexed: 12/14/2022] Open
Abstract
Increased interest in natural antioxidants has brought to light the fucoidans (sulfated polysaccharides present in brown marine algae) as highly valued nutrients as well as effective and safe therapeutics against several diseases. Based on their satisfactory in vitro antioxidant potency, researchers have identified this molecule as an efficient remedy for neuropathological as well as metabolic disorders. Some of this therapeutic activity is accomplished by upregulation of cytoprotective molecular pathways capable of restoring the enzymatic antioxidant activity and normal mitochondrial functions. Sirtuin-3 has been discovered as a key player for achieving the neuroprotective role of fucoidan by managing these pathways, whose ultimate goal is retrieving the entirety of the antioxidant response and preventing apoptosis of neurons, thereby averting neurodegeneration and brain injuries. Another pathway whereby fucoidan exerts neuroprotective capabilities is by interactions with P-selectin on endothelial cells, thereby preventing macrophages from entering the brain proper. Furthermore, beneficial influences of fucoidan have been established in hepatocytes after xenobiotic induced liver injury by decreasing transaminase leakage and autophagy as well as obtaining optimal levels of intracellular fiber, which ultimately prevents fibrosis. The hepatoprotective role of this marine polysaccharide also includes a sirtuin, namely sirtuin-1 overexpression, which alleviates obesity and insulin resistance through suppression of hyperglycemia, reducing inflammation and stimulation of enzymatic antioxidant response. While fucoidan is very effective in animal models for brain injury and neuronal degeneration, in general, it is accepted that fucoidan shows somewhat limited potency in liver. Thus far, it has been used in large doses for treatment of acute liver injuries. Thus, it appears that further optimization of fucoidan derivatives may establish enhanced versatility for treatments of various disorders, in addition to brain injury and disease.
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Affiliation(s)
- Jasmina Dimitrova-Shumkovska
- Department of Experimental Biochemistry, Institute of Biology, Faculty of Natural Sciences and Mathematics, University Ss Cyril and Methodius, Arhimedova 6, P.O. Box 162, 1000 Skopje, Macedonia;
| | - Ljupcho Krstanoski
- Department of Experimental Biochemistry, Institute of Biology, Faculty of Natural Sciences and Mathematics, University Ss Cyril and Methodius, Arhimedova 6, P.O. Box 162, 1000 Skopje, Macedonia;
| | - Leo Veenman
- Israel Institute of Technology, Faculty of Medicine, Rappaport Institute of Medical Research, 1 Efron Street, P.O. Box 9697, Haifa 31096, Israel
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Yang Y, Ji J, Di L, Li J, Hu L, Qiao H, Wang L, Feng Y. Resource, chemical structure and activity of natural polysaccharides against alcoholic liver damages. Carbohydr Polym 2020; 241:116355. [PMID: 32507196 DOI: 10.1016/j.carbpol.2020.116355] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/11/2020] [Accepted: 04/19/2020] [Indexed: 12/19/2022]
Abstract
Many natural polysaccharides from bio-resources hold advantages of multi-functions, high efficiency, non-toxicity or low side effect, and have strong potentials in protection against alcoholic liver damages. This review summarized the bio-resources, chemical and structural characteristics of natural polysaccharides with potentials in inhibition against alcoholic liver damages, and also emphasized knowledge on correlations between their chemical structure and function. Approximately 95 species were confirmed in generation of hepatoprotective polysaccharides. Products as crude polysaccharides originated from 17 species were sum up despite the indetermination of their accurate structure. Additional four polysaccharides were described for their known chemical structures. Possible roles of hepatoprotective polysaccharides were provided with evidence on antioxidant promotion, lipids regulation, apoptosis inhibition and anti-inflammation, as well as confirmations in immune enhancement, iron removal and anti-fibrosis when currently treated against the alcoholic liver damages. To sum up, this overview could serve to guide development and utilization of natural hepatoprotective polysaccharides.
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Affiliation(s)
- Ying Yang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province, 210023, PR China
| | - Jing Ji
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province, 210023, PR China
| | - Liuqing Di
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province, 210023, PR China
| | - Junsong Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province, 210023, PR China
| | - Lihong Hu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province, 210023, PR China
| | - Hongzhi Qiao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province, 210023, PR China
| | - Lingchong Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province, 210023, PR China; School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region.
| | - Yibin Feng
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region.
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Wang L, Yang Y, Tan HY, Li S, Feng Y. Protective Actions of Acidic Hydrolysates of Polysaccharide Extracted From Mactra veneriformis Against Chemical-Induced Acute Liver Damage. Front Pharmacol 2020; 11:446. [PMID: 32390833 PMCID: PMC7194112 DOI: 10.3389/fphar.2020.00446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 03/20/2020] [Indexed: 11/17/2022] Open
Abstract
The present study aimed to explore the hepatoprotective effects of acidic hydrolysates of polysaccharide extracted from the marine clam M. veneriformis (Ah-MVPS) against ethanol- and CCl4-induced liver damage. Moreover, we also seek to probe the mechanism associated with the liver protection effect of Ah-MVPS. A series of animal and cell experiments were executed to detect suitable serological and histological indicators in hepatic tissues. Ah-MVPS can significantly reduce liver damage by means of an increase in hepatocyte superoxidase dismutase and inhibition of leakages of alanine aminotransferase and aspartate transaminase, as well as through alleviation of malondialdehyde excalation. Ah-MVPS inhibited steatosis and water-like hepatic deterioration in histological examination. They can suppress membrane destruction in boundaries and the collapse of reticular scaffolds of injured mouse hepatocytes and can substantially reduce the inflammatory extent of liver tissue aroused by excessive intake of ethanol or CCl4. In cell assays, Ah-MVPS markedly elevated the viability of L-02 cells exposed to an intoxication of ethanol or H2O2. The beneficial effect of Ah-MVPS might arise, at least in part, because of the amelioration of peroxidation or oxidative stress. Taken together, our findings reveal that Ah-MVPS have potential for development as protective agents to attenuate acute liver injuries.
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Affiliation(s)
- Lingchong Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, China
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Ying Yang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, China
| | - Hor-Yue Tan
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Sha Li
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Yibin Feng
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
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Hu Y, Ren D, Song Y, Wu L, He Y, Peng Y, Zhou H, Liu S, Cong H, Zhang Z, Wang Q. Gastric protective activities of fucoidan from brown alga Kjellmaniella crassifolia through the NF-κB signaling pathway. Int J Biol Macromol 2020; 149:893-900. [PMID: 31972198 DOI: 10.1016/j.ijbiomac.2020.01.186] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/21/2019] [Accepted: 01/20/2020] [Indexed: 12/29/2022]
Abstract
Fucoidan has been reported to have abundant biological activities. The objective of the present study was to detect the protective effects of fucoidan from Kjellmaniella crassifolia (KF) newly cultured in Dalian, North of China on aspirin-induced gastric ulcers of the Wistar rat model. The present study showed that inflammatory cytokines tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and IL-10 were effectively regulated in rats pretreated with KF. Superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities increased significantly in the KF pretreated groups, while the levels of maleic dialdehyde (MDA) decreased. The findings obtained by RT-PCR and western blotting indicated that KF could suppress aspirin-induced NF-κB activation via stabilization of IκB-α and thereby induced the downregulation of COX-2 and iNOS. It was demonstrated that KF exerted positive gastric protective effects via suppression of the inflammatory response and oxidative stress, and the mechanism of KF appeared to mediate the NF-κB signaling pathway.
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Affiliation(s)
- Yue Hu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Dandan Ren
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Yuefan Song
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Long Wu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Yunhai He
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Yongbo Peng
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Hui Zhou
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Shu Liu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Haihua Cong
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Zeyu Zhang
- National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Qiukuan Wang
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
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15
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Wang W, Xue C, Mao X. Radioprotective effects and mechanisms of animal, plant and microbial polysaccharides. Int J Biol Macromol 2020; 153:373-384. [PMID: 32087223 DOI: 10.1016/j.ijbiomac.2020.02.203] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/14/2020] [Accepted: 02/18/2020] [Indexed: 12/11/2022]
Abstract
Ionizing radiation is increasingly used to successfully diagnose many human health problems, but ionizing radiation may cause damage to organs/tissues in the living organisms such as the spleen, liver, skin, and brain. Many radiation protective agents have been discovered, with the deepening of radiation research. Unfortunately, these protective agents have many side effects, which cause drug resistance, nausea, vomiting, osteoporosis, etc. The polysaccharides extracted from natural sources are widely available and low in toxicity. In vivo and in vitro experiments have demonstrated that polysaccharides have anti-radiation activity through anti-oxidation, immune regulation, protection of hematopoietic system and protection against DNA damage. Recently, some studies have shown that polysaccharides were resistant to radiation. In the review, the anti-radiation activities of polysaccharides from different sources are summarized, and the anti-radiation mechanisms are discussed as well. It can be used to develop more effective anti-radiation management drugs.
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Affiliation(s)
- Wenjie Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, China.
| | - Xiangzhao Mao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, China.
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16
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Chale-Dzul J, Pérez-Cabeza de Vaca R, Quintal-Novelo C, Olivera-Castillo L, Moo-Puc R. Hepatoprotective effect of a fucoidan extract from Sargassum fluitans Borgesen against CCl 4-induced toxicity in rats. Int J Biol Macromol 2020; 145:500-509. [PMID: 31874267 DOI: 10.1016/j.ijbiomac.2019.12.183] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 11/29/2019] [Accepted: 12/20/2019] [Indexed: 12/26/2022]
Abstract
The in vivo antifibrotic effect of a fucoidan extract (FE) from Sargassum fluitans Borgesen was evaluated in a carbon tetrachloride-induced liver damage model in rats over twelve weeks. Chemical analysis showed the FE to contain carbohydrates, sulfates, uronic acids, protein, phenols, and to have a molecular weight of ~60 kDa. Physiological, biochemical, histological and genetic assays were done. Daily oral administration of FE (50 mg/kg) reduced liver enzymatic activity, liver infiltration of inflammatory cells, collagen fiber deposition and gene expression cytokines such as interleukin beta 1 (IL-β1), tumor necrosis factor alpha (TNF-α), transforming growth factor beta 1 (TGF-β1), Smad-3, Smad-2, collagen 1 alpha 1 (col1α1) and tissue inhibitor of metalloproteinase 1 (TIMP-1). It also increased RNA expression of Smad-7 and metalloproteinase 2 and 9 (MMP2 and MMP9). The fucoidan extract exhibited an antifibrotic effect mediated by the inhibiting TGF-β1/Smad pathway, as well as anti-inflammatory effects.
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Affiliation(s)
- Juan Chale-Dzul
- Laboratorio de Apoyo a la Vigilancia Epidemiológica, Hospital de Especialidades 1, Centro Médico Nacional Ignacio García Téllez, Instituto Mexicano del Seguro Social, C 41 No. 439 x 32 y 34, Col. Industrial, 97150 Merida, Yucatan, Mexico
| | | | - Carlos Quintal-Novelo
- Unidad Médica de Alta Especialidad, Centro Médico Ignacio García Téllez, Instituto Mexicano del Seguro Social, C. 41, No. 439, Col. Industrial, 97150 Mérida, Yucatan, Mexico
| | - Leticia Olivera-Castillo
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Carretera Antigua Progreso Km. 6, 97310 Mérida, Yucatán, Mexico
| | - Rosa Moo-Puc
- Unidad de Investigación Médica Yucatán, Unidad Médica de Alta Especialidad, Centro Médico Nacional Ignacio García Téllez, Instituto Mexicano del Seguro Social, C 41 No. 439 x 32 y 34, Col. Industrial, 97150 Mérida, Yucatan, Mexico.
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Ren D, Wang Q, Yang Y, Hu Y, Song Y, He Y, Liu S, Wu L. Hypolipidemic effects of fucoidan fractions from Saccharina sculpera (Laminariales, Phaeophyceae). Int J Biol Macromol 2019; 140:188-195. [PMID: 31381913 DOI: 10.1016/j.ijbiomac.2019.08.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/11/2019] [Accepted: 08/01/2019] [Indexed: 12/13/2022]
Abstract
Fucoidan is a kind of brown algae-derived macromolecule suggested to have hypolipidemic activity. Saccharina sculpera has attracted interest because it is rich in fucoidan. The monosaccharide composition and structural characteristics of isolated fractions (F1, F2 and F3) were determined using high-performance liquid chromatography (HPLC), Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (NMR). The hypolipidemic effects of fucoidan fractions from Saccharina sculpera cultured in northern China were clarified by measuring cholesterol levels, antioxidative indicators and hepatic gene mRNA expression using an established hyperlipidemic Wistar rat model. The results showed that F1 is an acetylated galactofucan and that F2 consists of fucose, galactose, mannose and glucuronic acid. F3 is an acetylated galactofucan with high fucose. Fucoidan fractions from Saccharina sculpera could effectively reduce the level of lipids in serum by reducing the TG, TC, and LDL-C levels and increasing HDL-C levels and could effectively prevent lipid accumulation in the liver. The findings obtained from hepatic gene expression showed that fucoidan could inhibit cholesterol synthesis via downregulation of HMG-CoA-R and upregulation of LCAT, slow the synthesis of fatty acids via downregulation of SREBP-1c, and promote β-oxidation of fatty acids via upregulation of PPARα, PPARγ and LPL. These results demonstrated that the hypolipidemic activity of fucoidan was related to the inhibition of cholesterol synthesis and reverse transport, the regulation of fatty acid synthesis, and acceleration of mitochondrial β-oxidation.
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Affiliation(s)
- Dandan Ren
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China
| | - Qiukuan Wang
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China.
| | - Ying Yang
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China
| | - Yue Hu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China
| | - Yuefan Song
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China
| | - Yunhai He
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China
| | - Shu Liu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China
| | - Long Wu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China; National Research and Development Branch, Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China
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18
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Wang YQ, Wei JG, Tu MJ, Gu JG, Zhang W. Fucoidan Alleviates Acetaminophen-Induced Hepatotoxicity via Oxidative Stress Inhibition and Nrf2 Translocation. Int J Mol Sci 2018; 19:ijms19124050. [PMID: 30558169 PMCID: PMC6321350 DOI: 10.3390/ijms19124050] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/09/2018] [Accepted: 12/12/2018] [Indexed: 01/02/2023] Open
Abstract
Acetaminophen (APAP) is a widely used analgesic and antipyretic drug that leads to severe hepatotoxicity at excessive doses. Fucoidan, a sulfated polysaccharide derived from brown seaweeds, possesses a wide range of pharmacological properties. However, the impacts of fucoidan on APAP-induced liver injury have not been sufficiently addressed. In the present study, male Institute of Cancer Research (ICR) mice aged 6 weeks were subjected to a single APAP (500 mg/kg) intraperitoneal injection after 7 days of fucoidan (100 or 200 mg/kg/day) or bicyclol intragastric administration. The mice continued to be administered fucoidan or bicyclol once per day, and were sacrificed at an indicated time. The indexes evaluated included liver pathological changes, levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in the serum, levels of reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH) and catalase (CAT) in the liver, and related proteins levels (CYP2E1, pJNK and Bax). Furthermore, human hepatocyte HL-7702 cell line was used to elucidate the potential molecular mechanism of fucoidan. The mitochondrial membrane potential (MMP) and nuclear factor-erythroid 2-related factor (Nrf2) translocation in HL-7702 cells were determined. The results showed that fucoidan pretreatment reduced the levels of ALT, AST, ROS, and MDA, while it enhanced the levels of GSH, SOD, and CAT activities. Additionally, oxidative stress-induced phosphorylated c-Jun N-terminal protein kinase (JNK) and decreased MMP were attenuated by fucoidan. Although the nuclear Nrf2 was induced after APAP incubation, fucoidan further enhanced Nrf2 in cell nuclei and total expression of Nrf2. These results indicated that fucoidan ameliorated APAP hepatotoxicity, and the mechanism might be related to Nrf2-mediated oxidative stress.
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Affiliation(s)
- Yu-Qin Wang
- Department of Pharmacology, School of Pharmacy and Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong 226001, China.
| | - Jin-Ge Wei
- Department of Pharmacology, School of Pharmacy and Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong 226001, China.
| | - Meng-Jue Tu
- Department of Pharmacology, School of Pharmacy and Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong 226001, China.
| | - Jian-Guo Gu
- Department of Pharmacology, School of Pharmacy and Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong 226001, China.
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi 981-8558, Japan.
| | - Wei Zhang
- Department of Pharmacology, School of Pharmacy and Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong 226001, China.
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Peng Y, Wang Y, Wang Q, Luo X, He Y, Song Y. Hypolipidemic effects of sulfated fucoidan from Kjellmaniella crassifolia through modulating the cholesterol and aliphatic metabolic pathways. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.10.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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20
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Song Y, Wang Q, Wang Q, He Y, Ren D, Liu S, Wu L. Structural characterization and antitumor effects of fucoidans from brown algae Kjellmaniella crassifolia farmed in northern China. Int J Biol Macromol 2018; 119:125-133. [PMID: 30041037 DOI: 10.1016/j.ijbiomac.2018.07.126] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 12/20/2022]
Abstract
Brown alga-derived fucoidan has been proven to have a variety of bioactivities. To explore the antitumor effect of fucoidan, Kjellmaniella crassifolia (farmed in Dalian, China)was enzymatically digested to obtain the crude extract (F), which was further separated into three fractions (F1, F2 and F3). The monosaccharide composition and structural characteristics of the isolated fractions were determined using high-performance liquid chromatography (HPLC), Fourier-transform infrared spectroscopy (FTIR) and 1D and 2D nuclear magnetic resonance (NMR) spectroscopy. F1 is an acetylated galactofucan, and F2 consists of fucose, galactose, mannose and glucuronic acid. F3 has two components, an acetylated galactofucan and a pure sulfated fucan. F, F1 and F2 showed limited cytotoxicity against murine hepatocarcinoma Hca-F cells in vitro. Oral administration of F at a dose of 450 mg/kg d significantly inhibited lump growth in Hca-F-inoculated mice and led to upregulated FAS expression in tumor tissues compared to that of the control. F1 and F2 did not show competitive antineoplastic efficacy, as did the crude extract. Crude fucoidan could be a promising antitumor adjuvant. The origin of its efficacy may be the small molecules, such as phenols that attached to native fucoidan. This theory needs to be further confirmed.
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Affiliation(s)
- Yuefan Song
- National R & D Branch Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China
| | - Qiukuan Wang
- National R & D Branch Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China.
| | - Qingjun Wang
- National R & D Branch Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China
| | - Yunhai He
- National R & D Branch Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China
| | - Dandan Ren
- National R & D Branch Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China
| | - Shu Liu
- National R & D Branch Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China
| | - Long Wu
- National R & D Branch Center for Seaweed Processing, Dalian 116023, PR China; Key Laboratory of Aquatic Product Processing and Utilization of Liaoning Province, Dalian 116023, PR China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, PR China
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