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Tan K, Lu SY, Tan K, Ransangan J, Cai X, Cheong KL. Bioactivity of polysaccharides derived from bivalves. Int J Biol Macromol 2023; 250:126096. [PMID: 37541476 DOI: 10.1016/j.ijbiomac.2023.126096] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/09/2023] [Accepted: 07/22/2023] [Indexed: 08/06/2023]
Abstract
Bivalves have high diversity, widely distributed in various aquatic environments, including saltwater, brackish water and freshwater. Bivalves are known to rich in polysaccharides and have wide applications in functional foods, pharmaceuticals, and industrial research. Despite many relevant reports are available, the information is poorly organized. Therefore, in this study, we conducted a comprehensive scientific review on the potential bioactivity of polysaccharides derived from bivalves. In general, the polysaccharides derived from bivalves possess various bioactive properties, including anticancer, antioxidant, anticoagulant and immunomodulatory activities. The bioactivity of these biomolecules highly depends on the bivalve species, extraction methods, purification methods, dosages, etc. The information in this study can provide an overview of the bioactivities of bivalve polysaccharides. This is very useful to be used as a guide for identifying the health benefits of polysaccharides derived from different bivalve species.
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Affiliation(s)
- Karsoon Tan
- College of Marine Science, Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf Ocean Development Research Center, Beibu Gulf University, Qinzhou, Guangxi, China.
| | - Si-Yuan Lu
- Guangdong Province Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Guangdong, China
| | - Kianann Tan
- College of Marine Science, Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf Ocean Development Research Center, Beibu Gulf University, Qinzhou, Guangxi, China
| | - Julian Ransangan
- Borneo Marine Research Institute, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Xiaohui Cai
- College of Marine Science, Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf Ocean Development Research Center, Beibu Gulf University, Qinzhou, Guangxi, China
| | - Kit-Leong Cheong
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
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2
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The natural substances with anti-allergic properties in food allergy. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Guo G, Kong Y, Su J, Wang G, Zhang M, Wang S, Song Z. Immunomodulatory activity of aqueous extract from Crassostrea sikamea in the splenocytes of Sprague-Dawley rats. Food Sci Nutr 2022; 10:813-821. [PMID: 35282010 PMCID: PMC8907723 DOI: 10.1002/fsn3.2710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/27/2021] [Accepted: 12/17/2021] [Indexed: 11/13/2022] Open
Abstract
Crassostrea sikamea (C. sikamea) is used as an important edible and medicinal seafood in China. In the present study, an aqueous extract of C. sikamea (AECs) was prepared, and its immunomodulatory effects on rat splenocytes were studied. 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay revealed that AECs was able to promote splenocyte proliferation. Moreover, flow cytometry revealed that AECs treatment markedly altered the populations of splenic lymphocyte subtypes. Data from real-time quantitative PCR (RT-qPCR) and enzyme-linked immunosorbent assay (ELISA) showed that AECs promoted the mRNA expression and secretion of TNF-α, IL-2, IL-6, IL-12, and IFN-γ. Mechanistically, p38 MAPK phosphorylation in splenocytes was significantly upregulated under AECs treatment and p38 MAPK inhibitor reversed the promoting effect of AECs on the expression of inflammatory cytokines. Collectively, our novel evidence suggests that AECs exhibits immunomodulatory activity in vitro, supporting the further application of C. sikamea as a potential functional food.
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Affiliation(s)
- Guannan Guo
- National Engineering Laboratory for Druggable Gene and Protein ScreeningSchool of Life SciencesNortheast Normal UniversityChangchunChina
| | - Ying Kong
- NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine ProductsNortheast Normal UniversityChangchunChina
| | - Jie Su
- NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine ProductsNortheast Normal UniversityChangchunChina
| | - Geng Wang
- National Engineering Laboratory for Druggable Gene and Protein ScreeningSchool of Life SciencesNortheast Normal UniversityChangchunChina
| | - Muqing Zhang
- School of Molecular & Cellular BiologyUniversity of Illinois Urbana ChampaignUrbanaIllinoisUSA
| | - Shuyue Wang
- National Engineering Laboratory for Druggable Gene and Protein ScreeningSchool of Life SciencesNortheast Normal UniversityChangchunChina
- NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine ProductsNortheast Normal UniversityChangchunChina
| | - Zhenbo Song
- NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine ProductsNortheast Normal UniversityChangchunChina
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4
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Kong Y, Wang LH, Liu L, Zheng LH, Bao YL, Liu XX, Wang SY, Song ZB. Immunomodulatory effects of flazin from Crassostrea sikamea on splenic lymphocytes of Sprague-Dawley rats. Chin J Nat Med 2021; 19:836-843. [PMID: 34844722 DOI: 10.1016/s1875-5364(21)60119-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Indexed: 12/13/2022]
Abstract
Crassostrea sikamea (C.sikamea) is an important edible and medicinal seafood in China. In the present study, a compound named flazin was separated and identified from the ethyl acetate extract of C.sikamea (EAECs) for the first time. In addition, the 3-(4, 5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetra zolium (MTS) assay revealed that EAECs and flazin inhibited the transformation of splenic lymphocytes in vitro. Moreover, flazin (20 μg·mL-1) altered the populations of splenic lymphocyte subtypes. Real-time quantitative PCR (RT-qPCR) analysis and enzyme-linked immunosorbent assay (ELISA) showed that flazin suppressed the mRNA expression and secretion of TNF-α and IL-2, and reversed Concanavalin A (ConA)-induced mRNA up-regulation and protein secretion of TNF-α and IL-2. Western blot results showed that flazin reversed ConA-induced increases in p-ERK1/2 and p-p38 in splenocytes. In conclusion, flazin exhibits effective immunomodulatory function and may be useful for treating immune-related disorders, which indicates the application potential of C.sikamea as a functional food or immunomodulator.
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Affiliation(s)
- Ying Kong
- National Engineering Laboratory for Druggable Gene and Protein Screening, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Li-Hua Wang
- National Engineering Laboratory for Druggable Gene and Protein Screening, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Lei Liu
- NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine Products, Northeast Normal University, Changchun 130117, China
| | - Li-Hua Zheng
- National Engineering Laboratory for Druggable Gene and Protein Screening, School of Life Sciences, Northeast Normal University, Changchun 130024, China; NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine Products, Northeast Normal University, Changchun 130117, China
| | - Yong-Li Bao
- National Engineering Laboratory for Druggable Gene and Protein Screening, School of Life Sciences, Northeast Normal University, Changchun 130024, China; NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine Products, Northeast Normal University, Changchun 130117, China
| | - Xiu-Xian Liu
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shu-Yue Wang
- National Engineering Laboratory for Druggable Gene and Protein Screening, School of Life Sciences, Northeast Normal University, Changchun 130024, China; NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine Products, Northeast Normal University, Changchun 130117, China.
| | - Zhen-Bo Song
- National Engineering Laboratory for Druggable Gene and Protein Screening, School of Life Sciences, Northeast Normal University, Changchun 130024, China; NMPA Key Laboratory for Quality Control of Cell and Gene Therapy Medicine Products, Northeast Normal University, Changchun 130117, China.
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5
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Lu W, Zhang M, Zhang T, Wang Q, Wang J, Song G, Wang H, Feng J, Shen Q. Impact of air-frying on the plasmalogens deterioration and oxidation in oyster revealed by mild acid hydrolysis and HILIC-MS-based lipidomics analysis. Electrophoresis 2021; 42:1552-1559. [PMID: 34128241 DOI: 10.1002/elps.202100106] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 12/23/2022]
Abstract
Oyster is rich in plasmalogens that are ether phospholipids with biological functions to human body. Air-frying is a popular technique for preparing delicious oyster but makes the plasmalogens vulnerable to oxidation. In this study, the effect of air-frying processing on plasmalogens oxidation was studied by lipidomic approach. Plasmalogens were always mixed with normal phospholipids, thus the lipid extract was treated with mild acid hydrolysis to rapidly degrade plasmalogens owing to the acid lability of vinyl ether linkage at sn-1 position. After hydrophilic interaction chromatography MS/MS analysis, there were three plasmalogen classes, plasmanylcholine, plasmanylethanolamine, and plasmanylinositol, completely separated, and each plasmalogen molecular species was identified and quantified. It indicated that the content of plasmalogens underwent an obvious decrease during the air-frying process. To weaken such effect, the influence of air-frying temperature was further inspected by multivariate statistical analyses. The main variables, including the ions of m/z 756.4927, 784.5486, 828.5812, etc., were revealed by unsupervised principle component analysis, supervised orthogonal partial least-square analysis, and variable importance in projection plot. As a conclusion, air-frying has health benefits in reducing fat content but destructive to plasmalogens, thus interventions are recommended to prevent the degradation of plasmalogens.
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Affiliation(s)
- Weibo Lu
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, P. R. China
| | - Min Zhang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, P. R. China
| | - Ting Zhang
- Consumer Testing Technology, Shenzhen, P. R. China
| | - Qingchen Wang
- Consumer Testing Technology, Shenzhen, P. R. China.,Department of Cardiology, Hangzhou Yuhang Hospital of Traditional Chinese Medicine, Yuhang, P. R. China
| | - Jie Wang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, P. R. China
| | - Gongshuai Song
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, P. R. China
| | - Honghai Wang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, P. R. China
| | - Junli Feng
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, P. R. China
| | - Qing Shen
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, P. R. China
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6
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Pratap K, Taki AC, Johnston EB, Lopata AL, Kamath SD. A Comprehensive Review on Natural Bioactive Compounds and Probiotics as Potential Therapeutics in Food Allergy Treatment. Front Immunol 2020; 11:996. [PMID: 32670266 PMCID: PMC7326084 DOI: 10.3389/fimmu.2020.00996] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/27/2020] [Indexed: 12/13/2022] Open
Abstract
Food allergy is rising at an alarming rate and is a major public health concern. Globally, food allergy affects over 500 million people, often starting in early childhood and increasingly reported in adults. Commercially, only one approved oral immunotherapy-based treatment is currently available and other allergen-based immunotherapeutic are being investigated in clinical studies. As an alternative approach, a substantial amount of research has been conducted on natural compounds and probiotics, focusing on the immune modes of action, and therapeutic uses of such sources to tackle various immune-related diseases. Food allergy is primarily mediated by IgE antibodies and the suppression of allergic symptoms seems to be mostly modulated through a reduction of allergen-specific IgE antibodies, upregulation of blocking IgG, and downregulation of effector cell activation (e.g., mast cells) or expression of T-helper 2 (Th-2) cytokines. A wide variety of investigations conducted in small animal models or cell-based systems have reported on the efficacy of natural bioactive compounds and probiotics as potential anti-allergic therapeutics. However, very few lead compounds, unlike anti-cancer and anti-microbial applications, have been selected for clinical trials in the treatment of food allergies. Natural products or probiotic-based approaches appear to reduce the symptoms and/or target specific pathways independent of the implicated food allergen. This broad range therapeutic approach essentially provides a major advantage as several different types of food allergens can be targeted with one approach and potentially associated with a lower cost of development. This review provides a brief overview of the immune mechanisms underlying food allergy and allergen-specific immunotherapy, followed by a comprehensive collection of current studies conducted to investigate the therapeutic applications of natural compounds and probiotics, including discussions of their mode of action and immunological aspects of their disease-modifying capabilities.
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Affiliation(s)
- Kunal Pratap
- Molecular Allergy Research Laboratory, Discipline of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia.,Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Center for Molecular Therapeutics, James Cook University, Townsville, QLD, Australia
| | - Aya C Taki
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Elecia B Johnston
- Molecular Allergy Research Laboratory, Discipline of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia.,Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Center for Molecular Therapeutics, James Cook University, Townsville, QLD, Australia
| | - Andreas L Lopata
- Molecular Allergy Research Laboratory, Discipline of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia.,Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Center for Molecular Therapeutics, James Cook University, Townsville, QLD, Australia
| | - Sandip D Kamath
- Molecular Allergy Research Laboratory, Discipline of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia.,Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Center for Molecular Therapeutics, James Cook University, Townsville, QLD, Australia
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7
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Li W, Xu C, Zhang C, Cao W, Qin X, Gao J, Zheng H. The purification and identification of immunoregulatory peptides from oyster (Crassostrea hongkongensis) enzymatic hydrolysate. RSC Adv 2019; 9:32854-32863. [PMID: 35529727 PMCID: PMC9073163 DOI: 10.1039/c9ra04255e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/06/2019] [Indexed: 11/21/2022] Open
Abstract
The identification of two peptides with immunoregulatory activity from oysters was performed.
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Affiliation(s)
- Wan Li
- College of Food Science and Technology
- Guangdong Ocean University
- Zhanjiang 524088
- China
- Shenzhen Institute of Guangdong Ocean University
| | - Cheng Xu
- College of Food Science and Technology
- Guangdong Ocean University
- Zhanjiang 524088
- China
- Shenzhen Institute of Guangdong Ocean University
| | - Chaohua Zhang
- College of Food Science and Technology
- Guangdong Ocean University
- Zhanjiang 524088
- China
- National Research and Development Branch Center for Shellfish Processing
| | - Wenhong Cao
- College of Food Science and Technology
- Guangdong Ocean University
- Zhanjiang 524088
- China
- National Research and Development Branch Center for Shellfish Processing
| | - Xiaoming Qin
- College of Food Science and Technology
- Guangdong Ocean University
- Zhanjiang 524088
- China
- National Research and Development Branch Center for Shellfish Processing
| | - Jialong Gao
- College of Food Science and Technology
- Guangdong Ocean University
- Zhanjiang 524088
- China
- National Research and Development Branch Center for Shellfish Processing
| | - Huina Zheng
- College of Food Science and Technology
- Guangdong Ocean University
- Zhanjiang 524088
- China
- National Research and Development Branch Center for Shellfish Processing
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8
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Lee HJ, Saravana PS, Cho YN, Haq M, Chun BS. Extraction of bioactive compounds from oyster (Crassostrea gigas) by pressurized hot water extraction. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2018.01.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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9
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Song Z, Hu Y, Qi L, Xu T, Yang Y, Xu Z, Lai X, Wang X, Zhang D, Li S. An effective and recyclable deproteinization method for polysaccharide from oyster by magnetic chitosan microspheres. Carbohydr Polym 2018; 195:558-565. [DOI: 10.1016/j.carbpol.2018.04.108] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 04/23/2018] [Accepted: 04/27/2018] [Indexed: 01/14/2023]
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10
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Cheong KL, Xia LX, Liu Y. Isolation and Characterization of Polysaccharides from Oysters (Crassostrea gigas) with Anti-Tumor Activities Using an Aqueous Two-Phase System. Mar Drugs 2017; 15:md15110338. [PMID: 29104211 PMCID: PMC5706028 DOI: 10.3390/md15110338] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 10/24/2017] [Accepted: 10/25/2017] [Indexed: 01/08/2023] Open
Abstract
In this study, a simple aqueous two-phase system (ATPS) was employed for concurrent purification of oyster polysaccharides. The chemical structure and anti-tumor activities of purified oyster polysaccharides (OP-1) were also investigated. Under optimal ATPS conditions, oyster polysaccharides can be partitioned in the bottom phase with 67.02% extraction efficiency. The molecular weight of OP-1 was determined as 3480 Da. OP-1 is a (1→4)-α-d-glucosyl backbone and branching points located at O-3 of glucose with a terminal-d-Glcp. The anti-tumor activity assay showed that OP-1 exhibited good activities, including promotion of splenocyte proliferation, IL-2 release, and inhibition of HepG2 cell proliferation. Additionally, OP-1 had no in vivo toxicity. This finding suggests that ATPS is a much simpler and greener system, and it opens up new possibilities in the large-scale separation of active polysaccharides from oysters. OP-1 could be used by the health food and pharmaceutical therapies as potential anti-cancer adjuvants.
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Affiliation(s)
- Kit-Leong Cheong
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Shantou 515063, Guangdong, China.
| | - Li-Xuan Xia
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Shantou 515063, Guangdong, China.
| | - Yang Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Shantou 515063, Guangdong, China.
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Zhong M, Zhong C, Wang T, Hu P, Wang G, Ren R, Zhang J, Gao H, Cui W, Duan W, Che J. Activation of dendritic cells by low molecular weight oyster polysaccharides. Int Immunopharmacol 2017; 44:183-190. [DOI: 10.1016/j.intimp.2017.01.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 12/27/2016] [Accepted: 01/10/2017] [Indexed: 10/20/2022]
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12
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Sakaguchi K, Zhong M, Kawai S, Shimizu Y, Gohda E. Augmentation of Cytolytic Activity in Murine Natural Killer Cells and Inhibition of Tumor Growth by the Ethanol Fraction of Oyster Extract. Integr Cancer Ther 2016; 17:31-40. [PMID: 27923904 PMCID: PMC5950937 DOI: 10.1177/1534735416681640] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
A reduced number and/or reduced activity of natural killer (NK) cells, which are
important for defense against a variety of cancers and viral infections, occur
under various stress conditions and in patients with various diseases. In this
article, we report that the 30% to 50% ethanol precipitate of oyster extract
(EPOE50) dose-dependently enhanced the activity of mouse spleen NK cells in
vitro and in vivo. The activity of EPOE50 was eluted with a molecular weight of
about 2000 by gel filtration and was inactivated by periodate but not by
proteinase K. The activity of highly purified NK cells was also augmented by
EPOE50 but not by oligodeoxyribonucleotide 1585, which mimics bacterial DNA.
Administration of EPOE50 to mice stimulated splenic NK cell activity without a
change in splenic NK cell populations. Although the proliferation of B16 tumor
cells in vitro was slightly stimulated by EPOE50, the growth of B16 melanoma in
vivo was dose-dependently suppressed by administration of EPOE50. Taken
together, our results indicate that EPOE50 augmented NK cell activity and that
its administration to mice inhibited tumor growth presumably through the
activation of NK cells and also suggest that the active substance is a
sugar-containing oligomer or polymer and is not of bacterial origin.
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Affiliation(s)
| | - Ming Zhong
- 1 Okayama University, Okayama, Japan.,2 Bizen Chemical Co, Ltd, Akaiwa City, Okayama, Japan.,3 Jining Medical College, Rizhao, China
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Yin G, Huang J, Ma M, Suo X, Huang Z. Oyster crude polysaccharides attenuates lipopolysaccharide-induced cytokines production and PPARγ expression in weanling piglets. SPRINGERPLUS 2016; 5:677. [PMID: 27350914 PMCID: PMC4899395 DOI: 10.1186/s40064-016-2319-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 05/10/2016] [Indexed: 11/21/2022]
Abstract
This study evaluated whether oyster crude polysaccharides (OPS) attenuates lipopolysaccharide (LPS)-induced immune stress in weanling piglets. Thirty healthy crossbred piglets (28 ± 1 days old) were randomly divided into five groups (6 piglets/group). Blank control and LPS groups were fed with the basal diet, while low, medium and high dose of OPS groups were fed with the basal diet supplemented with 0.5, 0.8 and 1.2 % OPS, respectively, for 30 days. LPS group, as well as low, medium and high dose of OPS groups were then injected intraperitoneally with LPS (100 μg/kg body weight), whereas the blank control group was given phosphate buffered saline. The concentrations of TNF-α, IL-1β and IL-6 in plasma were detected by ELISA. The mRNA levels of PPARγ in liver, spleen, adrenal gland and thymus were evaluated by quantitative real-time PCR. The results showed that compared with the blank control, LPS treatment significantly increased plasma IL-1β, IL-6 and TNF-α levels, which was significantly attenuated by supplementing 0.5, 0.8 or 1.2 % OPS in the diet. In addition, LPS significantly induced expression of PPARγ mRNA in liver, spleen, adrenal gland, and thymus, which was blocked by adding OPS regardless of the doses. These results indicate that dietary supplementation of OPS was able to alleviate the immune stress induced by LPS.
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Affiliation(s)
- Guangwen Yin
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
| | - Juhui Huang
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
| | - Maotao Ma
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
| | - Xun Suo
- National Animal Protozoa Laboratory and College of Veterinary Medicine, China Agricultural University, Beijing, 100193 China
| | - Zhijian Huang
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
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14
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Zhang X, Zhang L, Zhang H, Cai Z, Wang P. Optimization Extraction ofCrassostrea gigasPolysaccharides and its Antioxidant Activity and Hepatoprotective Against BCG-LPS-Induced Hepatic Injury in Mice. J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.12724] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaokui Zhang
- Department of Biotechnology; Marine College, Shandong University (Weihai); Weihai People's Republic of China
| | - Li Zhang
- Department of Pharmaceutics; Marine College, Shandong University (Weihai); Weihai People's Republic of China
| | - Hanyu Zhang
- Department of Pharmaceutics; Marine College, Shandong University (Weihai); Weihai People's Republic of China
| | - Zhaoyang Cai
- Department of Pharmaceutics; Marine College, Shandong University (Weihai); Weihai People's Republic of China
| | - Ping Wang
- Department of Pharmaceutics; Marine College, Shandong University (Weihai); Weihai People's Republic of China
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15
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Cheng CH, Wu HY, Wu CF, Jan TR. Pacific oyster-derived polysaccharides attenuate allergen-induced intestinal inflammation in a murine model of food allergy. J Food Drug Anal 2016; 24:121-128. [PMID: 28911394 PMCID: PMC9345417 DOI: 10.1016/j.jfda.2015.08.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 07/30/2015] [Accepted: 08/24/2015] [Indexed: 10/29/2022] Open
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16
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Li S, Zhang D, Wu J, Li X, Zhang J, Wan M, Lai X. Purification, preliminary characterization and bioactivities of polysaccharides from Ostrea rivularis Gould. Int J Biol Macromol 2015; 80:16-22. [DOI: 10.1016/j.ijbiomac.2015.06.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/02/2015] [Accepted: 06/14/2015] [Indexed: 12/01/2022]
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Yin G, Li W, Lin Q, Lin X, Lin J, Zhu Q, Jiang H, Huang Z. Dietary administration of laminarin improves the growth performance and immune responses in Epinephelus coioides. FISH & SHELLFISH IMMUNOLOGY 2014; 41:402-406. [PMID: 25266890 DOI: 10.1016/j.fsi.2014.09.027] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 09/09/2014] [Accepted: 09/20/2014] [Indexed: 06/03/2023]
Abstract
This study was conducted to evaluate the effects of laminarin on the growth performance, immunological and biochemical parameters, as well as immune related genes expression in the grouper, Epinephelus coioides. One hundred and eight fish were randomly divided into four groups (45 groupers/group). Blank control group was fed with the basal diet, while low, medium and high doses of laminarin groups were fed with the basal diet supplemented with 0.5%, 1.0%, and 1.5% laminarin, respectively, for 48 days. The immunological and biochemical parameters in blood were investigated. The mRNA levels of IL-1β, IL-8, and TLR2 in midgut were also evaluated by quantitative real-time PCR. Dietary laminarin supplementation significantly improved the specific growth rate and the feed efficiency ratio of the fish. The level of TP and the activity of LZM, CAT and SOD were higher than that of the control. The levels of UREA and CREA as well as the activity of ALP were lower than of the control. There was no significant difference in the levels of ALT and AST between control groups and treated groups. In addition, dietary laminarin supplementation decreased the levels of C3 and C4. The expression of immune response genes IL-1β, IL-8, and TLR2 showed significant increases (P < 0.05) in groupers fed low dose (0.5%) and medium dose (1.0%) of laminarin compared with the blank control. These results suggest that laminarin modulates the immune response and stimulates growth of the fish.
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Affiliation(s)
- Guangwen Yin
- Engineering Laboratory of Animal Pharmaceuticals, College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, PR China
| | - Wenwu Li
- Engineering Laboratory of Animal Pharmaceuticals, College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, PR China
| | - Qian Lin
- Engineering Laboratory of Animal Pharmaceuticals, College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, PR China
| | - Xi Lin
- Engineering Laboratory of Animal Pharmaceuticals, College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, PR China
| | - Jianbin Lin
- Fujian Provincial Institute of Freshwater Fisheries, Fuzhou, Fujian Province 350002, PR China
| | - Qingguo Zhu
- Fujian Provincial Institute of Freshwater Fisheries, Fuzhou, Fujian Province 350002, PR China
| | - Heji Jiang
- Engineering Laboratory of Animal Pharmaceuticals, College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, PR China
| | - Zhijian Huang
- Engineering Laboratory of Animal Pharmaceuticals, College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, PR China.
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Zhang L, Liu Y, Tian X, Tian Z. Antimicrobial Capacity and Antioxidant Activity of Enzymatic Hydrolysates of Protein from Rushan Bay Oyster (C
rassostrea gigas
). J FOOD PROCESS PRES 2014. [DOI: 10.1111/jfpp.12245] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Li Zhang
- Pharmaceutics; Marine College; Shandong University (Weihai); Weihai 264209 China
| | - Yezhou Liu
- Pharmaceutics; Marine College; Shandong University (Weihai); Weihai 264209 China
| | - Xin Tian
- Pharmaceutics; Marine College; Shandong University (Weihai); Weihai 264209 China
| | - Zhenhua Tian
- Pharmaceutics; Marine College; Shandong University (Weihai); Weihai 264209 China
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Inhibitory effects of polysaccharide-rich extract of Phragmites rhizoma on atopic dermatitis-like skin lesions in NC/Nga mice. Life Sci 2013; 92:866-72. [PMID: 23517777 DOI: 10.1016/j.lfs.2013.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 02/16/2013] [Accepted: 03/04/2013] [Indexed: 11/20/2022]
Abstract
AIMS Phragmites rhizoma was reported to have anti-oxidative and free radical scavenging activity. It also has been traditionally used to suppress inflammation. In the present study, we aimed to evaluate the topical effects of the polysaccharide-rich extract of P. rhizoma (PEP) on atopic dermatitis. MAIN METHODS We induced AD-like skin lesions by an extract of the house-dust mite Dermatophagoides farinae (Dfb) in NC/Nga mice, and then performed macroscopic analysis, immunohistochemical staining and measurement of total serum IgE and cytokine production by ELISA. KEY FINDINGS Topically applied PEP suppressed dermatitis with a decrease in dermatitis score and scratch number. The histological manifestations of atopic skin lesions including thickened epidermis and increased numbers of mast cells, polymorphonuclear leukocytes and nerve fibers were significantly attenuated. The activation of IgE and the levels of cytokines such as IFN-γ IL-4 and IL-10 were also decreased. SIGNIFICANCE Our results indicated that PEP might have an inhibitory effect on atopic dermatitis-like lesion and be a promising natural resource in the treatment of atopic dermatitis.
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