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Okimura T, Jiang Z, Komatsubara H, Hirasaka K, Oda T. Therapeutic effects of an orally administered edible seaweed-derived polysaccharide preparation, ascophyllan HS, on a Streptococcus pneumoniae infection mouse model. Int J Biol Macromol 2020; 154:1116-1122. [PMID: 31712141 DOI: 10.1016/j.ijbiomac.2019.11.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/19/2019] [Accepted: 11/07/2019] [Indexed: 12/19/2022]
Abstract
Ascophyllan HS is a commercially available preparation of the edible brown alga Ascophyllum nodosum containing ascophyllan, a sulfated polysaccharide with diverse beneficial biological activities. In this study, the effects of ascophyllan HS were evaluated in a severe intranasal Streptococcus pneumoniae infection mouse model. The control untreated mice started to die on day 7 and 80% had died by day 14 post-infection. Continuous oral administration of ascophyllan HS before and after bacterial infection resulted in a remarkable increase in survival rate, with 90% of the low (167 mg/kg body weight/day) and 100% of the high (500 mg/kg body weight/day) dose ascophyllan HS-treated mice surviving at day 14 post-infection. Histopathological observation of the lungs of the infected mice revealed the induction of typical pneumonia features in the alveolar spaces of the untreated control mice, such as extensive infiltration of inflammatory cells, edema, and fibrin deposition. In contrast, notable levels of lung injuries or alterations were not observed in the ascophyllan HS-treated mice, and only a minor lesion was observed in one mouse. Furthermore, bacterial burdens in the lungs were significantly reduced in the ascophyllan HS-treated mice as compared to the control mice at day 4 post-infection. Significantly higher levels of IL-12 were detected in the serum of ascophyllan HS-treated mice than that of control mice measured at the end of the infection experiment (day 14). These results suggest that orally administered ascophyllan HS exerts a therapeutic effect on S. pneumoniae infection by activating the host defense systems. This is the first report of the therapeutic effect of an orally administered seaweed polysaccharide preparation on S. pneumoniae infection. Our findings suggest that ascophyllan HS has the potential to be developed as nutraceuticals and pharmaceuticals applicable for humans as well as a safe and promising therapeutic agent against S. pneumoniae infection.
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Affiliation(s)
- Takasi Okimura
- Research and Development Division, Hayashikane Sangyo Co., Ltd., Shimonoseki, Yamaguchi 750-8608, Japan
| | - Zedong Jiang
- College of Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, China
| | | | - Katsuya Hirasaka
- Organization for Marine Science and Technology, Nagasaki University, Nagasaki 852-8521, Japan
| | - Tatsuya Oda
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University, Nagasaki 852-8521, Japan.
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Hwang PA, Lin HTV, Lin HY, Lo SK. Dietary Supplementation with Low-Molecular-Weight Fucoidan Enhances Innate and Adaptive Immune Responses and Protects against Mycoplasma pneumoniae Antigen Stimulation. Mar Drugs 2019; 17:E175. [PMID: 30889882 PMCID: PMC6471482 DOI: 10.3390/md17030175] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/14/2019] [Accepted: 03/14/2019] [Indexed: 12/18/2022] Open
Abstract
In this study, the low-molecular-weight (LMW) fucoidan, rich in fucose and sulfate, was extracted and purified from the edible brown seaweed, Laminaria japonica. In this study, we orally administered LMW fucoidan to mice for 6 weeks. We then examined fucoidan's effects on innate immunity, adaptive immunity, and Mycoplasma pneumoniae (MP)-antigen-stimulated immune responses. Our data showed that LMW fucoidan stimulated the innate immune system by increasing splenocyte proliferation, natural killer (NK) cell activity, and phagocytic activity. LMW fucoidan also increased interleukin (IL)-2, IL-4, and interferon (IFN)-γ secretion by splenocytes and immunoglobulin (Ig)-G and IgA content in serum, which help regulate adaptive immune cell functions, and decreased allergen-specific IgE. In MP-antigen-stimulated immune responses, the IgM and IgG content in the serum were significantly higher in the LMW fucoidan group after MP-antigen stimulation. Our study provides further information about the immunomodulatory effects of LMW fucoidan and highlights a potential role in preventing M. pneumoniae infection.
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Affiliation(s)
- Pai-An Hwang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, No. 2, Beining Road, Keelung 20246, Taiwan.
| | - Hong-Ting Victor Lin
- Department of Food Science, National Taiwan Ocean University, Keelung 20246, Taiwan.
| | - Hsin-Yuan Lin
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, No. 2, Beining Road, Keelung 20246, Taiwan.
| | - Szu-Kuan Lo
- Gi-Kang Clinic, No. 155, Yanping Rd., Zhongli Dist., Taoyuan 32043, Taiwan.
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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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Desamero MJ, Kakuta S, Chambers JK, Uchida K, Hachimura S, Takamoto M, Nakayama J, Nakayama H, Kyuwa S. Orally administered brown seaweed-derived β-glucan effectively restrained development of gastric dysplasia in A4gnt KO mice that spontaneously develop gastric adenocarcinoma. Int Immunopharmacol 2018; 60:211-220. [PMID: 29763881 DOI: 10.1016/j.intimp.2018.05.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/22/2018] [Accepted: 05/06/2018] [Indexed: 02/06/2023]
Abstract
β-Glucan refers to a heterogeneous group of chemically defined storage polysaccharides containing β-(1,3)-d-linked glucose polymers with branches connected by either β-(1,4) or β-(1,6) glycosidic linkage. To date, an extensive amount of scientific evidence supports their multifunctional biological activities, but their potential involvement in the progression of premalignant lesions remains to be clarified. A4gnt KO mice that lack α1,4-N-acetylglucosamine-capped O-glycans in gastric gland mucin are a unique animal model for gastric cancer because the mutant mice spontaneously develop gastric cancer through hyperplasia-dysplasia-adenocarcinoma sequence. In particular, A4gnt KO mice show gastric dysplasia during 10-20 weeks of age. Here we investigated the putative gastro-protective activity of brown seaweed-derived β-glucan (Laminaran) against development of gastric dysplasia, precancerous lesion for gastric cancer in A4gnt KO mice. The mutant mice at 12 weeks of age were randomly assigned into three treatment groups namely, wildtype control + distilled water (normal control), A4gnt KO mice + distilled water (untreated control), and A4gnt KO mice + 100 mg/kg Laminaran. After 3 weeks, the stomach was removed and examined for morphology and gene expression patterns. In contrast to the untreated control group, administration of Laminaran substantially attenuated gastric dysplasia development and counterbalanced the increased induction in cell proliferation and angiogenesis. Furthermore, Laminaran treatment effectively overcame the A4gnt KO-induced alteration in the gene expression profile of selected cytokines as revealed by real-time PCR analysis. Collectively, our present findings indicate that β-glucan can potentially restrain the development of gastric dysplasia to mediate their tissue-preserving activity.
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Affiliation(s)
- Mark Joseph Desamero
- Laboratory of Biomedical Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; Department of Basic Veterinary Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, Laguna 4031, Philippines
| | - Shigeru Kakuta
- Laboratory of Biomedical Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - James Kenn Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Masaya Takamoto
- Department of Infection and Host Defense, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Jun Nakayama
- Department of Molecular Pathology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Hiroyuki Nakayama
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Shigeru Kyuwa
- Laboratory of Biomedical Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Adachi T, Kakuta S, Aihara Y, Kamiya T, Watanabe Y, Osakabe N, Hazato N, Miyawaki A, Yoshikawa S, Usami T, Karasuyama H, Kimoto-Nira H, Hirayama K, Tsuji NM. Visualization of Probiotic-Mediated Ca 2+ Signaling in Intestinal Epithelial Cells In Vivo. Front Immunol 2016; 7:601. [PMID: 28018362 PMCID: PMC5159486 DOI: 10.3389/fimmu.2016.00601] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 11/30/2016] [Indexed: 01/28/2023] Open
Abstract
Probiotics, such as lactic acid bacteria (LAB) and Bacillus subtilis var. natto, have been shown to modulate immune responses. It is important to understand how probiotic bacteria impact intestinal epithelial cells (IECs), because IECs are the first line of defense at the mucosal surface barrier and their activities substantially affect the gut microenvironment and immunity. However, to date, their precise mechanism remains unknown due to a lack of analytical systems available for live animal models. Recently, we generated a conditional Ca2+ biosensor Yellow Cameleon (YC3.60) transgenic mouse line and established 5D (x, y, z, time, and Ca2+) intravital imaging systems of lymphoid tissues including those in Peyer’s patches and bone marrow. In the present study, we further advance our intravital imaging system for intestinal tracts to visualize IEC responses against orally administrated food compounds in real time. Using this system, heat-killed B. subtilis natto, a probiotic TTCC012 strain, is shown to directly induce Ca2+ signaling in IECs in mice housed under specific pathogen-free conditions. In contrast, this activation is not observed in the Lactococcus lactis strain C60; however, when we generate germ-free YC3.60 mice and observe the LAB stimulation of IECs in the absence of gut microbiota, C60 is capable of inducing Ca2+ signaling. This is the first study to successfully visualize the direct effect of probiotics on IECs in live animals. These data strongly suggest that probiotic strains stimulate IECs under physiological conditions and that their activity is affected by the microenvironment of the small intestine, such as commensal bacteria.
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Affiliation(s)
- Takahiro Adachi
- Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University , Tokyo , Japan
| | - Shigeru Kakuta
- Department of Biomedical Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo , Tokyo , Japan
| | - Yoshiko Aihara
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University , Kobe , Japan
| | - Tomonori Kamiya
- Biomedical Research Institute, National Institute for Advanced Industrial Science and Technology (AIST) , Tsukuba , Japan
| | - Yohei Watanabe
- Biomedical Research Institute, National Institute for Advanced Industrial Science and Technology (AIST) , Tsukuba , Japan
| | - Naomi Osakabe
- Department of Bio-science and Engineering, Shibaura Institute of Technology , Saitama , Japan
| | - Naoki Hazato
- Department of Bio-science and Engineering, Shibaura Institute of Technology , Saitama , Japan
| | - Atsushi Miyawaki
- Laboratory for Cell Function and Dynamics, Advanced Technology Development Group, Brain Science Institute, RIKEN , Saitama , Japan
| | - Soichiro Yoshikawa
- Department of Immune Regulation, Tokyo Medical and Dental University , Tokyo , Japan
| | - Takako Usami
- Laboratory of Recombinant Animals, Medical Research Institute, Tokyo Medical and Dental University , Tokyo , Japan
| | - Hajime Karasuyama
- Department of Immune Regulation, Tokyo Medical and Dental University , Tokyo , Japan
| | - Hiromi Kimoto-Nira
- NARO Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Tsukuba , Ibaraki , Japan
| | - Kazuhiro Hirayama
- Laboratory of Veterinary Public Health, Graduate School of Agricultural and Life Sciences, The University of Tokyo , Tokyo , Japan
| | - Noriko M Tsuji
- Biomedical Research Institute, National Institute for Advanced Industrial Science and Technology (AIST) , Tsukuba , Japan
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6
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Zhang L, Wang X, Liu T, Wang G, Chi S, Liu C, Wang H. Complete mitochondrial genome of Kjellmaniella crassifolia (Laminariaceae, Phaeophyceae): Laminaria and Saccharina are distinct genus. Mitochondrial DNA A DNA Mapp Seq Anal 2016; 27:4592-4594. [PMID: 27159726 DOI: 10.3109/19401736.2015.1060427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 05/18/2015] [Accepted: 06/06/2015] [Indexed: 11/13/2022]
Abstract
The kelp Kjellmaniella crassifolia is one of the most important economic resources, which is widely distributed in Japan and has now been introduced to coastal areas in China's Shandong Province for cultivation. In this study, we present the complete mitochondrial genome of K. crassifolia. The genome is characterized as a circular molecule of 37,627 bp in length with an overall A + T content of 64.81%. The mitogenome contains three ribosomal RNA genes (rRNA), 24 transfer RNA genes (tRNA), 35 protein-coding genes, and three conserved open reading frames (ORFs). Most genes are encoded on the H-strand and 11 pairs of overlapping genes are identified with the overlap size from 1 to 16 bp. The gene content and organization of mitogenome for K. crassifolia is identical to those for Saccharina, Laminaria, Undaria, and Costaria. Phylogenetic analysis based on 35 mitochondrial protein-coding genes clearly proves that Laminaria and Saccharina are distinct genus identified by Kjellmaniella. The present study provides new molecular data for further studies on evolutionary relationship within Phaeophyceae.
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Affiliation(s)
- Lei Zhang
- a Laboratory of Genetics and Breeding of Marine Organism , College of Marine Life Sciences, Ocean University of China , Qingdao , PR China and
| | - Xumin Wang
- b Beijing Institute of Genomics, Chinese Academy of Sciences , Beijing , PR China
| | - Tao Liu
- a Laboratory of Genetics and Breeding of Marine Organism , College of Marine Life Sciences, Ocean University of China , Qingdao , PR China and
| | - Guoliang Wang
- b Beijing Institute of Genomics, Chinese Academy of Sciences , Beijing , PR China
| | - Shan Chi
- a Laboratory of Genetics and Breeding of Marine Organism , College of Marine Life Sciences, Ocean University of China , Qingdao , PR China and
| | - Cui Liu
- a Laboratory of Genetics and Breeding of Marine Organism , College of Marine Life Sciences, Ocean University of China , Qingdao , PR China and
| | - Haiyang Wang
- a Laboratory of Genetics and Breeding of Marine Organism , College of Marine Life Sciences, Ocean University of China , Qingdao , PR China and
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Suzuki JI, Yamaguchi T, Matsutomo T, Amano H, Morihara N, Kodera Y. S-1-Propenylcysteine promotes the differentiation of B cells into IgA-producing cells by the induction of Erk1/2-dependent Xbp1 expression in Peyer's patches. Nutrition 2016; 32:884-9. [PMID: 27134204 DOI: 10.1016/j.nut.2016.01.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 01/19/2016] [Accepted: 01/30/2016] [Indexed: 01/28/2023]
Abstract
OBJECTIVES S-Allylcysteine (SAC) and S-1-propenylcysteine (S1PC) are the characteristic sulfur-containing amino acids in aged garlic extract. In this study, we investigated the effect of SAC and S1PC on intestinal immunoglobulin (Ig)A production to gain insight into the immunomodulatory effect of aged garlic extract. METHODS In vitro study: Mouse splenic lymphocytes were treated with S1PC (0.1 and 0.3 mM) or SAC (0.1 and 0.3 mM) for 3 d, and IgA concentration in the culture medium was examined. In vivo study: Mice were orally administrated S1PC (7.5, 15, and 30 mg/kg) for 5 d and the IgA level in the intestinal lavage fluids as well as the population of IgA-producing cells in Peyer's patches were measured using mouse IgA enzyme-linked immunosorbent assay quantification set and flow cytometer, respectively. RESULTS S1PC enhanced IgA production in mouse splenic lymphocytes in culture. However, SAC was ineffective. In addition, oral administration of S1PC to mice increased the IgA level and number of IgA-producing cells in Peyer's Patches. Furthermore, S1PC induced the expression of X-box binding protein 1 (Xbp1) mRNA, an inducer of plasma cell differentiation, in Peyer's patches. This induction was accompanied by the degradation of paired box protein 5 and the activation of mitogen activated protein/extracellular signal-regulated kinase signaling pathway. CONCLUSION These results suggest that S1PC increases IgA-producing cells via the enhancement of Erk1/2-mediated Xbp1 expression in the intestine.
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Affiliation(s)
- Jun-Ichiro Suzuki
- Drug Discovery Laboratory, Wakunaga Pharmaceutical Co. Ltd., Hiroshima, Japan.
| | - Takako Yamaguchi
- Drug Discovery Laboratory, Wakunaga Pharmaceutical Co. Ltd., Hiroshima, Japan
| | - Toshiaki Matsutomo
- Drug Discovery Laboratory, Wakunaga Pharmaceutical Co. Ltd., Hiroshima, Japan
| | - Hirotaka Amano
- Drug Discovery Laboratory, Wakunaga Pharmaceutical Co. Ltd., Hiroshima, Japan
| | - Naoaki Morihara
- Drug Discovery Laboratory, Wakunaga Pharmaceutical Co. Ltd., Hiroshima, Japan
| | - Yukihiro Kodera
- Drug Discovery Laboratory, Wakunaga Pharmaceutical Co. Ltd., Hiroshima, Japan
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Zhang W, Jin W, Sun D, Zhao L, Wang J, Duan D, Zhang Q. Structural analysis and anti-complement activity of polysaccharides from Kjellmaniella crsaaifolia. Mar Drugs 2015; 13:1360-74. [PMID: 25786064 PMCID: PMC4377988 DOI: 10.3390/md13031360] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 03/02/2015] [Accepted: 03/05/2015] [Indexed: 12/04/2022] Open
Abstract
Two polysaccharides, named KCA and KCW, were extracted from Kjellmaniella crassifolia using dilute hydrochloric acid and water, respectively. Composition analysis showed that these polysaccharides predominantly consisted of fucose, with galactose, mannose and glucuronic acid as minor components. After degradation and partial desulfation, electrospray ionization mass spectrometry (ESI-MS) was performed, which showed that the polysaccharides consisted of sulfated fucooligosaccharides, sulfated galactofucooligosaccharides and methyl glycosides of mono-sulfated/multi-sulfated fucooligosaccharides. The structures of the oligomeric fragments were further characterized by electrospray ionization collision-induced dissociation tandem mass spectrometry (ESI-CID-MS2 and ESI-CID-MS3). Moreover, the activity of KCA and KCW against the hemolytic activity of both the classical and alternative complement pathways was determined. The activity of KCA was found to be similar to KCW, suggesting that the method of extraction did not influence the activity. In addition, the degraded polysaccharides (DKCA and DKCW) displayed lower activity levels than the crude polysaccharides (KCA and KCW), indicating that molecular weight had an effect on activity. Moreover, the desulfated fractions (ds-DKCA and ds-DKCW) showed less or no activity, which confirmed that sulfate was important for activity. In conclusion, polysaccharides from K. crassifolia may be good candidates for the treatment of diseases involving the complement pathway.
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Affiliation(s)
- Wenjing Zhang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
- College of Earth Science, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Weihua Jin
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Delin Sun
- Heze Juxinyuan Food Co. Ltd., Heze 274400, China.
| | - Luyu Zhao
- Heze Juxinyuan Food Co. Ltd., Heze 274400, China.
| | - Jing Wang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
- Nantong Branch, Institute of Oceanology, Chinese Academy of Sciences, Nantong 226006, China.
| | - Delin Duan
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Quanbin Zhang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
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9
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Impact of Oceanographic Environmental Shifts and Atmospheric Events on the Sustainable Development of Coastal Aquaculture: A Case Study of Kelp and Scallops in Southern Hokkaido, Japan. SUSTAINABILITY 2015. [DOI: 10.3390/su7021263] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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OHNOGI H, NAITO Y, HIGASHIMURA Y, UNO K, YOSHIKAWA T. Immune Efficacy and Safety of Fucoidan Extracted from Gagome Kombu (Kjellmaniella crassifolia) in Healthy Japanese Subjects. ACTA ACUST UNITED AC 2015. [DOI: 10.1625/jcam.12.87] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hiromu OHNOGI
- TAKARA BIO INC
- Department of Food Factor Science, Graduate School of Medical Science,Kyoto Prefectural University of Medicine
| | - Yuji NAITO
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
| | - Yasuki HIGASHIMURA
- Department of Food Factor Science, Graduate School of Medical Science,Kyoto Prefectural University of Medicine
| | - Kazuko UNO
- Louis Pasteur Center for Medical Research
| | - Toshikazu YOSHIKAWA
- Department of Food Factor Science, Graduate School of Medical Science,Kyoto Prefectural University of Medicine
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Yan H, Ohno N, Tsuji NM. The role of C-type lectin receptors in immune homeostasis. Int Immunopharmacol 2013; 16:353-7. [DOI: 10.1016/j.intimp.2013.04.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 04/01/2013] [Indexed: 12/19/2022]
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12
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Yan H, Chang H. Antioxidant and antitumor activities of selenium- and zinc-enriched oyster mushroom in mice. Biol Trace Elem Res 2012; 150:236-41. [PMID: 22639385 DOI: 10.1007/s12011-012-9454-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 05/14/2012] [Indexed: 01/07/2023]
Abstract
Selenium and zinc are well-known essential trace elements with potent biological functions. However, the possible health benefits of the combined administration of dietary selenium and zinc have not been studied extensively. In this study, we prepared selenium- and zinc-enriched mushrooms (SZMs) containing increased levels of selenium and zinc. The effects of SZMs on antioxidant and antitumor activities were evaluated. Mice were fed with either a control diet or a diet supplemented with SZMs or sodium selenite and zinc sulfate for 6 weeks. Antioxidant capacity was investigated by measuring the activities of antioxidant enzymes and the levels of lipid peroxide products. Results showed that treatment with SZMs significantly increased the activities of glutathione peroxidase (GPx) and superoxide dismutase and decreased the levels of malondialdehyde and lipofuscin. Furthermore, using a mouse model of lung tumors, we found that SZMs significantly decreased the number of tumor nodes with an increase in the activity of GPx. SZMs had a greater effect on the increase in both antioxidant and antitumor activities than did sodium selenite and zinc sulfate. These findings suggest that SZMs may be effective for improving antioxidant capacity and preventing tumors.
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Affiliation(s)
- Huimin Yan
- Department of Central Laboratory, Fifth Hospital of Shijiazhuang, Shijiazhuang, Hebei, 050021, China
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