151
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Xue GD, Wu SB, Choct M, Swick RA. Effects of yeast cell wall on growth performance, immune responses and intestinal short chain fatty acid concentrations of broilers in an experimental necrotic enteritis model. ACTA ACUST UNITED AC 2017; 3:399-405. [PMID: 29767160 PMCID: PMC5941278 DOI: 10.1016/j.aninu.2017.08.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/23/2017] [Accepted: 08/05/2017] [Indexed: 12/28/2022]
Abstract
Subclinical necrotic enteritis (NE) causes devastating economic losses in the broiler chicken industry, especially in birds raised free of in-feed antibiotics. Prebiotics are potential alternatives to in-feed antibiotics. Yeast cell wall extract (YCW) derived from Saccharomyces cerevisiae is a prebiotic with known immune modulating effects. This study examined the effects of YCW and antibiotics (AB) during subclinical NE on broiler growth performance, intestinal lesions, humoral immune response and gut microflora metabolites. The study employed a 2 × 3 factorial arrangement of treatments. Factors were: NE challenge (yes or no) and feed additive (control, AB, or YCW). Each treatment was replicated in 8 floor pens with 15 birds per pen. Challenged birds had higher feed conversion ratio (FCR) than unchallenged birds on d 35 (P < 0.05). Dietary inclusion of AB decreased FCR regardless of challenge (P < 0.05) on d 24 and 35. Inclusion of YCW reduced serum interleukin-1 (IL-1) concentration in NE challenged birds (P < 0.01) and increased immunoglobulin (Ig) G (P < 0.05) and Ig M (P < 0.05) levels compared to other dietary treatments regardless of challenge. Yeast cell wall extract increased formic acid concentration in cecal contents during challenge and increased butyric acid concentration in unchallenged birds on d 16. This study indicates YCW suppressed inflammatory response, promoted generation of immunoglobulin and increased short chain fatty acid production suggesting potential benefits to bird health.
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Affiliation(s)
- Guang-Da Xue
- Animal Science, School of Environmental and Rural Sciences, University of New England, Armidale, NSW 2351, Australia
| | - Shu-Biao Wu
- Animal Science, School of Environmental and Rural Sciences, University of New England, Armidale, NSW 2351, Australia
| | - Mingan Choct
- Animal Science, School of Environmental and Rural Sciences, University of New England, Armidale, NSW 2351, Australia
| | - Robert A Swick
- Animal Science, School of Environmental and Rural Sciences, University of New England, Armidale, NSW 2351, Australia
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152
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Silva IS, Nicolau LAD, Sousa FBM, Araújo SD, Oliveira AP, Araújo TSL, Souza LKM, Martins CS, Aquino PEA, Carvalho LL, Silva RO, Rolim-Neto PJ, Medeiros JVR. Evaluation of anti-inflammatory potential of aqueous extract and polysaccharide fraction of Thuja occidentalis Linn. in mice. Int J Biol Macromol 2017; 105:1105-1116. [PMID: 28751047 DOI: 10.1016/j.ijbiomac.2017.07.142] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/22/2017] [Accepted: 07/21/2017] [Indexed: 12/15/2022]
Abstract
Inflammation is a protective reaction of the microcirculation. However, sustained inflammation can lead to undesired effects. Thuja occidentalis Linn has many pharmacological properties but has no anti-inflammatory activity described. Thus, this study aims evaluating the anti-inflammatory activity of the aqueous extract (AE) and the polysaccharide fraction (PLS) of T. occidentalis L. in mice. The results of our evaluations in various experimental models indicated that AE and PLS (3, 10, and 30mg/kg, i.p.) reduced (p˂0.05) paw edema induced by carrageenan, dextran sulfate (DEX), compound 48/80, serotonin (5-HT), bradykinin (BK), histamine (HIST), and prostaglandin E2 (PGE2). Furthermore, it inhibited neutrophils recruitment; decreased MPO activity, tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) levels, vascular permeability, nitrite concentration, and MDA concentration; and maintained the GSH levels in the peritoneal exudate. The AE and PLS reduced neutrophil infiltration and cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) immunostaining in paw tissue. Treatment with the AE and PLS (300mg/kg) did not induce gastric toxicity. In conclusion, these results show that the AE and PLS reduced the inflammatory response by inhibiting vascular and cellular events, inhibiting pro-inflammatory cytokine production, and reducing oxidative stress. Furthermore, they did not induce gastric toxicity at high doses.
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Affiliation(s)
- Irismara S Silva
- Laboratory of Experimental Physiopharmacology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Lucas A D Nicolau
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Francisca B M Sousa
- Laboratory of Experimental Physiopharmacology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Simone de Araújo
- Laboratory of Experimental Physiopharmacology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Ana P Oliveira
- Laboratory of Experimental Physiopharmacology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Thiago S L Araújo
- Laboratory of Experimental Physiopharmacology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Luan Kelves M Souza
- Laboratory of Experimental Physiopharmacology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Conceição S Martins
- Department of Morphofunctional Science, Federal University of Ceará, Fortaleza, CE, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Pedro E A Aquino
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Lucas L Carvalho
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Renan O Silva
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Pedro J Rolim-Neto
- Technology Laboratory of Medicine, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil
| | - Jand Venes R Medeiros
- Laboratory of Experimental Physiopharmacology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Post-graduation Program in Immunology, University of São Paulo, São Paulo, SP, Brazil.
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153
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Zhang W, An M, Xi J, Liu H. Targeting CpG Adjuvant to Lymph Node via Dextran Conjugate Enhances Antitumor Immunotherapy. Bioconjug Chem 2017. [PMID: 28644608 DOI: 10.1021/acs.bioconjchem.7b00313] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nucleic acid based adjuvants recognized by Toll-like receptors (TLR) are potent immune system stimulants that can augment the antitumor immune responses in an antigen-specific manner. However, their clinical uses as vaccine adjuvants are limited primarily due to lack of accumulation in the lymph nodes, the anatomic sites where the immune responses are initiated. Here, we showed that chemical conjugation of type B CpG DNA, a TLR9 agonist to dextran polymer dramatically enhanced CpG's lymph node accumulation in mice. Dextran conjugation did not alter CpG ODN's uptake, internalization, and bioactivity in vitro. Delivery of Dextran-CpG conjugate markedly increased the uptake by antigen presenting cells in the lymph nodes and enhanced CD8+ T cell responses primed by protein vaccines, leading to improved therapeutic antitumor immunity. Furthermore, immunization with Dextran-CpG mixed with necrotic whole tumor cells induced a protective antitumor response in a murine model, suggesting that this approach was not limited to molecularly defined antigens. This simple method might also be applicable for the delivery of many other nucleic acid based adjuvants in cancer vaccines.
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Affiliation(s)
- Weidong Zhang
- Department of Chemical Engineering and Materials Science, Wayne State University , Detroit, Michigan 48202, United States
| | - Myunggi An
- Department of Chemical Engineering and Materials Science, Wayne State University , Detroit, Michigan 48202, United States
| | - Jingchao Xi
- Department of Chemical Engineering and Materials Science, Wayne State University , Detroit, Michigan 48202, United States
| | - Haipeng Liu
- Department of Chemical Engineering and Materials Science, Wayne State University , Detroit, Michigan 48202, United States.,Department of Oncology, Wayne State University , Detroit, Michigan 48201, United States.,Tumor Biology and Microenvironment Program, Barbara Ann Karmanos Cancer Institute , Detroit, Michigan 48201, United States
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154
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More P, Pai K. Involvement of tyrosine-specific protein kinase and protein kinase C in J774A.1 macrophage functions activated by Tinospora cordifolia. J Ayurveda Integr Med 2017; 8:88-92. [PMID: 28600163 PMCID: PMC5496996 DOI: 10.1016/j.jaim.2016.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/07/2016] [Accepted: 12/28/2016] [Indexed: 11/17/2022] Open
Abstract
Background Macrophages are the first line of defense and constitute important participant in the bi-directional interaction between innate and specific immunity. Macrophages are in a quiescent form and get activated when given a stimulus. In our previous studies we have reported that guduchi or LPS treatment of macrophages enhanced production of nitric oxide (NO) and increased tumoricidal activity against L929 fibroblast cells. Objective In the present study effect of Tinospora cordifolia commonly known as guduchi on macrophage activation and the mechanism of action i.e. involvement of protein kinase C inhibitor and tyrosine-specific protein kinase inhibitor was investigated. Materials and Methods The present study was undertaken to determine whether H-7 (inhibitor of protein kinase C) and/or genistein (inhibitor of tyrosine-specific protein kinase) could inhibit guduchi or LPS-induced macrophage NO and TNF-α production or reduce the cytolysis of L929 fibroblast cells. Results It was observed that in vitro incubation with H-7 and/or genistein completely inhibited guduchi or LPS-induced NO and TNF-α production by macrophages (J774A.1). Conclusion The inhibitory effects of H-7 and/or genistein, suggest that phosphorylation via these kinases may upregulate the NO synthase activity in macrophages.
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Affiliation(s)
- Priti More
- Department of Zoology, S. P. Pune University, India
| | - Kalpana Pai
- Department of Zoology, S. P. Pune University, India.
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155
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Ho GTT, Wangensteen H, Barsett H. Elderberry and Elderflower Extracts, Phenolic Compounds, and Metabolites and Their Effect on Complement, RAW 264.7 Macrophages and Dendritic Cells. Int J Mol Sci 2017; 18:ijms18030584. [PMID: 28282861 PMCID: PMC5372600 DOI: 10.3390/ijms18030584] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 02/27/2017] [Accepted: 03/04/2017] [Indexed: 12/11/2022] Open
Abstract
Modulation of complement activity and inhibition of nitric oxide (NO) production by macrophages and dendritic cells may have therapeutic value in inflammatory diseases. Elderberry and elderflower extracts, constituents, and metabolites were investigated for their effects on the complement system, and on NO production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages and murine dendritic D2SC/I cells. The EtOH crude extracts from elderberry and elderflower and the isolated anthocyanins and procyanidins possessed strong complement fixating activity and strong inhibitory activity on NO production in RAW cells and dendritic cells. Phenolic compounds in the range of 0.1–100 µM showed a dose-dependent inhibition of NO production, with quercetin, rutin, and kaempferol as the most potent ones. Among the metabolites, caffeic acid and 3,4-dihydroxyphenylacetic acid showed the strongest inhibitory effects on NO production in both cell lines, without having cytotoxic effect. Only 4-methylcatechol was cytotoxic at the highest tested concentration (100 µM). Elderberry and elderflower constituents may possess inflammatory modulating activity, which increases their nutritional value.
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Affiliation(s)
- Giang Thanh Thi Ho
- School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, P.O. Box 1068, Blindern, N-0316 Oslo, Norway.
| | - Helle Wangensteen
- School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, P.O. Box 1068, Blindern, N-0316 Oslo, Norway.
| | - Hilde Barsett
- School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, P.O. Box 1068, Blindern, N-0316 Oslo, Norway.
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156
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Lanctôt S, Fustier P, Taherian A, Bisakowski B, Zhao X, Lacasse P. Effect of intramammary infusion of chitosan hydrogels at drying-off on bovine mammary gland involution. J Dairy Sci 2017; 100:2269-2281. [DOI: 10.3168/jds.2016-12087] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/26/2016] [Indexed: 12/23/2022]
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157
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Yang LC, Lai CY, Lin WC. Natural killer cell-mediated cytotoxicity is increased by a type II arabinogalactan from Anoectochilus formosanus. Carbohydr Polym 2017; 155:466-474. [DOI: 10.1016/j.carbpol.2016.08.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 08/26/2016] [Accepted: 08/26/2016] [Indexed: 01/09/2023]
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158
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Abstract
Pediatrics is a dynamic discipline and there is awareness and hope for actualizing outstanding achievements in the field of child health in 21st century and beyond. Improved lifestyle and quality of children's health is likely to reduce the burden of adult diseases and enhance longevity because seeds of most adult diseases are sown in childhood. Identification and decoding of human genome is expected to revolutionize the practice of pediatrics. The day is not far off when a patient will walk into doctor's chamber with an electronic or digital health history on a CD or palmtop and a decoded genomic constitution. There will be reduced burden of genetic diseases because of selective abortions of "defective" fetuses and replacement of "bad" genes with "good" ones by genetic engineering. Availability of totipotent stem cells and developments in transplant technology are likely to revolutionize the management of a variety of hematologic cancers and life-threatening genetic disorders. The possibility of producing flawless designer babies by advances in assisted reproductive technologies (ARTs) is likely to be mired by several ethical and legal issues.The availability of newer vaccines by recombinant technology for emerging infective and for non-infective lifestyle diseases is likely to improve survival and quality of life. There is going to be a greater focus on the "patient" having the disease rather than "disease" per se by practicing holistic pediatrics by effective utilization of alternative or complementary strategies for health care. Due to advances in technology, pediatrics may get further dehumanized. A true healer cannot simply rely on technology; there must be a spiritual bond between the patient and the physician by exploiting the concept of psycho-neuro-immunology and body-mind interactions. In the years to come, physicians are likely to play "god" but medicine can't achieve immortality because anything born must die in accordance with nature's recycling blueprint. The medical science is likely to improve longevity but our goal should be to improve the quality of life.
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Affiliation(s)
- Meharban Singh
- Child Care Center, 625, Sector 37, Arun Vihar, Noida, UP, India.
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159
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Martins VMR, Simões J, Ferreira I, Cruz MT, Domingues MR, Coimbra MA. In vitro macrophage nitric oxide production by Pterospartum tridentatum (L.) Willk. inflorescence polysaccharides. Carbohydr Polym 2016; 157:176-184. [PMID: 27987893 DOI: 10.1016/j.carbpol.2016.09.079] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 09/14/2016] [Accepted: 09/26/2016] [Indexed: 10/20/2022]
Abstract
Pterospartum tridentatum (L.) Willk. decoctions of dried inflorescences are used in Portugal due to their claimed beneficial properties for various health disorders. To disclose the potential contribution of its polysaccharides to health benefits, in this work, hot water extracts from P. tridentatum inflorescences were prepared and fractionated by ethanol precipitation and anion exchange chromatography. The fraction rich in acetylated galactomannans evidenced an increase in nitric oxide (NO) production by macrophages. This activity decreased 60-75% after saponification, confirming that acetylation is an important structural feature for this biological property. In addition, the treatment of pectic polysaccharides with endo-polygalacturonase showed that type-I and type-II arabinogalactans, as well as low molecular weight galacturonans and xyloglucans, may also contribute to macrophage NO production. Thus, the polysaccharides present in P. tridentatum dried inflorescences may contribute to the health beneficial properties frequently attributed to the decoctions of this plant.
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Affiliation(s)
- Vitor M R Martins
- QOPNA and Departamento de Química, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CIMO-ESA, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5301-855 Bragança, Portugal
| | - Joana Simões
- QOPNA and Departamento de Química, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Isabel Ferreira
- CNC, Universidade de Coimbra, Azinhaga de Santa Comba, 3004-517 Coimbra, Portugal; Faculdade de Farmácia, Universidade de Coimbra, 3000-548 Coimbra, Portugal
| | - Maria Teresa Cruz
- CNC, Universidade de Coimbra, Azinhaga de Santa Comba, 3004-517 Coimbra, Portugal; Faculdade de Farmácia, Universidade de Coimbra, 3000-548 Coimbra, Portugal
| | - M Rosário Domingues
- QOPNA and Departamento de Química, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Manuel A Coimbra
- QOPNA and Departamento de Química, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
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160
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Immune-enhancing activity of extracellular polysaccharides isolated from Rhizopus nigricans. Carbohydr Polym 2016; 148:318-25. [DOI: 10.1016/j.carbpol.2016.04.068] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 04/15/2016] [Accepted: 04/17/2016] [Indexed: 01/04/2023]
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161
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Ngcobo M, Gqaleni N. Evaluation of the immunomodulatory effects of a South African commercial traditional immune booster in human peripheral blood mononuclear cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:300. [PMID: 27550057 PMCID: PMC4994178 DOI: 10.1186/s12906-016-1294-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 08/17/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND With the burden of HIV and AIDS still very high, South Africa has seen an increase in commercial traditional medicines claiming to have immune-enhancing effects. Because of lack of regulation of the traditional medicine sector, these products have proliferated. This study aimed to evaluate the immunomodulatory effects of uMakhonya®, a commercial traditional immune booster, using various models of normal human peripheral blood mononuclear cells (PBMCs). METHODS Immunosuppressed, mitogen-, and peptidoglycan (PG)-stimulated PBMCs were treated with various doses of uMakhonya® and incubated for 24 h. The treated and control samples were analyzed for cytotoxicity, secretion of 12 different inflammatory cytokines, soluble interleukin-2 receptor (sIL-2R) levels, and nitric oxide (NO) secretion. RESULTS In cytotoxicity assays, uMakhonya® induced dose-dependent cytotoxic effects in all three models, with IC50 values of 512.08, 500, and 487.91 μg/mL for immunosuppressed, phytohaemagglutinin (PHA)-, and PG from Staphylococcus. aureus (PG-S. aureus)-stimulated PBMCs, respectively. UMakhonya® at 100 and 10 μg/mL induced a significant (p < 0.05) increase in the secretion of IL-1α, IL-1β, IL-6, IL-10, tumor necrosis factor alpha (TNF)-α, and granulocyte-macrophage colony-stimulating factor (GM-CSF) in cyclosporine-, immunosuppressed, and PHA-stimulated PBMCs. In the same samples, there was a significant increase (p < 0.05) in sIL-2R concentration, which correlated with an increase in the secretion of inflammatory cytokines. In PBMCs stimulated with PG-S. aureus, uMakhonya® at doses of 100 and 10 μg/mL significantly (p < 0.05) suppressed the secretion of inflammatory cytokines, especially IL-1β and TNF-α. PG-S. aureus-stimulated PBMCs also showed a significant decrease (p < 0.05) in sIL-2R concentration when compared to control samples. UMakhonya® insignificantly (p > 0.05) decreased NO levels in PBMCs after PG-S. aureus stimulation. CONCLUSIONS These results showed that uMakhonya® can induce both pro-inflammatory and anti-inflammatory effects depending on the initial stimuli applied to immune cells.
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Affiliation(s)
- Mlungisi Ngcobo
- Traditional Medicine Laboratory, School of Nursing and Public Health, College of Health Sciences, University of KwaZulu Natal, Durban, South Africa
| | - Nceba Gqaleni
- Department of Public Management and Economics, Faculty of Management Sciences, Durban University of Technology, Durban, South Africa
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162
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Lycium barbarum polysaccharides ameliorates renal injury and inflammatory reaction in alloxan-induced diabetic nephropathy rabbits. Life Sci 2016; 157:82-90. [DOI: 10.1016/j.lfs.2016.05.045] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Revised: 05/26/2016] [Accepted: 05/31/2016] [Indexed: 12/28/2022]
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163
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Firashathulla S, Inamdar MN, Rafiq M, Viswanatha GL, Sharath Kumar LM, Babu UV, Ramakrishnan S, Paramesh R. IM-133N - A Useful Herbal Combination for Eradicating Disease-triggering Pathogens in Mice via Immunotherapeutic Mechanisms. J Pharmacopuncture 2016; 19:21-7. [PMID: 27280046 PMCID: PMC4887748 DOI: 10.3831/kpi.2016.19.003] [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: 01/03/2023] Open
Abstract
Objectives: The present study was undertaken to evaluate the immunomodulatory (IM) activity of IM-133N, a herbal combination in various immunotherapeutic experimental models. Methods: The IM activity of IM-133N was evaluated against three experimental models namely, effect of IM- 133N against Escherichia coli (E. coli)-induced abdominal sepsis in mice, and carbon clearance test was performed in Wistar albino rats to evaluated the phagocytic potential of IM-133N, in addition IM-133N was evaluated for its immunoglobulin enhancing potential in rats, where the immunoglobulin levels were measured by zinc sulphate turbity (ZST) test. Further, IM-133N was subjected for detailed liquid chromatography-mass spectrometry (LC-MS)/MS analysis to identify the probable active constituents present in it. Results: The findings of the present study has demonstrated very promising IM property of IM-133N in all the experimental models. Briefly, pretreatment with IM-133N at 125, 250, 500 and 1,000 mg/kg, p.o. doses had protected the mice against E. coli-induced abdominal sepsis and mortality, further the effect of IM- 133N was found to be significant and dose-dependent. In support of this, in another study administration of IM-133N showed a significant and dose-dependent increase in serum immunoglobulin levels, estimated by ZST test. In line with the above findings, in the carbon clearance test the low doses (125 and 250 mg/ kg, p.o.) of IM-133N increased the rate of carbon clearance, whereas the higher doses (500 and 1,000 mg/kg, p.o.) did not sustain the response, and saturation effect was considered as one of the possible reason for futility of higher doses for IM-133N. In addition, A detailed LC-MS/MS analysis of IM-133N showed 17 bioactive phytochemical constituents: namely, apigenin, chaulmoogric acid, mesquitol, quercetin, symphoxanthone, salireposide, β-sitosterol, nonaeicosanol, β-amyrin, betulic acid, oleanolic acid, symplososide, symponoside, symploveroside, symplocomoside, symconoside A and locoracemoside B. Conclusion: These findings suggest that IM-133N possesses significant IM activity and, hence, could be useful for eradicating opportunistic disease-triggering pathogens via immunotherapeutic mechanisms. The findings also suggest IM-133N may also useful in other immunity disorders.
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Affiliation(s)
- Syed Firashathulla
- Department of Pharmacology, Al-Ameen College of Pharmacy, Hosur Road, Bangalore, India
| | | | - Mohamed Rafiq
- R&D Center, The Himalaya Drug Company, Bangalore, India
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164
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Lin CH, Chang CY, Lee KR, Lin HJ, Lin WC, Chen TH, Wan L. Cold-water extracts of Grifola frondosa and its purified active fraction inhibit hepatocellular carcinoma in vitro and in vivo. Exp Biol Med (Maywood) 2016; 241:1374-85. [PMID: 27013543 DOI: 10.1177/1535370216640149] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 02/18/2016] [Indexed: 12/22/2022] Open
Abstract
Mushrooms are used in traditional Chinese medicine to treat a variety of diseases. Grifola frondosa (GF) is an edible mushroom indigenous to many Asian countries with a large fruiting body characterized by overlapping caps. In particular, GF is known for its anti-tumor activity, which has been targeted by scientific and clinical research. This study aimed to investigate the effects of the cold-water extract of GF (GFW) and its active fraction (GFW-GF) on autophagy and apoptosis, and the underlying mechanisms in vitro and in vivo Our results revealed that GFW and GFW-GF inhibited phosphatidylinositol 3-kinase (PI3K) and stimulated c-Jun N-terminal kinase (JNK) pathways, thereby inducing autophagy. We also demonstrated that GFW and GFW-GF inhibited proliferation, induced cell cycle arrest, and apoptosis in Hep3B hepatoma cells. GFW and GFW-GF markedly arrested cells in S phase and promoted cleavage of caspase-3 and -9. In addition, GFW and GFW-GF decreased the expression levels of the anti-apoptotic proteins protein kinase B and extracellular signal-regulated kinase. We also found that GFW significantly inhibited tumor growth in nude mice implanted with Hep3B cells. Our work demonstrates that GF and its active fraction inhibit hepatoma growth by inducing autophagy and apoptosis.
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Affiliation(s)
- Chia-Hung Lin
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ching-Yao Chang
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan
| | - Kuan-Rong Lee
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Hui-Ju Lin
- Department of Ophthalmology, China Medical University Hospital, Taichung 40402, Taiwan School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
| | - Wu-Chou Lin
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan Department of Gynecology, China Medical University Hospital, Taichung 40402, Taiwan
| | - Ter-Hsin Chen
- Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Lei Wan
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan Department of Gynecology, China Medical University Hospital, Taichung 40402, Taiwan
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165
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Lim JD, Yu CY, Kim SH, Chung IM. Structural characterization of an intestinal immune system-modulating arabino-3,6-galactan-like polysaccharide from the above-ground part of Astragalus membranaceus (Bunge). Carbohydr Polym 2016; 136:1265-72. [DOI: 10.1016/j.carbpol.2015.10.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/08/2015] [Accepted: 10/11/2015] [Indexed: 12/17/2022]
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166
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Jiang Z, Wei S, Wang Z, Zhu C, Hu S, Zheng C, Chen Z, Hu Y, Wang L, Ma X, Yang X. Effects of different forms of yeast Saccharomyces cerevisiae on growth performance, intestinal development, and systemic immunity in early-weaned piglets. J Anim Sci Biotechnol 2015; 6:47. [PMID: 26568826 PMCID: PMC4644338 DOI: 10.1186/s40104-015-0046-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 10/19/2015] [Indexed: 11/10/2022] Open
Abstract
The present study was conducted to determine effects of different forms of yeast (Saccharomyces cerevisiae, strain Y200007) on the growth performance, intestinal development, and systemic immunity in early-weaned piglets. A total of 96 piglets (14-d old, initial average body weight of 4.5 kg) were assigned to 4 dietary treatments: (1) basal diet without yeast (Control); (2) basal diet supplemented with 3.00 g/kg live yeast (LY); (3) basal diet supplemented with 2.66 g/kg heat-killed whole yeast (HKY); and (4) basal diet supplemented with 3.00 g/kg superfine yeast powders (SFY). Diets and water were provided ad libitum to the piglets during 3-week experiment. Growth performance of piglets was measured weekly. Samples of blood and small intestine were collected at days 7 and 21 of experiment. Dietary supplementation with LY and SFY improved G:F of piglets at days 1-21 of the experiment (P < 0.05) compared to Control group. Serum concentrations of growth hormone (GH), triiodothyronine (T3), tetraiodothyronine (T4), and insulin growth factor 1 (IGF-1) in piglets at day 21 of the experiment were higher when fed diets supplemented with LY and SFY than those in Control group (P < 0.05). Compared to Control group, contents of serum urea nitrogen of piglets were reduced by the 3 yeast-supplemented diets (P < 0.05). Diets supplemented with LY increased villus height and villus-to-crypt ratio in duodenum and jejunum of piglets (P < 0.05) compared to other two groups at day 7 of the experiment. Feeding diets supplemented with LY and SFY increased (P < 0.05) serum concentrations of IgA, IL-2, and IL-6 levels in piglets compared to Control. The CD4(+)/CD8(+) ratio and proliferation of T-lymphocytes in piglets fed diets supplemented with LY were increased compared to that of Control group at day 7 of the experiment (P < 0.05). In conclusion, dietary supplementation with both LY and SFY enhanced feed conversion, small intestinal development, and systemic immunity in early-weaned piglets, with better improvement in feed conversion by dietary supplementation with LY, while dietary supplementation with SFY was more effective in increasing systemic immune functions in early-weaned piglets.
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Affiliation(s)
- Zongyong Jiang
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China ; Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Shaoyong Wei
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Zhilin Wang
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Cui Zhu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Shenglan Hu
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Chuntian Zheng
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Zhuang Chen
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Youjun Hu
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Li Wang
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Xianyong Ma
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
| | - Xuefen Yang
- Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China
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167
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Zhang Q, Lv X, Wu T, Ma Q, Teng A, Zhang Y, Zhang M. Composition of Lycium barbarum polysaccharides and their apoptosis-inducing effect on human hepatoma SMMC-7721 cells. Food Nutr Res 2015; 59:28696. [PMID: 26563650 PMCID: PMC4643179 DOI: 10.3402/fnr.v59.28696] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/10/2015] [Accepted: 10/15/2015] [Indexed: 01/04/2023] Open
Abstract
Background Lycium barbarum polysaccharide (LBP) is a natural functional component that has a variety of biological activities. The molecular structures and apoptosis-inducing activities on human hepatoma SMMC-7721 cells of two LBP fractions, LBP-d and LBP-e, were investigated. Results The results showed that LBP-d and LBP-e both consist of protein, uronic acid, and neutral sugars in different proportions. The structure of LBP was characterized by gas chromatography, periodate oxidation, and Smith degradation. LBP-d was composed of eight kinds of monosaccharides (fucose, ribose, rhamnose, arabinose, xylose, mannose, galactose, and glucose), while LBP-e was composed of six kinds of monosaccharides (fucose, rhamnose, arabinose, mannose, galactose, and glucose). LBP-d and LBP-e blocked SMMC-7721 cells at the G0/G1 and S phases with an inhibition ratio of 26.70 and 45.13%, respectively, and enhanced the concentration of Ca2+ in the cytoplasm of SMMC-7721. Conclusion The contents of protein, uronic acid, and galactose in LBP-e were much higher than those in LBP-d, which might responsible for their different bioactivities. The results showed that LBP can be provided as a potential chemotherapeutic agent drug to treat cancer.
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Affiliation(s)
- Qian Zhang
- Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin, China.,Department of Biological and Food Engineering, Tianshi College, Tianjin, China
| | - Xiaoling Lv
- Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin, China
| | - Tao Wu
- Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin, China
| | - Qian Ma
- Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin, China
| | - Anguo Teng
- Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin, China
| | - Ying Zhang
- Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin, China
| | - Min Zhang
- Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin, China;
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168
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Saleh MA, Amorim AB, Grecco HA, Berto DA, Padovani CR, Orsi RDO, Tse ML. Effects of β-(1→3,1→6)-d-glucan and density of diets on the blood profiles of immunologically challenged weaned piglets. Int J Biol Macromol 2015; 80:659-67. [DOI: 10.1016/j.ijbiomac.2015.07.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 07/09/2015] [Accepted: 07/12/2015] [Indexed: 01/05/2023]
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169
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Ferreira SS, Passos CP, Madureira P, Vilanova M, Coimbra MA. Structure-function relationships of immunostimulatory polysaccharides: A review. Carbohydr Polym 2015; 132:378-96. [PMID: 26256362 DOI: 10.1016/j.carbpol.2015.05.079] [Citation(s) in RCA: 651] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/28/2015] [Accepted: 05/31/2015] [Indexed: 12/20/2022]
Abstract
Immunostimulatory polysaccharides are compounds capable of interacting with the immune system and enhance specific mechanisms of the host response. Glucans, mannans, pectic polysaccharides, arabinogalactans, fucoidans, galactans, hyaluronans, fructans, and xylans are polysaccharides with reported immunostimulatory activity. The structural features that have been related with such activity are the monosaccharide and glycosidic-linkage composition, conformation, molecular weight, functional groups, and branching characteristics. However, the establishment of structure-function relationships is possible only if purified and characterized polysaccharides are used and selective structural modifications performed. Aiming at contributing to the definition of the structure-function relationships necessary to design immunostimulatory polysaccharides with potential for preventive or therapeutical purposes or to be recognized as health-improving ingredients in functional foods, this review introduces basic immunological concepts required to understand the mechanisms that rule the potential claimed immunostimulatory activity of polysaccharides and critically presents a literature survey on the structural features of the polysaccharides and reported immunostimulatory activity.
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Affiliation(s)
- Sónia S Ferreira
- QOPNA, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Cláudia P Passos
- QOPNA, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Pedro Madureira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, 4150-180 Porto, Portugal; ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
| | - Manuel Vilanova
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, 4150-180 Porto, Portugal; ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
| | - Manuel A Coimbra
- QOPNA, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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170
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Wang Z, Dong B, Feng Z, Yu S, Bao Y. A study on immunomodulatory mechanism of Polysaccharopeptide mediated by TLR4 signaling pathway. BMC Immunol 2015; 16:34. [PMID: 26032186 PMCID: PMC4450994 DOI: 10.1186/s12865-015-0100-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 05/20/2015] [Indexed: 11/17/2022] Open
Abstract
Background Polysaccharopeptide (PSP), isolated from Coriolus versicolor COV-1 strain, is a protein-bound polysaccharide widely used as immunoadjuvant for cancer immunotherapy. Although the immunomodulatory activity of PSP has been well established, the precise molecule mechanisms of its biological activity have yet to be fully elucidated. Methods In the present study, we first investigated the immunomodulatory activity of PSP in peritoneal macrophages from C57BL/10J (TLR4+/+) and C57BL/10ScCr (TLR4-/-) mice carrying a defective toll-like receptor-4 (TLR4) gene and then evaluated PSP for its effect on tumor inhibition rates and the immune organ index in above two different strains of mice. In addition, PSP were also evaluated for its activation of TLR4, TLR4-downstream molecules (TRAF6, NF-κB and AP-1) in spleens of tumor-bearing C57BL/10J (TLR4+/+) and C57BL/10ScCr (TLR4-/-) mice. Results The results showed that PSP had adjuvant activities in stimulating expressions of cytokines as well as TLR4, TRAF6, phosphorylation of NF-κB p65 transcription factors and phosphorylation of c-Jun (a component of the transcription factor AP-1) in peritoneal macrophages from C57BL/10J (TLR4+/+) mice but not from C57BL/10ScCr (TLR4-/-) mice. In vivo PSP as well as Adriamycin (ADM) decreased the mean weights of tumors compared with normal saline and PSP increased thymus index and spleen index relative to ADM in tumor-bearing C57BL/10J (TLR4+/+) mice but not in C57BL/10ScCr (TLR4-/-) mice. Conclusions We demonstrated that PSP activates peritoneal macrophages in vitro via TLR4 signaling pathway and PSP functions its immunoregulatory effect in vivo also via TLR4 signaling pathway. These data strongly suggest TLR4 signaling pathway is involved in PSP-mediated immunomodulatory activities.
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Affiliation(s)
- Zhixue Wang
- Department of Clinical Laboratory, the Second Affiliated Hospital of Chongqing Medical University, Lin Jiang Rd. #76, Yuzhong District, 400010, Chongqing, China.
| | - Bing Dong
- Department of Clinical Laboratory, the Second Affiliated Hospital of Chongqing Medical University, Lin Jiang Rd. #76, Yuzhong District, 400010, Chongqing, China.
| | - Zifang Feng
- Department of Clinical Laboratory, the Second Affiliated Hospital of Chongqing Medical University, Lin Jiang Rd. #76, Yuzhong District, 400010, Chongqing, China.
| | - Shuang Yu
- Department of Clinical Laboratory, the Second Affiliated Hospital of Chongqing Medical University, Lin Jiang Rd. #76, Yuzhong District, 400010, Chongqing, China.
| | - Yixi Bao
- Department of Clinical Laboratory, the Second Affiliated Hospital of Chongqing Medical University, Lin Jiang Rd. #76, Yuzhong District, 400010, Chongqing, China.
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171
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Chen J, Yang F, Guo H, Wu F, Wang X. Optimized hydrolysis and analysis of Radix Asparagi
polysaccharide monosaccharide composition by capillary zone electrophoresis. J Sep Sci 2015; 38:2327-31. [DOI: 10.1002/jssc.201500120] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 04/02/2015] [Accepted: 04/02/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Jiye Chen
- College of Pharmacy; Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University; Baoding China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis; Ministry of Education, Hebei University; Baoding China
| | - Feifei Yang
- College of Pharmacy; Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University; Baoding China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis; Ministry of Education, Hebei University; Baoding China
| | - Huaizhong Guo
- College of Pharmacy; Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University; Baoding China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis; Ministry of Education, Hebei University; Baoding China
| | - Fang Wu
- College of Pharmacy; Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University; Baoding China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis; Ministry of Education, Hebei University; Baoding China
| | - Xiaohuan Wang
- College of Pharmacy; Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University; Baoding China
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172
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Garcia VG, Knoll LR, Longo M, Novaes VCN, Assem NZ, Ervolino E, de Toledo BEC, Theodoro LH. Effect of the probiotic Saccharomyces cerevisiae on ligature-induced periodontitis in rats. J Periodontal Res 2015; 51:26-37. [PMID: 25918871 DOI: 10.1111/jre.12274] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVE This study assessed the effects of the local use of Saccharomyces cerevisiae as monotherapy and as an adjuvant to the mechanical treatment of ligature-induced periodontitis in rats. MATERIAL AND METHODS Periodontitis was induced in 72 rats via the installation of a ligature around the mandibular first molar. After 7 d, the ligature was removed and the rats were placed in one of the following groups: no treatment (C; n = 18); scaling and root planing (SRP; n = 18); local irrigation with probiotics (PRO; n = 18); and SRP followed by local irrigation with probiotics (SRP/PRO; n = 18). Six rats from each group were killed at 7, 15 and 30 d. The histological characteristics, alveolar bone loss (ABL) and immunolabeling of tumor necrosis factor alpha (TNF-α), interleukin-1beta (IL-1β), interleukin-10 (IL-10) and TRAP on the furcation area of the first molar were assessed. RESULTS The PRO group showed features of acceleration of the tissue-repair process during the entire experiment. On day 15, there was less ABL in the SRP/PRO group compared with the C group. There were fewer TRAP-positive cells in the SRP and SRP/PRO groups at 30 d. There was less immunostaining for TNF-α in the PRO and SRP/PRO groups and less immunostaining for IL-1β in the PRO group. However, there was more immunostaining for IL-10 in the PRO group on day 15. CONCLUSION Local use of the probiotic did not result in any adverse effects on periodontal tissues. When used as monotherapy or as an adjuvant, the probiotic was effective at controlling periodontitis in rats.
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Affiliation(s)
- V G Garcia
- Group of Research and Study on Laser in Dentistry (GEPLO), Division of Periodontics, Department of Surgery and Integrated Clinic, University Estadual Paulista (UNESP), Araçatuba, Brazil.,Master Course, Barretos Dental School, University Center of the Educational Foundation of Barretos (UNIFEB), Barretos, Brazil
| | - L R Knoll
- Master Course, Barretos Dental School, University Center of the Educational Foundation of Barretos (UNIFEB), Barretos, Brazil
| | - M Longo
- Group of Research and Study on Laser in Dentistry (GEPLO), Division of Periodontics, Department of Surgery and Integrated Clinic, University Estadual Paulista (UNESP), Araçatuba, Brazil
| | - V C N Novaes
- Group of Research and Study on Laser in Dentistry (GEPLO), Division of Periodontics, Department of Surgery and Integrated Clinic, University Estadual Paulista (UNESP), Araçatuba, Brazil
| | - N Z Assem
- Group of Research and Study on Laser in Dentistry (GEPLO), Division of Periodontics, Department of Surgery and Integrated Clinic, University Estadual Paulista (UNESP), Araçatuba, Brazil
| | - E Ervolino
- Department of Basic Science, University Estadual Paulista (UNESP), Araçatuba, Brazil
| | - B E C de Toledo
- Master Course, Barretos Dental School, University Center of the Educational Foundation of Barretos (UNIFEB), Barretos, Brazil
| | - L H Theodoro
- Group of Research and Study on Laser in Dentistry (GEPLO), Division of Periodontics, Department of Surgery and Integrated Clinic, University Estadual Paulista (UNESP), Araçatuba, Brazil
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173
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Hsiao CM, Wu YS, Nan FH, Huang SL, Chen L, Chen SN. Immunomodulator 'mushroom beta glucan' induces Wnt/β catenin signalling and improves wound recovery in tilapia and rat skin: a histopathological study. Int Wound J 2015; 13:1116-1128. [PMID: 25857741 DOI: 10.1111/iwj.12427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 01/03/2015] [Accepted: 01/24/2015] [Indexed: 12/18/2022] Open
Abstract
The present study aims to investigate the effects of mushroom beta glucan (MBG) on wound recovery in partial hepatectomy (PH) in Nile tilapia (Oreochromis niloticus) and in rat skin wound healing examination. Following PH, we focussed on the effects on liver repair ability using in vitro and in vivo tests. In vitro, we examined whether the MBG has an impact on liver cell proliferation, mainly through 3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide (MTT) assays and bromodeoxyuridine (BrdU) cell proliferation assay detection method. Results showed that MBG treatment was remarkable in enhancing cell proliferation of hepatocytes and in maintaining the cellular viability. Immunohistochemical staining to analyse Wnt/β-catenin signalling also showed that MBG has the effect of promoting cell proliferation of liver tissues after PH surgery.
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Affiliation(s)
- Chien-Mei Hsiao
- Institute of Fisheries Science, National Taiwan University, Taipei, Taiwan
| | - Yu-Sheng Wu
- Institute of Fisheries Science, National Taiwan University, Taipei, Taiwan
| | - Fan-Hua Nan
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
| | - Shih-Ling Huang
- Freshwater Aquaculture Research Center, Fisheries Research Institute, Council of Agriculture, Changhua, Taiwan
| | - Lynette Chen
- Oregon Health and Science University Hospital Oregon, Oregon, OR, USA
| | - Shiu-Nan Chen
- Institute of Fisheries Science, National Taiwan University, Taipei, Taiwan.,College of Life Science, National Taiwan University, Taipei, Taiwan
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174
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Mechanism of macrophage activation induced by polysaccharide from Cordyceps militaris culture broth. Carbohydr Polym 2015; 120:29-37. [DOI: 10.1016/j.carbpol.2014.11.059] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 09/22/2014] [Accepted: 11/28/2014] [Indexed: 11/21/2022]
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175
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Abou Mossallam AA, El Nahas SM, Mahfouz ER, Osman NM. Characterization of buffalo interleukin 8 (IL-8) and its expression in endometritis. J Genet Eng Biotechnol 2015; 13:71-77. [PMID: 30647569 PMCID: PMC6299738 DOI: 10.1016/j.jgeb.2014.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 12/07/2014] [Accepted: 12/23/2014] [Indexed: 11/25/2022]
Abstract
River buffalo (Bubalus bubalis bubalis) with a population over 135 million heads is an important livestock. Interleukin 8 (IL-8) is a member of the chemokine family and is an important chemoattractant for neutrophils associated with a wide variety of inflammatory diseases such as endometritis. Tissue samples from the mammary gland, uterus and ovary were obtained from river buffalo (Mediterranean type) with and without endometritis. Bacteriological examination showed the presence of both gram positive and negative in all buffalo with endometritis. RNA extraction and complementary DNA (cDNA) synthesis were conducted from all tissues. Specific primer for IL8 full coding regions was designed using known cDNA sequences of Bubalus bubalis, Genbank accession number AY952930.1. IL-8 gene expression was investigated in buffalo tissues. Expression of IL-8 in buffalo with endometritis was found to increase significantly over buffalo without endometritis only in the uterus (P = 0.0159). PCR products from uterus tissues (target organs) of buffalo with and without endometritis, were purified and sequenced. No polymorphic sites were detected in the investigated samples. IL-8 cDNA nucleotide sequences of buffalo with and without endometritis were 100% identical (accession number JX413057). Buffalo IL8 cDNAs were compared with corresponding sequences of member of subfamily Bovinae (buffalo and cattle) and subfamily Caprinae (sheep and goat). IL-8 species specific differences were identified.
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Affiliation(s)
- Ahlam A Abou Mossallam
- Department of Cell Biology, Genetic Engineering Division, National Research Center, Dokki, Giza, Egypt
| | - Soheir M El Nahas
- Department of Cell Biology, Genetic Engineering Division, National Research Center, Dokki, Giza, Egypt
| | - Eman R Mahfouz
- Department of Cell Biology, Genetic Engineering Division, National Research Center, Dokki, Giza, Egypt
| | - Noha M Osman
- Department of Cell Biology, Genetic Engineering Division, National Research Center, Dokki, Giza, Egypt.,Department of Molecular and Computational Biology, University of Southern California, 1050 Childs Way RRI 316, Los Angeles, CA 90089, USA
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176
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Jung JY, Shin JS, Rhee Y, Cho CW, Lee MK, Hong HD, Lee KT. In vitro
and in vivo
immunostimulatory activity of an exopolysaccharide-enriched fraction from Bacillus subtilis. J Appl Microbiol 2015; 118:739-52. [DOI: 10.1111/jam.12742] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/24/2014] [Accepted: 12/22/2014] [Indexed: 12/15/2022]
Affiliation(s)
- J.-Y. Jung
- Department of Pharmaceutical Biochemistry; College of Pharmacy; Kyung Hee University; Seoul Republic of Korea
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
| | - J.-S. Shin
- Department of Pharmaceutical Biochemistry; College of Pharmacy; Kyung Hee University; Seoul Republic of Korea
- Reactive Oxygen Species Medical Research Center; School of Medicine; Kyung Hee University; Seoul Republic of Korea
| | - Y.K. Rhee
- Korea Food Research Institute; Seongnam Republic of Korea
| | - C.-W. Cho
- Korea Food Research Institute; Seongnam Republic of Korea
| | - M.-K. Lee
- Korea Food Research Institute; Seongnam Republic of Korea
| | - H.-D. Hong
- Korea Food Research Institute; Seongnam Republic of Korea
| | - K.-T. Lee
- Department of Pharmaceutical Biochemistry; College of Pharmacy; Kyung Hee University; Seoul Republic of Korea
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
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177
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Nanoparticle and polysaccharide conjugate: A potential candidate vaccine to improve immunological stimuli. Int J Biol Macromol 2015; 72:1254-64. [DOI: 10.1016/j.ijbiomac.2014.10.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 10/10/2014] [Accepted: 10/13/2014] [Indexed: 01/28/2023]
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178
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Galactans and Its Applications. POLYSACCHARIDES 2015. [DOI: 10.1007/978-3-319-16298-0_69] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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179
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de Jesus Raposo MF, de Morais AMMB, de Morais RMSC. Bioactivity and Applications of Polysaccharides from Marine Microalgae. POLYSACCHARIDES 2015. [DOI: 10.1007/978-3-319-16298-0_47] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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180
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Cho CW, Han CJ, Rhee YK, Lee YC, Shin KS, Shin JS, Lee KT, Hong HD. Cheonggukjang polysaccharides enhance immune activities and prevent cyclophosphamide-induced immunosuppression. Int J Biol Macromol 2015; 72:519-25. [PMID: 25236609 DOI: 10.1016/j.ijbiomac.2014.09.010] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 08/21/2014] [Accepted: 09/08/2014] [Indexed: 01/22/2023]
Abstract
Cheonggukjang is a traditional Korean fermentation product prepared from soybean that is reported to have various biological functions. We previously reported that the polysaccharides from Cheonggukjang (PSCJ) have immunostimulatory activities in RAW 264.7 macrophages and primary cultured splenocytes. In this study, the immunostimulatory activities of the PSCJ were investigated further using various experimental models such as in vitro, ex vivo, and in vivo. The PSCJ was able to stimulate the complement system (ITCH50: 30.6%). In primary cultured mouse peritoneal macrophages, the PSCJ was found to significantly increase nitric oxide and immunostimulatory cytokines (IL-6 and IL-12) production in a concentration-dependent manner (1-100 μg/mL). In the normal mice model, the oral administration of the PSCJ increased the weight of spleen (p < 0.05 at 100 and 200 mg/kg) and improved the phagocytic rates of peritoneal macrophages (p < 0.05 at 200 mg/kg) and lymphocytes proliferation (p < 0.05 at 100 and 200 mg/kg). Similarly, the PSCJ markedly restored the decreased lymphocytes proliferation (p < 0.01 at 200 mg/kg), natural killer cell activity (p < 0.01 at 200mg/kg), and white blood cell count (p<0.01 at 100 and 200 mg/kg) in the cyclophosphamide-induced immunosuppressed mice model. These results suggest that the PSCJ could be utilized as an effective immunostimulatory agent.
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Affiliation(s)
- Chang-Won Cho
- Division of Strategic Food Research, Korea Food Research Institute, Gyeonggi 463-746, Republic of Korea
| | - Chun-ji Han
- Department of Preventive Medicine, Yanbian University, Jilin 133002, China
| | - Young Kyoung Rhee
- Division of Strategic Food Research, Korea Food Research Institute, Gyeonggi 463-746, Republic of Korea
| | - Young-Chul Lee
- Division of Strategic Food Research, Korea Food Research Institute, Gyeonggi 463-746, Republic of Korea
| | - Kwang-Soon Shin
- Department of Food Science and Biotechnology, Kyonggi University, Gyeonggi 443-760, Republic of Korea
| | - Ji-Sun Shin
- Department of Pharmaceutical Biochemistry, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Hee-Do Hong
- Division of Strategic Food Research, Korea Food Research Institute, Gyeonggi 463-746, Republic of Korea.
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181
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Cheng J, Zhou ZW, Sheng HP, He LJ, Fan XW, He ZX, Sun T, Zhang X, Zhao RJ, Gu L, Cao C, Zhou SF. An evidence-based update on the pharmacological activities and possible molecular targets of Lycium barbarum polysaccharides. DRUG DESIGN DEVELOPMENT AND THERAPY 2014; 9:33-78. [PMID: 25552899 PMCID: PMC4277126 DOI: 10.2147/dddt.s72892] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lycium barbarum berries, also named wolfberry, Fructus lycii, and Goji berries, have been used in the People’s Republic of China and other Asian countries for more than 2,000 years as a traditional medicinal herb and food supplement. L. barbarum polysaccharides (LBPs) are the primary active components of L. barbarum berries and have been reported to possess a wide array of pharmacological activities. Herein, we update our knowledge on the main pharmacological activities and possible molecular targets of LBPs. Several clinical studies in healthy subjects show that consumption of wolfberry juice improves general wellbeing and immune functions. LBPs are reported to have antioxidative and antiaging properties in different models. LBPs show antitumor activities against various types of cancer cells and inhibit tumor growth in nude mice through induction of apoptosis and cell cycle arrest. LBPs may potentiate the efficacy of lymphokine activated killer/interleukin-2 combination therapy in cancer patients. LBPs exhibit significant hypoglycemic effects and insulin-sensitizing activity by increasing glucose metabolism and insulin secretion and promoting pancreatic β-cell proliferation. They protect retinal ganglion cells in experimental models of glaucoma. LBPs protect the liver from injuries due to exposure to toxic chemicals or other insults. They also show potent immunoenhancing activities in vitro and in vivo. Furthermore, LBPs protect against neuronal injury and loss induced by β-amyloid peptide, glutamate excitotoxicity, ischemic/reperfusion, and other neurotoxic insults. LBPs ameliorate the symptoms of mice with Alzheimer’s disease and enhance neurogenesis in the hippocampus and subventricular zone, improving learning and memory abilities. They reduce irradiation- or chemotherapy-induced organ toxicities. LBPs are beneficial to male reproduction by increasing the quality, quantity, and motility of sperm, improving sexual performance, and protecting the testis against toxic insults. Moreover, LBPs exhibit hypolipidemic, cardioprotective, antiviral, and antiinflammatory activities. There is increasing evidence from preclinical and clinical studies supporting the therapeutic and health-promoting effects of LBPs, but further mechanistic and clinical studies are warranted to establish the dose–response relationships and safety profiles of LBPs.
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Affiliation(s)
- Jiang Cheng
- Department of Neurology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, People's Republic of China ; Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL, USA
| | - Zhi-Wei Zhou
- Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL, USA
| | - Hui-Ping Sheng
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, People's Republic of China
| | - Lan-Jie He
- Department of Endocrinology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, People's Republic of China
| | - Xue-Wen Fan
- Department of Neurology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, People's Republic of China
| | - Zhi-Xu He
- Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center and Sino-US Joint Laboratory for Medical Sciences, Guiyang Medical University, Guiyang, Guizhou, People's Republic of China
| | - Tao Sun
- Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan, Ningxia, People's Republic of China
| | - Xueji Zhang
- Research Center for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing, People's Republic of China
| | - Ruan Jin Zhao
- Center for Traditional Chinese Medicine, Sarasota, FL, USA
| | - Ling Gu
- School of Biology and Chemistry, University of Pu'er, Pu'er, Yunnan, People's Republic of China
| | - Chuanhai Cao
- Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL, USA
| | - Shu-Feng Zhou
- Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL, USA ; Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center and Sino-US Joint Laboratory for Medical Sciences, Guiyang Medical University, Guiyang, Guizhou, People's Republic of China
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182
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Savitha Prashanth MR, Shruthi RR, Muralikrishna G. Immunomodulatory activity of purified arabinoxylans from finger millet (Eleusine coracana, v. Indaf 15) bran. Journal of Food Science and Technology 2014; 52:6049-54. [PMID: 26345027 DOI: 10.1007/s13197-014-1664-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/13/2014] [Accepted: 11/25/2014] [Indexed: 12/18/2022]
Abstract
Biological activities of alkali extracted (Barium hydroxide: BE-480 kDa, Potassium hydroxide: KE1-1080 and KE2-40 kDa), purified arabinoxylans (AX) from the finger millet bran varying in their molecular weight, phenolic acid content, arabinose to xylose ratios were evaluated for their immune-stimulatory activities using murine lymphocytes and peritoneal exudate macrophages. All three purified AX displayed significant (p < 0.001) mitogenic activity and activation of macrophages including phagocytosis. Among these BE has shown higher enhancing lymphocyte proliferation (>2 fold) and macrophage phagocytosis than KE1 and KE2. The above results clearly documented that the immunostimulatory activity of arabinoxylans is directly proportional to the amount of ferulic acid content (0.11 mg/100 g), whereas molecular weight as well as arabinose/xylose ratio, did not have any bearing. Purified AX from the finger millet bran can be explored as a potent natural immunomodulator.
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Affiliation(s)
- M R Savitha Prashanth
- Department of Biochemistry and Nutrition, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka India
| | - R R Shruthi
- Department of Biochemistry and Nutrition, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka India
| | - G Muralikrishna
- Department of Biochemistry and Nutrition, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka India
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183
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Jacob JP, Pescatore AJ. Barley β-glucan in poultry diets. ANNALS OF TRANSLATIONAL MEDICINE 2014; 2:20. [PMID: 25332996 DOI: 10.3978/j.issn.2305-5839.2014.01.02] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 02/20/2014] [Indexed: 11/14/2022]
Abstract
There has been an increased interest in the use of immunomodulators as substitutes for antibiotics in food animal production. Beta-glucans from yeast and fungi may be ideal substitutes because of their positive effects on the avian immune system without adversely affecting poultry performance. Barley β-glucans, however, have not shown this potential due to the adverse effects dietary inclusion of barley has on poultry performance.
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Affiliation(s)
- Jacqueline P Jacob
- Animal and Food Sciences Department, University of Kentucky, Lexington, Kentucky 40546-0215, USA
| | - Anthony J Pescatore
- Animal and Food Sciences Department, University of Kentucky, Lexington, Kentucky 40546-0215, USA
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184
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Modulation of intestinal epithelial cell proliferation, migration, and differentiation in vitro by Astragalus polysaccharides. PLoS One 2014; 9:e106674. [PMID: 25157577 PMCID: PMC4144960 DOI: 10.1371/journal.pone.0106674] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 08/06/2014] [Indexed: 02/06/2023] Open
Abstract
Previous studies have shown that Astragalus polysaccharides (APS) can be used to treat general gastrointestinal disturbances including intestinal mucosal injury. However, the mechanism by which APS mediate this effect is unclear. In the present study, the effects of APS on proliferation, migration, and differentiation of intestinal epithelial cells (IEC-6) were assessed using an in vitro wounding model and colorimetric thiazolyl blue (MTT) assays. The effect of APS on IEC-6 cell differentiation was observed using a light microscope and scanning electron microscope, and the expression of differentiation-specific markers of IEC-6 cells, such as cytokeratin 18 (CK18), alkaline phosphatase (ALP), tight junction protein ZO-2, and sucrase-isomaltase (SI), was determined by immunofluorescence assay (IFA) and real-time PCR. In addition, APS-induced signaling pathways in IEC-6 cells were characterized. Our results indicated that APS significantly enhance migration and proliferation of IEC-6 cells in vitro. APS-treated IEC-6 cells have numerous microvilli on their apical surface and also highly express CK18, ALP, ZO-2, and SI. Moreover, APS-treated IEC-6 cells, in which the activity and expression level of ornithine decarboxylase (ODC) were significantly elevated, also exhibited an increase in cellular putrescine, whereas no significant increase in TGF-β levels was observed. These findings suggest that APS may enhance intestinal epithelial cell proliferation, migration, and differentiation in vitro by stimulating ODC gene expression and activity and putrescine production, independent of TGF-β. Exogenous administration of APS may provide a new approach for modulating intestinal epithelial wound restitution in vivo.
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185
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Ficus carica polysaccharides promote the maturation and function of dendritic cells. Int J Mol Sci 2014; 15:12469-79. [PMID: 25026176 PMCID: PMC4139854 DOI: 10.3390/ijms150712469] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/25/2014] [Accepted: 03/20/2014] [Indexed: 12/20/2022] Open
Abstract
Various polysaccharides purified from plants are considered to be biological response modifiers and have been shown to enhance immune responses. Ficus carica L. is a Chinese traditional plant and has been widely used in Asian countries for its anti-tumor properties. Ficus carica polysaccharides (FCPS), one of the most essential and effective components in Ficus carica L., have been considered to be a beneficial immunomodulator and may be used in immunotherapy. However, the immunologic mechanism of FCPS is still unclear. Dectin-1 is a non-toll-like pattern recognition receptor, predominately expressed on dendritic cells (DCs). Activation of DCs through dectin-1 signaling can lead to the maturation of DC, thus inducing both innate and adaptive immune responses against tumor development and microbial infection. In our study, we found that FCPS could effectively stimulate DCs, partially through the dectin-1/Syk pathway, and promote their maturation, as shown by the up-regulation of CD40, CD80, CD86, and major histocompatibility complex II (MHCII). FCPS also enhanced the production of cytokines by DCs, including IL-12, IFN-γ, IL-6, and IL-23. Moreover, FCPS-treated DCs showed an enhanced capability to stimulate T cells and promote T cell proliferation. Altogether, these results demonstrate that FCPS are able to activate and maturate DCs, thereby up-regulating the immunostimulatory capacity of DCs, which leads to enhanced T cell responses.
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186
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Immunomodulating activity of Aronia melanocarpa polyphenols. Int J Mol Sci 2014; 15:11626-36. [PMID: 24983479 PMCID: PMC4139804 DOI: 10.3390/ijms150711626] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 06/18/2014] [Accepted: 06/20/2014] [Indexed: 11/17/2022] Open
Abstract
The immunomodulating effects of isolated proanthocyanidin-rich fractions, procyanidins C1, B5 and B2 and anthocyanins of Aronia melanocarpa were investigated. In this work, the complement-modulating activities, the inhibitory activities on nitric oxide (NO) production in LPS-induced RAW 264.7 macrophages and effects on cell viability of these polyphenols were studied. Several of the proanthocyanidin-rich fractions, the procyanidins C1, B5 and B2 and the cyanidin aglycone possessed strong complement-fixing activities. Cyanidin 3-glucoside possessed stronger activity than the other anthocyanins. Procyanidins C1, B5 and B2 and proanthocyanidin-rich fractions having an average degree of polymerization (PD) of 7 and 34 showed inhibitory activities on NO production in LPS-stimulated RAW 264.7 mouse macrophages. All, except for the fraction containing proanthocyanidins with PD 34, showed inhibitory effects without affecting cell viability. This study suggests that polyphenolic compounds of A. melanocarpa may have beneficial effects as immunomodulators and anti-inflammatory agents.
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187
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Courtois A, Berthou C, Guézennec J, Boisset C, Bordron A. Exopolysaccharides isolated from hydrothermal vent bacteria can modulate the complement system. PLoS One 2014; 9:e94965. [PMID: 24736648 PMCID: PMC3988086 DOI: 10.1371/journal.pone.0094965] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 03/20/2014] [Indexed: 11/19/2022] Open
Abstract
The complement system is involved in the defence against bacterial infection, or in the elimination of tumour cells. However, disturbances in this system contributes to the pathogenesis of various inflammatory diseases. The efficiency of therapeutic anti-tumour antibodies is enhanced when the complement system is stimulated. In contrast, cancer cells are able to inhibit the complement system and thus proliferate. Some marine molecules are currently being developed as new drugs for use in humans. Among them, known exopolyssacharides (EPSs) generally originate from fungi, but few studies have been performed on bacterial EPSs and even fewer on EPSs extracted from deep-sea hydrothermal vent microbes. For use in humans, these high molecular weight EPSs must be depolymerised. Furthermore, the over-sulphation of EPSs can modify their biological activity. The aim of this study was to investigate the immunodulation of the complement system by either native or over-sulphated low molecular weight EPSs isolated from vent bacteria in order to find pro or anti-activators of complement.
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Affiliation(s)
- Anthony Courtois
- Biotechnology and Marine Molecules Laboratory, IFREMER, Brest, France
- Cellular Therapy and Immunobiology of Cancer Laboratory, University Hospital of Brest, Brest, France
| | - Christian Berthou
- Cellular Therapy and Immunobiology of Cancer Laboratory, University Hospital of Brest, Brest, France
| | - Jean Guézennec
- Biotechnology and Marine Molecules Laboratory, IFREMER, Brest, France
| | - Claire Boisset
- Biotechnology and Marine Molecules Laboratory, IFREMER, Brest, France
| | - Anne Bordron
- Cellular Therapy and Immunobiology of Cancer Laboratory, University Hospital of Brest, Brest, France
- * E-mail:
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188
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Ang HY, Subramani T, Yeap SK, Omar AR, Ho WY, Abdullah MP, Alitheen NB. Immunomodulatory effects of Potentilla indica and Dendrophthoe pentandra on mice splenocytes and thymocytes. Exp Ther Med 2014; 7:1733-1737. [PMID: 24926376 PMCID: PMC4043603 DOI: 10.3892/etm.2014.1657] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 02/13/2014] [Indexed: 11/15/2022] Open
Abstract
Immunomodulators are agents that are able to stimulate or inhibit the immune response. The leaf extracts from Potentilla indica and Dendrophthoe pentandra were analyzed in vitro for immunomodulatory activity and an MTT colorimetric assay was conducted to determine the proliferation of mice splenocytes and thymocytes. A bromodeoxyuridine assay was performed to analyze DNA synthesis and the Trypan blue exclusion method was conducted to evaluate the changes in total cell population. The results indicated that treatment with P. indica and D. pentandra produced a time- and dose-dependent increase in cell viability and proliferation. Following 72 h of treatment with P. indica and D. pentandra, thymocyte proliferation was augmented by 18 and 41%, respectively and splenocyte proliferation increased by 35 and 42%, respectively, when compared with untreated cells. The present study demonstrated that these extracts may act as potential immunostimulants and, thus, represent an alternative source of immunomodulatory compounds for the treatment of human immune-mediated diseases.
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Affiliation(s)
- Hui Ying Ang
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Malaysia
| | - Tamilselvan Subramani
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Malaysia
| | - Swee Keong Yeap
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Abdul Rahman Omar
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Wan Yang Ho
- The University of Nottingham Malaysia Campus, Semenyih, Selangor 43500, Malaysia
| | - Mohd Puad Abdullah
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Malaysia
| | - Noorjahan Banu Alitheen
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Malaysia
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189
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Silva AKA, Letourneur D, Chauvierre C. Polysaccharide nanosystems for future progress in cardiovascular pathologies. Theranostics 2014; 4:579-91. [PMID: 24723980 PMCID: PMC3982129 DOI: 10.7150/thno.7688] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 11/16/2013] [Indexed: 11/09/2022] Open
Abstract
Natural polysaccharides have received a lot of attention in the biomedical field. Indeed, sources of polysaccharides, extracted or produced from plants, bacteria, fungi or algae, are diverse and renewable. Moreover, recent progresses in polysaccharide chemistry and nanotechnologies allow elaborating new dedicated nanosystems. Polysaccharide-based nanosystems may be designed for interacting in several biological processes. In particular, the atherothrombotic pathology is highly concerned by polysaccharide-mediated recognition. Atherothrombotic diseases, regardless of the anatomical localization, remain the main causes of morbidity and mortality in the industrialized world. This review intends to provide an overview on polysaccharide-based nanosystems as drug delivery systems and targeted contrast agents for molecular imaging with an emphasis on the treatment and imaging of cardiovascular pathologies.
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Affiliation(s)
| | | | - Cédric Chauvierre
- Inserm, U698, Cardiovascular Bio-Engineering; X. Bichat hospital, 46 rue H. Huchard, F-75018, Paris, France; Université Paris 13, Sorbonne Paris Cité, F-93430, Villetaneuse, France
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192
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Huyan T, Li Q, Yang H, Jin ML, Zhang MJ, Ye LJ, Li J, Huang QS, Yin DC. Protective effect of polysaccharides on simulated microgravity-induced functional inhibition of human NK cells. Carbohydr Polym 2013; 101:819-27. [PMID: 24299844 DOI: 10.1016/j.carbpol.2013.10.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 09/14/2013] [Accepted: 10/05/2013] [Indexed: 10/26/2022]
Abstract
Polysaccharides are believed to be strong immunostimulants that can promote the proliferation and activity of T cells, B cells, macrophages and natural killer (NK) cells. This study aimed to investigate the effects of five polysaccharides (Grifola frondosa polysaccharide (GFP), lentinan (LNT), G. lucidum polysaccharide (GLP), Lycium barbarum polysaccharide (LBP) and yeast glucan (YG)) on primary human NK cells under normal or simulated microgravity (SMG) conditions. Our results demonstrated that polysaccharides markedly promoted the cytotoxicity of NK cells by enhancing IFN-γ and perforin secretion and increasing the expression of the activating receptor NKp30 under normal conditions. Meanwhile polysaccharides can enhance NK cell function under SMG conditions by restoring the expression of the activating receptor NKG2D and reducing the early apoptosis and late apoptosis/necrosis. Moreover, the antibody neutralization test showed that CR3 may be the critical receptor involved in polysaccharides induced NK cells activation. These findings indicated that polysaccharides may be used as immune regulators to promote the health of the public and astronauts during space missions.
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Affiliation(s)
- Ting Huyan
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi Xilu, Xi'an 710072, Shaanxi, PR China; School of Materials Science and Engineering, Northwestern Polytechnical University, 127 Youyi Xilu, Xi'an 710072, Shaanxi, PR China
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Role of Rheum Polysaccharide in the cytokines produced by peripheral blood monocytes in TLR4 mediated HLA-B27 associated AAU. BIOMED RESEARCH INTERNATIONAL 2013; 2013:431232. [PMID: 24151602 PMCID: PMC3787570 DOI: 10.1155/2013/431232] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 08/05/2013] [Indexed: 01/24/2023]
Abstract
Purpose. To evaluate the effect of a traditional Chinese medicine, Rheum Polysaccharide (RP), on the in vitro production of tumor necrosis factor alpha (TNF-α) and interleukin-10 (IL-10) by lipopolysaccharide- (LPS-)stimulated human monocytes from HLA-B27 associated acute anterior uveitis patients of convalescence stage. Method. PBMC samples were isolated from 10 HLA-B27 associated acute anterior uveitis, incubated, respectively, and divided into 4 groups as follows: (1) controls, PBS was added in final concentration of 1 mg·L−1, (2) stimulated by LPS, LPS was added in final concentration of 1 mg·L−1, (3) stimulated by LPS + HTA125, 30 minutes before the adding of LPS in final concentration of 1 mg·L−1, the final concentration of 5 mg·L−1 of the HTA125 was added, and (4) stimulated by LPS + RP, 30 minutes before the adding of LPS in final concentration 1 mg·L−1, the final concentration 100 mg·L−1 of the RP was added. Supernatants were used to quantify the amounts of TNF-α and IL-10 released in time course using enzyme-linked immunosorbent assay (ELISA). Result. After stimulated by lps, the concentrations of TNF-α and IL-10 in culture supernatants of patients are significantly higher than control group at all time points (P < 0.01). Blockage of TLR-4 by HTA125 can decrease the production of TNF-α and IL-10 compared with lps group (P < 0.01, except at 4 h group of IL-10). Concentration of TNF-α and IL-10 also decreases in the LPS + RP group (P < 0.01) but not so significantly as in the LPS + HTA125 group. Conclusion. As anti-TLR4 monoclonal antibodies, rheum Polysaccharide can also inhibit the secretion of cytokines produced by monocytes from HLA-B27 positive AAU patients of convalescence stage.
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194
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Vannucci L, Krizan J, Sima P, Stakheev D, Caja F, Rajsiglova L, Horak V, Saieh M. Immunostimulatory properties and antitumor activities of glucans (Review). Int J Oncol 2013; 43:357-64. [PMID: 23739801 PMCID: PMC3775562 DOI: 10.3892/ijo.2013.1974] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 05/17/2013] [Indexed: 12/25/2022] Open
Abstract
New foods and natural biological modulators have recently become of scientific interest in the investigation of the value of traditional medical therapeutics. Glucans have an important part in this renewed interest. These fungal wall components are claimed to be useful for various medical purposes and they are obtained from medicinal mushrooms commonly used in traditional Oriental medicine. The immunotherapeutic properties of fungi extracts have been reported, including the enhancement of anticancer immunity responses. These properties are principally related to the stimulation of cells of the innate immune system. The discovery of specific receptors for glucans on dendritic cells (dectin-1), as well as interactions with other receptors, mainly expressed by innate immune cells (e.g., Toll-like receptors, complement receptor-3), have raised new attention toward these products as suitable therapeutic agents. We briefly review the characteristics of the glucans from mycelial walls as modulators of the immunity and their possible use as antitumor treatments.
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Affiliation(s)
- Luca Vannucci
- Laboratory of Immunotherapy, Department of Immunology and Gnotobiology, Institute of Microbiology, Academy of Sciences of Czech Republic, v.v.i., 142 20 Prague 4, Czech Republic.
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195
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Sassaki GL, Rattmann YD, Santana-Filho AP, Riter DS, Iagher F, Trindade ES, da Silva MD, Santos ARS, de Souza LM, Iacomini M, Gorin PAJ. Galactofuranosyl glycosides: immunomodulatory effects on macrophages and in vivo enhancement of lethality on sepsis. Chem Biol Interact 2013; 205:29-37. [PMID: 23756126 DOI: 10.1016/j.cbi.2013.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 05/09/2013] [Accepted: 05/30/2013] [Indexed: 02/08/2023]
Abstract
Galactofuranoside derivatives were synthesised by the classic Fischer glycosydation method, and their immune modulation properties were studied in vitro and in vivo. NMR spectroscopic and ESI-MS analyses confirmed the purity and authenticity of all derivatives. Their phagocyte capacities were tested in resident macrophages. Methyl β-galactofuranoside (GFB-Me) and n-octyl β-galactofuranoside (GFB-O) had an immune stimulant effect at 25μmolml(-1) with an enhancement of 35.12%±0.06 SD and 17.49%±0.11 SD, respectively, but Methyl α-galactofuranoside (GFA-Me) and n-octyl α-galactofuranoside (GFA-O) gave a low immune response. Methyl α-galactofuranoside 5,6-O-isopropylidene (GFA-IP) and Methyl β-galactofuranoside 5,6-O-isopropylidene (GFB-IP) had negative values relative to the control group of minus 4.96%±0.10 SD and -40.72%±0.07 SD, respectively. Furthermore, GFB-Me and GFB-Me-IP were evaluated in vivo on the lethality induced by cecal ligation and puncture. Cytokine levels and iNOS expression were determined and correlated to mortality data. The results showed that the free HO-5 and HO-6 and the β-configuration are essential for the induction of phagocytic activity by the galactofuranosyl units. The methyl β-galactofuranosides also enhanced lethality during sepsis, increasing the levels of pro-inflammatory cytokines and iNOS expression.
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Affiliation(s)
- Guilherme L Sassaki
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Curitiba, PR, Brazil.
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196
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Meng LZ, Lv GP, Hu DJ, Cheong KL, Xie J, Zhao J, Li SP. Effects of polysaccharides from different species of Dendrobium (Shihu) on macrophage function. Molecules 2013; 18:5779-91. [PMID: 23685935 PMCID: PMC6269656 DOI: 10.3390/molecules18055779] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 05/03/2013] [Accepted: 05/13/2013] [Indexed: 11/16/2022] Open
Abstract
Dendrobium spp. are precious medicinal plants, used in China for thousands of years as health foods and nutrients. Polysaccharides are the main effective ingredients in Dendrobium plants. In this study, the chemical characteristics and the effects of crude polysaccharides (CPs) from five species of Dendrobium on macrophage function were investigated and compared in vitro for the first time. Chemical characteristic studies showed that CPs from different species of Dendrobium were diverse, displaying widely varied Mw distributions and molar ratios of monosaccharides. Their effects on macrophage functions, such as promoting phagocytosis, release of NO and cytokines IL-1α, IL-6, IL-10 and TNF-α, were also different. Moreover, CPs from D. officinale, especially collected from Yunnan Province, exerted the strongest immunomodulatory activities and could be explored as a novel potential functional food. The diverse chemical characteristics of CPs from different species of Dendrobium might contribute to their varied effects on macrophage functions, which should be further investigated.
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Affiliation(s)
| | | | | | | | | | - Jing Zhao
- Authors to whom correspondence should be addressed; E-Mail: or (S.-P.L.); (J.Z.); Tel.: +853-8397-4692 (S.-P.L.); Fax: +853-2884-1358 (J.Z. & S.-P.L.)
| | - Shao-Ping Li
- Authors to whom correspondence should be addressed; E-Mail: or (S.-P.L.); (J.Z.); Tel.: +853-8397-4692 (S.-P.L.); Fax: +853-2884-1358 (J.Z. & S.-P.L.)
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197
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Nishitani Y, Zhang L, Yoshida M, Azuma T, Kanazawa K, Hashimoto T, Mizuno M. Intestinal anti-inflammatory activity of lentinan: influence on IL-8 and TNFR1 expression in intestinal epithelial cells. PLoS One 2013; 8:e62441. [PMID: 23630633 PMCID: PMC3632531 DOI: 10.1371/journal.pone.0062441] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 03/21/2013] [Indexed: 01/17/2023] Open
Abstract
Inflammatory bowel disease (IBD) is characterized by chronic inflammation of the gastrointestinal tract. It is unknown whether β-1,3;1,6-glucan can induce immune suppressive effects. Here, we study intestinal anti-inflammatory activity of Lentinula edodes-derived β-1,3;1,6-glucan, which is known as lentinan. Dextran sulfate sodium (DSS)-induced colitis mice were used to elucidate effects of lentinan in vivo. In the cellular level assessment, lentinan was added into a co-culture model consisting of intestinal epithelial Caco-2 cells and LPS-stimulated macrophage RAW264.7 cells. Ligated intestinal loop assay was performed for assessing effects of lentinan on intestinal epithelial cells (IECs) in vivo. Oral administration of lentinan (100 µg/mouse) significantly ameliorated DSS-induced colitis in body weight loss, shortening of colon lengths, histological score, and inflammatory cytokine mRNA expression in inflamed tissues. Lentinan reduced interleukin (IL)-8 mRNA expression and nuclear factor (NF)-κB activation in Caco-2 cells without decreasing of tumor necrosis factor (TNF)-α production from RAW264.7 cells. Flow cytometric analysis revealed that surface levels of TNF receptor (TNFR) 1 were decreased by lentinan treatment. A clathrin-mediated endocytosis inhibitor, monodansylcadaverine, canceled lentinan inhibition of IL-8 mRNA expression. Moreover, lentinan inhibited TNFR1 expression in Caco-2 cells in both protein and mRNA level. Lentinan also inhibited TNFR1 mRNA expression in mouse IECs. These results suggest that lentinan exhibits intestinal anti-inflammatory activity through inhibition of IL-8 mRNA expression associated with the inhibition of NF-κB activation which is triggered by TNFR1 endocytosis and lowering of their expression in IECs. Lentinan may be effective for the treatment of gut inflammation including IBD.
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Affiliation(s)
- Yosuke Nishitani
- Team of Health Bioscience, Organization of Advanced Science and Technology, Kobe University, Kobe, Japan
| | - Ling Zhang
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Masaru Yoshida
- Gastroenterology Division, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
- The Integrated Center for Mass Spectrometry, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Takeshi Azuma
- Gastroenterology Division, Department of Internal Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Kazuki Kanazawa
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Takashi Hashimoto
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Masashi Mizuno
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
- * E-mail:
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198
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Scientific Opinion on the substantiation of a health claim related to Yestimun® and defence against pathogens in the upper respiratory tract pursuant to Article 13(5) of Regulation (EC) No 1924/2006. EFSA J 2013. [DOI: 10.2903/j.efsa.2013.3159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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199
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Natural alternatives to in-feed antibiotics in pig production: can immunomodulators play a role? Animal 2012; 3:1644-61. [PMID: 22443549 DOI: 10.1017/s1751731109004236] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
As a result of the European ban of in-feed growth-promoting antibiotics, new strategies are being developed to increase the resistance to disease in farm animals. In pig production, this is of particular importance during the weaning transition when piglets are subjected to major stressful events, making them highly sensitive to digestive disorders. At this time, the development of both innate and adaptive immunity at the mucosal surface is critical in preventing the potential harmful effects of intestinal pathogenic agents. Strategies aiming at stimulating natural host defences through the use of substances able to modulate immune functions have gained increasing interest in animal research, and different bioactive components a priori sharing those properties have been the subject of in vivo nutritional investigations in pig. Among these, yeast derivates (β-glucans and mannans) are able to interact with immune cells, particularly phagocytic cells. However, studies where they have been fed to pigs have shown inconsistent results, suggesting that their ability to target the sensitive immune cells through the oral route is questionable. The plant extracts, which would benefit from a positive image in the public opinion, have also been tested. However, due to a lack of data on the bioactive components of particular plants and the large diversity of species, it has proved difficult to prepare extracts of equivalent potency and thus, the literature on their influence on pig immunity remains inconclusive. In considering piglet immunity and health benefits, the most promising results to date have been obtained with spray-dried animal plasma, whose positive effects would be provided by specific antibodies and non-specific competition of some plasma components with bacteria for intestinal receptors. The major positive effect of spray-dried animal plasma is in reducing the infiltration of gut-associated lymphoid tissue by immune cells, which is likely to be the result of a decreased colonisation by potentially harmful bacteria. This review also highlights the limitations of some of the published in vivo studies on the immunomodulatory activity of certain feed additives. Among those, the lack of standardisation of extracts and the heterogeneity of piglet-rearing conditions (e.g. exposure to pathogens) are likely the most limiting.
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Lemieszek M, Rzeski W. Anticancer properties of polysaccharides isolated from fungi of the Basidiomycetes class. Contemp Oncol (Pozn) 2012; 16:285-9. [PMID: 23788896 PMCID: PMC3687424 DOI: 10.5114/wo.2012.30055] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 10/20/2011] [Accepted: 01/18/2012] [Indexed: 11/23/2022] Open
Abstract
Basidiomycete mushrooms represent a valuable source of biologically active compounds with anticancer properties. This feature is primarily attributed to polysaccharides and their derivatives. The anticancer potential of polysaccharides is linked to their origin, composition and chemical structure, solubility and method of isolation. Moreover, their activity can be significantly increased by chemical modifications. Anticancer effects of polysaccharides can be expressed indirectly (immunostimulation) or directly (cell proliferation inhibition and/or apoptosis induction). Among the wide range of polysaccharides with documented anticancer properties, lentinan, polysaccharide-K (PSK) and schizophyllan deserve special attention. These polysaccharides for many years have been successfully applied in cancer treatment and their mechanism of action is the best known.
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Affiliation(s)
- Marta Lemieszek
- Department of Medical Biology, Institute of Agricultural Medicine, Lublin, Poland
| | - Wojciech Rzeski
- Department of Medical Biology, Institute of Agricultural Medicine, Lublin, Poland
- Department of Virology and Immunology, UMCS Lublin, Poland
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