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Zou X, Shen M, Li J, Sun P, Zhong X, Yang K. Isolation, structure characterization and in vitro immune-enhancing activity of a glucan from the peels of stem lettuce (Lactuca sativa). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:2097-2109. [PMID: 38009323 DOI: 10.1002/jsfa.13166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/24/2023] [Accepted: 11/27/2023] [Indexed: 11/28/2023]
Abstract
BACKGROUND Stem lettuce is a medicinal and edible plant. The peels, accounting for 300-400 g kg-1 raw stem lettuce and containing polysaccharides 200 g kg-1 , are discarded as industrial waste, causing environment pollution and resource waste. RESULTS A polysaccharide named PPSL10-2 was obtained from the peels of stem lettuce after hot water extraction, and gradation with cascade ultrafiltration and purification using DEAE-Sepharose cellulose. The purity and molecular weight of PPSL10-2 is 96.10% and 2.2 × 104 Da respectively, as detected by high-performance gel permeation chromatography. PPSL10-2 was found to be an α-(1→4)-d-glucan that branched at O-6 with a terminal 1-linked α-d-Glcp as side chain, and devoid of helix conformation, which was characterized by monosaccharide composition analysis, Fourier-transform infrared spectroscopy, Congo red test, scanning electron microscopy, methylation analysis and NMR spectroscopy. Furthermore, PPSL10-2 exhibited potent immune-enhancing effect by improving proliferation and phagocytosis, promoting the secretion of nitric oxide and cytokines, as well as the expression of related genes in RAW264.7 macrophages. CONCLUSION The findings of the present study suggest that peels as an agricultural by-product of stem lettuce are good sources of polysaccharides, which could be developed as immunopotentiator for improving human health. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xianguo Zou
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou, China
| | - Mingjie Shen
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Jingjing Li
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Peilong Sun
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou, China
| | - Xianfeng Zhong
- School of Food Science and Engineering, Foshan University, Foshan, China
| | - Kai Yang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou, China
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2
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Characterization of Novel Exopolysaccharides from Enterococcus hirae WEHI01 and Its Immunomodulatory Activity. Foods 2022; 11:foods11213538. [DOI: 10.3390/foods11213538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/23/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Exopolysaccharide (EPS) from probiotic Enterococcus hirae WEHI01 was isolated and purified by anion exchange chromatography and gel chromatography, the results of which show that the EPS consists of four fractions, namely I01-1, I01-2, I01-3, and I01-4. As the main purification components, I01-2 and I01-4 were preliminarily characterized for their structure and their immunomodulatory activity was explored. The molecular weight of I01-2 was 2.28 × 104 Da, which consists mainly of galactose, and a few other sugars including glucose, arabinose, mannose, xylose, fucose, and rhamnose, while the I01-4 was composed of galactose only and has a molecular weight of 2.59 × 104 Da. Furthermore, the results of an evaluation of immunomodulatory activity revealed that I01-2 and I01-4 could improve the viability of macrophage cells, improve phagocytosis, boost NO generation, and encourage the release of cytokines including TNF-α and IL-6 in RAW 264.7 macrophages. These results imply that I01-2 and I01-4 could improve macrophage-mediated immune responses and might be useful in the production of functional food and medications.
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Bahrami G, Izadi B, Miraghaee SS, Mohammadi B, Hatami R, Sajadimajd S, Batooie N. Antidiabetic potential of the isolated fractions from the plants of Rosaceae family in streptozotocin-induced diabetic rats. Res Pharm Sci 2021; 16:505-515. [PMID: 34522198 PMCID: PMC8407159 DOI: 10.4103/1735-5362.323917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/19/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022] Open
Abstract
Background and purpose: Diabetes is a group of multifactorial disorders characterized by chronic-elevated blood glucose levels (hyperglycemia). Natural remedies are used as alternative medications to treat diabetes. Here, we tested the protective effect of the plant extracts of the Rosaceae family on improving insulin secretion and repairing the pancreatic beta cells in diabetic rats. Experimental approach: The oligosaccharide fraction was isolated from the Rosaceae family of herbs. LC-MS/MS was applied to characterize the isolated fractions. The male Wistar rats were randomly divided into six groups, 10 each, including the control group with no intervention, diabetic rats without treatment, diabetic rats that received the extract of Malus domestica (apple), Cydonia oblonga (quince), Prunus persica (nectarine), and Prunus persica (peach), separately. Rats were monitored for the weight, fasting plasma glucose, and insulin levels. The effect of extracts in streptozotocin (STZ)-induced diabetic rats on the pancreatic islets was evaluated by morphometric analysis. Findings/Results: LC-MS/MS results indicated a similar mass spectrum of isolated fractions from nectarine and peach with Rosa canina. Oral administration of nectarine and peach extracts to STZ-induced diabetic rats showed restoration of blood glucose levels to normal levels with a concomitant increase in insulin levels. Morphometric analysis of pancreatic sections revealed the increase in number, diameter, volume, and area of the pancreatic islets in the diabetic rats treated with extracts compared to the untreated diabetic rats. Conclusion and implications: Nectarine and peach extracts’ anti-diabetic properties improved insulin secretion and pancreatic beta-cell function and subsequently led to restoring pancreatic islet mass in STZ-induced diabetic rats.
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Affiliation(s)
- Gholamreza Bahrami
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
| | - Babak Izadi
- Department of Pathology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
| | - Seyed Shahram Miraghaee
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
| | - Bahar Mohammadi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
| | - Razieh Hatami
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
| | - Soraya Sajadimajd
- Department of Biology, Faculty of Science, Razi University, Kermanshah, I.R. Iran
| | - Nasim Batooie
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
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Umeoguaju FU, Ephraim-Emmanuel BC, Uba JO, Bekibele GE, Chigozie N, Orisakwe OE. Immunomodulatory and Mechanistic Considerations of Hibiscus sabdariffa (HS) in Dysfunctional Immune Responses: A Systematic Review. Front Immunol 2021; 12:550670. [PMID: 34040600 PMCID: PMC8141557 DOI: 10.3389/fimmu.2021.550670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 04/08/2021] [Indexed: 11/13/2022] Open
Abstract
Hibiscus sabdariffa calyx (HS) water decoction extract is a commonly consumed beverage with various pharmacological properties. This systematic review examines the possible effect of HS intake on immune mediators. The Scopus and PUBMED databases were searched for all human and animal studies that investigated the effect of HS administration on immune related biomarkers. For each of the immune biomarkers, the mean, standard deviation and number of subjects were extracted for both the HS treated and untreated group. These values were used in the computation of standardized mean difference (SMD). Statistical analysis and forest plot were done with R statistical software (version 3.6.1). Twenty seven (27) studies met the eligibility criteria. Twenty two (22) of the studies were used for the meta-analysis which included a total of 1211 subjects. The meta-analysis showed that HS administration significantly lowered the levels of TNF-α (n=10; pooled SMD: -1.55; 95% CI: -2.43, -0.67; P < 0.01), IL-6 (n=11; pooled SMD:-1.09; 95% CI: -1.77, -0.40; P < 0.01), IL-1β (n=7; pooled SMD:-0.62; 95% CI: -1.25, 0.00; P = 0.05), Edema formation (n=4; pooled SMD: -2.29; 95% CI: -4.47, -0.11; P = 0.04), Monocyte Chemoattractant Protein -1 (n=4; pooled SMD: -1.17; 95% CI: -1.78, -0.57; P < 0.01) and Angiotensin converting enzyme cascade (n=6; pooled SMD: -0.91; 95% CI: -1.57, -0.25; P < 0.01). The levels of IL-10 (n=4; pooled SMD: -0.38; 95% CI: -1.67, 0.91; P = 0.56), Interleukin 8 (n=2; pooled SMD:-0.12; 95% CI: -0.76, 0.51; P = 0.71), iNOS (n=2; pooled SMD:-0.69; 95% CI: -1.60, 0.23 P = 0.14) and C- Reactive Protein (n=4; pooled SMD: 0.05; 95% CI: -0.26, 0.36; P = 0.75), were not significantly changed by HS administration. Some of the results had high statistical heterogeneity. HS may be promising in the management of disorders involving hyperactive immune system or chronic inflammation.
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Affiliation(s)
- Francis U. Umeoguaju
- World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, Port Harcourt, Nigeria
| | - Benson C. Ephraim-Emmanuel
- World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, Port Harcourt, Nigeria
- Department of Dental Health Sciences, Ogbia, Bayelsa State College of Health Technology, Otakeme, Nigeria
| | - Joy O. Uba
- World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, Port Harcourt, Nigeria
| | - Grace E. Bekibele
- World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, Port Harcourt, Nigeria
| | - Nwondah Chigozie
- World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, Port Harcourt, Nigeria
| | - Orish Ebere Orisakwe
- World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, Port Harcourt, Nigeria
- Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port Harcourtt, Port Harcourt, Nigeria
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Tan X, Chen H, Zhou X. Study on the activity of Mori Fructus polysaccharides and its derivatives against acute alcoholic liver injury in mice. J Carbohydr Chem 2021. [DOI: 10.1080/07328303.2021.1895194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xi Tan
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, China
- Guizhou Engineering Laboratory for Quality Control and Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, China
- Research Center for Quality Control of Natural Medicine, Guizhou Normal University, Guiyang, China
| | - Huaguo Chen
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, China
- Guizhou Engineering Laboratory for Quality Control and Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, China
- Research Center for Quality Control of Natural Medicine, Guizhou Normal University, Guiyang, China
| | - Xin Zhou
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, China
- Guizhou Engineering Laboratory for Quality Control and Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, China
- Research Center for Quality Control of Natural Medicine, Guizhou Normal University, Guiyang, China
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Chen Y, Ou X, Yang J, Bi S, Peng B, Wen Y, Song L, Li C, Yu R, Zhu J. Structural characterization and biological activities of a novel polysaccharide containing N-acetylglucosamine from Ganoderma sinense. Int J Biol Macromol 2020; 158:S0141-8130(20)33174-3. [PMID: 32387611 DOI: 10.1016/j.ijbiomac.2020.05.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/21/2020] [Accepted: 05/04/2020] [Indexed: 10/24/2022]
Abstract
A novel homogeneous heteropolysaccharide (GSPB70-S) with a molecular weight of 2.87 kDa was isolated from Ganoderma sinense. Structural analysis showed that GSPB70-S was composed of glucose, glucosamine, mannose, and galactose with a molar ratio of 12.90:3.70:2.26:1.00. The repeating structure units of GSPB70-S were characterized by the combined application of chemical methods and nuclear magnetic resonance. GSPB70-S contains a backbone of →3)-β-D-Glcp-(1 → 4)-α-D-GlcpNAc-(1 → 4)-α-D-Manp-(1 → 3)-β-D-Glcp-(1→, with branches of β-D-Glcp-(1→, α-D-GlcpNAc-(1 → and →4)-α-D-Galp-(1→. Scanning electron microscope (SEM) showed that GSPB70-S presented a long strip shape with different thicknesses, and there were many lamellar substances on the surface. Biological research showed that GSPB70-S inhibited the activity of α-glucosidase in vitro, increased the viability of RAW 264.7 macrophages, and promoted the release of NO. In addition, GSPB70-S showed good abilities to scavenge free radicals.
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Affiliation(s)
- Yiyu Chen
- Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Xiaozheng Ou
- Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Jianing Yang
- Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Sixue Bi
- Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Bao Peng
- Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Yao Wen
- Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Liyan Song
- Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China.
| | - Chunlei Li
- Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Rongmin Yu
- Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China; Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China.
| | - Jianhua Zhu
- Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China; Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China.
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7
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You X, Li Z, Ma K, Zhang C, Chen X, Wang G, Yang L, Dong M, Rui X, Zhang Q, Li W. Structural characterization and immunomodulatory activity of an exopolysaccharide produced by Lactobacillus helveticus LZ-R-5. Carbohydr Polym 2020; 235:115977. [DOI: 10.1016/j.carbpol.2020.115977] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/06/2020] [Accepted: 02/10/2020] [Indexed: 12/12/2022]
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8
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Xiang B, Yu X, Li B, Xiong Y, Long M, He Q. Characterization, antioxidant, and anticancer activities of a neutral polysaccharide from Duchesnea indica (Andr.) Focke. J Food Biochem 2019; 43:e12899. [PMID: 31353707 DOI: 10.1111/jfbc.12899] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/28/2019] [Accepted: 04/30/2019] [Indexed: 11/30/2022]
Abstract
A neutral polysaccharide (DIP-1) from Duchesnea indica (Andr.) Focke was obtained by hot water extraction, ethanol precipitation and chromatographic separation (DEAE-52 cellulose anion-exchange column and Sephadex G-100 gel column). The physicochemical properties of DIP-1 were elucidated by gel permeation chromatography, monosaccharide composition, Fourier transform infrared spectrometry, UV-visible spectrophotometry, scanning electron microscope and Congo red test. The results indicated that DIP-1 was consisted of mannose, glucosamine, glucose, galactose and arabinose in a ratio of 1.00:0.42:18.36:14.17:0.81, and its molecular weight was 218.3 kDa. Meanwhile, DIP-1 presented a straight hexahedron structure, but no triple-helical conformation. In antioxidant activity tests, DIP-1 exhibited powerful scavenging activities on hydroxyl, DPPH, ABTS radicals and reducing power in a dose-dependent manner. Especially, DIP-1 demonstrated high inhibitory activities against SKOV-3 and Hep-G2 cells in vitro, with IC50 values of 1.42 and 1.23 mg/ml, respectively. PRACTICAL APPLICATIONS: D. indica has been used for a long time as a Chinese medicine for therapy of many diseases, including cancer, inflammation, leprosy, fever, bleeding and so on. At present, polysaccharides have attracted comprehensive attention because of a large range of pharmacological and biological properties, including antitumor, antidiabetic, antioxidant and immunomodulatory activity. In the present study, we purified and characterized a neutral polysaccharide from D. indica for the first time. Moreover, the neutral polysaccharide exhibits significant antioxidant and antitumor activities. Therefore, the present study laid a foundation for the high-value application of D. indica polysaccharides in functional food and pharmaceutical industries.
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Affiliation(s)
- Bolin Xiang
- Engineering Research Center of Biotechnology for Active Substances, Ministry of Education; Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, Chongqing, China
| | - Xiaodong Yu
- Engineering Research Center of Biotechnology for Active Substances, Ministry of Education; Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, Chongqing, China
| | - Bo Li
- School of Education, Chongqing Normal University, Chongqing, China
| | - Yan Xiong
- Engineering Research Center of Biotechnology for Active Substances, Ministry of Education; Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, Chongqing, China
| | - Min Long
- Engineering Research Center of Biotechnology for Active Substances, Ministry of Education; Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, Chongqing, China
| | - Qiyi He
- Engineering Research Center of Biotechnology for Active Substances, Ministry of Education; Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, Chongqing, China
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Guo Y, Ye Q, Yang S, Wu J, Ye B, Wu Y, Huang Z, Zheng C. Therapeutic effects of polysaccharides from Anoectochilus roxburghii on type II collagen-induced arthritis in rats. Int J Biol Macromol 2018; 122:882-892. [PMID: 30408452 DOI: 10.1016/j.ijbiomac.2018.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/03/2018] [Accepted: 11/03/2018] [Indexed: 02/07/2023]
Abstract
Anoectochilus roxburghii, a famous Chinese herbal medicine, has been commonly used for the treatment of liver disease, diabetes, and rheumatoid arthritis. Our study aimed to investigate the anti-rheumatoid arthritis effects of A. roxburghii polysaccharides (ARP), using the rat's model of type II collagen-induced arthritis (CIA). ARP was prepared by alcohol sedimentation and structurally characterized based on combined chemical, chromatographic and spectroscopic methods. High Performance Size Exclusion Chromatography-Multiangle Laser Light Scattering-Refrative Index (HPSEC-MALLS-RI) analysis revealed that ARP includes two peaks, and the weight-average molecular weight (Mw) of the principal one was estimated as 5.90 kDa with a relative content of 98.2%. Pharmacological results exhibited that ARP significantly decreased the arthritis index and ameliorated the inflammatory cell infiltration and the synovial tissue destruction in CIA rats. Additionally, ARP possessed significant NO production inhibitory effects and antioxidant activity. Further anti-inflammatory mechanism investigations indicated that ARP significantly inhibited the activation of nuclear factor κB (NF-κB) pathway by suppressing the phosphorylation of IκB and p65, which subsequently down-regulated the mRNA expressions of IL-1β and IL-6 in LPS-stimulated RAW 264.7 cells. These findings suggested that ARP has great potential in the development of functional foods and dietary supplements for the treatment of rheumatoid arthritis.
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Affiliation(s)
- Yaoli Guo
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350122, China
| | - Qi Ye
- Department of Biological Science, College of Life Science, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Fuzhou 350002, China
| | - Shuling Yang
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350122, China
| | - Jinzhong Wu
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350122, China
| | - Bingzhu Ye
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Yanbin Wu
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350122, China.
| | - Zehao Huang
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350122, China.
| | - Chengjian Zheng
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
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Nie C, Zhu P, Ma S, Wang M, Hu Y. Purification, characterization and immunomodulatory activity of polysaccharides from stem lettuce. Carbohydr Polym 2018; 188:236-242. [PMID: 29525161 DOI: 10.1016/j.carbpol.2018.02.009] [Citation(s) in RCA: 156] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 01/27/2018] [Accepted: 02/03/2018] [Indexed: 12/17/2022]
Abstract
Stem lettuce has a long history of cultivation in China and possesses high nutritional and medicinal value. In our previous studies, extraction optimization, characterization, and bioactivities of stem lettuce polysaccharides (SLP) were investigated. In this study, SLP were further separated into two purified polysaccharides, SLP-1 and SLP-2, by anion exchange chromatography followed by size exclusion chromatography. SLP-1, with a molecular weight of 90 KDa, was mainly composed of galacturonic acid, galactose and arabinose in a molar ratio of 17.6:41.7:33.9. SLP-2, with a molecular weight of 44 KDa, was mainly composed of mannose, galacturonic acid, galactose and arabinose in a molar ratio of 11.5:69.5:9.3:8.2. In addition, both purified polysaccharides contain sulphate radicals, have triple helical structures and can promote macrophage proliferation without cytotoxicity. SLP-2 was better able to stimulate phagocytic and nitric oxide production than SLP-1. The results suggest that polysaccharides from stem lettuce could be explored as immunomodulatory agents in the field of pharmaceuticals and functional foods.
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Affiliation(s)
- Chenzhipeng Nie
- Anhui Province Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China
| | - Peilei Zhu
- Anhui Province Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China; Institute of Horticulture, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Shuping Ma
- Anhui Province Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China
| | - Mingchun Wang
- Anhui Province Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China.
| | - Youdong Hu
- Affiliated Huaian Hospital of Xuzhou Medical College, Huaian 223002, China
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11
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Sulfated modification of polysaccharides: Synthesis, characterization and bioactivities. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.02.010] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Luo B, Dong LM, Xu QL, Zhang Q, Liu WB, Wei XY, Zhang X, Tan JW. Characterization and immunological activity of polysaccharides from Ixeris polycephala. Int J Biol Macromol 2018; 113:804-812. [PMID: 29501843 DOI: 10.1016/j.ijbiomac.2018.02.165] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 02/26/2018] [Accepted: 02/28/2018] [Indexed: 01/15/2023]
Abstract
A water-soluble polysaccharide, named KMCP, was isolated and purified from edible plant Ixeris polycephala by using DEAE-52 cellulose chromatography. Its structure was determined by chemical analysis, methylation analysis, and NMR analysis, coupled with characterization by scanning electron spectroscopy (SEM). The resulting data indicated that KMCP was an arabinogalactan, with an average molecular weight of 1.95×106Da, which was mainly composed of arabinose and galactose in a relative molar ratio of 28.1% and 70.3%, respectively. The structure of KMPC was characterized as 72.5% of (1→4)-β-Galp residues interspersed with 27.5% of (1→4,6)-β-Galp residues in the main chain, and the branches were composed of (1→5)-α-Araf moieties or α-Araf (1→5) α-Araf (1→disaccharide moieties attached at O-6 of the (1→4,6)-β-Galp residues. KMCP was revealed to be capable of exhibiting macrophage-mediated innate immune responses via enhancing phagocytosis of macrophages and increasing production of NO, activating NF-κB signaling pathway and promoting the mice spleen cells proliferation in a dose-dependent manner within the test concentrations (10.0-200.0μg/mL). These results suggested that KMCP could potentially be an effective and safe immunomodulator valuable to be utilized in pharmacological fields or in the development of functional foods.
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Affiliation(s)
- Bi Luo
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Li-Mei Dong
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Qiao-Lin Xu
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, China.
| | - Qiang Zhang
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen-Bin Liu
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Yi Wei
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Xu Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Jian-Wen Tan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China.
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Wang M, Zhao S, Zhu P, Nie C, Ma S, Wang N, Du X, Zhou Y. Purification, characterization and immunomodulatory activity of water extractable polysaccharides from the swollen culms of Zizania latifolia. Int J Biol Macromol 2017; 107:882-890. [PMID: 28939508 DOI: 10.1016/j.ijbiomac.2017.09.062] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 08/28/2017] [Accepted: 09/17/2017] [Indexed: 10/18/2022]
Abstract
The swollen culms of Zizania latifolia is a popular vegetable and traditional herbal medicine mainly consumed in some Asian countries. In our previous study, water extractable polysaccharide (ZLPs-W) and alkali extractable polysaccharide (ZLPs-A) was sequentially prepared from the swollen culms of Zizania latifolia. In vitro cell assay revealed that ZLPs-W without cytotoxicity had higher immunomodulatory activity than ZLPs-A. Therefore, in this study, ZLPs-W was further separated to three purified polysaccharides of ZLPs-W1, ZLPs-W2, and ZLPs-W3 by anion exchange chromatography and size exclusive chromatography in sequence. They were found to be homogeneous polysaccharides in β-type glycosidic linkage. ZLPs-W1 and ZLPs-W2 without triple helix conformation mainly contained Glc in molar percentage of 96.47% and 85.1%, respectively. ZLPs-W3 with triple helix conformation mainly consisted of Man, Rha, GalA, Glc, Gal and Ara in the molar ratio of 10.23:14.14:37.44:17.14:16.54:4.51. In addition, all the three purified polysaccharides could effectively enhanced the proliferation, phagocytosis, and nitric oxide production of murine macrophage RAW 264.7, suggesting that they possessed a potent immunostimulatory activity and could be developed as immunomodulator in medicine or functional food areas.
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Affiliation(s)
- Mingchun Wang
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China.
| | - Shiwei Zhao
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China
| | - Peilei Zhu
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China; Institute of Horticulture, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Chenzhipeng Nie
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China
| | - Shuping Ma
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China
| | - Naifu Wang
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China
| | - Xianfeng Du
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China
| | - Yibin Zhou
- Anhui Province Agricultural Products Processing Engineering Laboratory, Anhui Agricultural University, Hefei 230036, China; Department of Food Science and Engineering, Anhui Agricultural University, Hefei 230036, China.
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14
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Immune-enhancing activity of polysaccharides from Hibiscus sabdariffa Linn. via MAPK and NF-kB signaling pathways in RAW264.7 cells. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.03.060] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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