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Ren H, Li K, Min Y, Qiu B, Huang X, Luo J, Qi L, Kang M, Xia P, Qiao H, Chen J, Cui Y, Gan L, Wang P, Wang J. Rehmannia glutinosa Polysaccharides: Optimization of the Decolorization Process and Antioxidant and Anti-Inflammatory Effects in LPS-Stimulated Porcine Intestinal Epithelial Cells. Antioxidants (Basel) 2023; 12:antiox12040914. [PMID: 37107289 PMCID: PMC10136223 DOI: 10.3390/antiox12040914] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Polysaccharide decolorization has a major effect on polysaccharide function. In the present study, the decolorization of Rehmannia glutinosa polysaccharides (RGP) is optimized using two methods-the AB-8 macroporous resin (RGP-1) method and the H2O2 (RGP-2) method. The optimal decolorization parameters for the AB-8 macroporous resin method were as follows: temperature, 50 °C; macroporous resin addition, 8.4%; decolorization duration, 64 min; and pH, 5. Under these conditions, the overall score was 65.29 ± 3.4%. The optimal decolorization conditions for the H2O2 method were as follows: temperature, 51 °C; H2O2 addition, 9.5%; decolorization duration, 2 h; and pH, 8.6. Under these conditions, the overall score was 79.29 ± 4.8%. Two pure polysaccharides (RGP-1-A and RGP-2-A) were isolated from RGP-1 and RGP-2. Subsequently, their antioxidant and anti-inflammatory effects and mechanisms were evaluated. RGP treatment activated the Nrf2/Keap1 pathway and significantly increased the activity of antioxidant enzymes (p < 0.05). It also inhibited the expression of pro-inflammatory factors and suppressed the TLR4/NF-κB pathway (p < 0.05). RGP-1-A had a significantly better protective effect than RGP-2-A, likely owing to the sulfate and uronic groups it contains. Together, the findings indicate that RGP can act as a natural agent for the prevention of oxidation and inflammation-related diseases.
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Affiliation(s)
- Heng Ren
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Kejie Li
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Yan Min
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Binhang Qiu
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Xiaolu Huang
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Jingxin Luo
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Liwen Qi
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Maoli Kang
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Peng Xia
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Hanzhen Qiao
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Jun Chen
- Jiangxi Province Key Laboratory of Animal Nutrition, Jiangxi Province Key Innovation Center of Integration in Production and Education for High-Quality and Safe Livestock and Poultry, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yaoming Cui
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Liping Gan
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Peng Wang
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
| | - Jinrong Wang
- School of Bioengineering, Henan University of Technology, Lianhua Street, Hi-Tech Zone, Zhengzhou 450000, China
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Zhou Y, Wang S, Feng W, Zhang Z, Li H. Structural characterization and immunomodulatory activities of two polysaccharides from Rehmanniae Radix Praeparata. Int J Biol Macromol 2021; 186:385-395. [PMID: 34197855 DOI: 10.1016/j.ijbiomac.2021.06.100] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 11/29/2022]
Abstract
The structures and immunomodulatory activities of two polysaccharides (SDH-WA and SDH-0.2A) from Rehmanniae Radix Praeparata (RRP) were investigated. RRP crude polysaccharide was obtained by water extraction and purified. Ion chromatography, high-performance gel permeation chromatography, Fourier-transform infrared spectroscopy, methylation analysis, gas chromatography-mass spectrometry, and nuclear magnetic resonance were used to characterize the polysaccharides. The main chain of SDH-WA was →6)-α-D-Galp-(1→6)-α-D-Galp-(1→5)-α-L-Araf-(1→3,5)-α-L-Araf-(1→, terminal sugar residue α-L-Araf-(1→ linked to residue →3,5)-α-L-Araf-(1→ on the main chain by an O-3 bond. The other two terminal sugar residues α-D-Galp-(1→ and →6)-β-D-Galp were linked to the end of the main chain. The main chain of SDH-0.2A was →2,4)-α-L-Rhap-(1→4)-α-D-GalpA-(1→. Three branched chains α-D-Galp-(1→6)-α-D-Galp-(1→5)-α-L-Araf-(1→3,5)-α-L-Araf-(1→, →3,6)-β-D-Galp-(1→5)-α-L-Araf-(1→, and →4)-β-D-Galp-(1→5)-α-L-Araf-(1→ were linked to the main chain residue →2,4)-α-L-Rhap-(1→ by an O-2 bond. Three terminal sugar residues α-D-Galp-(1→, α-L-Araf-(1→, and →6)-β-D-Galp were linked to the end of the chain. Both polysaccharides showed no cytotoxic effects on and significantly promoted the phagocytic activity of RAW264.7 cells. They dose-dependently improved lysozyme activity and stimulated the production of TNF-α and IL-6 by RAW264.7 cells, but attenuated the secretion of lysozymes, TNF-α, IL-6, IL-1β, and nitric oxide by lipopolysaccharide-induced RAW264.7 cells. The present studies suggest that PRR polysaccharide is a valuable source with immunomodulating.
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Affiliation(s)
- Yan Zhou
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; Department of Traditional Chinese Medicine, College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China
| | - Shengchao Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Weisheng Feng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Zhenling Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Hongwei Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
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Kwak M, Yu K, Lee PCW, Jin JO. Rehmannia glutinosa polysaccharide functions as a mucosal adjuvant to induce dendritic cell activation in mediastinal lymph node. Int J Biol Macromol 2018; 120:1618-1623. [DOI: 10.1016/j.ijbiomac.2018.09.187] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/04/2018] [Accepted: 09/28/2018] [Indexed: 12/21/2022]
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Xu L, Kwak M, Zhang W, Zeng L, Lee PCW, Jin JO. Rehmannia glutinosa polysaccharide induces toll-like receptor 4 dependent spleen dendritic cell maturation and anti-cancer immunity. Oncoimmunology 2017; 6:e1325981. [PMID: 28811960 DOI: 10.1080/2162402x.2017.1325981] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/26/2017] [Accepted: 04/26/2017] [Indexed: 10/19/2022] Open
Abstract
Rehmannia glutinosa polysaccharide (RGP) has shown an activation of immune cells in vitro. However, the immune stimulatory effect of RGP in a mouse in vivo is not well studied. In this study, we examined the effect of RGP on dendritic cell (DC) activation and anticancer immunity in vivo. Treatments of RGP in C56BL/6 mice induced increased levels of co-stimulatory molecule expression and pro-inflammatory cytokine production in spleen DCs dependent on toll-like receptor 4 (TLR4), and those DCs promoted interferon-gamma (IFNγ) production in CD4+ and CD8+ T cells. RGP also enhanced ovalbumin (OVA) antigen (Ag)-specific immune activation in tumor-bearing mice, including Ag presentation in DCs, OT-I and OT-II T-cell proliferation, migration of OT-I and OT-II T cells into the B16-OVA tumor, OVA-specific IFNγ production, and the specific killing of OVA-coated splenocytes, which consequently inhibited B16-OVA tumor growth dependent on TLR4 and CD8+ T cells. Finally, the combination of RGP and self-Ag treatment efficiently inhibited CT26 carcinoma and B16 melanoma tumor growth in BLAB/c and C57BL/6 mice, respectively. These data demonstrate that RGP could be a useful adjuvant molecule for immunotherapy against cancer.
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Affiliation(s)
- Li Xu
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai, China
| | - Minseok Kwak
- Department of Chemistry, Pukyong National University, Busan, South Korea.,Marine-Integrated Bionics Research Center, Pukyong National University, Busan, South Korea
| | - Wei Zhang
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ling Zeng
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai, China
| | - Peter Chang-Whan Lee
- Department of Biomedical Sciences, University of Ulsan College of Medicine, ASAN Medical Center, Seoul, South Korea
| | - Jun-O Jin
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai, China
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Tan W, Yu KQ, Liu YY, Ouyang MZ, Yan MH, Luo R, Zhao XS. Anti-fatigue activity of polysaccharides extract from Radix Rehmanniae Preparata. Int J Biol Macromol 2012; 50:59-62. [DOI: 10.1016/j.ijbiomac.2011.09.019] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 09/17/2011] [Accepted: 09/24/2011] [Indexed: 11/26/2022]
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Lee SY, Kim JS, Choi RJ, Kim YS, Lee JH, Kang SS. A New Polyoxygenated Triterpene and Two New Aeginetic Acid Quinovosides from the Roots of Rehmannia glutinosa. Chem Pharm Bull (Tokyo) 2011; 59:742-6. [DOI: 10.1248/cpb.59.742] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- So Young Lee
- Natural Products Research Institute and College of Pharmacy, Seoul National University
| | - Ju Sun Kim
- Natural Products Research Institute and College of Pharmacy, Seoul National University
| | - Ran Joo Choi
- Natural Products Research Institute and College of Pharmacy, Seoul National University
| | - Yeong Shik Kim
- Natural Products Research Institute and College of Pharmacy, Seoul National University
| | - Je-Hyun Lee
- Department of Korean Medicine, Dongguk University
| | - Sam Sik Kang
- Natural Products Research Institute and College of Pharmacy, Seoul National University
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Underwood JR, Chivers M, Dang TT, Licciardi PV. Stimulation of tetanus toxoid-specific immune responses by a traditional Chinese herbal medicine. Vaccine 2009; 27:6634-41. [DOI: 10.1016/j.vaccine.2009.03.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Revised: 03/08/2009] [Accepted: 03/19/2009] [Indexed: 11/30/2022]
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Zhang RX, Li MX, Jia ZP. Rehmannia glutinosa: review of botany, chemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2008; 117:199-214. [PMID: 18407446 DOI: 10.1016/j.jep.2008.02.018] [Citation(s) in RCA: 216] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2007] [Revised: 01/28/2008] [Accepted: 02/02/2008] [Indexed: 05/04/2023]
Abstract
Rehmannia glutinosa, a widely used traditional Chinese herb, belongs to the family of Scrophulariaceae, and is taken to nourish Yin and invigorate the kidney in traditional Chinese medicine (TCM) and has a very high medicinal value. In recent decades, a great number of chemical and pharmacological studies have been done on Rehmannia glutinosa. More than 70 compounds including iridoids, saccharides, amino acid, inorganic ions, as well as other trace elements have been found in the herb. Studies show that Rehmannia glutinosa and its active principles possess wide pharmacological actions on the blood system, immune system, endocrine system, cardiovascular system and the nervous system. Currently, the effective monomeric compounds or active parts have been screened for the pharmacological activity of Rehmannia glutinosa and the highest quality scientific data is delivered to support the further application and exploitation for new drug development.
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Affiliation(s)
- Ru-Xue Zhang
- Clinical Pharmacy Key Discipline of State Administration of Traditional Chinese Medicine, Lanzhou General Hospital, Lanzhou Command, PLA, Lanzhou 730050, PR China.
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Chao JCJ, Chiang SW, Wang CC, Tsai YH, Wu MS. Hot water-extracted Lycium barbarum and Rehmannia glutinosa inhibit proliferation and induce apoptosis of hepatocellular carcinoma cells. World J Gastroenterol 2006; 12:4478-84. [PMID: 16874858 PMCID: PMC4125633 DOI: 10.3748/wjg.v12.i28.4478] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of hot water-extracted Lycium barbarum (LBE) and Rehmannia glutinosa (RGE) on cell proliferation and apoptosis in rat and/or human hepatocellular carcinoma (HCC) cells.
METHODS: Rat (H-4-II-E) and human HCC (HA22T/VGH) cell lines were incubated with various concentrations (0-10 g/L) of hot water-extracted LBE and RGE. After 6-24 h incubation, cell proliferation (n = 6) was measured by a colorimetric method. The apoptotic cells (n = 6) were detected by flow cytometry. The expression of p53 protein (n = 3) was determined by SDS-PAGE and Western blotting.
RESULTS: Crude LBE (2-5 g/L) and RGE (2-10 g/L) dose-dependently inhibited proliferation of H-4-II-E cells by 11% (P < 0.05) to 85% (P < 0.01) after 6-24 h treatment. Crude LBE at a dose of 5 g/L suppressed cell proliferation of H-4-II-E cells more effectively than crude RGE after 6-24 h incubation (P < 0.01). Crude LBE (2-10 g/L) and RGE (2-5 g/L) also dose-dependently inhibited proliferation of HA22T/VGH cells by 14%-43% (P < 0.01) after 24 h. Crude LBE at a dose of 10 g/L inhibited the proliferation of HA22T/VGH cells more effectively than crude RGE (56.8% ± 1.6% vs 70.3% ± 3.1% of control, P = 0.0003 < 0.01). The apoptotic cells significantly increased in H-4-II-E cells after 24 h treatment with higher doses of crude LBE (2-5 g/L) and RGE (5-10 g/L) (P < 0.01). The expression of p53 protein in H-4-II-E cells was 119% and 143% of the control group compared with the LBE-treated (2, 5 g/L) groups, and 110% and 132% of the control group compared with the RGE -treated (5, 10 g/L) groups after 24 h.
CONCLUSION: Hot water-extracted crude LBE (2-5 g/L) and RGE (5-10 g/L) inhibit proliferation and stimulate p53-mediated apoptosis in HCC cells.
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Affiliation(s)
- Jane C-J Chao
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan, China
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