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Zheng SX, Chen JP, Liang RS, Zhuang BB, Wang CH, Zhang GL, Shi SS, Chen J. Schizophyllum commune fruiting body polysaccharides inhibit glioma by mediating ARHI regulation of PI3K/AKT signalling pathway. Int J Biol Macromol 2024; 279:135326. [PMID: 39236963 DOI: 10.1016/j.ijbiomac.2024.135326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 09/02/2024] [Accepted: 09/03/2024] [Indexed: 09/07/2024]
Abstract
Glioma poses a serious threat to human health and has a high mortality rate. Therefore, developing natural anti-tumour drugs for cancer treatment is an urgent priority. Schizophyllum commune is an edible and medicinal fungus, with polysaccharides as its main active components, which may have anti-tumour properties. Herein, we characterised S. commune fruiting body polysaccharides (SCFP) structure and evaluated its anti-glioma activity in vitro and in vivo. UV and FTIR spectra, high-performance gel chromatography, and monosaccharide composition analyses demonstrated that SCFP was a heteropolysaccharide with a molecular weight of 290.92 kDa. Among the monosaccharide compositions, mannose, galactose, and glucose were the most abundant. SCFP significantly inhibited the survival of the glioma cell lines U251 and U-87MG. U251 xenograft tumours treated with SCFP via gavage showed a 47.39 % inhibition, with no significant toxic side effects observed. SCFP upregulated aplasia Ras homologue member I (ARHI) expression, thereby regulating PI3K/AKT signalling, inhibiting tumour migration, and inducing apoptosis, to inhibit tumour growth. Furthermore, SCFP treatment increased the relative abundance of beneficial bacteria, including Akkermansia muciniphila, Ligilactobacillus murinus, and Parabacteroides goldsteinii, in tumour-bearing mice and restored the gut microbiota structure to that of the normal group (NG group) mice without tumours. Thus, SCFP has the potential for application as a natural anticancer drug.
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Affiliation(s)
- Shi-Xing Zheng
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou 350001, Fujian, China
| | - Jian-Ping Chen
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou 350001, Fujian, China
| | - Ri-Sheng Liang
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou 350001, Fujian, China
| | - Bing-Bo Zhuang
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou 350001, Fujian, China
| | - Chun-Hua Wang
- Fujian Institute of Neurosurgery, 29# Xinquan Road, Fuzhou 350001, Fujian, China
| | - Guo-Liang Zhang
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou 350001, Fujian, China
| | - Song-Sheng Shi
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou 350001, Fujian, China
| | - Jing Chen
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou 350001, Fujian, China.
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2
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He TB, Bao Y, Liu HJ, Jiang JN, Jiang GD, Xu DH, Shen XJ, Yang QS, Hu JM. The general glycan profiling of Dendrobium officinale and their protective effects on MIN6 cells via ERK signaling pathway. Int J Biol Macromol 2024:136413. [PMID: 39395523 DOI: 10.1016/j.ijbiomac.2024.136413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 09/21/2024] [Accepted: 10/06/2024] [Indexed: 10/14/2024]
Abstract
Based on structural elucidation of natural and hydrolyzed glycans, the general glycans profiling of D. officinale were unequivocally established for the first time as follows: The results indicated that the structure of D. officinale glycans with low degree of polymerization (DP ≤ 22) was linear α-D-1,4-glucan, whereas the structure of glycans with high degree of polymerization (DP > 24) was linear acetylated 1,4-glucomannan. The content of acetyl groups and mannose to glucose (M/G) ratio increased with the degree of polymerization of D. officinale glycans. In addition, this study showed that natural D. officinale glycans protected pancreatic β-cell damage induced by glucotoxicity through the extracellular signal-regulated kinase (ERK)1/2 pathway.
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Affiliation(s)
- Tao-Bin He
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China
| | - Yu Bao
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China; College of Ethnic Medicine, Yunnan Minzu University, Kunming 650000, Yunnan, People's Republic of China
| | - Hong-Jun Liu
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China; College of Ethnic Medicine, Yunnan Minzu University, Kunming 650000, Yunnan, People's Republic of China
| | - Jia-Nan Jiang
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China
| | - Guo Dong Jiang
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China
| | - De Hong Xu
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China
| | - Xiao-Jiang Shen
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China
| | - Qing-Song Yang
- College of Ethnic Medicine, Yunnan Minzu University, Kunming 650000, Yunnan, People's Republic of China
| | - Jiang-Miao Hu
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China; Bio-Innovation Center of DR PLANT, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China.
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3
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Chang X, Zhang D, Shi W, Yu Q, Wu Z, Yang J, Tang Z, Chen H, Yan C. An arabinoxylan (AOP70-1) isolated from Alpinia oxyphylla alleviates neuroinflammation and neurotoxicity by TLR4/MyD88/NF-κB pathway. Int J Biol Macromol 2024; 277:134339. [PMID: 39089558 DOI: 10.1016/j.ijbiomac.2024.134339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/14/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Alpinia oxyphylla is famous for its neuroprotective and memory-improving effects. A crude polysaccharide AO70 from A. oxyphylla remarkably ameliorated neuroinflammation and cognitive dysfunction in Alzheimer's disease mice. This study aimed to explore the bioactive component of AO70 and its mechanism of action. A homogeneous polysaccharide (AOP70-1) rich in arabinose and xylose was purified from AO70, which was consisted of α-L-Araf-(1→, →5)-α-L-Araf-(1→, β-D-Xylp-(1→,→2,4)-β-D-Xylp-(1→, →2,3,4)-β-D-Xylp-(1→, α-L-Rhap-(1→, α-D-Manp-(1→, →4)-α-D-Glcp-(1→, →4)-α-D-GlcpA-(1→, β-D-Galp-(1→, →2)-α-D-Galp-(1→, →6)-α-D-Galp-(1 → and →3,6)-α-D-Manp-(1 →. AOP70-1 (2.5, 5, 10 μM) significantly suppressed NO, IL-1β, and TNF-α production in a concentration-dependent manner and inhibited the migration of BV2 microglia. AOP70-1 inhibited LPS-mediated activation of Toll-like receptor 4 (TLR4), myeloid differentiation primary response protein (MyD88), and nuclear factor kappa B (NF-κB). Moreover, AOP70-1 exerted neuroprotection on SH-SY5Y cells and primary neurons by reducing neuronal apoptosis (72 %, 44 %), alleviating ROS accumulation (63 %, 55 %), and improving mitochondrial membrane potential (63 %, 77 %). Overall, AOP70-1 is one of the major bioactive components in AO70 from A. oxyphylla, which has great potential in the prevention and treatment of neuroinflammation.
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Affiliation(s)
- Xiao Chang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Dawei Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Wenting Shi
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qian Yu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zhijian Wu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Junqiang Yang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zonggui Tang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Haiyun Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Chunyan Yan
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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4
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He Z, Zhu B, Deng L, You L. Effects of UV/H 2O 2 Degradation on the Physicochemical and Antibacterial Properties of Fucoidan. Mar Drugs 2024; 22:209. [PMID: 38786600 PMCID: PMC11123097 DOI: 10.3390/md22050209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024] Open
Abstract
The applications of fucoidan in the food industry were limited due to its high molecular weight and low solubility. Moderate degradation was required to depolymerize fucoidan. A few studies have reported that fucoidan has potential antibacterial activity, but its antibacterial mechanism needs further investigation. In this study, the degraded fucoidans were obtained after ultraviolet/hydrogen peroxide treatment (UV/H2O2) at different times. Their physicochemical properties and antibacterial activities against Staphylococcus aureus and Escherichia coli were investigated. The results showed that the average molecular weights of degraded fucoidans were significantly decreased (up to 22.04 times). They were mainly composed of fucose, galactose, and some glucuronic acid. Fucoidan degraded for 90 min (DFuc-90) showed the strongest antibacterial activities against Staphylococcus aureus and Escherichia coli, with inhibition zones of 27.70 + 0.84 mm and 9.25 + 0.61 mm, respectively. The minimum inhibitory concentrations (MIC) were 8 mg/mL and 4 mg/mL, respectively. DFuc-90 could inhibit the bacteria by damaging the cell wall, accumulating intracellular reactive oxygen species, reducing adenosine triphosphate synthesis, and inhibiting bacterial metabolic activity. Therefore, UV/H2O2 treatment could effectively degrade fucoidan and enhance its antibacterial activity.
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Affiliation(s)
| | | | | | - Lijun You
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (Z.H.); (B.Z.); (L.D.)
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5
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Zhu H, Xu L, Chen P, Li Z, Yu W, Sun P, Wu J, Cai M. Structure characteristics, protective effect and mechanisms of ethanol-fractional polysaccharides from Dendrobium officinale on acute ethanol-induced gastritis. Food Funct 2024; 15:4079-4094. [PMID: 38563230 DOI: 10.1039/d3fo05540j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Gastritis is a common disease characterized by gastric ulcers and severe bleeding. Excessive daily alcohol consumption can cause acute gastritis, impacting individuals' quality of life. This study aims to explore the protective effects of different ethanol-fractional polysaccharides of Dendrobium officinale (EPDO) on acute alcohol-induced gastric injury in vivo. Results showed that EPDO-80, identified as a β-glucan, exhibited significant anti-inflammatory properties in pathology. It could reduce the area of gastric mucosal injury and cell infiltration. EPDO-80 had a dose-effect relationship in reducing the levels of malondialdehyde and cyclooxygenase-2 and decreasing the levels of inflammation mediators such as tumor necrosis factor α. More extensively, EPDO-80 could inhibit the activation of the TNFR/IκB/NF-κB signaling pathway, reducing the production of TNF-α mRNA and cell apoptosis in organs. Conversely, EPDO-80 could promote changes in the gut microbiota structure. These findings suggest that EPDO-80 could have great potential in limiting oxidative stress and inflammation mediated by inhibiting the NF-κB signaling pathway, which is highly related to its β-glucan structure and functions in gut microbiota.
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Affiliation(s)
- Hua Zhu
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China.
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
- Department of Food Science & Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region of the People's Republic of China
| | - Lei Xu
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China.
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Peng Chen
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China.
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Zhenhao Li
- Longevity Valley Botanical Co., Ltd., Zhejiang 321200, People's Republic of China
| | - Wujin Yu
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China.
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Peilong Sun
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China.
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Jianyong Wu
- Department of Food Science & Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region of the People's Republic of China
| | - Ming Cai
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China.
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
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6
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Lai CH, Huo CY, Xu J, Han QB, Li LF. Critical review on the research of chemical structure, bioactivities, and mechanism of actions of Dendrobium officinale polysaccharide. Int J Biol Macromol 2024; 263:130315. [PMID: 38382782 DOI: 10.1016/j.ijbiomac.2024.130315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/15/2024] [Accepted: 02/18/2024] [Indexed: 02/23/2024]
Abstract
Dendrobium officinale (Tie-Pi-Shi-Hu) is a precious traditional Chinese medicine (TCM). The principal active components are polysaccharides (DOP), which have a high potency in therapeutic applications. However, limitations in structure analysis and underlying mechanism investigation impede its further research. This review systemically and critically summarises current understanding in both areas, and points out the influence of starch impurities and the role of gut microbiota in DOP research. As challenges faced in studying natural polysaccharide investigations are common, this review contributes to a broader understanding of polysaccharides beyond DOP.
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Affiliation(s)
- Cheuk-Hei Lai
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Chu-Ying Huo
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Jun Xu
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Quan-Bin Han
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Li-Feng Li
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
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7
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Li XJ, Yin Y, Xiao SJ, Chen J, Zhang R, Yang T, Zhou TY, Zhang SY, Hu P, Zhang X. Extraction, structural characterization and immunoactivity of glucomannan type polysaccahrides from Lilium brownii var. viridulum Baker. Carbohydr Res 2024; 536:109046. [PMID: 38335805 DOI: 10.1016/j.carres.2024.109046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/21/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024]
Abstract
Homogeneous polysaccharide (LBP) was extracted and purified from the bulblets of Lilium brownii var. viridulum Baker with a molecular weight of 312 kDa. The monosaccharides are composed of mannose and glucose, and the corresponding molar ratios are 0.582 and 0.418, respectively. FT-IR, LC-MS, NMR, GC-MS and HPAEC were used to analyze the functional groups, glycosidic linkages and chemical structure of LBP, which was a 1-4-linked glucomannan and contained a dodecasaccharide repeating units of →4)-β-D-Manp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-Glcp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-Glcp-(1 → 4)-α-D-Glcp-(1 → 4)-β-D-Glcp-(1 → 4)-β-D-Glcp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-Manp-(1 → . In vitro experimental results showed that LBP had noble biocompatibility, and a low dose of 5 μg/mL LBP significantly up-regulated the mRNA expression of TNF-α, iNOS, IL-6, IL-1β and Toll-like receptors family (TLRs) in RAW 264.7 cells. In conclusion, LBP played an important role in immunomodulation, and further studies on the specific immunomodulatory mechanisms of LBP on RAW 264.7 cells are still needed.
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Affiliation(s)
- Xiao-Jun Li
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001, PR China
| | - Yuan Yin
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China
| | - Shi-Jun Xiao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001, PR China
| | - Jiang Chen
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China
| | - Rui Zhang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001, PR China
| | - Tong Yang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001, PR China
| | - Tong-Yu Zhou
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001, PR China
| | - Si-Yan Zhang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001, PR China
| | - Pei Hu
- Jiangzhong Pharmaceutical Co., Ltd., No.1899 Meiling Road, Nanchang, 330103, PR China.
| | - Xue Zhang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, PR China.
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Denagbe W, Covis R, Guegan JP, Robinson JC, Bereau D, Benvegnu T. Structure and emulsifying properties of unprecedent glucomannan oligo- and polysaccharides from Amazonia Acrocomia aculeata palm fruit. Carbohydr Polym 2024; 324:121510. [PMID: 37985095 DOI: 10.1016/j.carbpol.2023.121510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/01/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023]
Abstract
Acrocomia aculeata fruit pulp contains oil (4.1-82.8 % fresh matter) and carbohydrates (6.6-98.0 % fresh matter). To date, only the oil fraction is valorized because very little is known about the nature of carbohydrates. This study explores new ways of adding value to this pulp by developing simple and efficient extraction processes for its carbohydrate components and characterizing their structure and physicochemical properties over two harvest periods. A water-soluble monosaccharide fraction F1 (solubility limit (SL): 98.5-99.3 g/L) (yield: 21 % dry pulp (DP)), a water-soluble polysaccharide fraction F2 (SL: 93.3-95.3 g/L) (yield: 26 % DP) and two additional water-insoluble polysaccharide fractions F3 and F4 (SL: <8 g/L) (yields: 10 and 19 % DP, respectively) were isolated. NMR structural characterizations of fraction F2 revealed it to be a linear glucomannan with β-(1 → 4) osidic linkages between d-Manp and d-Glcp residues. F2 is unique for its d-Manp/d-Glcp ratio of 3:1 and the position of its acetyl group (13-14 %, C-2 d-Manp). Finally, the polysaccharide showed a molecular weight (Mw) variation ranging from 8.2 × 104 to 1.1 × 103 Da over the two harvest periods, with remarkable emulsifying properties associated with a low Mw of F2 (stability >6 months, 1 % w/v in a water-in-oil emulsion).
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Affiliation(s)
- Wilfried Denagbe
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France; CNRS, ISCR-UMR 6226, Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes, F-35000 Rennes, France
| | - Rudy Covis
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France
| | - Jean-Paul Guegan
- CNRS, ISCR-UMR 6226, Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes, F-35000 Rennes, France
| | - Jean-Charles Robinson
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France
| | - Didier Bereau
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France
| | - Thierry Benvegnu
- CNRS, ISCR-UMR 6226, Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes, F-35000 Rennes, France.
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9
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Hao Y, Lao S, Liu H, Chen X, Ye G, Wang Z, Liao W. Isolation and characterization of a nephroprotective polysaccharide from Dendrobium chrysotoxum Lindl against LPS-induced acute kidney injury mice. Int J Biol Macromol 2023; 253:126614. [PMID: 37652331 DOI: 10.1016/j.ijbiomac.2023.126614] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/12/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
The structure and bioactivity of a novel polysaccharide from Dendrobium Chrysotoxum Lindl (DCP-1) were investigated. The crude polysaccharides of Dendrobium Chrysotoxum Lindl (DCP) were extracted by hot water extraction, and the protein was removed by enzymatic hydrolysis and Sevage. After purification, the chemical structure of polysaccharides was identified by infrared spectroscopy, methylation analysis and nuclear magnetic resonance spectroscopy. Then, a mouse model of acute kidney injury (AKI) was constructed using lipopolysaccharide (LPS), and pretreated with DCP. Structure characterization demonstrated that the number-average molecular weight and mass average molar mass of DCP-1 were 28.43 kDa and 15.00 kDa, respectively. DCP-1 mainly consisted of mannose (37.8 %) and glucose (55.6 %). The main linkage types of DCP-1 were contained 1,4-Linked Manp and 1,4-Linked Glcp. And DCP-1 was demonstrated to be an O-acetylglucomannan with β-ᴅ-configuration in pyranoid form. Besides, the bioactivity of DCP was further investigated. The results showed that DCP exhibited notable anti-inflammatory activity in LPS-induced AKI mice. After treated with DCP, the creatinine (CREA) and urea nitrogen (BUN) in serum were successfully down-regulated in AKI mice. DCP treatment prevented the characteristic morphological changes of LPS-induced renal tubular injury. The results showed that DCP treatment significantly reduced the concentration of oxidative damage indicators (MDA, SOD) and the expression of inflammatory indices (TNF-α, IL-6, MCP-1, COX-2). In general, the newly extracted polysaccharide DCP showed excellent nephroprotective effect, which enabled it to be an ideal natural medicine for kidney diseases therapy.
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Affiliation(s)
- Yuting Hao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China
| | - Shenghui Lao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China
| | - Hailin Liu
- Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xiao Chen
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China
| | - Guangying Ye
- Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zaihua Wang
- Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Wenzhen Liao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, China.
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10
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Wu W, Zhao Z, Zhao Z, Zhang D, Zhang Q, Zhang J, Fang Z, Bai Y, Guo X. Structure, Health Benefits, Mechanisms, and Gut Microbiota of Dendrobium officinale Polysaccharides: A Review. Nutrients 2023; 15:4901. [PMID: 38068759 PMCID: PMC10708504 DOI: 10.3390/nu15234901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/18/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Dendrobium officinale polysaccharides (DOPs) are important active polysaccharides found in Dendrobium officinale, which is commonly used as a conventional food or herbal medicine and is well known in China. DOPs can influence the composition of the gut microbiota and the degradation capacity of these symbiotic bacteria, which in turn may determine the efficacy of dietary interventions. However, the necessary analysis of the relationship between DOPs and the gut microbiota is lacking. In this review, we summarize the extraction, structure, health benefits, and related mechanisms of DOPs, construct the DOPs-host axis, and propose that DOPs are potential prebiotics, mainly composed of 1,4-β-D-mannose, 1,4-β-D-glucose, and O-acetate groups, which induce an increase in the abundance of gut microbiota such as Lactobacillus, Bifidobacterium, Akkermansia, Bacteroides, and Prevotella. In addition, we found that when exposed to DOPs with different structural properties, the gut microbiota may exhibit different diversity and composition and provide health benefits, such as metabolism regulations, inflammation modulation, immunity moderation, and cancer intervention. This may contribute to facilitating the development of functional foods and health products to improve human health.
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Affiliation(s)
- Weijie Wu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.W.); (Z.Z.); (Z.Z.); (D.Z.); (Q.Z.); (Y.B.)
| | - Ziqi Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.W.); (Z.Z.); (Z.Z.); (D.Z.); (Q.Z.); (Y.B.)
| | - Zhaoer Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.W.); (Z.Z.); (Z.Z.); (D.Z.); (Q.Z.); (Y.B.)
| | - Dandan Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.W.); (Z.Z.); (Z.Z.); (D.Z.); (Q.Z.); (Y.B.)
| | - Qianyi Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.W.); (Z.Z.); (Z.Z.); (D.Z.); (Q.Z.); (Y.B.)
| | - Jiayu Zhang
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China;
| | - Zhengyi Fang
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China;
| | - Yiling Bai
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.W.); (Z.Z.); (Z.Z.); (D.Z.); (Q.Z.); (Y.B.)
| | - Xiaohui Guo
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.W.); (Z.Z.); (Z.Z.); (D.Z.); (Q.Z.); (Y.B.)
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11
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Chang S, Chen X, Chen Y, You L, Hileuskaya K. UV/H 2O 2-Degraded Polysaccharides from Sargassum fusiforme: Purification, Structural Properties, and Anti-Inflammatory Activity. Mar Drugs 2023; 21:561. [PMID: 37999385 PMCID: PMC10672335 DOI: 10.3390/md21110561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023] Open
Abstract
The main purpose of this study was to analyze the structural properties and anti-inflammatory activity of the purified fractions derived from UV/H2O2-degraded polysaccharides from Sargassum fusiforme. Results indicated that twofractions with different monosaccharide compositions and morphological characteristics, PT-0.25 (yield 39.5%) and PT-0.5 (yield 23.9%), were obtained. The average molecular weights of PT-0.25 and PT-0.5 were 14.52 kDa and 22.89 kDa, respectively. In addition, PT-0.5 exhibited better anti-inflammatory activity with a clear dose dependence. The mechanism was associated with the inhibition of LPS-activated Toll-like receptor 4-mediated inflammatory pathways in RAW264.7 cells. The results showed that PT-0.5 was a complex polysaccharide mainly composed of 4-Fucp, t-Manp, 6-Galp, t-Fucp, and 3,4-GlcAp. These results would provide theoretical support for studying the structural properties and biological activities of UV/H2O2-degraded polysaccharides.
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Affiliation(s)
- Shiyuan Chang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (S.C.); (X.C.); (Y.C.)
| | - Xiaoyong Chen
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (S.C.); (X.C.); (Y.C.)
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Yifan Chen
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (S.C.); (X.C.); (Y.C.)
| | - Lijun You
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (S.C.); (X.C.); (Y.C.)
- Overseas Expertise Introduction Center for Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
| | - Kseniya Hileuskaya
- Institute of Chemistry of New Materials, National Academy of Sciences of Belarus, 36F. Skaryna Str., 220141 Minsk, Belarus;
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12
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Hao L, Shi X, Qin S, Dong J, Shi H, Wang Y, Zhang Y. Genome-wide identification, characterization and transcriptional profile of the SWEET gene family in Dendrobium officinale. BMC Genomics 2023; 24:378. [PMID: 37415124 DOI: 10.1186/s12864-023-09419-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 05/31/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Dendrobium officinale Kimura et Migo (D. officinale) is a well-known traditional Chinese medicine with high content polysaccharides in stems. The SWEET (Sugars Will Eventually be Exported Transporters) family is a novel class of sugar transporters mediating sugar translocation among adjacent cells of plants. The expression patterns of SWEETs and whether they are associated with stress response in D. officinale remains uncovered. RESULTS Here, 25 SWEET genes were screened out from D. officinale genome, most of which typically contained seven transmembrane domains (TMs) and harbored two conserved MtN3/saliva domains. Using multi-omics data and bioinformatic approaches, the evolutionary relationship, conserved motifs, chromosomal location, expression patterns, correlationship and interaction network were further analyzed. DoSWEETs were intensively located in nine chromosomes. Phylogenetic analysis revealed that DoSWEETs were divided into four clades, and conserved motif 3 specifically existed in DoSWEETs from clade II. Different tissue-specific expression patterns of DoSWEETs suggested the division of their roles in sugar transport. In particular, DoSWEET5b, 5c, and 7d displayed relatively high expression levels in stems. DoSWEET2b and 16 were significantly regulated under cold, drought, and MeJA treatment, which were further verified using RT-qPCR. Correlation analysis and interaction network prediction discovered the internal relationship of DoSWEET family. CONCLUSIONS Taken together, the identification and analysis of the 25 DoSWEETs in this study provide basic information for further functional verification in D. officinale.
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Affiliation(s)
- Li Hao
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, PR China
| | - Xin Shi
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, PR China
| | - Shunwang Qin
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, PR China
| | - Jiahong Dong
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, PR China
| | - Huan Shi
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, PR China
| | - Yuehua Wang
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, PR China.
| | - Yi Zhang
- China-Croatia 'Belt and Road' Joint Laboratory on Biodiversity and Ecosystem Services, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China.
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Li PY, Li L, Wang YZ. Traditional uses, chemical compositions and pharmacological activities of Dendrobium: A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 310:116382. [PMID: 36948262 DOI: 10.1016/j.jep.2023.116382] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/23/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dendrobium is a kind of medicine food homology plant. Dendrobium has long been used to strengthen "Yin" and tonify five viscera. AIM OF THIS REVIEW This paper presents a systematic review of the folk usage, chemical composition and pharmacological activity of Dendrobium, aiming to provide a reference for subsequent in-depth understanding and better exploitation of health food, medicine, and natural products. MATERIALS AND METHODS Available information about the genus Dendrobium was collected via Web of Science, PubMed, Science Direct, Scopus, APA-Psy Articles, Google Scholar, Connected Papers, Springer Search, and KNCI. The keywords for this article are Dendrobium, traditional use, chemical diversity and pharmacological activity. Use the "Dictionary of Chinese Ethnic Medicine" to provide 23 kinds of Dendrobium with medicinal value, the Latin name of Dendrobium is verified by the Flora of China (www.iplant.cn), and its species distribution and related information are collected. RESULTS There are 78 species of Dendrobium in China, 14 of which are endemic to China. At present, 450 compounds including sesquiterpenoids, lignans compounds, phenolic compounds, phenanthrene compounds, bibenzyls, polysaccharides and flavonoids have been isolated and identified from at least 50 species of Dendrobium. Among them, bibenzyls and polysaccharides are the main active components, phenolics and lignans are widely distributed, sesquiterpenes are the most common chemical constituents in genus Dendrobium plants. The most popular research objects are Dendrobium officinale and Dendrobium huoshanense. CONCLUSIONS Based on traditional folk uses, chemical composition and pharmacological studies, Dendrobium is considered a promising medicinal and edible plant with multiple pharmacological activities. In addition, a large number of clinical applications and further studies on single chemical components based on the diversity of chemical structures should be conducted, which will lay the foundation for the scientific utilization of genus Dendrobium.
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Affiliation(s)
- Pei-Yuan Li
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650223, China; College of Biological Resources and Environmental Sciences of Hunan Province, Jishou University, Jishou, 416000, China
| | - Li Li
- College of Biological Resources and Environmental Sciences of Hunan Province, Jishou University, Jishou, 416000, China.
| | - Yuan-Zhong Wang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650223, China.
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Lu MK, Chao CH, Chang TY, Cheng MC, Hsu YC, Chang CC. A branched 2-O sulfated 1,3-/1,4-galactoglucan from Antrodia cinnamomea exhibits moderate antiproliferative and anti-inflammatory activities. Int J Biol Macromol 2023; 241:124559. [PMID: 37100312 DOI: 10.1016/j.ijbiomac.2023.124559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/05/2023] [Accepted: 04/18/2023] [Indexed: 04/28/2023]
Abstract
A sulfated galactoglucan (3-SS) was discovered in Antrodia cinnamomea with antiproliferative and anti-inflammatory activities. Chemical identification of 3-SS resulted in the determination of a partial repeat unit as a 2-O sulfated 1,3-/1,4-linked galactoglucan with a two-residual 1,6-O-β-Glc branch on the 3-O position of a Glc. by monosaccharide analysis and 1D and 2D NMR spectroscopy. The anti-inflammation effects of 3-SS on RAW264.7 macrophage cells, such as IL-6 inhibition, restoration of LPS-induced IκB protein degradation, and inhibited LPS-induced TGFRII protein degradation, were confirmed to occur via AKT, ERK1/2, and p-38. In addition, 3-SS impaired the proliferation of H1975 lung cancer cells through EGFR/ERK/slug signaling. This is the first finding of 2-O sulfated 1,3-/1,4-galactoglucan with 1,6-β-Glc branches with dual functions of anti-inflammatory and antiproliferative activities.
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Affiliation(s)
- Mei-Kuang Lu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan, ROC; Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Chi-Hsein Chao
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC
| | - Tsu-Yuan Chang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | - Ming-Che Cheng
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | - Yu-Chi Hsu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC
| | - Chia-Chuan Chang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC.
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15
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Cai M, Zhu H, Xu L, Wang J, Xu J, Li Z, Yang K, Wu J, Sun P. Structure, anti-fatigue activity and regulation on gut microflora in vivo of ethanol-fractional polysaccharides from Dendrobium officinale. Int J Biol Macromol 2023; 234:123572. [PMID: 36754265 DOI: 10.1016/j.ijbiomac.2023.123572] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 01/27/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023]
Abstract
This study was to investigate the antifatigue, prebiotic effects and their relationships to the structure properties of three ethanol precipitated polysaccharides from Dendrobium officinale (EPDO), as EPDO-40, EPDO-60 and EPDO-80. EPDOs with anti-fatigue activity were screened out by forced swimming test, and blood lactic acid (BLA), blood urea nitrogen (BUN), superoxide dismutase (SOD), liver glycogen, muscle glycogen, and intestinal microflora were investigated. Results showed that purified EPDO-60, 277.3 kDa, with a backbone consisted of 4-Manp and 4-Glcp. EPDO-60 had the best anti-fatigue activity, because it could significantly prolong the forced swimming time, as well as down-regulating the levels of BLA and BUN, increasing SOD. Proportions of Bacteroidetes and Firmicutes and abundance of Lactobacillus and Bifidobacterium in gut microflora increased after treated with EPDO-60. Accordingly, EPDO-60 could affect the community structure of gut microflora, leading to promote the balance of oxidation and antioxidation, and accelerated the fatigue metabolism in vivo.
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Affiliation(s)
- Ming Cai
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China.
| | - Hua Zhu
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Lei Xu
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Jian Wang
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Jing Xu
- Longevity Valley Botanical Co., Ltd., Zhejiang 321200, People's Republic of China
| | - Zhenhao Li
- Longevity Valley Botanical Co., Ltd., Zhejiang 321200, People's Republic of China
| | - Kai Yang
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Jianyong Wu
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Peilong Sun
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
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Luo JH, Li J, Shen ZC, Lin XF, Chen AQ, Wang YF, Gong ES, Liu D, Zou Q, Wang XY. Advances in health-promoting effects of natural polysaccharides: Regulation on Nrf2 antioxidant pathway. Front Nutr 2023; 10:1102146. [PMID: 36875839 PMCID: PMC9978827 DOI: 10.3389/fnut.2023.1102146] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
Natural polysaccharides (NPs) possess numerous health-promoting effects, such as liver protection, kidney protection, lung protection, neuroprotection, cardioprotection, gastrointestinal protection, anti-oxidation, anti-diabetic, and anti-aging. Nuclear factor erythroid 2-related factor 2 (Nrf2) antioxidant pathway is an important endogenous antioxidant pathway, which plays crucial roles in maintaining human health as its protection against oxidative stress. Accumulating evidence suggested that Nrf2 antioxidant pathway might be one of key regulatory targets for the health-promoting effects of NPs. However, the information concerning regulation of NPs on Nrf2 antioxidant pathway is scattered, and NPs show different regulatory behaviors in their different health-promoting processes. Therefore, in this article, structural features of NPs having regulation on Nrf2 antioxidant pathway are overviewed. Moreover, regulatory effects of NPs on this pathway for health-promoting effects are summarized. Furthermore, structure-activity relationship of NPs for health-promoting effects by regulating the pathway is preliminarily discussed. Otherwise, the prospects on future work for regulation of NPs on this pathway are proposed. This review is beneficial to well-understanding of underlying mechanisms for health-promoting effects of NPs from the view angle of Nrf2 antioxidant pathway, and provides a theoretical basis for the development and utilization of NPs in promoting human health.
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Affiliation(s)
- Jiang-Hong Luo
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China
| | - Jing Li
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China
| | - Zi-Chun Shen
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China
| | - Xiao-Fan Lin
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China
| | - Ao-Qiu Chen
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China
| | - Yi-Fei Wang
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China
| | - Er-Sheng Gong
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China.,Key Laboratory of Environment and Health of Ganzhou, Gannan Medical University, Ganzhou, China
| | - Dan Liu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang, College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China
| | - Qi Zou
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China.,Key Laboratory of Environment and Health of Ganzhou, Gannan Medical University, Ganzhou, China
| | - Xiao-Yin Wang
- School of Public Health and Health Management, Gannan Medical University, Ganzhou, China.,Key Laboratory of Environment and Health of Ganzhou, Gannan Medical University, Ganzhou, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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17
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Bensaci N, Abdi A, Ben Aziza H, Aouadi S. Characterization and biological evaluation of Crataegus azarolus fruit polysaccharides. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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18
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Si C, Zeng D, Yu Z, Teixeira da Silva JA, Duan J, He C, Zhang J. Transcriptomic and metabolomic analyses reveal the main metabolites in Dendrobium officinale leaves during the harvesting period. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 190:24-34. [PMID: 36088784 DOI: 10.1016/j.plaphy.2022.08.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 08/25/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Dendrobium officinale, which is a medicine food homology plant, contains many metabolites, especially polysaccharides and flavonoids. Unlike flowers and stems, which are the most frequently harvested organs for a variety of uses, leaves tend to be discarded. This study assessed main metabolites in leaves to identify the most appropriate timing of collection during harvest, which was divided into three stages (S1-S3: 8, 10, and 11 months after sprouting, respectively). Metabolomic and transcriptomic analyses of S1-S3 were performed. Water-soluble polysaccharides (WSPs), flavonoids and free amino acids (FAAs) were detected in leaves. WSPs decreased from S1 to S3 but flavonoids and some FAAs (e.g., phophoserine) increased from S1 to S2, then decreased from S2 to S3. In all three stages, mannose was the dominant monosaccharide among WSPs, followed by glucose. In S2, 35 flavonoids were identified, the most abundant being rutin, schaftoside and vitexin, while 34 FAAs were identified in all three stages, the most abundant being tyrosine, phosphoserine and alanine. A total of 2584, 3414 and 2032 differentially expressed genes (DEGs) were discovered in S1 vs S2, S1 vs S3 and S1 vs S3, respectively. Correlation analysis revealed that five DEGs (DoSUS, DoXYLA, DoFRK, DoGMP, and DoCSLA), two DEGs (DoDFR, and DoANS) and a single DEG (DoPGAM) were involved in the metabolism of WSPs, flavonoids and phosphoserine, respectively. The findings of this study lay a foundation for the commercial exploitation of metabolites in the harvested leaves of D. officinale, and the use of detected DEGs in applied genetic studies.
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Affiliation(s)
- Can Si
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Danqi Zeng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhenming Yu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | | | - Jun Duan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Chunmei He
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Jianxia Zhang
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, 510642, China.
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19
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Qi L, Shi Y, Li C, Liu J, Chong SL, Lim KJ, Si J, Han Z, Chen D. Glucomannan in Dendrobium catenatum: Bioactivities, Biosynthesis and Perspective. Genes (Basel) 2022; 13:1957. [PMID: 36360194 PMCID: PMC9690530 DOI: 10.3390/genes13111957] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 07/13/2024] Open
Abstract
Dendrobium catenatum is a classical and precious dual-use plant for both medicine and food in China. It was first recorded in Shen Nong's Herbal Classic, and has the traditional functions of nourishing yin, antipyresis, tonifying the stomach, and promoting fluid production. The stem is its medicinal part and is rich in active polysaccharide glucomannan. As an excellent dietary fiber, glucomannan has been experimentally confirmed to be involved in anti-cancer, enhancing immunity, lowering blood sugar and blood lipids, etc. Here, the status quo of the D. catenatum industry, the structure, bioactivities, biosynthesis pathway and key genes of glucomannan are systematically described to provide a crucial foundation and theoretical basis for understanding the value of D. catenatum and the potential application of glucomannan in crop biofortification.
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Affiliation(s)
- Luyan Qi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Yan Shi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Cong Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Jingjing Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Sun-Li Chong
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Kean-Jin Lim
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Jinping Si
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Zhigang Han
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Donghong Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
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20
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Wang H, Zheng Z, Wu Z, Song M, Yu Z, Wang K. Structural characterisation and structure-antioxidant activity relationship of polysaccharides from Dendrobium catenatum Lindl. Nat Prod Res 2022:1-7. [PMID: 36214541 DOI: 10.1080/14786419.2022.2130916] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Dendrobium catenatum Lindl. has been long used in China as a functional food and traditional Chinese medicine and polysaccharides from Dendrobium catenatum Lindl. (DOP) exhibited extensive bioactivities. However, studies on the structure-activity relationship of DOP are rarely reported. Here, two polysaccharides named DOP-1 and DOP-2 were obtained, which differed in the ratio of monosaccharide composition and molecular weight. Structural characteristics were elucidated by spectral and chemical analysis. The main structures of DOPs were the linkage of β-(1→4)-D-Manp, with some attached 2-O- or 3-O-acetylated groups. Additionally, the DPPH, hydroxyl and superoxide radicals scavenging assays of DOP-1 and DOP-2 showed that DOP-2 exhibited the higher antioxidant activity, which might be related to its lower molecular weight, higher mannose proportion and lower degree of acetylation, and higher phenolic content. Our results provide a more accurate basis for the application of DOPs in the pharmaceutical and food industries.
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Affiliation(s)
| | - Ziming Zheng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | | | - Mengzi Song
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Zhang Yu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Kaiping Wang
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
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21
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Comparison of the Antioxidant Activities and Polysaccharide Characterization of Fresh and Dry Dendrobium officinale Kimura et Migo. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196654. [PMID: 36235191 PMCID: PMC9572727 DOI: 10.3390/molecules27196654] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/01/2022] [Accepted: 10/02/2022] [Indexed: 11/17/2022]
Abstract
It is generally believed that fresh Dendrobium officinale (FDO) has more significant pharmacological activity than dried Dendrobium officinale (DDO); however, the difference has not been clearly shown. Our study compared their antioxidant properties both in vitro and in vivo, and the molecular weight arrangement and monosaccharide composition of the fresh Dendrobium officinale polysaccharides (FDOPs) and the dried Dendrobium officinale polysaccharides (DDOPs) were analyzed by HPLC-GPC and GC-MS. The results showed that the FDO and its polysaccharides had more significant effects on scavenging DPPH, ABTS, and hydroxyl radicals than the DDO. In addition, both the FDO and DDO significantly reduced lipid peroxidation levels and increased the SOD, T-AOC, CAT, and GSH levels in mice with acute liver damage caused by CCl4, while the FDO and its polysaccharides were more effective. Histopathological analysis further verified the protective effect of the Dendrobium polysaccharides on CCl4-induced liver injury. The determination of the polysaccharides revealed that the polysaccharide and mannose contents of the FDO were significantly higher than their dried counterparts, and the homogeneous arrangement of the polysaccharides in the FDO was degraded into three polysaccharide fragments of different molecular weights in the DDO. Overall, our data identified differences in the antioxidant activities of the FDO and DDO, as well as the reasons for these differences.
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Wong TL, Li LF, Zhang JX, Zhang QW, Zhang XT, Zhou LS, Fung HY, Feng L, Cheng HY, Huo CY, Liu M, Bao WR, Wu WJ, Lai CH, Bai SP, Nie SP, Puno PT, Bik-San Lau C, Leung PC, Han QB, Sun HD. Oligosaccharide analysis of the backbone structure of the characteristic polysaccharide of Dendrobium officinale. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Li B, Wang HY, Huang JH, Xu WF, Feng XJ, Xiong ZP, Dong YJ, Li LZ, He X, Wu HS, Zhang K, Su J, Yu QX, Jiang NH, Lv GY, Chen SH. Polysaccharide, the Active Component of Dendrobium officinale, Ameliorates Metabolic Hypertension in Rats via Regulating Intestinal Flora-SCFAs-Vascular Axis. Front Pharmacol 2022; 13:935714. [PMID: 35899110 PMCID: PMC9310040 DOI: 10.3389/fphar.2022.935714] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/08/2022] [Indexed: 11/21/2022] Open
Abstract
Metabolic hypertension (MH) is the most common type of hypertension worldwide because of unhealthy lifestyles, such as excessive alcohol intake and high-sugar/high-fat diets (ACHSFDs), adopted by humans. Poor diets lead to a decrease in the synthesis of short-chain fatty acids (SCFAs), which are produced by intestinal flora and transferred by G protein-coupled receptors (GPCRs), resulting in impaired gastrointestinal function, disrupted metabolic processes, increased blood pressure (BP), and ultimately, MH. It is not clear whether Dendrobium officinale polysaccharide (DOPS) can mediate its effects by triggering the SCFAs-GPCR43/41 pathway. In this study, DOPS, with a content of 54.45 ± 4.23% and composition of mannose, glucose, and galacturonic acid at mass percentages of 61.28, 31.87, and 2.53%, was isolated from Dendrobium officinale. It was observed that DOPS, given to rats by intragastric administration after dissolution, could lower the BP and improve the abnormal lipid metabolic processes in ACHSFD-induced MH rats. Moreover, DOPS was found to increase the production, transportation, and utilization of SCFAs, while improving the intestinal flora and strengthening the intestinal barrier, as well as increasing the intestinal levels of SCFAs and the expression of GPCR43/41. Furthermore, DOPS improved vascular endothelial function by increasing the expression of GPCR41 and endothelial nitric oxide synthase in the aorta and the nitric oxide level in the serum. However, these effects were all reversed by antibiotic use. These findings indicate that DOPS is the active component of Dendrobium officinale, and it can reverse MH in rats by activating the intestinal SCFAs-GPCR43/41 pathway.
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Affiliation(s)
- Bo Li
- Zhejiang University of Technology, Hangzhou, China
| | | | | | - Wan-Feng Xu
- Zhejiang University of Technology, Hangzhou, China
| | | | | | | | - Lin-Zi Li
- Zhejiang University of Technology, Hangzhou, China
| | | | - Han-Song Wu
- Zhejiang University of Technology, Hangzhou, China
| | - Ke Zhang
- Zhejiang University of Technology, Hangzhou, China
| | - Jie Su
- Zhejiang University of Technology, Hangzhou, China
| | - Qiao-Xian Yu
- Zhejiang Senyu Co., Ltd, Yiwu, China
- *Correspondence: Qiao-Xian Yu, ; Ning-Hua Jiang, ; Gui-Yuan Lv, ; Su-Hong Chen,
| | - Ning-Hua Jiang
- The Second Affiliated Hospital of Jiaxing University, Jaxing, China
- *Correspondence: Qiao-Xian Yu, ; Ning-Hua Jiang, ; Gui-Yuan Lv, ; Su-Hong Chen,
| | - Gui-Yuan Lv
- Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Qiao-Xian Yu, ; Ning-Hua Jiang, ; Gui-Yuan Lv, ; Su-Hong Chen,
| | - Su-Hong Chen
- Zhejiang University of Technology, Hangzhou, China
- *Correspondence: Qiao-Xian Yu, ; Ning-Hua Jiang, ; Gui-Yuan Lv, ; Su-Hong Chen,
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Structural characterization and biological evaluation of a new O-acetyl-1,4-linked-β-d-mannan possessed potential application in hydrophilic polymer materials from Dendrobium devonianum. Int J Biol Macromol 2022; 213:328-338. [PMID: 35594938 DOI: 10.1016/j.ijbiomac.2022.05.098] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/05/2022] [Accepted: 05/12/2022] [Indexed: 01/17/2023]
Abstract
To explore the active polysaccharides from Dendrobium devonianum, a novel O-acetylmannan (DDP-1) with molecular weight of 117 kDa was isolated from D. devonianum. The chemical and instrumental analysis indicated that the DDP-1 was a homopolysaccharide containing a backbone chain composed of →4)-β-d-Manp-(1 → (71.4%) residue with internal →4)-2-O-acetyl-β-d-Manp-(1 → (14.2%), →4)-3-O-acetyl-β-d-Manp-(1 → (7.1%), and non-reducing end β-d-Manp-(1 → (7.3%) residues. Anticancer assay in vitro revealed that DDP-1 had anticancer activity against the growth of HepG2 and MCF-7 cancer cells. Moreover, cytokine secretion assays also presented that DDP-1 can promote cytokine production of TNF-α and IL-6 in THP-1 macrophage stimulated by PMA. Finally, the effects of isolation and purification on the microstructure of DDP-1 was studied by scanning electron microscope. The morphological features of DDP-1 indicated that DDP-1 hold high potential application in hydrophilic polymer materials.
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25
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Si C, He C, Teixeira da Silva JA, Yu Z, Duan J. Metabolic accumulation and related synthetic genes of O-acetyl groups in mannan polysaccharides of Dendrobium officinale. PROTOPLASMA 2022; 259:641-657. [PMID: 34251532 DOI: 10.1007/s00709-021-01672-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/20/2021] [Indexed: 06/13/2023]
Abstract
Mannan polysaccharides (MPs), which contain substituted O-acetyl groups in their backbone, are abundant in the medicinal plant Dendrobium officinale. Acetyl groups can influence the physiological and biochemical properties of polysaccharides, which mainly accumulate in the stems of D. officinale at four developmental stages (S1-S4), showing an increasing trend and a link with water-soluble polysaccharides (WSPs) and mannose. The genes coding for enzymes that catalyze O-acetyl groups to MPs are unknown in D. officinale. The TRICHOME BIREFRINGENCE-LIKE (TBL) gene family contains TBL and DUF231 domains that can transfer O-acetyl groups to various polysaccharides. Based on an established D. officinale genome database, 37 DoTBL genes were identified. Analysis of cis-elements in the promoter region showed that DoTBL genes might respond to different hormones and abiotic stresses. Most of the genes with MeJA-responsive elements were upregulated or downregulated after treatment with MeJA. qRT-PCR results demonstrated that DoTBL genes had significantly higher expression levels in stems and leaves than in roots. Eight DoTBL genes showed relatively higher expression at S2-S4 stages, which showed a link with the content of WSPs and O-acetyl groups. DoTBL35 and its homologous gene DoTBL34 displayed the higher mRNA level in different organs and developmental stages, which might participate in the acetylation of MPs in D. officinale. The subcellular localization of DoTBL34 and DoTBL35 reveals that the endoplasmic reticulum may play an important role in the acetylation of MPs.
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Affiliation(s)
- Can Si
- Key Laboratory of South China Agricultural Plant Molecular Analysis of Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunmei He
- Key Laboratory of South China Agricultural Plant Molecular Analysis of Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Jaime A Teixeira da Silva
- Independent Researcher, P. O. Box 7, Miki-cho post office, Ikenobe 3011-2, Miki-cho, Kita-gun, Kagawa-ken, 761-0799, Japan
| | - Zhenming Yu
- Key Laboratory of South China Agricultural Plant Molecular Analysis of Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Jun Duan
- Key Laboratory of South China Agricultural Plant Molecular Analysis of Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
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26
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Jiang M, Li S, Zhao C, Zhao M, Xu S, Wen G. Identification and analysis of sucrose synthase gene family associated with polysaccharide biosynthesis in Dendrobium catenatum by transcriptomic analysis. PeerJ 2022; 10:e13222. [PMID: 35402092 PMCID: PMC8992646 DOI: 10.7717/peerj.13222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/14/2022] [Indexed: 01/12/2023] Open
Abstract
Background Dendrobium catenatum is a valuable traditional medicinal herb with high commercial value. D. catenatum stems contain abundant polysaccharides which are one of the main bioactive components. However, although some genes related to the synthesis of the polysaccharides have been reported, more key genes need to be further elucidated. Results In this study, the contents of polysaccharides and mannose in D. catenatum stems at four developmental stages were compared, and the stems' transcriptomes were analyzed to explore the synthesis mechanism of the polysaccharides. Many genes involved in starch and sucrose metabolisms were identified by KEGG pathway analysis. Further analysis found that sucrose synthase (SUS; EC 2.4.1.13) gene maybe participated in the polysaccharide synthesis. Hence, we further investigated the genomic characteristics and evolution relationships of the SUS family in plants. The result suggested that the SUS gene of D. catenatum (DcSUS) had undergone the expansion characterized by tandem duplication which might be related to the enrichment of the polysaccharides in D. catenatum stems. Moreover, expression analyses of the DcSUS displayed significant divergent patterns in different tissues and could be divided into two main groups in the stems with four developmental stages. Conclusion In general, our results revealed that DcSUS is likely involved in the metabolic process of the stem polysaccharides, providing crucial clues for exploiting the key genes associated with the polysaccharide synthesis.
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Affiliation(s)
- Min Jiang
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), School of Life Sciences, Fudan University, Shanghai, China
| | - Shangyun Li
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Changling Zhao
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Mingfu Zhao
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Shaozhong Xu
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Guosong Wen
- Research & Development Center for Heath Product, College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
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27
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Liu J, Yu L, Wang C, Zhang Y, Xi H, Si J, Zhang L, Yan J. Preparation, Structural Features and in vitro Immunostimulatory Activity of a Glucomannan From Fresh Dendrobium catenatum Stems. Front Nutr 2022; 8:823803. [PMID: 35178419 PMCID: PMC8843939 DOI: 10.3389/fnut.2021.823803] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 12/30/2021] [Indexed: 02/02/2023] Open
Abstract
Dendrobium catenatum polysaccharides (DCPs) have attracted attention due to their multiple physiological activities and health benefits. In this study, a novel water-soluble DCP was obtained from fresh D. catenatum stems through three-phase partitioning and ethanol precipitation at room temperature. Its structural characteristics, rheological property, and in vitro immunostimulatory activity were evaluated. Results demonstrated that DCP was a homogenous polysaccharide with a carbohydrate content of 92.75% and a weight-average molecular weight of 2.21 × 105 Da. This polysaccharide is an O-acetylated glucomannan comprised by glucose, mannose, and galacturonic acid in a molar ratio of 30.2:69.5:0.3 and mainly comprises (1→4)-β-D-mannopyranosyl (Manp), 2-O-acetyl-(1→4)-β-D-Manp, (1→6)-α-D-glucopyranosyl (Glcp), and (1→4)-α-D-Glcp residues. DCP exhibits an extended rigid chain in an aqueous solution and favorable steady shear fluid and dynamic viscoelastic behaviors. In vitro immunostimulating assays indicated that DCP activates RAW264.7 cells, thus markedly promoting macrophage proliferation and phagocytosis and increasing the levels of nitric oxide, interferon-γ, interleukin-6, and interleukin-1β. Moreover, the presence of O-acetyl group and high Mw in DCP might be responsible for its potent immunostimulatory activity in vitro. Therefore, our data suggested that DCP could be developed as a promising immunostimulant in functional food and pharmaceutical industries.
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Affiliation(s)
- Jingjing Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Luyao Yu
- Department of Pharmaceutical Botany, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Chun Wang
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, China
| | - Yuefan Zhang
- Biomedical Innovation R&D Center, School of Medicine, Shanghai University, Shanghai, China
| | - Hangxian Xi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Jinping Si
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Lei Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Department of Pharmaceutical Botany, School of Pharmacy, Second Military Medical University, Shanghai, China
- Biomedical Innovation R&D Center, School of Medicine, Shanghai University, Shanghai, China
- *Correspondence: Lei Zhang
| | - Jingkun Yan
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, China
- Jingkun Yan ;
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Li M, Trapika IGSC, Tang SYS, Cho JL, Qi Y, Li CG, Li Y, Yao M, Yang D, Liu B, Li R, Yang P, Ma G, Ren P, Huang X, Xie D, Chen S, Li M, Yang L, Leng P, Huang Y, Li GQ. Mechanisms and Active Compounds Polysaccharides and Bibenzyls of Medicinal Dendrobiums for Diabetes Management. Front Nutr 2022; 8:811870. [PMID: 35155528 PMCID: PMC8832146 DOI: 10.3389/fnut.2021.811870] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Medicinal dendrobiums are used popularly in traditional Chinese medicine for the treatment of diabetes, while their active compounds and mechanism remain unclear. This review aimed to evaluate the mechanism and active compounds of medicinal dendrobiums in diabetes management through a systematic approach. METHODS A systematic approach was conducted to search for the mechanism and active phytochemicals in Dendrobium responsible for anti-diabetic actions using databases PubMed, Embase, and SciFinder. RESULTS Current literature indicates polysaccharides, bibenzyls, phenanthrene, and alkaloids are commonly isolated in Dendrobium genusin which polysaccharides and bibenzyls are most aboundant. Many animal studies have shown that polysaccharides from the species of Dendrobium provide with antidiabetic effects by lowering glucose level and reversing chronic inflammation of T2DM taken orally at 200 mg/kg. Dendrobium polysaccharides protect pancreatic β-cell dysfunction and insulin resistance in liver. Dendrobium polysaccharides up-regulate the abundance of short-chain fatty acid to stimulate GLP-1 secretion through gut microbiota. Bibenzyls also have great potency to inhibit the progression of the chronic inflammation in cellular studies. CONCLUSION Polysaccharides and bibenzyls are the major active compounds in medicinal dendrobiums for diabetic management through the mechanisms of lowering glucose level and reversing chronic inflammation of T2DM by modulating pancreatic β-cell dysfunction and insulin resistance in liver as a result from gut microbita regulation.
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Affiliation(s)
- Mingjian Li
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - I. Gusti Surya Chandra Trapika
- Faculty of Medicine and Health, The University of Sydney School of Pharmacy, The University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine, Department of Pharmacology and Therapy, Udayana University, Jimbaran, Indonesia
| | - Suet Yee Sara Tang
- Faculty of Medicine and Health, The University of Sydney School of Pharmacy, The University of Sydney, Sydney, NSW, Australia
| | - Jun-Lae Cho
- Faculty of Medicine and Health, The University of Sydney School of Pharmacy, The University of Sydney, Sydney, NSW, Australia
- Faculty of Engineering and Information Technologies, Centre for Advanced Food Enginomics, The University of Sydney, Sydney, NSW, Australia
| | - Yanfei Qi
- Centenary Institute of Cancer Medicine and Cell Biology, The University of Sydney, Sydney, NSW, Australia
| | - Chun Guang Li
- NICM Health Research Institute, Western Sydney University, Penrith, NSW, Australia
| | - Yujuan Li
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Meicun Yao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Depo Yang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Bowen Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Rong Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ping Yang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guoyi Ma
- The National Center for Natural Products Research, The University of Mississippi, Oxford, MS, United States
| | - Ping Ren
- Institute of TCM-related Comorbidity, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xi Huang
- Institute of TCM-related Comorbidity, Nanjing University of Chinese Medicine, Nanjing, China
| | - Deshan Xie
- Chengdu Tepu Biotech Co., Ltd., Chengdu, China
| | | | - Min Li
- College of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lan Yang
- College of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ping Leng
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Huang
- Chengdu Tepu Biotech Co., Ltd., Chengdu, China
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - George Q. Li
- Faculty of Medicine and Health, The University of Sydney School of Pharmacy, The University of Sydney, Sydney, NSW, Australia
- NICM Health Research Institute, Western Sydney University, Penrith, NSW, Australia
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Wang X, Zhou X, Wang K, Cao X. Structural characterisation and bioactivity of polysaccharides isolated from fermented Dendrobium officinale. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:280-290. [PMID: 34091920 DOI: 10.1002/jsfa.11356] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/26/2021] [Accepted: 06/06/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND A polysaccharide was purified in this study, which was acquired from the fermentation broth of Dendrobium officinale Kimura et Migo. We aimed to investigate the structural features and bioactivity of this polysaccharide. RESULTS The polysaccharide was purified and the main polysaccharide fraction (i.e., DOP-1) was obtained. High-performance gel permeation chromatography (HPGPC) revealed that the molecular weight of DOP-1 was 447.48 kDa. Galactose, glucose and mannose were found to be present in DOP-1 via monosaccharide composition analysis, at a ratio of 1:1.79:6.71. Methylation and nuclear magnetic resonance spectroscopic analysis indicated that the backbone of DOP-1 was →4)-α-d-Glcp-(1 → 4)-α-d-Manp-(1 → 4)-α-d-Manp-(1 → 4,6)-α-d-Manp-(1→, and its repeating units were also preliminarily established. In vitro tests proved that DOP-1 not only protects RAW264.7 macrophages from the cytotoxic effect induced by lipopolysaccharide (LPS), but also inhibits cytokines (i.e., interleukin-6 and tumour necrosis factor-α) induced by LPS. DOP-1 demonstrated good scavenging activity in vitro toward 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radicals, as well as good metal chelating activity. Therefore, DOP-1 has potential antioxidant applications. CONCLUSION The structural characteristics of DOP-1 support its favourable biological activities and lay a strong foundation for further exploration of its structure-activity relationships and activity development, providing experimental data for the development and utilisation of fermentation broth of D. officinale. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Xilai Wang
- School of Food Science and Engineering, University of Hainan, Haikou, China
- Engineering Research Center of Utilization of Tropical Polysaccharide Resources, Ministry of Education, University of Hainan, Haikou, China
| | - Xin Zhou
- School of Food Science and Engineering, University of Hainan, Haikou, China
- Engineering Research Center of Utilization of Tropical Polysaccharide Resources, Ministry of Education, University of Hainan, Haikou, China
| | - Kai Wang
- School of Food Science and Engineering, University of Hainan, Haikou, China
- Department of Biochemistry and Molecular Biology, Hainan Medical College, Haikou, China
| | - Xianying Cao
- School of Food Science and Engineering, University of Hainan, Haikou, China
- Engineering Research Center of Utilization of Tropical Polysaccharide Resources, Ministry of Education, University of Hainan, Haikou, China
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31
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Wen Y, Xiao H, Liu Y, Yang Y, Wang Y, Xu S, Huang S, Hou S, Liang J. Polysaccharides from Dendrobium officinale ameliorate colitis-induced lung injury via inhibiting inflammation and oxidative stress. Chem Biol Interact 2021; 347:109615. [PMID: 34363819 DOI: 10.1016/j.cbi.2021.109615] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/20/2021] [Accepted: 08/04/2021] [Indexed: 01/13/2023]
Abstract
It has been reported that Dendrobium officinale polysaccharides (DOPS) could alleviate colitis in animal model and suppress the activation of NLRP3 inflammasome and β-arrestin1 in vitro. However, it remains unclear whether DOPS has effect on protecting against colitis-induced pulmonary injury. The purpose of this study was to explore the protective effect and mechanism of DOPS on colitis-induced lung injury. A dextran sodium sulfate (DSS)-induced mice colitis model and lipopolysaccharide (LPS)-stimulated BEAS-2B cells model were applied in this study. The results showed that DOPS treatment restored histopathological changes, reduced inflammatory cells infiltration, pro-inflammatory cytokines levels, reactive oxygen species (ROS) formation and MDA generation, and increased anti-oxidative enzymes activities including SOD and GSH-Px in colitis mice. Further investigation showed that DOPS significantly inhibited the protein expression of TLR4, and apparently up-regulated proteins expressions of nuclear-Nrf2, HO-1 and NQO-1 in lung tissues of colitis mice and in BEAS-2B cells. These results indicated that DOPS significantly inhibited inflammation and oxidative stress to alleviate colitis-induced secondary lung injury, and its mechanisms are closely related to the inhibition of TLR4 signaling pathway and the activation of Nrf2 signaling pathway. DOPS may be a promising drug for alleviating colitis-induced lung injury.
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Affiliation(s)
- Yifan Wen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Hongyu Xiao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Ying Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Yiqi Yang
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, PR China
| | - Yumin Wang
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, PR China
| | - Shijie Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Song Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
| | - Shaozhen Hou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
| | - Jian Liang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
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Chen WH, Wu JJ, Li XF, Lu JM, Wu W, Sun YQ, Zhu B, Qin LP. Isolation, structural properties, bioactivities of polysaccharides from Dendrobium officinale Kimura et. Migo: A review. Int J Biol Macromol 2021; 184:1000-1013. [PMID: 34197847 DOI: 10.1016/j.ijbiomac.2021.06.156] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022]
Abstract
Dendrobium officinale Kimura et Migo (D. officinale) is used as herbal medicine and new food resource in China, which is nontoxic and harmless, and can be used as common food. Polysaccharide as one of the main bioactive components in D. officinale, mainly composed of glucose and mannose (Manp: Glcp = 2.01:1.00-8.82:1.00), along with galactose, xylose, arabinose, and rhamnose in different molar ratios and types of glycosidic bonds. Polysaccharides of D. officinale exhibit a variety of biological effects, including immunomodulatory, anti-tumor, gastro-protective, hypoglycemic, anti-inflammatory, hepatoprotective, and vasodilating effects. This paper presents the extraction, purification, structural characteristics, bioactivities, structure-activity relationships and analyzes gaps in the current research on D. officinale polysaccharides. In addition, based on in vitro and in vivo experiments, the possible mechanisms of bioactivities of D. officinale polysaccharides were summarized. We hope that this work may provide helpful references and promising directions for further study and development of D. officinale polysaccharides.
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Affiliation(s)
- Wen-Hua Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China
| | - Jian-Jun Wu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China
| | - Xue-Fei Li
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China
| | - Jie-Miao Lu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China
| | - Wei Wu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China
| | - Yi-Qi Sun
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China
| | - Bo Zhu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China.
| | - Lu-Ping Qin
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR China.
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Qu J, Tan S, Xie X, Wu W, Zhu H, Li H, Liao X, Wang J, Zhou ZA, Huang S, Lu Q. Dendrobium Officinale Polysaccharide Attenuates Insulin Resistance and Abnormal Lipid Metabolism in Obese Mice. Front Pharmacol 2021; 12:659626. [PMID: 34194325 PMCID: PMC8236886 DOI: 10.3389/fphar.2021.659626] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/01/2021] [Indexed: 12/16/2022] Open
Abstract
Objectives: Dendrobium officinale polysaccharide (DOP) is the main active ingredient in a valuable traditional Chinese medicine, which exerts several pharmacological activities including hepatoprotection and hypoglycemic effects. However, the effects of DOP on obesity-associated insulin resistance (IR) and lipid metabolism remain unknown. This study aimed to investigate the role of DOP in IR and abnormal lipid metabolism in obese mice. Methods: IR models were established using 3T3-L1 adipocytes, C2C12 myocytes, and primary cultured hepatocytes exposed to palmitate acid. After treatment with DOP, insulin-stimulated glucose uptake, glucose release, and AKT phosphorylation was detected. Fasting blood glucose, fasting serum insulin, the glucose tolerance test (GTT), and the insulin tolerance test (ITT) were measured to evaluate IR of obese mice. Lipid analysis was conducted to evaluate the effects of DOP on lipid metabolism in obese mice. Results:In vitro, DOP treatment ameliorated palmitic acid-induced IR in adipocytes, myocytes, and hepatocytes. DOP regulated cellular insulin sensitivity via the peroxisome proliferator-activated receptor-γ (PPAR-γ). Furthermore, administration of DOP significantly reduced the IR and visceral adipose tissue (VAT) inflammation of diet-induced obese (DIO) and the genetically-induced obesity mice (ob/ob) mouse models. In addition, DOP treatment attenuated the high-fat diet (HFD)-induced liver lipid accumulation by reducing liver triglycerides (TG), plasma free fatty acid (FFA), serum cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C) levels, while increasing HDL-C levels. Conclusion: DOP could improve obesity-associated IR and abnormal lipid metabolism through its activities on PPAR-γ, and may serve as a potential therapeutic agent for obesity-associated insulin resistance and lipid metabolism disorder.
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Affiliation(s)
- Jian Qu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Shengyu Tan
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xinyan Xie
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenqiang Wu
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Haihong Zhu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hang Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaobo Liao
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jiaojiao Wang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhi-Ang Zhou
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Song Huang
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qiong Lu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
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Shang ZZ, Xu TT, Wang CQ, Li QM, Zha XQ, Pan LH, Luo JP. Bioactivity-guided investigation for isolation and immunoregulatory potential of polysaccharides from Dendrobium chrysotoxum stems. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wang YJ, Wan DL, Li QM, Zha XQ, Luo JP. Structural characteristics and immunostimulatory activities of a new polysaccharide from Dendrobium fimbriatum Hook. Food Funct 2021; 12:3057-3068. [PMID: 33710189 DOI: 10.1039/d0fo03336g] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A new polysaccharide (cDFP-W1) with high immunostimulatory activities was isolated from the stems of Dendrobium fimbriatum Hook. The analysis of the physicochemical properties showed that cDFP-W1 consisted of mannose and glucose in a molar ratio of 1 : 3.84, and its relative molecular weight was 4.0 × 104 Da. Structural analysis implied that the linear backbone of cDFP-W1 was composed of α-1,4-d-Glcp, β-1,4-d-Manp, 3-O-acetyl-α-1,4-d-Glcp and α-1,4,6-d-Glcp, and its branches were the terminal β-d-Manp that was attached to the C-6 position of α-1,4,6-d-Glcp. An in vivo immunostimulatory assay exhibited that cDFP-W1 at 200 mg kg-1 could significantly increase the proportions of CD4+ T-cell subpopulations, B cells, natural killer cells and dendritic cells, decrease the proportion of CD8+ T-cell subpopulations, and upregulate the percentage of activated macrophages (p < 0.01) in the spleen of mice. An in vitro immunostimulatory assay revealed that cDFP-W1 could effectively promote the proliferation of spleen lymphocytes, enhance the proliferation and phagocytosis of macrophage RAW264.7 cells, and stimulate the mRNA expression and extracellular release of NO, TNF-α and IL-1β of RAW264.7 cells. The western blot experiment suggested that the immunostimulatory activities of cDFP-W1 were closely related to the activation of MAPKs, NF-κB and PI3K/Akt signaling pathways.
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Affiliation(s)
- Yu-Jing Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
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He Y, Peng H, Zhang H, Liu Y, Sun H. Structural characteristics and immunopotentiation activity of two polysaccharides from the petal of Crocus sativus. Int J Biol Macromol 2021; 180:129-142. [PMID: 33676979 DOI: 10.1016/j.ijbiomac.2021.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 12/16/2022]
Abstract
The current experiments were designed to explore the structural features and immunopotentiation activity of two homogeneous polysaccharides PCSPA and PCSPB prepared from Crocus sativus petals using DEAE-Sephadex A-50 and Sephadex G200 column chromatography. The structures of PCSPA and PCSPB were systematically characterized using extensive chemical and spectroscopic methods including colorimetry, HPGPC-RID, GC-MS, Smith degradations, methylation, solvolytic desulfation, UV, FT-IR, NMR, SEM, and AFM. The average molecular weights of PCSPA and PCSPB were 1.98 × 106 and 2.53 × 106 Da, respectively. PCSPA consisted of Gal, Rha, Ara, and Xyl in the molar ratio of 16:5:7:3, while PCSPB were composed of Gal, Glc, Man, Rha, Ara, and Xyl with molar ratio of 16:2:7:19:15:16. Both polysaccharides contained sulfonic and acetyl groups. PCSPA and PCSPB significantly activated RAW264.7 cells by enhancing the phagocytic activity, up-regulating the expression of surface molecules, promoting the production and mRNA expression of cytokines and chemokines via MAPK and NF-κB pathway.
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Affiliation(s)
- Yanfei He
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Haoxuan Peng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Huifang Zhang
- Medical College, Jinhua Polytechnic, Jinhua 321000, China
| | - Yaqin Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hongxiang Sun
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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Xi H, Liu J, Li Q, Chen X, Liu C, Zhao Y, Yao J, Chen D, Si J, Liu C, Zhang L. Genome-wide identification of Cellulose-like synthase D gene family in Dendrobium catenatum. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1941252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Hangxian Xi
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Jingjing Liu
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Qing Li
- Department of Pharmaceutical Botany, School of Pharmacy, Naval Medical University, Shanghai, PR China
| | - Xueliang Chen
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Chen Liu
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Yuxue Zhao
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Jinbo Yao
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Donghong Chen
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Jinping Si
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
| | - Chenghong Liu
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences\Shanghai Key Laboratory of Agricultural Genetics and Breeding, Shanghai, PR China
| | - Lei Zhang
- State Key Laboratory of Subtropical Silviculture, SFGA Engineering Research Center for Dendrobium catenatum (D. officinale), Zhejiang A&F University, Hangzhou, Zhejiang, PR China
- Department of Pharmaceutical Botany, School of Pharmacy, Naval Medical University, Shanghai, PR China
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Shan S, Xiong Y, Liu M, Zeng D, Song C, Baranenko D, Cheng D, Lu W. Structural characterization and immunomodulatory activity of a new polysaccharide isolated from the radix of
Platycodon grandiflorum. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Shan Shan
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients Harbin China
| | - Yi Xiong
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients Harbin China
| | - Mengyao Liu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients Harbin China
| | - Deyong Zeng
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients Harbin China
| | - Chen Song
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients Harbin China
| | - Denis Baranenko
- Biotechnologies of the Third Millennium ITMO University Saint‐Petersburg Russia
| | - Dayou Cheng
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
| | - Weihong Lu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
- National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients Harbin China
- Institute of Extreme Environment Nutrition and Protection Harbin Institute of Technology Harbin China
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Tayyab Rashid M, Ahmed Jatoi M, Safdar B, Wali A, Muhammad Aadil R, Sarpong F, Ma H. Modeling the drying of ultrasound and glucose pretreated sweet potatoes: The impact on phytochemical and functional groups. ULTRASONICS SONOCHEMISTRY 2020; 68:105226. [PMID: 32599166 DOI: 10.1016/j.ultsonch.2020.105226] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/02/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
The influence of ultrasonic frequency (20 kHz) and glucose pretreatments either alone or in combination on the drying of sweet potato slices (3 mm) using a hot-air dryer at 60 °C was tested to study the kinetics modeling, phytochemicals, antioxidant activities, and functional and textural changes of the final dried product. The results indicated that total phenolic content and total flavonoid content were significantly higher in glucose-pretreated samples while antioxidant activities were higher in ultrasound- and glucose-pretreated samples. For vitamin C, much degradation occurred in the glucose-pretreated samples when compared with the other pretreated samples apart from the control. Enzymatic browning made a minor contribution to the ultrasound/glucose-pretreated samples, while no significant differences were noted in the glucose-pretreated samples. A modified Henderson and Pabis (MHP) model, followed by the two-term and Hii models, fitted best among the 15 selected mathematical models. Fourier Transform Infrared Spectroscopy (FTIR) analysis revealed the presence of glucose, phenols, and flavonols in all samples. Microstructural analysis confirmed the hardness (N) in the final glucose-pretreated samples due to glucose layers and less cell damage.
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Affiliation(s)
- Muhammad Tayyab Rashid
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | | | - Bushra Safdar
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Asif Wali
- Department of Agriculture and Food Technology, Karakoram International University, Gilgit 15100, Pakistan
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology, University of Agriculture Faisalabad, 38000 Pakistan
| | - Frederick Sarpong
- Value Addition Division, Oil Palm Research Institute-Council for Scientific and Industrial Research (CSIR), Kade, Ghana
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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Dong X, Yang J, Wang QY, Zhen XT, Liu FM, Zheng H, Cao J. Microextraction assisted multiple heart-cutting and comprehensive two-dimensional liquid chromatography hyphenated to Q-TOF/MS for the determination of multiclass compounds from Dendrobium species. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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41
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Kuang MT, Li JY, Yang XB, Yang L, Xu JY, Yan S, Lv YF, Ren FC, Hu JM, Zhou J. Structural characterization and hypoglycemic effect via stimulating glucagon-like peptide-1 secretion of two polysaccharides from Dendrobium officinale. Carbohydr Polym 2020; 241:116326. [DOI: 10.1016/j.carbpol.2020.116326] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 04/15/2020] [Accepted: 04/15/2020] [Indexed: 12/12/2022]
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Yue H, Zeng H, Ding K. A review of isolation methods, structure features and bioactivities of polysaccharides from Dendrobium species. Chin J Nat Med 2020; 18:1-27. [PMID: 31955820 DOI: 10.1016/s1875-5364(20)30001-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Indexed: 02/08/2023]
Abstract
Dendrobium, orchid, is a traditional Chinese herb medicine applied extensively as tonic and precious food for thou-sands of years recorded in ancient Chinese medical book "Shen Nong's Materia Medica". It's well known that bioactivities are usually related to the ingredients' basis. Based on the previous research, Dendrobium species contain amino acid, sesquiterpenoids, alkaloids and polysaccharides. As the bioactive substances, carbohydrate shows extensive activities in antitumor, antiglycation, immune-enhancing, antivirus, antioxidant, antitumor and etc. Therefore, as the main biologically active substance, the exact structures and latent activities of polysaccharides from Dendrobium species are widely focused on. In this review, we focus on the advancements of extraction methods and diversity of structures and bioactivities of polysaccharides obtained from Dendrobium species.
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Affiliation(s)
- Han Yue
- Glycochemistry and Glycobiology Lab, Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Zeng
- Glycochemistry and Glycobiology Lab, Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kan Ding
- Glycochemistry and Glycobiology Lab, Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Shi XD, Yin JY, Cui SW, Wang Q, Wang SY, Nie SP. Plant-derived glucomannans: Sources, preparation methods, structural features, and biological properties. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.02.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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44
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Yuan Y, Zhang J, Liu X, Meng M, Wang J, Lin J. Tissue-specific transcriptome for Dendrobium officinale reveals genes involved in flavonoid biosynthesis. Genomics 2020; 112:1781-1794. [DOI: 10.1016/j.ygeno.2019.10.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/13/2019] [Indexed: 12/27/2022]
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Yuan Y, Zhang J, Kallman J, Liu X, Meng M, Lin J. Polysaccharide biosynthetic pathway profiling and putative gene mining of Dendrobium moniliforme using RNA-Seq in different tissues. BMC PLANT BIOLOGY 2019; 19:521. [PMID: 31775630 PMCID: PMC6882186 DOI: 10.1186/s12870-019-2138-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 11/14/2019] [Indexed: 05/25/2023]
Abstract
BACKGROUND Dendrobium moniliforme (Linnaeus) Swartz is a well-known plant used in traditional Chinese medicine due to bioactive constituents. Polysaccharides are the main medicinal ingredients, yet no studies have been published on polysaccharide biosynthesis in D. moniliforme. To comprehensively investigate the polysaccharide at the transcription level, we performed de novo transcriptome sequencing for the first time to produce a comprehensive transcriptome of D. moniliforme. RESULTS In our study, a database of 562,580 unigenes (average length = 1115.67 bases) was generated by performing transcriptome sequencing. Based on the gene annotation of the transcriptome, we identified 1204 carbohydrate-active related unigenes against CAZy database, including 417 glycosyltransferase genes (GTs), 780 glycoside hydrolases (GHs), 19 carbohydrate esterases (CEs), 75 carbohydrate-binding modules (CBMs), and 44 polysaccharide lyases (PLs). In the cellulose synthase family, 21 differential expression genes (DEGs) related to polysaccharide were identified. Subsequently, the tissue-specific expression patterns of the genes involved in polysaccharide pathway were investigated, which provide understanding of the biosynthesis and regulation of DMP at the molecular level. The two key enzyme genes (Susy and SPS) involved in the polysaccharide pathway were identified, and their expression patterns in different tissues were further analyzed using quantitative real-time PCR. CONCLUSIONS We determined the content of polysaccharides from Dendrobium moniliforme under different tissues, and we obtained a large number of differential genes by transcriptome sequencing. This database provides a pool of candidate genes involved in biosynthesis of polysaccharides in D. moniliforme. Furthermore, the comprehensive analysis and characterization of the significant pathways are expected to give a better insight regarding the diversity of chemical composition, synthetic characteristics, and the regulatory mechanism which operate in this medical herb.
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Affiliation(s)
- Yingdan Yuan
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, Nanjing, 210037 China
| | - Jinchi Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, Nanjing, 210037 China
| | | | - Xin Liu
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, Nanjing, 210037 China
| | - Miaojing Meng
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, Nanjing, 210037 China
| | - Jie Lin
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, Nanjing, 210037 China
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Hui H, Jin H, Li X, Yang X, Cui H, Xin A, Zhao R, Qin B. Purification, characterization and antioxidant activities of a polysaccharide from the roots of Lilium davidii var. unicolor Cotton. Int J Biol Macromol 2019; 135:1208-1216. [DOI: 10.1016/j.ijbiomac.2019.06.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/03/2019] [Accepted: 06/05/2019] [Indexed: 12/11/2022]
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47
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Tao S, Lei Z, Huang K, Li Y, Ren Z, Zhang X, Wei G, Chen H. Structural characterization and immunomodulatory activity of two novel polysaccharides derived from the stem of Dendrobium officinale Kimura et Migo. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Acemi A, Çobanoğlu Ö, Türker-Kaya S. FTIR-based comparative analysis of glucomannan contents in some tuberous orchids, and effects of pre-processing on glucomannan measurement. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:3681-3686. [PMID: 30638265 DOI: 10.1002/jsfa.9596] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Glucomannan (GM) is a polysaccharide of the mannan family of compounds found in some plant species. The dried and powdered tubers of some orchid species, collectively known as 'salep powder,' are a commercially important crop for human consumption and are one of the primary sources of GM. GM content is the primary indicator for the yield and quality of salep powder. We hypothesized that it would be more practical and accurate to measure GM content within tuber powder directly, prior to any purification or pre-processing. The GM content of tubers of 14 different orchid species was evaluated and compared using Fourier transform infrared (FTIR) spectroscopy and an enzymatic colorimetric method. RESULTS Among the analyzed modes, the sum of the peak areas at 873 and 812 cm-1 , which represent the CH bending attributed to the β-pyranose form of d-glucose and d-mannose, respectively, gave the only confirmation using colorimetric methods. It was found that the tubers of Himantoglossum caprinum and Serapias vomeracea had the highest GM concentrations among the analyzed species. After conducting different pre-processing steps on Serapias vomeracea tubers, it was found that treating the tubers with milk, or high temperature resulted in an apparent increase in GM concentrations. CONCLUSION Himantoglossum caprinum and Serapias vomeracea give the highest yields of GM and should be used for commercial horticulture. GM estimation should be made prior to any pre-processing. FTIR spectroscopy is effective and reliable for directly comparing GM content of different orchid species, without the need for any purification or pre-processing. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Arda Acemi
- Department of Biology, Faculty of Arts and Sciences, Kocaeli University, Kocaeli, Turkey
| | - Özmen Çobanoğlu
- Department of Biology, Faculty of Arts and Sciences, Kocaeli University, Kocaeli, Turkey
| | - Sevgi Türker-Kaya
- Department of Biology, Faculty of Arts and Sciences, Kocaeli University, Kocaeli, Turkey
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Polysaccharides from tubers of Bletilla striata: Physicochemical characterization, formulation of buccoadhesive wafers and preliminary study on treating oral ulcer. Int J Biol Macromol 2019; 122:1035-1045. [DOI: 10.1016/j.ijbiomac.2018.09.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 09/04/2018] [Accepted: 09/10/2018] [Indexed: 11/24/2022]
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Immune enhancement activity of a novel polysaccharide produced by Dendrobium officinale endophytic fungus Fusarium solani DO7. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.12.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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