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Hui A, Chen J, Deng S, Chen Y, He X, Yang L, Zhang W, Wu Z. Phytochemical Profile of Alkaloid Extract from Dendrobium huoshanense and Inhibitory Effects against Oxidative Stress in H 2 O 2 -Induced PC12 Cells. Chem Biodivers 2024; 21:e202301332. [PMID: 38052727 DOI: 10.1002/cbdv.202301332] [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: 08/31/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
This study aimed to explore the alkaloid profile of Dendrobium huoshanense and determine the potential protective effect against oxidative damage. The crude D. huoshanense alkaloid extract (DHAE) was obtained by 70 % ethanol extraction and liquid-liquid partition. DHAE contained specific alkaloid components with abundant 6-hydroxynobiline (58.15 %) and trace dendrobine (3.23 %) in the preliminary HPLC fingerprint and GC-MS analysis, which was distinguished from D. officinale or D. nobile. Subsequently, six alkaloids including 6-hydroxynobiline, 2-hydroxy dendrobine, nobilonine, dendrobine, Findlayines D and trans-dendrochrysanine were identified in the purified DHAE (namely DHSAE-3, DHSAE-3') via further solid phase extraction coupled with UPLC-MS/MS analysis. Meanwhile, pretreatment with DHAE or DHSAE (0.5, 5 μg/mL) increased cell viability by 14.0-57.4 % compared to that of H2 O2 -induced PC12 Model cells. Among them, 5 μg/mL DHSAE-3-treated cells displayed a pronounced reversion than the positive vitamin E (p<0.01). Furthermore, a clear cellular morphological restoration and 38.4 % reduction in intracellular reactive oxidative species level were achieved. Our findings suggest that D. huoshanense has a characteristic alkaloid profile represented by abundant 6-hydroxynobiline, and DHAEs exhibit obvious protection against oxidative neuronal damage. Overall, this study indicates that DHAEs might be used to inhibit oxidative stress and provide a source to develop novel neuroprotective drugs.
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Affiliation(s)
- Ailing Hui
- Engineering Research Center of Bio-Process of Ministry of Education, H, efei University of Technology, Feicui road 420, Hefei, 230601, China
- School of Food and Biological Engineering, Hefei University of Technology, Feicui road 420, Hefei, 230601, China
| | - Jingchao Chen
- Engineering Research Center of Bio-Process of Ministry of Education, H, efei University of Technology, Feicui road 420, Hefei, 230601, China
| | - Shaohuan Deng
- Engineering Research Center of Bio-Process of Ministry of Education, H, efei University of Technology, Feicui road 420, Hefei, 230601, China
| | - Yan Chen
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Jiulong Road 111, Hefei, 230601, China
| | - Xianglin He
- Huoshan County Changchong Medical Materials Development Co., Ltd, Lu'an, 237200, China
| | - Li Yang
- Engineering Research Center of Bio-Process of Ministry of Education, H, efei University of Technology, Feicui road 420, Hefei, 230601, China
| | - Wencheng Zhang
- Engineering Research Center of Bio-Process of Ministry of Education, H, efei University of Technology, Feicui road 420, Hefei, 230601, China
- School of Food and Biological Engineering, Hefei University of Technology, Feicui road 420, Hefei, 230601, China
| | - Zeyu Wu
- Engineering Research Center of Bio-Process of Ministry of Education, H, efei University of Technology, Feicui road 420, Hefei, 230601, China
- School of Food and Biological Engineering, Hefei University of Technology, Feicui road 420, Hefei, 230601, China
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Hu L, Wang S, Zhang L, Shang L, Zong R, Li J, Wu Z, Meng Y, Dai Y, Huang Y, Wei G. Wild imitating vs greenhouse cultivated Dendrobium huoshanense: Chemical quality differences. PLoS One 2024; 19:e0291376. [PMID: 38271357 PMCID: PMC10810538 DOI: 10.1371/journal.pone.0291376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/28/2023] [Indexed: 01/27/2024] Open
Abstract
Dendrobium huoshanense (D. huoshanense) has been used as functional food supplements and herbal medicines for preventing and managing diseases with a long history in China. Due to its endangered natural resources and huge demand, people tend to cultivate D. huoshanense to protect this species. However, the quality of wild and cultivated herbs of the same species may change. This work quantified and compared the main quality traits and chemical components of wild imitating and greenhouse cultivated D. huoshanense with different growth years. As a result, wild and cultivated D. huoshanense had similar chemical composition, but there are significant differences in the content of many ingredients (polysaccharides, flavonoids, nucleosides, bibenzyls, lignans and volatile compounds). And the contents of many of these components increased with growing years. In addition, multivariate statistical analyses have been applied to classify and evaluate samples from different cultivation modes according to these components. In conclusion, our results demonstrated that the overall quality of greenhouse cultivated D. huoshanense was not as good as wild-grown, but this mode can be a promising and sustainable way of producing D. huoshanense.
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Affiliation(s)
- Li Hu
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shiwen Wang
- Jiuxianzun Dendrobium Huoshanense Co. Ltd., Lu’an, China
| | - Lin Zhang
- The First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | | | - Ruiye Zong
- Jiuxianzun Dendrobium Huoshanense Co. Ltd., Lu’an, China
| | - Jinyan Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhanghua Wu
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuanjun Meng
- The First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yafeng Dai
- Jiuxianzun Dendrobium Huoshanense Co. Ltd., Lu’an, China
| | - Yuechun Huang
- The First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gang Wei
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
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Yang WH, Hao JW, Chen ND, Li J. Development of a joint derivatization protocol for the unequivocal identification of the monosaccharide composition in four dendrobium polysaccharides and free monosaccharide by GC-MS. Biomed Chromatogr 2023; 37:e5743. [PMID: 37700561 DOI: 10.1002/bmc.5743] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 08/02/2023] [Accepted: 08/23/2023] [Indexed: 09/14/2023]
Abstract
The determination of monosaccharides is crucial for studying the structure of polysaccharides and the composition of free monosaccharides in living organisms. Based on previous derivatization gas chromatography-mass spectrometry (GC-MS) methods, we aimed to develop a novel analytical protocol for better quantifying monosaccharides. In this study, sugar alcohol acetylation, saccharonitrile acetylation, silylation and a combination of sugar alcohols acetylation and saccharonitrile acetylation were compared. The optimal method was verified with the monosaccharide determination of four polysaccharides and four free monosaccharides from Dendrobium. The results showed that the novel combined derivatization method was superior to the other three methods in terms of content analysis of monosaccharides. Furthermore, it possessed good linearity (all calibration curves showed relative coefficients ≥ 0.999), sensitivity, precision (relative standard deviation < 2%), and accuracy (recovery, 95.7-105%). Finally, the novel method established in this study was successfully employed in determining the monosaccharide composition of four polysaccharides and four free monosaccharide samples from Dendrobium.
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Affiliation(s)
- Wei-Han Yang
- College of Biothchnology and Pharmaceutical Engineering, West Anhui University, Lu'an, China
- College of Pharmacy, Anhui University of Chinese Medicine, He'fei, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource, Lu'an, China
| | - Jing-Wen Hao
- College of Biothchnology and Pharmaceutical Engineering, West Anhui University, Lu'an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource, Lu'an, China
| | - Nai-Dong Chen
- College of Biothchnology and Pharmaceutical Engineering, West Anhui University, Lu'an, China
- College of Pharmacy, Anhui University of Chinese Medicine, He'fei, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource, Lu'an, China
| | - Jiao Li
- College of Biothchnology and Pharmaceutical Engineering, West Anhui University, Lu'an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resource, Lu'an, 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: 0] [Impact Index Per Article: 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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Ye HY, Shang ZZ, Zhang FY, Zha XQ, Li QM, Luo JP. Dendrobium huoshanense stem polysaccharide ameliorates alcohol-induced gastric ulcer in rats through Nrf2-mediated strengthening of gastric mucosal barrier. Int J Biol Macromol 2023; 236:124001. [PMID: 36907308 DOI: 10.1016/j.ijbiomac.2023.124001] [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: 12/03/2022] [Revised: 02/22/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023]
Abstract
This study aimed to explore whether Dendrobium huoshanense stem polysaccharide (cDHPS) ameliorates alcohol-induced gastric ulcer (GU) through the strengthening effect of the gastric mucosal barrier in rats and its potential mechanism. In normal rats, the pretreatment of cDHPS effectively strengthened gastric mucosal barrier by increasing mucus secretion and tight junction protein expression. In GU rats, cDHPS supplementation effectively alleviated alcohol-induced gastric mucosal injury and nuclear factor κB (NF-κB)-driven inflammation by strengthening gastric mucosal barrier. Moreover, cDHPS significantly activated nuclear factor E2-related factor 2 (Nrf2) signaling and promoted antioxidant enzymes activities in both normal and GU rats. These results suggested that the pretreatment of cDHPS could strengthen gastric mucosal barrier to inhibit oxidative stress and NF-κB-driven inflammation induced gastric mucosal injury, which was likely related to the activation of Nrf2 signaling.
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Affiliation(s)
- Hui-Yu Ye
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Zhen-Zi Shang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Feng-Yun Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, People's Republic of China
| | - Xue-Qiang Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Qiang-Ming Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China.
| | - Jian-Ping Luo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China.
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Wang Y, Han J, Yue Y, Wu Y, Zhang W, Xia W, Wu M. Purification, structure identification and immune activity of a neutral polysaccharide from Cynanchum Auriculatum. Int J Biol Macromol 2023; 237:124142. [PMID: 36972816 DOI: 10.1016/j.ijbiomac.2023.124142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/28/2023] [Accepted: 03/20/2023] [Indexed: 03/28/2023]
Abstract
The crude polysaccharides CAPS and CAP of Cynanchum Auriculatum, which were prepared by degrading starch by single-enzymatic method (α-amylase) and double-enzymatic method (α-amylase and glucoamylase) respectively, were compared. CAP had good water solubility and higher non-starch polysaccharide content. A homogeneous neutral polysaccharide CAPW, with the degree of acetylation about 17 %, was obtained from CAP by anion exchange column chromatography. Its detailed structure was identified by various methods. CAPW, with the weight average molecular weight of 8.4 kDa, was composed of mannose, glucose, galactose, xylose, and arabinose in a molar ratio of 1.27:1.00:0.25:0.10:1.16. The backbone included β-1,4-Manp, β-1,4,6-Manp, β-1,4-Glcp and β-1,4,6-Glcp residues, with branches at the O-6 position of β-1,4,6-Manp and β-1,4,6-Glcp residues, consisting of α-T-Araf, α-1,5-Araf, α-1,2,5-Araf, α-1,3,5-Araf, T-Xylp,1,4-Xylp, β-T-Manp and β-T-Galp residues. In vitro immunological experiments suggested that CAP-W improved the phagocytic ability of macrophages, stimulated the release of NO, TNF-α and IL-6 from RAW264.7 cells, promoted the expression of NF-κB and caused nuclear translocation of NF-κB p65.
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Gu Q, Liu Y, Zhen L, Zhao T, Luo L, Zhang J, Deng T, Wu M, Cheng G, Hu J. The structures of two glucomannans from Bletilla formosana and their protective effect on inflammation via inhibiting NF-κB pathway. Carbohydr Polym 2022; 292:119694. [PMID: 35725182 DOI: 10.1016/j.carbpol.2022.119694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/05/2022] [Accepted: 06/01/2022] [Indexed: 11/17/2022]
Abstract
Bletilla formosana is a traditional Chinese herbal medicine and is widely consumed as foods and medicines in China. However, the chemical structure and bioactivity of its polysaccharides remain unknown. Herein, two new polysaccharides, BFP60 and BFP80, with molecular weights of 3.99 kDa and 10.07 kDa, respectively, were isolated and purified from dried tuber of B. formosana. Structural analysis suggested that BFP60 and BFP80 may have backbone consisted of →4)-β-d-Man-(1→,→4)-β-d-Glc-(1→,→4)-2-O-acetyl-β-d-Man-(1→, and →4)-3-O-acetyl-β-d-Man-(1→. Inflammation assay in LPS-induced RAW264.7 cells showed that the productions of NO and pro-inflammatory cytokines including IL-6, IL-1β, TNF-α, and IFN-γ were significantly reduced, and the expression of iNOS, COX-2, and target proteins in the NF-κB pathway were suppressed after BFP60 and BFP80 pretreatment. These findings indicated that this novel polysaccharide had significant inflammatory protective effects in vitro.
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Affiliation(s)
- Qinghui Gu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yaping Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Li Zhen
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Tianrui Zhao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Lan Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Junyin Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Tuo Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingyi Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guiguang Cheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Jiangmiao Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Natural polysaccharides as potential anti-fibrotic agents: A review of their progress. Life Sci 2022; 308:120953. [PMID: 36103957 DOI: 10.1016/j.lfs.2022.120953] [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: 07/20/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/24/2022]
Abstract
Fibrosis, as a common disease which could be found in nearly all organs, is normally initiated by organic injury and eventually ended in cellular dysfunction and organ failure. Currently, effective and safe therapeutic strategies targeting fibrogenesis still in highly demand. Natural polysaccharides derived from natural resources possess promising anti-fibrosis potential, with no deleterious side effects. Based on the etiology and pathogenesis of fibrosis, this review summarizes the intervention effects and mechanisms of natural polysaccharides in the prevention and treatment of fibrosis. Natural polysaccharides are able to regulate each phase of the fibrogenic response, including primary injury to organs, activation of effector cells, the elaboration of extracellular matrix (ECM) and dynamic deposition. In addition, polysaccharides significantly reduce fibrosis levels in multiple organs including heart, lung, liver and kidney. The investigation of the pathogenesis of fibrosis indicates that mechanisms including the inhibition of TGF-β/Smad, NF-κB, HMGB1/TLR4, cAMP/PKA signaling pathways, MMPs/TIMPs system as well as microRNAs are promising therapeutic targets. Natural polysaccharides can target these mediators or pathways to alleviate fibrosis. The information reviewed here offer new insights into the understanding the protective role of natural polysaccharides against fibrosis, help design further experimental studies related to polysaccharides and fibrotic responses, and shed light on a potential treatment for fibrosis.
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Yu J, Zhao J, Xie H, Cai M, Yao L, Li J, Han L, Chen W, Yu N, Peng D. Dendrobium huoshanense polysaccharides ameliorate ulcerative colitis by improving intestinal mucosal barrier and regulating gut microbiota. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Jiang W, Ruan W, Wang Z. Dendrobium officinale polysaccharide inhibits vascular calcification via anti-inflammatory and anti-apoptotic effects in chronic kidney disease. FASEB J 2022; 36:e22504. [PMID: 35980507 DOI: 10.1096/fj.202200353rrr] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 07/28/2022] [Accepted: 08/05/2022] [Indexed: 11/11/2022]
Abstract
Vascular calcification is very common in patients with chronic kidney disease (CKD), but so far, there is no effective treatment. Dendrobium officinale polysaccharide (DOP), a natural component of Chinese herbal medicine, has been shown to exert anti-inflammatory and anti-apoptotic activity. Inflammation and apoptosis play an essential role in the progression of vascular calcification. However, the exact role and molecular mechanisms of DOP in vascular calcification remain unclear. In this study, we investigated the effects of DOP on vascular calcification using vascular smooth muscle cells (VSMCs), arterial rings, and CKD rats. Alizarin red staining and gene expression analysis revealed that DOP inhibited calcification and osteogenic differentiation of rat VSMCs in a dose-dependent manner. Similarly, ex vivo studies revealed that DOP inhibited the calcification of rat arterial rings. Furthermore, the administration of DOP alleviated vascular calcification in CKD rats. Moreover, DOP treatment suppressed VSMC inflammation and apoptosis. Finally, DOP treatment upregulated mRNA and protein levels of heme oxygenase-1 (HMOX-1); both pharmacological inhibition of HMOX-1 by the HMOX-1 inhibitor zinc protoporphyrin-9ZnPP9 and knockdown of HMOX-1 by siRNA markedly abrogated the suppression of inflammation and osteogenic differentiation of VSMCs by DOP. Collectively, these results suggest that DOP alleviates vascular calcification in CKD by suppressing apoptosis and inflammation via HMOX-1 activation. These results may provide a promising treatment for vascular calcification in CKD.
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Affiliation(s)
| | - Wenfeng Ruan
- Department of Orthopedics, Taikang Tongji (Wuhan) Hospital, Wuhan, China
| | - Zhengqiang Wang
- Department of Orthopedics, Taikang Tongji (Wuhan) Hospital, Wuhan, China
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11
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Gao L, Wang F, Hou T, Geng C, Xu T, Han B, Liu D. Dendrobium huoshanense C.Z.Tang et S.J.Cheng: A Review of Its Traditional Uses, Phytochemistry, and Pharmacology. Front Pharmacol 2022; 13:920823. [PMID: 35903345 PMCID: PMC9315951 DOI: 10.3389/fphar.2022.920823] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/30/2022] [Indexed: 01/29/2023] Open
Abstract
Dendrobium huoshanense, a traditional medicinal and food homologous plant, belongs to the family Orchidaceae and has a long history of medicinal use. It is reported that the stem of D. huoshanense has a variety of bioactive ingredients such as polysaccharides, flavonoids, sesquiterpenes, phenols, etc. These bioactive ingredients make D. huoshanense remarkable for its pharmacological effects on anti-tumor, immunomodulation, hepatoprotective, antioxidant, and anticataract activities. In recent years, its rich pharmacological activities have attracted extensive attention. However, there is no systematic review focusing on the chemical compositions and pharmacological effects of D. huoshanense. Therefore, the present review aims to summarize current research on the chemical compositions and pharmacological activities of D. huoshanense. This study provides valuable references and promising ideas for further investigations of D. huoshanense.
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Affiliation(s)
- Leilei Gao
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
- *Correspondence: Leilei Gao, ; Bangxing Han, ; Dong Liu,
| | - Fang Wang
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
| | - Tingting Hou
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Chunye Geng
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Tao Xu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
| | - Bangxing Han
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
- *Correspondence: Leilei Gao, ; Bangxing Han, ; Dong Liu,
| | - Dong Liu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
- *Correspondence: Leilei Gao, ; Bangxing Han, ; Dong Liu,
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12
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Wu L, Meng X, Huang H, Liu Y, Jiang W, Su X, Wang Z, Meng F, Wang L, Peng D, Xing S. Comparative Proteome and Phosphoproteome Analyses Reveal Different Molecular Mechanism Between Stone Planting Under the Forest and Greenhouse Planting of Dendrobium huoshanense. FRONTIERS IN PLANT SCIENCE 2022; 13:937392. [PMID: 35873990 PMCID: PMC9301318 DOI: 10.3389/fpls.2022.937392] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
The highly esteemed Chinese herb, Dendrobium huoshanense, whose major metabolites are polysaccharides and alkaloids, is on the verge of extinction. The stone planting under the forest (SPUF) and greenhouse planting (GP) of D. huoshanense are two different cultivation methods of pharmaceutical Dendrobium with significantly differences in morphology, metabolites content and composition, and medication efficacy. Here, we conducted proteomics and phosphoproteomics analyses to reveal differences in molecular mechanisms between SPUF and GP. We identified 237 differentially expressed proteins (DEPs) between the two proteomes, and 291 modification sites belonging to 215 phosphoproteins with a phosphorylation level significantly changed (PLSC) were observed. GO, KEGG pathway, protein domain, and cluster analyses revealed that these DEPs were mainly localized in the chloroplast; involved in processes such as posttranslational modification, carbohydrate transport and metabolism, and secondary metabolite biosynthesis; and enriched in pathways mainly including linoleic acid metabolism, plant-pathogen interactions, and phenylpropanoid, cutin, suberin, and wax biosynthesis. PLSC phosphoproteins were mainly located in the chloroplast, and highly enriched in responses to different stresses and signal transduction mechanisms through protein kinase and phosphotransferase activities. Significant differences between SPUF and GP were observed by mapping the DEPs and phosphorylated proteins to photosynthesis and polysaccharide and alkaloid biosynthesis pathways. Phosphorylation characteristics and kinase categories in D. huoshanense were also clarified in this study. We analyzed different molecular mechanisms between SPUF and GP at proteomic and phosphoproteomic levels, providing valuable information for the development and utilization of D. huoshanense.
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Affiliation(s)
- Liping Wu
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Xiaoxi Meng
- Department of Horticultural Science, University of Minnesota, St. Paul, MN, United States
| | - Huizhen Huang
- Hunan Key Laboratory for Conservation and Utilization of Biological Resources in the Nanyue Mountainous Region, College of Life Sciences and Environment, Hengyang Normal University, Hengyang, China
| | - Yingying Liu
- College of Humanities and International Education Exchange, Anhui University of Chinese Medicine, Hefei, China
| | - Weimin Jiang
- Hunan Key Laboratory for Conservation and Utilization of Biological Resources in the Nanyue Mountainous Region, College of Life Sciences and Environment, Hengyang Normal University, Hengyang, China
| | - Xinglong Su
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Zhaojian Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Fei Meng
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Longhai Wang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Daiyin Peng
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, China
- MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, China
| | - Shihai Xing
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research and Development of Chinese Medicine, Hefei, China
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13
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Structural characterization of a mannoglucan polysaccharide from Dendrobium huoshanense and evaluation of its osteogenesis promotion activities. Int J Biol Macromol 2022; 211:441-449. [PMID: 35577191 DOI: 10.1016/j.ijbiomac.2022.05.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 12/31/2022]
Abstract
Dendrobium huoshanense, a valuable traditional Chinese herb, is widely used to prolong life in China. Our study aims to characterize the structure and osteogenesis-promotion effects of a heteropolysaccharide component isolated from Dendrobium huoshanense (DHPW1). The structure of DHPW1 was characterized using gas chromatography-mass spectrometry and nuclear magnetic resonance, while its osteogenic activity was evaluated using MG-63 cells and zebrafish skulls. The results showed that the molecular weight of DHPW1 was 230 kDa and it was mainly composed of mannose and glucose. In addition, the DHPW1 backbone consisted of (1 → 4)-linked-β-D-Mannopyranosyl and (1 → 4)-linked-β-d-Glucopyranosyl. Furthermore, DHPW1 significantly increased ALP activity and mineralized nodule formation in MG-63 cells. DHPW1 in zebrafish skull models significantly enhanced the relative fluorescence intensity of bone mass and increased the degree of bone mineralization. These results suggested that the DHPW1 component in D. huoshanense has potential to promote osteogenesis.
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14
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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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15
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Li LY, Zhang CT, Zhu FY, Zheng G, Liu YF, Liu K, Zhang CH, Zhang H. Potential Natural Small Molecular Compounds for the Treatment of Chronic Obstructive Pulmonary Disease: An Overview. Front Pharmacol 2022; 13:821941. [PMID: 35401201 PMCID: PMC8988065 DOI: 10.3389/fphar.2022.821941] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/02/2022] [Indexed: 12/20/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is one of the major diseases threatening human life and health. According to the report released by the World Health Organization (WHO) in 2020, COPD has become the third leading cause of death in the world, featuring a sustainable growth of incidence rate as well as population age. The purpose of this review focuses on the advancement of bioactive natural compounds, such as baicalin, quercetin, resveratrol, and curcumin, which demonstrate promising therapeutic/interventional effects on CODP in vitro and in vivo. Information emphasizing on COPD was systematically collected from several authoritative internet databases including Web of Science, PubMed, Elsevier, Wiley Online Library, and Europe PMC, with a combination of keywords containing “COPD” and “natural small molecular compounds”. The new evidence indicated that these valuable molecules featured unique functions in the treatment of COPD through various biological processes such as anti-inflammatory, anti-oxidant, anti-apoptosis, and anti-airway fibrosis. Moreover, we found that the promising effects of these natural compounds on COPD were mainly achieved through JAK3/STAT3/NF-κB and MAPK inflammatory signaling pathways, Nrf2 oxidative stress signaling pathway, and TGF-β1/Smad 2/3 fibrosis signaling pathway, which referenced to multiple targets like TNF-α, IL-6, IL-8, TIMP-1, MMP, AKT, JAK3, IKK, PI3K, HO-1, MAPK, P38, ERK, etc. Current challenges and future directions in this promising field are also discussed at the end of this review. For the convenience of the readers, this review is divided into ten parts according to the structures of potential natural small molecular compounds. We hope that this review brings a quick look and provides some inspiration for the research of COPD.
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Affiliation(s)
- Liu-Ying Li
- Department of Heart Disease of Traditional Chinese Medicine, First People’s Hospital of Zigong City, Zigong, China
| | - Chuan-Tao Zhang
- Department of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Feng-Ya Zhu
- Department of Heart Disease of Traditional Chinese Medicine, First People’s Hospital of Zigong City, Zigong, China
| | - Gang Zheng
- Department of Respiratory and Critical Care Medicine, First People’s Hospital of Zigong City, Zigong, China
| | - Yu-Fei Liu
- Department of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ke Liu
- Department of Respiratory and Critical Care Medicine, First People’s Hospital of Zigong City, Zigong, China
| | - Chen-Hui Zhang
- Department of Combine Traditional Chinese and Western Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Chen-Hui Zhang, ; Hong Zhang,
| | - Hong Zhang
- Department of Combine Traditional Chinese and Western Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Chen-Hui Zhang, ; Hong Zhang,
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16
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Li X, Wang X, Wang Y, Liu X, Ren X, Dong Y, Ma J, Song R, Wei J, Yu A, Fan Q, Yao J, Shan D, Zhang Y, Wei S, She G. A Systematic Review on Polysaccharides from Dendrobium Genus: Recent Advances in the Preparation, Structural Characterization, Bioactive Molecular Mechanisms, and Applications. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2022; 50:471-509. [PMID: 35168475 DOI: 10.1142/s0192415x22500185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Dendrobium polysaccharides (DPSs) have aroused people's increasing attention in recent years as a result of their outstanding edible and medicinal values and non-toxic property. This review systematically summarized recent progress in the different preparation techniques, structural characteristics, modification, various pharmacological activities and molecular mechanisms, structure-activity relationships, and current industrial applications in the medicinal, food, and cosmetics fields of DPSs. Additionally, some recommendations for future investigations were provided. A variety of methods were applied for the extraction and purification of DPSs. They possessed primary structures (e.g., glucomannan, rhamnogalacturonan I type pectin, heteroxylan, and galactoglucan) and conformational structures (e.g., random coil, rod, globular, and a slight triple-helical). And different molecular weights, monosaccharide compositions, linkage types, and modifications could largely affect DPSs' bioactivities (e.g., immunomodulatory, anti-diabetic, hepatoprotective, gastrointestinal protective, antitumor, anti-inflammatory, and anti-oxidant activities). It was worth mentioning that DPSs were significant pharmaceutical remedies and therapeutic supplements especially due to their strong immunity enhancement abilities. We hope that this review will lay a solid foundation for further development and applications of Dendrobium polysaccharides.
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Affiliation(s)
- Xiao Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Xiuhuan Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Yu Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Xiaoyun Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Xueyang Ren
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Ying Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Jiamu Ma
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Ruolan Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Jing Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Axiang Yu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Qiqi Fan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Jianling Yao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Dongjie Shan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Yanfei Zhang
- Shuangjiang Xingyun Biological Technology Co., Ltd, Shenzhen, Guangdong 518000, P. R. China
| | - Shengli Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Gaimei She
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
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17
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Zhu Y, Kong Y, Hong Y, Zhang L, Li S, Hou S, Chen X, Xie T, Hu Y, Wang X. Huoshanmycins A‒C, New Polyketide Dimers Produced by Endophytic Streptomyces sp. HS-3-L-1 From Dendrobium huoshanense. Front Chem 2022; 9:807508. [PMID: 35237566 PMCID: PMC8883461 DOI: 10.3389/fchem.2021.807508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/24/2021] [Indexed: 01/08/2023] Open
Abstract
Three new polyketide dimers named huoshanmycins A‒C (1–3) were isolated from a plant endophytic Streptomyces sp. HS-3-L-1 in the leaf of Dendrobium huoshanense, which was collected from the Cultivation base in Jiuxianzun Huoshanshihu Co., Ltd. The dimeric structures of huoshanmycins were composed of unusual polyketides SEK43, SEK15, or UWM4, with a unique methylene linkage. Their structures were elucidated through comprehensive 1D-/2D-NMR and HRESIMS spectroscopic data analysis. The cytotoxicity against MV4-11 human leukemia cell by the Cell Counting Kit-8 (CCK8) method was evaluated using isolated compounds with triptolide as positive control (IC50: 1.1 ± 0.4 μM). Huoshanmycins A and B (1, 2) displayed moderate cytotoxicity with IC50 values of 32.9 ± 7.2 and 33.2 ± 6.1 μM, respectively.
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Affiliation(s)
- Youjuan Zhu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yichao Kong
- Key Laboratory of Element Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Yu Hong
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ling Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Simin Li
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Shurong Hou
- Key Laboratory of Element Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Xiabin Chen
- Key Laboratory of Element Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Tian Xie
- Key Laboratory of Element Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Yang Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Yang Hu, ; Xiachang Wang,
| | - Xiachang Wang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Yang Hu, ; Xiachang Wang,
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18
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Song L, Yin H, Han R, Li J, Ma N, Wang Y, Guo H. Metabolism of Du Zhong Formula in rats using UPLC-Q-TOF/MS. JOURNAL OF MASS SPECTROMETRY : JMS 2022; 57:e4795. [PMID: 34913224 DOI: 10.1002/jms.4795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 06/14/2023]
Abstract
Du Zhong Formula (DZF), a traditional Chinese medicine formula derived from BeiJiQianJinYaoFang, is used to treat kidney deficiency and lumbago. In this study, ultra-high-performance liquid chromatography quadrupole time-of-flight mass spectrometer (UPLC-Q-TOF/MS) technique combined with pattern recognition analysis was applied for analysis of metabolic profiles of the bioactive components of the DZF in rat biological samples. In this experiment, a total of 73 compounds, including 53 prototype components and 20 metabolites, were identified tentatively in vivo compared with blank urine, plasma, feces, and cerebrospinal fluid (CSF). The prototype ingredients in DZF include terpenoids, gingerols, phenylpropanoids, alkaloids, phenanthrenes, bibenzyls, organic acids, and other ingredients. The metabolic pathways of DZF involved reduction, demethylation, hydroxylation, desugarization, deoxygenation, glucuronidation, sulfation, and methylation. The proposed method could develop an integrated template approach to analyze screening and identification of the bioactive components in plasma, urine, feces, and CSF after oral administration of herb medicines. Additionally, this investigation might provide helpful chemical information for further pharmacology and activity mechanism of DZF.
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Affiliation(s)
- Lili Song
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongqing Yin
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Rui Han
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingfang Li
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ningning Ma
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan Wang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hong Guo
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Key Laboratory of Formula of Traditional Chinese Medicine, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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19
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Liu B, Li QM, Shang ZZ, Zha XQ, Pan LH, Luo JP. Anti-gastric cancer activity of cultivated Dendrobium huoshanense stem polysaccharide in tumor-bearing mice: Effects of molecular weight and O-acetyl group. Int J Biol Macromol 2021; 192:590-599. [PMID: 34648801 DOI: 10.1016/j.ijbiomac.2021.10.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/26/2021] [Accepted: 10/03/2021] [Indexed: 02/08/2023]
Abstract
The present study aimed at assuring whether homogeneous cultivated Dendrobium huoshanense stem polysaccharide (cDHPS) could inhibit gastric cancer in vivo, and whether its anti-gastric cancer activity could be affected by its molecular weight and O-acetyl group. Three different fractions (cDHPS-I, cDHPS-II and cDHPS-III) with decreased molecular weights and one fraction (cDHPS-IV) without O-acetyl group were prepared from cDHPS. Their structures were identified systematically. The backbone of cDHPS-I-III was the same as that of cDHPS, while their relative molecular weights displayed a decreasing order as follows: cDHPS > cDHPS-I > cDHPS-II > cDHPS-III. The backbone of cDHPS-IV was similar to those of cDHPS and cDHPS-I-III, but with the absence of O-acetyl groups. Animal experiments exhibited that cDHPS and cDHPS-I-IV could significantly inhibit tumor growth, induce tumor cell apoptosis, suppress tumor angiogenesis and enhance T cell immune response of murine forestomach carcinoma (MFC) tumor-bearing mice. Moreover, all the above effects of cDHPS and cDHPS-I-IV on MFC tumor-bearing mice exhibited a decreasing order as follows: cDHPS > cDHPS-I > cDHPS-II > cDHPS-III > cDHPS-IV. The results suggest that cDHPS could inhibit gastric cancer in vivo, and its anti-gastric cancer activity was closely linked with its molecular weight and O-acetyl group.
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Affiliation(s)
- Bing Liu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Qiang-Ming Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China; Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, People's Republic of China.
| | - Zhen-Zi Shang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Xue-Qiang Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China; Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Li-Hua Pan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China; Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Jian-Ping Luo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China; Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, People's Republic of China.
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20
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Liang Y, Du R, Chen R, Chu PH, Ip MSM, Zhang KYB, Mak JCW. Therapeutic potential and mechanism of Dendrobium officinale polysaccharides on cigarette smoke-induced airway inflammation in rat. Biomed Pharmacother 2021; 143:112101. [PMID: 34474340 DOI: 10.1016/j.biopha.2021.112101] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 11/25/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is among the leading causes of death worldwide, and is characterized by persistent respiratory symptoms and airflow limitation due to chronic airway inflammation. Cigarette smoking is a major risk factor for COPD. This study aims to determine the therapeutic effects of polysaccharides extracted from Dendrobium officinale (DOPs), a valuable traditional Chinese Medicinal herb, on cigarette smoke (CS)-induced airway inflammation in a rat passive smoking model. Male Sprague-Dawley rats were exposed to CS or sham air (SA) as control for a 56-day period. On Day 29, rats were subdivided and given water, DOPs or N-acetylcysteine (NAC) via oral gavage on a daily basis for the remaining duration. DOPs reduced CS-induced oxidative stress as evidenced by reducing malondialdehyde (MDA) levels in the lung. DOPs also exerted potent anti-inflammatory properties as evidenced by a reduction in the number of lymphocytes and monocytes in serum, significantly attenuating infiltration of inflammatory cells in lung tissue, as well as pro-inflammatory mediators in serum, bronchoalveolar lavage (BAL) and lung. Additionally, DOPs inhibited the CS-induced activation of ERK, p38 MAPK and NF-κB signaling pathways. These findings suggest that DOPs may have potentially beneficial effects in limiting smoking-related lung oxidative stress, and inflammation mediated via the inhibition of MAPK and NF-κB signaling pathways in smokers, without or with COPD.
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Affiliation(s)
- Yingmin Liang
- Departments of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Ruixuan Du
- Departments of Pharmacology & Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Rui Chen
- Departments of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Pak Hin Chu
- Departments of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Mary Sau Man Ip
- Departments of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Kalin Yan Bo Zhang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Judith Choi Wo Mak
- Departments of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China; Departments of Pharmacology & Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
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21
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Lassfolk R, Bertuzzi S, Ardá A, Wärnå J, Jiménez‐Barbero J, Leino R. Kinetic Studies of Acetyl Group Migration between the Saccharide Units in an Oligomannoside Trisaccharide Model Compound and a Native Galactoglucomannan Polysaccharide. Chembiochem 2021; 22:2986-2995. [PMID: 34405515 PMCID: PMC8597014 DOI: 10.1002/cbic.202100374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Indexed: 01/11/2023]
Abstract
Acyl group migration is a fundamental phenomenon in carbohydrate chemistry, recently shown to take place also between two non-adjacent hydroxyl groups, across the glycosidic bond, in a β-(1→4)-linked mannan trisaccharide model compound. With the central mannoside unit containing acetyl groups at the O2 and O3 positions, the O2-acetyl was in the earlier study shown to migrate to O6 of the reducing end. Potential implications of the general acyl migration process on cell signaling events and plant growth in nature are intriguing open questions. In the present work, migration kinetics in this original trisaccharide model system were studied in more detail together with potential interactions of the model compound and the migration products with DC-SIGN lectin. Furthermore, we demonstrate here for the first time that similar migration may also take place in native polysaccharides, here represented by galactoglucomannan from Norway spruce.
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Affiliation(s)
- Robert Lassfolk
- Laboratory of Molecular Science and EngineeringÅbo Akademi University20500TurkuFinland
| | - Sara Bertuzzi
- Chemical Glycobiology LaboratoryCIC bioGUNEBizkaia Technology Park, Building 80048160DerioSpain
| | - Ana Ardá
- Chemical Glycobiology LaboratoryCIC bioGUNEBizkaia Technology Park, Building 80048160DerioSpain
- Ikerbasque, Basque Foundation for SciencePlaza Euskadi 548009BilbaoSpain
| | - Johan Wärnå
- Laboratory of Industrial Chemistry and Reaction EngineeringÅbo Akademi University20500TurkuFinland
| | - Jesús Jiménez‐Barbero
- Chemical Glycobiology LaboratoryCIC bioGUNEBizkaia Technology Park, Building 80048160DerioSpain
- Ikerbasque, Basque Foundation for SciencePlaza Euskadi 548009BilbaoSpain
- Department of Organic & Inorganic ChemistryUniversity of the Basque Country, UPV/EHU48940LeioaBizkaiaSpain
| | - Reko Leino
- Laboratory of Molecular Science and EngineeringÅbo Akademi University20500TurkuFinland
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22
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Huang R, Zhu Z, Wu Q, Bekhit AEDA, Wu S, Chen M, Wang J, Ding Y. Whole-plant foods and their macromolecules: untapped approaches to modulate neuroinflammation in Alzheimer's disease. Crit Rev Food Sci Nutr 2021; 63:2388-2406. [PMID: 34553662 DOI: 10.1080/10408398.2021.1975093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder. Recently, sustained neuroinflammatory response in microglia and astrocytes has been found to cause the deposition of amyloid beta plaques and the hyperphosphorylation of tau protein, thereby accelerating AD progression. The lipoxin A4-transcription factor nuclear factor-kappa B and mitogen-activated protein kinase pathways have been shown to play important roles in the regulation of inflammatory processes. There is growing research-based evidence suggesting that dietary whole-plant foods, such as mushrooms and berries, may be used as inhibitors for anti-neuroinflammation. The beneficial effects of whole-plant foods were mainly attributed to their high contents of functional macromolecules including polysaccharides, polyphenols, and bioactive peptides. This review provides up-to-date information on important molecular signaling pathways of neuroinflammation and discusses the anti-neuroinflammatory effects of whole-plant foods. Further, a critical evaluation of plants' macromolecular components that have the potential to prevent and/or relieve AD is provided. This work will contribute to better understanding the pathogenetic mechanism of neuroinflammation in AD and provide new approaches for AD therapy.
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Affiliation(s)
- Rui Huang
- Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Safety and Health, Guangzhou, P.R. China.,Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, Jinan University, Guangzhou, P.R. China
| | - Zhenjun Zhu
- Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Safety and Health, Guangzhou, P.R. China.,Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, Jinan University, Guangzhou, P.R. China
| | - Qingping Wu
- Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Safety and Health, Guangzhou, P.R. China
| | | | - Shujian Wu
- Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Safety and Health, Guangzhou, P.R. China.,Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, Jinan University, Guangzhou, P.R. China
| | - Mengfei Chen
- Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Safety and Health, Guangzhou, P.R. China.,Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, Jinan University, Guangzhou, P.R. China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, P.R. China
| | - Yu Ding
- Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Safety and Health, Guangzhou, P.R. China.,Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, Jinan University, Guangzhou, P.R. China
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23
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Li M, Huang X, Zhang Q, Zhou Y, Luo K. Structure of
Cardamine hupingshanensis
No. 2 Polysaccharide (CHP‐2) and Its Effect on Streptozotocin‐induced Diabetic Rats. STARCH-STARKE 2021. [DOI: 10.1002/star.202000250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Meidong Li
- College of Biological Science and Technology Hubei Minzu University Enshi Hubei 445000 China
| | - Xiufang Huang
- College of Biological Science and Technology Hubei Minzu University Enshi Hubei 445000 China
| | - Qin Zhang
- College of Biological Science and Technology Hubei Minzu University Enshi Hubei 445000 China
| | - Yifeng Zhou
- College of Biological Science and Technology Hubei Minzu University Enshi Hubei 445000 China
| | - Kai Luo
- College of Biological Science and Technology Hubei Minzu University Enshi Hubei 445000 China
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24
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Gu FL, Huang RS, He XM, Chen NF, Han BX, Deng H. Dendrobium huoshanense Polysaccharides Prevent Inflammatory Response of Ulcerative Colitis Rat through Inhibiting the NF-κB Signaling Pathway. Chem Biodivers 2021; 18:e2100130. [PMID: 34080308 DOI: 10.1002/cbdv.202100130] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/25/2021] [Indexed: 12/12/2022]
Abstract
The polysaccharides of the Chinese herbal medicine Dendrobium huoshanense exhibit anti-inflammatory effects in multiple organs through regulating the immune responses. In the present study, we constructed ulcerative colitis (UC) model rats using dextran sulfate sodium to investigate the anti-inflammatory effects of D. huoshanense polysaccharides (DHP). After oral administration of DHP for two weeks, the indices of UC symptoms, including the ratio of colon weight to length, Disease Activity Index (DAI), and Colon Mucosal Damage Index (CMDI), all decreased significantly compared with the UC model group. The histological sections also revealed better cell orders in DHP treatments than in the UC model rats. Moreover, in treatment with high dose of DHP (200 mg/kg), the treatment efficacy arrived the similar levels to those in the treatment with 300 mg/kg sulfasalazine, which is a typical medicine to treat UC. These results indicated that DHP has a high efficacy to treat UC in model rats. Furthermore, serum levels of interleukin-1β, tumor necrosis factor-α, interleukin-17, and transforming growth factor-β were assessed using the enzyme linked immunosorbent assay (ELISA) method, and the levels of nuclear factor-κB in colon tissue sections were determined using the immunohistochemical method. The results showed that all these indices decreased significantly after administration of DHP in UC model rats, which might be the mechanisms underlying the DHP-suppressed UC inflammation. Overall, this study indicated that DHP might be directly used to treat UC and is a promising source to develop novel drugs against UC.
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Affiliation(s)
- Fang-Li Gu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, P. R. China.,Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu'an, 237012, P. R. China
| | - Ren-Shu Huang
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, P. R. China.,Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu'an, 237012, P. R. China
| | - Xiao-Mei He
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, P. R. China.,Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu'an, 237012, P. R. China
| | - Nai-Fu Chen
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, P. R. China.,Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu'an, 237012, P. R. China
| | - Bang-Xing Han
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, P. R. China.,Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu'an, 237012, P. R. China
| | - Hui Deng
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, P. R. China.,Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu'an, 237012, P. R. China
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25
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Shang ZZ, Qin DY, Li QM, Zha XQ, Pan LH, Peng DY, Luo JP. Dendrobium huoshanense stem polysaccharide ameliorates rheumatoid arthritis in mice via inhibition of inflammatory signaling pathways. Carbohydr Polym 2021; 258:117657. [PMID: 33593544 DOI: 10.1016/j.carbpol.2021.117657] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/28/2020] [Accepted: 01/12/2021] [Indexed: 01/07/2023]
Abstract
The present study explored the beneficial effect of Dendrobium huoshanense stem polysaccharide (cDHPS) after oral administration on rheumatoid arthritis (RA) using type Ⅱ collagen-induced arthritis (CIA) mouse model. It was found that cDHPS effectively alleviated joint swelling, synovial hyperplasia, pannus formation, cartilage erosion and bone destruction in CIA mice. Concurrently, cDHPS remodeled the balance of Th17 and regulatory T cells, reduced the secretion of pro-inflammatory mediators related to fibroblast-like synoviocyte activation, angiogenesis, articular cartilage degradation and osteoclast differentiation, inhibited HIF-1α expression and promoted anti-inflammatory mediator release in the joint tissues and serum of CIA mice. Western blot of joint tissues showed that cDHPS significantly inhibited the phosphorylation of IκB, p65, JNK, p38, ERK1/2, AKT, PI3K, JAK1 and STAT3 in CIA mice. These results suggest that cDHPS possesses the potential of ameliorating RA and its anti-RA effect may be attributed to the inhibition of inflammatory signaling pathways.
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Affiliation(s)
- Zhen-Zi Shang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Dan-Yang Qin
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Qiang-Ming Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xue-Qiang Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Li-Hua Pan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Dai-Yin Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Jian-Ping Luo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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26
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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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27
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Yi Y, Liu L, Zhou W, Peng D, Han R, Yu N. Characterization of GMPP from Dendrobium huoshanense yielding GDP-D-mannose. Open Life Sci 2021; 16:102-107. [PMID: 33817303 PMCID: PMC7988358 DOI: 10.1515/biol-2021-0015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 01/10/2023] Open
Abstract
Dendrobium huoshanense has been used for centuries in China and its polysaccharides are the main active components in treating loss of body fluids resulting from fever and asthenic symptoms. However, the biosynthetic pathway of polysaccharides in D. huoshanense remains to be elucidated. In this study, we obtained a guanosine diphosphate (GDP)-mannose pyrophosphorylase (DhGMPP) from D. huoshanense and characterized its function to catalyze the conversion of α-D-mannose-phosphate to GDP-D-mannose involved in the production of polysaccharides. DhGMPP, with the open reading frame of 1,245 bp, was isolated from RNA-Seq data of D. huoshanense. Phylogenetic analysis as well as sequence characterization suggested its involvement in the biosynthesis of GDP-D-mannose. In vitro enzyme assay demonstrated that GMPP encoded a pyrophosphorylase that converted α-D-mannose-phosphate and GTP into GDP-D-mannose. Identification of DhGMPP could provide more insights into the mechanism concerning polysaccharide biosynthesis in D. huoshanense and be utilized for enhancing polysaccharide accumulation through metabolic engineering.
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Affiliation(s)
- Yuqi Yi
- School of Pharmacy, Anhui University of Chinese Medicine, No. 1, Qianjiang Road, Yaohai District, Hefei 230012, China
| | - Lulu Liu
- Department of Research and Development, Shanghai Zenith Pharmaceutical Technology Co. Ltd.; Shanghai 201199, China
| | - Wenyan Zhou
- Department of Research and Development, Hefei Yifan Biopharmaceutical Co. Ltd.; Hefei 230061, China
| | - Daiyin Peng
- School of Pharmacy, Anhui University of Chinese Medicine, No. 1, Qianjiang Road, Yaohai District, Hefei 230012, China
| | - Rongchun Han
- School of Pharmacy, Anhui University of Chinese Medicine, No. 1, Qianjiang Road, Yaohai District, Hefei 230012, China
| | - Nianjun Yu
- School of Pharmacy, Anhui University of Chinese Medicine, No. 1, Qianjiang Road, Yaohai District, Hefei 230012, China
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28
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Chen W, Lu Y, Hu D, Mo J, Ni J. Black mulberry (Morus nigra L.) polysaccharide ameliorates palmitate-induced lipotoxicity in hepatocytes by activating Nrf2 signaling pathway. Int J Biol Macromol 2021; 172:394-407. [PMID: 33450344 DOI: 10.1016/j.ijbiomac.2021.01.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 01/06/2021] [Accepted: 01/10/2021] [Indexed: 01/05/2023]
Abstract
Black mulberry (Morus nigra L.) has shown health benefits against metabolic disorders. Lipotoxicity is considered as a potentially cause of metabolic syndrome, and there is no effective treatment. However, the protective effect and its mechanism of black mulberry against lipotoxicity are unclear. In this study, three polysaccharide fractions (BP1, BP2, BP3) were isolated from black mulberry by stepwise precipitation with 30%, 60%, and 90% of ethanol and analyzed by GPC, HPLC and FT-IR methods. BP1 exhibited a better protective effect than BP2 and BP3 on palmitic acid (PA)-induced lipotoxicity in HepG2 cells. BP1 effectively reduced PA-induced lipotoxicity by eliminating accumulation of ROS, improving mitochondrial function, reversing glutathione depletion and enhancing antioxidant enzyme activities. Mechanistically, BP1 activated the Nrf2 signaling pathway, a master regulator of the antioxidant defense system, through increasing Nrf2 nuclear translocation and phosphorylation. Collectively, these results demonstrate that BP1 has the great potential for applications in lipid disorders.
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Affiliation(s)
- Wei Chen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
| | - Yang Lu
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Dongwen Hu
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Jianling Mo
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medcine, Zhejiang University, Hangzhou 310016, China
| | - Jingdan Ni
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medcine, Zhejiang University, Hangzhou 310016, China
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29
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Xu M, Yan T, Gong G, Wu B, He B, Du Y, Xiao F, Jia Y. Purification, structural characterization, and cognitive improvement activity of a polysaccharides from Schisandra chinensis. Int J Biol Macromol 2020; 163:497-507. [DOI: 10.1016/j.ijbiomac.2020.06.275] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/27/2020] [Accepted: 06/29/2020] [Indexed: 01/28/2023]
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30
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Mu S, Yang W, Huang G. Antioxidant activities and mechanisms of polysaccharides. Chem Biol Drug Des 2020; 97:628-632. [DOI: 10.1111/cbdd.13798] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/18/2020] [Accepted: 09/03/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Si Mu
- Active Carbohydrate Research Institute Chongqing Key Laboratory of Green Synthesis and Application College of Chemistry Chongqing Normal University Chongqing China
| | - Wenjian Yang
- Active Carbohydrate Research Institute Chongqing Key Laboratory of Green Synthesis and Application College of Chemistry Chongqing Normal University Chongqing China
| | - Gangliang Huang
- Active Carbohydrate Research Institute Chongqing Key Laboratory of Green Synthesis and Application College of Chemistry Chongqing Normal University Chongqing China
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31
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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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32
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Protective Activities of Dendrobium huoshanense C. Z. Tang et S. J. Cheng Polysaccharide against High-Cholesterol Diet-Induced Atherosclerosis in Zebrafish. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8365056. [PMID: 32724495 PMCID: PMC7366212 DOI: 10.1155/2020/8365056] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 04/20/2020] [Indexed: 11/17/2022]
Abstract
Cardiovascular disease is the highest cause of death, and atherosclerosis (AS) is the primary pathogenesis of many cardiovascular diseases. In this study, we aim to investigate the possible pharmaceutical effects of Dendrobium huoshanense C. Z. Tang et S. J. Cheng polysaccharide (DHP) in AS. We fed zebrafish with high-cholesterol diet (HCD) to establish a zebrafish AS model and treated with DHP and observed plaque formation and neutrophil counts under a fluorescence microscope. Next, a parallel flow chamber was utilized to establish low shear stress- (LSS-) induced endothelial cell (EC) dysfunction model. We observed that DHP significantly improved HCD-induced lipid deposition, oxidative stress, and inflammatory response, mainly showing that DHP significantly increased superoxide dismutase (SOD) activity, decreased plaque formation, and decreased neutrophil recruitment and the levels of total cholesterol (TC), triglyceride (TG), malondialdehyde (MDA), and reactive oxygen species (ROS). Furthermore, DHP significantly improved LSS-induced oxidative stress and EC dysfunction. Our results indicated that DHP can exert treatment effects on AS, which may attribute to its hypolipidemic, antioxidant, anti-inflammatory activities and improving LSS-induced EC dysfunction. DHP has promising potential for further development as a functional natural medicine source targeted at AS prevention.
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Xu M, Wang J, Zhang X, Yan T, Wu B, Bi K, Jia Y. Polysaccharide from Schisandra chinensis acts via LRP-1 to reverse microglia activation through suppression of the NF-κB and MAPK signaling. JOURNAL OF ETHNOPHARMACOLOGY 2020; 256:112798. [PMID: 32251761 DOI: 10.1016/j.jep.2020.112798] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/18/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Schisandra chinensis (Turcz.) Baill (S. Chinensis), a traditional Chinese medicine frequently used in the traditional treatment of dementia, its polysaccharide component has been widely reported. AIM OF THE STUDY In this paper, we studied whether SCP2-1, a natural product of homogeneous polysaccharide from S. Chinensis, could improve M1 and M2 polarization and inhibit neuroinflammation through lipoprotein receptor-related protein-1 (LRP-1), and futher exerted anti-inflammatory and neuroprotective effects. MATERIALS AND METHODS SCP2-1 was obtained from crude polysaccharide of S. Chinensis, BV2 microglia cells and mice stimulated by LPS were served to detect the positive role of SCP2-1 in M1/M2 polarization. The concentration of cytokine expression, IL-1β, TNF-α, IL-12 and IL-6 for M1 polarization and TGF-β, IL-10, IL-4 and Arg-1 for M2 polarization, in the BV2 and hippocampus were tested by ELISA kits. CD86 and CD206, as surface markers of M1 and M2, were tested by flow cytometry. We examined the expression of LRP-1 in BV2 cells and mouse hippocampus. The addition of siRNA for LRP-1 demonstrated the important role of LRP-1 in the neuroprotection of SCP2-1. Western blot was used to detect the activation of various mitogen-activated protein kinase (MAPKs) pathway, i.e. the phosphorylation of JNK and ERK proteins, and nuclear translocation of nuclear factor κB (NF-κB). H.E. staining was used to observe Histopathological changes. RESULTS SCP2-1 could reverse M1/M2 polarization in vitro culture and suppressed M1 polarization in the hippocampus of mice stimulated with LPS. After LPS stimulation, poor levels of LRP-1, hyperactivation of the JNK and NF-κB was appeared, which could improve by SCP2-1. The addition of siRNA for LRP-1 suppressed the protection of SCP2-1 in BV2 microglial cells. More importantly, SCP2-1 could improve LPS-induced cognitive dysfunction in mice in Y-maze and NOR test. CONCLUSIONS SCP2-1 could improve M1/M2 polarization, especially inhibit M1 polarization, and ameliorate the cognition of mice in Y-maze and NOR test. SCP2-1 play a neuroprotective role through LRP-1 to reverse activation of microglia via suppressing the overactive NF-κB and JNK pathway.
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Affiliation(s)
- Mengjie Xu
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Jinyu Wang
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Xiaoying Zhang
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Tingxu Yan
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Bo Wu
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Kaishun Bi
- The Engineering Laboratory of National and Local Union of Quality Control for Traditional Chinese Medicine, School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Ying Jia
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China.
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34
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Niu Z, Hou Z, Wang M, Ye M, Zhang B, Xue Q, Liu W, Ding X. A comparative plastomics approach reveals available molecular markers for the phylogeographic study of Dendrobium huoshanense, an endangered orchid with extremely small populations. Ecol Evol 2020; 10:5332-5342. [PMID: 32607156 PMCID: PMC7319108 DOI: 10.1002/ece3.6277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 03/13/2020] [Accepted: 03/25/2020] [Indexed: 11/08/2022] Open
Abstract
Comparative plastomics approaches have been used to identify available molecular markers for different taxonomic level studies of orchid species. However, the adoption of such methods has been largely limited in phylogeographic studies. Therefore, in this study, Dendrobium huoshanense, an endangered species with extremely small populations, was used as a model system to test whether the comparative plastomic approaches could screen available molecular markers for the phylogeographic study. We sequenced two more plastomes of D. huoshanense and compared them with our previously published one. A total of 27 mutational hotspot regions and six polymorphic cpSSRs have been screened for the phylogeographic studies of D. huoshanense. The cpDNA haplotype data revealed that the existence of haplotype distribution center was located in Dabieshan Mts. (Huoshan). The genetic diversity and phylogenetic analyses showed that the populations of D. huoshanense have been isolated and evolved independently for long period. On the contrary, based on cpSSR data, the genetic structure analysis revealed a mixed structure among the populations in Anhui and Jiangxi province, which suggested that the hybridization or introgression events have occurred among the populations of D. huoshanense. These results indicated that human activities have played key roles in shaping the genetic diversity and distributional patterns of D. huoshanense. According to our results, both two markers showed a high resolution for the phylogeographic studies of D. huoshanense. Therefore, we put forth that comparative plastomic approaches could revealed available molecular markers for phylogeographic study, especially for the species with extremely small populations.
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Affiliation(s)
- Zhitao Niu
- College of Life SciencesNanjing Normal UniversityNanjingChina
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
| | - Zhenyu Hou
- College of Life SciencesNanjing Normal UniversityNanjingChina
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
| | - Mengting Wang
- College of Life SciencesNanjing Normal UniversityNanjingChina
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
| | - Meirong Ye
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
| | - Benhou Zhang
- College of Life SciencesNanjing Normal UniversityNanjingChina
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
| | - Qingyun Xue
- College of Life SciencesNanjing Normal UniversityNanjingChina
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
| | - Wei Liu
- College of Life SciencesNanjing Normal UniversityNanjingChina
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
| | - Xiaoyu Ding
- College of Life SciencesNanjing Normal UniversityNanjingChina
- Jiangsu Provincial Engineering Research Center for Technical Industrialization for DendrobiumNanjingChina
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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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Liu B, Shang ZZ, Li QM, Zha XQ, Wu DL, Yu NJ, Han L, Peng DY, Luo JP. Structural features and anti-gastric cancer activity of polysaccharides from stem, root, leaf and flower of cultivated Dendrobium huoshanense. Int J Biol Macromol 2020; 143:651-664. [DOI: 10.1016/j.ijbiomac.2019.12.041] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/02/2019] [Accepted: 12/05/2019] [Indexed: 01/24/2023]
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37
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Zhou J, Zou P, Jing C, Xu Z, Zhou S, Li Y, Zhang C, Yuan Y. Chemical characterization and bioactivities of polysaccharides from Apocynum venetum leaves extracted by different solvents. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00286-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu H, Fang C, Zhang T, Guo L, Ye Q. Molecular authentication and differentiation of Dendrobium species by rDNA ITS region sequence analysis. AMB Express 2019; 9:53. [PMID: 31004252 PMCID: PMC6474905 DOI: 10.1186/s13568-019-0767-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 03/23/2019] [Indexed: 11/16/2022] Open
Abstract
Owing to their significant medicinal and edible values, the natural Dendrobium species have underdone over-collection and habitat destruction, and cultivated species emerged for candidates. However, these Dendrobium plants are similar in shape to be easily confused, leading to extreme difficulties for identification based on their morphological and chemical features. In this study, the rDNA ITS region sequence analysis was developed for rapid and accurate identification of thirteen wild and cultivated Dendrobium species belonging to two sections Formosae and Chrysotoxae. By cloning and sequencing the rDNA ITS region genes from 13 Dendrobium species, the phylogenetic relationships among them were analyzed. Results showed that the variation of the ITS region, together with the lengths and Guanine and Cytosine contents of ITS, 5.8s rDNA, ITS1 and ITS2 sequences occurred in the tested Dendrobium species, and which from section Chrysotoxae was higher than that from section Formsae. Phylogenetic analysis based on neighbor-joining and maximum p-arsimony trees indicated that the Dendrobium species of sections Formosae and Chrysotoxae could be well divided into two groups. A majority of Dendrobium species exhibited distinctive ITS2 secondary structures, while for those with close genetic relationships were similar. Therefore, the ITS2 region sequence analysis is simple, quick, and highly reliable that can be used as an effective tool for molecular identification and classification, as well as the reconstruction of the phylogeny of wild and cultivated Dendrobium species belonging to different sections.
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Endogenous calcium attenuates the immunomodulatory activity of a polysaccharide from Lycium barbarum L. leaves by altering the global molecular conformation. Int J Biol Macromol 2019; 123:182-188. [DOI: 10.1016/j.ijbiomac.2018.11.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/03/2018] [Accepted: 11/12/2018] [Indexed: 11/21/2022]
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