1
|
Feng L, Shi P, Zhao L, Shang M, Han Y, Han N, Liu Z, Li S, Zhai J, Yin J. Structural characterization of polysaccharides from Panax ginseng C. A. Meyer root and their triggered potential immunoregulatory and radioprotective activities. Int J Biol Macromol 2024; 280:135993. [PMID: 39326612 DOI: 10.1016/j.ijbiomac.2024.135993] [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: 07/07/2024] [Revised: 09/12/2024] [Accepted: 09/22/2024] [Indexed: 09/28/2024]
Abstract
With people's increasing awareness of healthy diet, the diverse health-promoting functions of ginseng have been widely recognized. As one of the key functional components, ginseng polysaccharides have attracted increasing research interest. Here, three purified polysaccharide fractions, GPS-1a, GPS-1b, and GPS-2, were obtained from the root extract of Panax ginseng C. A. Meyer. Structurally, GPS-1a and GPS-1b were both linked in a → 6)-α-D-Glcp-(1 → pattern but composed of glucose and galactose in molar ratios of 9.76:0.24 and 9.81:0.19. In contrast, GPS-2 was composed of glucose, galactose, arabinose, rhamnose, and galacturonic acid in a molar ratio of 1.82:1.94:0.79:0.52:4.93. The main backbone consisted of →4)-α-D-GalpA-(1→, →4)-α-D-GalpA-6OMe-(1→, →3, 4)-α-D-GalpA-(1→, →3)-α-L-Rhap-(1 → linages, and its branches are composed of →5)-α-L-Araf-(1→, →4)-β-D-Galp-(1→, →2)-β-D-Glcp-(1→, α-D-GalAp-(1→. Benefitting from this structural variance, GPS-2 exhibited the most significant immunoregulatory and radioprotective efficacies. Specifically, GPS-2 promoted TLR2, NF-κB, and TRAF6 protein expression levels, thereby significantly improving macrophage phagocytosis, splenic lymphocyte proliferation, and stimulation of NO, IL-1β, IL-6, and TNF-α secretion, which activated RAW264.7 and splenic lymphocytes. The following radioprotection activity tests unveiled that GPS-2 increased the organ index, number of peripheral blood cells, cellularity of splenocytes, and bone marrow cell numbers in irradiated mice. This investigation revealed the contribution of polysaccharide structure characteristics to the bioactive expression and elucidated the potential utilization of GPS-2 as a radioprotective agent or immunomodulator.
Collapse
Affiliation(s)
- Lei Feng
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China; Department of Pharmacy, the First Hospital of China Medical University, Shenyang 110001, China
| | - Peixin Shi
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lichun Zhao
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Mengwen Shang
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yubo Han
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Na Han
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhihui Liu
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Sikai Li
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jianxiu Zhai
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Jun Yin
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
| |
Collapse
|
2
|
Shi Q, Li X, He J, Ye D, Tang H, Xuan J, Tang Y, Zhang Y, Zhang Y. Effects of Auricularia auricula-judae (Bull.) Quél. polysaccharide acid hydrolysate on glucose metabolism in diabetic mice under oxidative stress. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155485. [PMID: 38640854 DOI: 10.1016/j.phymed.2024.155485] [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: 12/18/2023] [Revised: 02/11/2024] [Accepted: 02/24/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND Oxidative stress can lead to uncontrolled glucose metabolism and, thus, diabetes. Auricularia auricula-judae (Bull.) Quél. polysaccharides possess biological activities, such as antioxidant and hypoglycemic effects, but their mechanism of their acid hydrolysates on oxidative stress-injured glucose metabolism disorders is unclear. PURPOSE Using diabetic mice, we investigated the effect of the acid hydrolysate of polysaccharides from Auricularia auricula-judae (Bull.) Quél. on improving diabetes. STUDY DESIGN AND METHODS The structural information of sample polysaccharides was measured by high performance gel permeation chromatography, nuclear magnetic resolution, and high performance liquid chromatography. The diabetic model was established by intraperitoneal injection of streptozotocin. For eight consecutive weeks, the mice were orally administered sample polysaccharides (100, 200, and 300 mg/kg b.w. per day) for intervention. The improvement effect of the samples on diabetes was explored by detecting the changes in biochemical indicators in mice, and the underlying mechanism was studied by transcriptomic and metabolomic analysis. RESULTS The results showed that acid hydrolysate of Auricularia auricula-judae (Bull.) Quél. polysaccharides consisted mainly of mannose, xylose, glucuronic acid, and glucose; its weight-averaged molecular weight was 6.3842 × 104 Dalton, its number average molecular weight was 2.9594 × 104 Dalton; and the molecule contained α-Glc(1→4)-, β-Glc(1→3)-, and β-Man(1→4)-linked glycosidic bonds. A total of 100 mg/kg b.w. per day sample was the best intervention concentration. After eight weeks of intervention, the sample polysaccharides significantly reduced dynamic blood glucose and serum lipids, enhanced antioxidant enzyme activities, promoted glucagon like peptide-1 and insulin secretion, improved insulin sensitivity and alleviated insulin resistance in diabetic mice. Transcriptomic and metabolomic analyses showed that sample polysaccharides was able to ameliorate disorders of glucose metabolism by modulating gene expression such as glucokinase; and modulate the state of oxidative stress in mice in vivo by regulating the glutathione metabolism pathway. CONCLUSION Acid hydrolysate of Auricularia auricula-judae (Bull.) Quél. polysaccharides improved glucose metabolism disorders by slowing down the oxidative stress injury in mice, thereby alleviating diabetes. This study provided a basis for determining the underlying mechanism of the antidiabetic effect of Auricularia auricula-judae (Bull.) Quél. polysaccharides, which would significantly improve the deep development and application of these materials in diabetes control.
Collapse
Affiliation(s)
- Qianwen Shi
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Xiangyu Li
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Jiyuan He
- Liang Xin College, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Deting Ye
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Huinan Tang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Jinjie Xuan
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Yuxuan Tang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Yakun Zhang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Yongjun Zhang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China.
| |
Collapse
|
3
|
Zhang B, Zhang M, Tian J, Zhang X, Zhang D, Li J, Yang L. Advances in the regulation of radiation-induced apoptosis by polysaccharides: A review. Int J Biol Macromol 2024; 263:130173. [PMID: 38360238 DOI: 10.1016/j.ijbiomac.2024.130173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/03/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
Polysaccharides are biomolecules composed of monosaccharides that are widely found in animals, plants and microorganisms and are of interest for their various health benefits. Cumulative studies have shown that the modulation of radiation-induced apoptosis by polysaccharides can be effective in preventing and treating a wide range of radiation injuries with safety and few side effects. Therefore, this paper summarizes the monosaccharide compositions, molecular weights, and structure-activity relationships of natural polysaccharides that regulate radiation-induced apoptosis, and also reviews the molecular mechanisms by which these polysaccharides modulate radiation-induced apoptosis, primarily focusing on promoting cancer cell apoptosis to enhance radiotherapy efficacy, reducing radiation damage to normal tissues, and inhibiting apoptosis in normal cells. Additionally, the role of gut microbiota in mediating the interaction between polysaccharides and radiation is discussed, providing innovative ideas for various radiation injuries, including hematopoiesis, immunity, and organ damage. This review will contribute to a better understanding of the value of natural polysaccharides in the field of radiation and provide guidance for the development of natural radioprotective agents and radiosensitizers.
Collapse
Affiliation(s)
- Beibei Zhang
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China; Department of Nutrition, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
| | - Mingyu Zhang
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China; Department of Nutrition, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
| | - Jinlong Tian
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Xi Zhang
- Department of Nutrition, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
| | - Dan Zhang
- Department of Nutrition, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
| | - Jiabao Li
- Department of Nutrition, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
| | - Lei Yang
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China; Department of Nutrition, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China.
| |
Collapse
|
4
|
Structure, preparation, modification, and bioactivities of β-glucan and mannan from yeast cell wall: A review. Int J Biol Macromol 2021; 173:445-456. [PMID: 33497691 DOI: 10.1016/j.ijbiomac.2021.01.125] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 02/06/2023]
Abstract
In order to solve the antibiotic resistance, the research on antibiotic substitutes has received an extensive attention. Many studies have shown that β-glucan and mannan from yeast cell wall have the potential to replace antibiotics for the prevention and treatment of animal diseases, thereby reducing the development and spread of antibiotic-resistant bacterial pathogens. β-Glucan and mannan had a variety of biological functions, including improving the intestinal environment, stimulating innate and acquired immunity, adsorbing mycotoxins, enhancing antioxidant capacity, and so on. The biological activities of β-glucan and mannan can be improved by chemically modifying its primary structure or reducing molecular weight. In this paper, the structure, preparation, modification, and biological activities of β-glucan and mannan were reviewed, which provided future perspectives of β-glucan and mannan.
Collapse
|
5
|
Chen N, Zhang H, Zong X, Li S, Wang J, Wang Y, Jin M. Polysaccharides from Auricularia auricula: Preparation, structural features and biological activities. Carbohydr Polym 2020; 247:116750. [DOI: 10.1016/j.carbpol.2020.116750] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/27/2020] [Accepted: 07/09/2020] [Indexed: 02/07/2023]
|
6
|
Repair characteristics and time-dependent effects in response to heavy-ion beam irradiation in Saccharomyces cerevisiae: a comparison with X-ray irradiation. Appl Microbiol Biotechnol 2020; 104:4043-4057. [PMID: 32144474 DOI: 10.1007/s00253-020-10464-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 02/07/2020] [Accepted: 02/12/2020] [Indexed: 12/14/2022]
Abstract
Heavy-ion beam (HIB) irradiation has been widely used in microbial mutation breeding. However, a global cellular response to such radiation remains mostly uncharacterised. In this study, we used transcriptomics to analyse the damage repair response in Saccharomyces cerevisiae following a semi-lethal HIB irradiation (80 Gy), which induced a significant number of DNA double-strand breaks. Our analysis of differentially expressed genes (DEGs) from 50 to 150 min post-irradiation revealed that upregulated genes were significantly enriched for gene ontology and Kyoto encyclopaedia of genes and genomes terms related to damage repair response. Based on the number of DEGs, their annotation, and their relative expression, we established that the peak of the damage repair response occurred 75 min post-irradiation. Moreover, we exploited the data from our recent study on X-ray irradiation-induced repair to compare the transcriptional patterns induced by semi-lethal HIB and X-ray irradiations. Although these two radiations have different properties, we found a significant overlap (> 50%) for the DEGs associated with five typical DNA repair pathways and, in both cases, identified homologous recombination repair (HRR) as the predominant repair pathway. Nevertheless, when we compared the relative enrichment of the five DNA repair pathways at the key time point of the repair process, we found that the relative enrichment of HRR was higher after HIB irradiation than after X-ray irradiation. Additionally, the peak stage of HRR following HIB irradiation was ahead of that following X-ray irradiation. Since mutations occur during the DNA repair process, uncovering detailed repair characteristics should further the understanding of the associated mutagenesis features.
Collapse
|
7
|
Wang W, Xue C, Mao X. Radioprotective effects and mechanisms of animal, plant and microbial polysaccharides. Int J Biol Macromol 2020; 153:373-384. [PMID: 32087223 DOI: 10.1016/j.ijbiomac.2020.02.203] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/14/2020] [Accepted: 02/18/2020] [Indexed: 12/11/2022]
Abstract
Ionizing radiation is increasingly used to successfully diagnose many human health problems, but ionizing radiation may cause damage to organs/tissues in the living organisms such as the spleen, liver, skin, and brain. Many radiation protective agents have been discovered, with the deepening of radiation research. Unfortunately, these protective agents have many side effects, which cause drug resistance, nausea, vomiting, osteoporosis, etc. The polysaccharides extracted from natural sources are widely available and low in toxicity. In vivo and in vitro experiments have demonstrated that polysaccharides have anti-radiation activity through anti-oxidation, immune regulation, protection of hematopoietic system and protection against DNA damage. Recently, some studies have shown that polysaccharides were resistant to radiation. In the review, the anti-radiation activities of polysaccharides from different sources are summarized, and the anti-radiation mechanisms are discussed as well. It can be used to develop more effective anti-radiation management drugs.
Collapse
Affiliation(s)
- Wenjie Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, China.
| | - Xiangzhao Mao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, China.
| |
Collapse
|