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Li S, Li X, Ye Y, Chen M, Chen H, Yang D, Li M, Jiang F, Zhang X, Zhang C. The rhizosphere microbiome and its influence on the accumulation of metabolites in Bletilla striata (Thunb.) Reichb. f. BMC PLANT BIOLOGY 2024; 24:409. [PMID: 38760736 PMCID: PMC11100225 DOI: 10.1186/s12870-024-05134-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 05/10/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND Bletilla striata (Thunb.) Reichb. f. (B. striata) is a perennial herbaceous plant in the Orchidaceae family known for its diverse pharmacological activities, such as promoting wound healing, hemostasis, anti-inflammatory effects, antioxidant properties, and immune regulation. Nevertheless, the microbe-plant-metabolite regulation patterns for B. striata remain largely undetermined, especially in the field of rhizosphere microbes. To elucidate the interrelationships between soil physics and chemistry and rhizosphere microbes and metabolites, a comprehensive approach combining metagenome analysis and targeted metabolomics was employed to investigate the rhizosphere soil and tubers from four provinces and eight production areas in China. RESULTS Our study reveals that the core rhizosphere microbiome of B. striata is predominantly comprised of Paraburkholderia, Methylibium, Bradyrhizobium, Chitinophaga, and Mycobacterium. These microbial species are recognized as potentially beneficial for plants health. Comprehensive analysis revealed a significant association between the accumulation of metabolites, such as militarine and polysaccharides in B. striata and the composition of rhizosphere microbes at the genus level. Furthermore, we found that the soil environment indirectly influenced the metabolite profile of B. striata by affecting the composition of rhizosphere microbes. Notably, our research identifies soil organic carbon as a primary driving factor influencing metabolite accumulation in B. striata. CONCLUSION Our fndings contribute to an enhanced understanding of the comprehensive regulatory mechanism involving microbe-plant-metabolite interactions. This research provides a theoretical basis for the cultivation of high-quality traditional Chinese medicine B. striata.
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Affiliation(s)
- Shiqing Li
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Xiaomei Li
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Yueyu Ye
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Man Chen
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Haimin Chen
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Dongfeng Yang
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Meiya Li
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Fusheng Jiang
- College of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
| | - Xiaobo Zhang
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
| | - Chunchun Zhang
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
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Liu JZ, Wang L, Jiang LJ, Lyu HC, Yuan Q, Wang GF, Fu YJ, Cui Q. In sight the behavior of natural Bletilla striata polysaccharide hydrocolloids by molecular dynamics method. Int J Biol Macromol 2024; 266:131245. [PMID: 38554922 DOI: 10.1016/j.ijbiomac.2024.131245] [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: 09/25/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Plant polysaccharides, distinguished by diverse glycosidic bonds and various cyclic sugar units, constitute a subclass of primary metabolites ubiquitously found in nature. Contrary to common understanding, plant polysaccharides typically form hydrocolloids upon dissolution in water, even though both excessively high and low temperatures impede this process. Bletilla striata polysaccharides (BSP), chosen for this kinetic study due to their regular repeating units, help elucidate the relationship between polysaccharide gelation and temperature. It is suggested that elevated temperatures enhance the mobility of BSP molecular chains, resulting in a notable acceleration of hydrogen bond breakage between BSP and water molecules and consequently, compromising the conformational stability of BSPs to some extent. This study unveils the unique relationship between polysaccharide dissolution processes and temperature from a kinetics perspective. Consequently, the conclusion provides a dynamical basis for comprehending the extraction and preparation of natural plant polysaccharide hydrocolloids, pharmaceuticals and related fields.
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Affiliation(s)
- Ju-Zhao Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
| | - Lu Wang
- School of Life Sciences, Westlake University, Hangzhou 310030, PR China
| | - Li-Jie Jiang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Hong-Chang Lyu
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Qiang Yuan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Guang-Fu Wang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu-Jie Fu
- College of Forestry, Beijing Forestry University, No. 35, Tsinghua East Road, Haidian District, Beijing 100083, PR China
| | - Qi Cui
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
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Shang J, Duan L, Zhang W, Zhuang Q, Ren X, Gu D. The effect of Bletilla striata polysaccharide on the physical and healing properties of curdlan-based hydrogel for wound healing. J Biomater Appl 2024; 38:943-956. [PMID: 38462970 DOI: 10.1177/08853282241238409] [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] [Indexed: 03/12/2024]
Abstract
Bletilla striata polysaccharide (BSP) was added to curdlan to form a blend hydrogel through a simple heating-cooling procedure to improve the hydrophilicity and healing efficacy of curdlan-based hydrogel used in wound healing. We explored the interplay between BSP and curdlan, studied how BSP concentration affects the physical properties and microstructures of hydrogels, and examined the biocompatibility and healing properties of the blend hydrogel. It was proved that the hydrogel framework was primarily formed by ordered arranged curdlan molecules, with BSP uniformly dispersed and intertwined with curdlan through hydrogen bonding. This effectively improved its hydrophilicity and strengthened the microstructure. Curdlan was found to be compatible with BSP. The blend hydrogel B3Cd3 (containing 1.5% BSP and 1.5% curdlan, w/v) was identified as the optimal formulation based on its higher water adsorption, water retention, thermal stability and interconnected microstructure, and was thus selected for further research. In vitro experiments revealed the highest cell viability of L929 in B3Cd3 extracts compared to those extracts of single-component curdlan hydrogel (Cd). In vivo, animal studies indicated that the B3Cd3 accelerated wound healing compared to the control group by improving re-epithelialization and blood vessel regeneration. On Days 3 and 11, the therapeutic benefits of B3Cd3 exceeded those of the Cd group, and no significant differences were observed in wound healing rates between the B and B3Cd3 groups from Day 7. The study proves that BSP enhances the physical and healing properties, as well as cell proliferation, of the curdlan-based hydrogel. The blend hydrogel B3Cd3, with its exceptional properties, holds potential for future application as a material for non-infected wound healing.
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Affiliation(s)
- Jin Shang
- School of Public Health, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Liangliang Duan
- School of Public Health, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Weimin Zhang
- Administration for Drug and Instrument Supervision and Inspection of PLAJLSF, Beijing, China
| | - Qibin Zhuang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, China
| | - Xiaomei Ren
- School of Public Health, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Dale Gu
- Technical Department, Anhui Xiletianyuan Food Co., Ltd, Anqing, China
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Xie Q, Xu H, Wen R, Wang L, Yang Y, Zhang H, Su B. Integrated management of fruit trees and Bletilla striata: implications for soil nutrient profiles and microbial community structures. Front Microbiol 2024; 15:1307677. [PMID: 38511009 PMCID: PMC10951077 DOI: 10.3389/fmicb.2024.1307677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/14/2024] [Indexed: 03/22/2024] Open
Abstract
Introduction Forest medicinal compound systems in agroforestry ecosystems represent a multi-layered cultivation approach that utilizes forest resources efficiently. However, research on how these systems affect soil nutrients and microbial communities is limited. Methods This study compared the soil chemical properties and microbial communities of Bletilla striata (C) grown alone versus in agroforestry systems with apple (PB), pear (LB), and peach trees (TB), aiming to understand the impact of these systems on soil health and microbial diversity. Results Soil in the GAB systems showed increased levels of essential nutrients but lower pH and ammonium nitrogen levels compared to the control. Significant improvements in organic matter, total phosphorus, and total potassium were observed in TB, PB, and LB systems, respectively. The bacterial diversity increased in GAB systems, with significant changes in microbial phyla indicative of a healthier soil ecosystem. The correlation between soil properties and bacterial communities was stronger than with fungal communities. Discussion Integrating B. striata with fruit trees enhances soil nutrients and microbial diversity but may lead to soil acidification. Adjustments such as using controlled-release fertilizers and soil amendments like lime could mitigate negative impacts, improving soil health in GAB systems.
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Affiliation(s)
- Qiufeng Xie
- College of Pharmaceutical Science, Dali University, Dali, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, College of Pharmacy, Dali University, Dali, China
| | - Huimei Xu
- College of Pharmaceutical Science, Dali University, Dali, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, College of Pharmacy, Dali University, Dali, China
| | - Rouyuan Wen
- College of Pharmaceutical Science, Dali University, Dali, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, College of Pharmacy, Dali University, Dali, China
| | - Le Wang
- College of Pharmaceutical Science, Dali University, Dali, China
| | - Yan Yang
- College of Pharmaceutical Science, Dali University, Dali, China
| | - Haizhu Zhang
- College of Pharmaceutical Science, Dali University, Dali, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, College of Pharmacy, Dali University, Dali, China
| | - BaoShun Su
- Dali Lin Yun Biotechnology Development Co., Ltd., Dali, China
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He X, Liu L, Gu F, Huang R, Liu L, Nian Y, Zhang Y, Song C. Exploration of the anti-inflammatory, analgesic, and wound healing activities of Bletilla Striata polysaccharide. Int J Biol Macromol 2024; 261:129874. [PMID: 38307430 DOI: 10.1016/j.ijbiomac.2024.129874] [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: 10/30/2023] [Revised: 12/24/2023] [Accepted: 01/24/2024] [Indexed: 02/04/2024]
Abstract
Bletilla Striata (BS) Polysaccharide (BSP) is one of the main components of the traditional Chinese medicinal plant Bletilla striata Rchb. F. BSP has been widely used in antimicrobial and hemostasis treatments in clinics. Despite its use in skin disease treatment and cosmetology, the effects of BSP on wound healing remain unclear. Here we investigated the anti-inflammatory, antioxidant, and analgesic effects of BSP and explored its impact on morphological changes and inflammatory mediators during wound healing. A carrageenan-induced mouse paw edema model was established to evaluate the anti-inflammatory effect of BSP. Antioxidant indicators, including NO, SOD, and MDA, were measured in the blood and liver. The increased pain threshold induced by BSP was also determined using the hot plate test. A mouse excisional wound model was applied to evaluate the wound healing rate, and HE staining and Masson staining were used to detect tissue structure changes. In addition, ELISA was employed to detect the expression of pro-inflammatory cytokines TNF-α, IL-6, and IL-1β in serum. BSP significantly decreased the concentration of NO and MDA in serum and liver while increasing SOD activity. It exhibited a notable improvement in mouse paw edema induced by carrageenan. BSP dose-dependently delayed the appearance of licking behavior in mice, indicating its analgesic effect. Compared to the control group, the wound healing rate was significantly improved in the BSP treatment group. HE and Masson staining results showed that the BSP and 'Jingwanhong' ointment groups had slightly milder inflammatory responses and significantly promoted more new granulation tissue formation. The levels of serum inflammatory mediators TNF-α, IL-1β, and IL-6 were reduced to varying degrees. The results demonstrated that BSP possesses anti-inflammatory, antioxidant, analgesic, and wound healing properties, and it may promote wound healing through inhibition of inflammatory cytokine synthesis and release.
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Affiliation(s)
- Xiaomei He
- College of Biology and Pharmaceutical Engineering, West Anhui University, Lu'an, Anhui 237012, China; Anhui Provincial Collaborative Innovation Center of Modern Chinese Medicinal Industry, West Anhui University, Lu'an, Anhui 237012, China
| | - Longyun Liu
- School of Biotechnology, Hefei Vocational and Technical College, Hefei 230000, China
| | - Fangli Gu
- College of Biology and Pharmaceutical Engineering, West Anhui University, Lu'an, Anhui 237012, China; Anhui Provincial Collaborative Innovation Center of Modern Chinese Medicinal Industry, West Anhui University, Lu'an, Anhui 237012, China
| | - Renshu Huang
- College of Biology and Pharmaceutical Engineering, West Anhui University, Lu'an, Anhui 237012, China; Anhui Provincial Collaborative Innovation Center of Modern Chinese Medicinal Industry, West Anhui University, Lu'an, Anhui 237012, China
| | - Li Liu
- College of Biology and Pharmaceutical Engineering, West Anhui University, Lu'an, Anhui 237012, China
| | - Yuting Nian
- College of Biology and Pharmaceutical Engineering, West Anhui University, Lu'an, Anhui 237012, China
| | - Yingyu Zhang
- Henan Key Laboratory of Rare Diseases, Endocrinology and Metabolism Center, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China.
| | - Cheng Song
- College of Biology and Pharmaceutical Engineering, West Anhui University, Lu'an, Anhui 237012, China; Anhui Provincial Collaborative Innovation Center of Modern Chinese Medicinal Industry, West Anhui University, Lu'an, Anhui 237012, China.
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Li N, Zhang G, Zhang X, Liu Y, Kong Y, Wang M, Ren X. A rapid-floating natural polysaccharide gel-raft with double-effect for the treatment of gastroesophageal reflux disease. Int J Biol Macromol 2024; 261:129667. [PMID: 38272401 DOI: 10.1016/j.ijbiomac.2024.129667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 01/14/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024]
Abstract
Gastroesophageal reflux disease (GERD) is a prevalent gastrointestinal condition characterized by regurgitating stomach contents into the esophagus, causing mucosal damage or erosion. Clinical physical protection treatment mainly relies on the use of floating rafts. Bletilla striata (BS) is widely regarded as the first-choice drug for treating digestive tract injuries in Chinese Medicine. The rapid-floating gel-raft (B-R) was prepared via a one-step swelling method using natural BS polysaccharide and glyceryl monooleate. Panax notoginseng saponins (PNS) were loaded to further prepare P/B-R according to clinical experience. Possessing hydrophobic dense, stratified porous structure and stable rheological properties, an outperforming floating performance of P/B-R was proven compared with Gaviscon® (alginate-antacid formulation) in vitro. In vivo imaging results showed that P/B-R can retain and adhere to the gastric mucosa of rats for up to 90 min, protecting and repairing the mucosa. Besides physical protection in situ, the systemic effects of antioxidant and anti-inflammatory actions for treating GERD were achieved through the intestinal release of PNS. Acid-labile PNS was protected by P/B-R against gastric acid, attaining the desired release and permeability. A significantly effective mucosa injury protective effect of P/B-R was found in ethanol-induced gastric damage model on rats. Moreover, P/B-R exhibits excellent biosafety at the cellular level.
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Affiliation(s)
- Na Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Guoqin Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xueyan Zhang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yi Liu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yan Kong
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Meng Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, PR China..
| | - Xiaoliang Ren
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
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Chen H, Wu Y, Wang B, Kui M, Xu J, Ma H, Li J, Zeng J, Gao W, Chen K. Skin healthcare protection with antioxidant and anti-melanogenesis activity of polysaccharide purification from Bletilla striata. Int J Biol Macromol 2024; 262:130016. [PMID: 38365139 DOI: 10.1016/j.ijbiomac.2024.130016] [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: 01/05/2024] [Revised: 01/28/2024] [Accepted: 02/05/2024] [Indexed: 02/18/2024]
Abstract
In this study, we investigated the structural characterization and biological activities of Bletilla striata polysaccharides (BSPs) for their role as antioxidants and anti-melanogenesis agents in skin healthcare protection. Three neutral polysaccharides (BSP-1, BSP-2, and BSP-3) with molecular weights of 269.121 kDa, 57.389 kDa, and 28.153 kDa were extracted and purified. Their structural characteristics were analyzed by ion chromatography, GC-MS, and 1D/2D NMR. The results showed that BSP-1, which constitutes the major part of BSPs, was composed of α-D-Glcp, β-D-Glcp, β-D-Manp, and 2-O-acetyl-β-D-Manp, with the branched-chain accompanied by β-D-Galp and α-D-Glcp. BSP-1, BSP-2, and BSP-3 can enhance the total antioxidant capacity of skin fibroblasts with non-toxicity. Meanwhile, BSP-1, BSP-2, and BSP-3 could significantly inhibit the proliferative activity of melanoma cells. Among them, BSP-1 and BSP-2 showed more significance in anti-melanogenesis, tyrosinase inhibition activity, and cell migration inhibition. BSPs have effective antioxidant capacity and anti-melanogenesis effects, which should be further emphasized and developed as skin protection components.
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Affiliation(s)
- Haoying Chen
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Yan Wu
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Bin Wang
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, No. 100, West Outer Ring Road, Guangzhou University Town, Panyu District, Guangzhou 510006, PR China.
| | - Minghong Kui
- Guangdong Guanhao High-Tech Co., Ltd., No. 313 Donghai Avenue, Donghai Island, Zhanjiang 524072, PR China
| | - Jun Xu
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, No. 100, West Outer Ring Road, Guangzhou University Town, Panyu District, Guangzhou 510006, PR China
| | - Hongsheng Ma
- Guangdong Guanhao New Material R & D Co., Ltd., Xiangjiang Financial Business Center, Nansha District, Guangzhou 511457, PR China
| | - Jinpeng Li
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, No. 100, West Outer Ring Road, Guangzhou University Town, Panyu District, Guangzhou 510006, PR China
| | - Jinsong Zeng
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, No. 100, West Outer Ring Road, Guangzhou University Town, Panyu District, Guangzhou 510006, PR China
| | - Wenhua Gao
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, No. 100, West Outer Ring Road, Guangzhou University Town, Panyu District, Guangzhou 510006, PR China
| | - Kefu Chen
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, No. 100, West Outer Ring Road, Guangzhou University Town, Panyu District, Guangzhou 510006, PR China
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Fan Y, Hong R, Sun X, Luo Q, Wei H, Chen Y, Zhang Z, Zhou X, Wan J. Gastric acid-responsive deformable sodium alginate/Bletilla striata polysaccharide in situ gel for the protection and treatment of alcohol-induced peptic ulcers. Int J Biol Macromol 2024; 258:128815. [PMID: 38114010 DOI: 10.1016/j.ijbiomac.2023.128815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/21/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023]
Abstract
First-line drugs for peptic ulcer (PU) treatment are typically limited by poor targeting and adverse effects associated with long-term use. Despite recent advancements in novel therapeutic approaches for PU, the development of sustained-release delivery systems tailored to specific pathological characteristics remains challenging. Persistent inflammation, particularly gastric inflammatory microenvironment imbalance, characterizes the PU. In this study, we prepared an in situ gel composed of sodium alginate, deacetylated gellan gum, calcium citrate, and Bletilla striata polysaccharide (BSP) to achieve sustained release of BSP. The BSP in situ gel demonstrated favorable fluidity in vitro and completed self-assembly in vivo in response to the acidic milieu at a pH of 1.5. Furthermore, the shear, extrusion, and deformation properties increased by 26.4 %, 103.7 %, and 46.3 %, respectively, with long-term gastric retention (4 h) and mucosal adaptation. Animal experiments confirmed that the BSP in situ gel could attenuate necrotic injury and inflammatory cell infiltration, maintain mucosal barrier integrity, regulate cytokine imbalance and inflammation-associated hyperapoptosis, thus effectively alleviate the inflammatory microenvironmental imbalance in PU without significant side effects. Overall, our findings demonstrated that the BSP in situ gel is a promising therapeutic strategy for PU and opens avenues for developing self-assembled formulations targeting the pathological features of PUs.
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Affiliation(s)
- Yilin Fan
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Ran Hong
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Xiaoli Sun
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Qiaomei Luo
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Huilin Wei
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Yajuan Chen
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Zengni Zhang
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Xia Zhou
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China
| | - Jun Wan
- School of Life Science and Engineering, Southwest Jiaotong University, 610031, China.
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Bai L, Wang T, Deng Q, Zheng W, Li X, Yang H, Tong R, Yu D, Shi J. Dual properties of pharmacological activities and preparation excipient: Bletilla striata polysaccharides. Int J Biol Macromol 2024; 254:127643. [PMID: 37898246 DOI: 10.1016/j.ijbiomac.2023.127643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/06/2023] [Accepted: 10/22/2023] [Indexed: 10/30/2023]
Abstract
Bletilla striata has been used for thousands of years and shows the functions of stopping bleeding, reducing swelling, and promoting healing in traditional applications. For Bletilla striata, Bletilla striata polysaccharides (BSP) is the main active ingredient, exhibiting biological functions of anti-inflammatory, anti-oxidant, anti-fibrotic, immune modulation, anti-glycation, and so on. In addition, BSP has exhibited the characteristics of excipient such as bio-adhesion, bio-degradability, and bio-safety and has been prepared into a series of preparations such as nanoparticles, microspheres, microneedles, hydrogels, etc. BSP, as both a drug and an excipient, has already aroused more and more attention. In this review, publications in recent years related to the extraction and identification, biological activities, and excipient application of BSP are reviewed. Specifically, we focused on the advances in the application of BSP as a formulation excipient. We hold opinion that BSP not only needed more researches in the mechanisms, but also the development into hydrogels, nano-formulations, tissue engineering, and so on. And we believe that this paper provides a beneficial reference for further BSP innovation and in-depth research and promotes the use of these natural products in pharmaceutical applications.
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Affiliation(s)
- Lan Bai
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China; The State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ting Wang
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Qichuan Deng
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Wei Zheng
- Department of Pharmacy, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xinyu Li
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Hao Yang
- Power China Chengdu Engineering Corporation Limited, Chengdu, China
| | - Rongsheng Tong
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
| | - Dongke Yu
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
| | - Jianyou Shi
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China; The State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
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Xue H, Gao Y, Wu L, Cai X, Liao J, Tan J. Research progress in extraction, purification, structure of fruit and vegetable polysaccharides and their interaction with anthocyanins/starch. Crit Rev Food Sci Nutr 2023:1-26. [PMID: 38108271 DOI: 10.1080/10408398.2023.2291187] [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: 12/19/2023]
Abstract
Fruits and vegetables contain polysaccharides, polyphenols, antioxidant enzymes, and various vitamins, etc. Fruits and vegetables polysaccharides (FVPs), as an important functional factor in health food, have various biological activities such as lowering blood sugar, blood lipids, blood pressure, inhibiting tumors, and delaying aging, etc. In addition, FVPs exhibit good physicochemical properties including low toxicity, biodegradability, biocompatibility. Increasing research has confirmed that FVPs could enhance the stability and biological activities of anthocyanins, affecting their bioavailability to improve food quality. Simultaneously, the addition of FVPs in natural starch suspension could improve the physicochemical properties of natural starch such as viscosity, gelling property, water binding capacity, and lotion stability. Hence, FVPs are widely used in the modification of natural anthocyanins/starch. A systematic review of the latest research progress and future development prospects of FVPs is very necessary to better understand them. This paper systematically reviews the latest progress in the extraction, purification, structure, and analysis techniques of FVPs. Moreover, the review also introduces the potential mechanisms, evaluation methods, and applications of the interaction between polysaccharides and anthocyanins/starch. The findings can provide important references for the further in-depth development and utilization of FVPs.
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Affiliation(s)
- Hongkun Xue
- College of Traditional Chinese Medicine, Hebei University, Baoding, China
| | - Yuchao Gao
- College of Traditional Chinese Medicine, Hebei University, Baoding, China
| | - Liu Wu
- College of Traditional Chinese Medicine, Hebei University, Baoding, China
| | - Xu Cai
- Key Laboratory of Particle & Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing, China
| | - Jianqing Liao
- College of Physical Science and Engineering, Yichun University, Yichun, Jiangxi, China
| | - Jiaqi Tan
- College of Traditional Chinese Medicine, Hebei University, Baoding, China
- Medical Comprehensive Experimental Center, Hebei University, Baoding, China
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