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Huang C, Lyu C, Mok HL, Xu Y, Cheng KW, Zhang C, Hu D, Zhu L, Lin C, Chen X, Tan HY, Bian Z. Tolerogenic dendritic cell-mediated regulatory T cell differentiation by Chinese herbal formulation attenuates colitis progression. J Adv Res 2024:S2090-1232(24)00167-X. [PMID: 38677546 DOI: 10.1016/j.jare.2024.04.023] [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: 01/23/2024] [Revised: 03/31/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024] Open
Abstract
INTRODUCTION Ulcerative colitis (UC) is a chronic inflammatory disease characterized by loss of immune tolerance to luminal antigens and progressive intestinal tissue injury. Thus, the re-establishment of immune tolerance is crucial for suppressing aberrant immune responses and UC progression. OBJECTIVES This study aimed to investigate the mechanisms underlying the action of CDD-2103 and its bioactive compounds in mediating immune regulation in mouse models of colitis. METHODS Two experimental colitis models, chronic 2,4,6-trinitrobenzene sulfonic acid (TNBS)- and T-cell transfer-induced Rag1-/- mice, were used to determine the effects of CDD-2103 on colitis progression. Single-cell transcriptome analysis was used to profile the immune landscape and its interactions after CDD-2103 treatment. Liquid chromatography-mass spectrometry (LC-MS) was used to analyze the major components interacting with lymphoid cells. A primary cell co-culture system was used to confirm the effects of bioactive component. RESULTS CDD-2103 dose-dependently suppresses the progression of colitis induced by chemicals or T cell transplantation in Rag1-/- mice. The effect of CDD-2103 is primarily attributable to an increase in the de novo generation of regulatory T cells (Tregs) in the lamina propria (LP). Single-cell transcriptomic analysis revealed that CDD-2103 treatment increased the number of tolerogenic dendritic cells (DCs). Mechanistically, CDD-2103 promoted tolerogenic DCs accumulation and function by upregulating several genes in the electron transport chain related to oxidative phosphorylation, leading to increased differentiation of Tregs. Further LC-MS analysis identified several compounds in CDD-2103, particularly those distributed within the mesenteric lymph nodes of mice. Subsequent studies revealed that palmatine and berberine promoted tolerogenic bone marrow-derived dendritic cells (BMDC)-mediated Treg differentiation. CONCLUSION Overall, our study demonstrated that the clinically beneficial effect of CDD-2103 in the treatment of UC is based on the induction of immune tolerance. In addition, this study supports berberine and palmatine as potential chemical entities in CDD-2103 that modulate immune tolerance.
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Affiliation(s)
- Chunhua Huang
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China; School of Chinese Medicine, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Cheng Lyu
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Heung-Lam Mok
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Yiqi Xu
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Ka-Wing Cheng
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China; School of Chinese Medicine, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Cheng Zhang
- School of Chinese Medicine, The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Die Hu
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China; School of Chinese Medicine, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Lin Zhu
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Chengyuan Lin
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China
| | - Xin Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau Special Administrative Regions of China
| | - Hor-Yue Tan
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China; School of Chinese Medicine, Hong Kong Baptist University, Hong Kong Special Administrative Region of China.
| | - Zhaoxiang Bian
- Centre for Chinese Herbal Medicine Drug Development, Hong Kong Baptist University, Hong Kong Special Administrative Region of China; School of Chinese Medicine, Hong Kong Baptist University, Hong Kong Special Administrative Region of China.
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Wang S, Yu J, Liu Y, Yu J, Ma Y, Zhou L, Liu X, Liu L, Li W, Niu X. Bletilla striata polysaccharide attenuated the progression of pulmonary fibrosis by inhibiting TGF-β1/Smad signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 323:117680. [PMID: 38171465 DOI: 10.1016/j.jep.2023.117680] [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: 10/22/2023] [Revised: 12/09/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bletilla striata, a traditional medicinal plant, has been utilized as a folk medicine for many years because of its superior biological activity in China. However, Bletilla striata polysaccharide (BSP) has received less attention, and its specific mechanism for ameliorating pulmonary fibrosis is completely unclear. AIMS OF THE STUDY In this study, we aim to assess BSP on the treatment of PF and explore potential mechanisms. MATERIALS AND METHODS BSP was successfully extracted and purified from Bletilla striata. The mechanisms were assessed in bleomycin-induced pulmonary fibrosis model and lung fibroblasts activated by transforming growth factor-β1 (TGF-β1). Histological analysis, immunofluorescence, Western blot and flow cytometry were used to explore the alterations after BSP intervention. RESULTS The results in vivo showed an anti-PF effect of BSP treatment, which reduced pathogenic damages. Furthermore, TGF-β1-induced abnormal migration and upregulated expression of collagen I (COL1A1), vimentin and α-smooth muscle actin (α-SMA) were suppressed by BSP in L929 cells. Moreover, the abnormal proliferation was retarded by inhibiting the cell cycle of G1 to S phase. Immunofluorescence assay showed that BSP activated autophagy and played an antifibrotic role by inhibiting the expression of p62 and phospho-mammalian target of rapamycin (p-mTOR). Last but not least, the suppression of TGF-β1/Smad signaling pathway was critical for BSP to perform therapeutic effects in vitro and in vivo. CONCLUSION The possible mechanisms were involved in improving ECM deposition, regulating cell migration and proliferation, and promoting cellular autophagy. Briefly, all of the above revealed that BSP might be a novel therapy for treating pulmonary fibrosis.
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Affiliation(s)
- Siqi Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Jiabao Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Yang Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Jinjin Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Yajing Ma
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Lili Zhou
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Xinyao Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Lingyi Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Weifeng Li
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China.
| | - Xiaofeng Niu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 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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Zhu Z, Liang T, Dai G, Zheng J, Dong J, Xia C, Duan B. Extraction, structural-activity relationships, bioactivities, and application prospects of Bletilla striata polysaccharides as ingredients for functional products: A review. Int J Biol Macromol 2023:125407. [PMID: 37327937 DOI: 10.1016/j.ijbiomac.2023.125407] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/22/2023] [Accepted: 06/13/2023] [Indexed: 06/18/2023]
Abstract
Bletilla striata is a well-known medicinal plant with high pharmaceutical and ornamental values. Polysaccharide is the most important bioactive ingredient in B. striata and has various health benefits. Recently, B. striata polysaccharides (BSPs) have attracted much attention from industries and researchers due to their remarkable immunomodulatory, antioxidant, anti-cancer, hemostatic, anti-inflammatory, anti-microbial, gastroprotective, and liver protective effects. Despite the successful isolation and characterization of B. striata polysaccharides (BSPs), there is still limited knowledge regarding their structure-activity relationships (SARs), safety concerns, and applications, which hinders their full utilization and development. Herein, we provided an overview of the extraction, purification, and structural features, as well as the effects of different influencing factors on the components and structures of BSPs. We also highlighted and summarized the diversity of chemistry and structure, specificity of biological activity, and SARs of BSP. The challenges and opportunities of BSPs in the food, pharmaceutical, and cosmeceutical fields are discussed, and the potential development and future study direction are scrutinized. This article provides comprehensive knowledge and underpinnings for further research and application of BSPs as therapeutic agents and multifunctional biomaterials.
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Affiliation(s)
- Zemei Zhu
- College of Pharmaceutical Science, Dali University, Dali 671000, China
| | - Tingting Liang
- College of Pharmaceutical Science, Dali University, Dali 671000, China
| | - Guona Dai
- College of Pharmaceutical Science, Dali University, Dali 671000, China
| | - Jiamei Zheng
- College of Pharmaceutical Science, Dali University, Dali 671000, China
| | - Jingjing Dong
- College of Pharmaceutical Science, Dali University, Dali 671000, China
| | - Conglong Xia
- College of Pharmaceutical Science, Dali University, Dali 671000, China.
| | - Baozhong Duan
- College of Pharmaceutical Science, Dali University, Dali 671000, China.
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Wang Z, Liu X, Wang J, Fan Z, Shen J, Chen Y, Shao Q, Zheng Y. Effect of Flowering Stages on the Content of Active Ingredients and Antioxidant Capability of Bletilla striata Flowers. Chem Biodivers 2023; 20:e202200773. [PMID: 36629332 DOI: 10.1002/cbdv.202200773] [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: 08/12/2022] [Revised: 01/02/2023] [Accepted: 01/10/2023] [Indexed: 01/12/2023]
Abstract
Bletilla striata (Thunb.) Reichb.f. is a perennial herb with abundant active ingredients. Previous research mainly focused on its tubers, however, the study on flowers, especially the variation of active ingredient contents at different flowering stages, was rarely seen. This study analyzed the total phenols, flavonoids, polysaccharides, anthocyanins, and cyanidin-3-O-glucoside content of B. striata flowers which were in cultivated in Herb Garden of Zhejiang A&F University and collected in May, 2019, in order to investigate the changes in active ingredients and antioxidant capacity among different flowering stages (bud, initial, and full bloom). Changes in radical scavenging capability of DPPH (1,1-Diphenyl-2-picrylhydrazyl radical), ABTS (2,2'-azinobis(3-ethylbenzthiazoline-6-sulphonate)), and hydroxy were analyzed. Significant differences in active ingredient content of flowers were detected among different flowering stages. The total phenolic content increased continuously during the entire flowering stage. The contents of total flavonoid, total polysaccharide, and cyanidin-3-O-glucoside reached peaks at the initial blooming stage and then fell as the flowering process continued. The antioxidant activity in initial stage was the highest than in any other flowering stages. Therefore, we conclude that the initial blooming stage is the best harvesting stage of B. striata flowers. This study provides a robust basis for the harvest and utilization of B. striata flowers in food, medical, and cosmetic industries.
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Affiliation(s)
- Zhen Wang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.,Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xinting Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.,Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jie Wang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.,Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zepeng Fan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.,Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jiayu Shen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.,Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yuanxing Chen
- Forestry Bureau of Yongding District, Longyan, 361000, China
| | - Qingsong Shao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.,Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, 311300, China
| | - Ying Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.,Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, 311300, China
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