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Xie R, Yan X, Yu J, Shen K, Zhang M, Li M, Lv Z, Zhang Y, Zhang Z, Lyu Y, Cheng Y, Chu D. pH-responsive bioadhesive with robust and stable wet adhesion for gastric ulcer healing. Biomaterials 2024; 309:122599. [PMID: 38703409 DOI: 10.1016/j.biomaterials.2024.122599] [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: 01/30/2024] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
Development of bioadhesives that can be facilely delivered by endoscope and exhibit instant and robust adhesion with gastric tissues to promote gastric ulcer healing remains challenging. In this study, an advanced bioadhesive is prepared through free radical polymerization of ionized N-acryloyl phenylalanine (iAPA) and N-[tris (hydroxymethyl) methyl] acrylamide (THMA). The precursory polymer solution exhibits low viscosity with the capability for endoscope delivery, and the hydrophilic-hydrophobic transition of iAPA upon exposure to gastric acid can trigger gelation through phenyl groups assisted multiple hydrogen bonds formation and repel water molecules on tissue surface to establish favorable environment for interfacial interactions between THMA and functional groups on tissues. The in-situ formed hydrogel features excellent stability in acid environment (14 days) and exhibits firm wet adhesion to gastric tissue (33.4 kPa), which can efficiently protect the wound from the stimulation of gastric acid and pepsin. In vivo studies reveal that the bioadhesive can accelerate the healing of ulcers by inhibiting inflammation and promoting capillary formation in the acetic acid-induced gastric ulcer model in rats. Our work may provide an effective solution for the treatment of gastric ulcers clinically.
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Affiliation(s)
- Ruilin Xie
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China; Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Xueli Yan
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Jing Yu
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Kaixiang Shen
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Mengyuan Zhang
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Meng Li
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Zhuting Lv
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Yuchen Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - Zixi Zhang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Yi Lyu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Yilong Cheng
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, PR China.
| | - Dake Chu
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China.
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Cao X, Wu B, Chen J, Liu Z, Yang Y, Li S, Zhu H, Xu L, Huang H. Hydroxypropyl Cellulose-Based Orally Dissolving Film Loaded with Insoluble Dexamethasone for Treatment of Oral Ulcers. Mol Pharm 2024. [PMID: 38957041 DOI: 10.1021/acs.molpharmaceut.4c00391] [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: 07/04/2024]
Abstract
Oral ulcers present as recurrent and spontaneous lesions, often causing intolerable burning pain that significantly disrupts patients' daily lives and compromises their quality of life. In addressing this clinical challenge, oral dissolving films (ODFs) have emerged as promising pharmaceutical formulations for oral ulcer management due to their rapid onset of action, ease of administration, and portability. In this study, ODFs containing the insoluble drug dexamethasone (Dex) were formulated for the treatment of oral ulcers in rabbits using a solvent casting method with ethanol as the solvent. To optimize the composition of the ODFs, a Box-Behnken Design (BBD) experiment was employed to investigate the effects of varying concentrations of hydroxypropyl cellulose (HPC), low-substituted hydroxypropyl cellulose (L-HPC), and plasticizer (glycerol) on key parameters, such as disintegration time, tensile strength, and peel-off efficiency of the films. Subsequently, the film properties of the Dex-loaded ODFs (ODF@Dex) were thoroughly assessed, revealing favorable attributes, including homogeneity, mechanical strength, and solubility. Notably, the use of ethanol as the solvent in the ODF preparation facilitated the homogeneous distribution of insoluble drugs within the film matrix, thereby enhancing their solubility and dissolution rate. Leveraging the potent pharmacological activity of Dex, ODF@Dex was further evaluated for its efficacy in promoting ulcer healing and mitigating the expression of inflammatory factors both in vitro and in vivo. The findings demonstrated that the ODF@Dex exerted significant antiulcer effects by modulating the PI3K/Akt signaling pathway, thus contributing to ulcer resolution. In conclusion, our study underscores the potential of HPC-based ODFs formulated with ethanol as a solvent as a promising platform for delivering insoluble drugs, offering a viable strategy for the clinical management of oral ulcers.
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Affiliation(s)
- Xinyu Cao
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Bingyu Wu
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Jiayi Chen
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Zhikuan Liu
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Yang Yang
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Shanshan Li
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - Hongyan Zhu
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Lixing Xu
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
| | - Haiqing Huang
- Department of Pharmaceutics, School of Pharmacy, Nantong University, Nantong 226001, China
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3
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Wang H, Yang Y, Xu Y, Chen Y, Zhang W, Liu T, Chen G, Wang K. Phage-based delivery systems: engineering, applications, and challenges in nanomedicines. J Nanobiotechnology 2024; 22:365. [PMID: 38918839 PMCID: PMC11197292 DOI: 10.1186/s12951-024-02576-4] [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: 02/28/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
Bacteriophages (phages) represent a unique category of viruses with a remarkable ability to selectively infect host bacteria, characterized by their assembly from proteins and nucleic acids. Leveraging their exceptional biological properties and modifiable characteristics, phages emerge as innovative, safe, and efficient delivery vectors. The potential drawbacks associated with conventional nanocarriers in the realms of drug and gene delivery include a lack of cell-specific targeting, cytotoxicity, and diminished in vivo transfection efficiency. In contrast, engineered phages, when employed as cargo delivery vectors, hold the promise to surmount these limitations and attain enhanced delivery efficacy. This review comprehensively outlines current strategies for the engineering of phages, delineates the principal types of phages utilized as nanocarriers in drug and gene delivery, and explores the application of phage-based delivery systems in disease therapy. Additionally, an incisive analysis is provided, critically examining the challenges confronted by phage-based delivery systems within the domain of nanotechnology. The primary objective of this article is to furnish a theoretical reference that contributes to the reasoned design and development of potent phage-based delivery systems.
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Affiliation(s)
- Hui Wang
- School of Pharmacy, Nantong University, Nantong, 226001, China
- Qingdao Central Hospital, University of Health and Rehabilitation Sciences (Qingdao Central Medical Group), Qingdao, 266024, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266024, China
| | - Ying Yang
- School of Pharmacy, Nantong University, Nantong, 226001, China
| | - Yan Xu
- School of Pharmacy, Nantong University, Nantong, 226001, China
| | - Yi Chen
- School of Pharmacy, Nantong University, Nantong, 226001, China
| | - Wenjie Zhang
- School of Pharmacy, Nantong University, Nantong, 226001, China
| | - Tianqing Liu
- NICM Health Research Institute, Western Sydney University, Sydney, NSW, 2145, Australia.
| | - Gang Chen
- Qingdao Central Hospital, University of Health and Rehabilitation Sciences (Qingdao Central Medical Group), Qingdao, 266024, China.
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266024, China.
| | - Kaikai Wang
- School of Pharmacy, Nantong University, Nantong, 226001, China.
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Zhang Y, Wang J, Cui Z, Guo S, Wang Y, Li W, Zhou C, Run M, Qin J. Preparation of antibacterial hydrogel from poly(aspartic hydrazide) and quaternized N-[3-(dimethylamino) propyl] methylacrylamide copolymer with antioxidant and hemostatic effects for wound repairing. Colloids Surf B Biointerfaces 2024; 238:113881. [PMID: 38608460 DOI: 10.1016/j.colsurfb.2024.113881] [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: 01/18/2024] [Revised: 03/08/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024]
Abstract
Hydrogels as wound dressing have attracted extensive attention in past decade because they can provide moist microenvironment to promote wound healing. Herein, this research designed a multifunctional hydrogel with antibacterial property and antioxidant activity fabricated from quaternary ammonium bearing light emitting quaternized TPE-P(DAA-co-DMAPMA) (QTPDD) and poly(aspartic hydrazide) (PAH). The protocatechuic aldehyde (PCA) grafted to the hydrogel through dynamic bond endowed the hydrogel with antioxidant activity and the tranexamic acid (TXA) was loaded to enhance the hemostatic performance. The hydrogel possesses preferable gelation time for injectable application, good antioxidant property and tissue adhesion, improved hemostatic performance fit for wound repairing. Furthermore, the hydrogel has excellent antimicrobial property to both E. coli and S. aureus based on quaternary ammonium structure. The hydrogel also showed good biocompatibility and the in vivo experiments proved this hydrogel can promote the wound repairing rate. This study suggests that TXA/hydrogel with quaternary ammonium structure and dynamic grafted PCA have great potential in wound healing applications.
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Affiliation(s)
- Yu Zhang
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Junling Wang
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Zhe Cui
- College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Shuai Guo
- School of Life Sciences, Hebei University, Baoding City, Hebei Province 071002, China
| | - Yong Wang
- Key Laboratory of Pathogenesis mechanism and control of inflammatory-autoimmune diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Wenjuan Li
- Key Laboratory of Pathogenesis mechanism and control of inflammatory-autoimmune diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Chengyan Zhou
- College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China.
| | - Mingtao Run
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China.
| | - Jianglei Qin
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China; Key Laboratory of Pathogenesis mechanism and control of inflammatory-autoimmune diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China.
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5
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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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6
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Huang H, Hou Y, Chen L, He W, Wang X, Zhang D, Hu J. Multifunctional gallic acid self-assembled hydrogel for alleviation of ethanol-induced acute gastric injury. Int J Pharm 2023; 645:123372. [PMID: 37716487 DOI: 10.1016/j.ijpharm.2023.123372] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/13/2023] [Accepted: 09/02/2023] [Indexed: 09/18/2023]
Abstract
Ethanol-induced acute gastric injury is a prevalent type of digestive tract ulcer, yet conventional treatments strategies frequently encounter several limitations, such as poor bioavailability, degradation of enzymes and adverse side effects. Gallic acid (GA), a natural compound extracted from dogwood, has demonstrated potential protective effects in mitigating acute gastric injury. However, its poor stability and limited bioavailability have restricted applications in vivo. To address these issues, we report a hydrogel constructed only by gallic acid with high bioavailability for alleviation of gastric injury. Molecular dynamic simulation studies revealed that the self-assembly of GA into hydrogel was predominantly attributed to π-π and hydrogen bonds. After assembling, the GA hydrogel exhibits superior anti-oxidative stress, anti-apoptosis and anti-inflammatory properties compared with free GA. As anticipated, in vitro experiments demonstrated that GA hydrogel possessed the remarkable ability to promote the proliferation of GES-1 cells, and alleviates apoptosis and inflammation caused by ethanol. Subsequent in vivo investigation further confirmed that GA hydrogel significantly alleviated ethanol-triggered acute gastric injury. Mechanistically, GA hydrogel treatment enhanced the antioxidant capacity, reduced oxidative stress while simultaneously suppressing the secretion of pro-inflammatory cytokines and reduced the production of pro-apoptotic proteins during the process of gastric injury. Our finding suggest that this multifunctional GA hydrogel is a promising candidate for gastric injury, particularly in cases of ethanol-induced acute gastric injury.
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Affiliation(s)
- Haibo Huang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Yiyang Hou
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lihang Chen
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Wanying He
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xinchuang Wang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Dan Zhang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Jiangning Hu
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
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