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Zhou L, Meng H, Guo W, Liu F, Hu Z, Ren X, Qu W, Gao G. Anthocyanidin-Loaded Superabsorbent Self-Pumping Dressings for Macrophage Immunomodulation and Diabetic Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:41949-41959. [PMID: 39093717 DOI: 10.1021/acsami.4c09902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Management of diabetic chronic wound exudate is a serious challenge in healthcare worldwide since it is related to the speed of diabetic wound healing. However, current foam dressings not only absorb fluid to generate swelling and compress the wound to hinder wound healing but also are very thick and less comfortable to use. Herein, a superabsorbent self-pumping ultrathin dressing is reported to accelerate diabetic wound healing by achieving superior exudate absorption and management in an ultrathin state. The self-pumping dressing is composed of a drainage layer loaded with anthocyanidin and a thermoplastic polyurethane absorbent layer embedded with superabsorbent particles. The dressing realizes the self-pumping process of unidirectional exudate draining to the absorption layer through the drainage layer without significant dressing swelling to compress the diabetic wound. The dressing is experimentally proven to unidirectionally drain excessive exudate with inflammatory factors and modulate the conversion of macrophages from M1 to M2 in diabetic wounds, thereby promoting the healing of diabetic skin ulcers faster than commercial foam dressings. Therefore, the dressing provides a new idea and novel method for accelerating diabetic skin ulcer healing.
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Affiliation(s)
- Lubin Zhou
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, China
| | - Hongqi Meng
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Wenlai Guo
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Fan Liu
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, China
| | - Zhen Hu
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, China
| | - Xiuyan Ren
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, China
| | - Wenrui Qu
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Guanghui Gao
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, Jilin 130012, China
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2
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Dong D, Cheng Z, Zhang J, Gu Z, Han Z, Hou W, Lv X. Using polycaprolactone and sodium alginate to prepare self-pumping/super-absorbent/transportable drug dressings for stage 3-4 pressure ulcer treatment. Int J Biol Macromol 2024; 278:134711. [PMID: 39151847 DOI: 10.1016/j.ijbiomac.2024.134711] [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: 04/25/2024] [Revised: 07/26/2024] [Accepted: 08/11/2024] [Indexed: 08/19/2024]
Abstract
Pressure ulcer dressings with different functions can enhance wound healing ability to varying degrees; however, pressure ulcer dressings that integrate various functions and break the resistance of bacteria to traditional antibiotics have not been widely studied. We proposed a self-pumping/super-absorbent/transportable drug dressing (PLD-SLD), polycaprolactone (PCL)/sodium alginate (SA) was used to load platelet-derived growth factor (PDGF) and lidocaine hydrochloride (LID) by Janus electrospinning and self-assembly technology, and Ɛ-polylysine was used as a biological bacteriostatic agent to prepare a multi-layer dressing. SEM showed that the dressing had a fluffy structure. The dressing can pump the exudate to the SA layer away from the skin. The swelling ratio reached 1378.667 ± 44.752 %. Coagulate blood in 5 min. On the 8th day, the unclosed area rate of the PLD-SLD dressing group was 16.112 ± 0.088 % lower than that of the model group. Importantly, the dressing can induce the expression of CD31, VEGF, α-SMA, and reduce the expression of CD68, thereby giving priority to wound healing. There was no scar formation after healing. In this study, a new dressing preparation method was proposed for the problems of exudate management, infection control, pain relief and healing promotion of stage 3-4 pressure ulcer healing.
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Affiliation(s)
- Dongxing Dong
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, People's Republic of China; Jilin Provincial Science and Technology Innovation Center of Health Products and Medical Materials with Characteristic Resources, Changchun 130118, People's Republic of China
| | - Zhiqiang Cheng
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, People's Republic of China; Jilin Provincial Science and Technology Innovation Center of Health Products and Medical Materials with Characteristic Resources, Changchun 130118, People's Republic of China.
| | - Jingjing Zhang
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, People's Republic of China; Jilin Provincial Science and Technology Innovation Center of Health Products and Medical Materials with Characteristic Resources, Changchun 130118, People's Republic of China
| | - Zhengyi Gu
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, People's Republic of China
| | - Zhaolian Han
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, People's Republic of China; Jilin Provincial Science and Technology Innovation Center of Health Products and Medical Materials with Characteristic Resources, Changchun 130118, People's Republic of China
| | - Wenli Hou
- Department of Cadre Ward, the First Hospital of Jilin University, 71 Xinmin Street, Chaoyang, Changchun 130021, People's Republic of China.
| | - Xiaoli Lv
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, People's Republic of China; Jilin Provincial Science and Technology Innovation Center of Health Products and Medical Materials with Characteristic Resources, Changchun 130118, People's Republic of China
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3
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Liang Y, Wang W, Qi K, Wei Y, Zhao W, Xie H, Zhao C. Exudate Unidirectional Pump to Promote Glucose Catabolism Triggering Fenton-Like Reaction for Chronic Diabetic Wounds Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404652. [PMID: 39120461 DOI: 10.1002/advs.202404652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/16/2024] [Indexed: 08/10/2024]
Abstract
The massive accumulation of exudate containing high concentrations of glucose causes wound infection and triggers the release of inflammatory factors, which in turn delays the closure of diabetic wounds. In this study, a Janus membrane is constructed by combining glucose oxidase (GOx) and copper ions (Cu2+) for the treatment of diabetic wounds, which is named as Janus@GOx/Cu2+. It consists of hydrophobic, transitional, and superhydrophilic layers in a three-layer structure with gradient hydrophilicity for self-pumping properties. The Janus@GOx/Cu2+ membrane triggers a series of cascading reactions while pumping out diabetic wound exudates. First, glucose oxidase loaded onto the hydrophilic layer of the Janus@GOx/Cu2+ membrane decomposes glucose into hydrogen peroxide (H2O2) and glucuronic acid, reducing the local glucose level. The generated glucuronic acid neutralizes the local alkaline environment of chronic wounds. Simultaneously, the H2O2 interacts with the Cu2+ contained in the hydrophobic layers of the Janus@GOx/Cu2+ membrane via a Fenton-like reaction, generating hydroxyl radicals with excellent bactericidal properties. Cu2+ promotes angiogenesis and wound healing in diabetic wounds. Under the action of multiple responses, the Janus@GOx/Cu2+ membrane promotes wound healing in diabetic infections.
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Affiliation(s)
- Yaxian Liang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Wenjie Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610054, China
| | - Kailong Qi
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yige Wei
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Weifeng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610054, China
| | - Huixu Xie
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610054, China
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Ma X, Lin L, Luo H, Zheng Q, Wang H, Li X, Wang Z, Feng Y, Chen Y. Construction and Performance Study of a Dual-Network Hydrogel Dressing Mimicking Skin Pore Drainage for Photothermal Exudate Removal and On-Demand Dissolution. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403362. [PMID: 39073303 DOI: 10.1002/advs.202403362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/14/2024] [Indexed: 07/30/2024]
Abstract
In recent years, negative pressure wound dressings have garnered widespread attentions. However, it is challenging to drain the accumulated fluid under negative pressures for hydrogel dressings. To address this issue, this study prepared a chemical/physical duel-network PEG-CMCS/AG/MXene hydrogel composed by chemical disulfide crosslinked network of four-arm polyethylene glycol/carboxymethyl chitosan (4-Arm-PEG-SH/CMCS), and the physical network of hydrogen bond of agar (AG). Under near-infrared light (NIR) irradiation, the PEG-CMCS/AG/MXene hydrogel undergoes photothermal heating due to integrate of MXene, which destructs the hydrogen bond network and allows the removal of exudate through a mechanism mimicking the sweat gland-like effect of skin pores. The photothermal heating effect also enables the antimicrobial activity to prevent wound infections. The excellent electrical conductivity of PEG-CMCS/AG/MXene can promote cell proliferation under the external electrical stimulation (ES) in vitro. The animal experiments of full-thickness skin defect model further demonstrate its ability to accelerate wound healing. The conversion between thioester and thiol achieved with L-cysteine methyl ester hydrochloride (L-CME) can provides the on-demand dissolution of the dressing in situ. This study holds promises to provide a novel solution to the issue of fluid accumulations under hydrogel dressings and offers new approaches to alleviating or avoiding the significant secondary injuries caused by frequent dressing changes.
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Affiliation(s)
- Xiaoxiao Ma
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Lizhi Lin
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Hang Luo
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Qianqian Zheng
- Department of Polymer Science and Engineering, Zhejiang University, Zhejiang, 310027, China
| | - Hui Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Xiaoyan Li
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Zhenfei Wang
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Yongqiang Feng
- Plastic Surgery Hospital of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100144, China
| | - Yu Chen
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
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5
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Xia Y, Yan S, Wei H, Zhang H, Hou K, Chen G, Cao R, Zhu M. Multifunctional Porous Bilayer Artificial Skin for Enhanced Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34578-34590. [PMID: 38946497 DOI: 10.1021/acsami.4c05074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Meeting the exacting demands of wound healing encompasses rapid coagulation, superior exudate absorption, high antibacterial efficacy, and imperative support for cell growth. In this study, by emulating the intricate structure of natural skin, we prepare a multifunctional porous bilayer artificial skin to address these critical requirements. The bottom layer, mimicking the dermis, is crafted through freeze-drying a gel network comprising carboxymethyl chitosan (CMCs) and gelatin (GL), while the top layer, emulating the epidermis, is prepared via electrospinning poly(l-lactic acid) (PLLA) nanofibers. With protocatechuic aldehyde and gallium ion complexation (PA@Ga) as cross-linking agents, the bottom PA@Ga-CMCs/GL layer featured an adjustable pore size (78-138 μm), high hemostatic performance (67s), and excellent bacterial inhibition rate (99.9%), complemented by an impressive liquid-absorbing capacity (2000% swelling rate). The top PLLA layer, with dense micronanostructure and hydrophobic properties, worked as a shield to effectively thwarted liquid or bacterial penetration. Furthermore, accelerated wound closure, reduced inflammatory responses, and enhanced formation of hair follicles and blood vessels are achieved by the porous artificial skin covered on the surface of wound. Bilayer artificial skin integrates the advantages of nanofibers and freeze-drying porous materials to effectively replicate the protective properties of the epidermal layer of the skin, as well as the cell migration and tissue regeneration of the dermis. This bioabsorbable artificial skin demonstrates structural and functional comparability to real skin, which would advance the field of wound care through its multifaceted capabilities.
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Affiliation(s)
- Yuhan Xia
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Sai Yan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Huidan Wei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Han Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Kai Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Guoyin Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Ran Cao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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6
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Wang L, Ding X, Fan L, Filppula AM, Li Q, Zhang H, Zhao Y, Shang L. Self-Healing Dynamic Hydrogel Microparticles with Structural Color for Wound Management. NANO-MICRO LETTERS 2024; 16:232. [PMID: 38954118 PMCID: PMC11219637 DOI: 10.1007/s40820-024-01422-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 04/22/2024] [Indexed: 07/04/2024]
Abstract
Chronic diabetic wounds confront a significant medical challenge because of increasing prevalence and difficult-healing circumstances. It is vital to develop multifunctional hydrogel dressings, with well-designed morphology and structure to enhance flexibility and effectiveness in wound management. To achieve these, we propose a self-healing hydrogel dressing based on structural color microspheres for wound management. The microsphere comprised a photothermal-responsive inverse opal framework, which was constructed by hyaluronic acid methacryloyl, silk fibroin methacryloyl and black phosphorus quantum dots (BPQDs), and was further re-filled with a dynamic hydrogel. The dynamic hydrogel filler was formed by Knoevenagel condensation reaction between cyanoacetate and benzaldehyde-functionalized dextran (DEX-CA and DEX-BA). Notably, the composite microspheres can be applied arbitrarily, and they can adhere together upon near-infrared irradiation by leveraging the BPQDs-mediated photothermal effect and the thermoreversible stiffness change of dynamic hydrogel. Additionally, eumenitin and vascular endothelial growth factor were co-loaded in the microspheres and their release behavior can be regulated by the same mechanism. Moreover, effective monitoring of the drug release process can be achieved through visual color variations. The microsphere system has demonstrated desired capabilities of controllable drug release and efficient wound management. These characteristics suggest broad prospects for the proposed composite microspheres in clinical applications.
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Affiliation(s)
- Li Wang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, 20520, Turku, Finland
| | - Xiaoya Ding
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325001, People's Republic of China
| | - Lu Fan
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, 20520, Turku, Finland
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325001, People's Republic of China
| | - Anne M Filppula
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, 20520, Turku, Finland
| | - Qinyu Li
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China.
| | - Hongbo Zhang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China.
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, 20520, Turku, Finland.
| | - Yuanjin Zhao
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China.
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China.
| | - Luoran Shang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, People's Republic of China.
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325001, People's Republic of China.
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, People's Republic of China.
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7
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Zheng Y, Zhang H, Wang Z, Lu A, Yu A, Duan B. Chitin nanofibrils assisted 3D printing all-chitin hydrogels for wound dressing. Carbohydr Polym 2024; 334:122028. [PMID: 38553227 DOI: 10.1016/j.carbpol.2024.122028] [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: 12/23/2023] [Revised: 03/02/2024] [Accepted: 03/05/2024] [Indexed: 04/02/2024]
Abstract
The direct ink writing technique used in 3D printing technology is generally applied to designing biomedical hydrogels. Herein, we proposed a strategy for preparing all-chitin-based inks for wound dressing via direct ink writing technique. The β-chitin nanofibers (MACNF) with a high aspect ratio were applied as a nanofiller to modulate the rheological properties of the alkaline dissolved chitin solution. The printing fidelity significantly depends on the MACNF introduction amount to the composite ink. 5-10 wt% MACNF ratio showed superior printing performance. The printed scaffold showed a uniform micron-sized pore structure and a woven network of nanofibers. Due to the good biocompatibility of chitin and the stereoscopic spatial skeleton, this scaffold showed excellent performance as a wound dressing, which can promote cell proliferation, collagen deposition and the angiogenesis of wounds, demonstrating its potential in biomedical applications. This approach successfully balanced the chitinous printability and biofunctions.
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Key Words
- 3D printing
- Ammonium hydroxide aqueous solution (NH(4)OH, AR, PubChem CID: 14923)
- Chitin
- Dimethyl sulfoxide (DMSO, AR, PubChem CID: 679), potassium hydroxide (KOH, AR, PubChem CID: 14797)
- Ethanol absolute (C(2)H(6)O, AR, PubChem CID: 702)
- Hydrochloric acid (HCl, AR, PubChem CID: 313)
- Hydrogen peroxide 30 % aqueous solution (H(2)O(2), AR, PubChem CID: 784)
- Maleic anhydride (C(4)H(2)O(3), AR, PubChem CID: 7923)
- Poly (ethylene glycol)-20000 (PEG20000, AR, PubChem SID:473052978)
- Sodium hydroxide (NaOH, AR, PubChem CID: 14798)
- Wound dressing
- tert-Butanol (AR, PubChem CID: 6386)
- β-Chitin nanofiber
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Affiliation(s)
- Yiran Zheng
- College of Chemistry and Molecular Science, Hubei Engineering Center of Natural Polymer-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, PR China
| | - Hao Zhang
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, PR China
| | - Zhiwei Wang
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, PR China
| | - Ang Lu
- College of Chemistry and Molecular Science, Hubei Engineering Center of Natural Polymer-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, PR China.
| | - Aixi Yu
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, PR China.
| | - Bo Duan
- College of Chemistry and Molecular Science, Hubei Engineering Center of Natural Polymer-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, PR China; Interdisciplinary Institute of NMR and Molecular Sciences, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, PR China.
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Wu H, Gao B, Wu H, Song J, Zhu L, Zhou M, Linghu X, Huang S, Zhou Z, Wa Q. A unidirectional water-transport antibacterial bilayer nanofibrous dressing based on chitosan for accelerating wound healing. Int J Biol Macromol 2024; 269:131878. [PMID: 38692530 DOI: 10.1016/j.ijbiomac.2024.131878] [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: 01/16/2024] [Revised: 04/19/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
Excessive accumulation of exudate from wounds often causes infection and hinders skin regeneration. To handle wound exudate quickly and prevent infection, we developed an antibacterial Janus nanofibrous dressing with a unidirectional water-transport function. The dressing consists of a hydrophilic chitosan aerogel (CS-A) as the outer layer and a hydrophobic laurylated chitosan (La-CS) nanofibrous membrane as the inner layer. These dressings achieved excellent liquid absorption performance (2987.8 ± 123.5 %), air and moisture permeability (997.8 ± 23.1 g/m2/day) and mechanical strength (5.1 ± 2.6 MPa). This performance was obtained by adjusting the density of CS-A and the thickness of the La-CS membrane. Moreover, the dressing did not induce significant toxicity to cells and can prevent bacterial aggregation and infection at the wound site. Animal experiments showed that the dressing can shorten the inflammatory phase, enhance blood vessel generation, and accelerate collagen deposition, thus promoting wound healing. Overall, these results suggest that this Janus dressing is a promising material for clinical wound care.
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Affiliation(s)
- Hengpeng Wu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Botao Gao
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510632, China
| | - Honghan Wu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Jiaxiang Song
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Li Zhu
- Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Xiaogan 432000, China
| | - Meng Zhou
- Xiaonan District Branch of Hubei Agricultural Broadcasting and Television School, Xiaogan 432000, China
| | - Xitao Linghu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Shuai Huang
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510632, China.
| | - Zongbao Zhou
- Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Xiaogan 432000, China.
| | - Qingde Wa
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China.
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9
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Xiao W, Wan X, Shi L, Ye M, Zhang Y, Wang S. A Viscous-Biofluid Self-Pumping Organohydrogel Dressing to Accelerate Diabetic Wound Healing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401539. [PMID: 38549454 DOI: 10.1002/adma.202401539] [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: 01/29/2024] [Revised: 03/22/2024] [Indexed: 04/11/2024]
Abstract
Viscous biofluids on wounds challenge conventional "water-absorbing" wound dressings in efficient drainage due to their poor fluidity, generally causing prolonged inflammation, anti-angiogenesis, and delayed wound closure. Herein, it is reported that a self-pumping organohydrogel dressing (SPD) with aligned hydrated hydrogel channels, prepared by a three-dimensional-templated wetting-enabled-transfer (3D-WET) polymerization process, can efficiently drain viscous fluids and accelerate diabetic wound healing. The asymmetric wettability of the hydrophobic-hydrophilic layers and aligned hydrated hydrogel channels enable unidirectional and efficient drainage of viscous fluids away from the wounds, preventing their overhydration and inflammatory stimulation. The organogel layer can adhere onto the skin around the wounds but can be easily detached from the wet wound area, avoiding secondary trauma to the newly formed tissues. Taking a diabetic rat model as an example, the SPD can significantly downregulate the inflammation response by ≈70.8%, enhance the dermal remodeling by ≈14.3%, and shorten wound closure time by about 1/3 compared with the commercial dressing (3M, Tegaderm hydrocolloid thin dressing). This study sheds light on the development of the next generation of functional dressings for chronic wounds involving viscous biofluids.
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Affiliation(s)
- Wuyi Xiao
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xizi Wan
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Lianxin Shi
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Maosheng Ye
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yikai Zhang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shutao Wang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215123, P. R. China
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10
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Zhang Z, Li J, Wang Y, Wang X, Wang L, Qiu Y, Li F, Li J, Ji M, Man J. Preparation of pH-sensitive porous polylactic acid-based medical dressing with self-pumping function. Int J Biol Macromol 2024; 267:131563. [PMID: 38626837 DOI: 10.1016/j.ijbiomac.2024.131563] [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: 12/15/2023] [Revised: 03/24/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
Excessive exudation from the wound site and the difficulty of determining the state of wound healing can make medical management more difficult and, in extreme cases, lead to wound deterioration. In this study, we fabricated a pH-sensitive colorimetric chronic wound dressing with self-pumping function using electrostatic spinning technology. It consisted of three layers: a polylactic acid-curcumin (PCPLLA) hydrophobic layer, a hydrolyzed polyacrylonitrile (HPAN) transfer layer, and a polyacrylonitrile-purple kale anthocyanin (PAN-PCA) hydrophilic layer. The results showed that the preparation of porous PLLA fiber membrane loaded with 0.2 % Cur was achieved by adjusting the spinning-related parameters, which could ensure that the composite dressing had sufficient anti-inflammatory, antibacterial and antioxidant properties. The HPAN membrane treated with alkali for 30 min had significantly enhanced liquid wetting ability, and the unidirectional transport of liquid could be achieved by simple combination with the 20 um PCPLLA fiber membrane. In addition, the 4 % loaded PCA showed more obvious color difference than the colorimetric membrane. In vivo and ex vivo experiments have demonstrated the potential of multifunctional dressings for the treatment of chronic wounds.
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Affiliation(s)
- Zijian Zhang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Jianyong Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China.
| | - Yi Wang
- Department of Dermatology, Central Hospital Affiliated to Shandong First Medical University, Jinan 250013, China.
| | - Xiaojie Wang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan 250012, China
| | - Liming Wang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Yinghua Qiu
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Fangyi Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Jianfeng Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Maocheng Ji
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Jia Man
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China.
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11
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Tu Z, Liu M, Xu C, Wei Y, Lu T, Xiao Y, Li H, Zhang S, Xie X, Li J, Wen W. Functional 2D Nanoplatforms Alleviate Eosinophilic Chronic Rhinosinusitis by Modulating Eosinophil Extracellular Trap Formation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307800. [PMID: 38477549 PMCID: PMC11109617 DOI: 10.1002/advs.202307800] [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: 10/17/2023] [Revised: 01/23/2024] [Indexed: 03/14/2024]
Abstract
The therapeutic outcomes of patients with eosinophilic chronic rhinosinusitis (ECRS) remain unsatisfactory, largely because the underlying mechanisms of eosinophilic inflammation are uncertain. Here, it is shown that the nasal secretions of ECRS patients have high eosinophil extracellular trap (EET) and cell-free DNA (cfDNA) levels. Moreover, the cfDNA induced EET formation by activating toll-like receptor 9 (TLR9) signaling. After demonstrating that DNase I reduced eosinophilic inflammation by modulating EET formation, linear polyglycerol-amine (LPGA)-coated TiS2 nanosheets (TLPGA) as functional 2D nanoplatforms with low cytotoxicity, mild protein adsorption, and increased degradation rate is developed. Due to the more flexible linear architecture, TLPGA exhibited higher cfDNA affinity than the TiS2 nanosheets coated with dendritic polyglycerol-amine (TDPGA). TLPGA reduced cfDNA levels in the nasal secretions of ECRS patients while suppressing cfDNA-induced TLR9 activation and EET formation in vitro. TLPGA displayed exceptional biocompatibility, preferential nasal localization, and potent inflammation modulation in mice with eosinophilic inflammation. These results highlight the pivotal feature of the linear molecular architecture and 2D sheet-like nanostructure in the development of anti-inflammation nanoplatforms, which can be exploited for ECRS treatment.
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Affiliation(s)
- Zhaoxu Tu
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Ming Liu
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Changyi Xu
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Department of Clinical LaboratoryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Yi Wei
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Tong Lu
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Yongqiang Xiao
- ENT instituteEye & ENT HospitalFudan UniversityShanghai201114China
| | - Hongxia Li
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Shuaiyin Zhang
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Xinran Xie
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Jian Li
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Weiping Wen
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
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12
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Yan M, Hu SY, Wang ZG, Hong R, Peng X, Kuzmanović M, Yang M, Dai R, Wang Y, Gou J, Li K, Xu JZ, Li ZM. Antibacterial, Fatigue-Resistant, and Self-Healing Dressing from Natural-Based Composite Hydrogels for Infected Wound Healing. Biomacromolecules 2024; 25:2438-2448. [PMID: 38502912 DOI: 10.1021/acs.biomac.3c01385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The treatment of infected wounds faces substantial challenges due to the high incidence and serious infection-related complications. Natural-based hydrogel dressings with favorable antibacterial properties and strong applicability are urgently needed. Herein, we developed a composite hydrogel by constructing multiple networks and loading ciprofloxacin for infected wound healing. The hydrogel was synthesized via a Schiff base reaction between carboxymethyl chitosan and oxidized sodium alginate, followed by the polymerization of the acrylamide monomer. The resultant hydrogel dressing possessed a good self-healing ability, considerable compression strength, and reliable compression fatigue resistance. In vitro assessment showed that the composite hydrogel effectively eliminated bacteria and exhibited an excellent biocompatibility. In a model of Staphylococcus aureus-infected full-thickness wounds, wound healing was significantly accelerated without scars through the composite hydrogel by reducing wound inflammation. Overall, this study opens up a new way for developing multifunctional hydrogel wound dressings to treat wound infections.
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Affiliation(s)
- Ming Yan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Shi-Yu Hu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhi-Guo Wang
- West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Rui Hong
- West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Xu Peng
- Experimental and Research Animal Institute, Sichuan University, Chengdu 610065, China
| | - Maja Kuzmanović
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Min Yang
- West China Hospital of Department of Pediatric Surgery, Sichuan University, Chengdu 610041, China
| | - Rui Dai
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yanqiong Wang
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Juxiang Gou
- West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Ka Li
- West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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13
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Deng H, Jiang Y, Deng J, Chang F, Chen J, Sun X, Cheng D, Wang Z, Li R, Liu J, Li Y, Zhang L, Yin P. Extracellular vesicles produced by 3D cultured MSCs promote wound healing by regulating macrophage activation through ANXA1. Biomater Sci 2024; 12:1761-1770. [PMID: 38375617 DOI: 10.1039/d3bm02035e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The conundrum of wound healing has transformed into an imminent medical challenge. Presently, cell-free therapy centered around extracellular vesicles (EVs) has become a pivotal and promising research avenue. EVs generated from three-dimensional (3D) cell cultures have been previously established to possess enhanced tissue regeneration potential, although the underlying mechanisms remain elusive. In this study, we observed higher expression of annexin ANXA1 in 3D-cultured EVs. Remarkably, 3D-EVs with elevated ANXA1 expression demonstrated a more potent capacity to promote macrophage polarization from the M1 phenotype to the M2 phenotype. Concurrently, they exhibited superior abilities to enhance cell migration and tube formation, facilitating expedited wound healing in animal experiments. Conversely, the application of an ANXA1 inhibitor counteracted the positive effects of 3D-EVs. Taken together, our data validate that extracellular vesicles derived from 3D-cultured MSCs regulate macrophage polarization via ANXA1, thereby fostering wound healing.
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Affiliation(s)
- Hao Deng
- Medical School of Chinese PLA, Beijing, China
- The Third Affiliated Hospital of Jinzhou Medical University, Department of Orthopedics, Jinzhou, Liaoning, China
| | - Yuheng Jiang
- The Fourth Medical Center of Chinese PLA General Hospital, Senior Department of Orthopedics, Beijing, China.
- National Clinical Research Center for Orthopaedics, Sports Medicine and Rehabilitation, Beijing, China
- General Hospital of Southern Theater Command of PLA, Department of Orthopedics, Guangzhou, China
| | - Junhao Deng
- The Fourth Medical Center of Chinese PLA General Hospital, Senior Department of Orthopedics, Beijing, China.
- National Clinical Research Center for Orthopaedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Feifan Chang
- Nankai University School of Medicine, Tianjin, China
| | - Junyu Chen
- Nankai University School of Medicine, Tianjin, China
| | - Xinyu Sun
- Medical School of Chinese PLA, Beijing, China
| | - Dongliang Cheng
- Medical School of Chinese PLA, Beijing, China
- General Hospital of Northern Theater Command, Department of Urology, Shenyang, Liaoning, China
| | | | - Ran Li
- Medical School of Chinese PLA, Beijing, China
| | - Jiang Liu
- Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yi Li
- The Fourth Medical Center of Chinese PLA General Hospital, Senior Department of Orthopedics, Beijing, China.
- National Clinical Research Center for Orthopaedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Licheng Zhang
- The Fourth Medical Center of Chinese PLA General Hospital, Senior Department of Orthopedics, Beijing, China.
- National Clinical Research Center for Orthopaedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Pengbin Yin
- The Fourth Medical Center of Chinese PLA General Hospital, Senior Department of Orthopedics, Beijing, China.
- National Clinical Research Center for Orthopaedics, Sports Medicine and Rehabilitation, Beijing, China
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14
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Tu Z, Zhu Y, Gao W, Liu M, Wei Y, Xu C, Xiao Y, Wen Y, Li J, Leong KW, Wen W. Tackling Severe Neutrophilic Inflammation in Airway Disorders with Functionalized Nanosheets. ACS NANO 2024; 18:7084-7097. [PMID: 38377352 DOI: 10.1021/acsnano.3c11139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Severe airway inflammatory disorders impose a significant societal burden, and the available treatments are unsatisfactory. High levels of neutrophil extracellular trap (NET) and cell-free DNA (cfDNA) were detected in the inflammatory microenvironment of these diseases, which are closely associated with persistent uncontrolled neutrophilic inflammation. Although DNase has proven to be effective in mitigating neutrophilic airway inflammation in mice by reducing cfDNA and NET levels, its clinical use is hindered by severe side effects. Here, we synthesized polyglycerol-amine (PGA) with a series of hydroxyl/amine ratios and covered them with black phosphorus (BP) nanosheets. The BP nanosheets functionalized with polyglycerol-50% amine (BP-PGA50) efficiently lowered cfDNA levels, suppressed toll-like receptor 9 (TLR9) activation and inhibited NET formation in vitro. Importantly, BP-PGA50 nanosheets demonstrated substantial accumulation in inflamed airway tissues, excellent biocompatibility, and potent inflammation modulation ability in model mice. The 2D sheet-like structure of BP-PGA50 was identified as a crucial factor for the therapeutic efficacy, and the hydroxyl/amine ratio was revealed as a significant parameter to regulate the protein resistance, cfDNA-binding efficacy, and cytotoxicity. This study shows the promise of the BP-PGA50 nanosheet for tackling uncontrolled airway inflammation, which is also significant for the treatment of other neutrophilic inflammatory diseases. In addition, our work also highlights the importance of proper surface functionalization, such as hydroxyl/amine ratio, in therapeutic nanoplatform construction for inflammation modulation.
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Affiliation(s)
- Zhaoxu Tu
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yuefei Zhu
- Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Wenlong Gao
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Ming Liu
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yi Wei
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Changyi Xu
- Department of Clinical Laboratory, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yongqiang Xiao
- ENT Institute, Eye & ENT Hospital, Fudan University, Shanghai 201114, China
| | - Yihui Wen
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Jian Li
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Weiping Wen
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
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15
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Ying X, Yu C, Yang W, Ye L, Sun R, Gu T, Fan S, Yao S. The transformation of multifunctional bio-patch to hydrogel on skin wounds for efficient scarless wound healing. Mater Today Bio 2024; 24:100901. [PMID: 38188643 PMCID: PMC10770564 DOI: 10.1016/j.mtbio.2023.100901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/19/2023] [Accepted: 12/03/2023] [Indexed: 01/09/2024] Open
Abstract
Hydrogels have been widely used in various biomedical applications, including skin regeneration and tissue repair. However, the capability of certain hydrogels to absorb exudate or blood from surrounding wounds, coupled with the challenge in their long-term storage to prevent bacterial growth, can pose limitations to their efficacy in biological applications. To address these challenges, the development of a multifunctional aloin-arginine-alginate (short for 3A) bio-patch capable of transforming into a hydrogel upon absorbing exudate or blood from neighboring wounds for cutaneous regeneration is proposed. The 3A bio-patch exhibits outstanding features, including an excellent porous structure, swelling properties, and biodegradability. These characteristics allow for the rapid absorption of wound exudates and subsequent transformation into a hydrogel that is suitable for treating skin wounds. Furthermore, the 3A bio-patch exhibits remarkable antibacterial and anti-inflammatory properties, leading to accelerated wound healing and scarless repair in vivo. This study presents a novel approach to the development of cutaneous wound dressing materials.
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Affiliation(s)
- Xiaozhang Ying
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
- Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, Zhejiang, 310003, China
| | - Congcong Yu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Wentao Yang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Lin Ye
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Rongtai Sun
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Tianyuan Gu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
| | - Shasha Yao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310016, China
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16
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Su H, Chen Y, Jing X, Zhao X, Sun H, Liu Z, Qiu Y, Zhang Z, Guan H, Meng L. Antimicrobial, Antioxidant, and Anti-Inflammatory Nanoplatform for Effective Management of Infected Wounds. Adv Healthc Mater 2024; 13:e2302868. [PMID: 37925607 DOI: 10.1002/adhm.202302868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/13/2023] [Indexed: 11/06/2023]
Abstract
Burn wound healing continues to pose significant challenges due to excessive inflammation, the risk of infection, and impaired tissue regeneration. In this regard, an antibacterial, antioxidant, and anti-inflammatory nanocomposite (called HPA) that combines a nanosystem using hexachlorocyclotriphosphazene and the natural polyphenol of Phloretin with silver nanoparticles (AgNPs) is developed. HPA effectively disperses AgNPs to mitigate any toxicity caused by aggregation while also showing the pharmacological activities of Phloretin. During the initial stage of wound healing, HPA rapidly releases silver ions from its surface to suppress bacterial activity. Moreover, these nanoparticles are pH-sensitive and degrade efficiently in the acidic infection microenvironment, gradually releasing Phloretin. This sustained release of Phloretin helps scavenge overexpressed reactive oxygen species in the infected microenvironment area, thus reducing the upregulation of pro-inflammatory cytokines. The antibacterial activity, free radical clearance, and regulation of inflammatory factors of HPA through in vitro experiments are validated. Additionally, its effects using an infectious burn mouse model in vivo are evaluated. HPA is found to promote collagen deposition and epithelialization in the wound area. With its synergistic antibacterial, antioxidant, and anti-inflammatory activities, as well as favorable biocompatibilities, HPA shows great promise as a safe and effective multifunctional nanoplatform for burn injury wound dressings.
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Affiliation(s)
- Huining Su
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yang Chen
- Department of Burns and Cutaneous Surgery, The First Affiliated Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Xunan Jing
- Department of Talent Highland, Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xiaoping Zhao
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Heng Sun
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zhicheng Liu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yao Qiu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zuoliang Zhang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Hao Guan
- Department of Burns and Cutaneous Surgery, The First Affiliated Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Lingjie Meng
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
- Department of Talent Highland, Center for Gut Microbiome Research, Med-X Institute, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an, 710049, China
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