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Dong T, Hu J, Dong Y, Yu Z, Liu C, Wang G, Chen S. Advanced biomedical and electronic dual-function skin patch created through microfluidic-regulated 3D bioprinting. Bioact Mater 2024; 40:261-274. [PMID: 38973991 PMCID: PMC11226729 DOI: 10.1016/j.bioactmat.2024.06.015] [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: 03/23/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 07/09/2024] Open
Abstract
Artificial skin involves multidisciplinary efforts, including materials science, biology, medicine, and tissue engineering. Recent studies have aimed at creating skins that are multifunctional, intelligent, and capable of regenerating tissue. In this work, we present a specialized 3D printing ink composed of polyurethane and bioactive glass (PU-BG) and prepare dual-function skin patch by microfluidic-regulated 3D bioprinting (MRBP) technique. The MRBP endows the skin patch with a highly controlled microstructure and superior strength. Besides, an asymmetric tri-layer is further constructed, which promotes cell attachment and growth through a dual transport mechanism based on hydrogen bonds and gradient structure from hydrophilic to superhydrophilic. More importantly, by combining the features of biomedical skin with electronic skin (e-skin), we achieved a biomedical and electronic dual-function skin patch. In vivo experiments have shown that this skin patch can enhance hemostasis, resist bacterial growth, stimulate the regeneration of blood vessels, and accelerate the healing process. Meanwhile, it also mimics the sensory functions of natural skin to realize signal detection, where the sensitivity reached up to 5.87 kPa-1, as well as cyclic stability (over 500 cycles), a wide detection range of 0-150 kPa, high pressure resolution of 0.1 % under the pressure of 100 kPa. This work offers a versatile and effective method for creating dual-function skin patches and provide new insights into wound healing and tissue repair, which have significant implications for clinical applications.
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Affiliation(s)
- Ting Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, China
| | - Jie Hu
- Department of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Yue Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, China
| | - Ziyi Yu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, China
| | - Chang Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, China
| | - Gefei Wang
- Department of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, China
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2
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Zhou T, Chen Y, Fu L, Wang S, Ding H, Bai Q, Guan J, Mao Y. In situ MgO nanoparticle-doped Janus electrospun dressing against bacterial invasion and immune imbalance for irregular wound healing. Regen Biomater 2024; 11:rbae107. [PMID: 39246578 PMCID: PMC11379472 DOI: 10.1093/rb/rbae107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/21/2024] [Accepted: 08/18/2024] [Indexed: 09/10/2024] Open
Abstract
Owing to the unpredictable size of wounds and irregular edges formed by trauma, nanofibers' highly customizable and adherent in situ deposition can contribute to intervention in the healing process. However, electrospinning is limited by the constraints of conventional polymeric materials despite its potential for anti-inflammatory and antimicrobial properties. Here, inspired by the Janus structure and biochemistry of nanometal ions, we developed an in situ sprayed electrospinning method to overcome bacterial infections and immune imbalances during wound healing. The bilayer fiber scaffold has a hydrophobic outer layer composed of polycaprolactone (PCL) and a hydrophilic inner layer composed of gelatin, poly(L-lactic acid) (PLLA), and magnesium oxide nanoparticles, constituting the PCL/PLLA-gelatin-MgO (PPGM) electrospun scaffold. This electrospun scaffold blocked the colonization and growth of bacteria and remained stable on the wound for continuous anti-inflammatory properties to promote wound healing. Furthermore, PPGM electrospinning modulated collagen deposition and the inflammatory microenvironment in the full-thickness skin model, significantly accelerating vascularization and epithelialization progression. This personalized Janus electrospun scaffold has excellent potential as a new type of wound dressing for first aid and wound healthcare.
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Affiliation(s)
- Tao Zhou
- Department of Orthopedics, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, China
- Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, 233030, China
| | - Yedan Chen
- School of Life Sciences, Bengbu Medical University, Bengbu, 233030, China
- Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, China
| | - Liangmin Fu
- Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, 233030, China
- Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, China
| | - Shan Wang
- School of Life Sciences, Bengbu Medical University, Bengbu, 233030, China
- Anhui Nerve Regeneration Technology and Medical New Materials Engineering Research Center, Bengbu Medical University, Bengbu, 233030, China
| | - Haihu Ding
- Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, 233030, China
| | - Qiaosheng Bai
- Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, 233030, China
| | - Jingjing Guan
- Department of Orthopedics, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, China
- Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, 233030, China
| | - Yingji Mao
- Department of Orthopedics, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, China
- School of Life Sciences, Bengbu Medical University, Bengbu, 233030, China
- Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, China
- Anhui Nerve Regeneration Technology and Medical New Materials Engineering Research Center, Bengbu Medical University, Bengbu, 233030, China
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3
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Dong Y, Ding Z, Bai Y, Lu LY, Dong T, Li Q, Liu JD, Chen S. Core-Shell Gel Nanofiber Scaffolds Constructed by Microfluidic Spinning toward Wound Repair and Tissue Regeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404433. [PMID: 39005186 DOI: 10.1002/advs.202404433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/19/2024] [Indexed: 07/16/2024]
Abstract
Growing demand for wound care resulting from the increasing chronic diseases and trauma brings intense pressure to global medical health service system. Artificial skin provides mechanical and microenvironmental support for wound, which is crucial in wound healing and tissue regeneration. However, challenges still remain in the clinical application of artificial skin since the lack of the synergy effect of necessary performance. In this study, a multi-functional artificial skin is fabricated through microfluidic spinning technology by using core-shell gel nanofiber scaffolds (NFSs). This strategy can precisely manipulate the microstructure of artificial skin under microscale. The as-prepared artificial skin demonstrates superior characteristics including surface wettability, breathability, high mechanical strength, strain sensitivity, biocompatibility and biodegradability. Notably, this artificial skin has the capability to deliver medications in a controlled and sustained manner, thereby accelerating the wound healing process. This innovative approach paves the way for the development of a new generation of artificial skin and introduces a novel concept for the structural design of the unique core-shell gel NFSs.
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Affiliation(s)
- Yue Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Zongkun Ding
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Yuting Bai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Ling-Yu Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Ting Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Qing Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Ji-Dong Liu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, P. R. China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
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Deng J, Hu M, Cai Z, Yu W, Zhan L, Zhu X, Ke Q, Gao R, Zhou X, Liu H, Li J, Huang C. A Highly Stable, Multifunctional Janus Dressing for Treating Infected Wounds. Adv Healthc Mater 2024:e2401345. [PMID: 38973206 DOI: 10.1002/adhm.202401345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/21/2024] [Indexed: 07/09/2024]
Abstract
The limited and unstable absorption of excess exudate is a major challenge during the healing of infected wounds. In this study, a highly stable, multifunctional Janus dressing with unidirectional exudate transfer capacity is fabricated based on a single poly(lactide caprolactone) (PLCL). The success of this method relies on an acid hydrolysis reaction that transforms PLCL fibers from hydrophobic to hydrophilic in situ. The resulting interfacial affinity between the hydrophilic/phobic PLCL fibers endows the Janus structure with excellent unidirectional liquid transfer and high structural stability against repeated stretching, bending, and twisting. Various other functions, including wound status detection, antibacterial, antioxidant, and anti-inflammatory properties, are also integrated into the dressing by incorporating phenol red and epigallocatechin gallate. An in vivo methicillin-resistant Staphylococcus aureus-infected wound model confirms that the Janus dressing, with the capability to remove exudate from the infected site, not only facilitates epithelialization and collagen deposition, but also ensures low inflammation and high angiogenesis, thus reaching an ideal closure rate up to 98.4% on day 14. The simple structure, multiple functions, and easy fabrication of the dressing may offer a promising strategy for treating chronic wounds, rooted in the challenges of bacterial infection, excessive exudate, and persistent inflammation.
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Affiliation(s)
- Jixia Deng
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Miao Hu
- Department of Orthopedics, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - Zhuyun Cai
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Wenhua Yu
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Lei Zhan
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Xueying Zhu
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Qinfei Ke
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Rui Gao
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Xuhui Zhou
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Honggang Liu
- Tiansheng Nonwoven Technology Co., Ltd, Zhejiang, 321035, China
| | - Juan Li
- Tiansheng Nonwoven Technology Co., Ltd, Zhejiang, 321035, China
| | - Chen Huang
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, 201620, China
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5
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Yang J, Long C, Liu K, Lu X, Zhao J, Hong J, Zhang R, Xia S, Qing Y, Yu M, Zhao Y. Design of chitosan-based drug-loaded laminated materials with superhydrophilic/superhydrophobic properties for simultaneous effective hemostasis and antiadhesion. Int J Biol Macromol 2024; 273:133075. [PMID: 38866274 DOI: 10.1016/j.ijbiomac.2024.133075] [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: 02/27/2024] [Revised: 06/07/2024] [Accepted: 06/09/2024] [Indexed: 06/14/2024]
Abstract
Hemostatic materials play a crucial role in trauma medicine. However, existing materials have poor hemostatic efficacy and a tendency to adhere to the wound surface, limiting their clinical effectiveness. Herein, a drug-loaded, superhydrophilic/superhydrophobic laminated material (DSLM), consisting of a superhydrophobic inner layer with a micropore array, a superhydrophilic chitosan-based sponge layer loaded with hemostatic/antimicrobial drugs, and a superhydrophobic outer layer, was developed. Furthermore, the DSLM allows unidirectional flow of blood and exudates from the wound bed through the superhydrophobic inner layer while facilitating efficient drug delivery. In addition, it possesses excellent biocompatibility and antiadhesion properties, as confirmed by in vivo and in vitro experiments. Compared with traditional hemostatic materials, the DSLM remarkably increased the survival time by over threefold in the acute femoral transaction wound bleeding model, and simultaneously prevented secondary wound damage by reducing peeling force to one-eighth incomparison to pristine gauze. The DSLM holds promise as a versatile clinical biomaterial for prehospital acute trauma treatment, with its simple structure facilitating manufacturing and expanding applications in biomedicine.
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Affiliation(s)
- Jialin Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Cai Long
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Ke Liu
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xinlei Lu
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jingtao Zhao
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jing Hong
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ruizhen Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Shenyi Xia
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yongquan Qing
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Miao Yu
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yunli Zhao
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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6
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Wang H, Zhang Y, Zhang Y, Li C, Zhang M, Wang J, Zhang Y, Du Y, Cui W, Chen W. Activating Macrophage Continual Efferocytosis via Microenvironment Biomimetic Short Fibers for Reversing Inflammation in Bone Repair. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402968. [PMID: 38706203 DOI: 10.1002/adma.202402968] [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: 02/27/2024] [Revised: 04/30/2024] [Indexed: 05/07/2024]
Abstract
Efferocytosis-mediated inflammatory reversal plays a crucial role in bone repairing process. However, in refractory bone defects, the macrophage continual efferocytosis may be suppressed due to the disrupted microenvironment homeostasis, particularly the loss of apoptotic signals and overactivation of intracellular oxidative stress. In this study, a polydopamine-coated short fiber matrix containing biomimetic "apoptotic signals" to reconstruct the microenvironment and reactivate macrophage continual efferocytosis for inflammatory reversal and bone defect repair is presented. The "apoptotic signals" (AM/CeO2) are prepared using CeO2 nanoenzymes with apoptotic neutrophil membrane coating for macrophage recognition and oxidative stress regulation. Additionally, a short fiber "biomimetic matrix" is utilized for loading AM/CeO2 signals via abundant adhesion sites involving π-π stacking and hydrogen bonding interactions. Ultimately, the implantable apoptosis-mimetic nanoenzyme/short-fiber matrixes (PFS@AM/CeO2), integrating apoptotic signals and biomimetic matrixes, are constructed to facilitate inflammatory reversal and reestablish the pro-efferocytosis microenvironment. In vitro and in vivo data indicate that the microenvironment biomimetic short fibers can activate macrophage continual efferocytosis, leading to the suppression of overactivated inflammation. The enhanced repair of rat femoral defect further demonstrates the osteogenic potential of the pro-efferocytosis strategy. It is believed that the regulation of macrophage efferocytosis through microenvironment biomimetic materials can provide a new perspective for tissue repair.
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Affiliation(s)
- Haoran Wang
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yu Zhang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yipu Zhang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
- Department of Orthopaedics, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing, 100191, P. R. China
| | - Chao Li
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Mo Zhang
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
| | - Juan Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yingze Zhang
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
| | - Yawei Du
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Wei Chen
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
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7
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Wu J, Yu F, Shao M, Zhang T, Lu W, Chen X, Wang Y, Guo Y. Electrospun Nanofiber Scaffold for Skin Tissue Engineering: A Review. ACS APPLIED BIO MATERIALS 2024; 7:3556-3567. [PMID: 38777621 DOI: 10.1021/acsabm.4c00318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Skin tissue engineering (STE) is widely regarded as an effective approach for skin regeneration. Several synthetic biomaterials utilized for STE have demonstrated favorable fibrillar characteristics, facilitating the regeneration of skin tissue at the site of injury, yet they have exhibited a lack of in situ degradation. Various types of skin regenerative materials, such as hydrogels, nanofiber scaffolds, and 3D-printing composite scaffolds, have recently emerged for use in STE. Electrospun nanofiber scaffolds possess distinct advantages, such as their wide availability, similarity to natural structures, and notable tissue regenerative capabilities, which have garnered the attention of researchers. Hence, electrospun nanofiber scaffolds may serve as innovative biological materials possessing the necessary characteristics and potential for use in tissue engineering. Recent research has demonstrated the potential of electrospun nanofiber scaffolds to facilitate regeneration of skin tissues. Nevertheless, there is a need to enhance the rapid degradation and limited mechanical properties of electrospun nanofiber scaffolds in order to strengthen their effectiveness in soft tissue engineering applications in clinical settings. This Review centers on advanced research into electrospun nanofiber scaffolds, encompassing preparation methods, materials, fundamental research, and preclinical applications in the field of science, technology, and engineering. The existing challenges and prospects of electrospun nanofiber scaffolds in STE are also addressed.
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Affiliation(s)
- Jingwen Wu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
- Hangzhou CASbios Medical Company Hangzhou 310000, P. R. China
| | - Fenglin Yu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Mingfei Shao
- Hangzhou CASbios Medical Company Hangzhou 310000, P. R. China
| | - Tong Zhang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Weipeng Lu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
- Hangzhou CASbios Medical Company Hangzhou 310000, P. R. China
| | - Xin Chen
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yihu Wang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yanchuan Guo
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
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8
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Yang R, Xu Y, Li R, Zhang Y, Xu Y, Yang L, Cui W, Wang L. Synergistic Biofilter Tube for Promoting Scarless Tendon Regeneration. NANO LETTERS 2024; 24:7381-7388. [PMID: 38833276 PMCID: PMC11194804 DOI: 10.1021/acs.nanolett.4c01540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
Inspired by the imbalance between extrinsic and intrinsic tendon healing, this study fabricated a new biofilter scaffold with a hierarchical structure based on a melt electrowriting technique. The outer multilayered fibrous structure with connected porous characteristics provides a novel passageway for vascularization and isolates the penetration of scar fibers, which can be referred to as a biofilter process. In vitro experiments found that the porous architecture in the outer layer can effectively prevent cell infiltration, whereas the aligned fibers in the inner layer can promote cell recruitment and growth, as well as the expression of tendon-associated proteins in a simulated friction condition. It was shown in vivo that the biofilter process could promote tendon healing and reduce scar invasion. Herein, this novel strategy indicates great potential to design new biomaterials for balancing extrinsic and intrinsic healing and realizing scarless tendon healing.
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Affiliation(s)
- Renhao Yang
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Yidong Xu
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Renxuan Li
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Yin Zhang
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Yang Xu
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Liuquan Yang
- School
of Mechanical Engineering, University of
Leeds, Leeds, LS2 9JT, U.K.
| | - Wenguo Cui
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Lei Wang
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of 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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Chen X, Huang H, Song X, Dong T, Yu J, Xu J, Cheng R, Cui T, Li J. Carboxymethyl chitosan-based hydrogel-Janus nanofiber scaffolds with unidirectional storage-drainage of biofluid for accelerating full-thickness wound healing. Carbohydr Polym 2024; 331:121870. [PMID: 38388058 DOI: 10.1016/j.carbpol.2024.121870] [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: 11/27/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/24/2024]
Abstract
Self-pumping wound scaffolds designed for directional biofluid transport are extensively investigated. They efficiently extract excessive biofluids from wounds, while maintaining an optimally humid wound environment, thus facilitating rapid wound healing. However, the existing designed scaffolds are insufficiently focused on stimulating the hydrophobic layer at the wound site, thereby exacerbating inflammation and impeding the wound healing process. Herein, we engineered and fabricated a hydrophilic-hydrophobic-hydrophilic sandwich-structured hydrogel-Janus nanofiber scaffold (NFS) employing a Layer-by-Layer (LbL) method. This scaffold comprises a hydrophilic carboxymethyl chitosan/silver (CMCS-Ag) hydrogel component in conjunction with a poly(caprolactone)/poly(caprolactone)-poly(citric acid)-co-ε-polylysine (PCL/PCL-PCE) Janus NFS. It is noteworthy that the hydrogel-Janus nanofiber scaffold not only demonstrates outstanding water absorption (202.2 %) and unidirectional biofluid transport capability but also possesses high breathability (308.663 m3/m2 h kPa), appropriate pore size (6.7-7.5 μm), excellent tensile performance (270 ± 10 %), and superior mechanical strength (26.36 ± 1.77 MPa). Moreover, in vitro experimentation has convincingly demonstrated the impeccable biocompatibility of hydrogel-Janus NFS. The inherent dual-antibacterial properties in CMCS-Ag and PCE significantly augment fibroblast proliferation and migration. In vivo studies further underscore its capability to expedite wound healing by absorption and expulsion of wound exudates, thereby fostering collagen deposition and vascularization. As such, this work potentially provides fresh insights into the design and fabrication of multifunctional biomimetic scaffolds, holding immense potential in the medical field for efficient wound healing.
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Affiliation(s)
- Xinhao Chen
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Hui Huang
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Xinru Song
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Ting Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, PR China
| | - Jiafei Yu
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Jieyan Xu
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Rui Cheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, PR China.
| | - Tingting Cui
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China; State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, PR China.
| | - Jun Li
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China.
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11
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Zhang Z, Ma J, Xu T, Wang T, Jia X, Lin J, Lv C, Cao L, Ying Y, Ji L, Wang S, Fu C. Transpiration-Inspired Fabric Dressing for Acceleration Healing of Wound Infected with Biofilm. Adv Healthc Mater 2024:e2401005. [PMID: 38663447 DOI: 10.1002/adhm.202401005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/20/2024] [Indexed: 05/04/2024]
Abstract
In chronic wound management, efficacious handling of exudate and bacterial infections stands as a paramount challenge. Here a novel biomimetic fabric, inspired by the natural transpiration mechanisms in plants, is introduced. Uniquely, the fabric combines a commercial polyethylene terephthalate (PET) fabric with asymmetrically grown 1D rutile titanium dioxide (TiO2) micro/nanostructures, emulating critical plant features: hierarchically porous networks and hydrophilic water conduction channels. This structure endows the fabric with exceptional antigravity wicking-evaporation performance, evidenced by a 780% one-way transport capability and a 0.75 g h-1 water evaporation rate, which significantly surpasses that of conventional moisture-wicking textiles. Moreover, the incorporated 1D rutile TiO2 micro/nanostructures present solar-light induced antibacterial activity, crucial for disrupting and eradicating wound biofilms. The biomimetic transpiration fabric is employed to drain exudate and eradicate biofilms in Staphylococcus aureus (S. aureus)-infected wounds, demonstrating a much faster infection eradication capability compared to clinically common ciprofloxacin irrigation. These findings illuminate the path for developing high-performance, textile-based wound dressings, offering efficient clinical platforms to combat biofilms associated with chronic wounds.
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Affiliation(s)
- Zhicheng Zhang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Junjie Ma
- College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Tao Xu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Tao Wang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Xueying Jia
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jiawei Lin
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Chang Lv
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Liang Cao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yulong Ying
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Lvlv Ji
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Sheng Wang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Caiyun Fu
- College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Department of Neurosurgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
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12
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Zhao Y, Sun W, Wu X, Gao X, Song F, Duan B, Lu A, Yang H, Huang C. Janus Membrane with Intrafibrillarly Strontium-Apatite-Mineralized Collagen for Guided Bone Regeneration. ACS NANO 2024; 18:7204-7222. [PMID: 38373291 DOI: 10.1021/acsnano.3c12403] [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: 02/21/2024]
Abstract
Commercial collagen membranes face difficulty in guided bone regeneration (GBR) due to the absence of hierarchical structural design, effective interface management, and diverse bioactivity. Herein, a Janus membrane called SrJM is developed that consists of a porous collagen face to enhance osteogenic function and a dense face to maintain barrier function. Specifically, biomimetic intrafibrillar mineralization of collagen with strontium apatite is realized by liquid precursors of amorphous strontium phosphate. Polycaprolactone methacryloyl is further integrated on one side of the collagen as a dense face, which endows SrJM with mechanical support and a prolonged lifespan. In vitro experiments demonstrate that the dense face of SrJM acts as a strong barrier against fibroblasts, while the porous face significantly promotes cell adhesion and osteogenic differentiation through activation of calcium-sensitive receptor/integrin/Wnt signaling pathways. Meanwhile, SrJM effectively enhances osteogenesis and angiogenesis by recruiting stem cells and modulating osteoimmune response, thus creating an ideal microenvironment for bone regeneration. In vivo studies verify that the bone defect region guided by SrJM is completely repaired by newly formed vascularized bone. Overall, the outstanding performance of SrJM supports its ongoing development as a multifunctional GBR membrane, and this study provides a versatile strategy of fabricating collagen-based biomaterials for hard tissue regeneration.
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Affiliation(s)
- Yaning Zhao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Wei Sun
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Xiaoyi Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Xin Gao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Fangfang Song
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Bo Duan
- Interdisciplinary Institute of NMR and Molecular Sciences, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Ang Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Hongye Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Cui Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
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13
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Sun S, Luo H, Wang Y, Xi Y, Fang K, Wu T. Artificial spinal dura mater made of gelatin microfibers and bioadhesive for preventing cerebrospinal fluid leakage. Chem Commun (Camb) 2024; 60:2353-2356. [PMID: 38323482 DOI: 10.1039/d3cc06278c] [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: 02/08/2024]
Abstract
Artificial spinal dura mater was designed by combining solution blow-spun gelatin microfibers and dopamine-capped polyurethane bioadhesive. Notably, the gelatin microfibers had a special pore structure, good water adsorption capability, and excellent burst pressure resistance. The bioadhesive layer contributed to the excellent sealing performance in the wet state. This material provides a promising alternative as an artificial spinal dura mater to prevent cerebrospinal fluid leakage.
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Affiliation(s)
- Shengdong Sun
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textiles and Clothing, Qingdao University, Qingdao, 266071, China.
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao, 266071, China
| | - Hao Luo
- Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao, 266071, China.
| | - Yuanfei Wang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textiles and Clothing, Qingdao University, Qingdao, 266071, China.
- Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, 266001, China
| | - Yongming Xi
- Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao, 266071, China.
| | - Kuanjun Fang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textiles and Clothing, Qingdao University, Qingdao, 266071, China.
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao, 266071, China
- Laboratory for Manufacturing Low Carbon and Functionalized Textiles in the Universities of Shandong Province, Qingdao, 266071, China
- State Key Laboratory for Biofibers and Eco-textiles, 308 Ningxia Road, Qingdao 266071, China
| | - Tong Wu
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textiles and Clothing, Qingdao University, Qingdao, 266071, China.
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao, 266071, China
- Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao, 266071, China.
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
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14
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Han W, Wang L, Sun J, Shi Y, Cui S, Yang D, Nie J, Ma G. Dual-Drug-Loaded Core-Shell Electrospun Nanofiber Dressing for Deep Burns. ACS APPLIED BIO MATERIALS 2024; 7:1179-1190. [PMID: 38215047 DOI: 10.1021/acsabm.3c01091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
The epidermis of a deep burn wound is entirely absent and the dermal tissue sustains significant damage, accompanied by a substantial amount of tissue exudate. Due to the excessively humid environment, the formation of a scab on the wound becomes challenging, leaving it highly vulnerable to external bacterial invasion. In this work, a core-shell dual-drug-loaded nanofiber dressing was prepared by electrospinning technology for the synergistic treatment of a deep burn. The shell layer consists of polycaprolactone and chitosan encapsulating asiaticoside, with the core layer comprising the clathrate of 2-hydroxypropyl-β-cyclodextrin and curcumin. Upon application to the wound, the dual-drug-loaded nanofiber dressing exhibited rapid release of asiaticoside, stimulating collagen deposition and promoting tissue repair. The core-shell structure and clathrate configuration ensured sustained release of curcumin, providing antibacterial and anti-inflammatory functions for the wound. The mechanical strength, broad-spectrum antibacterial ability, cell proliferation, and adhesion ability of the nanofiber dressing showed its potential as a medical dressing. This dressing also exhibited excellent wound healing promoting effects in the SD rat burn model. This paper provides a strategy for burn wound healing.
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Affiliation(s)
- Weisen Han
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Liangyu Wang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jingxian Sun
- China Tobacco Shandong Industrial Co. LTD., Jinan 250000, P. R. China
| | - Yunchang Shi
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shuai Cui
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Dongzhi Yang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Jun Nie
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Guiping Ma
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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15
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Mao J, Qian S, Zhao Q, Zhao B, Lu B, Zhang L, Mao X, Zhang Y, Cui W, Sun X. Balancing macrophage polarization via stem cell-derived apoptotic bodies for diabetic wound healing. MED 2024; 5:148-168.e8. [PMID: 38340709 DOI: 10.1016/j.medj.2024.01.006] [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: 07/24/2023] [Revised: 10/18/2023] [Accepted: 01/15/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Adipose tissue-derived stem cell-derived apoptotic bodies (ADSC-ABs) have shown great potential for immunomodulation and regeneration, particularly in diabetic wound therapy. However, their local application has been limited by unclear regulatory mechanisms, rapid clearance, and short tissue retention times. METHODS We analyzed the key role molecules and regulatory pathways of ADSC-ABs in regulating inflammatory macrophages by mRNA sequencing and microRNA (miRNA) sequencing and then verified them by gene knockdown. To prevent rapid clearance, we employed microfluidics technology to prepare methacrylate-anhydride gelatin (GelMA) microspheres (GMS) for controlled release of ABs. Finally, we evaluated the effectiveness of ADSC-AB-laden GMSs (ABs@GMSs) in a diabetic rat wound model. FINDINGS Our results demonstrated that ADSC-ABs effectively balanced macrophage inflammatory polarization through the janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway, mediated by miR-20a-5p. Furthermore, we showed that AB@GMSs had good biocompatibility, significantly delayed local clearance of ABs, and ameliorated diabetic wound inflammation and promoted vascularization, thus facilitating its healing. CONCLUSIONS Our study reveals the regulatory mechanism of ADSC-ABs in balancing macrophage inflammatory polarization and highlightsthe importance of delaying their local clearance by GMSs. These findings have important implications for the development of novel therapies for diabetic wound healing. FUNDING This research was supported by the National Key Research and Development Program of China (2020YFA0908200), National Natural Science Foundation of China (82272263, 82002053, 32000937, and 82202467), Shanghai "Rising Stars of Medical Talents" Youth Development Program (22MC1940300), Shanghai Municipal Health Commission (20204Y0354), and Shanghai Science and Technology Development Funds (22YF1421400).
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Affiliation(s)
- Jiayi Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China
| | - Shutong Qian
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China
| | - Qiuyu Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China
| | - Binfan Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China
| | - Bolun Lu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China
| | - Liucheng Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China
| | - Xiyuan Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China
| | - Yuguang Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China.
| | - Wenguo Cui
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P.R. China.
| | - Xiaoming Sun
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, P.R. China.
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16
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Shi C, Zhang Y, Wu G, Zhu Z, Zheng H, Sun X, Heng Y, Pan S, Xiu H, Zhang J, Yin Z, Yu Z, Liang B. Hyaluronic Acid-Based Reactive Oxygen Species-Responsive Multifunctional Injectable Hydrogel Platform Accelerating Diabetic Wound Healing. Adv Healthc Mater 2024; 13:e2302626. [PMID: 37943252 DOI: 10.1002/adhm.202302626] [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: 08/10/2023] [Revised: 11/02/2023] [Indexed: 11/10/2023]
Abstract
Diabetic wounds are more likely to develop into complex and severe chronic wounds. The objective of this study is to develop and assess a reactive oxygen species (ROS)-responsive multifunctional injectable hydrogel for the purpose of diabetic wound healing. A multifunctional hydrogel (HA@Cur@Ag) is successfully synthesized with dual antioxidant, antibacterial, and anti-inflammatory properties by crosslinking thiol hyaluronic acid (SH-HA) and disulfide-bonded hyperbranched polyethylene glycol (HB-PBHE) through Michael addition; while, incorporating curcumin liposomes and silver nanoparticles (AgNPs). The HA@Cur@Ag hydrogel exhibits favorable biocompatibility, degradability, and injectivity. The outcomes of in vitro and in vivo experiments demonstrate that the hydrogel can effectively be loaded with and release curcumin liposomes, as well as silver ions, thereby facilitating diabetic wound healing through multiple mechanisms, including ROS scavenging, bactericidal activity, anti-inflammatory effects, and the promotion of angiogenesis. Transcriptome sequencing reveals that the HA@Cur@Ag hydrogel effectively suppresses the activation of the tumour necrosis factor (TNF)/nuclear factor κB (NF-κB) pathway to ameliorate oxidative stress and inflammation in diabetic wounds. These findings suggest that this ROS-responsive multifunctional injectable hydrogel, which possesses the ability to precisely coordinate and integrate intricate biological and molecular processes involved in wound healing, exhibits notable potential for expediting diabetic wound healing.
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Affiliation(s)
- Chen Shi
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, P. R. China
| | - Ying Zhang
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, P. R. China
| | - Guanfu Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing, 211816, P. R. China
| | - Zhangyu Zhu
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, P. R. China
| | - Haiping Zheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing, 211816, P. R. China
| | - Ximeng Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing, 211816, P. R. China
| | - Yongyuan Heng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing, 211816, P. R. China
| | - Shaowei Pan
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, P. R. China
| | - Haonan Xiu
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, P. R. China
| | - Jing Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing, 211816, P. R. China
| | - Zhaowei Yin
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, P. R. China
| | - Ziyi Yu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu South Road, Nanjing, 211816, P. R. China
| | - Bin Liang
- Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, P. R. China
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17
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Qi L, Huang Y, Sun D, Liu Z, Jiang Y, Liu J, Wang J, Liu L, Feng G, Li Y, Zhang L. Guiding the Path to Healing: CuO 2 -Laden Nanocomposite Membrane for Diabetic Wound Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305100. [PMID: 37688343 DOI: 10.1002/smll.202305100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 08/11/2023] [Indexed: 09/10/2023]
Abstract
Diabetic chronic wounds pose significant clinical challenges due to their characteristic features of impaired extracellular matrix (ECM) function, diminished angiogenesis, chronic inflammation, and increased susceptibility to infection. To tackle these challenges and provide a comprehensive therapeutic approach for diabetic wounds, the first coaxial electrospun nanocomposite membrane is developed that incorporates multifunctional copper peroxide nanoparticles (n-CuO2 ). The membrane's nanofiber possesses a unique "core/sheath" structure consisting of n-CuO2 +PVP (Polyvinylpyrrolidone)/PCL (Polycaprolactone) composite sheath and a PCL core. When exposed to the wound's moist environment, PVP within the sheath gradually disintegrates, releasing the embedded n-CuO2 . Under a weakly acidic microenvironment (typically diabetic and infected wounds), n-CuO2 decomposes to release H2 O2 and Cu2+ ions and subsequently produce ·OH through chemodynamic reactions. This enables the anti-bacterial activity mediated by reactive oxygen species (ROS), suppressing the inflammation while enhancing angiogenesis. At the same time, the dissolution of PVP unveils unique nano-grooved surface patterns on the nanofibers, providing desirable cell-guiding function required for accelerated skin regeneration. Through meticulous material selection and design, this study pioneers the development of functional nanocomposites for multi-modal wound therapy, which holds great promise in guiding the path to healing for diabetic wounds.
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Affiliation(s)
- Lin Qi
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Yong Huang
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Dan Sun
- Advanced Composite Research Group (ACRG), School of Mechanical and Aerospace Engineering, Queens University Belfast, Belfast, BT9 5AH, UK
| | - Zheng Liu
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Yulin Jiang
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Jiangshan Liu
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Jing Wang
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Limin Liu
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Ganjun Feng
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Yubao Li
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Li Zhang
- Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute & West China Hospital, Sichuan University, Chengdu, 610065, China
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18
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Tang X, Li L, You G, Li X, Kang J. Metallic elements combine with herbal compounds upload in microneedles to promote wound healing: a review. Front Bioeng Biotechnol 2023; 11:1283771. [PMID: 38026844 PMCID: PMC10655017 DOI: 10.3389/fbioe.2023.1283771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Wound healing is a dynamic and complex restorative process, and traditional dressings reduce their therapeutic effectiveness due to the accumulation of drugs in the cuticle. As a novel drug delivery system, microneedles (MNs) can overcome the defect and deliver drugs to the deeper layers of the skin. As the core of the microneedle system, loaded drugs exert a significant influence on the therapeutic efficacy of MNs. Metallic elements and herbal compounds have been widely used in wound treatment for their ability to accelerate the healing process. Metallic elements primarily serve as antimicrobial agents and facilitate the enhancement of cell proliferation. Whereas various herbal compounds act on different targets in the inflammatory, proliferative, and remodeling phases of wound healing. The interaction between the two drugs forms nanoparticles (NPs) and metal-organic frameworks (MOFs), reducing the toxicity of the metallic elements and increasing the therapeutic effect. This article summarizes recent trends in the development of MNs made of metallic elements and herbal compounds for wound healing, describes their advantages in wound treatment, and provides a reference for the development of future MNs.
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Affiliation(s)
- Xiao Tang
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Li Li
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Gehang You
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xinyi Li
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Jian Kang
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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19
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Gürtler AL, Rades T, Heinz A. Electrospun fibers for the treatment of skin diseases. J Control Release 2023; 363:621-640. [PMID: 37820983 DOI: 10.1016/j.jconrel.2023.10.009] [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: 07/21/2023] [Revised: 09/20/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
Skin diseases are among the most common diseases in the global population and with the growth of the aging population, they represent an increasing burden to healthcare systems worldwide. Even though they are rarely life-threatening, the suffering for those affected is high due to the visibility and physical discomfort related to these diseases. Typical symptoms of skin diseases include an inflamed, swollen or itchy skin, and therefore, there is a high demand for effective therapy options. In recent years, electrospinning has attracted considerable interest in the field of drug delivery. The technique allows producing multifunctional drug-loaded fibrous patches from various natural and synthetic polymers with fiber diameters in the nano- and micrometer range, suitable for the treatment of a wide variety of skin diseases. The great potential of electrospun fiber patches not only lies in their tunable drug release properties and the possibility to entrap a variety of therapeutic compounds, but they also provide physical and mechanical protection to the impaired skin area, exhibit a high surface area, allow gas exchange, absorb exudate due to their porous structure and are cytocompatible and biodegradable. In the case of wound healing, cell adhesion is promoted due to the resemblance of the electrospun fibers to the structure of the native extracellular matrix. This review gives an overview of the potential applications of electrospun fibers in skin therapy. In addition to the treatment of bacterial, diabetic and burn wounds, focus is placed on inflammatory diseases such as atopic dermatitis and psoriasis, and therapeutic options for the treatment of skin cancer, acne vulgaris and herpes labialis are discussed. While we aim to emphasize the great potential of electrospun fiber patches for the treatment of skin diseases with this review paper, we also highlight challenges and limitations of current research in the field.
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Affiliation(s)
- Anna-Lena Gürtler
- Department of Pharmacy, LEO Foundation Center for Cutaneous Drug Delivery, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Rades
- Department of Pharmacy, LEO Foundation Center for Cutaneous Drug Delivery, University of Copenhagen, Copenhagen, Denmark
| | - Andrea Heinz
- Department of Pharmacy, LEO Foundation Center for Cutaneous Drug Delivery, University of Copenhagen, Copenhagen, Denmark.
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20
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Cai L, Zhang L, Yang J, Zhu X, Wei W, Ji M, Jiang H, Chen J. Encapsulating Antibiotic and Protein-Stabilized Nanosilver into Sandwich-Structured Electrospun Nanofibrous Scaffolds for MRSA-Infected Wound Treatment. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48978-48995. [PMID: 37877381 DOI: 10.1021/acsami.3c10994] [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: 10/26/2023]
Abstract
With the increasing prevalence of microbial infections, which results in prolonged inflammation and delayed wound healing, the development of effective and safe antimicrobial wound dressings of multiple properties remains challenging for public health. Despite their various formats, the available developed dressings with limited functions may not fulfill the diverse demands involved in the complex wound healing process. In this study, multifunctional sandwich-structured electrospinning nanofiber membranes (ENMs) were fabricated. According to the structural composition, the obtained ENMs included a hydrophilic inner layer loaded with curcumin and gentamicin sulfate, an antibacterial middle layer consisting of bovine serum albumin stabilized silver oxide nanoparticles, and a hydrophobic outer layer. The prepared sandwich-structured ENMs (SNM) exhibited good biocompatibility and killing efficacy on Escherichia coli, Staphylococcus aureus, and Methicillin-resistant S. aureus (MRSA). In particular, transcriptomic analysis revealed that SNM inactivated MRSA by inhibiting its carbohydrate and energy metabolism and reduced the bacterial resistance by downregulating mecA. In the animal experiment, SNM showed improved wound healing efficiency by reducing the bacterial load and inflammation. Moreover, 16S rDNA sequencing results indicated that SNM treatment may accelerate wound healing without observed influence on the normal skin flora. Therefore, the constructed sandwich-structured ENMs exhibited promising potential as dressings to deal with the infected wound management.
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Affiliation(s)
- Ling Cai
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Li Zhang
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jing Yang
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xinyi Zhu
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Wei Wei
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Minghui Ji
- School of Nursing, Nanjing Medical University, Nanjing 211166, China
| | - Huijun Jiang
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Jin Chen
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Province Engineering Research Center of Antibody Drug, Key Laboratory of Antibody Technique of National Health Commission, Nanjing Medical University, Nanjing 211166, China
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21
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Elkhateeb O, Badawy MEI, Tohamy HG, Abou-Ahmed H, El-Kammar M, Elkhenany H. Curcumin-infused nanostructured lipid carriers: a promising strategy for enhancing skin regeneration and combating microbial infection. BMC Vet Res 2023; 19:206. [PMID: 37845727 PMCID: PMC10577905 DOI: 10.1186/s12917-023-03774-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 10/04/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Curcumin is a biomolecule that can be extracted from the Curcuma longa that has been shown to have the potential to aid skin wound healing. It has been studied for its anti-inflammatory and antioxidant properties, which may help to reduce swelling and promote tissue repair. However, curcumin has low solubility in water, which can limit its absorption and bioavailability. Encapsulating it in lipid nanoparticles may help to increase its absorption, leading to improved bioavailability. METHODS Curcumin-loaded nanostructure lipid nanocarriers (CURC-NLCs) were prepared and characterized. Also, the phenolic, flavonoid contents, antioxidant and antimicrobial efficacy against gram-positive and gram-negative bacteria were investigated. Furthermore, in vivo rabbit animal model was used to test its regenerative capacity and wound-healing efficiency. RESULTS The CURC-NLCs significantly increased the content of phenolic and flavonoid compounds compared to curcumin, resulting in a dramatic increase in antioxidant activity. CURC-NLCs also showed a potent inhibitory effect on Gram-positive, Gram-negative, and fungi, two times higher than curcumin. CURC-NLCs showed a higher potential to fasten the wound healing of full-thickness skin injuries as it resulted in 1.15- and 1.9-fold higher wound closure at the first week of injury compared to curcumin and control, respectively (p < 0.0001). CONCLUSION These results suggest that CURC-NLCs have an excellent potential to promote skin regeneration, which could be attributed to its antioxidant and broad-spectrum antimicrobial effect.
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Affiliation(s)
- Ola Elkhateeb
- Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 22785, Egypt
| | - Mohamed E I Badawy
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, Alexandria University, El-Shatby, Alexandria, 21545, Egypt
| | - Hossam G Tohamy
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 22785, Egypt
| | - Howaida Abou-Ahmed
- Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 22785, Egypt
| | - Mahmoud El-Kammar
- Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 22785, Egypt
| | - Hoda Elkhenany
- Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 22785, Egypt.
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Lin J, He Y, He Y, Feng Y, Wang X, Yuan L, Wang Y, Chen J, Luo F, Li Z, Li J, Tan H. Janus functional electrospun polyurethane fibrous membranes for periodontal tissue regeneration. J Mater Chem B 2023; 11:9223-9236. [PMID: 37700625 DOI: 10.1039/d3tb01407j] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
The guided tissue regeneration (GTR) technique with GTR membranes is an efficient method for repairing periodontal defects. Conventional periodontal membranes act as physical barriers that resist the growth of fibroblasts, epithelial cells, and connective tissue. However, they cannot facilitate the regeneration of periodontal tissue. To address this issue, the exploitation of novel GTR membranes with bioactive functions based on therapeutic requirements is critical. Herein, we exploited a biodegradable bilayer polyurethane fibrous membrane by uniaxial electrostatic spinning to construct two sides with Janus properties by integrating the bioactive molecule dopamine (DA) and antimicrobial Gemini quaternary ammonium salt (QAS). The DA-containing side, located inside the injury, can effectively promote cell adhesion and mesenchymal stem cell growth as well as support mineralization and antioxidant properties, which are beneficial for bone regeneration. The QAS-containing side, located on the outer surface of the injury, endows antibacterial properties and limits fibroblast adhesion and growth on its surface owing to its strong hydrophilicity. An in vivo study demonstrates that the Janus polyurethane fibrous membrane can significantly promote the regeneration of periodontal defects in rats. Owing to its superior mechanical properties and biocompatibility, this polyurethane fibrous membrane has potential applications in the field of periodontal regeneration.
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Affiliation(s)
- Jingjing Lin
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yushui He
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yuanyuan He
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yuan Feng
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Xiao Wang
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Lei Yuan
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yanchao Wang
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610000, China
| | - Jie Chen
- Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu 610065, China
| | - Feng Luo
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Zhen Li
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Jiehua Li
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Hong Tan
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
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23
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Yang C, Ma X, Wu P, Shang L, Zhao Y, Zhong L. Adhesive Composite Microspheres with Dual Antibacterial Strategies for Infected Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301092. [PMID: 37069775 DOI: 10.1002/smll.202301092] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Skin damage and infection pose a severe challenge to human health. Construction of a novel versatile dressing with good anti-infection and healing-promoting abilities is greatly expected. In this paper, nature-source-based composite microspheres with dual antibacterial mechanisms and bioadhesive features by microfluidics electrospray for infected wound healing is developed. The microspheres enable sustained release of copper ions, which not only show long-term antibacterial properties, but also play important role in wound-healing-related angiogenesis. Additionally, the microspheres are coated with polydopamine via self-polymerization, which renders the microspheres adhesive to the wound surface, and further enhance the antibacterial ability through photothermal energy conversion. Based on the dual antibacterial strategies provided by copper ions and polydopamine as well as the bioadhesive property, the composite microspheres exhibit excellent anti-infection and wound healing performances in a rat wound model. These results, along with the nature-source-based composition and biocompatibility, indicate the great potential of the microspheres in clinical wound repair.
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Affiliation(s)
- Caihong Yang
- State Key Laboratory of Targeting Oncology, National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Xiao Ma
- State Key Laboratory of Targeting Oncology, National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Pan Wu
- State Key Laboratory of Targeting Oncology, National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Luoran Shang
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology, Institutes of Biomedical Sciences), Fudan University, Shanghai, 200032, China
| | - Yuanjin Zhao
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Liping Zhong
- State Key Laboratory of Targeting Oncology, National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China
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24
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Gao Z, Liu S, Li S, Shao X, Zhang P, Yao Q. Fabrication and Properties of the Multifunctional Rapid Wound Healing Panax notoginseng@Ag Electrospun Fiber Membrane. Molecules 2023; 28:molecules28072972. [PMID: 37049735 PMCID: PMC10096071 DOI: 10.3390/molecules28072972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
The Panax notoginseng@Ag core/shell electrospun fiber membrane was prepared by coaxial electrospinning combined with the UV reduction method (254 nm). The prepared Panax notoginseng@Ag core/shell nanofiber membrane has a three-dimensional structure, and its swelling ratio could reach as high as 199.87%. Traditional Chinese medicine Panax notoginseng can reduce inflammation, and the silver nanoparticles have antibacterial effects, which synergistically promote rapid wound healing. The developed Panax notoginseng@Ag core/shell nanofiber membrane can effectively inhibit the growth of the Gram-negative bacteria Escherichia coli and the Gram-positive bacteria Staphylococcus aureus. The wound healing experiments in Sprague Dawley mice showed that the wound residual area rate of the Panax notoginseng@Ag core/shell electrospun nanofiber membrane group was only 1.52% on day 9, and the wound of this group basically healed on day 12, while the wound residual area rate of the gauze treatment group (control group) was 16.3% and 10.80% on day 9 and day 12, respectively. The wound of the Panax notoginseng@Ag core/shell electrospun nanofiber membrane group healed faster, which contributed to the application of the nanofiber as Chinese medicine rapid wound healing dressings.
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Affiliation(s)
| | | | | | | | - Pingping Zhang
- Correspondence: (P.Z.); (Q.Y.); Tel.: +86-0531-82919706 (P.Z.)
| | - Qingqiang Yao
- Correspondence: (P.Z.); (Q.Y.); Tel.: +86-0531-82919706 (P.Z.)
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25
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Qian S, Mao J, Zhao Q, Zhao B, Liu Z, Lu B, Zhang L, Mao X, Zhang Y, Wang D, Sun X, Cui W. "Find-eat" strategy targeting endothelial cells via receptor functionalized apoptotic body nanovesicle. Sci Bull (Beijing) 2023; 68:826-837. [PMID: 36973107 DOI: 10.1016/j.scib.2023.03.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/05/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023]
Abstract
Endothelial cell (EC) injury plays a key role in the chronic wound process. A long-term hypoxic microenvironment hinders the vascularization of ECs, thus delaying wound healing. In this study, CX3CL1-functionalized apoptotic body nanovesicles (nABs) were constructed. The "Find-eat" strategy was implemented through a receptor-ligand combination to target ECs that highly express CX3CR1 in the hypoxic microenvironment, therefore amplifying the "Find-eat" signal and promoting angiogenesis. Apoptotic bodies (ABs) were obtained by chemically inducing apoptosis of adipose-derived stem cells (ADSCs), and then functionalized nABs containing deferoxamine (DFO-nABs) were obtained through a series of steps, including optimized hypotonic treatment, mild ultrasound, drug mixing and extrusion treatment. In vitro experiments showed that nABs had good biocompatibility and an effective "Find-eat" signal via CX3CL1/CX3CR1 to induce ECs in the hypoxic microenvironment, thereby promoting cell proliferation, cell migration and tube formation. In vivo experiments showed that nABs could promote the rapid closure of wounds, release the "Find-eat" signal to target ECs and realize the sustained release of angiogenic drugs to promote new blood vessel formation in diabetic wounds. These receptor-functionalized nABs, which can target ECs by releasing dual signals and achieve the sustained release of angiogenic drugs, may provide a novel strategy for chronic diabetic wound healing.
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Affiliation(s)
- Shutong Qian
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Jiayi Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Qiuyu Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Binfan Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Zhimo Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Bolun Lu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Liucheng Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Xiyuan Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Yuguang Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Danru Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China.
| | - Xiaoming Sun
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China.
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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26
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Weng P, Liu K, Yuan M, Huang GQ, Wu K, Yang X, Dai H, Lu W, Li D. Development of a ZIF-91-Porous-Liquid-Based Composite Hydrogel Dressing System for Diabetic Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2301012. [PMID: 36932873 DOI: 10.1002/smll.202301012] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Porous metal-organic framework (MOF) liquids with permanent porosity, good fluidity, and fine dispersion attract broad attention in catalysis, transportation, gas storage, and chemical separations. Yet, the design and synthesis of porous MOF liquids for drug delivery remain less explored. Herein, a simple and general strategy is reported to prepare ZIF-91 porous liquid (ZIF-91-PL) via surface modification and ion exchange. The cationic nature of ZIF-91-PL not only renders it antibacterial but also with high curcumin loading capacity and sustained release. More importantly, the acrylate group on the grafted side chain of ZIF-91-PL makes it feasible to crosslink with modified gelatin through light curing, and the obtained hydrogel shows a significantly improved healing effect on the wound of diabetes. This work demonstrates for the first time, a MOF-based porous liquid for drug delivery, and the further fabrication of composite hydrogel may have potential applications in biomedical science.
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Affiliation(s)
- Puxin Weng
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
| | - Kun Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Meng Yuan
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, P. R. China
| | - Guo-Quan Huang
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
| | - Kun Wu
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
| | - Xiaofan Yang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, P. R. China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Weigang Lu
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
| | - Dan Li
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
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Fabrication and Characterization of Electrospun Poly(Caprolactone)/Tannic Acid Scaffold as an Antibacterial Wound Dressing. Polymers (Basel) 2023; 15:polym15030593. [PMID: 36771894 PMCID: PMC9921954 DOI: 10.3390/polym15030593] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/17/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
Antibacterial wound dressings are promising materials to treat infected skin wounds, which greatly affect the wound-healing process. In this study, tannic acid (TA), a natural antibacterial agent, was successfully loaded by electrospinning into poly(caprolactone) (PCL) fibers in a high concentration. It is suggested that the addition of TA was beneficial for producing uniform and continuous PCL nanofibers. Hydrogen bonds existed between the PCL and TA molecules based on the analysis of FTIR spectra and DSC results. The interactions and continuous network improved the mechanical properties of the scaffolds. Meanwhile, increasing the amount of TA also enhanced the hydrophilicity and water absorption capacity of the scaffold, both of which are beneficial for accelerating wound healing. Moreover, a burst release of the TA in the initial stage and a controlled, steady release behavior over time contributed to the highly antibacterial properties of the PCL/TA scaffolds. The fabrication of the composite scaffold supplies a facile, efficient, and controllable approach to address the issue of antibacterial treatment in wound dressing.
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28
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Liu D, Zhao S, Jiang Y, Gao C, Wu Y, Liu Y. Biocompatible Dual Network Bovine Serum Albumin-Loaded Hydrogel-Accelerates Wound Healing. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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29
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Zhong D, Zhang H, Ma Z, Xin Q, Lu Y, Shi P, Qin M, Li J, Ding C. Recent advancements in wound management: Tailoring superwettable bio-interfaces. Front Bioeng Biotechnol 2022; 10:1106267. [PMID: 36568289 PMCID: PMC9767982 DOI: 10.3389/fbioe.2022.1106267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
Skin tissue suffering from severe damages fail in self-regeneration. Proper wound dressings are highly demanded to protect the wound region and accelerate the healing process. Although large efforts have been devoted, there still exist disturbing dilemmas for traditional dressings. The exquisite design of bio-interface upon superwettable materials opens new avenues and addresses the problems perfectly. However, the advancements in this area have rarely been combed. In light of this, this minireview attempts to summarize recent strategies of superwettable bio-interfaces for wound care. Concentrating on the management of biofluids (blood and exudate), we described superwettable hemostatic bio-interfaces first, and then introduced the management of exudates. Finally, the perspective of this area was given. This minireview gives a comprehensive outline for readers and is believed to provide references for the design of superwettable materials in biomedical area.
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Affiliation(s)
| | - Hongbo Zhang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Zhengxin Ma
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Qiangwei Xin
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Yongping Lu
- Guangyuan Central Hospital, Guangyuan, China,State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Ping Shi
- Guangyuan Central Hospital, Guangyuan, China,*Correspondence: Ping Shi, ; Chunmei Ding,
| | - Meng Qin
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Jianshu Li
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Chunmei Ding
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China,*Correspondence: Ping Shi, ; Chunmei Ding,
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30
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Xiao WY, Liu X, Wang W, Zhang X, Wang Y, Lan J, Fan B, Shi L, Wan X, Wang S. Self-Pumping Janus Hydrogel with Aligned Channels for Accelerating Diabetic Wound Healing. Macromol Rapid Commun 2022; 44:e2200814. [PMID: 36459585 DOI: 10.1002/marc.202200814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/25/2022] [Indexed: 12/05/2022]
Abstract
Excessive exudate secreted from diabetic wounds often results in skin overhydration, severe infections, and secondary damage upon dressing changes. However, conventional wound dressings are difficult to synchronously realize the non-maceration of wound sites and rapid exudate transport due to their random porous structure. Herein, a self-pumping Janus hydrogel with aligned channels (JHA) composed of hydrophilic poly (ethylene glycol) diacrylate (PEGDA) hydrogel layer and hydrophobic polyurethane (PU)/graphene oxide (GO)/polytetrafluoroethylene (PTFE) layer is designed to rapidly export exudate and accelerate diabetic wound healing. In the design, the ice-templating process endows the hydrophilic hydrogel layer with superior liquid transport ability and mechanical strength due to the formation of aligned channel structure. The hydrophobic layer with controlled thickness functions as an effective barrier to prevent exudate from wetting the skin surface. Experiments in diabetic rat model show that JHA can significantly promote re-epithelialization and collagen deposition, shorten the inflammation phase, and accelerate wound healing. This unique JHA dressing may have great potential for real-life usage in clinical patients.
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Affiliation(s)
- Wu-Yi 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.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xi Liu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Division and the 4th Medical Center of Chinese PLA General Hospital, Beijing, 100048, P. R. China
| | - Wenbo 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.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaobin 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.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuzhe 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.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jinze Lan
- 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.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Baoshi Fan
- Department of Otolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, 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.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.,Binzhou Institute of Technology, Binzhou, 256600, 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.,School of Future Technology, 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.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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31
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Wang X, Tang M. Bioceramic materials with ion-mediated multifunctionality for wound healing. SMART MEDICINE 2022; 1:e20220032. [PMID: 39188732 PMCID: PMC11235610 DOI: 10.1002/smmd.20220032] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 12/01/2022] [Indexed: 08/28/2024]
Abstract
Regeneration of both anatomic and functional integrity of the skin tissues after injury represents a huge challenge considering the sophisticated healing process and variability of specific wounds. In the past decades, numerous efforts have been made to construct bioceramic-based wound dressing materials with ion-mediated multifunctionality for facilitating the healing process. In this review, the state-of-the-art progress on bioceramic materials with ion-mediated bioactivity for wound healing is summarized. Followed by a brief discussion on the bioceramic materials with ion-mediated biological activities, the emerging bioceramic-based materials are highlighted for wound healing applications owing to their ion-mediated bioactivities, including anti-infection function, angiogenic activity, improved skin appendage regeneration, antitumor effect, and so on. Finally, concluding remarks and future perspectives of bioceramic-based wound dressing materials for clinical practice are briefly discussed.
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Affiliation(s)
- Xiaocheng Wang
- Department of NanoEngineeringUniversity of California San DiegoSan DiegoCaliforniaUSA
| | - Min Tang
- Department of NanoEngineeringUniversity of California San DiegoSan DiegoCaliforniaUSA
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32
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Zhang R, Wang S, Ma X, Jiang S, Chen T, Du Y, Cheng M, Liu J, Yuan Y, Ye T, Wang S. In situ gelation strategy based on ferrocene-hyaluronic acid organic copolymer biomaterial for exudate management and multi-modal wound healing. Acta Biomater 2022; 154:180-193. [PMID: 36243366 DOI: 10.1016/j.actbio.2022.09.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/13/2022] [Accepted: 09/29/2022] [Indexed: 12/14/2022]
Abstract
Exudate management remains a major concern in slow or non-healing wound management. Therefore, there is a need to devise a massive exudate-absorbing, exudate-locking, and stable extracellular matrix structure-maintaining functional wound dressing. Inspired by metal-organic frameworks, we chemically introduced sandwich ferrocene (Fc) into hyaluronic acid (HA) to fabricate an innovative metal Fc-HA organic copolymer (FHoC) as the skeleton material for in situ gelation, which was then gently compressed into a pre-hydrogel patch (FHoCP). Fc promoted the rearrangement of polymer chains to form additional microcrystalline and hydrophobic regions, which improved hydrogel transition and the exudate-locking ability. Thus, the simple composition FHoCP(5) absorbed 150 times its weight of water and maintained a firm three-dimensional network, which contributed to reducing inflammation and acted as a physical barrier against hemostasis and anti-bacterial invasion. Meanwhile, multi-modal processes, including fibroblast migration, angiogenesis, and antibacterial effects, were integrated into the gelled FHoCP(5) guided by Fe to promote wound healing. This study suggested that FHoC biomaterial could accelerate the closure of chronic wounds. We believe that this unique FHoCP(5)-based in situ gelation strategy could provide a solid drug-loaded scaffold for cell or adjunctive drug therapies, which holds great potential for the development of multifunctional biomaterials. STATEMENT OF SIGNIFICANCE: Hydrogels that absorb excessive exudates while maintaining stable ECM-like network as well as exert multimodal wound healing activities are ideal dressings for accelerating chronic wound contraction. Herein, we reported an innovative metal ferrocene-hyaluronic acid organic copolymer patch (FHoCP) and FHoCP-mediated in situ gelation strategy. Ferrocene (Fc) induced in situ gelation by promoting polymer chain rearrangement, acting as a physical barrier for hemostasis and anti-bacterial invasion, and absorbing massive exudates, resulting in reducing delayed inflammation. As the structural core, rigid Fc enhanced the stability of the hydrogel backbone, and hydrophobic Fc improved fibroblast migration. In addition, Fe2+ chemically inhibited bacteria and increased angiogenesis. These results indicated the potential of FHoCP-based hydrogel for application in clinical skin reconstruction.
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Affiliation(s)
- Rui Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Sixue Wang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaofan Ma
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Shan Jiang
- Chinese medicine (traditional Chinese medicine preparation direction), College of traditional Chinese Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Taoxi Chen
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yuhao Du
- Chinese medicine (traditional Chinese medicine preparation direction), College of traditional Chinese Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Muhua Cheng
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jun Liu
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China; Shenyang Junhong Pharmaceutical Co., Ltd., Shenyang, Liaoning, China
| | - Yue Yuan
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Tiantian Ye
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Shujun Wang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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33
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Duan W, Liu X, Zhao J, Zheng Y, Wu J. Porous Silicon Carrier Endowed with Photothermal and Therapeutic Effects for Synergistic Wound Disinfection. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48368-48383. [PMID: 36278256 DOI: 10.1021/acsami.2c12012] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Drug carriers endowed with photothermal effects will allow the drug delivery system to release drugs in a thermal-stimuli manner. In addition, the photothermal therapy (PTT) will also interplay with therapeutic drugs loaded in the carrier to exhibit synergistic bioactivity for various disease treatment. However, endowing the drug carrier with photothermal and synergistic therapeutic effects still has challenge. Herein, we demonstrate that surface modification of porous silicon (PSi) with polydopamine (PDA) could endow the classical drug carrier with a significant photothermal effect for advanced antibacterial therapy and wound disinfection. Specifically, the PSi surface interacts with a Cu2+/PDA complex via a simple and fast surface reduction-induced deposition method, forming the unique CuPDA coated PSi microcarrier (CuPPSi) without blocking the mesoporous structure. The CuPPSi carrier generates a higher near-infrared (NIR) photothermal efficiency and improved drug loading capacity owing to the abundant functional groups of PDA. Stimuli-responsive release of antibacterial Cu2+ and loaded curcumin (Cur) from CuPPSi can be realized under multiple stimuli including pH, reactive oxygen species and NIR laser irradition. Benefited from the carrier's intrinsic multimodal therapy, the CuPPSi-Cur platform exhibits amplified, broad-spectrum, and synergistic antibacterial effect, killing more than 98% for both Staphylococcus aureus and Escherichia coli at a mild PTT temperature (∼45 °C). Notably, the combined therapy promotes migration of fibroblasts with no significant cytotoxicity as revealed through cell experiments in vitro. In bacteria-infected mice model, efficient bacterial ablation and wound healing are further demonstrated with negligible side effects in vivo. Overall, the rational design of a drug carrier with photothermal and therapeutic effects provides a novel intervention for amplifing wound disinfection clinically.
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Affiliation(s)
- Wei Duan
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou310058, China
| | - Xingyue Liu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou310058, China
| | - Jingwen Zhao
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou310058, China
| | - Yongke Zheng
- Department of Intensive Care Unit, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou310006, China
| | - Jianmin Wu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou310058, China
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Kumari A, Raina N, Wahi A, Goh KW, Sharma P, Nagpal R, Jain A, Ming LC, Gupta M. Wound-Healing Effects of Curcumin and Its Nanoformulations: A Comprehensive Review. Pharmaceutics 2022; 14:2288. [PMID: 36365107 PMCID: PMC9698633 DOI: 10.3390/pharmaceutics14112288] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/28/2022] [Accepted: 10/10/2022] [Indexed: 08/13/2023] Open
Abstract
Wound healing is an intricate process of tissue repair or remodeling that occurs in response to injury. Plants and plant-derived bioactive constituents are well explored in the treatment of various types of wounds. Curcumin is a natural polyphenolic substance that has been used since ancient times in Ayurveda for its healing properties, as it reduces inflammation and acts on several healing stages. Several research studies for curcumin delivery at the wound site reported the effectiveness of curcumin in eradicating reactive oxygen species and its ability to enhance the deposition of collagen, granulation tissue formation, and finally, expedite wound contraction. Curcumin has been widely investigated for its wound healing potential but its lower solubility and rapid metabolism, in addition to its shorter plasma half-life, have limited its applications in wound healing. As nanotechnology has proven to be an effective technique to accelerate wound healing by stimulating appropriate mobility through various healing phases, curcumin-loaded nanocarriers are used for targeted delivery at the wound sites. This review highlights the potential of curcumin and its nanoformulations, such as liposomes, nanoparticles, and nano-emulsions, etc. in wound healing. This paper emphasizes the numerous biomedical applications of curcumin which collectively prepare a base for its antibiofilm and wound-healing action.
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Affiliation(s)
- Amrita Kumari
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Neha Raina
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Abhishek Wahi
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai 71800, Malaysia
| | - Pratibha Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Riya Nagpal
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Atul Jain
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Long Chiau Ming
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong BE1410, Brunei
| | - Madhu Gupta
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
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35
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Tan G, Wang L, Pan W, Chen K. Polysaccharide Electrospun Nanofibers for Wound Healing Applications. Int J Nanomedicine 2022; 17:3913-3931. [PMID: 36097445 PMCID: PMC9464040 DOI: 10.2147/ijn.s371900] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/23/2022] [Indexed: 12/26/2022] Open
Abstract
As a type of biological macromolecule, natural polysaccharides have been widely used in wound healing due to their low toxicity, good biocompatibility, degradability and reproducibility. Electrospinning is a versatile and simple technique for producing continuous nanoscale fibers from a variety of natural and synthetic polymers. The application of electrospun nanofibers as wound dressings has made great progress and they are considered one of the most effective wound dressings. This paper reviews the preparation of polysaccharide nanofibers by electrospinning and their application prospects in the field of wound healing. A variety of polysaccharide nanofibers, including chitosan, starch, alginate, and hyaluronic acid are introduced. The preparation strategy of polysaccharide electrospun nanofibers and their functions in promoting wound healing are summarized. In addition, the future prospects and challenges for the preparation of polysaccharide nanofibers by electrospinning are also discussed.
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Affiliation(s)
- Guoxin Tan
- School of Pharmacy, Hainan University, Haikou, 570228, People's Republic of China
| | - Lijie Wang
- School of Pharmacy, Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Kai Chen
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou, 571199, People's Republic of China
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36
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Hu J, Chen G, Wang G. A Trilayer Dressing with Self-Pumping and pH Monitoring Properties for Promoting Abdominal Wall Defect Repair. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162802. [PMID: 36014666 PMCID: PMC9416624 DOI: 10.3390/nano12162802] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/01/2022] [Accepted: 08/11/2022] [Indexed: 06/01/2023]
Abstract
Due to abdominal infection, excessive wound exudation, and intestinal fistula formation, the treatment of full-thickness abdominal wall defects has become a difficult challenge for clinic doctors. This clinical problem cannot be resolved with existing biomaterials. To facilitate the repair of the abdominal wall, we developed a novel wound dressing with directional biofluid transport. We used electrospinning to spin a trilayer dressing consisting of hydrolyzed poly-acrylonitrile (HPAN)/Curcumin (CUR), polyurethane (PU), and polycaprolactone (PCL). In vitro results show that the three-layer wound dressing is biocompatible, capable of directional transport of excessive wound exudation, preventing reverse penetration, and monitoring the pH of the wound. Furthermore, in vivo results show the trilayer wound dressing improves the wound microenvironment, reduces inflammatory factors, promotes angiogenesis, and accelerates abdominal wall repair. Thus, we believe that the novel trilayer electrospinning dressing could facilitate abdominal wall defect repair.
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Affiliation(s)
- Jie Hu
- Department of General Surgery, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Guopu Chen
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Gefei Wang
- Department of General Surgery, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
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37
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Novel In Situ-Cross-Linked Electrospun Gelatin/Hydroxyapatite Nonwoven Scaffolds Prove Suitable for Periodontal Tissue Engineering. Pharmaceutics 2022; 14:pharmaceutics14061286. [PMID: 35745858 PMCID: PMC9230656 DOI: 10.3390/pharmaceutics14061286] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/03/2022] [Accepted: 06/14/2022] [Indexed: 12/23/2022] Open
Abstract
Periodontal diseases affect millions of people worldwide and can result in tooth loss. Regenerative treatment options for clinical use are thus needed. We aimed at developing new nonwoven-based scaffolds for periodontal tissue engineering. Nonwovens of 16% gelatin/5% hydroxyapatite were produced by electrospinning and in situ glyoxal cross-linking. In a subset of scaffolds, additional porosity was incorporated via extractable polyethylene glycol fibers. Cell colonization and penetration by human mesenchymal stem cells (hMSCs), periodontal ligament fibroblasts (PDLFs), or cocultures of both were visualized by scanning electron microscopy and 4′,6-diamidin-2-phenylindole (DAPI) staining. Metabolic activity was assessed via Alamar Blue® staining. Cell type and differentiation were analyzed by immunocytochemical staining of Oct4, osteopontin, and periostin. The electrospun nonwovens were efficiently populated by both hMSCs and PDLFs, while scaffolds with additional porosity harbored significantly more cells. The metabolic activity was higher for cocultures of hMSCs and PDLFs, or for PDLF-seeded scaffolds. Periostin and osteopontin expression was more pronounced in cocultures of hMSCs and PDLFs, whereas Oct4 staining was limited to hMSCs. These novel in situ-cross-linked electrospun nonwoven scaffolds allow for efficient adhesion and survival of hMSCs and PDLFs. Coordinated expression of differentiation markers was observed, which rendered this platform an interesting candidate for periodontal tissue engineering.
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