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Rössler L, Nasehi R, Hansen N, Aveic S, Fischer H. Porous collagen scaffolds enable endothelial lumen formation in vitro under both static and dynamic growth conditions. J Biomed Mater Res B Appl Biomater 2024; 112:e35444. [PMID: 38923270 DOI: 10.1002/jbm.b.35444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/26/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024]
Abstract
Despite recent advances in the field of tissue engineering, the development of complex tissue-like structures in vitro is compromised by the lack of integration of a functioning vasculature. In this study, we propose a mesoscale three-dimensional (3D) in vitro vascularized connective tissue model and demonstrate its feasibility to prompt the self-assembly of endothelial cells into vessel-like structures. Moreover, we investigate the effect of perfusion on the organization of the cells. For this purpose, primary endothelial cells (HUVECs) and a cell line of human foreskin fibroblasts are cultivated in ECM-like matrices made up of freeze-dried collagen scaffolds permeated with collagen type I hydrogel. A tailored bioreactor is designed to investigate the effect of perfusion on self-organization of HUVECs. Immunofluorescent staining, two-photon microscopy, second-harmonic generation imaging, and scanning electron microscopy are applied to visualize the spatial arrangement of the cells. The analyses reveal the formation of hollow, vessel-like structures of HUVECs in hydrogel-permeated collagen scaffolds under both static and dynamic conditions. In conclusion, we demonstrate the feasibility of a 3D porous collagen scaffolding system that enables and maintains the self-organization of HUVECs into vessel-like structures independent of a dynamic flow.
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Affiliation(s)
- Lena Rössler
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Aachen, Germany
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center, Göttingen, Germany
| | - Ramin Nasehi
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Aachen, Germany
- DWI - Leibniz Institute for Interactive Materials, Aachen, Germany
| | - Nadja Hansen
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Aachen, Germany
| | - Sanja Aveic
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Aachen, Germany
| | - Horst Fischer
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Aachen, Germany
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2
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Lyu S, Liu Q, Yuen HY, Xie H, Yang Y, Yeung KWK, Tang CY, Wang S, Liu Y, Li B, He Y, Zhao X. A differential-targeting core-shell microneedle patch with coordinated and prolonged release of mangiferin and MSC-derived exosomes for scarless skin regeneration. MATERIALS HORIZONS 2024; 11:2667-2684. [PMID: 38669042 DOI: 10.1039/d3mh01910a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Microneedles for skin regeneration are conventionally restricted by uncontrollable multi-drug release, limited types of drugs, and poor wound adhesion. Here, a novel core-shell microneedle patch is developed for scarless skin repair, where the shell is composed of hydrophilic gelatin methacryloyl (GelMA) loaded with mangiferin, an anti-inflammatory small molecule, and the core is composed of hydrophobic poly (lactide-co-propylene glycol-co-lactide) dimethacrylates (PGLADMA) loaded with bioactive macromolecule and human mesenchymal stromal cell (hMSC)-derived exosomes. This material choice provides several benefits: the GelMA shell provides a swelling interface for tissue interlocking and rapid release of mangiferin at an early wound healing stage for anti-inflammation, whereas the PGLADMA core offers long-term encapsulation and release of exosomes (30% release in 3 weeks), promoting sustained angiogenesis and anti-inflammation. Our results demonstrate that the core-shell microneedle possesses anti-inflammatory properties and can induce angiogenesis both in vitro in terms of macrophage polarization and tube formation of human umbilical vein endothelial cells (HUVECs), and in vivo in terms of anti-inflammation, re-epithelization, and vessel formation. Importantly, we also observe reduced scar formation in vivo. Altogether, the degradation dynamics of our hydrophilic/hydrophobic materials enable the design of a core-shell microneedle for differential and prolonged release, promoting scarless skin regeneration, with potential for other therapies of long-term exosome release.
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Affiliation(s)
- Shang Lyu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Qi Liu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
| | - Ho-Yin Yuen
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
| | - Huizhi Xie
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Yuhe Yang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
| | - Kelvin Wai-Kwok Yeung
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Chak-Yin Tang
- Department of Industrial & Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
| | - Shuqi Wang
- Tianfu Jincheng Laboratory, City of Future Medicine, Chengdu 641400, China
- Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Yaxiong Liu
- Jihua Laboratory, Foshan, Guangdong 528000, China
| | - Bin Li
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, School of Biology & Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu 215006, China.
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu 215006, China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
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Tian J, Fu C, Li W, Li N, Yao L, Xiao J. Biomimetic tri-layered artificial skin comprising silica gel-collagen membrane-collagen porous scaffold for enhanced full-thickness wound healing. Int J Biol Macromol 2024; 266:131233. [PMID: 38554907 DOI: 10.1016/j.ijbiomac.2024.131233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/10/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Full-thickness wounds are severe cutaneous damages with destroyed self-healing function, which need efficient clinical interventions. Inspired by the hierarchical structure of natural skin, we have for the first time developed a biomimetic tri-layered artificial skin (TLAS) comprising silica gel-collagen membrane-collagen porous scaffold for enhanced full-thickness wound healing. The TLAS with the thickness of 3-7 mm displays a hierarchical nanostructure consisting of the top homogeneous silica gel film, the middle compact collagen membrane, and the bottom porous collagen scaffold, exquisitely mimicking the epidermis, basement membrane and dermis of natural skin, respectively. The 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide/N-Hydroxysuccinimide-dehydrothermal (EDC/NHS-DHT) dual-crosslinked collagen composite bilayer, with a crosslinking degree of 79.5 %, displays remarkable biocompatibility, bioactivity, and biosafety with no risk of hemolysis and pyrogen reactions. Notably, the extra collagen membrane layer provides a robust barrier to block the penetration of silica gel into the collagen porous scaffold, leading to the TLAS with enhanced biocompatibility and bioactivity. The full-thickness wound rat model studies have indicated the TLAS significantly facilitates the regeneration of full-thickness defects by accelerating re-epithelization, collagen deposition and migration of skin appendages. The highly biocompatible and bioactive tri-layered artificial skin provides an improved treatment for full-thickness wounds, which has great potential in tissue engineering.
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Affiliation(s)
- Jing Tian
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Caihong Fu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Wenhua Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Na Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Linyan Yao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; School of Life Science, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China.
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China.
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Wei Q, An Y, Zhao X, Li M, Zhang J. Three-dimensional bioprinting of tissue-engineered skin: Biomaterials, fabrication techniques, challenging difficulties, and future directions: A review. Int J Biol Macromol 2024; 266:131281. [PMID: 38641503 DOI: 10.1016/j.ijbiomac.2024.131281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/17/2024] [Accepted: 03/29/2024] [Indexed: 04/21/2024]
Abstract
As an emerging new manufacturing technology, Three-dimensional (3D) bioprinting provides the potential for the biomimetic construction of multifaceted and intricate architectures of functional integument, particularly functional biomimetic dermal structures inclusive of cutaneous appendages. Although the tissue-engineered skin with complete biological activity and physiological functions is still cannot be manufactured, it is believed that with the advances in matrix materials, molding process, and biotechnology, a new generation of physiologically active skin will be born in the future. In pursuit of furnishing readers and researchers involved in relevant research to have a systematic and comprehensive understanding of 3D printed tissue-engineered skin, this paper furnishes an exegesis on the prevailing research landscape, formidable obstacles, and forthcoming trajectories within the sphere of tissue-engineered skin, including: (1) the prevalent biomaterials (collagen, chitosan, agarose, alginate, etc.) routinely employed in tissue-engineered skin, and a discerning analysis and comparison of their respective merits, demerits, and inherent characteristics; (2) the underlying principles and distinguishing attributes of various current printing methodologies utilized in tissue-engineered skin fabrication; (3) the present research status and progression in the realm of tissue-engineered biomimetic skin; (4) meticulous scrutiny and summation of the extant research underpinning tissue-engineered skin inform the identification of prevailing challenges and issues.
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Affiliation(s)
- Qinghua Wei
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China; Innovation Center NPU Chongqing, Northwestern Polytechnical University, Chongqing 400000, China.
| | - Yalong An
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xudong Zhao
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Mingyang Li
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Juan Zhang
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
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Tang Y, Zhao R, Yi M, Ge Z, Wang D, Wang G, Deng X. Multifunctional Hydrogel Enhances Inflammatory Control, Antimicrobial Activity, and Oxygenation to Promote Healing in Infectious Wounds. Biomacromolecules 2024; 25:2423-2437. [PMID: 38457661 DOI: 10.1021/acs.biomac.3c01386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Chronic infected wounds often fail to heal through normal repair mechanisms, and the persistent response of reactive oxygen species (ROS) and inflammation is a major contributing factor to the difficulty in their healing. In this context, we developed an ROS-responsive injectable hydrogel. This hydrogel is composed of ε-polylysine grafted (EPL) with caffeic acid (CA) and hyaluronic acid (HA) grafted with phenylboronic acid (PBA). Before the gelation process, a mixture CaO2@Cur-PDA (CCP) consisting of calcium peroxide (CaO2) coated with polydopamine (PDA) and curcumin (Cur) is embedded into the hydrogel. Under the conditions of chronic refractory wound environments, the hydrogel gradually dissociates. HA mimics the function of the extracellular matrix, while the released caffeic acid-grafted ε-polylysine (CE) effectively eliminates bacteria in the wound vicinity. Additionally, released CA also clears ROS and influences macrophage polarization. Subsequently, CCP further decomposes, releasing Cur, which promotes angiogenesis. This multifunctional hydrogel accelerates the repair of diabetic skin wounds infected with Staphylococcus aureus in vivo and holds promise as a candidate dressing for the healing of chronic refractory wounds.
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Affiliation(s)
- Yunfeng Tang
- Head & Neck Oncology Ward, Cancer Center, West China Hospital, Cancer Center, Sichuan University, Chengdu 610041, China
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Renliang Zhao
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Min Yi
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zilu Ge
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dong Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guanglin Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiangtian Deng
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Peake M, Dunnill C, Ibraheem K, Smith A, Clarke DJ, Georgopoulos NT. A novel method for the establishment of autologous skin cell suspensions: characterisation of cellular sub-populations, epidermal stem cell content and wound response-enhancing biological properties. Front Bioeng Biotechnol 2024; 12:1386896. [PMID: 38646012 PMCID: PMC11026634 DOI: 10.3389/fbioe.2024.1386896] [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: 02/16/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Introduction: Autologous cell suspension (ACS)-based therapy represents a highly promising approach for burns and chronic wounds. However, existing technologies have not achieved the desired clinical success due to several limitations. To overcome practical and cost-associated obstacles of existing ACS methods, we have established a novel methodology for rapid, enzymatic disaggregation of human skin cells and their isolation using a procedure that requires no specialist laboratory instrumentation and is performed at room temperature. Methods: Cells were isolated using enzymatic disaggregation of split-thickness human skin followed by several filtration steps for isolation of cell populations, and cell viability was determined. Individual population recovery was confirmed in appropriate culture medium types, and the presence of epidermal stem cells (EpSCs) within keratinocyte sub-populations was defined by flow cytometry via detection of CD49 and CD71. Positive mediators of wound healing secreted by ACS-derived cultures established on a collagen-based wound-bed mimic were detected by proteome arrays and quantified by ELISA, and the role of such mediators was determined by cell proliferation assays. The effect of ACS-derived conditioned-medium on myofibroblasts was investigated using an in-vitro model of myofibroblast differentiation via detection of α-SMA using immunoblotting and immunofluorescence microscopy. Results: Our methodology permitted efficient recovery of keratinocytes, fibroblasts and melanocytes, which remained viable upon long-term culture. ACS-derivatives comprised sub-populations with the CD49-high/CD71-low expression profile known to demarcate EpSCs. Via secretion of mitogenic factors and wound healing-enhancing mediators, the ACS secretome accelerated keratinocyte proliferation and markedly curtailed cytodifferentiation of myofibroblasts, the latter being key mediators of fibrosis and scarring. Discussion: The systematic characterisation of the cell types within our ACS isolates provided evidence for their superior cell viability and the presence of EpSCs that are critical drivers of wound healing. We defined the biological properties of ACS-derived keratinocytes, which include ability to secrete positive mediators of wound healing as well as suppression of myofibroblast cytodifferentiation. Thus, our study provides several lines of evidence that the established ACS isolates comprise highly-viable cell populations which can physically support wound healing and possess biological properties that have the potential to enhance not only the speed but also the quality of wound healing.
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Affiliation(s)
- Michael Peake
- School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
- Centre for Dermatology Research, Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom
| | - Chris Dunnill
- School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
| | - Khalidah Ibraheem
- School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
| | - Adrian Smith
- Department of General Surgery, Calderdale and Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom
| | - Douglas J. Clarke
- School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
| | - Nikolaos T. Georgopoulos
- School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
- Biomolecular Sciences Research Centre, Industry and Innovation Research Institute, Sheffield Hallam University, Sheffield, United Kingdom
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Waldron OP, El-Mallah JC, Lochan D, Wen C, Landmesser ME, Asgardoon M, Dawes J, Horchler SN, Schlidt K, Agrawal S, Wang Y, Ravnic DJ. Ushering in the era of regenerative surgery. Minerva Surg 2024; 79:166-182. [PMID: 38088753 DOI: 10.23736/s2724-5691.23.10113-4] [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: 04/10/2024]
Abstract
Tissue loss, irrespective of etiology, often requires extensive reconstruction. In many instances, the need exceeds what current treatments and technologies modern medicine can offer. Tissue engineering has made immense strides within the past few decades due to advances in biologics, biomaterials, and manufacturing. The convergence of these three domains has created limitless potential for future surgical care. Unfortunately, there still exists a disconnect on how to best implant these 'replacement parts' and care for the patient. It is therefore vital to develop paradigms for the integration of advanced surgical and tissue engineering technologies. This paper explores the convergence between tissue engineering and reconstructive surgery. We will describe the clinical problem of tissue loss, discuss currently available solutions, address limitations, and propose processes for integrating surgery and tissue engineering, thereby ushering in the era of regenerative surgery.
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Affiliation(s)
- Olivia P Waldron
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
| | - Jessica C El-Mallah
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
- Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Dev Lochan
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
| | - Connie Wen
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, USA
| | - Mary E Landmesser
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
- Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Mohammadhossein Asgardoon
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
- Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Jazzmyn Dawes
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
| | - Summer N Horchler
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
| | - Kevin Schlidt
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
| | - Shailaja Agrawal
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA
- Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Yong Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, USA
| | - Dino J Ravnic
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, PA, USA -
- Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA
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8
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Lim NK, Jeon HB, Kim S. The transdifferentiation of human dedifferentiated fat cells into fibroblasts: An in vitro experimental pilot study. Medicine (Baltimore) 2024; 103:e37595. [PMID: 38552064 PMCID: PMC10977558 DOI: 10.1097/md.0000000000037595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 02/22/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Skin grafting is a common method of treating damaged skin; however, surgical complications may arise in patients with poor health. Currently, no effective conservative treatment is available for extensive skin loss. Mature adipocytes, which constitute a substantial portion of adipose tissue, have recently emerged as a potential source of stemness. When de-lipidated, these cells exhibit fibroblast-like characteristics and the ability to redifferentiate, offering homogeneity and research utility as "dedifferentiated fat cells." METHODS AND RESULTS We conducted an in vitro study to induce fibroblast-like traits in the adipose tissue by transdifferentiating mature adipocytes for skin regeneration. Human subcutaneous fat tissues were isolated and purified from mature adipocytes that underwent a transformation process over 14 days of cultivation. Microscopic analysis revealed lipid degradation over time, ultimately transforming cells into fibroblast-like forms. Flow cytometry was used to verify their characteristics, highlighting markers such as CD90 and CD105 (mesenchymal stem cell markers) and CD56 and CD106 (for detecting fibroblast characteristics). Administering dedifferentiated fat cells with transforming growth factor-β at the identified optimal differentiation concentration of 5 ng/mL for a span of 14 days led to heightened expression of alpha smooth muscle actin and fibronectin, as evidenced by RNA and protein analysis. Meanwhile, functional validation through cell sorting demonstrated limited fibroblast marker expression in both treated and untreated cells after transdifferentiation by transforming growth factor-β. CONCLUSION Although challenges remain in achieving more effective transformation and definitive fibroblast differentiation, our trial could pave the way for a novel skin regeneration treatment strategy.
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Affiliation(s)
- Nam Kyu Lim
- Department of Plastic and Reconstructive Surgery, Dankook University College of Medicine, Cheonan, Chungcheongnamdo, Republic of Korea
- Dankook Physician Scientist Research Center (DPSRC), Dankook University Hospital, Cheonan, Chungcheongnamdo, Republic of Korea
| | - Hong Bae Jeon
- Department of Plastic and Reconstructive Surgery, Dankook University College of Medicine, Cheonan, Chungcheongnamdo, Republic of Korea
- Dankook Physician Scientist Research Center (DPSRC), Dankook University Hospital, Cheonan, Chungcheongnamdo, Republic of Korea
| | - Sungyeon Kim
- Department of Plastic and Reconstructive Surgery, Dankook University College of Medicine, Cheonan, Chungcheongnamdo, Republic of Korea
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Ansari M, Darvishi A. A review of the current state of natural biomaterials in wound healing applications. Front Bioeng Biotechnol 2024; 12:1309541. [PMID: 38600945 PMCID: PMC11004490 DOI: 10.3389/fbioe.2024.1309541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 03/18/2024] [Indexed: 04/12/2024] Open
Abstract
Skin, the largest biological organ, consists of three main parts: the epidermis, dermis, and subcutaneous tissue. Wounds are abnormal wounds in various forms, such as lacerations, burns, chronic wounds, diabetic wounds, acute wounds, and fractures. The wound healing process is dynamic, complex, and lengthy in four stages involving cells, macrophages, and growth factors. Wound dressing refers to a substance that covers the surface of a wound to prevent infection and secondary damage. Biomaterials applied in wound management have advanced significantly. Natural biomaterials are increasingly used due to their advantages including biomimicry of ECM, convenient accessibility, and involvement in native wound healing. However, there are still limitations such as low mechanical properties and expensive extraction methods. Therefore, their combination with synthetic biomaterials and/or adding bioactive agents has become an option for researchers in this field. In the present study, the stages of natural wound healing and the effect of biomaterials on its direction, type, and level will be investigated. Then, different types of polysaccharides and proteins were selected as desirable natural biomaterials, polymers as synthetic biomaterials with variable and suitable properties, and bioactive agents as effective additives. In the following, the structure of selected biomaterials, their extraction and production methods, their participation in wound healing, and quality control techniques of biomaterials-based wound dressings will be discussed.
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Affiliation(s)
- Mojtaba Ansari
- Department of Biomedical Engineering, Meybod University, Meybod, Iran
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10
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Kondej K, Zawrzykraj M, Czerwiec K, Deptuła M, Tymińska A, Pikuła M. Bioengineering Skin Substitutes for Wound Management-Perspectives and Challenges. Int J Mol Sci 2024; 25:3702. [PMID: 38612513 PMCID: PMC11011330 DOI: 10.3390/ijms25073702] [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: 03/02/2024] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
Non-healing wounds and skin losses constitute significant challenges for modern medicine and pharmacology. Conventional methods of wound treatment are effective in basic healthcare; however, they are insufficient in managing chronic wound and large skin defects, so novel, alternative methods of therapy are sought. Among the potentially innovative procedures, the use of skin substitutes may be a promising therapeutic method. Skin substitutes are a heterogeneous group of materials that are used to heal and close wounds and temporarily or permanently fulfill the functions of the skin. Classification can be based on the structure or type (biological and synthetic). Simple constructs (class I) have been widely researched over the years, and can be used in burns and ulcers. More complex substitutes (class II and III) are still studied, but these may be utilized in patients with deep skin defects. In addition, 3D bioprinting is a rapidly developing method used to create advanced skin constructs and their appendages. The aforementioned therapies represent an opportunity for treating patients with diabetic foot ulcers or deep skin burns. Despite these significant developments, further clinical trials are needed to allow the use skin substitutes in the personalized treatment of chronic wounds.
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Affiliation(s)
- Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdansk, 80-214 Gdansk, Poland;
| | - Małgorzata Zawrzykraj
- Department of Clinical Anatomy, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.Z.); (K.C.)
| | - Katarzyna Czerwiec
- Department of Clinical Anatomy, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.Z.); (K.C.)
| | - Milena Deptuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.D.); (A.T.)
| | - Agata Tymińska
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.D.); (A.T.)
| | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.D.); (A.T.)
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11
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Jiang M, Chen M, Liu N. Interactions between Schwann cell and extracellular matrix in peripheral nerve regeneration. Front Neurol 2024; 15:1372168. [PMID: 38651098 PMCID: PMC11034552 DOI: 10.3389/fneur.2024.1372168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 02/27/2024] [Indexed: 04/25/2024] Open
Abstract
Peripheral nerve injuries, caused by various reasons, often lead to severe sensory, motor, and autonomic dysfunction or permanent disability, posing a challenging problem in regenerative medicine. Autologous nerve transplantation has been the gold standard in traditional treatments but faces numerous limitations and risk factors, such as donor area denervation, increased surgical complications, and diameter or nerve bundle mismatches. The extracellular matrix (ECM) is a complex molecular network synthesized and released into the extracellular space by cells residing in tissues or organs. Its main components include collagen, proteoglycans/glycosaminoglycans, elastin, laminin, fibronectin, etc., providing structural and biochemical support to surrounding cells, crucial for cell survival and growth. Schwann cells, as the primary glial cells in the peripheral nervous system, play various important roles. Schwann cell transplantation is considered the gold standard in cell therapy for peripheral nerve injuries, making ECM derived from Schwann cells one of the most suitable biomaterials for peripheral nerve repair. To better understand the mechanisms of Schwann cells and the ECM in peripheral nerve regeneration and their optimal application, this review provides an overview of their roles in peripheral nerve regeneration.
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Affiliation(s)
- Maorong Jiang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Muyang Chen
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Nana Liu
- School of Pediatrics, Nanjing Medical University, Nanjing, China
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12
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Tai TY, Lin KJ, Chang HY, Wu YC, Huang CU, Lin XY, Tsai FC, Tsai CS, Chen YH, Wang FY, Chang SC. Early identification of delayed wound healing in complex diabetic foot ulcers treated with a dermal regeneration template: a novel clinical target and its risk factors. Int J Surg 2024; 110:943-955. [PMID: 38085826 PMCID: PMC10871583 DOI: 10.1097/js9.0000000000000898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/02/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND The dermal regeneration template (DRT), a tissue-engineered skin substitute composing a permanent dermal matrix and an upper temporary silicone layer that serves as the epidermis, has demonstrated efficacy in treating uncomplicated diabetic foot ulcers (DFUs). Our institution has obtained good outcomes with DRT in patients with more complicated DFUs. Because of its chronicity, the authors are working to identify a clinical target that anticipates delayed healing early in the treatment in addition to determining the risk factors linked to this endpoint to increase prevention. MATERIALS AND METHODS This retrospective single-center study analyzed patients with DFUs who underwent wound reconstruction using DRT between 2016 and 2021. The patients were categorized into poor or good graft-take groups based on their DRT status on the 21st day after the application. Their relationship with complete healing (CH) rate at day 180 was analyzed. Variables were collected for risk factors for poor graft take at day 21. Independent risk factors were identified after multivariable analysis. The causes of poor graft take were also reported. RESULTS This study examined 80 patients (38 and 42 patients in the poor and good graft-take groups, respectively). On day 180, the CH rate was 86.3% overall, but the poor graft-take group had a significantly lower CH rate (76.3 vs. 95.2%, P =0.021) than the good graft-take group. Our analysis identified four independent risk factors: transcutaneous oxygen pressure less than 30 mmHg (odds ratio, 154.14), off-loading device usage (0.03), diabetic neuropathy (6.51), and toe wound (0.20). The most frequent cause of poor graft take was infection (44.7%), followed by vascular compromise (21.1%) and hematoma (15.8%). CONCLUSION Our study introduces the novel concept of poor graft take at day 21 associated with delayed wound healing. Four independent risk factors were identified, which allows physicians to arrange interventions to mitigate their effects or select patients more precisely. DRT represents a viable alternative to address DFUs, even in complicated wounds. A subsequent split-thickness skin graft is not always necessary to achieve CH.
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Affiliation(s)
- Ting-Yu Tai
- Division of Cardiovascular Surgery, Heart Center, Cheng Hsin General Hospital
| | - Kuan-Jie Lin
- Division of Cardiovascular Surgery, Department of Surgery, Shuang-Ho Hospital
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University
| | - Hao-Yun Chang
- Department of Medical Education, Division of General Medicine, Far Eastern Memorial Hospital
| | - Yi-Chun Wu
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ching-Uen Huang
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital
| | - Xin-Yi Lin
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital
| | - Feng-Chou Tsai
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital
| | - Ching-Sung Tsai
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital
| | - Yu-Han Chen
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital
| | | | - Shun-Cheng Chang
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University
- Division of Plastic Surgery, Integrated Burn and Wound Care Center, Department of Surgery, Shuang-Ho Hospital
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Kohoolat G, Alizadeh P, Motesadi Zarandi F, Rezaeipour Y. A ternary composite hydrogel based on sodium alginate, carboxymethyl cellulose and copper-doped 58S bioactive glass promotes cutaneous wound healing in vitro and in vivo. Int J Biol Macromol 2024; 259:129260. [PMID: 38199544 DOI: 10.1016/j.ijbiomac.2024.129260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/26/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Hydrogels offer a novel approach to wound repair. In this study, we synthesized a ternary composite using sodium alginate (SA), carboxymethyl cellulose (CMC) and copper-doped 58S bioactive glass (BG). According to our mechanical testing results, the composite made of 7 wt% CMC and 7 wt% BG (SA-7CMC-7BG) showed optimal properties. In addition, our in vitro studies revealed the biocompatibility and bioactivity of SA-7CMC-7BG, with a negative zeta potential of -31.7 mV. Scanning electron microscope (SEM) images showed 273-μm-diameter pores, cell adhesion, and anchoring. The SA-7CMC-7BG closed 90.4 % of the mechanical scratch after 2 days. An in vivo wound model using Wistar rats showed that SA-7CMC-7BG promoted wound healing, with 85.57 % of the wounds healed after 14 days. Treatment with the SA-7CMC-7BG hydrogel caused a 1.6-, 65-, and 1.87-fold increase in transforming growth factor beta (TGF-β), Col I, and vascular endothelial growth factor (VEGF) expression, respectively that prevents fibrosis and promotes angiogenesis. Furthermore, interleukin 1β (IL-1β) expression was downregulated by 1.61-fold, indicating an anti-inflammatory effect of SA-7CMC-7BG. We also observed an increase in epidermal thickness, the number of fibroblast cells, and collagen deposition, which represent complementary pathology results confirming the effectiveness of the SA-7CMC-7BG hydrogel in cutaneous wound healing.
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Affiliation(s)
- Ghazaleh Kohoolat
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Parvin Alizadeh
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran.
| | - Fatemeh Motesadi Zarandi
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Yashar Rezaeipour
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
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14
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Zhang X, Shi W, Wang X, Zou Y, Xiang W, Lu N. Evaluation of the Composite Skin Patch Loaded with Bioactive Functional Factors Derived from Multicellular Spheres of EMSCs for Regeneration of Full-thickness Skin Defects in Rats. Curr Stem Cell Res Ther 2024; 19:1142-1152. [PMID: 37694794 DOI: 10.2174/1574888x19666230908142426] [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: 03/29/2023] [Revised: 07/24/2023] [Accepted: 08/03/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND Transplantation of stem cells/scaffold is an efficient approach for treating tissue injury including full-thickness skin defects. However, the application of stem cells is limited by preservation issues, ethical restriction, low viability, and immune rejection in vivo. The mesenchymal stem cell conditioned medium is abundant in bioactive functional factors, making it a viable alternative to living cells in regeneration medicine. METHODS Nasal mucosa-derived ecto-mesenchymal stem cells (EMSCs) of rats were identified and grown in suspension sphere-forming 3D culture. The EMSCs-conditioned medium (EMSCs-CM) was collected, lyophilized, and analyzed for its bioactive components. Next, fibrinogen and chitosan were further mixed and cross-linked with the lyophilized powder to obtain functional skin patches. Their capacity to gradually release bioactive substances and biocompatibility with epidermal cells were assessed in vitro. Finally, a full-thickness skin defect model was established to evaluate the therapeutic efficacy of the skin patch. RESULTS The EMSCs-CM contains abundant bioactive proteins including VEGF, KGF, EGF, bFGF, SHH, IL-10, and fibronectin. The bioactive functional composite skin patch containing EMSCs-CM lyophilized powder showed the network-like microstructure could continuously release the bioactive proteins, and possessed ideal biocompatibility with rat epidermal cells in vitro. Transplantation of the composite skin patch could expedite the healing of the full-thickness skin defect by promoting endogenous epidermal stem cell proliferation and skin appendage regeneration in rats. CONCLUSION In summary, the bioactive functional composite skin patch containing EMSCs-CM lyophilized powder can effectively accelerate skin repair, which has promising application prospects in the treatment of skin defects.
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Affiliation(s)
- Xuan Zhang
- Science Center for Future Foods, Jiangnan University, Wuxi, China
| | - Wentao Shi
- Science Center for Future Foods, Jiangnan University, Wuxi, China
| | - Xun Wang
- Department of Pulmonary and Critical Care Medicine, The Affiliated Central Hospital of Jiangnan University, Wuxi, China
| | - Yin Zou
- The Affiliated Children Hospital of Jiangnan University, Wuxi, China
| | - Wen Xiang
- School of Medicine, Nankai University, Tianjin, China
| | - Naiyan Lu
- Science Center for Future Foods, Jiangnan University, Wuxi, China
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15
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Keshavarz R, Olsen S, Almeida B. Using biomaterials to improve mesenchymal stem cell therapies for chronic, nonhealing wounds. Bioeng Transl Med 2024; 9:e10598. [PMID: 38193114 PMCID: PMC10771568 DOI: 10.1002/btm2.10598] [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: 05/18/2023] [Revised: 08/15/2023] [Accepted: 08/22/2023] [Indexed: 01/10/2024] Open
Abstract
Historically, treatment of chronic, nonhealing wounds has focused on managing symptoms using biomaterial-based wound dressings, which do not adequately address the underlying clinical issue. Mesenchymal stem cells (MSCs) are a promising cell-based therapy for the treatment of chronic, nonhealing wounds, yet inherent cellular heterogeneity and susceptibility to death during injection limit their clinical use. Recently, researchers have begun to explore the synergistic effects of combined MSC-biomaterial therapies, where the biomaterial serves as a scaffold to protect the MSCs and provides physiologically relevant physicochemical cues that can direct MSC immunomodulatory behavior. In this review, we highlight recent progress in this field with a focus on the most commonly used biomaterials, classified based on their source, including natural biomaterials, synthetic biomaterials, and the combination of natural and synthetic biomaterials. We also discuss current challenges regarding the clinical translation of these therapies, as well as a perspective on the future outlook of the field.
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Affiliation(s)
- Romina Keshavarz
- Department of Chemical and Biomolecular EngineeringClarkson UniversityPotsdamNew YorkUSA
| | - Sara Olsen
- Department of Chemical and Biomolecular EngineeringClarkson UniversityPotsdamNew YorkUSA
| | - Bethany Almeida
- Department of Chemical and Biomolecular EngineeringClarkson UniversityPotsdamNew YorkUSA
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16
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Wang M, Zhang L, Hao H, Yan M, Zhu Z. Applications of Engineered Skin Tissue for Cosmetic Component and Toxicology Detection. Cell Transplant 2024; 33:9636897241235464. [PMID: 38491929 PMCID: PMC10944590 DOI: 10.1177/09636897241235464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/30/2024] [Accepted: 02/10/2024] [Indexed: 03/18/2024] Open
Abstract
The scale of the cosmetic market is increasing every day. There are many safety risks to cosmetics, but they benefit people at the same time. The skin can become red, swollen, itchy, chronically toxic, and senescent due to the misuse of cosmetics, triggering skin injuries, with contact dermatitis being the most common. Therefore, there is an urgent need for a system that can scientifically and rationally detect the composition and perform a toxicological assessment of cosmetic products. Traditional detection methods rely on instrumentation and method selection, which are less sensitive and more complex to perform. Engineered skin tissue has emerged with the advent of tissue engineering technology as an emerging bioengineering technology. The ideal engineered skin tissue is the basis for building good in vitro structures and physiological functions in this field. This review introduces the existing cosmetic testing and toxicological evaluation methods, the current development status, and the types and characteristics of engineered skin tissue. The application of engineered skin tissue in the field of cosmetic composition detection and toxicological evaluation, as well as the different types of tissue engineering scaffold materials and three-dimensional (3D) organoid preparation approaches, is highlighted in this review to provide methods and ideas for constructing the next engineered skin tissue for cosmetic raw material component analysis and toxicological evaluation.
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Affiliation(s)
- Min Wang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
| | - Linfeng Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
| | - Haojie Hao
- The First Medical Center, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Muyang Yan
- The First Medical Center, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Ziying Zhu
- The First Medical Center, Chinese People’s Liberation Army General Hospital, Beijing, China
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17
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Andleeb A, Khan H, Andleeb A, Khan M, Tariq M. Advances in Chronic Wound Management: From Conventional Treatment to Novel Therapies and Biological Dressings. Crit Rev Biomed Eng 2024; 52:29-62. [PMID: 38884212 DOI: 10.1615/critrevbiomedeng.2024053066] [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: 06/18/2024]
Abstract
Chronic wounds can be classified as diabetic foot ulcers, pressure ulcers, or venous leg ulcers. Chronic wound management has become a threat to clinicians and constitutes a major healthcare burden. The healing process of chronic wounds requires many factors to work in concert to achieve optimal healing. Various treatment options, ranging from hypoxia to infection, have evolved considerably to address the challenges associated with chronic wound healing. The conventional and accelerating treatments for chronic wounds still represent an unmet medical need due to the complex pathophysiology of the chronic wound microenvironment. In clinical settings, traditional chronic wound care practices rely on nonspecific topical treatment, which can reduce pain and alleviate disease progression with varying levels of success but fail to completely cure the wounds. Conventional wound dressings, such as hydrocolloids, gauze, foams, and films, have also shown limited success for the treatment of chronic wounds and only act as a physical barrier and absorb wound exudates. Emerging advances in treatment approaches, including novel therapies (stem cells, microRNAs, and nanocarrier-based delivery systems) and multifunctional biological dressings, have been reported for chronic wound repair. This review summarizes the challenges offered by chronic wounds and discusses recent advancements in chronic wound treatment.
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Affiliation(s)
- Anisa Andleeb
- Department of Biotechnology, Faculty of Natural and Applied Sciences, Mirpur University of Science and Technology, Mirpur 10250, AJK, Pakistan
| | - Hamza Khan
- National Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Aneeta Andleeb
- Centre for Applied Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Maria Khan
- Centre for Biotechnology and Microbiology, University of Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Tariq
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur, Azad Jammu and Kashmir, Pakistan
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18
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Westphal JA, Bryan AE, Krutko M, Esfandiari L, Schutte SC, Harris GM. Innervation of an Ultrasound-Mediated PVDF-TrFE Scaffold for Skin-Tissue Engineering. Biomimetics (Basel) 2023; 9:2. [PMID: 38275450 PMCID: PMC11154284 DOI: 10.3390/biomimetics9010002] [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: 11/08/2023] [Revised: 12/05/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
In this work, electrospun polyvinylidene-trifluoroethylene (PVDF-TrFE) was utilized for its biocompatibility, mechanics, and piezoelectric properties to promote Schwann cell (SC) elongation and sensory neuron (SN) extension. PVDF-TrFE electrospun scaffolds were characterized over a variety of electrospinning parameters (1, 2, and 3 h aligned and unaligned electrospun fibers) to determine ideal thickness, porosity, and tensile strength for use as an engineered skin tissue. PVDF-TrFE was electrically activated through mechanical deformation using low-intensity pulsed ultrasound (LIPUS) waves as a non-invasive means to trigger piezoelectric properties of the scaffold and deliver electric potential to cells. Using this therapeutic modality, neurite integration in tissue-engineered skin substitutes (TESSs) was quantified including neurite alignment, elongation, and vertical perforation into PVDF-TrFE scaffolds. Results show LIPUS stimulation promoted cell alignment on aligned scaffolds. Further, stimulation significantly increased SC elongation and SN extension separately and in coculture on aligned scaffolds but significantly decreased elongation and extension on unaligned scaffolds. This was also seen in cell perforation depth analysis into scaffolds which indicated LIPUS enhanced perforation of SCs, SNs, and cocultures on scaffolds. Taken together, this work demonstrates the immense potential for non-invasive electric stimulation of an in vitro tissue-engineered-skin model.
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Affiliation(s)
- Jennifer A. Westphal
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA; (J.A.W.); (M.K.); (L.E.); (S.C.S.)
| | - Andrew E. Bryan
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA;
| | - Maksym Krutko
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA; (J.A.W.); (M.K.); (L.E.); (S.C.S.)
| | - Leyla Esfandiari
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA; (J.A.W.); (M.K.); (L.E.); (S.C.S.)
- Department of Environmental and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
- Department of Electrical and Computer Science, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Stacey C. Schutte
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA; (J.A.W.); (M.K.); (L.E.); (S.C.S.)
| | - Greg M. Harris
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA; (J.A.W.); (M.K.); (L.E.); (S.C.S.)
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA;
- Neuroscience Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45221, USA
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Las Heras K, Garcia-Orue I, Aguirre JJ, de la Caba K, Guerrero P, Igartua M, Santos-Vizcaino E, Hernandez RM. Soy protein/β-chitin sponge-like scaffolds laden with human mesenchymal stromal cells from hair follicle or adipose tissue promote diabetic chronic wound healing. BIOMATERIALS ADVANCES 2023; 155:213682. [PMID: 37925826 DOI: 10.1016/j.bioadv.2023.213682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/10/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
Chronic wounds are a worldwide problem that affect >40 million people every year. The constant inflammatory status accompanied by prolonged bacterial infections reduce patient's quality of life and life expectancy drastically. An important cell type involved in the wound healing process are mesenchymal stromal cells (MSCs) due to their long-term demonstrated immunomodulatory and pro-regenerative capacity. Thus, in this work, we leveraged and compared the therapeutic properties of MSCs derived from both adipose tissue and hair follicle, which we combined with sponge-like scaffolds (SLS) made of valorized soy protein and β-chitin. In this regard, the combination of these cells with biomaterials permitted us to obtain a multifunctional therapy that allowed high cell retention and growing rates while maintaining adequate cell-viability for several days. Furthermore, this combined therapy demonstrated to increase fibroblasts and keratinocytes migration, promote human umbilical vein endothelial cells angiogenesis and protect fibroblasts from highly proteolytic environments. Finally, this combined therapy demonstrated to be highly effective in reducing wound healing time in vivo with only one treatment change during all the experimental procedure, also promoting a more functional and native-like healed skin.
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Affiliation(s)
- Kevin Las Heras
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy (UPV/EHU), Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Itxaso Garcia-Orue
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy (UPV/EHU), Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Jose Javier Aguirre
- Bioaraba Health Research Institute, Osakidetza Basque Health Service, Araba University Hospital, Pathological Anatomy Service, Vitoria-Gasteiz, Spain
| | - Koro de la Caba
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Pedro Guerrero
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Proteinmat Materials SL, Avenida de Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Manoli Igartua
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy (UPV/EHU), Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Edorta Santos-Vizcaino
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy (UPV/EHU), Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain.
| | - Rosa Maria Hernandez
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy (UPV/EHU), Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain.
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Radzikowska-Büchner E, Łopuszyńska I, Flieger W, Tobiasz M, Maciejewski R, Flieger J. An Overview of Recent Developments in the Management of Burn Injuries. Int J Mol Sci 2023; 24:16357. [PMID: 38003548 PMCID: PMC10671630 DOI: 10.3390/ijms242216357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
According to the World Health Organization (WHO), around 11 million people suffer from burns every year, and 180,000 die from them. A burn is a condition in which heat, chemical substances, an electrical current or other factors cause tissue damage. Burns mainly affect the skin, but can also affect deeper tissues such as bones or muscles. When burned, the skin loses its main functions, such as protection from the external environment, pathogens, evaporation and heat loss. Depending on the stage of the burn, the patient's condition and the cause of the burn, we need to choose the most appropriate treatment. Personalization and multidisciplinary collaboration are key to the successful management of burn patients. In this comprehensive review, we have collected and discussed the available treatment options, focusing on recent advances in topical treatments, wound cleansing, dressings, skin grafting, nutrition, pain and scar tissue management.
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Affiliation(s)
- Elżbieta Radzikowska-Büchner
- Department of Plastic, Reconstructive and Maxillary Surgery, National Medical Institute of the Ministry of the Interior and Administration, Wołoska 137 Street, 02-507 Warszawa, Poland;
| | - Inga Łopuszyńska
- Department of Plastic, Reconstructive and Maxillary Surgery, National Medical Institute of the Ministry of the Interior and Administration, Wołoska 137 Street, 02-507 Warszawa, Poland;
| | - Wojciech Flieger
- Department of Human Anatomy, Medical University of Lublin, Jaczewskiego 4 Street, 20-090 Lublin, Poland;
| | - Michał Tobiasz
- Department of Plastic Surgery, Reconstructive Surgery and Burn Treatment, Medical University of Lublin, Krasnystawska 52 Street, 21-010 Łęczna, Poland;
| | - Ryszard Maciejewski
- Faculty of Medicine, University of Warsaw, Żwirki i Wigury 101 Street, 02-089 Warszawa, Poland;
| | - Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4A Street, 20-093 Lublin, Poland
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Wang D, Xing J, Zhang Y, Guo Z, Deng S, Guan Z, He B, Ma R, Leng X, Dong K, Dong Y. Metal-Phenolic Networks for Chronic Wounds Therapy. Int J Nanomedicine 2023; 18:6425-6448. [PMID: 38026522 PMCID: PMC10640828 DOI: 10.2147/ijn.s434535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Chronic wounds are recalcitrant complications of a variety of diseases, with pathologic features including bacterial infection, persistent inflammation, and proliferation of reactive oxygen species (ROS) levels in the wound microenvironment. Currently, the use of antimicrobial drugs, debridement, hyperbaric oxygen therapy, and other methods in clinical for chronic wound treatment is prone to problems such as bacterial resistance, wound expansion, and even exacerbation. In recent years, researchers have proposed many novel materials for the treatment of chronic wounds targeting the disease characteristics, among which metal-phenolic networks (MPNs) are supramolecular network structures that utilize multivalent metal ions and natural polyphenols complexed through ligand bonds. They have a flexible and versatile combination of structural forms and a variety of formations (nanoparticles, coatings, hydrogels, etc.) that can be constructed. Functionally, MPNs combine the chemocatalytic and bactericidal properties of metal ions as well as the anti-inflammatory and antioxidant properties of polyphenol compounds. Together with the excellent properties of rapid synthesis and negligible cytotoxicity, MPNs have attracted researchers' great attention in biomedical fields such as anti-tumor, anti-bacterial, and anti-inflammatory. This paper will focus on the composition of MPNs, the mechanisms of MPNs for the treatment of chronic wounds, and the application of MPNs in novel chronic wound therapies.
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Affiliation(s)
- Danyang Wang
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Jianfeng Xing
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ying Zhang
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ziyang Guo
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Shujing Deng
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Zelin Guan
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Binyang He
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ruirui Ma
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Xue Leng
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Kai Dong
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Yalin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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22
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Shahriari-Khalaji M, Sattar M, Cao R, Zhu M. Angiogenesis, hemocompatibility and bactericidal effect of bioactive natural polymer-based bilayer adhesive skin substitute for infected burned wound healing. Bioact Mater 2023; 29:177-195. [PMID: 37520303 PMCID: PMC10384635 DOI: 10.1016/j.bioactmat.2023.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Thermal wounds are complex and lethal with irregular shapes, risk of infection, slow healing, and large surface area. The mortality rate in patients with infected burns is twice that of non-infected burns. Developing multifunctional skin substitutes to augment the healing rate of infected burns is vital. Herein, we 3D printed a hydrogel scaffold comprising carboxymethyl chitosan (CMCs) and oxidized alginate grafted catechol (O-AlgCat) on a hydrophobic electrospun layer, forming a bilayer skin substitute (BSS). The functional layer (FL) was fabricated by physiochemical crosslinking to ensure favorable biodegradability. The gallium-containing hydrophobic electrospun layer or backing layer (BL) could mimic the epidermis of skin, avoiding fluid penetration and offering antibacterial activity. 3D printed FL contains catechol, gallium, and biologically active platelet rich fibrin (PRF) to adhere to both tissue and BL, show antibacterial activity, encourage angiogenesis, cell growth, and migration. The fabricated bioactive BSS exhibited noticeable adhesive properties (P ≤ 0.05), significant antibacterial activity (P ≤ 0.05), faster clot formation, and the potential to promote proliferation (P ≤ 0.05) and migration (P ≤ 0.05) of L929 cells. Furthermore, the angiogenesis was significantly higher (P ≤ 0.05) when evaluated in vivo and in ovo. The BSS-covered wounds healed faster due to low inflammation and high collagen density. Based on the obtained results, the fabricated bioactive BSS could be an effective treatment for infected burn wounds.
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Affiliation(s)
- Mina Shahriari-Khalaji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Mamoona Sattar
- Research Group of Microbiological Engineering and Medical Materials, College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, China
| | - Ran Cao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
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Ijaola AO, Subeshan B, Pham A, Uddin MN, Yang SY, Asmatulu E. Fabrication, Characterization, and In Vitro Cytotoxicity Assessment of Tri-Layered Multifunctional Scaffold for Effective Chronic Wound Healing. Bioengineering (Basel) 2023; 10:1148. [PMID: 37892878 PMCID: PMC10604823 DOI: 10.3390/bioengineering10101148] [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: 08/18/2023] [Revised: 09/22/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023] Open
Abstract
Chronic wounds have been a global health risk that demands intensive exploration. A tri-layered biomaterial scaffold has been developed for skin wounds. The top layer of the scaffold is superhydrophobic, and the bottom layer is hydrophilic, both of which were electrospun using recycled expanded polystyrene (EPS) and monofilament fishing line (MFL), respectively. The intermediate layer of the scaffold comprised hydrogel by cross-linking chitosan (CS) with polyethylene glycol. The surface morphology, surface chemistry, thermal degradation, and wettability characteristics of each layer of the scaffold were examined. Also, the antibacterial activity and in vitro cytotoxicity study on the combined tri-layered scaffold were assessed against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Data revealed exceptional water repellency of the heat-treated electrospun top superhydrophobic layer (TSL) with a high-water contact angle (WCA) of 172.44°. A TSL with 15 wt% of micro-/nano-inclusions had the best thermal stability above 400 °C. The bottom hydrophilic layer (BHL) displayed a WCA of 9.91°. Therapeutically, the synergistic effect of the combined tri-layered scaffold significantly inhibited bacteria growth by 70.5% for E. coli and 68.6% for S. aureus. Furthermore, cell viability is enhanced when PEG is included as part of the intermediate CS hydrogel layer (ICHL) composition.
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Affiliation(s)
- Ahmed Olanrewaju Ijaola
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount St., Wichita, KS 67260, USA; (A.O.I.); (B.S.); (A.P.)
- Department of Biological Sciences, Wichita State University, 1845 Fairmount St., Wichita, KS 67260, USA
| | - Balakrishnan Subeshan
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount St., Wichita, KS 67260, USA; (A.O.I.); (B.S.); (A.P.)
| | - Anh Pham
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount St., Wichita, KS 67260, USA; (A.O.I.); (B.S.); (A.P.)
| | - Md. Nizam Uddin
- Department of Engineering and Physics, Texas A&M University-Texarkana, 7101 University Ave, Texarkana, TX 75503, USA;
| | - Shang-You Yang
- Department of Biological Sciences, Wichita State University, 1845 Fairmount St., Wichita, KS 67260, USA
- Department of Orthopedic Surgery, University of Kansas School of Medicine-Wichita, Wichita, KS 67214, USA
| | - Eylem Asmatulu
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount St., Wichita, KS 67260, USA; (A.O.I.); (B.S.); (A.P.)
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24
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Silina EV, Stupin VA, Manturova NE, Ivanova OS, Popov AL, Mysina EA, Artyushkova EB, Kryukov AA, Dodonova SA, Kruglova MP, Tinkov AA, Skalny AV, Ivanov VK. Influence of the Synthesis Scheme of Nanocrystalline Cerium Oxide and Its Concentration on the Biological Activity of Cells Providing Wound Regeneration. Int J Mol Sci 2023; 24:14501. [PMID: 37833949 PMCID: PMC10572590 DOI: 10.3390/ijms241914501] [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: 08/30/2023] [Revised: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 10/15/2023] Open
Abstract
In the ongoing search for practical uses of rare-earth metal nanoparticles, cerium dioxide nanoparticles (nanoceria) have received special attention. The purpose of this research was to study the biomedical effects of nanocrystalline forms of cerium oxide obtained by different synthesis schemes and to evaluate the effect of different concentrations of nanoceria (from 10-2 to 10-6 M) on cells involved in the regeneration of skin cell structures such as fibroblasts, mesenchymal stem cells, and keratinocytes. Two different methods of nanoceria preparation were investigated: (1) CeO-NPs-1 by precipitation from aqueous solutions of cerium (III) nitrate hexahydrate and citric acid and (2) CeO-NPs-2 by hydrolysis of ammonium hexanitratocerate (IV) under conditions of thermal autoclaving. According to the X-ray diffraction, transmission electron microscopy, and dynamic light scattering data, CeO2-1 consists of individual particles of cerium dioxide (3-5 nm) and their aggregates with diameters of 60-130 nm. CeO2-2 comprises small aggregates of 8-20 nm in diameter, which consist of particles of 2-3 nm in size. Cell cultures of human fibroblasts, human mesenchymal stem cells, and human keratinocytes were cocultured with different concentrations of nanoceria sols (10-2, 10-3, 10-4, 10-5, and 10-6 mol/L). The metabolic activity of all cell types was investigated by MTT test after 48 and 72 h, whereas proliferative activity and cytotoxicity were determined by quantitative cell culture counting and live/dead test. A dependence of biological effects on the method of nanoceria preparation and concentration was revealed. Data were obtained with respect to the optimal concentration of sol to achieve the highest metabolic effect in the used cell cultures. Hypotheses about the mechanisms of the obtained effects and the structure of a fundamentally new medical device for accelerated healing of skin wounds were formulated. The method of nanoceria synthesis and concentration fundamentally and significantly change the biological activity of cell cultures of different types-from suppression to pronounced stimulation. The best biological activity of cell cultures was determined through cocultivation with sols of citrate nanoceria (CeO-NPs-1) at a concentration of 10-3-10-4 M.
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Affiliation(s)
- Ekaterina V. Silina
- Institute of Biodesign and Modeling of Complex Systems, Center of Bioelementology and Human Ecology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.P.K.); (A.A.T.); (A.V.S.)
| | - Victor A. Stupin
- Department of Hospital Surgery, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Natalia E. Manturova
- Department of Plastic and Reconstructive Surgery, Cosmetology and Cell Technologies, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Olga S. Ivanova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia;
| | - Anton L. Popov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.L.P.); (E.A.M.)
| | - Elena A. Mysina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.L.P.); (E.A.M.)
| | - Elena B. Artyushkova
- Research Institute of Experimental Medicine, Kursk State Medical University, 305041 Kursk, Russia; (E.B.A.); (A.A.K.); (S.A.D.)
| | - Alexey A. Kryukov
- Research Institute of Experimental Medicine, Kursk State Medical University, 305041 Kursk, Russia; (E.B.A.); (A.A.K.); (S.A.D.)
| | - Svetlana A. Dodonova
- Research Institute of Experimental Medicine, Kursk State Medical University, 305041 Kursk, Russia; (E.B.A.); (A.A.K.); (S.A.D.)
| | - Maria P. Kruglova
- Institute of Biodesign and Modeling of Complex Systems, Center of Bioelementology and Human Ecology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.P.K.); (A.A.T.); (A.V.S.)
| | - Alexey A. Tinkov
- Institute of Biodesign and Modeling of Complex Systems, Center of Bioelementology and Human Ecology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.P.K.); (A.A.T.); (A.V.S.)
- Laboratory of Ecobiomonitoring and Quality Control, Yaroslavl State University, 150003 Yaroslavl, Russia
| | - Anatoly V. Skalny
- Institute of Biodesign and Modeling of Complex Systems, Center of Bioelementology and Human Ecology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (M.P.K.); (A.A.T.); (A.V.S.)
- Laboratory of Ecobiomonitoring and Quality Control, Yaroslavl State University, 150003 Yaroslavl, Russia
| | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia;
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25
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Yadav DP, Aljrees T, Kumar D, Kumar A, Singh KU, Singh T. Spatial attention-based residual network for human burn identification and classification. Sci Rep 2023; 13:12516. [PMID: 37532880 PMCID: PMC10397300 DOI: 10.1038/s41598-023-39618-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/27/2023] [Indexed: 08/04/2023] Open
Abstract
Diagnosing burns in humans has become critical, as early identification can save lives. The manual process of burn diagnosis is time-consuming and complex, even for experienced doctors. Machine learning (ML) and deep convolutional neural network (CNN) models have emerged as the standard for medical image diagnosis. The ML-based approach typically requires handcrafted features for training, which may result in suboptimal performance. Conversely, DL-based methods automatically extract features, but designing a robust model is challenging. Additionally, shallow DL methods lack long-range feature dependency, decreasing efficiency in various applications. We implemented several deep CNN models, ResNeXt, VGG16, and AlexNet, for human burn diagnosis. The results obtained from these models were found to be less reliable since shallow deep CNN models need improved attention modules to preserve the feature dependencies. Therefore, in the proposed study, the feature map is divided into several categories, and the channel dependencies between any two channel mappings within a given class are highlighted. A spatial attention map is built by considering the links between features and their locations. Our attention-based model BuRnGANeXt50 kernel and convolutional layers are also optimized for human burn diagnosis. The earlier study classified the burn based on depth of graft and non-graft. We first classified the burn based on the degree. Subsequently, it is classified into graft and non-graft. Furthermore, the proposed model performance is evaluated on Burns_BIP_US_database. The sensitivity of the BuRnGANeXt50 is 97.22% and 99.14%, respectively, for classifying burns based on degree and depth. This model may be used for quick screening of burn patients and can be executed in the cloud or on a local machine. The code of the proposed method can be accessed at https://github.com/dhirujis02/Journal.git for the sake of reproducibility.
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Affiliation(s)
- D P Yadav
- Department of Computer Engineering and Applications, GLA University, Mathura, India
| | - Turki Aljrees
- Department College of Computer Sci. and Eng., University of Hafr Al-Batin, Hafar Al-Batin, 39524, Saudi Arabia
| | - Deepak Kumar
- Department of Computer Science, NIT Meghalaya, Shillong, India
| | - Ankit Kumar
- Department of Computer Engineering and Applications, GLA University, Mathura, India.
| | - Kamred Udham Singh
- School of Computing, Graphic Era Hill University, Dehradun, 248002, India
| | - Teekam Singh
- Department of Computer Science and Engineering, Graphic Era Deemed to be University, Dehradun, 248002, India
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26
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Lotfi Z, Khakbiz M, Davari N, Bonakdar S, Mohammadi J, Shokrgozar MA, Derhambakhsh S. Fabrication and multiscale modeling of polycaprolactone/amniotic membrane electrospun nanofiber scaffolds for wound healing. Artif Organs 2023; 47:1267-1284. [PMID: 36869662 DOI: 10.1111/aor.14518] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 02/03/2023] [Accepted: 03/01/2023] [Indexed: 03/05/2023]
Abstract
BACKGROUND Enhancing the efficiency of cell-based skin tissue engineering (TE) approaches is possible via designing electrospun scaffolds possessing natural materials like amniotic membrane (AM) with wound healing characteristics. Concentrating on this aim, we fabricated innovative polycaprolactone (PCL)/AM scaffolds through the electrospinning process. METHODS The manufactured structures were characterized by employing scanning electron microscope (SEM), attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy, tensile testing, Bradford protein assay, etc. In addition, the mechanical properties of scaffolds were simulated by the multiscale modeling method. RESULTS As a result of conducting various tests, it was concluded that the uniformity and distribution of fibers decreased with an increase in the amniotic content. Furthermore, PCL-AM scaffolds contained amniotic and PCL characteristic bands. In the case of protein release, greater content of AM led to the release of higher amounts of collagen. Tensile testing revealed that scaffolds' ultimate strength increased when the AM content augmented. The multiscale modeling demonstrated that the scaffold had elastoplastic behavior. In order to assess cellular attachment, viability, and differentiation, human adipose-derived stem cells (ASCs) were seeded on the scaffolds. In this regard, SEM and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assays showed significant cellular proliferation and viability on the proposed scaffolds, and these analyses illustrated that higher cell survival and adhesion could be achieved when scaffolds possessed a larger amount of AM. After 21 days of cultivation, particular keratinocyte markers, such as keratin I and involucrin, were identified through utilizing immunofluorescence and real-time polymerase chain reaction (PCR) tests. The markers' expressions were higher in the PCL-AM scaffold with a ratio of 90:10 v v-1 compared with the PCL-epidermal growth factor (EGF) structure. Moreover, the presence of AM in the scaffolds resulted in the keratinogenic differentiation of ASCs even without employing EGF. Consequently, this state-of-the-art experiment suggests that the PCL-AM scaffold can be a promising candidate in skin bioengineering. CONCLUSION This study showed that mixing AM with PCL, a widely used polymer, in different concentrations can overcome PCL disadvantages such as high hydrophobicity and low cellular compatibility.
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Affiliation(s)
- Zahra Lotfi
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mehrdad Khakbiz
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
- Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Niyousha Davari
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Shahin Bonakdar
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Javad Mohammadi
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | | | - Sara Derhambakhsh
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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27
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Miron A, Giurcaneanu C, Mihai MM, Beiu C, Voiculescu VM, Popescu MN, Soare E, Popa LG. Antimicrobial Biomaterials for Chronic Wound Care. Pharmaceutics 2023; 15:1606. [PMID: 37376055 DOI: 10.3390/pharmaceutics15061606] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/09/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Chronic wounds encompass a myriad of lesions, including venous and arterial leg ulcers, diabetic foot ulcers (DFUs), pressure ulcers, non-healing surgical wounds and others. Despite the etiological differences, chronic wounds share several features at a molecular level. The wound bed is a convenient environment for microbial adherence, colonization and infection, with the initiation of a complex host-microbiome interplay. Chronic wound infections with mono- or poly-microbial biofilms are frequent and their management is challenging due to tolerance and resistance to antimicrobial therapy (systemic antibiotic or antifungal therapy or antiseptic topicals) and to the host's immune defense mechanisms. The ideal dressing should maintain moisture, allow water and gas permeability, absorb wound exudates, protect against bacteria and other infectious agents, be biocompatible, be non-allergenic, be non-toxic and biodegradable, be easy to use and remove and, last but not least, it should be cost-efficient. Although many wound dressings possess intrinsic antimicrobial properties acting as a barrier to pathogen invasion, adding anti-infectious targeted agents to the wound dressing may increase their efficiency. Antimicrobial biomaterials may represent a potential substitute for systemic treatment of chronic wound infections. In this review, we aim to describe the available types of antimicrobial biomaterials for chronic wound care and discuss the host response and the spectrum of pathophysiologic changes resulting from the contact between biomaterials and host tissues.
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Affiliation(s)
- Adrian Miron
- Department of General Surgery, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Clinic of General Surgery, Elias Emergency University Hospital, No. 17 Marasti Blvd., 011461 Bucharest, Romania
| | - Calin Giurcaneanu
- Department of Oncologic Dermatology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Clinic of Dermatology, Elias Emergency University Hospital, No. 17 Marasti Blvd., 011461 Bucharest, Romania
| | - Mara Madalina Mihai
- Department of Oncologic Dermatology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Clinic of Dermatology, Elias Emergency University Hospital, No. 17 Marasti Blvd., 011461 Bucharest, Romania
- Department of Microbiology, Faculty of Biology, ICUB-Research Institute, University of Bucharest, No. 90 Panduri Str., 050663 Bucharest, Romania
| | - Cristina Beiu
- Department of Oncologic Dermatology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Clinic of Dermatology, Elias Emergency University Hospital, No. 17 Marasti Blvd., 011461 Bucharest, Romania
| | - Vlad Mihai Voiculescu
- Department of Oncologic Dermatology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Clinic of Dermatology, Elias Emergency University Hospital, No. 17 Marasti Blvd., 011461 Bucharest, Romania
| | - Marius Nicolae Popescu
- Department of Microbiology, Faculty of Biology, ICUB-Research Institute, University of Bucharest, No. 90 Panduri Str., 050663 Bucharest, Romania
- Department of Physical and Rehabilitation Medicine, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Clinic of Physical and Rehabilitation Medicine, Elias Emergency University Hospital, No. 17 Marasti Blvd., 011461 Bucharest, Romania
| | - Elena Soare
- Department of Oncologic Dermatology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
| | - Liliana Gabriela Popa
- Department of Oncologic Dermatology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, No. 37 Dionisie Lupu Str., 030167 Bucharest, Romania
- Clinic of Dermatology, Elias Emergency University Hospital, No. 17 Marasti Blvd., 011461 Bucharest, Romania
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28
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Fadilah NIM, Riha SM, Mazlan Z, Wen APY, Hao LQ, Joseph B, Maarof M, Thomas S, Motta A, Fauzi MB. Functionalised-biomatrix for wound healing and cutaneous regeneration: future impactful medical products in clinical translation and precision medicine. Front Bioeng Biotechnol 2023; 11:1160577. [PMID: 37292094 PMCID: PMC10245056 DOI: 10.3389/fbioe.2023.1160577] [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: 02/07/2023] [Accepted: 05/08/2023] [Indexed: 06/10/2023] Open
Abstract
Skin tissue engineering possesses great promise in providing successful wound injury and tissue loss treatments that current methods cannot treat or achieve a satisfactory clinical outcome. A major field direction is exploring bioscaffolds with multifunctional properties to enhance biological performance and expedite complex skin tissue regeneration. Multifunctional bioscaffolds are three-dimensional (3D) constructs manufactured from natural and synthetic biomaterials using cutting-edge tissue fabrication techniques incorporated with cells, growth factors, secretomes, antibacterial compounds, and bioactive molecules. It offers a physical, chemical, and biological environment with a biomimetic framework to direct cells toward higher-order tissue regeneration during wound healing. Multifunctional bioscaffolds are a promising possibility for skin regeneration because of the variety of structures they provide and the capacity to customise the chemistry of their surfaces, which allows for the regulated distribution of bioactive chemicals or cells. Meanwhile, the current gap is through advanced fabrication techniques such as computational designing, electrospinning, and 3D bioprinting to fabricate multifunctional scaffolds with long-term safety. This review stipulates the wound healing processes used by commercially available engineered skin replacements (ESS), highlighting the demand for a multifunctional, and next-generation ESS replacement as the goals and significance study in tissue engineering and regenerative medicine (TERM). This work also scrutinise the use of multifunctional bioscaffolds in wound healing applications, demonstrating successful biological performance in the in vitro and in vivo animal models. Further, we also provided a comprehensive review in requiring new viewpoints and technological innovations for the clinical application of multifunctional bioscaffolds for wound healing that have been found in the literature in the last 5 years.
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Affiliation(s)
- Nur Izzah Md Fadilah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Shaima Maliha Riha
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Zawani Mazlan
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Adzim Poh Yuen Wen
- Department of Surgery, Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Looi Qi Hao
- My Cytohealth Sdn Bhd Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Blessy Joseph
- Business Innovation and Incubation Centre, Mahatma Gandhi University, Kottayam, Kerala, India
| | - Manira Maarof
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Sabu Thomas
- International and Inter University Centre for Nanosciences and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India
| | - Antonella Motta
- Department of Industrial Engineering, University of Trento, Trento, Italy
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Elfawy LA, Ng CY, Amirrah IN, Mazlan Z, Wen APY, Fadilah NIM, Maarof M, Lokanathan Y, Fauzi MB. Sustainable Approach of Functional Biomaterials-Tissue Engineering for Skin Burn Treatment: A Comprehensive Review. Pharmaceuticals (Basel) 2023; 16:ph16050701. [PMID: 37242483 DOI: 10.3390/ph16050701] [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: 03/21/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Burns are a widespread global public health traumatic injury affecting many people worldwide. Non-fatal burn injuries are a leading cause of morbidity, resulting in prolonged hospitalization, disfigurement, and disability, often with resulting stigma and rejection. The treatment of burns is aimed at controlling pain, removing dead tissue, preventing infection, reducing scarring risk, and tissue regeneration. Traditional burn wound treatment methods include the use of synthetic materials such as petroleum-based ointments and plastic films. However, these materials can be associated with negative environmental impacts and may not be biocompatible with the human body. Tissue engineering has emerged as a promising approach to treating burns, and sustainable biomaterials have been developed as an alternative treatment option. Green biomaterials such as collagen, cellulose, chitosan, and others are biocompatible, biodegradable, environment-friendly, and cost-effective, which reduces the environmental impact of their production and disposal. They are effective in promoting wound healing and reducing the risk of infection and have other benefits such as reducing inflammation and promoting angiogenesis. This comprehensive review focuses on the use of multifunctional green biomaterials that have the potential to revolutionize the way we treat skin burns, promoting faster and more efficient healing while minimizing scarring and tissue damage.
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Affiliation(s)
- Loai A Elfawy
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Chiew Yong Ng
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Ibrahim N Amirrah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Zawani Mazlan
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Adzim Poh Yuen Wen
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
- Department of Surgery, Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Nur Izzah Md Fadilah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Manira Maarof
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Yogeswaran Lokanathan
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
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Jung SH, Jang BH, Kwon S, Park SJ, Park TE, Kang JH. Nematic Fibrin Fibers Enabling Vascularized Thrombus Implants Facilitate Scarless Cutaneous Wound Healing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2211149. [PMID: 37052392 DOI: 10.1002/adma.202211149] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Autologous implantable scaffolds that induce vasculogenesis have shown great potential in tissue regeneration; however, previous attempts mainly relied on cell-laden hydrogel patches using fat tissues or platelet-rich plasma, which are insufficient for generating a uniform vasculature in a scalable manner. Here, implantable vascularized engineered thrombi (IVETs) are presented using autologous whole blood, which potentiate effective skin wound healing by constructing robust microcapillary vessel networks at the wound site. Microfluidic shear stresses enable the alignment of bundled fibrin fibers along the direction of the blood flow streamlines and the activation of platelets, both of which offer moderate stiffness of the microenvironment optimal for facilitating endothelial cell maturation and vascularization. Rodent dorsal skin wounds patched with IVET present superior wound closure rates (96.08 ± 1.58%), epidermis thickness, collagen deposition, hair follicle numbers, and neutrophil infiltration, which are permitted by enhanced microvascular circulation. Moreover, IVET treatment accelerates wound healing by recruiting M2 phenotype macrophages.
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Affiliation(s)
- Su Hyun Jung
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST gil 50, Ulsan, 44919, Republic of Korea
| | - Bong Hwan Jang
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST gil 50, Ulsan, 44919, Republic of Korea
| | - Seyong Kwon
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST gil 50, Ulsan, 44919, Republic of Korea
| | - Sung Jin Park
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST gil 50, Ulsan, 44919, Republic of Korea
| | - Tae-Eun Park
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST gil 50, Ulsan, 44919, Republic of Korea
| | - Joo H Kang
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST gil 50, Ulsan, 44919, Republic of Korea
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Wang Z, Xu H, Yang H, Zhang Y, Wang X, Wang P, Xu Z, Lv D, Rong Y, Dong Y, Tang B, Hu Z, Deng W, Zhu J. Single-stage transplantation combined with epidermal stem cells promotes the survival of tissue-engineered skin by inducing early angiogenesis. Stem Cell Res Ther 2023; 14:51. [PMID: 36959609 PMCID: PMC10035248 DOI: 10.1186/s13287-023-03281-z] [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: 08/13/2022] [Accepted: 03/13/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND The composite transplantation of a split-thickness skin graft (STSG) combined with an acellular dermal matrix (ADM) is a promising repair method for full-thickness skin defects. Due to delayed vascularization of the ADM, no currently available engineered skin tissue is able to permanently cover full-thickness skin defects via a single-stage procedure. Epidermal stem cells (EpSCs) have been found to promote angiogenesis in the wound bed. Whether EpSCs can induce early angiogenesis of dermal substitutes and promote the survival of single-stage tissue-engineered skin transplantation needs to be further studied. METHODS In vitro, rat vascular endothelial cells (RVECs) were treated with the supernatant of EpSCs cultured in ADM and stimulated for 48 h. RVECs were analysed by RNA sequencing and tube formation assays. For the in vivo experiment, 75 rats were randomly divided into five groups: ADM, ADM + EpSCs (AE), STSG, ADM + STSG (AS), and ADM + STSG + EpSCs (ASE) groups. The quality of wound healing was estimated by general observation and H&E and Masson staining. The blood perfusion volume was evaluated using the LDPI system, and the expression of vascular markers was determined by immunohistochemistry (IHC). RESULTS The active substances secreted by EpSCs cultured in ADM promoted angiogenesis, as shown by tube formation experiments and RNA-seq. EpSCs promoted epithelialization of the ADM and vascularization of the ADM implant. The ASE group showed significantly increased skin graft survival, reduced skin contraction, and an improved cosmetic appearance compared with the AS group and the STSG control group. CONCLUSIONS In summary, our findings suggest that EpSCs promote the formation of new blood vessels in dermal substitutes and support one-step transplantation of tissue-engineered skin, and thereby provide new ideas for clinical application.
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Affiliation(s)
- Zhiyong Wang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Hailin Xu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Hao Yang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yi Zhang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoyan Wang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Peng Wang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhongye Xu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Dongming Lv
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yanchao Rong
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yunxian Dong
- Department of Plastic Surgery, Guangdong Second Provincial General Hospital, Southern Medical University, Guangzhou, China
| | - Bing Tang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhicheng Hu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
| | - Wuguo Deng
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China.
| | - Jiayuan Zhu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
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Fadilah NIM, Phang SJ, Kamaruzaman N, Salleh A, Zawani M, Sanyal A, Maarof M, Fauzi MB. Antioxidant Biomaterials in Cutaneous Wound Healing and Tissue Regeneration: A Critical Review. Antioxidants (Basel) 2023; 12:antiox12040787. [PMID: 37107164 DOI: 10.3390/antiox12040787] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/21/2023] [Accepted: 03/07/2023] [Indexed: 03/29/2023] Open
Abstract
Natural-based biomaterials play an important role in developing new products for medical applications, primarily in cutaneous injuries. A large panel of biomaterials with antioxidant properties has revealed an advancement in supporting and expediting tissue regeneration. However, their low bioavailability in preventing cellular oxidative stress through the delivery system limits their therapeutic activity at the injury site. The integration of antioxidant compounds in the implanted biomaterial should be able to maintain their antioxidant activity while facilitating skin tissue recovery. This review summarises the recent literature that reported the role of natural antioxidant-incorporated biomaterials in promoting skin wound healing and tissue regeneration, which is supported by evidence from in vitro, in vivo, and clinical studies. Antioxidant-based therapies for wound healing have shown promising evidence in numerous animal studies, even though clinical studies remain very limited. We also described the underlying mechanism of reactive oxygen species (ROS) generation and provided a comprehensive review of ROS-scavenging biomaterials found in the literature in the last six years.
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Immobilization and Release of Platelet-Rich Plasma from Modified Nanofibers Studied by Advanced X-ray Photoelectron Spectroscopy Analyses. Polymers (Basel) 2023; 15:polym15061440. [PMID: 36987220 PMCID: PMC10056793 DOI: 10.3390/polym15061440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/15/2023] Open
Abstract
Platelet-rich Plasma (PRP) is an ensemble of growth factors, extracellular matrix components, and proteoglycans that are naturally balanced in the human body. In this study, the immobilization and release of PRP component nanofiber surfaces modified by plasma treatment in a gas discharge have been investigated for the first time. The plasma-treated polycaprolactone (PCL) nanofibers were utilized as substrates for the immobilization of PRP, and the amount of PRP immobilized was assessed by fitting a specific X-ray Photoelectron Spectroscopy (XPS) curve to the elemental composition changes. The release of PRP was then revealed by measuring the XPS after soaking nanofibers containing immobilized PRP in buffers of varying pHs (4.8; 7.4; 8.1). Our investigations have proven that the immobilized PRP would continue to cover approximately fifty percent of the surface after eight days.
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Pattnaik A, Sanket AS, Pradhan S, Sahoo R, Das S, Pany S, Douglas TEL, Dandela R, Liu Q, Rajadas J, Pati S, De Smedt SC, Braeckmans K, Samal SK. Designing of gradient scaffolds and their applications in tissue regeneration. Biomaterials 2023; 296:122078. [PMID: 36921442 DOI: 10.1016/j.biomaterials.2023.122078] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 02/19/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Gradient scaffolds are isotropic/anisotropic three-dimensional structures with gradual transitions in geometry, density, porosity, stiffness, etc., that mimic the biological extracellular matrix. The gradient structures in biological tissues play a major role in various functional and metabolic activities in the body. The designing of gradients in the scaffold can overcome the current challenges in the clinic compared to conventional scaffolds by exhibiting excellent penetration capacity for nutrients & cells, increased cellular adhesion, cell viability & differentiation, improved mechanical stability, and biocompatibility. In this review, the recent advancements in designing gradient scaffolds with desired biomimetic properties, and their implication in tissue regeneration applications have been briefly explained. Furthermore, the gradients in native tissues such as bone, cartilage, neuron, cardiovascular, skin and their specific utility in tissue regeneration have been discussed in detail. The insights from such advances using gradient-based scaffolds can widen the horizon for using gradient biomaterials in tissue regeneration applications.
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Affiliation(s)
- Ananya Pattnaik
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-Regional Medical Research Centre, Bhubaneswar, 751023, Odisha, India
| | - A Swaroop Sanket
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-Regional Medical Research Centre, Bhubaneswar, 751023, Odisha, India
| | - Sanghamitra Pradhan
- Department of Chemistry, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Bhubaneswar, 751030, Odisha, India
| | - Rajashree Sahoo
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-Regional Medical Research Centre, Bhubaneswar, 751023, Odisha, India
| | - Sudiptee Das
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-Regional Medical Research Centre, Bhubaneswar, 751023, Odisha, India
| | - Swarnaprbha Pany
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-Regional Medical Research Centre, Bhubaneswar, 751023, Odisha, India
| | - Timothy E L Douglas
- Engineering Department, Lancaster University, Lancaster, United Kingdom; Materials Science Institute, Lancaster University, Lancaster, United Kingdom
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Indian Oil Odisha Campus, Bhubaneswar, Odisha, India
| | - Qiang Liu
- Advanced Drug Delivery and Regenerative Biomaterials Laboratory, Cardiovascular Institute, Stanford University School of Medicine, Department of Medicine, Stanford University, California, 94304, USA
| | - Jaykumar Rajadas
- Advanced Drug Delivery and Regenerative Biomaterials Laboratory, Cardiovascular Institute, Stanford University School of Medicine, Department of Medicine, Stanford University, California, 94304, USA; Department of Bioengineering and Therapeutic Sciences, University of California San Francusco (UCSF) School of Parmacy, California, USA
| | - Sanghamitra Pati
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-Regional Medical Research Centre, Bhubaneswar, 751023, Odisha, India
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, University of Ghent, Ghent, 9000, Belgium.
| | - Kevin Braeckmans
- Laboratory of General Biochemistry and Physical Pharmacy, University of Ghent, Ghent, 9000, Belgium
| | - Sangram Keshari Samal
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-Regional Medical Research Centre, Bhubaneswar, 751023, Odisha, India.
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Vuerich R, Groppa E, Vodret S, Ring NAR, Stocco C, Bossi F, Agostinis C, Cauteruccio M, Colliva A, Ramadan M, Simoncello F, Benvenuti F, Agnelli A, Dore F, Mazzarol F, Moretti M, Paulitti A, Palmisano S, De Manzini N, Chiesa M, Casaburo M, Raucci A, Lorizio D, Pompilio G, Bulla R, Papa G, Zacchigna S. Ischemic wound revascularization by the stromal vascular fraction relies on host-donor hybrid vessels. NPJ Regen Med 2023; 8:8. [PMID: 36774354 PMCID: PMC9922297 DOI: 10.1038/s41536-023-00283-6] [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: 07/14/2022] [Accepted: 01/25/2023] [Indexed: 02/13/2023] Open
Abstract
Nonhealing wounds place a significant burden on both quality of life of affected patients and health systems. Skin substitutes are applied to promote the closure of nonhealing wounds, although their efficacy is limited by inadequate vascularization. The stromal vascular fraction (SVF) from the adipose tissue is a promising therapy to overcome this limitation. Despite a few successful clinical trials, its incorporation in the clinical routine has been hampered by their inconsistent results. All these studies concluded by warranting pre-clinical work aimed at both characterizing the cell types composing the SVF and shedding light on their mechanism of action. Here, we established a model of nonhealing wound, in which we applied the SVF in combination with a clinical-grade skin substitute. We purified the SVF cells from transgenic animals to trace their fate after transplantation and observed that it gave rise to a mature vascular network composed of arteries, capillaries, veins, as well as lymphatics, structurally and functionally connected with the host circulation. Then we moved to a human-in-mouse model and confirmed that SVF-derived endothelial cells formed hybrid human-mouse vessels, that were stabilized by perivascular cells. Mechanistically, SVF-derived endothelial cells engrafted and expanded, directly contributing to the formation of new vessels, while a population of fibro-adipogenic progenitors stimulated the expansion of the host vasculature in a paracrine manner. These data have important clinical implications, as they provide a steppingstone toward the reproducible and effective adoption of the SVF as a standard care for nonhealing wounds.
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Affiliation(s)
- Roman Vuerich
- grid.425196.d0000 0004 1759 4810Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy ,grid.5133.40000 0001 1941 4308Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Elena Groppa
- grid.425196.d0000 0004 1759 4810Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy ,grid.5970.b0000 0004 1762 9868Present Address: Scuola Internazionale Studi Superiori Avanzati (SISSA), 34136 Trieste, Italy
| | - Simone Vodret
- grid.425196.d0000 0004 1759 4810Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Nadja Annelies Ruth Ring
- grid.425196.d0000 0004 1759 4810Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy ,Present Address: Ludwig Boltzmann Research Group SHoW—Senescence and Healing of Wounds, LBI Trauma, Vienna, Austria
| | - Chiara Stocco
- grid.5133.40000 0001 1941 4308Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy ,grid.413694.dPlastic Reconstructive and Aesthetic Surgery Department, Ospedale di Cattinara, ASUGI, 34149 Trieste, Italy
| | - Fleur Bossi
- grid.418712.90000 0004 1760 7415Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico (I.R.C.C.S.) “Burlo Garofolo”, Trieste, Italy
| | - Chiara Agostinis
- grid.418712.90000 0004 1760 7415Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico (I.R.C.C.S.) “Burlo Garofolo”, Trieste, Italy
| | - Matteo Cauteruccio
- grid.425196.d0000 0004 1759 4810Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy ,grid.5133.40000 0001 1941 4308Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Andrea Colliva
- grid.425196.d0000 0004 1759 4810Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Mohammad Ramadan
- grid.425196.d0000 0004 1759 4810Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Francesca Simoncello
- grid.425196.d0000 0004 1759 4810Cellular Immunology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Federica Benvenuti
- grid.425196.d0000 0004 1759 4810Cellular Immunology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Anna Agnelli
- grid.460062.60000000459364044Nuclear Medicine Unit, University Hospital of Trieste—ASUGI, Trieste, Italy
| | - Franca Dore
- grid.460062.60000000459364044Nuclear Medicine Unit, University Hospital of Trieste—ASUGI, Trieste, Italy
| | | | | | | | - Silvia Palmisano
- grid.5133.40000 0001 1941 4308Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Nicolò De Manzini
- grid.5133.40000 0001 1941 4308Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Mattia Chiesa
- grid.418230.c0000 0004 1760 1750Centro Cardiologico Monzino IRCCS, Milano, Italy
| | - Manuel Casaburo
- grid.418230.c0000 0004 1760 1750Centro Cardiologico Monzino IRCCS, Milano, Italy
| | - Angela Raucci
- grid.418230.c0000 0004 1760 1750Centro Cardiologico Monzino IRCCS, Milano, Italy
| | - Daniela Lorizio
- grid.418230.c0000 0004 1760 1750Centro Cardiologico Monzino IRCCS, Milano, Italy
| | - Giulio Pompilio
- grid.418230.c0000 0004 1760 1750Centro Cardiologico Monzino IRCCS, Milano, Italy ,grid.4708.b0000 0004 1757 2822Department of Biomedical, Surgical and Dental Sciences, University of Milano, 20122 Milano, Italy
| | - Roberta Bulla
- grid.5133.40000 0001 1941 4308Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Giovanni Papa
- grid.5133.40000 0001 1941 4308Department of Life Sciences, University of Trieste, Trieste, Italy ,grid.5133.40000 0001 1941 4308Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Serena Zacchigna
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy. .,Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy. .,Centro Cardiologico Monzino IRCCS, Milano, Italy.
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Barreto MEV, Medeiros RP, Shearer A, Fook MVL, Montazerian M, Mauro JC. Gelatin and Bioactive Glass Composites for Tissue Engineering: A Review. J Funct Biomater 2022; 14:23. [PMID: 36662070 PMCID: PMC9861949 DOI: 10.3390/jfb14010023] [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: 12/06/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Nano-/micron-sized bioactive glass (BG) particles are attractive candidates for both soft and hard tissue engineering. They can chemically bond to the host tissues, enhance new tissue formation, activate cell proliferation, stimulate the genetic expression of proteins, and trigger unique anti-bacterial, anti-inflammatory, and anti-cancer functionalities. Recently, composites based on biopolymers and BG particles have been developed with various state-of-the-art techniques for tissue engineering. Gelatin, a semi-synthetic biopolymer, has attracted the attention of researchers because it is derived from the most abundant protein in the body, viz., collagen. It is a polymer that can be dissolved in water and processed to acquire different configurations, such as hydrogels, fibers, films, and scaffolds. Searching "bioactive glass gelatin" in the tile on Scopus renders 80 highly relevant articles published in the last ~10 years, which signifies the importance of such composites. First, this review addresses the basic concepts of soft and hard tissue engineering, including the healing mechanisms and limitations ahead. Then, current knowledge on gelatin/BG composites including composition, processing and properties is summarized and discussed both for soft and hard tissue applications. This review explores physical, chemical and mechanical features and ion-release effects of such composites concerning osteogenic and angiogenic responses in vivo and in vitro. Additionally, recent developments of BG/gelatin composites using 3D/4D printing for tissue engineering are presented. Finally, the perspectives and current challenges in developing desirable composites for the regeneration of different tissues are outlined.
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Affiliation(s)
- Maria E. V. Barreto
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Rebeca P. Medeiros
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Adam Shearer
- Department of Materials Science and Engineering, The Pennsylvania State University, State College, PA 16802, USA
| | - Marcus V. L. Fook
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Maziar Montazerian
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - John C. Mauro
- Department of Materials Science and Engineering, The Pennsylvania State University, State College, PA 16802, USA
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Ahmad N. In Vitro and In Vivo Characterization Methods for Evaluation of Modern Wound Dressings. Pharmaceutics 2022; 15:pharmaceutics15010042. [PMID: 36678671 PMCID: PMC9864730 DOI: 10.3390/pharmaceutics15010042] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/10/2022] [Accepted: 12/17/2022] [Indexed: 12/25/2022] Open
Abstract
Chronic wound management represents a major challenge in the healthcare sector owing to its delayed wound-healing process progression and huge financial burden. In this regard, wound dressings provide an appropriate platform for facilitating wound healing for several decades. However, adherent traditional wound dressings do not provide effective wound healing for highly exudating chronic wounds and need the development of newer and innovative wound dressings to facilitate accelerated wound healing. In addition, these dressings need frequent changing, resulting in more pain and discomfort. In order to overcome these issues, a wide range of affordable and innovative modern wound dressings have been developed and explored recently to accelerate and improve the wound healing process. However, a comprehensive understanding of various in vitro and in vivo characterization methods being utilized for the evaluation of different modern wound dressings is lacking. In this context, an overview of modern dressings and their complete in vitro and in vivo characterization methods for wound healing assessment is provided in this review. Herein, various emerging modern wound dressings with advantages and challenges have also been reviewed. Furthermore, different in vitro wound healing assays and in vivo wound models being utilized for the evaluation of wound healing progression and wound healing rate using wound dressings are discussed in detail. Finally, a summary of modern wound dressings with challenges and the future outlook is highlighted.
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Affiliation(s)
- Naveed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Aljouf, Saudi Arabia
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Chen L, Huang C, Zhong Y, Chen Y, Zhang H, Zheng Z, Jiang Z, Wei X, Peng Y, Huang L, Niu L, Gao Y, Ma J, Yang L. Multifunctional sponge scaffold loaded with concentrated growth factors for promoting wound healing. iScience 2022; 26:105835. [PMID: 36624841 PMCID: PMC9823238 DOI: 10.1016/j.isci.2022.105835] [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: 10/11/2022] [Revised: 11/10/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Although both are applied in regenerative medicine, acellular dermal matrix (ADM) and concentrated growth factor (CGF) have their respective shortcoming: The functioning of CGF is often hindered by sudden release effects, among other problems, and ADM can only be used in outer dressing for wound healing. In this study, a compound network with physical-chemical double cross-linking was constructed using chemical cross-linking and the intertwining of ADM and chitosan chains under freezing conditions; equipped with good biocompatibility and cell/tissue affinity, the heparin-modified composite scaffold was able to significantly promote cell adhesion and proliferation to achieve adequate fixation and slow down the release of CGF; polydopamine nanoparticles having excellent near-infrared light photothermal conversion ability could significantly promote the survival of rat autologous skin grafts. In a word, this multifunctional composite scaffold is a promising new type of implant biomaterial capable of delivering CGF to promote the healing of full-thickness skin defects.
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Affiliation(s)
- Lianglong Chen
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Chaoyang Huang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Yu Zhong
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Yujia Chen
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Huihui Zhang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Zijun Zheng
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Ziwei Jiang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Xuerong Wei
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Yujie Peng
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Lei Huang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Libin Niu
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China
| | - Yanbin Gao
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China,Corresponding author
| | - Jun Ma
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China,Corresponding author
| | - Lei Yang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou 510515, P.R. China,Corresponding author
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The Influence of Novel, Biocompatible, and Bioresorbable Poly(3-hydroxyoctanoate) Dressings on Wound Healing in Mice. Int J Mol Sci 2022; 23:ijms232416159. [PMID: 36555799 PMCID: PMC9785414 DOI: 10.3390/ijms232416159] [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: 11/04/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
The human body's natural protective barrier, the skin, is exposed daily to minor or major mechanical trauma, which can compromise its integrity. Therefore, the search for new dressing materials that can offer new functionalisation is fully justified. In this work, the development of two new types of dressings based on poly(3-hydroxyoctanoate) (P(3HO)) is presented. One of the groups was supplemented with conjugates of an anti-inflammatory substance (diclofenac) that was covalently linked to oligomers of hydroxycarboxylic acids (Oli-dicP(3HO)). The novel dressings were prepared using the solvent casting/particulate leaching technique. To our knowledge, this is the first paper in which P(3HO)-based dressings were used in mice wound treatment. The results of our research confirm that dressings based on P(3HO) are safe, do not induce an inflammatory response, reduce the expression of pro-inflammatory cytokines, provide adequate wound moisture, support angiogenesis, and, thanks to their hydrophobic characteristics, provide an ideal protective barrier. Newly designed dressings containing Oli-dicP(3HO) can promote tissue regeneration by partially reducing the inflammation at the injury site. To conclude, the presented materials might be potential candidates as excellent dressings for wound treatment.
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Song J, Gao H, Zhang H, George OJ, Hillman AS, Fox JM, Jia X. Matrix Adhesiveness Regulates Myofibroblast Differentiation from Vocal Fold Fibroblasts in a Bio-orthogonally Cross-linked Hydrogel. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51669-51682. [PMID: 36367478 PMCID: PMC10350853 DOI: 10.1021/acsami.2c13852] [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] [Indexed: 06/16/2023]
Abstract
Repeated mechanical and chemical insults cause an irreversible alteration of extracellular matrix (ECM) composition and properties, giving rise to vocal fold scarring that is refractory to treatment. Although it is well known that fibroblast activation to myofibroblast is the key to the development of the pathology, the lack of a physiologically relevant in vitro model of vocal folds impedes mechanistic investigations on how ECM cues promote myofibroblast differentiation. Herein, we describe a bio-orthogonally cross-linked hydrogel platform that recapitulates the alteration of matrix adhesiveness due to enhanced fibronectin deposition when vocal fold wound healing is initiated. The synthetic ECM (sECM) was established via the cycloaddition reaction of tetrazine (Tz) with slow (norbornene, Nb)- and fast (trans-cyclooctene, TCO)-reacting dienophiles. The relatively slow Tz-Nb ligation allowed the establishment of the covalent hydrogel network for 3D cell encapsulation, while the rapid and efficient Tz-TCO reaction enabled precise conjugation of the cell-adhesive RGDSP peptide in the hydrogel network. To mimic the dynamic changes of ECM composition during wound healing, RGDSP was conjugated to cell-laden hydrogel constructs via a diffusion-controlled bioorthognal ligation method 3 days post encapsulation. At a low RGDSP concentration (0.2 mM), fibroblasts residing in the hydrogel remained quiescent when maintained in transforming growth factor beta 1 (TGF-β1)-conditioned media. However, at a high concentration (2 mM), RGDSP potentiated TGF-β1-induced myofibroblast differentiation, as evidenced by the formation of an actin cytoskeleton network, including F-actin and alpha-smooth muscle actin. The RGDSP-driven fibroblast activation to myofibroblast was accompanied with an increase in the expression of wound healing-related genes, the secretion of profibrotic cytokines, and matrix contraction required for tissue remodeling. This work represents the first step toward the establishment of a 3D hydrogel-based cellular model for studying myofibroblast differentiation in a defined niche associated with vocal fold scarring.
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Affiliation(s)
- Jiyeon Song
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Hanyuan Gao
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - He Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Olivia J. George
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Ashlyn S. Hillman
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware, USA
| | - Joseph. M. Fox
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware, USA
- Delaware Biotechnology Institute, 590 Avenue 1743, Newark, Delaware, USA
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41
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An ultrasound-enhanced electrospinning for generating multilayered nanofibrous structures. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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42
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Li F, Wang G, Wu B. Clinical application of traditional Chinese medicine powder in the treatment of acute and chronic wounds. Int Wound J 2022; 20:799-805. [PMID: 36148625 PMCID: PMC9927914 DOI: 10.1111/iwj.13925] [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: 07/07/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/28/2022] Open
Abstract
This study aimed to explore the clinical application and efficacy of traditional Chinese medicine (TCM) powder in the treatment of acute and chronic wounds. Eighty patients with a wound infection were randomly and equally divided into a control group and an observation group. Gauze padding containing furacilin was used to dress the infected wounds of the control group. TCM powder was used to treat the wounds of the observation group. The total response rate of the observation group was significantly higher than the control group (P = .017). The colour and exudate volume scores in the observation group were lower than the control group, and the differences between the two groups were statistically significant (P < .05). The time to the appearance of new epithelium and time to the wound healing of the burns in the observation group were shorter than the control group, and the differences were statistically significant (P < .05). The TCM powder absorbed a large amount of necrotic tissue and exudate from the wound surface, cleared heat and toxins, and activated blood circulation. It also resolved blood stasis, eliminated pus, and allowed for new skin growth, as well as regenerating muscle.
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Affiliation(s)
- Fu‐Lei Li
- Department of General SurgeryHeping Hospital Affiliated to Changzhi Medical CollegeChangzhiChina
| | | | - Bu‐Qiang Wu
- Department of General SurgeryHeping Hospital Affiliated to Changzhi Medical CollegeChangzhiChina
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The Discovery and Development of Natural-Based Biomaterials with Demonstrated Wound Healing Properties: A Reliable Approach in Clinical Trials. Biomedicines 2022; 10:biomedicines10092226. [PMID: 36140332 PMCID: PMC9496351 DOI: 10.3390/biomedicines10092226] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Current research across the globe still focuses strongly on naturally derived biomaterials in various fields, particularly wound care. There is a need for more effective therapies that will address the physiological deficiencies underlying chronic wound treatment. The use of moist bioactive scaffolds has significantly increased healing rates compared to local and traditional treatments. However, failure to heal or prolonging the wound healing process results in increased financial and social stress imposed on health institutions, caregivers, patients, and their families. The urgent need to identify practical, safe, and cost-effective wound healing scaffolding from natural-based biomaterials that can be introduced into clinical practice is unequivocal. Naturally derived products have long been used in wound healing; however, clinical trial evaluations of these therapies are still in their infancy. Additionally, further well-designed clinical trials are necessary to confirm the efficacy and safety of natural-based biomaterials in treating wounds. Thus, the focus of this review is to describe the current insight, the latest discoveries in selected natural-based wound healing implant products, the possible action mechanisms, and an approach to clinical studies. We explore several tested products undergoing clinical trials as a novel approach to counteract the debilitating effects of impaired wound healing.
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Wojcik M, Kazimierczak P, Belcarz A, Wilczynska A, Vivcharenko V, Pajchel L, Adaszek L, Przekora A. Biocompatible curdlan-based biomaterials loaded with gentamicin and Zn-doped nano-hydroxyapatite as promising dressing materials for the treatment of infected wounds and prevention of surgical site infections. BIOMATERIALS ADVANCES 2022; 139:213006. [PMID: 35882153 DOI: 10.1016/j.bioadv.2022.213006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/18/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
A topical application of antibiotic-loaded wound dressings is recommended only for chronically infected wounds with poor vascularization. Thus, more often dressing materials loaded with antibacterial metal ions are produced. In turn, gentamicin sponges are commonly used to prevent surgical site infections. The aim of this study was to produce curdlan-based biomaterials enriched with gentamicin and zinc (Zn)-doped nano-hydroxyapatite to prevent wound and surgical site infections. Developed biomaterials were subjected to basic microstructural characterization, cytotoxicity test against human skin fibroblasts (BJ cell line), and comprehensive microbiological experiments using Staphylococcus aureus and Pseudomonas aeruginosa strains. To evaluate the in vivo healing capacity of the developed biomaterials, severely infected chronic wound in a veterinary patient was treated with the use of gentamicin-loaded dressing. Fabricated biomaterials were characterized by a highly porous microstructure with high plasma absorption capacity (approx. 7 mL/g for Zn-loaded biomaterial and 13 mL/g for gentamicin-enriched dressing) and optimal water vapor transmission rate (approx. 1700 g/m2/day). Due to the presence of bioceramics, material containing Zn showed slightly higher compressive strength (0.37 MPa) and Young's modulus (3.33 MPa) values compared to gentamicin-loaded biomaterial (0.12 MPa and 1.29 MPa, respectively). Gentamicin-enriched biomaterial showed burst release of the drug within the first 5 h, while, the zinc-loaded biomaterial exhibited a constant gradual release of the zinc ions. Conducted assays showed that developed biomaterials were non-toxic against human skin fibroblasts (cell viability in the range of 71-95 %) and revealed strong bactericidal activity (99.9 % reduction in the number of viable bacterial CFUs in direct contact test) against S. aureus. In the case of P. aeruginosa, only gentamicin-loaded biomaterial exhibited bactericidal effect. Additionally, biomaterials had the ability to uptake, lock in, and kill bacteria within their gel structure, enabling the cleansing of the wound bed at every dressing change. Finally, the treatment of severely infected wound in veterinary patient confirmed the effectiveness of gentamicin-loaded biomaterial. Biomaterial enriched with gentamicin possesses great potential to be used as a dressing material or sponge for the treatment of chronically infected wounds and surgical site infections. In turn, the zinc-loaded biomaterial may be used as a wound dressing to reduce and prevent microbial contamination.
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Affiliation(s)
- Michal Wojcik
- Independent Unit of Tissue Engineering and Regenerative Medicine, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
| | - Paulina Kazimierczak
- Independent Unit of Tissue Engineering and Regenerative Medicine, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
| | - Anna Belcarz
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
| | - Anna Wilczynska
- Department of Epizootiology and Infectious Diseases, University of Life Sciences in Lublin, Gleboka 30 Street, 20-612 Lublin, Poland
| | - Vladyslav Vivcharenko
- Independent Unit of Tissue Engineering and Regenerative Medicine, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
| | - Lukasz Pajchel
- Department of Analytical Chemistry and Biomaterials, Medical University of Warsaw, Banacha 1 Street, 02-097 Warsaw, Poland
| | - Lukasz Adaszek
- Department of Epizootiology and Infectious Diseases, University of Life Sciences in Lublin, Gleboka 30 Street, 20-612 Lublin, Poland
| | - Agata Przekora
- Independent Unit of Tissue Engineering and Regenerative Medicine, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland.
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Lin Y, Chen Z, Liu Y, Wang J, Lv W, Peng R. Recent Advances in Nano-Formulations for Skin Wound Repair Applications. Drug Des Devel Ther 2022; 16:2707-2728. [PMID: 35996567 PMCID: PMC9392552 DOI: 10.2147/dddt.s375541] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/27/2022] [Indexed: 11/23/2022] Open
Abstract
Skin injuries caused by accidents and acute or chronic diseases place a heavy burden on patients and health care systems. Current treatments mainly depend on preventing infection, debridement, and hemostasis and on supplementing growth factors, but patients will still have scar tissue proliferation or difficulty healing and other problems after treatment. Conventional treatment usually focuses on a single factor or process of wound repair and often ignores the influence of the wound pathological microenvironment on the final healing effect. Therefore, it is of substantial research value to develop multifunctional therapeutic methods that can actively regulate the wound microenvironment and reduce the oxidative stress level at the wound site to promote the repair of skin wounds. In recent years, various bioactive nanomaterials have shown great potential in tissue repair and regeneration due to their properties, including their unique surface interface effect, small size effect, enzyme activity and quantum effect. This review summarizes the mechanisms underlying skin wound repair and the defects in traditional treatment methods. We focus on analyzing the advantages of different types of nanomaterials and comment on their toxicity and side effects when used for skin wound repair.
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Affiliation(s)
- Yue Lin
- Department of Emergency, The Third Affiliated Hospital of Shanghai University & Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People’s Hospital, Wenzhou, People’s Republic of China
| | - Zheyan Chen
- Department of Plastic Surgery, The Third Affiliated Hospital of Shanghai University & Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People’s Hospital, Wenzhou, People’s Republic of China
| | - Yinai Liu
- Institute of Life Sciences, College of Life and Environmental Science, Wenzhou University, Wenzhou, People’s Republic of China
| | - Jiawen Wang
- Department of Plastic Surgery, The Third Affiliated Hospital of Shanghai University & Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People’s Hospital, Wenzhou, People’s Republic of China
| | - Wang Lv
- Department of Emergency, The Third Affiliated Hospital of Shanghai University & Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People’s Hospital, Wenzhou, People’s Republic of China
| | - Renyi Peng
- Institute of Life Sciences, College of Life and Environmental Science, Wenzhou University, Wenzhou, People’s Republic of China
- Correspondence: Renyi Peng, Tel +86 159-5771-6937, Email
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46
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Zhou J, Dong C, Shu Q, Chen Y, Wang Q, Wang D, Ma G. Deciphering the focuses and trends in skin regeneration research through bibliometric analyses. Front Med (Lausanne) 2022; 9:947649. [PMID: 35935762 PMCID: PMC9355679 DOI: 10.3389/fmed.2022.947649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/07/2022] [Indexed: 01/03/2023] Open
Abstract
Increasing attention to skin regeneration has rapidly broadened research on the topic. However, no bibliometric analysis of the field’s research trends has yet been conducted. In response to this research gap, this study analyzed the publication patterns and progress of skin regeneration research worldwide using a bibliometric analysis of 1,471 papers comprising 1,227 (83.4%) original articles and 244 (16.6%) reviews sourced from a Web of Science search. Publication distribution was analyzed by country/region, institution, journal, and author. The frequency of keywords was assessed to prepare a bibliometric map of the development trends in skin regeneration research. China and the United States were the most productive countries in the field: China had the greatest number of publications at 433 (29.4%) and the United States had the highest H-index ranking (59 with 15,373 citations or 31.9%). Author keywords were classified into four clusters: stem cell, biomaterial, tissue engineering, and wound dressing. “Stem cells,” “chitosan,” “tissue engineering,” and “wound dressings” were the most frequent keywords in each cluster; therefore, they reflected the field’s current focus areas. “Immunomodulation,” “aloe vera,” “extracellular vesicles,” “injectable hydrogel,” and “three-dimensional (3D) bioprinting” were relatively new keywords, indicating that biomaterials for skin regeneration and 3D bioprinting are promising research hotspots in the field. Moreover, clinical studies on new dressings and techniques to accelerate skin regeneration deserve more attention. By uncovering current and future research hotspots, this analysis offers insights that may be useful for both new and experienced scholars striving to expand research and innovation in the field of skin regeneration.
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Affiliation(s)
- Jian Zhou
- Savaid Stomatology School, Hangzhou Medical College, Hangzhou, China
- Department of Prosthodontics, Xi’an Savaid Stomatology Hospital, Xi’an, China
| | - Chen Dong
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Qiuju Shu
- Department of Prosthodontics, Xi’an Savaid Stomatology Hospital, Xi’an, China
| | - Yang Chen
- Clinic of Dental Experts, Xi’an Savaid Stomatology Hospital, Xi’an, China
| | - Qing Wang
- Department of Prosthodontics, Xi’an Savaid Stomatology Hospital, Xi’an, China
| | - Dandan Wang
- Department of Prosthodontics, Xi’an Savaid Stomatology Hospital, Xi’an, China
| | - Ge Ma
- Department of Oral and Maxillofacial Surgery, Xi’an Daxing Hospital, Xi’an, China
- *Correspondence: Ge Ma,
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47
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Advances in Fibrin-Based Materials in Wound Repair: A Review. Molecules 2022; 27:molecules27144504. [PMID: 35889381 PMCID: PMC9322155 DOI: 10.3390/molecules27144504] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 11/29/2022] Open
Abstract
The first bioprocess that occurs in response to wounding is the deterrence of local hemorrhage. This is accomplished by platelet aggregation and initiation of the hemostasis cascade. The resulting blood clot immediately enables the cessation of bleeding and then functions as a provisional matrix for wound healing, which begins a few days after injury. Here, fibrinogen and fibrin fibers are the key players, because they literally serve as scaffolds for tissue regeneration and promote the migration of cells, as well as the ingrowth of tissues. Fibrin is also an important modulator of healing and a host defense system against microbes that effectively maintains incoming leukocytes and acts as reservoir for growth factors. This review presents recent advances in the understanding and applications of fibrin and fibrin-fiber-incorporated biomedical materials applied to wound healing and subsequent tissue repair. It also discusses how fibrin-based materials function through several wound healing stages including physical barrier formation, the entrapment of bacteria, drug and cell delivery, and eventual degradation. Pure fibrin is not mechanically strong and stable enough to act as a singular wound repair material. To alleviate this problem, this paper will demonstrate recent advances in the modification of fibrin with next-generation materials exhibiting enhanced stability and medical efficacy, along with a detailed look at the mechanical properties of fibrin and fibrin-laden materials. Specifically, fibrin-based nanocomposites and their role in wound repair, sustained drug release, cell delivery to wound sites, skin reconstruction, and biomedical applications of drug-loaded fibrin-based materials will be demonstrated and discussed.
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Kim S, Lee HY, Lee HR, Jang JY, Yun JH, Shin YS, Kim CH. Liquid-type plasma-controlled in situ crosslinking of silk-alginate injectable gel displayed better bioactivities and mechanical properties. Mater Today Bio 2022; 15:100321. [PMID: 35757030 PMCID: PMC9214807 DOI: 10.1016/j.mtbio.2022.100321] [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: 04/13/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 12/02/2022]
Abstract
Silk is a promising biomaterial for injectable hydrogel, but its long-gelation time and cytotoxic crosslinking methods are the main obstacles for clinical application. Here, we purpose a new in situ crosslinking technique of silk-alginate (S-A) injectable hydrogel using liquid-type non-thermal atmospheric plasma (LTP) in vocal fold (VF) wound healing. We confirmed that LTP induces the secondary structure of silk in a dose-dependent manner, resulting in improved mechanical properties. Significantly increased crosslinking of silk was observed with reduced gelation time. Moreover, controlled release of nitrate, an LTP effectors, from LTP-treated S-A hydrogel was detected over 7 days. In vitro experiments regarding biocompatibility showed activation of fibroblasts beyond the non-cytotoxicity of LTP-treated S-A hydrogels. An in vivo animal model of VF injury was established in New Zealand White rabbits. Full-thickness injury was created on the VF followed by hydrogel injection. In histologic analyses, LTP-treated S-A hydrogels significantly reduced a scar formation and promoted favorable wound healing. Functional analysis using videokymography showed eventual viscoelastic recovery. The LTP not only changes the mechanical structures of a hydrogel, but also has sustained biochemical effects on the damaged tissue due to controlled release of LTP effectors, and that LTP-treated S-A hydrogel can be used to enhance wound healing after VF injury.
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Affiliation(s)
- Sungryeal Kim
- Department of Otolaryngology, College of Medicine, Inha University, Incheon, South Korea.,Department of Medical Sciences, Graduate School of Ajou University, Suwon, South Korea
| | - Hye-Young Lee
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea
| | - Hye Ran Lee
- Department of Otorhino-laryngology-Head and Neck Surgery, Catholic Kwandong University, College of Medicine, Incheon, South Korea
| | - Jeon Yeob Jang
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea
| | - Ju Hyun Yun
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea
| | - Yoo Seob Shin
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea
| | - Chul-Ho Kim
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea
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49
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Utami Nike D, Md Fadilah NI, Sallehuddin N, Nor Azlan AYH, Imran FH, Maarof M, Fauzi MB. Genipin-Crosslinking Effects on Biomatrix Development for Cutaneous Wound Healing: A Concise Review. Front Bioeng Biotechnol 2022; 10:865014. [PMID: 35677301 PMCID: PMC9169157 DOI: 10.3389/fbioe.2022.865014] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/15/2022] [Indexed: 12/17/2022] Open
Abstract
Split skin graft (SSG), a standard gold treatment for wound healing, has numerous limitations such as lack of fresh skin to be applied, tedious process, severe scarring, and keloid formation followed by higher risks of infection. Thus, there is a gap in producing polymeric scaffolds as an alternative for wound care management. Bioscaffold is the main component in tissue engineering technology that provides porous three-dimensional (3D) microarchitecture for cells to survive. Upon skin tissue reconstruction, the 3D-porous structure ensures sufficient nutrients and gaseous diffusion and cell penetration that improves cell proliferation and vascularization for tissue regeneration. Hence, it is highly considered a promising candidate for various skin wound healing applications. To date, natural-based crosslinking agents have been extensively used to tailor the physicochemical and mechanical properties of the skin biomatrix. Genipin (GNP) is preferable to other plant-based crosslinkers due to its biological activities, such as antiinflammatory and antioxidant, which are key players to boost skin wound healing. In addition, it has shown a noncytotoxic effect and is biocompatible with human skin cells. This review validated the effects of GNP in biomatrix fabrication for skin wound healing from the last 7 years of established research articles and stipulated the biomaterial development-scale point of view. Lastly, the possible role of GNP in the skin wound healing cascade is also discussed. Through the literature output, it can be concluded that GNP has the capability to increase the stability of biomatrix and maintain the skin cells viability, which will contribute in accelerating wound healing.
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Affiliation(s)
- Dewi Utami Nike
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nur Izzah Md Fadilah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nusaibah Sallehuddin
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ahmad Yasser Hamdi Nor Azlan
- Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, Malaysia
| | - Farrah Hani Imran
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Manira Maarof
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- *Correspondence: Mh Busra Fauzi,
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Kaur G, Narayanan G, Garg D, Sachdev A, Matai I. Biomaterials-Based Regenerative Strategies for Skin Tissue Wound Healing. ACS APPLIED BIO MATERIALS 2022; 5:2069-2106. [PMID: 35451829 DOI: 10.1021/acsabm.2c00035] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Skin tissue wound healing proceeds through four major stages, including hematoma formation, inflammation, and neo-tissue formation, and culminates with tissue remodeling. These four steps significantly overlap with each other and are aided by various factors such as cells, cytokines (both anti- and pro-inflammatory), and growth factors that aid in the neo-tissue formation. In all these stages, advanced biomaterials provide several functional advantages, such as removing wound exudates, providing cover, transporting oxygen to the wound site, and preventing infection from microbes. In addition, advanced biomaterials serve as vehicles to carry proteins/drug molecules/growth factors and/or antimicrobial agents to the target wound site. In this review, we report recent advancements in biomaterials-based regenerative strategies that augment the skin tissue wound healing process. In conjunction with other medical sciences, designing nanoengineered biomaterials is gaining significant attention for providing numerous functionalities to trigger wound repair. In this regard, we highlight the advent of nanomaterial-based constructs for wound healing, especially those that are being evaluated in clinical settings. Herein, we also emphasize the competence and versatility of the three-dimensional (3D) bioprinting technique for advanced wound management. Finally, we discuss the challenges and clinical perspective of various biomaterial-based wound dressings, along with prospective future directions. With regenerative strategies that utilize a cocktail of cell sources, antimicrobial agents, drugs, and/or growth factors, it is expected that significant patient-specific strategies will be developed in the near future, resulting in complete wound healing with no scar tissue formation.
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Affiliation(s)
- Gurvinder Kaur
- Materials Science and Sensor Applications, Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Ganesh Narayanan
- Fiber and Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Deepa Garg
- Materials Science and Sensor Applications, Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Abhay Sachdev
- Materials Science and Sensor Applications, Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Ishita Matai
- Department of Biotechnology, School of Biological Sciences, Amity University Punjab, Mohali 140306, India
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