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Pulat G, Çelebi NN, Bilgiç E. The Effect of Immobilization Methods of P9-4 Antimicrobial Peptide Onto Gelatin Methacrylate on Multidrug-Resistant Bacteria: A Comparative Study. Macromol Biosci 2024:e2400324. [PMID: 39230389 DOI: 10.1002/mabi.202400324] [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: 07/09/2024] [Revised: 08/01/2024] [Indexed: 09/05/2024]
Abstract
Wound dressings play a crucial role in wound management by providing a protective barrier and creating an optimal environment for healing. Photocrosslinkable hydrogels, such as gelatin methacrylate (GelMA), have gained attention for their unique properties but often lack antimicrobial activity. To enhance their effectiveness, researchers are exploring methods to incorporate antimicrobial agents into photocrosslinkable hydrogel dressings. Immobilization of antimicrobial peptides (AMPs) onto hydrogel matrices may be achieved through physical or chemical methods. Although, chemical immobilization, using techniques like EDC/NHS chemistry, has shown promise in enhancing antimicrobial properties of hydrogels, the capacity for immobilization may be limited by the structure of hydrogel. Physical methods, such as immersing, offer alternatives but may have different efficacy and biocompatibility. The study aims to chemically immobilize GelMA with P9-4 AMP by photoinduced conjugation and EDC/NHS chemistry and compare its antimicrobial efficacy with a physical immobilization method. Chemical immobilization by EDC/NHS chemistry significantly enhances the antimicrobial effect of GelMA hydrogels against multi-drug resistant Psuedomonas aeruginosa (MDR P. aeruginosa) and methicillin-resistant Staphylococcus aureus (MRSA) while maintaining favorable biocompatibility. Study highlights the potential of AMP-functionalized GelMA as advanced wound dressings for reducing infections caused by antibiotic-resistant bacteria and offers a promising approach for future research in wound management.
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Affiliation(s)
- Günnur Pulat
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Nisa Nilsu Çelebi
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Eda Bilgiç
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey
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2
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Luz ECG, da Silva TF, Marques LSM, Andrade A, Lorevice MV, Andrade FK, Yang L, de Souza Filho AG, Faria AF, Silveira Vieira R. Bacteria-Derived Cellulose Membranes Modified with Graphene Oxide-Silver Nanoparticles for Accelerating Wound Healing. ACS APPLIED BIO MATERIALS 2024; 7:5530-5540. [PMID: 39093994 PMCID: PMC11337152 DOI: 10.1021/acsabm.4c00650] [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: 05/10/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
This study reports on the modification of bacterial cellulose (BC) membranes produced by static fermentation of Komagataeibacter xylinus bacterial strains with graphene oxide-silver nanoparticles (GO-Ag) to yield skin wound dressings with improved antibacterial properties. The GO-Ag sheets were synthesized through chemical reduction with sodium citrate and were utilized to functionalize the BC membranes (BC/GO-Ag). The BC/GO-Ag composites were characterized to determine their surface charge, morphology, exudate absorption, antimicrobial activity, and cytotoxicity by using fibroblast cells. The antimicrobial activity of the wound dressings was assessed against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. The results indicate that the BC/GO-Ag dressings can inhibit ∼70% of E. coli cells. Our findings also revealed that the porous BC/GO-Ag antimicrobial dressings can efficiently retain 94% of exudate absorption after exposure to simulated body fluid (SBF) for 24 h. These results suggest that the dressings could absorb excess exudate from the wound during clinical application, maintaining adequate moisture, and promoting the proliferation of epithelial cells. The BC/GO-Ag hybrid materials exhibited excellent mechanical flexibility and low cytotoxicity to fibroblast cells, making excellent wound dressings able to control bacterial infectious processes and promote the fast healing of dermal lesions.
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Affiliation(s)
| | - Thamyres Freire da Silva
- Department
of Chemical Engineering, Federal University
of Ceará (UFC), Fortaleza, Ceará 60455-760, Brazil
| | | | - Alexandre Andrade
- Department
of Pathology and Forensic Medicine, Federal
University of Ceará (UFC), Fortaleza, Ceará 60430-160, Brazil
| | - Marcos Vinicius
V Lorevice
- Brazilian
Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | - Fabia Karine Andrade
- Department
of Chemical Engineering, Federal University
of Ceará (UFC), Fortaleza, Ceará 60455-760, Brazil
| | - Liu Yang
- Department
of Environmental Engineering Sciences, University
of Florida, Gainesville, Florida 32611-6540, United States
| | | | - Andreia F. Faria
- Department
of Environmental Engineering Sciences, University
of Florida, Gainesville, Florida 32611-6540, United States
| | - Rodrigo Silveira Vieira
- Department
of Chemical Engineering, Federal University
of Ceará (UFC), Fortaleza, Ceará 60455-760, Brazil
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3
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Youn S, Ki MR, Abdelhamid MAA, Pack SP. Biomimetic Materials for Skin Tissue Regeneration and Electronic Skin. Biomimetics (Basel) 2024; 9:278. [PMID: 38786488 PMCID: PMC11117890 DOI: 10.3390/biomimetics9050278] [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: 03/20/2024] [Revised: 04/26/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
Biomimetic materials have become a promising alternative in the field of tissue engineering and regenerative medicine to address critical challenges in wound healing and skin regeneration. Skin-mimetic materials have enormous potential to improve wound healing outcomes and enable innovative diagnostic and sensor applications. Human skin, with its complex structure and diverse functions, serves as an excellent model for designing biomaterials. Creating effective wound coverings requires mimicking the unique extracellular matrix composition, mechanical properties, and biochemical cues. Additionally, integrating electronic functionality into these materials presents exciting possibilities for real-time monitoring, diagnostics, and personalized healthcare. This review examines biomimetic skin materials and their role in regenerative wound healing, as well as their integration with electronic skin technologies. It discusses recent advances, challenges, and future directions in this rapidly evolving field.
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Affiliation(s)
- Sol Youn
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; (S.Y.); (M.A.A.A.)
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; (S.Y.); (M.A.A.A.)
- Institute of Industrial Technology, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea
| | - Mohamed A. A. Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; (S.Y.); (M.A.A.A.)
- Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Seung-Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; (S.Y.); (M.A.A.A.)
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4
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Kulatunge DR, Jayawardana KH, Abeysekera AM, Wijeyaratne SC, Gunaherath GMKB. In-vitro cell migration enhancing constituents from Decalepis hamiltonii, a plant used in the preparation of 'Pinda oil', a medicinal oil used in Ayurveda for wound management. Nat Prod Res 2024:1-7. [PMID: 38235612 DOI: 10.1080/14786419.2024.2305220] [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: 09/07/2023] [Accepted: 01/05/2024] [Indexed: 01/19/2024]
Abstract
Decalepis hamiltonii, Wight & Arn. (Apocyanaceae) is a one of the raw materials used in the preparation of 'Pinda oil', a medicinal oil which is used for treatment of wounds in Ayurveda. Of the hexanes, dichloromethane, and ethyl acetate extracts derived from the plant raw materials used to prepare 'Pinda oil', the hexanes extract of D. hamiltonii exhibited the highest mean percentage wound closure (75.1 ± 2.9) compared to the negative controls (1% DMSO in DMEM, 4.2 ± 1.2 and 100% DMEM, 4.1 ± 0.9) in the scratch wound assay (SWA). Fractionation of the hexanes extract of stem of D. hamiltonii led to the isolation of 2-hydroxy-4-methoxybenzaldehyde (1) and a mixture of long chain esters of lupeol (2), which showed enhanced cell migration in SWA. It was observed that the esters of lupeol bind to the cell membrane and/or enter the cells during the SWA. It was found that these constituents are also present in 'Pinda oil' which may contribute to the enhancement of wound healing activity of 'Pinda oil'.
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Affiliation(s)
- D R Kulatunge
- Department of Chemistry, The Open University of Sri Lanka, Nugegoda, Sri Lanka
| | | | - Ajita M Abeysekera
- Department of Chemistry, Sri Jayewardenepura University, Nugegoda, Sri Lanka
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Hajishoreh NK, Jamalpoor Z, Rasouli R, Asl AN, Sheervalilou R, Akbarzadeh A. The recent development of carbon-based nanoparticles as a novel approach to skin tissue care and management - A review. Exp Cell Res 2023; 433:113821. [PMID: 37858837 DOI: 10.1016/j.yexcr.2023.113821] [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: 08/24/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 10/21/2023]
Abstract
Since the skin is the first barrier of the body's defense against pathogens, delays in the healing process are affected by infections. Therefore, applying advanced substitute assistance improves the patient's quality of life. Carbon-based nanomaterials show better capabilities than conventional methods for managing skin wound infections. Due to their physicochemical properties such as small size, large surface area, great surface-to-volume ratio, and excellent ability to communicate with the cells and tissue, carbon-based nanoparticles have been considered in regenerative medicine. moreover, the carbon nano family offers attractive potential in wound healing via the improvement of angiogenesis and antibacterial compared to traditional approaches become one of the particular research interests in the field of skin tissue engineering. This review emphasizes the wound-healing process and the role of carbon-based nanoparticles in wound care management interaction with tissue engineering technology.
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Affiliation(s)
| | - Zahra Jamalpoor
- Trauma research center, Aja University of Medical Sciences, Tehran, Iran.
| | - Ramin Rasouli
- Health Research Center Chamran Hospital, Tehran, Iran.
| | - Amir Nezami Asl
- Health Research Center Chamran Hospital, Tehran, Iran; Trauma research center, Aja University of Medical Sciences, Tehran, Iran.
| | - Roghayeh Sheervalilou
- Pharmacology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Abolfazl Akbarzadeh
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Balakirski G, Becker SL, Hartmann D, Kofler L, Kunte C, Müller CSL, Volz T, Kendziora B, Schlager JG, Löser CR. Perioperative Antibiotikaprophylaxe in der Dermatochirurgie - Positionspapier der Arbeitsgruppe Antibiotic Stewardship der Deutschen Gesellschaft für Dermatochirurgie (DGDC), Teil 2: Spezielle Indikationen und Situationen. J Dtsch Dermatol Ges 2023; 21:1109-1119. [PMID: 37845076 DOI: 10.1111/ddg.15153_g] [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: 12/27/2022] [Accepted: 05/18/2023] [Indexed: 10/18/2023]
Abstract
ZusammenfassungNeben der Vermeidung postoperativer Wundinfektionen nach dermatochirurgischen Eingriffen hat die perioperative Antibiotikaprophylaxe (PAP) das Ziel, das Auftreten weiterer postoperativer Infektionskomplikationen, insbesondere der bakteriellen Endokarditis oder hämatogener Gelenkprotheseninfektionen, zu verhindern. In der vorliegenden Arbeit werden spezielle Situationen dargestellt, in denen eine PAP notwendig werden kann. So benötigen Patienten nach Herzklappenersatz jeglicher Art, einschließlich Transkatheter‐Klappenersatz oder bei Verwendung von Prothesenmaterial zur Herzklappenkorrektur, oder Patienten nach einer durchgemachten bakteriellen Endokarditis bei zweizeitigen dermatochirurgischen Eingriffen, Eingriffen an der Schleimhaut oder ulzerierten Tumoren eine PAP.Auch die Anwendung einer PAP in speziellen Situationen wie bei sekundärer Wundheilung, septischen dermatochirurgischen Eingriffen oder Ulcus cruris‐Chirurgie werden in dieser Arbeit anhand der aktuellen wissenschaftlichen Literatur ausführlich dargestellt und diskutiert. Die vorliegende Arbeit ist der 2. Teil des Positionspapiers der Arbeitsgruppe Antibiotic Stewardship der Deutschen Gesellschaft für Dermatochirurgie und formuliert evidenzbasierte Empfehlungen für die Verabreichung einer PAP bei dermatochirurgischen Eingriffen bei speziellen Indikationen und Situationen. Dies ist von besonderer Wichtigkeit, da bei dermatochirurgischen Eingriffen, wie im ersten Teil dargelegt, im Regelfall auf eine PAP verzichtet werden kann und sollte.
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Affiliation(s)
- Galina Balakirski
- Zentrum für Dermatologie, Allergologie und Dermatochirurgie, Helios Universitätsklinikum Wuppertal, Universität Witten/Herdecke, Wuppertal
| | - Sören L Becker
- Institut für Medizinische Mikrobiologie und Hygiene, Universitätsklinikum des Saarlandes, Homburg/Saar
| | - Daniela Hartmann
- Klinik und Poliklinik für Dermatologie und Allergologie, Ludwig-Maximilians-Universität München, München
| | - Lukas Kofler
- Universitäts-Hautklinik, Universitätsklinikum Tübingen, Tübingen
| | - Christian Kunte
- Dermatochirurgie und Dermatologie, Artemed Fachklinik München GmbH & Co. KG, München
| | | | - Thomas Volz
- Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein, Technische Universität München, München
| | - Benjamin Kendziora
- Klinik und Poliklinik für Dermatologie und Allergologie, Ludwig-Maximilians-Universität München, München
| | - Justin Gabriel Schlager
- Klinik und Poliklinik für Dermatologie und Allergologie, Ludwig-Maximilians-Universität München, München
| | - Christoph R Löser
- Hautklinik, Hauttumorzentrum, Klinikum der Stadt Ludwigshafen am Rhein gGmbH, Ludwigshafen
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7
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Balakirski G, Becker SL, Hartmann D, Kofler L, Kunte C, Müller CSL, Volz T, Kendziora B, Schlager JG, Löser CR. Perioperative antibiotic prophylaxis in skin surgery - Position paper of the Antibiotic Stewardship working group of the German Society for Dermatologic Surgery (DGDC), Part 2: Special indications and situations. J Dtsch Dermatol Ges 2023; 21:1109-1117. [PMID: 37501398 DOI: 10.1111/ddg.15153] [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: 12/27/2022] [Accepted: 05/18/2023] [Indexed: 07/29/2023]
Abstract
In addition to prevention of surgical site infections after skin surgery, perioperative antibiotic prophylaxis (PAP) aims to prevent the occurrence of other postoperative infectious complications, especially bacterial endocarditis and hematogenous joint prosthesis infections. This article discusses specific indications for the use of PAP. For example, patients who have undergone any type of heart valve replacement, including transcatheter valve replacement or use of prosthetic material to correct the heart valve, or patients who have experienced bacterial endocarditis, require PAP during skin surgery on mucosal membranes or ulcerated tumors. The use of PAP in special situations such as secondary wound healing, septic dermatosurgery or ulcer surgery is also presented and discussed in detail in this paper based on the current scientific literature. This paper represents the second part of the position paper of the Antibiotic Stewardship Working Group of the German Society for Dermatologic Surgery (DGDC) and summarizes evidence-based recommendations for the administration of PAP during skin surgery for special indications and situations. This is particularly important because, as detailed in Part 1 of this position paper, PAP can and usually should be avoided in skin surgery.
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Affiliation(s)
- Galina Balakirski
- Center for Dermatology, Allergology and Dermatosurgery, Helios University Hospital Wuppertal, University of Witten/Herdecke, Wuppertal, Germany
| | - Sören L Becker
- Institute of Medical Microbiology and Hygiene, Saarland University, Homburg, Germany
| | - Daniela Hartmann
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Lukas Kofler
- Department of Dermatology, University of Tübingen, Tübingen, Germany
| | - Christian Kunte
- Department of Dermatologic Surgery and Dermatology, Artemed Clinic Munich, Munich, Germany
| | - Cornelia S L Müller
- Medical Supply Center for Histology, Cytology, and Molecular Diagnostics Trier, Trier, Germany
| | - Thomas Volz
- Department of Dermatology and Allergology, University Medical Center, Technical University of Munich, Munich, Germany
| | - Benjamin Kendziora
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Justin Gabriel Schlager
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Christoph R Löser
- Department of Dermatology, Ludwigshafen City Hospital, Ludwigshafen, Germany
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8
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Zhang P, Xu X, He W, Li H, Huang Y, Wu G. Autocatalytically hydroxyl-producing composite wound dressing for bacteria-infected wound healing. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 51:102683. [PMID: 37105341 DOI: 10.1016/j.nano.2023.102683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/30/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023]
Abstract
The creation of wound dressings with low drug resistance and broad-spectrum antibacterial capability is a key topic of scientific interest. To achieve this, a bactericidal wound dressing with the capacity to autocatalytically produce hydroxyl radicals (OH) was developed. The wound dressing was an electrospun PCL/gelatin/glucose composite fiber mesh (PGD) with functional iron-containing metal-organic framework (Fe-MOF) nanozymes. These functional nanozymes (G@Fe) were formed by coupling glucose oxidase (GOx) and Fe-MOF through amide bonds. These nanozymes enabled the conversion of glucose released from the PGD composite mesh into hydroxyl radicals via an autocatalytic cascade reaction to destroy bacteria. The antibacterial efficiency of wound dressings and their stimulation of tissue regeneration were assessed using a MRSA-infected skin wound infection model on the back of SD mice. The G@Fe/PGD wound dressing exhibited improved wound healing capacity and had comparable biosafety to commercial silver-containing dressings, suggesting a potential replacement in the future.
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Affiliation(s)
- Pinrui Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, PR China; Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Xiaomu Xu
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, PR China
| | - Wangmei He
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, PR China
| | - Hong Li
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, PR China
| | - Yue Huang
- School of Stomatology, Jinan University, Guangzhou 510632, PR China.
| | - Gang Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, PR China; Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, PR China.
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9
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Mansour RN, Hasanzadeh E, Abasi M, Gholipourmalekabadi M, Mellati A, Enderami SE. The Effect of Fetal Bovine Acellular Dermal Matrix Seeded with Wharton's Jelly Mesenchymal Stem Cells for Healing Full-Thickness Skin Wounds. Genes (Basel) 2023; 14:genes14040909. [PMID: 37107668 PMCID: PMC10138153 DOI: 10.3390/genes14040909] [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: 03/05/2023] [Revised: 03/23/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
The treatment of full-thickness skin wounds is a problem in the clinical setting, as they do not heal spontaneously. Extensive pain at the donor site and a lack of skin grafts limit autogenic and allogeneic skin graft availability. We evaluated fetal bovine acellular dermal matrix (FADM) in combination with human Wharton's jelly mesenchymal stem cells (hWJ-MSCs) to heal full-thickness skin wounds. FADM was prepared from a 6-month-old trauma-aborted fetus. WJ-MSCs were derived from a human umbilical cord and seeded on the FADM. Rat models of full-thickness wounds were created and divided into three groups: control (no treatment), FADM, and FADM-WJMSCs groups. Wound treatment was evaluated microscopically and histologically on days 7, 14, and 21 post-surgery. The prepared FADM was porous and decellularized with a normal range of residual DNA. WJ-MSCs were seeded and proliferated on FADM effectively. The highest wound closure rate was observed in the FADM-WJMSC group on days 7 and 14 post-surgery. Furthermore, this group had fewer inflammatory cells than other groups. Finally, in this study, we observed that, without using the differential cell culture media of fibroblasts, the xenogeneic hWJSCs in combination with FADM could promote an increased rate of full-thickness skin wound closure with less inflammation.
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Affiliation(s)
- Reyhaneh Nassiri Mansour
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari 4815733971, Iran
| | - Elham Hasanzadeh
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari 4815733971, Iran
| | - Mozhgan Abasi
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari 4815733971, Iran
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran 1449614535, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran 1449614535, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran 1449614535, Iran
| | - Amir Mellati
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari 4815733971, Iran
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari 4815733971, Iran
| | - Seyed Ehsan Enderami
- Immunogenetics Research Center, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari 4815733971, Iran
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10
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Zhang M, Fan Z, Zhang J, Yang Y, Huang C, Zhang W, Ding D, Liu G, Cheng N. Multifunctional chitosan/alginate hydrogel incorporated with bioactive glass nanocomposites enabling photothermal and nitric oxide release activities for bacteria-infected wound healing. Int J Biol Macromol 2023; 232:123445. [PMID: 36709818 DOI: 10.1016/j.ijbiomac.2023.123445] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/22/2022] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
It is highly desirable to develop novel multifunctional wound dressing materials capable of delivering active molecules capable of resolving bacterial infections and replenishment of appropriate growth factors for bacteria-infected wound healing. Polysaccharides have numerous biomedical benefits and have been widely used to construct biomaterial scaffolds. Herein, multifunctional chitosan/alginate hydrogel decorated with β-cyclodextrin (β-CD) modified polydopamine (PDA)-bioactive glass (BG) nanoparticles (NPs) integrating photothermal performance and nitric-oxide release activities for the treatment of bacterially infected wounds is presented. As the NO precursor N,N'-di-sec-butyl-N,N'-dinitroso-1,4-phenylenediamine (BNN6) encapsulated into the hydrophobic cavity of β-CD on the PDA-coated BG NPs, the resultant NO@CD-PDA/BG NPs, are imparted with the feature of NIR triggered NO release and desired PTT/NO synergetic antibacterial effects. Furthermore, the release of NO, Ca, and Si ions from the NO@CD-PDA/BG NPs, has the benefit of regulating inflammation, promoting fibroblast proliferation, and stimulating angiogenesis. Besides, the chitosan/alginate hydrogel scaffolds provided a suitable microenvironment to accelerate wound healing. By applying the multifunctional chitosan/alginate nanocomposite hydrogel to S. aureus-infected full-thickness skin defect mouse model, the authors demonstrated that chitosan/alginate nanocomposite hydrogel has multiple functions in preventing bacterial infections, accelerating angiogenesis and wound regeneration, indicating promising application in wound healing.
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Affiliation(s)
- Man Zhang
- College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, PR China
| | - Zunqing Fan
- Department of Clinical Medicine, Weifang Medical University, Weifang, Shandong 261053, PR China; Shandong Provincial Hospital for Skin Diseases, Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong 250000, PR China
| | - Jie Zhang
- Shandong Boyuan Pharmaceutical & Chemical Co., Ltd., North of XinSha Road, West of Dajiu Road, Houzhen Industrial Zone, Shouguang City, Shandong 262725, PR China
| | - Yilei Yang
- College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, PR China
| | - Changbao Huang
- College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, PR China
| | - Weifen Zhang
- College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, PR China
| | - Dejun Ding
- College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, PR China.
| | - Guoyan Liu
- Shandong Provincial Hospital for Skin Diseases, Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong 250000, PR China.
| | - Ni Cheng
- College of Pharmacy, Weifang Medical University, Weifang, Shandong 261053, PR China.
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11
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Afzal S, Barkat K, Ashraf MU, Khalid I, Mehmood Y, Shah NH, Badshah SF, Naeem S, Khan SA, Kazi M. Formulation and Characterization of Polymeric Cross-Linked Hydrogel Patches for Topical Delivery of Antibiotic for Healing Wound Infections. Polymers (Basel) 2023; 15:polym15071652. [PMID: 37050266 PMCID: PMC10096797 DOI: 10.3390/polym15071652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 03/29/2023] Open
Abstract
Wound healing faces significant challenges in clinical settings. It often contains a series of dynamic and complex physiological healing processes. Instead of creams, ointments and solutions, alternative treatment approaches are needed. The main objective of the study was to formulate bacitracin zinc-loaded topical patches as a new therapeutic agent for potential wound healing. A free radical polymerization technique was optimized for synthesis. Polyethylene glycol-8000 (PEG-8000) was chemically cross-linked with acrylic acid in aqueous medium, using Carbopol 934 as a permeation enhancer and tween 80 as surfactant. Ammonium persulfate and N,N’-Methylenebisacrylamide (MBA) were utilized as initiator and cross-linker. FTIR, DSC, TGA, and SEM were performed, and patches were evaluated for swelling dynamics, sol-gel analysis, in vitro drug release in various media. A Franz diffusion cell was used for the permeation study. Irritation and wound healing with the drug-loaded patches were also studied. The characterization studies confirmed the formation of a cross-linked hydrogel network. The highest swelling and drug release were observed in formulations containing highest Polyethylene glycol-8000 and lowest N,N’-Methylenebisacrylamide concentrations. The pH-sensitive behavior of patches was also confirmed as more swelling, drug release and drug permeation across skin were observed at pH 7.4. Fabricated patches showed no sign of irritation or erythema as evaluated by the Draize scale. Faster wound healing was also observed with fabricated patches compared to marketed formulations. Therefore, such a polymeric network can be a promising technology for speeding up wound healing and minor skin injuries through enhanced drug deposition.
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Affiliation(s)
- Sana Afzal
- Faculty of Pharmacy, University of Lahore, Lahore 54590, Pakistan
| | - Kashif Barkat
- Faculty of Pharmacy, University of Lahore, Lahore 54590, Pakistan
- Correspondence: (K.B.); (S.A.K.)
| | | | - Ikrima Khalid
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Yasir Mehmood
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | | | | | - Saba Naeem
- Faculty of Pharmacy, University of Lahore, Lahore 54590, Pakistan
| | - Saeed Ahmad Khan
- Department of Pharmacy, Kohat University of Science and Technology, Kohat 26000, Pakistan
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
- Correspondence: (K.B.); (S.A.K.)
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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12
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Zhang Y, Demir B, Bertsch G, Qiao M. Zwitterion and N-halamine functionalized cotton wound dressing with enhanced antifouling, antibacterial, and hemostatic properties. Int J Biol Macromol 2023; 230:123121. [PMID: 36610571 DOI: 10.1016/j.ijbiomac.2022.123121] [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: 10/10/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023]
Abstract
With emerging needs of wound care management, a multi-functional wound dressing is needed. To prevent infection and reduce patient suffering, antibacterial efficacy against a broad-spectrum of bacteria plus robust antifouling are among the most preferred properties. In this study, a wound dressing was created with antibacterial and anti-fouling capabilities is presented. The approaches used a synthesized tri-functional copolymer comprised of an N-halamine precursor moiety, a marine-inspired surface binding dopamine moiety, and a zwitterionic anti-adhesion moiety bonded onto a commercial cotton gauze. The resulting HaloCare™ wound dressing demonstrated >99.99 % inactivation within 5 min against E. coli and a panel of ESKAPE pathogens plus achieved 98.77 % reduction of non-specific protein binding. HaloCare was also shown to be compatible with hemostatic agents without impacting hemostatic efficacy. HaloCare shows great potential particularly in traumatic injury events as an infection preventing and hemostatic wound management system.
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Affiliation(s)
- Yidan Zhang
- Halomine Inc., 95 Brown Rd., Ithaca, NY, United States of America
| | - Buket Demir
- Halomine Inc., 95 Brown Rd., Ithaca, NY, United States of America
| | - Gregory Bertsch
- Halomine Inc., 95 Brown Rd., Ithaca, NY, United States of America
| | - Mingyu Qiao
- Halomine Inc., 95 Brown Rd., Ithaca, NY, United States of America.
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13
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Acceleration of Wound Healing in Rats by Modified Lignocellulose Based Sponge Containing Pentoxifylline Loaded Lecithin/Chitosan Nanoparticles. Gels 2022; 8:gels8100658. [PMID: 36286159 PMCID: PMC9601342 DOI: 10.3390/gels8100658] [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: 09/12/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/04/2022] Open
Abstract
Dressing wounds accelerates the re-epithelialization process and changes the inflammatory environment towards healing. In the current study, a lignocellulose sponge containing pentoxifylline (PTX)-loaded lecithin/chitosan nanoparticles (LCNs) was developed to enhance the wound healing rate. Lecithin/chitosan nanoparticles were obtained by the solvent-injection method and characterized in terms of morphology, particle size distribution, and zeta potential. The lignocellulose hydrogels were functionalized through oxidation/amination and freeze-dried to obtain sponges. The prepared sponge was then loaded with LCNs/PTX to control drug release. The nanoparticle containing sponges were characterized using FTIR and SEM analysis. The drug release study from both nanoparticles and sponges was performed in PBS at 37 °C at different time points. The results demonstrated that PTX has sustained release from lignocellulose hydrogels. The wound healing was examined using a standard rat model. The results exhibited that PTX loaded hydrogels could achieve significantly accelerated and enhanced healing compared to the drug free hydrogels and the normal saline treatment. Histological examination of the healed skin confirmed the visual observations. Overall speaking, the in vivo assessment of the developed sponge asserts its suitability as wound dressing for treatment of chronic skin wounds.
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14
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Malayeri A, Abdevand ZZ, Rashedi M, Hamedi SS, Basir Z, Golfakhrabadi F. Determination of the Effectiveness of Topical Product of Commiphora Mukul Oleo Gum Resin on Dermal Wound Healing: An Experimental Study. INT J LOW EXTR WOUND 2022:15347346221123640. [PMID: 36113432 DOI: 10.1177/15347346221123640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
In Persian Medicine, many plants have been used in wound healing for thousands of years, and recent evidence indicates the beneficial effects of plant extracts on healing skin wounds. Commiphora mukul oleo gum resin has been considered for a long time due to its various properties such as milk-enhancing, diuretic, and healing the mouth and larynx wounds. The present study aimed to evaluate the effect of Commiphora mukul oleo gum resin on wound healing in rats. Forty-two albino Wistar rats have randomly divided into six groups: The first group was without treatment, the second group was treated with Eucerin, the third group was treated with phenytoin cream %1, the fourth to sixth groups were treated with Commiphora mukul ointment 2%, 4%, and 8% respectively. Treatment was performed once a day for 14 days, and the wound area was measured daily. At the end of the experiment, blood samples were taken to measure vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF). The histological evaluation and the strength test of the repaired tissue were performed. The results showed that seven days after treatment, the wound area decreased significantly in the groups treated with mukul gum extract compared to the control groups (p0.05). At the end of the experiment, there was no significant difference in wound area reduction between the groups. Commiphora mukul gum extract increased VEGF and significantly improved skin elasticity. The results of this study indicate the Wound healing potential of Commiphora mukul.
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Affiliation(s)
- Alireza Malayeri
- Department of Pharmacology, Faculty of Pharmacy, 48407Ahvaz Jundishapur University of medical Sciences, Ahvaz, Iran
| | - Zeinab Zaheri Abdevand
- Medicinal Plant Research center, Department of Pharmacognosy, Faculty of Pharmacy, 48407Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masoud Rashedi
- Faculty of Pharmacy, 48407Ahvaz Jundishapur University of medical Sciences, Ahvaz, Iran
| | - Shokouh Sadat Hamedi
- Faculty of Traditional Medicine, 37552Mashhad University of medical Sciences, Mashhad, Iran
| | - Zahra Basir
- Department of Basic Science, faculty of Veterinary Medicine, 48513Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Fereshteh Golfakhrabadi
- Medicinal Plant Research center, Department of Pharmacognosy, Faculty of Pharmacy, 48407Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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15
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Yang M, Zhang J, Shi W, Zhang J, Tao C. Recent advances in metal-organic frameworks and their composites for the phototherapy of skin wounds. J Mater Chem B 2022; 10:4695-4713. [PMID: 35687028 DOI: 10.1039/d2tb00341d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Wound healing is a complex process that greatly affects the normal physiological activities of genes, proteins, signaling pathways, tissues, and organs. Bacterial infection could easily lead to serious tissue damage during wound healing, thus countering wound infections becomes a major challenge for clinicians and nursing professionals. At present, the exploration of highly effective, low toxicity and environment friendly methods for wound healing is attracting considerable interest all over the world. Recently, metal-organic frameworks (MOFs) have presented great potential for treating wound infections due to their unique characteristics of diversified functionality, large specific surface area, and high biocompatibility. These properties endow MOFs/MOF-based composites with an outstanding anti-wound infection effect, which is mainly attributed to the continuously released active components and the exerted catalytic activity with the assistance of phototherapy. In this review, the current progress of MOFs/MOF-based composites for the phototherapy of skin wounds is presented. Firstly, we illustrate the pathophysiological mechanisms, principles of phototherapy and the conventional methods for wound healing. Then, the structures and characteristics of MOFs are systematically summarized. Moreover, the review highlights the recent advances in the application of phototherapy for wound healing (including photodynamic therapy, photothermal therapy, and synergistic therapy) based on various MOFs/MOF-based composites. Finally, the challenges and perspectives are provided for the further development of MOF-based materials for medical application.
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Affiliation(s)
- Mei Yang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, P. R. China.
| | - Jin Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Wu Shi
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, P. R. China.
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Chuanmin Tao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, P. R. China.
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16
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Mo F, Zhang M, Duan X, Lin C, Sun D, You T. Recent Advances in Nanozymes for Bacteria-Infected Wound Therapy. Int J Nanomedicine 2022; 17:5947-5990. [PMID: 36510620 PMCID: PMC9739148 DOI: 10.2147/ijn.s382796] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/05/2022] [Indexed: 12/12/2022] Open
Abstract
Bacterial-infected wounds are a serious threat to public health. Bacterial invasion can easily delay the wound healing process and even cause more serious damage. Therefore, effective new methods or drugs are needed to treat wounds. Nanozyme is an artificial enzyme that mimics the activity of a natural enzyme, and a substitute for natural enzymes by mimicking the coordination environment of the catalytic site. Due to the numerous excellent properties of nanozymes, the generation of drug-resistant bacteria can be avoided while treating bacterial infection wounds by catalyzing the sterilization mechanism of generating reactive oxygen species (ROS). Notably, there are still some defects in the nanozyme antibacterial agents, and the design direction is to realize the multifunctionalization and intelligence of a single system. In this review, we first discuss the pathophysiology of bacteria infected wound healing, the formation of bacterial infection wounds, and the strategies for treating bacterially infected wounds. In addition, the antibacterial advantages and mechanism of nanozymes for bacteria-infected wounds are also described. Importantly, a series of nanomaterials based on nanozyme synthesis for the treatment of infected wounds are emphasized. Finally, the challenges and prospects of nanozymes for treating bacterial infection wounds are proposed for future research in this field.
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Affiliation(s)
- Fayin Mo
- School of Nursing, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
- Center for Drug Research and Development, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Minjun Zhang
- School of Nursing, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Xuewei Duan
- School of Nursing, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Chuyan Lin
- School of Nursing, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Duanping Sun
- Center for Drug Research and Development, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
- Correspondence: Duanping Sun; Tianhui You, Email ;
| | - Tianhui You
- School of Nursing, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
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17
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Carbon Nanotubes-Based Hydrogels for Bacterial Eradiation and Wound-Healing Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11209550] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Biocompatible nanomaterials have attracted enormous interest for biomedical applications. Carbonaceous materials, including carbon nanotubes (CNTs), have been widely explored in wound healing and other applications because of their superior physicochemical and potential biomedical properties to the nanoscale level. CNTs-based hydrogels are widely used for wound-healing and antibacterial applications. CNTs-based materials exhibited improved antimicrobial, antibacterial, adhesive, antioxidants, and mechanical properties, which are beneficial for the wound-healing process. This review concisely discussed the preparation of CNTs-based hydrogels and their antibacterial and wound-healing applications. The conductive potential of CNTs and their derivatives is discussed. It has been observed that the conductivity of CNTs is profoundly affected by their structure, temperature, and functionalization. CNTs properties can be easily modified by surface functionalization. CNTs-based composite hydrogels demonstrated superior antibacterial potential to corresponding pure polymer hydrogels. The accelerated wound healing was observed with CNTs-based hydrogels.
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18
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Accelerated Wound Healing Using a Novel Far-Infrared Ceramic Blanket. Life (Basel) 2021; 11:life11090878. [PMID: 34575027 PMCID: PMC8469926 DOI: 10.3390/life11090878] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/11/2021] [Accepted: 08/25/2021] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION Wounds are associated with ranges of simple to complex disruption or damage to anatomical structure and function. They are also associated with enormous economic and social costs, increasing yearly, resulting in a severe impact on the wellbeing of individuals and society. Technology that might accelerate wound healing is associated with many benefits to injured people. METHODS BALBc mice underwent symmetrical excisional wounds through the panniculus carnosus. They were divided into a treatment group placed on an autonomous ceramic far-field infrared blanket (cIFRB) and a control group maintained under standard conditions. We also expanded and cultured adipose tissue-derived mesenchymal stem cells (MSCs) on cIFRB and compared them to standard conditions subjected to a scratch injury to compare survival, proliferation, and wound healing. RESULTS The wound healing of the cIRFB treatment group was significantly faster than the control group of mice. The wound-healing effect of mesenchymal stem cells on cIRFB was also increased and associated with significant migration to the wound area. CONCLUSIONS Wound healing is improved in a mouse model exposed to cFIRB. The ceramic blanket also promotes survival, proliferation, increased migration, and wound healing of MSCs without affecting their survival and proliferation. The utilization of cFIRB in cellular biology and medical applications may be promising in many situations currently explored in animal and human models. This technology needs no direct or battery power source and is entirely autonomous and noninvasive, making its application possible in any environment.
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19
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20
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Kunimitsu M, Kataoka Y, Nakagami G, Weller CD, Sanada H. Factors related to the composition and diversity of wound microbiota investigated using culture-independent molecular methods: a scoping review. Drug Discov Ther 2021; 15:78-86. [PMID: 33952764 DOI: 10.5582/ddt.2021.01036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
All open wounds are often colonized by commensal microbes as a loss of skin can provide a ready portal of entry for microorganisms. Although the wound microbiota is known to be associated with wound infection and with delayed healing, the factors related to the formations of wound microbiota contributing to such poor clinical outcomes are not clear and have not led to effective infection prevention interventions. This review aimed to scope the factors related to the composition and diversity of wound microbiota that have been investigated using culture-independent molecular methods. Original articles on wound microbiota published from January 1986 to February 2020 were included in this review. Thirty-one articles met the inclusion criteria and were grouped according to wound types: chronic, acute, and animal model wounds. The factors identified were categorized according to patient characteristics, wound characteristics, treatment, and sampling. Although some studies reported the effect size of the factors, the values were small. No studies elucidated the mechanism of wound microbiota formation. The results of this scoping review highlight that the factors associated with the diversity of wound microbiota are poorly understood and that further studies are needed.
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Affiliation(s)
- Mao Kunimitsu
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Yukie Kataoka
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Gojiro Nakagami
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Global Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Carolina D Weller
- School of Nursing and Midwifery, Monash University, Melbourne, Australia
| | - Hiromi Sanada
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Global Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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21
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Homaeigohar S, Monavari M, Koenen B, Boccaccini AR. Biomimetic biohybrid nanofibers containing bovine serum albumin as a bioactive moiety for wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111965. [PMID: 33812593 DOI: 10.1016/j.msec.2021.111965] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/06/2021] [Accepted: 02/08/2021] [Indexed: 12/13/2022]
Abstract
For the first time, a biohybrid nanofibrous wound dressing is developed via green electrospinning of a blend solution of bovine serum albumin (BSA) (1 and 3 wt%) and polycaprolactone (PCL). In such a system, the components are miscible and interact through hydrogen bonding between the carbonyl group of PCL and the amine group of BSA, as verified by ATR-FTIR. As a result, the biohybrid nanofibers show a superior elastic modulus and elongation (300% and 58%, respectively) compared with the neat PCL nanofibers. The included protein induces a hydrophilicity effect to the PCL nanofibers, notably at the higher BSA content (3 wt%). In contrast to the neat nanofibers, the biohybrid ones are bioactive and encourage formation of biominerals (made of amorphous calcium carbonate) on the surface, after immersion in simulated body fluid (SBF). Based on the WST-8 cell viability tests, NIH3T3 fibroblast cells were seen to properly interact with the biohybrid mats and to proliferate in their proximity. SEM images show that the cells largely adhere onto such nanofibers even more than they do on the neat ones and adopt a flattened and stretched shape. In addition, the live/dead assay and phalloidin/DAPI staining assay confirm large cell viability and normal cell morphology on the biohybrid nanofiber mats after 4 days incubation. Taken together, BSA/PCL nanofibers are able to offer optimum mechanical properties (elasticity) as well as mineralization which can potentially stimulate the wound healing process, and can be considered a suitable candidate for wound dressing applications.
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Affiliation(s)
- Shahin Homaeigohar
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom.
| | - Mahshid Monavari
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Benedict Koenen
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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22
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Salimi F, Mohammadipanah F. Nanomaterials Versus The Microbial Compounds With Wound Healing Property. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2020.584489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Age and diabetes related slow-healing or chronic wounds may result in morbidity and mortality through persistent biofilms infections and prolonged inflammatory phase. Nano-materials [metal/metal oxide NPs (39%), lipid vehicles (21%), polymer NPs (19%), ceramic nanoparticles (NPs) (14%), and carbon nanomaterials (NMs) (7%)] can be introduced as a possible next-generation therapy because of either their intrinsic wound healing activity or via carrying bioactive compounds including, antibiotics, antioxidants, growth factor or stem cell. The nanomaterials have been shown to implicate in all four stages of wound healing including hemostasis (polymer NPs, ceramic NPs, nanoceria-6.1%), inflammation (liposome/vesicles/solid lipid NPs/polymer NPs/ceramic NPs/silver NPs/gold NPs/nanoceria/fullerenes/carbon-based NPs-32.7%), proliferation (vesicles/liposome/solid lipid NPs/gold NPs/silver NPs/iron oxide NPs/ceramic NPs/copper NPs/self-assembling elastin-like NPs/nanoceria/micelle/dendrimers/polymer NPs-57.1%), remodeling (iron oxide NPs/nanoceria-4.1%). Natural compounds from alkaloids, flavonoids, retinoids, volatile oil, terpenes, carotenoids, or polyphenolic compounds with proven antioxidant, anti-inflammatory, immunomodulatory, or antimicrobial characteristics are also well known for their potential to accelerate the wound healing process. In the current paper, we survey the potential and properties of nanomaterials and microbial compounds in improving the process of wound and scar healing. Finally, we review the potential biocompounds for incorporation to nano-material in perspective to designate more effective or multivalent wound healing natural or nano-based drugs.
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23
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Depleting RhoA/Stress Fiber-Organized Fibronectin Matrices on Tumor Cells Non-Autonomously Aggravates Fibroblast-Driven Tumor Cell Growth. Int J Mol Sci 2020; 21:ijms21218272. [PMID: 33158289 PMCID: PMC7663795 DOI: 10.3390/ijms21218272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 10/30/2020] [Accepted: 10/31/2020] [Indexed: 01/15/2023] Open
Abstract
Fibronectin (FN) expressed by tumor cells has been known to be tumor suppressive but the pericellular FN (periFN) assembled on circulating tumor cells appears to evidently promote distant metastasis. Whereas the regulation of periFN assembly in suspended cells has currently been under investigation, how it is regulated in adherent tumor cells and the role of periFN in primary tumor growth remain elusive. Techniques of RNAi, plasmid transfections, immunoblotting, fluorescence/immunohistochemistry staining, cell proliferation assays, and primary tumor growth in C57BL6 mice and Fischer 344 rats were employed in this study. We found that endogenously synthesized FN in adherent tumor cells was required for periFN assembly which was aligned by RhoA-organized actin stress fiber (SF). Depleting periFN on adherent tumor cells congruently promoted in vivo tumor growth but surprisingly did not autonomously impact on in vitro tumor cell proliferation and apoptosis, suggestive of a non-autonomous role of periFN in in vivo tumor growth. We showed that the proliferative ability of shFN-expressing tumor cells was higher than shScramble cells did in the presence of fibroblasts. Altogether, these results suggested that depriving RhoA/SF-regulated periFN matrices non-autonomously promotes fibroblast-mediated tumor cell growth.
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Fu LQ, Chen XY, Cai MH, Tao XH, Fan YB, Mou XZ. Surface Engineered Metal-Organic Frameworks (MOFs) Based Novel Hybrid Systems for Effective Wound Healing: A Review of Recent Developments. Front Bioeng Biotechnol 2020; 8:576348. [PMID: 33042977 PMCID: PMC7527743 DOI: 10.3389/fbioe.2020.576348] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/17/2020] [Indexed: 12/26/2022] Open
Abstract
Wounds present serious medical complications and their healing requires strategies that promote angiogenesis, deposition of collagen as well as re-epithelialization of wounds. Currently used conventional wound healing strategies have become less effective due to various issues associated with them. Thus, novel strategies are needed to be developed for early and effective healing of wounds. Metal-organic frameworks (MOFs), formed by linking of metal ions through organic bridging ligands, are highly tunable hybrid materials and have attracted more considerable scientific attention due to their charming and prominent properties, such as abundant pore structures and multiple functionalities. Surface engineering of MOFs with unique ligands can overcome issues associated with conventional wound healing methods, thus resulting in early and effective wound healing. This review has been undertaken to elaborate wound healing, and the use of surface engineered MOFs for effective and rapid wound healing. The process of wound healing will be discussed followed by a detailed review of recent literature for summarizing applications of surface engineered MOFs for wound healing. MOFs wound healing will be discussed in terms of their use as antibacterial agents, therapeutic delivery vehicles, and dressing systems in wound healing.
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Affiliation(s)
- Luo-Qin Fu
- Department of General Surgery, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital Chun'an Branch), Hangzhou, China
| | - Xiao-Yi Chen
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Mao-Hua Cai
- Department of General Surgery, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital Chun'an Branch), Hangzhou, China
| | - Xiao-Hua Tao
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yi-Bin Fan
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Xiao-Zhou Mou
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
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Aghajani A, Kazemi T, Enayatifard R, Amiri FT, Narenji M. Investigating the skin penetration and wound healing properties of niosomal pentoxifylline cream. Eur J Pharm Sci 2020; 151:105434. [PMID: 32590122 DOI: 10.1016/j.ejps.2020.105434] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/02/2020] [Accepted: 06/22/2020] [Indexed: 12/22/2022]
Abstract
Wounds are defined as any injuries to the skin. Wounds can cause great inconvenience and health problems for the patients depending on the healing time and severity. This makes wound healing and the strategies to treat a wound or reduce their treatment time, an important concern in health care systems. Pentoxifylline (PTX) has been reported to facilitate the wound healing in systemic administration. Different cellular and immunological mechanisms have been reported and suggested regarding the promising effects of PTX. On the other hand, the topical application of PTX seems to improve its therapeutic efficiency by localizing the drug on the wound site. In this study, PTX-niosomes were prepared and characterized. Niosomes with Zavg of 150, 200, and 300 nm were incorporated into the base cold cream. In-vitro release of PTX from these formulations was obtained between 70 -100%. Ex-vivo penetration/retention studies showed that niosomal formulations (F6 and F7) increased penetration of PTX by 1.8 and 1.2 times, respectively in comparison with the PTX-conventional cream. Retention of PTX from both niosomal creams was about 2 times higher than the PTX-conventional cream. In -vivo studies on the full-thickness wound in BALB/c mice showed that PTX-niosomal creams shortened the duration of wound healing by two days compared to control groups (PTX-conventional cream, base cream, and no treatment). The final wound size in the niosomal cream-treated group was also significantly smaller than the control groups. Histological analysis of the wounds confirmed the results of in-vivo studies.
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Affiliation(s)
- Ali Aghajani
- Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
| | - Tabassom Kazemi
- Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
| | - Reza Enayatifard
- Department of pharmaceutics, Faculty of pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fereshteh Talebpour Amiri
- Department of Anatomy, Molecular and Cell Biology Research, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mahsa Narenji
- Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran; Department of pharmaceutics, Faculty of pharmacy, Mazandaran University of Medical Sciences, Sari, Iran.
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Formulation of Chitosan Stabilized Silver Nanoparticle-Containing Wound Healing Film: In Vitro and In Vivo Characterization. J Pharm Sci 2020; 109:2196-2205. [DOI: 10.1016/j.xphs.2020.03.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/19/2020] [Accepted: 03/26/2020] [Indexed: 12/13/2022]
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Hu X, Qin N, Xue J, Li S, Huang X, Sun J, Xu F, Li Z, Li D, Hua H. Dehydrodiconiferyl alcohol from Silybum marianum (L.) Gaertn accelerates wound healing via inactivating NF-κB pathways in macrophages. J Pharm Pharmacol 2020; 72:305-317. [PMID: 31742713 DOI: 10.1111/jphp.13205] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 10/21/2019] [Accepted: 10/26/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the molecular mechanisms of the efficacy of lignin compound dehydrodiconiferyl alcohol (DHCA) isolated from Silybum marianum (L.) Gaertn in improving wound healing. These findings preliminarily brought to light the promising therapeutic potential of DHCA in skin wound healing. METHODS First, the effect of DHCA on healing in vivo was studied using a full-thickness scalp wound model of mice by topical administration. Histopathological examinations were then conducted by haematoxylin and eosin (H&E), Masson's trichrome staining and the immunofluorescence assay. Second, we further examined the anti-inflammatory mechanism of DHCA in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages by immunofluorescence assay and Western blot analysis. KEY FINDINGS DHCA could promote scalp wound healing in mice by enhancing epithelial cell proliferation and collagen formation and reducing inflammatory cells infiltration. Moreover, the NF-κB nuclear translocation was suppressed remarkably by DHCA administration in connective tissue of healing area. DHCA was also shown to inhibit production of nitric oxide (NO) and interleukin (IL)-1β with downregulated inducible nitric oxide synthase (iNOS) expression in LPS-induced RAW 246.7 cells. More importantly, DHCA administration upregulated p-IκBα expression and induced nuclear translocation of NF-κB without affecting its expression. CONCLUSIONS Our study indicated that DHCA exerted anti-inflammatory activity through inactivation of NF-κB pathways in macrophages and subsequently improved wound healing.
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Affiliation(s)
- Xu Hu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Ningbo Qin
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
- National Engineering Research Center of Seafood, Dalian, China
| | - Jingjing Xue
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Siqi Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaofang Huang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Jianan Sun
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Fanxing Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhanlin Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
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Dini V, Janowska A, Davini G, Kerihuel JC, Fauverghe S, Romanelli M. Biomodulation induced by fluorescent light energy versus standard of care in venous leg ulcers: a retrospective study. J Wound Care 2019; 28:730-736. [DOI: 10.12968/jowc.2019.28.11.730] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Objective: The recently completed EUREKA study confirmed the efficacy and safety profile of fluorescent light energy (FLE) in treating hard-to-heal wounds. To supplement the EUREKA prospective, observational, uncontrolled trial results, researchers selected one of the EUREKA clinical centres to conduct a retrospective analysis of matching wound care data for 46 venous leg ulcers (VLU) patients who had received standard wound care over a five-year period, compared with 10 EUREKA VLU subjects. Method: The study centre selected 46 patients with VLUs based on the matching criteria (wound age and size, patient's age and gender). They compared the healing rates of these matching VLUs with 10 VLU patients treated at the same centre during the EUREKA study. Results: The EUREKA patients had larger and significantly older wounds (p<0.05) and significantly more risk factors (p<0.05) than the matching wounds. However, they had better outcomes (EUREKA: 40% versus matching group: 7% for full wound closure by 16 weeks). No wound breakdown was observed at 16 weeks in the EUREKA group, compared with 25% in the matching group. No EUREKA patient developed infections requiring antibiotics, compared with 37% in the matching group. EUREKA wounds had a mean relative wound area regression (RWAR) of 32% at week six and 50% at week 16, compared with −3% at week six and −6% at week 16 for the matching group. Conclusion: These findings show that the system based on FLE was well-tolerated and efficacious, with better clinical outcome results compared with the wounds analysed in this retrospective matching study and treated with standard of care alone.
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Affiliation(s)
- Valentina Dini
- Wound Healing Research Unit, Department of Dermatology, School of Medicine, University of Pisa, Italy
| | - Agata Janowska
- Wound Healing Research Unit, Department of Dermatology, School of Medicine, University of Pisa, Italy
| | - Giulia Davini
- Wound Healing Research Unit, Department of Dermatology, School of Medicine, University of Pisa, Italy
| | | | | | - Marco Romanelli
- Wound Healing Research Unit, Department of Dermatology, School of Medicine, University of Pisa, Italy
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Williams S, Okolie CL, Deshmukh J, Hawco L, McNeil J, Nganou Assonkeng AC, Bennett C, Mkandawire M. Magnetizing Cellulose Fibers with CoFe2O4 Nanoparticles for Smart Wound Dressing for Healing Monitoring Capability. ACS APPLIED BIO MATERIALS 2019; 2:5653-5662. [DOI: 10.1021/acsabm.9b00731] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stephen Williams
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
- Faculty of Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Chigozie L. Okolie
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
| | - Jay Deshmukh
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
- Faculty of Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Lindsay Hawco
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
| | - James McNeil
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
- Faculty of Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | | | - Craig Bennett
- Department of Physics, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Martin Mkandawire
- Department of Chemistry, Cape Breton University, Sydney, NS B1P 6L2, Canada
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An Intelligent and Smart Environment Monitoring System for Healthcare. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9194172] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Skin wound healing is influenced by two kinds of environment i.e., exterior environment that is nearby to wound surface and interior environment that is the environment of the adjacent part under wound surface. Both types of environment play a vital role in wound healing, which may contribute to continuous or impaired wound healing. Although, different previous studies provided wound care solutions, but they focused on single environmental factors either wound moisture level, pH value or healing enzymes. Practically, it is insignificant to consider environmental effect by determination of single factors or two, as both types of environment contain a lot of other factors which must be part of investigation e.g., smoke, air pollution, air humidity, temperature, hydrogen gases etc. Also, previous studies didn’t classify overall healing either as continuous or impaired based on exterior environment effect. In current research work, we proposed an effective wound care solution based on exterior environment monitoring system integrated with Neural Network Model to consider exterior environment effect on wound healing process, either as continuous or impaired. Current research facilitates patients by providing them intelligent wound care solution to monitor and control wound healing at their home.
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Abstract
Introduction Wounds and their complications present a frequent cause of morbidity and mortality in everyday clinical practice. In order to reduce the wound burden, much effort has been directed into the physiology of healing and new therapeutic approaches. Aim This paper provides an overview from the literature about the role of endothelial and epithelial cells in tissue filler employment for wound healing. Material and Methods The scientific literature was reviewed through PubMed, Medline and Science Direct. The articles were chosen in correlation with the study objective and their scientific relevance. Results Successful wound healing depends on many diverse processes, cell types and molecular mediators. The definitive aim of wound healing is a properly healed wound. Tissue fillers are becoming an important alternative in wound management, although augmentation of soft tissue can present a demanding problem due to the difficulties in tissue survival. In order to prevent its failure, an optimal vascular network needs to form from wound edges into the filler. Conclusions Because of the importance of chemotaxis and angiogenesis in various physiological and pathological processes, both events present an extensive area of intense research. Additionally, epithelial cells are needed to cover the wound defect and sealing the wound environment from outer world.
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Affiliation(s)
- Tomaz Velnar
- Department of Neurosurgery, University Medical Centre Ljubljana, Ljubljana, Slovenia.,AMEU-ECM Maribor, Slovenia
| | - Lidija Gradisnik
- AMEU-ECM Maribor, Slovenia.,Institute of Biomedical Sciences, Medical Faculty Maribor, Slovenia
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Huang Y, Dan N, Dan W, Zhao W, Bai Z, Chen Y, Yang C. Facile fabrication of gelatin and polycaprolactone based bilayered membranes via spin coating method with antibacterial and cyto-compatible properties. Int J Biol Macromol 2019; 124:699-707. [DOI: 10.1016/j.ijbiomac.2018.11.262] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/27/2018] [Accepted: 11/27/2018] [Indexed: 12/25/2022]
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Garcia-Orue I, Gainza G, Garcia-Garcia P, Gutierrez FB, Aguirre JJ, Hernandez RM, Delgado A, Igartua M. Composite nanofibrous membranes of PLGA/Aloe vera containing lipid nanoparticles for wound dressing applications. Int J Pharm 2019; 556:320-329. [DOI: 10.1016/j.ijpharm.2018.12.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/16/2018] [Accepted: 12/04/2018] [Indexed: 12/11/2022]
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Li B, Hu W, Ma K, Zhang C, Fu X. Are hair follicle stem cells promising candidates for wound healing? Expert Opin Biol Ther 2019; 19:119-128. [PMID: 30577700 DOI: 10.1080/14712598.2019.1559290] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION With the continued focus on in-depth investigations of hair follicle stem cells (HFSCs), the role of HFSCs in wound healing has attracted increasing attention from researchers. This review may afford meaningful implications for HFSC treatment of wounds. AREAS COVERED We present the properties of HFSCs, analyze the possibility of HFSCs in wound healing, and sum up the recent studies into wound repair with HFSCs. The details of HFSCs in wound healing have been discussed. The possible mechanisms of wound healing with HFSCs have been elaborated. Additionally, the factors that influence HFSCs in wound healing are also summarized. EXPERT OPINION Hair follicle stem cells are promising sources for wound healing. However, a further understanding of human HFSCs and the safety use of HFSCs in clinical practice still remain in relative infancy.
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Affiliation(s)
- Bingmin Li
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Wenzhi Hu
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Kui Ma
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Cuiping Zhang
- b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Xiaobing Fu
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
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Nethi SK, Das S, Patra CR, Mukherjee S. Recent advances in inorganic nanomaterials for wound-healing applications. Biomater Sci 2019; 7:2652-2674. [DOI: 10.1039/c9bm00423h] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The emergence of inorganic nanoparticles has generated considerable expectation for solving various biomedical issues including wound healing and tissue regeneration. This review article highlights the role and recent advancements of inorganic nanoparticles for wound healing and tissue regeneration along with their advantages, clinical status, challenges and future directions.
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Affiliation(s)
- Susheel Kumar Nethi
- Department of Experimental and Clinical Pharmacology
- College of Pharmacy
- University of Minnesota
- Minneapolis
- USA
| | - Sourav Das
- Department of Applied Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Chitta Ranjan Patra
- Department of Applied Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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Udhayakumar S, Shankar KG, Sowndarya S, Rose C. Novel fibrous collagen-based cream accelerates fibroblast growth for wound healing applications: in vitro and in vivo evaluation. Biomater Sci 2018; 5:1868-1883. [PMID: 28676877 DOI: 10.1039/c7bm00331e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The present study reports the development of a novel film-forming bovine collagenous cream (BCC) based on bovine collagen (BC). In this study, collagen was isolated from bovine forestomach tissue, a novel source, and a cream formulation was prepared using some other bioactive ingredients. The electrophoretic pattern of the BC was found to be similar to type I collagen. The purity of BC was examined by amino acid analysis, which confirmed the presence of atelocollagen. The physicochemical properties of BCC such as rheology, spreadability, and temperature stability were characterized. The antimicrobial activity was examined against Bacillus subtilis, Staphylococcus aureus, and Escherichia coli, and BCC displayed excellent inhibitory effect. In vitro biocompatibility studies using NIH 3T3 fibroblast cells showed enhanced cell viability. FACS analysis revealed the non-toxic nature of BCC toward cells. The cell morphology and proliferation on the BCC matrix was studied using SEM and fluorescence microscopy. The in vivo wound healing efficacy of the BCC as a topical wound dressing was demonstrated on full thickness excision wounds in rat models. The healing profile showed that the BCC significantly enhanced re-epithelialization, collagen deposition, and contraction in the wound healing process. The findings of this study provide a new opportunity for the utilization of the untapped byproducts of the meat industry for valorization. We expect that this kind of topical healing cream could be a potential candidate in wound management and future clinical needs.
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Affiliation(s)
- Sivalingam Udhayakumar
- Department of Biochemistry and Biotechnology, CSIR-Central Leather Research Institute, Chennai 600020, India.
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Romanelli M, Piaggesi A, Scapagnini G, Dini V, Janowska A, Iacopi E, Scarpa C, Fauverghe S, Bassetto F. EUREKA study - the evaluation of real-life use of a biophotonic system in chronic wound management: an interim analysis. DRUG DESIGN DEVELOPMENT AND THERAPY 2017; 11:3551-3558. [PMID: 29270004 PMCID: PMC5729886 DOI: 10.2147/dddt.s142580] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Objective Interest has grown regarding photobiomodulation (PBM) with low-level light therapy, which has been shown to positively affect the stages of the wound healing process. In a real-life context clinical setting, the objective of the EUREKA study was to investigate efficacy, safety, and quality of life associated with the use of a BioPhotonic gel (LumiHeal™) in the treatment of chronic wounds such as venous leg ulcers (VLUs), diabetic foot ulcers (DFUs), and pressure ulcers (PUs). This BioPhotonic gel represents a new, first-in-class emission spectrum of light, including fluorescence, to induce PBM and modulate healing. Design The multicenter, prospective, interventional, uncontrolled, open-label study enrolled 100 patients in 12 wound centers in Italy. We performed an early interim analysis based on the first 33 subjects (13 VLU, 17 DFU, 3 PU) in seven centers who completed the study. Main results Seventeen patients (52%) achieved total wound closure (full re-epithelialization for 2 weeks) during the study period. Two patients (6%) were considered “almost closed” (decrease of the wound area of more than 90% at study end) and three others (9%) were considered “ready for skin grafting”. No related serious adverse events were observed, and the compliance was excellent. After the treatment, the average time to “pain-free” was 11.9 days in the VLU group. Quality of life was improved with overall increase of 26.4% of the total score (Cardiff Wound Impact Schedule, p=0.001). Conclusion The study revealed a positive efficacy profile of the BioPhotonic gel in promoting wound healing and reactivating the healing process in different types of chronic, hard-to-heal wounds. The treatment was shown to be safe and well tolerated by the patients, and a reduction of pain perception was also detected during the treatment period. The improvement of the quality of life was accompanied by a high level of clinician satisfaction.
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Affiliation(s)
- Marco Romanelli
- Wound Healing Research Unit, Division of Dermatology, School of Medicine, University of Pisa, Pisa
| | - Alberto Piaggesi
- Diabetic Foot Section, Department of Medicine, University of Pisa, Pisa
| | - Giovanni Scapagnini
- Department of Medicine and Health Sciences, School of Medicine, University of Molise, Campobasso
| | - Valentina Dini
- Wound Healing Research Unit, Division of Dermatology, School of Medicine, University of Pisa, Pisa
| | - Agata Janowska
- Wound Healing Research Unit, Division of Dermatology, School of Medicine, University of Pisa, Pisa
| | - Elisabetta Iacopi
- Diabetic Foot Section, Department of Medicine, University of Pisa, Pisa
| | - Carlotta Scarpa
- Clinic of Plastic and Reconstructive Surgery, Padova University-Hospital, Padova, Italy
| | | | - Franco Bassetto
- Clinic of Plastic and Reconstructive Surgery, Padova University-Hospital, Padova, Italy
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38
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Novel nanofibrous dressings containing rhEGF and Aloe vera for wound healing applications. Int J Pharm 2017; 523:556-566. [DOI: 10.1016/j.ijpharm.2016.11.006] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 11/02/2016] [Indexed: 01/23/2023]
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Strong AL, Neumeister MW, Levi B. Stem Cells and Tissue Engineering: Regeneration of the Skin and Its Contents. Clin Plast Surg 2017; 44:635-650. [PMID: 28576253 DOI: 10.1016/j.cps.2017.02.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this review, the authors discuss the stages of skin wound healing, the role of stem cells in accelerating skin wound healing, and the mechanism by which these stem cells may reconstitute the skin in the context of tissue engineering.
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Affiliation(s)
- Amy L Strong
- Division of Plastic Surgery, Department of Surgery, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA
| | - Michael W Neumeister
- Department of Surgery, Institute for Plastic Surgery, Southern Illinois University School of Medicine, 747 North Rutledge Street, Springfield, IL 62702, USA
| | - Benjamin Levi
- Division of Plastic Surgery, Department of Surgery, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA; Burn Wound and Regenerative Medicine Laboratory, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, MI 48109, USA.
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Geesala R, Dhoke NR, Das A. Cox-2 inhibition potentiates mouse bone marrow stem cell engraftment and differentiation-mediated wound repair. Cytotherapy 2017; 19:756-770. [PMID: 28433514 DOI: 10.1016/j.jcyt.2017.03.072] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/18/2017] [Accepted: 03/20/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Engraftment of transplanted stem cells is often limited by cytokine and noncytokine proinflammatory mediators at the injury site. We examined the role of Cyclooxygenase-2 (Cox-2)-induced cytokine-mediated inflammation on engraftment of transplanted bone marrow stem cells (BMSCs) at the wound site. METHODS BMSCs isolated from male C57/BL6J mice were transplanted onto excisional splinting wounds in syngenic females in presence or absence of celecoxib, Cox-2 specific inhibitor (50 mg/kg, body weight [b wt]), to evaluate engraftment and wound closure. Inflammatory cell infiltration and temporal expression of inflammatory cytokines at the wound bed were determined using immunohistochemical and quantitative-real time polymerase chain reaction (qPCR) analysis, respectively. Mechanistic studies were performed on a murine macrophage cell line (J774.2) to evaluate the effect of interleukin (IL)-17A. RESULTS Celecoxib administration led to a significantly high percent of wound closure, cellular proliferation, collagen deposition, BMSCs engraftment and re-epithelialization at the wound site. Interestingly, recruitment of CD4+T cells and F4/80+ macrophages as well as BMSC transplantation induced up-regulation of Cox-2 and IL-17A gene expression levels were reverted by celecoxib administration. Exogenous supplementation of recombinant interleukin (rIL)-17 to J774.2 cells significantly increased proliferation and gene expression of cytokines -IL-1β, IL-6, IL-8, IL-18 and tumor necrosis factor (TNF)-α via nuclear translocation of nuclear factor kappa B (NFκB)p65/50 subunit. Conditioned media of rIL-17 treated J774.2 cells when supplemented to BMSCs depicted a dose-dependent increase in the number of apoptotic cells and proapoptotic protein expression that was perturbed by celecoxib or IL-17 neutralizing antibody. Finally, celecoxib led to a dose-dependent increase in BMSC differentiation into keratinocyte-like cells in vitro. CONCLUSION Celecoxib protects transplanted BMSCs from Cox-2/IL-17-induced inflammation and increases their engraftment, differentiation into keratinocytes and re-epithelialization thereby potentiating wound tissue repair.
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Affiliation(s)
- Ramasatyaveni Geesala
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India; Academy of Scientific & Innovative Research, New Delhi, India
| | - Neha R Dhoke
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India; Academy of Scientific & Innovative Research, New Delhi, India
| | - Amitava Das
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India; Academy of Scientific & Innovative Research, New Delhi, India.
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Diagnostic and Prognostic Utility of Non-Invasive Multimodal Imaging in Chronic Wound Monitoring: a Systematic Review. J Med Syst 2017; 41:46. [PMID: 28194684 DOI: 10.1007/s10916-016-0679-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 12/12/2016] [Indexed: 01/09/2023]
Abstract
Monitoring chronic wound [CW] healing is a challenging issue for clinicians across the world. Moreover, the health and cost burden of CW are escalating at a disturbing rate due to a global rise in population of elderly and diabetic cases. The conventional approach includes visual contour, sketches, or more rarely tracings. However, such conventional techniques bring forth infection, pain, allergies. Furthermore, these methods are subjective as well as time-consuming. As such, nowadays, non-touching and non-invasive CW monitoring system based on imaging techniques are gaining importance. They not only reduce patients' discomfort but also provide rapid wound diagnosis and prognosis. This review provides a survey of different types of CW characteristics, their healing mechanism and the multimodal non-invasive imaging methods that have been used for their diagnosis and prognosis. Current clinical practices as well as personal health systems [m-health and e-health] for CW monitoring have been discussed.
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Affiliation(s)
- James Melrose
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute Northern Sydney Local Health District, St. Leonards, NSW, Australia
- Sydney Medical School, Royal North Shore Hospital, The University of Sydney, Camperdown, NSW, Australia
- School of Biomedical Engineering, The University of New South Wales, Kensington, NSW, Australia
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Platelet gel: a new therapeutic tool with great potential. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2016; 15:333-340. [PMID: 27483482 DOI: 10.2450/2016.0038-16] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 05/09/2016] [Indexed: 12/31/2022]
Abstract
Chronic wounds, such as diabetic foot ulcers, represent a serious clinical problem for patients and clinicians. Management of these wounds has a strong economic impact worldwide. Complications resulting from injuries are a frequent cause of morbidity and mortality. Chronic wounds lead to infections, painful dressings and prolonged hospitalisation. This results in poor patient Quality of Life and in high healthcare costs. Platelet concentrates (PC) are defined as autologous or allogeneic platelet derivatives with a platelet concentration higher than baseline. PC are widely used in different areas of Regenerative Medicine in order to enhance wound healing processes; they include platelet-rich plasma (PRP), platelet gel (PG), platelet-rich fibrin (PRF), serum eye drops (E-S), and PRP eye drops (E-PRP). This review highlights the use of platelet-rich plasma (PRP) and platelet gel (PG) preparation for clinical use.
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Wound Healing Concepts in Clinical Practice of OMFS. J Maxillofac Oral Surg 2016; 16:403-423. [PMID: 29038623 DOI: 10.1007/s12663-016-0880-z] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/05/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Wound healing is a complex and dynamic process and a thorough knowledge of the basics of physiology of wound healing is a must to implement principles of chronic wound care. Understanding wound healing at multiple levels-biochemical, physiologic, cellular and molecular provides the surgeon with a framework for basing clinical decisions aimed at optimizing the healing response. OBJECTIVE This review article describes the classification of wounds and aims to highlight the fundamentals of wound repair, enumerating the dressings used commonly and also, the newer concepts of wound healing. MATERIALS AND METHODS Search engines and medical databases were tapped to gather information on the subject. Search words employed were "Wounds", "wounds in OSMF", "Wound healing", "Repair", "Dressings in OMFS". RESULTS The search resulted in total of 153 articles which we reviewed to add to the literature the concepts of wound healing and to throw some light on recent advances in wound care. CONCLUSIONS Wound healing remains a challenging clinical problem and correct, efficient wound management is essential to positively influence the wound healing course and reduce potential complications.
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Velnar T, Bunc G, Klobucar R, Gradisnik L. Biomaterials and host versus graft response: a short review. Bosn J Basic Med Sci 2016; 16:82-90. [PMID: 26894284 PMCID: PMC4853000 DOI: 10.17305/bjbms.2016.525] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 02/18/2016] [Accepted: 07/16/2015] [Indexed: 01/27/2023] Open
Abstract
Biomaterials and biotechnology are increasing becoming an important area in modern medicine. The main aim in this area is the development of materials, which are biocompatible to normal tissue. Tissue-implant interactions with molecular, biological and cellular characteristics at the implant-tissue interface are important for the use and development of implants. Implantation may cause an inflammatory and immune response in tissue, foreign body reaction, systemic toxicity and imminent infection. Tissue-implant interactions determine the implant life-period. The aims of the study are to consider the biological response to implants. Biomaterials and host reactions to implants and their mechanisms are also briefly discussed.
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Affiliation(s)
- Tomaz Velnar
- University Medical Centre Maribor, Department of Neurosurgery.
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Kandhare AD, Alam J, Patil MVK, Sinha A, Bodhankar SL. Wound healing potential of naringin ointment formulation via regulating the expression of inflammatory, apoptotic and growth mediators in experimental rats. PHARMACEUTICAL BIOLOGY 2016; 54:419-32. [PMID: 25894211 DOI: 10.3109/13880209.2015.1038755] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
CONTEXT Wound healing is a consequence of a complex process involving inflammatory, proliferative, and remodeling phases. Naringin, a flavanone glycoside, is associated with modulation of various oxido-inflammatory and growth factors. AIM The aim of this study is to evaluate the wound-healing activity of naringin ointment formulation (NOF) on experimental wound models. MATERIALS AND METHODS A soft paraffin-based cream containing 1, 2, and 4% (w/w) naringin was formulated and evaluated for physicochemical characters. Excision wounds and incisions wounds were used to study the topical effect of NOF for 20 d (once a day) on various biochemical, molecular, and histological parameters. RESULTS NOF (2 and 4%, w/w) treatment showed a significant decrease (p < 0.05) in wound area and epithelization period whereas the rate of wound contraction increased significantly (p < 0.05). The altered levels of oxido-nitrosative stress (SOD, GSH, MDA, MPO, and NO) were significantly (p < 0.05) restored by NOF. Treatment produced a significant increase (p < 0.05) in tensile strength, hydroxyproline content, and protein content. TNF-α, IL-1β, IL-6, IL-8, NF-κB, smad-7, and Bax mRNA expression were significantly down-regulated (p < 0.05) by NOF, whereas polymerase gamma (pol-γ), smad-3, VEGF and TGF-β, and collagen-1 mRNA expressions were significantly up-regulated (p < 0.05) by NOF. Histological alterations in wound skin were also restored by NOF. CONCLUSION NOF exerts wound healing potential via down-regulated expression of inflammatory (NF-κB, TNF-α, and ILs), apoptotic (pol-γ and Bax), and up-regulated growth factor (VEGF and TGF-β) expression, thus modulating collagen-1 expression to induce angiogenesis leading to wound healing.
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Affiliation(s)
- Amit D Kandhare
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Javed Alam
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Mithun V K Patil
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Akanksha Sinha
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Subhash L Bodhankar
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
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Flegg JA, Menon SN, Maini PK, McElwain DLS. On the mathematical modeling of wound healing angiogenesis in skin as a reaction-transport process. Front Physiol 2015; 6:262. [PMID: 26483695 PMCID: PMC4588694 DOI: 10.3389/fphys.2015.00262] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/04/2015] [Indexed: 11/13/2022] Open
Abstract
Over the last 30 years, numerous research groups have attempted to provide mathematical descriptions of the skin wound healing process. The development of theoretical models of the interlinked processes that underlie the healing mechanism has yielded considerable insight into aspects of this critical phenomenon that remain difficult to investigate empirically. In particular, the mathematical modeling of angiogenesis, i.e., capillary sprout growth, has offered new paradigms for the understanding of this highly complex and crucial step in the healing pathway. With the recent advances in imaging and cell tracking, the time is now ripe for an appraisal of the utility and importance of mathematical modeling in wound healing angiogenesis research. The purpose of this review is to pedagogically elucidate the conceptual principles that have underpinned the development of mathematical descriptions of wound healing angiogenesis, specifically those that have utilized a continuum reaction-transport framework, and highlight the contribution that such models have made toward the advancement of research in this field. We aim to draw attention to the common assumptions made when developing models of this nature, thereby bringing into focus the advantages and limitations of this approach. A deeper integration of mathematical modeling techniques into the practice of wound healing angiogenesis research promises new perspectives for advancing our knowledge in this area. To this end we detail several open problems related to the understanding of wound healing angiogenesis, and outline how these issues could be addressed through closer cross-disciplinary collaboration.
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Affiliation(s)
- Jennifer A Flegg
- School of Mathematical Sciences, Monash University Melbourne, VIC, Australia
| | | | - Philip K Maini
- Wolfson Centre for Mathematical Biology, Mathematical Institute, University of Oxford Oxford, UK
| | - D L Sean McElwain
- Institute of Health and Biomedical Innovation and School of Mathematical Sciences, Queensland University of Technology Brisbane, QLD, Australia
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Salvo P, Dini V, Di Francesco F, Romanelli M. The role of biomedical sensors in wound healing. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.wndm.2015.03.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Macrophage peroxisome proliferator-activated receptor γ deficiency delays skin wound healing through impairing apoptotic cell clearance in mice. Cell Death Dis 2015; 6:e1597. [PMID: 25590807 PMCID: PMC4669743 DOI: 10.1038/cddis.2014.544] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 10/18/2014] [Accepted: 11/05/2014] [Indexed: 01/13/2023]
Abstract
Skin wound macrophages are key regulators of skin repair and their dysfunction causes chronic, non-healing skin wounds. Peroxisome proliferator-activated receptor gamma (PPARγ) regulates pleiotropic functions of macrophages, but its contribution in skin wound healing is poorly defined. We observed that macrophage PPARγ expression was upregulated during skin wound healing. Furthermore, macrophage PPARγ deficiency (PPARγ-knock out (KO)) mice exhibited impaired skin wound healing with reduced collagen deposition, angiogenesis and granulation formation. The tumor necrosis factor alpha (TNF-α) expression in wounds of PPARγ-KO mice was significantly increased and local restoration of TNF-α reversed the healing deficit in PPARγ-KO mice. Wound macrophages produced higher levels of TNF-α in PPARγ-KO mice compared with control. In vitro, the higher production of TNF-α by PPARγ-KO macrophages was associated with impaired apoptotic cell clearance. Correspondingly, increased apoptotic cell accumulation was found in skin wound of PPARγ-KO mice. Mechanically, peritoneal and skin wound macrophages expressed lower levels of various phagocytosis-related molecules. In addition, PPARγ agonist accelerated wound healing and reduced local TNF-α expression and wound apoptotic cells accumulation in wild type but not PPARγ-KO mice. Therefore, PPARγ has a pivotal role in controlling wound macrophage clearance of apoptotic cells to ensure efficient skin wound healing, suggesting a potential new therapeutic target for skin wound healing.
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50
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O'Connor NA, Abugharbieh A, Yasmeen F, Buabeng E, Mathew S, Samaroo D, Cheng HP. The crosslinking of polysaccharides with polyamines and dextran-polyallylamine antibacterial hydrogels. Int J Biol Macromol 2014; 72:88-93. [PMID: 25128095 DOI: 10.1016/j.ijbiomac.2014.08.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 07/28/2014] [Accepted: 08/05/2014] [Indexed: 10/24/2022]
Abstract
A facile modular approach to rapidly prepare pH-responsive hydrogels by crosslinking polysaccharides with polyamines is demonstrated. Hydrogels are prepared by first reacting the less reactive polysaccharides with the cross-linker epichlorohydrin and completed by the addition of polyamines. The crosslinking of polysaccharides with polyamines provides a facile method for incorporating functionality into polysaccharide based hydrogels. This process is demonstrated with the polysaccharides dextran, pullulan and carboxymethyl cellulose and with the polyamines polyallylamine and polyethylene imine. The hydrogels were characterized by FTIR and swelling studies, which showed pH-dependent swelling due to the presence of the polyamine. The hydrogels can also be tailored by varying the mass ratio between the polysaccharide and polyamine. Absorption studies of organic analytes showed the polyamine content affecting the uptake of a charged substrate (methylene blue) and no effect on a neutral substrate (6-methyl coumarin). This synthetic method was also used to prepare hydrogels with antibacterial activity against E. coli and S. aureus by utilizing an amphiphilic polyallylamine.
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Affiliation(s)
- Naphtali A O'Connor
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States.
| | - Ahmad Abugharbieh
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Farzana Yasmeen
- Department of Biology, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Emmanuel Buabeng
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Steve Mathew
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468, United States
| | - Diana Samaroo
- Department of Chemistry, New York City College of Technology, 300 Jay Street, Brooklyn, NY 11201, United States
| | - Hai-Ping Cheng
- Department of Biology, Lehman College of the City University of New York, Bronx, NY 10468, United States
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