1
|
Sanjarnia P, Picchio ML, Polegre Solis AN, Schuhladen K, Fliss PM, Politakos N, Metterhausen L, Calderón M, Osorio-Blanco ER. Bringing innovative wound care polymer materials to the market: Challenges, developments, and new trends. Adv Drug Deliv Rev 2024; 207:115217. [PMID: 38423362 DOI: 10.1016/j.addr.2024.115217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/24/2024] [Accepted: 02/18/2024] [Indexed: 03/02/2024]
Abstract
The development of innovative products for treating acute and chronic wounds has become a significant topic in healthcare, resulting in numerous products and innovations over time. The growing number of patients with comorbidities and chronic diseases, which may significantly alter, delay, or inhibit normal wound healing, has introduced considerable new challenges into the wound management scenario. Researchers in academia have quickly identified promising solutions, and many advanced wound healing materials have recently been designed; however, their successful translation to the market remains highly complex and unlikely without the contribution of industry experts. This review article condenses the main aspects of wound healing applications that will serve as a practical guide for researchers working in academia and industry devoted to designing, evaluating, validating, and translating polymer wound care materials to the market. The article highlights the current challenges in wound management, describes the state-of-the-art products already on the market and trending polymer materials, describes the regulation pathways for approval, discusses current wound healing models, and offers a perspective on new technologies that could soon reach consumers. We envision that this comprehensive review will significantly contribute to highlighting the importance of networking and exchanges between academia and healthcare companies. Only through the joint of these two actors, where innovation, manufacturing, regulatory insights, and financial resources act in harmony, can wound care products be developed efficiently to reach patients quickly and affordably.
Collapse
Affiliation(s)
- Pegah Sanjarnia
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Matías L Picchio
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain; Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina
| | - Agustin N Polegre Solis
- Beiersdorf AG, Research & Development Department, Beiersdorfstraße 1-9, 22529 Hamburg, Germany
| | - Katharina Schuhladen
- Beiersdorf AG, Research & Development Department, Beiersdorfstraße 1-9, 22529 Hamburg, Germany
| | - Patricia M Fliss
- Beiersdorf AG, Research & Development Department, Beiersdorfstraße 1-9, 22529 Hamburg, Germany
| | - Nikolaos Politakos
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Lutz Metterhausen
- Beiersdorf AG, Research & Development Department, Beiersdorfstraße 1-9, 22529 Hamburg, Germany
| | - Marcelo Calderón
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Ernesto R Osorio-Blanco
- Beiersdorf AG, Research & Development Department, Beiersdorfstraße 1-9, 22529 Hamburg, Germany.
| |
Collapse
|
2
|
Zhang H, Lin X, Cao X, Wang Y, Wang J, Zhao Y. Developing natural polymers for skin wound healing. Bioact Mater 2024; 33:355-376. [PMID: 38282639 PMCID: PMC10818118 DOI: 10.1016/j.bioactmat.2023.11.012] [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: 09/02/2023] [Revised: 11/02/2023] [Accepted: 11/16/2023] [Indexed: 01/30/2024] Open
Abstract
Natural polymers are complex organic molecules that occur in the natural environment and have not been subjected to artificial synthesis. They are frequently encountered in various creatures, including mammals, plants, and microbes. The aforementioned polymers are commonly derived from renewable sources, possess a notable level of compatibility with living organisms, and have a limited adverse effect on the environment. As a result, they hold considerable significance in the development of sustainable and environmentally friendly goods. In recent times, there has been notable advancement in the investigation of the potential uses of natural polymers in the field of biomedicine, specifically in relation to natural biomaterials that exhibit antibacterial and antioxidant characteristics. This review provides a comprehensive overview of prevalent natural polymers utilized in the biomedical domain throughout the preceding two decades. In this paper, we present a comprehensive examination of the components and typical methods for the preparation of biomaterials based on natural polymers. Furthermore, we summarize the application of natural polymer materials in each stage of skin wound repair. Finally, we present key findings and insights into the limitations of current natural polymers and elucidate the prospects for their future development in this field.
Collapse
Affiliation(s)
- Han Zhang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Xiang Lin
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Xinyue Cao
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yu Wang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Jinglin Wang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuanjin Zhao
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
- Shenzhen Research Institute, Southeast University, Shenzhen, 518038, China
| |
Collapse
|
3
|
Vaporidou N, Peroni F, Restelli A, Jalil MN, Dye JF. Artificial Skin Therapies; Strategy for Product Development. Adv Wound Care (New Rochelle) 2023; 12:574-600. [PMID: 36680749 DOI: 10.1089/wound.2022.0050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Significance: Tissue-engineered artificial skin for clinical reconstruction can be regarded as an established practice. Bi-layered skin equivalents are available as established allogenic or autologous therapy, and various acellular skin replacements can support tissue repair. Moreover, there is considerable commonality between the skin and other soft tissue reconstruction products. This article presents an attempt to create a comprehensive global landscape review of advanced replacement materials and associated strategies for skin and soft tissue reconstruction. Recent Advances: There has been rapid growth in the number of commercial and pre-commercial products over the past decade. In this survey, 263 base products for advanced skin therapy have been identified, across 8 therapeutic categories, giving over 350 products in total. The largest market is in the United States, followed by the E.U. zone. However, despite these advances, and the investment of resources in each product development, there are key issues concerning the clinical efficacy, cost-benefit of products, and clinical impact. Each therapeutic strategy has relative merits and limitations. Critical Issues: A critical consideration in developing and evaluating products is the therapeutic modality, associated regulatory processes, and the potential for clinical adoption geographically, determined by regulatory territory, intellectual property, and commercial distribution factors. The survey identifies an opportunity for developments that improve basic efficacy or cost-benefit. Future Directions: The economic pressures on health care systems, compounded by the demands of our increasingly ageing population, and the imperative to distribute effective health care, create an urgent global need for effective and affordable products.
Collapse
Affiliation(s)
- Nephelie Vaporidou
- Division of Surgery and Interdisciplinary Sciences, University College London, London, United Kingdom
- Oxartis Ltd., Oxford, United Kingdom
| | | | | | - M Nauman Jalil
- Oxartis Ltd., Oxford, United Kingdom
- MADE Cymru, University of Wales Trinity Saint David, Swansea, Wales, United Kingdom
| | - Julian F Dye
- Oxartis Ltd., Oxford, United Kingdom
- Research Strategy and Development, University College London, London, United Kingdom
| |
Collapse
|
4
|
Metwally AA, Soliman AS, Abdel-Hady ANAA, Ebnalwaled K, Mohamedien D, Abdelhameed AA, Saied AA. In Vivo Wound-Healing Effect of Chemical and Green Synthesized Chitosan Nanoparticles Using Lawsonia inermis Ethanolic Extract. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:1178-1189. [PMID: 37749685 DOI: 10.1093/micmic/ozad026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/30/2023] [Accepted: 02/20/2023] [Indexed: 09/27/2023]
Abstract
Wounds can be a result of surgery, an accident, or other factors. There is still a challenge to find effective topical wound-healing agents. This study aims to investigate the wound-healing activity of chemical and green synthesized chitosan nanoparticles (Ch-NPs) using Lawsonia inermis leaves extract. The nanoparticles were morphologically and chemically characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and high-resolution transmission electron microscopy (HRTEM). Forty-five adult female albino rats were randomly divided into three groups. The cutaneous surgical wounds were topically treated with 0.9% normal saline (control group), green Ch-NPs (second group), and chemical Ch-NPs gels (third group), respectively. The clinical picture of wounds and histopathological changes were assessed on the 3rd, 7th, 14th, and 21st days post-treatment. X-ray diffraction analysis revealed great crystallinity and purity of nanoparticles. The studied nanoparticles increased the wound contraction percent (WC%), reduced healing time and wound surface area (WSA), and these results were backed up by histological findings that indicated improved epithelialization, dermal differentiation, collagen deposition, and angiogenesis in treated rats compared with control rats (p < 0.05). We concluded that the wound-healing effects of the studied nanoparticles are encouraging, and further studies for complete assessment are still needed.
Collapse
Affiliation(s)
- Asmaa A Metwally
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Aswan University, Aswan 81528, Egypt
| | - Ahmed S Soliman
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Cairo University, Cairo 11865, Egypt
| | - Abdel-Nasser A A Abdel-Hady
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Khaled Ebnalwaled
- Electronics & Nano Devices Laboratory, Physics Department, Faculty of Science, South Valley University, Qena 83523, Egypt
- Egypt Nanotechnology Center (EGNC), Cairo University Sheikh Zayed Campus, Giza 12588, Egypt
| | - Dalia Mohamedien
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Abeer A Abdelhameed
- Department of Pharmacology, Faculty of Medicine, Benha Unniversity, Benha 13518, Egypt
| | - AbdulRahman A Saied
- National Food Safety Authority (NFSA), Aswan branch, Aswan 81511, Egypt
- Ministry of Tourism and Antiquities, Aswan office, Aswan 81511, Egypt
| |
Collapse
|
5
|
Da Silva J, Leal EC, Carvalho E, Silva EA. Innovative Functional Biomaterials as Therapeutic Wound Dressings for Chronic Diabetic Foot Ulcers. Int J Mol Sci 2023; 24:9900. [PMID: 37373045 DOI: 10.3390/ijms24129900] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/19/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The imbalance of local and systemic factors in individuals with diabetes mellitus (DM) delays, or even interrupts, the highly complex and dynamic process of wound healing, leading to diabetic foot ulceration (DFU) in 15 to 25% of cases. DFU is the leading cause of non-traumatic amputations worldwide, posing a huge threat to the well-being of individuals with DM and the healthcare system. Moreover, despite all the latest efforts, the efficient management of DFUs still remains a clinical challenge, with limited success rates in treating severe infections. Biomaterial-based wound dressings have emerged as a therapeutic strategy with rising potential to handle the tricky macro and micro wound environments of individuals with DM. Indeed, biomaterials have long been related to unique versatility, biocompatibility, biodegradability, hydrophilicity, and wound healing properties, features that make them ideal candidates for therapeutic applications. Furthermore, biomaterials may be used as a local depot of biomolecules with anti-inflammatory, pro-angiogenic, and antimicrobial properties, further promoting adequate wound healing. Accordingly, this review aims to unravel the multiple functional properties of biomaterials as promising wound dressings for chronic wound healing, and to examine how these are currently being evaluated in research and clinical settings as cutting-edge wound dressings for DFU management.
Collapse
Affiliation(s)
- Jessica Da Silva
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- PDBEB-Ph.D. Programme in Experimental Biology and Biomedicine, University of Coimbra, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
- Department of Biomedical Engineering, Genome and Biomedical Sciences Facilities, UC Davis, 451 Health Sciences Dr., Davis, CA 95616, USA
| | - Ermelindo C Leal
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
| | - Eugénia Carvalho
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
| | - Eduardo A Silva
- Department of Biomedical Engineering, Genome and Biomedical Sciences Facilities, UC Davis, 451 Health Sciences Dr., Davis, CA 95616, USA
- Department of Chemistry, Bioscience, and Environmental Engineering, University of Stavanger, Kristine Bonnevies vei 22, 4021 Stavanger, Norway
| |
Collapse
|
6
|
Khullar L, Harjai K, Chhibber S. Therapeutic and pro-healing potential of advanced wound dressings loaded with bioactive agents. Future Microbiol 2023; 18:43-63. [PMID: 36537228 DOI: 10.2217/fmb-2022-0162] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Chronic skin wound infections are inextricably linked with high mortality rates. With the rise in the aging population and the threat of diabetes, obesity and lifestyle-based diseases, the risk incurred from invasive wound pathogens has been ever escalating. Thus, more efficacious wound care management is necessary to cope with such morbid illnesses. A plethora of bioactive agents, such as antibiotics, phytochemicals, essential oils, phages among others, has been exploited to develop wound dressings, raising tremendous interest in their prospective use as wound care products. The present review critically focuses on the therapeutic implications of advanced wound dressings that have assisted in the expansion of regenerative medicine and also discusses the practical concerns that have limited their bench-to-market entry.
Collapse
Affiliation(s)
- Lavanya Khullar
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Kusum Harjai
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Sanjay Chhibber
- Department of Microbiology, Panjab University, Chandigarh, India
| |
Collapse
|
7
|
Saleh MA, Shabaan AA, May M, Ali YM. Topical application of indigo-plant leaves extract enhances healing of skin lesion in an excision wound model in rats. J Appl Biomed 2022; 20:124-129. [PMID: 36708717 DOI: 10.32725/jab.2022.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 11/03/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES This study aims to evaluate the pharmacological role of indigo extract in accelerating the wound healing in a rat model. METHODS Female Sprague-Dawley rats were anesthetized with ketamine (30 mg/kg, i.p.) and the full thickness of the marked skin was then cut carefully and wounds were left undressed. Indigo extract (5%) in PBS was applied topically twice daily until healing was complete. A control group of rats was treated with povidone-iodide (Betadine®). Rats treated with phosphate buffer saline were used as a negative control group. The rate of wound healing was assessed daily. Histopathological examination of skin sections were qualitatively assessed by independent evaluators. The inflammatory and apoptotic markers were assessed in skin tissue homogenates using ELISA. RESULTS Histopathology data showed that applying indigo to skin wounds enhanced the healing process, resulting in a significant decrease in dermal inflammation in comparison to untreated rats. Topical application of indigo significantly increased antioxidant enzyme activities with reduced malondialdehyde (MDA) levels in wound tissues. The levels of matrix metalloproteases-2 and -9 were significantly lower with an accompanied increase in the level of TGF-β1 in skin tissues from rats treated with indigo compared to the control group treated with PBS. CONCLUSIONS The antioxidant and anti-inflammatory properties of indigo leaf extract accelerate the healing of skin injuries.
Collapse
Affiliation(s)
- Mohamed A Saleh
- University of Sharjah, College of Medicine, Department of Clinical Sciences, Sharjah, The United Arab Emirates.,Mansoura University, Faculty of Pharmacy, Department of Pharmacology and Toxicology, Mansoura, Egypt
| | - Ahmed A Shabaan
- Mansoura University, Faculty of Pharmacy, Department of Pharmacology and Toxicology, Mansoura, Egypt.,Delta University for Science and Technology, Faculty of Pharmacy, Department of Pharmacology and Biochemistry, Gamasa City, Egypt
| | - Michel May
- AIZOME, JM Mark Inc., Chicago, USA & Munich, Germany
| | - Youssif M Ali
- University of Cambridge, School of Biological Sciences, Department of Veterinary Medicine, Cambridge, United Kingdom
| |
Collapse
|
8
|
Laurano R, Boffito M, Ciardelli G, Chiono V. Wound Dressing Products: a Translational Investigation from the Bench to the Market. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
|
9
|
Riedl J, Popp C, Eide C, Ebens C, Tolar J. Mesenchymal stromal cells in wound healing applications: role of the secretome, targeted delivery and impact on recessive dystrophic epidermolysis bullosa treatment. Cytotherapy 2021; 23:961-973. [PMID: 34376336 PMCID: PMC8569889 DOI: 10.1016/j.jcyt.2021.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/25/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022]
Abstract
Mesenchymal stromal cells (MSCs) are multi-potent stromal-derived cells capable of self-renewal that possess several advantageous properties for wound healing, making them of interest to the field of dermatology. Research has focused on characterizing the unique properties of MSCs, which broadly revolve around their regenerative and more recently discovered immunomodulatory capacities. Because of ease of harvesting and expansion, differentiation potential and low immunogenicity, MSCs have been leading candidates for tissue engineering and regenerative medicine applications for wound healing, yet results from clinical studies have been variable, and promising pre-clinical work has been difficult to reproduce. Therefore, the specific mechanisms of how MSCs influence the local microenvironment in distinct wound etiologies warrant further research. Of specific interest in MSC-mediated healing is harnessing the secretome, which is composed of components known to positively influence wound healing. Molecules released by the MSC secretome can promote re-epithelialization and angiogenesis while inhibiting fibrosis and microbial invasion. This review focuses on the therapeutic interest in MSCs with regard to wound healing applications, including burns and diabetic ulcers, with specific attention to the genetic skin disease recessive dystrophic epidermolysis bullosa. This review also compares various delivery methods to support skin regeneration in the hopes of combating the poor engraftment of MSCs after delivery, which is one of the major pitfalls in clinical studies utilizing MSCs.
Collapse
Affiliation(s)
- Julia Riedl
- Medical Scientist Training Program (MD/PhD), University of Minnesota, Minneapolis, Minnesota, USA; Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, USA
| | - Courtney Popp
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Cindy Eide
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christen Ebens
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jakub Tolar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA; Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, USA.
| |
Collapse
|
10
|
Evaluation of Wound-Healing and Antioxidant Effects of Marantodes pumilum (Blume) Kuntze in an Excision Wound Model. Molecules 2021; 26:molecules26010228. [PMID: 33466302 PMCID: PMC7795968 DOI: 10.3390/molecules26010228] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/27/2020] [Accepted: 12/29/2020] [Indexed: 11/17/2022] Open
Abstract
Marantodes pumilum (MP) is a great source of herbal medicine used traditionally by both men and women for various purposes. MP may have potential wound-healing effects due to its diverse biological properties. An extensive study was conducted in a normal male rat model for determining the effects of MP var. pumila (MPvp) and var. alata (MPva) on the wound healing process. Here, 126 male Sprague-Dawley rats were divided randomly into seven groups as follows: sham-operated (SH), vehicle dressing (VD), flavine dressing (FD), MPvp leaves (PL), MPvp roots (PR), MPva leaves (AL), and MPva roots (AR). The parameters studied were the percentage of wound contraction, histomorphology study by hematoxylin and eosin (H&E), Masson–Goldner trichrome (MGT), and immunohistochemistry (IHC) staining. In addition, the levels of enzymatic antioxidants and malondialdehyde were also measured in the wound tissue homogenates. Wounds treated with extracts (PL, PR, AL, and AR) showed significantly faster healing (p < 0.05) compared to untreated and control groups (SH, VD, and FD). Histological analysis among MP-treated groups revealed better re-epithelialization, higher collagen deposition, enhanced fibronectin content and fibroblast cells, and higher fiber transformation from collagen-III to collagen-I, accompanied with a significant surge in enzymatic antioxidant activities and a decline in lipid peroxidation. MP has antioxidant effects that may enhance wound healing in the rat model.
Collapse
|
11
|
Wang J, Wang M, Zhao L, Liu L, Wang X, Fan Z. Investigating the efficacy and safety of mineral smectite granules on wound healing. Exp Ther Med 2020; 21:160. [PMID: 33456527 PMCID: PMC7792489 DOI: 10.3892/etm.2020.9591] [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: 08/03/2019] [Accepted: 09/08/2020] [Indexed: 11/06/2022] Open
Abstract
Mineral smectite granules have traditionally been used for diarrhea and gastrointestinal bleeding; however, the wound healing ability of mineral smectite granules has not been investigated in detail. Therefore, the present study explored the efficacy and safety of mineral smectite granules on wound healing. An excision wound rat model was established. The experimental group was treated with smectite granules, the positive control group was treated with starch and the blank control group was left untreated. Wound closure rates, wound healing times and histopathological analysis were compared among the three groups. The mechanism underlying the effects of mineral smectite granules on wound healing was assessed by performing picrosirius red staining and immunohistochemical staining and measuring hydroxyproline content. Based on wound closure rates, wound healing times and histopathological analysis, the results indicated that rats treated with smectite granules displayed increased wound healing efficacy compared with the other two groups. Investigation of the underlying mechanism suggested that mineral smectite granules could promote wound healing by inducing collagen fiber synthesis and increasing the number of neovessels. The present study indicated the efficacy and safety of mineral smectite granules on wound healing and provided a theoretical basis for its application in a clinical setting.
Collapse
Affiliation(s)
- Jiankun Wang
- Digestive Endoscopy Department and General Surgery Department, The First Affiliated Hospital with Nanjing Medical University and Jiangsu Province Hospital, Nanjing, Jiangsu 210029, P.R. China
| | - Min Wang
- Digestive Endoscopy Department and General Surgery Department, The First Affiliated Hospital with Nanjing Medical University and Jiangsu Province Hospital, Nanjing, Jiangsu 210029, P.R. China
| | - Lili Zhao
- Digestive Endoscopy Department and General Surgery Department, The First Affiliated Hospital with Nanjing Medical University and Jiangsu Province Hospital, Nanjing, Jiangsu 210029, P.R. China
| | - Li Liu
- Digestive Endoscopy Department and General Surgery Department, The First Affiliated Hospital with Nanjing Medical University and Jiangsu Province Hospital, Nanjing, Jiangsu 210029, P.R. China
| | - Xiang Wang
- Digestive Endoscopy Department and General Surgery Department, The First Affiliated Hospital with Nanjing Medical University and Jiangsu Province Hospital, Nanjing, Jiangsu 210029, P.R. China
| | - Zhining Fan
- Digestive Endoscopy Department and General Surgery Department, The First Affiliated Hospital with Nanjing Medical University and Jiangsu Province Hospital, Nanjing, Jiangsu 210029, P.R. China
| |
Collapse
|
12
|
Nikahval B, Oryan A, Memarian P, Kamali A. Use of ovine acellular peritoneal matrix combined with honey and ovine fetal skin extract in the healing of full-thickness infected burn wounds in a rat model. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2020; 11:355-363. [PMID: 33643588 PMCID: PMC7904127 DOI: 10.30466/vrf.2018.92422.2235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 10/20/2018] [Indexed: 11/23/2022]
Abstract
Treatment of infected burn wounds remains a challenge in burn units. Silver-sulfadiazine (SSD) is the most commonly used topical antimicrobial agent in managing these wounds. We aimed to accelerate the healing of burn wounds by combined application of ovine acellular peritoneal matrix (OAPM), honey (H), and ovine fetal skin extract (OFSE). Sixty-four standardized burn wounds were created on the dorsum of 16 rats and were subsequently inoculated with Staphyloccocus aureus and Pseudomonas aeruginosa. After 48 hr, the wounds were surgically debrided and received either physiologic saline (control group) or SSD, OAPM+SSD, OAPM+H+SSD, and OAPM+H+OFSE+SSD. The healing wounds were evaluated for size, bacterial counts, histopathology, and biomechanical properties on days 3, 7, 14, 21, and 28 after surgery. All treatments had effectively reduced the level of S. aureus and P. aeruginosa on wounds compared to the control group by day 3 and 7. The wounds treated with combined application of OAPM+H+OFSE+SSD demonstrated considerable inflammation reduction, fibroplasia, complete re-epithelialization, and wound contraction together with significantly lesser scar tissue formation. Treatment with OAPM+H+OFSE+SSD showed superior biomechanical properties of the healing wounds. The findings suggested that the synergistic effect of dressing the wounds with OAPM, H, and OFSE was a very effective approach in accelerating the healing process of the experimentally induced infected full-thickness burn wounds in rats.
Collapse
Affiliation(s)
- Behrooz Nikahval
- Department of Clinical Studies, School of Veterinary Medicine, Shiraz University, Shiraz, Iran;
| | - Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Parastoo Memarian
- Department of Clinical Studies, School of Veterinary Medicine, Shiraz University, Shiraz, Iran;
| | - Amir Kamali
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| |
Collapse
|
13
|
Shafiee A, Cavalcanti AS, Saidy NT, Schneidereit D, Friedrich O, Ravichandran A, De-Juan-Pardo EM, Hutmacher DW. Convergence of 3D printed biomimetic wound dressings and adult stem cell therapy. Biomaterials 2020; 268:120558. [PMID: 33307369 DOI: 10.1016/j.biomaterials.2020.120558] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023]
Abstract
Biomimetically designed medical-grade polycaprolactone (mPCL) dressings are 3D-printed with pore architecture and anisotropic mechanical characteristics that favor skin wound healing with reduced scarring. Melt electrowritten mPCL dressings are seeded with human gingival tissue multipotent mesenchymal stem/stromal cells and cryopreserved using a clinically approved method. The regenerative potential of fresh or frozen cell-seeded mPCL dressing is compared in a splinted full-thickness excisional wound in a rat model over six weeks. The application of 3D-printed mPCL dressings decreased wound contracture and significantly improved skin regeneration through granulation and re-epithelialization compared to control groups. Combining 3D-printed biomimetic wound dressings and precursor cell delivery enhances physiological wound closure with reduced scar tissue formation.
Collapse
Affiliation(s)
- Abbas Shafiee
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, QLD, 4059, Australia; UQ Diamantina Institute, Translational Research Institute, The University of Queensland, Brisbane, QLD, 4102, Australia; Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane, QLD, 4029, Australia.
| | - Amanda S Cavalcanti
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, QLD, 4059, Australia
| | - Navid T Saidy
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, QLD, 4059, Australia; The University of Queensland, School of Dentistry, Herston, Queensland, Australia
| | - Dominik Schneidereit
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nuremberg, Paul-Gordan-Str.3, 91052, Erlangen, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nuremberg, Paul-Gordan-Str.3, 91052, Erlangen, Germany
| | - Akhilandeshwari Ravichandran
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, QLD, 4059, Australia
| | - Elena M De-Juan-Pardo
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, QLD, 4059, Australia
| | - Dietmar W Hutmacher
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, QLD, 4059, Australia; Australian Research Council (ARC) Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Kelvin Grove, QLD, 4059, Australia.
| |
Collapse
|
14
|
Antimicrobial and anti-inflammatory activities of australian native plants in the context of wound healing: A review. Biologia (Bratisl) 2020. [DOI: 10.2478/s11756-020-00636-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
15
|
Wu K, Zhao D, Cui H. Preparation and evaluation of heparinized sponge based on collagen and chitosan for wound healing. J BIOACT COMPAT POL 2020. [DOI: 10.1177/0883911520939983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The wound dressing can temporarily replace the skin and play a protective role in the process of wound healing, preventing wound infection and inflammation, and providing a favorable environment for wound healing. In this study, a mixture of collagen and chitosan was lyophilized to be the host material of the sponge. This sponge was soaked into 1-ethyl-(dimethylaminopropyl) carbodiimide/N-hydroxy sulfosuccinimide cross-linking solution containing heparin and experienced secondary lyophilization to prepare the heparinized sponge (CT-CL/Hp). The surface morphology and structural characterization of the sponge was characterized by scanning electron microscope and Fourier transform infrared spectrometer, respectively. Relatively favorable water absorption capability were observed by measuring the physical properties. Satisfactory antibacterial properties against various bacteria and microbial isolation performance were observed by the antibacterial effect analysis in vitro. The sustained-release property of heparin from the sponges was measured using Alcian Blue assay. Experiments in vitro and in vivo showed that the sponges had satisfactory biocompatibility and lower sensitization. Moreover, the effect of sponge on early stages of wound healing was evaluated by guinea pigs wound healing models. Analysis of wound healing rates and histological examination showed satisfactory results. CT-CL/Hp enhanced expression of growth factors, particularly VEGF and EGF at day 7. These results demonstrated that CT-CL/Hp–treated sponges benefit to wound skin healing and regeneration.
Collapse
Affiliation(s)
- Kun Wu
- Institute of Biochemical and Biotechnological Drugs, School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Dan Zhao
- Institute of Biochemical and Biotechnological Drugs, School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
- Pharmacology Department, New Drug Evaluation Center, Shandong Academy of Pharmaceutical Sciences, Jinan, China
| | - Huifei Cui
- Institute of Biochemical and Biotechnological Drugs, School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| |
Collapse
|
16
|
Gould L, Li WW. Defining complete wound closure: Closing the gap in clinical trials and practice. Wound Repair Regen 2019; 27:201-224. [DOI: 10.1111/wrr.12707] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 02/11/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Lisa Gould
- South Shore Hospital Center for Wound Healing Weymouth Massachusetts
| | | |
Collapse
|
17
|
Polysaccharide-based film loaded with vitamin C and propolis: A promising device to accelerate diabetic wound healing. Int J Pharm 2018; 552:340-351. [DOI: 10.1016/j.ijpharm.2018.10.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/13/2018] [Accepted: 10/06/2018] [Indexed: 01/07/2023]
|
18
|
Stone R, Wall JT, Natesan S, Christy RJ. PEG-Plasma Hydrogels Increase Epithelialization Using a Human Ex Vivo Skin Model. Int J Mol Sci 2018; 19:ijms19103156. [PMID: 30322172 PMCID: PMC6213988 DOI: 10.3390/ijms19103156] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 10/06/2018] [Accepted: 10/12/2018] [Indexed: 12/27/2022] Open
Abstract
In vitro cell culture methods are used extensively to study cellular migration, proliferation, and differentiation, which play major roles in wound healing but the results often do not translate to the in vivo environment. One alternative would be to establish an ex vivo model utilizing human discarded skin to evaluate therapies in a more natural setting. The purpose of this study was to institute such a model by creating ‘wounds’ in the center of a piece of discarded skin and treating them with three different biomaterials: collagen, polyethylene glycol (PEG)-fibrin, or PEG-platelet free plasma (PFP). Explants were cultured for 14 days with supernatant and microscopy images collected every 3 days to assess cytotoxicity and epithelialization. After 14 days, the explants were fixed, sectioned, and stained for cytokeratin-10 (CK-10), alpha-smooth muscle actin (α-SMA), and wheat germ (WG). Compared to controls, similar levels of cytotoxicity were detected for 12 days which decreased slightly at day 14. The PEG-PFP hydrogel-treated wounds epithelialized faster than other treatments at days 6 to 14. A 6-8 cell layer thick CK-10+ stratified epidermis had developed over the PEG-PFP hydrogel and cells co-stained by WG and α-SMA were observed within the hydrogel. An ex vivo model was established that can be used practically to screen different therapies exploring wound healing.
Collapse
Affiliation(s)
- Randolph Stone
- Combat Trauma and Burn Injury Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, TX 78234-6315, USA.
| | | | | | | |
Collapse
|
19
|
Liarou E, Varlas S, Skoulas D, Tsimblouli C, Sereti E, Dimas K, Iatrou H. Smart polymersomes and hydrogels from polypeptide-based polymer systems through α-amino acid N-carboxyanhydride ring-opening polymerization. From chemistry to biomedical applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.05.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
20
|
Gong CP, Li SC, Wang RY. Development of biosynthesized silver nanoparticles based formulation for treating wounds during nursing care in hospitals. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 183:137-141. [PMID: 29705505 DOI: 10.1016/j.jphotobiol.2018.04.030] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 04/17/2018] [Accepted: 04/17/2018] [Indexed: 01/19/2023]
Abstract
Silver nanoparticles (AgNPs) have been emerged as significant wound healing agents because of their improved mechanical properties. However, the green synthesized silver nanoparticleshave reported significant wound healing action in Albino rats which was validated by the measurement of wound closure rate. Silver nanoparticles were efficiently synthesized using Euphorbia milii leaf extract. The UV-visible spectra recorded the effect of the reaction time on AgNPs synthesis and was indentified that the peak became shaper with an increase in time, which corresponds to increase in the number of nanoparticles formed from the reduction of silver ions present in the aqueous solution. X-ray diffraction technique and corresponding XRD patterns confirmed the biphasic nature of the biosynthesized silver nanoparticles. However, low magnification TEM images presented monodispersed AgNPs with their size ranging from 20 to 30 nm while SAED diffraction pattern disclosed their crystalline nature. Furthermore, the wound healing activity of AgNPs was examined through the excision wound model by measuring the rate of wound closure and Group II (treated with 10% Ointment base with biosynthesized AgNPs) revealed significant wound healing activity over Control group and Group I (treated with Standard Nitrofurazone ointment) in Albino rats.
Collapse
Affiliation(s)
- Cui-Ping Gong
- Department of Gynaecology, Linyi Central Hospital, Linyi 276400, Shandong, China
| | - Shou-Cun Li
- Department of Gynaecology, Linyi Central Hospital, Linyi 276400, Shandong, China
| | - Rong-Ye Wang
- Operation Room, Linyi Central Hospital, Linyi 276400, Shandong, China.
| |
Collapse
|
21
|
Instructive microenvironments in skin wound healing: Biomaterials as signal releasing platforms. Adv Drug Deliv Rev 2018; 129:95-117. [PMID: 29627369 DOI: 10.1016/j.addr.2018.03.012] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/16/2018] [Accepted: 03/27/2018] [Indexed: 12/16/2022]
Abstract
Skin wound healing aims to repair and restore tissue through a multistage process that involves different cells and signalling molecules that regulate the cellular response and the dynamic remodelling of the extracellular matrix. Nowadays, several therapies that combine biomolecule signals (growth factors and cytokines) and cells are being proposed. However, a lack of reliable evidence of their efficacy, together with associated issues such as high costs, a lack of standardization, no scalable processes, and storage and regulatory issues, are hampering their application. In situ tissue regeneration appears to be a feasible strategy that uses the body's own capacity for regeneration by mobilizing host endogenous stem cells or tissue-specific progenitor cells to the wound site to promote repair and regeneration. The aim is to engineer instructive systems to regulate the spatio-temporal delivery of proper signalling based on the biological mechanisms of the different events that occur in the host microenvironment. This review describes the current state of the different signal cues used in wound healing and skin regeneration, and their combination with biomaterial supports to create instructive microenvironments for wound healing.
Collapse
|
22
|
Zhang Z, Zheng Y, Li Y, Bai H, Ma T, Song X, Zhao J, Gao L. The effects of sodium usnic acid by topical application on skin wound healing in rats. Biomed Pharmacother 2018; 97:587-593. [DOI: 10.1016/j.biopha.2017.10.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/15/2017] [Accepted: 10/21/2017] [Indexed: 01/09/2023] Open
|
23
|
Sultan MT, Jeong JY, Seo YB, Lee OJ, Ju HW, Park HJ, Lee YJ, Lee JS, Kim SH, Park CH. Fabrication and characterization of the porous duck’s feet collagen sponge for wound healing applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:960-971. [DOI: 10.1080/09205063.2017.1367636] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Md. Tipu Sultan
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Ju Yeon Jeong
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Ye Been Seo
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Ok Joo Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Hyung Woo Ju
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Hyun Jung Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Young Jin Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Ji Seung Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Soon Hee Kim
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Chan Hum Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Republic of Korea
| |
Collapse
|
24
|
Athanerey A, Patra PK, Kumar A. Mesenchymal stem cell in venous leg ulcer: An intoxicating therapy. J Tissue Viability 2017; 26:216-223. [PMID: 28619238 DOI: 10.1016/j.jtv.2017.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 05/19/2017] [Accepted: 06/02/2017] [Indexed: 12/11/2022]
Abstract
Venous leg ulcers (VLU) are a prevalent and reoccurring type of complicated wound, turning as a considerable public healthcare issue, with critical social and economic concern. There are both medical and surgical therapies to treat venous leg ulcers; however, a cure does not yet exist. Mesenchymal stem cells (MSC) are capable and proved of accelerating wound healing in vivo and their study with human chronic wounds is currently awaited. MSCs are a promising source of adult progenitor cells for cellular therapy and have been demonstrated to differentiate into various mesenchymal cell lineages. They have a crucial and integral role in native wound healing by regulating immune response and inflammation. Improved understanding of the cellular and molecular mechanisms at work in delayed wound healing compels to the development of cellular therapy in VLU. This review focuses on the current treatment option of VLU and further emphasizing the role of MSCs in accelerating the healing process. With further understanding of the mechanism of action of these cells in wound improvement and, the involvement of cytokines can also be revealed that could be used for the therapeutic purpose for VLU healing. Clinical uses of MSCs have been started already, and induced MSCs are surely a promising tool or compelling therapy for VLU.
Collapse
Affiliation(s)
- Anjali Athanerey
- Department of Biotechnology, National Institute of Technology Raipur, Chhattisgarh, India
| | - Pradeep Kumar Patra
- Department of Biochemistry, Pt. JNM Medical College, Raipur, Chhattisgarh, India
| | - Awanish Kumar
- Department of Biotechnology, National Institute of Technology Raipur, Chhattisgarh, India.
| |
Collapse
|
25
|
Zhang J, Zhang D, Yan T, Jiang X, Zhang C, Zhao L, Li L, Tang D, Zhang Q, Jia J, Zhang J, Huang Y. BNIP3 promotes the motility and migration of keratinocyte under hypoxia. Exp Dermatol 2017; 26:416-422. [PMID: 27783443 DOI: 10.1111/exd.13248] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Junhui Zhang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Dongxia Zhang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Tiantian Yan
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Xupin Jiang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Can Zhang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Liping Zhao
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Lingfei Li
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Di Tang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Qiong Zhang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Jiezhi Jia
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Jiaping Zhang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| | - Yuesheng Huang
- Institute of Burn Research; State Key Laboratory of Trauma, Burns and Combined Injury; Southwest Hospital; Third Military Medical University; Chongqing China
| |
Collapse
|
26
|
Zhou H, You C, Wang X, Jin R, Wu P, Li Q, Han C. The progress and challenges for dermal regeneration in tissue engineering. J Biomed Mater Res A 2017; 105:1208-1218. [PMID: 28063210 DOI: 10.1002/jbm.a.35996] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 12/30/2016] [Accepted: 01/03/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Hanlei Zhou
- Department of Burns; 2nd Affiliated Hospital of Zhejiang University, College of Medicine; Hangzhou 310009 China
| | - Chuangang You
- Department of Burns; 2nd Affiliated Hospital of Zhejiang University, College of Medicine; Hangzhou 310009 China
| | - Xingang Wang
- Department of Burns; 2nd Affiliated Hospital of Zhejiang University, College of Medicine; Hangzhou 310009 China
| | - Ronghua Jin
- Department of Burns; 2nd Affiliated Hospital of Zhejiang University, College of Medicine; Hangzhou 310009 China
| | - Pan Wu
- Department of Burns; 2nd Affiliated Hospital of Zhejiang University, College of Medicine; Hangzhou 310009 China
| | - Qiong Li
- Department of Burns; 2nd Affiliated Hospital of Zhejiang University, College of Medicine; Hangzhou 310009 China
| | - Chunmao Han
- Department of Burns; 2nd Affiliated Hospital of Zhejiang University, College of Medicine; Hangzhou 310009 China
| |
Collapse
|
27
|
Lee JM, Chae T, Sheikh FA, Ju HW, Moon BM, Park HJ, Park YR, Park CH. Three dimensional poly(ε-caprolactone) and silk fibroin nanocomposite fibrous matrix for artificial dermis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:758-767. [DOI: 10.1016/j.msec.2016.06.019] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 05/01/2016] [Accepted: 06/05/2016] [Indexed: 12/13/2022]
|
28
|
Harvey AC, Madsen J, Douglas CWI, MacNeil S, Armes SP. Antimicrobial Graft Copolymer Gels. Biomacromolecules 2016; 17:2710-8. [DOI: 10.1021/acs.biomac.6b00760] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amanda C. Harvey
- Department
of Chemistry, Dainton Building, University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, United Kingdom
- Unit
of Oral and Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield,
South Yorkshire, S10 2TA, United Kingdom
- The
Kroto Research Institute, Department of Engineering Materials, University of Sheffield, Broad Lane, Sheffield, South
Yorkshire, S3 7HQ, United Kingdom
| | - Jeppe Madsen
- Department
of Chemistry, Dainton Building, University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, United Kingdom
| | - C. W. Ian Douglas
- Unit
of Oral and Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield,
South Yorkshire, S10 2TA, United Kingdom
| | - Sheila MacNeil
- The
Kroto Research Institute, Department of Engineering Materials, University of Sheffield, Broad Lane, Sheffield, South
Yorkshire, S3 7HQ, United Kingdom
| | - Steven P. Armes
- Department
of Chemistry, Dainton Building, University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, United Kingdom
| |
Collapse
|
29
|
Zollino I, Zuolo M, Gianesini S, Pedriali M, Sibilla MG, Tessari M, Carinci F, Occhionorelli S, Zamboni P. Autologous adipose-derived stem cells: Basic science, technique, and rationale for application in ulcer and wound healing. Phlebology 2016; 32:160-171. [PMID: 27056621 DOI: 10.1177/0268355516641546] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objectives The present review represents a translational boundary between basic research and surgery, particularly focusing on the promising application of adipose-derived stem cells harvested intra-operatively during debridement of venous leg ulcers. Methods We reviewed 830 out of 5578 articles on MEDLINE starting from 1997 and sorted by the relevance option. Results The technique currently used for adipose-derived stem cells intra-operative harvesting is presented, including a safety evaluation on a cohort of 5089 revised patients who underwent plastic surgery and maxillo-facial surgical procedures. Complications were reported in 169 cases (3.3%). One hundred and forty-one (2.77%) patients were classified as having minor complications, specifically: nodularity/induration 93 (1.83%), dysesthesia 14 (0.26%), hematoma 12 (0.23%), superficial infection 11 (0.21%), pain 7 (0.13%), poor cosmesis 3 (0.06%), and abnormal breast secretion 1 (0.02%), while 28 patients (0.55%) were classified as having major complications, specifically: deep infection 22 (0.43%), sepsis 3 (0.06%), abdominal hematoma 2 (0.04%), and pneumothorax 1 (0.02%). Application of cell therapy in venous leg ulcer is currently used only for patients not responding to the standard treatment. The review shows the lack of randomized clinical trials for application of adipose-derived stem cells among treatments for venous leg ulcer. Finally, adipose-derived stem cells implantation at the wound site promotes a new tissue formation rich in vascular structures and remodeling collagen. Conclusion Adipose-derived stem cells strategy represents a great opportunity for the treatment of chronic wounds, due to the simplicity of the technique and the application of cell treatment in the operating room immediately following debridement. However, clinical studies and data from randomized trials are currently lacking.
Collapse
Affiliation(s)
- Ilaria Zollino
- 1 Department of Morphology, Surgery and Experimental Medicine, Section of Translational of Medicine and Surgery, University of Ferrara, Italy
| | - Michele Zuolo
- 2 Unit of Translational Surgery and Vascular Diseases Center, Sant'Anna University Hospital, Ferrara, Italy
| | - Sergio Gianesini
- 1 Department of Morphology, Surgery and Experimental Medicine, Section of Translational of Medicine and Surgery, University of Ferrara, Italy.,2 Unit of Translational Surgery and Vascular Diseases Center, Sant'Anna University Hospital, Ferrara, Italy
| | - Massimo Pedriali
- 3 Department of Experimental and Diagnostic Medicine, Sant'Anna University Hospital, Ferrara, Italy
| | - Maria Grazia Sibilla
- 2 Unit of Translational Surgery and Vascular Diseases Center, Sant'Anna University Hospital, Ferrara, Italy
| | - Mirko Tessari
- 1 Department of Morphology, Surgery and Experimental Medicine, Section of Translational of Medicine and Surgery, University of Ferrara, Italy.,2 Unit of Translational Surgery and Vascular Diseases Center, Sant'Anna University Hospital, Ferrara, Italy
| | - Francesco Carinci
- 1 Department of Morphology, Surgery and Experimental Medicine, Section of Translational of Medicine and Surgery, University of Ferrara, Italy
| | - Savino Occhionorelli
- 1 Department of Morphology, Surgery and Experimental Medicine, Section of Translational of Medicine and Surgery, University of Ferrara, Italy.,2 Unit of Translational Surgery and Vascular Diseases Center, Sant'Anna University Hospital, Ferrara, Italy
| | - Paolo Zamboni
- 1 Department of Morphology, Surgery and Experimental Medicine, Section of Translational of Medicine and Surgery, University of Ferrara, Italy.,2 Unit of Translational Surgery and Vascular Diseases Center, Sant'Anna University Hospital, Ferrara, Italy
| |
Collapse
|
30
|
Use of a Tissue Engineered Human Skin Model to Investigate the Effects of Wounding and of an Anti-Inflammatory on Melanoma Cell Invasion. PLoS One 2016; 11:e0156931. [PMID: 27270229 PMCID: PMC4896440 DOI: 10.1371/journal.pone.0156931] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 05/20/2016] [Indexed: 01/21/2023] Open
Abstract
An increasing number of studies suggest inflammation stimulates tumour invasion. In melanoma, despite recent advances in targeted therapy and immunomodulatory therapies, this cancer remains difficult to treat. Our previous studies show melanoma cells interact with skin cells in their invasion into tissue engineered skin and suggest inflammation stimulates invasion. The aim of this study was to investigate the use of an anti-inflammatory on melanoma invasion. To do this we developed a wounded and inflamed in vitro 3D melanoma model in which to investigate the use of an anti-inflammatory on melanoma invasion. The tissue engineered skin model was based on human de-epidermised acellular dermis to which keratinocytes, fibroblasts and three different melanoma cell lines were added in various combinations. A simple incisional wound was made in the model and TNF-α and fibrin were added to simulate conditions of inflammation. Topical ibuprofen in a hydrogel was added and the extent of melanoma invasion into the dermis was assessed under the various conditions. The results showed that penetration of two of the cell lines (HBL and A375SM) into the tissue engineered skin was exacerbated by wounding and ibuprofen significantly decreased invasion of A375SM cells and slightly reduced invasion of HBL cells. A third cell line, C8161, was aggressively invasive under all conditions to an extent that was not influenced by wounding, TNF-α or the addition of ibuprofen. In summary, the results for one these cell lines (and a trend for a second cell line) support the hypothesis that a wound environment is conducive to melanoma invasion but the local addition of an anti-inflammatory drug such as ibuprofen may attenuate invasion.
Collapse
|
31
|
The use of PriMatrix, a fetal bovine acellular dermal matrix, in healing chronic diabetic foot ulcers: a prospective multicenter study. Adv Skin Wound Care 2016; 27:356-62. [PMID: 25033310 DOI: 10.1097/01.asw.0000451891.87020.69] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The objective of this multicenter study was to prospectively evaluate the healing outcomes of chronic diabetic foot ulcers (DFUs) treated with PriMatrix (TEI Biosciences, Boston, Massachusetts), a fetal bovine acellular dermal matrix. METHODS Inclusion criteria required the subjects to have a chronic DFU that ranged in area from 1 to 20 cm² and failed to heal more than 30% during a 2-week screening period when treated with moist wound therapy. For qualifying subjects, PriMatrix was secured into a clean, sharply debrided wound; dressings were applied to maintain a moist wound environment, and the DFU was pressure off-loaded. Wound area measurements were taken weekly for up to 12 weeks, and PriMatrix was reapplied at the discretion of the treating physician. RESULTS A total of 55 subjects were enrolled at 9 US centers with 46 subjects progressing to study completion. Ulcers had been in existence for an average of 286 days, and initial mean ulcer area was 4.34 cm². Of the subjects completing the study, 76% healed by 12 weeks with a mean time to healing of 53.1 ± 21.9 days. The mean number of applications for these healed wounds was 2.0 ± 1.4, with 59.1% healing with a single application of PriMatrix and 22.9% healing with 2 applications. For subjects not healed by 12 weeks, the average wound area reduction was 71.4%. CONCLUSION The results of this multicenter prospective study demonstrate that the use of PriMatrix integrated with standard-of-care therapy is a successful treatment regimen to heal DFUs.
Collapse
|
32
|
Driver VR, Lavery LA, Reyzelman AM, Dutra TG, Dove CR, Kotsis SV, Kim HM, Chung KC. A clinical trial of Integra Template for diabetic foot ulcer treatment. Wound Repair Regen 2015; 23:891-900. [PMID: 26297933 DOI: 10.1111/wrr.12357] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 08/12/2015] [Indexed: 11/29/2022]
Abstract
Individuals with diabetes mellitus are at an increased risk of developing a diabetic foot ulcer (DFU). This study evaluated the safety and efficacy of Integra Dermal Regeneration Template (IDRT) for the treatment of nonhealing DFUs. The Foot Ulcer New Dermal Replacement Study was a multicenter, randomized, controlled, parallel group clinical trial conducted under an Investigational Device Exemption. Thirty-two sites enrolled and randomized 307 subjects with at least one DFU. Consented patients were entered into the 14-day run-in phase where they were treated with the standard of care (0.9% sodium chloride gel) plus a secondary dressing and an offloading/protective device. Patients with less than 30% reepithelialization of the study ulcer after the run-in phase were randomized into the treatment phase. The subjects were randomized to the control treatment group (0.9% sodium chloride gel; n = 153) or the active treatment group (IDRT, n = 154). The treatment phase was 16 weeks or until confirmation of complete wound closure (100% reepithelialization of the wound surface), whichever occurred first. Following the treatment phase, all subjects were followed for 12 weeks. Complete DFU closure during the treatment phase was significantly greater with IDRT treatment (51%) than control treatment (32%; p = 0.001) at sixteen weeks. The median time to complete DFU closure was 43 days for IDRT subjects and 78 days for control subjects in wounds that healed. The rate of wound size reduction was 7.2% per week for IDRT subjects vs. 4.8% per week for control subjects (p = 0.012). For the treatment of chronic DFUs, IDRT treatment decreased the time to complete wound closure, increased the rate of wound closure, improved components of quality of life and had less adverse events compared with the standard of care treatment. IDRT could greatly enhance the treatment of nonhealing DFUs.
Collapse
Affiliation(s)
- Vickie R Driver
- Department of Orthopedic Surgery (Clinical), Brown University Alpert School of Medicine, Providence, Rhode Island
| | - Lawrence A Lavery
- Department of Plastic Surgery, University of Texas Southwestern, Dallas, Texas
| | - Alexander M Reyzelman
- Department of Medicine, California School of Podiatric Medicine and UCSF Center for Limb Preservation, California School of Podiatric Medicine at Samuel Merritt University, Oakland, California
| | - Timothy G Dutra
- Applied Biomechanics, California School of Podiatric Medicine at Samuel Merritt University, Oakland, California
| | | | - Sandra V Kotsis
- Section of Plastic Surgery, Department of Surgery, The University of Michigan Medical School
| | - Hyungjin Myra Kim
- Center for Statistical Consultation and Research, The University of Michigan, Ann Arbor, Michigan
| | - Kevin C Chung
- Section of Plastic Surgery, Department of Surgery, The University of Michigan Medical School
| |
Collapse
|
33
|
Saijo H, Hayashida K, Morooka S, Fujioka M. Combined treatment with artificial dermis and basic fibroblast growth factor for cranial bone-exposing wounds. J Tissue Viability 2015; 24:173-9. [PMID: 26342974 DOI: 10.1016/j.jtv.2015.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 06/16/2015] [Accepted: 08/23/2015] [Indexed: 01/21/2023]
Abstract
AIM OF THE STUDY Cranial bone-exposing wounds should be resurfaced as soon as possible using flaps. However, early one-stage wound closure is sometimes difficult due to the poor general condition of the patient or equipment shortages. Artificial dermis composed of atelocollagen sponge is useful for reconstructing bone-exposing wounds. In addition, the treatment of wounds with basic fibroblast growth factor helps more severe wounds to heal faster. We employed combined treatment with artificial dermis and basic fibroblast growth factor to treat cranial bone-exposing wounds in 2 cases, and we describe these cases here. MATERIALS AND METHODS Case 1: A 56-year-old man suffered severe burns, which exposed the occipital bone and mandible, after attempting suicide. Case 2: A 79-year-old woman suffered a full-thickness skin defect on her forehead due to a fall, which resulted in her frontal bone being exposed. Both patients underwent combined treatment with artificial dermis and basic fibroblast growth factor, followed by free skin grafting. RESULTS The combined treatment promoted the formation of granulation tissue, which acted as a wound bed for the subsequent skin grafting. The free skin grafting resulted in the complete resurfacing of the patients' wounds. CONCLUSION Combined treatment with artificial dermis and bFGF is an easy, fast-acting, and effective way of preparing a favorable wound bed for skin grafting, and hence, is useful for the treatment of cranial bone-exposing wounds.
Collapse
Affiliation(s)
- Hiroto Saijo
- Department of Plastic and Reconstructive Surgery, National Hospital Organization, Nagasaki Medical Center, Japan.
| | - Kenji Hayashida
- Department of Plastic and Reconstructive Surgery, National Hospital Organization, Nagasaki Medical Center, Japan
| | - Shin Morooka
- Department of Plastic and Reconstructive Surgery, National Hospital Organization, Nagasaki Medical Center, Japan
| | - Masaki Fujioka
- Department of Plastic and Reconstructive Surgery, National Hospital Organization, Nagasaki Medical Center, Japan
| |
Collapse
|
34
|
Perini JA, Angeli-Gamba T, Alessandra-Perini J, Ferreira LC, Nasciutti LE, Machado DE. Topical application of Acheflan on rat skin injury accelerates wound healing: a histopathological, immunohistochemical and biochemical study. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:203. [PMID: 26122670 PMCID: PMC4486146 DOI: 10.1186/s12906-015-0745-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 06/24/2015] [Indexed: 12/12/2022]
Abstract
Background Dermal wound healing involves a cascade of complex events including angiogenesis and extracellular matrix remodeling. Several groups have focused in the study of the skin wound healing activity of natural products. The phytomedicine Acheflan®, and its main active constituent is the oil from Cordia verbenacea which has known anti-inflammatory, analgesic and antimicrobial activities. To our knowledge, no investigation has evaluated the effect of Acheflan® in an experimental model of skin wound healing. The present study has explored the wound healing property of Acheflan® and has compared it with topical effectiveness of collagenase and fibrinolysin by using Wistar rat cutaneous excision wound model. Methods Animals were divided into four groups: untreated animals are negative control (NC), wounds were treated topically every day with Collagenase ointment (TC), with Fibrinolysin ointment (TF) and with cream Acheflan (TAc). Skin samples were collected on zero, 8th and 15th days after wounding. The healing was assessed by hematoxylin-eosin (HE), picrosirius red, hydoxyproline content and immunohistochemical analysis of the vascular endothelial growth factor (VEGF) and matrix metalloprotease-9 (MMP-9). Statistical analysis was done by ANOVA and Student t-test (p < 0.05). Results The histological analysis HE of wound in the TAc group was more efficient because it was possible to observe the complete remodeling of the epidermis indicating the regression of lesions compared with the NC. The evaluation of picrosirius staining has demonstrated a significant increase of collagen distribution in the TC and TAc treatments compared with NC and TF groups. These results are corroborated with hydroxyproline content. Skin TC and TAc treated rats have showed an increase of VEGF and MMP-9 compared with NC and TF groups. All parameters were significant (P < 0.05). Conclusion The phytomedicine Acheflan® (oil of Cordia verbenacea) and TC possess higher therapeutic properties for wound healing compared with TF. These ointments seem to accelerate wound healing, probably due to their involvement with the increase of angiogenesis and dermal remodeling.
Collapse
|
35
|
Taghiabadi E, Mohammadi P, Aghdami N, Falah N, Orouji Z, Nazari A, Shafieyan S. Treatment of Hypertrophic Scar in Human with Autologous Transplantation of Cultured Keratinocytes and Fibroblasts along with Fibrin Glue. CELL JOURNAL 2015; 17:49-58. [PMID: 25870834 PMCID: PMC4393671 DOI: 10.22074/cellj.2015.511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 04/09/2014] [Indexed: 11/10/2022]
Abstract
Objective Hypertrophic scar involves excessive amounts of collagen in dermal layer and
may be painful. Nowadays, we can’t be sure about effectiveness of procedure for hypertrophic scar management. The application of stem cells with natural scaffold has been the
best option for treatment of burn wounds and skin defect, in recent decades. Fibrin glue
(FG) was among the first of the natural biomaterials applied to enhance skin deformity in
burn patients. This study aimed to identify an efficient, minimally invasive and economical
transplantation procedure using novel FG from human cord blood for treatment of hypertrophic scar and regulation collagen synthesis.
Materials and Methods In this case series study, eight patients were selected with hypertrophic scar due to full-thickness burns. Human keratinocytes and fibroblasts derived
from adult skin donors were isolated and cultured. They were tested for the expression of
cytokeratin 14 and vimentin using immunocytochemistry. FG was prepared from pooled
cord blood. Hypertrophic scars were extensively excised then grafted by simply placing
the sheet of FG containing autologous fibroblast and keratinocytes. Histological analyses
were performed using Hematoxylin and eosin (H&E) and Masson’s Trichrome (MT) staining of the biopsies after 8 weeks.
Results Cultured keratinocytes showed a high level of cytokeratin 14 expression and
also fibroblasts showed a high level of vimentin. Histological analyses of skin biopsies
after 8 weeks of transplantation revealed re-epithelialization with reduction of hypertrophic
scars in 2 patients.
Conclusion These results suggest may be the use of FG from cord blood, which is not
more efficient than previous biological transporters and increasing hypertrophic scar
relapse, but could lead to decrease pain rate.
Collapse
Affiliation(s)
- Ehsan Taghiabadi
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Parvaneh Mohammadi
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Nasser Aghdami
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Nasrin Falah
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Zahra Orouji
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Abdoreza Nazari
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Saeed Shafieyan
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| |
Collapse
|
36
|
Loss of keratinocyte focal adhesion kinase stimulates dermal proteolysis through upregulation of MMP9 in wound healing. Ann Surg 2015; 260:1138-46. [PMID: 25389925 DOI: 10.1097/sla.0000000000000219] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To investigate how epithelial mechanotransduction pathways impact wound repair. BACKGROUND Mechanical forces are increasingly recognized to influence tissue repair, but their role in chronic wound pathophysiology remains unknown. Studies have shown that chronic wounds exhibit high levels of matrix metalloproteinase 9 (MMP9), a key proteolytic enzyme that regulates wound remodeling. We hypothesized that epithelial mechanosensory pathways regulated by keratinocyte-specific focal adhesion kinase (FAK) control dermal remodeling via MMP9. METHODS A standard wound model was applied to keratinocyte-specific FAK knockout (KO) and control mice. Rates of wound healing were measured and tissue was obtained for histologic and molecular analyses. Transcriptional and immunoblot assays were used to assess the activation of FAK, intracellular kinases, and MMP9 in vitro. A cell suspension model was designed to validate the importance of FAK mechanosensing, p38, and MMP9 secretion in human cells. Biomechanical testing was utilized to evaluate matrix tensile properties in FAK KO and control wounds. RESULTS Wound healing in FAK KO mice was significantly delayed compared with controls (closure at 15 days compared with 20 days, P = 0.0003). FAK KO wounds demonstrated decreased dermal thickness and collagen density. FAK KO keratinocytes exhibited overactive p38 and MMP9 signaling in vitro, findings recapitulated in human keratinocytes via the deactivation of FAK in the cell suspension model. Functionally, FAK KO wounds were significantly weaker and more brittle than control wounds, results consistent with the histologic and molecular analyses. CONCLUSIONS Keratinocyte FAK is highly responsive to mechanical cues and may play a critical role in matrix remodeling via regulation of p38 and MMP9. These findings suggest that aberrant epithelial mechanosensory pathways may contribute to pathologic dermal proteolysis and wound chronicity.
Collapse
|
37
|
RNA interference mediated JAM-A gene silencing promotes human epidermal stem cell proliferation. Hum Cell 2014; 28:73-80. [DOI: 10.1007/s13577-013-0087-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 12/23/2013] [Indexed: 10/24/2022]
|
38
|
Schenck TL, Chávez MN, Condurache AP, Hopfner U, Rezaeian F, Machens HG, Egaña JT. A full skin defect model to evaluate vascularization of biomaterials in vivo. J Vis Exp 2014. [PMID: 25226211 DOI: 10.3791/51428] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Insufficient vascularization is considered to be one of the main factors limiting the clinical success of tissue-engineered constructs. In order to evaluate new strategies that aim at improving vascularization, reliable methods are required to make the in-growth of new blood vessels into bio-artificial scaffolds visible and quantify the results. Over the past couple of years, our group has introduced a full skin defect model that enables the direct visualization of blood vessels by transillumination and provides the possibility of quantification through digital segmentation. In this model, one surgically creates full skin defects in the back of mice and replaces them with the material tested. Molecules or cells of interest can also be incorporated in such materials to study their potential effect. After an observation time of one's own choice, materials are explanted for evaluation. Bilateral wounds provide the possibility of making internal comparisons that minimize artifacts among individuals as well as of decreasing the number of animals needed for the study. In comparison to other approaches, our method offers a simple, reliable and cost effective analysis. We have implemented this model as a routine tool to perform high-resolution screening when testing vascularization of different biomaterials and bio-activation approaches.
Collapse
Affiliation(s)
- Thilo L Schenck
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München
| | - Myra N Chávez
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München
| | | | - Ursula Hopfner
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München
| | - Farid Rezaeian
- Department of Plastic Surgery and Hand Surgery, University Hospital Zürich
| | - Hans-Günther Machens
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München
| | - José T Egaña
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München; FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile;
| |
Collapse
|
39
|
Sensors and imaging for wound healing: A review. Biosens Bioelectron 2013; 41:30-42. [DOI: 10.1016/j.bios.2012.09.029] [Citation(s) in RCA: 287] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 09/06/2012] [Accepted: 09/20/2012] [Indexed: 01/13/2023]
|
40
|
Hamuy R, Kinoshita N, Yoshimoto H, Hayashida K, Houbara S, Nakashima M, Suzuki K, Mitsutake N, Mussazhanova Z, Kashiyama K, Hirano A, Akita S. One-stage, simultaneous skin grafting with artificial dermis and basic fibroblast growth factor successfully improves elasticity with maturation of scar formation. Wound Repair Regen 2012; 21:141-54. [PMID: 23228143 DOI: 10.1111/j.1524-475x.2012.00864.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 09/27/2012] [Indexed: 11/29/2022]
Abstract
The efficacy of one-stage artificial dermis and skin grafting was tested in a nude rat model. Reconstruction with artificial dermis is usually a two-stage procedure with 2- to 3-week intermission. If one-stage use of artificial dermis and split-thickness skin grafting are effective, the overall burden on patients and the medical cost will markedly decrease. The graft take rate, contraction rate, tissue elasticity, histology, morphometric analysis of the dermal thickness, fibroblast counting, immunohistochemistry of α-smooth muscle actin, matrix metalloproteinase-2, CD31, and F4/80, as well as gelatin zymography, real-time reverse transcriptase polymerase chain reaction for matrix metalloproteinase-2, and electron microscopy, were investigated from day 3 to 3 months postoperatively. The graft take rate was good overall in one-stage artificial dermis and skin grafting groups up to 3 weeks, and the contraction rate was greater in the two-staged artificial dermis and skin grafting group than in the skin grafting alone or one stage of artificial dermis and skin grafting groups. Split-thickness skin grafting with artificial dermis and basic fibroblast growth factor at a concentration of 1 μg/cm(2) showed significantly greater elasticity by Cutometer, and the dermal thickness was significantly thinner, fibroblast counting was significantly greater, and the α-smooth muscle actin expression level was more notable with a more mature blood supply in the dermis and more organized dermal fibrils by electron microscopy at 3 weeks. Thus, one-stage artificial dermis and split-thickness skin grafting with basic fibroblast growth factor show a high graft take rate and better tissue elasticity determined by Cutometer analysis, maturity of the dermis, and increased fibroblast number and blood supply compared to a standard two-stage reconstruction.
Collapse
Affiliation(s)
- Rodrigo Hamuy
- Division of Plastic and Reconstructive Surgery, Department of Developmental and Reconstructive Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Agarwal A, Nelson TB, Kierski PR, Schurr MJ, Murphy CJ, Czuprynski CJ, McAnulty JF, Abbott NL. Polymeric multilayers that localize the release of chlorhexidine from biologic wound dressings. Biomaterials 2012; 33:6783-92. [PMID: 22784602 DOI: 10.1016/j.biomaterials.2012.05.068] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Accepted: 05/29/2012] [Indexed: 11/18/2022]
Abstract
Biologic wound dressings contain animal-derived components and are susceptible to high infection rates. To address this issue, we report an approach that permits incorporation of non-toxic levels of the small molecule antiseptic 'chlorhexidine' into biologic dressings. The approach relies on the fabrication of polyelectrolyte multilayer (PEMs) films containing poly(allylaminehydrochloride) (PAH), poly(acrylicacid) (PAA), and chlorhexidine acetate (CX) on elastomeric poly(dimethylsiloxane) (PDMS) sheets. The PEMs (20-100 nm thick) are subsequently stamped onto the wound-contact surface of a synthetic biologic dressing, Biobrane, which contains collagen peptides. Chlorhexidine loading in the PEMs was tailored by tuning the number of (CX/PAA) bilayers deposited, providing burst release of up to 0.98 ± 0.06 μg/cm(2) of CX over 24 h, followed by zero-order release of 0.35 ± 0.04 μg/cm(2)/day for another week. Although the CX concentrations released were below the reported in vitro cytotoxicity limit (5 μg/mL over 24 h) for human dermal fibroblasts, they killed 4 log(10) counts of pathogenic bacteria Staphylococcus aureus in solution. The CX/PEMs could be stamped onto Biobrane with high efficiency to provide CX release kinetics and in vitro antibacterial activity similar to that on PDMS stamps. In a full-thickness 'splinted' dermal wound-model in normal wild-type mice, the CX-functionalized Biobrane showed no decrease in either its adherence to the wound-bed or wound closure rate over 14 days. The murine wounds topically inoculated with ∼10(5) CFU/cm(2) of S. aureus and treated with CX-functionalized Biobrane demonstrated a 3 log(10) decrease in the wound's bacterial burden within 3 days, compared to persistent bacterial colonization found in wounds treated with unmodified Biobrane (n = 10 mice, p < 0.005). Overall, this study presents a promising approach to prevent bacterial colonization in wounds under biologic dressings.
Collapse
Affiliation(s)
- Ankit Agarwal
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, USA
| | | | | | | | | | | | | | | |
Collapse
|
42
|
The Use of Human Sweat Gland–Derived Stem Cells for Enhancing Vascularization during Dermal Regeneration. J Invest Dermatol 2012; 132:1707-16. [DOI: 10.1038/jid.2012.31] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
43
|
Zhao Y, Graf BW, Chaney EJ, Mahmassani Z, Antoniadou E, DeVolder R, Kong H, Boppart MD, Boppart SA. Integrated multimodal optical microscopy for structural and functional imaging of engineered and natural skin. JOURNAL OF BIOPHOTONICS 2012; 5:437-48. [PMID: 22371330 PMCID: PMC4486208 DOI: 10.1002/jbio.201200003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 02/07/2012] [Accepted: 02/07/2012] [Indexed: 05/21/2023]
Abstract
An integrated multimodal optical microscope is demonstrated for high-resolution, structural and functional imaging of engineered and natural skin. This microscope incorporates multiple imaging modalities including optical coherence (OCM), multi-photon (MPM), and fluorescence lifetime imaging microscopy (FLIM), enabling simultaneous visualization of multiple contrast sources and mechanisms from cells and tissues. Spatially co-registered OCM/MPM/FLIM images of multi-layered skin tissues are obtained, which are formed based on complementary information provided by different modalities, i.e., scattering information from OCM, molecular information from MPM, and functional cellular metabolism states from FLIM. Cellular structures in both the dermis and epidermis, especially different morphological and physiological states of keratinocytes from different epidermal layers, are revealed by mutually-validating images. In vivo imaging of human skin is also investigated, which demonstrates the potential of multimodal microscopy for in vivo investigation during engineered skin engraftment. This integrated imaging technique and microscope show the potential for investigating cellular dynamics in developing engineered skin and following in vivo grafting, which will help refine the control and culturing conditions necessary to obtain more robust and physiologically-relevant engineered skin substitutes.
Collapse
Affiliation(s)
- Youbo Zhao
- Biophotonics Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Benedikt W. Graf
- Biophotonics Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Eric J. Chaney
- Biophotonics Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Ziad Mahmassani
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Eleni Antoniadou
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Ross DeVolder
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Marni D. Boppart
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Stephen A. Boppart
- Biophotonics Imaging Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Internal Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Corresponding author: , Phone: +1 217 244 7479, Fax: +1 217 333 5833
| |
Collapse
|
44
|
Song A, Rane AA, Christman KL. Antibacterial and cell-adhesive polypeptide and poly(ethylene glycol) hydrogel as a potential scaffold for wound healing. Acta Biomater 2012; 8:41-50. [PMID: 22023748 DOI: 10.1016/j.actbio.2011.10.004] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 10/04/2011] [Accepted: 10/05/2011] [Indexed: 12/31/2022]
Abstract
The ideal wound-healing scaffold should provide the appropriate physical and mechanical properties to prevent secondary infection, as well as an excellent physiological environment to facilitate cell adhesion, proliferation and/or differentiation. Therefore, we developed a synthetic cell-adhesive polypeptide hydrogel with inherent antibacterial activity. A series of polypeptides, poly(Lys)(x)(Ala)(y) (x+y=100), with varied hydrophobicity via metal-free ring-opening polymerization of NCA-Lys(Boc) and NCA-Ala monomers (NCA=N-carboxylic anhydride) mediated by hexamethyldisilazane (HMDS) were synthesized. These polypeptides were cross-linked with 6-arm polyethylene glycol (PEG)-amide succinimidyl glutarate (ASG) (M(w)=10K) to form hydrogels with a gelation time of five minutes and a storage modulus (G') of 1400-3000 Pa as characterized by rheometry. The hydrogel formed by cross-linking of poly(Lys)(60)(Ala)(40) (5 wt.%) and 6-arm PEG-ASG (16 wt.%) (Gel-III) exhibited cell adhesion and cell proliferation activities superior to other polypeptide hydrogels. In addition, Gel-III displays significant antibacterial activity against Escherichia coli JM109 and Staphylococcus aureus ATCC25923. Thus, we have developed a novel, cell-adhesive hydrogel with inherent antibacterial activity as a potential scaffold for cutaneous wound healing.
Collapse
|
45
|
Andrews S, Lee JW, Prausnitz M. Recovery of skin barrier after stratum corneum removal by microdermabrasion. AAPS PharmSciTech 2011; 12:1393-400. [PMID: 22009306 DOI: 10.1208/s12249-011-9715-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Accepted: 10/10/2011] [Indexed: 11/30/2022] Open
Abstract
Microdermabrasion is widely used as a non-invasive cosmetic technique that has recently been adapted to selectively remove stratum corneum to increase skin permeability for transdermal drug delivery. This study measured the kinetics of skin barrier recovery after stratum corneum removal using microdermabrasion in hairless guinea pigs. The skin was abraded at two sites on each animal, one of which was allowed to recover under occlusion while the other remained non-occluded. Histological measurements showed that skin barrier properties to sulforhodamine B largely recovered within 12 h, and the stratum corneum appeared largely reformed within 24 h for both occluded and non-occluded skin. Skin electrical resistance measurements showed significant recovery of the skin barrier within 24 h. We conclude that transdermal drug delivery may occur for up to 12 h after microdermabrasion in guinea pigs; however, humans will probably have a longer recovery time due to expected slower skin healing rates.
Collapse
|
46
|
Stumpf U, Michaelis M, Klassert D, Cinatl J, Altrichter J, Windolf J, Hergenröther J, Scholz M. Selection of proangiogenic ascorbate derivatives and their exploitation in a novel drug-releasing system for wound healing. Wound Repair Regen 2011; 19:597-607. [DOI: 10.1111/j.1524-475x.2011.00718.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ulla Stumpf
- Department of Traumatology and Hand Surgery; Heinrich-Heine University; Düsseldorf; Germany
| | | | | | - Jindrich Cinatl
- Institute for Medical Virology; Johann Wolfgang Goethe University; Frankfurt/Main; Germany
| | | | - Joachim Windolf
- Department of Traumatology and Hand Surgery; Heinrich-Heine University; Düsseldorf; Germany
| | | | | |
Collapse
|
47
|
The effect of detergent-based decellularization procedures on cellular proteins and immunogenicity in equine carotid artery grafts. Biomaterials 2011; 32:9730-7. [PMID: 21944468 DOI: 10.1016/j.biomaterials.2011.09.015] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 09/06/2011] [Indexed: 12/14/2022]
Abstract
Decellularized equine carotid arteries (dEAC) may represent a reasonable alternative to alloplastic materials in vascular replacement therapy. Acellularity of the matrix is standardly evaluated by DNA quantification what however may not record sufficiently the degree of matrix immunogenicity. Thus, our aim was to analyze dEAC with a low DNA content for residual cellular proteins. A detergent-based decellularization protocol including endonuclease treatment resulted in dEAC with 0.6 ± 0.15 ng DNA/mg dry weight representing 0.33 ± 0.14% of native tissue DNA content. In contrast, when matrices were homogenized and extracted by high detergent concentrations westernblot analyses revealed cytosolic and cytosceleton proteins like GAPDH and smooth muscle actin which were depleted to 4.1 ± 1.9% and 13.8 ± 0.55%, resp. Also putative immunogenic MHC I complexes and the alpha-Gal epitop were reduced to only 14.8 ± 1.2% and 15.1 ± 2.05%. Mass spectrometry of matrix extracts identified 306 proteins belonging to cytosol, organelles, nucleus and cell membrane. Moreover, aqueous matrix extracts evoked a pronounced antibody formation when administered in mice and thus display high immunogenic potential. Our data indicate that an established decellularization protocol which results in acellular matrices evaluated by low DNA content reduces but not eliminates cellular components which may contribute to its immunogenic potential in vivo.
Collapse
|
48
|
Murano E, Perin D, Khan R, Bergamin M. Hyaluronan: From Biomimetic to Industrial Business Strategy. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600415] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hyaluronan (hyaluronic acid) is a naturally occurring polysaccharide of a linear repeating disaccharide unit consisting of β-(1→4)-linked D-glucopyranuronic acid and β-(1→3)-linked 2-acetamido-2-deoxy-D-glucopyranose, which is present in extracellular matrices, the synovial fluid of joints, and scaffolding that comprises cartilage. In its mechanism of synthesis, its size, and its physico-chemical properties, hyaluronan is unique amongst other glycosaminoglycans. The network-forming, viscoelastic and its charge characteristics are important to many biochemical properties of living tissues. It is an important pericellular and cell surface constituent; its interaction with other macromolecules such as proteins, participates in regulating cell behavior during numerous morphogenic, restorative, and pathological processes in the body. The knowledge of HA in diseases such as various forms of cancers, arthritis and osteoporosis has led to new impetus in research and development in the preparation of biomaterials for surgical implants and drug conjugates for targeted delivery. A concise and focused review on hyaluronan is timely. This review will cover the following important aspects of hyaluronan: (i) biological functions and synthesis in nature; (ii) current industrial production and potential biosynthetic processes of hyaluronan; (iii) chemical modifications of hyaluronan leading to products of commercial significance; and (iv) and the global market position and manufacturers of hyaluronan.
Collapse
Affiliation(s)
- Erminio Murano
- PROTOS Research Institute, via Flavia 23/1c/o BIC Incubatori FVG, 34148, Trieste, Italy
- NEALYS srl, via Flavia 23/1c/o BIC Incubatori FVG, 34148, Trieste, Italy
| | - Danilo Perin
- PROTOS Research Institute, via Flavia 23/1c/o BIC Incubatori FVG, 34148, Trieste, Italy
| | - Riaz Khan
- PROTOS Research Institute, via Flavia 23/1c/o BIC Incubatori FVG, 34148, Trieste, Italy
| | - Massimo Bergamin
- PROTOS Research Institute, via Flavia 23/1c/o BIC Incubatori FVG, 34148, Trieste, Italy
- NEALYS srl, via Flavia 23/1c/o BIC Incubatori FVG, 34148, Trieste, Italy
| |
Collapse
|
49
|
Surgical approaches to create murine models of human wound healing. J Biomed Biotechnol 2010; 2011:969618. [PMID: 21151647 PMCID: PMC2995912 DOI: 10.1155/2011/969618] [Citation(s) in RCA: 214] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2010] [Accepted: 10/26/2010] [Indexed: 02/06/2023] Open
Abstract
Wound repair is a complex biologic process which becomes abnormal in numerous disease states. Although in vitro models have been important in identifying critical repair pathways in specific cell populations, in vivo models are necessary to obtain a more comprehensive and pertinent understanding of human wound healing. The laboratory mouse has long been the most common animal research tool and numerous transgenic strains and models have been developed to help researchers study the molecular pathways involved in wound repair and regeneration. This paper aims to highlight common surgical mouse models of cutaneous disease and to provide investigators with a better understanding of the benefits and limitations of these models for translational applications.
Collapse
|
50
|
Marquardt C, Matuschek E, Bölke E, Gerber PA, Peiper M, V Seydlitz-Kurzbach J, Buhren BA, van Griensven M, Budach W, Hassan M, Kukova G, Mota R, Höfer D, Orth K, Fleischmann W. Evaluation of the tissue toxicity of antiseptics by the hen's egg test on the chorioallantoic membrane (HETCAM). Eur J Med Res 2010; 15:204-9. [PMID: 20562059 PMCID: PMC3352009 DOI: 10.1186/2047-783x-15-5-204] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background Antiseptics are frequently used for the prophylaxis and treatment of local infections of chronic wounds. Whereas local antiseptics in general have a positive effect on wound healing an uncritical use may impair wound healing due to toxic side effects. Objective We sought to assess the vascular irritation potential of different antiseptic solutions and ointments commonly used for short and long term application as a measure of tissue toxicity. Method The vascular irritation was evaluated by the hen's egg test (HET) on the chorioallantoic membrane (CAM). The effects on the vessels of a mucous membrane were directly assessed by stereomicroscopic observation in vivo. Results Severe CAM irritation was observed after short-term applications of 1% octenidin-2HCl (Octeni sept™), 72% isopropanol (Cutasept™), 0.35% chloroxylenol (Dettol™) and 10% PVP-I ointment (Betaisodona™). Medium irritations were observed for 10% PVP-I solution (Betaisodona™), 3% lysosomal PVP-I ointment (Repithel™), 1.8% cadexomer-iodine ointment (Iodosorb™) and 1% cadexomer-iodine pellets (Iodosorb™). Finally, slight irritations were observed for 1% PVP-I solution (Betaisodona™), 0.1% polyhexanid plus betain (Prontosan™) and 1% silver-sulfadiazine ointment (Flammazine™), whereas 0.04% polyhexanid solution (Lavanid™), washings from sterile maggots of Lucilia sericata and filtrated enzymes from Clostridium histolyticum (Iruxol-N™) showed no effects of irritation. In the long-term approaches, no vascular irritations were found for polyhexanid, washings from Lucilia sericata and enzyme filtrations from Clostridium histolyticum. Conclusion The vascular injuries caused by the studied antiseptics are an indirect indicator of their tissue toxicity. Strikingly, even therapeutic substances, which have been regarded as safe in their application for the treatment of chronic wounds in clinical studies, showed severe irritations on the CAM. We suggest that agents with no or low irritation potential on the CAM should be preferred in the clinical practice in order to obtain optimal results.
Collapse
Affiliation(s)
- C Marquardt
- Department of General and Visceral Surgery, Klinikum Ludwigsburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|