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Voorde WT, Wind S, Abdisalaam I, Mancini A, Linders F, Jansen MAA, Kolk TNVD, Burggraaf J, Rissmann R. A SUCTION BLISTER MODEL TO CHARACTERIZE EPIDERMAL WOUND HEALING AND EVALUATE THE EFFICACY OF THE TOPICAL WOUND HEALING AGENT INM-755 IN HEALTHY VOLUNTEERS. Eur J Pharm Sci 2024:106867. [PMID: 39084539 DOI: 10.1016/j.ejps.2024.106867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/15/2024] [Accepted: 07/27/2024] [Indexed: 08/02/2024]
Abstract
Non-healing wounds represent a substantial medical burden with few effective treatments available. To address this challenge, we developed a novel epidermal wound healing model using suction blisters in healthy volunteers. This model allowed for the comprehensive assessment of wound healing dynamics and the evaluation of INM-755, a topical cream containing cannabinol, as a potential therapeutic agent. Two clinical studies were conducted: an observational study and an interventional study. In both studies, healthy volunteers underwent a suction blister procedure on their lower back, creating open epidermal wounds. Wound healing parameters were assessed using advanced imaging systems. Skin barrier function and perfusion were evaluated through trans epidermal water loss (TEWL) and dynamic optical coherence tomography (D-OCT), respectively. The observational study demonstrated the successful and reproducible Induction of blisters and the removal of epidermal sheet, enabling quantifiable measurements of wound healing parameters over time. Re-epithelialization was observed, revealing recovery of skin barrier function and perfusion. In the interventional study, differences of treatments over time were quantified using the above-described techniques. Despite differences from disease-specific blistering, our developed model provides a valuable platform for studying wound healing mechanisms and assessing novel therapeutic interventions. The sensitivity to treatment effects demonstrated in our study underscores the potential utility of this model in early-phase clinical drug development programs targeting wound healing disorders.
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Affiliation(s)
- Wouter Ten Voorde
- Centre for Human Drug Research, Leiden, the Netherlands; Leiden University Medical Centre, Leiden, the Netherlands
| | - Selinde Wind
- Centre for Human Drug Research, Leiden, the Netherlands; Leiden University Medical Centre, Leiden, the Netherlands
| | - Ismahaan Abdisalaam
- Centre for Human Drug Research, Leiden, the Netherlands; Department of Dermatology, Erasmus Medical Center, Rotterdam, the Netherlands
| | | | - Feeke Linders
- Centre for Human Drug Research, Leiden, the Netherlands
| | | | | | - Jacobus Burggraaf
- Centre for Human Drug Research, Leiden, the Netherlands; Leiden University Medical Centre, Leiden, the Netherlands
| | - Robert Rissmann
- Centre for Human Drug Research, Leiden, the Netherlands; Leiden University Medical Centre, Leiden, the Netherlands; Leiden Academic Center for Drug Research, Leiden University, Leiden, The Netherlands.
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Amoupour M, Brouki Milan P, Barati M, Hivechi A, Rajabi Fomeshi M, Kiani Ghalesardi O, Ahmadvand D, Karkuki Osguei N, Samadikuchaksaraei A. Suppression of SOCS3 expression in macrophage cells: Potential application in diabetic wound healing. Int J Biol Macromol 2024; 262:129876. [PMID: 38310055 DOI: 10.1016/j.ijbiomac.2024.129876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 01/09/2024] [Accepted: 01/25/2024] [Indexed: 02/05/2024]
Abstract
Impaired polarization of M1 to M2 macrophages has been reported in diabetic wounds. We aimed to improve this polarization by down-regulation of expression of the "Suppressor of Cytokine Signaling 3" (SOCS3) gene in macrophages. Two oligodeoxynucleotide (ASO) sequences were designed against SOC3 mRNA and were loaded to mannosylated-polyethyleneimine (Man-PEI). The optimum N/P ratio for Man-PEI-ASO was determined to be 8 based on loading efficiency, particle size, zeta potential, cellular uptake and cytotoxicity assay. pH stability of ASO in Man-PEI-ASO and its protection from DNase I was confirmed. After in vitro treatment of macrophages with Man-PEI-ASO, SOCS3 was downregulated, SOCS1 upregulated, and SOCS1/SOCS3 ratio increased. Also, expressions of macrophage markers of M2 (IL-10, Arg1, CD206) increased and those of M1 (IL-1β, NOS2, CD68) decreased, and secretion of pro-inflammatory cytokines (TNF-α and IL-1β) decreased while that of anti-inflammatory cytokine IL-4 increased. All suggested a polarization into M2 phenotype. Finally, the Man-PEI-ASO was loaded in hydrogel and applied to a diabetic wound model in mice. It improved the healing to the level observed in non-diabetic wounds. We show that using antisense sequences against SOC3 mRNA, macrophage polarization could be directed into the M2 phenotype and healing of diabetic wound could be highly improved.
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Affiliation(s)
- Moein Amoupour
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Peiman Brouki Milan
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmood Barati
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ahmad Hivechi
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany; Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Motahareh Rajabi Fomeshi
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Omid Kiani Ghalesardi
- Department of Hematology and Blood Banking, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Davoud Ahmadvand
- Department of Molecular Imaging, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Ali Samadikuchaksaraei
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Fani N, Moradi M, Zavari R, Parvizpour F, Soltani A, Arabpour Z, Jafarian A. Current Advances in Wound Healing and Regenerative Medicine. Curr Stem Cell Res Ther 2024; 19:277-291. [PMID: 36856176 DOI: 10.2174/1574888x18666230301140659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 03/02/2023]
Abstract
Treating chronic wounds is a common and costly challenge worldwide. More advanced treatments are needed to improve wound healing and prevent severe complications such as infection and amputation. Like other medical fields, there have been advances in new technologies promoting wound healing potential. Regenerative medicine as a new method has aroused hope in treating chronic wounds. The technology improving wound healing includes using customizable matrices based on synthetic and natural polymers, different types of autologous and allogeneic cells at different differentiation phases, small molecules, peptides, and proteins as a growth factor, RNA interference, and gene therapy. In the last decade, various types of wound dressings have been designed. Emerging dressings include a variety of interactive/ bioactive dressings and tissue-engineering skin options. However, there is still no suitable and effective dressing to treat all chronic wounds. This article reviews different wounds and common treatments, advanced technologies and wound dressings, the advanced wound care market, and some interactive/bioactive wound dressings in the market.
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Affiliation(s)
- Nesa Fani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maryam Moradi
- MD-MPH Iran University of Medical Sciences, Tehran, Iran
| | - Roxana Zavari
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
| | - Farzad Parvizpour
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
- Department of Molecular Medicine, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Adele Soltani
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
- CinnaGen Research and Production Co., Alborz, Iran
| | - Zohreh Arabpour
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
| | - Arefeh Jafarian
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
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Legrand JMD, Martino MM. Growth Factor and Cytokine Delivery Systems for Wound Healing. Cold Spring Harb Perspect Biol 2022; 14:a041234. [PMID: 35667794 PMCID: PMC9341469 DOI: 10.1101/cshperspect.a041234] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Skin wound healing is a highly coordinated process involving multiple tissue-resident and recruited cell types. Cells within the wound microenvironment respond to key secreted factors such as pro-proliferative growth factors and immunomodulatory cytokines to repair the skin and promptly restore its essential barrier role. Therefore, recombinant growth factors and cytokines are promising therapeutics for skin wounds, in particular for large acute wounds such as burns, or wounds associated with underlying pathologies such as nonhealing chronic and diabetic wounds. However, translation of growth factors and cytokines into clinically effective treatments has been limited. Short half-life, poor stability, rapid diffusion, uncontrolled signaling, and systemic side effects are currently the key challenges to developing efficient growth factor- and cytokine-based therapies. To overcome these limitations, novel delivery systems have been developed to improve the regenerative potential of recombinant growth factors and cytokines. In this review, we discuss biomaterial and protein engineering strategies used to optimize the delivery of growth factor and cytokine therapeutics for skin wound treatment.
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Affiliation(s)
- Julien M D Legrand
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Mikaël M Martino
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
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Akombaetwa N, Bwanga A, Makoni PA, Witika BA. Applications of Electrospun Drug-Eluting Nanofibers in Wound Healing: Current and Future Perspectives. Polymers (Basel) 2022; 14:polym14142931. [PMID: 35890706 PMCID: PMC9324048 DOI: 10.3390/polym14142931] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/08/2022] [Accepted: 07/12/2022] [Indexed: 12/14/2022] Open
Abstract
Wounds are a consequence of disruption in the structure, integrity, or function of the skin or tissue. Once a wound is formed following mechanical or chemical damage, the process of wound healing is initiated, which involves a series of chemical signaling and cellular mechanisms that lead to regeneration and/or repair. Disruption in the healing process may result in complications; therefore, interventions to accelerate wound healing are essential. In addition to mechanical support provided by sutures and traditional wound dressings, therapeutic agents play a major role in accelerating wound healing. The medicines known to improve the rate and extent of wound healing include antibacterial, anti-inflammatory, and proliferation enhancing agents. Nonetheless, the development of these agents into eluting nanofibers presents the possibility of fabricating wound dressings and sutures that provide mechanical support with the added advantage of local delivery of therapeutic agents to the site of injury. Herein, the process of wound healing, complications of wound healing, and current practices in wound healing acceleration are highlighted. Furthermore, the potential role of drug-eluting nanofibers in wound management is discussed, and lastly, the economic implications of wounds as well as future perspectives in applying fiber electrospinning in the design of wound dressings and sutures are considered and reported.
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Affiliation(s)
- Nakamwi Akombaetwa
- Department of Pharmacy, Livingstone Central Hospital, P.O. Box 60091, Livingstone 10101, Zambia;
| | - Alick Bwanga
- Department of Surgery, University Teaching Adult Hospital, Private Bag RW 1 X Ridgeway, Lusaka 10101, Zambia;
| | - Pedzisai Anotida Makoni
- Division of Pharmacology, Faculty of Pharmacy, Rhodes University, Makhanda 6140, South Africa
- Correspondence: (P.A.M.); (B.A.W.)
| | - Bwalya A. Witika
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0208, South Africa
- Correspondence: (P.A.M.); (B.A.W.)
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Amjadian S, Moradi S, Mohammadi P. The emerging therapeutic targets for scar management: genetic and epigenetic landscapes. Skin Pharmacol Physiol 2022; 35:247-265. [PMID: 35696989 PMCID: PMC9533440 DOI: 10.1159/000524990] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 04/22/2022] [Indexed: 11/28/2022]
Abstract
Background Wound healing is a complex process including hemostasis, inflammation, proliferation, and remodeling during which an orchestrated array of biological and molecular events occurs to promote skin regeneration. Abnormalities in each step of the wound healing process lead to reparative rather than regenerative responses, thereby driving the formation of cutaneous scar. Patients suffering from scars represent serious health problems such as contractures, functional and esthetic concerns as well as painful, thick, and itchy complications, which generally decrease the quality of life and impose high medical costs. Therefore, therapies reducing cutaneous scarring are necessary to improve patients' rehabilitation. Summary Current approaches to remove scars, including surgical and nonsurgical methods, are not efficient enough, which is in principle due to our limited knowledge about underlying mechanisms of pathological as well as the physiological wound healing process. Thus, therapeutic interventions focused on basic science including genetic and epigenetic knowledge are recently taken into consideration as promising approaches for scar management since they have the potential to provide targeted therapies and improve the conventional treatments as well as present opportunities for combination therapy. In this review, we highlight the recent advances in skin regenerative medicine through genetic and epigenetic approaches to achieve novel insights for the development of safe, efficient, and reproducible therapies and discuss promising approaches for scar management. Key Message Genetic and epigenetic regulatory switches are promising targets for scar management, provided the associated challenges are to be addressed.
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Affiliation(s)
- Sara Amjadian
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Sharif Moradi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Parvaneh Mohammadi
- Experimental Medicine and Therapy Research, University of Regensburg, Regensburg, Germany
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- *Parvaneh Mohammadi,
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Dubey SK, Parab S, Alexander A, Agrawal M, Achalla VPK, Pal UN, Pandey MM, Kesharwani P. Cold atmospheric plasma therapy in wound healing. Process Biochem 2022. [DOI: 10.1016/j.procbio.2021.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Alan S, Şalva E, Karakoyun B, Çakalağaoğlu F, Özbaş S, Akbuğa J. Investigation of therapeutic effects in the wound healing of chitosan/pGM-CSF complexes. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e19668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Tortajada L, Felip C, Vicent MJ. Polymer-based Non-viral Vectors for Gene Therapy in the Skin. Polym Chem 2022. [DOI: 10.1039/d1py01485d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gene therapy has emerged as a versatile technique with the potential to treat a range of human diseases; however, examples of the topical application of gene therapy as a treatment...
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Otsuka T, Kan HM, Laurencin CT. Regenerative Engineering Approaches to Scar-Free Skin Regeneration. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2021. [DOI: 10.1007/s40883-021-00229-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Rinoldi C, Zargarian SS, Nakielski P, Li X, Liguori A, Petronella F, Presutti D, Wang Q, Costantini M, De Sio L, Gualandi C, Ding B, Pierini F. Nanotechnology-Assisted RNA Delivery: From Nucleic Acid Therapeutics to COVID-19 Vaccines. SMALL METHODS 2021; 5:e2100402. [PMID: 34514087 PMCID: PMC8420172 DOI: 10.1002/smtd.202100402] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/04/2021] [Indexed: 05/07/2023]
Abstract
In recent years, the main quest of science has been the pioneering of the groundbreaking biomedical strategies needed for achieving a personalized medicine. Ribonucleic acids (RNAs) are outstanding bioactive macromolecules identified as pivotal actors in regulating a wide range of biochemical pathways. The ability to intimately control the cell fate and tissue activities makes RNA-based drugs the most fascinating family of bioactive agents. However, achieving a widespread application of RNA therapeutics in humans is still a challenging feat, due to both the instability of naked RNA and the presence of biological barriers aimed at hindering the entrance of RNA into cells. Recently, material scientists' enormous efforts have led to the development of various classes of nanostructured carriers customized to overcome these limitations. This work systematically reviews the current advances in developing the next generation of drugs based on nanotechnology-assisted RNA delivery. The features of the most used RNA molecules are presented, together with the development strategies and properties of nanostructured vehicles. Also provided is an in-depth overview of various therapeutic applications of the presented systems, including coronavirus disease vaccines and the newest trends in the field. Lastly, emerging challenges and future perspectives for nanotechnology-mediated RNA therapies are discussed.
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Affiliation(s)
- Chiara Rinoldi
- Department of Biosystems and Soft MatterInstitute of Fundamental Technological ResearchPolish Academy of Sciencesul. Pawińskiego 5BWarsaw02‐106Poland
| | - Seyed Shahrooz Zargarian
- Department of Biosystems and Soft MatterInstitute of Fundamental Technological ResearchPolish Academy of Sciencesul. Pawińskiego 5BWarsaw02‐106Poland
| | - Pawel Nakielski
- Department of Biosystems and Soft MatterInstitute of Fundamental Technological ResearchPolish Academy of Sciencesul. Pawińskiego 5BWarsaw02‐106Poland
| | - Xiaoran Li
- Innovation Center for Textile Science and TechnologyDonghua UniversityWest Yan'an Road 1882Shanghai200051China
| | - Anna Liguori
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of BolognaUniversity of BolognaVia Selmi 2Bologna40126Italy
| | - Francesca Petronella
- Institute of Crystallography CNR‐ICNational Research Council of ItalyVia Salaria Km 29.300Monterotondo – Rome00015Italy
| | - Dario Presutti
- Institute of Physical ChemistryPolish Academy of Sciencesul. M. Kasprzaka 44/52Warsaw01‐224Poland
| | - Qiusheng Wang
- Innovation Center for Textile Science and TechnologyDonghua UniversityWest Yan'an Road 1882Shanghai200051China
| | - Marco Costantini
- Institute of Physical ChemistryPolish Academy of Sciencesul. M. Kasprzaka 44/52Warsaw01‐224Poland
| | - Luciano De Sio
- Department of Medico‐Surgical Sciences and BiotechnologiesResearch Center for BiophotonicsSapienza University of RomeCorso della Repubblica 79Latina04100Italy
- CNR‐Lab. LicrylInstitute NANOTECArcavacata di Rende87036Italy
| | - Chiara Gualandi
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of BolognaUniversity of BolognaVia Selmi 2Bologna40126Italy
- Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials TechnologyCIRI‐MAMUniversity of BolognaViale Risorgimento 2Bologna40136Italy
| | - Bin Ding
- Innovation Center for Textile Science and TechnologyDonghua UniversityWest Yan'an Road 1882Shanghai200051China
| | - Filippo Pierini
- Department of Biosystems and Soft MatterInstitute of Fundamental Technological ResearchPolish Academy of Sciencesul. Pawińskiego 5BWarsaw02‐106Poland
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Mechanism of bone marrow mesenchymal stem cells secreting miR-26a exosomes affecting high glucose-induced skin fibroblasts function by regulating TLR4/NF-κB signaling. Inflamm Res 2021; 70:811-821. [PMID: 34185112 DOI: 10.1007/s00011-021-01478-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/06/2021] [Accepted: 06/10/2021] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate the molecular mechanism of human bone marrow mesenchymal stem cells (hMSCs) secreting miR-26a exosomes on the function of skin fibroblasts. METHODS Exosomes from hMSCs were extracted and identified by transmission electron microscopy, particle size was analyzed and protein markers were detected. Then, the exosomes were co-cultured with human skin fibroblasts (BJ). CCK-8, Annexin V/P and Transwell assays were used to detect the proliferation, apoptosis, and migration of BJ cells. In addition, the expressions of miR-26a, related proteins, and related inflammatory factors were detected by qRT-PCR, western blotting, and ELISA. RESULTS Compared with the high glucose group, the proliferation rate, migration rate, and the expression of α-SMA, bcl-2, TLR4, NF-κB, TNF-α, IL-6, IL- and IL-1 were significantly decreased in the high glucose + MSC-Exo-miR-26a mimics group, while the apoptosis rate and the expression of miR-26a, cleaved-caspase 3, cleaved-caspase 9 and Bax were significantly increased. The results of the high glucose + MSC-Exo-miR-26a inhibitor group were the opposite. CONCLUSION These results suggest that hMSCs cells secreting miR-26a exosomes inhibited the proliferation, migration, and transdifferentiation of high glucose-induced BJ cells, and promoted cell apoptosis, which may be related to the TLR4/NF-κB signaling pathway.
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Schlottmann F, Bucan V, Vogt PM, Krezdorn N. A Short History of Skin Grafting in Burns: From the Gold Standard of Autologous Skin Grafting to the Possibilities of Allogeneic Skin Grafting with Immunomodulatory Approaches. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:225. [PMID: 33801228 PMCID: PMC7998351 DOI: 10.3390/medicina57030225] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/05/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022]
Abstract
Due to groundbreaking and pioneering developments in the last century, significant improvements in the care of burn patients have been achieved. In addition to the still valid therapeutic standard of autologous split-thickness skin grafting, various commercially available skin substitutes are currently available. Significant progress in the field of tissue engineering has led to the development of promising therapeutic approaches. However, scientific advances in the field of allografting and transplant immunology are of great importance. The achievement of various milestones over the past decades has provided thought-provoking impulses in the field of skin allotransplantation. Thus, biologically viable skin allotransplantation is still not a part of the clinical routine. The purpose of this article is to review the achievements in burn surgery with regards to skin allotransplantation in recent years.
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Affiliation(s)
- Frederik Schlottmann
- Department of Plastic, Aesthetic, Hand- and Reconstructive Surgery, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (V.B.); (P.M.V.); (N.K.)
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Reksodiputro MH, Hutauruk SM, Widodo DW, Fardizza F, Mutia D. Platelet-Rich Fibrin Enhances Surgical Wound Healing in Total Laryngectomy. Facial Plast Surg 2021; 37:325-332. [PMID: 33445196 DOI: 10.1055/s-0040-1717083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Autologous growth factor (AGF) is a cytokine that has gained medical research interest because it helps improve and accelerate the wound healing process. Platelet-rich fibrin (PRF) is the latest generation of platelet concentrate that can be obtained through a simple procedure known as AGF referencing. One of the most common complications of total laryngectomy (TL) is pharyngocutaneous fistula. To prevent this complication, health care providers must closely monitor the postoperative wound healing process.This study aimed to investigate the effectiveness of PRF application in enhancing wound healing after TL. A randomized controlled trial was conducted in the Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital Universitas Indonesia, Jakarta, Indonesia, from June 2019 to December 2019. We included 20 patients who underwent TL for laryngeal squamous cell carcinoma. They were divided into two groups (10 patients who received applied autologous PRF around the esophageal stoma during TL and another 10 patients as the control). These patients were observed for 2 weeks postoperatively. In the bivariate analysis performed using the chi-square test, the pain threshold and edema of postoperative wounds in the PRF-treated group demonstrated significant differences compared with those in the control group. PRF application in TL enhanced the postoperative wound healing process, especially with regard to edema and pain.
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Affiliation(s)
- Mirta H Reksodiputro
- Division of Facial Plastic Reconstructive, Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Syahrial M Hutauruk
- Division of Larynx Pharynx, Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Dini W Widodo
- Division of Facial Plastic Reconstructive, Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Fauziah Fardizza
- Division of Larynx Pharynx, Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Dita Mutia
- Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
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Sun H, Pulakat L, Anderson DW. Challenges and New Therapeutic Approaches in the Management of Chronic Wounds. Curr Drug Targets 2020; 21:1264-1275. [PMID: 32576127 DOI: 10.2174/1389450121666200623131200] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 05/10/2020] [Accepted: 05/20/2020] [Indexed: 02/07/2023]
Abstract
Chronic non-healing wounds are estimated to cost the US healthcare $28-$31 billion per year. Diabetic ulcers, arterial and venous ulcers, and pressure ulcers are some of the most common types of chronic wounds. The burden of chronic wounds continues to rise due to the current epidemic of obesity and diabetes and the increase in elderly adults in the population who are more vulnerable to chronic wounds than younger individuals. This patient population is also highly vulnerable to debilitating infections caused by opportunistic and multi-drug resistant pathogens. Reduced microcirculation, decreased availability of cytokines and growth factors that promote wound closure and healing, and infections by multi-drug resistant and biofilm forming microbes are some of the critical factors that contribute to the development of chronic non-healing wounds. This review discusses novel approaches to understand chronic wound pathology and methods to improve chronic wound care, particularly when chronic wounds are infected by multi-drug resistant, biofilm forming microbes.
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Affiliation(s)
- Hongmin Sun
- Division of Cardiovascular Medicine, Department of Medicine, University of Missouri, Columbia, Missouri 65212, United States
| | - Lakshmi Pulakat
- Division of Cardiovascular Medicine, Department of Medicine, University of Missouri, Columbia, Missouri 65212, United States
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Souza MR, Ibelli AMG, Savoldi IR, Cantão ME, Peixoto JDO, Mores MAZ, Lopes JS, Coutinho LL, Ledur MC. Transcriptome analysis identifies genes involved with the development of umbilical hernias in pigs. PLoS One 2020; 15:e0232542. [PMID: 32379844 PMCID: PMC7205231 DOI: 10.1371/journal.pone.0232542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 04/16/2020] [Indexed: 02/06/2023] Open
Abstract
Umbilical hernia (UH) is one of the most frequent defects affecting pig production, however, it also affects humans and other mammals. UH is characterized as an abnormal protrusion of the abdominal contents to the umbilical region, causing pain, discomfort and reduced performance in pigs. Some genomic regions associated to UH have already been identified, however, no study involving RNA sequencing was performed when umbilical tissue is considered. Therefore, here, we have sequenced the umbilical ring transcriptome of five normal and five UH-affected pigs to uncover genes and pathways involved with UH development. A total of 13,216 transcripts were expressed in the umbilical ring tissue. From those, 230 genes were differentially expressed (DE) between normal and UH-affected pigs (FDR <0.05), being 145 downregulated and 85 upregulated in the affected compared to the normal pigs. A total of 68 significant biological processes were identified and the most relevant were extracellular matrix, immune system, anatomical development, cell adhesion, membrane components, receptor activation, calcium binding and immune synapse. The results pointed out ACAN, MMPs, COLs, EPYC, VIT, CCBE1 and LGALS3 as strong candidates to trigger umbilical hernias in pigs since they act in the extracellular matrix remodeling and in the production, integrity and resistance of the collagen. We have generated the first transcriptome of the pig umbilical ring tissue, which allowed the identification of genes that had not yet been related to umbilical hernias in pigs. Nevertheless, further studies are needed to identify the causal mutations, SNPs and CNVs in these genes to improve our understanding of the mechanisms of gene regulation.
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Affiliation(s)
- Mayla Regina Souza
- Programa de Pós-graduação em Zootecnia, Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, UDESC, Chapecó, Santa Catarina, Brazil
| | | | - Igor Ricardo Savoldi
- Programa de Pós-graduação em Zootecnia, Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, UDESC, Chapecó, Santa Catarina, Brazil
| | | | | | | | | | - Luiz Lehmann Coutinho
- Laboratório de Biotecnologia Animal, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, São Paulo, Brazil
| | - Mônica Corrêa Ledur
- Programa de Pós-graduação em Zootecnia, Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, UDESC, Chapecó, Santa Catarina, Brazil
- Embrapa Suínos e Aves, Concórdia, Santa Catarina, Brazil
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17
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Xu H, Fan GK. The Role of Cytokines in Modulating Vocal Fold Fibrosis: A Contemporary Review. Laryngoscope 2020; 131:139-145. [PMID: 32293731 DOI: 10.1002/lary.28507] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/11/2019] [Accepted: 12/29/2019] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Vocal fold (VF) scarring and laryngeal stenosis are a significant clinical challenge. Excessive scar formation causes low voice quality or even life-threatening obstructions. Cytokines are thought to modulate multiple steps of the establishment of VF fibrosis, but there is no systematic report regarding their role in modulating VF fibrosis. This review aims to investigate the role of cytokines in modulating vocal fold fibrosis. STUDY DESIGN Literature review. METHODS This review searched for all relevant peer publications in English for the period 2009 to 2019 in the PubMed database using search terms: "laryngeal stenosis," "vocal fold scarring," and "cytokines." A thorough investigation of the methods and results of the reviewed studies was performed. RESULTS Comprehensive research in various studies, including analyses of prostaglandin E2 (PGE2), granulocyte-macrophage colony-stimulating factor (GM-CSF), hepatocyte growth factor (HGF), basic fibroblast growth factor (bFGF), transforming growth factor-β3 (TGF-β3), and interleukin-10 (IL-10), supports cytokine therapy for VF scarring and laryngeal stenosis to some extent. A few clinical studies on this topic support the conclusion that HGF and bFGF can be selected as effective drugs, and no serious side effects were found. CONCLUSIONS This review describes the potential of cytokines for modulating the process of VF fibrogenesis, although cytokines are still an unproven treatment method. As no ideal drugs exist, cytokines may be considered the candidate treatment for preventing VF fibrogenesis. Laryngoscope, 131:139-145, 2021.
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Affiliation(s)
- Haoyuan Xu
- Department of Otolaryngology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Guo-Kang Fan
- Department of Otolaryngology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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18
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Irving S. Managing chronic, nonhealing wounds stalled in the inflammatory phase: a case series using a novel matrix therapy, CACIPLIQ20. Br J Community Nurs 2019; 24:S33-S37. [PMID: 31479338 DOI: 10.12968/bjcn.2019.24.sup9.s33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
One of the biggest challenges faced by healthcare providers is the treatment of chronic, non-healing wounds. This paper reports for the first time in the UK the results of five case studies in which a novel regenerating matrix-based therapy, CACIPLIQ20, was used. CACIPLIQ20 is a heparan sulphate mimetic designed to replace the destroyed heparan sulphate in the extracellular matrix of wound cells. All five patients in this case series had chronic, non-healing ulcers that had not improved with conventional care. Treatment included two applications of CACIPLIQ20 per week, for a maximum of 12 weeks. Three of the five wounds healed completely, and the remaining two showed significant improvements in size and quality. The treatment was well tolerated by the patients and also led to a significant reduction in pain. Moreover, CACIPLIQ20 treatment was found to be highly cost-effective when compared to conventional care, with the potential to save healthcare systems significant resources. Further studies are needed to build a strong evidence base on the use of this product, but these preliminary findings are certainly promising.
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Affiliation(s)
- Sally Irving
- Tissue Viability Service Manager at Somerset Partnership NHS Trust, at the time of the study now, Independent Tissue Viability Nurse Consultant at Specialist Wound Care (Boocare Ltd)
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19
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Arriagada F, Nonell S, Morales J. Silica-based nanosystems for therapeutic applications in the skin. Nanomedicine (Lond) 2019; 14:2243-2267. [PMID: 31411537 DOI: 10.2217/nnm-2019-0052] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aging, exposure to oxidants, infectious pathogens, inflammogens, ultraviolet radiation and other environmental and genetic factors can result in the development of various skin disorders. Despite immense progress being made in dermatological treatments, many skin-associated problems still remain difficult to treat and various therapies have limitations. Progress in silica-based nanomaterials research provides an opportunity to overcome these drawbacks and improve therapies and is a promising tool for inclusion in clinical practice to treat skin diseases. This review focuses on the use of various types of silica nanoparticles with therapeutic applications in various skin disorders. These nanosystems improve treatment efficacy by maintaining or enhancing the effect of several drugs and are useful tools for nanomedicine, pharmaceutical sciences and future clinical applications.
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Affiliation(s)
- Francisco Arriagada
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile
| | - Santi Nonell
- Institut Químic de Sarrià (IQS), University Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - Javier Morales
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile
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20
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Raghuram A, Singh A, Chang DK, Nunez M, Reece EM, Schultz BE. The Evolving Landscape of Gene Therapy in Plastic Surgery. Semin Plast Surg 2019; 33:167-172. [PMID: 31384232 DOI: 10.1055/s-0039-1693131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
With the rapid rise of personalized genomic sequencing and clustered regularly interspaced short palindromic repeat (CRISPR) technology, previous gaps in gene therapy are beginning to be bridged, paving the way for increasing clinical applicability. This article aims to provide an overview of the fundamentals of gene therapy and discuss future potential interventions relevant to plastic surgeons. These interventions include enhancing tissue regeneration and healing, as well as modifying disease processes in congenital anomalies. Though clinical applications are still on the horizon, a deeper understanding of these new advances will help plastic surgeons understand the current landscape of gene therapy and stay abreast of future opportunities.
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Affiliation(s)
| | - Aspinder Singh
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
| | - Daniel K Chang
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
| | - Mervin Nunez
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
| | - Edward M Reece
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
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21
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Oryan A, Alemzadeh E, Zarei M. Basic concepts, current evidence, and future potential for gene therapy in managing cutaneous wounds. Biotechnol Lett 2019; 41:889-898. [PMID: 31256273 DOI: 10.1007/s10529-019-02701-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/19/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Several studies have investigated the role of gene therapy in the healing process. The aim of this review is to explain the gene delivery systems in wound area. RESULTS Ninety-two studies were included and comprehensively overviewed. We described the importance of viral vectors such as adenoviruses, adeno-associated viruses, and retroviruses, and conventional non-viral vectors such as naked DNA injections, liposomes, gene gun, electroporation, and nanoparticles in achieving high-level expression of genes. Application of viral transfection, liposomal vectors, and electroporation were the main gene delivery systems. Genes encoding for growth factors or cytokines have been shown to result in a better wound closure in comparison to application of the synthetic growth factors. In addition, a combination of stem cell and gene therapy has been found an effective approach in regeneration of cutaneous wounds. CONCLUSIONS This article gives an overview of the methods and investigations applied on gene therapy in wound healing. However, clinical investigations need to be undertaken to gain a better understanding of gene delivery technologies and their roles in stimulating wound repair.
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Affiliation(s)
- Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Esmat Alemzadeh
- Department of Medical Biotechnology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Zarei
- Department of Agricultural Biotechnology, Faculty of Engineering and Technology, Imam Khomeini International University, Qazvin, Iran
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22
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Singh P, Vijayan R, Singh E, Mosahebi A. Genetic Editing in Plastic Surgery. Aesthet Surg J 2019; 39:NP225-NP226. [PMID: 31095308 DOI: 10.1093/asj/sjz064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Prateush Singh
- Royal London Hospital, Department of Plastic Surgery, Hampstead, London, UK
| | - Roshan Vijayan
- Department of Plastic Surgery, Royal Free Hospital, Hampstead, London, UK
| | - Esha Singh
- Department of Plastic Surgery, Royal Free Hospital, Hampstead, London, UK
| | - Afshin Mosahebi
- Department of Plastic Surgery, Royal Free Hospital, Hampstead, London, UK
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23
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Lipid gene nanocarriers for the treatment of skin diseases: Current state-of-the-art. Eur J Pharm Biopharm 2019; 137:95-111. [DOI: 10.1016/j.ejpb.2019.02.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/21/2019] [Accepted: 02/15/2019] [Indexed: 12/19/2022]
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24
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25
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Singh RD, Hillestad ML, Livia C, Li M, Alekseev AE, Witt TA, Stalboerger PG, Yamada S, Terzic A, Behfar A. M 3RNA Drives Targeted Gene Delivery in Acute Myocardial Infarction. Tissue Eng Part A 2018; 25:145-158. [PMID: 30047313 DOI: 10.1089/ten.tea.2017.0445] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IMPACT STATEMENT The M3RNA (microencapsulated modified messenger RNA) platform is an approach to deliver messenger RNA (mRNA) in vivo, achieving a nonintegrating and viral-free approach to gene therapy. This technology was, in this study, tested for its utility in the myocardium, providing a unique avenue for targeted gene delivery into the freshly infarcted myocardial tissue. This study provides the evidentiary basis for the use of M3RNA in the heart through depiction of its performance in cultured cells, healthy rodent myocardium, and acutely injured porcine hearts. By testing the technology in large animal models of infarction, compatibility of M3RNA with current coronary intervention procedures was verified.
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Affiliation(s)
- Raman Deep Singh
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Matthew L Hillestad
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Christopher Livia
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota.,3 Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Mark Li
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota.,3 Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Alexey E Alekseev
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota.,4 Institute of Theoretical and Experimental Biophysics, Russian Academy of Science, Moscow, Russia
| | - Tyra A Witt
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Paul G Stalboerger
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Satsuki Yamada
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Andre Terzic
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota.,3 Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Atta Behfar
- 1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.,2 VanCleve Cardiac Regenerative Medicine Program, Center for Regenerative Medicine, Mayo Clinic, Rochester, Minnesota.,3 Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
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26
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Le TMD, Duong HTT, Thambi T, Giang Phan V, Jeong JH, Lee DS. Bioinspired pH- and Temperature-Responsive Injectable Adhesive Hydrogels with Polyplexes Promotes Skin Wound Healing. Biomacromolecules 2018; 19:3536-3548. [DOI: 10.1021/acs.biomac.8b00819] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Thai Minh Duy Le
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Huu Thuy Trang Duong
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Thavasyappan Thambi
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - V.H. Giang Phan
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 70000, Vietnam
| | - Ji Hoon Jeong
- School of Pharmacy, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Doo Sung Lee
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 440-746, Republic of Korea
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27
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Dixit S, Baganizi DR, Sahu R, Dosunmu E, Chaudhari A, Vig K, Pillai SR, Singh SR, Dennis VA. Immunological challenges associated with artificial skin grafts: available solutions and stem cells in future design of synthetic skin. J Biol Eng 2017; 11:49. [PMID: 29255480 PMCID: PMC5729423 DOI: 10.1186/s13036-017-0089-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 11/17/2017] [Indexed: 12/29/2022] Open
Abstract
The repair or replacement of damaged skins is still an important, challenging public health problem. Immune acceptance and long-term survival of skin grafts represent the major problem to overcome in grafting given that in most situations autografts cannot be used. The emergence of artificial skin substitutes provides alternative treatment with the capacity to reduce the dependency on the increasing demand of cadaver skin grafts. Over the years, considerable research efforts have focused on strategies for skin repair or permanent skin graft transplantations. Available skin substitutes include pre- or post-transplantation treatments of donor cells, stem cell-based therapies, and skin equivalents composed of bio-engineered acellular or cellular skin substitutes. However, skin substitutes are still prone to immunological rejection, and as such, there is currently no skin substitute available to overcome this phenomenon. This review focuses on the mechanisms of skin rejection and tolerance induction and outlines in detail current available strategies and alternatives that may allow achieving full-thickness skin replacement and repair.
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Affiliation(s)
- Saurabh Dixit
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA.,Immunity, Inflammation, and Disease Laboratory, NIH/NIEHS, Durham, 27709 NC USA
| | - Dieudonné R Baganizi
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
| | - Rajnish Sahu
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
| | - Ejowke Dosunmu
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
| | - Atul Chaudhari
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
| | - Komal Vig
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
| | - Shreekumar R Pillai
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
| | - Shree R Singh
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
| | - Vida A Dennis
- Center for Nanobiotechnology Research and Department of Biological Sciences, Alabama State University, 1627 Harris Way, Montgomery, AL 36104 USA
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28
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Venault A, Huang YC, Lo JW, Chou CJ, Chinnathambi A, Higuchi A, Chen WS, Chen WY, Chang Y. Tunable PEGylation of branch-type PEI/DNA polyplexes with a compromise of low cytotoxicity and high transgene expression: in vitro and in vivo gene delivery. J Mater Chem B 2017; 5:4732-4744. [PMID: 32264316 DOI: 10.1039/c7tb01046j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Although PEGylated polyplexes for gene delivery are widespread, there is a need for an in-depth investigation of the role of the PEGylation degree on the delivery efficiency of the systems. For this, a low-toxicity series of polymers for gene delivery were designed via Michael addition of poly(ethylene glycol)methyl ether methacrylate (PEGMA) onto branched polyethylenimine PEI. The goal was to finely tune the PEGylation degree in order to determine the system offering the best compromise between low cytotoxicity and high transfection efficiency under both in vitro and in vivo conditions. From dynamic light scattering tests, zeta potential measurements and gel retardation assay, it was found that nanoparticle assembly of PEI-g-PEGMA and DNA exhibited stable complex formation when the PEGylation degree was below 2.9%. In addition, complexes formed from polymers with a PEGylation degree of at least 1.67% (from PEI-g-PEGMA-6 to PEI-g-PEGMA-18) all showed very low hemolysis activity. Transfection efficiencies of the prepared complexes were determined using the pEGFP-C3 vector and β-galactosidase. Complexes made of PEI-g-PEGMA-6 and PEI-g-PEGMA-10 at a polymer nitrogen/DNA phosphorus weight ratio (Wn/Wp) of 5 led to the best transfection efficiencies. Moreover, PEGylation ensured low cytotoxicity of the complexes in particular at high Wn/Wp ratios. In vivo tests in a mouse model confirmed the in vitro results obtained for PEI-g-PEGMA-6-based complexes, at all Wn/Wp ratios tested, but also showed that a high PEGylation degree (5.2% for PEI-g-PEGMA-18), though inefficient in vitro could still lead to successful delivery in vivo, due to a prolonged contact time between the complex and the cells, and to the change in the biological environment. Overall, provided a fine tuning of the grafting density of PEGMA onto PEI and the polymer nitrogen/DNA phosphorus weight ratio, our results prove that PEI-g-PEGMA polymers constitute an efficient platform for successful in vitro and in vivo gene delivery, and ensure low cytotoxicity and prolonged cell viability.
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Affiliation(s)
- A Venault
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University, Jhong-Li, Taoyuan 320, Taiwan, Republic of China.
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29
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Roan JN, Cheng HN, Young CC, Lee CJ, Yeh ML, Luo CY, Tsai YS, Lam CF. Exendin-4, a glucagon-like peptide-1 analogue, accelerates diabetic wound healing. J Surg Res 2017; 208:93-103. [DOI: 10.1016/j.jss.2016.09.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 08/19/2016] [Accepted: 09/09/2016] [Indexed: 10/21/2022]
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30
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Zhang Z, Slobodianski A, Arnold A, Nehlsen J, Hopfner U, Schilling AF, Perisic T, Machens HG. High Efficiency Low Cost Fibroblast Nucleofection for GMP Compatible Cell-based Gene Therapy. Int J Med Sci 2017; 14:798-803. [PMID: 28824316 PMCID: PMC5562186 DOI: 10.7150/ijms.19241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 04/23/2017] [Indexed: 11/21/2022] Open
Abstract
Background: Dermal fibroblast is a powerful tool for the study of ex vivo DNA delivery in development of both cell therapy and tissue engineering products. Using genetic modification, fibroblasts can be diversely adapted and made suitable for clinical gene therapy. In this study, we first compared several non-viral transfection methods including nucleofection in rat and human primary dermal fibroblast. In addition, the original protocol for nucleofection of primary mammalian fibroblasts was modified in order to achieve the highest possible transfection efficiency, as determined by flow cytometry analysis of the green fluorescent protein (GFP) expression. Results: the results showed that transfection performance of Dulbecco's Modified Eagle Medium (DMEM) supplemented with 10% Fetal Calf Serum (FCS) yielded the best transfection efficiency with rat dermal fibroblasts and ITS (insulin, transferrin, and sodium selenite solution) was comparable to the standard nucleofection solution for human dermal fibroblasts. Conclusion: Our results suggest a promising application of the modified nucleofection method for GMP compatible therapeutic translational medical research.
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Affiliation(s)
- Ziyang Zhang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department for Plastic Surgery and Hand Surgery; Klinikum rechts der Isar; Technical University Munich, Munich, Germany.,Department of Plastic Surgery and Hand Surgery, University of Lübeck, Lübeck, Germany
| | - Alex Slobodianski
- Department for Plastic Surgery and Hand Surgery; Klinikum rechts der Isar; Technical University Munich, Munich, Germany.,Technical University Munich, Faculty of Medicine, TUM Cells Interdisciplinary Center for Cellular Therapies, Munich, Germany.,Department of Plastic Surgery and Hand Surgery, University of Lübeck, Lübeck, Germany
| | - Astrid Arnold
- Department of Plastic Surgery and Hand Surgery, University of Lübeck, Lübeck, Germany
| | - Jessica Nehlsen
- Department of Plastic Surgery and Hand Surgery, University of Lübeck, Lübeck, Germany
| | - Ursula Hopfner
- Department for Plastic Surgery and Hand Surgery; Klinikum rechts der Isar; Technical University Munich, Munich, Germany
| | - Arndt F Schilling
- Department for Plastic Surgery and Hand Surgery; Klinikum rechts der Isar; Technical University Munich, Munich, Germany.,Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie, Universitätsmedizin Göttingen, Göttingen, Germany
| | - Tatjana Perisic
- Department for Plastic Surgery and Hand Surgery; Klinikum rechts der Isar; Technical University Munich, Munich, Germany
| | - Hans-Günther Machens
- Department for Plastic Surgery and Hand Surgery; Klinikum rechts der Isar; Technical University Munich, Munich, Germany
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31
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E2F1 Hinders Skin Wound Healing by Repressing Vascular Endothelial Growth Factor (VEGF) Expression, Neovascularization, and Macrophage Recruitment. PLoS One 2016; 11:e0160411. [PMID: 27490344 PMCID: PMC4973919 DOI: 10.1371/journal.pone.0160411] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 07/19/2016] [Indexed: 12/21/2022] Open
Abstract
Background Refractory surface of wound and dermal chronic ulcer are largely attributed to poor neovascularization. We have previously shown that E2F1 suppresses VEGF expression in the ischemic heart, and that genetic deletion of E2F1 leads to better cardiac recovery. However, whether E2F1 has a role in dermal wound healing is currently not known. Methods and Results Skin wounds were surgically induced in E2F1-null (E2F1–/–) mice and WT littermates. E2F1–/– displayed an accelerated wound healing including wound closure, dermal thickening and collagen deposition, which was associated with an increased endothelial cell proliferation and greater vessel density in the border zone of the wound. Furthermore, more macrophages were recruited to the skin lesions and the level of VEGF expression was markedly higher in E2F1–/– than in WT mice. Conclusions E2F1 hinders skin wound healing by suppressing VEGF expression, neovascularization, and macrophage recruitment. Strategies that target E2F1 may enhance wound healing.
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Kalashnikova I, Das S, Seal S. Nanomaterials for wound healing: scope and advancement. Nanomedicine (Lond) 2015; 10:2593-612. [PMID: 26295361 DOI: 10.2217/nnm.15.82] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Innovative methods for treating impaired and hard-to-heal wounds are needed. Novel strategies are needed for faster healing by reducing infection, moisturizing the wound, stimulating the healing mechanisms, speeding up the wound closure and reducing scar formation. In the past few years, nanotechnology has been constantly revolutionizing the treatment and management of wound care, by offering novel solutions which include but are not limited to: state-of-the-art materials, so called 'smart' biomaterials and theranostic nanoparticles. Nanotechnology-based therapy has recently announced itself as a possible next-generation therapy that is able to advance wound healing to cure chronic wounds. In this communication, the recent progress in advanced therapy for cutaneous wound healing during last 5 years using a nanotechnology-based approach is summarized.
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Affiliation(s)
- Irina Kalashnikova
- Nanoscience Technology Center, Advanced Materials Processing & Analysis Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA
| | - Soumen Das
- Nanoscience Technology Center, Advanced Materials Processing & Analysis Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA
| | - Sudipta Seal
- Nanoscience Technology Center, Advanced Materials Processing & Analysis Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.,Materials Science & Engineering, College of Medicine, University of Central Florida, Orlando, FL 32816, USA
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Sarkar K, Banerjee SL, Kundu PP, Madras G, Chatterjee K. Biofunctionalized surface-modified silver nanoparticles for gene delivery. J Mater Chem B 2015; 3:5266-5276. [PMID: 32262602 DOI: 10.1039/c5tb00614g] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver nanoparticles (AgNPs) find use in different biomedical applications including wound healing and cancer. We propose that the efficacy of the nanoparticles can be further augmented by using these particles for gene delivery applications. The objective of this work was to engineer biofunctionalized stable AgNPs with good DNA binding ability for efficient transfection and minimal toxicity. Herein, we report on the one-pot facile green synthesis of polyethylene glycol (PEG) stabilized chitosan-g-polyacrylamide modified AgNPs. The size of the PEG stabilized AgNPs was 38 ± 4 nm with a tighter size distribution compared to the unstabilized nanoparticles which showed bimodal distribution of particle sizes of 68 ± 5 nm and 7 ± 4 nm. To enhance the efficiency of gene transfection, the Arg-Gly-Asp-Ser (RGDS) peptide was immobilized on the silver nanoparticles. The transfection efficiency of AgNPs increased significantly after immobilization of the RGDS peptide reaching up to 42 ± 4% and 30 ± 3% in HeLa and A549 cells, respectively, and significantly higher than 34 ± 3% and 23 ± 2%, respectively, with the use of polyethyleneimine (25 kDa). These nanoparticles were found to induce minimal cellular toxicity. Differences in cellular uptake mechanisms with RGDS immobilization resulting in improved efficiency are elucidated. This study presents biofunctionalized AgNPs for potential use as efficient nonviral carriers for gene delivery with minimal cytotoxicity toward augmenting the therapeutic efficacy of AgNPs used in different biomedical products.
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Affiliation(s)
- Kishor Sarkar
- Department of Chemical Engineering, Indian Institute of Science, Bangalore-560012, India
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Wang X, Hélary C, Coradin T. Local and sustained gene delivery in silica-collagen nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2503-2511. [PMID: 25569123 DOI: 10.1021/am507389q] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Local delivery of biomolecules from hydrogels is highly challenging because of their rapid diffusion and degradation. Gene therapy represents an alternative that allows for the prolonged production of proteins by transfected cells. In this study, we have developed nanocomposites consisting of DNA-polyethylenimine-silica nanoparticle complexes coencapsulated with fibroblasts within collagen hydrogels. Through the modulation of the particle size and polyethylenimine molecular weight, it was possible to achieve "in-gel" transfection permitting the sustained production of biomolecules from hydrogels over 1 week. Alternative configurations consisting of particle addition to cellularized gels and cell culture in the presence of complex-containing hydrogels were also investigated. These studies demonstrated that particle encapsulation limits DNA and silica dissemination outside the collagen hydrogels. They also show the key role of cell proliferation within collagen hydrogels on the transfection efficiency. Such nanocomposites therefore constitute promising materials for the development of novel gene delivery systems to promote tissue repair.
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Affiliation(s)
- Xiaolin Wang
- Sorbonne Universités , UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, F-75005, Paris, France
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Fang YL, Chen XG, W T G. Gene delivery in tissue engineering and regenerative medicine. J Biomed Mater Res B Appl Biomater 2014; 103:1679-99. [PMID: 25557560 DOI: 10.1002/jbm.b.33354] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 11/07/2014] [Accepted: 11/18/2014] [Indexed: 12/13/2022]
Abstract
As a promising strategy to aid or replace tissue/organ transplantation, gene delivery has been used for regenerative medicine applications to create or restore normal function at the cell and tissue levels. Gene delivery has been successfully performed ex vivo and in vivo in these applications. Excellent proliferation capabilities and differentiation potentials render certain cells as excellent candidates for ex vivo gene delivery for regenerative medicine applications, which is why multipotent and pluripotent cells have been intensely studied in this vein. In this review, gene delivery is discussed in detail, along with its applications to tissue engineering and regenerative medicine. A definition of a stem cell is compared to a definition of a stem property, and both provide the foundation for an in-depth look at gene delivery investigations from a germ lineage angle.
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Affiliation(s)
- Y L Fang
- Department of Chemical & Biomolecular Engineering, Laboratory for Gene Therapy and Cellular Engineering, Tulane University, 300 Lindy Boggs Center, New Orleans, Louisiana, 70118
| | - X G Chen
- Department of Chemical & Biomolecular Engineering, Laboratory for Gene Therapy and Cellular Engineering, Tulane University, 300 Lindy Boggs Center, New Orleans, Louisiana, 70118
| | - Godbey W T
- Department of Chemical & Biomolecular Engineering, Laboratory for Gene Therapy and Cellular Engineering, Tulane University, 300 Lindy Boggs Center, New Orleans, Louisiana, 70118
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Functional analysis reveals angiogenic potential of human mesenchymal stem cells from Wharton’s jelly in dermal regeneration. Angiogenesis 2014; 17:851-66. [DOI: 10.1007/s10456-014-9432-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 04/04/2014] [Indexed: 02/07/2023]
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Drug Delivery to Wounds, Burns, and Diabetes-Related Ulcers. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2014. [DOI: 10.1007/978-1-4614-9434-8_26] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Balaji S, King A, Dhamija Y, Le LD, Shaaban AF, Crombleholme TM, Keswani SG. Pseudotyped adeno-associated viral vectors for gene transfer in dermal fibroblasts: implications for wound-healing applications. J Surg Res 2013; 184:691-8. [PMID: 23590866 DOI: 10.1016/j.jss.2013.03.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 03/11/2013] [Accepted: 03/14/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cell-specific gene transfer and sustained transgene expression are goals of cutaneous gene therapy. Pseudotyping strategy with adeno-associated viral (AAV) vectors has the potential to confer unique cellular tropism and transduction efficiency. We hypothesize that pseudotyped AAV vectors have differential tropism and transduction efficiency under normal and wound conditions in dermal fibroblasts. MATERIALS AND METHODS We packaged AAV2 genome with green fluorescent protein reporter in capsids of other serotypes, AAV5, AAV7, and AAV8, producing pseudotyped vectors AAV2/5, AAV2/7, and AAV2/8, respectively. Murine and human dermal fibroblasts were transduced by the different pseudotypes for 24 h at multiplicities of infection 10(2), 10(3), 10(4), and 10(5). We assessed transduction efficiency at days 3 and 7. Experiments were repeated in a simulated wound environment by adding 10 ng/mL platelet-derived growth factor-B to culture media. RESULTS Transduction efficiency of the pseudotyped AAV vectors was dose dependent. Multiplicity of infection 10(5) resulted in significantly higher gene transfer. Under normal culture conditions, the pseudotyping strategy conferred differential transduction of dermal fibroblasts, with significantly enhanced transduction of murine cells by AAV2/5 and AAV2/8 compared with AAV2/2. Adeno-associated virus 2/8 was more efficacious in transducing human cells. Under wound conditions, transduction efficiency of AAV2/2, 2/5, and 2/8 was significantly lower in murine fibroblasts. At day 3 under wound conditions, all vectors demonstrated similar transduction efficiency, but by day 7, the three pseudotyped vectors transduced significantly more murine cells compared with AAV2/2. However, in human cells, there was no significant difference in the transduction efficiency of each pseudotype between normal and wound conditions at both 3 and 7 d. CONCLUSIONS The AAV pseudotyping strategy represents a gene transfer technology that can result in differential transduction of dermal fibroblasts. The differences in transduction efficiency in murine and human dermal fibroblasts in both the normal and wound environment highlight issues with translatability of gene transfer techniques. These data provide a template for using pseudotyped AAV vectors in cutaneous applications.
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Affiliation(s)
- Swathi Balaji
- Division of Pediatric, General, Thoracic, and Fetal Surgery, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio 45229-3039, USA
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Singh MR, Saraf S, Vyas A, Jain V, Singh D. Innovative approaches in wound healing: trajectory and advances. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2013; 41:202-12. [PMID: 23316788 DOI: 10.3109/21691401.2012.716065] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Wound is one of the oldest suffering associated with the mankind and its history is as old as humanity. Advances in the field of medical sciences created a pile of knowledge and paved the path for the development of a separate branch specifically devoted for wound healing. The understanding and treatment strategies for wound healing have gone through a great revolution. This article reviews all the aspects of wound healing including the pathway, types and recent advances made in the wound care management in particular moist wound dressings using natural polymers, skin grafts, debridement, growth factor and drug delivery.
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Affiliation(s)
- Manju Rawat Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur (C.G.), India
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Singh MR, Saraf S, Vyas A, Jain V, Singh D. Innovative approaches in wound healing: trajectory and advances. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2013. [DOI: 10.3109/10731199.2012.716065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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41
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Vickerman V, Kim C, Kamm RD. Microfluidic Devices for Angiogenesis. MECHANICAL AND CHEMICAL SIGNALING IN ANGIOGENESIS 2013. [DOI: 10.1007/978-3-642-30856-7_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Abstract
There are a wide variety of dressing techniques and materials available for management of both acute wounds and chronic non-healing wounds. The primary objective in both the cases is to achieve a healed closed wound. However, in a chronic wound the dressing may be required for preparing the wound bed for further operative procedures such as skin grafting. An ideal dressing material should not only accelerate wound healing but also reduce loss of protein, electrolytes and fluid from the wound, and help to minimize pain and infection. The present dictum is to promote the concept of moist wound healing. This is in sharp contrast to the earlier practice of exposure method of wound management wherein the wound was allowed to dry. It can be quite a challenge for any physician to choose an appropriate dressing material when faced with a wound. Since wound care is undergoing a constant change and new products are being introduced into the market frequently, one needs to keep abreast of their effect on wound healing. This article emphasizes on the importance of assessment of the wound bed, the amount of drainage, depth of damage, presence of infection and location of wound. These characteristics will help any clinician decide on which product to use and where,in order to get optimal wound healing. However, there are no ‘magical dressings’. Dressings are one important aspect that promotes wound healing apart from treating the underlying cause and other supportive measures like nutrition and systemic antibiotics need to be given equal attention.
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Affiliation(s)
- Sujata Sarabahi
- Department of Burns and Plastic Surgery, VMMC and Safdarjung Hospital, New Delhi, India
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Wong VW, Gurtner GC. Tissue engineering for the management of chronic wounds: current concepts and future perspectives. Exp Dermatol 2012; 21:729-34. [PMID: 22742728 DOI: 10.1111/j.1600-0625.2012.01542.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2012] [Indexed: 01/13/2023]
Abstract
Chronic wounds constitute a significant and growing biomedical burden. With the increasing growth of populations prone to dysfunctional wound healing, there is an urgent and unmet need for novel strategies to both prevent and treat these complications. Tissue engineering offers the potential to create functional skin, and the synergistic efforts of biomedical engineers, material scientists, and molecular and cell biologists have yielded promising therapies for non-healing wounds. However, traditional paradigms for wound healing focus largely on the role of inflammatory cells and fail to incorporate more recent research highlighting the importance of stem cells and matrix dynamics in skin repair. Approaches to chronic wound healing centred on inflammation alone are inadequate to guide the development of regenerative medicine-based technologies. As the molecular pathways and biologic defects underlying non-healing wounds are further elucidated, multifaceted bioengineering systems must advance in parallel to exploit this knowledge. In this viewpoint essay, we highlight the current concepts in tissue engineering for chronic wounds and speculate on areas for future research in this increasingly interdisciplinary field.
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Affiliation(s)
- Victor W Wong
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
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Mittermayr R, Antonic V, Hartinger J, Kaufmann H, Redl H, Téot L, Stojadinovic A, Schaden W. Extracorporeal shock wave therapy (ESWT) for wound healing: technology, mechanisms, and clinical efficacy. Wound Repair Regen 2012; 20:456-65. [PMID: 22642362 DOI: 10.1111/j.1524-475x.2012.00796.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 02/29/2012] [Indexed: 11/30/2022]
Abstract
For almost 30 years, extracorporeal shock wave therapy has been clinically implemented as an effective treatment to disintegrate urinary stones. This technology has also emerged as an effective noninvasive treatment modality for several orthopedic and traumatic indications including problematic soft tissue wounds. Delayed/nonhealing or chronic wounds constitute a burden for each patient affected, significantly impairing quality of life. Intensive wound care is required, and this places an enormous burden on society in terms of lost productivity and healthcare costs. Therefore, cost-effective, noninvasive, and efficacious treatments are imperative to achieve both (accelerated and complete) healing of problematic wounds and reduce treatment-related costs. Several experimental and clinical studies show efficacy for extracorporeal shock wave therapy as means to accelerate tissue repair and regeneration in various wounds. However, the biomolecular mechanism by which this treatment modality exerts its therapeutic effects remains unclear. Potential mechanisms, which are discussed herein, include initial neovascularization with ensuing durable and functional angiogenesis. Furthermore, recruitment of mesenchymal stem cells, stimulated cell proliferation and differentiation, and anti-inflammatory and antimicrobial effects as well as suppression of nociception are considered important facets of the biological responses to therapeutic shock waves. This review aims to provide an overview of shock wave therapy, its history and development as well as its current place in clinical practice. Recent research advances are discussed emphasizing the role of extracorporeal shock wave therapy in soft tissue wound healing.
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Affiliation(s)
- Rainer Mittermayr
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, Vienna, Austria.
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Peng LH, Fung KP, Leung PC, Gao JQ. Genetically manipulated adult stem cells for wound healing. Drug Discov Today 2011; 16:957-66. [PMID: 21824528 DOI: 10.1016/j.drudis.2011.07.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 04/20/2011] [Accepted: 07/25/2011] [Indexed: 12/17/2022]
Abstract
New knowledge of the signal controls and activities of adult stem cells (ASCs) involved in wound repair have led to extensive investigation of the topical delivery of biomacromolecules and multipotent stem cells to injured tissues for scar-less regeneration. The transplantation of genetically recombinant stem cells, which have roles as both therapeutics and carriers for gene delivery to wound sites, represents an attractive strategy for wound treatment. Here, we compare viral and non-viral vectors and three-dimensional scaffold-based transfection strategies in terms of their biosafety, recombinant efficiency and influence on the differentiation of ASCs, to indicate the future direction of the application of recombinant ASCs in wound treatment.
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Affiliation(s)
- Li-Hua Peng
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, PR China
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Mahdipour E, Mace KA. Hox transcription factor regulation of adult bone-marrow-derived cell behaviour during tissue repair and regeneration. Expert Opin Biol Ther 2011; 11:1079-90. [PMID: 21513461 DOI: 10.1517/14712598.2011.579096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Bone marrow offers a valuable source of stem/progenitor cells that contribute to the repair of injured tissues. Failure in the function of these cells results in delayed or reduced tissue repair. Identification of factors that can correct these defects is critical to treating the underlying dysfunction. Notably, homeobox (Hox) transcription factors have been identified as having significant effects on BMDC behaviour, including differentiation, migration and adhesion in injured tissue, and may provide a basis for future therapies. AREAS COVERED Hox protein regulation of bone-marrow-derived cell (BMDC) differentiation, factors that influence BMDC behaviour in response to injury, the effects of the diabetic environment on BMDCs, methods that can be used to reprogramme BMDCs, and the use of Hox transcription factors to correct BMDC behaviour. EXPERT OPINION Hox gene therapy has been successfully employed to change cell behaviour using ex vivo 'reprogramming' strategies overexpressing selected Hox genes in BMDCs to direct the fate of these cells to the desired cell type, promoting tissue repair.
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Affiliation(s)
- Elahe Mahdipour
- University of Manchester, Healing Foundation Centre, Faculty of Life Sciences, Oxford Road, Manchester M13 9PT, UK
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Mendonça RJD, Coutinho-Netto J. Cellular aspects of wound healing. An Bras Dermatol 2010; 84:257-62. [PMID: 19668939 DOI: 10.1590/s0365-05962009000300007] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Accepted: 12/08/2008] [Indexed: 11/22/2022] Open
Abstract
Wound healing is a dynamic interactive process that involves a sequence of molecular and cellular events. Recent advances in cellular and molecular biology have greatly expanded our understanding of the biological process involved in wound repair and tissue regeneration. From plasma extravasation, with coagulation and platelet aggregation, to reepithelialization and remodeling of injured tissue, the organism acts by trying to restore functionality tissue. Thus, the present study encompasses several cellular aspects involved in the wound healing process, as well as the main drugs used in treating the pathology related to wound healing complications. Economic aspects are also addressed, mainly related to chronic wounds of diabetic feet.
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Affiliation(s)
- Ricardo José de Mendonça
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
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Jin Q, Ma PX, Giannobile WV. Platelet-Derived Growth Factor Delivery via Nanofibrous Scaffolds for Soft-Tissue Repair. Adv Skin Wound Care 2010; 1:375-381. [PMID: 25258592 PMCID: PMC4172358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Platelet-derived growth factor (PDGF) is a multifunctional growth factor that exerts its biological effects on cellular chemotaxis, proliferation, matrix synthesis, antiapoptosis, and vascularization. PDGF is clinically approved to treat neuropathic diabetic ulcers and osseous defects due to periodontal disease. THE PROBLEM The short half-life in vivo of PDGF limits the efficacy of its biological functions. Solving this problem remains a key obstacle for PDGF clinical application. Therefore, the development of an optimized controlled release delivery system offers significant potential. BASIC/CLINICAL SCIENCE ADVANCES In this article, we highlight the development of a polymeric delivery system of nanofibrous scaffolds containing PDGF-encapsulated microspheres for tissue engineering. The designed scaffolds were evaluated in a subcutaneous implantation model for tissue neogenesis, vascularization, and chemokine gene expression, as well as soft-tissue repair. PDGF was found to strongly upregulate in vivo gene expression of the CXC chemokine family members such as CXC chemokine ligand CXCL1, CXCL2, and CXCL5 that are important in angiogenesis, inflammation, and wound repair. CLINICAL CARE RELEVANCE Recombinant human PDGF is approved by the Food and Drug Administration for patients afflicted with diabetic foot ulcers or compromised periodontal wounds. Challenges related to the transient biological activity of bolus PDGF administration using currently available release systems continue. Thus, it is necessary to explore new delivery systems to optimize biological activity and bioavailability of tissue growth factors. CONCLUSION The use of a controlled, "dial-able" delivery system allows for a more tightly regulated release of factors to promote repair of soft- and hard-tissue defects for clinical application.
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Affiliation(s)
- Qiming Jin
- Department of Periodontics and Oral Medicine, Michigan Center for Oral Health Research, School of Dentistry, University of Michigan, Ann Arbor, Michigan
| | - Peter X. Ma
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan
| | - William V. Giannobile
- Department of Periodontics and Oral Medicine, Michigan Center for Oral Health Research, School of Dentistry, University of Michigan, Ann Arbor, Michigan
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan
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THEORET CHRISTINE. Tissue Engineering in Wound Repair: The three âRâsâRepair, Replace, Regenerate. Vet Surg 2009; 38:905-13. [DOI: 10.1111/j.1532-950x.2009.00585.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Peterson CY, Shaterian A, Borboa AK, Gonzalez AM, Potenza BM, Coimbra R, Eliceiri BP, Baird A. The noninvasive, quantitative, in vivo assessment of adenoviral-mediated gene delivery in skin wound biomaterials. Biomaterials 2009; 30:6788-93. [PMID: 19781761 DOI: 10.1016/j.biomaterials.2009.07.069] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Accepted: 07/29/2009] [Indexed: 01/25/2023]
Abstract
Because there are few reports using gene delivery in clinically-approved synthetic matrices, we examined the feasibility of using a noninvasive imaging system to study the kinetics of luciferase gene expression when delivered in an adenoviral vector. Using a mouse model of full thickness injury, we quantified the kinetics of gene expression, determined the optimal dose of particle delivery, and established the temporal importance of drug delivery in obtaining optimal gene expression. Specifically, we found that the ideal time to deliver adenovirus to a graft is during the early phase of graft wound closure (days 0-3 post-operatively) for a peak of gene expression to occur 7 days after delivery. Under these conditions, there is a saturating dose of 6 x 10(8) adenoviral particles per graft. In light of these findings, we examined whether the efficacy of delivery could be increased by modulating the composition of the grafts. When a collagen gene-activated matrix (GAM) containing basic fibroblast growth factor (FGF2) was compared to matrix alone, a significant increase in gene expression is observed when identical amounts of vector are delivered (p<0.05). Taken together, these results show how a noninvasive and quantitative assessment of gene expression can be used to optimize gene delivery and that the composition of matrices can dramatically influence gene expression in the wound bed.
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Affiliation(s)
- Carrie Y Peterson
- Division of Trauma, Burns and Critical Care, Department of Surgery, 200 W. Arbor Dr., University of California-San Diego, San Diego, CA 92103-8236, USA
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