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Zhu B, Liang L, Hui L, Lu Y. Exploring the role of dermal sheath cells in wound healing and fibrosis. Wound Repair Regen 2024. [PMID: 39129718 DOI: 10.1111/wrr.13206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/13/2024]
Abstract
Wound healing is a complex, dynamic process involving the coordinated interaction of diverse cell types, growth factors, cytokines, and extracellular matrix components. Despite emerging evidence highlighting their importance, dermal sheath cells remain a largely overlooked aspect of wound healing research. This review explores the multifunctional roles of dermal sheath cells in various phases of wound healing, including modulating inflammation, aiding in proliferation, and contributing to extracellular matrix remodelling. Special attention is devoted to the paracrine effects of dermal sheath cells and their role in fibrosis, highlighting their potential in improving healing outcomes, especially in differentiating between hairy and non-hairy skin sites. By drawing connections between dermal sheath cells activity and wound healing outcomes, this work proposes new insights into the mechanisms of tissue regeneration and repair, marking a step forward in our understanding of wound healing processes.
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Affiliation(s)
- Bing Zhu
- Translational Medicine Engineering Research Center of Inner Mongolia Autonomous Region, affiliated with Baotou Central Hospital, Baotou, China
| | - Lu Liang
- Translational Medicine Engineering Research Center of Inner Mongolia Autonomous Region, affiliated with Baotou Central Hospital, Baotou, China
| | - Lihua Hui
- Burn Research Institute of Inner Mongolia Autonomous Region, affiliated with Inner Mongolia Baogang Hospital, Baotou, China
| | - Yaojun Lu
- Translational Medicine Engineering Research Center of Inner Mongolia Autonomous Region, affiliated with Baotou Central Hospital, Baotou, China
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2
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Peña OA, Martin P. Cellular and molecular mechanisms of skin wound healing. Nat Rev Mol Cell Biol 2024; 25:599-616. [PMID: 38528155 DOI: 10.1038/s41580-024-00715-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 03/27/2024]
Abstract
Wound healing is a complex process that involves the coordinated actions of many different tissues and cell lineages. It requires tight orchestration of cell migration, proliferation, matrix deposition and remodelling, alongside inflammation and angiogenesis. Whereas small skin wounds heal in days, larger injuries resulting from trauma, acute illness or major surgery can take several weeks to heal, generally leaving behind a fibrotic scar that can impact tissue function. Development of therapeutics to prevent scarring and successfully repair chronic wounds requires a fuller knowledge of the cellular and molecular mechanisms driving wound healing. In this Review, we discuss the current understanding of the different phases of wound healing, from clot formation through re-epithelialization, angiogenesis and subsequent scar deposition. We highlight the contribution of different cell types to skin repair, with emphasis on how both innate and adaptive immune cells in the wound inflammatory response influence classically studied wound cell lineages, including keratinocytes, fibroblasts and endothelial cells, but also some of the less-studied cell lineages such as adipocytes, melanocytes and cutaneous nerves. Finally, we discuss newer approaches and research directions that have the potential to further our understanding of the mechanisms underpinning tissue repair.
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Affiliation(s)
- Oscar A Peña
- School of Biochemistry, University of Bristol, Bristol, UK.
| | - Paul Martin
- School of Biochemistry, University of Bristol, Bristol, UK.
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3
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Shahin H, Belcastro L, Das J, Perdiki Grigoriadi M, Saager RB, Steinvall I, Sjöberg F, Olofsson P, Elmasry M, El-Serafi AT. MicroRNA-155 mediates multiple gene regulations pertinent to the role of human adipose-derived mesenchymal stem cells in skin regeneration. Front Bioeng Biotechnol 2024; 12:1328504. [PMID: 38562669 PMCID: PMC10982420 DOI: 10.3389/fbioe.2024.1328504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction: The role of Adipose-derived mesenchymal stem cells (AD-MSCs) in skin wound healing remains to be fully characterized. This study aims to evaluate the regenerative potential of autologous AD-MSCs in a non-healing porcine wound model, in addition to elucidate key miRNA-mediated epigenetic regulations that underlie the regenerative potential of AD-MSCs in wounds. Methods: The regenerative potential of autologous AD-MSCs was evaluated in porcine model using histopathology and spatial frequency domain imaging. Then, the correlations between miRNAs and proteins of AD-MSCs were evaluated using an integration analysis in primary human AD-MSCs in comparison to primary human keratinocytes. Transfection study of AD-MSCs was conducted to validate the bioinformatics data. Results: Autologous porcine AD-MSCs improved wound epithelialization and skin properties in comparison to control wounds. We identified 26 proteins upregulated in human AD-MSCs, including growth and angiogenic factors, chemokines and inflammatory cytokines. Pathway enrichment analysis highlighted cell signalling-associated pathways and immunomodulatory pathways. miRNA-target modelling revealed regulations related to genes encoding for 16 upregulated proteins. miR-155-5p was predicted to regulate Fibroblast growth factor 2 and 7, C-C motif chemokine ligand 2 and Vascular cell adhesion molecule 1. Transfecting human AD-MSCs cell line with anti-miR-155 showed transient gene silencing of the four proteins at 24 h post-transfection. Discussion: This study proposes a positive miR-155-mediated gene regulation of key factors involved in wound healing. The study represents a promising approach for miRNA-based and cell-free regenerative treatment for difficult-to-heal wounds. The therapeutic potential of miR-155 and its identified targets should be further explored in-vivo.
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Affiliation(s)
- Hady Shahin
- Department of Hand Surgery, Plastic Surgery, and Burns, Linkoping University Hospital, Linköping, Sweden
- Department of Biomedical and Clinical Sciences, Linkoping University, Linköping, Sweden
- Faculty of Biotechnology, Modern Sciences and Arts University, October City, Cairo, Egypt
| | - Luigi Belcastro
- Department of Biomedical Engineering, Linkoping University, Linköping, Sweden
| | - Jyotirmoy Das
- Bioinformatics Unit, Core Facility (KEF), Faculty of Medicine and Health Sciences (BKV), Linköping University, Linköping, Sweden
- Clinical Genomics Linköping, SciLife Laboratory, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | | | - Rolf B. Saager
- Department of Biomedical Engineering, Linkoping University, Linköping, Sweden
| | - Ingrid Steinvall
- Department of Hand Surgery, Plastic Surgery, and Burns, Linkoping University Hospital, Linköping, Sweden
| | - Folke Sjöberg
- Department of Biomedical and Clinical Sciences, Linkoping University, Linköping, Sweden
| | - Pia Olofsson
- Department of Hand Surgery, Plastic Surgery, and Burns, Linkoping University Hospital, Linköping, Sweden
| | - Moustafa Elmasry
- Department of Hand Surgery, Plastic Surgery, and Burns, Linkoping University Hospital, Linköping, Sweden
| | - Ahmed T. El-Serafi
- Department of Hand Surgery, Plastic Surgery, and Burns, Linkoping University Hospital, Linköping, Sweden
- Department of Biomedical and Clinical Sciences, Linkoping University, Linköping, Sweden
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4
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Adjafre BL, Lima IC, Alves APNN, Lessa RA, Cunha AP, Pereira MG, Assreuy AMS, Mota MRL. Anti-inflammatory and healing effect of the polysaccharidic extract of Opuntia ficus-indica cladodes in cutaneous excisional wounds in rats. Int J Exp Pathol 2024; 105:33-44. [PMID: 37991201 PMCID: PMC10797432 DOI: 10.1111/iep.12498] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/23/2023] Open
Abstract
This study aimed to investigate the anti-inflammatory and wound healing effects of the polysaccharide extract from Opuntia ficus-indica cladodes (TPL-Ofi) using a rat cutaneous wound model. After anaesthesia, four 7-mm-diameter dorsal wounds per animal (n = 6/group for each experimental day of evaluation) were created in female Wistar rats using a surgical punch. The animals were treated topically twice daily with TPL-Ofi (0.01-1%; treated group) or sterile saline (control group) for a period of 21 days. Ulcerated tissue was collected for analysis of histological parameters (inflammation score, number of polymorphonuclear, mononuclear, fibroblast/myofibroblasts and blood vessels), immunohistochemical (fibroblast growth factor 2 [FGF-2]) and oxidative stress markers (myeloperoxidase [MPO] and glutathione [GSH]). After 21 days of treatment, body weight, net organ weight and plasma biochemical levels were measured. TPL-Ofi, containing a total carbohydrate content of 65.5% and uronic acid at 2.8%, reduced oedema on the second day and increased the nociceptive threshold on the second and third days. TPL-Ofi reduced mononuclear infiltrate on the second and MPO activity on the fifth day. TPL-Ofi increased GSH levels on the second day, as well as fibroblast/myofibroblasts counts, neoangiogenesis and FGF-2 levels on the fifth and seventh days. No changes were observed in body weight, net organ weight or toxicology assessment. Topical application of TPL-Ofi exhibited anti-inflammatory and antinociceptive effects, ultimately improving wound healing in cutaneous wounds.
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Affiliation(s)
- Beatriz Lima Adjafre
- Superior Institute of Biomedical SciencesState University of CearáFortalezaBrazil
| | - Iásly Costa Lima
- Superior Institute of Biomedical SciencesState University of CearáFortalezaBrazil
| | | | - Rafael Aires Lessa
- Faculty of Education, Sciences and Letters of Sertão CentralState University of CearáQuixadáBrazil
| | | | - Maria Gonçalves Pereira
- Faculty of Education, Sciences and Letters of Sertão CentralState University of CearáQuixadáBrazil
| | | | - Mário Rogério Lima Mota
- Department of Dental Clinic, Faculty of Pharmacy, Dentistry and NursingFederal University of CearáFortalezaBrazil
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5
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Noble A, Qubrosi R, Cariba S, Favaro K, Payne SL. Neural dependency in wound healing and regeneration. Dev Dyn 2024; 253:181-203. [PMID: 37638700 DOI: 10.1002/dvdy.650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/29/2023] Open
Abstract
In response to injury, humans and many other mammals form a fibrous scar that lacks the structure and function of the original tissue, whereas other vertebrate species can spontaneously regenerate damaged tissues and structures. Peripheral nerves have been identified as essential mediators of wound healing and regeneration in both mammalian and nonmammalian systems, interacting with the milieu of cells and biochemical signals present in the post-injury microenvironment. This review examines the diverse functions of peripheral nerves in tissue repair and regeneration, specifically during the processes of wound healing, blastema formation, and organ repair. We compare available evidence in mammalian and nonmammalian models, identifying critical nerve-mediated mechanisms for regeneration and providing future perspectives toward integrating these mechanisms into a therapeutic framework to promote regeneration.
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Affiliation(s)
- Alexandra Noble
- Department of Biomedical Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Rozana Qubrosi
- Department of Biomedical Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Solsa Cariba
- Department of Biomedical Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Kayla Favaro
- Department of Biomedical Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Samantha L Payne
- Department of Biomedical Sciences, University of Guelph, Guelph, Ontario, Canada
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6
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Bartold M, Ivanovski S. Biological processes and factors involved in soft and hard tissue healing. Periodontol 2000 2024. [PMID: 38243683 DOI: 10.1111/prd.12546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/12/2023] [Accepted: 11/23/2023] [Indexed: 01/21/2024]
Abstract
Wound healing is a complex and iterative process involving myriad cellular and biologic processes that are highly regulated to allow satisfactory repair and regeneration of damaged tissues. This review is intended to be an introductory chapter in a volume focusing on the use of platelet concentrates for tissue regeneration. In order to fully appreciate the clinical utility of these preparations, a sound understanding of the processes and factors involved in soft and hard tissue healing. This encompasses an appreciation of the cellular and biological mediators of both soft and hard tissues in general as well as specific consideration of the periodontal tissues. In light of good advances in this basic knowledge, there have been improvements in clinical strategies and therapeutic management of wound repair and regeneration. The use of platelet concentrates for tissue regeneration offers one such strategy and is based on the principles of cellular and biologic principles of wound repair discussed in this review.
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Affiliation(s)
- Mark Bartold
- University of Queensland, Brisbane, Queensland, Australia
| | - Saso Ivanovski
- University of Queensland, Brisbane, Queensland, Australia
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7
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Vu R, Dragan M, Sun P, Werner S, Dai X. Epithelial-Mesenchymal Plasticity and Endothelial-Mesenchymal Transition in Cutaneous Wound Healing. Cold Spring Harb Perspect Biol 2023; 15:a041237. [PMID: 36617638 PMCID: PMC10411868 DOI: 10.1101/cshperspect.a041237] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Epithelial and endothelial cells possess the inherent plasticity to undergo morphological, cellular, and molecular changes leading to their resemblance of mesenchymal cells. A prevailing notion has been that cutaneous wound reepithelialization involves partial epithelial-to-mesenchymal transition (EMT) of wound-edge epidermal cells to enable their transition from a stationary state to a migratory state. In this review, we reflect on past findings that led to this notion and discuss recent studies that suggest a refined view, focusing predominantly on in vivo results using mammalian excisional wound models. We highlight the concept of epithelial-mesenchymal plasticity (EMP), which emphasizes a reversible conversion of epithelial cells across multiple intermediate states within the epithelial-mesenchymal spectrum, and discuss the critical importance of restricting EMT for effective wound reepithelialization. We also outline the current state of knowledge on EMP in pathological wound healing, and on endothelial-to-mesenchymal transition (EndMT), a process similar to EMT, as a possible mechanism contributing to wound fibrosis and scar formation. Harnessing epithelial/endothelial-mesenchymal plasticity may unravel opportunities for developing new therapeutics to treat human wound healing pathologies.
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Affiliation(s)
- Remy Vu
- Department of Biological Chemistry, University of California, Irvine, California 92697-1700, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, California 92697-1700, USA
| | - Morgan Dragan
- Department of Biological Chemistry, University of California, Irvine, California 92697-1700, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, California 92697-1700, USA
| | - Peng Sun
- Department of Biological Chemistry, University of California, Irvine, California 92697-1700, USA
| | - Sabine Werner
- Institute of Molecular Health Sciences, Department of Biology, 8093 ETH Zurich, Switzerland
| | - Xing Dai
- Department of Biological Chemistry, University of California, Irvine, California 92697-1700, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, California 92697-1700, USA
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8
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Zheng SY, Wan XX, Kambey PA, Luo Y, Hu XM, Liu YF, Shan JQ, Chen YW, Xiong K. Therapeutic role of growth factors in treating diabetic wound. World J Diabetes 2023; 14:364-395. [PMID: 37122434 PMCID: PMC10130901 DOI: 10.4239/wjd.v14.i4.364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/16/2023] [Accepted: 03/21/2023] [Indexed: 04/12/2023] Open
Abstract
Wounds in diabetic patients, especially diabetic foot ulcers, are more difficult to heal compared with normal wounds and can easily deteriorate, leading to amputation. Common treatments cannot heal diabetic wounds or control their many complications. Growth factors are found to play important roles in regulating complex diabetic wound healing. Different growth factors such as transforming growth factor beta 1, insulin-like growth factor, and vascular endothelial growth factor play different roles in diabetic wound healing. This implies that a therapeutic modality modulating different growth factors to suit wound healing can significantly improve the treatment of diabetic wounds. Further, some current treatments have been shown to promote the healing of diabetic wounds by modulating specific growth factors. The purpose of this study was to discuss the role played by each growth factor in therapeutic approaches so as to stimulate further therapeutic thinking.
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Affiliation(s)
- Shen-Yuan Zheng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
| | - Xin-Xing Wan
- Department of Endocrinology, Third Xiangya Hospital, Central South University, Changsha 410013, Hunan Province, China
| | - Piniel Alphayo Kambey
- Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
| | - Yan Luo
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Xi-Min Hu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
| | - Yi-Fan Liu
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Jia-Qi Shan
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Yu-Wei Chen
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
- Key Laboratory of Emergency and Trauma, College of Emergency and Trauma, Hainan Medical University, Haikou 571199, Hainan Province, China
- Hunan Key Laboratory of Ophthalmology, Central South University, Changsha 410013, Hunan Province, China
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9
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Kuang LW, Zhang CC, Li BH, Liu HZ, Wang H, Li GC. Identification of the MALAT1/miR-106a-5p/ZNF148 feedback loop in regulating HaCaT cell proliferation, migration and apoptosis. Regen Med 2023; 18:239-258. [PMID: 36710662 DOI: 10.2217/rme-2022-0189] [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: 01/31/2023] Open
Abstract
Aims: This study aims to investigate the function of positive feedback loops involving noncoding RNA in diabetic wound healing. Methods: We developed a mouse diabetic wound model to confirm that hyperglycemia can impair wound healing. We also used an in vitro keratinocyte model in high-glucose conditions to investigate the mechanism of delayed wound healing. Results: MALAT1 was decreased in diabetic mouse wound tissue and can promote keratinocyte biological functions. MALAT1 could bind to miR-106a-5p to modulate the expression of ZNF148, a target gene of miR-106a-5p. Surprisingly, ZNF148 bound to a region in the MALAT1 promoter to stimulate gene expression. Conclusion: ZNF148-activated MALAT1 increases ZNF148 expression by competitively binding miR-106a-3p, generating a positive feedback loop that enhances keratinocyte function.
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Affiliation(s)
- Li-Wen Kuang
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430062, PR China
| | - Chen-Chen Zhang
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430062, PR China
| | - Bing-Hui Li
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430062, PR China
| | - Hui-Zhen Liu
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430062, PR China
| | - Hui Wang
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430062, PR China
| | - Gong-Chi Li
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430022, PR China
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10
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Lemaire G, Olivero M, Rouquet V, Moga A, Pagnon A, Cenizo V, Portes P. Neryl acetate, the major component of Corsican Helichrysum italicum essential oil, mediates its biological activities on skin barrier. PLoS One 2023; 18:e0268384. [PMID: 36867611 PMCID: PMC9983847 DOI: 10.1371/journal.pone.0268384] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 02/21/2023] [Indexed: 03/04/2023] Open
Abstract
Corsican Helichrysum italicum essential oil (HIEO) is characterized by high concentrations of neryl acetate, and we previously demonstrated that Corsican HIEO increases the expression of genes that are part of the differentiation complex (involucrin, small proline rich proteins, late cornified envelope, S100 protein family). The biological activities of HIEO and neryl acetate (NA) were compared to identify how NA contributes to HIEO activity on human skin. NA, as a part component of HIEO, was tested on skin explant models for 24 hours and 5 days in comparison with HIEO. We analyzed the biological regulations in the skin explant by transcriptomic analysis, skin barrier protein immunofluorescence, lipid staining and ceramide analysis by liquid chromatography-mass spectrometry. Transcriptomic analysis revealed that 41.5% of HIEO-modulated genes were also regulated by NA and a selected panel of genes were confirmed by qquantitative reverse transcription PCR analysis. Those genes are involved in epidermal differentiation, skin barrier formation and ceramide synthesis. Involucrin (IVL), involved in formation of the cornified envelope (CE), was upregulated at both gene and protein levels after 24 hours and 5 days respectively. After 5 days of treatment, total lipids and ceramides were also increased. Our results demonstrate that NA mediates a large part of Corsican HIEO activity on skin barrier formation.
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Affiliation(s)
| | | | | | - Alain Moga
- QIMA Life Sciences–Synelvia, Labège, France
| | | | | | - Pascal Portes
- Laboratoires M&L SA–Groupe L’Occitane, Manosque, France
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11
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Tan MLL, Chin JS, Madden L, Becker DL. Challenges faced in developing an ideal chronic wound model. Expert Opin Drug Discov 2023; 18:99-114. [PMID: 36573018 DOI: 10.1080/17460441.2023.2158809] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Chronic wounds are a major drain on healthcare resources and can lead to substantial reductions in quality of life for those affected. Moreover, they often precede serious events such as limb amputations and premature death. In the long run, this burden is likely to escalate with an ageing population and lifestyle diseases such as obesity. Thus far, the identification of beneficial therapeutics against chronic wounds have been hindered by the lack of an ideal chronic wound animal model. Although animal models of delayed healing have been developed, none of these models fully recapitulate the complexity of the human chronic wound condition. Furthermore, most animals do not develop chronic wounds. Only the thoroughbred racehorse develops chronic ulcers. AREAS COVERED In this review, the different characteristics of chronic wounds that highlight its complexity are described. In addition, currently available models reflecting different aspects of chronic wound pathology and their relevance to human chronic wounds are discussed. This article concludes by listing relevant features representative of an ideal chronic wound model. Additionally, alternative approaches for the development of chronic wound models are discussed. EXPERT OPINION Delayed models of healing, including the streptozotocin diabetic model, skin flap model and magnet-induced IR models have emerged. While these models have been widely adopted for preclinical therapeutic testing, their relevance towards human chronic wounds remains debatable. In particular, current delayed healing models often fail to fully incorporate the key characteristics of chronic ulcers. Ultimately, more representative models are required to expedite the advancement of novel therapeutics to the clinic.
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Affiliation(s)
- Mandy Li Ling Tan
- Nanyang Institute of Health Technologies, Interdisciplinary Graduate School, Nanyang Technological University, 639798, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
| | - Jiah Shin Chin
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
| | - Leigh Madden
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
| | - David L Becker
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore.,Skin Research Institute Singapore, Clinical Sciences Building, 11 Mandalay Road, 308232, Singapore.,National Skin Centre, Mandalay Road, Singapore
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12
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Morozov AM, Sergeev AN, Sungurova AV, Morozov DV, Belyak MA, Domracheva AS. Computer simulation of the wound process (review of literature). BULLETIN OF THE MEDICAL INSTITUTE "REAVIZ" (REHABILITATION, DOCTOR AND HEALTH) 2022. [DOI: 10.20340/vmi-rvz.2023.1.ictm.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Relevance. Computer simulation is a mathematical modeling process performed on a computer that is designed to predict the behavior or results of a real or physical system. Computer simulation has a number of advantages over classical models of animal experiments: the cheapness of the method (the need to acquire and maintain animals disappears by itself), the speed of obtaining results, the absence of bioethical problems, the ability to change the conditions of the experiment, etc.he purpose of this study is to review the methods of computer simulation of the wound process, to identify the shortcomings of the models and propose ways to solve them, as well as to select the best existing model for describing wound regeneration.Material and methods. In the course of this work, an analysis was made of foreign and domestic literature on the problem of computer modeling of the wound process.Results. After analyzing the relevant literature on this topic, the problem is seen precisely in the insufficiently studied process of wound regeneration, since many different cells, cytokines, growth factors, enzymes, fibrillar proteins, etc. take part in it. The models that currently exist describe wound regeneration only in an extremely generalized way, which does not allow us to apply them in clinical situations. Analyzing literature sources, we came to the conclusion that both numerical approaches, both cellular-biochemical (the first type of models) and phenomenological (the second type) are applicable in the case of wound modeling and can be used very successfully. The problem is that on the basis of one approach it is impossible to display a complete picture of wound healing, in this way it is possible to predict only individual regeneration parameters necessary for certain purposes due to the complexity and versatility of this typical pathophysiological process.Conclusion. Computer modeling of wounds is still a controversial and complex topic. Existing models are not intended to describe all the processes occurring in a healing wound. It is much more productive to describe the various phenomena during healing separately. This is due to the fact that many elements are involved in the regeneration of the skin, which are almost impossible to take into account in full. The available models are of exclusively scientific value, consisting in attempts to understand all complex processes and interactions. Practical application is difficult, since existing models require specific input data that require highly specialized equipment. If we abstract from all this, then the best existing model of the first type is the model of the authors Yangyang Wang, Christian F. Guerrero-Juarez, Yuchi Qiu and co-authors, in addition to it, any of the described phenomenological models will do.
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13
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Wang H, Yan X, Jin Z, Wang Y, Lin Y, Zhao K. N‐2‐hydroxypropyl trimethyl ammonium chloride chitosan‐glycerol complex temperature‐sensitive hydrogel for wound dressing. J Appl Polym Sci 2022. [DOI: 10.1002/app.53112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongli Wang
- School of Life Science, College of Chemistry and Material Sciences Heilongjiang University Harbin Heilongjiang Province China
- Institute of Nanobiomaterials and Immunology, School of Life Science Taizhou University Taizhou China
| | - Xingye Yan
- School of Life Science, College of Chemistry and Material Sciences Heilongjiang University Harbin Heilongjiang Province China
| | - Zheng Jin
- School of Life Science, College of Chemistry and Material Sciences Heilongjiang University Harbin Heilongjiang Province China
- Institute of Nanobiomaterials and Immunology, School of Life Science Taizhou University Taizhou China
| | - Yiyu Wang
- Institute of Nanobiomaterials and Immunology, School of Life Science Taizhou University Taizhou China
| | - Yuhong Lin
- Institute of Nanobiomaterials and Immunology, School of Life Science Taizhou University Taizhou China
| | - Kai Zhao
- School of Life Science, College of Chemistry and Material Sciences Heilongjiang University Harbin Heilongjiang Province China
- Institute of Nanobiomaterials and Immunology, School of Life Science Taizhou University Taizhou China
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14
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Dou J, Zhang Z, Xu X, Zhang X. Exploring the effects of Chinese herbal ingredients on the signaling pathway of alopecia and the screening of effective Chinese herbal compounds. JOURNAL OF ETHNOPHARMACOLOGY 2022; 294:115320. [PMID: 35483562 DOI: 10.1016/j.jep.2022.115320] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE alopecia is a hair disorder that can add a significant medical and psychological burden to patients. Currently, the FDA-approved drugs for the treatment of androgenetic alopecia (AGA) are minoxidil and finasteride and immunosuppressives are therapeutic options for alopecia areata (AA), but the objective adverse effects and high cost of these treatments reduce patient compliance and thus the effectiveness of the drugs. Traditional Chinese medicine (TCM) has good efficacy, a high safety profile and low treatment costs, but its mechanism of action is still not fully understood. The use of signaling pathways to modulate hair loss is a major direction in the study of the pathogenesis and pharmacology of alopecia. AIM OF THE STUDY This review aims to collect the results of experimental studies related to alopecia, to screen previously documented combinations of herbs claimed to be effective based on the herbs and their constituent compounds used in the identified studies, and to uncover other useful information that we hope will better guide the clinical application and scientific research of drug combinations or individual herbs for the treatment of alopecia. MATERIALS AND METHODS We have reviewed experimental studies to determine the methods used and the mechanisms of action of the herbs and constituent compounds. The following keywords were searched in databases, including PubMed, EMBASE, CNKI and CSTJ." Medicinal plants" "Chinese herbal medicine", "hair loss", " alopecia", "androgenetic alopecia" and " alopecia areata ". We also collected combinations of drugs from books approved by various schools for screening. RESULTS Using known combinations of compounds within herbal medicine to match the documented combinations, 34 topical combinations and 74 oral combinations were identified, and among the 108 herbal combinations screened Angelica, Rehmannia glutinosaLigusticum chuanxiong hort, Radix Rehmanniae, etc. The number of occurrences was very high, and the association with vascular drugs was also found to be very close. CONCLUSIONS This review further elucidates the therapeutic mechanisms of the compounds within the herbal components associated with alopecia and screens for other combinations that may be dominated by this component for the treatment of alopecia, uncovering compounds from other drugs that may be key factors in the treatment of alopecia. This improvement will provide a better quality of evidence for the effectiveness of herbs and compounds used to treat alopecia.
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Affiliation(s)
- Jinjin Dou
- The First Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Zhiming Zhang
- The First Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Xianrong Xu
- The First Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Xiwu Zhang
- Institute of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
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15
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Wang Y, Song W, Zhou S, Chang S, Chang J, Tian J, Zhang L, Li J, Che G. The genomic and transcriptome characteristics of lung adenocarcinoma patients with previous breast cancer. BMC Cancer 2022; 22:618. [PMID: 35668376 PMCID: PMC9171992 DOI: 10.1186/s12885-022-09727-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/25/2022] [Indexed: 02/08/2023] Open
Abstract
Background Breast cancer and lung cancer are the top two malignancies in the female population and the number of patients with breast cancer and subsequent primary lung cancer has increased significantly in recent years. However, the unique molecular characteristics of this group of patients remains unclear. Purpose To identify the genomic and transcriptome characteristics of primary lung adenocarcinoma patients with previous breast cancer by comparison with single primary lung adenocarcinoma (SPLA) patients. Methods The tumor and normal pulmonary tissue specimens of ten primary pulmonary adenocarcinoma patients with previous breast cancer (multiple primary cancer, MPC) and ten SPLA patients were prospectively collected. The whole exome sequencing (WES) and RNA sequencing (RNA-seq) were performed to analyze the gene mutation and expression differences between MPC and SPC patients. Results The results of WES indicated that the mutations of TRIM73, DLX6 and CNGB1 only existed in MPC patients. The results of RNA-seq manifested the occurrence of second primary lung adenocarcinoma in breast cancer patients was closely associated with cytokine-cytokine receptor action, autophagy, PI3L-Akt, cAMP and calcium ion signaling pathways. Besides, the expression levels of FGF10 and VEGFA genes were significantly increased in MPC patients. Conclusion The occurrence of second primary lung adenocarcinoma may be related to the cytokine-cytokine receptor action, autophagy, PI3L-Akt, cAMP and calcium ion signaling pathways. Furthermore, the mutations of TRIM73, DLX6 and CNGB1 and high expression of FGF10 and VEGFA might play an important role in the development of lung adenocarcinoma in breast cancer patients. However, more in-depth investigations are needed to verify above findings. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09727-6.
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Affiliation(s)
- Yan Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Wenpeng Song
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Sicheng Zhou
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Shuai Chang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Junke Chang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Jie Tian
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Liming Zhang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Jue Li
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Guowei Che
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China.
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16
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Yeganeh PM, Tahmasebi S, Esmaeilzadeh A. Cellular and biological factors involved in healing wounds and burns and treatment options in tissue engineering. Regen Med 2022; 17:401-418. [PMID: 35545963 DOI: 10.2217/rme-2022-0029] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Severe traumatic wounds and burns have a high chance of mortality and can leave survivors with many functional disabilities and cosmetic problems, including scars. The healing process requires a harmonious interplay of various cells and growth factors. Different structures of the skin house numerous cells, matrix components and growth factors. Any disturbance in the balance between these components can impair the healing process. The function of cells and growth factors can be manipulated and facilitated to aid tissue repair. In the current review, the authors focus on the importance of the skin microenvironment, the pathophysiology of various types of burns, mechanisms and factors involved in skin repair and wound healing and regeneration of the skin using tissue engineering approaches.
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Affiliation(s)
| | - Safa Tahmasebi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdolreza Esmaeilzadeh
- Department of immunology, School of Medicine, Zanjan University of Medical Science, Zanjan, 4513956111, Iran.,Cancer Gene Therapy Research Center, Zanjan University of Medical Science, Zanjan, Iran
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17
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Li R, Liu K, Huang X, Li D, Ding J, Liu B, Chen X. Bioactive Materials Promote Wound Healing through Modulation of Cell Behaviors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105152. [PMID: 35138042 PMCID: PMC8981489 DOI: 10.1002/advs.202105152] [Citation(s) in RCA: 96] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/24/2021] [Indexed: 05/13/2023]
Abstract
Skin wound repair is a multistage process involving multiple cellular and molecular interactions, which modulate the cell behaviors and dynamic remodeling of extracellular matrices to maximize regeneration and repair. Consequently, abnormalities in cell functions or pathways inevitably give rise to side effects, such as dysregulated inflammation, hyperplasia of nonmigratory epithelial cells, and lack of response to growth factors, which impedes angiogenesis and fibrosis. These issues may cause delayed wound healing or even non-healing states. Current clinical therapeutic approaches are predominantly dedicated to preventing infections and alleviating topical symptoms rather than addressing the modulation of wound microenvironments to achieve targeted outcomes. Bioactive materials, relying on their chemical, physical, and biological properties or as carriers of bioactive substances, can affect wound microenvironments and promote wound healing at the molecular level. By addressing the mechanisms of wound healing from the perspective of cell behaviors, this review discusses how bioactive materials modulate the microenvironments and cell behaviors within the wounds during the stages of hemostasis, anti-inflammation, tissue regeneration and deposition, and matrix remodeling. A deeper understanding of cell behaviors during wound healing is bound to promote the development of more targeted and efficient bioactive materials for clinical applications.
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Affiliation(s)
- Ruotao Li
- Department of Hand and Foot SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130065P. R. China
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
| | - Kai Liu
- Department of Hand and Foot SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130065P. R. China
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
| | - Xu Huang
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
- Department of Hepatobiliary and Pancreatic SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130065P. R. China
| | - Di Li
- Department of Hepatobiliary and Pancreatic SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130065P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
| | - Bin Liu
- Department of Hand and Foot SurgeryThe First Hospital of Jilin University1 Xinmin StreetChangchun130065P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
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18
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Morgner B, Husmark J, Arvidsson A, Wiegand C. Effect of a DACC-coated dressing on keratinocytes and fibroblasts in wound healing using an in vitro scratch model. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:22. [PMID: 35133505 PMCID: PMC8825393 DOI: 10.1007/s10856-022-06648-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Wound dressings that exert an antimicrobial effect in order to prevent and treat wound infections can be harmful to the wound healing process. Dressings with hydrophobic coatings, however, have been suggested to both reduce the microbial load and promote the healing process. Therefore, the potential effects of a dialkylcarbamoyl chloride (DACC)-coated dressing on fibroblasts and keratinocytes in wound healing were studied using mechanical scratch wounding of confluent cell layers as an in vitro model. Additionally, gene expression analysis by qRT-PCR was used to elucidate the longitudinal effects of the DACC-coated dressing on cell responses, specifically inflammation, growth factor induction and collagen synthesis. DACC promoted cell viability, did not stick to the cell layers, and supported normal wound healing progression in vitro. In contrast, cells became attached to the uncoated reference material, which inhibited scratch closure. Moreover, DACC slightly induced KGF, VEGF, and GM-CSF expression in HaCaT cells and NHDF. Physiological COL1A1 and COL3A1 gene expression by NHDF was observed under DACC treatment with no observable effect on S100A7 and RNASE7 levels in HaCaT cells. Overall, the DACC coating was found to be safe and may positively influence the wound healing outcome. Graphical abstract.
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Affiliation(s)
- Bianka Morgner
- Department of Dermatology, University Hospital Jena, Jena, Germany
| | | | | | - Cornelia Wiegand
- Department of Dermatology, University Hospital Jena, Jena, Germany.
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19
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Niehues H, Rikken G, van Vlijmen-Willems IM, Rodijk-Olthuis D, van Erp PE, Zeeuwen PL, Schalkwijk J, van den Bogaard EH. Identification of Keratinocyte Mitogens: Implications for Hyperproliferation in Psoriasis and Atopic Dermatitis. JID INNOVATIONS 2022; 2:100066. [PMID: 35146480 PMCID: PMC8801538 DOI: 10.1016/j.xjidi.2021.100066] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/12/2021] [Accepted: 08/09/2021] [Indexed: 02/08/2023] Open
Abstract
Psoriasis and atopic dermatitis are chronic inflammatory skin diseases characterized by keratinocyte (KC) hyperproliferation and epidermal acanthosis (hyperplasia). The milieu of disease-associated cytokines and soluble factors is considered a mitogenic factor; however, pinpointing the exact mitogens in this complex microenvironment is challenging. We employed organotypic human epidermal equivalents, faithfully mimicking native epidermal proliferation and stratification, to evaluate the proliferative effects of a broad panel of (literature-based) potential mitogens. The KC GF molecule, the T-helper 2 cytokines IL-4 and IL-13, and the psoriasis-associated cytokine IL-17A caused acanthosis by hyperplasia through a doubling in the number of proliferating KCs. In contrast, IFN-γ lowered proliferation, whereas IL-6, IL-20, IL-22, and oncostatin M induced acanthosis not by hyperproliferation but by hypertrophy. The T-helper 2‒cytokine‒mediated hyperproliferation was Jak/signal transducer and activator of transcription 3 dependent, whereas IL-17A and KC GF induced MAPK/extracellular signal‒regulated kinase kinase/extracellular signal‒regulated kinase‒dependent proliferation. This discovery that key regulators in atopic dermatitis and psoriasis are direct KC mitogens not only adds evidence to their crucial role in the pathophysiological processes but also highlights an additional therapeutic pillar for the mode of action of targeting biologicals (e.g., dupilumab) or small-molecule drugs (e.g., tofacitinib) by the normalization of KC turnover within the epidermal compartment.
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Key Words
- 3D, three-dimensional
- AD, atopic dermatitis
- ERK, extracellular signal‒regulated kinase
- EdU, 5-ethynyl-2′-deoxyuridine
- HEE, human epidermal equivalent
- KC, keratinocyte
- KGF, keratinocyte GF
- MEK, MAPK/ extracellular signal‒regulated kinase kinase
- STAT, signal transducer and activator of transcription
- Th, T helper
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Affiliation(s)
- Hanna Niehues
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Gijs Rikken
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Ivonne M.J.J. van Vlijmen-Willems
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Piet E.J. van Erp
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Patrick L.J.M. Zeeuwen
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Ellen H. van den Bogaard
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
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20
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Teaima MH, Elasaly MK, Omar SA, El-Nabarawi MA, Shoueir KR. Wound healing activities of polyurethane modified chitosan nanofibers loaded with different concentrations of linezolid in an experimental model of diabetes. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.102982] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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21
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Haque ST, Saha SK, Haque ME, Biswas N. Nanotechnology-based therapeutic applications: in vitro and in vivo clinical studies for diabetic wound healing. Biomater Sci 2021; 9:7705-7747. [PMID: 34709244 DOI: 10.1039/d1bm01211h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diabetic wounds often indicate chronic complications that are difficult to treat. Unfortunately, existing conventional treatment modalities often cause unpremeditated side effects, given the need to develop alternative therapeutic phenotypes that are safe or have minimal side effects and risks. Nanotechnology-based platforms, including nanotherapeutics, nanoparticles (NPs), nanofibers, nanohydrogels, and nanoscaffolds, have garnered attention for their groundbreaking potential to decipher the biological environment and offer personalized treatment methods for wound healing. These nanotechnology-based platforms can successfully overcome the impediments posed by drug toxicity, existing treatment modalities, and the physiology and complexity of the wound sites. Furthermore, studies have shown that they play an essential role in influencing angiogenesis, collagen production, and extracellular matrix (ECM) synthesis, which are integral in skin repair mechanisms. In this review, we emphasized the importance of various nanotechnology-based platforms for healing diabetic wounds and report on the innovative preclinical and clinical outcomes of different nanotechnology-based platforms. This review also outlined the limitations of existing conventional treatment modalities and summarized the physiology of acute and chronic diabetic wounds.
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Affiliation(s)
- Sheikh Tanzina Haque
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
| | - Subbroto Kumar Saha
- Department of Biochemistry and Molecular Medicine, University of California, Davis School of Medicine, Sacramento, CA 95817, USA.,Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, 120 Neugdong-ro, Gwangjin-gu, Seoul 05029, Korea.
| | - Md Enamul Haque
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Nirupam Biswas
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN-46202, USA.,Department of Immunology and Microbial Diseases, Albany Medical College, Albany, NY-12208, USA.
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22
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Ji X, Tong H, Settlage R, Yao W, Jiang H. Establishment of a bovine rumen epithelial cell line. J Anim Sci 2021; 99:6376558. [PMID: 34570883 DOI: 10.1093/jas/skab273] [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: 08/09/2021] [Accepted: 09/22/2021] [Indexed: 11/13/2022] Open
Abstract
Rumen epithelium plays an essential role in absorption, transport, and metabolism of short-chain fatty acids, the main products of rumen fermentation, and in preventing microbes and other potentially harmful rumen contents from entering the systemic circulation. The objective of this study was to generate an immortal rumen epithelial cell line that can be used as a convenient model of rumen epithelial cells in vitro. We isolated primary rumen epithelial cells from a steer through trypsin digestion and transduced them with lentiviruses expressing the Simian Virus (SV) 40 T antigen. We cloned the transduced cells by limiting dilution. Western blotting analysis confirmed the expression of the SV40 T antigen in two single-cell clones. Cells from one clone, named bovine rumen epithelial clone 1 (BREC1), displayed a flat and squamous morphology in culture. RNA sequencing revealed that BREC1 cells expressed many markers of epithelial cells, including keratins, the epidermal growth factor receptor, and the short-chain fatty acid transporters monocarboxylic acid transporter (MCT) 1 (MCT-1) and MCT-4. RNA sequencing revealed that BREC1 cells expressed key enzymes such as 3-hydroxymethyl-3-methylglutaryl-CoA lyase and 3-hydroxy-3-methylglutaryl-CoA synthase 1 involved in ketogenesis, a unique function of rumen epithelial cells. RNA sequencing also revealed the expression of genes encoding tight junctions, desmosomes, anchoring junctions, and polarized plasma membranes, structures typical of epithelial cells, in BREC1 cells. Cell proliferation assays indicated that BREC1 cells were similar to primary rumen epithelial cells in response to insulin-like growth factor 1, insulin, and butyrate. In conclusion, BREC1 is not only a convenient but an appropriate model for studying the factors and mechanisms that control proliferation, apoptosis, differentiation, nutrient transport, metabolism, and barrier function in rumen epithelium.
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Affiliation(s)
- Xu Ji
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA.,College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Huili Tong
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA.,Department of Cell and Developmental Biology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Robert Settlage
- Advanced Research Computing, Virginia Tech, Blacksburg, VA 24061, USA
| | - Wen Yao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Honglin Jiang
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA
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23
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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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24
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The Role of MSC in Wound Healing, Scarring and Regeneration. Cells 2021; 10:cells10071729. [PMID: 34359898 PMCID: PMC8305394 DOI: 10.3390/cells10071729] [Citation(s) in RCA: 149] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 02/06/2023] Open
Abstract
Tissue repair and regeneration after damage is not completely understood, and current therapies to support this process are limited. The wound healing process is associated with cell migration and proliferation, extracellular matrix remodeling, angiogenesis and re-epithelialization. In normal conditions, a wound will lead to healing, resulting in reparation of the tissue. Several risk factors, chronic inflammation, and some diseases lead to a deficient wound closure, producing a scar that can finish with a pathological fibrosis. Mesenchymal stem/stromal cells (MSCs) are widely used for their regenerative capacity and their possible therapeutically potential. Derived products of MSCs, such as exosomes or extravesicles, have shown a therapeutic potential similar to MSCs, and these cell-free products may be interesting in clinics. MSCs or their derivative products have shown paracrine beneficial effects, regulating inflammation, modifying the fibroblast activation and production of collagen and promoting neovascularization and re-epithelialization. This review describes the effects of MSCs and their derived products in each step of the wound repair process. As well, it reviews the pre-clinical and clinical use of MSCs to benefit in skin wound healing in diabetic associated wounds and in pathophysiological fibrosis.
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25
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Riihilä P, Nissinen L, Kähäri V. Matrix metalloproteinases in keratinocyte carcinomas. Exp Dermatol 2021; 30:50-61. [PMID: 32869366 PMCID: PMC7821196 DOI: 10.1111/exd.14183] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/10/2020] [Accepted: 08/24/2020] [Indexed: 12/14/2022]
Abstract
The incidence of cutaneous keratinocyte-derived cancers is increasing globally. Basal cell carcinoma (BCC) is the most common malignancy worldwide, and cutaneous squamous cell carcinoma (cSCC) is the most common metastatic skin cancer. BCC can be classified into subtypes based on the histology, and these subtypes are classified further into low- and high-risk tumors. There is an increasing need to identify new therapeutic strategies for the treatment of unresectable and metastatic cSCC, and for aggressive BCC variants such as infiltrating, basosquamous or morpheaform BCCs. The most important risk factor for BCC and cSCC is solar UV radiation, which causes genetic and epigenetic alterations in keratinocytes. Similar gene mutations are noted already in sun-exposed normal skin emphasizing the role of the alterations in the tumor microenvironment in the progression of cSCC. Early events in cSCC progression are alterations in the composition of basement membrane and dermal extracellular matrix induced by influx of microbes, inflammatory cells and activated stromal fibroblasts. Activated fibroblasts promote inflammation and produce growth factors and proteolytic enzymes, including matrix metalloproteinases (MMPs). Transforming growth factor-β produced by tumor cells and fibroblasts induces the expression of MMPs by cSCC cells and promotes their invasion. Fibroblast-derived keratinocyte growth factor suppresses the malignant phenotype of cSCC cells by inhibiting the expression of several MMPs. These findings emphasize the importance of interplay of tumor and stromal cells in the progression of cSCC and BCC and suggest tumor microenvironment as a therapeutic target in cSCC and aggressive subtypes of BCC.
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Affiliation(s)
- Pilvi Riihilä
- Department of DermatologyUniversity of Turku and Turku University HospitalTurkuFinland
- FICAN West Cancer Centre Research LaboratoryUniversity of Turku and Turku University HospitalTurkuFinland
| | - Liisa Nissinen
- Department of DermatologyUniversity of Turku and Turku University HospitalTurkuFinland
- FICAN West Cancer Centre Research LaboratoryUniversity of Turku and Turku University HospitalTurkuFinland
| | - Veli‐Matti Kähäri
- Department of DermatologyUniversity of Turku and Turku University HospitalTurkuFinland
- FICAN West Cancer Centre Research LaboratoryUniversity of Turku and Turku University HospitalTurkuFinland
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26
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Guan Y, Yang YJ, Nagarajan P, Ge Y. Transcriptional and signalling regulation of skin epithelial stem cells in homeostasis, wounds and cancer. Exp Dermatol 2020; 30:529-545. [PMID: 33249665 DOI: 10.1111/exd.14247] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/10/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023]
Abstract
The epidermis and skin appendages are maintained by their resident epithelial stem cells, which undergo long-term self-renewal and multilineage differentiation. Upon injury, stem cells are activated to mediate re-epithelialization and restore tissue function. During this process, they often mount lineage plasticity and expand their fates in response to damage signals. Stem cell function is tightly controlled by transcription machineries and signalling transductions, many of which derail in degenerative, inflammatory and malignant dermatologic diseases. Here, by describing both well-characterized and newly emerged pathways, we discuss the transcriptional and signalling mechanisms governing skin epithelial homeostasis, wound repair and squamous cancer. Throughout, we highlight common themes underscoring epithelial stem cell plasticity and tissue-level crosstalk in the context of skin physiology and pathology.
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Affiliation(s)
- Yinglu Guan
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Youn Joo Yang
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Priyadharsini Nagarajan
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yejing Ge
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Munoz LD, Sweeney MJ, Jameson JM. Skin Resident γδ T Cell Function and Regulation in Wound Repair. Int J Mol Sci 2020; 21:E9286. [PMID: 33291435 PMCID: PMC7729629 DOI: 10.3390/ijms21239286] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/26/2020] [Accepted: 12/02/2020] [Indexed: 12/12/2022] Open
Abstract
The skin is a critical barrier that protects against damage and infection. Within the epidermis and dermis reside γδ T cells that play a variety of key roles in wound healing and tissue homeostasis. Skin-resident γδ T cells require T cell receptor (TCR) ligation, costimulation, and cytokine reception to mediate keratinocyte activity and inflammatory responses at the wound site for proper wound repair. While both epidermal and dermal γδ T cells regulate inflammatory responses in wound healing, the timing and factors produced are distinct. In the absence of growth factors, cytokines, and chemokines produced by γδ T cells, wound repair is negatively impacted. This disruption in γδ T cell function is apparent in metabolic diseases such as obesity and type 2 diabetes. This review provides the current state of knowledge on skin γδ T cell activation, regulation, and function in skin homeostasis and repair in mice and humans. As we uncover more about the complex roles played by γδ T cells in wound healing, novel targets can be discovered for future clinical therapies.
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Affiliation(s)
| | | | - Julie M. Jameson
- Department of Biological Sciences, California State University San Marcos, San Marcos, CA 92096, USA; (L.D.M.); (M.J.S.)
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Tissue-scale tensional homeostasis in skin regulates structure and physiological function. Commun Biol 2020; 3:637. [PMID: 33127987 PMCID: PMC7603398 DOI: 10.1038/s42003-020-01365-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023] Open
Abstract
Tensional homeostasis is crucial for organ and tissue development, including the establishment of morphological and functional properties. Skin plays essential roles in waterproofing, cushioning and protecting deeper tissues by forming internal tension-distribution patterns, which involves aligning various cells, appendages and extracellular matrices (ECMs). The balance of traction force is thought to contribute to the formation of strong and pliable physical structures that maintain their integrity and flexibility. Here, by using a human skin equivalent (HSE), the horizontal tension-force balance of the dermal layer was found to clearly improve HSE characteristics, such as the physical relationship between cells and the ECM. The tension also promoted skin homeostasis through the activation of mechano-sensitive molecules such as ROCK and MRTF-A, and these results compared favourably to what was observed in tension-released models. Tension-induced HSE will contribute to analyze skin physiological functions regulated by tensional homeostasis as an alternative animal model.
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Abstract
The Hanahan and Weinberg "hallmarks of cancer" papers provide a useful structure for considering the various mechanisms driving cancer progression, and the same might be useful for wound healing. In this Review, we highlight how tissue repair and cancer share cellular and molecular processes that are regulated in a wound but misregulated in cancer. From sustained proliferative signaling and the activation of invasion and angiogenesis to the promoting role of inflammation, there are many obvious parallels through which one process can inform the other. For some hallmarks, the parallels are more obscure. We propose some new prospective hallmarks that might apply to both cancer and wound healing and discuss how wounding, as in biopsy and surgery, might positively or negatively influence cancer in the clinic.
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Affiliation(s)
- Lucy MacCarthy-Morrogh
- School of Biochemistry, Biomedical Sciences Building, University of Bristol, Bristol BS8 1TD, UK.
| | - Paul Martin
- School of Biochemistry, Biomedical Sciences Building, University of Bristol, Bristol BS8 1TD, UK.
- School of Physiology, Pharmacology and Neuroscience, Biomedical Sciences Building, University of Bristol, Bristol BS8 1TD, UK
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
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Evaluation of epithelial progenitor cells and growth factors in a preclinical model of wound healing induced by mesenchymal stromal cells. Biosci Rep 2020; 40:225798. [PMID: 32667622 PMCID: PMC7378309 DOI: 10.1042/bsr20200461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/28/2020] [Accepted: 06/08/2020] [Indexed: 01/09/2023] Open
Abstract
Background: Skin wounds continue to be a global health problem. Several cellular therapy protocols have been used to improve and accelerate skin wound healing. Here, we evaluated the effect of transplantation of mesenchymal stromal cells (MSC) on the wound re-epithelialization process and its possible relationship with the presence of epithelial progenitor cells (EPC) and the expression of growth factors. Methods: An experimental wound model was developed in C57BL/6 mice. Human MSCs seeded on collagen membranes (CM) were implanted on wounds. As controls, animals with wounds without treatment or treated with CM were established. Histological and immunohistochemical (IH) studies were performed at day 3 post-treatment to detect early skin wound changes associated with the presence of EPC expressing Lgr6 and CD34 markers and the expression of keratinocyte growth factor (KGF) and basic fibroblast growth factor (bFGF). Results: MSC transplantation enhanced skin wound re-epithelialization, as compared with controls. It was associated with an increase in Lgr6+ and CD34+ cells and the expression of KGF and bFGF in the wound bed. Conclusion: Our results show that cutaneous wound healing induced by MSC is associated with an increase in EPC and growth factors. These preclinical results support the possible clinical use of MSC to treat cutaneous wounds.
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Thelen F, Witherden DA. Get in Touch With Dendritic Epithelial T Cells! Front Immunol 2020; 11:1656. [PMID: 32849572 PMCID: PMC7403176 DOI: 10.3389/fimmu.2020.01656] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022] Open
Abstract
Innate and adaptive immune systems continuously interchange information and orchestrate their immune responses to protect the host. γδT cells play crucial roles, as they incorporate both innate and adaptive immune characteristics. Dendritic epidermal T cells (DETC) are specialized γδT cells, which are uniquely positioned to rapidly respond to skin wounds and infections. Their elongated dendrite morphology allows them to be in continuous contact with multiple neighboring keratinocytes and Langerhans cells. Cellular interactions are fundamental to the formation, activation and maintenance of immune cell functions during steady state and pathology. Recent technological advances, especially in the field of cellular imaging, have contributed greatly to the characterization of complex cellular interactions in a spatiotemporally resolved manner. In this review, we will highlight the often-underappreciated function of DETC and other γδT cells during steady state and an ongoing immune response. More specifically, we discuss how DETC-precursors are shaped in the fetal thymus during embryogenesis as well as how direct cell-cell interactions of DETC with neighboring epidermal cells shape skin homeostasis and effector functions. Furthermore, we will discuss seminal work and recent discoveries made in the γδT cell field, which have highlighted the importance of γδT cells in the skin, both in humans and mice.
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Affiliation(s)
- Flavian Thelen
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, United States
| | - Deborah A Witherden
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, United States
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Wei Z, Liu X, Ooka M, Zhang L, Song MJ, Huang R, Kleinstreuer NC, Simeonov A, Xia M, Ferrer M. Two-Dimensional Cellular and Three-Dimensional Bio-Printed Skin Models to Screen Topical-Use Compounds for Irritation Potential. Front Bioeng Biotechnol 2020; 8:109. [PMID: 32154236 PMCID: PMC7046801 DOI: 10.3389/fbioe.2020.00109] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 02/03/2020] [Indexed: 11/22/2022] Open
Abstract
Assessing skin irritation potential is critical for the safety evaluation of topical drugs and other consumer products such as cosmetics. The use of advanced cellular models, as an alternative to replace animal testing in the safety evaluation for both consumer products and ingredients, is already mandated by law in the European Union (EU) and other countries. However, there has not yet been a large-scale comparison of the effects of topical-use compounds in different cellular skin models. This study assesses the irritation potential of topical-use compounds in different cellular models of the skin that are compatible with high throughput screening (HTS) platforms. A set of 451 topical-use compounds were first tested for cytotoxic effects using two-dimensional (2D) monolayer models of primary neonatal keratinocytes and immortalized human keratinocytes. Forty-six toxic compounds identified from the initial screen with the monolayer culture systems were further tested for skin irritation potential on reconstructed human epidermis (RhE) and full thickness skin (FTS) three-dimensional (3D) tissue model constructs. Skin irritation potential of the compounds was assessed by measuring tissue viability, trans-epithelial electrical resistance (TEER), and secretion of cytokines interleukin 1 alpha (IL-1α) and interleukin 18 (IL-18). Among known irritants, high concentrations of methyl violet and methylrosaniline decreased viability, lowered TEER, and increased IL-1α secretion in both RhE and FTS models, consistent with irritant properties. However, at low concentrations, these two compounds increased IL-18 secretion without affecting levels of secreted IL-1α, and did not reduce tissue viability and TEER, in either RhE or FTS models. This result suggests that at low concentrations, methyl violet and methylrosaniline have an allergic potential without causing irritation. Using both HTS-compatible 2D cellular and 3D tissue skin models, together with irritation relevant activity endpoints, we obtained data to help assess the irritation effects of topical-use compounds and identify potential dermal hazards.
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Affiliation(s)
- Zhengxi Wei
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Xue Liu
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Masato Ooka
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Li Zhang
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Min Jae Song
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
- 3D Bioprinting Core, National Eye Institute, Bethesda, MD, United States
| | - Ruili Huang
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Nicole C. Kleinstreuer
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, United States
| | - Anton Simeonov
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Menghang Xia
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Marc Ferrer
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
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FGF8, FGF10 and FGF receptor 2 in foreskin of children with hypospadias: an analysis of immunohistochemical expression patterns and gene transcription. J Pediatr Urol 2020; 16:41.e1-41.e10. [PMID: 31718875 DOI: 10.1016/j.jpurol.2019.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/05/2019] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Fibroblast growth factors (FGFs) play a crucial role in early embryogenesis of the genital tubercle and are involved in the development of hypospadias, affecting both endo- and ectodermally derived tissues. It was hypothesized that expression of FGFs could be qualitatively or quantitatively altered in skin of children with hypospadias. OBJECTIVE The objective of the study was to investigate expression patterns and transcription levels of FGF8, FGF10, and FGF Receptor 2 (FGFR2) in patients with hypospadias compared to normal controls. PATIENTS AND METHODS Skin samples from the ventro-lateral aspect of the foreskin of 32 patients with hypospadias (17 distal and 15 proximal, mean age 25 months) and 10 normal foreskin samples (mean age 77 months) were analyzed by immunohistochemistry. Staining, localization, and distribution of positive cells in epidermis and dermis were categorized independently by two researchers. Complementary DNA (cDNA) samples prepared from messenger RNA (mRNA) isolates of the same samples were analyzed by quantitative polymerase chain reaction (qPCR), comparing expressions of FGF8, FGF10, and FGFR2 with loading controls. RESULTS Patients with hypospadias consistently showed aberrant immunohistochemical staining patterns for FGF8/FGF10/FGFR2 in epidermis and dermis compared to patients without penile malformation (p < 0.01 for all markers). qPCR displayed no difference in expression levels on mRNA level (FGFR2 p = 0.44, FGF8 p = 0.77, and FGF10 p = 0.17) comparing normal foreskin with foreskin from patients with hypospadias. Figure. DISCUSSION The results point at an impact of FGF signaling during embryological development of hypospadias on skin, as an ectodermally derived tissue. Similar to the urethral development, this might be a result of mesothelial-epithelial interactions. The differing expression patterns in immunohistochemistry are not matched by a quantitative difference in marker expression on the mRNA level, putatively caused by post-translational modifications or alterations of the downstream pathway. FGFs, particularly FGF10 and FGFR2, are critically involved in wound healing. CONCLUSIONS There are significant differences in localization and distribution of FGF8, FGF10, and FGFR2 in comparisons of normal foreskin to foreskin of patients with hypospadias, whereas there is no difference in the quantitative expression of these markers on the mRNA level. This confirms the notion that penile skin is affected as well by the embryological aberrations during the embryogenesis of hypospadias.
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Li S, Tang Q, Xu H, Huang Q, Wen Z, Liu Y, Peng C. Improved stability of KGF by conjugation with gold nanoparticles for diabetic wound therapy. Nanomedicine (Lond) 2019; 14:2909-2923. [PMID: 31791171 DOI: 10.2217/nnm-2018-0487] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aim: Diabetic wound healing is seriously interrupted, and administration of KGF for wound treatment is restricted by its inherent instability. We aim to develop an ideal way toward KGF stabilization, thus improving diabetic wound healing. Materials & methods: We conjugated KGF with gold nanoparticles (GNPs) and determined the stability and binding affinity. Biological effects of conjugates (KGF-GNPs) were evaluated in vitro and in an animal model. Results: KGF-GNPs revealed high stability under hostile circumstances because of the preserved secondary structure and possessed elevated binding affinity to KGF receptor. Moreover, application of KGF-GNPs contributed to accelerated wound recovery in diabetic rats, including re-epithelialization and contraction. Conclusion: KGF-GNPs were promising for future clinical application for diabetic wound therapy.
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Affiliation(s)
- Shuaihua Li
- Department of Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, PR China.,Department of Cosmetic & Plastic Surgery, The First People's Hospital of Chenzhou, Chenzhou 423000, Hunan, PR China
| | - Qiyu Tang
- Department of Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, PR China.,Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, PR China
| | - Hongbo Xu
- Department of General Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, PR China
| | - Qiangru Huang
- Department of Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, PR China
| | - Zi Wen
- Department of Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, PR China
| | - Yawei Liu
- Department of Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, PR China
| | - Cheng Peng
- Department of Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, Hunan, PR China
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Herbal preparations for the treatment of hair loss. Arch Dermatol Res 2019; 312:395-406. [PMID: 31680216 DOI: 10.1007/s00403-019-02003-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 06/27/2019] [Accepted: 10/16/2019] [Indexed: 02/07/2023]
Abstract
Though hair does not serve any crucial physiological function in modern humans, it plays an important role in our self-esteem. Androgenic baldness (androgenic alopecia) and circular/spot baldness (alopecia areata) are the most common forms of hair loss. Many active ingredients of synthetic origin are available for treatment; however, they have a number of limitations. Their effectiveness and safety are questionable and the amount of time needed to achieve the effect is both long and unclear. This has increased interest in finding an alternative approach against hair loss using preparations containing plants and/or their isolated active ingredients. A number of studies (mostly randomized, placebo-controlled) of plants and preparations made of plants have been performed to confirm their effectiveness in treating hair loss. The plants with the most evidence-based effect against alopecia are Curcuma aeruginosa (pink and blue ginger), Serenoa repens (palmetto), Cucurbita pepo (pumpkin), Trifolium pratense (red clover), and Panax ginseng (Chinese red ginseng). The assumed mechanism of action is predominately inhibition of 5α-reductase, with enhanced nutritional support and scalp blood circulation playing a role as well.
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36
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Huang B, Kang BG, Lim SS, Zhang XH. Melandrium firmum Extract Promotes Hair Growth by Modulating 5α-Reductase Activity and Gene Expression in C57BL/6J Mice. Ann Dermatol 2019; 31:502-510. [PMID: 33911641 PMCID: PMC7992555 DOI: 10.5021/ad.2019.31.5.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/19/2019] [Accepted: 03/09/2019] [Indexed: 11/10/2022] Open
Abstract
Background In our preliminary study, we screened for their potential to inhibit 5α-reductase, and Melandrium firmum (MF) extract showed the most potent activity as confirmed by high-performance liquid chromatography (HPLC). Objective This study aimed to investigate the effects of MF extract on 5α-reductase activity and its mechanisms of action in the prevention or treatment of androgenetic alopecia. Methods HPLC was used to measure 5α-reductase activity. The hair growth-promoting effect of MF extract in the shaved dorsal skin of C57BL/6J mice was studied for 30 days. Hair follicles were examined by histological examination. Protein and mRNA levels of growth factors involved in hair growth were determined by western blotting, and reverse transcription-polymerase chain reaction (RT-PCR) and qPCR, respectively. Cell proliferation was measured by (3-(4, 5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium) assay. Results MF extract at 0.5 mg/ml showed 43.5% inhibition of 5α-reductase. MF extract promoted hair growth by inducing anagen phase reflected by skin color, hair density, and the number and size of hair follicles. It not only reduces the expression of transforming growth factor-beta 1 (TGF-β1) and Dickkopf-1 (DKK-1), but also markedly upregulated insulin-like growth factor 1 and keratinocyte growth factor in the dorsal dermal tissue. Ursolic acid, ecdcysteron, and ergosterol peroxide were identified as active constituents by activity-guided fractionation to inhibit 5α-reductase. They decreased the gene expression of TGF-β1 and DKK-1 in human hair dermal papilla cells. Conclusion In summary, these finding indicate that MF extract might be a good drug candidate for hair growth promotion.
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Affiliation(s)
- Bo Huang
- Department of Food Science and Engineering, Jinzhou Medical University, Jinzhou, China
| | - Bueom-Goo Kang
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Korea
| | - Soon Sung Lim
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Korea
| | - Xian Hua Zhang
- Department of Food Science and Engineering, Jinzhou Medical University, Jinzhou, China
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Vasserot AP, Geyfman M, Poloso NJ. Androgenetic alopecia: combing the hair follicle signaling pathways for new therapeutic targets and more effective treatment options. Expert Opin Ther Targets 2019; 23:755-771. [PMID: 31456448 DOI: 10.1080/14728222.2019.1659779] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: In the past 30 years, only two drugs have received FDA approval for the treatment of androgenetic alopecia reflecting a lack of success in unraveling novel targets for pharmacological intervention. However, as our knowledge of hair biology improves, new signaling pathways and organogenesis processes are being uncovered which have the potential to yield more effective therapeutic modalities. Areas covered: This review focuses on potential targets for drug development to treat hair loss. The physiological processes underlying the promise of regenerative medicine to recreate new functional hair follicles in bald scalp are also examined. Expert opinion: The discovery of promising new targets may soon enable treatment options that modulate the hair cycle to preserve or extend the growth phase of the hair follicle. These new targets could also be leveraged to stimulate progenitor cells and morphogenic pathways to reactivate miniaturized follicles in bald scalp or to harness the potential of wound healing and embryogenic development as an emerging paradigm to generate new hair follicles in barren skin.
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Affiliation(s)
- Alain P Vasserot
- Allergan Plc, Research and External Scientific Innovation , Irvine , CA , USA
| | - Mikhail Geyfman
- Allergan Plc, Research and External Scientific Innovation , Irvine , CA , USA
| | - Neil J Poloso
- Allergan Plc, Research and External Scientific Innovation , Irvine , CA , USA
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Tan ST, Dosan R. Lessons From Epithelialization: The Reason Behind Moist Wound Environment. ACTA ACUST UNITED AC 2019. [DOI: 10.2174/1874372201913010034] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Wound healing consists of multiple structured mechanism and is influenced by various factors. Epithelialization is one of the major aspect in wound healing and inhibition of this mechanism will greatly impair wound healing. Epithelialization is a process where epithelial cells migrate upwards and repair the wounded area. This process is the most essential part in wound healing and occurs in proliferative phase of wound healing. Skin stem cells which reside in several locations of epidermis contribute in the re-epithelialization when the skin is damaged. Epithelialization process is activated by inflammatory signal and then keratinocyte migrate, differentiate and stratify to close the defect in the skin. Several theories of epithelialization model in wound healing have been proposed for decades and have shown the mechanism of epidermal cell migration during epithelialization even though the exact mechanism is still controversial. This process is known to be influenced by the wound environment where moist wound environment is preferred rather than dry wound environment. In dry wound environment, epithelialization is known to be inhibited because of scab or crust which is formed from dehydrated and dead cells. Moist wound environment enhances the epithelialization process by easier migration of epidermal cells, faster epithelialization, and prolonged presence of proteinases and growth factors. This article focuses on the epithelialization process in wound healing, epithelialization models, effects of wound environment on epithelialization and epithelialization as the basis for products that enhance wound healing.
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Zhang Y, Chen S, Qu F, Su G, Zhao Y. In vivo and in vitro evaluation of hair growth potential of Cacumen Platycladi, and GC-MS analysis of the active constituents of volatile oil. JOURNAL OF ETHNOPHARMACOLOGY 2019; 238:111835. [PMID: 30917929 DOI: 10.1016/j.jep.2019.111835] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 03/08/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cacumen Platycladi (CP) is the leaves of Platycladus orientalis which has been traditionally used to resist alopecia and promote hair growth. However, no study has been reported on the effects of CP on proliferation of dermal papilla cells (DPCs). And there is also no complete and systematic research on hair re-growth efficacies of CP. AIM OF THE STUDY To evaluate the hair-growth activity of their extracts on the proliferation of DPCs and the promotion of hair reproduction in C57BL/6 mice. MATERIALS AND METHODS For the DPCs, different extract fractions of CP were investigated. The hair growth effect of CP volatile oil on C57BL/6 mice was evaluated for 28 days. Meanwhile, the chemical constituents of the volatile oil from Cacumen Platycladi were isolated and identified by GC-MS. RESULTS The study showed that the extracts of CP could promote the proliferation of DPCs, and the activity of volatile oil was the best. CP volatile oil (100 μg/mL) resulted in stronger proliferation of DPCs by 239.8% compared with control (100%) and minoxidil (130.3%) during the 48 h incubation. And no obvious cytotoxic activity was observed when volatile oil was dosed up to 500 μg/mL. At different growth stages, mice treated with 0.2 g/kg CP volatile oil required shorter time than 2% minoxidil. Hair length for 0.2 g/kg CP volatile oil treated group was longer than those of minoxidil and control. Further histological observation indicated that CP volatile oil could prolonged the anagen phase of hair follicles. Moreover, thirty four components, with contents of 81.9% of the total volatile oils, were separaed and identified. CONCLUSION The CP volatile oil may have the potential therapeutic agent for the treatment of alopecia.
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Affiliation(s)
- Yan Zhang
- Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Shanshan Chen
- Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Fanzhi Qu
- Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Guangyue Su
- Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China; Key Laboratory of Structure-based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Yuqing Zhao
- Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China; Key Laboratory of Structure-based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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Heimbuck AM, Priddy-Arrington TR, Padgett ML, Llamas CB, Barnett HH, Bunnell BA, Caldorera-Moore ME. Development of Responsive Chitosan–Genipin Hydrogels for the Treatment of Wounds. ACS APPLIED BIO MATERIALS 2019; 2:2879-2888. [DOI: 10.1021/acsabm.9b00266] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Abitha M. Heimbuck
- Department of Biomedical Engineering, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Tyler R. Priddy-Arrington
- Department of Biomedical Engineering, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Madison L. Padgett
- Department of Biomedical Engineering, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Claire B. Llamas
- Department of Pharmacology, Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana 70118, United States
| | - Haley H. Barnett
- School of Biological Sciences, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Bruce A. Bunnell
- Department of Pharmacology, Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana 70118, United States
| | - Mary E. Caldorera-Moore
- Department of Biomedical Engineering, Louisiana Tech University, Ruston, Louisiana 71272, United States
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Veith AP, Henderson K, Spencer A, Sligar AD, Baker AB. Therapeutic strategies for enhancing angiogenesis in wound healing. Adv Drug Deliv Rev 2019; 146:97-125. [PMID: 30267742 DOI: 10.1016/j.addr.2018.09.010] [Citation(s) in RCA: 427] [Impact Index Per Article: 85.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 09/15/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
Abstract
The enhancement of wound healing has been a goal of medical practitioners for thousands of years. The development of chronic, non-healing wounds is a persistent medical problem that drives patient morbidity and increases healthcare costs. A key aspect of many non-healing wounds is the reduced presence of vessel growth through the process of angiogenesis. This review surveys the creation of new treatments for healing cutaneous wounds through therapeutic angiogenesis. In particular, we discuss the challenges and advancement that have been made in delivering biologic, pharmaceutical and cell-based therapies as enhancers of wound vascularity and healing.
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Wei LG, Chang HI, Wang Y, Hsu SH, Dai LG, Fu KY, Dai NT. A gelatin/collagen/polycaprolactone scaffold for skin regeneration. PeerJ 2019; 7:e6358. [PMID: 30723629 PMCID: PMC6361006 DOI: 10.7717/peerj.6358] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 12/28/2018] [Indexed: 01/22/2023] Open
Abstract
Background A tissue-engineered skin substitute, based on gelatin (“G”), collagen (“C”), and poly(ε-caprolactone) (PCL; “P”), was developed. Method G/C/P biocomposites were fabricated by impregnation of lyophilized gelatin/collagen (GC) mats with PCL solutions, followed by solvent evaporation. Two different GC:PCL ratios (1:8 and 1:20) were used. Results Differential scanning calorimetry revealed that all G/C/P biocomposites had characteristic melting point of PCL at around 60 °C. Scanning electron microscopy showed that all biocomposites had similar fibrous structures. Good cytocompatibility was present in all G/C/P biocomposites when incubated with primary human epidermal keratinocytes (PHEK), human dermal fibroblasts (PHDF) and human adipose-derived stem cells (ASCs) in vitro. All G/C/P biocomposites exhibited similar cell growth and mechanical characteristics in comparison with C/P biocomposites. G/C/P biocomposites with a lower collagen content showed better cell proliferation than those with a higher collagen content in vitro. Due to reasonable mechanical strength and biocompatibility in vitro, G/C/P with a lower content of collagen and a higher content of PCL (GCLPH) was selected for animal wound healing studies. According to our data, a significant promotion in wound healing and skin regeneration could be observed in GCLPH seeded with adipose-derived stem cells by Gomori’s trichrome staining. Conclusion This study may provide an effective and low-cost wound dressings to assist skin regeneration for clinical use.
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Affiliation(s)
- Lin-Gwei Wei
- Division of Plastic and Reconstructive Surgery, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan, R.O.C
| | - Hsin-I Chang
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, R.O.C
| | - Yiwei Wang
- Burns Research Group, ANZAC Research Institute, Concord Hospital, University of Sydney, Concord West, NSW, Australia
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan, R.O.C
| | - Lien-Guo Dai
- Department of Orthopedics, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Keng-Yen Fu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C
| | - Niann-Tzyy Dai
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C
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Manzano-Núñez F, Arámbul-Anthony MJ, Galán Albiñana A, Leal Tassias A, Acosta Umanzor C, Borreda Gascó I, Herrera A, Forteza Vila J, Burks DJ, Noon LA. Insulin resistance disrupts epithelial repair and niche-progenitor Fgf signaling during chronic liver injury. PLoS Biol 2019; 17:e2006972. [PMID: 30695023 PMCID: PMC6368328 DOI: 10.1371/journal.pbio.2006972] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 02/08/2019] [Accepted: 01/08/2019] [Indexed: 02/07/2023] Open
Abstract
Insulin provides important information to tissues about feeding behavior and energy status. Defective insulin signaling is associated with ageing, tissue dysfunction, and impaired wound healing. In the liver, insulin resistance leads to chronic damage and fibrosis, but it is unclear how tissue-repair mechanisms integrate insulin signals to coordinate an appropriate injury response or how they are affected by insulin resistance. In this study, we demonstrate that insulin resistance impairs local cellular crosstalk between the fibrotic stroma and bipotent adult liver progenitor cells (LPCs), whose paracrine interactions promote epithelial repair and tissue remodeling. Using insulin-resistant mice deficient for insulin receptor substrate 2 (Irs2), we highlight dramatic impairment of proregenerative fibroblast growth factor 7 (Fgf7) signaling between stromal niche cells and LPCs during chronic injury. We provide a detailed account of the role played by IRS2 in promoting Fgf7 ligand and receptor (Fgfr2-IIIb) expression by the two cell compartments, and we describe an insulin/IRS2-dependent feed-forward loop capable of sustaining hepatic re-epithelialization by driving FGFR2-IIIb expression. Finally, we shed light on the regulation of IRS2 and FGF7 within the fibrotic stroma and show—using a human coculture system—that IRS2 silencing shifts the equilibrium away from paracrine epithelial repair in favor of fibrogenesis. Hence, we offer a compelling insight into the contribution of insulin resistance to the pathogenesis of chronic liver disease and propose IRS2 as a positive regulator of communication between cell types and the transition between phases of stromal to epithelial repair. “Insulin resistance” is a chronic state of reduced sensitivity to the effects of circulating insulin. It is one of the hallmarks of metabolic disease and a consequence of ageing, but insulin resistance is also observed in otherwise healthy individuals after severe trauma/hemorrhage/sepsis, suggesting that it plays a physiological role in modulating the response to injury. Defective insulin signals are linked to impaired wound healing, yet it remains unclear how systemic changes affect locally the cells that coordinate tissue repair. In this study, we used the liver to assess how insulin resistance impacts the injury response in mice. We provide proof of concept that insulin signals are locally integrated by the fibrotic microenvironment surrounding the adult liver stem cells during chronic injury, resulting in the increased expression of epithelial repair signals. Insulin also simultaneously primes stem cells to respond to these stromal growth factors, leading to an increased participation in epithelial repair. Insulin resistance disrupts this local paracrine circuit, resulting in a blunted epithelial response to chronic injury that exacerbates tissue damage. Our model highlights a potential role for insulin in switching the hepatic injury response from a stromal repair process to an epithelial repair process. To our knowledge, our data provide a new perspective from which to reassess how insulin resistance influences fibrosis, wound healing, and tissue remodeling during injury.
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Affiliation(s)
- Fátima Manzano-Núñez
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - María José Arámbul-Anthony
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | | | | | - Carlos Acosta Umanzor
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Irene Borreda Gascó
- Instituto Valenciano de Patología, Universidad Católica de Valencia San Vicente Màrtir, Valencia, Spain
| | | | - Jerónimo Forteza Vila
- Centro de Investigación Príncipe Felipe, Valencia, Spain
- Instituto Valenciano de Patología, Universidad Católica de Valencia San Vicente Màrtir, Valencia, Spain
| | - Deborah J. Burks
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Luke A. Noon
- CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Madrid, Spain
- Centro de Investigación Príncipe Felipe, Valencia, Spain
- * E-mail:
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Rodrigues M, Kosaric N, Bonham CA, Gurtner GC. Wound Healing: A Cellular Perspective. Physiol Rev 2019; 99:665-706. [PMID: 30475656 PMCID: PMC6442927 DOI: 10.1152/physrev.00067.2017] [Citation(s) in RCA: 1238] [Impact Index Per Article: 247.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 06/25/2018] [Accepted: 06/28/2018] [Indexed: 02/08/2023] Open
Abstract
Wound healing is one of the most complex processes in the human body. It involves the spatial and temporal synchronization of a variety of cell types with distinct roles in the phases of hemostasis, inflammation, growth, re-epithelialization, and remodeling. With the evolution of single cell technologies, it has been possible to uncover phenotypic and functional heterogeneity within several of these cell types. There have also been discoveries of rare, stem cell subsets within the skin, which are unipotent in the uninjured state, but become multipotent following skin injury. Unraveling the roles of each of these cell types and their interactions with each other is important in understanding the mechanisms of normal wound closure. Changes in the microenvironment including alterations in mechanical forces, oxygen levels, chemokines, extracellular matrix and growth factor synthesis directly impact cellular recruitment and activation, leading to impaired states of wound healing. Single cell technologies can be used to decipher these cellular alterations in diseased states such as in chronic wounds and hypertrophic scarring so that effective therapeutic solutions for healing wounds can be developed.
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Affiliation(s)
- Melanie Rodrigues
- Department of Surgery, Stanford University School of Medicine , Stanford, California
| | - Nina Kosaric
- Department of Surgery, Stanford University School of Medicine , Stanford, California
| | - Clark A Bonham
- Department of Surgery, Stanford University School of Medicine , Stanford, California
| | - Geoffrey C Gurtner
- Department of Surgery, Stanford University School of Medicine , Stanford, California
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Clayton NS, Grose RP. Emerging Roles of Fibroblast Growth Factor 10 in Cancer. Front Genet 2018; 9:499. [PMID: 30405704 PMCID: PMC6207577 DOI: 10.3389/fgene.2018.00499] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/05/2018] [Indexed: 12/21/2022] Open
Abstract
Whilst cross-talk between stroma and epithelium is critical for tissue development and homeostasis, aberrant paracrine stimulation can result in neoplastic transformation. Chronic stimulation of epithelial cells with paracrine Fibroblast Growth Factor 10 (FGF10) has been implicated in multiple cancers, including breast, prostate and pancreatic ductal adenocarcinoma. Here, we examine the mechanisms underlying FGF10-induced tumourigenesis and explore novel approaches to target FGF10 signaling in cancer.
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Affiliation(s)
- Natasha S Clayton
- Centre for Tumour Biology, Barts Cancer Institute, CRUK Centre of Excellence, Queen Mary University of London, London, United Kingdom
| | - Richard P Grose
- Centre for Tumour Biology, Barts Cancer Institute, CRUK Centre of Excellence, Queen Mary University of London, London, United Kingdom
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Andasari V, Lü D, Swat M, Feng S, Spill F, Chen L, Luo X, Zaman M, Long M. Computational model of wound healing: EGF secreted by fibroblasts promotes delayed re-epithelialization of epithelial keratinocytes. Integr Biol (Camb) 2018; 10:605-634. [PMID: 30206629 PMCID: PMC6571173 DOI: 10.1039/c8ib00048d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
It is widely agreed that keratinocyte migration plays a crucial role in wound re-epithelialization. Defects in this function contribute to wound reoccurrence causing significant clinical problems. Several in vitro studies have shown that the speed of migrating keratinocytes can be regulated by epidermal growth factor (EGF) which affects keratinocyte's integrin expression. The relationship between integrin expression (through cell-matrix adhesion) stimulated by EGF and keratinocyte migration speed is not linear since increased adhesion, due to increased integrin expression, has been experimentally shown to slow down cell migration due to the biphasic dependence of cell speed on adhesion. In our previous work we showed that keratinocytes that were co-cultured with EGF-enhanced fibroblasts formed an asymmetric migration pattern, where, the cumulative distances of keratinocytes migrating toward fibroblasts were smaller than those migrating away from fibroblasts. This asymmetric pattern is thought to be provoked by high EGF concentration secreted by fibroblasts. The EGF stimulates the expression of integrin receptors on the surface of keratinocytes migrating toward fibroblasts via paracrine signaling. In this paper, we present a computational model of keratinocyte migration that is controlled by EGF secreted by fibroblasts using the Cellular Potts Model (CPM). Our computational simulation results confirm the asymmetric pattern observed in experiments. These results provide a deeper insight into our understanding of the complexity of keratinocyte migration in the presence of growth factor gradients and may explain re-epithelialization failure in impaired wound healing.
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Affiliation(s)
- Vivi Andasari
- Boston University, Department of Biomedical Engineering, 44 Cummington Mall, Boston, MA 02215, USA.
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Tomic-Canic M, Wong LL, Smola H. The epithelialisation phase in wound healing: options to enhance wound closure. J Wound Care 2018; 27:646-658. [DOI: 10.12968/jowc.2018.27.10.646] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Majana Tomic-Canic
- Professor and Vice Chair of Research; Director, Wound Healing and Regenerative Medicine Research Program; Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami, Miller School of Medicine, Miami, Florida, US
| | - Lulu L. Wong
- MD Candidate; Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami, Miller School of Medicine, Miami, Florida, US
| | - Hans Smola
- Professor of Dermatology, Medical Director, PAUL HARTMANN AG, Heidenheim and Department of Dermatology, University of Cologne, Cologne, Germany
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Topical Application of Keratinocyte Growth Factor Conjugated Gold Nanoparticles Accelerate Wound Healing. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1619-1628. [DOI: 10.1016/j.nano.2018.04.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 04/02/2018] [Accepted: 04/05/2018] [Indexed: 12/19/2022]
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Sundaram GM, Quah S, Sampath P. Cancer: the dark side of wound healing. FEBS J 2018; 285:4516-4534. [PMID: 29905002 DOI: 10.1111/febs.14586] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/17/2018] [Accepted: 06/13/2018] [Indexed: 12/19/2022]
Abstract
Complex multicellular organisms have evolved sophisticated mechanisms to rapidly resolve epithelial injuries. Epithelial integrity is critical to maintaining internal homeostasis. An epithelial breach represents the potential for pathogen ingress and fluid loss, both of which may have severe consequences if not limited. The mammalian wound healing response involves a finely tuned, self-limiting series of cellular and molecular events orchestrated by the transient activation of specific signalling pathways. Accurate regulation of these events is essential; failure to initiate key steps at the right time delays healing and leads to chronic wounds, while aberrant initiation of wound healing processes may produce cell behaviours that promote cancer progression. In this review, we discuss how wound healing pathways co-opted in cancer lose their stringent regulation and become compromised in their reversibility. We hypothesize on how the commandeering of wound healing 'master regulators' is involved in this process, and also highlight the implications of these findings in the treatment of both chronic wounds and cancer.
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Affiliation(s)
- Gopinath M Sundaram
- Institute of Medical Biology, Agency for Science Technology & Research (A*STAR), Singapore City, Singapore
| | - Shan Quah
- Institute of Medical Biology, Agency for Science Technology & Research (A*STAR), Singapore City, Singapore
| | - Prabha Sampath
- Institute of Medical Biology, Agency for Science Technology & Research (A*STAR), Singapore City, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore City, Singapore
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Amini-Nik S, Yousuf Y, Jeschke MG. Scar management in burn injuries using drug delivery and molecular signaling: Current treatments and future directions. Adv Drug Deliv Rev 2018; 123:135-154. [PMID: 28757325 PMCID: PMC5742037 DOI: 10.1016/j.addr.2017.07.017] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/14/2017] [Accepted: 07/20/2017] [Indexed: 12/14/2022]
Abstract
In recent decades, there have been tremendous improvements in burn care that have allowed patients to survive severe burn injuries that were once fatal. However, a major limitation of burn care currently is the development of hypertrophic scars in approximately 70% of patients. This significantly decreases the quality of life for patients due to the physical and psychosocial symptoms associated with scarring. Current approaches to manage scarring include surgical techniques and non-surgical methods such as laser therapy, steroid injections, and compression therapy. These treatments are limited in their effectiveness and regularly fail to manage symptoms. As a result, the development of novel treatments that aim to improve outcomes and quality of life is imperative. Drug delivery that targets the molecular cascades of wound healing to attenuate or prevent hypertrophic scarring is a promising approach that has therapeutic potential. In this review, we discuss current treatments for scar management after burn injury, and how drug delivery targeting molecular signaling can lead to new therapeutic strategies.
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Affiliation(s)
- Saeid Amini-Nik
- Sunnybrook Research Institute, Toronto, Canada; Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada; Department of Surgery, Division of Plastic Surgery, University of Toronto, Toronto, Canada.
| | - Yusef Yousuf
- Institute of Medical Science, University of Toronto, Toronto, Canada; Sunnybrook Research Institute, Toronto, Canada
| | - Marc G Jeschke
- Institute of Medical Science, University of Toronto, Toronto, Canada; Sunnybrook Research Institute, Toronto, Canada; Department of Surgery, Division of Plastic Surgery, University of Toronto, Toronto, Canada; Department of Immunology, University of Toronto, Toronto, Canada; Ross-Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, Canada.
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