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Phuphanitcharoenkun S, Louis F, Sowa Y, Matsusaki M, Palaga T. Improving stability of human three dimensional skin equivalents using plasma surface treatment. Biotechnol Bioeng 2024; 121:1950-1960. [PMID: 38470332 DOI: 10.1002/bit.28690] [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: 10/21/2023] [Revised: 01/10/2024] [Accepted: 02/19/2024] [Indexed: 03/13/2024]
Abstract
In developing three-dimensional (3D) human skin equivalents (HSEs), preventing dermis and epidermis layer distortion due to the contraction of hydrogels by fibroblasts is a challenging issue. Previously, a fabrication method of HSEs was tested using a modified solid scaffold or a hydrogel matrix in combination with the natural polymer coated onto the tissue culture surface, but the obtained HSEs exhibited skin layer contraction and loss of the skin integrity and barrier functions. In this study, we investigated the method of HSE fabrication that enhances the stability of the skin model by using surface plasma treatment. The results showed that plasma treatment of the tissue culture surface prevented dermal layer shrinkage of HSEs, in contrast to the HSE fabrication using fibronectin coating. The HSEs from plasma-treated surface showed significantly higher transepithelial electrical resistance compared to the fibronectin-coated model. They also expressed markers of epidermal differentiation (keratin 10, keratin 14 and loricrin), epidermal tight junctions (claudin 1 and zonula occludens-1), and extracellular matrix proteins (collagen IV), and exhibited morphological characteristics of the primary human skins. Taken together, the use of plasma surface treatment significantly improves the stability of 3D HSEs with well-defined dermis and epidermis layers and enhanced skin integrity and the barrier functions.
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Affiliation(s)
- Suphanun Phuphanitcharoenkun
- Graduate Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University, Bangkok, Thailand
| | - Fiona Louis
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Yoshihiro Sowa
- Department of Plastic and Reconstructive Surgery, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department of Plastic Surgery, Jichi Medical University, Tochigi, Japan
| | - Michiya Matsusaki
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Tanapat Palaga
- Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University, Bangkok, Thailand
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
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Asad MM, Abdelhafez RS, Barham R, Abdaljaleel M, Alkurdi B, Al-Hadidi S, Zalloum S, Ismail MM, Buqain R, Jafar H, Ababneh NA. Three-dimensional cultures of gingival fibroblasts on fibrin-based scaffolds for gingival augmentation: A proof-of-concept study. Arch Oral Biol 2023; 154:105754. [PMID: 37413831 DOI: 10.1016/j.archoralbio.2023.105754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 06/12/2023] [Accepted: 06/18/2023] [Indexed: 07/08/2023]
Abstract
OBJECTIVE Gingival tissue regeneration is associated with several challenges. Tissue engineering regenerates the different components of the tissues, providing three major elements: living cells, appropriate scaffolds, and tissue-inducing substances. This study aimed to regenerate the gingival connective tissue in vitro, using human gingival fibroblasts cultured in three-dimensional fibrin gel scaffolds. DESIGN Human gingival fibroblasts were seeded in a novel three-dimensional fibrin gel scaffold and maintained in two media types: platelet lysate media (control) and collagen-stimulating media (test). Cellular viability and proliferation were assessed, and the production of collagen and other extracellular matrix components in these constructs was investigated and compared. RESULTS Human gingival fibroblasts cultured in three-dimensional cultures were metabolically active and proliferated in both media. Furthermore, histologic sections, scanning electron microscopy, and quantitative polymerase chain reaction confirmed the production of higher levels of collagen and other extracellular matrix fibers in three-dimensional constructs cultured in collagen-stimulating media. CONCLUSIONS Culturing human gingival fibroblasts in a novel three-dimensional fibrin gel scaffold containing collagen-stimulating media resulted in a tissue-equivalent construct that mimics human gingival connective tissue. The impact of these results should be considered for further investigations, which may help to develop a compatible scaffold for gingival soft tissue regeneration and treatment of mucogingival deformities.
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Affiliation(s)
- Mahabba M Asad
- Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Reem S Abdelhafez
- Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.
| | - Raghda Barham
- Cell Therapy Center, the University of Jordan, Amman, Jordan
| | - Maram Abdaljaleel
- Department of Pathology, Microbiology, and Forensic Medicine, Faculty of Medicine, the University of Jordan and Jordan University Hospital, Amman, Jordan
| | - Ban Alkurdi
- Cell Therapy Center, the University of Jordan, Amman, Jordan
| | - Sabal Al-Hadidi
- Cell Therapy Center, the University of Jordan, Amman, Jordan
| | - Suzan Zalloum
- Cell Therapy Center, the University of Jordan, Amman, Jordan
| | | | - Rula Buqain
- Cell Therapy Center, the University of Jordan, Amman, Jordan
| | - Hanan Jafar
- Department of Anatomy and Histology, School of Medicine, The University of Jordan, Amman, Jordan
| | - Nidaa A Ababneh
- Cell Therapy Center, the University of Jordan, Amman, Jordan.
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García M, Bonafont J, Martínez-Palacios J, Xu R, Turchiano G, Svensson S, Thrasher AJ, Larcher F, Del Rio M, Hernández-Alcoceba R, Garín MI, Mencía Á, Murillas R. Preclinical model for phenotypic correction of dystrophic epidermolysis bullosa by in vivo CRISPR-Cas9 delivery using adenoviral vectors. Mol Ther Methods Clin Dev 2022; 27:96-108. [PMID: 36212909 PMCID: PMC9531050 DOI: 10.1016/j.omtm.2022.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 09/12/2022] [Indexed: 11/20/2022]
Abstract
Recessive dystrophic epidermolysis bullosa, a devastating skin fragility disease characterized by recurrent skin blistering, scarring, and a high risk of developing squamous cell carcinoma is caused by mutations in COL7A1, the gene encoding type VII collagen, which is the major component of the anchoring fibrils that bind the dermis and epidermis. Ex vivo correction of COL7A1 by gene editing in patients' cells has been achieved before. However, in vivo editing approaches are necessary to address the direct treatment of the blistering lesions characteristic of this disease. We have now generated adenoviral vectors for CRISPR-Cas9 delivery to remove exon 80 of COL7A1, which contains a highly prevalent frameshift mutation in Spanish patients. For in vivo testing, a humanized skin mouse model was used. Efficient viral transduction of skin was observed after excisional wounds generated with a surgical punch on regenerated patient skin grafts were filled with the adenoviral vectors embedded in a fibrin gel. Type VII collagen deposition in the basement membrane zone of the wounded areas treated with the vectors correlated with restoration of dermal-epidermal adhesion, demonstrating that recessive dystrophic epidermolysis bullosa (RDEB) patient skin lesions can be directly treated by CRISPR-Cas9 delivery in vivo.
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Affiliation(s)
- Marta García
- Department of Biomedical Engineering, Carlos III University (UC3M), Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Madrid, Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Jose Bonafont
- Molecular and Cellular Immunology Unit, UCL Great Ormond Street Institute of Child Health, University College London, London, UK
- Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Jesús Martínez-Palacios
- Unidad de Innovación Biomédica, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain
| | - Rudan Xu
- Department of Biomedical Engineering, Carlos III University (UC3M), Madrid, Spain
| | - Giandomenico Turchiano
- Infection, Immunity and Inflammation Research and Teaching Department, Zayed Centre for Research into Rare Disease in Children, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Stina Svensson
- Infection, Immunity and Inflammation Research and Teaching Department, Zayed Centre for Research into Rare Disease in Children, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Adrian J. Thrasher
- Infection, Immunity and Inflammation Research and Teaching Department, Zayed Centre for Research into Rare Disease in Children, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Fernando Larcher
- Unidad de Innovación Biomédica, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Madrid, Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Marcela Del Rio
- Department of Biomedical Engineering, Carlos III University (UC3M), Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Madrid, Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Rubén Hernández-Alcoceba
- Universidad de Navarra, CIMA, Programa de Terapia Génica y Regulación de la Expresión Génica, Pamplona, Spain
| | - Marina I. Garín
- Unidad de Innovación Biomédica, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Madrid, Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Ángeles Mencía
- Unidad de Innovación Biomédica, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Madrid, Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Rodolfo Murillas
- Unidad de Innovación Biomédica, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Madrid, Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
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Ordiales H, Vázquez-López F, Pevida M, Vázquez-Losada B, Vázquez F, Quirós L, Martín C. La unión de Candida albicans y Malassezia spp. a células de piel promueve cambios de expresión en los genes responsables de la síntesis de las cadenas de heparán y condroitín sulfato. ACTAS DERMO-SIFILIOGRAFICAS 2022; 113:712-716. [DOI: 10.1016/j.ad.2021.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 08/06/2021] [Accepted: 11/01/2021] [Indexed: 10/18/2022] Open
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Ordiales H, Vázquez-López F, Pevida M, Vázquez-Losada B, Vázquez F, Quirós L, Martín C. [Translated article] Adherence of Candida albicans and Malassezia Species to Skin Cells Induces Changes in the Expression of Genes Responsible for Heparan and Chondroitin Sulfate Chain Synthesis. ACTAS DERMO-SIFILIOGRAFICAS 2022. [DOI: 10.1016/j.ad.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Chacón-Solano E, León C, Carretero M, García M, Sánchez-Domínguez R, Quero F, Méndez-Jiménez E, Bonafont J, Ruiz-Mezcua B, Escámez MJ, Larcher F, Del Río M. Mechanistic interrogation of mutation-independent disease modulators of RDEB identifies the small leucine-rich proteoglycan PRELP as a TGF-β antagonist and inhibitor of fibrosis. Matrix Biol 2022; 111:189-206. [PMID: 35779740 DOI: 10.1016/j.matbio.2022.06.007] [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: 09/30/2021] [Revised: 06/17/2022] [Accepted: 06/27/2022] [Indexed: 11/29/2022]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a genetic extracellular matrix disease caused by deficiency in type VII collagen (Col VII). The disease manifests with devastating mucocutaneous fragility leading to progressive fibrosis and metastatic squamous cell carcinomas. Although collagen VII abundance is considered the main predictor of symptom course, previous studies have revealed the existence of mutation-independent mechanisms that control disease progression. Here, to investigate and validate new molecular modifiers of wound healing and fibrosis in a natural human setting, and toward development of disease-modulating treatment of RDEB, we performed gene expression profiling of primary fibroblast from RDEB siblings with marked phenotypic variations, despite having equal COL7A1 genotype. Gene enrichment analysis suggested that severe RDEB was associated with enhanced response to TGF-β stimulus, oxidoreductase activity, and cell contraction. Consistently, we found an increased response to TGF-β, higher levels of basal and induced reactive oxygen species (ROS), and greater contractile ability in collagen lattices in RDEB fibroblasts (RDEBFs) from donors with severe RDEB vs mild RDEB. Treatment with antioxidants allowed a reduction of the pro-fibrotic and contractile phenotype. Importantly, our analyses revealed higher expression and deposition in skin of the relatively uncharacterized small leucine-rich extracellular proteoglycan PRELP/prolargin associated with milder RDEB manifestations. Mechanistic investigations showed that PRELP effectively attenuated fibroblasts' response to TGF-β1 stimulus and cell contractile capacity. Moreover, PRELP overexpression in RDEBFs enhanced RDEB keratinocyte attachment to fibroblast-derived extracellular matrix in the absence of Col VII. Our results highlight the clinical relevance of pro-oxidant status and hyper-responsiveness to TGF-β in RDEB severity and progression. Of note, our study also reveals PRELP as a novel and natural TGF-β antagonist with a likely dermo-epidermal pro-adhesive capacity.
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Affiliation(s)
- E Chacón-Solano
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain.
| | - C León
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain
| | - M Carretero
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - M García
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - R Sánchez-Domínguez
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain
| | - F Quero
- División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - E Méndez-Jiménez
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - J Bonafont
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - B Ruiz-Mezcua
- Departamento de Informática, Universidad Carlos III de Madrid (UC3M); Madrid, Spain
| | - M J Escámez
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - F Larcher
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain.
| | - M Del Río
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain.
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Polymerizable Skin Hydrogel for Full Thickness Wound Healing. Int J Mol Sci 2022; 23:ijms23094837. [PMID: 35563225 PMCID: PMC9100232 DOI: 10.3390/ijms23094837] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 12/11/2022] Open
Abstract
The skin is the largest organ in the human body, comprising the main barrier against the environment. When the skin loses its integrity, it is critical to replace it to prevent water loss and the proliferation of opportunistic infections. For more than 40 years, tissue-engineered skin grafts have been based on the in vitro culture of keratinocytes over different scaffolds, requiring between 3 to 4 weeks of tissue culture before being used clinically. In this study, we describe the development of a polymerizable skin hydrogel consisting of keratinocytes and fibroblast entrapped within a fibrin scaffold. We histologically characterized the construct and evaluated its use on an in vivo wound healing model of skin damage. Our results indicate that the proposed methodology can be used to effectively regenerate skin wounds, avoiding the secondary in vitro culture steps and thus, shortening the time needed until transplantation in comparison with other bilayer skin models. This is achievable due to the instant polymerization of the keratinocytes and fibroblast combination that allows a direct application on the wound. We suggest that the polymerizable skin hydrogel is an inexpensive, easy and rapid treatment that could be transferred into clinical practice in order to improve the treatment of skin wounds.
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Pontiggia L, Van Hengel IAJ, Klar A, Rütsche D, Nanni M, Scheidegger A, Figi S, Reichmann E, Moehrlen U, Biedermann T. Bioprinting and plastic compression of large pigmented and vascularized human dermo-epidermal skin substitutes by means of a new robotic platform. J Tissue Eng 2022; 13:20417314221088513. [PMID: 35495096 PMCID: PMC9044789 DOI: 10.1177/20417314221088513] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Indexed: 12/19/2022] Open
Abstract
Extensive availability of engineered autologous dermo-epidermal skin substitutes (DESS) with functional and structural properties of normal human skin represents a goal for the treatment of large skin defects such as severe burns. Recently, a clinical phase I trial with this type of DESS was successfully completed, which included patients own keratinocytes and fibroblasts. Yet, two important features of natural skin were missing: pigmentation and vascularization. The first has important physiological and psychological implications for the patient, the second impacts survival and quality of the graft. Additionally, accurate reproduction of large amounts of patient’s skin in an automated way is essential for upscaling DESS production. Therefore, in the present study, we implemented a new robotic unit (called SkinFactory) for 3D bioprinting of pigmented and pre-vascularized DESS using normal human skin derived fibroblasts, blood- and lymphatic endothelial cells, keratinocytes, and melanocytes. We show the feasibility of our approach by demonstrating the viability of all the cells after printing in vitro, the integrity of the reconstituted capillary network in vivo after transplantation to immunodeficient rats and the anastomosis to the vascular plexus of the host. Our work has to be considered as a proof of concept in view of the implementation of an extended platform, which fully automatize the process of skin substitution: this would be a considerable improvement of the treatment of burn victims and patients with severe skin lesions based on patients own skin derived cells.
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Affiliation(s)
- Luca Pontiggia
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Ingmar AJ Van Hengel
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Agnes Klar
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Dominic Rütsche
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Monica Nanni
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
- Institute for Mechanical Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | | | | | - Ernst Reichmann
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Ueli Moehrlen
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Zurich Center for Fetal Diagnosis and Treatment, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
- University of Zurich, Zurich, Switzerland
| | - Thomas Biedermann
- Tissue Biology Research Unit, Department of Pediatric Surgery, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
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Improvement of Cell Culture Methods for the Successful Generation of Human Keratinocyte Primary Cell Cultures Using EGF-Loaded Nanostructured Lipid Carriers. Biomedicines 2021; 9:biomedicines9111634. [PMID: 34829863 PMCID: PMC8615600 DOI: 10.3390/biomedicines9111634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/29/2021] [Accepted: 11/04/2021] [Indexed: 12/03/2022] Open
Abstract
Human skin keratinocyte primary cultures can be established from skin biopsies with culture media containing epithelial growth factor (EGF). Although current methods are efficient, optimization is required to accelerate the procedure and obtain these cultures in less time. In the present study, we evaluated the effect of novel formulations based on EGF-loaded nanostructured lipid carriers (NLC). First, biosafety of NLC containing recombinant human EGF (NLC-rhEGF) was verified in immortalized skin keratinocytes and cornea epithelial cells, and in two epithelial cancer cell lines, by quantifying free DNA released to the culture medium. Then we established primary cell cultures of human skin keratinocytes with basal culture media (BM) and BM supplemented with NLC-rhEGF, liquid EGF (L-rhEGF), or NLC alone (NLC-blank). The results showed that cells isolated by enzymatic digestion and cultured with or without a feeder layer had a similar growth rate regardless of the medium used. However, the explant technique showed higher efficiency when NLC-rhEGF culture medium was used, compared to BM, L-rhEGF, or NLC-blank. Gene expression analysis showed that NLC-rhEGF was able to increase EGFR gene expression, along with that of other genes related to cytokeratins, cell–cell junctions, and keratinocyte maturation and differentiation. In summary, these results support the use of NLC-rhEGF to improve the efficiency of explant-based methods in the efficient generation of human keratinocyte primary cell cultures for tissue engineering use.
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Linares-Gonzalez L, Rodenas-Herranz T, Campos F, Ruiz-Villaverde R, Carriel V. Basic Quality Controls Used in Skin Tissue Engineering. Life (Basel) 2021; 11:1033. [PMID: 34685402 PMCID: PMC8541591 DOI: 10.3390/life11101033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/25/2021] [Accepted: 09/25/2021] [Indexed: 12/15/2022] Open
Abstract
Reconstruction of skin defects is often a challenging effort due to the currently limited reconstructive options. In this sense, tissue engineering has emerged as a possible alternative to replace or repair diseased or damaged tissues from the patient's own cells. A substantial number of tissue-engineered skin substitutes (TESSs) have been conceived and evaluated in vitro and in vivo showing promising results in the preclinical stage. However, only a few constructs have been used in the clinic. The lack of standardization in evaluation methods employed may in part be responsible for this discrepancy. This review covers the most well-known and up-to-date methods for evaluating the optimization of new TESSs and orientative guidelines for the evaluation of TESSs are proposed.
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Affiliation(s)
- Laura Linares-Gonzalez
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Teresa Rodenas-Herranz
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Fernando Campos
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Ricardo Ruiz-Villaverde
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Víctor Carriel
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
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12
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Montero A, Atienza C, Elvira C, Jorcano JL, Velasco D. Hyaluronic acid-fibrin hydrogels show improved mechanical stability in dermo-epidermal skin substitutes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112352. [PMID: 34474900 DOI: 10.1016/j.msec.2021.112352] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 07/15/2021] [Accepted: 07/29/2021] [Indexed: 12/16/2022]
Abstract
Human plasma-derived bilayered skin substitutes have been successfully used by our group in different skin tissue engineering applications. However, several issues associated with their poor mechanical properties were observed, and they often resulted in rapid contraction and degradation. In this sense, hydrogels composed of plasma-derived fibrin and thiolated-hyaluronic acid (HA-SH, 0.05-0.2% w/v) crosslinked with poly(ethylene glycol) diacrylate (PEGDA, 2:1, 6:1, 10:1 and 14:1 mol of thiol to moles of acrylate) were developed to reduce the shrinking rates and enhance the mechanical properties of the plasma-derived matrices. Plasma/HA-SH-PEGDA hydrogels showed a decrease in the contraction behaviour ranging from 5% to 25% and an increase in Young's modulus. Furthermore, the results showed that a minimal amount of the added HA-SH was able to escape the plasma/HA-SH-PEGDA hydrogels after incubation in PBS. The results showed that the increase in rigidity of the matrices as well as the absence of adhesion cellular moieties in the second network of HA-SH/PEGDA, resulted in a decrease in contraction in the presence of the encapsulated primary human fibroblasts (hFBs), which may have been related to an overall decrease in proliferation of hFBs found for all hydrogels after 7 days with respect to the plasma control. The metabolic activity of hFB returned to the control levels at 14 days except for the 2:1 PEGDA crosslinking ratio. The metabolic activity of primary human keratinocytes (hKCs) seeded on the hydrogels showed a decrease when high amounts of HA-SH and PEGDA crosslinker were incorporated. Organotypic skins formed in vitro after 21 days with plasma/HA-SH-PEGDA hydrogels with an HA content of 0.05% w/v and a 2:1 crosslinking ratio were up to three times thicker than the plasma controls, evidencing a reduction in contraction, while they also showed better and more homogeneous keratin 10 (K10) expression in the supra-basal layer of the epidermis. Furthermore, filaggrin expression showed the formation of an enhanced stratum corneum for the constructs containing HA. These promising results indicate the potential of using these biomimetic hydrogels as in vitro skin models for pharmaceutical products and cosmetics and future work will elucidate their potential functionality for clinical treatment.
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Affiliation(s)
- Andrés Montero
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain
| | - Clara Atienza
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain
| | - Carlos Elvira
- Institute of Polymer Science and Technology, CSIC, Juan de la Cierva 3, Madrid 28006, Spain
| | - José Luis Jorcano
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.
| | - Diego Velasco
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.
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13
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Elastin-Plasma Hybrid Hydrogels for Skin Tissue Engineering. Polymers (Basel) 2021; 13:polym13132114. [PMID: 34203144 PMCID: PMC8271496 DOI: 10.3390/polym13132114] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/20/2021] [Accepted: 06/22/2021] [Indexed: 11/23/2022] Open
Abstract
Dermo-epidermal equivalents based on plasma-derived fibrin hydrogels have been extensively studied for skin engineering. However, they showed rapid degradation and contraction over time and low mechanical properties which limit their reproducibility and lifespan. In order to achieve better mechanical properties, elasticity and biological properties, we incorporated a elastin-like recombinamer (ELR) network, based on two types of ELR, one modified with azide (SKS-N3) and other with cyclooctyne (SKS-Cyclo) chemical groups at molar ratio 1:1 at three different SKS (serine-lysine-serine sequence) concentrations (1, 3, and 5 wt.%), into plasma-derived fibrin hydrogels. Our results showed a decrease in gelation time and contraction, both in the absence and presence of the encapsulated human primary fibroblasts (hFBs), higher mechanical properties and increase in elasticity when SKSs content is equal or higher than 3%. However, hFBs proliferation showed an improvement when the lowest SKS content (1 wt.%) was used but started decreasing when increasing SKS concentration at day 14 with respect to the plasma control. Proliferation of human primary keratinocytes (hKCs) seeded on top of the hybrid-plasma hydrogels containing 1 and 3% of SKS showed no differences to plasma control and an increase in hKCs proliferation was observed for hybrid-plasma hydrogels containing 5 wt.% of SKS. These promising results showed the need to achieve a balance between the reduced contraction, the better mechanical properties and biological properties and indicate the potential of using this type of hydrogel as a testing platform for pharmaceutical products and cosmetics, and future work will elucidate their potential.
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Valencia L, Canalejas-Tejero V, Clemente M, Fernaud I, Holgado M, Jorcano JL, Velasco D. A new microfluidic method enabling the generation of multi-layered tissues-on-chips using skin cells as a proof of concept. Sci Rep 2021; 11:13160. [PMID: 34162909 PMCID: PMC8222336 DOI: 10.1038/s41598-021-91875-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 05/31/2021] [Indexed: 12/16/2022] Open
Abstract
Microfluidic-based tissues-on-chips (TOCs) have thus far been restricted to modelling simple epithelia as a single cell layer, but likely due to technical difficulties, no TOCs have been reported to include both an epithelial and a stromal component despite the biological importance of the stroma for the structure and function of human tissues. We present, for the first time, a novel approach to generate 3D multilayer tissue models in microfluidic platforms. As a proof of concept, we modelled skin, including a dermal and an epidermal compartment. To accomplish this, we developed a parallel flow method enabling the deposition of bilayer tissue in the upper chamber, which was subsequently maintained under dynamic nutrient flow conditions through the lower chamber, mimicking the function of a blood vessel. We also designed and built an inexpensive, easy-to-implement, versatile, and robust vinyl-based device that overcomes some of the drawbacks present in PDMS-based chips. Preliminary tests indicate that this biochip will allow the development and maintenance of multilayer tissues, which opens the possibility of better modelling of the complex cell-cell and cell-matrix interactions that exist in and between the epithelium and mesenchyme, allowing for better-grounded tissue modelling and drug screening.
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Affiliation(s)
- L Valencia
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
| | - V Canalejas-Tejero
- Group of Optics, Photonics and Biophotonics (GOFB), Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
| | - M Clemente
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
| | - I Fernaud
- Laboratorio Cajal de Circuitos Corticales, Center for Biomedical Technology, Universidad Politécnica de Madrid and and Consejo Superior de Investigaciones Científicas, C.S.I.C, Campus de Montegancedo, Madrid, Spain
| | - M Holgado
- Group of Optics, Photonics and Biophotonics (GOFB), Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain.
- Departamento de Física Aplicada e Ingeniería de Materiales, Escuela Técnica Superior de Ingenieros Industriales, Madrid, Spain.
- Group of Organ and Tissue on-a-chip and In-Vitro Detection, Health Research Institute of the Hospital Clínico San Carlos, Madrid, Spain.
| | - J L Jorcano
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain.
- Division of Epithelial Biomedicine, CIEMAT, Madrid, Spain.
| | - D Velasco
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain.
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.
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15
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Montero A, Quílez C, Valencia L, Girón P, Jorcano JL, Velasco D. Effect of Fibrin Concentration on the In Vitro Production of Dermo-Epidermal Equivalents. Int J Mol Sci 2021; 22:ijms22136746. [PMID: 34201667 PMCID: PMC8269027 DOI: 10.3390/ijms22136746] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 06/10/2021] [Accepted: 06/17/2021] [Indexed: 01/18/2023] Open
Abstract
Human plasma-derived bilayered skin substitutes were successfully used by our group to produce human-based in vitro skin models for toxicity, cosmetic, and pharmaceutical testing. However, mechanical weakness, which causes the plasma-derived fibrin matrices to contract significantly, led us to attempt to improve their stability. In this work, we studied whether an increase in fibrin concentration from 1.2 to 2.4 mg/mL (which is the useful fibrinogen concentration range that can be obtained from plasma) improves the matrix and, hence, the performance of the in vitro skin cultures. The results show that this increase in fibrin concentration indeed affected the mechanical properties by doubling the elastic moduli and the maximum load. A structural analysis indicated a decreased porosity for the 2.4 mg/mL hydrogels, which can help explain this mechanical behavior. The contraction was clearly reduced for the 2.4 mg/mL matrices, which also allowed for the growth and proliferation of primary fibroblasts and keratinocytes, although at a somewhat reduced rate compared to the 1.2 mg/mL gels. Finally, both concentrations of fibrin gave rise to organotypic skin cultures with a fully differentiated epidermis, although their lifespans were longer (25–35%) in cultures with more concentrated matrices, which improves their usefulness. These systems will allow the generation of much better in vitro skin models for the testing of drugs, cosmetics and chemicals, or even to “personalized” skin for the diagnosis or determination of the most effective treatment possible.
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Affiliation(s)
- Andrés Montero
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), 28903 Madrid, Spain; (A.M.); (C.Q.); (L.V.); (P.G.)
| | - Cristina Quílez
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), 28903 Madrid, Spain; (A.M.); (C.Q.); (L.V.); (P.G.)
| | - Leticia Valencia
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), 28903 Madrid, Spain; (A.M.); (C.Q.); (L.V.); (P.G.)
| | - Paula Girón
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), 28903 Madrid, Spain; (A.M.); (C.Q.); (L.V.); (P.G.)
| | - José Luis Jorcano
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), 28903 Madrid, Spain; (A.M.); (C.Q.); (L.V.); (P.G.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain
- Correspondence: (J.L.J.); (D.V.)
| | - Diego Velasco
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), 28903 Madrid, Spain; (A.M.); (C.Q.); (L.V.); (P.G.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain
- Correspondence: (J.L.J.); (D.V.)
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16
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Ordiales H, Vázquez-López F, Pevida M, Vázquez-Losada B, Vázquez F, Quirós LM, Martín C. Glycosaminoglycans Are Involved in the Adhesion of Candida albicans and Malassezia Species to Keratinocytes But Not to Dermal Fibroblasts. ACTAS DERMO-SIFILIOGRAFICAS 2021:S1578-2190(21)00161-X. [PMID: 34052141 DOI: 10.1016/j.adengl.2021.05.002] [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: 11/18/2020] [Accepted: 02/08/2021] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Superficial mycoses are some of the most common diseases worldwide. The usual culprits-yeasts belonging to the genera Malassezia and Candida-are commensal species in the skin that can cause opportunistic infections. We aimed to determine whether these yeasts use glycosaminoglycans (GAGs) as adhesion receptors to mediate binding to epithelial cells. MATERIAL AND METHODS In keratinocyte and dermal fibroblast cultures, we used rhodamine B and genistein to inhibit GAG synthesis to study the role these molecules play in the adhesion of Candida albicans and Malassezia species to cells. We also analyzed GAG involvement by means of enzyme digestion, using specific lyases. RESULTS Rhodamine B partially inhibited the adhesion of both fungi to keratinocytes but not to fibroblasts. Selective digestion of heparan sulfate enhanced the binding of Malassezia species to keratinocytes and of both fungi to fibroblasts. Chondroitin sulfate digestion decreased Calbicans adhesion to keratinocytes, but increased the adhesion of the filamentous forms of this species to fibroblasts. CONCLUSIONS Cell surface GAGs appear to play a role in the adhesion of Calbicans and Malasezzia species to keratinocytes. In contrast, their adhesion to fibroblasts appears to be enhanced by GAG inhibition, suggesting that some other type of receptor is the mediator.
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Affiliation(s)
- H Ordiales
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, Spain; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, Spain
| | - F Vázquez-López
- Servicio de Dermatología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain; Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, Spain
| | - M Pevida
- Centro Comunitario de Sangre y Tejidos del Principado de Asturias y CIBERER, U714, Oviedo, Asturias, Spain
| | - B Vázquez-Losada
- Servicio de Dermatología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - F Vázquez
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, Spain; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, Spain; Servicio de Microbiología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - L M Quirós
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, Spain; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, Spain
| | - C Martín
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, Spain; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, Spain.
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17
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Gsib O, Eggermont LJ, Egles C, Bencherif SA. Engineering a macroporous fibrin-based sequential interpenetrating polymer network for dermal tissue engineering. Biomater Sci 2021; 8:7106-7116. [PMID: 33089849 DOI: 10.1039/d0bm01161d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The success of skin tissue engineering for deep wound healing relies predominantly on the design of innovative and effective biomaterials. This study reports the synthesis and characterization of a new type of naturally-derived and macroporous interpenetrating polymer network (IPN) for skin repair. These biomaterials consist of a biologically active fibrous fibrin network polymerized within a mechanically robust and macroporous construct made of polyethylene glycol and biodegradable serum albumin (PEGDM-co-SAM). First, mesoporous PEGDM-co-SAM hydrogels were synthesized and subjected to cryotreatment to introduce an interconnected macroporous network. Subsequently, fibrin precursors were incorporated within the cryotreated PEG-based network and then allowed to spontaneously polymerize and form a sequential IPN. Rheological measurements indicated that fibrin-based sequential IPN hydrogels exhibited improved and tunable mechanical properties when compared to fibrin hydrogels alone. In vitro data showed that human dermal fibroblasts adhere, infiltrate and proliferate within the IPN constructs, and were able to secrete endogenous extracellular matrix proteins, namely collagen I and fibronectin. Furthermore, a preclinical study in mice demonstrated that IPNs were stable over 1-month following subcutaneous implantation, induced a minimal host inflammatory response, and displayed a substantial cellular infiltration and tissue remodeling within the constructs. Collectively, these data suggest that macroporous and mechanically reinforced fibrin-based sequential IPN hydrogels are promising three-dimensional platforms for dermal tissue regeneration.
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Affiliation(s)
- Olfat Gsib
- Laboratoire de BioMécanique et BioIngénierie (BMBI), UMR CNRS 7388, Sorbonne Universités, Université de Technologie of Compiègne (UTC), Compiègne, France.
| | - Loek J Eggermont
- Departments of Chemical Engineering and Bioengineering, Northeastern University, Boston, MA, USA
| | - Christophe Egles
- Laboratoire de BioMécanique et BioIngénierie (BMBI), UMR CNRS 7388, Sorbonne Universités, Université de Technologie of Compiègne (UTC), Compiègne, France.
| | - Sidi A Bencherif
- Laboratoire de BioMécanique et BioIngénierie (BMBI), UMR CNRS 7388, Sorbonne Universités, Université de Technologie of Compiègne (UTC), Compiègne, France. and Departments of Chemical Engineering and Bioengineering, Northeastern University, Boston, MA, USA and Department of Bioengineering, Northeastern University, Boston, MA, USA and Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
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18
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Abstract
We describe an extrusion-based method to print a human bilayered skin using bioinks containing human plasma and primary human fibroblasts and keratinocytes from skin biopsies. We generate 100 cm2 of printed skin in less than 35 min. We analyze its structure using histological and immunohistochemical methods, both in in vitro 3D cultures and upon transplantation to immunodeficient mice. We have demonstrated that the printed skin is similar to normal human skin and indistinguishable from bilayered dermo-epidermal equivalents, previously produced manually in our laboratory and successfully used in the clinic.
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19
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Ordiales H, Vázquez-López F, Pevida M, Vázquez-Losada B, Vázquez F, Quirós LM, Martín C. Glycosaminoglycans Are Involved in the Adhesion of Candida albicans and Malassezia Species to Keratinocytes But Not to Dermal Fibroblasts. ACTAS DERMO-SIFILIOGRAFICAS 2021; 112:S0001-7310(21)00086-7. [PMID: 33609451 DOI: 10.1016/j.ad.2021.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/12/2021] [Accepted: 02/08/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Superficial mycoses are some of the most common diseases worldwide. The usual culprits - yeasts belonging to the genera Malassezia and Candida - are commensal species in the skin that can cause opportunistic infections. We aimed to determine whether these yeasts use glycosaminoglycans (GAGs) as adhesion receptors to mediate binding to epithelial cells. MATERIAL AND METHODS In keratinocyte and dermal fibroblast cultures, we used rhodamine B and genistein to inhibit GAG synthesis to study the role these molecules play in the adhesion of Candida albicans (C. albicans) and Malassezia species to cells. We also analyzed GAG involvement by means of enzyme digestion, using specific lyases. RESULTS Rhodamine B partially inhibited the adhesion of both fungi to keratinocytes but not to fibroblasts. Selective digestion of heparan sulfate enhanced the binding of Malassezia species to keratinocytes and of both fungi to fibroblasts. Chondroitin sulfate digestion decreased C. albicans adhesion to keratinocytes, but increased the adhesion of the filamentous forms of this species to fibroblasts. CONCLUSIONS Cell surface GAGs appear to play a role in the adhesion of C albicans and Malasezzia species to keratinocytes. In contrast, their adhesion to fibroblasts appears to be enhanced by GAG inhibition, suggesting that some other type of receptor is the mediator.
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Affiliation(s)
- H Ordiales
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, España; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, España
| | - F Vázquez-López
- Servicio de Dermatología, Hospital Universitario Central de Asturias, Oviedo, Asturias, España; Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España
| | - M Pevida
- Centro Comunitario de Sangre y Tejidos del Principado de Asturias y CIBERER, U714, Oviedo, Asturias, España
| | - B Vázquez-Losada
- Servicio de Dermatología, Hospital Universitario Central de Asturias, Oviedo, Asturias, España
| | - F Vázquez
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, España; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, España; Servicio de Microbiología, Hospital Universitario Central de Asturias, Oviedo, Asturias, España
| | - L M Quirós
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, España; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, España
| | - C Martín
- Instituto Universitario Fernández-Vega (IUFV), Universidad de Oviedo, Oviedo, Asturias, España; Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Asturias, España.
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20
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Guérin LP, Le-Bel G, Desjardins P, Couture C, Gillard E, Boisselier É, Bazin R, Germain L, Guérin SL. The Human Tissue-Engineered Cornea (hTEC): Recent Progress. Int J Mol Sci 2021; 22:ijms22031291. [PMID: 33525484 PMCID: PMC7865732 DOI: 10.3390/ijms22031291] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 12/11/2022] Open
Abstract
Each day, about 2000 U.S. workers have a job-related eye injury requiring medical treatment. Corneal diseases are the fifth cause of blindness worldwide. Most of these diseases can be cured using one form or another of corneal transplantation, which is the most successful transplantation in humans. In 2012, it was estimated that 12.7 million people were waiting for a corneal transplantation worldwide. Unfortunately, only 1 in 70 patients received a corneal graft that same year. In order to provide alternatives to the shortage of graftable corneas, considerable progress has been achieved in the development of living corneal substitutes produced by tissue engineering and designed to mimic their in vivo counterpart in terms of cell phenotype and tissue architecture. Most of these substitutes use synthetic biomaterials combined with immortalized cells, which makes them dissimilar from the native cornea. However, studies have emerged that describe the production of tridimensional (3D) tissue-engineered corneas using untransformed human corneal epithelial cells grown on a totally natural stroma synthesized by living corneal fibroblasts, that also show appropriate histology and expression of both extracellular matrix (ECM) components and integrins. This review highlights contributions from laboratories working on the production of human tissue-engineered corneas (hTECs) as future substitutes for grafting purposes. It overviews alternative models to the grafting of cadaveric corneas where cell organization is provided by the substrate, and then focuses on their 3D counterparts that are closer to the native human corneal architecture because of their tissue development and cell arrangement properties. These completely biological hTECs are therefore very promising as models that may help understand many aspects of the molecular and cellular mechanistic response of the cornea toward different types of diseases or wounds, as well as assist in the development of novel drugs that might be promising for therapeutic purposes.
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Affiliation(s)
- Louis-Philippe Guérin
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Gaëtan Le-Bel
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Pascale Desjardins
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Camille Couture
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Elodie Gillard
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Élodie Boisselier
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Richard Bazin
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Lucie Germain
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Sylvain L. Guérin
- CUO-Recherche, Médecine Régénératrice—Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1S 4L8, Canada; (L.-P.G.); (G.L.-B.); (P.D.); (C.C.); (E.G.); (É.B.); (R.B.); (L.G.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada
- Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
- Correspondence: ; Tel.: +1-418-682-7565
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21
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Transcriptomic Analysis of a Diabetic Skin-Humanized Mouse Model Dissects Molecular Pathways Underlying the Delayed Wound Healing Response. Genes (Basel) 2020; 12:genes12010047. [PMID: 33396192 PMCID: PMC7824036 DOI: 10.3390/genes12010047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 12/19/2022] Open
Abstract
Defective healing leading to cutaneous ulcer formation is one of the most feared complications of diabetes due to its consequences on patients' quality of life and on the healthcare system. A more in-depth analysis of the underlying molecular pathophysiology is required to develop effective healing-promoting therapies for those patients. Major architectural and functional differences with human epidermis limit extrapolation of results coming from rodents and other small mammal-healing models. Therefore, the search for reliable humanized models has become mandatory. Previously, we developed a diabetes-induced delayed humanized wound healing model that faithfully recapitulated the major histological features of such skin repair-deficient condition. Herein, we present the results of a transcriptomic and functional enrichment analysis followed by a mechanistic analysis performed in such humanized wound healing model. The deregulation of genes implicated in functions such as angiogenesis, apoptosis, and inflammatory signaling processes were evidenced, confirming published data in diabetic patients that in fact might also underlie some of the histological features previously reported in the delayed skin-humanized healing model. Altogether, these molecular findings support the utility of such preclinical model as a valuable tool to gain insight into the molecular basis of the delayed diabetic healing with potential impact in the translational medicine field.
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22
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Martínez-Santamaría L, Cárcamo C, García-Pardo L, García-Arranz M, Melen G, Guerrero-Aspizua S, Llanos L, Río MD, García-Olmo D, Escámez MJ. Combined adipose mesenchymal stromal cell advanced therapy resolved a recalcitrant leg ulcer in an 85-year-old patient. Regen Med 2020; 15:2053-2065. [PMID: 33245008 DOI: 10.2217/rme-2020-0139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Venous leg ulcers (VLU) represent an uphill economic, health and social burden, aggravated in the elderly. Best-practice care interventions are often insufficient and alternative therapies need to be explored. Herein, we have treated for the first time a chronic VLU in an elderly patient by combining cell therapy and tissue engineering in the context of a compassionate use. The administration of allogeneic adipose-derived mesenchymal stromal cells (MSCs) embedded in a plasma-based bioengineered dermis covering the ulcer bed and also injected into the ulcer margins led to the complete closure of a 10-year recalcitrant VLU in an 85-year-old patient. Regenerative properties of MSCs might be boosted by the use of bioengineered matrices for their delivery.
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Affiliation(s)
- Lucía Martínez-Santamaría
- Department of Bioengineering, Carlos III University (UC3M). Avda. Universidad, 30. 28911. Leganés, Madrid, Spain.,Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714. C/ Monforte de Lemos 3-5. 28029 Madrid, Spain.,Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain.,Centre for Energy, Environment & Technology Research (CIEMAT). Avda. Complutense, 40, 28040 Madrid, Spain
| | - Carmen Cárcamo
- Plastic & Reconstructive Surgery Department, Hospital Universitario Fundación Jiménez Díaz. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain
| | - Lourdes García-Pardo
- Plastic & Reconstructive Surgery Department, Hospital Universitario Fundación Jiménez Díaz. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain
| | - Mariano García-Arranz
- New Therapy Unit, Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz & Universidad Autónoma de Madrid. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain.,Department of Surgery, Medicine School, Universidad Autónoma de Madrid. C/ Arzobispo Morcillo, 4, 28029 Madrid, Spain
| | - Gustavo Melen
- Production Unit of Advanced Therapies Medicines, Fundación para la Investigación Biomédica del Hospital Infantil Universitario Niño Jesús. Avda. de Menéndez Pelayo,65, 28009 Madrid, Spain
| | - Sara Guerrero-Aspizua
- Department of Bioengineering, Carlos III University (UC3M). Avda. Universidad, 30. 28911. Leganés, Madrid, Spain.,Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714. C/ Monforte de Lemos 3-5. 28029 Madrid, Spain.,Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain.,Centre for Energy, Environment & Technology Research (CIEMAT). Avda. Complutense, 40, 28040 Madrid, Spain
| | - Lucía Llanos
- Clinical Research Unit, Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain
| | - Marcela Del Río
- Department of Bioengineering, Carlos III University (UC3M). Avda. Universidad, 30. 28911. Leganés, Madrid, Spain.,Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714. C/ Monforte de Lemos 3-5. 28029 Madrid, Spain.,Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain.,Centre for Energy, Environment & Technology Research (CIEMAT). Avda. Complutense, 40, 28040 Madrid, Spain
| | - Damián García-Olmo
- New Therapy Unit, Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz & Universidad Autónoma de Madrid. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain.,Department of Surgery, Medicine School, Universidad Autónoma de Madrid. C/ Arzobispo Morcillo, 4, 28029 Madrid, Spain
| | - María-José Escámez
- Department of Bioengineering, Carlos III University (UC3M). Avda. Universidad, 30. 28911. Leganés, Madrid, Spain.,Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714. C/ Monforte de Lemos 3-5. 28029 Madrid, Spain.,Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz. Avda. de los Reyes Católicos, 2, 28040 Madrid, Spain.,Centre for Energy, Environment & Technology Research (CIEMAT). Avda. Complutense, 40, 28040 Madrid, Spain
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23
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Raloxifene and n-Acetylcysteine Ameliorate TGF-Signalling in Fibroblasts from Patients with Recessive Dominant Epidermolysis Bullosa. Cells 2020; 9:cells9092108. [PMID: 32947957 PMCID: PMC7565802 DOI: 10.3390/cells9092108] [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: 08/10/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a severe skin disease caused by mutation of the COL7A1 gene. RDEB is associated with high levels of TGF-β1, which is likely to be involved in the fibrosis that develops in this disease. Endoglin (CD105) is a type III coreceptor for TGF-β1 and its overexpression in fibroblasts deregulates physiological Smad/Alk1/Alk5 signalling, repressing the synthesis of TGF-β1 and extracellular matrix (ECM) proteins. Raloxifene is a specific estrogen receptor modulator designated as an orphan drug for hereditary hemorrhagic telangiectasia, a rare vascular disease. Raloxifene stimulates endoglin synthesis, which could attenuate fibrosis. By contrast, the antioxidant N-acetylcysteine may have therapeutic value to rectify inflammation, fibrosis and endothelial dysfunction. Thus, we present here a repurposing strategy based on the molecular and functional screening of fibroblasts from RDEB patients with these drugs, leading us to propose the repositioning of these two well-known drugs currently in clinical use, raloxifene and N-acetylcysteine, to counteract fibrosis and inflammation in RDEB. Both compounds modulate the profibrotic events that may ultimately be responsible for the clinical manifestations in RDEB, suggesting that these findings may also be relevant for other diseases in which fibrosis is an important pathophysiological event.
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24
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Montero A, Acosta S, Hernández R, Elvira C, Jorcano JL, Velasco D. Contraction of fibrin-derived matrices and its implications for in vitro human skin bioengineering. J Biomed Mater Res A 2020; 109:500-514. [PMID: 32506782 DOI: 10.1002/jbm.a.37033] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 05/09/2020] [Accepted: 05/19/2020] [Indexed: 12/14/2022]
Abstract
It is well-known that fibroblasts play a fundamental role in the contraction of collagen and fibrin hydrogels when used in the production of in vitro bilayered skin substitutes. However, little is known about the contribution of other factors, such as the hydrogel matrix itself, on this contraction. In this work, we studied the contraction of plasma-derived fibrin hydrogels at different temperatures (4, 23, and 37°C) in an isotonic buffer (phosphate-buffered saline). These types of hydrogels presented a contraction of approximately 30% during the first 24 hr, following a similar kinetics irrespectively of the temperature. This kinetics continued in a slowed down manner to reach a plateau value of 40% contraction after 10-15 days. Contraction of commercial fibrinogen hydrogels was studied under similar conditions and the kinetics was completed after 8 hr, reaching values between 20 and 70% depending on the temperature. We attribute these substantial differences to a modulatory effect on the contraction due to plasma proteins which are initially embedded in, and progressively released from, the plasma-based hydrogels. The elastic modulus of hydrogels measured at a constant frequency decreased with increasing temperature in 7-day gels. Rheological measurements showed the absence of a strain-hardening behavior in the plasma-derived fibrin hydrogels. Finally, plasma-derived fibrin hydrogels with and without human primary fibroblast and keratinocytes were prepared in transwell inserts and their height measured over time. Both cellular and acellular gels showed a height reduction of 30% during the first 24 hr likely due to the above-mentioned intrinsic fibrin matrix contraction.
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Affiliation(s)
- Andrés Montero
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
| | - Sonia Acosta
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
| | - Rebeca Hernández
- Institute of Polymer Science and Technology, CSIC, Madrid, Spain
| | - Carlos Elvira
- Department of Applied Macromolecular Chemistry, Institute of Polymer Science and Technology, CSIC, Madrid, Spain
| | - José Luis Jorcano
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain.,Division of Epithelial Biomedicine, CIEMAT, Madrid, Spain
| | - Diego Velasco
- Department of Bioengineering and Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
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25
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Campos F, Bonhome-Espinosa AB, Chato-Astrain J, Sánchez-Porras D, García-García ÓD, Carmona R, López-López MT, Alaminos M, Carriel V, Rodriguez IA. Evaluation of Fibrin-Agarose Tissue-Like Hydrogels Biocompatibility for Tissue Engineering Applications. Front Bioeng Biotechnol 2020; 8:596. [PMID: 32612984 PMCID: PMC7308535 DOI: 10.3389/fbioe.2020.00596] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022] Open
Abstract
Generation of biocompatible and biomimetic tissue-like biomaterials is crucial to ensure the success of engineered substitutes in tissue repair. Natural biomaterials able to mimic the structure and composition of native extracellular matrices typically show better results than synthetic biomaterials. The aim of this study was to perform an in vivo time-course biocompatibility analysis of fibrin-agarose tissue-like hydrogels at the histological, imagenological, hematological, and biochemical levels. Tissue-like hydrogels were produced by a controlled biofabrication process allowing the generation of biomechanically and structurally stable hydrogels. The hydrogels were implanted subcutaneously in 25 male Wistar rats and evaluated after 1, 5, 9, and 12 weeks of in vivo follow-up. At each period of time, animals were analyzed using magnetic resonance imaging (MRI), hematological analyses, and histology of the local area in which the biomaterials were implanted, along with major vital organs (liver, kidney, spleen, and regional lymph nodes). MRI results showed no local or distal alterations during the whole study period. Hematology and biochemistry showed some fluctuation in blood cells values and in some biochemical markers over the time. However, these parameters were progressively normalized in the framework of the homeostasis process. Histological, histochemical, and ultrastructural analyses showed that implantation of fibrin-agarose scaffolds was followed by a progressive process of cell invasion, synthesis of components of the extracellular matrix (mainly, collagen) and neovascularization. Implanted biomaterials were successfully biodegraded and biointegrated at 12 weeks without any associated histopathological alteration in the implanted zone or distal vital organs. In summary, our in vivo study suggests that fibrin-agarose tissue-like hydrogels could have potential clinical usefulness in engineering applications in terms of biosafety and biocompatibility.
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Affiliation(s)
- Fernando Campos
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ana Belen Bonhome-Espinosa
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain.,Department of Applied Physics, Faculty of Science, University of Granada, Granada, Spain
| | - Jesús Chato-Astrain
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - David Sánchez-Porras
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain
| | - Óscar Darío García-García
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ramón Carmona
- Department of Cell Biology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Modesto T López-López
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain.,Department of Applied Physics, Faculty of Science, University of Granada, Granada, Spain
| | - Miguel Alaminos
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Víctor Carriel
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ismael A Rodriguez
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Department of Histology, Faculty of Dentistry, National University of Cordoba, Cordoba, Argentina
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26
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Guerrero-Aspizua S, González-Masa A, Conti CJ, García M, Chacón-Solano E, Larcher F, del Río M. Humanization of Tumor Stroma by Tissue Engineering as a Tool to Improve Squamous Cell Carcinoma Xenograft. Int J Mol Sci 2020; 21:ijms21061951. [PMID: 32178458 PMCID: PMC7139348 DOI: 10.3390/ijms21061951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/26/2020] [Accepted: 03/09/2020] [Indexed: 12/26/2022] Open
Abstract
The role of stroma is fundamental in the development and behavior of epithelial tumors. In this regard, limited growth of squamous cell carcinomas (SCC) or cell-lines derived from them has been achieved in immunodeficient mice. Moreover, lack of faithful recapitulation of the original human neoplasia complexity is often observed in xenografted tumors. Here, we used tissue engineering techniques to recreate a humanized tumor stroma for SCCs grafted in host mice, by combining CAF (cancer associated fibroblasts)-like cells with a biocompatible scaffold. The stroma was either co-injected with epithelial cell lines derived from aggressive SCC or implanted 15 days before the injection of the tumoral cells, to allow its vascularization and maturation. None of the mice injected with the cell lines without stroma were able to develop a SCC. In contrast, tumors were able to grow when SCC cells were injected into previously established humanized stroma. Histologically, all of the regenerated tumors were moderately differentiated SCC with a well-developed stroma, resembling that found in the original human neoplasm. Persistence of human stromal cells was also confirmed by immunohistochemistry. In summary, we provide a proof of concept that humanized tumor stroma, generated by tissue engineering, can facilitate the development of epithelial tumors in immunodeficient mice.
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Affiliation(s)
- Sara Guerrero-Aspizua
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain; (A.G.-M.); (C.J.C.); (M.G.); (E.C.-S.); (F.L.); (M.d.R.)
- Hospital Fundación Jiménez Díaz e Instituto de Investigación FJD, 28040 Madrid, Spain
- Epithelial Biomedicine Division. CIEMAT, 28040 Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714, 28911 Madrid, Spain
- Correspondence: ; Tel.: +34-91-624-8206
| | - Andrea González-Masa
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain; (A.G.-M.); (C.J.C.); (M.G.); (E.C.-S.); (F.L.); (M.d.R.)
| | - Claudio J. Conti
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain; (A.G.-M.); (C.J.C.); (M.G.); (E.C.-S.); (F.L.); (M.d.R.)
- Hospital Fundación Jiménez Díaz e Instituto de Investigación FJD, 28040 Madrid, Spain
| | - Marta García
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain; (A.G.-M.); (C.J.C.); (M.G.); (E.C.-S.); (F.L.); (M.d.R.)
- Hospital Fundación Jiménez Díaz e Instituto de Investigación FJD, 28040 Madrid, Spain
- Epithelial Biomedicine Division. CIEMAT, 28040 Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714, 28911 Madrid, Spain
| | - Esteban Chacón-Solano
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain; (A.G.-M.); (C.J.C.); (M.G.); (E.C.-S.); (F.L.); (M.d.R.)
- Hospital Fundación Jiménez Díaz e Instituto de Investigación FJD, 28040 Madrid, Spain
- Epithelial Biomedicine Division. CIEMAT, 28040 Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714, 28911 Madrid, Spain
| | - Fernando Larcher
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain; (A.G.-M.); (C.J.C.); (M.G.); (E.C.-S.); (F.L.); (M.d.R.)
- Hospital Fundación Jiménez Díaz e Instituto de Investigación FJD, 28040 Madrid, Spain
- Epithelial Biomedicine Division. CIEMAT, 28040 Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714, 28911 Madrid, Spain
| | - Marcela del Río
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain; (A.G.-M.); (C.J.C.); (M.G.); (E.C.-S.); (F.L.); (M.d.R.)
- Hospital Fundación Jiménez Díaz e Instituto de Investigación FJD, 28040 Madrid, Spain
- Epithelial Biomedicine Division. CIEMAT, 28040 Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), U714, 28911 Madrid, Spain
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27
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Alexaline MM, Magne B, Zuleta Rodríguez A, Nivet M, Bacqueville D, Lataillade J, Trouillas M. Influence of fibrin matrices and their released factors on epidermal substitute phenotype and engraftment. J Tissue Eng Regen Med 2019; 13:1362-1374. [DOI: 10.1002/term.2879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 04/24/2019] [Accepted: 04/29/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Maia M. Alexaline
- Unité mixte Inserm U1197 ‐ Institut de Recherche Biomédicale des Armées (IRBA), Antenne Centre de Transfusion Sanguine des Armées Clamart France
- Celogos Paris France
| | - Brice Magne
- Unité mixte Inserm U1197 ‐ Institut de Recherche Biomédicale des Armées (IRBA), Antenne Centre de Transfusion Sanguine des Armées Clamart France
- Scarcell therapeutics Paris France
| | - Amparo Zuleta Rodríguez
- Unité mixte Inserm U1197 ‐ Institut de Recherche Biomédicale des Armées (IRBA), Antenne Centre de Transfusion Sanguine des Armées Clamart France
| | - Muriel Nivet
- Unité mixte Inserm U1197 ‐ Institut de Recherche Biomédicale des Armées (IRBA), Antenne Centre de Transfusion Sanguine des Armées Clamart France
| | - Daniel Bacqueville
- Unité mixte Inserm U1197 ‐ Institut de Recherche Biomédicale des Armées (IRBA), Antenne Centre de Transfusion Sanguine des Armées Clamart France
- Service Pharmacologie Division 2 et Pharmacocinétique cutanée, Département PharmacologieCentre R&D Pierre Fabre Dermo‐Cosmétique Toulouse France
| | - Jean‐Jacques Lataillade
- Unité mixte Inserm U1197 ‐ Institut de Recherche Biomédicale des Armées (IRBA), Antenne Centre de Transfusion Sanguine des Armées Clamart France
| | - Marina Trouillas
- Unité mixte Inserm U1197 ‐ Institut de Recherche Biomédicale des Armées (IRBA), Antenne Centre de Transfusion Sanguine des Armées Clamart France
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28
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Elias MS, Wright SC, Remenyi J, Abbott JC, Bray SE, Cole C, Edwards S, Gierlinski M, Glok M, McGrath JA, Nicholson WV, Paternoster L, Prescott AR, Have ST, Whitfield PD, Lamond AI, Brown SJ. EMSY expression affects multiple components of the skin barrier with relevance to atopic dermatitis. J Allergy Clin Immunol 2019; 144:470-481. [PMID: 31158401 PMCID: PMC6683598 DOI: 10.1016/j.jaci.2019.05.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/07/2019] [Accepted: 05/14/2019] [Indexed: 12/14/2022]
Abstract
Background Atopic dermatitis (AD) is a common, complex, and highly heritable inflammatory skin disease. Genome-wide association studies offer opportunities to identify molecular targets for drug development. A risk locus on chromosome 11q13.5 lies between 2 candidate genes, EMSY and LRRC32 (leucine-rich repeat-containing 32) but the functional mechanisms affecting risk of AD remain unclear. Objectives We sought to apply a combination of genomic and molecular analytic techniques to investigate which genes are responsible for genetic risk at this locus and to define mechanisms contributing to atopic skin disease. Methods We used interrogation of available genomic and chromosome conformation data in keratinocytes, small interfering RNA (siRNA)–mediated knockdown in skin organotypic culture and functional assessment of barrier parameters, mass spectrometric global proteomic analysis and quantitative lipid analysis, electron microscopy of organotypic skin, and immunohistochemistry of human skin samples. Results Genomic data indicate active promoters in the genome-wide association study locus and upstream of EMSY; EMSY, LRRC32, and intergenic variants all appear to be within a single topologically associating domain. siRNA-knockdown of EMSY in organotypic culture leads to enhanced development of barrier function, reflecting increased expression of structural and functional proteins, including filaggrin and filaggrin-2, as well as long-chain ceramides. Conversely, overexpression of EMSY in keratinocytes leads to a reduction in markers of barrier formation. Skin biopsy samples from patients with AD show greater EMSY staining in the nucleus, which is consistent with an increased functional effect of this transcriptional control protein. Conclusion Our findings demonstrate an important role for EMSY in transcriptional regulation and skin barrier formation, supporting EMSY inhibition as a therapeutic approach.
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Affiliation(s)
- Martina S Elias
- Skin Research Group, Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom.
| | - Sheila C Wright
- Skin Research Group, Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom
| | - Judit Remenyi
- Skin Research Group, Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom
| | - James C Abbott
- Data Analysis/Bioinformatics Group, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Susan E Bray
- NHS Research Scotland Biorepository Tayside, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Christian Cole
- Data Analysis/Bioinformatics Group, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Sharon Edwards
- Department of Pathology, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Marek Gierlinski
- Data Analysis/Bioinformatics Group, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Mateusz Glok
- Skin Research Group, Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom
| | - John A McGrath
- St John's Institute of Dermatology, King's College London (Guy's Campus), London, United Kingdom
| | - William V Nicholson
- Skin Research Group, Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom
| | - Lavinia Paternoster
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Alan R Prescott
- Dundee Imaging Facility, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Sara Ten Have
- Centre for Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Phillip D Whitfield
- Lipidomics Research Facility, Division of Biomedical Sciences, University of the Highlands and Islands, Inverness, United Kingdom
| | - Angus I Lamond
- Centre for Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Sara J Brown
- Skin Research Group, Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom; Department of Dermatology, Ninewells Hospital, Dundee, United Kingdom.
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29
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Chacón-Solano E, León C, Díaz F, García-García F, García M, Escámez MJ, Guerrero-Aspizua S, Conti CJ, Mencía Á, Martínez-Santamaría L, Llames S, Pévida M, Carbonell-Caballero J, Puig-Butillé JA, Maseda R, Puig S, de Lucas R, Baselga E, Larcher F, Dopazo J, Del Río M. Fibroblast activation and abnormal extracellular matrix remodelling as common hallmarks in three cancer-prone genodermatoses. Br J Dermatol 2019; 181:512-522. [PMID: 30693469 PMCID: PMC6850467 DOI: 10.1111/bjd.17698] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Recessive dystrophic epidermolysis bullosa (RDEB), Kindler syndrome (KS) and xeroderma pigmentosum complementation group C (XPC) are three cancer-prone genodermatoses whose causal genetic mutations cannot fully explain, on their own, the array of associated phenotypic manifestations. Recent evidence highlights the role of the stromal microenvironment in the pathology of these disorders. OBJECTIVES To investigate, by means of comparative gene expression analysis, the role played by dermal fibroblasts in the pathogenesis of RDEB, KS and XPC. METHODS We conducted RNA-Seq analysis, which included a thorough examination of the differentially expressed genes, a functional enrichment analysis and a description of affected signalling circuits. Transcriptomic data were validated at the protein level in cell cultures, serum samples and skin biopsies. RESULTS Interdisease comparisons against control fibroblasts revealed a unifying signature of 186 differentially expressed genes and four signalling pathways in the three genodermatoses. Remarkably, some of the uncovered expression changes suggest a synthetic fibroblast phenotype characterized by the aberrant expression of extracellular matrix (ECM) proteins. Western blot and immunofluorescence in situ analyses validated the RNA-Seq data. In addition, enzyme-linked immunosorbent assay revealed increased circulating levels of periostin in patients with RDEB. CONCLUSIONS Our results suggest that the different causal genetic defects converge into common changes in gene expression, possibly due to injury-sensitive events. These, in turn, trigger a cascade of reactions involving abnormal ECM deposition and underexpression of antioxidant enzymes. The elucidated expression signature provides new potential biomarkers and common therapeutic targets in RDEB, XPC and KS. What's already known about this topic? Recessive dystrophic epidermolysis bullosa (RDEB), Kindler syndrome (KS) and xeroderma pigmentosum complementation group C (XPC) are three genodermatoses with high predisposition to cancer development. Although their causal genetic mutations mainly affect epithelia, the dermal microenvironment likely contributes to the physiopathology of these disorders. What does this study add? We disclose a large overlapping transcription profile between XPC, KS and RDEB fibroblasts that points towards an activated phenotype with high matrix-synthetic capacity. This common signature seems to be independent of the primary causal deficiency, but reflects an underlying derangement of the extracellular matrix via transforming growth factor-β signalling activation and oxidative state imbalance. What is the translational message? This study broadens the current knowledge about the pathology of these diseases and highlights new targets and biomarkers for effective therapeutic intervention. It is suggested that high levels of circulating periostin could represent a potential biomarker in RDEB.
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Affiliation(s)
- E Chacón-Solano
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
| | - C León
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
| | - F Díaz
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
| | - F García-García
- Bioinformatics and Biostatistics Unit, Centro de Investigación Príncipe Felipe (CIPF), Valencia, Spain
| | - M García
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain.,Epithelial Biomedicine Division, CIEMAT-CIBERER (U714), Madrid, Spain
| | - M J Escámez
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain.,Epithelial Biomedicine Division, CIEMAT-CIBERER (U714), Madrid, Spain
| | - S Guerrero-Aspizua
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain.,Epithelial Biomedicine Division, CIEMAT-CIBERER (U714), Madrid, Spain
| | - C J Conti
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
| | - Á Mencía
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
| | - L Martínez-Santamaría
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
| | - S Llames
- Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain.,Epithelial Biomedicine Division, CIEMAT-CIBERER (U714), Madrid, Spain.,Tissue Engineering Unit, Centro Comunitario Sangre y Tejidos (CCST), Oviedo, Spain
| | - M Pévida
- Tissue Engineering Unit, Centro Comunitario Sangre y Tejidos (CCST), Oviedo, Spain
| | - J Carbonell-Caballero
- Department of Computational Genomics, Centro de Investigación Príncipe Felipe (CIPF), Valencia, Spain
| | - J A Puig-Butillé
- Melanoma Unit, Hospital Clinic & IDIBAPS (Institut d'Investigacions Biomèdiques Agustí Pi i Sunyer), CIBERER (U726), Universitat de Barcelona, Barcelona, Spain
| | - R Maseda
- Department of Pediatric Dermatology, La Paz Hospital, Madrid, Spain
| | - S Puig
- Melanoma Unit, Hospital Clinic & IDIBAPS (Institut d'Investigacions Biomèdiques Agustí Pi i Sunyer), CIBERER (U726), Universitat de Barcelona, Barcelona, Spain
| | - R de Lucas
- Department of Pediatric Dermatology, La Paz Hospital, Madrid, Spain
| | - E Baselga
- Department of Pediatric Dermatology, Santa Creu I Sant Pau Hospital, Barcelona, Spain
| | - F Larcher
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain.,Epithelial Biomedicine Division, CIEMAT-CIBERER (U714), Madrid, Spain
| | - J Dopazo
- Clinical Bioinformatics Area, Fundación Progreso y Salud, CDCA, Hospital Virgen del Rocío, Sevilla, Spain.,Functional Genomics Node, INB-ELIXIR-es, FPS, Hospital Virgen del Rocío, Sevilla, Spain.,Bioinformatics in Rare Diseases (BiER-U715), CIBERER, FPS, Hospital Virgen del Rocío, Sevilla, Spain
| | - M Del Río
- Department of Bioengineering, Universidad Carlos III de Madrid, Madrid, Spain.,Regenerative Medicine and Tissue Engineering Group, Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain.,Epithelial Biomedicine Division, CIEMAT-CIBERER (U714), Madrid, Spain
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30
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Velasco D, Quílez C, Garcia M, del Cañizo JF, Jorcano JL. 3D human skin bioprinting: a view from the bio side. ACTA ACUST UNITED AC 2018. [DOI: 10.2217/3dp-2018-0008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Based on the 3D printing technologies and the concepts developed in tissue engineering during the last decades, 3D bioprinting is emerging as the most innovative and promising technology for the generation of human tissues and organs. In the case of skin bioprinting, thanks to the research process carried out during the last years, interfollicular skin has been printed with a structural and functional quality that paves the way for clinical and industrial applications. This review analyzes the present achievements and the future improvements that this area must bring about if bioprinted skin is to become widely used. We have made an effort to integrate the technological and the biological/biomedical sides of the subject.
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Affiliation(s)
- Diego Velasco
- Department of Bioengineering & Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain
- Department of Basic Research, Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Cristina Quílez
- Department of Bioengineering & Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain
| | - Marta Garcia
- Department of Bioengineering & Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain
- Department of Basic Research, Division of Epithelial Biomedicine, CIEMAT-CIBERER, Madrid, Spain
- Department of Basic Research, Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Juan F del Cañizo
- Department of Surgery, Universidad Complutense de Madrid, Experimental Medicine & Surgery, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Jose L Jorcano
- Department of Bioengineering & Aerospace Engineering, Universidad Carlos III de Madrid (UC3M), Spain
- Department of Basic Research, Division of Epithelial Biomedicine, CIEMAT-CIBERER, Madrid, Spain
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31
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Yan WC, Davoodi P, Vijayavenkataraman S, Tian Y, Ng WC, Fuh JY, Robinson KS, Wang CH. 3D bioprinting of skin tissue: From pre-processing to final product evaluation. Adv Drug Deliv Rev 2018; 132:270-295. [PMID: 30055210 DOI: 10.1016/j.addr.2018.07.016] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 07/17/2018] [Accepted: 07/20/2018] [Indexed: 02/07/2023]
Abstract
Bioprinted skin tissue has the potential for aiding drug screening, formulation development, clinical transplantation, chemical and cosmetic testing, as well as basic research. Limitations of conventional skin tissue engineering approaches have driven the development of biomimetic skin equivalent via 3D bioprinting. A key hope for bioprinting skin is the improved tissue authenticity over conventional skin equivalent construction, enabling the precise localization of multiple cell types and appendages within a construct. The printing of skin faces challenges broadly associated with general 3D bioprinting, including the selection of cell types and biomaterials, and additionally requires in vitro culture formats that allow for growth at an air-liquid interface. This paper provides a thorough review of current 3D bioprinting technologies used to engineer human skin constructs and presents the overall pipelines of designing a biomimetic artificial skin via 3D bioprinting from the design phase (i.e. pre-processing phase) through the tissue maturation phase (i.e. post-processing) and into final product evaluation for drug screening, development, and drug delivery applications.
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32
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Sheikholeslam M, Wright MEE, Jeschke MG, Amini-Nik S. Biomaterials for Skin Substitutes. Adv Healthc Mater 2018; 7:10.1002/adhm.201700897. [PMID: 29271580 PMCID: PMC7863571 DOI: 10.1002/adhm.201700897] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/13/2017] [Indexed: 12/13/2022]
Abstract
Patients with extensive burns rely on the use of tissue engineered skin due to a lack of sufficient donor tissue, but it is a challenge to identify reliable and economical scaffold materials and donor cell sources for the generation of a functional skin substitute. The current review attempts to evaluate the performance of the wide range of biomaterials available for generating skin substitutes, including both natural biopolymers and synthetic polymers, in terms of tissue response and potential for use in the operating room. Natural biopolymers display an improved cell response, while synthetic polymers provide better control over chemical composition and mechanical properties. It is suggested that not one material meets all the requirements for a skin substitute. Rather, a composite scaffold fabricated from both natural and synthetic biomaterials may allow for the generation of skin substitutes that meet all clinical requirements including a tailored wound size and type, the degree of burn, the patient age, and the available preparation technique. This review aims to be a valuable directory for researchers in the field to find the optimal material or combination of materials based on their specific application.
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Affiliation(s)
- Mohammadali Sheikholeslam
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
| | - Meghan E E Wright
- Institute of Biomaterials & Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Marc G Jeschke
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Saeid Amini-Nik
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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33
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Kirby GT, Michelmore A, Smith LE, Whittle JD, Short RD. Cell sheets in cell therapies. Cytotherapy 2018; 20:169-180. [DOI: 10.1016/j.jcyt.2017.11.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/28/2017] [Accepted: 11/03/2017] [Indexed: 12/21/2022]
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34
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Ter Horst B, Chouhan G, Moiemen NS, Grover LM. Advances in keratinocyte delivery in burn wound care. Adv Drug Deliv Rev 2018; 123:18-32. [PMID: 28668483 PMCID: PMC5764224 DOI: 10.1016/j.addr.2017.06.012] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/14/2017] [Accepted: 06/23/2017] [Indexed: 12/19/2022]
Abstract
This review gives an updated overview on keratinocyte transplantation in burn wounds concentrating on application methods and future therapeutic cell delivery options with a special interest in hydrogels and spray devices for cell delivery. To achieve faster re-epithelialisation of burn wounds, the original autologous keratinocyte culture and transplantation technique was introduced over 3 decades ago. Application types of keratinocytes transplantation have improved from cell sheets to single-cell solutions delivered with a spray system. However, further enhancement of cell culture, cell viability and function in vivo, cell carrier and cell delivery systems remain themes of interest. Hydrogels such as chitosan, alginate, fibrin and collagen are frequently used in burn wound care and have advantageous characteristics as cell carriers. Future approaches of keratinocyte transplantation involve spray devices, but optimisation of application technique and carrier type is necessary.
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Affiliation(s)
- Britt Ter Horst
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom; University Hospital Birmingham Foundation Trust, Burns Centre, Mindelsohn Way, B15 2TH Birmingham, United Kingdom
| | - Gurpreet Chouhan
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom
| | - Naiem S Moiemen
- University Hospital Birmingham Foundation Trust, Burns Centre, Mindelsohn Way, B15 2TH Birmingham, United Kingdom
| | - Liam M Grover
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom.
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35
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Goodarzi P, Falahzadeh K, Nematizadeh M, Farazandeh P, Payab M, Larijani B, Tayanloo Beik A, Arjmand B. Tissue Engineered Skin Substitutes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1107:143-188. [PMID: 29855826 DOI: 10.1007/5584_2018_226] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The fundamental skin role is to supply a supportive barrier to protect body against harmful agents and injuries. Three layers of skin including epidermis, dermis and hypodermis form a sophisticated tissue composed of extracellular matrix (ECM) mainly made of collagens and glycosaminoglycans (GAGs) as a scaffold, different cell types such as keratinocytes, fibroblasts and functional cells embedded in the ECM. When the skin is injured, depends on its severity, the majority of mentioned components are recruited to wound regeneration. Additionally, different growth factors like fibroblast growth factor (FGF), epidermal growth factor (EGF), vascular endothelial growth factor (VEGF) are needed to orchestrated wound healing process. In case of large surface area wounds, natural wound repair seems inefficient. Inspired by nature, scientists in tissue engineering field attempt to engineered constructs mimicking natural healing process to promote skin restoration in untreatable injuries. There are three main types of commercially available engineered skin substitutes including epidermal, dermal, and dermoepidermal. Each of them could be composed of scaffold, desired cell types or growth factors. These substitutes could have autologous, allogeneic, or xenogeneic origin. Moreover, they may be cellular or acellular. They are used to accelerate wound healing and recover normal skin functions with pain relief. Although there are a wide variety of commercially available skin substitutes, almost none of them considered as an ideal equivalents required for proper wound healing.
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Affiliation(s)
- Parisa Goodarzi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Khadijeh Falahzadeh
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehran Nematizadeh
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Parham Farazandeh
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Moloud Payab
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Akram Tayanloo Beik
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Babak Arjmand
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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36
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Menéndez-Menéndez Y, Otero-Hernández J, Vega JA, Pérez-Basterrechea M, Pérez-López S, Álvarez-Viejo M, Ferrero-Gutiérrez A. The role of bone marrow mononuclear cell-conditioned medium in the proliferation and migration of human dermal fibroblasts. Cell Mol Biol Lett 2017; 22:29. [PMID: 29270201 PMCID: PMC5735620 DOI: 10.1186/s11658-017-0055-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 11/10/2017] [Indexed: 12/14/2022] Open
Abstract
Background Several recent studies have demonstrated the great potential of bone marrow cells in regenerative medicine, not only for their ability to differentiate to match a damaged cell type, but also because they synthesize and release various growth factors and cytokines. We examined the effect of bone marrow cell-conditioned medium in the healing process, especially in terms of fibroblast proliferation and migration. Methods These in vitro studies consisted of co-culture (without direct contact) of dermal fibroblasts with mononuclear bone marrow cells and the use of conditioned medium obtained from these cultures in a scratch wound model. Results Mononuclear cells were found to increase the proliferation of fibroblasts, and the conditioned medium showed a stimulatory effect on the migration of fibroblasts. Conclusion When considered together with the observed increase in growth factor levels in conditioned medium, it appears that these cells act through a paracrine mechanism.
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Affiliation(s)
- Yolanda Menéndez-Menéndez
- Unidad de Coordinación de Trasplantes, Terapia Celular y Medicina Regenerativa, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Jesús Otero-Hernández
- Unidad de Coordinación de Trasplantes, Terapia Celular y Medicina Regenerativa, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Jose Antonio Vega
- Departamento de Morfología y Biología Celular, Universidad de Oviedo, Oviedo, Spain.,Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Temuco, Chile
| | - Marcos Pérez-Basterrechea
- Unidad de Coordinación de Trasplantes, Terapia Celular y Medicina Regenerativa, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Silvia Pérez-López
- Unidad de Coordinación de Trasplantes, Terapia Celular y Medicina Regenerativa, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - María Álvarez-Viejo
- Unidad de Coordinación de Trasplantes, Terapia Celular y Medicina Regenerativa, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Amaia Ferrero-Gutiérrez
- Unidad de Coordinación de Trasplantes, Terapia Celular y Medicina Regenerativa, Hospital Universitario Central de Asturias, Oviedo, Spain
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37
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Ramió-Lluch L, Cerrato S, Brazis P, Rabanal RM, Fondevila D, Puigdemont A. Proof of concept of a new autologous skin substitute for the treatment of deep wounds in dogs. Vet J 2017; 230:36-40. [PMID: 29208214 DOI: 10.1016/j.tvjl.2017.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 08/30/2017] [Accepted: 11/05/2017] [Indexed: 11/18/2022]
Abstract
Autologous skin grafts are effective for the repair of large skin wounds, but the availability of large amounts of skin is often limited. Through bioengineering, several autologous skin substitutes have been developed for use in human clinical practice. However, few skin substitutes are available for use in animals. The aim of this study was to develop and assess an engineered autologous skin substitute for the treatment of deep wounds in veterinary medicine. Canine keratinocytes and fibroblasts were isolated after double enzyme digestion from 8mm punch biopsies from four healthy Beagle dogs. Skin substitutes were constructed on a fibrin-based matrix and grafting capacity was assessed by xenografting in six athymic mice. Bioengineered autologous skin was assessed clinically in two dogs with large deep skin wounds. The canine skin construct was ready for use within 12-14days after the initial biopsy specimens were obtained. Grafting capacity in this model was confirmed by successful grafting of the construct in athymic mice. In both dogs, grafts were established and permanent epithelialisation occurred. Histological studies confirmed successful grafting. This full thickness skin substitute developed for the management of large skin defects in dogs appears to be a safe and useful tool for clinical veterinary practice. Further studies are needed to validate its efficacy for the treatment of deep wounds.
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Affiliation(s)
- L Ramió-Lluch
- UNIVET, S.L., Edifici Astrolabio, Avinguda Cerdanyola 92, 08173 Sant Cugat del Vallès, Barcelona, Spain.
| | - S Cerrato
- UNIVET, S.L., Edifici Astrolabio, Avinguda Cerdanyola 92, 08173 Sant Cugat del Vallès, Barcelona, Spain
| | - P Brazis
- UNIVET, S.L., Edifici Astrolabio, Avinguda Cerdanyola 92, 08173 Sant Cugat del Vallès, Barcelona, Spain
| | - R M Rabanal
- Department of Animal Medicine and Surgery, Veterinary Faculty, Edifici V, Universitat Autònoma de Barcelona, 08913 Bellaterra, Barcelona, Spain
| | - D Fondevila
- Department of Animal Medicine and Surgery, Veterinary Faculty, Edifici V, Universitat Autònoma de Barcelona, 08913 Bellaterra, Barcelona, Spain
| | - A Puigdemont
- Department of Pharmacology, Therapeutics and Toxicology, Facultat de Veterinària, Edifici V, Universitat Autònoma de Barcelona, 08913 Bellaterra, Barcelona, Spain
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38
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Salgado G, Ng YZ, Koh LF, Goh CS, Common JE. Human reconstructed skin xenografts on mice to model skin physiology. Differentiation 2017; 98:14-24. [DOI: 10.1016/j.diff.2017.09.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 01/17/2023]
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39
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Roh JL, Lee J, Jang H, Kim EH, Shin D. Use of oral mucosal cell sheets for accelerated oral surgical wound healing. Head Neck 2017; 40:394-401. [PMID: 28990282 DOI: 10.1002/hed.24968] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/12/2017] [Accepted: 09/03/2017] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND We developed a highly efficient in vitro-engineered mucosa equivalent using completely autologous mucosa and blood and investigated its feasibility and efficacy for oral surgical wound healing. METHODS Small oral mucosa samples were obtained from surgical patients, and keratinocytes and fibroblasts were primarily grown in media without animal products for generating 3D cell sheets. RESULTS Morphological characteristics of the cell sheets were comparable to those of human mucosa, although p63-positive cells were more numerous in cell sheets. In addition, cell sheets were flexible, expandable, and easy to handle or transfer. In further in vivo rat experiments with deep wounding of the buccal mucosa and soft tissues, controls had significantly thinner epithelium and thicker collagen densities than those with cell sheets. CONCLUSION Autologous cell sheets can be engineered in vitro from oral keratinocytes, fibroblasts, and fibrin, and can be used clinically to accelerate healing of oral soft tissue defects.
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Affiliation(s)
- Jong-Lyel Roh
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jaewang Lee
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyejin Jang
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eun Hye Kim
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Daiha Shin
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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40
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Girard D, Laverdet B, Buhé V, Trouillas M, Ghazi K, Alexaline MM, Egles C, Misery L, Coulomb B, Lataillade JJ, Berthod F, Desmoulière A. Biotechnological Management of Skin Burn Injuries: Challenges and Perspectives in Wound Healing and Sensory Recovery. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:59-82. [DOI: 10.1089/ten.teb.2016.0195] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Dorothée Girard
- University of Limoges, Myelin Maintenance and Peripheral Neuropathies (EA 6309), Faculties of Medicine and Pharmacy, Limoges, France
| | - Betty Laverdet
- University of Limoges, Myelin Maintenance and Peripheral Neuropathies (EA 6309), Faculties of Medicine and Pharmacy, Limoges, France
| | - Virginie Buhé
- University of Western Brittany, Laboratory of Neurosciences of Brest (EA 4685), Brest, France
| | - Marina Trouillas
- Paris Sud University, Unité mixte Inserm/SSA 1197, IRBA/CTSA/HIA Percy, École du Val de Grâce, Clamart, France
| | - Kamélia Ghazi
- Sorbonne University, Université de Technologie de Compiègne, CNRS UMR 7338 Biomechanics and Bioengineering, Centre de Recherche Royallieu, Compiègne, France
| | - Maïa M. Alexaline
- Paris Sud University, Unité mixte Inserm/SSA 1197, IRBA/CTSA/HIA Percy, École du Val de Grâce, Clamart, France
| | - Christophe Egles
- Sorbonne University, Université de Technologie de Compiègne, CNRS UMR 7338 Biomechanics and Bioengineering, Centre de Recherche Royallieu, Compiègne, France
| | - Laurent Misery
- University of Western Brittany, Laboratory of Neurosciences of Brest (EA 4685), Brest, France
| | - Bernard Coulomb
- Paris Sud University, Unité mixte Inserm/SSA 1197, IRBA/CTSA/HIA Percy, École du Val de Grâce, Clamart, France
| | - Jean-Jacques Lataillade
- Paris Sud University, Unité mixte Inserm/SSA 1197, IRBA/CTSA/HIA Percy, École du Val de Grâce, Clamart, France
| | - François Berthod
- Centre LOEX de l'Université Laval, Centre de recherche du CHU de Québec and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Alexis Desmoulière
- University of Limoges, Myelin Maintenance and Peripheral Neuropathies (EA 6309), Faculties of Medicine and Pharmacy, Limoges, France
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Cubo N, Garcia M, del Cañizo JF, Velasco D, Jorcano JL. 3D bioprinting of functional human skin: production and
in vivo
analysis. Biofabrication 2016; 9:015006. [DOI: 10.1088/1758-5090/9/1/015006] [Citation(s) in RCA: 254] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Zhou D, Cutlar L, Gao Y, Wang W, O’Keeffe-Ahern J, McMahon S, Duarte B, Larcher F, Rodriguez BJ, Greiser U, Wang W. The transition from linear to highly branched poly(β-amino ester)s: Branching matters for gene delivery. SCIENCE ADVANCES 2016; 2:e1600102. [PMID: 27386572 PMCID: PMC4928911 DOI: 10.1126/sciadv.1600102] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 05/26/2016] [Indexed: 05/13/2023]
Abstract
Nonviral gene therapy holds great promise but has not delivered treatments for clinical application to date. Lack of safe and efficient gene delivery vectors is the major hurdle. Among nonviral gene delivery vectors, poly(β-amino ester)s are one of the most versatile candidates because of their wide monomer availability, high polymer flexibility, and superior gene transfection performance both in vitro and in vivo. However, to date, all research has been focused on vectors with a linear structure. A well-accepted view is that dendritic or branched polymers have greater potential as gene delivery vectors because of their three-dimensional structure and multiple terminal groups. Nevertheless, to date, the synthesis of dendritic or branched polymers has been proven to be a well-known challenge. We report the design and synthesis of highly branched poly(β-amino ester)s (HPAEs) via a one-pot "A2 + B3 + C2"-type Michael addition approach and evaluate their potential as gene delivery vectors. We find that the branched structure can significantly enhance the transfection efficiency of poly(β-amino ester)s: Up to an 8521-fold enhancement in transfection efficiency was observed across 12 cell types ranging from cell lines, primary cells, to stem cells, over their corresponding linear poly(β-amino ester)s (LPAEs) and the commercial transfection reagents polyethyleneimine, SuperFect, and Lipofectamine 2000. Moreover, we further demonstrate that HPAEs can correct genetic defects in vivo using a recessive dystrophic epidermolysis bullosa graft mouse model. Our findings prove that the A2 + B3 + C2 approach is highly generalizable and flexible for the design and synthesis of HPAEs, which cannot be achieved by the conventional polymerization approach; HPAEs are more efficient vectors in gene transfection than the corresponding LPAEs. This provides valuable insight into the development and applications of nonviral gene delivery and demonstrates great prospect for their translation to a clinical environment.
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Affiliation(s)
- Dezhong Zhou
- School of Materials and Engineering, Tianjin University, Tianjin 300072, China
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
| | - Lara Cutlar
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
| | - Yongsheng Gao
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
| | - Wei Wang
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
| | - Jonathan O’Keeffe-Ahern
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
| | - Sean McMahon
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
| | - Blanca Duarte
- Cutaneous Diseases Modelling Unit, Division of Biomedicine, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid 28040, Spain
| | - Fernando Larcher
- Cutaneous Diseases Modelling Unit, Division of Biomedicine, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid 28040, Spain
| | - Brian J. Rodriguez
- School of Physics and Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland
| | - Udo Greiser
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
| | - Wenxin Wang
- School of Materials and Engineering, Tianjin University, Tianjin 300072, China
- Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin 4, Ireland
- Corresponding author.
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Bacakova M, Musilkova J, Riedel T, Stranska D, Brynda E, Zaloudkova M, Bacakova L. The potential applications of fibrin-coated electrospun polylactide nanofibers in skin tissue engineering. Int J Nanomedicine 2016; 11:771-89. [PMID: 26955273 PMCID: PMC4772944 DOI: 10.2147/ijn.s99317] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Fibrin plays an important role during wound healing and skin regeneration. It is often applied in clinical practice for treatment of skin injuries or as a component of skin substitutes. We prepared electrospun nanofibrous membranes made from poly(l-lactide) modified with a thin fibrin nanocoating. Fibrin surrounded the individual fibers in the membrane and also formed a thin fibrous mesh on several places on the membrane surface. The cell-free fibrin nanocoating remained stable in the cell culture medium for 14 days and did not change its morphology. On membranes populated with human dermal fibroblasts, the rate of fibrin degradation correlated with the degree of cell proliferation. The cell spreading, mitochondrial activity, and cell population density were significantly higher on membranes coated with fibrin than on nonmodified membranes, and this cell performance was further improved by the addition of ascorbic acid in the cell culture medium. Similarly, fibrin stimulated the expression and synthesis of collagen I in human dermal fibroblasts, and this effect was further enhanced by ascorbic acid. The expression of beta1-integrins was also improved by fibrin, and on pure polylactide membranes, it was slightly enhanced by ascorbic acid. In addition, ascorbic acid promoted deposition of collagen I in the form of a fibrous extracellular matrix. Thus, the combination of nanofibrous membranes with a fibrin nanocoating and ascorbic acid seems to be particularly advantageous for skin tissue engineering.
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Affiliation(s)
- Marketa Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic; Second Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jana Musilkova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Tomas Riedel
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | | | - Eduard Brynda
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Margit Zaloudkova
- Institute of Rock Structure and Mechanics, Czech Academy of Sciences, Prague, Czech Republic
| | - Lucie Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
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Jiang LW, Chen H, Lu H. Using human epithelial amnion cells in human de-epidermized dermis for skin regeneration. J Dermatol Sci 2015; 81:26-34. [PMID: 26596214 DOI: 10.1016/j.jdermsci.2015.10.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/14/2015] [Accepted: 10/27/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Human amniotic epithelial cells (hAECs) is a desirable reserve of stem cells. Human de-epidermized dermis (DED) retains basic tissue structure and parts of the basement membrane (BM) components at the acelluIar dermal surface, and provides a potential tool for skin regeneration. OBJECTIVE To evaluate the potential role of hAECs in skin regeneration, we used DED to perform organotypic culture of hAECs to develop organotypic skin. METHODS HAECs were isolated and cultured. Biological characteristics of hAECs were determined by immunocytochemistry and flow cytometry. To prepare DED, the epidermis was removed and then repeated freeze-thaw cycles. HAECs and fibroblast were seeded onto DED to perform the submerged culture for 3 days and then to be maintained at the air-liquid interface for 14 days to form organotypic culture. To identify whether the obtained DED retain the BM structure and components, the histological characteristics of DED and the BM were detected by immunohistochemistry. To evaluate whether the organotypic skin has similar histological characteristics with normal human skin, the marks of epidermal proliferation and differentiation and basement membrane component were detected by immunohistochemistry. Moreover, cell ultrastructure, cell-cell contact and ultrastructure of BM were examined under the transmission electron microscopy. RESULTS HAECs has stem-cell characteristics with strong pluripotent Oct-4 and embryonic marker SSEA-4 expression. DED has effectively cleansed the cell components and continuous distributions of laminin and collagen IV. The histological appearance of tissue-engineered skin in vitro has 4 to 9 continuous layers of stratified epithelium and is similar to normal human skin in morphology. Immunohistochemical studies revealed that proliferation and differentiation markers such as Ki67, CK19, CK14, CK10, filaggrin but not CK18 expressed similar pattern characteristics to normal human epidermis. In addition, Periodic acid-Schiff stain showed that a uniform red staining strip located at the epidermal-dermal junction. BM component proteins (type IV collagen and laminin) and cell adhesion protein (desmoglein) were detected by immunohistochemistry in organotypic skin. Ultrastructurally, desmosomes, hemidesmosomes and BM zone (BMZ) were observed in organotypic skin. CONCLUSIONS Our studies indicate that the hAECs is a promising stem cell source for tissue-engineered skin, and DED with hAECs is a potential application prospects in regenerative medicine.
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Affiliation(s)
- Lei-Wei Jiang
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, PR China; Department of Dermatology, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550001, PR China
| | - Hongduo Chen
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, PR China
| | - Hongguang Lu
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, PR China; Department of Dermatology, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550001, PR China.
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Alexaline MM, Trouillas M, Nivet M, Bourreau E, Leclerc T, Duhamel P, Martin MT, Doucet C, Fortunel NO, Lataillade JJ. Bioengineering a human plasma-based epidermal substitute with efficient grafting capacity and high content in clonogenic cells. Stem Cells Transl Med 2015; 4:643-54. [PMID: 25848122 DOI: 10.5966/sctm.2014-0155] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Accepted: 02/23/2015] [Indexed: 01/09/2023] Open
Abstract
UNLABELLED Cultured epithelial autografts (CEAs) produced from a small, healthy skin biopsy represent a lifesaving surgical technique in cases of full-thickness skin burn covering >50% of total body surface area. CEAs also present numerous drawbacks, among them the use of animal proteins and cells, the high fragility of keratinocyte sheets, and the immaturity of the dermal-epidermal junction, leading to heavy cosmetic and functional sequelae. To overcome these weaknesses, we developed a human plasma-based epidermal substitute (hPBES) for epidermal coverage in cases of massive burn, as an alternative to traditional CEA, and set up critical quality controls for preclinical and clinical studies. In this study, phenotypical analyses in conjunction with functional assays (clonal analysis, long-term culture, or in vivo graft) showed that our new substitute fulfills the biological requirements for epidermal regeneration. hPBES keratinocytes showed high potential for cell proliferation and subsequent differentiation similar to healthy skin compared with a well-known reference material, as ascertained by a combination of quality controls. This work highlights the importance of integrating relevant multiparameter quality controls into the bioengineering of new skin substitutes before they reach clinical development. SIGNIFICANCE This work involves the development of a new bioengineered epidermal substitute with pertinent functional quality controls. The novelty of this work is based on this quality approach.
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Affiliation(s)
- Maia M Alexaline
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Marina Trouillas
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Muriel Nivet
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Emilie Bourreau
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Thomas Leclerc
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Patrick Duhamel
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Michele T Martin
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Christelle Doucet
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Nicolas O Fortunel
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
| | - Jean-Jacques Lataillade
- Biomedical Research Institute of French Armies, INSERM U1197, Clamart, France; Celogos, Paris, France; Alternative Energies and Atomic Energy Commission, Institute of Cellular and Molecular Radiobiology, Laboratory of Genomics and Radiobiology of Keratinopoiesis, INSERM UMR 967, Evry, France; Burn Treatment Unit, Percy Hospital, Clamart, France; Plastic Surgery Department, Percy Hospital, Clamart, France
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Ma D, Chua AWC, Yang E, Teo P, Ting Y, Song C, Lane EB, Lee ST. Breast cancer resistance protein identifies clonogenic keratinocytes in human interfollicular epidermis. Stem Cell Res Ther 2015; 6:43. [PMID: 25881149 PMCID: PMC4425927 DOI: 10.1186/s13287-015-0032-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 09/10/2014] [Accepted: 03/02/2015] [Indexed: 12/17/2022] Open
Abstract
Introduction There is a practical need for the identification of robust cell-surface markers that can be used to enrich for living keratinocyte progenitor cells. Breast cancer resistance protein (ABCG2), a member of the ATP binding cassette (ABC) transporter family, is known to be a marker for stem/progenitor cells in many tissues and organs. Methods We investigated the expression of ABCG2 protein in normal human epidermis to evaluate its potential as a cell surface marker for identifying and enriching for clonogenic epidermal keratinocytes outside the pilosebaceous tract. Results Immunofluorescence and immunoblotting studies of human skin showed that ABCG2 is expressed in a subset of basal layer cells in the epidermis. Flow cytometry analysis showed approximately 2-3% of keratinocytes in non-hair-bearing epidermis expressing ABCG2; this population also expresses p63, β1 and α6 integrins and keratin 14, but not CD34, CD71, C-kit or involucrin. The ABCG2-positive keratinocytes showed significantly higher colony forming efficiency when co-cultured with mouse 3T3 feeder cells, and more extensive long-term proliferation capacity in vitro, than did ABCG2-negative keratinocytes. Upon clonal analysis, most of the freshly isolated ABCG2-positive keratinocytes formed holoclones and were capable of generating a stratified differentiating epidermis in organotypic culture models. Conclusions These data indicate that in skin, expression of the ABCG2 transporter is a characteristic of interfollicular keratinocyte progentior cells and suggest that ABCG2 may be useful for enriching keratinocyte stem cells in human interfollicular epidermis.
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Affiliation(s)
- Dongrui Ma
- Department of Plastic, Reconstructive & Aesthetic Surgery, Singapore General Hospital, Singapore, 168751, Singapore.
| | | | - Ennan Yang
- Department of Plastic, Reconstructive & Aesthetic Surgery, Singapore General Hospital, Singapore, 168751, Singapore.
| | - Peiyun Teo
- Department of Plastic, Reconstructive & Aesthetic Surgery, Singapore General Hospital, Singapore, 168751, Singapore.
| | - Yixin Ting
- Skin Bank, Burns Unit, Singapore General Hospital, Singapore, 168751, Singapore.
| | - Colin Song
- Department of Plastic, Reconstructive & Aesthetic Surgery, Singapore General Hospital, Singapore, 168751, Singapore.
| | | | - Seng Teik Lee
- Department of Plastic, Reconstructive & Aesthetic Surgery, Singapore General Hospital, Singapore, 168751, Singapore.
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Llames S, García-Pérez E, Meana Á, Larcher F, del Río M. Feeder Layer Cell Actions and Applications. TISSUE ENGINEERING PART B-REVIEWS 2015; 21:345-53. [PMID: 25659081 DOI: 10.1089/ten.teb.2014.0547] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Cultures of growth-arrested feeder cells have been used for years to promote cell proliferation, particularly with low-density inocula. Basically, feeder cells consist in a layer of cells unable to divide, which provides extracellular secretions to help another cell to proliferate. It differs from a coculture system because only one cell type is capable to proliferate. It is known that feeder cells support the growth of target cells by releasing growth factors to the culture media, but this is not the only way that feeder cells promote the growth of target cells. In this work, we discuss the different mechanisms of action of feeder cells, tackling questions as to why for some cell cultures the presence of feeder cell layers is mandatory, while in some other cases, the growth of target cells can be achieved with just a conditioned medium. Different treatments to avoid feeder cells to proliferate are revised, not only the classical treatments as mitomycin or γ-irradiation but also the not so common treatments as electric pulses or chemical fixation. Regenerative medicine has been gaining importance in recent years as a discipline that moves biomedical technology from the laboratory to the patients. In this context, human stem and pluripotent cells play an important role, but the presence of feeder cells is necessary for these progenitor cells to grow and differentiate. This review addresses recent specific applications, including those associated to the growth of embryonic and induced pluripotent stem cells. In addition, we have also dealt with safety issues, including feeder cell sources, as major factors of concern for clinical applications.
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Affiliation(s)
- Sara Llames
- 1 Tissue Engineering Unit, Centro Comunitario de Sangre y Tejidos del Principado de Asturias, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER U714) , Oviedo, Spain
| | - Eva García-Pérez
- 1 Tissue Engineering Unit, Centro Comunitario de Sangre y Tejidos del Principado de Asturias, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER U714) , Oviedo, Spain .,2 TERMEG, Department of Bioengineering, Universidad Carlos III de Madrid (UC3M) , Madrid, Spain
| | - Álvaro Meana
- 1 Tissue Engineering Unit, Centro Comunitario de Sangre y Tejidos del Principado de Asturias, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER U714) , Oviedo, Spain
| | - Fernando Larcher
- 2 TERMEG, Department of Bioengineering, Universidad Carlos III de Madrid (UC3M) , Madrid, Spain .,3 Epithelial Biomedicine Division, CIEMAT, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER U714) , Madrid, Spain
| | - Marcela del Río
- 2 TERMEG, Department of Bioengineering, Universidad Carlos III de Madrid (UC3M) , Madrid, Spain .,3 Epithelial Biomedicine Division, CIEMAT, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER U714) , Madrid, Spain .,4 Instituto de Investigaciones Fundación Jiménez Díaz , Madrid, Spain
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Production of an acellular matrix from amniotic membrane for the synthesis of a human skin equivalent. Cell Tissue Bank 2015; 16:411-23. [PMID: 25634343 DOI: 10.1007/s10561-014-9485-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 11/29/2014] [Indexed: 10/24/2022]
Abstract
Human amniotic membrane (HAM) has useful properties as a dermal matrix substitute. The objective of our work was to obtain, using different enzymatic or chemical treatments to eliminate cells, a scaffold of acellular HAM for later use as a support for the development of a skin equivalent. The HAM was separated from the chorion, incubated and cryopreserved. The membrane underwent different enzymatic and chemical treatments to eliminate the cells. Fibroblasts and keratinocytes were separately obtained from skin biopsies of patients following a sequential double digestion with first collagenase and then trypsin-EDTA (T/E). A skin equivalent was then constructed by seeding keratinocytes on the epithelial side and fibroblasts on the chorionic side of the decellularizated HAM. Histological, immunohistochemical, inmunofluorescent and molecular biology studies were performed. Treatment with 1% T/E at 37 °C for 30 min totally removed epithelial and mesenchymal cells. The HAM thus treated proved to be a good matrix to support adherence of cells and allowed the achievement of an integral and intact scaffold for development of a skin equivalent, which could be useful as a skin substitute for clinical use.
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Sánchez-Muñoz I, Granados R, Holguín Holgado P, García-Vela JA, Casares C, Casares M. The Use of Adipose Mesenchymal Stem Cells and Human Umbilical Vascular Endothelial Cells on a Fibrin Matrix for Endothelialized Skin Substitute. Tissue Eng Part A 2015; 21:214-23. [DOI: 10.1089/ten.tea.2013.0626] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
| | - Rosario Granados
- Department of Pathology, Hospital Universitario de Getafe, Madrid, Spain
| | | | | | - Celia Casares
- Tissue Bank, Hospital Universitario de Getafe, Madrid, Spain
| | - Miguel Casares
- Tissue Bank, Hospital Universitario de Getafe, Madrid, Spain
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Larcher F, Espada J, Díaz-Ley B, Jaén P, Juarranz A, Quintanilla M. New Experimental Models of Skin Homeostasis and Diseases. ACTAS DERMO-SIFILIOGRAFICAS 2015. [DOI: 10.1016/j.adengl.2014.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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