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Magne B, Ferland K, Savard É, Barbier MA, Morissette A, Larouche D, Beaudoin-Cloutier C, Germain L. The Human Neonatal Skin Fibroblast, an Available Cell Source for Tissue Production and Transplantation, Exhibits Low Risk of Immunogenicity In Vitro. Int J Mol Sci 2024; 25:6965. [PMID: 39000078 PMCID: PMC11241615 DOI: 10.3390/ijms25136965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/16/2024] Open
Abstract
The immunogenicity of allogeneic skin fibroblasts in transplantation has been controversial. Whether this controversy comes from a natural heterogeneity among fibroblast subsets or species-specific differences between human and mouse remains to be addressed. In this study, we sought to investigate whether fibroblasts derived from either adult or neonatal human skin tissues could induce different immune responses toward phagocytosis and T cell activation using in vitro co-culture models. Our results indicate that both phagocytosis and T cell proliferation are reduced in the presence of neonatal skin fibroblasts compared to adult skin fibroblasts. We also show that neonatal skin fibroblasts secrete paracrine factors that are responsible for reduced T cell proliferation. In addition, we show that neonatal skin fibroblasts express less class II human leukocyte antigen (HLA) molecules than adult skin fibroblasts after interferon gamma priming, which might also contribute to reduced T cell proliferation. In conclusion, this study supports the use of allogeneic neonatal skin fibroblasts as a readily available cell source for tissue production and transplantation to treat patients with severe injuries.
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Affiliation(s)
- Brice Magne
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
| | - Karel Ferland
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
| | - Étienne Savard
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
| | - Martin A. Barbier
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
| | - Amélie Morissette
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
| | - Danielle Larouche
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
| | - Chanel Beaudoin-Cloutier
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
- Burn Care Unit, CHU de Québec-Université Laval Hospital, Québec City, QC G1J 1Z4, Canada
| | - Lucie Germain
- Department of Surgery, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada
- CHU de Québec-Université Laval Research Centre, Québec City, QC G1E 6W2, Canada
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Lee KS, Kim Y, Lee JH, Shon S, Kim A, Pham AVQ, Kim C, Kim DH, Kim YK, Cho EG. Human Probiotic Lactobacillus paracasei-Derived Extracellular Vesicles Improve Tumor Necrosis Factor-α-Induced Inflammatory Phenotypes in Human Skin. Cells 2023; 12:2789. [PMID: 38132109 PMCID: PMC10741892 DOI: 10.3390/cells12242789] [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: 10/06/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Lactic acid bacteria (LAB), a probiotic, provide various health benefits. We recently isolated a new Lactobacillus paracasei strain with strong anti-inflammatory effects under lipopolysaccharide-induced conditions and proposed a new mode of action-augmenting the endoplasmic reticulum stress pathway for anti-inflammatory functions in host cells. The beneficial effects of the L. paracasei strains on the skin have been described; however, the effects of L. paracasei-derived extracellular vesicles (LpEVs) on the skin are poorly understood. Herein, we investigated whether LpEVs can improve inflammation-mediated skin phenotypes by determining their effects on primary human skin cells and a three-dimensional (3D) full-thickness human skin equivalent under tumor necrosis factor (TNF)-α-challenged inflammatory conditions. LpEVs were efficiently taken up by the human skin cells and were much less cytotoxic to host cells than bacterial lysates. Furthermore, low LpEV concentrations efficiently restored TNF-α-induced cellular phenotypes, resulting in increased cell proliferation and collagen synthesis, but decreased inflammatory factor levels (matrix metalloproteinase 1, interleukin 6, and interleukin 8) in the human dermal fibroblasts, which was comparable to that of retinoic acid, a representative antiaging compound. The beneficial effects of LpEVs were validated in a 3D full-thickness human skin equivalent model. LpEV treatment remarkably restored the TNF-α-induced epidermal malformation, abnormal proliferation of keratinocytes in the basal layer, and reduction in dermal collagen synthesis. Additionally, LpEVs penetrated and reached the deepest dermal layer within 24 h when overlaid on top of a 3D full-thickness human skin equivalent. Furthermore, they possessed superior antioxidant capacity compared with the human cell-derived EVs. Taken together, the anti-inflammatory probiotic LpEVs can be attractive antiaging and antioxidant substances for improving inflammation-induced skin phenotypes and disorders.
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Affiliation(s)
- Kwang-Soo Lee
- H&B Science Center, CHA Meditech Co., Ltd., Seongnam 13488, Republic of Korea
| | - Yunsik Kim
- Consumer Health 2 Center, CHA Advanced Research Institute, Bundang CHA Medical Center, Seongnam 13488, Republic of Korea
| | - Jin Hee Lee
- Consumer Health 2 Center, CHA Advanced Research Institute, Bundang CHA Medical Center, Seongnam 13488, Republic of Korea
| | - Suji Shon
- Department of Dermatology, Bundang CHA Medical Center, School of Medicine, CHA University, Seongnam 13488, Republic of Korea
| | - Aram Kim
- Department of Dermatology, Bundang CHA Medical Center, School of Medicine, CHA University, Seongnam 13488, Republic of Korea
| | - An Vuong Quynh Pham
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Chungho Kim
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Dong Hyun Kim
- Department of Dermatology, Bundang CHA Medical Center, School of Medicine, CHA University, Seongnam 13488, Republic of Korea
| | | | - Eun-Gyung Cho
- H&B Science Center, CHA Meditech Co., Ltd., Seongnam 13488, Republic of Korea
- Consumer Health 2 Center, CHA Advanced Research Institute, Bundang CHA Medical Center, Seongnam 13488, Republic of Korea
- Department of Life Science, General Graduate School, CHA University, Pocheon 11160, Republic of Korea
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Sierra-Sánchez Á, Magne B, Savard E, Martel C, Ferland K, Barbier MA, Demers A, Larouche D, Arias-Santiago S, Germain L. In vitro comparison of human plasma-based and self-assembled tissue-engineered skin substitutes: two different manufacturing processes for the treatment of deep and difficult to heal injuries. BURNS & TRAUMA 2023; 11:tkad043. [PMID: 37908563 PMCID: PMC10615253 DOI: 10.1093/burnst/tkad043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/13/2023] [Accepted: 07/21/2023] [Indexed: 11/02/2023]
Abstract
Background The aim of this in vitro study was to compare side-by-side two models of human bilayered tissue-engineered skin substitutes (hbTESSs) designed for the treatment of severely burned patients. These are the scaffold-free self-assembled skin substitute (SASS) and the human plasma-based skin substitute (HPSS). Methods Fibroblasts and keratinocytes from three humans were extracted from skin biopsies (N = 3) and cells from the same donor were used to produce both hbTESS models. For SASS manufacture, keratinocytes were seeded over three self-assembled dermal sheets comprising fibroblasts and the extracellular matrix they produced (n = 12), while for HPSS production, keratinocytes were cultured over hydrogels composed of fibroblasts embedded in either plasma as unique biomaterial (Fibrin), plasma combined with hyaluronic acid (Fibrin-HA) or plasma combined with collagen (Fibrin-Col) (n/biomaterial = 9). The production time was 46-55 days for SASSs and 32-39 days for HPSSs. Substitutes were characterized by histology, mechanical testing, PrestoBlue™-assay, immunofluorescence (Ki67, Keratin (K) 10, K15, K19, Loricrin, type IV collagen) and Western blot (type I and IV collagens). Results The SASSs were more resistant to tensile forces (p-value < 0.01) but less elastic (p-value < 0.001) compared to HPSSs. A higher number of proliferative Ki67+ cells were found in SASSs although their metabolic activity was lower. After epidermal differentiation, no significant difference was observed in the expression of K10, K15, K19 and Loricrin. Overall, the production of type I and type IV collagens and the adhesive strength of the dermal-epidermal junction was higher in SASSs. Conclusions This study demonstrates, for the first time, that both hbTESS models present similar in vitro biological characteristics. However, mechanical properties differ and future in vivo experiments will aim to compare their wound healing potential.
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Affiliation(s)
- Álvaro Sierra-Sánchez
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- Unidad de Producción Celular e Ingeniería Tisular (UPCIT), Virgen de las Nieves University Hospital, ibs. GRANADA, Andalusian Network for the design and translation of Advanced Therapies, Av. de las Fuerzas Armadas, Nº2, 4ª Planta Ed. de Gobierno, 18014, Granada, Spain
| | - Brice Magne
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
| | - Etienne Savard
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
| | - Christian Martel
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
| | - Karel Ferland
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
| | - Martin A Barbier
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
| | - Anabelle Demers
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
| | - Danielle Larouche
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
| | - Salvador Arias-Santiago
- Unidad de Producción Celular e Ingeniería Tisular (UPCIT), Virgen de las Nieves University Hospital, ibs. GRANADA, Andalusian Network for the design and translation of Advanced Therapies, Av. de las Fuerzas Armadas, Nº2, 4ª Planta Ed. de Gobierno, 18014, Granada, Spain
- Department of Dermatology, Virgen de las Nieves University Hospital, Av. Madrid, Nº11–15, 18012, Granada, Spain
- Department of Dermatology, Faculty of Medicine, University of Granada, Av. de la Investigación, Nº11, 18016, Granada, Spain
| | - Lucie Germain
- LOEX Tissue Engineering Laboratory and Department of Surgery, Faculty of Medicine, Université Laval, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
- CHU de Québec – Université Laval Research Center, Division of Regenerative Medicine, 1401 18e rue, Québec (Québec) G1J 1Z4, Canada
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Vaporidou N, Peroni F, Restelli A, Jalil MN, Dye JF. Artificial Skin Therapies; Strategy for Product Development. Adv Wound Care (New Rochelle) 2023; 12:574-600. [PMID: 36680749 DOI: 10.1089/wound.2022.0050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Significance: Tissue-engineered artificial skin for clinical reconstruction can be regarded as an established practice. Bi-layered skin equivalents are available as established allogenic or autologous therapy, and various acellular skin replacements can support tissue repair. Moreover, there is considerable commonality between the skin and other soft tissue reconstruction products. This article presents an attempt to create a comprehensive global landscape review of advanced replacement materials and associated strategies for skin and soft tissue reconstruction. Recent Advances: There has been rapid growth in the number of commercial and pre-commercial products over the past decade. In this survey, 263 base products for advanced skin therapy have been identified, across 8 therapeutic categories, giving over 350 products in total. The largest market is in the United States, followed by the E.U. zone. However, despite these advances, and the investment of resources in each product development, there are key issues concerning the clinical efficacy, cost-benefit of products, and clinical impact. Each therapeutic strategy has relative merits and limitations. Critical Issues: A critical consideration in developing and evaluating products is the therapeutic modality, associated regulatory processes, and the potential for clinical adoption geographically, determined by regulatory territory, intellectual property, and commercial distribution factors. The survey identifies an opportunity for developments that improve basic efficacy or cost-benefit. Future Directions: The economic pressures on health care systems, compounded by the demands of our increasingly ageing population, and the imperative to distribute effective health care, create an urgent global need for effective and affordable products.
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Affiliation(s)
- Nephelie Vaporidou
- Division of Surgery and Interdisciplinary Sciences, University College London, London, United Kingdom
- Oxartis Ltd., Oxford, United Kingdom
| | | | | | - M Nauman Jalil
- Oxartis Ltd., Oxford, United Kingdom
- MADE Cymru, University of Wales Trinity Saint David, Swansea, Wales, United Kingdom
| | - Julian F Dye
- Oxartis Ltd., Oxford, United Kingdom
- Research Strategy and Development, University College London, London, United Kingdom
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Ghribi N, Guay-Bégin AA, Bilem I, Chevallier P, Auger FA, Ruel J, Laroche G. Peptide grafting on intraosseous transcutaneous amputation prostheses to promote sealing with skin cells: Potential to limit infections. J Biomed Mater Res A 2023; 111:688-700. [PMID: 36680491 DOI: 10.1002/jbm.a.37505] [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: 10/13/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/22/2023]
Abstract
The long-term success of intraosseous transcutaneous amputation prostheses (ITAPs) mainly relies on dermal attachment of skin cells to the implant. Otherwise, bacteria can easily penetrate through the interface between the implant and the skin. Therefore, infection at this implant/skin interface remains a significant complication in orthopedic surgeries in which these prostheses are required. Two main strategies were investigated to prevent these potential infection problems which consist in either establishing a strong sealing at the skin/implant interface or on eradicating infections by killing bacteria. In this work, two adhesion peptides, either KRGDS or KYIGSR and one antimicrobial peptide, Magainin 2 (Mag 2), were covalently grafted via phosphonate anchor arms to the surface of the Ti6Al4V ELI (extra low interstitials) material, commonly used to manufacture ITAPs. X-ray photoelectron spectroscopy, contact angle, and confocal microscopy analyses enabled to validate the covalent and stable grafting of these three peptides. Dermal fibroblasts cultures on bare Ti6Al4V ELI surfaces and functionalized ones displayed a good cell adhesion and proliferation on all samples. However, cell spreading and viability appeared to be improved on grafted surfaces, especially for those conjugated with KRGDS and Mag 2. Moreover, the dermal sheet attachment, was significantly higher on surfaces functionalized with Mag 2 as compared to the other surfaces. Therefore, the surface functionalization with the antimicrobial peptide Mag 2 seems to be the best approach for the targeted application, as it could play a dual role, inducing a strong skin adhesion while limiting infections on Ti6Al4V ELI materials.
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Affiliation(s)
- Nawel Ghribi
- Laboratoire d'ingénierie de surface (LIS), Centre de Recherche du CHU de Québec-Université Laval, Hôpital Saint-François d'Assise, Québec, Québec, Canada
- Département de génie des mines, de la métallurgie et des matériaux, Centre de recherche sur les Matériaux Avancés, Université Laval, Québec, Québec, Canada
| | - Andrée-Anne Guay-Bégin
- Laboratoire d'ingénierie de surface (LIS), Centre de Recherche du CHU de Québec-Université Laval, Hôpital Saint-François d'Assise, Québec, Québec, Canada
- Département de génie des mines, de la métallurgie et des matériaux, Centre de recherche sur les Matériaux Avancés, Université Laval, Québec, Québec, Canada
| | - Ibrahim Bilem
- Laboratoire d'ingénierie de surface (LIS), Centre de Recherche du CHU de Québec-Université Laval, Hôpital Saint-François d'Assise, Québec, Québec, Canada
- Département de génie des mines, de la métallurgie et des matériaux, Centre de recherche sur les Matériaux Avancés, Université Laval, Québec, Québec, Canada
| | - Pascale Chevallier
- Laboratoire d'ingénierie de surface (LIS), Centre de Recherche du CHU de Québec-Université Laval, Hôpital Saint-François d'Assise, Québec, Québec, Canada
- Département de génie des mines, de la métallurgie et des matériaux, Centre de recherche sur les Matériaux Avancés, Université Laval, Québec, Québec, Canada
| | - François A Auger
- Centre de Recherche du CHU de Québec-Université Laval, LOEX, Québec, Québec, Canada
| | - Jean Ruel
- Département de Génie mécanique, Université Laval, Québec, Québec, Canada
| | - Gaétan Laroche
- Laboratoire d'ingénierie de surface (LIS), Centre de Recherche du CHU de Québec-Université Laval, Hôpital Saint-François d'Assise, Québec, Québec, Canada
- Département de génie des mines, de la métallurgie et des matériaux, Centre de recherche sur les Matériaux Avancés, Université Laval, Québec, Québec, Canada
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Mohammad-Pour N, Moghimi V, Bidkhori HR, Momeni-Moghaddam M, Naderi-Meshkin H. Comparing the Effects of Two Cryoprotectant Protocols, Dimethyl-Sulfoxide (DMSO) and Glycerol, on the Recovery Rate of Cultured Keratinocytes on Amniotic Membrane. INT J LOW EXTR WOUND 2023:15347346231155751. [PMID: 36794512 DOI: 10.1177/15347346231155751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Background: Off-the-shelf supply of viable engineered tissue is critical for effective and fast treatment of life-threatening injuries such as deep burns. An expanded keratinocyte sheet on the human amniotic membrane (KC sheet-HAM) is a beneficial tissue-engineering product for wound healing. To access an on-hand supply for the widespread application and overcome the time-consuming process, it is necessary to develop a cryopreservation protocol that guarantees the higher recovery of viable keratinocyte sheets after freeze-thawing. This research aimed to compare the recovery rate of KC sheet-HAM after cryopreservation by dimethyl-sulfoxide (DMSO) and glycerol. Methods: Amniotic membrane was decellularized with trypsin, and keratinocytes were cultured on it to form a multilayer, flexible, easy-to-handle KC sheet-HAM. The effects of 2 different cryoprotectants were investigated by histological analysis, live-dead staining, and proliferative capacity assessments before and after cryopreservation. Results: KCs well adhered and proliferated on the decellularized amniotic membrane and successfully represented 3 to 4 stratified layers of epithelialization after 2 to 3 weeks culture period; making it easy to cut, transfer, and cryopreserve. However, viability and proliferation assay indicated that both DMSO and glycerol cryosolutions have detrimental effects on KCs, and KCs-sheet HAM could not recover to the control level after 8 days of culture post-cryo. The KC sheet lost its stratified multilayer nature on AM, and sheet layers were reduced in both cryo-groups compared to the control. Conclusion: Expanding keratinocytes on the decellularized amniotic membrane as a multilayer sheet made a viable easy-to-handle sheet, nonetheless cryopreservation reduced viability and affected histological structure after thawing. Although some viable cells were detectable, our research highlighted the need for a better cryoprotectant protocol other than DMSO and glycerol, specific for the successful banking of viable tissue constructs.
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Affiliation(s)
- Najmeh Mohammad-Pour
- Department of Biology, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran
- Stem Cells and Regenerative Medicine Department, Academic Center for Education, Culture and Research (ACECR)-Khorasan Razavi, Mashhad, Iran
| | - Vahid Moghimi
- Department of Biology, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran
- Stem Cells and Regenerative Medicine Department, Academic Center for Education, Culture and Research (ACECR)-Khorasan Razavi, Mashhad, Iran
| | - Hamid Reza Bidkhori
- Stem Cells and Regenerative Medicine Department, Academic Center for Education, Culture and Research (ACECR)-Khorasan Razavi, Mashhad, Iran
- Blood Borne Infections Research Center, Academic Center for Education, Culture and Research (ACECR)-Khorasan Razavi, Mashhad, Iran
| | - Madjid Momeni-Moghaddam
- Stem Cells and Regenerative Medicine Department, Academic Center for Education, Culture and Research (ACECR)-Khorasan Razavi, Mashhad, Iran
| | - Hojjat Naderi-Meshkin
- Stem Cells and Regenerative Medicine Department, Academic Center for Education, Culture and Research (ACECR)-Khorasan Razavi, Mashhad, Iran
- Wellcome-Wolfson Institute for Experimental Medicine, Belfast, UK
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A Newly Developed Chemically Defined Serum-Free Medium Suitable for Human Primary Keratinocyte Culture and Tissue Engineering Applications. Int J Mol Sci 2023; 24:ijms24031821. [PMID: 36768144 PMCID: PMC9915451 DOI: 10.3390/ijms24031821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/31/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
In our experience, keratinocytes cultured in feeder-free conditions and in commercially available defined and serum-free media cannot be as efficiently massively expanded as their counterparts grown in conventional bovine serum-containing medium, nor can they properly form a stratified epidermis in a skin substitute model. We thus tested a new chemically defined serum-free medium, which we developed for massive human primary keratinocyte expansion and skin substitute production. Our medium, named Surge Serum-Free Medium (Surge SFM), was developed to be used alongside a feeder layer. It supports the growth of keratinocytes freshly isolated from a skin biopsy and cryopreserved primary keratinocytes in cultured monolayers over multiple passages. We also show that keratin-19-positive epithelial stem cells are retained through serial passaging in Surge SFM cultures. Transcriptomic analyses suggest that gene expression is similar between keratinocytes cultured with either Surge SFM or the conventional serum-containing medium. Additionally, Surge SFM can be used to produce bilayered self-assembled skin substitutes histologically similar to those produced using serum-containing medium. Furthermore, these substitutes were grafted onto athymic mice and persisted for up to six months. In conclusion, our new chemically defined serum-free keratinocyte culture medium shows great promise for basic research and clinical applications.
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8
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Dagher J, Arcand C, Auger FA, Germain L, Moulin VJ. The Self-Assembled Skin Substitute History: Successes, Challenges, and Current Treatment Indications. J Burn Care Res 2023; 44:S57-S64. [PMID: 36567476 PMCID: PMC9790893 DOI: 10.1093/jbcr/irac074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The self-assembled skin substitute (SASS) is an autologous bilayered skin substitute designed by our academic laboratory, the Laboratoire d'Organogenèse Expérimentale (LOEX) to offer definitive treatment for patients lacking donor sites (unwounded skin) to cover their burn wounds. This product shows skin-like attributes, such as an autologous dermal and epidermal layer, and is easily manipulable by the surgeon. Its development stems from the need for skin replacement in high total body surface area burned survivors presenting few donor sites for standard split-thickness skin grafting. This review aims to present the history, successes, challenges, and current therapeutic indications of this skin substitute. We review the product's development history, before discussing current production techniques, as well as clinical use. The progression observed since the initial SASS production technique described in 1999, up to the most recent technique expresses significant advances made in the technical aspect of our product, such as the reduction of the production time. We then explore the efficacy and benefits of SASS over existing skin substitutes and discuss the outcomes of a recent study focusing on the successful treatment of 14 patients. Moreover, an ongoing cross-Canada study is further assessing the product's safety and efficacy. The limitations and technical challenges of SASS are also discussed.
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Affiliation(s)
- Jason Dagher
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval (LOEX), Québec, Canada
- Centre de Recherche du CHU de Québec-Université Laval, Québec, Canada
- Département de chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Charles Arcand
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval (LOEX), Québec, Canada
- Centre de Recherche du CHU de Québec-Université Laval, Québec, Canada
- Département de chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
| | - François A Auger
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval (LOEX), Québec, Canada
- Centre de Recherche du CHU de Québec-Université Laval, Québec, Canada
- Département de chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Lucie Germain
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval (LOEX), Québec, Canada
- Centre de Recherche du CHU de Québec-Université Laval, Québec, Canada
- Département de chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Véronique J Moulin
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval (LOEX), Québec, Canada
- Centre de Recherche du CHU de Québec-Université Laval, Québec, Canada
- Département de chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
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9
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Di Cristo L, Sabella S. Cell Cultures at the Air-Liquid Interface and Their Application in Cancer Research. Methods Mol Biol 2023; 2645:41-64. [PMID: 37202611 DOI: 10.1007/978-1-0716-3056-3_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Air-liquid interface (ALI) cell cultures are considered a valid tool for the replacement of animals in biomedical research. By mimicking crucial features of the human in vivo epithelial barriers (e.g., lung, intestine, and skin), ALI cell cultures enable proper structural architectures and differentiated functions of normal and diseased tissue barriers. Thereby, ALI models realistically resemble tissue conditions and provide in vivo-like responses. Since their implementation, they are routinely used in several applications, from toxicity testing to cancer research, receiving an appreciable level of acceptance (in some cases a regulatory acceptance) as attractive testing alternatives to animals. In this chapter, an overview of the ALI cell cultures will be presented together with their application in cancer cell culture, highlighting the potential advantages and disadvantages of the model.
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Affiliation(s)
- Luisana Di Cristo
- D3 PharmaChemistry, Nanoregulatory Group, Italian Institute of Technology, Genoa, Italy.
| | - Stefania Sabella
- D3 PharmaChemistry, Nanoregulatory Group, Italian Institute of Technology, Genoa, Italy
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10
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Mok BR, Shon SJ, Kim AR, Simard-Bisson C, Martel I, Germain L, Kim DH, Shin JU. Structural and Functional Validation of a Full-Thickness Self-Assembled Skin Equivalent for Disease Modeling. Pharmaceutics 2022; 14:1211. [PMID: 35745784 PMCID: PMC9231172 DOI: 10.3390/pharmaceutics14061211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 11/24/2022] Open
Abstract
Recently, various types of in vitro-reconstructed 3D skin models have been developed for drug testing and disease modeling. Herein, we structurally and functionally validated a self-assembled reconstructed skin equivalent (RSE) and developed an IL-17a-induced in vitro psoriasis-like model using a self-assembled RSE. The tissue engineering approach was used to construct the self-assembled RSE. The dermal layer was generated using fibroblasts secreting their own ECM, and the epidermal layer was reconstructed by seeding keratinocytes on the dermal layer. To generate the psoriatic model, IL-17A was added to the culture medium during the air-liquid interface culture period. Self-assembled RSE resulted in a fully differentiated epidermal layer, a well-established basement membrane, and dermal collagen deposition. In addition, self-assembled RSE was tested for 20 reference chemicals according to the Performance Standard of OECD TG439 and showed overall sensitivity, specificity, and accuracy of 100%, 90%, and 95%, respectively. The IL-17a-treated psoriatic RSE model exhibited psoriatic epidermal characteristics, such as epidermal hyperproliferation, parakeratosis, and increased expression of KRT6, KRT17, hBD2, and S100A9. Thus, our results suggest that a self-assembled RSE that structurally and functionally mimics the human skin has a great potential for testing various drugs or cosmetic ingredients and modeling inflammatory skin diseases.
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Affiliation(s)
- Bo Ram Mok
- Department of Biomedical Science, CHA University, Seongnam 13488, Korea; (B.R.M.); (S.-J.S.); (A.R.K.)
| | - Su-Ji Shon
- Department of Biomedical Science, CHA University, Seongnam 13488, Korea; (B.R.M.); (S.-J.S.); (A.R.K.)
| | - A Ram Kim
- Department of Biomedical Science, CHA University, Seongnam 13488, Korea; (B.R.M.); (S.-J.S.); (A.R.K.)
| | - Carolyne Simard-Bisson
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, and Department of Surgery, Faculty of Medicine, Université Laval, CHU de Québec-Université Laval Research Centre, Québec, QC G1J1Z4, Canada; (C.S.-B.); (I.M.); (L.G.)
| | - Israël Martel
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, and Department of Surgery, Faculty of Medicine, Université Laval, CHU de Québec-Université Laval Research Centre, Québec, QC G1J1Z4, Canada; (C.S.-B.); (I.M.); (L.G.)
| | - Lucie Germain
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, and Department of Surgery, Faculty of Medicine, Université Laval, CHU de Québec-Université Laval Research Centre, Québec, QC G1J1Z4, Canada; (C.S.-B.); (I.M.); (L.G.)
| | - Dong Hyun Kim
- Department of Dermatology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam 13497, Korea;
| | - Jung U Shin
- Department of Dermatology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam 13497, Korea;
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11
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Urciuolo F, Passariello R, Imparato G, Casale C, Netti PA. Bioengineered Wound Healing Skin Models: The Role of Immune Response and Endogenous ECM to Fully Replicate the Dynamic of Scar Tissue Formation In Vitro. Bioengineering (Basel) 2022; 9:bioengineering9060233. [PMID: 35735476 PMCID: PMC9219817 DOI: 10.3390/bioengineering9060233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 12/27/2022] Open
Abstract
The healing of deep skin wounds is a complex phenomenon evolving according with a fine spatiotemporal regulation of different biological events (hemostasis, inflammation, proliferation, remodeling). Due to the spontaneous evolution of damaged human dermis toward a fibrotic scar, the treatment of deep wounds still represents a clinical concern. Bioengineered full-thickness skin models may play a crucial role in this direction by providing a deep understanding of the process that leads to the formation of fibrotic scars. This will allow (i) to identify new drugs and targets/biomarkers, (ii) to test new therapeutic approaches, and (iii) to develop more accurate in silico models, with the final aim to guide the closure process toward a scar-free closure and, in a more general sense, (iv) to understand the mechanisms involved in the intrinsic and extrinsic aging of the skin. In this work, the complex dynamic of events underlaying the closure of deep skin wound is presented and the engineered models that aim at replicating such complex phenomenon are reviewed. Despite the complexity of the cellular and extracellular events occurring during the skin wound healing the gold standard assay used to replicate such a process is still represented by planar in vitro models that have been largely used to identify the key factors regulating the involved cellular processes. However, the lack of the main constituents of the extracellular matrix (ECM) makes these over-simplistic 2D models unable to predict the complexity of the closure process. Three-dimensional bioengineered models, which aim at recreating the closure dynamics of the human dermis by using exogenous biomaterials, have been developed to fill such a gap. Although interesting mechanistic effects have been figured out, the effect of the inflammatory response on the ECM remodelling is not replicated yet. We discuss how more faithful wound healing models can be obtained by creating immunocompetent 3D dermis models featuring an endogenous ECM.
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Affiliation(s)
- Francesco Urciuolo
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy;
- Correspondence:
| | - Roberta Passariello
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy;
- Center for Advanced Biomaterials for HealthCare@CRIB Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Naples, Italy;
| | - Giorgia Imparato
- Center for Advanced Biomaterials for HealthCare@CRIB Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Naples, Italy;
| | - Costantino Casale
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
| | - Paolo Antonio Netti
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy;
- Center for Advanced Biomaterials for HealthCare@CRIB Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Naples, Italy;
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12
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Mok BR, Kim AR, Baek SH, Ahn JH, Seok SH, Shin JU, Kim DH. Profilin-1 prevents psoriasis pathogenesis through IκBζ regulation. J Invest Dermatol 2022; 142:2455-2463.e9. [PMID: 35148999 DOI: 10.1016/j.jid.2022.01.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 12/14/2022]
Abstract
Profilin-1 (PFN-1) is an actin-binding protein that regulates actin polymerization, cell proliferation, apoptosis, angiogenesis, and carcinogenesis. Its dysregulation has been reported in diverse pathologic diseases; however, the role of PFN-1 in psoriasis has not yet been elucidated. In this study, we demonstrate that PFN-1 expression is increased in both skin and serum of patients with psoriasis. PFN-1 was markedly expressed in the epidermis of psoriatic lesions and its expression positively correlated with psoriasis severity. IL-17A treatment of keratinocytes increased the PFN-1 expression, whereas TNF-α induced the PFN-1 expression and secretion. In addition, knockdown of PFN-1 with shRNA resulted in an altered expression of psoriasis-associated inflammatory markers, HBD-2, S100A7, S100A9, and Ki67, and recombinant PFN-1 suppressed the IL-17A-induced inflammatory response in keratinocytes. Interestingly, recombinant PFN-1 also suppressed IL-17A-induced IκBζ, an important player in immune response in psoriasis. Collectively, our results show that PFN-1 acts as a negative regulator of psoriatic inflammation through suppression of IκBζ, and the balanced level of PFN-1 is important for the IκBζ regulation. Thus, the expression of PFN-1 can be used as a biomarker for psoriasis severity, and it can be considered as a possible target for the treatment of psoriasis.
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Affiliation(s)
- Bo Ram Mok
- Department of Biomedical Science, School of Medicine, CHA University, Seongnam, Korea
| | - A-Ram Kim
- Department of Biomedical Science, School of Medicine, CHA University, Seongnam, Korea
| | - Seung Hwa Baek
- Department of Biomedical Science, School of Medicine, CHA University, Seongnam, Korea
| | - Ji Hae Ahn
- Department of Dermatology, Bundang Medical Center, School of Medicine, CHA University, Seongnam, Korea
| | - Seung Hui Seok
- Department of Dermatology, Bundang Medical Center, School of Medicine, CHA University, Seongnam, Korea
| | - Jung U Shin
- Department of Dermatology, Bundang Medical Center, School of Medicine, CHA University, Seongnam, Korea
| | - Dong Hyun Kim
- Department of Dermatology, Bundang Medical Center, School of Medicine, CHA University, Seongnam, Korea.
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13
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Barbier MA, Piaceski AD, Larouche D, Villeneuve SH, Ghani K, Pope E, Caruso M, Germain L. Efficient Gamma-Retroviral Transduction of Primary Human Skin Cells Using the EF-c Peptide as a Transduction Enhancer. Curr Protoc 2022; 2:e353. [PMID: 35085429 DOI: 10.1002/cpz1.353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Efficient gene transfer into cultured fibroblasts and keratinocytes during retroviral transduction is a critical step toward the treatment of genodermatoses such as epidermolysis bullosa. However, achieving high transduction rates is still a difficult task, particularly for the insertion of large coding sequences for which high viral titers cannot always be obtained. Multiple polycationic molecules, such as polybrene, which has been used in several clinical trials, have the ability to boost ex vivo retroviral gene transfer. However, the use of polybrene has been associated with a reduction of the proliferation and growth potential of human keratinocytes in culture. We developed a method for the efficient retroviral transduction of primary fibroblasts and keratinocytes using EF-c, a polycationic nanofibril-forming peptide. In comparison with polybrene, we found that the retroviral transduction efficiency with EF-c was increased 2.5- to 3.2-fold for fibroblasts, but not for keratinocytes. Moreover, the use of EF-c did not affect fibroblast proliferation and keratinocyte stem cell content, whereas polybrene induced a decrease in both. This method could have a positive impact on the development of ex vivo gene correction of genodermatoses, allowing for more efficient gene transfer into primary skin cells with little to no effect on proliferation and stem cell content. © 2022 Wiley Periodicals LLC. Basic Protocol: Fibroblast and keratinocyte transduction Support Protocol: Assessment of transduction efficiency through flow cytometry analysis.
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Affiliation(s)
- Martin A Barbier
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX et Département de chirurgie, Faculté de médecine, Université Laval, Québec City, Quebec, Canada.,Centre de recherche du CHU de Québec-Université Laval, Québec City, Quebec, Canada
| | - Angela Dakiw Piaceski
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX et Département de chirurgie, Faculté de médecine, Université Laval, Québec City, Quebec, Canada.,Centre de recherche du CHU de Québec-Université Laval, Québec City, Quebec, Canada
| | - Danielle Larouche
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX et Département de chirurgie, Faculté de médecine, Université Laval, Québec City, Quebec, Canada.,Centre de recherche du CHU de Québec-Université Laval, Québec City, Quebec, Canada
| | - Sarah H Villeneuve
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX et Département de chirurgie, Faculté de médecine, Université Laval, Québec City, Quebec, Canada.,Centre de recherche du CHU de Québec-Université Laval, Québec City, Quebec, Canada
| | - Karim Ghani
- Centre de recherche du CHU de Québec-Université Laval, Québec City, Quebec, Canada.,Centre de recherche sur le cancer de l'Université Laval, Département de biologie moléculaire, de biochimie médicale et de pathologie, Faculté de médecine, Université Laval, Québec City, Quebec, Canada
| | - Elena Pope
- Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Manuel Caruso
- Centre de recherche du CHU de Québec-Université Laval, Québec City, Quebec, Canada.,Centre de recherche sur le cancer de l'Université Laval, Département de biologie moléculaire, de biochimie médicale et de pathologie, Faculté de médecine, Université Laval, Québec City, Quebec, Canada
| | - Lucie Germain
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX et Département de chirurgie, Faculté de médecine, Université Laval, Québec City, Quebec, Canada.,Centre de recherche du CHU de Québec-Université Laval, Québec City, Quebec, Canada
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14
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Brumberg V, Astrelina T, Malivanova T, Samoilov A. Modern Wound Dressings: Hydrogel Dressings. Biomedicines 2021; 9:1235. [PMID: 34572421 PMCID: PMC8472341 DOI: 10.3390/biomedicines9091235] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic wounds do not progress through the wound healing process in a timely manner and are considered a burden for healthcare system; they are also the most common reason for decrease in patient quality of life. Traditional wound dressings e.g., bandages and gauzes, although highly absorbent and effective for dry to mild, exudating wounds, require regular application, which therefore can cause pain upon dressing change. In addition, they have poor adhesional properties and cannot provide enough drainage for the wound. In this regard, the normalization of the healing process in chronic wounds is an extremely urgent task of public health and requires the creation and implementation of affordable dressings for patients with chronic wounds. Modern wound dressings (WDs) are aimed to solve these issues. At the same time, hydrogels, unlike other types of modern WDs (foam, films, hydrocolloids), have positive degradation properties that makes them the perfect choice in applications where a targeted delivery of bioactive substances to the wound is required. This mini review is focused on different types of traditional and modern WDs with an emphasis on hydrogels. Advantages and disadvantages of traditional and modern WDs as well as their applicability to different chronic wounds are elucidated. Furthermore, an effectiveness comparison between hydrogel WDs and the some of the frequently used biotechnologies in the field of regenerative medicine (adipose-derived mesenchymal stem cells (ADMSCs), mesenchymal stem cells, conditioned media, platelet-rich plasma (PRP)) is provided.
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Affiliation(s)
| | - Tatiana Astrelina
- Burnasyan Federal Medical Biophysical Center of the Federal Medical Biological Agency, 123098 Moscow, Russia; (V.B.); (T.M.); (A.S.)
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15
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Kelly C, Wallace D, Moulin V, Germain L, Zuccaro J, Galdyn I, Fish JS. Surviving an Extensive Burn Injury Using Advanced Skin Replacement Technologies. J Burn Care Res 2021; 42:1288-1291. [PMID: 34343315 DOI: 10.1093/jbcr/irab146] [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] [Indexed: 12/18/2022]
Abstract
There have been significant improvements in the technology available for treating extensive burns in the past decade. This case presents two unique, skin replacement technologies that were used to treat an 86% surface area flame burn in a pediatric patient. A temporary dermal replacement, known as "Novosorb™ Biodegradable Temporizing Matrix" was first used to stabilize the burn injury and remained in place for approximately three months. Given the large burn size and lack of available donor skin for grafting, a permanent skin replacement product known as "Self-Assembled Skin Substitute (SASS)" was then utilized to cover the burns. SASS is a novel technology that was developed to replace skin as an autologous skin graft and is currently available in Canada through a clinical trial for major burns. Ultimately, the concurrent use of these two technologies allowed for the unprecedented survival of a child following an extensive and life-threatening burn injury.
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Affiliation(s)
- Charis Kelly
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - David Wallace
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Plastic, Reconstructive, and Aesthetic Surgery, University of Toronto Faculty of Medicine, Toronto, Ontario, Canada
| | - Veronique Moulin
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada
| | - Lucie Germain
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada
| | - Jennifer Zuccaro
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Izabela Galdyn
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Joel S Fish
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Plastic, Reconstructive, and Aesthetic Surgery, University of Toronto Faculty of Medicine, Toronto, Ontario, Canada
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16
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Review of the Latest Methods of Epidermolysis Bullosa and Other Chronic Wounds Treatment Including BIOOPA Dressing. Dermatol Ther (Heidelb) 2021; 11:1469-1480. [PMID: 34269966 PMCID: PMC8484405 DOI: 10.1007/s13555-021-00578-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Indexed: 11/20/2022] Open
Abstract
Epidermolysis bullosa (EB) is a hereditary genetic skin disorder, classified as a type of genodermatosis, which causes severe, chronic skin blisters associated with painful and potentially life-threatening complications. Currently, there is no effective therapy or cure for EB. However, over the past decade, there have been several important advances in treatment methods, which are now approaching clinical application, including gene therapy, protein replacement therapy, cell therapy (allogeneic fibroblasts, mesenchymal stromal cells), bone marrow stem cell transplant, culture/vaccination of revertant mosaic keratinocytes, gene editing/engineering, and the clinical application of inducible pluripotent stem cells. Tissue engineering scientists are developing materials that mimic the structure and natural healing process to promote skin reconstruction in the event of an incurable injury. Although a cure for EB remains elusive, recent data from animal models and preliminary human clinical trials have raised the expectations of patients, clinicians, and researchers, where modifying the disease and improving patients’ quality of life are now considered attainable goals. In addition, the lessons learned from the treatment of EB may improve the treatment of other genetic diseases.
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17
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Sierra-Sánchez Á, Kim KH, Blasco-Morente G, Arias-Santiago S. Cellular human tissue-engineered skin substitutes investigated for deep and difficult to heal injuries. NPJ Regen Med 2021; 6:35. [PMID: 34140525 PMCID: PMC8211795 DOI: 10.1038/s41536-021-00144-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
Wound healing is an important function of skin; however, after significant skin injury (burns) or in certain dermatological pathologies (chronic wounds), this important process can be deregulated or lost, resulting in severe complications. To avoid these, studies have focused on developing tissue-engineered skin substitutes (TESSs), which attempt to replace and regenerate the damaged skin. Autologous cultured epithelial substitutes (CESs) constituted of keratinocytes, allogeneic cultured dermal substitutes (CDSs) composed of biomaterials and fibroblasts and autologous composite skin substitutes (CSSs) comprised of biomaterials, keratinocytes and fibroblasts, have been the most studied clinical TESSs, reporting positive results for different pathological conditions. However, researchers' purpose is to develop TESSs that resemble in a better way the human skin and its wound healing process. For this reason, they have also evaluated at preclinical level the incorporation of other human cell types such as melanocytes, Merkel and Langerhans cells, skin stem cells (SSCs), induced pluripotent stem cells (iPSCs) or mesenchymal stem cells (MSCs). Among these, MSCs have been also reported in clinical studies with hopeful results. Future perspectives in the field of human-TESSs are focused on improving in vivo animal models, incorporating immune cells, designing specific niches inside the biomaterials to increase stem cell potential and developing three-dimensional bioprinting strategies, with the final purpose of increasing patient's health care. In this review we summarize the use of different human cell populations for preclinical and clinical TESSs under research, remarking their strengths and limitations and discuss the future perspectives, which could be useful for wound healing purposes.
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Affiliation(s)
- Álvaro Sierra-Sánchez
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Andalusian Network of Design and Translation of Advanced Therapies, Granada, Spain.
- Biosanitary Institute of Granada (ibs.GRANADA), Granada, Spain.
| | - Kevin H Kim
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada University, Granada, Spain
| | - Gonzalo Blasco-Morente
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada University, Granada, Spain
| | - Salvador Arias-Santiago
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Andalusian Network of Design and Translation of Advanced Therapies, Granada, Spain
- Biosanitary Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada University, Granada, Spain
- Department of Dermatology, Faculty of Medicine, University of Granada, Granada, Spain
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18
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Larose AE, Dakiw-Piaceski A, Barbier MA, Larouche D, Gauvin R, Caruso M, Pope E, Germain L. Peel Test to Assess the Adhesion Strength of the Dermal-Epidermal Junction in Tissue-Engineered Skin. Tissue Eng Part C Methods 2021; 26:180-189. [PMID: 32085694 DOI: 10.1089/ten.tec.2019.0268] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Innovative therapies combining gene-corrected stem cells and the production of bioengineered tissues to treat epidermolysis bullosa are emerging. However, quantitative tests to measure the adhesion forces between two highly viscoelastic substrates such as those found in bilayered bioengineered skin are needed and are still lacking. The objective of this study was to develop a mechanical test to measure the dermal-epidermal adhesion strength of our bilayered tissue-engineered skin substitute (TES) produced with the self-assembly method. We developed a peel test, which allows the displacement of both skin layers in a T configuration, based on the ASTM International standard. A MATLAB program was written to process and analyze raw data. The experimental setup was tested by measuring the dermal-epidermal adhesion strength in TESs produced with normal or collagen VII-deficient cells. Our peel testing method allowed us to detect the impact of the absence of collagen VII in the dermal-epidermal adhesion strength of TESs and also to examine the progression of the dermal-epidermal adhesion strength in relation to culture time in normal TES. Impact statement This study describes a method for assessing the adhesion strength at the dermal-epidermal junction of individual tissue-engineered skin substitute (TES). An ASTM standardized protocol of peel testing was designed to measure this important mechanical property. Our innovative approach will serve as a quality control in the production, improvement, and application of TESs for the treatment of pathologies affecting the dermal-epidermal adhesion such as epidermolysis bullosa. Data presented contribute to research on the interfaces between biological substrates and provide a reference factor for the characterization of products derived from tissue engineering.
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Affiliation(s)
- Alex E Larose
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada.,Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
| | - Angela Dakiw-Piaceski
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada
| | - Martin A Barbier
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada.,Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
| | - Danielle Larouche
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada
| | - Robert Gauvin
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada.,Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
| | - Manuel Caruso
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Faculty of Medicine, Université Laval Cancer Research Center, Université Laval, Québec, Canada
| | - Elena Pope
- Paediatric Dermatology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Lucie Germain
- CHU of Québec-Laval University Research Center and Center of Research in Experimental Organogenesis of Laval University/LOEX, Québec, Canada.,Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
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19
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Elastic and biodegradable chitosan/agarose film revealing slightly acidic pH for potential applications in regenerative medicine as artificial skin graft. Int J Biol Macromol 2020; 164:172-183. [DOI: 10.1016/j.ijbiomac.2020.07.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/30/2020] [Accepted: 07/09/2020] [Indexed: 02/06/2023]
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20
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Smith A, Huang M, Watkins T, Burguin F, Baskin J, Garlick JA. De novo production of human extracellular matrix supports increased throughput and cellular complexity in 3D skin equivalent model. J Tissue Eng Regen Med 2020; 14:1019-1027. [PMID: 32483913 DOI: 10.1002/term.3071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 04/14/2020] [Accepted: 05/11/2020] [Indexed: 12/17/2022]
Abstract
Three-dimensional (3D) tissue models of human skin are being developed to better understand disease phenotypes and to screen new drugs for potential therapies. Several factors will increase the value of these in vitro 3D skin tissues for these purposes. These include the need for human-derived extracellular matrix (ECM), higher throughput tissue formats, and greater cellular complexity. Here, we present an approach for the fabrication of 3D skin-like tissues as a platform that addresses these three considerations. We demonstrate that human adult and neonatal fibroblasts deposit an endogenous ECM de novo that serves as an effective stroma for full epithelial tissue development and differentiation. We have miniaturized these tissues to a 24-well format to adapt them for eventual higher throughput drug screening. We have shown that monocytes from the peripheral blood can be incorporated into this model as macrophages to increase tissue complexity. This humanized skin-like tissue decreases dependency on animal-derived ECM while increasing cellular complexity that can enable screening inflammatory responses in tissue models of human skin.
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Affiliation(s)
- Avi Smith
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Mengqi Huang
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA, USA.,Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Trishawna Watkins
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Fiona Burguin
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Jeremy Baskin
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Jonathan A Garlick
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA, USA
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21
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Martel C, Tsutsumi T, Cément V, Khuong HT, Dupré N, Ismail AA, Gros-Louis F. Diagnosis of idiopathic amyotrophic lateral sclerosis using Fourier-transform infrared spectroscopic analysis of patient-derived skin. Analyst 2020; 145:3678-3685. [PMID: 32307493 DOI: 10.1039/c9an02282a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One of the great challenges in identifying effective therapy in many neurodegenerative diseases, such as amyotrophic lateral sclerosis (ALS), is the lack of reliable biomarkers. In this study, we applied infrared imaging microspectroscopy, a valuable technique to investigate biomolecule fingerprints and secondary structure of proteins within biological tissue. We hypothesized that, since skin and CNS have the same embryonic origin, spectral differences associated with ALS-specific pathological events will be readily detectable through skin testing using this technique. Cells from healthy individuals and ALS patients were isolated from skin biopsies in order to generate tissue-engineered in vitro skin (TES). Infrared spectra of the generated TES were recorded using a focal-plane-array Fourier transform infrared (FPA-FTIR) spectrometer, and hierarchical cluster analysis of the spectral data was performed in order to establish clear differences between the tested TES specimens. Interestingly, our analyses showed that it was readily possible to discriminate ALS- and control-TES solely based on differences in associated FTIR spectra, mainly located between 1149 and 1473 cm-1, attributed to disruption of phospholipid cell membranes, extracellular matrix remodeling or cholesterol accumulation. Spectral differences within the TES samples may therefore be associated with disease state, paving the way for the identification of biomarkers in ALS.
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Affiliation(s)
- Christian Martel
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada.
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22
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Roy V, Magne B, Vaillancourt-Audet M, Blais M, Chabaud S, Grammond E, Piquet L, Fradette J, Laverdière I, Moulin VJ, Landreville S, Germain L, Auger FA, Gros-Louis F, Bolduc S. Human Organ-Specific 3D Cancer Models Produced by the Stromal Self-Assembly Method of Tissue Engineering for the Study of Solid Tumors. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6051210. [PMID: 32352002 PMCID: PMC7178531 DOI: 10.1155/2020/6051210] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 02/07/2020] [Accepted: 02/28/2020] [Indexed: 12/24/2022]
Abstract
Cancer research has considerably progressed with the improvement of in vitro study models, helping to understand the key role of the tumor microenvironment in cancer development and progression. Over the last few years, complex 3D human cell culture systems have gained much popularity over in vivo models, as they accurately mimic the tumor microenvironment and allow high-throughput drug screening. Of particular interest, in vitrohuman 3D tissue constructs, produced by the self-assembly method of tissue engineering, have been successfully used to model the tumor microenvironment and now represent a very promising approach to further develop diverse cancer models. In this review, we describe the importance of the tumor microenvironment and present the existing in vitro cancer models generated through the self-assembly method of tissue engineering. Lastly, we highlight the relevance of this approach to mimic various and complex tumors, including basal cell carcinoma, cutaneous neurofibroma, skin melanoma, bladder cancer, and uveal melanoma.
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Affiliation(s)
- Vincent Roy
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Brice Magne
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Maude Vaillancourt-Audet
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Mathieu Blais
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Stéphane Chabaud
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Emil Grammond
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
| | - Léo Piquet
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, QC, Canada
| | - Julie Fradette
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Isabelle Laverdière
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, QC, Canada
- Faculty of Pharmacy, Université Laval and CHU de Québec-Université Laval Research Center, Oncology Division, Québec, QC, Canada
| | - Véronique J. Moulin
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Solange Landreville
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, QC, Canada
- Department of Ophthalmology, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Lucie Germain
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - François A. Auger
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - François Gros-Louis
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Stéphane Bolduc
- Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC, Canada
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23
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Paggiaro AO, Mathor MB, Teodoro WR, Isaac C, Capelozzi VL, Gemperli R. Evaluation of Radiosterilized Glyercerolated Amniotic Membranes as a Substrate for Cultured Human Epithelial Cells. Organogenesis 2020; 16:27-41. [PMID: 32063078 DOI: 10.1080/15476278.2020.1723366] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Human amniotic membrane (HAM) is a biomaterial with biological properties beneficial to tissue repair, serving as a substrate for cell cultivation. Irradiation is used for tissue sterilization, but can damage the HAM structure. The objective of this paper was to construct a skin substitute, composed of human keratinocytes cultured on glycerolated HAMs, and to evaluate the influence radiation on subsequent cell culture growth. Four batches of HAMs were glycerolated, and half of them were radio-sterilzed with 25 kGy. Non-irradiated glycerolated HAM (ni-HAM) and irradiated glycerolated HAM (i-HAM) samples were then de-epithelized and analyzed using optical microscopy (Picrossirius staining), immunofluorescence and electron microscopy. Subsequently, keratinocytes were cultured on ni- and i-HAMs, and either immersed or positioned at the air-liquid interface. The basement membranes of the ni-HAM group remained intact following de-epithelialization, whereas the i-HAM group displayed no evidence or remnant presence of these membranes. Concerning the keratinocyte cultures, the ni-HAM substrate promoted the growth of multi-layered and differentiated epithelia. Keratinocytes cultured on i-HAM formed epithelium composed of three layers of stratification and discrete cell differentiation. The glycerolated HAM was compatible with cultured epithelia, demonstrating its potential as a skin substitute. Irradiation at 25 kGy caused structural damage to the amnion.
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Affiliation(s)
- André O Paggiaro
- Universidade de Guarulhos, Nursing Pós Graduation, Guarulhos, Brazil.,Universidade de São Paulo, Faculdade de Medicine, São Paulo, Brazil
| | - Monica B Mathor
- IPEN- Instituto de Pesquisa Energéticas e Nucleares, São Paulo, Brazil
| | - Walcy R Teodoro
- Universidade de São Paulo, Faculdade de Medicine, São Paulo, Brazil
| | - Cesár Isaac
- Universidade de São Paulo, Faculdade de Medicine, São Paulo, Brazil
| | - Vera L Capelozzi
- Universidade de São Paulo, Faculdade de Medicine, São Paulo, Brazil
| | - Rolf Gemperli
- Universidade de São Paulo, Faculdade de Medicine, São Paulo, Brazil
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24
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Yosef HK, Schütze K. Raman Trapping Microscopy for Non-invasive Analysis of Biological Samples. Methods Mol Biol 2019; 2095:303-317. [PMID: 31858476 DOI: 10.1007/978-1-0716-0191-4_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Raman microscopy is an emerging tool in biomedicine. It provides label-free and non-invasive analysis of biological cells. Due to its high biochemical specificity, Raman spectroscopy can be used to acquire spectral fingerprints that allow characterizing cells types and states. Here, we present a methodological approach for implementing Raman microscopy in skin cell measurements. Raman spectra can clearly identify keratinocytes, fibroblasts, and melanocytes cells that are involved in the production of autologous skin grafts. Consequently, Raman microscopy is a promising tool that can be used to analyze single cells and to test the quality of therapeutic cell products.
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25
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Urciuolo F, Casale C, Imparato G, Netti PA. Bioengineered Skin Substitutes: the Role of Extracellular Matrix and Vascularization in the Healing of Deep Wounds. J Clin Med 2019; 8:E2083. [PMID: 31805652 PMCID: PMC6947552 DOI: 10.3390/jcm8122083] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 12/21/2022] Open
Abstract
The formation of severe scars still represents the result of the closure process of extended and deep skin wounds. To address this issue, different bioengineered skin substitutes have been developed but a general consensus regarding their effectiveness has not been achieved yet. It will be shown that bioengineered skin substitutes, although representing a valid alternative to autografting, induce skin cells in repairing the wound rather than guiding a regeneration process. Repaired skin differs from regenerated skin, showing high contracture, loss of sensitivity, impaired pigmentation and absence of cutaneous adnexa (i.e., hair follicles and sweat glands). This leads to significant mobility and aesthetic concerns, making the development of more effective bioengineered skin models a current need. The objective of this review is to determine the limitations of either commercially available or investigational bioengineered skin substitutes and how advanced skin tissue engineering strategies can be improved in order to completely restore skin functions after severe wounds.
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Affiliation(s)
- Francesco Urciuolo
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II P.le Tecchio 80, 80125 Naples, Italy
| | - Costantino Casale
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
| | - Giorgia Imparato
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Naples, Italy;
| | - Paolo A. Netti
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II P.le Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Naples, Italy;
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26
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Paganelli A, Benassi L, Rossi E, Magnoni C. Extracellular matrix deposition by adipose-derived stem cells and fibroblasts: a comparative study. Arch Dermatol Res 2019; 312:295-299. [PMID: 31616972 DOI: 10.1007/s00403-019-01997-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/21/2019] [Accepted: 10/03/2019] [Indexed: 02/05/2023]
Abstract
Cell-based strategies are today widely studied as possible therapies for wound healing. In this setting, fibroblasts play a key role since they are the main dermal cellular component and are responsible for extracellular matrix secretion. Several works report on the possibility of using fibroblast-derived extracellular matrix scaffolds for wound healing in skin injuries. While fibroblast-based substitutes have already been intensively studied by other groups, we focused our attention on the possibility of creating an adipose-derived stem cell (ADSC)-induced dermal scaffold for wound healing. ADSCs are a particular subset of mesenchymal stem cells present in the stromal vascular fraction of the adipose tissue. The aim of our work was to compare the ability of ADSCs and fibroblast to produce in vitro a scaffolding material, both in terms of collagen and fibronectin production. ADSCs turned out to be capable of efficiently producing a collagen and fibronectin-containing dermal matrix upon stimulation with ascorbic acid. We observed fibronectin and collagen production by ADSCs to be even more abundant when compared to fibroblasts'. Our results support the use of ADSC-induced sheets instead of fibroblast-based dermal substitutes as wound-healing strategies in full-thickness skin injuries.
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Affiliation(s)
- Alessia Paganelli
- Surgical, Medical and Dental Department of Morphological Sciences Related To Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy.
| | - Luisa Benassi
- Surgical, Medical and Dental Department of Morphological Sciences Related To Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
| | - Elena Rossi
- Surgical, Medical and Dental Department of Morphological Sciences Related To Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
| | - Cristina Magnoni
- Surgical, Medical and Dental Department of Morphological Sciences Related To Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
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27
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Paganelli A, Benassi L, Pastar I, Pellegrini M, Azzoni P, Vaschieri C, Pisciotta A, Carnevale G, Pellacani G, Magnoni C. In vitro Engineering of a Skin Substitute Based on Adipose-Derived Stem Cells. Cells Tissues Organs 2019; 207:46-57. [PMID: 31261153 DOI: 10.1159/000501071] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/21/2019] [Indexed: 11/19/2022] Open
Abstract
In the field of wound healing, stem cell-based strategies are gaining importance for their regenerative potential. Adipose-derived stem cells (ADSCs) are a particular subset of mesenchymal stem cells present in the stromal-vascular fraction of the adipose tissue, today considered very attractive for their relative abundance and accessibility in the human body. However, ADSCs are still not routinely used in normal clinical practice. Several studies have also reported ADSC transplantation in association with biomaterials in an attempt to enhance the local retention and growth rate of the cells. The aim of our study was to evaluate the ability of ADSCs to build a dermal scaffold to be potentially used as a dermal substitute in the field of wound healing, with optimal biocompatibility and mechanical properties. ADSCs were defined as CD90-, CD73-, and CD105-positive cells. ADSCs turned out to be capable of secreting all the main components of the extracellular matrix (ECM) upon stimulation, thus efficiently producing a collagen and fibronectin-containing dermal matrix. We also checked whether the ADSC-produced dermal scaffold could be seeded with keratinocytes. The scaffolding material directly produced by ADSCs has several advantages when compared to the commercially available ones: it is easily obtained from the patients and it is 100% biocompatible and supports cell-ECM interaction. Moreover, it represents a possible powerful therapeutic tool for patients with chronic ulcers since it appears to be potentially grafted with keratinocytes layers, thus bypassing the classical two-step grafting procedure.
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Affiliation(s)
- Alessia Paganelli
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy,
| | - Luisa Benassi
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Irena Pastar
- Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, Miami, Florida, USA
| | - Massimo Pellegrini
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Paola Azzoni
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Cristina Vaschieri
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandra Pisciotta
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Gianluca Carnevale
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Giovanni Pellacani
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Cristina Magnoni
- Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
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28
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Goyer B, Larouche D, Kim DH, Veillette N, Pruneau V, Bernier V, Auger FA, Germain L. Immune tolerance of tissue-engineered skin produced with allogeneic or xenogeneic fibroblasts and syngeneic keratinocytes grafted on mice. Acta Biomater 2019; 90:192-204. [PMID: 30953802 DOI: 10.1016/j.actbio.2019.04.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/28/2019] [Accepted: 04/02/2019] [Indexed: 01/26/2023]
Abstract
Organs are needed for the long-term replacement of diseased or wounded tissues. Various technologies based on cells seeded in synthetic or biomaterial scaffolds, or scaffold-free methods have been developed in order to produce substitutes that mimic native organs and tissues. For cell-based approaches, the use of living allogeneic fibroblasts could potentially lead to the production of "off-the-shelf" bioengineered organs/tissues. However, questions remain regarding the outcome of allogeneic grafts in terms of persistence of allogeneic cells, tolerance and the host immune reaction against the tissue after implantation. To evaluate graft tolerance of engineered-tissues containing non-autologous fibroblasts, tissue-engineered skin substitutes (TESs) produced with syngeneic, allogeneic or xenogeneic fibroblasts associated with syngeneic, allogeneic or xenogeneic epithelial cells were grafted in mice as primary and secondary grafts. The immune response was evaluated by histological analysis and immunodetection of M2 macrophages, CD4- and CD8-positive T cells, 15, 19, 35 and 56 days after grafting. Tissue-engineered skin composed of non-autologous epithelial cells were rejected. In contrast, TESs composed of non-autologous fibroblasts underlying syngeneic epithelial cells were still present 56 days after grafting. This work shows that TES composed of non-autologous fibroblasts and autologous epithelial cells are not rejected after grafting. STATEMENT OF SIGNIFICANCE: We found that tissue-engineered skin substitutes produced by a scaffold-free cell-based approach from allogeneic fibroblasts and autologous epithelial cells are not rejected after grafting and allow for the permanent coverage of a full-thickness skin wounds. In the field of tissue engineering, these findings open the possibility of selecting a human fibroblastic or stromal cell population based on its biological properties and adequate biosafety, banking it, in order to produce "ready-to-use" bioengineered organs/tissues that could be grafted to any patient without eliciting immune reaction after grafting. Our results can be generalized to any organs produced from fibroblasts. Thus, it is a great step with multiple applications in tissue engineering and transplantation.
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Affiliation(s)
- Benjamin Goyer
- Centre de recherche du CHU de Québec - Université Laval, Department of Surgery, Faculty of Medicine, Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Canada
| | - Danielle Larouche
- Centre de recherche du CHU de Québec - Université Laval, Department of Surgery, Faculty of Medicine, Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Canada
| | - Dong Hyun Kim
- Centre de recherche du CHU de Québec - Université Laval, Department of Surgery, Faculty of Medicine, Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Canada
| | - Noémie Veillette
- Centre de recherche du CHU de Québec - Université Laval, Department of Surgery, Faculty of Medicine, Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Canada
| | - Virgile Pruneau
- Centre de recherche du CHU de Québec - Université Laval, Department of Surgery, Faculty of Medicine, Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Canada
| | - Vincent Bernier
- Department of Molecular Biology, Medical Biochemistry and Pathology, Faculty of Medicine, Université Laval, Canada
| | - François A Auger
- Centre de recherche du CHU de Québec - Université Laval, Department of Surgery, Faculty of Medicine, Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Canada
| | - Lucie Germain
- Centre de recherche du CHU de Québec - Université Laval, Department of Surgery, Faculty of Medicine, Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Canada.
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29
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Abstract
Culturing keratinocytes to form coherent epithelial tissue sheets has improved the treatment of extensively burned patients. Keratinocyte culture is also used to investigate various cellular and molecular mechanisms involved in different skin pathologies. To preserve stem cells during epithelial cell culture, reliable methods and conditions are of the utmost importance. Properly cultured keratinocytes will exhibit a consistent cuboid morphology and can proliferate for many passages. This chapter details materials needed and methods for all aspects of efficient keratinocyte culture for clinical applications, namely tissue sampling and transportation, isolation, routine culture, subculture, and cryopreservation.
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30
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Cantin-Warren L, Guignard R, Cortez Ghio S, Larouche D, Auger FA, Germain L. Specialized Living Wound Dressing Based on the Self-Assembly Approach of Tissue Engineering. J Funct Biomater 2018; 9:jfb9030053. [PMID: 30223550 PMCID: PMC6165032 DOI: 10.3390/jfb9030053] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/30/2018] [Accepted: 09/10/2018] [Indexed: 12/24/2022] Open
Abstract
There is a high incidence of failure and recurrence for chronic skin wounds following conventional therapies. To promote healing, the use of skin substitutes containing living cells as wound dressings has been proposed. The aim of this study was to produce a scaffold-free cell-based bilayered tissue-engineered skin substitute (TES) containing living fibroblasts and keratinocytes suitable for use as wound dressing, while considering production time, handling effort during the manufacturing process, and stability of the final product. The self-assembly method, which relies on the ability of mesenchymal cells to secrete and organize connective tissue sheet sustaining keratinocyte growth, was used to produce TESs. Three fibroblast-seeding densities were tested to produce tissue sheets. At day 17, keratinocytes were added onto 1 or 3 (reference method) stacked tissue sheets. Four days later, TESs were subjected either to 4, 10, or 17 days of culture at the air–liquid interface (A/L). All resulting TESs were comparable in terms of their histological aspect, protein expression profile and contractile behavior in vitro. However, signs of extracellular matrix (ECM) digestion that progressed over culture time were noted in TESs produced with only one fibroblast-derived tissue sheet. With lower fibroblast density, the ECM of TESs was almost completely digested after 10 days A/L and lost histological integrity after grafting in athymic mice. Increasing the fibroblast seeding density 5 to 10 times solved this problem. We conclude that the proposed method allows for a 25-day production of a living TES, which retains its histological characteristics in vitro for at least two weeks.
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Affiliation(s)
- Laurence Cantin-Warren
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Centre, Département de Chirurgie, Faculté de Médecine, Université Laval, 1401 18e Rue, Québec, Québec G1J 1Z4, Canada.
| | - Rina Guignard
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Centre, Département de Chirurgie, Faculté de Médecine, Université Laval, 1401 18e Rue, Québec, Québec G1J 1Z4, Canada.
| | - Sergio Cortez Ghio
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Centre, Département de Chirurgie, Faculté de Médecine, Université Laval, 1401 18e Rue, Québec, Québec G1J 1Z4, Canada.
| | - Danielle Larouche
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Centre, Département de Chirurgie, Faculté de Médecine, Université Laval, 1401 18e Rue, Québec, Québec G1J 1Z4, Canada.
| | - François A Auger
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Centre, Département de Chirurgie, Faculté de Médecine, Université Laval, 1401 18e Rue, Québec, Québec G1J 1Z4, Canada.
| | - Lucie Germain
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Centre, Département de Chirurgie, Faculté de Médecine, Université Laval, 1401 18e Rue, Québec, Québec G1J 1Z4, Canada.
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Bourland J, Fradette J, Auger FA. Tissue-engineered 3D melanoma model with blood and lymphatic capillaries for drug development. Sci Rep 2018; 8:13191. [PMID: 30181613 PMCID: PMC6123405 DOI: 10.1038/s41598-018-31502-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/17/2018] [Indexed: 12/21/2022] Open
Abstract
While being the rarest skin cancer, melanoma is also the deadliest. To further drug discovery and improve clinical translation, new human cell-based in vitro models are needed. Our work strives to mimic the melanoma microenvironment in vitro as an alternative to animal testing. We used the self-assembly method to produce a 3D human melanoma model exempt of exogenous biomaterial. This model is based on primary human skin cells and melanoma cell lines while including a key feature for tumor progression: blood and lymphatic capillaries. Major components of the tumor microenvironment such as capillaries, human extracellular matrix, a stratified epidermis (involucrin, filaggrin) and basement membrane (laminin 332) are recapitulated in vitro. We demonstrate the persistence of CD31+ blood and podoplanin+/LYVE-1+ lymphatic capillaries in the engineered tissue. Chronic treatment with vemurafenib was applied to the model and elicited a dose-dependent response on proliferation and apoptosis, making it a promising tool to test new compounds in a human-like environment.
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Affiliation(s)
- Jennifer Bourland
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Québec, Qc, Canada
- Division of Regenerative Medicine, CHU de Québec-Université Laval Research Center, Québec, Qc, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, Qc, Canada
| | - Julie Fradette
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Québec, Qc, Canada
- Division of Regenerative Medicine, CHU de Québec-Université Laval Research Center, Québec, Qc, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, Qc, Canada
| | - François A Auger
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Québec, Qc, Canada.
- Division of Regenerative Medicine, CHU de Québec-Université Laval Research Center, Québec, Qc, Canada.
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, Qc, Canada.
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Simard-Bisson C, Parent LA, Moulin VJ, Fruteau de Laclos B. Characterization of Epidermal Lipoxygenase Expression in Normal Human Skin and Tissue-Engineered Skin Substitutes. J Histochem Cytochem 2018; 66:813-824. [PMID: 29985723 DOI: 10.1369/0022155418788117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Lipoxygenases (LOXs) are enzymes likely to be involved in corneocyte lipid envelope formation and skin barrier function. In humans, mutations in epidermis-type lipoxygenase 3 ( eLOX-3) and 12R-lipoxygenase ( 12R-LOX) genes are associated with autosomal recessive congenital ichthyosis (ARCI), whereas deletion of these genes in mice causes epidermal defects. LOXs also represent a matter of interest in psoriasis as well as in cancer research. However, their expression as well as the exact role of these enzymes in normal human skin have not been fully described. Our goal was to characterize the expression of epidermal LOXs in both normal human skin and Tissue-Engineered Skin Substitutes (TESS) and to consider TESS as a potential model for LOX functional studies. Staining for epidermal differentiation markers and LOXs was performed, in parallel, on normal human skin and TESS. Our results showed similar expression profiles in TESS when compared with native skin for e-LOX3, 12R-LOX, 12S-lipoxygenase (12S-LOX), and 15-lipoxygenase 2 (15-LOX-2) but not for 15-lipoxygenase 1 (15-LOX-1). Because of their appropriate epidermal differentiation and LOX expression, TESS represent an alternative model for future studies on LOX function.
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Affiliation(s)
- Carolyne Simard-Bisson
- Centre de recherche du CHU de Québec-Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Quebec City, Québec, Canada
| | - Lorraine Andrée Parent
- Centre de recherche du CHU de Québec-Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Quebec City, Québec, Canada
| | - Véronique J Moulin
- Centre de recherche du CHU de Québec-Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Quebec City, Québec, Canada.,Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, Québec, Canada
| | - Bernard Fruteau de Laclos
- Centre de recherche du CHU de Québec-Université Laval and Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX, Quebec City, Québec, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Faculty of Medicine, Université Laval, Quebec City, Québec, Canada
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Use of bilaminar grafts as life-saving interventions for severe burns: A single-center experience. Burns 2018; 44:1336-1345. [PMID: 29573885 DOI: 10.1016/j.burns.2018.01.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/02/2018] [Accepted: 01/30/2018] [Indexed: 11/21/2022]
Abstract
BACKGROUND Skin coverage remains a significant hurdle in large-sized burns. Recent advances have allowed to grow Bilaminar Cultured Skin Autografts (BCSGs) from patients' own donor sites. The aim of this study was to report long-term outcomes in patients with large-sized burns having received BCSGs. METHODS Nine patients received BCSGs from January 2010 to May 2015. Except one patient who died during hospitalization, all patients were contacted. Four agreed to partake in the study. Patients were tested with the Vancouver Scar Scale (VSS), QuickDASH questionnaire and Burn Specific Health Scale (BSHS). Incisional biopsies of BCSGs were compared with patients' autografts. RESULTS From nine patients, mean age was 40 years and mean TBSA was 70.3%. For the four patients included, score averaged was 2.25 on the VSS, 29.5 on QuickDASH, 36/36 for psychosocial items and 63/84 for functional abilities on the BSHS. Compared with autografts, BCSGs demonstrated better pliability VSS and functionality. Biopsies showed no evidence of malignancy or atypical changes, but areas of hyperpigmentation. CONCLUSION This is the first report investigating the long-term outcome of a newly developed BCSG. BCSGs demonstrated comparable results with patients' autografts, functional outcomes on self-reported questionnaires and excellent psychological states. Precaution given the extensive unexpected hyperpigmentation must be taken and a randomized controlled study is underway.
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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: 54] [Impact Index Per Article: 9.0] [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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Kwon H, Kim M, Seo Y, Moon YS, Lee HJ, Lee K, Lee H. Emergence of synthetic mRNA: In vitro synthesis of mRNA and its applications in regenerative medicine. Biomaterials 2017; 156:172-193. [PMID: 29197748 DOI: 10.1016/j.biomaterials.2017.11.034] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 10/25/2017] [Accepted: 11/21/2017] [Indexed: 12/15/2022]
Abstract
The field of gene therapy has evolved over the past two decades after the first introduction of nucleic acid drugs, such as plasmid DNA (pDNA). With the development of in vitro transcription (IVT) methods, synthetic mRNA has become an emerging class of gene therapy. IVT mRNA has several advantages over conventional pDNA for the expression of target proteins. mRNA does not require nuclear localization to mediate protein translation. The intracellular process for protein expression is much simpler and there is no potential risk of insertion mutagenesis. Having these advantages, the level of protein expression is far enhanced as comparable to that of viral expression systems. This makes IVT mRNA a powerful alternative gene expression system for various applications in regenerative medicine. In this review, we highlight the synthesis and preparation of IVT mRNA and its therapeutic applications. The article includes the design and preparation of IVT mRNA, chemical modification of IVT mRNA, and therapeutic applications of IVT mRNA in cellular reprogramming, stem cell engineering, and protein replacement therapy. Finally, future perspectives and challenges of IVT mRNA are discussed.
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Affiliation(s)
- Hyokyoung Kwon
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Minjeong Kim
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Yunmi Seo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Yae Seul Moon
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hwa Jeong Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Kyuri Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea.
| | - Hyukjin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea.
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Expression of C4.4A in an In Vitro Human Tissue-Engineered Skin Model. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2403072. [PMID: 29075641 PMCID: PMC5610857 DOI: 10.1155/2017/2403072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/18/2017] [Indexed: 12/22/2022]
Abstract
A multi-LU-domain-containing protein denoted C4.4A exhibits a tightly regulated membrane-associated expression in the suprabasal layers of stratified squamous epithelia such as skin and the esophagus, and the expression of C4.4A is dysregulated in various pathological conditions. However, the biological function of C4.4A remains unknown. To enable further studies, we evaluated the expression of C4.4A in monolayer cultures of normal human keratinocytes and in tissue-engineered skin substitutes (TESs) produced by the self-assembly approach, which allow the formation of a fully differentiated epidermis tissue. Results showed that, in monolayer, C4.4A was highly expressed in the centre of keratinocyte colonies at cell-cell contacts areas, while some cells located at the periphery presented little C4.4A expression. In TES, emergence of C4.4A expression coincided with the formation of the stratum spinosum. After the creation of a wound within the TES, C4.4A expression was observed in the suprabasal keratinocytes of the migrating epithelium, with the exception of the foremost leading keratinocytes, which were negative for C4.4A. Our results are consistent with previous data in mouse embryogenesis and wound healing. Based on these findings, we conclude that this human TES model provides an excellent surrogate for studies of C4.4A and Haldisin expressions in human stratified epithelia.
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Beaudoin Cloutier C, Goyer B, Perron C, Guignard R, Larouche D, Moulin VJ, Germain L, Gauvin R, Auger FA. In Vivo Evaluation and Imaging of a Bilayered Self-Assembled Skin Substitute Using a Decellularized Dermal Matrix Grafted on Mice. Tissue Eng Part A 2017; 23:313-322. [PMID: 27958884 DOI: 10.1089/ten.tea.2016.0296] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
As time to final coverage is the essence for better survival outcome in severely burned patients, we have continuously strived to reduce the duration for the preparation of our bilayered self-assembled skin substitutes (SASS). These SASS produced in vitro by the self-assembly approach have a structure and functionality very similar to native skin. Recently, we have shown that a decellularized dermal matrix preproduced by the self-assembly approach could be used as a template to further obtain self-assembled skin substitute using a decellularized dermal template (SASS-DM) in vitro. Thus, the production period with patient cells was then reduced to about 1 month. Herein, preclinical animal experiments have been performed to confirm the integration and evolution of such a graft and compare the maturation of SASS and SASS-DM in vivo. Both tissues, reconstructed from adult or newborn cells, were grafted on athymic mice. Green fluorescent protein-transfected keratinocytes were also used to follow grafted tissues weekly for 6 weeks using an in vivo imaging system (IVIS). Cell architecture and differentiation were studied with histological and immunofluorescence analyses at each time point. Graft integration, macroscopic evolution, histological analyses, and expression of skin differentiation markers were similar between both skin substitutes reconstructed from either newborn or adult cells, and IVIS observations confirmed the efficient engraftment of SASS-DM. In conclusion, our in vivo graft experiments on a mouse model demonstrated that the SASS-DM had equivalent macroscopic, histological, and differentiation evolution over a 6-week period, when compared with the SASS. The tissue-engineered SASS-DM could improve clinical availability and advantageously shorten the time necessary for the definitive wound coverage of severely burned patients.
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Affiliation(s)
- Chanel Beaudoin Cloutier
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada .,3 Department of Plastic Surgery, Faculty of Medicine, University of Montreal , Quebec, Canada
| | - Benjamin Goyer
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada
| | - Cindy Perron
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada
| | - Rina Guignard
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada
| | - Danielle Larouche
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada
| | - Véronique J Moulin
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada
| | - Lucie Germain
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada
| | - Robert Gauvin
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,4 Centre Québécois sur les Matériaux Fonctionnels (CQMF) , Quebec, Canada
| | - François A Auger
- 1 Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX and Département de chirurgie, Faculté de Médecine, Université Laval , Quebec, Canada .,2 Centre de recherche du CHU de Québec-Université Laval , Axe médecine régénératrice, Quebec, Canada
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