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Barbosa YGDS, Santos-Oliveira R, Alencar LMR, Ladd FVL, da Silva FL, do Nascimento AGS, da Rocha Neto HJ, Freitas RICD, Carvalho MAMD, Neto NMA. Exploring the epidermal architecture of Dasyprocta prymnolopha: A potential dermatology research model. Tissue Cell 2024; 90:102500. [PMID: 39178578 DOI: 10.1016/j.tice.2024.102500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 07/15/2024] [Accepted: 07/26/2024] [Indexed: 08/26/2024]
Abstract
The agouti (Dasyprocta prymnolopha) is a medium-sized, wild rodent that is highly rustic and docile. Its size and ease of management make it a viable candidate for an alternative animal model to traditional murine subjects. However, data on the epidermal strata of agoutis are lacking, with significant uncertainties persisting regarding their skin's characterization. This study aimed to describe and quantify the epidermal strata of skin biopsies from male and female agoutis raised in captivity, to further validate the species as a model for dermatological research. Ultrastructural evaluations through atomic force microscopy (AFM) and stereological analyses were conducted, revealing significant differences between the layers of the skin; notably, the dermis exhibited a greater total volume than the epidermis. The findings suggest that the epidermal strata are well-defined, with the volume likely correlating to the size and cellular density of the keratinocytes. Corneodesmosomes and tonofilaments were identified across all epidermal layers, indicating the probable maintenance of anchoring protein activity, even post-cornification of these cells. These results suggest that the agouti may serve as a promising model for dermatological studies, owing to the homogeneity of its cutaneous tissue across different body regions and the distinct volume and morphology of its epithelial stratification, which could enhance the applicability of systematic investigative methods in the future.
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Affiliation(s)
| | - Ralph Santos-Oliveira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rio de Janeiro 21941906, Brazil; Rio de Janeiro State University, Laboratory of Nanoradiopharmacy, Rio de Janeiro 23070200, Brazil.
| | - Luciana Magalhães Rebelo Alencar
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, São Luís, Maranhão 65080-805, Brazil
| | - Fernando Vagner Lobo Ladd
- Programa de Pós-gaduação em Biologia Estrutural e Funcional, Universidade Federal do Rio Grande do Norte, Brazil
| | - Fabiane Leite da Silva
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Universidade Federal do Piauí, Teresina 64049-550, Brazil
| | - Ana Gabriellen Souza do Nascimento
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Universidade Federal do Piauí, Teresina 64049-550, Brazil
| | - Hermínio José da Rocha Neto
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Universidade Federal do Piauí, Teresina 64049-550, Brazil
| | | | - Maria Acelina Martins de Carvalho
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Universidade Federal do Piauí, Teresina 64049-550, Brazil; Universidade Federal do Piauí, graduação em medicina veterinária, Teresina 64049-550, Brazil; Núcleo Integrado de Morfologia e Pesquisas com Células-tronco, Universidade Federal do Piauí, Teresina 64049-550, Brazil
| | - Napoleão Martins Argôlo Neto
- Programa de Pós-graduação em Tecnologias Aplicadas a Animais de Interesse Regional, Universidade Federal do Piauí, Teresina 64049-550, Brazil; Universidade Federal do Piauí, graduação em medicina veterinária, Teresina 64049-550, Brazil; Núcleo Integrado de Morfologia e Pesquisas com Células-tronco, Universidade Federal do Piauí, Teresina 64049-550, Brazil.
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2
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Fuchs C, Wang Y, Wise E, Farinelli WA, Anderson RR, Cho S, Meyerle JH, Tam J. Structural and molecular characteristics of weight-bearing volar skin can be reconstituted by micro skin tissue column grafting. FASEB J 2024; 38:e23873. [PMID: 39105468 DOI: 10.1096/fj.202400866r] [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] [Received: 04/16/2024] [Revised: 07/08/2024] [Accepted: 07/26/2024] [Indexed: 08/07/2024]
Abstract
For patients with lower limb amputations, prostheses are immensely helpful for mobility and the ability to perform job-related or recreational activities. However, the skin covering the amputation stump is typically transposed from adjacent areas of the leg and lacks the weight-bearing capacity that is only found in the specialized skin covering the palms and soles (a.k.a. volar skin). As a result, the skin tissue in direct contact with the prosthesis frequently breaks down, leading to the development of painful sores and other complications that limit, and often preclude, the use of prostheses. Transplanting volar skin onto amputation stumps could be a solution to these problems, but traditional skin transplantation techniques cause substantial morbidity at the donor site, such as pain and scarring, which are especially problematic for volar skin given the critical functional importance of the volar skin areas. We previously developed the technology to collect and engraft full-thickness skin tissue while avoiding long-term donor site morbidity, by harvesting the skin in the form of small (~0.5 mm diameter) cores that we termed "micro skin tissue columns" (MSTCs), so that each donor wound is small enough to heal quickly and without clinically appreciable scarring or other long-term abnormalities. The goal of this study was to establish whether a similar approach could be used to confer the structural and molecular characteristics of volar skin ectopically to other skin areas. In a human-to-mouse xenograft model, we show the long-term persistence of various human plantar MSTC-derived cell types in the murine recipient. Then in an autologous porcine model, we harvested MSTCs from the bottom of the foot and transplanted them onto excision wounds on the animals' trunks. The healing processes at both the donor and graft sites were monitored over 8 weeks, and tissue samples were taken to verify volar-specific characteristics by histology and immunohistochemistry. The volar donor sites were well-tolerated, healed rapidly, and showed no signs of scarring or any other long-term defects. The graft sites were able to maintain volar-specific histologic features and expression of characteristics protein markers, up to the 8-week duration of this study. These results suggest that MSTC grafting could be a practical approach to obtain autologous donor volar skin tissue, confer volar skin characteristics ectopically to nonvolar skin areas, improve the load-bearing capacity of amputation stump skin, and ultimately enhance mobility and quality-of-life for lower limb amputees.
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Affiliation(s)
- Christiane Fuchs
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Ying Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Emma Wise
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - William A Farinelli
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - R Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Sunghun Cho
- Department of Dermatology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- Department of Dermatology, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Jon H Meyerle
- Department of Dermatology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- Department of Dermatology, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Joshua Tam
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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3
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Fuchs C, Stalnaker KJ, Dalgard CL, Sukumar G, Hupalo D, Dreyfuss JM, Pan H, Wang Y, Pham L, Wu X, Jozic I, Anderson RR, Cho S, Meyerle JH, Tam J. Plantar Skin Exhibits Altered Physiology, Constitutive Activation of Wound-Associated Phenotypes, and Inherently Delayed Healing. J Invest Dermatol 2024; 144:1633-1648.e14. [PMID: 38237729 DOI: 10.1016/j.jid.2023.12.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 12/16/2023] [Accepted: 12/19/2023] [Indexed: 06/24/2024]
Abstract
Wound research has typically been performed without regard for where the wounds are located on the body, despite well-known heterogeneities in physical and biological properties between different skin areas. The skin covering the palms and soles is highly specialized, and plantar ulcers are one of the most challenging and costly wound types to manage. Using primarily the porcine model, we show that plantar skin is molecularly and functionally more distinct from nonplantar skin than previously recognized, with unique gene and protein expression profiles, broad alterations in cellular functions, constitutive activation of many wound-associated phenotypes, and inherently delayed healing. This unusual physiology is likely to play a significant but underappreciated role in the pathogenesis of plantar ulcers as well as the last 25+ years of futility in therapy development efforts. By revealing this critical yet unrecognized pitfall, we hope to contribute to the development of more effective therapies for these devastating nonhealing wounds.
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Affiliation(s)
- Christiane Fuchs
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Katherine J Stalnaker
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Clifton L Dalgard
- The American Genome Center, Uniformed Services University, Bethesda, Maryland, USA; Department of Anatomy, Physiology & Genetics, F. Edward Hebert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA
| | - Gauthaman Sukumar
- The American Genome Center, Uniformed Services University, Bethesda, Maryland, USA; Department of Anatomy, Physiology & Genetics, F. Edward Hebert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA
| | - Daniel Hupalo
- The American Genome Center, Uniformed Services University, Bethesda, Maryland, USA; Department of Anatomy, Physiology & Genetics, F. Edward Hebert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA
| | - Jonathan M Dreyfuss
- Bioinformatics and Biostatistics Core, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Hui Pan
- Bioinformatics and Biostatistics Core, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Ying Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Linh Pham
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Xunwei Wu
- Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ivan Jozic
- Wound Healing and Regenerative Medicine Research Program, Dr. Phillp Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - R Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Sunghun Cho
- Department of Dermatology, F. Edward Hebert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA; Department of Dermatology, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Jon H Meyerle
- Department of Dermatology, F. Edward Hebert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA; Department of Dermatology, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Joshua Tam
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA.
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Chato-Astrain J, Roda O, Carriel V, Hita-Contreras F, Sánchez-Montesinos I, Alaminos M, Hernández-Cortés P. Histological characterization of the human scapholunate ligament. Microsc Res Tech 2024; 87:257-271. [PMID: 37767790 DOI: 10.1002/jemt.24428] [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: 01/12/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
The scapholunate interosseous ligament (SLIL) plays a fundamental role in stabilizing the wrist bones, and its disruption is a frequent cause of wrist arthrosis and disfunction. Traditionally, this structure is considered to be a variety of fibrocartilaginous tissue and consists of three regions: dorsal, membranous and palmar. Despite its functional relevance, the exact composition of the human SLIL is not well understood. In the present work, we have analyzed the human SLIL and control tissues from the human hand using an array of histological, histochemical and immunohistochemical methods to characterize each region of this structure. Results reveal that the SLIL is heterogeneous, and each region can be subdivided in two zones that are histologically different to the other zones. Analysis of collagen and elastic fibers, and several proteoglycans, glycoproteins and glycosaminoglycans confirmed that the different regions can be subdivided in two zones that have their own structure and composition. In general, all parts of the SLIL resemble the histological structure of the control articular cartilage, especially the first part of the membranous region (zone M1). Cells showing a chondrocyte-like phenotype as determined by S100 were more abundant in M1, whereas the zone containing more CD73-positive stem cells was D2. These results confirm the heterogeneity of the human SLIL and could contribute to explain why certain zones of this structure are more prone to structural damage and why other zones have specific regeneration potential. RESEARCH HIGHLIGHTS: Application of an array of histological analysis methods allowed us to demonstrate that the human scapholunate ligament is heterogeneous and consists of at least six different regions sharing similarities with the human cartilage, ligament and other anatomical structures.
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Affiliation(s)
- Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Olga Roda
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain
| | - Víctor Carriel
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Fidel Hita-Contreras
- Department of Health Sciences, Faculty of Health Sciences, University of Jaén, Jaén, Spain
| | - Indalecio Sánchez-Montesinos
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Pedro Hernández-Cortés
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Surgery and Surgical Specialties, Faculty of Medicine, University of Granada, Granada, Spain
- Division of Traumatology and Orthopedic Surgery, San Cecilio University Hospital, Granada, Spain
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Leiva K, Trinidad A, Gonzalez I, Espinosa A, Zwick T, Levine JE, Rodriguez MA, Lev-Tov H, Wu W, Kirsner RS, Godavarty A. Development of a Tissue Oxygenation Flow-Based Index Toward Discerning the Healing Status in Diabetic Foot Ulcers. Adv Wound Care (New Rochelle) 2024; 13:22-33. [PMID: 37060195 PMCID: PMC10654646 DOI: 10.1089/wound.2022.0170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/09/2023] [Indexed: 04/16/2023] Open
Abstract
Objective: The objective of this study is to characterize breath-hold (BH)-induced oxygenation changes in diabetic foot ulcers (DFUs) and develop an oxygenation flow index (OFI) to discern nonhealing from healing DFUs. Approach: The imaging approach utilizes an innovative BH stimulus that induces vasoconstriction and measures for altering oxygenation flow in and around the tissues of DFUs and controls. The modified Beer-Lambert law was utilized to calculate hemoglobin-based spatiotemporal oxygenation maps in terms of oxygen saturation. Results: We found controls had synchronous BH-induced oxygenation changes across the dorsal (OFI: 29.0%) and plantar (OFI: 57.6%) aspects of the foot. Nonhealing DFUs, however, had less synchronous BH-induced oxygenation changes (OFI <28%). In addition, two complicated healing DFU cases, or cases with underlying issues or poor long-term healing outcomes, were observed to have OFIs <28%. Innovation: An OFI was developed to differentiate nonhealing DFUs from healing DFUs using a single, noncontact, near-infrared optical scanner for spatiotemporal oxygenation monitoring. The OFI has potential to provide immediate feedback on the microcirculation in DFUs, through hemoglobin-based oxygenation parameters. Conclusion: A preliminary threshold (OFI <28%) could differentiate nonhealing and complicated DFUs from healing DFUs. The overall oxygenation flow pattern was less synchronous (or the OFI value reduced) in the nonwound areas of the feet that were nonhealing. In other words, the reduced OFI value (<28%) in the entire foot, excluding the wound region is a possible indicator that the wound may not heal.
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Affiliation(s)
- Kevin Leiva
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida, USA
| | - Alexander Trinidad
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida, USA
| | - Isabella Gonzalez
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida, USA
| | - Aliette Espinosa
- Dr. Phillip Frost Department of Dermatology, UM Wound Care Center, University of Miami, Miami, Florida, USA
| | - Thomas Zwick
- Dr. Phillip Frost Department of Dermatology, UM Wound Care Center, University of Miami, Miami, Florida, USA
| | - Jason Edward Levine
- Dr. Phillip Frost Department of Dermatology, UM Wound Care Center, University of Miami, Miami, Florida, USA
| | - Magaly Adelaida Rodriguez
- Dr. Phillip Frost Department of Dermatology, UM Wound Care Center, University of Miami, Miami, Florida, USA
| | - Hadar Lev-Tov
- Dr. Phillip Frost Department of Dermatology, UM Wound Care Center, University of Miami, Miami, Florida, USA
| | - Wensong Wu
- Department of Mathematics and Statistics, Florida International University, Miami, Florida, USA
| | - Robert S. Kirsner
- Dr. Phillip Frost Department of Dermatology, UM Wound Care Center, University of Miami, Miami, Florida, USA
| | - Anuradha Godavarty
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida, USA
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Abstract
Friction blisters on the feet commonly occur when individuals engage in active pursuits such as running, hiking, and military training. The high prevalence of blisters in active individuals underscores the fact that the pathomechanics of this condition are not fully understood. The traditional blister causation paradigm revolves around heat, moisture, and friction. In reality, foot friction blisters are caused by repetitive shear deformation. The 3 fundamental elements of blister-inducing shear deformation are (1) motion of bone, (2) high friction force, and (3) repetition of the resulting shear events. Rubbing at the skin surface is not a mechanism for friction blister formation. To that end, prevention of the friction blister continues to be an elusive quest for both the patient and the treating clinician. In this article, we aimed to highlight the limitations of the long-held blister-causation paradigm and offer a new explanation.
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Affiliation(s)
- Rebecca Rushton
- Esperance Podiatry and BlisterPod, Esperance, Western Australia, Australia
| | - Douglas Richie
- California School of Podiatric Medicine at Samuel Merritt University, Seal Beach
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Ibáñez-Cortés M, Martín-Piedra MÁ, Blanco-Elices C, García-García ÓD, España-López A, Fernández-Valadés R, Sánchez-Quevedo MDC, Alaminos M, Chato-Astrain J, Garzón I. Histological characterization of the human masticatory oral mucosa. A histochemical and immunohistochemical study. Microsc Res Tech 2023; 86:1712-1724. [PMID: 37650503 DOI: 10.1002/jemt.24398] [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: 05/12/2023] [Revised: 07/19/2023] [Accepted: 08/06/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Histology of human oral mucosa is closely related with its function and anatomical location, and a proper characterization of the human masticatory oral mucosa could be very useful in periodontal pathology. OBJECTIVE In the present work, we have carried out a comprehensive study in order to determine the main histological features of parakeratinized (POM) and orthokeratinized (OOM) masticatory human oral mucosa using light and electron microscopy. METHODS To perform this, we have used several histological, histochemical and immunohistochemical methods to detect key markets at the epithelial, basement membrane and connective tissue levels. RESULTS Our results demonstrated that POM and OOM share many histological similarities, as expected. However, important differences were observed at the epithelial layer of POM, that was significantly thicker than the epithelial layer found in OOM, especially due to a higher number of cells at the stratum spinosum. The expression pattern of CK10 and filaggrin revealed intense signal expression in OOM as compared to POM. Collagen and proteoglycans were more abundant in OOM stroma than in POM. No differences were found for blood vessels and basement membrane. CONCLUSION These results may contribute to a better understanding of the pathological conditions affecting the human masticatory oral mucosa. In addition, these findings could be useful for the generation of different types of oral mucosa by tissue engineering techniques. RESEARCH HIGHLIGHTS Microscopical features of parakeratinized and orthokeratinized masticatory human oral mucosa showed important differences at both, epithelial and stromal levels. Parakeratinized masticatory human oral mucosa exert thicker epithelial layer, especially, at the stratum spinosum in comparison to orthokeratinized human oral mucosa. Cytokeratin 10 and filaggrin human epithelial markers were intensively expressed in orthokeratinized masticatory human oral mucosa in comparison to parakeratinized masticatory human oral mucosa. At the stromal level, orthokeratinized masticatory human oral mucosa exhibit higher levels of collagen and proteoglycans than parakeratinized masticatory oral mucosa. The deep knowledge of histological features of masticatory oral mucosa could lead to a better understanding of oral mucosa pathology and advanced treatments.
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Affiliation(s)
- Miguel Ibáñez-Cortés
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Doctoral Program in Biomedicine, University of Granada, Granada, Spain
| | - Miguel Ángel Martín-Piedra
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Cristina Blanco-Elices
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Óscar Darío García-García
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Antonio España-López
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University Hospital Virgen de las Nieves, Granada, Spain
| | - Ricardo Fernández-Valadés
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
- Division of Pediatric Surgery, University Hospital Virgen de las Nieves, Granada, Spain
| | - María Del Carmen Sánchez-Quevedo
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
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8
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Dobson JL, Pike TW, Gonzalez-Rodriguez J, Soulsbury CD. Identifying and locating carotenoids in supra-orbital combs of male black grouse (Lyurus tetrix) using Raman and transmission electron microscopy: A histological study using rehydrated tissue samples. J Morphol 2023; 284:e21652. [PMID: 37990765 DOI: 10.1002/jmor.21652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 11/23/2023]
Abstract
Colourful signals have long been implicated as indicators of individual quality in animals. Bare-skin signals are an understudied aspect of avian colouration compared with plumage studies, despite displaying rapid changes in size and colour in response to different environmental or physiological stressors. Even fewer studies have focused on the underlying histology of these structures and the importance this plays in the resulting skin colour. Using the Black Grouse (Lyrurus tetrix), we identified the underlying structure of individual dermal spikes, which make up the red supra-orbital comb (a known integumentary signal of male quality), and highlight visual structural differences between combs of different sizes. In addition, we used Raman spectroscopy to indicate the presence of carotenoids within the tissue, something that had previously only been inferred through characteristic reflectance patterns. An increased understanding of the structural basis of colour of featherless parts of the skin opens up exciting new avenues for interpreting the information content of integumentary signals.
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Affiliation(s)
- Jessica L Dobson
- Department of Life Sciences, School of Life and Environmental Sciences, University of Lincoln, Lincoln, Brayford Pool, UK
| | - Thomas W Pike
- Department of Life Sciences, School of Life and Environmental Sciences, University of Lincoln, Lincoln, Brayford Pool, UK
| | - Jose Gonzalez-Rodriguez
- Joseph Banks Laboratories, School of Chemistry, University of Lincoln, Lincoln, Brayford Pool, UK
| | - Carl D Soulsbury
- Department of Life Sciences, School of Life and Environmental Sciences, University of Lincoln, Lincoln, Brayford Pool, UK
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9
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Meguid AMA, Ghazally A, Ahmed AM, Bakr RM. Fractional carbon dioxide laser alone and as an assisted drug delivery for treatment of alopecia areata: a clinical, dermoscopic and immunohistochemical study. Arch Dermatol Res 2023; 315:1675-1688. [PMID: 36809409 PMCID: PMC10338624 DOI: 10.1007/s00403-023-02565-x] [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: 12/22/2022] [Revised: 12/22/2022] [Accepted: 02/01/2023] [Indexed: 02/23/2023]
Abstract
Alopecia areata (AA) is a common cause of hair loss with no available universally successful treatment. Thus, new innovative treatments are urgently needed. This research aimed to evaluate the effectiveness of fractional carbon dioxide laser (FCL) alone or combined with triamcinolone acetonide (TA) solution, platelet-rich plasma (PRP), or vitamin D3 solution in treating AA. Sixty-four AA patients with 185 lesions were recruited and divided into four treatment groups. All patients received FCL either alone (group A, n = 19) or followed by topical TA (group B, n = 16) or PRP (group C, n = 15), or vitamin D3 solution (group D, n = 14). The response was assessed using Alopecia Areata Severity Index (AASI), MacDonald Hull and Norris grading, and trichoscopy. Histopathological features and immunohistochemical decorin expression were studied. All groups showed significant improvement in AASI compared to the baseline, with insignificant differences between them. Post-treatment, trichoscopic features of disease activity significantly decreased in all groups. Compared to control biopsies, both anagen follicles and decorin expression were significantly decreased in all pretreatment specimens. After treatment, all groups showed significantly increased anagen follicles and decorin expression compared to the baseline. Accordingly, FCL is an effective treatment for AA alone or combined with TA, PRP, or vitamin D3 solution. In AA, Decorin expression was downregulated, while enhanced expression following successful treatment occurred. This suggests the role of decorin in AA pathogenesis. However, further research is still recommended to clarify the exact role of decorin in AA pathogenesis and to investigate the therapeutic benefits of decorin-based therapy.
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Affiliation(s)
- Azza Mahfouz Abdel Meguid
- Dermatology, Venereology and Andrology Department, Faculty of Medicine, Assiut University, Assiut, 71515 Egypt
| | - Alaa Ghazally
- Dermatology, Venereology and Andrology Department, Faculty of Medicine, Assiut University, Assiut, 71515 Egypt
| | - Asmaa M. Ahmed
- Pathology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Radwa M. Bakr
- Dermatology, Venereology and Andrology Department, Faculty of Medicine, Assiut University, Assiut, 71515 Egypt
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10
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Liu TY, Hughes MW, Wang HV, Yang WC, Chuong CM, Wu P. Molecular and Cellular Characterization of Avian Reticulate Scales Implies the Evo-Devo Novelty of Skin Appendages in Foot Sole. J Dev Biol 2023; 11:30. [PMID: 37489331 PMCID: PMC10366821 DOI: 10.3390/jdb11030030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/25/2023] [Accepted: 06/27/2023] [Indexed: 07/26/2023] Open
Abstract
Among amniotic skin appendages, avian feathers and mammalian hairs protect their stem cells in specialized niches, located in the collar bulge and hair bulge, respectively. In chickens and alligators, label retaining cells (LRCs), which are putative stem cells, are distributed in the hinge regions of both avian scutate scales and reptilian overlapping scales. These LRCs take part in scale regeneration. However, it is unknown whether other types of scales, for example, symmetrically shaped reticulate scales, have a similar way of preserving their stem cells. In particular, the foot sole represents a special interface between animal feet and external environments, with heavy mechanical loading. This is different from scutate-scale-covered metatarsal feet that function as protection. Avian reticulate scales on foot soles display specialized characteristics in development. They do not have a placode stage and lack β-keratin expression. Here, we explore the molecular and cellular characteristics of avian reticulate scales. RNAscope analysis reveals different molecular profiles during surface and hinge determination compared with scutate scales. Furthermore, reticulate scales express Keratin 15 (K15) sporadically in both surface- and hinge-region basal layer cells, and LRCs are not localized. Upon wounding, the reticulate scale region undergoes repair but does not regenerate. Our results suggest that successful skin appendage regeneration requires localized stem cell niches to guide regeneration.
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Affiliation(s)
- Tzu-Yu Liu
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan
- Marine Biology and Cetacean Research Center, National Cheng Kung University, Tainan 701, Taiwan
| | - Michael W Hughes
- Institute of Clinical Medicine and Department of Life Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Hao-Ven Wang
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan
- Marine Biology and Cetacean Research Center, National Cheng Kung University, Tainan 701, Taiwan
| | - Wei-Cheng Yang
- School of Veterinary Medicine, National Taiwan University, Taipei 106216, Taiwan
| | - Cheng-Ming Chuong
- Department of Pathology, Keck School of Medicine, University Southern California, Los Angeles, CA 90033, USA
| | - Ping Wu
- Department of Pathology, Keck School of Medicine, University Southern California, Los Angeles, CA 90033, USA
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11
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Cajas D, Guajardo E, Jara-Rosales S, Nuñez C, Vargas R, Carriel V, Campos A, Milla L, Orihuela P, Godoy-Guzman C. Molecules involved in the sperm interaction in the human uterine tube: a histochemical and immunohistochemical approach. Eur J Histochem 2023; 67. [PMID: 37052420 PMCID: PMC10141343 DOI: 10.4081/ejh.2023.3513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 02/27/2023] [Indexed: 04/14/2023] Open
Abstract
In humans, even where millions of spermatozoa are deposited upon ejaculation in the vagina, only a few thousand enter the uterine tube (UT). Sperm transiently adhere to the epithelial cells lining the isthmus reservoir, and this interaction is essential in coordinating the availability of functional spermatozoa for fertilization. The binding of spermatozoa to the UT epithelium (mucosa) occurs due to interactions between cell-adhesion molecules on the cell surfaces of both the sperm and the epithelial cell. However, in humans, there is little information about the molecules involved. The aim of this study was to perform a histological characterization of the UT focused on determining the tissue distribution and deposition of some molecules associated with cell adhesion (F-spondin, galectin-9, osteopontin, integrin αV/β3) and UT's contractile activity (TNFα-R1, TNFα-R2) in the follicular and luteal phases. Our results showed the presence of galectin-9, F-spondin, osteopontin, integrin αV/β3, TNFα-R1, and TNFα-R2 in the epithelial cells in ampullar and isthmic segments during the menstrual cycle. Our results suggest that these molecules could form part of the sperm-UT interactions. Future studies will shed light on the specific role of each of the identified molecules.
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Affiliation(s)
- David Cajas
- Escuela de Medicina, Centro de Investigación Biomédica y Aplicada (CIBAP), Laboratorio de ingeniería de tejidos, Universidad de Santiago de Chile (USACH), Santiago.
| | - Emanuel Guajardo
- Facultad de Química y Biología, Laboratorio de Inmunología de la Reproducción, Universidad de Santiago de Chile (USACH); Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas and Facultad de Medicina, Universidad de Chile, Santiago.
| | - Sergio Jara-Rosales
- Escuela de Obstetricia, Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, Sede Los Leones, Santiago; Programa de Doctorado en Enfermedades Crónicas, Universidad San Sebastián, Sede Los Leones.
| | - Claudio Nuñez
- Servicio de Ginecología y Obstetricia, Hospital San José, Santiago.
| | - Renato Vargas
- Servicio de Ginecología y Obstetricia, Hospital San José, Santiago.
| | - Victor Carriel
- Department of Histology, Tissue Engineering Group, University of Granada, Spain; Instituto de Investigación Biosanitaria ibis.GRANADA, Granada.
| | - Antonio Campos
- Department of Histology, Tissue Engineering Group, University of Granada, Spain; Instituto de Investigación Biosanitaria ibis.GRANADA, Granada.
| | - Luis Milla
- Escuela de Medicina, Centro de Investigación Biomédica y Aplicada (CIBAP), Laboratorio de ingeniería de tejidos, Universidad de Santiago de Chile (USACH), Santiago.
| | - Pedro Orihuela
- Facultad de Química y Biología, Laboratorio de Inmunología de la Reproducción, Universidad de Santiago de Chile (USACH), Santiago.
| | - Carlos Godoy-Guzman
- Escuela de Medicina, Centro de Investigación Biomédica y Aplicada (CIBAP), Laboratorio de ingeniería de tejidos, Universidad de Santiago de Chile (USACH); Universidad de Santiago de Chile (USACH), Escuela de Medicina, Unidad de Histología, Santiago.
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12
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Sensory nerve sprouting of human skin explants confers improved survival to Merkel cells independent of Merkel cell-neurite complexes. J Invest Dermatol 2023:S0022-202X(23)00157-4. [PMID: 36863447 DOI: 10.1016/j.jid.2023.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 03/02/2023]
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13
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de Szalay S, Wertz PW. Protective Barriers Provided by the Epidermis. Int J Mol Sci 2023; 24:ijms24043145. [PMID: 36834554 PMCID: PMC9961209 DOI: 10.3390/ijms24043145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
The skin is the largest organ of the body and consists of an epidermis, dermis and subcutaneous adipose tissue. The skin surface area is often stated to be about 1.8 to 2 m2 and represents our interface with the environment; however, when one considers that microorganisms live in the hair follicles and can enter sweat ducts, the area that interacts with this aspect of the environment becomes about 25-30 m2. Although all layers of the skin, including the adipose tissue, participate in antimicrobial defense, this review will focus mainly on the role of the antimicrobial factors in the epidermis and at the skin surface. The outermost layer of the epidermis, the stratum corneum, is physically tough and chemically inert which protects against numerous environmental stresses. It provides a permeability barrier which is attributable to lipids in the intercellular spaces between the corneocytes. In addition to the permeability barrier, there is an innate antimicrobial barrier at the skin surface which involves antimicrobial lipids, peptides and proteins. The skin surface has a low surface pH and is poor in certain nutrients, which limits the range of microorganisms that can survive there. Melanin and trans-urocanic acid provide protection from UV radiation, and Langerhans cells in the epidermis are poised to monitor the local environment and to trigger an immune response as needed. Each of these protective barriers will be discussed.
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Affiliation(s)
- Sarah de Szalay
- Sarah de Szalay Consulting, LLC, Wesy Milford, NJ 07480, USA
| | - Philip W. Wertz
- Dows Institute for Dental Research, College of Dentistry, University of Iowa, Iowa City, IA 52240, USA
- Correspondence:
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14
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Stalnaker KJ, Fuchs C, Slate A, Camacho JN, Pham L, Wang Y, Anderson RR, Tam J. Boot camp: Training and dressing regimens for modeling plantar wounds in the swine. Lab Anim 2023; 57:59-68. [PMID: 35962527 DOI: 10.1177/00236772221111058] [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: 11/15/2022]
Abstract
Foot ulceration annually affects millions of patients and accounts for billions of dollars in medical expenses in the US alone. Many previous studies have investigated co-morbidities associated with impaired healing, such as microbial infection, compromised circulation, and diabetes. By comparison, little is known about how wound healing proceeds in plantar skin, despite its many unique specializations related to its load-bearing function. One of the main challenges in modeling plantar wounds is the difficulty in maintaining wound dressings, as animals generally have a low tolerance to wearing bandages on their feet. With assistance from the MGH Center for Comparative Medicine, we developed a positive reinforcement-based behavioral training regimen that successfully induced tolerance for plantar dressings in swine, which is a critical first step towards enabling in vivo study of the wound healing process in this highly specialized skin area. This training program will be described in detail in this manuscript.
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Affiliation(s)
| | - Christiane Fuchs
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, USA.,Department of Dermatology, Harvard Medical School, Boston, USA
| | - Andrea Slate
- Center for Comparative Medicine, Massachusetts General Hospital, Boston, USA
| | - Jennifer N Camacho
- Center for Comparative Medicine, Massachusetts General Hospital, Boston, USA
| | - Linh Pham
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, USA
| | - Ying Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, USA.,Department of Dermatology, Harvard Medical School, Boston, USA
| | - R Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, USA.,Department of Dermatology, Harvard Medical School, Boston, USA
| | - Joshua Tam
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, USA.,Department of Dermatology, Harvard Medical School, Boston, USA
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15
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Wiedemann J, Billi AC, Bocci F, Kashgari G, Xing E, Tsoi LC, Meller L, Swindell WR, Wasikowski R, Xing X, Ma F, Gharaee-Kermani M, Kahlenberg JM, Harms PW, Maverakis E, Nie Q, Gudjonsson JE, Andersen B. Differential cell composition and split epidermal differentiation in human palm, sole, and hip skin. Cell Rep 2023; 42:111994. [PMID: 36732947 PMCID: PMC9939370 DOI: 10.1016/j.celrep.2023.111994] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 08/31/2022] [Accepted: 01/04/2023] [Indexed: 01/26/2023] Open
Abstract
Palmoplantar skin is structurally and functionally unique, but the transcriptional programs driving this specialization are unclear. Here, we use bulk and single-cell RNA sequencing of human palm, sole, and hip skin to describe the distinguishing characteristics of palmoplantar and non-palmoplantar skin while also uncovering differences between palmar and plantar sites. Our approach reveals an altered immune environment in palmoplantar skin, with downregulation of diverse immunological processes and decreased immune cell populations. Further, we identify specific fibroblast populations that appear to orchestrate key differences in cell-cell communication in palm, sole, and hip. Dedicated keratinocyte analysis highlights major differences in basal cell fraction among the three sites and demonstrates the existence of two spinous keratinocyte populations constituting parallel, site-selective epidermal differentiation trajectories. In summary, this deep characterization of highly adapted palmoplantar skin contributes key insights into the fundamental biology of human skin and provides a valuable data resource for further investigation.
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Affiliation(s)
- Julie Wiedemann
- Mathematical, Computational and Systems Biology (MCSB) Program, University of California, Irvine, Irvine, CA, USA
| | - Allison C Billi
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Federico Bocci
- Department of Mathematics, University of California, Irvine, Irvine, CA, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA
| | - Ghaidaa Kashgari
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Enze Xing
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Leo Meller
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - William R Swindell
- Department of Internal Medicine, The Jewish Hospital, Cincinnati, OH, USA
| | - Rachael Wasikowski
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Xianying Xing
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Feiyang Ma
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Mehrnaz Gharaee-Kermani
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA; Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - J Michelle Kahlenberg
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA; Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Paul W Harms
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Emanual Maverakis
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Qing Nie
- Department of Mathematics, University of California, Irvine, Irvine, CA, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA; Department of Developmental & Cell Biology, School of Biological Sciences, University of California, Irvine, Irvine, CA, USA
| | - Johann E Gudjonsson
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Bogi Andersen
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA; Department of Medicine, School of Medicine, University of California, Irvine, Irvine, CA, USA.
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16
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Tam J. The case for considering volar skin in a "separate status" for wound healing. Front Med (Lausanne) 2023; 10:1156828. [PMID: 37035315 PMCID: PMC10076700 DOI: 10.3389/fmed.2023.1156828] [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: 02/01/2023] [Accepted: 03/07/2023] [Indexed: 04/11/2023] Open
Abstract
Foot ulcers, particularly in the diabetic setting, are a major medical and socioeconomic challenge. While the effects of diabetes and its various sequelae have been extensively studied, in the wound field it is commonly assumed that the wound healing process is essentially identical between different skin types, despite the many well-known specializations in palmoplantar skin, most of which are presumed to be evolutionary adaptations for weightbearing. This article will examine how these specializations could alter the wound healing trajectory and contribute to the pathology of foot ulcers.
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Affiliation(s)
- Joshua Tam
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, United States
- Department of Dermatology, Harvard Medical School, Boston, MA, United States
- *Correspondence: Joshua Tam,
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17
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Blanco-Elices C, Morales-Álvarez C, Chato-Astrain J, González-Gallardo C, Ávila-Fernández P, Campos F, Carmona R, Martín-Piedra MÁ, Garzón I, Alaminos M. Development of stromal differentiation patterns in heterotypical models of artificial corneas generated by tissue engineering. Front Bioeng Biotechnol 2023; 11:1124995. [PMID: 37034263 PMCID: PMC10076743 DOI: 10.3389/fbioe.2023.1124995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/16/2023] [Indexed: 04/11/2023] Open
Abstract
Purpose: We carried out a histological characterization analysis of the stromal layer of human heterotypic cornea substitutes generated with extra-corneal cells to determine their putative usefulness in tissue engineering. Methods: Human bioartificial corneas were generated using nanostructured fibrin-agarose biomaterials with corneal stromal cells immersed within. To generate heterotypical corneas, umbilical cord Wharton's jelly stem cells (HWJSC) were cultured on the surface of the stromal substitutes to obtain an epithelial-like layer. These bioartificial corneas were compared with control native human corneas and with orthotypical corneas generated with human corneal epithelial cells on top of the stromal substitute. Both the corneal stroma and the basement membrane were analyzed using histological, histochemical and immunohistochemical methods in samples kept in culture and grafted in vivo for 12 months in the rabbit cornea. Results: Our results showed that the stroma of the bioartificial corneas kept ex vivo showed very low levels of fibrillar and non-fibrillar components of the tissue extracellular matrix. However, in vivo implantation resulted in a significant increase of the contents of collagen, proteoglycans, decorin, keratocan and lumican in the corneal stroma, showing higher levels of maturation and spatial organization of these components. Heterotypical corneas grafted in vivo for 12 months showed significantly higher contents of collagen fibers, proteoglycans and keratocan. When the basement membrane was analyzed, we found that all corneas grafted in vivo showed intense PAS signal and higher contents of nidogen-1, although the levels found in human native corneas was not reached, and a rudimentary basement membrane was observed using transmission electron microscopy. At the epithelial level, HWJSC used to generate an epithelial-like layer in ex vivo corneas were mostly negative for p63, whereas orthotypical corneas and heterotypical corneas grafted in vivo were positive. Conclusion: These results support the possibility of generating bioengineered artificial corneas using non-corneal HWJSC. Although heterotypical corneas were not completely biomimetic to the native human corneas, especially ex vivo, in vivo grafted corneas demonstrated to be highly biocompatible, and the animal cornea became properly differentiated at the stroma and basement membrane compartments. These findings open the door to the future clinical use of these bioartificial corneas.
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Affiliation(s)
- Cristina Blanco-Elices
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Carmen Morales-Álvarez
- GENYO, Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, PTS Granada, Granada, Spain
- Department of Biochemistry and Molecular Biology III, Faculty of Medicine, University of Granada, Granada, Spain
| | - Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | | | - Paula Ávila-Fernández
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, Granada, Spain
| | - Fernando Campos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ramón Carmona
- Department of Cell Biology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Miguel Ángel Martín-Piedra
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- *Correspondence: Miguel Ángel Martín-Piedra, ; Ingrid Garzón,
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- *Correspondence: Miguel Ángel Martín-Piedra, ; Ingrid Garzón,
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
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18
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Malheiro A, Thon M, Lourenço AF, Gamardo AS, Chandrakar A, Gibbs S, Wieringa P, Moroni L. A Humanized In Vitro Model of Innervated Skin for Transdermal Analgesic Testing. Macromol Biosci 2023; 23:e2200387. [PMID: 36222273 DOI: 10.1002/mabi.202200387] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Indexed: 01/19/2023]
Abstract
Sensory innervation of the skin is essential for its function, homeostasis, and wound healing mechanisms. Thus, to adequately model the cellular microenvironment and function of native skin, in vitro human skin equivalents (hSE) containing a sensory neuron population began to be researched. In this work, a fully human 3D platform of hSE innervated by induced pluripotent stem cell-derived nociceptor neurospheres (hNNs), mimicking the native mode of innervation, is established. Both the hSE and nociceptor population exhibit morphological and phenotypical characteristics resembling their native counterparts, such as epidermal and dermal layer formation and nociceptor marker exhibition, respectively. In the co-culture platform, neurites develop from the hNNs and navigate in 3D to innervate the hSE from a distance. To probe both skin and nociceptor functionality, a clinically available capsaicin patch (Qutenza) is applied directly over the hSE section and neuron reaction is analyzed. Application of the patch causes an exposure time-dependent neurite regression and degeneration. In platforms absent of hSE, axonal degeneration is further increased, highlighting the role of the skin construct as a barrier. In sum, an in vitro tool of functional innervated skin with high interest for preclinical research is established.
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Affiliation(s)
- Afonso Malheiro
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
| | - Maria Thon
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Centre, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, 1081HV, The Netherlands
| | - Ana Filipa Lourenço
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
| | - Adrián Seijas Gamardo
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
| | - Amit Chandrakar
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
| | - Susan Gibbs
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Centre, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, 1081HV, The Netherlands.,Department of Oral Cell Biology, Academic Centre for Dentistry (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, 1182DB, The Netherlands
| | - Paul Wieringa
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
| | - Lorenzo Moroni
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Universiteitssingel 40, Maastricht, 6229ER, The Netherlands
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19
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Systematic review of the reconstructive uses of the extensor digitorum brevis flap. EUROPEAN JOURNAL OF PLASTIC SURGERY 2022. [DOI: 10.1007/s00238-022-01993-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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20
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Grady EM, Ozyurekoglu T. Unique Variation of Barber's Disease: A Case Report. Plast Reconstr Surg Glob Open 2022; 10:e4513. [PMID: 36128433 PMCID: PMC9481439 DOI: 10.1097/gox.0000000000004513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
Barber's disease is an occupational-related disease in which small hair fragments penetrate the dermis of the hand. Although there is limited literature related to the topic, barber's disease classically involves the interdigital space of hairdressers' hands. In this case report, we report an undescribed variation of the condition. The case involves a female hair stylist who presented to the office with numerous hair splinters under the nail plate of her dominant thumb. Subsequent evaluation revealed cystic destruction of the distal phalanx of the thumb. Despite preoperative suspicion for osteomyelitis, pathology revealed reactive bone fragments associated with surrounding tenosynovial tissue and no evidence of osteomyelitis. The proposed etiology of this finding is the inflammatory process related to a hair abscess that formed with a sinus originating in the lateral nail fold. The goal of the case report is to bring to light yet another variation of barber's disease.
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Affiliation(s)
- Edmund Michael Grady
- Christine M. Kleinert Institute for Hand and Microsurgery, Kleinert Kutz Hand Care Center, University of Louisville Department of Surgery, Louisville, Ky
| | - Tuna Ozyurekoglu
- Christine M. Kleinert Institute for Hand and Microsurgery, Kleinert Kutz Hand Care Center, University of Louisville Department of Surgery, Louisville, Ky
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21
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Optical Behavior of Human Skin Substitutes: Absorbance in the 200-400 nm UV Range. Biomedicines 2022; 10:biomedicines10071640. [PMID: 35884945 PMCID: PMC9313464 DOI: 10.3390/biomedicines10071640] [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: 06/14/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 11/25/2022] Open
Abstract
The most recent generation of bioengineered human skin allows for the efficient treatment of patients with severe skin defects. Despite UV sunlight can seriously affect human skin, the optical behavior in the UV range of skin models is still unexplored. In the present study, absorbance and transmittance of the UGRSKIN bioartificial skin substitute generated with human skin cells combined with fibrin-agarose biomaterials were evaluated for: UV-C (200−280 nm), -B (280−315 nm), and -A (315−400 nm) spectral range after 7, 14, 21 and 28 days of ex vivo development. The epidermis of the bioartificial skin substitute was able to mature and differentiate in a time-dependent manner, expressing relevant molecules able to absorb most of the incoming UV radiation. Absorbance spectral behavior of the skin substitutes showed similar patterns to control native skin (VAF > 99.4%), with values 0.85−0.90 times lower than control values at 7 and 14- days and 1.05−1.10 times the control values at 21- and 28-days. UV absorbance increased, and UV transmission decreased with culture time, and comparable results to the control were found at 21 and 28 days. These findings support the use of samples corresponding to 21 or 28 days of development for clinical purposes due to their higher histological similarities with native skin, but also because of their absorbance of UV radiation.
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22
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Cases-Perera O, Blanco-Elices C, Chato-Astrain J, Miranda-Fernández C, Campos F, Crespo PV, Sánchez-Montesinos I, Alaminos M, Martín-Piedra MA, Garzón I. Development of secretome-based strategies to improve cell culture protocols in tissue engineering. Sci Rep 2022; 12:10003. [PMID: 35705659 PMCID: PMC9200715 DOI: 10.1038/s41598-022-14115-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 06/01/2022] [Indexed: 12/14/2022] Open
Abstract
Advances in skin tissue engineering have promoted the development of artificial skin substitutes to treat large burns and other major skin loss conditions. However, one of the main drawbacks to bioengineered skin is the need to obtain a large amount of viable epithelial cells in short periods of time, making the skin biofabrication process challenging and slow. Enhancing skin epithelial cell cultures by using mesenchymal stem cells secretome can favor the scalability of manufacturing processes for bioengineered skin. The effects of three different types of secretome derived from human mesenchymal stem cells, e.g. hADSC-s (adipose cells), hDPSC-s (dental pulp) and hWJSC-s (umbilical cord), were evaluated on cultured skin epithelial cells during 24, 48, 72 and 120 h to determine the potential of this product to enhance cell proliferation and improve biofabrication strategies for tissue engineering. Then, secretomes were applied in vivo in preliminary analyses carried out on Wistar rats. Results showed that the use of secretomes derived from mesenchymal stem cells enhanced currently available cell culture protocols. Secretome was associated with increased viability, proliferation and migration of human skin epithelial cells, with hDPSC-s and hWJSC-s yielding greater inductive effects than hADSC-s. Animals treated with hWJSC-s and especially, hDPSC-s tended to show enhanced wound healing in vivo with no detectable side effects. Mesenchymal stem cells derived secretomes could be considered as a promising approach to cell-free therapy able to improve skin wound healing and regeneration.
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Affiliation(s)
- O Cases-Perera
- Department of Plastic Surgery, University Hospital Virgen de las Nieves, Granada, Spain
- Doctoral Program in Biomedicine, University of Granada, Granada, Spain
| | - C Blanco-Elices
- Doctoral Program in Biomedicine, University of Granada, Granada, Spain
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - J Chato-Astrain
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - C Miranda-Fernández
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
| | - F Campos
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - P V Crespo
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - I Sánchez-Montesinos
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
- Department of Human Anatomy and Embryology, University of Granada, Granada, Spain
| | - M Alaminos
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain.
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain.
| | - M A Martín-Piedra
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain.
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain.
| | - I Garzón
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
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23
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Ortiz-Arrabal O, Chato-Astrain J, Crespo PV, Garzón I, Mesa-García MD, Alaminos M, Gómez-Llorente C. Biological Effects of Maslinic Acid on Human Epithelial Cells Used in Tissue Engineering. Front Bioeng Biotechnol 2022; 10:876734. [PMID: 35662841 PMCID: PMC9159156 DOI: 10.3389/fbioe.2022.876734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/08/2022] [Indexed: 12/04/2022] Open
Abstract
In the present work, we evaluated the potential of maslinic acid (MA) to improve currently available keratinocyte culture methods for use in skin tissue engineering. Results showed that MA can increase cell proliferation and WST-1 activity of human keratinocytes after 24, 48, and 72 h, especially at the concentration of 5 μg/ml, without affecting cell viability. This effect was associated to a significant increase of KI-67 protein expression and upregulation of several genes associated to cell proliferation (PCNA) and differentiation (cytokeratins, intercellular junctions and basement membrane related genes). When human keratinocytes were isolated from skin biopsies, we found that MA at the concentration of 5 μg/ml significantly increased the efficiency of the explant and the cell dissociation methods. These results revealed the positive effects of MA to optimize human keratinocyte culture protocols for use in skin tissue engineering.
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Affiliation(s)
- Olimpia Ortiz-Arrabal
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
- Doctoral Program in Biochemistry and Molecular Biology, University of Granada, Granada, Spain
| | - Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Pascual Vicente Crespo
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - María Dolores Mesa-García
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, Campus Universitario de Cartuja, Granada, Spain
- Biomedical Research Center, Institute of Nutrition and Food Technology “José Mataix”, University of Granada, Granada, Spain
- *Correspondence: María Dolores Mesa-García, ; Miguel Alaminos,
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
- *Correspondence: María Dolores Mesa-García, ; Miguel Alaminos,
| | - Carolina Gómez-Llorente
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, Campus Universitario de Cartuja, Granada, Spain
- Biomedical Research Center, Institute of Nutrition and Food Technology “José Mataix”, University of Granada, Granada, Spain
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Theocharidis G, Thomas BE, Sarkar D, Mumme HL, Pilcher WJR, Dwivedi B, Sandoval-Schaefer T, Sîrbulescu RF, Kafanas A, Mezghani I, Wang P, Lobao A, Vlachos IS, Dash B, Hsia HC, Horsley V, Bhasin SS, Veves A, Bhasin M. Single cell transcriptomic landscape of diabetic foot ulcers. Nat Commun 2022; 13:181. [PMID: 35013299 PMCID: PMC8748704 DOI: 10.1038/s41467-021-27801-8] [Citation(s) in RCA: 108] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 11/29/2021] [Indexed: 12/11/2022] Open
Abstract
Diabetic foot ulceration (DFU) is a devastating complication of diabetes whose pathogenesis remains incompletely understood. Here, we profile 174,962 single cells from the foot, forearm, and peripheral blood mononuclear cells using single-cell RNA sequencing. Our analysis shows enrichment of a unique population of fibroblasts overexpressing MMP1, MMP3, MMP11, HIF1A, CHI3L1, and TNFAIP6 and increased M1 macrophage polarization in the DFU patients with healing wounds. Further, analysis of spatially separated samples from the same patient and spatial transcriptomics reveal preferential localization of these healing associated fibroblasts toward the wound bed as compared to the wound edge or unwounded skin. Spatial transcriptomics also validates our findings of higher abundance of M1 macrophages in healers and M2 macrophages in non-healers. Our analysis provides deep insights into the wound healing microenvironment, identifying cell types that could be critical in promoting DFU healing, and may inform novel therapeutic approaches for DFU treatment.
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Affiliation(s)
- Georgios Theocharidis
- The Rongxiang Xu, MD, Center for Regenerative Therapeutics and Joslin-Beth Israel Deaconess Foot Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Beena E Thomas
- Aflac Cancer and Blood Disorders Center, Children Healthcare of Atlanta, Department of Pediatrics and Biomedical Informatics, Emory University, Atlanta, GA, USA
| | - Debasree Sarkar
- Aflac Cancer and Blood Disorders Center, Children Healthcare of Atlanta, Department of Pediatrics and Biomedical Informatics, Emory University, Atlanta, GA, USA
| | - Hope L Mumme
- Aflac Cancer and Blood Disorders Center, Children Healthcare of Atlanta, Department of Pediatrics and Biomedical Informatics, Emory University, Atlanta, GA, USA
| | - William J R Pilcher
- Aflac Cancer and Blood Disorders Center, Children Healthcare of Atlanta, Department of Pediatrics and Biomedical Informatics, Emory University, Atlanta, GA, USA
| | - Bhakti Dwivedi
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | | | - Ruxandra F Sîrbulescu
- Vaccine and Immunotherapy Center, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Antonios Kafanas
- Lincoln County Hospital, Northern Lincolnshire and Goole NHS Foundation Trust, Scunthorpe, UK
| | - Ikram Mezghani
- The Rongxiang Xu, MD, Center for Regenerative Therapeutics and Joslin-Beth Israel Deaconess Foot Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Peng Wang
- The Rongxiang Xu, MD, Center for Regenerative Therapeutics and Joslin-Beth Israel Deaconess Foot Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Antonio Lobao
- The Rongxiang Xu, MD, Center for Regenerative Therapeutics and Joslin-Beth Israel Deaconess Foot Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Ioannis S Vlachos
- Department of Pathology, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, MA, USA
| | - Biraja Dash
- Yale Plastic and Reconstructive Surgery-Wound Center, Yale School of Medicine, New Haven, CT, USA
| | - Henry C Hsia
- Yale Plastic and Reconstructive Surgery-Wound Center, Yale School of Medicine, New Haven, CT, USA
| | - Valerie Horsley
- Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, USA
| | - Swati S Bhasin
- Aflac Cancer and Blood Disorders Center, Children Healthcare of Atlanta, Department of Pediatrics and Biomedical Informatics, Emory University, Atlanta, GA, USA
| | - Aristidis Veves
- The Rongxiang Xu, MD, Center for Regenerative Therapeutics and Joslin-Beth Israel Deaconess Foot Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
| | - Manoj Bhasin
- Aflac Cancer and Blood Disorders Center, Children Healthcare of Atlanta, Department of Pediatrics and Biomedical Informatics, Emory University, Atlanta, GA, USA.
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25
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Truong K, Goldinger SM, Chou S, Howle JR, Veness MJ, Fernandez-Peñas P, Varey AHR. Merkel cell carcinoma in situ: A systematic review of prognosis and management. Australas J Dermatol 2021; 63:e6-e12. [PMID: 34873684 DOI: 10.1111/ajd.13758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/04/2021] [Accepted: 11/15/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Merkel cell carcinoma (MCC) is a rare primary cutaneous neuroendocrine tumour. While dermally invasive MCC is known to have a five-year survival of only 30-40%, the prognosis and management of MCC in situ (MCCis) is not widely reported. OBJECTIVE We present a systematic review to elucidate the prognosis and management of MCCis. METHODS We performed a systematic review, searching three databases to 01 June 2021. Case reports, cohort studies, clinical trials and literature reviews were considered for inclusion. RESULTS We identified 26 cases of MCCis published in the literature with a median age of 74 years and involving 19 males and 7 females. Most cases were on the face and neck (n = 17), followed by upper limb (n = 8) and lower limb (n = 1). Sentinel lymph node biopsy was performed in three patients, and all were negative. One subject underwent adjuvant radiotherapy. No MCCis-associated deaths were reported. CONCLUSION This review suggests that MCCis has an excellent prognosis with minimal, if any, risk of mortality and a very low risk of dermal invasion and recurrence when treated with wide local excision alone. Sentinel lymph node biopsy is unlikely to be useful for MCCis.
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Affiliation(s)
- Kelvin Truong
- Department of Dermatology, Westmead Hospital, Sydney, New South Wales, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Simone M Goldinger
- Department of Dermatology, Westmead Hospital, Sydney, New South Wales, Australia
| | - Shaun Chou
- Department of Tissue Pathology and Diagnostic Oncology, Westmead Hospital, Sydney, New South Wales, Australia
| | - Julie R Howle
- Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Department of Surgical Oncology, Westmead Hospital, Sydney, New South Wales, Australia
| | - Michael J Veness
- Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Department of Radiation Oncology, Westmead Hospital, Sydney, New South Wales, Australia
| | - Pablo Fernandez-Peñas
- Department of Dermatology, Westmead Hospital, Sydney, New South Wales, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Alexander H R Varey
- Department of Dermatology, Westmead Hospital, Sydney, New South Wales, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Department of Plastic and Reconstructive Surgery, Westmead Hospital, Sydney, New South Wales, Australia.,Melanoma Institute Australia, Sydney, New South Wales, Australia
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26
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Gallegos-Alcalá P, Jiménez M, Cervantes-García D, Salinas E. The Keratinocyte as a Crucial Cell in the Predisposition, Onset, Progression, Therapy and Study of the Atopic Dermatitis. Int J Mol Sci 2021; 22:ijms221910661. [PMID: 34639001 PMCID: PMC8509070 DOI: 10.3390/ijms221910661] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 12/24/2022] Open
Abstract
The keratinocyte (KC) is the main functional and structural component of the epidermis, the most external layer of the skin that is highly specialized in defense against external agents, prevention of leakage of body fluids and retention of internal water within the cells. Altered epidermal barrier and aberrant KC differentiation are involved in the pathophysiology of several skin diseases, such as atopic dermatitis (AD). AD is a chronic inflammatory disease characterized by cutaneous and systemic immune dysregulation and skin microbiota dysbiosis. Nevertheless, the pathological mechanisms of this complex disease remain largely unknown. In this review, we summarize current knowledge about the participation of the KC in different aspects of the AD. We provide an overview of the genetic predisposing and environmental factors, inflammatory molecules and signaling pathways of the KC that participate in the physiopathology of the AD. We also analyze the link among the KC, the microbiota and the inflammatory response underlying acute and chronic skin AD lesions.
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Affiliation(s)
- Pamela Gallegos-Alcalá
- Department of Microbiology, Center of Basic Science, Autonomous University of Aguascalientes, Aguascalientes 20100, Mexico; (P.G.-A.); (M.J.); (D.C.-G.)
| | - Mariela Jiménez
- Department of Microbiology, Center of Basic Science, Autonomous University of Aguascalientes, Aguascalientes 20100, Mexico; (P.G.-A.); (M.J.); (D.C.-G.)
| | - Daniel Cervantes-García
- Department of Microbiology, Center of Basic Science, Autonomous University of Aguascalientes, Aguascalientes 20100, Mexico; (P.G.-A.); (M.J.); (D.C.-G.)
- National Council of Science and Technology, Ciudad de México 03940, Mexico
| | - Eva Salinas
- Department of Microbiology, Center of Basic Science, Autonomous University of Aguascalientes, Aguascalientes 20100, Mexico; (P.G.-A.); (M.J.); (D.C.-G.)
- Correspondence: ; Tel.: +52-449-9108424
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27
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Linares-Gonzalez L, Rodenas-Herranz T, Campos F, Ruiz-Villaverde R, Carriel V. Basic Quality Controls Used in Skin Tissue Engineering. Life (Basel) 2021; 11:1033. [PMID: 34685402 PMCID: PMC8541591 DOI: 10.3390/life11101033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/25/2021] [Accepted: 09/25/2021] [Indexed: 12/15/2022] Open
Abstract
Reconstruction of skin defects is often a challenging effort due to the currently limited reconstructive options. In this sense, tissue engineering has emerged as a possible alternative to replace or repair diseased or damaged tissues from the patient's own cells. A substantial number of tissue-engineered skin substitutes (TESSs) have been conceived and evaluated in vitro and in vivo showing promising results in the preclinical stage. However, only a few constructs have been used in the clinic. The lack of standardization in evaluation methods employed may in part be responsible for this discrepancy. This review covers the most well-known and up-to-date methods for evaluating the optimization of new TESSs and orientative guidelines for the evaluation of TESSs are proposed.
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Affiliation(s)
- Laura Linares-Gonzalez
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Teresa Rodenas-Herranz
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Fernando Campos
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Ricardo Ruiz-Villaverde
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Víctor Carriel
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
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28
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Tonti OR, Larson H, Lipp SN, Luetkemeyer CM, Makam M, Vargas D, Wilcox SM, Calve S. Tissue-specific parameters for the design of ECM-mimetic biomaterials. Acta Biomater 2021; 132:83-102. [PMID: 33878474 PMCID: PMC8434955 DOI: 10.1016/j.actbio.2021.04.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/18/2021] [Accepted: 04/08/2021] [Indexed: 02/06/2023]
Abstract
The extracellular matrix (ECM) is a complex network of biomolecules that mechanically and biochemically directs cell behavior and is crucial for maintaining tissue function and health. The heterogeneous organization and composition of the ECM varies within and between tissue types, directing mechanics, aiding in cell-cell communication, and facilitating tissue assembly and reassembly during development, injury and disease. As technologies like 3D printing rapidly advance, researchers are better able to recapitulate in vivo tissue properties in vitro; however, tissue-specific variations in ECM composition and organization are not given enough consideration. This is in part due to a lack of information regarding how the ECM of many tissues varies in both homeostatic and diseased states. To address this gap, we describe the components and organization of the ECM, and provide examples for different tissues at various states of disease. While many aspects of ECM biology remain unknown, our goal is to highlight the complexity of various tissues and inspire engineers to incorporate unique components of the native ECM into in vitro platform design and fabrication. Ultimately, we anticipate that the use of biomaterials that incorporate key tissue-specific ECM will lead to in vitro models that better emulate human pathologies. STATEMENT OF SIGNIFICANCE: Biomaterial development primarily emphasizes the engineering of new materials and therapies at the expense of identifying key parameters of the tissue that is being emulated. This can be partially attributed to the difficulty in defining the 3D composition, organization, and mechanics of the ECM within different tissues and how these material properties vary as a function of homeostasis and disease. In this review, we highlight a range of tissues throughout the body and describe how ECM content, cell diversity, and mechanical properties change in diseased tissues and influence cellular behavior. Accurately mimicking the tissue of interest in vitro by using ECM specific to the appropriate state of homeostasis or pathology in vivo will yield results more translatable to humans.
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Affiliation(s)
- Olivia R Tonti
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Hannah Larson
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Sarah N Lipp
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Callan M Luetkemeyer
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Megan Makam
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Diego Vargas
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Sean M Wilcox
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Sarah Calve
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States.
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29
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Lefaucheur JP, Abbas SA, Lefaucheur-Ménard I, Rouie D, Tebbal D, Bismuth J, Nordine T. Small nerve fiber selectivity of laser and intraepidermal electrical stimulation: A comparative study between glabrous and hairy skin. Neurophysiol Clin 2021; 51:357-374. [PMID: 34304975 DOI: 10.1016/j.neucli.2021.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 06/20/2021] [Accepted: 06/20/2021] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES In clinical neurophysiology practice, various methods of stimulation can be used to activate small-diameter nociceptive cutaneous afferents located in the epidermis. These methods include different types of laser and intraepidermal electrical stimulation techniques. The diffusion of the stimulation in the skin, inside or under the epidermis, depends on laser wavelength and electrode design, in particular. The aim of this study was to compare several of these techniques in their ability to selectively stimulate small nerve fibers. METHODS In 8 healthy subjects, laser stimulation (using a CO2 or Nd:YAP laser) and intraepidermal electrical stimulation (using a micropatterned, concentric planar, or concentric needle electrode), were applied at increasing energy or intensity on the dorsal or volar aspect of the right hand or foot. The subjects were asked to define the perceived sensation (warm, pinprick, or electric shock sensation, corresponding to the activation of C fibers, Aδ fibers, or Aβ fibers, respectively) after each stimulation. Depending on the difference in the sensations perceived between dorsal (hairy skin with thin stratum corneum) and volar (glabrous skin with thick stratum corneum) stimulations, the diffusion of the stimulation inside or under the epidermis and the nature of the activated afferents were determined. RESULTS Regarding laser stimulation, the perceived sensations turned from warm to pinprick with increasing energies of stimulation, in particular with the Nd:YAP laser, of which pulse could penetrate deep in the skin according to its short wavelength. In contrast, CO2 laser stimulation produced only warm sensations and no pricking sensation when applied to the glabrous skin, perhaps due to a thicker stratum corneum and the shallow penetration of the CO2 laser pulse. Regarding intraepidermal electrical stimulation using concentric electrodes, the perceived sensations turned from pinprick to a combination of pinprick and electrical shocks with increasing intensities. Using the concentric planar electrode, the sensations perceived at high stimulation intensity even consisted of electric shocks without concomitant pinprick. In contrast, using the micropatterned electrode, only pinprick sensations were produced by the stimulation of the hairy skin, while the stimulation of the glabrous skin produced no sensation at all within the limits of stimulation intensities used in this study. CONCLUSIONS Using the CO2 laser or the micropatterned electrode, pinprick sensations were selectively produced by the stimulation of hairy skin, while only warm sensation or no sensation at all were produced by the stimulation of glabrous skin. These two techniques appear to be more selective with a limited diffusion of the stimulation into the skin, restricting the activation of sensory afferents to the most superficial and smallest intraepidermal nerve fibers.
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Affiliation(s)
- Jean-Pascal Lefaucheur
- Univ Paris Est Creteil, EA4391, ENT, F-94010 Creteil, France; AP-HP, Henri Mondor University Hospital, Clinical Neurophysiology Unit, F-94010 Creteil, France.
| | - Samar A Abbas
- AP-HP, Henri Mondor University Hospital, Clinical Neurophysiology Unit, F-94010 Creteil, France
| | | | - Denis Rouie
- AP-HP, Henri Mondor University Hospital, Clinical Neurophysiology Unit, F-94010 Creteil, France
| | - Denise Tebbal
- AP-HP, Henri Mondor University Hospital, Clinical Neurophysiology Unit, F-94010 Creteil, France
| | - Julie Bismuth
- AP-HP, Henri Mondor University Hospital, Clinical Neurophysiology Unit, F-94010 Creteil, France
| | - Tarik Nordine
- Univ Paris Est Creteil, EA4391, ENT, F-94010 Creteil, France; AP-HP, Henri Mondor University Hospital, Clinical Neurophysiology Unit, F-94010 Creteil, France
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30
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Generation and Evaluation of Novel Biomaterials Based on Decellularized Sturgeon Cartilage for Use in Tissue Engineering. Biomedicines 2021; 9:biomedicines9070775. [PMID: 34356839 PMCID: PMC8301329 DOI: 10.3390/biomedicines9070775] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 11/17/2022] Open
Abstract
Because cartilage has limited regenerative capability, a fully efficient advanced therapy medicinal product is needed to treat severe cartilage damage. We evaluated a novel biomaterial obtained by decellularizing sturgeon chondral endoskeleton tissue for use in cartilage tissue engineering. In silico analysis suggested high homology between human and sturgeon collagen proteins, and ultra-performance liquid chromatography confirmed that both types of cartilage consisted mainly of the same amino acids. Decellularized sturgeon cartilage was recellularized with human chondrocytes and four types of human mesenchymal stem cells (MSC) and their suitability for generating a cartilage substitute was assessed ex vivo and in vivo. The results supported the biocompatibility of the novel scaffold, as well as its ability to sustain cell adhesion, proliferation and differentiation. In vivo assays showed that the MSC cells in grafted cartilage disks were biosynthetically active and able to remodel the extracellular matrix of cartilage substitutes, with the production of type II collagen and other relevant components, especially when adipose tissue MSC were used. In addition, these cartilage substitutes triggered a pro-regenerative reaction mediated by CD206-positive M2 macrophages. These preliminary results warrant further research to characterize in greater detail the potential clinical translation of these novel cartilage substitutes.
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Ramos-Rodriguez DH, MacNeil S, Claeyssens F, Ortega Asencio I. Fabrication of Topographically Controlled Electrospun Scaffolds to Mimic the Stem Cell Microenvironment in the Dermal-Epidermal Junction. ACS Biomater Sci Eng 2021; 7:2803-2813. [PMID: 33905240 DOI: 10.1021/acsbiomaterials.0c01775] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The use of microfabrication techniques for the development of innovative constructs for tissue regeneration is a growing area of research. This area comprises both manufacturing and biological approaches for the development of smart materials aiming to control and direct cell behavior to enhance tissue healing. Many groups have focused their efforts on introducing complexity within these innovative constructs via the inclusion of nano- and microtopographical cues mimicking physical and biological aspects of the native stem cell niche. Specifically, in the area of skin tissue engineering, seminal work has reported replicating the microenvironments located in the dermal-epithelial junction, which are known as rete ridges. The rete ridges are key for both stem cell control and the physiological performance of the skin. In this work, we have introduced complexity within electrospun membranes to mimic the morphology of the rete ridges in the skin. We designed and tested three different patterns, characterized them, and explored their performance in vitro, using 3D skin models. One of the studied patterns (pattern B) was shown to aid in the development of an in vitro rite-ridgelike skin model that resulted in the expression of relevant epithelial markers such as collagen IV and integrin β1. In summary, we have developed a new skin model including synthetic rete-ridgelike structures that replicate both morphology and function of the native dermal-epidermal junction and that offer new insights for the development of smart skin tissue engineering constructs.
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Affiliation(s)
- David H Ramos-Rodriguez
- Bioengineering and Health Technologies Group, The School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, U.K
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, U.K
| | - Sheila MacNeil
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, U.K
| | - Frederik Claeyssens
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, U.K
| | - Ilida Ortega Asencio
- Bioengineering and Health Technologies Group, The School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, U.K
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Garzón I, Jaimes-Parra BD, Pascual-Geler M, Cózar JM, Sánchez-Quevedo MDC, Mosquera-Pacheco MA, Sánchez-Montesinos I, Fernández-Valadés R, Campos F, Alaminos M. Biofabrication of a Tubular Model of Human Urothelial Mucosa Using Human Wharton Jelly Mesenchymal Stromal Cells. Polymers (Basel) 2021; 13:1568. [PMID: 34068343 PMCID: PMC8153323 DOI: 10.3390/polym13101568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/04/2021] [Accepted: 05/10/2021] [Indexed: 12/22/2022] Open
Abstract
Several models of bioartificial human urothelial mucosa (UM) have been described recently. In this study, we generated novel tubularized UM substitutes using alternative sources of cells. Nanostructured fibrin-agarose biomaterials containing fibroblasts isolated from the human ureter were used as stroma substitutes. Then, human Wharton jelly mesenchymal stromal cells (HWJSC) were used to generate an epithelial-like layer on top. Three differentiation media were used for 7 and 14 days. Results showed that the biofabrication methods used here succeeded in generating a tubular structure consisting of a stromal substitute with a stratified epithelial-like layer on top, especially using a medium containing epithelial growth and differentiation factors (EM), although differentiation was not complete. At the functional level, UM substitutes were able to synthesize collagen fibers, proteoglycans and glycosaminoglycans, although the levels of control UM were not reached ex vivo. Epithelial differentiation was partially achieved, especially with EM after 14 days of development, with expression of keratins 7, 8, and 13 and pancytokeratin, desmoplakin, tight-junction protein-1, and uroplakin 2, although at lower levels than controls. These results confirm the partial urothelial differentiative potential of HWJSC and suggest that the biofabrication methods explored here were able to generate a potential substitute of the human UM for future clinical use.
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Affiliation(s)
- Ingrid Garzón
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (I.G.); (B.D.J.-P.); (M.d.C.S.-Q.); (M.A.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain; (J.M.C.); (I.S.-M.); (R.F.-V.)
| | - Boris Damián Jaimes-Parra
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (I.G.); (B.D.J.-P.); (M.d.C.S.-Q.); (M.A.)
- Department of Histology, Faculty of Health Sciences, University Autónoma de Bucaramanga, 680003 Santander, Colombia
| | | | - José Manuel Cózar
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain; (J.M.C.); (I.S.-M.); (R.F.-V.)
- Division of Urology, University Hospital Virgen de las Nieves, 18014 Granada, Spain;
| | - María del Carmen Sánchez-Quevedo
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (I.G.); (B.D.J.-P.); (M.d.C.S.-Q.); (M.A.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain; (J.M.C.); (I.S.-M.); (R.F.-V.)
| | | | - Indalecio Sánchez-Montesinos
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain; (J.M.C.); (I.S.-M.); (R.F.-V.)
- Department of Human Anatomy and Embryology, University of Granada, 18016 Granada, Spain
| | - Ricardo Fernández-Valadés
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain; (J.M.C.); (I.S.-M.); (R.F.-V.)
- Division of Pediatric Surgery, University Hospital Virgen de las Nieves, 18014 Granada, Spain
| | - Fernando Campos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (I.G.); (B.D.J.-P.); (M.d.C.S.-Q.); (M.A.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain; (J.M.C.); (I.S.-M.); (R.F.-V.)
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (I.G.); (B.D.J.-P.); (M.d.C.S.-Q.); (M.A.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain; (J.M.C.); (I.S.-M.); (R.F.-V.)
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Sánchez-Porras D, Durand-Herrera D, Paes AB, Chato-Astrain J, Verplancke R, Vanfleteren J, Sánchez-López JD, García-García ÓD, Campos F, Carriel V. Ex Vivo Generation and Characterization of Human Hyaline and Elastic Cartilaginous Microtissues for Tissue Engineering Applications. Biomedicines 2021; 9:biomedicines9030292. [PMID: 33809387 PMCID: PMC8001313 DOI: 10.3390/biomedicines9030292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 12/25/2022] Open
Abstract
Considering the high prevalence of cartilage-associated pathologies, low self-repair capacity and limitations of current repair techniques, tissue engineering (TE) strategies have emerged as a promising alternative in this field. Three-dimensional culture techniques have gained attention in recent years, showing their ability to provide the most biomimetic environment for the cells under culture conditions, enabling the cells to fabricate natural, 3D functional microtissues (MTs). In this sense, the aim of this study was to generate, characterize and compare scaffold-free human hyaline and elastic cartilage-derived MTs (HC-MTs and EC-MTs, respectively) under expansion (EM) and chondrogenic media (CM). MTs were generated by using agarose microchips and evaluated ex vivo for 28 days. The MTs generated were subjected to morphometric assessment and cell viability, metabolic activity and histological analyses. Results suggest that the use of CM improves the biomimicry of the MTs obtained in terms of morphology, viability and extracellular matrix (ECM) synthesis with respect to the use of EM. Moreover, the overall results indicate a faster and more sensitive response of the EC-derived cells to the use of CM as compared to HC chondrocytes. Finally, future preclinical in vivo studies are still needed to determine the potential clinical usefulness of these novel advanced therapy products.
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Affiliation(s)
- David Sánchez-Porras
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
- Doctoral Program in Biomedicine, Doctoral School, University of Granada, 18016 Granada, Spain
| | - Daniel Durand-Herrera
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
| | - Ana B. Paes
- Master Program in Tissue Engineering and Advanced Therapies, International School for Postgraduate Studies, University of Granada, 18016 Granada, Spain;
| | - Jesús Chato-Astrain
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
| | - Rik Verplancke
- Centre for Microsystems Technology (CMST), imec and Ghent University, 9052 Ghent, Belgium; (R.V.); (J.V.)
| | - Jan Vanfleteren
- Centre for Microsystems Technology (CMST), imec and Ghent University, 9052 Ghent, Belgium; (R.V.); (J.V.)
| | - José Darío Sánchez-López
- Division of Maxillofacial Surgery, University Hospital Complex of Granada, 18013 Granada, Spain;
| | - Óscar Darío García-García
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
- Correspondence: (F.C.); (V.C.); Tel.: +34-958-248-295 (V.C.)
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
- Correspondence: (F.C.); (V.C.); Tel.: +34-958-248-295 (V.C.)
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Chato-Astrain J, Chato-Astrain I, Sánchez-Porras D, García-García ÓD, Bermejo-Casares F, Vairo C, Villar-Vidal M, Gainza G, Villullas S, Oruezabal RI, Ponce-Polo Á, Garzón I, Carriel V, Campos F, Alaminos M. Generation of a novel human dermal substitute functionalized with antibiotic-loaded nanostructured lipid carriers (NLCs) with antimicrobial properties for tissue engineering. J Nanobiotechnology 2020; 18:174. [PMID: 33228673 PMCID: PMC7686763 DOI: 10.1186/s12951-020-00732-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/13/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Treatment of patients affected by severe burns is challenging, especially due to the high risk of Pseudomonas infection. In the present work, we have generated a novel model of bioartificial human dermis substitute by tissue engineering to treat infected wounds using fibrin-agarose biomaterials functionalized with nanostructured lipid carriers (NLCs) loaded with two anti-Pseudomonas antibiotics: sodium colistimethate (SCM) and amikacin (AMK). RESULTS Results show that the novel tissue-like substitutes have strong antibacterial effect on Pseudomonas cultures, directly proportional to the NLC concentration. Free DNA quantification, WST-1 and Caspase 7 immunohistochemical assays in the functionalized dermis substitute demonstrated that neither cell viability nor cell proliferation were affected by functionalization in most study groups. Furthermore, immunohistochemistry for PCNA and KI67 and histochemistry for collagen and proteoglycans revealed that cells proliferated and were metabolically active in the functionalized tissue with no differences with controls. When functionalized tissues were biomechanically characterized, we found that NLCs were able to improve some of the major biomechanical properties of these artificial tissues, although this strongly depended on the type and concentration of NLCs. CONCLUSIONS These results suggest that functionalization of fibrin-agarose human dermal substitutes with antibiotic-loaded NLCs is able to improve the antibacterial and biomechanical properties of these substitutes with no detectable side effects. This opens the door to future clinical use of functionalized tissues.
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Affiliation(s)
- Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Isabel Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
| | - David Sánchez-Porras
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Óscar-Darío García-García
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Fabiola Bermejo-Casares
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
| | - Claudia Vairo
- BioKeralty Research Institute AIE, Albert Einstein, 25-E3, 01510, Miñano, Spain
| | | | - Garazi Gainza
- BioKeralty Research Institute AIE, Albert Einstein, 25-E3, 01510, Miñano, Spain
| | - Silvia Villullas
- BioKeralty Research Institute AIE, Albert Einstein, 25-E3, 01510, Miñano, Spain
| | | | - Ángela Ponce-Polo
- Red Andaluza de Diseño Y Traslación de Terapias Avanzadas, Sevilla, Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Víctor Carriel
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Fernando Campos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain.
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain.
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Avenida de la Investigación 11, 18016, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
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Politiek K, Loman L, Pas HH, Diercks GFH, Lemmink HH, Jan SZ, van den Akker PC, Bolling MC, Schuttelaar MLA. Hyperkeratotic hand eczema: Eczema or not? Contact Dermatitis 2020; 83:196-205. [PMID: 32333380 PMCID: PMC7496397 DOI: 10.1111/cod.13572] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/25/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022]
Abstract
Background Hyperkeratotic hand eczema (HHE) is a typical clinical hand eczema subtype with a largely unknown pathophysiology. Objective To investigate histopathology, expression of keratins (K), epidermal barrier proteins, and adhesion molecules in HHE. Methods Palmar skin biopsies (lesional and perilesional) were obtained from seven HHE patients and two healthy controls. Moreover, 135 candidate genes associated with palmoplantar keratoderma were screened for mutations. Results Immunofluorescence staining showed a significant reduction of K9 and K14 in lesional skin. Upregulation was found for K5, K6, K16, and K17 in lesional skin compared with perilesional and healthy palmar skin. Further, upregulation of involucrin and alternating loricrin staining, both in an extracellular staining pattern, was found. Filaggrin expression was similar in lesional, perilesional, and control skin. No monogenetic mutations were found. Conclusion Currently, the phenotype of HHE is included in the hand eczema classification system; however, it can be argued whether this is justified. The evident expression of filaggrin and involucrin in lesional skin does not support a pathogenesis of atopic eczema. The upregulation of K6, K16, and K17 and reduction of K9 and K14 might contribute to the underlying pathogenesis. Unfortunately, comparison with hand eczema studies is not possible yet, because similar protein expression studies are lacking.
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Affiliation(s)
- Klaziena Politiek
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Laura Loman
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Hendri H Pas
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gilles F H Diercks
- Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Henny H Lemmink
- Department of Genetics, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Sabrina Z Jan
- Department of Genetics, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Peter C van den Akker
- Department of Genetics, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Maria C Bolling
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marie L A Schuttelaar
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Kervarrec T, Samimi M, Guyétant S, Sarma B, Chéret J, Blanchard E, Berthon P, Schrama D, Houben R, Touzé A. Histogenesis of Merkel Cell Carcinoma: A Comprehensive Review. Front Oncol 2019; 9:451. [PMID: 31245285 PMCID: PMC6579919 DOI: 10.3389/fonc.2019.00451] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 05/13/2019] [Indexed: 12/11/2022] Open
Abstract
Merkel cell carcinoma (MCC) is a primary neuroendocrine carcinoma of the skin. This neoplasia features aggressive behavior, resulting in a 5-year overall survival rate of 40%. In 2008, Feng et al. identified Merkel cell polyomavirus (MCPyV) integration into the host genome as the main event leading to MCC oncogenesis. However, despite identification of this crucial viral oncogenic trigger, the nature of the cell in which MCC oncogenesis occurs is actually unknown. In fact, several hypotheses have been proposed. Despite the large similarity in phenotype features between MCC tumor cells and physiological Merkel cells (MCs), a specialized subpopulation of the epidermis acting as mechanoreceptor of the skin, several points argue against the hypothesis that MCC derives directly from MCs. Alternatively, MCPyV integration could occur in another cell type and induce acquisition of an MC-like phenotype. Accordingly, an epithelial as well as a fibroblastic or B-cell origin of MCC has been proposed mainly based on phenotype similarities shared by MCC and these potential ancestries. The aim of this present review is to provide a comprehensive review of the current knowledge of the histogenesis of MCC.
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Affiliation(s)
- Thibault Kervarrec
- Department of Pathology, Centre Hospitalier Universitaire de Tours, Tours, France.,ISP "Biologie des infections à polyomavirus" team, UMR INRA 1282, University of Tours, Tours, France.,Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Mahtab Samimi
- ISP "Biologie des infections à polyomavirus" team, UMR INRA 1282, University of Tours, Tours, France.,Departement of Dermatology, Centre Hospitalier Universitaire de Tours, Tours, France
| | - Serge Guyétant
- Department of Pathology, Centre Hospitalier Universitaire de Tours, Tours, France.,ISP "Biologie des infections à polyomavirus" team, UMR INRA 1282, University of Tours, Tours, France
| | - Bhavishya Sarma
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Jérémy Chéret
- Monasterium Laboratory, Skin and Hair Research Solutions GmbH, Münster, Germany
| | - Emmanuelle Blanchard
- Department of Pathology, Centre Hospitalier Universitaire de Tours, Tours, France.,Plateforme IBiSA de Microscopie Electronique, INSERM 1259, Université de Tours, Tours, France
| | - Patricia Berthon
- ISP "Biologie des infections à polyomavirus" team, UMR INRA 1282, University of Tours, Tours, France
| | - David Schrama
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Roland Houben
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Antoine Touzé
- ISP "Biologie des infections à polyomavirus" team, UMR INRA 1282, University of Tours, Tours, France
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