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Salazar-Trujillo BA, Vélez-Palafox M, Guerrero-Montes JA, Márquez-Gutiérrez EA, Morel-Fuentes EJ, González-Torres M. Reverse circumcision foreskin advancement flap for reconstructing penile shaft skin defects in adults with burn injuries in the perineal region. J Tissue Viability 2024:S0965-206X(24)00083-4. [PMID: 38918146 DOI: 10.1016/j.jtv.2024.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/02/2024] [Accepted: 06/21/2024] [Indexed: 06/27/2024]
Abstract
AIM Genital burns are rare injuries. Reconstruction of penile skin defects should consider cosmetic and functional outcomes. Skin grafts can develop scar contractures and carry hair follicles, causing unwanted results. These downsides remain unsolved issues. This work aimed to describe a new foreskin advancement flap method for completely reconstructing penile shaft skin defects in severely burned patients. MATERIALS AND METHODS From 2021 to 2023, four patients with third-degree burns in the genital area were enrolled in this investigation. We describe a series of cases with deep burns to the penile shaft and surrounding area that needed debridement and reconstruction using a novel technique called "reverse circumcision," which consists of tangential excision of the penis and a foreskin advancement flap without longitudinal cuts with less morbidity, preservation of function, and a better aesthetic appearance. The patients had an average follow-up of nine months. RESULTS The reverse circumcision technique was established for patients with severe burns in the genital area. The four patients were satisfied with the postoperative results and the aesthetic results of the procedure without reporting any complications. No scarring or contractures were observed on the glans or penile shaft after surgery. CONCLUSIONS Compared with other flap methods, the use of a reverse circumcision foreskin advancement flap was more straightforward, feasible, and effective. In adults, the foreskin tissue completely covers the penile shaft skin defect. It is a viable reconstructive surgical technique that is easily reproducible and has excellent aesthetic and functional results. For this surgical technique, tissue transfers, bulky regional flaps, or skin grafts were not needed.
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Affiliation(s)
- Bruno Andrés Salazar-Trujillo
- Division of Plastic and Reconstructive Surgery, National Center for Research and Care of Burns, National Institute of Rehabilitation, Mexico City, Mexico
| | - Mario Vélez-Palafox
- Division Head of Plastic and Reconstructive Surgery, National Center for Research and Care of Burns, National Institute of Rehabilitation, Mexico City, Mexico; Universidad Nacional Autónoma de México, Mexico City, Mexico.
| | - Jorge Antonio Guerrero-Montes
- Division of Plastic and Reconstructive Surgery, National Center for Research and Care of Burns, National Institute of Rehabilitation, Mexico City, Mexico
| | - Erik Agustín Márquez-Gutiérrez
- Division of Plastic and Reconstructive Surgery, National Center for Research and Care of Burns, National Institute of Rehabilitation, Mexico City, Mexico
| | - Elsa Juliet Morel-Fuentes
- Plastic Aesthetic and Reconstructive Surgery Service. American British Codraw (ABC) Medical Center Hospital, Mexico City, Mexico
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Abstract
Objective To evaluate the efficacy of different surgical procedures on post burn contracture of hand. Methods A quasi-experimental study design was conducted at the Department of Plastics and Reconstructive Surgery, Dow University of Health Science, DR. Ruth KM Pfau, Civil Hospital, Karachi, Pakistan from 1st June 2019 to 30th November 2019. Ninety-three participants of burned hand contracture of either gender, aged between 6- 60 years were included in the study. Resurfacing surgery with skin graft and loco-regional flaps were done according to type of contracture with individualization for each patient. All patients were kept under follow up for ninety days to assess efficacy of contracture release for each surgical procedure was noted. SPSS version 23 was used to analyse data. Results Full thickness skin graft (FTSG) was performed in 60.2% cases, 17.2% with split thickness skin graft (STSG) and 12.9% with cross finger flaps. About 25% of recurrence was observed in cross finger flaps, whereas no recurrence was seen in Z-plasties and posterior interosseous flap. The significant association was between recurrence and surgical procedures (p<0.05). Conclusion Z-plasty followed by FTSG was effective in the management of post burn contractures of hand.
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Affiliation(s)
- Suneel Kumar
- Suneel Kumar, FCPS-2, Post Graduate Trainee of Plastic Surgery. Department of Plastics and Reconstructive Surgery, Dow University of Health Sciences, DR. Ruth KM Pfau, Civil Hospital, Karachi, Pakistan
| | - Faisal Akhlaq Ali Khan
- Faisal Akhlaq Ali Khan, Chairperson and Assistant Professor, Head of Department of Plastic Surgery. Department of Plastics and Reconstructive Surgery, Dow University of Health Sciences, DR. Ruth KM Pfau, Civil Hospital, Karachi, Pakistan
| | - Hyder Ali
- Hyder Ali, Assistant Professor of Plastic Surgery. Department of Plastics and Reconstructive Surgery, Dow University of Health Sciences, DR. Ruth KM Pfau, Civil Hospital, Karachi, Pakistan
| | - Saba Kiran
- Saba Kiran, FCPS-2, Post Graduate Trainee of Plastic Surgery. Department of Plastics and Reconstructive Surgery, Dow University of Health Sciences, DR. Ruth KM Pfau, Civil Hospital, Karachi, Pakistan
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Abstract
BACKGROUND The prepuce is an excellent donor site for skin grafts with minimal donor site morbidity. Full-thickness grafts are often required for correction of congenital syndactyly and in burn contractures. METHODS Preputial skin was used for grafting in 18 children: 5 with burn contractures and 13 with congenital syndactyly. RESULTS Excellent graft take was achieved with appropriate postoperative care. Postoperatively, there were occasional milia (42%) and hyperpigmentation. These grafts were noted to have superior mobility and elasticity. There was no donor site morbidity. CONCLUSIONS Preputial skin is accessible, easy to harvest, and hairless and has minimal donor site morbidity. It is especially well suited for the hands and fingers when elasticity of the graft is beneficial.
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Use of preputial skin as cutaneous graft in post excision of a verrucous hemangioma of the thumb. JOURNAL OF SURGERY AND MEDICINE 2018. [DOI: 10.28982/josam.402591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Oliveira T, Costa I, Marinho V, Carvalho V, Uchôa K, Ayres C, Teixeira S, Vasconcelos DFP. Human foreskin fibroblasts: from waste bag to important biomedical applications. JOURNAL OF CLINICAL UROLOGY 2018. [DOI: 10.1177/2051415818761526] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Circumcision is one of the most performed surgical procedures worldwide, and it is estimated that one in three men worldwide is circumcised, which makes the preputial skin removed after surgery an abundant material for possible applications. In particular, it is possible efficiently to isolate the cells of the foreskin, with fibroblasts being the most abundant cells of the dermis and the most used in biomedical research. This work aimed to review the knowledge and obtain a broad view of the main applications of human foreskin fibroblast cell culture. A literature search was conducted, including clinical trials, preclinical basic research studies, reviews and experimental studies. Several medical and laboratory applications of human foreskin fibroblast cell culture have been described, especially when it comes to the use of human foreskin fibroblasts as feeder cells for the cultivation of human embryonic stem cells, in addition to co-culture with other cell types. The culture of foreskin fibroblasts has also been used to: obtain induced pluripotent stem cells; the diagnosis of Clostridium difficile; to test the toxicity and effect of substances on normal cells, especially the toxicity of possible antineoplastic drugs; in viral culture, mainly of the human cytomegalovirus, study of the pathogenesis of other microorganisms; varied studies of cellular physiology and cellular interactions. Fibroblasts are important for cell models for varied application cultures, demonstrating how the preputial material can be reused, making possible new applications. Level of evidence: Not applicable for this multicentre audit.
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Affiliation(s)
- Thomaz Oliveira
- Genetics and Molecular Biology Laboratory, Federal University of Piauí (UFPI), Brazil
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI), Brazil
- Biomedical Sciences, Federal University of Piauí (UFPI), Brazil
| | - Ilana Costa
- Biomedical Sciences, Federal University of Piauí (UFPI), Brazil
| | - Victor Marinho
- Genetics and Molecular Biology Laboratory, Federal University of Piauí (UFPI), Brazil
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI), Brazil
- Biomedical Sciences, Federal University of Piauí (UFPI), Brazil
| | - Valécia Carvalho
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI), Brazil
- Biomedical Sciences, Federal University of Piauí (UFPI), Brazil
| | - Karla Uchôa
- Genetics and Molecular Biology Laboratory, Federal University of Piauí (UFPI), Brazil
- Biomedical Sciences, Federal University of Piauí (UFPI), Brazil
| | - Carla Ayres
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI), Brazil
| | - Silmar Teixeira
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI), Brazil
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Najar M, Lagneaux L. Foreskin as a source of immunotherapeutic mesenchymal stromal cells. Immunotherapy 2017; 9:207-217. [PMID: 28128711 DOI: 10.2217/imt-2016-0093] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) have well-characterized properties and thus represent an attractive cell population for use in several therapeutic applications. Due to the limitations and inconveniences associated with classical sources of MSCs, the identification and characterization of alternative sources are required for safe and efficient cell therapy. The skin tissue is currently referred to as a reservoir of cells with therapeutically relevant functions. Historically considered biological waste, foreskin (FSK) is increasingly used to provide immunotherapeutic MSCs for medicinal products. This review discusses for the first time the nature and profile of MSCs within the foreskin tissue and, in particular, their immunobiology. A better immunological characterization and understanding of foreskin-derived cells will be critical for improving MSC-based cellular strategies for immunotherapeutic applications.
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Affiliation(s)
- Mehdi Najar
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Bâtiment de Transfusion (Level +1), Route de Lennik n° 808, 1070 Brussels, Belgium
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Bâtiment de Transfusion (Level +1), Route de Lennik n° 808, 1070 Brussels, Belgium
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Fayyad-Kazan H, Fayyad-Kazan M, Badran B, Bron D, Lagneaux L, Najar M. Study of the microRNA expression profile of foreskin derived mesenchymal stromal cells following inflammation priming. J Transl Med 2017; 15:10. [PMID: 28086811 PMCID: PMC5237315 DOI: 10.1186/s12967-016-1106-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 12/06/2016] [Indexed: 11/25/2022] Open
Abstract
Background Due to their self-renewal capacity, multi-lineage potential, and immunomodulatory properties, mesenchymal stromal cells (MSCs) are an attractive tool for different therapeutic strategies. Foreskin (FSK), considered as a biological waste material, has already been shown to be a valuable source of MSCs. Besides their typical fibroblast like morphology and International Society for cellular Therapy compliant phenotype, foreskin-MSCs (FSK–MSCs) are clonogenic, and highly proliferative cells with multi-lineage and strong immunomodulatory capacities. Of importance, FSK–MSCs properly adjust their fate following exposure to inflammatory signals. Being potent regulators of gene expression, miRNAs are involved in modulating nearly all cellular processes and in orchestrating the roles of different immune cells. In this study, we characterized the miRNome of FSK–MSCs by determining the expression profile of 380 different miRNAs in inflammation primed vs. control non-primed cells. Methods TaqMan low density array (TLDA) was performed to identify dysregulated miRNAs after exposing FSK–MSCs to inflammatory signals. Quantitative real-time RT-PCR was carried out to validate the observations. DIANA-miRPath analysis web server was used to identify potential pathways that could be targeted by the dysregulated miRNAs. Results Sixteen miRNAs were differentially expressed in inflammation-primed vs. non-primed FSK–MSCs. The expression level of miR-27a, -145, -149, -194, -199a, -221, -328, -345, -423-5p, -485-3p, -485-5p, -615-5p and -758 was downregulated whilst that of miR-155, -363 and -886-3p was upregulated. Target pathway prediction of those differentially expressed miRNAs identified different inflammation linked pathways. Conclusions After determining their miRNome, we identified a striking effect of inflammatory signals on the miRNAs’ expression levels in FSK–MSCs. Our results highlight a potential role of miRNAs in modulating the transcription programs of FSK–MSCs in response to inflammatory signals. Further, we propose that specific miRNAs could serve as interesting targets to manipulate some functions of FSK–MSCs, thus ameliorating their therapeutic potential.
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Affiliation(s)
- Hussein Fayyad-Kazan
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Lebanese University, Hadath, Lebanon.
| | - Mohammad Fayyad-Kazan
- Institut de Biologie et de Médecine Moléculaires, Université Libre de Bruxelles, 6041, Gosselies, Belgium
| | - Bassam Badran
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Lebanese University, Hadath, Lebanon
| | - Dominique Bron
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Brussels, Belgium
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Brussels, Belgium
| | - Mehdi Najar
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Brussels, Belgium
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Mesenchymal stromal cells from the foreskin: Tissue isolation, cell characterization and immunobiological properties. Cytotherapy 2016; 18:320-35. [PMID: 26857227 DOI: 10.1016/j.jcyt.2015.11.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 11/12/2015] [Accepted: 11/16/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND AIMS Because of their self-renewal capacity, multilineage potential and immunomodulatory properties, MSCs are an attractive tool for cell-based immunotherapy strategies. Foreskin, considered as a biological waste material, has been shown to be a reservoir of therapeutic cells. METHODS MSCs were isolated from different foreskin samples, maintained under in vitro culture and defined according to the International Society for Cellular Therapy (ISCT) criteria. We subsequently determined their main cell characteristics as well as their immunobiological properties. The following parameters were determined: (i) morphology and phenotype, (ii) proliferative and clonogenic potentials, (iii) tri-lineage differentiation ability, (iv) immunological profile, (v) immunomodulatory properties and (vi) protein and messenger RNA expression/secretion profile of immunoregulatory cytokines/factors as well as the pattern of toll-like receptors (TLRs). By using a pro-inflammatory cytokine cocktail, we also evaluated the influence of an inflammatory environment on their biology. RESULTS With a typical fibroblast-like morphology and an ISCT-compliant phenotype, foreskin-MSCs (FSK-MSCs) were highly proliferative and had a great clonogenic potential. They displayed multilineage capacities and interesting immunomodulatory properties. Of importance, FSK-MSCs were not immunogenetic and were further able to inhibit T-cell proliferation. We showed that several immunoregulatory cytokines and factors might be potentially involved in FSK-MSC immunomodulation with particular attention to hepatocyte growth factor and interleukin-11. Moreover, FSK-MSCs expressed several TLRs and were sensitive to the inflammatory environment by properly adjusting their profile and fate. CONCLUSIONS Foreskin represents a new alternative source for MSCs that is compliant with ISCT criteria. Their unique immunobiological properties allow consideration of FSK-MSCs as a valuable tolerogenic product for cell-based immunotherapy.
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