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Perez VL, Mousa HM, Miyagishima KJ, Reed AA, Su AJA, Greenwell TN, Washington KM. Retinal transplant immunology and advancements. Stem Cell Reports 2024; 19:817-829. [PMID: 38729155 DOI: 10.1016/j.stemcr.2024.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 05/12/2024] Open
Abstract
Several gaps and barriers remain for transplanting stem cells into the eye to treat ocular disease, especially diseases of the retina. While the eye has historically been considered immune privileged, recent thinking has identified the immune system as both a barrier and an opportunity for eye stem cell transplantation. Recent approaches leveraging scaffolds or cloaking have been considered in other tissues beyond immune suppression. This perspective paper outlines approaches for transplantation and proposes opportunities to overcome barriers of the immune system in stem cell transplantation in the eye.
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Affiliation(s)
- Victor L Perez
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA; Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Hazem M Mousa
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | | | - Amberlynn A Reed
- National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - An-Jey A Su
- Department of Surgery, University of Colorado School of Medicine, CU Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Thomas N Greenwell
- National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Kia M Washington
- Department of Surgery, University of Colorado School of Medicine, CU Anschutz Medical Campus, Aurora, CO 80045, USA.
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Longo B, Pomahac B, Giacalone M, Cardillo M, Cervelli V. 18 years of face transplantation: Adverse outcomes and challenges. J Plast Reconstr Aesthet Surg 2023; 87:187-199. [PMID: 37879143 DOI: 10.1016/j.bjps.2023.09.043] [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: 12/10/2022] [Revised: 08/19/2023] [Accepted: 09/12/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND Since the first procedure performed in 2005, face transplantation has been debated as viable approach for the treatment of severe craniofacial defects. Despite the benefits provided, the experience in face allotransplantation has brought to light a significant risk of complications, including allograft removal or loss, and mortality. The present study is intended to provide an updated review on complications and major challenges witnessed over 18 years of experience in the field. METHODS A systematic review of PubMed, MEDLINE, Cochrane, Google, and Google Scholar databases on face transplantation was conducted according to PRISMA guidelines up to April 2023. Articles providing details on cases of face allograft loss, removal, and patient death were included. Online articles and media reports were assessed to include information not disclosed in peer-reviewed literature. Face transplant centers were contacted to have updated follow-up information on single-face transplant cases. RESULTS The search yielded 1006 reports, of which 28 were included. On a total of 48 procedures performed in 46 patients, adverse outcomes were gleaned in 14 cases (29%), including seven allograft losses (14.6%), and the death of ten patients (21.7%). Chronic rejection was the leading cause of allograft loss, with a median time from transplant to irreversible rejection of 90 months (IQR 88.5-102). The main causes of death were infectious complications, followed by malignancies, non-compliance to immunosuppression, and suicide. The median time to death was 48.5 months (IQR 19-122). CONCLUSIONS To the best of our knowledge, this is the first study providing a comprehensive review of adverse outcomes in face transplantation. Considering the high rate of major complications, the heterogeneity of cases and single-center approaches, and the absence of published standards of care, the development of a consensus by face transplant teams holds the key to the field's advancement.
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Affiliation(s)
- Benedetto Longo
- Chair of Plastic and Reconstructive Surgery, Department of Surgical Sciences, Tor Vergata University of Rome, Rome, Italy.
| | - Bohdan Pomahac
- Division of Plastic and Reconstructive Surgery, Yale School of Medicine, New Haven, CT, USA
| | - Martina Giacalone
- Chair of Plastic and Reconstructive Surgery, Department of Surgical Sciences, Tor Vergata University of Rome, Rome, Italy
| | - Massimo Cardillo
- National Transplants Center, National Institute of Health, Italian Ministry of Health, Rome, Italy
| | - Valerio Cervelli
- Chair of Plastic and Reconstructive Surgery, Department of Surgical Sciences, Tor Vergata University of Rome, Rome, Italy
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Ozmen S, Findikcioglu K, Sibar S, Tuncer S, Ayhan S, Guz G, Unal Y, Aslan S. First Composite Woman-to-Woman Facial Transplantation in Turkey: Challenges and Lessons to Be Learned. Ann Plast Surg 2023; 90:87-95. [PMID: 36534107 DOI: 10.1097/sap.0000000000003323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
ABSTRACT After the first face transplantation from woman to woman we performed in our clinic, it was aimed to eliminate the lack of knowledge about the subject in the literature by transferring our experiences and long-term results to the problems we had with the patient. A 20-year-old patient underwent partial osteomyocutaneous facial transplant (22nd facial transplant), which included 2 functional units of the face. The patient had no major problems in the early period and had a good aesthetic appearance. In the postoperative period, the patient ended her social isolation and adopted the transplanted face.In the late period, secondary surgical interventions, management of the problems caused by immunosuppression, and the patient's living in a remote location to our clinic were the difficulties encountered. Six revision surgeries were performed after the transplantation. Due to immunosuppression, opportunistic infections and metabolic problems required intermittent hospitalization. The patient died at the end of 56 months because of complications secondary to immunosuppression.A successful transplant involves the management of long-term problems rather than a successful tissue transfer in the early period. In today's conditions, long-term success can be achieved with a good patient compliance, as well as each team member should take an active role in the team at the transplantation centers. More case series are needed to adapt the standard treatment and follow-up protocols for solid organ transplantations for composite tissue allotransplantations. This will be possible by sharing the results and experiences transparently in the centers where face transplantation is performed worldwide.
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Affiliation(s)
- Selahattin Ozmen
- From the Department of Plastic, Reconstructive and Aesthetic Surgery, Koç University Hospital, Istanbul
| | | | - Serhat Sibar
- Departments of Plastic, Reconstructive and Aesthetic Surgery
| | - Serhan Tuncer
- Departments of Plastic, Reconstructive and Aesthetic Surgery
| | - Suhan Ayhan
- Departments of Plastic, Reconstructive and Aesthetic Surgery
| | | | | | - Selcuk Aslan
- Psychiatry, Gazi University Hospital, Ankara, Turkey
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La Padula S, Pensato R, Pizza C, Coiante E, Roccaro G, Longo B, D’Andrea F, Wirz FS, Hersant B, Meningaud JP. Face Transplant: Indications, Outcomes, and Ethical Issues-Where Do We Stand? J Clin Med 2022; 11:jcm11195750. [PMID: 36233619 PMCID: PMC9571096 DOI: 10.3390/jcm11195750] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/13/2022] [Accepted: 09/26/2022] [Indexed: 11/21/2022] Open
Abstract
Background: The addition of face allotransplantation (FT) to the head and neck reconstructive surgery arsenal has started a true revolution. This study is aimed at providing an extensive analysis of the current practice of composite tissue allotransplantation. Moreover, a thorough description of pre-procedural, intra-operative, and post-procedural settings, indications, contraindications, outcomes, ethical considerations, and future perspectives is provided. Methods: The authors’ experience was supplemented with a literature review performed by using the PubMed, MEDLINE, and Embase databases on 21 February 2022. The search terms used were “face transplantation indications”, “face transplantation complications”, and “face transplantation ethical issues”. Results: The most recent achievements and long-term clinical sequelae of FT are classified and summarized. A large number of records (4435) were identified. Seventy-five articles were assessed for eligibility. Publications without new data and reports with a patient follow-up < 5 years were excluded. Nineteen articles met the criteria for inclusion. Conclusions: The most recent achievements in the field of FT may be combined with cutting-edge regenerative medicine procedures and innovative immunological processing. It is paramount to build strong international networks between the world FT experts in order to achieve higher-level outcomes and reduce the complication rate. Nevertheless, the utmost caution is required in patient selection, clinical assessment, strict follow-up, and rejection management.
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Affiliation(s)
- Simone La Padula
- Department of Plastic and Reconstructive Surgery, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy
- Department of Plastic, Reconstructive and Maxillo Facial Surgery, Henri Mondor Hospital, University Paris XII, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
- Correspondence:
| | - Rosita Pensato
- Department of Plastic and Reconstructive Surgery, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy
| | - Chiara Pizza
- Department of Plastic, Reconstructive and Maxillo Facial Surgery, Henri Mondor Hospital, University Paris XII, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
| | - Edoardo Coiante
- Department of Plastic, Reconstructive and Maxillo Facial Surgery, Henri Mondor Hospital, University Paris XII, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
| | - Giovanni Roccaro
- Department of Plastic, Reconstructive and Maxillo Facial Surgery, Henri Mondor Hospital, University Paris XII, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
| | - Benedetto Longo
- Department of Plastic and Reconstructive Surgery, Università di Roma Tor Vergata, Viale Oxford 81, 00133 Roma, Italy
| | - Francesco D’Andrea
- Department of Plastic and Reconstructive Surgery, Università degli Studi di Napoli Federico II, Via Pansini 5, 80131 Napoli, Italy
| | | | - Barbara Hersant
- Department of Plastic, Reconstructive and Maxillo Facial Surgery, Henri Mondor Hospital, University Paris XII, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
| | - Jean Paul Meningaud
- Department of Plastic, Reconstructive and Maxillo Facial Surgery, Henri Mondor Hospital, University Paris XII, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
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Clinical and preclinical tolerance protocols for vascularized composite allograft transplantation. Arch Plast Surg 2021; 48:703-713. [PMID: 34818720 PMCID: PMC8627932 DOI: 10.5999/aps.2021.00927] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/06/2021] [Indexed: 12/01/2022] Open
Abstract
The field of vascularized composite allografts (VCAs) has undergone significant advancement in recent decades, and VCAs are increasingly common and accepted in the clinical setting, bringing hope of functional recovery to patients with debilitating injuries. A major obstacle facing the widespread application of VCAs is the side effect profile associated with the current immunosuppressive regimen, which can cause a wide array of complications such as infection, malignancy, and even death. Significant concerns remain regarding whether the treatment outweighs the risk. The potential solution to this dilemma would be achieving VCA tolerance, which would allow recipients to receive allografts without significant immunosuppression and its sequelae. Promising tolerance protocols are being studied in kidney transplantation; four major trials have attempted to withdraw immunosuppressive treatment with various successes. The common theme in all four trials is the use of radiation treatment and donor cell transplantation. The knowledge gained from these trials can provide valuable insight into the development of a VCA tolerance protocol. Despite similarities, VCAs present additional barriers compared to kidney allografts regarding tolerance induction. VCA donors are likely to be deceased, which limits the time for significant pre-conditioning. VCA donors are also more likely to be human leukocyte antigen–mismatched, which means that tolerance must be induced across major immunological barriers. This review also explores adjunct therapies studied in large animal models that could be the missing element in establishing a safe and stable tolerance induction method.
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Abstract
LEARNING OBJECTIVES After studying this article, the participant should be able to: 1. Appreciate the evolution and increasing complexity of transplanted facial allografts over the past two decades. 2. Discuss indications and contraindications for facial transplantation, and donor and recipient selection criteria and considerations. 3. Discuss logistical, immunologic, and cost considerations in facial transplantation, in addition to emerging technologies used. 4. Understand surgical approaches and anatomical and technical nuances of the procedure. 5. Describe aesthetic, functional, and psychosocial outcomes of facial transplantation reported to date. SUMMARY This CME article highlights principles and evolving concepts in facial transplantation. The field has witnessed significant advances over the past two decades, with more than 40 face transplants reported to date. The procedure now occupies the highest rung on the reconstructive ladder for patients with extensive facial disfigurement who are not amenable to autologous reconstructive approaches, in pursuit of optimal functional and aesthetic outcomes. Indications, contraindications, and donor and recipient considerations for the procedure are discussed. The authors also review logistical, immunologic, and cost considerations of facial transplantation. Surgical approaches to allograft procurement and transplantation, in addition to technical and anatomical nuances of the procedure, are provided. Finally, the authors review aesthetic, functional, and psychosocial outcomes that have been reported to date.
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Honeyman C, Stark HL, Fries CA, Gorantla VS, Davis MR, Giele H. Vascularised composite allotransplantation in solid organ transplant recipients: A systematic review. J Plast Reconstr Aesthet Surg 2020; 74:316-326. [PMID: 33036926 DOI: 10.1016/j.bjps.2020.08.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 03/16/2020] [Accepted: 08/20/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION A solid organ transplant (SOT) recipient, already taking immunosuppression, may represent the ideal candidate for vascularised composite allograft transplantation (VCA). However, concerns have been raised about the potential risk of SOT loss or the need for increased immunosuppression to sustain the VCA. This systematic review examines all published cases of SOT recipients who have received a VCA to establish associated morbidity and immunosuppression requirements. METHODS A systematic review was performed in accordance with the PRISMA guidelines. The PubMed, MEDLINE and EMBASE databases were searched for original articles published between January 1997 and May 2019. Only articles relating to patients who had received both a VCA and SOT with a reported follow up of greater than six months were included. RESULTS Fifteen articles were identified, including data from 39 VCAs in 37 patients. There was no increase in the number of SOT rejection episodes, complications such as post-transplant lymphoproliferative disorder or graft versus host disease, de novo donor specific HLA antibodies or short-term risks to the recipient when compared with SOT in isolation. One child required a sustained increase in their baseline immunosuppression following bilateral hand transplantation. CONCLUSIONS In this small heterogeneous cohort, the addition of a VCA to a SOT does not appear to increase the short-term risks to the SOT or the patient with comparable results to SOT in isolation. However, data are often poorly reported and longer-term follow up and uniform reporting of outcomes would be beneficial to more accurately assess the safety profile of combining VCA with SOT.
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Affiliation(s)
- Calum Honeyman
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Helen L Stark
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Charles A Fries
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Vijay S Gorantla
- Wake Forest Institute of Regenerative Medicine, Wake Forest Baptist Medical Center, Winston Salem, NC, USA
| | - Michael R Davis
- The United States Army Institute of Surgical Research, San Antonio, TX, USA
| | - Henk Giele
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
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Ocular Considerations in Face Transplantation: Report of 2 Cases and Review of the Literature. Ophthalmic Plast Reconstr Surg 2020; 35:218-226. [PMID: 30550500 DOI: 10.1097/iop.0000000000001296] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE Periorbital injuries are common in face transplantation (FT) candidates. It is therefore essential that the ophthalmologist play a central role in the multidisciplinary treatment of these patients. In this study, the authors perform a comprehensive review of all procedures involving periorbital components, provide an update for the ophthalmology community regarding the current state of the field, and present 2 cases. METHODS A comprehensive review of the literature for all FT procedures including periorbital components was performed. The authors also present 2 patients who received FT including periorbital components for extensive facial disfigurement. One patient sustained high-energy avulsive ballistic injury and underwent a total face, double jaw, and tongue transplant in 2012. The second patient received a total face, eyelids, ears, and skeletal subunits transplant for extensive facial burns in 2015. RESULTS Literature review demonstrated that 22 (54%) of the 41 patients undergoing FT received allografts containing periorbital components. Only 14 cases (64%) reported on the presence of ocular and periocular complications. The most common complications consisted of lower eyelid ectropion and lagophthalmos, and nearly all required revisional procedures. Both patients presented with significant periorbital scarring and demonstrated good visual acuity and aesthetic outcomes at postoperative follow up between 6 and 28 months. CONCLUSIONS Face transplantation can address extensive facial and periorbital disfigurement with satisfactory functional and aesthetic outcomes. The majority of FT performed to date have included periorbital components, and postoperative ocular and periocular complications are common. It is critical for ophthalmologists to play a central role in the care of these patients.
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Rifkin WJ, David JA, Plana NM, Kantar RS, Diaz-Siso JR, Gelb BE, Ceradini DJ, Rodriguez ED. Achievements and Challenges in Facial Transplantation. Ann Surg 2019; 268:260-270. [PMID: 29489486 DOI: 10.1097/sla.0000000000002723] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
: The first facial transplantation in 2005 ushered in a new era in reconstructive surgery, offering new possibilities for the repair of severe disfigurements previously limited by conventional techniques. Advances in allograft design, computerized preoperative planning, surgical technique, and postoperative revisions have helped push the boundaries in this new frontier of vascularized composite allotransplantation. Over the past 12 years, 40 of these procedures have been performed across the world, offering the field the opportunity to reflect on current outcomes. Successes achieved in the brief history of facial transplantation have resulted in a new set of obstacles the field must now overcome. In this review, we aim to highlight the achievements, major challenges, and future directions of this rapidly evolving field.
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Affiliation(s)
- William J Rifkin
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health. New York, NY
| | - Joshua A David
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health. New York, NY
| | - Natalie M Plana
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health. New York, NY
| | - Rami S Kantar
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health. New York, NY
| | - J Rodrigo Diaz-Siso
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health. New York, NY
| | - Bruce E Gelb
- Division of Transplant Surgery, NYU Langone Health, New York, NY
| | - Daniel J Ceradini
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health. New York, NY
| | - Eduardo D Rodriguez
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health. New York, NY
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Abstract
Massive facial damages extremely affect the facial appearance and function. In existing publications, the surgical flap transfer was still prior to other methods in repairing the facial injury. Among them, the prefabricated induced expanded skin flap seems more effective based on the facial specific features and damage range. In this study, a literature research was carried out in the database of PubMed. A total of 85 patients were included and all of them underwent the method of prefabricated expanded flap to reconstruct the massive facial defects. The prefabricated induced expanded skin flaps harvested from the neck and chest area have prominent advantage in resetting massive facial deformities. All the flaps survived demonstrated an excellent texture and color match with the facial defects areas. However, the unsolved problems are still existed in these flaps and further research is necessary to obtain a satisfactory outcome for both patients and surgeons.
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12
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Honeyman C, Fries CA. Vascularised Composite Allotransplantation – Basic Science and Clinical Applications. ACTA ACUST UNITED AC 2019. [DOI: 10.29337/ijops.28] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Ex Vivo Major Histocompatibility Complex I Knockdown Prolongs Rejection-free Allograft Survival. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2018; 6:e1825. [PMID: 30276052 PMCID: PMC6157929 DOI: 10.1097/gox.0000000000001825] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 04/17/2018] [Indexed: 12/14/2022]
Abstract
Supplemental Digital Content is available in the text. Background: Widespread application of vascularized composite allotransplantation (VCA) is currently limited by the required lifelong systemic immunosuppression and its associated morbidity and mortality. This study evaluated the efficacy of ex vivo (after procurement but before transplantation) engineering of allografts using small interfering RNA to knockdown major histocompatibility complex I (MHC-I) and prolong rejection-free survival. Methods: Endothelial cells (ECs) were transfected with small interfering RNA targeted against MHC-I (siMHC-I) for all in vitro experiments. MHC-I surface expression and knockdown duration were evaluated using quantitative polymerase chain reaction (qPCR) and flow cytometry. After stimulating Lewis recipient cytotoxic lymphocytes (CTL) with allogeneic controls or siMHC-I–silenced ECs, lymphocyte proliferation, CTL-mediated and natural killer–mediated EC lysis were measured. Using an established VCA rat model, allografts were perfused ex vivo with siMHC-I before transplantation. Allografts were analyzed for MHC-I expression and clinical/histologic evidence of rejection. Results: Treatment with siMHC-I resulted in 80% knockdown of mRNA and 87% reduction in cell surface expression for up to 7 days in vitro (P < 0.05). Treatment of ECs with siMHC-I reduced lymphocyte proliferation and CTL-mediated cytotoxicity (77% and 50%, respectively, P < 0.01), without increasing natural killer–mediated cytotoxicity (P = 0.66). In a rat VCA model, ex vivo perfusion with siMHC-I reduced expression in all tissue compartments by at least 50% (P < 0.05). Knockdown prolonged rejection-free survival by 60% compared with nonsense-treated controls (P < 0.05). Conclusions: Ex vivo siMHC-I engineering can effectively modify allografts and significantly prolong rejection-free allograft survival. This novel approach may help reduce future systemic immunosuppression requirements in VCA recipients.
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Burlage LC, Tessier SN, Etra JW, Uygun K, Brandacher G. Advances in machine perfusion, organ preservation, and cryobiology: potential impact on vascularized composite allotransplantation. Curr Opin Organ Transplant 2018; 23:561-567. [PMID: 30080697 PMCID: PMC6449688 DOI: 10.1097/mot.0000000000000567] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW In this review, we discuss novel strategies that allow for extended preservation of vascularized composite allografts and their potential future clinical implications for the field of vascularized composite allotransplantation (VCA). RECENT FINDINGS The current gold standard in tissue preservation - static cold preservation on ice - is insufficient to preserve VCA grafts for more than a few hours. Advancements in the field of VCA regarding matching and allocation, desensitization, and potential tolerance induction are all within reasonable reach to achieve; these are, however, constrained by limited preservation time of VCA grafts. Although machine perfusion holds many advantages over static cold preservation, it currently does not elongate the preservation time. More extreme preservation techniques, such as cryopreservation approaches, are, however, specifically difficult to apply to composite tissues as the susceptibility to ischemia and cryoprotectant agents varies greatly by tissue type. SUMMARY In the current scope of extended preservation protocols, high subzero approaches of VCA grafts will be particularly critical enabling technologies for the implementation of tolerance protocols clinically. Ultimately, advances in both preservation techniques and tolerance induction have the potential to transform the field of VCA and eventually lead to broad applications in reconstructive transplantation.
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Affiliation(s)
- Laura C. Burlage
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Surgery, Section Hepato-Pancreato-Biliary Surgery and Liver Transplantation, University Medical Center Groningen, Groningen, The Netherlands
| | - Shannon N. Tessier
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Joanna W. Etra
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Korkut Uygun
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gerald Brandacher
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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16
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Özkan Ö, Özkan Ö, Ubur M, Hadimioğlu N, Cengiz M, Afşar İ. Face allotransplantation for various types of facial disfigurements: A series of five cases. Microsurgery 2017; 38:834-843. [DOI: 10.1002/micr.30272] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 10/16/2017] [Accepted: 11/02/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Ömer Özkan
- Department of Plastic and Reconstructive Surgery; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Özlenen Özkan
- Department of Plastic and Reconstructive Surgery; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Mehmetcan Ubur
- Department of Plastic and Reconstructive Surgery; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Necmiye Hadimioğlu
- Department of Anaesthesiology and Reanimation; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Melike Cengiz
- Department of Anaesthesiology and Reanimation; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - İsmail Afşar
- Dentist, Anaplastologist, Private practice; Antalya Turkey
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Angiosome-Based Allografts: Vascularized Composite Allotransplantation for Tailored Subunit Reconstruction with Volkmann Ischemic Contracture as a Case in Point. Plast Reconstr Surg 2017; 139:1291e-1304e. [PMID: 28538571 DOI: 10.1097/prs.0000000000003360] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND As we enter an age with new approaches to tissue reconstruction, the emphasis on the adage "like for like" has become even more relevant. This study illustrates the potential for several tailored vascularized composite allotransplantation reconstructive techniques and, in particular, for the management of Volkmann contracture. METHODS Twenty fresh cadaver dissections and 30 archival lead oxide radiographic studies were examined to (1) identify potential upper limb vascularized composite allotransplantation donor sites (i.e., elbow, forearm, and flexor tendon complex) and (2) demonstrate a "mock transplant" of the vascularized volar forearm allograft for a severe Volkmann ischemia defect. They were designed without skin to reduce antigenicity. RESULTS The elbow joint was supplied within the brachial angiosome and the flexor tendon complex of the flexor digitorum superficialis and flexor digitorum profundus by the superficial palmar arch of the ulnar angiosome. The forearm allograft of flexor muscles, median, ulnar, and anterior interosseous nerves, when harvested on the brachial vessels, was supplied within the radial, ulnar, and anterior interosseous angiosomes but could be based on the ulnar artery alone because of intramuscular connections with the other territories. A mock transplant was performed with a distal-to-proximal dissection of the allograft, facilitating the best and fastest technique. CONCLUSIONS This application of the angiosome concept highlights the anatomical feasibility of the volar forearm vascularized composite allotransplantation donor site focusing on a complex subunit problem in the upper limb-severe Volkmann ischemic contracture. It demonstrates the potential use and immunologic advantage of subdivided and modified nonskin variations of vascularized composite allotransplantation in reconstructive transplantation surgery. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, V.
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Özkan Ö, Özkan Ö, Doğan U, Yılmaz VT, Uysal H, Ündar L, Doğan EA, Salim O, Çinpolat A, Ramazanoglu A. Consideration of difficulties and exit strategies in a case of face allotransplantation resulting in failure. Microsurgery 2017; 37:661-668. [DOI: 10.1002/micr.30137] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 11/14/2016] [Accepted: 11/23/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Özlenen Özkan
- Department of Plastic and Reconstructive Surgery; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Ömer Özkan
- Department of Plastic and Reconstructive Surgery; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Umuttan Doğan
- Department of Cardiology; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Vural Taner Yılmaz
- Department of Nephrology; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Hilmi Uysal
- Department of Neurology; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Levent Ündar
- Department of Hematology; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Ebru Apaydın Doğan
- Department of Neurology; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Ozan Salim
- Department of Hematology; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Anı Çinpolat
- Department of Plastic and Reconstructive Surgery; Akdeniz University Faculty of Medicine; Antalya Turkey
| | - Atilla Ramazanoglu
- Department of Anaesthesiology and Reanimation; Akdeniz University Faculty of Medicine; Antalya Turkey
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Theodorakopoulou E, Meghji S, Pafitanis G, Mason KA. A review of the world's published face transplant cases: ethical perspectives. Scars Burn Heal 2017; 3:2059513117694402. [PMID: 29799566 PMCID: PMC5965321 DOI: 10.1177/2059513117694402] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The highly publicised case of the first ever partial facial transplant in 2005 sparked fierce ethical debates, moral arguments and strong opinions, both within the medical community as well as the general public and mass media. As more patients have undergone facial transplantation over the last decade, some of this initial scepticism has given way to a wider acceptance of this significant reconstructive development. However, despite an improved understanding of the perioperative technicalities and postoperative perils, the risks remain significant and the long-term outcomes are still largely unknown. This article examines the major ethical challenges that have accompanied facial allo-transplantation since its inception. We discuss these ethical dilemmas in the context of the patients, donor families, healthcare professionals and society as a whole, while evaluating some of the emerging evidence and outcomes associated with the physical and psycho-emotional risks linked to this procedure.
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Affiliation(s)
| | - Sheneen Meghji
- Norfolk and Norwich University Hospitals, NHS Foundation Trust, Norwich, UK
| | - Georgios Pafitanis
- The Blizard Institute, Barts and The London School of Medicine and Dentistry, London, UK
| | - Katrina A Mason
- The Blizard Institute, Barts and The London School of Medicine and Dentistry, London, UK
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