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Induction of Endotoxin Tolerance Delays Acute Rejection in a Hindlimb Transplantation Model in Rats. Plast Reconstr Surg 2022; 149:216e-228e. [PMID: 35077416 DOI: 10.1097/prs.0000000000008794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Acute rejection is seen in 85 percent of composite vascular allogeneic transplants despite long-term immunosuppression. Recently, it was reported that the induction of endotoxin tolerance prolonged heart allograft survival in mice. However, it produced side effects in all the animals secondary to the inflammatory reaction. Galactomannan has shown endotoxin tolerance without this side effect in vitro. The authors hypothesized that galactomannan-induced endotoxin tolerance delays acute rejection in vascular allogeneic transplantation without the side effects produced by lipopolysaccharide. METHODS Twenty-four rat hindlimb transplants were divided into four groups according to the preconditioning received: control, lipopolysaccharide (0.16 ml/kg), galactomannan 72 hours before (galactomannan-72) (8 ml/kg), and galactomannan 24 hours before (galactomannan-24) (8 ml/kg). Median acute rejection time, weight loss, and diarrheal episodes were monitored. Blood samples were collected at 0, 7, 21, 30, 45, and 60 days. Plasma cytokines (i.e., tumor necrosis factor alpha, interferon gamma), peripheral chimerism, and lymphocyte percentages were analyzed. RESULTS Median allograft survival was 40 days (range, 40 to 44 days) in the control group, 68 days (range, 61 to 71 days) in the lipopolysaccharide group, and 70 days (range, 69 to 73 days) in both galactomannan groups (p = 0.001). Weight loss was higher in the lipopolysaccharide group (p < 0.001), as was the 83.3 percent rate of diarrheal episodes (control, 0 percent, p = 0.015; galactomannan-72, 0 percent, p = 0.015; and galactomannan-24, 16.7 percent, p = 0.02). Preconditioned rats had higher peripheral blood chimerism (lipopolysaccharide, 2.30 ± 0.13 percent; galactomannan-72, 2.63 ±1.46 percent; and galactomannan-24, 2.47 ± 0.19 percent) compared to the control group (2.06 ± 0.36 percent) (lipopolysaccharide, p = 0.04; galactomannan-72, p = 0.002; and galactomannan-24, p = 0.002). CONCLUSIONS Induction of endotoxin tolerance delays acute rejection in the rat hindlimb transplantation model. Galactomannan preconditioning has no lipopolysaccharide side effects and was equally effective in delaying acute rejection. CLINICAL RELEVANCE STATEMENT The contributions of this experimental work are very incipient. Although the use of galactomannan in clinical practice requires more studies to assess its safety, there is no doubt that immunomodulation may be one of the responses that solve the problem of long-term immunosuppression.
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Giannis D, Moris D, Cendales LC. Costimulation Blockade in Vascularized Composite Allotransplantation. Front Immunol 2020; 11:544186. [PMID: 33042138 PMCID: PMC7527523 DOI: 10.3389/fimmu.2020.544186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 08/19/2020] [Indexed: 12/14/2022] Open
Abstract
Vascular composite allotransplantation (VCA) is a field under research and has emerged as an alternative option for the repair of severe disfiguring defects that result from infections or traumatic amputation in a selected group of patients. VCA is performed in centers with appropriate expertise, experience and adequate resources to effectively manage the complexity and complications of this treatment. Lifelong immunosuppressive therapy, immunosuppression associated complications, and the effects of the host immune response in the graft are major concerns in VCA. VCA is considered a quality of life transplant and the risk-benefit ratio is dissimilar to life saving transplants. Belatacept seems a promising drug that prolongs patient and graft survival in kidney transplantation and it could also be an alternative approach to VCA immunosuppression. In this review, we are summarizing current literature about the role of costimulation blockade, with a focus on belatacept in VCA.
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Affiliation(s)
- Dimitrios Giannis
- Institute of Health Innovations and Outcomes Research, Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Dimitrios Moris
- Duke Surgery, Duke University Medical Center, Durham, NC, United States
| | - Linda C. Cendales
- Duke Surgery, Duke University Medical Center, Durham, NC, United States
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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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Immunosuppression maintenance in vascularized composite allotransplantation: what is just right? Curr Opin Organ Transplant 2018; 22:463-469. [PMID: 28759463 DOI: 10.1097/mot.0000000000000456] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PURPOSE OF REVIEW Over the last two decades advances in vascularized composite allotransplantation have achieved clinically significant milestones. This review provides a synopsis for immunosuppressive maintenance therapy for VCA and discusses the nuances surrounding the determination of the right amount of immunosuppression in vascularized composite allotransplantation. RECENT FINDINGS Functional results after vascularized composite allotransplantation remain highly encouraging as are the immunologic outcomes, however, challenges persist. Currently, although conventional immunosuppressive protocols have been successful at preventing allograft loss; they have not totally prevented episodes of acute rejection in the skin. Furthermore, vascularized composite allotransplantation carries a significant risk profile attributed to the complications of life-long, high-dose immunosuppression regimens. SUMMARY Examining conventional treatment protocols can lead to the development of novel immunosuppression concepts that will ultimately assist in favorably tilting the risk-benefit scale for these life-changing transplants.
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Freitas AM, Samy KP, Farris AB, Leopardi FV, Song M, Stempora L, Strobert EA, Jenkins JA, Kirk AD, Cendales LC. Studies Introducing Costimulation Blockade for Vascularized Composite Allografts in Nonhuman Primates. Am J Transplant 2015; 15:2240-9. [PMID: 26139552 PMCID: PMC4918096 DOI: 10.1111/ajt.13379] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 04/28/2015] [Accepted: 05/04/2015] [Indexed: 01/25/2023]
Abstract
Vascularized composite allografts (VCAs) are technically feasible. Similar to other organ transplants, VCAs are hampered by the toxicity and incomplete efficacy associated with conventional immunosuppression. Complications attributable to calcineurin inhibitors remain prevalent in the clinical cases reported to date, and these loom particularly large given the nonlifesaving nature of VCAs. Additionally, acute rejection remains almost ubiquitous, albeit controllable with current agents. Costimulation blockade offers the potential to provide prophylaxis from rejection without the adverse consequences of calcineurin-based regimens. In this study, we used a nonhuman-primate model of VCA in conjunction with immunosuppressive regimens containing combinations of B7-specific costimulation blockade with and without adhesion blockade with LFA3-Ig to determine what adjunctive role these agents could play in VCA transplantation when combined with more conventional agents. Compared to tacrolimus, the addition of belatacept improved rejection free allograft survival. The combination with LFA3-Ig reduced CD2(hi) memory T cells, however did not provide additional protection against allograft rejection and hindered protective immunity. Histology paralleled clinical histopathology and Banff grading. These data provide the basis for the study of costimulation blockade in VCA in a relevant preclinical model.
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Affiliation(s)
- AM Freitas
- Emory Transplant Center, Emory University School of Medicine, 101 Woodruff Circle, Atlanta, GA 30322
| | - KP Samy
- Department of Surgery, Duke University Medical Center, 200 Trent Drive, Baker House #129, DUMC 3098, Durham, NC 27710
| | - AB Farris
- Department of Pathology & Laboratory Medicine, Emory University, 1364 Clifton Road NE, Atlanta, GA 30322
| | - FV Leopardi
- Department of Surgery, Duke University Medical Center, 200 Trent Drive, Baker House #129, DUMC 3098, Durham, NC 27710
| | - M Song
- Department of Surgery, Duke University Medical Center, 200 Trent Drive, Baker House #129, DUMC 3098, Durham, NC 27710
| | - L Stempora
- Department of Surgery, Duke University Medical Center, 200 Trent Drive, Baker House #129, DUMC 3098, Durham, NC 27710
| | - EA Strobert
- Yerkes National Primate Research Center, 954 Gatewood Road NE, Atlanta, GA 30329
| | - JA Jenkins
- Yerkes National Primate Research Center, 954 Gatewood Road NE, Atlanta, GA 30329
| | - AD Kirk
- Emory Transplant Center, Emory University School of Medicine, 101 Woodruff Circle, Atlanta, GA 30322
,Department of Surgery, Duke University Medical Center, 200 Trent Drive, Baker House #129, DUMC 3098, Durham, NC 27710
| | - LC Cendales
- Department of Surgery, Duke University Medical Center, 200 Trent Drive, Baker House #129, DUMC 3098, Durham, NC 27710
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Late nail lesions rejection in a stable bilateral forearm allograft at 60 months posttransplantation. Ann Plast Surg 2015; 73:612-4. [PMID: 25305186 DOI: 10.1097/sap.0000000000000349] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We present a case of late nail lesions rejection in a stable and compliant bilateral forearm allograft at 60 months posttransplantation, confirming that rejection features in vascularized composite tissue allotransplantation are more heterogeneous with multiple clinical implications, despite apparently appropriate immunosuppressive treatment. Our observations may help to better characterize and to fully understand the onset and dynamics of skin rejection after human hand allotransplantation; nevertheless, further investigations are required, and careful monitoring of the grafts by direct inspection is advisable in all patients to start rapidly appropriate and effective treatment.
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Antony AK, Rodby K, Tobin MK, O'Connor MI, Pearl RK, DiPietro LA, Breidenbach WC, Bartholomew AM. Composite tissue allotransplantation and dysregulation in tissue repair and regeneration: a role for mesenchymal stem cells. Front Immunol 2013; 4:188. [PMID: 23847625 PMCID: PMC3705198 DOI: 10.3389/fimmu.2013.00188] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Accepted: 06/25/2013] [Indexed: 01/09/2023] Open
Abstract
Vascularized composite tissue allotransplantation is a rapidly evolving area that has brought technological advances to the forefront of plastic surgery, hand surgery, and transplant biology. Composite tissue allografts (CTAs) may have profound functional, esthetic, and psychological benefits, but carry with them the risks of life-long immunosuppression and the inadequate abilities to monitor and prevent rejection. Allografts may suffer from additional insults further weakening their overall benefits. Changes in local blood flow, lack of fully restored neurologic function, infection, inflammation with subsequent dysregulated regenerative activity, and paucity of appropriate growth factors may all be involved in reducing the potential of CTAs and therefore serve as new therapeutic targets to improve outcomes. Strategies involving minimized immunosuppression and pro-regenerative therapy may provide a greater path to optimizing long-term CTA function. One such strategy may include mesenchymal stem cells (MSCs), which can provide unique anti-inflammatory and pro-regenerative effects. Insights gained from new studies with MSCs on composite allografts, advances in tissue regeneration reported in other MSC-based clinical studies, as well as consideration of newly described capacities of MSCs, may provide new regenerative based strategies for the care of CTAs.
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Affiliation(s)
- Anuja K Antony
- Department of Surgery, Division of Plastic, Reconstructive and Cosmetic Surgery, University of Illinois at Chicago , Chicago, IL , USA
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Soleimani A, Kamkar I, Nikoueinejad H, Moraweji A. Comparison of Cyclosporine and Sirolimus Effects on Serum Creatinine Level Over Five Years After Kidney Transplantation. Transplant Proc 2013; 45:1644-7. [DOI: 10.1016/j.transproceed.2013.01.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 12/29/2012] [Accepted: 01/15/2013] [Indexed: 12/16/2022]
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Nikoueinejad H, Soleimani A, Mirshafiey A, Amirzargar A, Sarrafnejad A, Kamkar I, Einollahi B. Conversion of calcineurin inhibitors with mammalian target of rapamycin inhibitors after kidney transplant. EXP CLIN TRANSPLANT 2013; 11:12-6. [PMID: 23387537 DOI: 10.6002/ect.2012.0118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
One way to overcome chronic allograft nephropathy induced by calcineurin inhibitors in immunosuppression protocols for organ transplants is to replace such inhibitors with mammalian target of rapamycin inhibitors, which are not clinically nephrotoxic because they have better renal function. If patients tolerate replacement, there could be a clear preference for mammalian target of rapamycin inhibitors as a maintenance immunosuppressant after renal transplant. This replacement could be sufficient if it were used for a certain time after calcineurin inhibitors. This review considers the conversion effects of calcineurin inhibitors with mammalian target of rapamycin inhibitors from the view point of kidney function during different periods after a kidney transplant.
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Abstract
Burns may represent one of the main indications for face allotransplantation. Severely disfigured faces featuring a devastating appearance and great functional impairments are not only seen as burn sequelae but also occur as a result of other traumatic injuries, oncological surgical resections, benign tumors (eg, neurofibromatosis), and major congenital malformations. To date, 20 human face composite tissue allotransplants have been performed with success. Despite the initial scepticism about its applicability, due mainly to ethical and technical reasons, the previous worldwide cases and their associated positive outcomes, including acceptable immunosuppressive regimens, excellent aesthetic and functional results, and good psychological acceptance by the recipient, enable the conclusion that face composite tissue allotransplantation has become another therapeutic strategy in the reconstructive surgical armamentarium, which bears special consideration when dealing with severely disfigured burned patients. The aim of this review is to describe the basics of face composite tissue allotransplantation and give an overview of some of the cases performed until now, with special attention paid to debating the pros and cons of its applicability in burn patients.
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Affiliation(s)
- Arno A
- Plastic Surgery Department and Burn Unit, Vall d'Hebron University Hospital, Autonomous University of Barcelona, Barcelona, Spain
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Barret JP
- Plastic Surgery Department and Burn Unit, Vall d'Hebron University Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Harrison RA
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Jeschke MG
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
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Landin L, Bonastre J, Casado-Sanchez C, Diez J, Ninkovic M, Lanzetta M, del Bene M, Schneeberger S, Hautz T, Lovic A, Leyva F, García-de-Lorenzo A, Casado-Perez C. Outcomes with respect to disabilities of the upper limb after hand allograft transplantation: a systematic review. Transpl Int 2012; 25:424-32. [PMID: 22332605 DOI: 10.1111/j.1432-2277.2012.01433.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The aim of this work is to compare disabilities of the upper limb before and after hand allograft transplantation (HAT), and to describe the side effects of immunosuppressive (IS) agents given to recipients of hand allografts. Clinical cases of HAT published between 1999 and 2011 in English, French, or German were reviewed systematically, with emphasis on comparing disabilities of the arm, shoulder and hand (DASH) scores before and after transplantation. Duration of ischemia, extent of amputation, and time since amputation were evaluated for their effect on intrinsic musculature function. Infectious, metabolic, and oncological complications because of IS therapy were recorded. Twenty-eight patients were reported in 56 clinical manuscripts. Among these patients, disabilities of the upper limb dropped by a mean of 27.6 (±19.04) points on the DASH score after HAT (P = 0.005). Lower DASH scores (P = 0.036) were recorded after secondary surgery on hand allografts. The presence of intrinsic muscle function was observed in 57% of the recipients. Duration of ischemia, extent of transplantation, and time since amputation were not associated statistically with the return of intrinsic musculature function. Three grafts were lost to follow-up because of noncompliance with immunosuppression, rejection, and arterial thrombosis, respectively. Fifty-two complications caused by IS agents were reported, and they were successfully managed medically or surgically. HAT recipients showed notable functional gains, but most complications resulted from the IS protocols.
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Affiliation(s)
- Luis Landin
- Division of Plastic and Reconstructive Surgery, University Hospital La Paz, Madrid, Spain.
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Ravindra KV, Ildstad ST. Immunosuppressive protocols and immunological challenges related to hand transplantation. Hand Clin 2011; 27:467-79, ix. [PMID: 22051388 DOI: 10.1016/j.hcl.2011.07.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
There are many immunological challenges related to hand transplantation. Curbing the immune system's ability to effectively mount an immune response against the graft is the goal. As the various components of the immune response are defined and their mechanisms of action delineated, more specific immunosuppressive agents and protocols have been developed. Complications related to immunosuppression in hand transplant recipients are similar to incidences among solid organ recipients. With longer follow-up, the increased cardiovascular risk factors or the development of a neoplasm will likely cause mortality. Standardizing immunosuppression in hand transplantation with the long-term goal of minimization is critically needed.
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Abstract
This article summarizes the findings from 3 recipients of hand allografts, including a description of the preparatory surgery and the transplant and secondary procedures to enhance the function of the hand, forearm, and arm allografts. The study focuses on the complications and disability reported by each patient, with a minimum follow-up of 2 years. The few complications were controlled successfully with medical treatment. Hand transplantation is a major reconstructive procedure that requires careful medical follow-up. The authors provide the first report of a significant improvement in disabilities of the upper limb as a result of hand allotransplantation.
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Bone Healing After Secondary Surgery on Hand Allografts Under Sirolimus-Based Maintenance Immunosuppression. Ann Plast Surg 2011; 66:667-9. [DOI: 10.1097/sap.0b013e318212686b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Schneeberger S, Landin L, Jableki J, Butler P, Hoehnke C, Brandacher G, Morelon E. Achievements and challenges in composite tissue allotransplantation. Transpl Int 2011; 24:760-9. [PMID: 21554424 DOI: 10.1111/j.1432-2277.2011.01261.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Overall, more than 60 hand/forearm/arm transplantations and 16 face transplantations have been performed in the past 12 years. In the European experience summarized here, three grafts have been lost in response to a vascular thrombosis (n = 1), rejection and incompliance with immunosuppression (n = 1) and death (n = 1). The overall functional and esthetic outcome is very satisfactory, but serious side effects and complications related to immunosuppression are challenges hindering progress in this field. The high levels of immunosuppression, skin rejection, nerve regeneration, donor legislation and the acceptance level need to be addressed to promote growth of this promising new field in transplantation and reconstructive surgery.
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Affiliation(s)
- Stefan Schneeberger
- Center for Operative Medicine, Department of Visceral, Transplant and Thoracic Surgery, Innsbruck Medical University, Innsbruck, Austria.
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Perioperative Ischemic Injury and Fibrotic Degeneration of Muscle in a Forearm Allograft. Ann Plast Surg 2011; 66:202-9. [PMID: 21200306 DOI: 10.1097/sap.0b013e318206a365] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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