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Zhang YH, Bin Liu, Meng Q, Zhang D, Yang H, Li G, Wang Y, Liu M, Liu N, Yu J, Liu S, Zhou H, Xu ZX, Wang Y. ACOX1 deficiency-induced lipid metabolic disorder facilitates chronic interstitial fibrosis development in renal allografts. Pharmacol Res 2024; 201:107105. [PMID: 38367917 DOI: 10.1016/j.phrs.2024.107105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/19/2024]
Abstract
Chronic interstitial fibrosis presents a significant challenge to the long-term survival of transplanted kidneys. Our research has shown that reduced expression of acyl-coenzyme A oxidase 1 (ACOX1), which is the rate-limiting enzyme in the peroxisomal fatty acid β-oxidation pathway, contributes to the development of fibrosis in renal allografts. ACOX1 deficiency leads to lipid accumulation and excessive oxidation of polyunsaturated fatty acids (PUFAs), which mediate epithelial-mesenchymal transition (EMT) and extracellular matrix (ECM) reorganization respectively, thus causing fibrosis in renal allografts. Furthermore, activation of Toll-like receptor 4 (TLR4)-nuclear factor kappa-B (NF-κB) signaling induced ACOX1 downregulation in a DNA methyltransferase 1 (DNMT1)-dependent manner. Overconsumption of PUFA resulted in endoplasmic reticulum (ER) stress, which played a vital role in facilitating ECM reorganization. Supplementation with PUFAs contributed to delayed fibrosis in a rat model of renal transplantation. The study provides a novel therapeutic approach that can delay chronic interstitial fibrosis in renal allografts by targeting the disorder of lipid metabolism.
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Affiliation(s)
- Yang-He Zhang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Bin Liu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Qingfei Meng
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Dan Zhang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Hongxia Yang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Guangtao Li
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Yuxiong Wang
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Mingdi Liu
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Nian Liu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Jinyu Yu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Si Liu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Honglan Zhou
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China.
| | - Zhi-Xiang Xu
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China.
| | - Yishu Wang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China.
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2
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Mutsaers SE, Krymskaya VP. Pleural Fibrosis: Now That's What mTORC(ing) About. Am J Respir Cell Mol Biol 2024; 70:8-10. [PMID: 37788451 PMCID: PMC10768835 DOI: 10.1165/rcmb.2023-0327ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/03/2023] [Indexed: 10/05/2023] Open
Affiliation(s)
- Steven E Mutsaers
- Institute for Respiratory Health and School of Biomedical Sciences The University of Western Australia Nedlands, Western Australia, Australia
| | - Vera P Krymskaya
- Department of Medicine, Lung Biology Institute Perelman School of Medicine at the University of Pennsylvania Philadelphia, Pennsylvania
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3
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Josephson MA, Becker Y, Budde K, Kasiske BL, Kiberd BA, Loupy A, Małyszko J, Mannon RB, Tönshoff B, Cheung M, Jadoul M, Winkelmayer WC, Zeier M. Challenges in the management of the kidney allograft: from decline to failure: conclusions from a Kidney Disease: Improving Global Outcomes (KDIGO) Controversies Conference. Kidney Int 2023; 104:1076-1091. [PMID: 37236423 DOI: 10.1016/j.kint.2023.05.010] [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: 04/20/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023]
Abstract
In March 2022, Kidney Disease: Improving Global Outcomes (KDIGO) held a virtual Controversies Conference to address the important but rarely examined phase during which the kidney transplant is failing or has failed. In addition to discussing the definition of a failing allograft, 4 broad areas were considered in the context of a declining functioning graft: prognosis and kidney failure trajectory; immunosuppression strategies; management of medical and psychological complications, and patient factors; and choice of kidney replacement therapy or supportive care following graft loss. Identifying and paying special attention to individuals with failing allografts was felt to be important in order to prepare patients psychologically, manage immunosuppression, address complications, prepare for dialysis and/or retransplantation, and transition to supportive care. Accurate prognostication tools, although not yet widely available, were embraced as necessary to define allograft survival trajectories and the likelihood of allograft failure. The decision of whether to withdraw or continue immunosuppression after allograft failure was deemed to be based most appropriately on risk-benefit analysis and likelihood of retransplantation within a few months. Psychological preparation and support was identified as a critical factor in patient adjustment to graft failure, as was early communication. Several models of care were noted that enabled a medically supportive transition back to dialysis or retransplantation. Emphasis was placed on the importance of dialysis-access readiness before initiation of dialysis, in order to avoid use of central venous catheters. The centrality of the patient to all management decisions and discussions was deemed to be paramount. Patient "activation," which can be defined as engaged agency, was seen as the most effective way to achieve success. Unresolved controversies, gaps in knowledge, and areas for research were also stressed in the conference deliberations.
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Affiliation(s)
- Michelle A Josephson
- Section of Nephrology, Department of Medicine, and Transplant Institute, University of Chicago, Chicago, Illinois, USA.
| | - Yolanda Becker
- Transplantation Institute, Department of Surgery, University of Chicago, Chicago, Illinois, USA
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Bertram L Kasiske
- Department of Medicine, Hennepin Healthcare, University of Minnesota, Minneapolis, Minnesota, USA
| | - Bryce A Kiberd
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Alexandre Loupy
- Université Paris Cité, INSERM U970, Paris Institute for Transplantation and Organ Regeneration, F-75015 Paris, France; Department of Kidney Transplantation, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Jolanta Małyszko
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Roslyn B Mannon
- Division of Nephrology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Burkhard Tönshoff
- Department of Pediatrics I, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Michael Cheung
- Kidney Disease: Improving Global Outcomes (KDIGO), Brussels, Belgium
| | - Michel Jadoul
- Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Wolfgang C Winkelmayer
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Martin Zeier
- Division of Nephrology, University of Heidelberg, Heidelberg, Germany.
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4
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Naesens M, Budde K, Hilbrands L, Oberbauer R, Bellini MI, Glotz D, Grinyó J, Heemann U, Jochmans I, Pengel L, Reinders M, Schneeberger S, Loupy A. Surrogate Endpoints for Late Kidney Transplantation Failure. Transpl Int 2022; 35:10136. [PMID: 35669974 PMCID: PMC9163814 DOI: 10.3389/ti.2022.10136] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/18/2022] [Indexed: 12/13/2022]
Abstract
In kidney transplant recipients, late graft failure is often multifactorial. In addition, primary endpoints in kidney transplantation studies seek to demonstrate the short-term efficacy and safety of clinical interventions. Although such endpoints might demonstrate short-term improvement in specific aspects of graft function or incidence of rejection, such findings do not automatically translate into meaningful long-term graft survival benefits. Combining many factors into a well-validated model is therefore more likely to predict long-term outcome and better reflect the complexity of late graft failure than using single endpoints. If conditional marketing authorization could be considered for therapies that aim to improve long-term outcomes following kidney transplantation, then the surrogate endpoint for graft failure in clinical trial settings needs clearer definition. This Consensus Report considers the potential benefits and drawbacks of several candidate surrogate endpoints (including estimated glomerular filtration rate, proteinuria, histological lesions, and donor-specific anti-human leukocyte antigen antibodies) and composite scoring systems. The content was created from information prepared by a working group within the European Society for Organ Transplantation (ESOT). The group submitted a Broad Scientific Advice request to the European Medicines Agency (EMA), June 2020: the request focused on clinical trial design and endpoints in kidney transplantation. Following discussion and refinement, the EMA made final recommendations to ESOT in December 2020 regarding the potential to use surrogate endpoints in clinical studies that aim to improving late graft failure.
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Affiliation(s)
- Maarten Naesens
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Luuk Hilbrands
- Department of Nephrology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Rainer Oberbauer
- Department of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria
| | | | - Denis Glotz
- Paris Translational Research Center for Organ Transplantation, Hôpital Saint Louis, Paris, France
| | | | - Uwe Heemann
- Department of Nephrology, Technical University of Munich, Munich, Germany
| | - Ina Jochmans
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Liset Pengel
- Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - Marlies Reinders
- Department of Internal Medicine, Erasmus MC Transplant Institute, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Stefan Schneeberger
- Department of General, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Alexandre Loupy
- Paris Translational Research Center for Organ Transplantation, Hôpital Necker, Paris, France
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5
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Xiao M, Medipally AK, Biederman L, Satoskar AA, Ivanov I, Rovin BH, Brodsky SV. Chronic Hematuria Increases Chronic Kidney Injury and Epithelial-Mesenchymal Transition in 5/6 Nephrectomy Rats. Front Med (Lausanne) 2021; 8:753506. [PMID: 34901065 PMCID: PMC8655688 DOI: 10.3389/fmed.2021.753506] [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: 08/04/2021] [Accepted: 10/19/2021] [Indexed: 11/29/2022] Open
Abstract
Chronic kidney disease (CKD) is a common outcome of many kidney diseases. Interstitial fibrosis and tubular atrophy (IFTA) is a histologic hallmark of CKD. Hematuria is a common symptom in many human kidney diseases. Free hemoglobin may affect tubular epithelial cells by generating reactive oxygen species (ROS). Epithelial–mesenchymal transition (EMT) of the tubular epithelial cells has been shown to play an important role in the IFTA development. The aim of this study was to determine the effects of chronic hematuria on the CKD progression in 5/6 nephrectomy (5/6NE) rat model of CKD. 5/6 NE rats were treated with oral warfarin (0.5 mg/kg/day) or vehicle (control). The animals were monitored for 26 weeks, while prothrombin time (PT), serum creatinine (SCr), and hematuria were measured weekly. Staining for iron, trichrome, and EMT (vimentin, E-cadherin, smooth muscle actin) markers was performed on the remnant kidneys. ROS were detected in the kidneys by protein carbonyl assay and immunohistochemistry for heme oxygenase 1 (HMOX1), at the end of the study. Apoptosis was detected by TUNEL assay. Warfarin treatment resulted in a PT increase 1.5–2.5 times from control and an increase in hematuria and SCr. Histologically, warfarin-treated animals had more iron-positive tubular epithelial cells and increased IFTA as compared to control (42.9 ± 17% vs. 18.3 ± 2.6%). ROS were increased in the kidney in warfarin-treated rats. The number of tubules that show evidence of EMT was significantly higher in warfarin-treated 5/6NE as compared to control 5/6NE rats. The number of apoptotic tubular epithelial cells was higher in warfarin-treated 5/6 NE rats. Chronic hematuria results in increased iron-positive tubular epithelial cells, EMT, apoptosis, and more prominent IFTA in CKD rats. Our data suggest an important role of chronic hematuria in the progression of CKD.
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Affiliation(s)
- Min Xiao
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Ajay K Medipally
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Laura Biederman
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States.,Department of Pathology, Nationwide Children Hospital, Columbus, OH, United States
| | - Anjali A Satoskar
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Iouri Ivanov
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Brad H Rovin
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Sergey V Brodsky
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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6
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Raynaud M, Aubert O, Divard G, Reese PP, Kamar N, Yoo D, Chin CS, Bailly É, Buchler M, Ladrière M, Le Quintrec M, Delahousse M, Juric I, Basic-Jukic N, Crespo M, Silva HT, Linhares K, Ribeiro de Castro MC, Soler Pujol G, Empana JP, Ulloa C, Akalin E, Böhmig G, Huang E, Stegall MD, Bentall AJ, Montgomery RA, Jordan SC, Oberbauer R, Segev DL, Friedewald JJ, Jouven X, Legendre C, Lefaucheur C, Loupy A. Dynamic prediction of renal survival among deeply phenotyped kidney transplant recipients using artificial intelligence: an observational, international, multicohort study. LANCET DIGITAL HEALTH 2021; 3:e795-e805. [PMID: 34756569 DOI: 10.1016/s2589-7500(21)00209-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/22/2021] [Accepted: 08/17/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Kidney allograft failure is a common cause of end-stage renal disease. We aimed to develop a dynamic artificial intelligence approach to enhance risk stratification for kidney transplant recipients by generating continuously refined predictions of survival using updates of clinical data. METHODS In this observational study, we used data from adult recipients of kidney transplants from 18 academic transplant centres in Europe, the USA, and South America, and a cohort of patients from six randomised controlled trials. The development cohort comprised patients from four centres in France, with all other patients included in external validation cohorts. To build deeply phenotyped cohorts of transplant recipients, the following data were collected in the development cohort: clinical, histological, immunological variables, and repeated measurements of estimated glomerular filtration rate (eGFR) and proteinuria (measured using the proteinuria to creatininuria ratio). To develop a dynamic prediction system based on these clinical assessments and repeated measurements, we used a Bayesian joint models-an artificial intelligence approach. The prediction performances of the model were assessed via discrimination, through calculation of the area under the receiver operator curve (AUC), and calibration. This study is registered with ClinicalTrials.gov, NCT04258891. FINDINGS 13 608 patients were included (3774 in the development cohort and 9834 in the external validation cohorts) and contributed 89 328 patient-years of data, and 416 510 eGFR and proteinuria measurements. Bayesian joint models showed that recipient immunological profile, allograft interstitial fibrosis and tubular atrophy, allograft inflammation, and repeated measurements of eGFR and proteinuria were independent risk factors for allograft survival. The final model showed accurate calibration and very high discrimination in the development cohort (overall dynamic AUC 0·857 [95% CI 0·847-0·866]) with a persistent improvement in AUCs for each new repeated measurement (from 0·780 [0·768-0·794] to 0·926 [0·917-0·932]; p<0·0001). The predictive performance was confirmed in the external validation cohorts from Europe (overall AUC 0·845 [0·837-0·854]), the USA (overall AUC 0·820 [0·808-0·831]), South America (overall AUC 0·868 [0·856-0·880]), and the cohort of patients from randomised controlled trials (overall AUC 0·857 [0·840-0·875]). INTERPRETATION Because of its dynamic design, this model can be continuously updated and holds value as a bedside tool that could refine the prognostic judgements of clinicians in everyday practice, hence enhancing precision medicine in the transplant setting. FUNDING MSD Avenir, French National Institute for Health and Medical Research, and Bettencourt Schueller Foundation.
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Affiliation(s)
- Marc Raynaud
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France
| | - Olivier Aubert
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France; Kidney Transplant Department, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Gillian Divard
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France; Kidney Transplant Department, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Peter P Reese
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France; Renal Electrolyte and Hypertension Division, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Nassim Kamar
- Université Paul Sabatier, INSERM, Department of Nephrology and Organ Transplantation, CHU Rangueil & Purpan, Toulouse, France
| | - Daniel Yoo
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France
| | - Chen-Shan Chin
- Deep Learning in Medicine and Genomics, DNAnexus, San Francisco, CA, USA
| | - Élodie Bailly
- Nephrology and Immunology Department, Bretonneau Hospital, Tours, France
| | - Matthias Buchler
- Nephrology and Immunology Department, Bretonneau Hospital, Tours, France
| | - Marc Ladrière
- Nephrology Dialysis Transplantation Department, University of Lorraine, Centre Hospitalier Universitaire Nancy, Nancy, France
| | - Moglie Le Quintrec
- Department of Nephrology, Centre Hospitalier Universitaire Montpellier, Montpellier, France
| | - Michel Delahousse
- Department of Transplantation, Nephrology and Clinical Immunology, Foch Hospital, Suresnes, France
| | - Ivana Juric
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
| | - Nikolina Basic-Jukic
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
| | - Marta Crespo
- Department of Nephrology, Hospital del Mar Barcelona, Spain
| | - Helio Tedesco Silva
- Hospital do Rim, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Kamilla Linhares
- Hospital do Rim, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Gervasio Soler Pujol
- Unidad de Trasplante Renopancreas, Centro de Educacion Medica e Investigaciones Clinicas Buenos Aires, Buenos Aires, Argentina
| | - Jean-Philippe Empana
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France
| | - Camilo Ulloa
- Kidney Transplantation Department, Clinica Alemana de Santiago, Santiago, Chile
| | - Enver Akalin
- Renal Division Montefiore Medical Centre, Kidney Transplantation Program, Albert Einstein College of Medicine, NY, USA
| | - Georg Böhmig
- Division of Nephrology and Dialysis, Department of Medicine III, General Hospital Vienna, Vienna, Austria
| | - Edmund Huang
- Department of Medicine, Division of Nephrology, Comprehensive Transplant Centre, Cedars Sinai Medical Centre, Los Angeles, CA, USA
| | - Mark D Stegall
- William J von Liebig Centre for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, USA
| | - Andrew J Bentall
- William J von Liebig Centre for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, USA
| | | | - Stanley C Jordan
- Department of Medicine, Division of Nephrology, Comprehensive Transplant Centre, Cedars Sinai Medical Centre, Los Angeles, CA, USA
| | | | - Dorry L Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - John J Friedewald
- Kidney Transplantation Department, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Xavier Jouven
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France; Cardiology Department, European Georges Pompidou Hospital, Paris, France
| | - Christophe Legendre
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France; Kidney Transplant Department, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Carmen Lefaucheur
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France; Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Alexandre Loupy
- Paris Translational Research Centre for Organ Transplantation, INSERM, PARCC, Université de Paris, Paris, France; Kidney Transplant Department, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France.
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7
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Aubert O, Divard G, Pascual J, Oppenheimer F, Sommerer C, Citterio F, Tedesco H, Chadban S, Henry M, Vincenti F, Srinivas T, Watarai Y, Legendre C, Bernhardt P, Loupy A. Application of the iBox prognostication system as a surrogate endpoint in the TRANSFORM randomised controlled trial: proof-of-concept study. BMJ Open 2021; 11:e052138. [PMID: 34620664 PMCID: PMC8499283 DOI: 10.1136/bmjopen-2021-052138] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Development of pharmaceutical agents in transplantation is currently limited by long waits for hard endpoints. We applied a validated integrative risk-prognostication system integrative Box (iBox) as a surrogate endpoint to the TRANSFORM Study, a large randomised controlled trial, to project individual patient long-term kidney allograft survival from 1 year to 11 years after randomisation. DESIGN Post-hoc analysis of a randomised open-label controlled trial. SETTING Multicentre study including 186 centres in 42 countries worldwide. PARTICIPANTS 2037 de novo kidney transplant recipients. INTERVENTION Participants were randomised (1:1) to receive everolimus with reduced-exposure calcineurin inhibitor (EVR+rCNI) or mycophenolic acid with standard-exposure CNI (MPA+sCNI). PRIMARY OUTCOME MEASURE The iBox scores were computed for each participant at 1 year after randomisation using functional, immunological and histological parameters. Individual long-term death-censored allograft survival over 4, 6 and 11 years after randomisation was projected with the iBox risk-prognostication system. RESULTS Overall, 940 patients receiving EVR+rCNI and 932 receiving MPA+sCNI completed the 1-year visit. iBox scores generated at 1 year yielded graft survival prediction rates of 90.9% vs 92.1%, 87.9% vs 89.5%, and 80.0% vs 82.4% in the EVR+rCNI versus MPA+sCNI arms at 4, 6, and 11 years post-randomisation, respectively (all differences below the 10% non-inferiority margin defined by study protocol). Inclusion of immunological and histological Banff diagnoses parameters in iBox scores resulted in comparable and non-inferior predicted graft survival for both treatments. CONCLUSIONS This proof-of-concept study provides the first application of a validated prognostication system as a surrogate endpoint in the field of transplantation. The iBox system, by projecting kidney allograft survival up to 11 years post-randomisation, confirms the non-inferiority of EVR+rCNI versus MPA+sCNI regimen. Given the current process engaged for surrogate endpoints qualification, this study illustrates the potential to fast track development of pharmaceutical agents. TRIAL REGISTRATION NUMBER TRANSFORM trial: NCT01950819.iBox prognostication system: NCT03474003.
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Affiliation(s)
- Olivier Aubert
- University of Paris, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, APHP, Paris, France
| | - Gillian Divard
- University of Paris, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, APHP, Paris, France
| | - Julio Pascual
- Department of Nephrology, Hospital del Mar, Barcelona, Spain
| | - Federico Oppenheimer
- Department of Nephrology and Renal Transplantation, Renal Transplant Unit, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Claudia Sommerer
- Department of Nephrology, University Hospital Heidelberg, Heidelberg, Germany
| | - Franco Citterio
- Agostino Gemelli University Polyclinic Foundation, Catholic University of the Sacred Heart, Milan, Italy
| | - Helio Tedesco
- Nephrology Division, Hospital do Rim, UNIFESP, Sao Paulo, Brazil
| | - Steve Chadban
- Department of Renal Medicine and Transplantation, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Mitchell Henry
- Department of Surgery, The Comprehensive Transplant Center, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Flavio Vincenti
- Department of Surgery, Kidney Transplant Service, University of California San Francisco, San Francisco, California, USA
| | - Titte Srinivas
- Division of Nephrology and Hypertension, University Hospitals of Cleveland, Cleveland, Ohio, USA
| | - Yoshihiko Watarai
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Christophe Legendre
- University of Paris, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, APHP, Paris, France
| | - Peter Bernhardt
- Department of Research and Development, Novartis, Basel, Switzerland
| | - Alexandre Loupy
- University of Paris, INSERM, PARCC, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, APHP, Paris, France
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8
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Tedesco-Silva H, Saliba F, Barten MJ, De Simone P, Potena L, Gottlieb J, Gawai A, Bernhardt P, Pascual J. An overview of the efficacy and safety of everolimus in adult solid organ transplant recipients. Transplant Rev (Orlando) 2021; 36:100655. [PMID: 34696930 DOI: 10.1016/j.trre.2021.100655] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/17/2021] [Accepted: 09/17/2021] [Indexed: 12/15/2022]
Abstract
As the risk of graft loss due to acute rejection has declined, the goal of post-transplant management has switched to long-term preservation of organ function. Minimizing calcineurin inhibitor (CNI)-related nephrotoxicity is a key component of this objective. Everolimus is a mammalian target of rapamycin inhibitor/proliferation-signal inhibitor with potent immunosuppressive and anti-proliferative effects. It has been widely investigated in large randomized clinical studies that have shown it to have similar anti-rejection efficacy compared with standard-of-care regimens across organ transplant indications. With demonstrated potential to facilitate the reduction of CNI therapy and preserve renal function, everolimus is an alternative to the current standard-of-care CNI-based regimens used in de novo and maintenance solid organ transplantation recipients. Here, we provide an overview of the evidence from the everolimus clinical study program across kidney, liver, heart, and lung transplants, as well as other key data associated with its use in CNI reduction strategies in adult transplant recipients.
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Affiliation(s)
| | - Faouzi Saliba
- AP-HP_Hôpital Paul Brousse, Hepato-Biliary Centre, Villejuif, France; Université Paris-Saclay, INSERM Unit 1193, France
| | - Markus J Barten
- Department of Cardiovascular Surgery, University Heart Center Hamburg, Hamburg, Germany
| | | | - Luciano Potena
- Heart Failure and Transplant Program, Cardiology Unit, IRCCS Policlinico di Sant'Orsola, Bologna, Italy
| | - Jens Gottlieb
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
| | | | | | - Julio Pascual
- Department of Nephrology, Hospital del Mar, Barcelona, Spain.
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9
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Zeng J, Zhong Q, Feng X, Li L, Feng S, Fan Y, Song T, Huang Z, Wang X, Lin T. Conversion From Calcineurin Inhibitors to Mammalian Target of Rapamycin Inhibitors in Kidney Transplant Recipients: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Front Immunol 2021; 12:663602. [PMID: 34539621 PMCID: PMC8446650 DOI: 10.3389/fimmu.2021.663602] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 08/16/2021] [Indexed: 02/05/2023] Open
Abstract
Background A systematic review and meta-analysis were performed to investigate the efficacy and safety of conversion from calcineurin inhibitors (CNIs) to mammalian target of rapamycin inhibitors (mTORi) in kidney transplant recipients (KTRs). Methods MEDLINE, EMBASE, PubMed, and Cochrane Library were searched to identify randomized controlled trials (RCTs) that compared the continuation of CNI with conversion to mTORi therapy. Results Twenty-nine RCTs (5,747 KTRs) were included in our analysis. Meta-analysis of the glomerular filtration rate (SMD 0.20; 95%CI 0.10-0.31; P<0.01) and malignancy (RR 0.74; 95%CI 0.55-0.99; P=0.04) demonstrated a significant advantage of mTORi conversion over CNI continuation. However, the risk of acute rejection (RR 1.58; 95%CI 1.22-2.04; P<0.01), infection (RR 1.55; 95%CI 1.01-1.31; P=0.04), proteinuria (RR 1.87; 95%CI 1.34-2.59; P<0.01), leukopenia (RR 1.56; 95%CI 1.27-1.91; P<0.01), acne (RR 6.43; 95%CI 3.43-12.04; P<0.01), and mouth ulcer (RR 11.70; 95%CI 6.18-22.17; P<0.01) were higher in the mTORi group. More patients in the conversion group had to discontinue study medication (RR 2.52; 95%CI 1.75-3.63; P<0.01). There was no significant difference between the two groups with regard to death, graft loss, diabetes, chronic allograft nephropathy, and interstitial fibrosis/tubular atrophy. Conclusions Posttransplant patients have a better graft function and lower incidence of malignancy after conversion from CNI to mTORi therapy. However, this conversion strategy may be prevented by the higher drug discontinuation rate due to mTORi-associated adverse events, such as more acute rejection, infection, proteinuria, leukopenia, acne, and mouth ulcer, indicating that conversion therapy may only be a treatment option in selected patients.
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Affiliation(s)
- Jun Zeng
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Qiang Zhong
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaobing Feng
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Linde Li
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shijian Feng
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Fan
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Turun Song
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Zhongli Huang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xianding Wang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Lin
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,Organ Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
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10
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El Hennawy HM, Faifi ASA, El Nazer W, Mahedy A, Kamal A, Al Faifi IS, Abdulmalik H, Safar O, Zaitoun MF, Fahmy AE. Calcineurin Inhibitors Nephrotoxicity Prevention Strategies With Stress on Belatacept-Based Rescue Immunotherapy: A Review of the Current Evidence. Transplant Proc 2021; 53:1532-1540. [PMID: 34020797 DOI: 10.1016/j.transproceed.2021.03.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 03/10/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND A traditional narrative review was performed to evaluate clinical studies that have examined the clinical implications, risk factors, and prevention of calcineurin inhibitors (CNIs) nephrotoxicity with stress on a belatacept-based rescue regimen. METHODS The Cochrane Library, PubMed/MEDLINE, EBSCO (Academic Search Ultimate), ProQuest (Central), and Excerpta Medical databases and Google scholar were searched using the keywords (CNI AND Nephrotoxicity prevention) OR ("Calcineurin inhibitor" AND Nephrotoxicity) OR (Tacrolimus AND Nephrotoxicity) OR (Ciclosporin AND Nephrotoxicity) OR (cyclosporine AND Nephrotoxicity) OR (Belatacept) OR (CNI Conversion) for the period from 1990 to 2020. Fifty-five related articles and reviews were found. CONCLUSION A better understanding of the mechanisms underlying calcineurin inhibitor nephrotoxicity could help in the individualization of therapy for and prevention of CNI nephrotoxicity. Identification of high-risk patients for CNI nephrotoxicity before renal transplantation enables better use and selection of immunosuppression with reduced adverse effects and, eventually, successful treatment of the kidney recipients. Belatacept conversion is a good and safe option in patients with deteriorating renal function attributed to CNI nephrotoxicity.
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Affiliation(s)
- Hany M El Hennawy
- Transplant Surgery Section, Surgery Department, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia.
| | - Abdullah S Al Faifi
- Transplant Surgery Section, Surgery Department, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia
| | - Weam El Nazer
- Nephrology Department, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia
| | - Ahmed Mahedy
- Nephrology Department, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia
| | - Ahmed Kamal
- Nephrology Department, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia
| | - Ibrahim S Al Faifi
- Department of Family Medicine, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia
| | - Hana Abdulmalik
- Department of Surgery, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Omar Safar
- Department of Urology, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia
| | - Mohammad F Zaitoun
- Department of Pharmacy, Armed Forces Hospital-Southern Regions, Khamis Mushayt, Saudi Arabia
| | - Ahmed E Fahmy
- Department of Surgery, Division of Transplantation, North Shore University Hospital, Northwell Health, Manhasset, New York
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11
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Prospective Measures of Adherence by Questionnaire, Low Immunosuppression and Graft Outcome in Kidney Transplantation. J Clin Med 2021; 10:jcm10092032. [PMID: 34068497 PMCID: PMC8125965 DOI: 10.3390/jcm10092032] [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: 03/23/2021] [Revised: 04/20/2021] [Accepted: 04/28/2021] [Indexed: 01/05/2023] Open
Abstract
Background: Non-adherence with immunosuppressant medication (MNA) fosters development of de novo donor-specific antibodies (dnDSA), rejection, and graft failure (GF) in kidney transplant recipients (KTRs). However, there is no simple tool to assess MNA, prospectively. The goal was to monitor MNA and analyze its predictive value for dnDSA generation, acute rejection and GF. Methods: We enrolled 301 KTRs in a multicentric French study. MNA was assessed prospectively at 3, 6, 12, and 24 months (M) post-KT, using the Morisky scale. We investigated the association between MNA and occurrence of dnDSA at year 2 post transplantation, using logistic regression models and the association between MNA and rejection or graft failure, using Cox multivariable models. Results: The initial percentage of MNA patients was 17.7%, increasing to 34.6% at 24 months. Nineteen patients (8.4%) developed dnDSA 2 to 3 years after KT. After adjustment for recipient age, HLA sensitization, HLA mismatches, and maintenance treatment, MNA was associated neither with dnDSA occurrence, nor acute rejection. Only cyclosporine use and calcineurin inhibitor (CNI) withdrawal were strongly associated with dnDSA and rejection. With a median follow-up of 8.9 years, GF occurred in 87 patients (29.0%). After adjustment for recipient and donor age, CNI trough level, dnDSA, and rejection, MNA was not associated with GF. The only parameters associated with GF were dnDSA occurrence, and acute rejection. Conclusions: Prospective serial monitoring of MNA using the Morisky scale does not predict dnDSA occurrence, rejection or GF in KTRs. In contrast, cyclosporine and CNI withdrawal induce dnDSA and rejection, which lead to GF.
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12
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Clinical Relevance of Corticosteroid Withdrawal on Graft Histological Lesions in Low-Immunological-Risk Kidney Transplant Patients. J Clin Med 2021; 10:jcm10092005. [PMID: 34067039 PMCID: PMC8125434 DOI: 10.3390/jcm10092005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 12/14/2022] Open
Abstract
The impact of corticosteroid withdrawal on medium-term graft histological changes in kidney transplant (KT) recipients under standard immunosuppression is uncertain. As part of an open-label, multicenter, prospective, phase IV, 24-month clinical trial (ClinicalTrials.gov, NCT02284464) in low-immunological-risk KT recipients, 105 patients were randomized, after a protocol-biopsy at 3 months, to corticosteroid continuation (CSC, n = 52) or corticosteroid withdrawal (CSW, n = 53). Both groups received tacrolimus and MMF and had another protocol-biopsy at 24 months. The acute rejection rate, including subclinical inflammation (SCI), was comparable between groups (21.2 vs. 24.5%). No patients developed dnDSA. Inflammatory and chronicity scores increased from 3 to 24 months in patients with, at baseline, no inflammation (NI) or SCI, regardless of treatment. CSW patients with SCI at 3 months had a significantly increased chronicity score at 24 months. HbA1c levels were lower in CSW patients (6.4 ± 1.2 vs. 5.7 ± 0.6%; p = 0.013) at 24 months, as was systolic blood pressure (134.2 ± 14.9 vs. 125.7 ± 15.3 mmHg; p = 0.016). Allograft function was comparable between groups and no patients died or lost their graft. An increase in chronicity scores at 2-years post-transplantation was observed in low-immunological-risk KT recipients with initial NI or SCI, but CSW may accelerate chronicity changes, especially in patients with early SCI. This strategy did, however, improve the cardiovascular profiles of patients.
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13
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Préterre J, Visentin J, Saint Cricq M, Kaminski H, Del Bello A, Prezelin-Reydit M, Merville P, Kamar N, Couzi L. Comparison of two strategies based on mammalian target of rapamycin inhibitors in secondary prevention of non-melanoma skin cancer after kidney transplantation, a pilot study. Clin Transplant 2021; 35:e14207. [PMID: 33369772 DOI: 10.1111/ctr.14207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 01/05/2023]
Abstract
After kidney transplantation, withdrawal of calcineurin inhibitors (CNI) and conversion to sirolimus (SRL) may reduce the occurrence of new non-melanoma skin cancer (NMSC). Conversely, a reduced CNI exposure with everolimus (EVR) is an alternative strategy that has not been thoroughly evaluated. We retrospectively compared the occurrence of newly diagnosed NMSCs in two cohorts of kidney transplant recipients (KTR) with at least one NMSC: 35 patients were converted to EVR with reduced CNI exposure (CNI/EVR group), whereas 46 patients were converted to SRL in association with mycophenolic acid (MPA) (SRL/MPA group). Two years after conversion, survival free of new NMSC was similar between the two cohorts (p = .37), with 19 KTR (54.3%) in the CNI/EVR group and 22 (47.8%) in the SRL/MPA group being diagnosed of at least one new NMSC. Half of the KTR from both groups showed adverse events, leading to mTORi discontinuation for 37.1% of KTR in the CNI/EVR group and 21.7% in the SRL/MPA group (p = .09). The incidence of rejections was similar between the two groups. In a retrospective cohort of KTR with at least one post-transplant NMSC, the outcome of the patients converted to a CNI/EVR regimen was not different from those converted to a SRL/MPA regimen.
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Affiliation(s)
- Julie Préterre
- CHU de Bordeaux, Service de Néphrologie-Transplantation-Dialyse-Aphérèse, Hôpital Pellegrin, Bordeaux, France
| | - Jonathan Visentin
- CHU de Bordeaux, Service d'Immunologie et Immunogénétique, Hôpital Pellegrin, Bordeaux, France.,Université de Bordeaux, CNRS "ImmunoConcEpT" UMR 5164, Bordeaux, France
| | - Morgane Saint Cricq
- Department of Nephrology, Dialysis and Organ Transplantation, Hôpital Rangueil, CHU de Toulouse, Toulouse, France
| | - Hannah Kaminski
- CHU de Bordeaux, Service de Néphrologie-Transplantation-Dialyse-Aphérèse, Hôpital Pellegrin, Bordeaux, France.,Université de Bordeaux, CNRS "ImmunoConcEpT" UMR 5164, Bordeaux, France
| | - Arnaud Del Bello
- Department of Nephrology, Dialysis and Organ Transplantation, Hôpital Rangueil, CHU de Toulouse, Toulouse, France.,Centre de Physiopathologie Toulouse Purpan, University Paul Sabatier, INSERM U1043, Toulouse, France
| | - Mathilde Prezelin-Reydit
- CHU de Bordeaux, Service de Néphrologie-Transplantation-Dialyse-Aphérèse, Hôpital Pellegrin, Bordeaux, France
| | - Pierre Merville
- CHU de Bordeaux, Service de Néphrologie-Transplantation-Dialyse-Aphérèse, Hôpital Pellegrin, Bordeaux, France.,Université de Bordeaux, CNRS "ImmunoConcEpT" UMR 5164, Bordeaux, France
| | - Nassim Kamar
- Department of Nephrology, Dialysis and Organ Transplantation, Hôpital Rangueil, CHU de Toulouse, Toulouse, France.,Centre de Physiopathologie Toulouse Purpan, University Paul Sabatier, INSERM U1043, Toulouse, France
| | - Lionel Couzi
- CHU de Bordeaux, Service de Néphrologie-Transplantation-Dialyse-Aphérèse, Hôpital Pellegrin, Bordeaux, France.,Université de Bordeaux, CNRS "ImmunoConcEpT" UMR 5164, Bordeaux, France
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14
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Pipeleers L, Abramowicz D, Broeders N, Lemoine A, Peeters P, Van Laecke S, Weekers LE, Sennesael J, Wissing KM, Geers C, Bosmans JL. 5-Year outcomes of the prospective and randomized CISTCERT study comparing steroid withdrawal to replacement of cyclosporine with everolimus in de novo kidney transplant patients. Transpl Int 2020; 34:313-326. [PMID: 33277746 DOI: 10.1111/tri.13798] [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: 09/17/2020] [Revised: 10/13/2020] [Accepted: 12/01/2020] [Indexed: 11/27/2022]
Abstract
Withdrawal of either steroids or calcineurin inhibitors are two strategies to reduce treatment-related side effects and improve long-term outcomes of kidney transplantation. The CISTCERT study compared the efficacy and safety of these two strategies. In this multicenter, randomized controlled trial, 151 incident kidney transplant recipients received cyclosporine (CsA), mycophenolic acid (MPA), and steroids during three months, followed by either steroid withdrawal (CsA/MPA) or replacement of cyclosporine with everolimus (EVL) (EVL/MPA/steroids). 5-year patient survival (89% vs. 86%; P = NS) and death-censored graft survival (95% vs. 96%; P = NS) were comparable in the CsA/MPA and EVL/MPA/steroids arm, respectively. 51 CrEDTA clearance was comparable in the intention-to-treat analysis, but in the on-treatment population, the EVL/MPA/steroids arm exhibited a superior 51 CrEDTA clearance at 1 and 5 years after transplantation (61.6 vs. 52.4, P = 0.05 and 59.1 vs. 46.2ml/min/1.73 m2 , P = 0.042). Numerically more and more severe rejections were observed in the EVL/MPA/steroids arm, which also experienced a higher incidence of posttransplant diabetes (26% vs. 6%, P = 0.0016) and infections. No significant differences were observed in cardiovascular outcomes and malignancy. Both regimens provide an excellent long-term patient survival and graft survival. Regarding graft function, EVL/MPA/steroids is an attractive strategy for patients with good tolerability who remain free of rejection. (ClinicalTrials.gov number: NCT00903188; EudraCT Number 2007-005844-26).
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Affiliation(s)
- Lissa Pipeleers
- Department of Nephrology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Daniel Abramowicz
- Department of Nephrology, Centre Universitaire de Bruxelles - Hôpital Erasme, Brussels, Belgium.,Department of Nephrology, Universitair Ziekenhuis Antwerpen, Antwerp, Belgium
| | - Nilufer Broeders
- Department of Nephrology, Centre Universitaire de Bruxelles - Hôpital Erasme, Brussels, Belgium
| | - Alain Lemoine
- Department of Nephrology, Centre Universitaire de Bruxelles - Hôpital Erasme, Brussels, Belgium
| | - Patrick Peeters
- Renal Division, Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | - Steven Van Laecke
- Renal Division, Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | - Laurent E Weekers
- Department of Nephrology, Centre Hospitalier Universitaire de Liège, Domaine Universitaire du Sart Tilman, Liège, Belgium
| | - Jacques Sennesael
- Department of Nephrology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Karl M Wissing
- Department of Nephrology, Universitair Ziekenhuis Brussel, Brussels, Belgium.,Department of Nephrology, Centre Universitaire de Bruxelles - Hôpital Erasme, Brussels, Belgium
| | - Caroline Geers
- Department of Pathology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Jean-Louis Bosmans
- Department of Nephrology, Universitair Ziekenhuis Antwerpen, Antwerp, Belgium
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15
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Gouin A, Sberro-Soussan R, Courivaud C, Bertrand D, Del Bello A, Darres A, Ducloux D, Legendre C, Kamar N. Conversion From Belatacept to Another Immunosuppressive Regimen in Maintenance Kidney-Transplantation Patients. Kidney Int Rep 2020; 5:2195-2201. [PMID: 33305112 PMCID: PMC7710888 DOI: 10.1016/j.ekir.2020.09.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/22/2020] [Accepted: 09/15/2020] [Indexed: 11/29/2022] Open
Abstract
Introduction During the coronavirus disease 2019 (Covid-19) pandemic, several physicians have questioned pursuing belatacept in kidney-transplant patients in order to reduce the risk of nosocomial transmission during the monthly infusion. The effect of the conversion from belatacept to another immunosuppressive regimen is underreported. The aim of the present retrospective study was to assess the effect on kidney function and the clinical outcome of the conversion from belatacept to another regimen. Methods We have identified 44 maintenance kidney transplantation patients from five French kidney transplantation centers who were converted from belatacept to another regimen either because of a complication (n = 28) or another reason (patients’ request or belatacept shortage, n = 13). The follow-up after the conversion from belatacept was 27.5 ± 25.3 months. Results Overall, mean estimated glomerular filtration rate (eGFR) decreased from 44.2 ± 16 ml/min per 1.73 m2 at conversion from belatacept to 35.7 ± 18.4 ml/min per 1.73 m2 at last follow-up (P = 0.0002). eGFR significantly decreased in patients who had been given belatacept at transplantation as well as in those who had been converted to belatacept earlier. The decrease was less significant in patients who had stopped belatacept without having experienced any complications. Finally, eGFR decreased more severely in patients who were converted to calcineurin inhibitors (CNIs), compared to those who received mammalian target of rapamycin inhibitor (mTORi). Few patients also developed diabetes and hypertension. Conclusions Thus, transplantation physicians should avoid stopping belatacept when not clinically required.
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Affiliation(s)
- Anna Gouin
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France
| | - Rebecca Sberro-Soussan
- Service de néphrologie-Transplantation, Hôpital Necker, AP-HP, Paris et Université Paris Descartes, Paris
| | - Cécile Courivaud
- Service de néphrologie, dialyse et transplantation rénale, FHU INCREASE, CHU de Besançon, Besançon, France
| | - Dominique Bertrand
- Service de néphrologie, dialyse et transplantation rénale, CHU de Rouen, Rouen, France
| | - Arnaud Del Bello
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France.,INSERM U1043, IFR-BMT, CHU Purpan, Toulouse, France
| | - Amandine Darres
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France
| | - Didier Ducloux
- Service de néphrologie, dialyse et transplantation rénale, FHU INCREASE, CHU de Besançon, Besançon, France
| | - Christophe Legendre
- Service de néphrologie-Transplantation, Hôpital Necker, AP-HP, Paris et Université Paris Descartes, Paris
| | - Nassim Kamar
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France.,INSERM U1043, IFR-BMT, CHU Purpan, Toulouse, France.,Université Paul Sabatier, Toulouse, France
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16
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Trajectories of glomerular filtration rate and progression to end stage kidney disease after kidney transplantation. Kidney Int 2020; 99:186-197. [PMID: 32781106 DOI: 10.1016/j.kint.2020.07.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/09/2020] [Accepted: 07/02/2020] [Indexed: 12/11/2022]
Abstract
Although the gold standard of monitoring kidney transplant function relies on glomerular filtration rate (GFR), little is known about GFR trajectories after transplantation, their determinants, and their association with outcomes. To evaluate these parameters we examined kidney transplant recipients receiving care at 15 academic centers. Patients underwent prospective monitoring of estimated GFR (eGFR) measurements, with assessment of clinical, functional, histological and immunological parameters. Additional validation took place in seven randomized controlled trials that included a total of 14,132 patients with 403,497 eGFR measurements. After a median follow-up of 6.5 years, 1,688 patients developed end-stage kidney disease. Using unsupervised latent class mixed models, we identified eight distinct eGFR trajectories. Multinomial regression models identified seven significant determinants of eGFR trajectories including donor age, eGFR, proteinuria, and several significant histological features: graft scarring, graft interstitial inflammation and tubulitis, microcirculation inflammation, and circulating anti-HLA donor specific antibodies. The eGFR trajectories were associated with progression to end stage kidney disease. These trajectories, their determinants and respective associations with end stage kidney disease were similar across cohorts, as well as in diverse clinical scenarios, therapeutic eras and in the seven randomized control trials. Thus, our results provide the basis for a trajectory-based assessment of kidney transplant patients for risk stratification and monitoring.
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17
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Monitoring of Donor-specific Anti-HLA Antibodies and Management of Immunosuppression in Kidney Transplant Recipients: An Evidence-based Expert Paper. Transplantation 2020; 104:S1-S12. [DOI: 10.1097/tp.0000000000003270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Rush DN. Subclinical Rejection: a Universally Held Concept? CURRENT TRANSPLANTATION REPORTS 2020. [DOI: 10.1007/s40472-020-00290-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Conversion From Calcineurin Inhibitors to Belatacept in HLA-sensitized Kidney Transplant Recipients With Low-level Donor-specific Antibodies. Transplantation 2020; 103:2150-2156. [PMID: 30720681 DOI: 10.1097/tp.0000000000002592] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Belatacept could be the treatment of choice in renal-transplant recipients with renal dysfunction attributed to calcineurin inhibitor (CNI) nephrotoxicity. Few studies have described its use in patients with donor-specific antibody (DSA). METHODS We retrospectively evaluated conversion from CNIs to belatacept in 29 human leukocyte antigen-immunized renal-transplant recipients. Data about acute rejection, DSA, and renal function were collected. These patients were compared with 42 nonimmunized patients treated with belatacept. RESULTS Patients were converted from CNIs to belatacept a median of 444 days (interquartile range, 85-1200) after transplantation and were followed up after belatacept conversion, for a median of 308 days (interquartile range, 125-511). At conversion, 16 patients had DSA. Nineteen DSA were observed in these 16 patients, of which 11/19 were <1000 mean fluorescence intensity (MFI), 7/19 were between 1000 and 3000 MFI, and one was >3000 MFI. At last follow-up, preexisting DSA had decreased or stabilized. Seven patients still had DSA with a mean MFI of 1298 ± 930 at the last follow-up. No patient developed a de novo DSA in the DSA-positive group. In the nonimmunized group, one patient developed de novo DSA (A24-MFI 970; biopsy for cause did not show biopsy-proven acute rejection or microinflammation score). After belatacept conversion, one antibody-mediated rejection was diagnosed. The mean estimated glomerular filtration rate improved from 31.7 ± 14.2 mL/min/1.73 m to 40.7 ± 12.3 mL/min/1.73 m (P < 0.0001) at 12 months after conversion. We did not find any significant difference between groups in terms of renal function, proteinuria, or biopsy-proven acute rejection. CONCLUSIONS We report on a safe conversion to belatacept in human leukocyte antigen-immunized patients with low DSA levels.
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20
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Abstract
The standardization of renal allograft pathology began in 1991 at the first Banff Conference held in Banff, Alberta, Canada. The first task of transplant pathologists, clinicians, and surgeons was to establish diagnostic criteria for T-cell-mediated rejection (TCMR). The histological threshold for this diagnosis was arbitrarily set at "i2t2": a mononuclear interstitial cell infiltrate present in at least 25% of normal parenchyma and >4 mononuclear cells within the tubular basement membrane of nonatrophic tubules. TCMR was usually found in dysfunctional grafts with an elevation in the serum creatinine; however, our group and others found this extent of inflammation in "routine" or "protocol" biopsies of normally functioning grafts: "subclinical" TCMR. The prevalence of TCMR is higher in the early months posttransplant and has decreased with the increased potency of current immunosuppressive agents. However, the pathogenicity of lesser degrees of inflammation under modern immunosuppression and the relation between ongoing inflammation and development of donor-specific antibody has renewed our interest in subclinical alloreactivity. Finally, the advances in our understanding of pretransplant risk assessment, and our increasing ability to monitor patients less invasively posttransplant, promises to usher in the era of precision medicine.
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Maenaka A, Kenta I, Ota A, Miwa Y, Ohashi W, Horimi K, Matsuoka Y, Ohnishi M, Uchida K, Kobayashi T. Interferon-γ-induced HLA Class II expression on endothelial cells is decreased by inhibition of mTOR and HMG-CoA reductase. FEBS Open Bio 2020; 10:927-936. [PMID: 32237049 PMCID: PMC7193171 DOI: 10.1002/2211-5463.12854] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/10/2020] [Accepted: 03/26/2020] [Indexed: 12/15/2022] Open
Abstract
In organ transplantation, donor‐specific HLA antibody (DSA) is considered a major cause of graft rejection. Because DSA targets primarily donor‐specific human leukocyte antigen (HLA) expressed on graft endothelial cells, the prevention of its expression is a possible strategy for avoiding or salvaging DSA‐mediated graft rejection. We examined the effect of various clinically used drugs on HLA class II expression on endothelial cells. Interferon‐γ (IFN‐γ)‐induced HLA class II DR (HLA‐DR) was downregulated by everolimus (EVR, 49.1% ± 0.8%; P < 0.01) and fluvastatin (FLU, 33.8% ± 0.6%; P < 0.01). Moreover, the combination of EVR and FLU showed a greater suppressive effect on HLA‐DR expression. In contrast, cyclosporine, tacrolimus, mycophenolic acid, and prednisolone did not exhibit any significant suppressive effect. FLU, but not EVR, suppressed mRNA of HLA‐DR. Imaging analysis revealed that HLA‐DR expressed in cytosol or on the cell surface was repressed by EVR (cytosol: 58.6% ± 4.9%, P < 0.01; cell surface: 80.9% ± 4.0%, P < 0.01) and FLU (cytosol: 19.0% ± 3.4%, P < 0.01; cell surface: 48.3% ± 4.8%, P < 0.01). These data indicated that FLU and EVR suppressed IFN‐γ‐induced HLA‐DR expression at the transcriptional and post‐translational level, respectively, suggesting a potential approach for alleviating DSA‐related issues in organ transplantation.
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Affiliation(s)
- Akihiro Maenaka
- Department of Pharmacy, Aichi Medical University School of Medicine, Nagakute, Japan.,Department of Renal Transplant Surgery, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Iwasaki Kenta
- Department of Kidney Disease and Transplant Immunology, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Akinobu Ota
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Yuko Miwa
- Department of Kidney Disease and Transplant Immunology, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Wataru Ohashi
- Division of Biostatistics, Clinical Research Center, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Kosei Horimi
- Department of Renal Transplant Surgery, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Yutaka Matsuoka
- Department of Renal Transplant Surgery, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Masafumi Ohnishi
- Department of Pharmacy, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Kazuharu Uchida
- Department of Kidney Disease and Transplant Immunology, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Takaaki Kobayashi
- Department of Renal Transplant Surgery, Aichi Medical University School of Medicine, Nagakute, Japan
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Long-Term Redistribution of Peripheral Lymphocyte Subpopulations after Switching from Calcineurin to mTOR Inhibitors in Kidney Transplant Recipients. J Clin Med 2020; 9:jcm9041088. [PMID: 32290462 PMCID: PMC7230655 DOI: 10.3390/jcm9041088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 01/04/2023] Open
Abstract
Classical immunosuppression based on steroids, calcineurin inhibitors, and mycophenolate results in several unwanted effects and unsatisfactory long-term outcomes in kidney transplantation (KT). New immunosuppressors search for fewer adverse events and increased graft survival but may have a distinct impact on graft function and immunological biomarkers according to their mechanism of action. This prospective study evaluates the immunological effect of tacrolimus to serine/threonine protein kinase mechanistic target of rapamycin inhibitors (mTORi) conversion in 29 KT recipients compared with 16 controls maintained on tacrolimus. We evaluated renal function, human leukocyte antigen (HLA) antibodies and peripheral blood lymphocyte subsets at inclusion and at 3, 12, and 24 months later. Twenty immunophenotyped healthy subjects served as reference. Renal function remained stable in both groups with no significant change in proteinuria. Two patients in the mTORi group developed HLA donor-specific antibodies and none in the control group (7% vs. 0%, p = 0.53). Both groups showed a progressive increase in regulatory T cells, more prominent in patients converted to mTORi within the first 18 months post-KT (p < 0.001). All patients showed a decrease in naïve B cells (p < 0.001), excepting those converted to mTORi without receiving steroids (p = 0.31). Transitional B cells significantly decreased in mTORi patients (p < 0.001), independently of concomitant steroid treatment. Finally, CD56bright and CD94/NK group 2 member A receptor positive (NKG2A+) Natural Killer (NK) cell subsets increased in mTORi- compared to tacrolimus-treated patients (both p < 0.001). Patients switched to mTORi displayed a significant redistribution of peripheral blood lymphocyte subpopulations proposed to be associated with graft outcomes. The administration of steroids modified some of these changes.
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Hahn D, Hodson EM, Hamiwka LA, Lee VWS, Chapman JR, Craig JC, Webster AC. Target of rapamycin inhibitors (TOR-I; sirolimus and everolimus) for primary immunosuppression in kidney transplant recipients. Cochrane Database Syst Rev 2019; 12:CD004290. [PMID: 31840244 PMCID: PMC6953317 DOI: 10.1002/14651858.cd004290.pub3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Kidney transplantation is the therapy of choice for many patients with end-stage kidney disease (ESKD) with an improvement in survival rates and satisfactory short term graft survival. However, there has been little improvement in long-term survival. The place of target of rapamycin inhibitors (TOR-I) (sirolimus, everolimus), which have different modes of action from other commonly used immunosuppressive agents, in kidney transplantation remains uncertain. This is an update of a review first published in 2006. OBJECTIVES To evaluate the short and long-term benefits and harms of TOR-I (sirolimus and everolimus) when used in primary immunosuppressive regimens for kidney transplant recipients. SEARCH METHODS We searched the Cochrane Kidney and Transplant Register of Studies up to 20 September 2019 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register were identified through searches of CENTRAL, MEDLINE and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA All randomised controlled trials (RCTs) and quasi-RCTs in which drug regimens, containing TOR-I commenced within seven days of transplant, were compared to alternative drug regimens, were included without age restriction, dosage or language of report. DATA COLLECTION AND ANALYSIS Three authors independently assessed study eligibility, risk of bias, and extracted data. Results were reported as risk ratios (RR) with 95% confidence intervals (CI) for dichotomous outcomes and mean difference (MD) with 95% CI for continuous outcomes. Statistical analyses were performed using the random-effects model. The certainty of the evidence was assessed using GRADE MAIN RESULTS: Seventy studies (17,462 randomised participants) were included; eight studies included two comparisons to provide 78 comparisons. Outcomes were reported at six months to three years post transplant. Risk of bias was judged to be low for sequence generation in 25 studies, for allocation concealment in 23 studies, performance bias in four studies, detection bias in 65 studies, attrition bias in 45 studies, selective reporting bias in 48 studies, and for other potential bias in three studies. Risk of bias was judged to be at high risk of bias for sequence generation in two studies, allocation concealment in two studies, performance bias in 61 studies, detection bias in one study, attrition bias in four studies, for selective reporting bias in 11 studies and for other potential risk of bias in 46 studies. Compared with CNI and antimetabolite, TOR-I with antimetabolite probably makes little or no difference to death (RR 1.31, 95% CI 0.87 to 1.98; 19 studies) or malignancies (RR 0.86, 95% CI 0.50 to 1.48; 10 studies); probably increases graft loss censored for death (RR 1.32, 95% CI 0.96 to 1.81; 15 studies), biopsy-proven acute rejection (RR 1.60, 95% CI 1.25 to 2.04; 15 studies), need to change treatment (RR 2.42, 95% CI 1.88 to 3.11; 14 studies) and wound complications (RR 2.56, 95% CI 1.94 to 3.36; 12 studies) (moderate certainty evidence); but reduces CMV infection (RR 0.43, 95% CI 0.29 to 0.63; 13 studies) (high certainty evidence). Compared with antimetabolites and CNI, TOR-I with CNI probably makes little or no difference to death (RR 1.06, 95% CI 0.84 to 1.33; 31 studies), graft loss censored for death (RR 1.09, 95% CI 0.82 to 1.45; 26 studies), biopsy-proven acute rejection (RR 0.95, 95% CI 0.81 to 1.12; 24 studies); and malignancies (RR 0.83, 95% CI 0.64 to 1.07; 17 studies); probably increases the need to change treatment (RR 1.56, 95% CI 1.28 to 1.90; 25 studies), and wound complications (RR 1.56, 95% CI 1.28 to 1.91; 17 studies); but probably reduces CMV infection (RR 0.44, 95% CI 0.34 to 0.58; 25 studies) (moderate certainty evidence). Lower dose TOR-I and standard dose CNI compared with higher dose TOR-I and reduced dose CNI probably makes little or no difference to death (RR 1.07, 95% CI 0.64 to 1.78; 9 studies), graft loss censored for death (RR 1.09, 95% CI 0.54 to 2.20; 8 studies), biopsy-proven acute rejection (RR 0.87, 95% CI 0.67 to 1.13; 8 studies), and CMV infection (RR 1.42, 95% CI 0.78 to 2.60; 5 studies) (moderate certainty evidence); and may make little or no difference to wound complications (RR 0.95, 95% CI 0.53 to 1.71; 3 studies), malignancies (RR 1.04, 95% CI 0.36 to 3.04; 7 studies), and the need to change treatments (RR 1.18, 95% CI 0.58 to 2.42; 5 studies) (low certainty evidence). Lower dose of TOR-I compared with higher doses probably makes little or no difference to death (RR 0.84, 95% CI 0.67 to 1.06; 13 studies), graft loss censored for death (RR 0.92, 95% CI 0.71 to 1.19; 12 studies), biopsy-proven acute rejection (RR 1.26, 95% CI 1.10 to 1.43; 11 studies), CMV infection (RR 0.87, 95% CI 0.63 to 1.21; 9 studies), wound complications (RR 0.92, 95% CI 0.66 to 1.29; 7 studies), and malignancy (RR 0.84, 95% CI 0.54 to 1.32; 10 studies) (moderate certainty evidence); and may make little or no difference to the need to change treatments (RR 0.91, 95% CI 0.78 to 1.05; 10 studies) (low certainty evidence). It is uncertain whether sirolimus and everolimus differ in their effects on kidney function and lipid levels because the certainty of the evidence is very low based on a single small study with only three months of follow-up. AUTHORS' CONCLUSIONS In studies with follow-up to three years, TOR-I with an antimetabolite increases the risk of graft loss and acute rejection compared with CNI and an antimetabolite. TOR-I with CNI potentially offers an alternative to an antimetabolite with CNI as rates of graft loss and acute rejection are similar between interventions and TOR-I regimens are associated with a reduced risk of CMV infections. Wound complications and the need to change immunosuppressive medications are higher with TOR-I regimens. While further new studies are not required, longer-term follow-up data from participants in existing methodologically robust RCTs are needed to determine how useful immunosuppressive regimens, which include TOR-I, are in maintaining kidney transplant function and survival beyond three years.
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Affiliation(s)
- Deirdre Hahn
- The Children's Hospital at WestmeadDepartment of NephrologyLocked Bag 4001WestmeadNSWAustralia2145
| | - Elisabeth M Hodson
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchLocked Bag 4001WestmeadNSWAustralia2145
| | - Lorraine A Hamiwka
- University of Calgary/Alberta Children's HospitalDepartment of Medicine/Pediatrics2888 Shaganappi Trail NW Children's HospitalCalgaryAlbertaCanadaT3B 6A8
| | - Vincent WS Lee
- Westmead & Blacktown HospitalsDepartment of Renal MedicineDarcy RdWestmeadNSWAustralia2145
- The University of Sydney at WestmeadCentre for Transplant and Renal Research, Westmead Millennium InstituteWestmeadAustralia
| | - Jeremy R Chapman
- Westmead Millennium Institute, The University of Sydney at WestmeadCentre for Transplant and Renal ResearchDarcy RdWestmeadNSWAustralia2145
| | - Jonathan C Craig
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchLocked Bag 4001WestmeadNSWAustralia2145
- Flinders UniversityCollege of Medicine and Public HealthAdelaideSAAustralia5001
| | - Angela C Webster
- The University of Sydney at WestmeadCentre for Transplant and Renal Research, Westmead Millennium InstituteWestmeadAustralia
- The University of SydneySydney School of Public HealthEdward Ford Building A27SydneyNSWAustralia2006
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24
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Mendoza Rojas A, Hesselink DA, van Besouw NM, Baan CC, van Gelder T. Impact of low tacrolimus exposure and high tacrolimus intra-patient variability on the development of de novo anti-HLA donor-specific antibodies in kidney transplant recipients. Expert Rev Clin Immunol 2019; 15:1323-1331. [PMID: 31721605 DOI: 10.1080/1744666x.2020.1693263] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Introduction: De novo donor-specific antibodies (dnDSA) directed against HLA are a major contributing factor to the chronic deterioration of renal allograft function. Several factors, including the degree of HLA matching, younger recipient age, and past sensitization events have been shown to increase the risk for the development of dnDSA. The development of dnDSA is also strongly associated with modifications in the immunosuppressive regimen, non-adherence, and under-immunosuppression.Areas covered: Tacrolimus is widely used after solid organ transplantation (SOT) and in recent years, both a high intra-patient variability in tacrolimus exposure and low tacrolimus exposure have been found to be associated with a higher risk of dnDSA development in kidney transplant recipients. This article provides an overview of current findings published in the recent 5 years regarding the relationship between tacrolimus exposure and variation therein and the development of dnDSA.Expert opinion: In this review, we describe how combining data on tacrolimus intra-patient variability and mean pre-dose concentration may be an effective tool to identify kidney transplant recipients who are at higher risk of developing dnDSA.
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Affiliation(s)
- Aleixandra Mendoza Rojas
- Department of Internal Medicine, Nephrology & Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Dennis A Hesselink
- Department of Internal Medicine, Nephrology & Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Nicole M van Besouw
- Department of Internal Medicine, Nephrology & Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Carla C Baan
- Department of Internal Medicine, Nephrology & Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Teun van Gelder
- Department of Internal Medicine, Nephrology & Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands.,Department of Hospital Pharmacy, Clinical Pharmacology Unit, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
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25
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Loupy A, Aubert O, Orandi BJ, Naesens M, Bouatou Y, Raynaud M, Divard G, Jackson AM, Viglietti D, Giral M, Kamar N, Thaunat O, Morelon E, Delahousse M, Kuypers D, Hertig A, Rondeau E, Bailly E, Eskandary F, Böhmig G, Gupta G, Glotz D, Legendre C, Montgomery RA, Stegall MD, Empana JP, Jouven X, Segev DL, Lefaucheur C. Prediction system for risk of allograft loss in patients receiving kidney transplants: international derivation and validation study. BMJ 2019; 366:l4923. [PMID: 31530561 PMCID: PMC6746192 DOI: 10.1136/bmj.l4923] [Citation(s) in RCA: 184] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To develop and validate an integrative system to predict long term kidney allograft failure. DESIGN International cohort study. SETTING Three cohorts including kidney transplant recipients from 10 academic medical centres from Europe and the United States. PARTICIPANTS Derivation cohort: 4000 consecutive kidney recipients prospectively recruited in four French centres between 2005 and 2014. Validation cohorts: 2129 kidney recipients from three centres in Europe and 1428 from three centres in North America, recruited between 2002 and 2014. Additional validation in three randomised controlled trials (NCT01079143, EudraCT 2007-003213-13, and NCT01873157). MAIN OUTCOME MEASURE Allograft failure (return to dialysis or pre-emptive retransplantation). 32 candidate prognostic factors for kidney allograft survival were assessed. RESULTS Among the 7557 kidney transplant recipients included, 1067 (14.1%) allografts failed after a median post-transplant follow-up time of 7.12 (interquartile range 3.51-8.77) years. In the derivation cohort, eight functional, histological, and immunological prognostic factors were independently associated with allograft failure and were then combined into a risk prediction score (iBox). This score showed accurate calibration and discrimination (C index 0.81, 95% confidence interval 0.79 to 0.83). The performance of the iBox was also confirmed in the validation cohorts from Europe (C index 0.81, 0.78 to 0.84) and the US (0.80, 0.76 to 0.84). The iBox system showed accuracy when assessed at different times of evaluation post-transplant, was validated in different clinical scenarios including type of immunosuppressive regimen used and response to rejection therapy, and outperformed previous risk prediction scores as well as a risk score based solely on functional parameters including estimated glomerular filtration rate and proteinuria. Finally, the accuracy of the iBox risk score in predicting long term allograft loss was confirmed in the three randomised controlled trials. CONCLUSION An integrative, accurate, and readily implementable risk prediction score for kidney allograft failure has been developed, which shows generalisability across centres worldwide and common clinical scenarios. The iBox risk prediction score may help to guide monitoring of patients and further improve the design and development of a valid and early surrogate endpoint for clinical trials. TRIAL REGISTRATION Clinicaltrials.gov NCT03474003.
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Affiliation(s)
- Alexandre Loupy
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Olivier Aubert
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Babak J Orandi
- Department of Surgery, University of California San Francisco School of Medicine, San Francisco, CA, USA
| | - Maarten Naesens
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Yassine Bouatou
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
| | - Marc Raynaud
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
| | - Gillian Divard
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
| | - Annette M Jackson
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Denis Viglietti
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Magali Giral
- Department of Nephrology, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Nassim Kamar
- Université Paul Sabatier, INSERM, Department of Nephrology and Organ Transplantation, CHU Rangueil & Purpan, Toulouse, France
| | - Olivier Thaunat
- Department of Transplantation, Nephrology and Clinical Immunology, Hospices Civils de Lyon, France
| | - Emmanuel Morelon
- Department of Transplantation, Nephrology and Clinical Immunology, Hospices Civils de Lyon, France
| | - Michel Delahousse
- Department of Transplantation, Nephrology and Clinical Immunology, Foch Hospital, Suresnes, France
| | - Dirk Kuypers
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Alexandre Hertig
- Kidney transplant department, Tenon Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Eric Rondeau
- Kidney transplant department, Tenon Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Elodie Bailly
- Kidney transplant department, Tenon Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Farsad Eskandary
- Division of Nephrology and Dialysis, Department of Medicine III, General Hospital Vienna, Vienna, Austria
| | - Georg Böhmig
- Division of Nephrology and Dialysis, Department of Medicine III, General Hospital Vienna, Vienna, Austria
| | - Gaurav Gupta
- Division of Nephrology, Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Denis Glotz
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Christophe Legendre
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | | | - Mark D Stegall
- William J. von Liebig Centre for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, USA
| | - Jean-Philippe Empana
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Cardiology and Heart Transplant department, Pompidou hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Xavier Jouven
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
| | - Dorry L Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Carmen Lefaucheur
- Université de Paris, INSERM, Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
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26
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Conversion to Belatacept in Maintenance Kidney Transplant Patients: A Retrospective Multicenter European Study. Transplantation 2019; 102:1545-1552. [PMID: 29570163 DOI: 10.1097/tp.0000000000002192] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The use of belatacept is not yet approved for maintenance in kidney transplant patients. This retrospective multicenter European study aimed to assess the efficacy and safety of conversion to belatacept in a large cohort of patients in a real-life setting and to identify the predictive factors for improved kidney function after the switch. METHODS Two hundred nineteen maintenance kidney transplant patients from 5 European kidney transplant centers were converted to belatacept at 21.2 months (0.1-337.1 months) posttransplantation, mainly because of impaired kidney function. Thirty-two patients were converted to belatacept within the first 3 months posttransplantation. The mean duration of follow-up was 21.9 ± 20.2 months. RESULTS The actuarial rate of patients still on belatacept-based therapy was 77.6%. Mean estimated glomerular filtration rate increased from 32 ± 16.4 at baseline to 38 ± 20 mL/min per 1.73 m (P < 0.0001) at last follow-up. Conversion to belatacept before 3 months posttransplantation was the main predictive factor for a significant increase in estimated glomerular filtration rate (of 5 and 10 mL/min per 1.73 m at 3 and 12 months after the switch, respectively). Eighteen patients (8.2%) presented with an acute rejection episode after conversion; 3 developed a donor-specific antibody. Overall efficacy and safety were good, including for the 35 patients that had a donor-specific antibody at conversion. CONCLUSIONS The conversion to belatacept was effective, especially when performed early after transplantation.
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27
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Snanoudj R, Kamar N, Cassuto E, Caillard S, Metzger M, Merville P, Thierry A, Jollet I, Grimbert P, Anglicheau D, Hazzan M, Choukroun G, Hurault De Ligny B, Janbon B, Vuiblet V, Devys A, Le Meur Y, Delahousse M, Morelon E, Bailly E, Girerd S, Amokrane K, Legendre C, Hertig A, Rondeau E, Taupin JL. Epitope load identifies kidney transplant recipients at risk of allosensitization following minimization of immunosuppression. Kidney Int 2019; 95:1471-1485. [PMID: 30955869 DOI: 10.1016/j.kint.2018.12.029] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 12/07/2018] [Accepted: 12/28/2018] [Indexed: 12/01/2022]
Abstract
Human leukocyte antigen (HLA) mismatching and minimization of immunosuppression are two major risk factors for the development of de novo donor-specific antibodies, which are associated with reduced kidney graft survival. Antibodies do not recognize whole HLA antigens but rather individual epitopes, which are short sequences of amino acids in accessible positions. However, compatibility is still assessed by the simple count of mismatched HLA antigens. We hypothesized that the number of mismatched epitopes, or ("epitope load") would identify patients at the highest risk of developing donor specific antibodies following minimization of immunosuppression. We determined epitope load in 89 clinical trial participants who converted from cyclosporine to everolimus 3 months after kidney transplantation. Twenty-nine participants (32.6%) developed de novo donor specific antibodies. Compared to the number of HLA mismatches, epitope load was more strongly associated with the development of donor specific antibodies. Participants with an epitope load greater than 27 had a 12-fold relative risk of developing donor-specific antibodies compared to those with an epitope load below that threshold. Using that threshold, epitope load would have missed only one participant who subsequently developed donor specific antibodies, compared to 8 missed cases based on a 6-antigen mismatch. DQ7 was the most frequent antigenic target of donor specific antibodies in our population, and some DQ7 epitopes appeared to be more frequently involved than others. Assessing epitope load before minimizing immunosuppression may be a more efficient tool to identify patients at the highest risk of allosensitization.
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Affiliation(s)
- Renaud Snanoudj
- Service de Néphrologie, Hémodialyse et Transplantation Rénale, Hôpital Foch, Suresnes, France; CESP, INSERM, Université Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France.
| | - Nassim Kamar
- Service de Néphrologie et Transplantation d'organe, CHU Rangueil, Toulouse, France
| | | | - Sophie Caillard
- Service de Néphrologie et Transplantation, CHU de Strasbourg, Strasbourg, France
| | - Marie Metzger
- CESP, INSERM, Université Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France
| | - Pierre Merville
- Service de Néphrologie et Transplantation, Hôpital Pellegrin, Bordeaux, France
| | - Antoine Thierry
- Service de Néphrologie et Transplantation, CHU de Poitiers, Poitiers, France
| | | | - Philippe Grimbert
- Service de Néphrologie et Transplantation, Hôpital Henri Mondor, Créteil, France
| | - Dany Anglicheau
- Service de Transplantation et Néphrologie, Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Marc Hazzan
- Service de Néphrologie, Hôpital Claude Huriez, CHRU de Lille, Lille, France
| | | | | | - Bénedicte Janbon
- Service de Néphrologie et Transplantation, CHU de Grenoble, Grenoble, France
| | - Vincent Vuiblet
- Service de Néphrologie, Hôpital Maison Blanche, Reims, France
| | - Anne Devys
- Etablissement français du sang - Centre Pays de Loire, Angers, France
| | - Yann Le Meur
- Service de Néphrologie, CHU de Brest, Brest, France
| | - Michel Delahousse
- Service de Néphrologie, Hémodialyse et Transplantation Rénale, Hôpital Foch, Suresnes, France
| | - Emmanuel Morelon
- Service de Transplantation, Néphrologie et Immunologie Clinique, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Elodie Bailly
- Service de Néphrologie, Hôpital Bretonneau, CHU de Tours, Tours, France
| | - Sophie Girerd
- Service de Néphrologie, CHU Nancy Brabois, Nancy, France
| | - Kahina Amokrane
- Laboratoire d'Immunologie et Histocompatibilité Hôpital Saint-Louis, Paris, France; INSERM UMRs 1160, Institut Universitaire d'Hématologie, Université Paris Diderot, Paris, France
| | - Christophe Legendre
- Service de Transplantation et Néphrologie, Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Alexandre Hertig
- Service de Néphrologie et Transplantation, Hôpital Tenon, Paris, France
| | - Eric Rondeau
- Service de Néphrologie et Transplantation, Hôpital Tenon, Paris, France
| | - Jean-Luc Taupin
- Laboratoire d'Immunologie et Histocompatibilité Hôpital Saint-Louis, Paris, France; INSERM UMRs 1160, Institut Universitaire d'Hématologie, Université Paris Diderot, Paris, France
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28
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Hage V, Ferrandiz I, Béllière J, Esposito L, Hebral AL, Cointault O, Del Bello A, Kamar N. Incidence of Donor-Specific Anti-HLA Antibodies in Non-HLA-Sensitized Patients Given Tacrolimus Once or Twice Daily During the First 2 Years After Kidney Transplant. EXP CLIN TRANSPLANT 2019; 17:313-319. [PMID: 30602364 DOI: 10.6002/ect.2018.0043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Antibody-mediated rejection is a main cause of long-term kidney allograft loss. Nonad-herence and tacrolimus intrapatient variability have been identified as risk factors for developing de novo donor-specific antibodies. Tacrolimus, given once daily, can improve adherence and reduce variabilities among patients. The aim of this retrospective observational study was to compare the incidences of donor-specific antibodies at 2 years posttransplant in de novo kidney transplant recipients given tacrolimus either once or twice daily. MATERIALS AND METHODS Non-HLA sensitized de novo kidney-transplant recipients given tacrolimus either once daily (n = 82) or twice daily (n = 168), combined with mycophenolic acid with or without steroids, were included in the study. All patients were screened for anti-HLA antibodies before transplant, at 6, 12, and 24 months posttransplant, and each time the patient presented with impaired kidney function. RESULTS The 2-year incidence of donor-specific antibodies was 2.8%. During the follow-up period, 6 patients (3.6%) receiving tacrolimus twice daily and one patient (1.2%) receiving tacrolimus once daily developed a donor-specific antibody (P = .43). The incidence of antibody-mediated rejection was 4.8% under tacrolimus once daily and 2.7% under tacrolimus twice daily (P = .5). Tacrolimus intrapatient variability was similar with both formulations and was not associated with development of donor-specific antibodies. CONCLUSIONS The use of tacrolimus-based immunosup-pression associated with mycophenolic acid was associated with a low risk of de novo donor-specific antibodies. After 2 years, the incidence of de novo donor-specific antibodies did not differ significantly between patients treated with tacrolimus once daily versus those treated with the twice-daily formulation.
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Affiliation(s)
- Valérie Hage
- From the Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France
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29
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Eisenberger U, Budde K, Lehner F, Sommerer C, Reinke P, Witzke O, Wüthrich RP, Stahl R, Heller K, Suwelack B, Mühlfeld A, Hauser IA, Nadalin S, Porstner M, Arns W. Histological findings to five years after early conversion of kidney transplant patients from cyclosporine to everolimus: an analysis from the randomized ZEUS study. BMC Nephrol 2018; 19:154. [PMID: 29954336 PMCID: PMC6025714 DOI: 10.1186/s12882-018-0950-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 06/17/2018] [Indexed: 01/05/2023] Open
Abstract
Background Conversion from calcineurin inhibitor (CNI) therapy to everolimus within 6 months after kidney transplantation improves long-term graft function but can increase the risk of mild biopsy-proven acute cellular rejection (BPAR). We performed a post-hoc analysis of histological data from a randomized trial in order to further analyze histologic information obtained from indication and protocol biopsies up to 5 years after transplantation. Methods Biopsy samples obtained up to 5 years post-transplant were analyzed from the randomized ZEUS study, in which kidney transplant patients were randomized at month 4.5 to switch to everolimus (n = 154) or remain on cyclosporine (CsA)-based immunosuppression (n = 146). All patients received mycophenolate and steroids. Results At least one investigator-initiated biopsy was undertaken in 53 patients in each group between randomization and year 5, with a mean (SD) of 2.6 (1.7) and 2.2 (1.4) biopsies per patient in the everolimus and CsA groups, respectively. In the everolimus and CsA groups, investigator-initiated biopsies showed (i) BPAR in 12.3 and 7.5% (p = 0.182) of patients, respectively, with episodes graded mild in 22/24 and 18/20 cases (ii) CsA toxicity lesions in 4.5 and 10.3% of patients (p = 0.076) (iii) antibody-mediated rejection in 0.6 and 2.7% of patients (p = 0.204), respectively. Conclusions This analysis of histological findings in the ZEUS study to 5 years after kidney transplantation shows no increase in antibody-mediated rejection under everolimus-based therapy with a lower rate of CNI-related toxicity compared to a conventional CsA-based regimen, and confirms the preponderance of mild BPAR seen in the main study after the early switch to CsA-free everolimus therapy. Trial registration ClinicalTrials.gov NCT00154310. Date of registration: September 12, 2005. Electronic supplementary material The online version of this article (10.1186/s12882-018-0950-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ute Eisenberger
- Department of Nephrology and Hypertension, University of Bern, Inselspital, Bern, Switzerland. .,Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr, 55, 45147, Essen, Germany.
| | - Klemens Budde
- Department of Nephrology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Frank Lehner
- Department of General, Visceral and Transplantation Surgery, Hannover Medical School, Hannover, Germany
| | - Claudia Sommerer
- Department of Nephrology, University Hospital Heidelberg, Heidelberg, Germany
| | - Petra Reinke
- Department of Nephrology and Intensive Care, Charité Campus Virchow, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Oliver Witzke
- Department of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | | | - Rolf Stahl
- Division of Nephrology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Katharina Heller
- Department of Nephrology and Hypertension, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Barbara Suwelack
- Department of Internal Medicine - Transplant Nephrology, University Hospital of Münster, Münster, Germany
| | - Anja Mühlfeld
- Division of Nephrology and Immunology, University Hospital RWTH Aachen, Aachen, Germany
| | - Ingeborg A Hauser
- Med. Klinik III, Department of Nephrology, UKF, Goethe University, Frankfurt, Germany
| | - Silvio Nadalin
- Department of General, Visceral and Transplant Surgery, University Hospital Tübingen, Tübingen, Germany
| | | | - Wolfgang Arns
- Department of Nephrology and Transplantation, Cologne Merheim Medical Center, Cologne, Germany
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30
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Perico N, Casiraghi F, Todeschini M, Cortinovis M, Gotti E, Portalupi V, Mister M, Gaspari F, Villa A, Fiori S, Introna M, Longhi E, Remuzzi G. Long-Term Clinical and Immunological Profile of Kidney Transplant Patients Given Mesenchymal Stromal Cell Immunotherapy. Front Immunol 2018; 9:1359. [PMID: 29963053 PMCID: PMC6014158 DOI: 10.3389/fimmu.2018.01359] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 05/31/2018] [Indexed: 12/11/2022] Open
Abstract
We report here the long-term clinical and immunological results of four living-donor kidney transplant patients given autologous bone marrow-derived mesenchymal stromal cells (MSCs) as part of a phase 1 study focused on the safety and feasibility of this cell therapy. According to study protocols implemented over time, based on initial early safety findings, the patients were given MSC at day 7 posttransplant (n = 2) or at day −1 pretransplant (n = 2) and received induction therapy with basiliximab and low-dose rabbit anti-thymocyte globulin (RATG) or RATG alone, and were maintained on low-dose ciclosporin (CsA)/mycophenolate mofetil (MMF). All MSC-treated patients had stable graft function during the 5- to 7-year follow-up, without increased susceptibility to infections or neoplasm. In three MSC recipients, but not historical control patients, circulating memory CD8+ T cell percentages remained lower than basal, coupled with persistent reduction of ex vivo donor-specific cytotoxicity. Two patients showed a long-lasting increase in the regulatory T cell/memory CD8+ T cell ratio, paralleled by high circulating levels of naïve and transitional B cells. In one of these two patients, CsA was successfully discontinued, and currently the low-dose MMF monotherapy is on the tapering phase. The study shows that MSC therapy is safe in the long term and could promote a pro-tolerogenic environment in selected patients. Extensive immunomonitoring of MSC-treated kidney transplant recipients could help selection of patients for safe withdrawal of maintenance immunosuppressive drugs (NCT00752479 and NCT02012153).
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Affiliation(s)
- Norberto Perico
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | | | - Marta Todeschini
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | - Monica Cortinovis
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | - Eliana Gotti
- Unit of Nephrology and Dialysis, Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Valentina Portalupi
- Unit of Nephrology and Dialysis, Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Marilena Mister
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | - Flavio Gaspari
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | - Alessandro Villa
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | - Sonia Fiori
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | - Martino Introna
- G. Lanzani Laboratory of Cell Therapy, Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Elena Longhi
- Laboratory of Transplant Immunology, UOC Coordinamento Trapianti IRCCS Fondazione Ca' Granda - Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Giuseppe Remuzzi
- IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy.,Unit of Nephrology and Dialysis, Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy.,L. Sacco Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
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31
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Grimbert P, Thaunat O. mTOR inhibitors and risk of chronic antibody-mediated rejection after kidney transplantation: where are we now? Transpl Int 2018; 30:647-657. [PMID: 28445619 DOI: 10.1111/tri.12975] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/13/2017] [Accepted: 04/21/2017] [Indexed: 12/28/2022]
Abstract
Antibody-mediated rejection (AMR) usually starts with generation of donor-specific anti-HLA antibodies (DSAs), arising from a B-cell response to antigen recognition. In vitro and preclinical data demonstrate that mammalian target of rapamycin (mTOR) inhibition attenuates the mTOR-mediated intracellular signaling pathway involved in AMR-related kidney damage. The limited available data from immunological studies in kidney transplant patients, however, have not shown such effects in vivo. In terms of clinical immunosuppression, the overriding influence on rates of de novo DSA (dnDSA) or AMR-regardless of the type of regimen-is patient adherence. To date, limited data from patients given mTOR inhibitor therapy with adequate concurrent immunosuppression, such as reduced-exposure calcineurin inhibitor (CNI) therapy, have not shown an adverse effect on the risk of dnDSA or AMR. Early switch to an mTOR inhibitor (<6-12 months post-transplant) in a CNI-free regimen, in contrast, can increase the risk of dnDSA, especially if adjunctive therapy is inadequate. Late conversion to CNI-free therapy with mTOR inhibition does not appear to affect the risk of dnDSA. More data, from prospective studies, are required to fully understand that association between use of mTOR inhibitors with different types of concomitant therapy and risk of dnDSA and AMR.
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Affiliation(s)
- Philippe Grimbert
- Unité INSERM 955 CHU Henri Mondor, Service de Néphrologie et Transplantation, Pôle Cancérologie-Immunité-Transplantation-Infectiologie (CITI), Université Paris-Est (UPEC), Paris, France.,Service de Transplantation, Néphrologie et Immunologie Clinique, INSERM U1111, Hospices Civils de Lyon, Hôpital Edouard Herriot, Université Lyon-I, Lyon, France
| | - Olivier Thaunat
- Unité INSERM 955 CHU Henri Mondor, Service de Néphrologie et Transplantation, Pôle Cancérologie-Immunité-Transplantation-Infectiologie (CITI), Université Paris-Est (UPEC), Paris, France.,Service de Transplantation, Néphrologie et Immunologie Clinique, INSERM U1111, Hospices Civils de Lyon, Hôpital Edouard Herriot, Université Lyon-I, Lyon, France
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32
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Jouve T, Noble J, Rostaing L, Malvezzi P. Tailoring tacrolimus therapy in kidney transplantation. Expert Rev Clin Pharmacol 2018; 11:581-588. [PMID: 29779413 DOI: 10.1080/17512433.2018.1479638] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION The prevalence of end-stage renal disease is increasing worldwide. The best treatment is kidney transplantation, although life-long immunosuppressive therapy is then mandatory. Currently, the cornerstone immunosuppressive therapy relies on tacrolimus (Tac), a calcineurin inhibitor that is nephrotoxic but whose exposition can be minimized in a delicate balance. Area covered: We addressed whether, in the setting of kidney transplantation, Tac-based therapy can be tailored to medical needs: to achieve this, we searched for suitable articles in PubMed. Expert commentary: Too over-minimization of Tac, when associated with mycophenolic acid (MPA), may cause the development of de novo donor-specific alloantibodies (DSA). However, Tac minimization, in the context of everolimus-associated therapy instead of MPA, does not increase DSA formation as demonstrated in the TRANSFORM study and, in addition, can prevent cytomegalovirus (CMV) infection/reactivation. Nonetheless, Tac therapy, regardless of its formulation (immediate or extended release) compared to cyclosporine A, increases the risk of posttransplant diabetes mellitus; this increase is not affected by steroid therapy. Tac-based immunosuppression remains the best immunosuppressive therapy in kidney-transplant recipients and can be tailored according to patients' need.
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Affiliation(s)
- Thomas Jouve
- a Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation , Centre Hospitalier Universitaire (CHU) Grenoble-Alpes , Grenoble , France.,b Health Department , Grenoble Alpes University , Grenoble , France
| | - Johan Noble
- a Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation , Centre Hospitalier Universitaire (CHU) Grenoble-Alpes , Grenoble , France.,b Health Department , Grenoble Alpes University , Grenoble , France
| | - Lionel Rostaing
- a Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation , Centre Hospitalier Universitaire (CHU) Grenoble-Alpes , Grenoble , France.,b Health Department , Grenoble Alpes University , Grenoble , France
| | - Paolo Malvezzi
- a Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation , Centre Hospitalier Universitaire (CHU) Grenoble-Alpes , Grenoble , France
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Mathew JM, H-Voss J, LeFever A, Konieczna I, Stratton C, He J, Huang X, Gallon L, Skaro A, Ansari MJ, Leventhal JR. A Phase I Clinical Trial with Ex Vivo Expanded Recipient Regulatory T cells in Living Donor Kidney Transplants. Sci Rep 2018; 8:7428. [PMID: 29743501 PMCID: PMC5943280 DOI: 10.1038/s41598-018-25574-7] [Citation(s) in RCA: 160] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 04/24/2018] [Indexed: 01/12/2023] Open
Abstract
There is considerable interest in therapeutic transfer of regulatory T cells (Tregs) for controlling aberrant immune responses. Initial clinical trials have shown the safety of Tregs in hematopoietic stem cell transplant recipients and subjects with juvenile diabetes. Our hypothesis is that infusion(s) of Tregs may induce transplant tolerance thus avoiding long-term use of toxic immunosuppressive agents that cause increased morbidity/mortality. Towards testing our hypothesis, we conducted a phase I dose escalation safety trial infusing billions of ex vivo expanded recipient polyclonal Tregs into living donor kidney transplant recipients. Despite variability in recipient’s renal disease, our expansion protocol produced Tregs which met all release criteria, expressing >98% CD4+CD25+ with <1% CD8+ and CD19+ contamination. Our product displayed >80% FOXP3 expression with stable demethylation in the FOXP3 promoter. Functionally, expanded Tregs potently suppressed allogeneic responses and induced the generation of new Tregs in the recipient’s allo-responders in vitro. Within recipients, expanded Tregs amplified circulating Treg levels in a sustained manner. Clinically, all doses of Treg therapy tested were safe with no adverse infusion related side effects, infections or rejection events up to two years post-transplant. This study provides the necessary safety data to advance Treg cell therapy to phase II efficacy trials.
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Affiliation(s)
- James M Mathew
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA. .,Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
| | - Jessica H-Voss
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Ann LeFever
- Mathews Center for Cellular Therapy, Northwestern Memorial Hospital, Chicago, IL, 60611, USA
| | - Iwona Konieczna
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Cheryl Stratton
- Mathews Center for Cellular Therapy, Northwestern Memorial Hospital, Chicago, IL, 60611, USA
| | - Jie He
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Xuemei Huang
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Lorenzo Gallon
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.,Department of Medicine, Division of Nephrology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Anton Skaro
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Mohammed Javeed Ansari
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.,Department of Medicine, Division of Nephrology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Joseph R Leventhal
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA. .,TRACT Therapeutics, Inc; 125W. Oak Street; Suite D, Chicago, IL, 60610, USA.
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Zhao C, Xu Z, Wang Z, Suo C, Tao J, Han Z, Gu M, Tan R. Role of tumor necrosis factor-α in epithelial-to-mesenchymal transition in transplanted kidney cells in recipients with chronic allograft dysfunction. Gene 2017; 642:483-490. [PMID: 29174387 DOI: 10.1016/j.gene.2017.11.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/16/2017] [Accepted: 11/21/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Chronic allograft dysfunction (CAD) is characterized by allograft kidney interstitial fibrosis, the underlying mechanism of which is unclear. Our aim was to elucidate the role and mechanism of TNF-α-induced epithelial-to-mesenchymal transition (EMT) in transplant kidney tubular interstitial fibrosis. METHODS Human kidney tissues from normal volunteers and CAD patients were assessed using periodic acid-Schiff, Masson trichrome and immunohistochemical staining. mRNA and protein expression of E-cadherin, α-smooth muscle actin (SMA) and fibronectin(FN) in renal proximal tubule epithelial (HK-2) cells after treatment with TNF-α under different conditions were assessed using western blot and qRT-PCR analysis. Cell motility and migration were assessed using wound healing and transwell assays. Expression of Smurf2 and TNF-α-signaling pathway-related proteins in HK-2 cells treated with TNF-α was detected by western blotting. E-cadherin and α-SMA expression was also assessed in Smurf2 plasmid-transfected or Smurf2 siRNA-treated HK-2 cells. RESULTS The expression of TNF-α, Smurf2, α-SMA, and fibronectin was significantly upregulated, while the expression of E-cad was downregulated in the CAD group compared with the normal group. The in vitro results showed that TNF-α remarkably upregulated the expression of Smurf2, α-SMA and fibronectin and downregulated the expression of E-cadherin in HK-2 cells and enhanced motility and migration in HK-2 cells. Overexpression of Smurf2 could promote the expression of α-SMA and inhibit the expression of E-cad, whereas knockdown of Smurf2 expression reversed TNF-α-induced upregulation of α-SMA and prohibited the reduction of E-cad expression. Furthermore, TNF-α-induced Smurf2 expression promoted EMT through the Akt signaling pathway. CONCLUSIONS TNF-α induced EMT via the TNF-α/Akt/Smurf2 signaling pathways, and it may play a role in aggravating allograft kidney interstitial fibrosis in CAD patients.
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Affiliation(s)
- Chunchun Zhao
- Department of Urology, Nanjing Medical University First Affiliated Hospital, Nanjing 210029, China
| | - Zhen Xu
- Department of Urology, Taizhou First People's Hospital, Taizhou 225300, China
| | - Zijie Wang
- Department of Urology, Nanjing Medical University First Affiliated Hospital, Nanjing 210029, China
| | - Chuanjian Suo
- Department of Urology, Nanjing Medical University First Affiliated Hospital, Nanjing 210029, China
| | - Jun Tao
- Department of Urology, Nanjing Medical University First Affiliated Hospital, Nanjing 210029, China
| | - Zhijian Han
- Department of Urology, Nanjing Medical University First Affiliated Hospital, Nanjing 210029, China
| | - Min Gu
- Department of Urology, Nanjing Medical University First Affiliated Hospital, Nanjing 210029, China.
| | - Ruoyun Tan
- Department of Urology, Nanjing Medical University First Affiliated Hospital, Nanjing 210029, China.
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35
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Mallat SG, Tanios BY, Itani HS, Lotfi T, McMullan C, Gabardi S, Akl EA, Azzi JR. CMV and BKPyV Infections in Renal Transplant Recipients Receiving an mTOR Inhibitor-Based Regimen Versus a CNI-Based Regimen: A Systematic Review and Meta-Analysis of Randomized, Controlled Trials. Clin J Am Soc Nephrol 2017; 12:1321-1336. [PMID: 28576905 PMCID: PMC5544521 DOI: 10.2215/cjn.13221216] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 04/24/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES The objective of this meta-analysis is to compare the incidences of cytomegalovirus and BK polyoma virus infections in renal transplant recipients receiving a mammalian target of rapamycin inhibitor (mTOR)-based regimen compared with a calcineurin inhibitor-based regimen. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We conducted a comprehensive search for randomized, controlled trials up to January of 2016 addressing our objective. Other outcomes included acute rejection, graft loss, serious adverse events, proteinuria, wound-healing complications, and eGFR. Two review authors selected eligible studies, abstracted data, and assessed risk of bias. We assessed quality of evidence using the Grading of Recommendations Assessment, Development and Evaluation methodology. RESULTS We included 28 randomized, controlled trials with 6211 participants classified into comparison 1: mTOR inhibitor versus calcineurin inhibitor and comparison 2: mTOR inhibitor plus reduced dose of calcineurin inhibitor versus regular dose of calcineurin inhibitor. Results showed decreased incidence of cytomegalovirus infection in mTOR inhibitor-based group in both comparison 1 (risk ratio, 0.54; 95% confidence interval, 0.41 to 0.72), with high quality of evidence, and comparison 2 (risk ratio, 0.43; 95% confidence interval, 0.24 to 0.80), with moderate quality of evidence. The available evidence neither confirmed nor ruled out a reduction of BK polyoma virus infection in mTOR inhibitor-based group in both comparisons. Secondary outcomes revealed more serious adverse events and acute rejections in mTOR inhibitor-based group in comparison 1 and no difference in comparison 2. There was no difference in graft loss in both comparisons. eGFR was higher in the mTOR inhibitor-based group in comparison 1 (mean difference =4.07 ml/min per 1.73 m2; 95% confidence interval, 1.34 to 6.80) and similar to the calcineurin inhibitor-based group in comparison 2. More proteinuria and wound-healing complications occurred in the mTOR inhibitor-based groups. CONCLUSIONS We found moderate- to high-quality evidence of reduced risk of cytomegalovirus infection in renal transplant recipients in the mTOR inhibitor-based compared with the calcineurin inhibitor-based regimen. Our review also suggested that a combination of a mTOR inhibitor and a reduced dose of calcineurin inhibitor may be associated with similar eGFR and rates of acute rejections and serious adverse events compared with a standard calcineurin inhibitor-based regimen at the expense of higher incidence of proteinuria and wound-healing complications.
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Affiliation(s)
| | | | - Houssam S. Itani
- Division of Nephrology, Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon
| | | | - Ciaran McMullan
- Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Steven Gabardi
- Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Elie A. Akl
- Department of Internal Medicine, American University of Beirut, Beirut, Lebanon
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Jamil R. Azzi
- Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts; and
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Karpe KM, Talaulikar GS, Walters GD. Calcineurin inhibitor withdrawal or tapering for kidney transplant recipients. Cochrane Database Syst Rev 2017; 7:CD006750. [PMID: 28730648 PMCID: PMC6483545 DOI: 10.1002/14651858.cd006750.pub2] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Calcineurin inhibitors (CNI) can reduce acute transplant rejection and immediate graft loss but are associated with significant adverse effects such as hypertension and nephrotoxicity which may contribute to chronic rejection. CNI toxicity has led to numerous studies investigating CNI withdrawal and tapering strategies. Despite this, uncertainty remains about minimisation or withdrawal of CNI. OBJECTIVES This review aimed to look at the benefits and harms of CNI tapering or withdrawal in terms of graft function and loss, incidence of acute rejection episodes, treatment-related side effects (hypertension, hyperlipidaemia) and death. SEARCH METHODS We searched the Cochrane Kidney and Transplant Specialised Register to 11 October 2016 through contact with the Information Specialist using search terms relevant to this review. Studies contained in the Specialised Register are identified through search strategies specifically designed for CENTRAL, MEDLINE, and EMBASE; handsearching conference proceedings; and searching the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA All randomised controlled trials (RCTs) where drug regimens containing CNI were compared to alternative drug regimens (CNI withdrawal, tapering or low dose) in the post-transplant period were included, without age or dosage restriction. DATA COLLECTION AND ANALYSIS Two authors independently assessed studies for eligibility, risk of bias, and extracted data. Results were expressed as risk ratio (RR) or mean difference (MD) with 95% confidence intervals (CI). MAIN RESULTS We included 83 studies that involved 16,156 participants. Most were open-label studies; less than 30% of studies reported randomisation method and allocation concealment. Studies were analysed as intent-to-treat in 60% and all pre-specified outcomes were reported in 54 studies. The attrition and reporting bias were unclear in the remainder of the studies as factors used to judge bias were reported inconsistently. We also noted that 50% (47 studies) of studies were funded by the pharmaceutical industry.We classified studies into four groups: CNI withdrawal or avoidance with or without substitution with mammalian target of rapamycin inhibitors (mTOR-I); and low dose CNI with or without mTOR-I. The withdrawal groups were further stratified as avoidance and withdrawal subgroups for major outcomes.CNI withdrawal may lead to rejection (RR 2.54, 95% CI 1.56 to 4.12; moderate certainty evidence), may make little or no difference to death (RR 1.09, 95% CI 0.96 to 1.24; moderate certainty), and probably slightly reduces graft loss (RR 0.85, 95% CI 0.74 to 0.98; low quality evidence). Hypertension was probably reduced in the CNI withdrawal group (RR 0.82, 95% CI 0.71 to 0.95; low certainty), while CNI withdrawal may make little or no difference to malignancy (RR 1.10, 95% CI 0.93 to 1.30; low certainty), and probably makes little or no difference to cytomegalovirus (CMV) (RR 0.87, 95% CI 0.52 to 1.45; low certainty)CNI avoidance may result in increased acute rejection (RR 2.16, 95% CI 0.85 to 5.49; low certainty) but little or no difference in graft loss (RR 0.96, 95% CI 0.79 to 1.16; low certainty). Late CNI withdrawal increased acute rejection (RR 3.21, 95% CI 1.59 to 6.48; moderate certainty) but probably reduced graft loss (RR 0.84, 95% CI 0.72 to 0.97, low certainty).Results were similar when CNI avoidance or withdrawal was combined with the introduction of mTOR-I; acute rejection was probably increased (RR 1.43; 95% CI 1.15 to 1.78; moderate certainty) and there was probably little or no difference in death (RR 0.96; 95% CI 0.69 to 1.36, moderate certainty). mTOR-I substitution may make little or no difference to graft loss (RR 0.94, 95% CI 0.75 to 1.19; low certainty), probably makes little of no difference to hypertension (RR 0.86, 95% CI 0.64 to 1.15; moderate), and probably reduced the risk of cytomegalovirus (CMV) (RR 0.60, 95% CI 0.44 to 0.82; moderate certainty) and malignancy (RR 0.69, 95% CI 0.47 to 1.00; low certainty). Lymphoceles were increased with mTOR-I substitution (RR 1.45, 95% CI 0.95 to 2.21; low certainty).Low dose CNI combined with mTOR-I probably increased glomerular filtration rate (GFR) (MD 6.24 mL/min, 95% CI 3.28 to 9.119; moderate certainty), reduced graft loss (RR 0.75, 95% CI 0.55 to 1.02; moderate certainty), and made little or no difference to acute rejection (RR 1.13 ; 95% CI 0.91 to 1.40; moderate certainty). Hypertension was decreased (RR 0.98, 95% CI 0.80 to 1.20; low certainty) as was CMV (RR 0.41, 95% CI 0.16 to 1.06; low certainty). Low dose CNI plus mTOR-I makes probably makes little of no difference to malignancy (RR 1.22, 95% CI 0.42 to 3.53; low certainty) and may make little of no difference to death (RR 1.16, 95% CI 0.71 to 1.90; moderate certainty). AUTHORS' CONCLUSIONS CNI avoidance increased acute rejection and CNI withdrawal increases acute rejection but reduced graft loss at least over the short-term. Low dose CNI with induction regimens reduced acute rejection and graft loss with no major adverse events, also in the short-term. The use of mTOR-I reduced CMV infections but increased the risk of acute rejection. These conclusions must be tempered by the lack of long-term data in most of the studies, particularly with regards to chronic antibody-mediated rejection, and the suboptimal methodological quality of the included studies.
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Affiliation(s)
- Krishna M Karpe
- Canberra HospitalRenal ServicesYamba DriveGarranACTAustralia2605
- Australian National University Medical SchoolActonACTAustralia2601
| | - Girish S Talaulikar
- Canberra HospitalRenal ServicesYamba DriveGarranACTAustralia2605
- Australian National University Medical SchoolActonACTAustralia2601
| | - Giles D Walters
- Canberra HospitalRenal ServicesYamba DriveGarranACTAustralia2605
- Australian National University Medical SchoolActonACTAustralia2601
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de Fijter JW, Holdaas H, Øyen O, Sanders JS, Sundar S, Bemelman FJ, Sommerer C, Pascual J, Avihingsanon Y, Pongskul C, Oppenheimer F, Toselli L, Russ G, Wang Z, Lopez P, Kochuparampil J, Cruzado JM, van der Giet M. Early Conversion From Calcineurin Inhibitor- to Everolimus-Based Therapy Following Kidney Transplantation: Results of the Randomized ELEVATE Trial. Am J Transplant 2017; 17:1853-1867. [PMID: 28027625 DOI: 10.1111/ajt.14186] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 12/20/2016] [Indexed: 01/25/2023]
Abstract
In a 24-month, multicenter, open-label, randomized trial, 715 de novo kidney transplant recipients were randomized at 10-14 weeks to convert to everolimus (n = 359) or remain on standard calcineurin inhibitor (CNI) therapy (n = 356; 231 tacrolimus; 125 cyclosporine), all with mycophenolic acid and steroids. The primary endpoint, change in estimated glomerular filtration rate (eGFR) from randomization to month 12, was similar for everolimus versus CNI: mean (standard error) 0.3(1.5) mL/min/1.732 versus -1.5(1.5) mL/min/1.732 (p = 0.116). Biopsy-proven acute rejection (BPAR) at month 12 was more frequent under everolimus versus CNI overall (9.7% vs. 4.8%, p = 0.014) and versus tacrolimus-treated patients (2.6%, p < 0.001) but similar to cyclosporine-treated patients (8.8%, p = 0.755). Reporting on de novo donor-specific antibodies (DSA) was limited but suggested more frequent anti-HLA Class I DSA under everolimus. Change in left ventricular mass index was similar. Discontinuation due to adverse events was more frequent with everolimus (23.6%) versus CNI (8.4%). In conclusion, conversion to everolimus at 10-14 weeks posttransplant was associated with renal function similar to that with standard therapy overall. Rates of BPAR were low in all groups, but lower with tacrolimus than everolimus.
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Affiliation(s)
- J W de Fijter
- Department of Nephrology, Leiden University Medical Center, Leiden, the Netherlands
| | - H Holdaas
- Section of Nephrology, Department of Transplant Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - O Øyen
- Section of Transplant Surgery, Department of Transplant Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - J-S Sanders
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - S Sundar
- Department of Nephrology, Columbia Asia Hospitals, Malleshwaram West, Bangalore, India
| | - F J Bemelman
- Department of Nephrology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - C Sommerer
- Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany
| | - J Pascual
- Department of Nephrology, Hospital del Mar, Barcelona, Spain
| | - Y Avihingsanon
- Faculty of Medicine, Chulalongkorn University and Excellent Center of Organ Transplantation, King Chulalongkorn Memorial Hospital, Patumwan, Bangkok, Thailand
| | - C Pongskul
- Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - F Oppenheimer
- Department of Nephrology and Kidney Transplantation, Hospital Clínic de Barcelona, Barcelona, Spain
| | - L Toselli
- Kidney, Liver and Pancreas Transplant Unit, CRAI Norte, Ministry of Health, Buenos Aires, Argentina
| | - G Russ
- University of Adelaide and Central and Northern Adelaide Renal and Transplant Service, Royal Adelaide Hospital, North Terrace, Adelaide, Australia
| | - Z Wang
- Biometrics and Statistical Science, Novartis Pharmaceuticals, East Hanover, NJ
| | - P Lopez
- Research and Development, Novartis Pharma AG, Basel, Switzerland
| | - J Kochuparampil
- Research and Development, Novartis Pharma AG, Basel, Switzerland
| | - J M Cruzado
- Department of Nephrology, University Hospital of Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M van der Giet
- Department of Nephrology, Charité - Universitätsmedizin, Berlin, Germany
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Voon DC, Huang RY, Jackson RA, Thiery JP. The EMT spectrum and therapeutic opportunities. Mol Oncol 2017; 11:878-891. [PMID: 28544151 PMCID: PMC5496500 DOI: 10.1002/1878-0261.12082] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/12/2017] [Accepted: 05/18/2017] [Indexed: 12/18/2022] Open
Abstract
Carcinomas are phenotypically arrayed along an epithelial–mesenchymal transition (EMT) spectrum, a developmental program currently exploited to understand the acquisition of drug resistance through a re‐routing of growth factor signaling. This review collates the current approaches employed in developing therapeutics against cancer‐associated EMT, and provides an assessment of their respective strengths and drawbacks. We reflect on the close relationship between EMT and chemoresistance against current targeted therapeutics, with a special focus on the epigenetic mechanisms that link these processes. This prompts the hypothesis that carcinoma‐associated EMT shares a common epigenetic pathway to cellular plasticity as somatic cell reprogramming during tissue repair and regeneration. Indeed, their striking resemblance suggests that EMT in carcinoma is a pathological adaptation of an intrinsic program of cellular plasticity that is crucial to tissue homeostasis. We thus propose a revised approach that targets the epigenetic mechanisms underlying pathogenic EMT to arrest cellular plasticity regardless of upstream cancer‐driving mutations.
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Affiliation(s)
- Dominic C Voon
- Institute for Frontier Science Initiative, Kanazawa University, Ishikawa, Japan.,Division of Genetics, Cancer Research Institute, Kanazawa University, Ishikawa, Japan
| | - Ruby Y Huang
- Department of Obstetrics & Gynaecology, National University Hospital, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Rebecca A Jackson
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jean P Thiery
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Inserm Unit 1186 Comprehensive Cancer Center, Institut Gustave Roussy, Villejuif, France.,CNRS UMR 7057 Matter and Complex Systems, University Paris Denis Diderot, Paris, France
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39
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Practical Recommendations for Long-term Management of Modifiable Risks in Kidney and Liver Transplant Recipients: A Guidance Report and Clinical Checklist by the Consensus on Managing Modifiable Risk in Transplantation (COMMIT) Group. Transplantation 2017; 101:S1-S56. [PMID: 28328734 DOI: 10.1097/tp.0000000000001651] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Short-term patient and graft outcomes continue to improve after kidney and liver transplantation, with 1-year survival rates over 80%; however, improving longer-term outcomes remains a challenge. Improving the function of grafts and health of recipients would not only enhance quality and length of life, but would also reduce the need for retransplantation, and thus increase the number of organs available for transplant. The clinical transplant community needs to identify and manage those patient modifiable factors, to decrease the risk of graft failure, and improve longer-term outcomes.COMMIT was formed in 2015 and is composed of 20 leading kidney and liver transplant specialists from 9 countries across Europe. The group's remit is to provide expert guidance for the long-term management of kidney and liver transplant patients, with the aim of improving outcomes by minimizing modifiable risks associated with poor graft and patient survival posttransplant.The objective of this supplement is to provide specific, practical recommendations, through the discussion of current evidence and best practice, for the management of modifiable risks in those kidney and liver transplant patients who have survived the first postoperative year. In addition, the provision of a checklist increases the clinical utility and accessibility of these recommendations, by offering a systematic and efficient way to implement screening and monitoring of modifiable risks in the clinical setting.
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40
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Liu J, Liu D, Li J, Zhu L, Zhang C, Lei K, Xu Q, You R. Efficacy and Safety of Everolimus for Maintenance Immunosuppression of Kidney Transplantation: A Meta-Analysis of Randomized Controlled Trials. PLoS One 2017; 12:e0170246. [PMID: 28107397 PMCID: PMC5249216 DOI: 10.1371/journal.pone.0170246] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 12/30/2016] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Conversion to everolimus is often used in kidney transplantation to overcome calcineurin inhibitor (CNI) nephrotoxicity but there is conflicting evidence for this approach. OBJECTIVES To investigate the benefits and harm from randomized clinical trials (RCTs) involving the conversion from CNI to everolimus after kidney transplantation. METHODS Databases were searched up to March 2016. Two reviewers independently assessed trials for eligibility and quality, and extracted data. Results are expressed as risk ratio (RR) or mean difference (MD) with 95% confidence intervals (CI). RESULTS Eleven RCTs, with a total of 1,633 patients, met the final inclusion criteria. Patients converted to everolimus had improved renal function at 1 year posttransplant with an estimated glomerular filtration rate (eGFR) of 5.36 mL/min per 1.73 m2 greater than patients remaining on CNI (p = 0.0005) and the longer-term results (> 1 year) of renal function was identical to that of 1 year. There was not a substantial difference in graft loss, mortality, and the occurrence of adverse events (AEs) or serious AEs. However, the risks of acute rejection and trial termination due to AEs with everolimus are respectively 1.82 and 2.63 times greater than patients staying on CNI at 1 year posttransplant (p = 0.02, p = 0.03, respectively). Further, those patients who converted to everolimus had a substantially greater risk of anemia, hyperlipidemia, hypercholesterolemia, hypokalemia, proteinuria, stomatitis, mouth ulceration, and acne. CONCLUSIONS Conversion from CNI to everolimus after kidney transplantation is associated with improved renal function in the first 5 years posttransplant but increases the risk of acute rejection at 1 year posttransplant and may not be well endured.
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Affiliation(s)
- Jinyu Liu
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Dong Liu
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Juan Li
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lan Zhu
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chengliang Zhang
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kai Lei
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qiling Xu
- Department of Biotechnology and Molecules, Assumption College, Worcester, Massachusetts, United States of America
| | - Ruxu You
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- * E-mail:
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Liu QF, Ye JM, Yu LX, Dong XH, Feng JH, Xiong Y, Gu XX, Li SS. Klotho mitigates cyclosporine A (CsA)-induced epithelial-mesenchymal transition (EMT) and renal fibrosis in rats. Int Urol Nephrol 2016; 49:345-352. [PMID: 27796696 DOI: 10.1007/s11255-016-1439-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 10/11/2016] [Indexed: 02/06/2023]
Abstract
PURPOSE Klotho deficiency is implicated in various kidney diseases, including renal fibrosis. The aim of this study was to investigate the effect of Klotho administration on epithelial-mesenchymal transition (EMT) and renal fibrosis induced by cyclosporine A (CsA) in rats. METHODS CsA-induced renal fibrosis was established by oral administration of CsA (30 mg/kg) to rats on a low-salt diet for 28 days. Klotho was administered to rats by intraperitoneal injection. Renal pathological changes were evaluated by hematoxylin and eosin and Masson's trichrome staining. The EMT response was assessed by measuring the level of TGF-β1, E-cadherin and α-SMA by immunohistochemistry and Western blot. RESULTS Administration of CsA for 28 days induced renal damage, decreased Klotho expression and activated the EMT response (demonstrated as increased TGF-β1 and α-SMA expression accompanied by decreased in E-cadherin expression). Treatment with Klotho significantly ameliorated pathological lesions of the kidney by modulating the expression of EMT-associated proteins in the kidney. CONCLUSIONS Klotho inhibits CsA-induced EMT and renal fibrosis in rats. Klotho may serve as a therapeutic agent to minimize CsA-induced renal fibrosis.
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Affiliation(s)
- Qi-Feng Liu
- Department of Nephrology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, China
| | - Jian-Ming Ye
- Department of Nephrology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, China
| | - Li-Xia Yu
- Department of Nephrology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, China
| | - Xiao-Hong Dong
- Department of Nephrology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, China
| | - Jian-Hua Feng
- Department of Nephrology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, China
| | - Yan Xiong
- Department of Nephrology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, China
| | - Xiao-Xia Gu
- Department of Nephrology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, China
| | - Sha-Sha Li
- Clinical Research Centre, Kunshan First People's Hospital Affiliated to Jiangsu University, 91 Qianjin West Road, Kunshan, Jiangsu, China.
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42
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Ferrandiz I, Congy-Jolivet N, Del Bello A, Debiol B, Trébern-Launay K, Esposito L, Milongo D, Dörr G, Rostaing L, Kamar N. Impact of Early Blood Transfusion After Kidney Transplantation on the Incidence of Donor-Specific Anti-HLA Antibodies. Am J Transplant 2016; 16:2661-9. [PMID: 26998676 DOI: 10.1111/ajt.13795] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 03/08/2016] [Accepted: 03/11/2016] [Indexed: 01/25/2023]
Abstract
Little is known about the impact of posttransplant blood transfusion on the sensitization of anti-HLA antibodies and the formation of donor-specific antibodies (DSAs). The aims of our study were to determine the 1-year incidence of DSAs (assessed using a solid-phase assay) and antibody-mediated rejection (AMR) in kidney transplant patients who had or had not received a blood transfusion during the first year after transplantation. Included were 390 non-HLA-sensitized patients who had received an ABO-compatible kidney transplant and had not previously or simultaneously received a nonkidney transplant. Overall, 64% of patients received a red blood cell transfusion within the first year after transplantation, most within the first month. The overall 1-year incidence of DSAs was significantly higher in patients that had undergone transfusion (7.2% vs. 0.7% in patients with no transfusion, p < 0.0001). AMR occurred more often in the transfusion group (n = 15, 6%) compared with the nontransfusion group (n = 2, 1.4%; p = 0.04). Blood transfusion was an independent predictive factor for de novo DSA formation but not for AMR. Patients who had a transfusion and developed DSAs were more often treated with cyclosporin A (n = 10, 55.5%) rather than tacrolimus (n = 45, 19.4%; p = 0.0001). In conclusion, early posttransplant blood transfusion may increase immunological risk, especially in underimmunosuppressed patients.
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Affiliation(s)
- I Ferrandiz
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France.,Université Paul Sabatier, Toulouse, France
| | - N Congy-Jolivet
- Université Paul Sabatier, Toulouse, France.,Molecular Immunogenetics Laboratory, EA 3034, Faculté de Médecine Purpan, IFR150 (INSERM), Toulouse, France.,Department of Immunology, Hôpital de Rangueil, CHU de Toulouse, Toulouse, France
| | - A Del Bello
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France.,Université Paul Sabatier, Toulouse, France
| | - B Debiol
- Etablissement Français du Sang, CHU Toulouse, Toulouse, France
| | - K Trébern-Launay
- EA 4275 Biostatistics, Clinical Research and Subjective Measures in Health Sciences, Nantes University, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), Nantes Hospital and University, INSERM 1064, CENTAURE, Nantes, France.,LabexTransplantex, CIC biotherapy, Nantes, France
| | - L Esposito
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France
| | - D Milongo
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France
| | - G Dörr
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France.,Université Paul Sabatier, Toulouse, France
| | - L Rostaing
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France.,Université Paul Sabatier, Toulouse, France.,INSERM U1043, IFR-BMT, CHU Purpan, Toulouse, France
| | - N Kamar
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France.,Université Paul Sabatier, Toulouse, France.,INSERM U1043, IFR-BMT, CHU Purpan, Toulouse, France
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The perils of immunosuppression minimization: lessons from protocol biopsies of renal allografts. Curr Opin Nephrol Hypertens 2016; 24:582-6. [PMID: 26371528 DOI: 10.1097/mnh.0000000000000170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
PURPOSE OF REVIEW To emphasize the pathogenicity of subclinical cellular inflammation in renal transplant recipients, and its relation to poor graft outcomes and the development of de-novo donor-specific antibody (DSA). RECENT FINDINGS Protocol biopsies have identified the gene signatures of innate and adaptive immunity in patients with minimal inflammation that correlate with the subsequent development of graft interstitial fibrosis, transplant glomerulopathy and antibody-mediated rejection. The risks of immunosuppression minimization, especially in HLA mismatched donor-recipient pairs, are highlighted. SUMMARY The major cause of renal allograft loss is immunological and a contributor to this is the minimization of immunosuppression. The prevention of premature graft loss requires better matching of class II HLA antigens, the targets of de-novo DSA, and monitoring for subclinical inflammation rejection with protocol biopsies or urine chemokines.
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Calcineurin Inhibitor Nephrotoxicity in the Era of Antibody-Mediated Rejection. Transplantation 2016; 100:1599-600. [DOI: 10.1097/tp.0000000000001244] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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45
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Dumortier J, Dharancy S, Calmus Y, Duvoux C, Durand F, Salamé E, Saliba F. Use of everolimus in liver transplantation: The French experience. Transplant Rev (Orlando) 2016; 30:161-70. [DOI: 10.1016/j.trre.2015.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 12/14/2015] [Indexed: 12/18/2022]
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Sawinski D, Trofe-Clark J, Leas B, Uhl S, Tuteja S, Kaczmarek JL, French B, Umscheid CA. Calcineurin Inhibitor Minimization, Conversion, Withdrawal, and Avoidance Strategies in Renal Transplantation: A Systematic Review and Meta-Analysis. Am J Transplant 2016; 16:2117-38. [PMID: 26990455 DOI: 10.1111/ajt.13710] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 12/28/2015] [Accepted: 01/07/2016] [Indexed: 01/25/2023]
Abstract
Despite their clinical efficacy, concerns about calcineurin inhibitor (CNI) toxicity make alternative regimens that reduce CNI exposure attractive for renal transplant recipients. In this systematic review and meta-analysis, we assessed four CNI immunosuppression strategies (minimization, conversion, withdrawal, and avoidance) designed to reduce CNI exposure and assessed the impact of each on patient and allograft survival, acute rejection and renal function. We evaluated 92 comparisons from 88 randomized controlled trials and found moderate- to high-strength evidence suggesting that minimization strategies result in better clinical outcomes compared with standard-dose regimens; moderate-strength evidence indicating that conversion to a mammalian target of rapamycin inhibitor or belatacept was associated with improved renal function but increased rejection risk; and moderate- to high-strength evidence suggesting planned CNI withdrawal could result in improved renal function despite an association with increased rejection risk. The evidence base for avoidance studies was insufficient to draw meaningful conclusions. The applicability of the review is limited by the large number of studies examining cyclosporine-based strategies and low-risk populations. Additional research is needed with tacrolimus-based regimens and higher risk populations. Moreover, research is necessary to clarify the effect of induction and adjunctive agents in alternative immunosuppression strategies and should include more comprehensive and consistent reporting of patient-centered outcomes.
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Affiliation(s)
- D Sawinski
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - J Trofe-Clark
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.,Department of Pharmacy Services, Hospital of the University of Pennsylvania, Philadelphia, PA
| | - B Leas
- Center for Evidence-based Practice, University of Pennsylvania Health System, Philadelphia, PA
| | - S Uhl
- ECRI Institute, Plymouth Meeting, PA
| | - S Tuteja
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | | | - B French
- Department of Biostatistics and Epidemiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - C A Umscheid
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.,Center for Evidence-based Practice, University of Pennsylvania Health System, Philadelphia, PA.,Department of Biostatistics and Epidemiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
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Casiraghi F, Cortinovis M, Perico N, Remuzzi G. Recent advances in immunosuppression and acquired immune tolerance in renal transplants. Am J Physiol Renal Physiol 2016; 310:F446-53. [DOI: 10.1152/ajprenal.00312.2015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 01/19/2016] [Indexed: 01/03/2023] Open
Affiliation(s)
- Federica Casiraghi
- IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri,” Transplant Research Center “Chiara Cucchi de Alessandri e Gilberto Crespi,” Ranica, Bergamo, Italy
- IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri,” Clinical Research Center for Rare Diseases “Aldo e Cele Daccò,” Ranica, Bergamo, Italy
| | - Monica Cortinovis
- IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri,” Transplant Research Center “Chiara Cucchi de Alessandri e Gilberto Crespi,” Ranica, Bergamo, Italy
- IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri,” Clinical Research Center for Rare Diseases “Aldo e Cele Daccò,” Ranica, Bergamo, Italy
| | - Norberto Perico
- IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri,” Clinical Research Center for Rare Diseases “Aldo e Cele Daccò,” Ranica, Bergamo, Italy
| | - Giuseppe Remuzzi
- IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri,” Transplant Research Center “Chiara Cucchi de Alessandri e Gilberto Crespi,” Ranica, Bergamo, Italy
- IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri,” Clinical Research Center for Rare Diseases “Aldo e Cele Daccò,” Ranica, Bergamo, Italy
- Unit of Nephrology and Dialysis, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy; and
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
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Gatault P, Bertrand D, Büchler M, Colosio C, Hurault de Ligny B, Weestel PF, Rerolle JP, Thierry A, Sayegh J, Moulin B, Snanoudj R, Rivalan J, Heng AE, Sautenet B, Lebranchu Y. Eight-year results of the Spiesser study, a randomized trial comparingde novosirolimus and cyclosporine in renal transplantation. Transpl Int 2016; 29:41-50. [DOI: 10.1111/tri.12656] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 05/13/2015] [Accepted: 07/30/2015] [Indexed: 12/30/2022]
Affiliation(s)
- Philippe Gatault
- Service de Néphrologie et Immunologie clinique; CHRU de Tours; Tours France
- Université François-Rabelais de Tours; Tours France
| | | | - Matthias Büchler
- Service de Néphrologie et Immunologie clinique; CHRU de Tours; Tours France
- Université François-Rabelais de Tours; Tours France
| | | | | | | | | | | | - Johnny Sayegh
- Service de Néphrologie-Dialyse-Transplantation; CHU d'Angers; Angers France
| | - Bruno Moulin
- Service de Néphrologie et Transplantation rénale; CHRU de Strasbourg; Strasbourg France
| | - Renaud Snanoudj
- Service de Transplantation rénale; AP-HP; Hôpital de Necker Enfants-Malades; Paris France
| | | | - Anne-Elisabeth Heng
- Service de Néphrologie et Transplantation rénale; CHU de Clermont-Ferrand; Clermont-Ferrand France
| | - Bénédicte Sautenet
- Service de Néphrologie et Immunologie clinique; CHRU de Tours; Tours France
| | - Yvon Lebranchu
- Service de Néphrologie et Immunologie clinique; CHRU de Tours; Tours France
- Université François-Rabelais de Tours; Tours France
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49
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EXP CLIN TRANSPLANTExp Clin Transplant 2015; 13. [DOI: 10.6002/ect.2015.0193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Malvezzi P, Rostaing L. The safety of calcineurin inhibitors for kidney-transplant patients. Expert Opin Drug Saf 2015; 14:1531-46. [DOI: 10.1517/14740338.2015.1083974] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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