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Rostaing LPE, Böhmig GA, Gibbons B, Taqi MM. Post-Transplant Surveillance and Management of Chronic Active Antibody-Mediated Rejection in Renal Transplant Patients in Europe. Transpl Int 2023; 36:11381. [PMID: 37529383 PMCID: PMC10389272 DOI: 10.3389/ti.2023.11381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 06/27/2023] [Indexed: 08/03/2023]
Abstract
Antibody mediated rejection (ABMR) is the leading cause of immune-related allograft failure following kidney transplantation. Chronic active ABMR (CABMR) typically occurs after one-year post-transplant and is the most common cause of late allograft failure. This study was designed to assess common practices in Europe for post-transplant surveillance 1 year after kidney transplant, as well as the diagnosis and management of CABMR. A 15-minute online survey with 58 multiple choice or open-ended questions was completed by EU transplant nephrologists, transplant surgeons and nephrologists. Survey topics included patient caseloads, post-transplant routine screening and treatment of CABMR. The results indicated that observing clinical measures of graft function form the cornerstone of post-transplant surveillance. This may be suboptimal, leading to late diagnoses and untreatable disease. Indeed, less than half of patients who develop CABMR receive treatment beyond optimization of immune suppression. This is attributable to not only late diagnoses, but also a lack of proven efficacious therapies. Intravenous Immunoglobulin (IVIG), steroid pulse and apheresis are prescribed by the majority to treat CABMR. While biologics can feature as part of treatment, there is no single agent that is being used by more than half of physicians.
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Affiliation(s)
- Lionel P. E. Rostaing
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Georg A. Böhmig
- Clinical Department of Nephrology and Dialysis, University Clinic for Internal Medicine III, Medical University of Vienna, Vienna, Austria
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Clazakizumab for the treatment of chronic active antibody-mediated rejection (AMR) in kidney transplant recipients: Phase 3 IMAGINE study rationale and design. Trials 2022; 23:1042. [PMID: 36550562 PMCID: PMC9772593 DOI: 10.1186/s13063-022-06897-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 11/08/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Chronic active antibody-mediated rejection (AMR) is a major cause of graft loss with no approved drugs for its treatment. Currently, off-label regimens are used, reflecting the high unmet need for effective therapies based on well-controlled trials. Clazakizumab is a high-affinity, humanized monoclonal antibody that binds interleukin-6 and decreases donor-specific antibody (DSA) production and inflammation. Phase 2 pilot studies of clazakizumab in kidney transplant recipients with chronic active AMR suggest modulation of DSA, stabilization of glomerular filtration rate (GFR), and a manageable safety profile. We report the design of the Phase 3 IMAGINE study (NCT03744910) to evaluate the safety and efficacy of clazakizumab for the treatment of chronic active AMR. METHODS IMAGINE is a multicenter, double-blind trial of approximately 350 kidney transplant recipients with chronic active AMR (Banff chronic glomerulopathy [cg] >0 with concurrent positive human leukocyte antigen DSA) randomized 1:1 to receive clazakizumab or placebo (12.5 mg subcutaneous once every 4 weeks). The event-driven trial design will follow patients until 221 occurrences of all-cause graft loss are observed, defined as return to dialysis, graft nephrectomy, re-transplantation, estimated GFR (eGFR) <15 mL/min/1.73m2, or death from any cause. A surrogate for graft loss (eGFR slope) will be assessed at 1 year based on prior modeling validation. Secondary endpoints will include measures of pharmacokinetics/pharmacodynamics. Recruitment is ongoing across North America, Europe, Asia, and Australia. DISCUSSION IMAGINE represents the first Phase 3 clinical trial investigating the safety and efficacy of clazakizumab in kidney transplant recipients with chronic active AMR, and the largest placebo-controlled trial in this patient population. This trial includes prognostic biomarker enrichment and uniquely utilizes the eGFR slope at 1 year as a surrogate endpoint for graft loss, which may accelerate the approval of a novel therapy for patients at risk of graft loss. The findings of this study will be fundamental in helping to address the unmet need for novel therapies for chronic active AMR. TRIAL REGISTRATION ClinicalTrials.gov NCT03744910 . Registered on November 19, 2018.
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3
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Chronic-active Antibody-mediated Rejection: To Belatacept or Not, That Is the HOT Question. Transplantation 2021; 105:478-479. [PMID: 32732617 DOI: 10.1097/tp.0000000000003279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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4
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Gregorini M, Del Fante C, Pattonieri EF, Avanzini MA, Grignano MA, Cassaniti I, Baldanti F, Comolli G, Nocco A, Ramondetta M, Viarengo G, Sepe V, Libetta C, Klersy C, Perotti C, Rampino T. Photopheresis Abates the Anti-HLA Antibody Titer and Renal Failure Progression in Chronic Antibody-Mediated Rejection. BIOLOGY 2021; 10:biology10060547. [PMID: 34207225 PMCID: PMC8234140 DOI: 10.3390/biology10060547] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/03/2021] [Accepted: 06/15/2021] [Indexed: 12/28/2022]
Abstract
Simple Summary The most common cause of late allograft failure is chronic active antibody-mediated rejection (ABMR), but no effective therapy is available. Different immunosuppressive drugs in combination with procedures that remove serum antibodies have been used and the results have not shown to improve graft and patient outcome, but only an increased risk of adverse events. Extracorporeal pho-topheresis (ECP) is leukapheresis-based immunomodulatory therapy not associated with adverse effect, in which lymphocytes treat-ed with 8-methoxypsoralen (8-MOP) are irradiated with ultraviolet-A (UVA) ex vivo and re-infused into the patient. In this study we investigated therapeutic long-term effect of ECP in patients with biopsy proved chronic ABMR. Abstract Objective: Chronic renal antibody-mediated rejection (ABMR) is a common cause of allograft failure, but an effective therapy is not available. Extracorporeal photopheresis (ECP) has been proven successful in chronic lung and heart rejection, and graft versus host disease. The aim of this study was to evaluate the effectiveness of ECP in chronic ABMR patients. Patients and Methods: We investigated ECP treatment in 14 patients with biopsy-proven chronic ABMR and stage 2–3 chronic renal failure. The primary aim was to e valuate the eGFR lowering after 1 year of ECP therapy. The ECP responders (R) showed eGFR reduction greater than 20% vs the basal levels. We also evaluated the effectiveness of ECP on proteinuria, anti-HLA antibodies (HLAab), interleukin 6 (IL-6) serum levels, and CD3, CD4, CD8, CD19, NK, Treg and T helper 17 (Th17) circulating cells. Results: Three patients dropped out of the study. The R patients were eight (72.7%) out of the 11 remaining patients. Because ECP was not associated with any adverse reaction, the R patients continued such treatment for up to 3 years, showing a persisting eGFR stabilization. Twenty four hour proteinuria did not increase in the R patients over the follow-up when compared to the non-responder patients (NR). In the R patients, the HLAab levels were reduced and completely cleared in six out of eight patients when compared with the NR patients. The NR HLAab levels also increased after the discontinuation of the ECP. The ECP in the R patients showed a decrease in CD3, CD4, CD8, CD19, and NK circulating cells. The ECP treatment in the R patients also induced Tregs and Th17 cell increases, and a decrease of the IL-6 serum levels. Conclusions: ECP abates the HLAab titer and renal failure progression in patients with chronic renal ABMR, modulating the immune cellular and humoral responses.
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Affiliation(s)
- Marilena Gregorini
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy;
- Unit of Nephrology, Dialysis and Transplantation, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (E.F.P.); (M.A.G.); (V.S.); (T.R.)
- Correspondence: ; Tel.: +39-0382-502591; Fax: +39-0382-503666
| | - Claudia Del Fante
- Immunohematology and Transfusion Service, IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (C.D.F.); (G.V.); (C.P.)
| | - Eleonora Francesca Pattonieri
- Unit of Nephrology, Dialysis and Transplantation, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (E.F.P.); (M.A.G.); (V.S.); (T.R.)
| | - Maria Antonietta Avanzini
- Immunology and Transplantation Laboratory, Cell Factory, Pediatric Hematology Oncology, Fondazione IRCCS Policlinico S. Matteo, 27100 Pavia, Italy;
| | - Maria Antonietta Grignano
- Unit of Nephrology, Dialysis and Transplantation, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (E.F.P.); (M.A.G.); (V.S.); (T.R.)
| | - Irene Cassaniti
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (I.C.); (F.B.); (G.C.)
| | - Fausto Baldanti
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (I.C.); (F.B.); (G.C.)
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Giuditta Comolli
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (I.C.); (F.B.); (G.C.)
- Experimental Research Laboratories, Biotechnology Area, Fondazione IRCCS Policlinico S. Matteo, 27100 Pavia, Italy
| | - Angela Nocco
- Laboratory of Transplant Immunology, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico Milano, 20122 Milano, Italy; (A.N.); (M.R.)
| | - Miriam Ramondetta
- Laboratory of Transplant Immunology, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico Milano, 20122 Milano, Italy; (A.N.); (M.R.)
| | - Gianluca Viarengo
- Immunohematology and Transfusion Service, IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (C.D.F.); (G.V.); (C.P.)
| | - Vincenzo Sepe
- Unit of Nephrology, Dialysis and Transplantation, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (E.F.P.); (M.A.G.); (V.S.); (T.R.)
| | - Carmelo Libetta
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy;
- Unit of Nephrology, Dialysis and Transplantation, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (E.F.P.); (M.A.G.); (V.S.); (T.R.)
| | - Catherine Klersy
- Clinical Epidemiology and Biometry Unit, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
| | - Cesare Perotti
- Immunohematology and Transfusion Service, IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (C.D.F.); (G.V.); (C.P.)
| | - Teresa Rampino
- Unit of Nephrology, Dialysis and Transplantation, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (E.F.P.); (M.A.G.); (V.S.); (T.R.)
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Lavacca A, Presta R, Gai C, Mella A, Gallo E, Camussi G, Abbasciano I, Barreca A, Caorsi C, Fop F, Messina M, Rossetti M, Biancone L. Early effects of first-line treatment with anti-interleukin-6 receptor antibody tocilizumab for chronic active antibody-mediated rejection in kidney transplantation. Clin Transplant 2020; 34:e13908. [PMID: 32415711 DOI: 10.1111/ctr.13908] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 05/09/2020] [Accepted: 05/09/2020] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Chronic active antibody-mediated rejection (cAMR) is a major determinant of late allograft failure. Rituximab/immunoglobulins (IVIg) + plasma exchange (PLEX) showed controversial results in cAMR treatment. Tocilizumab (TCZ), a humanized anti-interleukin 6 receptor antibody, has been recently used as rescue therapy in patients non-responsive to rituximab/IVIg/PLEX with favorable outcomes. Whether TCZ acts "per se" or requires a priming effect from previous treatments is currently unknown. METHODS Fifteen patients with cAMR were treated with TCZ as a first-line therapy and followed for a median time of 20.7 months. RESULTS Despite the majority of patients experiencing advanced transplant glomerulopathy (TG) at diagnosis (60% with cg3), glomerular filtration rate and proteinuria stabilized during the follow-up, with a significant reduction in donor-specific antibodies. Protocol biopsies after 6 months demonstrated significant amelioration of microvascular inflammation and no TG, C4d deposition, or IF/TA progression. Gene-expression and immunofluorescence analysis showed upregulation of three genes (TJP-1, AKR1C3, and CASK) involved in podocyte, mesangial, and tubular restoration. CONCLUSION Tocilizumab adopted as a first-line approach in cAMR was associated with early serological and histological improvements and functional stabilization even in advanced TG, suggesting a role for the use of TCZ alone with the avoidance of unnecessary previous immunosuppressants.
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Affiliation(s)
- Antonio Lavacca
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Roberto Presta
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Chiara Gai
- Stem Cell Laboratory, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Alberto Mella
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Ester Gallo
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Giovanni Camussi
- Stem Cell Laboratory, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Isabella Abbasciano
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Antonella Barreca
- Division of Pathology, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Cristiana Caorsi
- Department of Medical Sciences, Immunogenetic and Transplant Biology Center, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Fabrizio Fop
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Maria Messina
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Maura Rossetti
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
| | - Luigi Biancone
- Renal Transplant Center "A. Vercellone", Nephrology, Dialysis and Renal Transplant Division, Department of Medical Sciences, "Città della Salute e della Scienza" Hospital, University of Turin, Turin, Italy
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Degner KR, Wilson NA, Reese SR, Parajuli S, Aziz F, Garg N, Mohamed M, Singh T, Mandelbrot DA, Panzer SE, Redfield RR, Van Hyfte K, Zhong W, Hidalgo LG, Djamali A. Short-term Immunopathological Changes Associated with Pulse Steroids/IVIG/Rituximab Therapy in Late Kidney Allograft Antibody Mediated Rejection. ACTA ACUST UNITED AC 2020; 1:389-398. [PMID: 34476406 DOI: 10.34067/kid.0001082019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background B-cell depletion is a common treatment of antibody-mediated rejection (ABMR). We sought to determine the specific immunopathologic effects of this therapeutic approach in kidney transplantation. Methods This was a prospective observational study of kidney transplant recipients diagnosed with late ABMR (>3 months after transplant). Patients received treatment with pulse steroids, IVIG, and rituximab. Donor specific HLA antibodies (DSA), kidney allograft pathology, renal function, immune cell phenotypes, and 47 circulating cytokines were assessed at baseline and at three months. Results We enrolled 23 patients in this study between April 2015 and March 2019. The majority of patients were male (74%) and Caucasian (78%) with an average age of 45.6±13.8 years. ABMR was diagnosed at 6.8±5.9 years (4 months-25 years) post-transplant. Treatment was associated with a significant decline in circulating HLA class I DSA (P=0.003) and class II DSA (P=0.002) and peritubular capillaritis (ptc, P=0.04) compared to baseline. Serum creatinine, BUN, eGFR, and proteinuria (UPC) remained stable. Circulating B-cells were depleted to barely detectable levels (P≤0.001), whereas BAFF (P=0.001), APRIL (P<0.001), and IL-10 (P=0.02), levels increased significantly post-treatment. Notably, there was a significant rise in circulating CD4+ (P=0.02) and CD8+ T-cells (P=0.003). We also noted a significant correlation between circulating cytotoxic CD8+ T-cells and BAFF (P=0.05), regulatory T-cells and IL10 (P=0.002), and HLA class I DSA (P=0.005). Conclusions Short-term pulse steroids/IVIG/rituximab therapy was associated with inhibition of ABMR (DSA and ptc), stabilization of kidney function, and increased regulatory B-cell and T-cell survival cytokines. Additional studies are needed to understand the implications of B cell-depletion on the crosstalk between T-cells, B-cells, and humoral components that regulate ABMR.
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Affiliation(s)
- Kenna R Degner
- Department of Surgery, University of Wisconsin School of Medicine and Public Health (UWSMPH), Madison, WI
| | | | | | | | - Fahad Aziz
- Department of Medicine, UWSMPH, Madison, WI
| | | | | | | | | | | | - Robert R Redfield
- Department of Surgery, University of Wisconsin School of Medicine and Public Health (UWSMPH), Madison, WI
| | | | - Weixiong Zhong
- Department of Pathology and Laboratory Medicine, UWSMPH, Madison, WI
| | - Luis G Hidalgo
- Department of Surgery, University of Wisconsin School of Medicine and Public Health (UWSMPH), Madison, WI
| | - Arjang Djamali
- Department of Surgery, University of Wisconsin School of Medicine and Public Health (UWSMPH), Madison, WI.,Department of Medicine, UWSMPH, Madison, WI
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Treatment with intravenous immunoglobulins and methylprednisolone may significantly decrease loss of renal function in chronic-active antibody-mediated rejection. BMC Nephrol 2019; 20:218. [PMID: 31200654 PMCID: PMC6567552 DOI: 10.1186/s12882-019-1385-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 05/15/2019] [Indexed: 02/06/2023] Open
Abstract
Background Chronic-active antibody mediated rejection (c-aABMR) is a major contributor to long-term kidney allograft loss. We conducted a retrospective analysis to establish the efficacy of treatment with intravenous immunoglobulins (IVIG) and pulse methylprednisolone (MP) of patients with c-aABMR. Methods Sixty-nine patients, in the period 2005–2017, with the diagnosis (suspicious for) c-aABMR that were treated with IVIG and MP were included. Patients were administered three doses of 1 g intravenous MP combined with a single dose of IVIG (1 g/kg body weight). Primary outcome was the decline in allograft function one year post treatment. Responders to IVIG-MP therapy were defined by an eGFR one year after treatment which was at least 25% above the projected allograft function. Results Patients showed an average decline in eGFR of 9.8 ml/min/1.73m2 the year prior to treatment. Following treatment, a significant reduction (p < 0.001) in eGFR decline was observed (6.3 ml/min/1.73m2). Furthermore, a significant improvement in proteinuria was observed upon treatment (p < 0.001). Sixty-two percent (n = 43) of the patients were considered a responder and showed considerable slowing of graft function deterioration in the year after treatment (p < 0.001). Three and 5-year graft survival was significantly superior in responders. Conclusions More than 60% of patients with c-aABMR with a progressive decline in eGFR respond favorably to treatment with IVIG-MP resulting in a significant improvement of graft survival (Sablik, Am J Transplant 18, 2018). Electronic supplementary material The online version of this article (10.1186/s12882-019-1385-z) contains supplementary material, which is available to authorized users.
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8
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Piñeiro GJ, De Sousa-Amorim E, Solé M, Ríos J, Lozano M, Cofán F, Ventura-Aguiar P, Cucchiari D, Revuelta I, Cid J, Palou E, Campistol JM, Oppenheimer F, Rovira J, Diekmann F. Rituximab, plasma exchange and immunoglobulins: an ineffective treatment for chronic active antibody-mediated rejection. BMC Nephrol 2018; 19:261. [PMID: 30309322 PMCID: PMC6182805 DOI: 10.1186/s12882-018-1057-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/24/2018] [Indexed: 12/20/2022] Open
Abstract
Background Chronic active antibody-mediated rejection (c-aABMR) is an important cause of allograft failure and graft loss in long-term kidney transplants. Methods To determine the efficacy and safety of combined therapy with rituximab, plasma exchange (PE) and intravenous immunoglobulins (IVIG), a cohort of patients with transplant glomerulopathy (TG) that met criteria of active cABMR, according to BANFF’17 classification, was identified. Results We identified 62 patients with active c-aABMR and TG (cg ≥ 1). Twenty-three patients were treated with the combination therapy and, 39 patients did not receive treatment and were considered the control group. There were no significant differences in the graft survival between the two groups. The number of graft losses at 12 and 24 months and the decline of eGFR were not different and independent of the treatment. A decrease of eGFR≥13 ml/min between 6 months before and c-aABMR diagnosis, was an independent risk factor for graft loss at 24 months (OR = 5; P = 0.01). Infections that required hospitalization during the first year after c-aABMR diagnosis were significantly more frequent in treated patients (OR = 4.22; P = 0.013), with a ratio infection/patient-year of 0.65 and 0.20 respectively. Conclusions Treatment with rituximab, PE, and IVIG in kidney transplants with c-aABMR did not improve graft survival and was associated with a significant increase in severe infectious complications. Trial registration Agencia Española de Medicametos y Productos Sanitarios (AEMPS): 14566/RG 24161. Study code: UTR-INM-2017-01. Electronic supplementary material The online version of this article (10.1186/s12882-018-1057-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gastón J Piñeiro
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain.,Laboratori Experimental de Nefrologia i Trasplantament (LENIT), IDIBAPS, Barcelona, Spain
| | - Erika De Sousa-Amorim
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain
| | - Manel Solé
- Department of Pathology, Hospital Clinic, Barcelona, Spain
| | - José Ríos
- Medical Statistics Core Facility, IDIBAPS, Hospital Clinic, Barcelona, Spain.,Biostatistics Unit, Faculty of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Miguel Lozano
- Apheresis Unit, Department of Hemotherapy and Hemostasis, IDIBAPS, Hospital Clinic, Barcelona, Spain
| | - Frederic Cofán
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain
| | - Pedro Ventura-Aguiar
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain.,Laboratori Experimental de Nefrologia i Trasplantament (LENIT), IDIBAPS, Barcelona, Spain
| | - David Cucchiari
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain.,Laboratori Experimental de Nefrologia i Trasplantament (LENIT), IDIBAPS, Barcelona, Spain
| | - Ignacio Revuelta
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain.,Laboratori Experimental de Nefrologia i Trasplantament (LENIT), IDIBAPS, Barcelona, Spain.,Red de Investigación Renal (REDinREN), Madrid, Spain
| | - Joan Cid
- Apheresis Unit, Department of Hemotherapy and Hemostasis, IDIBAPS, Hospital Clinic, Barcelona, Spain
| | - Eduard Palou
- Department of Immunology, Hospital Clinic, Barcelona, Spain
| | - Josep M Campistol
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain.,Red de Investigación Renal (REDinREN), Madrid, Spain
| | - Federico Oppenheimer
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain
| | - Jordi Rovira
- Laboratori Experimental de Nefrologia i Trasplantament (LENIT), IDIBAPS, Barcelona, Spain. .,Red de Investigación Renal (REDinREN), Madrid, Spain.
| | - Fritz Diekmann
- Department of Nephrology and Renal Transplantation, ICNU, Hospital Clinic, Barcelona, Spain. .,Laboratori Experimental de Nefrologia i Trasplantament (LENIT), IDIBAPS, Barcelona, Spain. .,Red de Investigación Renal (REDinREN), Madrid, Spain.
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Mella A, Gallo E, Messina M, Caorsi C, Amoroso A, Gontero P, Verri A, Maletta F, Barreca A, Fop F, Biancone L. Treatment with plasmapheresis, immunoglobulins and rituximab for chronic-active antibody-mediated rejection in kidney transplantation: Clinical, immunological and pathological results. World J Transplant 2018; 8:178-187. [PMID: 30211026 PMCID: PMC6134268 DOI: 10.5500/wjt.v8.i5.178] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/14/2018] [Accepted: 06/28/2018] [Indexed: 02/05/2023] Open
Abstract
AIM To evaluate the role of a therapeutic regimen with plasma exchange, intravenous immunoglobulins and rituximab in chronic-active antibody-mediated rejection (cAMR) settings.
METHODS We compared 21 kidney transplant recipients (KTRs) with a diagnosis of cAMR in a retrospective case-control analysis: nine KTRs treated with plasmapheresis, intravenous immunoglobulins and rituximab (PE-IVIG-RTX group) vs 12 patients (control group) not treated with antibody-targeted therapies. We examined kidney survival and functional outcomes 24 mo after diagnosis. Histological features and donor-specific antibody (DSA) characteristics (MFI and C1q-fixing ability) were also investigated.
RESULTS No difference in graft survival between the two groups was noted: three out of nine patients in the PE-IVIG-RTX group (33.3%) and 4/12 in the control group (33.3%) experienced loss of allograft function at a median time after diagnosis of 14 mo (min 12-max 18) and 15 mo (min 7-max 22), respectively. Kidney functional tests and proteinuria 24 mo after cAMR diagnosis were also similar in both groups. Only microvascular inflammation (glomerulitis + peritubular capillaritis score) was significantly reduced after PE-IVIG-RTX in seven out of eight patients (87.5%) in the PE-IVIG-RTX group (median score 3 in pre-treatment biopsy vs 1.5 in post-treatment biopsy; P = 0.047), without any impact on kidney survival and/or DSA characteristics. No functional or histological parameter at diagnosis was predictive of clinical outcome.
CONCLUSION Our data showed no difference in the two year post-treatment outcome of kidney grafts treated with PE-IVIG-RTX for cAMR diagnosis, however there were notable improvements in microvascular inflammation in post-therapy protocol biopsies. Further studies, especially involving innovative therapeutic approaches, are required to improve the management and long-term results of this severe condition.
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Affiliation(s)
- Alberto Mella
- Renal Transplantation Center “A. Vercellone”, Division of Nephrology Dialysis and Transplantation, Department of Medical Sciences, Città della Salute e della Scienza Hospital and University of Turin, Turin 10126, Italy
| | - Ester Gallo
- Renal Transplantation Center “A. Vercellone”, Division of Nephrology Dialysis and Transplantation, Department of Medical Sciences, Città della Salute e della Scienza Hospital and University of Turin, Turin 10126, Italy
| | - Maria Messina
- Renal Transplantation Center “A. Vercellone”, Division of Nephrology Dialysis and Transplantation, Department of Medical Sciences, Città della Salute e della Scienza Hospital and University of Turin, Turin 10126, Italy
| | - Cristiana Caorsi
- Immunogenetics and Transplant Biology Service, AOU Città della Salute e della Scienza di Torino and Department of Medical Sciences, University of Turin, Turin 10126, Italy
| | - Antonio Amoroso
- Immunogenetics and Transplant Biology Service, AOU Città della Salute e della Scienza di Torino and Department of Medical Sciences, University of Turin, Turin 10126, Italy
| | - Paolo Gontero
- Division of Urology, Department of Surgical Sciences, Città della Salute e della Scienza Hospital and University of Turin, Turin 10126, Italy
| | - Aldo Verri
- Division of Vascular Surgery, Department of Thoracic-Vascular Surgery, Città della Salute e della Scienza Hospital, Turin 10126, Italy
| | - Francesca Maletta
- Division of Pathology Transplantation, Department of Medical Sciences, University of Turin, Turin 10126, Italy
| | - Antonella Barreca
- Division of Pathology Transplantation, Department of Medical Sciences, University of Turin, Turin 10126, Italy
| | - Fabrizio Fop
- Renal Transplantation Center “A. Vercellone”, Division of Nephrology Dialysis and Transplantation, Department of Medical Sciences, Città della Salute e della Scienza Hospital and University of Turin, Turin 10126, Italy
| | - Luigi Biancone
- Renal Transplantation Center “A. Vercellone”, Division of Nephrology Dialysis and Transplantation, Department of Medical Sciences, Città della Salute e della Scienza Hospital and University of Turin, Turin 10126, Italy
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10
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Cioni M, Nocera A, Tagliamacco A, Basso S, Innocente A, Fontana I, Magnasco A, Trivelli A, Klersy C, Gurrado A, Ramondetta M, Boghen S, Catenacci L, Verrina E, Garibotto G, Ghiggeri GM, Cardillo M, Ginevri F, Comoli P. Failure to remove de novo donor-specific HLA antibodies is influenced by antibody properties and identifies kidney recipients with late antibody-mediated rejection destined to graft loss - a retrospective study. Transpl Int 2018; 32:38-48. [PMID: 30076765 DOI: 10.1111/tri.13325] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/03/2018] [Accepted: 07/31/2018] [Indexed: 12/15/2022]
Abstract
Current research is focusing on identifying bioclinical parameters for risk stratification of renal allograft loss, largely due to antibody-mediated rejection (AMR). We retrospectively investigated graft outcome predictors in 24 unsensitized pediatric kidney recipients developing HLA de novo donor-specific antibodies (dnDSAs), and treated for late AMR with plasmapheresis + low-dose IVIG + Rituximab or high-dose IVIG + Rituximab. Renal function and DSA properties were assessed before and longitudinally post treatment. The estimated GFR (eGFR) decline after treatment was dependent on a negative % eGFR variation in the year preceding treatment (P = 0.021) but not on eGFR at treatment (P = 0.74). At a median follow-up of 36 months from AMR diagnosis, 10 patients lost their graft. Altered eGFR (P < 0.001) and presence of C3d-binding DSAs (P = 0.005) at treatment, and failure to remove DSAs (P = 0.01) were negatively associated with graft survival in the univariable analysis. Given the relevance of DSA removal for therapeutic success, we analyzed antibody properties dictating resistance to anti-humoral treatment. In the multivariable analysis, C3d-binding ability (P < 0.05), but not C1q-binding, and high mean fluorescence intensity (P < 0.05) were independent factors characterizing DSAs scarcely susceptible to removal. The poor prognosis of late AMR is related to deterioration of graft function prior to treatment and failure to remove C3d binding and/or high-MFI DSAs.
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Affiliation(s)
- Michela Cioni
- Laboratory of Molecular Nephrology, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Arcangelo Nocera
- Nephrology, Dialysis, Transplantation Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Augusto Tagliamacco
- Clinical Nephrology Unit and Transplant Coordination Unit, Policlinico San Martino, Genova, Italy
| | - Sabrina Basso
- Pediatric Hematology/Oncology & Cell Factory, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Annalisa Innocente
- Transplantation Immunology, Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - Iris Fontana
- Vascular and Endovascular Unit and Kidney Transplant Surgery Unit, Policlinico San Martino, Genova, Italy
| | - Alberto Magnasco
- Nephrology, Dialysis, Transplantation Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Antonella Trivelli
- Nephrology, Dialysis, Transplantation Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Catherine Klersy
- Biometry and Statistics Service, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Antonella Gurrado
- Pediatric Hematology/Oncology & Cell Factory, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Miriam Ramondetta
- Transplantation Immunology, Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - Stella Boghen
- Pediatric Hematology/Oncology & Cell Factory, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Laura Catenacci
- Pediatric Hematology/Oncology & Cell Factory, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Enrico Verrina
- Nephrology, Dialysis, Transplantation Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Giacomo Garibotto
- Clinical Nephrology Unit, University of Genova and Policlinico San Martino, Genova, Italy
| | - Gian Marco Ghiggeri
- Nephrology, Dialysis, Transplantation Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Massimo Cardillo
- Transplantation Immunology, Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - Fabrizio Ginevri
- Nephrology, Dialysis, Transplantation Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Patrizia Comoli
- Pediatric Hematology/Oncology & Cell Factory, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
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11
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Bajpai NK, Bajpayee A, Charan J, Pareek P, Elhence P, Kirubakaran R. Interventions for treating antibody-mediated acute rejection in kidney transplant recipients. Hippokratia 2018. [DOI: 10.1002/14651858.cd013033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nitin K Bajpai
- All India Institute of Medical Sciences (AIIMS); Department of Nephrology; Jodhpur Rajasthan India 342005
| | - Archana Bajpayee
- All India Institute of Medical Sciences (AIIMS); Department of Transfusion Medicine & Blood Bank; Basni Phase II Jodhpur Rajasthan India 342005
| | - Jaykaran Charan
- All India Institute of Medical Sciences (AIIMS); Department of Pharmacology; Basni Phase II Jodhpur Rajasthan India 342005
| | - Puneet Pareek
- All India Institute of Medical Sciences (AIIMS); Department of Radiation Oncology; Basni Phase II Jodhpur Rajasthan India 342005
| | - Poonam Elhence
- All India Institute of Medical Sciences (AIIMS); Department of Pathology; Basni Phase II Jodhpur Rajasthan India 342005
| | - Richard Kirubakaran
- Christian Medical College; Cochrane South Asia, Prof. BV Moses Centre for Evidence-Informed Health Care and Health Policy; Carman Block II Floor CMC Campus, Bagayam Vellore India 632002
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12
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Hofmeyer BA, Look KA, Hager DR. Refill-Based Medication Use Quality Measures in Kidney Transplant Recipients: Examination of Proportion of Days Covered and Medication Possession Ratio. J Manag Care Spec Pharm 2018; 24:367-372. [PMID: 29578851 PMCID: PMC10398127 DOI: 10.18553/jmcp.2018.24.4.367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The Pharmacy Quality Alliance's definition of proportion of days covered (PDC) and medication possession ratio (MPR) have not been examined as potential quality measures in the kidney transplant recipient population. OBJECTIVES To (a) describe the frequency distribution of MPR and PDC using mycophenolic acid products in a real-world kidney transplant recipient population and (b) evaluate associations between MPR and PDC with late (> 90 days after transplantation) biopsy-proven acute rejection (BPAR). METHODS This was a retrospective cohort study combining data from the Wisconsin Allograft Recipient Database with University of Wisconsin (UW) Health Specialty Pharmacy prescription claims and dispensing data from March 10, 2006, to June 30, 2012. Patients who met criteria for persistence filling mycophenolic acid prescriptions at UW Health Specialty Pharmacy in the first year following discharge from kidney transplantation surgery hospitalization were included. Patients were excluded if they were enrolled in a clinical trial, if they had BPAR within 90 days of transplantation, or if they did not have panel reactive antibody data available. PDC and MPR were calculated over 360 days after discharge, and multivariable analyses were performed to determine if there were associations between PDC or MPR with late BPAR within 3 years. RESULTS This study included 388 patients. The incidence of 3-year late BPAR was 5.1% (n = 20). Characteristics of patients who experienced late BPAR were largely consistent with those who did not experience late BPAR, with the exception of number of hospital readmissions, which was higher among patients who experienced late BPAR. The frequency distribution of PDC and MPR exhibited a skewed left distribution, with a median PDC of 0.972 and a median MPR of 1.000. Higher PDC was associated with lower odds of late BPAR (OR = 0.041, 95% CI = 0.004-0.417) in multivariable analysis, as was a higher MPR (OR = 0.041, 95% CI = 0.004-0.419). CONCLUSIONS MPR and PDC may be calculated from data available to pharmacies and health plans, and each was associated with 3-year late BPAR among patients who did not experience early BPAR. However, the construct validity of these medication adherence measures requires further study. DISCLOSURES This study was not funded. The authors report no conflicts of interest and no relevant financial interests related to the products or services discussed in this article. Study concept and design were contributed by Hofmeyer, along with Look and Hager. Hager took the lead in data collection, along with the other authors. Data interpretation was performed by Look, along with the other authors. The manuscript was primarily written by Hofmeyer, assisted by Look and Hager, and revised by all of the authors.
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Affiliation(s)
- Brooke A Hofmeyer
- 1 Department of Pharmaceutical Care, University of Iowa Hospitals and Clinics, Iowa City
| | - Kevin A Look
- 2 University of Wisconsin School of Pharmacy, Madison
| | - David R Hager
- 3 Department of Pharmacy, University of Wisconsin Health, Madison
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13
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Transplant glomerulopathy. Mod Pathol 2018; 31:235-252. [PMID: 29027535 DOI: 10.1038/modpathol.2017.123] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/28/2017] [Accepted: 08/10/2017] [Indexed: 12/13/2022]
Abstract
In the renal allograft, transplant glomerulopathy represents a morphologic lesion and not a specific diagnosis. The hallmark pathologic feature is glomerular basement membrane reduplication by light microscopy or electron microscopy in the absence of immune complex deposits. Transplant glomerulopathy results from chronic, recurring endothelial cell injury that can be mediated by HLA alloantibodies (donor-specific antibodies), various autoantibodies, cell-mediated immune injury, thrombotic microangiopathy, or chronic hepatitis C. Clinically, transplant glomerulopathy may be silent, detectable on protocol biopsy, or present with overt manifestations, including up to nephrotic range proteinuria, hypertension, and declining glomerular filtration rate. In either case, transplant glomerulopathy is associated with reduced graft survival. This review details the morphologic features of transplant glomerulopathy found on light microscopy, immunofluorescence microscopy, and electron microscopy. The pathophysiology of the causes and risk factors are discussed. Clinical manifestations are emphasized and potential therapeutic modalities are examined.
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14
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Abstract
Donor-specific antibodies have become an established biomarker predicting antibody-mediated rejection. Antibody-mediated rejection is the leading cause of graft loss after kidney transplant. There are several phenotypes of antibody-mediated rejection along post-transplant course that are determined by the timing and extent of humoral response and the various characteristics of donor-specific antibodies, such as antigen classes, specificity, antibody strength, IgG subclasses, and complement binding capacity. Preformed donor-specific antibodies in sensitized patients can trigger hyperacute rejection, accelerated acute rejection, and early acute antibody-mediated rejection. De novo donor-specific antibodies are associated with late acute antibody-mediated rejection, chronic antibody-mediated rejection, and transplant glomerulopathy. The pathogeneses of antibody-mediated rejection include not only complement-dependent cytotoxicity, but also complement-independent pathways of antibody-mediated cellular cytotoxicity and direct endothelial activation and proliferation. The novel assay for complement binding capacity has improved our ability to predict antibody-mediated rejection phenotypes. C1q binding donor-specific antibodies are closely associated with acute antibody-mediated rejection, more severe graft injuries, and early graft failure, whereas C1q nonbinding donor-specific antibodies correlate with subclinical or chronic antibody-mediated rejection and late graft loss. IgG subclasses have various abilities to activate complement and recruit effector cells through the Fc receptor. Complement binding IgG3 donor-specific antibodies are frequently associated with acute antibody-mediated rejection and severe graft injury, whereas noncomplement binding IgG4 donor-specific antibodies are more correlated with subclinical or chronic antibody-mediated rejection and transplant glomerulopathy. Our in-depth knowledge of complex characteristics of donor-specific antibodies can stratify the patient's immunologic risk, can predict distinct phenotypes of antibody-mediated rejection, and hopefully, will guide our clinical practice to improve the transplant outcomes.
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Affiliation(s)
- Rubin Zhang
- Section of Nephrology, Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana
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15
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Abstract
Background There is limited information on treatment strategies and monitoring strategies for late antibody-mediated rejection (ABMR) after kidney transplantation. Methods In this observational and nonrandomized study, we compared 78 patients diagnosed with late ABMR (>3 months after transplant) who were treated with standard of care steroids/IVIG (n = 38) ± rituximab (n = 40) at our center between March 1, 2013 and December 31, 2016. All patients had follow-up biopsy and donor-specific antibodies (DSA) monitoring within 3 to 12 weeks. Results Patients had biopsy 7.3 ± 7 years after transplant and were followed for 15.9 ± 9.6 months after ABMR was diagnosed. Both treatment strategies were associated with a significant decline in DSA, microvascular inflammation (peritubular capillaritis + glomerulitis), and C4d Banff scores. In univariate regression analyses, rituximab, estimated glomerular filtration rate (eGFR), Banff i, t, v, chronicity (interstitial fibrosis + tubular atrophy + fibrous intimal thickening + allograft glomerulopathy) scores on the first biopsy, and eGFR and Banff v score on follow-up biopsy were associated with graft loss. Multivariate analyses retained only rituximab (hazard ratio, 0.23; 95% confidence interval, 0.06-0.84; P = 0.03) and eGFR at follow-up biopsy (0.84; 95% confidence interval, 0.76-0.92; P < 0.001) as significant predictors of graft loss. Kaplan-Meier analyses demonstrated that the benefit associated with rituximab was apparent after 1 year (15% vs 32% graft loss, P = 0.02). Conclusion Treatment of late ABMR with steroids/IVIG ± rituximab was effective in reducing DSA and microcirculation inflammation. The addition of rituximab was associated with better graft survival. Follow-up biopsies could be considered in the management of acute rejection to monitor the effect of therapy. Randomized studies on the best therapeutic options for ABMR are needed.
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16
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Mulley WR, Huang LL, Ramessur Chandran S, Longano A, Amos LAR, Polkinghorne KR, Nikolic-Paterson DJ, Kanellis J. Long-term graft survival in patients with chronic antibody-mediated rejection with persistent peritubular capillaritis treated with intravenous immunoglobulin and rituximab. Clin Transplant 2017. [DOI: 10.1111/ctr.13037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William R. Mulley
- Department of Nephrology; Monash Medical Centre; Clayton Vic. Australia
- Department of Medicine; Centre for Inflammatory Diseases; Monash University; Clayton Vic. Australia
| | - Louis L. Huang
- Department of Nephrology; Monash Medical Centre; Clayton Vic. Australia
| | - Sharmila Ramessur Chandran
- Department of Nephrology; Monash Medical Centre; Clayton Vic. Australia
- Department of Medicine; Centre for Inflammatory Diseases; Monash University; Clayton Vic. Australia
| | - Anthony Longano
- Department of Anatomical Pathology; Monash Medical Centre; Clayton Vic. Australia
| | - Liv A. R. Amos
- Department of Nephrology; Monash Medical Centre; Clayton Vic. Australia
- Department of Medicine; Centre for Inflammatory Diseases; Monash University; Clayton Vic. Australia
| | - Kevan R. Polkinghorne
- Department of Nephrology; Monash Medical Centre; Clayton Vic. Australia
- Department of Medicine; Centre for Inflammatory Diseases; Monash University; Clayton Vic. Australia
- Department of Epidemiology and Preventive Medicine; Monash University; Prahran Vic. Australia
| | - David J. Nikolic-Paterson
- Department of Nephrology; Monash Medical Centre; Clayton Vic. Australia
- Department of Medicine; Centre for Inflammatory Diseases; Monash University; Clayton Vic. Australia
| | - John Kanellis
- Department of Nephrology; Monash Medical Centre; Clayton Vic. Australia
- Department of Medicine; Centre for Inflammatory Diseases; Monash University; Clayton Vic. Australia
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17
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Macklin PS, Morris PJ, Knight SR. A systematic review of the use of rituximab for the treatment of antibody-mediated renal transplant rejection. Transplant Rev (Orlando) 2017; 31:87-95. [DOI: 10.1016/j.trre.2017.01.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 01/13/2017] [Accepted: 01/16/2017] [Indexed: 01/27/2023]
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18
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Riella LV, Djamali A, Pascual J. Chronic allograft injury: Mechanisms and potential treatment targets. Transplant Rev (Orlando) 2017; 31:1-9. [DOI: 10.1016/j.trre.2016.10.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 10/05/2016] [Indexed: 01/05/2023]
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19
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Current outcomes of chronic active antibody mediated rejection - A large single center retrospective review using the updated BANFF 2013 criteria. Hum Immunol 2016; 77:346-52. [PMID: 26867813 DOI: 10.1016/j.humimm.2016.01.018] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND The updated BANFF 2013 criteria has enabled a more standardized and complete serologic and histopathologic diagnosis of chronic active antibody mediated rejection (cAMR). Little data exists on the outcomes of cAMR since the initiation of this updated criteria. METHODS 123 consecutive patients with biopsy proven cAMR (BANFF 2013) between 2006 and 2012 were identified. RESULTS Patients identified with cAMR were followed for a median of 9.5 (2.7-20.3) years after transplant and 4.3 (0-8.8) years after cAMR. Ninety-four (76%) recipients lost their grafts with a median survival of 1.9 years after diagnosis with cAMR. Mean C4d and allograft glomerulopathy scores were 2.6 ± 0.7 and 2.2 ± 0.8, respectively. 53.2% had class II DSA, 32.2% had both class I and II, and 14.5% had class I DSA only. Chronicity score >8 (HR 2.9, 95% CI 1-8.4, p=0.05), DSA >2500 MFI (HR 2.8, 95% CI 1.1-6.8, p=0.03), Scr >3mg/dL (HR 3.2, 95% CI 1.6-6.3, p=0.001) and UPC >1g/g (HR 2.5, 95% CI 1.4-4.5, p=0.003) were associated with a higher risk of graft loss. CONCLUSIONS cAMR was associated with poor graft survival after diagnosis. Improved therapies and earlier detection strategies are likely needed to improve outcomes of cAMR in kidney transplant recipients.
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20
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Kim HS, Kim JY, Kang EJ, Choi YS, Kim JI, Moon IS, Choi BS, Park CW, Yang CW, Kim YS, Chung BH. Immunologic and non-immunologic complications of a third kidney transplantation. Korean J Intern Med 2015; 30:657-64. [PMID: 26354060 PMCID: PMC4578029 DOI: 10.3904/kjim.2015.30.5.657] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/15/2014] [Accepted: 07/28/2014] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND/AIMS Patients who undergo repeat kidney transplantations (KTs) are considered at high risk for experiencing immunologic and non-immunologic complications. In this study, we investigated the clinical outcomes, including medical and surgical complications, of patients who underwent a third KT at our center. METHODS Between March 1969 and December 2012, a total of 2,110 KTs were performed at the Seoul St. Mary's Hospital. Of them, we examined 11 patients who underwent a third KT, and investigated the allograft outcomes and complication rates. RESULTS The mean follow-up duration after KT was 72.4 ± 78.3 months. The mean age at KT was 38.2 ± 8.0 years, and seven patients (63.6%) were males. Nine patients (81.8%) underwent living-donor KT. A cross-match test yielded positive results in four of the nine patients, and all underwent pretransplant desensitization therapy. After KT, three patients (27.2%) showed delayed graft function. Acute rejection developed in four patients (36.4%), and surgical complications that required surgical correction occurred in three patients. Allograft failure developed due to acute rejection (n = 3) or chronic rejection (n = 1) in four patients. Allograft survival rates at 1, 5, and 10 years were 81.8%, 42.9%, and 42.9%, respectively; however, the allograft survival rate at 5 years was > 80% in patients who underwent KT only after results of the panel reactive antibody test became available. CONCLUSIONS Thus, a third KT procedure may be acceptable, although aggressive pretransplant immune monitoring and patient selection may be required to reduce the risks of acute rejection and surgical complications.
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Affiliation(s)
- Hyun Seon Kim
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Jae Young Kim
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Eun Jin Kang
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Yoon Seok Choi
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Ji-Il Kim
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Department of Surgery, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - In Sung Moon
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Department of Surgery, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Bum Soon Choi
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Cheol Whee Park
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Chul Woo Yang
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Yong-Soo Kim
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Byung Ha Chung
- Transplant Research Center, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
- Correspondence to Byung Ha Chung, M.D. Division of Nephrology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea Tel: +82-2-2258-6066 Fax: +82-2-536-0323 E-mail:
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Abstract
PURPOSE OF REVIEW In the present review, we aim to describe the state of knowledge concerning antibody-mediated rejection (ABMR) spectrum and diagnosis criteria before analyzing the present and future promising leads regarding ABMR prognosis markers and treatment. RECENT FINDINGS Recent studies regarding complement-binding donor-specific antibodies and the molecular approach highlighted the unmet need for stratification tools for prognosis and treatment inside ABMR disease. SUMMARY ABMR is the leading cause of kidney allograft failure. The recent expansion of its spectrum is related to the paradigm of a continuous process, leading insidiously to a chronic form of ABMR and to the progressive acknowledgement of new entities (such as vascular ABMR, subclinical ABMR, C4d-negative ABMR). Considering the global picture of ABMR, the Banff classification gradually refined the diagnosis criteria so that it now describes a clinically relevant and coherent entity. Nevertheless, if the diagnosis mainly relies on conventional assessment, such as histological findings and circulating donor-specific antibodies, these criteria face serious limitations in terms of stratification of patients at risk of graft loss inside ABMR disease. Recently, new promising tools have emerged in order to identify long-term outcomes at the time of the diagnosis of rejection. In this regard, donor-specific antibodies' complement-fixing ability and the molecular approach contributed significantly. Currently, however, no clinically relevant surrogate marker of treatment efficiency is currently available.
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22
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Bachelet T, Nodimar C, Taupin JL, Lepreux S, Moreau K, Morel D, Guidicelli G, Couzi L, Merville P. Intravenous immunoglobulins and rituximab therapy for severe transplant glomerulopathy in chronic antibody-mediated rejection: a pilot study. Clin Transplant 2015; 29:439-46. [PMID: 25739833 DOI: 10.1111/ctr.12535] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2015] [Indexed: 12/28/2022]
Abstract
Outcome of patients with transplant glomerulopathy (TG) is poor. Using B-cell targeting molecules represent a rational strategy to treat TG during chronic antibody-mediated rejection. In this pilot study, 21 patients with this diagnosis received four doses of intravenous immunoglobulins and two doses of rituximab (IVIG/RTX group). They were retrospectively compared with a untreated control group of 10 patients. At 24 months post-biopsy, graft survival was similar and poor between the treated and the untreated group, 47% vs. 40%, respectively, p = 0.69. This absence of response of IVIG/RTX treatment was observed, regardless the phenotype of TG. Baseline estimated glomerular filtration rate (eGFR) and decline in eGFR during the first six months after the treatment were risk factors associated with 24-month graft survival. The IVIG/RTX therapy had a modest effect on the kinetics of donor-specific alloantibodies at M24, compared to the untreated group, not associated with an improvement in graft survival. The mean number of adverse events per patient was higher in the IVIG/RTX group than in the control group (p = 0.03). Taken together, IVIG/RTX treatment for severe TG during chronic antibody-mediated rejection does not seem to change the natural history of TG and is associated with a high incidence of adverse events.
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Affiliation(s)
- Thomas Bachelet
- Unité de Transplantation, Service de Néphrologie, Transplantation, Dialyse, CHU de Bordeaux, Bordeaux, France; UMR 5164, CNRS, Bordeaux, France; Université de Bordeaux, Bordeaux, France
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23
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Bestard O, Sarwal MM. Antibody-mediated rejection in young kidney transplant recipients: the dilemma of noncompliance and insufficient immunosuppression. Pediatr Nephrol 2015; 30:397-403. [PMID: 25503324 DOI: 10.1007/s00467-014-3020-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 11/09/2014] [Accepted: 11/10/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Antibody-mediated rejection (ABMR) is a recognized cause of late kidney allograft loss. Although ABMR may occur despite appropriate chronic immunosuppressive therapy, non-adherence both facilitates and accelerates the activation of the effector phase of the humoral immune response against the donor tissue, leading in turn to progressive kidney allograft rejection. Given the poor efficacy of rescue therapies for both acute and chronic late ABMR, establishing appropriate preventive strategies at different times before and after transplantation is a critical management goal. CASE-DIAGNOSIS/TREATMENT In this report, we discuss the differential diagnoses and management of ABMR based on the clinical case report of a young kidney transplant recipient with progressive ABMR due to poor immunosuppressive adherence. In the absence of sensitive and specific non-invasive monitoring tools for alloimmune activation, the clinical dilemma in the management of the adolescent patient lies in differentiating between suboptimal prescribed immunosuppression and deliberate non-adherence to adequate immunosuppression dosing. Despite the advent of therapies to reduce ABMR injury, the graft is destined for untimely functional loss. CONCLUSIONS New biomarkers and tools for the accurate characterization of alloimmune risk before and after transplantation, and serial testing for de novo changes in circulating donor-specific alloantibodies, are urgently needed to support the delivery of optimized immunosuppression exposure.
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Affiliation(s)
- Oriol Bestard
- Renal Transplant Unit, Nephrology Department, Bellvitge University Hospital, IDIBELL, Barcelona, Spain,
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24
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Kwun J, Page E, Hong JJ, Gibby A, Yoon J, Farris AB, Villinger F, Knechtle S. Neutralizing BAFF/APRIL with atacicept prevents early DSA formation and AMR development in T cell depletion induced nonhuman primate AMR model. Am J Transplant 2015; 15:815-22. [PMID: 25675879 PMCID: PMC5504528 DOI: 10.1111/ajt.13045] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 09/24/2014] [Accepted: 09/28/2014] [Indexed: 01/25/2023]
Abstract
Depletional strategies directed toward achieving tolerance induction in organ transplantation have been associated with an increased incidence and risk of antibody-mediated rejection (AMR) and graft injury. Our clinical data suggest correlation of increased serum B cell activating factor/survival factor (BAFF) with increased risk of antibody-mediated rejection in alemtuzumab treated patients. In the present study, we tested the ability of BAFF blockade (TACI-Ig) in a nonhuman primate AMR model to prevent alloantibody production and prolong allograft survival. Three animals received the AMR inducing regimen (CD3-IT/alefacept/tacrolimus) with TACI-Ig (atacicept), compared to five control animals treated with the AMR inducing regimen only. TACI-Ig treatment lead to decreased levels of DSA in treated animals at 2 and 4 weeks posttransplantation (p < 0.05). In addition, peripheral B cell numbers were significantly lower at 6 weeks posttransplantation. However, it provided only a marginal increase in graft survival (59 ± 22 vs. 102 ± 47 days; p = 0.11). Histological analysis revealed a substantial reduction in findings typically associated with humoral rejection with atacicept treatment. More T cell rejection findings were observed with increased graft T cell infiltration in atacicept treatment, likely secondary to the graft prolongation. We show that BAFF/APRIL blockade using concomitant TACI-Ig treatment reduced the humoral portion of rejection in our depletion-induced preclinical AMR model.
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Affiliation(s)
- J. Kwun
- Department of Surgery, Emory Transplant Center, Emory University School of Medicine, Atlanta, GA
| | - E. Page
- Department of Surgery, Emory Transplant Center, Emory University School of Medicine, Atlanta, GA
| | - J. J. Hong
- Department of Pathology, Emory University School of Medicine, Atlanta, GA,Division of Pathology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - A. Gibby
- Department of Surgery, Emory Transplant Center, Emory University School of Medicine, Atlanta, GA
| | - J. Yoon
- Department of Surgery, Emory Transplant Center, Emory University School of Medicine, Atlanta, GA
| | - A. B. Farris
- Department of Pathology, Emory University School of Medicine, Atlanta, GA
| | - F. Villinger
- Department of Pathology, Emory University School of Medicine, Atlanta, GA,Division of Pathology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - S. Knechtle
- Department of Surgery, Emory Transplant Center, Emory University School of Medicine, Atlanta, GA,Corresponding author Stuart J. Knechtle,
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25
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Kahwaji J, Najjar R, Kancherla D, Villicana R, Peng A, Jordan S, Vo A, Haas M. Histopathologic features of transplant glomerulopathy associated with response to therapy with intravenous immune globulin and rituximab. Clin Transplant 2014; 28:546-53. [PMID: 24579925 DOI: 10.1111/ctr.12345] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2014] [Indexed: 01/11/2023]
Abstract
Transplant glomerulopathy (TG) is associated with poor long-term allograft survival and is often accompanied by microcirculation inflammation. Histopathologic scoring may inform prognosis and help guide therapy. We retrospectively assessed 33 patients with biopsy-proven TG. All biopsies were given a glomerulitis (g) and peritubular capillaritis (ptc) score. We determined allograft survival and serum creatinine stability in three different score groups: g < 2 and ≥ 2, ptc < 2 and ≥ 2, and (g + ptc) < 4 and ≥ 4. We assessed the impact of treatment with intravenous immune globulin (IVIG) and rituximab on outcomes. Graft survival and serum creatinine stability did not differ in each of the histopathologic score groups. Higher-score groups were associated with the presence of concomitant antibody-mediated rejection and were more likely to receive IVIG and rituximab. Treatment with IVIG and rituximab resulted in stability of serum creatinine within the higher-score groups, but not in the lower-score groups. Stabilization of serum creatinine was associated with an improvement in donor-specific antibody. Histopathologic scoring in kidney allograft biopsies with TG may help guide treatment. The combination of IVIG and rituximab appears to be beneficial in patients whose biopsies have moderate or severe microvascular injury.
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Affiliation(s)
- Joseph Kahwaji
- Kidney and Pancreas Transplant Program, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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26
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Djamali A, Kaufman DB, Ellis TM, Zhong W, Matas A, Samaniego M. Diagnosis and management of antibody-mediated rejection: current status and novel approaches. Am J Transplant 2014; 14:255-71. [PMID: 24401076 PMCID: PMC4285166 DOI: 10.1111/ajt.12589] [Citation(s) in RCA: 270] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 11/12/2013] [Indexed: 01/25/2023]
Abstract
Advances in multimodal immunotherapy have significantly reduced acute rejection rates and substantially improved 1-year graft survival following renal transplantation. However, long-term (10-year) survival rates have stagnated over the past decade. Recent studies indicate that antibody-mediated rejection (ABMR) is among the most important barriers to improving long-term outcomes. Improved understanding of the roles of acute and chronic ABMR has evolved in recent years following major progress in the technical ability to detect and quantify recipient anti-HLA antibody production. Additionally, new knowledge of the immunobiology of B cells and plasma cells that pertains to allograft rejection and tolerance has emerged. Still, questions regarding the classification of ABMR, the precision of diagnostic approaches, and the efficacy of various strategies for managing affected patients abound. This review article provides an overview of current thinking and research surrounding the pathophysiology and diagnosis of ABMR, ABMR-related outcomes, ABMR prevention and treatment, as well as possible future directions in treatment.
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Affiliation(s)
- A Djamali
- Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public HealthMadison, WI
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public HealthMadison, WI
| | - D B Kaufman
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public HealthMadison, WI
| | - T M Ellis
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public HealthMadison, WI
| | - W Zhong
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public HealthMadison, WI
- Pathology and Laboratory Services, William S. Middleton Memorial Veterans HospitalMadison, WI
| | - A Matas
- Division of Transplantation, Department of Surgery, University of MinnesotaMinneapolis, MN
| | - M Samaniego
- Division of Nephrology, Department of Medicine, University of MichiganAnn Arbor, MI
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27
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The effect of combination therapy with rituximab and intravenous immunoglobulin on the progression of chronic antibody mediated rejection in renal transplant recipients. J Immunol Res 2014; 2014:828732. [PMID: 24741626 PMCID: PMC3987969 DOI: 10.1155/2014/828732] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 10/28/2013] [Accepted: 11/11/2013] [Indexed: 12/18/2022] Open
Abstract
The treatment for chronic active antibody-mediated rejection (CAMR) remains controversial. We investigated the efficacy of rituximab (RTX) and intravenous immunoglobulin (IVIg) for CAMR. Eighteen patients with CAMR were treated with RTX (375 mg/m2) and IVIg (0.4 g/kg) for 4 days. The efficacy of RTX/IVIg combination therapy (RIT) was assessed by decline in estimated glomerular filtration rate per month (ΔeGFR) before and after RIT. Patients were divided into responder and nonresponder groups based on decrease and no decrease in ΔeGFR, respectively, and their clinical and histological characteristics were compared. Response rate to RIT was 66.7% (12/18), and overall ΔeGFR decreased significantly to 0.4 ± 1.7 mL·min−1·1.73 m−2 per month 6 months after RIT compared to that observed 6 months before RIT (1.8 ± 1.0, P < 0.05). Clinical and histological features between the 12 responders and the 6 nonresponders were not significantly different, but nonresponders had a significantly higher proteinuria levels at the time of RIT (2.5 ± 2.5 versus 7.0 ± 3.5 protein/creatinine (g/g), P < 0.001). The effect of the RIT on ΔeGFR had dissipated in all patients by 1 year post-RIT. Thus, RIT delayed CAMR progression, and baseline proteinuria level was a prognostic factor for response to RIT.
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28
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29
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Lipshultz SE, Chandar JJ, Rusconi PG, Fornoni A, Abitbol CL, Burke GW, Zilleruelo GE, Pham SM, Perez EE, Karnik R, Hunter JA, Dauphin DD, Wilkinson JD. Issues in solid-organ transplantation in children: translational research from bench to bedside. Clinics (Sao Paulo) 2014; 69 Suppl 1:55-72. [PMID: 24860861 PMCID: PMC3884162 DOI: 10.6061/clinics/2014(sup01)11] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
In this review, we identify important challenges facing physicians responsible for renal and cardiac transplantation in children based on a review of the contemporary medical literature. Regarding pediatric renal transplantation, we discuss the challenge of antibody-mediated rejection, focusing on both acute and chronic antibody-mediated rejection. We review new diagnostic approaches to antibody-mediated rejection, such as panel-reactive antibodies, donor-specific cross-matching, antibody assays, risk assessment and diagnosis of antibody-mediated rejection, the pathology of antibody-mediated rejection, the issue of ABO incompatibility in renal transplantation, new therapies for antibody-mediated rejection, inhibiting of residual antibodies, the suppression or depletion of B-cells, genetic approaches to treating acute antibody-mediated rejection, and identifying future translational research directions in kidney transplantation in children. Regarding pediatric cardiac transplantation, we discuss the mechanisms of cardiac transplant rejection, including the role of endomyocardial biopsy in detecting graft rejection and the role of biomarkers in detecting cardiac graft rejection, including biomarkers of inflammation, cardiomyocyte injury, or stress. We review cardiac allograft vasculopathy. We also address the role of genetic analyses, including genome-wide association studies, gene expression profiling using entities such as AlloMap®, and adenosine triphosphate release as a measure of immune function using the Cylex® ImmuKnow™ cell function assay. Finally, we identify future translational research directions in heart transplantation in children.
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Affiliation(s)
- Steven E Lipshultz
- Department of Pediatrics, Children's Hospital of Michigan, Wayne State University School of Medicine, Detroit, MI, United States
| | - Jayanthi J Chandar
- Division of Pediatric Nephrology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Paolo G Rusconi
- Division of Pediatric Cardiology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Alessia Fornoni
- Division of Pediatric Nephrology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Carolyn L Abitbol
- Division of Pediatric Nephrology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - George W Burke
- Division of Pediatric Nephrology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Gaston E Zilleruelo
- Division of Pediatric Nephrology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Si M Pham
- Artificial Heart Programs, Transplant Institute, Jackson Memorial Division of Heart/Lung Transplant, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Elena E Perez
- Division of Pediatric Immunology and Allergy, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Ruchika Karnik
- Division of Pediatric Cardiology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Juanita A Hunter
- Division of Pediatric Cardiology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Danielle D Dauphin
- Division of Pediatric Clinical Research, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - James D Wilkinson
- Division of Pediatric Clinical Research, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL, United States
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30
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Tanabe K, Inui M. Desensitization for prevention of chronic antibody-mediated rejection after kidney transplantation. Clin Transplant 2013; 27 Suppl 26:2-8. [DOI: 10.1111/ctr.12260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2013] [Indexed: 01/08/2023]
Affiliation(s)
- Kazunari Tanabe
- Department of Urology; Tokyo Women's Medical University; Tokyo Japan
| | - Masashi Inui
- Department of Urology; Tokyo Women's Medical University; Tokyo Japan
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31
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Late and chronic antibody-mediated rejection: main barrier to long term graft survival. Clin Dev Immunol 2013; 2013:859761. [PMID: 24222777 PMCID: PMC3816029 DOI: 10.1155/2013/859761] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 09/03/2013] [Indexed: 12/02/2022]
Abstract
Antibody-mediated rejection (AMR) is an important cause of graft loss after organ transplantation. It is caused by anti-donor-specific antibodies especially anti-HLA antibodies. C4d had been regarded as a diagnosis marker for AMR. Although most early AMR episodes can be successfully controlled or reversed, late and chronic AMR remains the leading cause of late graft loss. The strategies which work in early AMR have limited effect on late/chronic episodes. Here, we reviewed the lines of evidence that late/chronic AMR is the leading cause of late graft loss, characteristics of late AMR, and current strategies in managing late/chronic AMR. More effort should be put on the management of late/chronic AMR to make a better long term graft survival.
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