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Kanbay M, Copur S, Mizrak B, Mallamaci F, Zoccali C. Mineralocorticoid receptor antagonists in kidney transplantation. Eur J Clin Invest 2024; 54:e14206. [PMID: 38578116 DOI: 10.1111/eci.14206] [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: 02/05/2024] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND The fundamental role of the renin-angiotensin-aldosterone system in the pathophysiology of chronic kidney disease, congestive heart failure, hypertension and proteinuria is well established in pre-clinical and clinical studies. Mineralocorticoid receptor antagonists are among the primary options for renin-angiotensin-aldosterone system blockage, along with angiotensin-converting enzyme inhibitors and angiotensin receptor blockers. METHODS In this narrative review, we aim to evaluate the efficiency and safety of mineralocorticoid receptor antagonists in kidney transplant recipients, including the potential underlying pathophysiology. RESULTS The efficiency and safety of mineralocorticoid receptor antagonists in managing chronic kidney disease and proteinuria, either non-nephrotic or nephrotic range, have been demonstrated among nontransplanted patients, though studies investigating the role of mineralocorticoid receptor antagonists among kidney transplant recipients are scarce. Nevertheless, promising results have been reported in pre-clinical and clinical studies among kidney transplant recipients regarding the role of mineralocorticoid receptor antagonists in terms of ischaemia-reperfusion injury, proteinuria, or calcineurin inhibitor-mediated nephrotoxicity without considerable adverse events such as hypotension, hyperkalaemia or worsening renal functions. CONCLUSION Even though initial results regarding the role of mineralocorticoid receptor antagonist therapy for kidney transplant recipients are promising, there is clear need for large-scale randomized clinical trials with long-term follow-up data.
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Affiliation(s)
- Mehmet Kanbay
- Division of Nephrology, Department of Internal Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Sidar Copur
- Department of Internal Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Berk Mizrak
- Department of Internal Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Francesca Mallamaci
- Nephrology, Dialysis and Transplantation Unit Azienda Ospedaliera "Bianchi-Melacrino-Morelli" & CNR-IFC, Institute of Clinical Physiology, Research Unit of Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension of Reggio Calabria, Reggio Calabria, Italy
| | - Carmine Zoccali
- Renal Research Institute, New York, New York, USA
- Associazione Ipertensione Nefrologia Trapianto Renal (IPNET), Reggio Calabria, Italy
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2
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Iwahara N, Hotta K, Hirose T, Okada H, Shinohara N. Protocol biopsy of kidney allograft enables early detection of BK virus nephropathy to preserve kidney allograft function. Transpl Infect Dis 2024:e14338. [PMID: 38980934 DOI: 10.1111/tid.14338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 06/24/2024] [Accepted: 06/26/2024] [Indexed: 07/11/2024]
Abstract
BACKGROUND The Banff Working Group has updated the histological classification of BK virus nephropathy (BKVN), highlighting the importance of early detection. However, an early detection strategy for BKVN using biopsy has not yet been established. Our investigation aimed to assess the efficacy of protocol biopsy for the diagnosis of BKVN. METHODS We performed a retrospective cohort study of 314 patients who had undergone kidney transplantation between 2006 and 2021. Kidney allograft biopsies were performed as part of a protocol biopsy at 3 months and 1 year post-transplantation. Following the diagnosis of BKVN, the immunosuppressant dose was reduced. RESULTS Twelve patients (3.8%) were diagnosed with BKVN by biopsy. Most diagnoses are established during the early stages of BKVN (polyomavirus nephropathy class 1 in six, class 2 in five, and class 3 in one). Following the reduction in immunosuppressant dose, kidney allograft function did not deteriorate in any patients. Additionally, test for BK virus DNA in the blood was negative. All but one patient demonstrated histological resolution of BKVN, and the other had a very slight positivity for the simian virus 40 large T antigen. The median follow-up time after BKVN diagnosis was 6 years. One patient developed de novo donor-specific antibody and subclinical acute antibody-mediated rejection that was successfully cured. CONCLUSIONS Our analysis indicates that protocol biopsy may enable the early detection of BKVN, resulting in the preservation of kidney function.
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Affiliation(s)
- Naoya Iwahara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - Kiyohiko Hotta
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - Takayuki Hirose
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - Hiromi Okada
- Department of Surgical Pathology, Hokkaido University Hospital, Sapporo, Japan
| | - Nobuo Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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3
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Sato Y, Noguchi H, Kubo S, Kaku K, Okabe Y, Onishi H, Nakamura M. Modulation of allograft immune responses by Porphyromonas gingivalis lipopolysaccharide administration in a rat model of kidney transplantation. Sci Rep 2024; 14:13969. [PMID: 38886503 PMCID: PMC11183068 DOI: 10.1038/s41598-024-64771-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 06/12/2024] [Indexed: 06/20/2024] Open
Abstract
Periodontitis is a chronic inflammatory disease that affects the periodontal tissues. Although it is associated with various systemic diseases, the impact of periodontitis on kidney transplantation (KT) outcomes, particularly allograft rejection, remains unclear. This study investigated the effect of periodontitis on transplant immunity, specifically examining Porphyromonas gingivalis-derived lipopolysaccharide (LPS-PG). In vitro experiments revealed that LPS-PG increased regulatory T cells (Tregs) in Lewis rat spleen cells. In a mixed lymphocyte reaction assay, concentrations of interferon-γ, indicative of alloreactivity, were lower than in controls when LPS-PG was added to the culture and when LPS-PG-administered Lewis rat spleen cells were used as responders. In a rat KT model, LPS-PG administration to recipients promoted mild tubulitis and low serum creatinine and blood urea nitrogen levels 5 days post-KT compared with PBS-administered controls. Furthermore, LPS-PG-administered recipients had an elevated Treg proportion in their peripheral blood and spleen cells, and increased infiltrating Tregs in kidney allografts, compared with controls. The elevated Treg proportion in peripheral blood and spleen cells had a significant negative correlation with serum creatinine, suggesting elevated Tregs modulated allograft rejection. These findings suggest that periodontitis might modulate alloimmune reactivity through LPS-PG and Tregs, offering insights to refine immunosuppressive strategies for KT recipients.
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Affiliation(s)
- Yu Sato
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroshi Noguchi
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shinsuke Kubo
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Keizo Kaku
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yasuhiro Okabe
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hideya Onishi
- Department of Cancer Therapy and Research, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masafumi Nakamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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4
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Ciancio G, Gaynor JJ, Guerra G, Tabbara MM, Roth D, Kupin W, Mattiazzi A, Moni L, Burke GW. Long-term effects of average calcineurin inhibitor trough levels (over time) on renal function in a prospectively followed cohort of 150 kidney transplant recipients. Clin Transl Sci 2023; 16:2382-2393. [PMID: 37817405 PMCID: PMC10651634 DOI: 10.1111/cts.13639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 10/12/2023] Open
Abstract
More favorable clinical outcomes with medium-term follow-up have been reported among kidney transplant recipients receiving maintenance therapy consisting of "reduced-tacrolimus (TAC) dosing," mycophenolate mofetil (MMF), and low-dose corticosteroids. However, it is not clear whether long-term maintenance therapy with reduced-calcineurin inhibitor (CNI) dosing still leads to reduced renal function. A prospectively followed cohort of 150 kidney transplant recipients randomized to receive TAC/sirolimus (SRL) versus TAC/MMF versus cyclosporine microemulsion (CSA)/SRL, plus low-dose maintenance corticosteroids, now has 20 years of post-transplant follow-up. Average CNI trough levels over time among patients who were still alive with functioning grafts at 60, 120, and 180 months post-transplant were determined and ranked from smallest-to-largest for both TAC and CSA. Stepwise linear regression was used to determine whether these ranked average trough levels were associated with the patient's estimated glomerular filtration rate (eGFR) at those times, particularly after controlling for other significant multivariable predictors. Experiencing biopsy-proven acute rejection (BPAR) and older donor age were the two most significant multivariable predictors of poorer eGFR at 60, 120, and 180 months post-transplant (p < 000001 and 0.000003 for older donor age at 60 and 120 months; p = 0.00008 and <0.000001 for previous BPAR at 60 and 120 months). Assignment to CSA also implied a significantly poorer eGFR (but with less magnitudes of effect) in multivariable analysis at 60 and 120 months (p = 0.01 and 0.002). Higher ranked average CNI trough levels had no association with eGFR at any timepoint in either univariable or multivariable analysis (p > 0.70). Long-term maintenance therapy with reduced-CNI dosing does not appear to cause reduced renal function.
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Affiliation(s)
- Gaetano Ciancio
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Department of SurgeryLeonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
| | - Jeffrey J. Gaynor
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Department of SurgeryLeonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
| | - Giselle Guerra
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Division of Nephrology, Department of Medicine, Leonard M. Miller School of MedicineUniversity of MiamiMiamiFloridaUSA
| | - Marina M. Tabbara
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
| | - David Roth
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Division of Nephrology, Department of Medicine, Leonard M. Miller School of MedicineUniversity of MiamiMiamiFloridaUSA
| | - Warren Kupin
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Division of Nephrology, Department of Medicine, Leonard M. Miller School of MedicineUniversity of MiamiMiamiFloridaUSA
| | - Adela Mattiazzi
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Division of Nephrology, Department of Medicine, Leonard M. Miller School of MedicineUniversity of MiamiMiamiFloridaUSA
| | - Lissett Moni
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Department of SurgeryLeonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
| | - George W. Burke
- Miami Transplant Institute, Leonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
- Department of SurgeryLeonard M. Miller School of Medicine, University of MiamiMiamiFloridaUSA
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Fiorentino M, Bagagli F, Deleonardis A, Stasi A, Franzin R, Conserva F, Infante B, Stallone G, Pontrelli P, Gesualdo L. Acute Kidney Injury in Kidney Transplant Patients in Intensive Care Unit: From Pathogenesis to Clinical Management. Biomedicines 2023; 11:1474. [PMID: 37239144 PMCID: PMC10216683 DOI: 10.3390/biomedicines11051474] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/05/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Kidney transplantation is the first-choice treatment for end-stage renal disease (ESRD). Kidney transplant recipients (KTRs) are at higher risk of experiencing a life-threatening event requiring intensive care unit (ICU) admission, mainly in the late post-transplant period (more than 6 months after transplantation). Urosepsis and bloodstream infections account for almost half of ICU admissions in this population; in addition, potential side effects related to immunosuppressive treatment should be accounted for cytotoxic and ischemic changes induced by calcineurin inhibitor (CNI), sirolimus/CNI-induced thrombotic microangiopathy and posterior reversible encephalopathy syndrome. Throughout the ICU stay, Acute Kidney Injury (AKI) incidence is common and ranges from 10% to 80%, and up to 40% will require renal replacement therapy. In-hospital mortality can reach 30% and correlates with acute illness severity and admission diagnosis. Graft survival is subordinated to baseline estimated glomerular filtration rate (eGFR), clinical presentation, disease severity and potential drug nephrotoxicity. The present review aims to define the impact of AKI events on short- and long-term outcomes in KTRs, focusing on the epidemiologic data regarding AKI incidence in this subpopulation; the pathophysiological mechanisms underlying AKI development and potential AKI biomarkers in kidney transplantation, graft and patients' outcomes; the current diagnostic work up and management of AKI; and the modulation of immunosuppression in ICU-admitted KTRs.
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Affiliation(s)
- Marco Fiorentino
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
| | - Francesca Bagagli
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
| | - Annamaria Deleonardis
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
| | - Alessandra Stasi
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
| | - Rossana Franzin
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
| | - Francesca Conserva
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
| | - Barbara Infante
- Nephrology, Dialysis and Transplantation Unit, Department of Medical and Surgical Science, University of Foggia, 71122 Foggia, Italy
| | - Giovanni Stallone
- Nephrology, Dialysis and Transplantation Unit, Department of Medical and Surgical Science, University of Foggia, 71122 Foggia, Italy
| | - Paola Pontrelli
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
| | - Loreto Gesualdo
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70121 Bari, Italy; (M.F.)
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6
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Yu J, Wei X, Gao J, Wang C, Wei W. Role of cyclosporin A in the treatment of kidney disease and nephrotoxicity. Toxicology 2023; 492:153544. [PMID: 37164250 DOI: 10.1016/j.tox.2023.153544] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/12/2023]
Abstract
The clinical use of cyclosporin A (CsA) has led to significant advances and achievements in the field of transplantation and immune diseases. However, the nephrotoxicity of CsA is a major concern in current immunosuppression regimens. CsA causes abnormal kidney function while treating kidney disease, causing problems for clinicians and patients. Evidence of CsA nephrotoxicity is almost always present in transplant recipients after long-term CsA administration (up to 10 years), and similar phenomena occur with other calcineurin inhibitors. In this review, we summarize the mechanisms and influencing factors of CsA for the treatment of primary nephrotic syndrome. The mechanisms of CsA nephrotoxicity, clinical-pathological features, diagnosis, prevention strategies, and risk factors are summarized. We discuss the correlates and mechanisms of the switch between kidney disease prevention and nephrotoxicity of CsA to better understand the function of CsA in the kidney and to provide a basis for the prevention and treatment of CsA nephrotoxicity.
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Affiliation(s)
- Jun Yu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China
| | - Xiao Wei
- Department of Nephrology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China; Blood Purification Center, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Jinzhang Gao
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China
| | - Chun Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China.
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China.
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7
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Nascimento E, Filho AS, Lucas-Junior FDM, Jobim LFJ, Lasmar MF, Tavares-Filho HA, Fabreti-Oliveira RA. Remarkable 107-year-old kidney with a 49-year of long-term allograph survival through continuous azathioprine monotherapy. Transpl Immunol 2023; 78:101821. [PMID: 36921732 DOI: 10.1016/j.trim.2023.101821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/02/2023] [Accepted: 03/11/2023] [Indexed: 03/14/2023]
Abstract
BACKGROUND The main goal of kidney allograft transplantation is to improve survival in patients with end-stage kidney failure. Herein, we report a 49-year long-term allograft survival with non-identical human leukocyte antigens (HLA). The purpose of this study was to report the successful clinical outcome of 49 years of transplant survival in a 79-year-old patient with a 107-year-old kidney undergoing continued immunosuppressive monotherapy. MATERIAL AND METHODS The patient was evaluated clinically and immunologically with HLA typing and anti-HLA antibodies before transplantation. Post-transplant, the patient's clinical and immunological survival were monitored for 49 years. The state of the chimerism was assessed using the polymerase chain reaction to amplify 24 short tandem repeats using a DNA thermocycler and DNA analyzer. RESULTS The patient and donor were haploidentical and the patient was treated with azathioprine monotherapy. Donor-specific antibodies were detected only for the HLA-DPB1* 03:01 mismatch. This patient developed multiple skin tumors 26 years after transplant, which were successfully treated with topical therapy or surgical removal. The patient developed an intestinal adenocarcinoma 43 years after kidney transplantation, which was surgically removal; six years later, adenocarcinoma was diagnosed in a finger, followed by axillar and hepatic metastases. After 49 years of graft survival of a kidney of 107 years old in a patient with 79 years of age, the patient's health worsened with severe dehydration, anemia, and bacterial infection. The patient was hospitalized with a serum creatinine level of 3.45 mg/dL, urea level of 188 mg/dL, and estimated glomerular filtration rate of 22 mL/1.72 m2; septicemia developed and was treated with antibiotics. The patient had poor clinical progress, was intubated, and later died due to septic shock. CONCLUSIONS To the best of our knowledge, this is the first case of a 107-year-old kidney, transplanted into a recipient who was treated with azathioprine monotherapy for 49 years.
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Affiliation(s)
- Evaldo Nascimento
- Clinical Hospital, Kidney Transplant Unit, Belo Horizonte, MG, Brazil; Faculty of the Hospital Santa Casa, Belo Horizonte, MG, Brazil; IMUNOLAB - Laboratory of Transplant Immunology, Belo Horizonte, MG, Brazil.
| | | | | | - Luiz F J Jobim
- Clinical Hospital of Porto Alegre, Rio Grande do Sul, Brazil.
| | | | | | - Raquel A Fabreti-Oliveira
- IMUNOLAB - Laboratory of Transplant Immunology, Belo Horizonte, MG, Brazil; Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, MG, Brazil.
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8
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Bezstarosti S, Meziyerh S, Reinders MEJ, Voogt-Bakker K, Groeneweg KE, Roelen DL, Kers J, de Fijter JW, Heidt S. HLA-DQ eplet mismatch load may identify kidney transplant patients eligible for tacrolimus withdrawal without donor-specific antibody formation after mesenchymal stromal cell therapy. HLA 2023. [PMID: 36841928 DOI: 10.1111/tan.15008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/14/2023] [Accepted: 02/18/2023] [Indexed: 02/27/2023]
Abstract
Recently, the randomized phase-II Triton study demonstrated that mesenchymal stromal cell (MSC) therapy facilitated early tacrolimus withdrawal in living donor kidney transplant recipients. The current sub-study analyzed formation of de novo donor-specific HLA antibodies (dnDSA) in the context of the degree of HLA eplet mismatches. At the time of protocol biopsy at 6 months, 7/29 patients (24%) in the MSC group and 1/27 patient (3.7%) in the control group had developed dnDSA. In the MSC group, all dnDSA were anti-HLA-DQ; two patients had anti-DQ alone and five patients combined with anti-class I, HLA-DR or -DP. Despite excess dnDSA formation in the MSC-arm of the study, the evolution of eGFR (CKD-EPI) and proteinuria were comparable 2 years posttransplant. All dnDSA were complement-binding and three patients had antibody-mediated rejection in the protocol biopsy, but overall rejection episodes were not increased. Everolimus had to be discontinued in nine patients because of toxicity, and tacrolimus was reintroduced in six patients because of dnDSA formation. The HLA-DQ eplet mismatch load independently associated with dnDSA (adjusted hazard ratio = 1.07 per eplet mismatch, p = 0.008). A threshold of ≥11 HLA-DQ eplet mismatches predicted subsequent dnDSA in all 11 patients in the MSC group, but specificity was low (44%). Further research is warranted to explore HLA molecular mismatch load as a biomarker to guide personalized maintenance immunosuppression in kidney transplantation.
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Affiliation(s)
- Suzanne Bezstarosti
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands.,Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Soufian Meziyerh
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands
| | - Marlies E J Reinders
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands
| | - Kim Voogt-Bakker
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Koen E Groeneweg
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands
| | - Dave L Roelen
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jesper Kers
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands.,Department of Pathology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Johan W de Fijter
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, The Netherlands
| | - Sebastiaan Heidt
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands.,Eurotransplant Reference Laboratory, Leiden, The Netherlands
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9
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Hartigan CR, Tong KP, Liu D, Laurie SJ, Ford ML. TIGIT agonism alleviates costimulation blockade-resistant rejection in a regulatory T cell-dependent manner. Am J Transplant 2023; 23:180-189. [PMID: 36695691 PMCID: PMC10062175 DOI: 10.1016/j.ajt.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 10/16/2022] [Indexed: 01/15/2023]
Abstract
Belatacept-based immunosuppression in kidney transplantation confers fewer off-target toxicities than calcineurin inhibitors but comes at a cost of increased incidence and severity of acute rejection, potentially due to its deleterious effect on both the number and function of Foxp3+ regulatory T cells (Tregs). TIGIT is a CD28 family coinhibitory receptor expressed on several subsets of immune cells including Tregs. We hypothesized that coinhibition through TIGIT signaling could function to ameliorate costimulation blockade-resistant rejection. The results demonstrate that treatment with an agonistic anti-TIGIT antibody, when combined with costimulation blockade by CTLA-4Ig, can prolong allograft survival in a murine skin graft model compared with CTLA-4Ig alone. Further, this prolongation of graft survival is accompanied by an increase in the frequency and number of graft-infiltrating Tregs and a concomitant reduction in the number of CD8+ T cells in the graft. Through the use of Treg-specific TIGIT conditional knockout animals, we demonstrated that the TIGIT-mediated reduction in the graft-infiltrating CD8+ T cell response is dependent on signaling of TIGIT on Foxp3+ Tregs. Our results highlight both the key functional role of TIGIT on Foxp3+ Tregs under conditions in which CTLA-4 is blocked and the therapeutic potential of TIGIT agonism to optimize costimulation blockade-based immunosuppression.
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Affiliation(s)
- Christina R Hartigan
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Katherine P Tong
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Danya Liu
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Sonia J Laurie
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322
| | - Mandy L Ford
- Department of Surgery and Emory Transplant Center, Suite 5105, 101 Woodruff Circle, Atlanta, Georgia 30322.
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10
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Knops N, Ramazani Y, De Loor H, Goldschmeding R, Nguyen TQ, van den Heuvel LP, Levtchenko E, Kuypers DJ. Tacrolimus induces a pro-fibrotic response in donor-derived human proximal tubule cells dependent on common variants of the CYP3A5 and ABCB1 genes. Nephrol Dial Transplant 2022; 38:599-609. [PMID: 35945682 PMCID: PMC9976759 DOI: 10.1093/ndt/gfac237] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Common genetic variants of the enzymes and efflux pump involved in tacrolimus disposition have been associated with calcineurin inhibitor nephrotoxicity, but their importance is unclear because of the multifactorial background of renal fibrosis. This study explores the pro-fibrotic response of tacrolimus exposure in relation to the differential capacity for tacrolimus metabolism in proximal tubule cells (PTCs) with a variable (pharmaco)genetic background. METHODS PTCs were obtained from protocol allograft biopsies with different combinations of CYP3A5 and ABCB1 variants and were incubated with tacrolimus within the concentration range found in vivo. Gene and protein expression, CYP3A5 and P-glycoprotein function, and tacrolimus metabolites were measured in PTC. Connective tissue growth factor (CTGF) expression was assessed in protocol biopsies of kidney allograft recipients. RESULTS PTCs produce CTGF in response to escalating tacrolimus exposure, which is approximately 2-fold higher in cells with the CYP3A5*1 and ABCB1 TT combination in vitro. Increasing tacrolimus exposure results in relative higher generation of the main tacrolimus metabolite {13-O-desmethyl tacrolimus [M1]} in cells with this same genetic background. Protocol biopsies show a larger increase in in vivo CTGF tissue expression over time in TT vs. CC/CT but was not affected by the CYP3A5 genotype. CONCLUSIONS Tacrolimus exposure induces a pro-fibrotic response in a PTC model in function of the donor pharmacogenetic background associated with tacrolimus metabolism. This finding provides a mechanistic insight into the nephrotoxicity associated with tacrolimus treatment and offers opportunities for a tailored immunosuppressive treatment.
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Affiliation(s)
| | | | - Henriëtte De Loor
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
| | - Roel Goldschmeding
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tri Q Nguyen
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Lambert P van den Heuvel
- Laboratory of Pediatric Nephrology, Department of Growth and Regeneration, University of Leuven, Leuven, Belgium,Translational Metabolic Laboratory and Department of Pediatric Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Elena Levtchenko
- Department of Pediatric Nephrology and Solid Organ Transplantation, UZ Leuven, University Hospitals Leuven, Leuven, Belgium,Laboratory of Pediatric Nephrology, Department of Growth and Regeneration, University of Leuven, Leuven, Belgium
| | - Dirk J Kuypers
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
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11
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Immunosuppressive drugs and associated complications in abdominal organ transplantation. Curr Opin Crit Care 2022; 28:208-215. [PMID: 35142726 DOI: 10.1097/mcc.0000000000000927] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Intensive care management of patients who have undergone organ transplantation of liver, small bowel, pancreas, and/or kidney requires a basic knowledge of immunosuppression principles and the management of immunosuppressive medications. This review highlights the core principles of immunosuppression management in abdominal organ transplantation with a focus on complications arising from immunosuppressive drugs, both in the immediate postoperative period and in long-term usage. RECENT FINDINGS The general principles of management of immunosuppression in the abdominal organ transplant population have remained largely unchanged. Improvements in drug monitoring coupled with improvements in knowledge of pathways involved in allograft rejection have further refined immunosuppressive therapy. Infectious and central nervous system complications remain prevalent and are common complications of immunosuppressive drug therapy. SUMMARY For the intensive care professional who cares for abdominal organ transplant recipients, a foundational knowledge of the core principles of immunosuppression management is essential. In addition, an understanding of the common immunosuppressive drug regimens and the complications associated with these regimens is required for optimal management, risk assessment, and outcomes.
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12
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Effect of MMF Immunosuppression Based on CNI Reduction on CNI-Related Renal Damage after Lung Transplantation. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:8099684. [PMID: 35126949 PMCID: PMC8808151 DOI: 10.1155/2022/8099684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/14/2021] [Accepted: 12/30/2021] [Indexed: 01/31/2023]
Abstract
In this paper, numerous effects of immunosuppressive regimen of mycophenolate mofetil (MMF) on CNI-related renal damage after lung transplantation are evaluated thoroughly. For this purpose, 110 lung transplant recipients who were treated in our hospital from March 2016 to January 2018 were randomly selected. All patients took prednisone acetate tablets or rapamycin at the same time or not at the same time. MMF is 1 g every time, twice a day, and adjusted according to the re-examination. According to the different drugs taken by 110 patients, they were divided into cyclosporine A group and tacrolimus group. Among them, 92 patients in cyclosporine A group took cyclosporine A; 18 patients in tacrolimus group took tacrolimus. The clinical data of age and gender of the two groups were collected, To observe and compare the occurrence of CNI-related renal damage in lung transplant recipients and different immunosuppressants. The CNI dosage of tacrolimus group and cyclosporine A group was compared before and after MMF. The changes of serum creatinine level and serum creatinine clearance rate were measured before MMF administration and 30, 60, and 90 days after MMF administration, to observe the complications of CNI-related renal damage after lung transplantation. Experimental results showed that there were 16 cases (14.55%) of CNI-related renal damage in lung transplant recipients and different immunosuppressants, including 10 cases (11.36%) in males, 6 cases (27.27%) in females, 11 cases (12.09%) in tacrolimus group, and 5 cases (26.32%) in cyclosporine A group. There was no significant difference between the two groups (P > 0.05). Compared with MMF before and after administration, CNI dosage of cyclosporine A group and tacrolimus group decreased significantly (P < 0.01). Compared with MMF before administration, serum creatinine level decreased and serum creatinine clearance rate increased significantly (P < 0.05). In the follow-up, 16 patients with CNI-related renal damage were found to be immune rejection before the adjustment of immunosuppression program, no complications such as immune rejection, myelosuppression, and infection occurred within 15 months after the adjustment of immunosuppression program, blood glucose increased in 3 patients within 2 years after operation, blood lipid increased in 1 patient, urea increased in 1 patient, and uric acid increased in 1 patient. MMF immunosuppressive therapy based on CNI reduction is a safe and effective immunosuppressive therapy, which can significantly reduce immune rejection, improve renal function, and play an important role in improving CNI-related renal damage after lung transplantation.
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13
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Deger M, Kaya B, Akdogan N, Kaplan HM, Bagir E, Izol V, Aridogan IA. Protective effect of dapagliflozin against cyclosporine A-induced nephrotoxicity. Drug Chem Toxicol 2021; 45:2637-2643. [PMID: 34565275 DOI: 10.1080/01480545.2021.1979996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This study aimed to reveal the possible protective effect of dapagliflozin (DAPA) against acute kidney damage due to cyclosporine A (CsA). Thirty-two mice with an eight-week-old Balb\c albino strain were divided into four groups: control group, CsA group, DAPA group, and CsA + DAPA group. On day 9 of treatment, the animals were decapitated, and bilateral nephrectomy was performed. Oxidative stress and apoptosis were evaluated with caspase-3 activity, total oxidant status (TOS), total antioxidant status (TAS), malondialdehyde (MDA), myeloperoxidase (MPO), B-cell lymphoma-2 (Bcl-2), and Bcl-2-associated X protein (Bax) in the right kidney resection material. The left kidney resection material was evaluated histopathologically. CsA increased caspase-3 activity, Bax, TOS, MDA, TAS, and MPO levels, and the administration of DAPA with CsA significantly reduced this increase in levels (p < 0.001, p < 0.001, p < 0.001, p < 0.001, p < 0.001, and p < 0.001, respectively). CsA decreased Bcl-2 levels, and administration of CsA + DAPA significantly increased Bcl-2 levels compared with only CsA administration (p < 0.001). Additionally, administration of DAPA significantly reduced the histopathological findings (parenchymal inflammation, hyaline cast formation, vacuolization, and lysis of renal tubular cells) caused by CsA. DAPA reduces oxidative stress, apoptosis, and histopathological damage caused by CsA in renal tissue.
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Affiliation(s)
- Mutlu Deger
- Department of Urology, Faculty of Medicine, Çukurova University, Adana, Turkey
| | - Bulent Kaya
- Department of Nephrology, Faculty of Medicine, Çukurova University, Adana, Turkey
| | - Nebil Akdogan
- Department of Urology, Faculty of Medicine, Çukurova University, Adana, Turkey
| | - Halil Mahir Kaplan
- Department of Pharmacology, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Emine Bagir
- Department of Pathology, Faculty of Medicine, Çukurova University, Adana, Turkey
| | - Volkan Izol
- Department of Urology, Faculty of Medicine, Çukurova University, Adana, Turkey
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14
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Reinders MEJ, Groeneweg KE, Hendriks SH, Bank JR, Dreyer GJ, de Vries APJ, van Pel M, Roelofs H, Huurman VAL, Meij P, Moes DJAR, Fibbe WE, Claas FHJ, Roelen DL, van Kooten C, Kers J, Heidt S, Rabelink TJ, de Fijter JW. Autologous bone marrow-derived mesenchymal stromal cell therapy with early tacrolimus withdrawal: The randomized prospective, single-center, open-label TRITON study. Am J Transplant 2021; 21:3055-3065. [PMID: 33565206 PMCID: PMC8518640 DOI: 10.1111/ajt.16528] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 01/25/2023]
Abstract
After renal transplantation, there is a need for immunosuppressive regimens which effectively prevent allograft rejection, while preserving renal function and minimizing side effects. From this perspective, mesenchymal stromal cell (MSC) therapy is of interest. In this randomized prospective, single-center, open-label trial, we compared MSCs infused 6 and 7 weeks after renal transplantation and early tacrolimus withdrawal with a control tacrolimus group. Primary end point was quantitative evaluation of interstitial fibrosis in protocol biopsies at 4 and 24 weeks posttransplant. Secondary end points included acute rejection, graft loss, death, renal function, adverse events, and immunological responses. Seventy patients were randomly assigned of which 57 patients were included in the final analysis (29 MSC; 28 controls). Quantitative progression of fibrosis failed to show benefit in the MSC group and GFR remained stable in both groups. One acute rejection was documented (MSC group), while subclinical rejection in week 24 protocol biopsies occurred in seven patients (four MSC; three controls). In the MSC group, regulatory T cell numbers were significantly higher compared to controls (p = .014, week 24). In conclusion, early tacrolimus withdrawal with MSC therapy was safe and feasible without increased rejection and with preserved renal function. MSC therapy is a potentially useful approach after renal transplantation.
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Affiliation(s)
- Marlies E. J. Reinders
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Koen E. Groeneweg
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Sanne H. Hendriks
- Department of ImmunologyLeiden University Medical CenterLeidenthe Netherlands
| | - Jonna R. Bank
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Geertje J. Dreyer
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Aiko P. J. de Vries
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Melissa van Pel
- Department of ImmunologyLeiden University Medical CenterLeidenthe Netherlands,NECSTGENLeidenthe Netherlands
| | - Helene Roelofs
- Department of ImmunologyLeiden University Medical CenterLeidenthe Netherlands
| | - Volkert A. L. Huurman
- Department of Transplant Surgery and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Paula Meij
- Department of Clinical Pharmacy and ToxicologyLeiden University Medical CenterLeidenthe Netherlands
| | - Dirk J. A. R. Moes
- Department of Clinical Pharmacy and ToxicologyLeiden University Medical CenterLeidenthe Netherlands
| | - Willem E. Fibbe
- Department of ImmunologyLeiden University Medical CenterLeidenthe Netherlands
| | - Frans H. J. Claas
- Department of ImmunologyLeiden University Medical CenterLeidenthe Netherlands
| | - Dave L. Roelen
- Department of ImmunologyLeiden University Medical CenterLeidenthe Netherlands
| | - Cees van Kooten
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Jesper Kers
- Department of PathologyLeiden University Medical CenterLeidenthe Netherlands,Department of PathologyAmsterdam UMCUniversity of AmsterdamAmsterdamthe Netherlands,Van ‘t Hoff Institute for Molecular Sciences (HIMS)University of AmsterdamAmsterdamthe Netherlands
| | - Sebastiaan Heidt
- Department of ImmunologyLeiden University Medical CenterLeidenthe Netherlands
| | - Ton J. Rabelink
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
| | - Johan W. de Fijter
- Department of Internal Medicine (Nephrology) and Transplant CenterLeiden University Medical CenterLeidenthe Netherlands
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15
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Lee SG, Jeng LB, Saliba F, Singh Soin A, Lee WC, De Simone P, Nevens F, Suh KS, Fischer L, Jin Joo D, Fung J, Joh JW, Kaido T, Grant D, Meier M, Rauer B, Sips C, Kaneko S, Levy G. Efficacy and Safety of Everolimus With Reduced Tacrolimus in Liver Transplant Recipients: 24-month Results From the Pooled Analysis of 2 Randomized Controlled Trials. Transplantation 2021; 105:1564-1575. [PMID: 33741847 PMCID: PMC8221719 DOI: 10.1097/tp.0000000000003394] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 06/17/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND METHODS Data from 2 randomized liver transplant trials (N = 772; H2304 [deceased donor, n = 488], H2307 [living donor, n = 284]) were pooled to further evaluate the efficacy and safety of everolimus with reduced tacrolimus (EVR + rTAC) versus standard tacrolimus (sTAC) regimen at month 24. RESULTS EVR + rTAC was comparable to sTAC for composite efficacy failure of treated biopsy-proven acute rejection, graft loss, or death (9.8% versus 10.8%; difference, -1.0%; 95% confidence interval, -5.4 to 3.4; P = 0.641) at month 24. EVR + rTAC was superior to sTAC for the mean change in estimated glomerular filtration rate (eGFR) from randomization to month 24 (-8.37 versus -13.40 mL/min/1.73 m2; P = 0.001). A subanalysis of renal function by chronic kidney disease (CKD) stage at randomization showed significantly lower decline in eGFR from randomization to month 24 for patients with CKD stage 1/2 (eGFR ≥ 60 mL/min/1.73 m2) in EVR + rTAC group versus sTAC (-12.82 versus -17.67 mL/min/1.73 m2, P = 0.009). In patients transplanted for hepatocellular carcinoma (HCC) beyond Milan criteria, HCC recurrence was numerically lower although not statistically significant with EVR + rTAC versus sTAC group (5.9% [1 of 17] versus 23.1% [6 of 26], P = 0.215), while comparable in patients within Milan criteria (2.9% [3 of 102] versus 2.1% [2 of 96], P = 1.000), irrespective of pretransplant alpha-fetoprotein levels. CONCLUSIONS EVR + rTAC versus sTAC showed comparable efficacy and safety with significantly better renal function, particularly in patients with normal/mildly decreased renal function (CKD stage 1/2) at randomization and a trend toward lower HCC recurrence in patients transplanted with HCC beyond Milan at month 24. Further long-term data would be required to confirm these results.
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Affiliation(s)
- Sung-Gyu Lee
- Asan Medical Center, Ulsan University College of Medicine, Seoul, Republic of Korea
| | | | - Faouzi Saliba
- AP-HPHôpital Paul Brousse, Villejuif; Université Paris-Saclay, INSERM Unit 935, and 1193, France
| | | | - Wei-Chen Lee
- Chang Gung Memorial Hospital, Tao-Yuan, Lin-Ko, Taiwan
| | | | - Frederik Nevens
- University Hospital Gasthuisberg, KU Leuven, Leuven, Belgium
| | - Kyung-Suk Suh
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Lutz Fischer
- University Medical Center Eppendorf, Hamburg, Germany
| | - Dong Jin Joo
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - John Fung
- Cleveland Clinic Foundation, Cleveland, OH
| | - Jae-Won Joh
- Samsung Medical Center, Seoul, Republic of Korea
| | | | | | | | | | | | | | - Gary Levy
- University of Toronto, Toronto, Canada
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16
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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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17
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Li ZH, An N, Huang XJ, Yang C, Wu HL, Chen XC, Pan QJ, Liu HF. Cyclosporine A blocks autophagic flux in tubular epithelial cells by impairing TFEB-mediated lysosomal function. J Cell Mol Med 2021; 25:5729-5743. [PMID: 33949118 PMCID: PMC8184677 DOI: 10.1111/jcmm.16593] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 04/15/2021] [Indexed: 12/18/2022] Open
Abstract
Cyclosporine A (CsA) is an immunosuppressor widely used for the prevention of acute rejection during solid organ transplantation. However, severe nephrotoxicity has substantially limited its long‐term usage. Recently, an impaired autophagy pathway was suggested to be involved in the pathogenesis of chronic CsA nephrotoxicity. However, the underlying mechanisms of CsA‐induced autophagy blockade in tubular cells remain unclear. In the present study, we observed that CsA suppressed the activation and expression of transcription factor EB (TFEB) by increasing the activation of mTOR, in turn promoting lysosomal dysfunction and autophagy flux blockade in tubular epithelial cells (TECs) in vivo and in vitro. Restoration of TFEB activation by Torin1‐mediated mTOR inhibition significantly improved lysosomal function and rescued autophagy pathway activity, suppressing TEC injury. In summary, targeting TFEB‐mediated autophagy flux represents a potential therapeutic strategy for CsA‐induced nephrotoxicity.
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Affiliation(s)
- Zhi-Hang Li
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Ning An
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xi-Jie Huang
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Chen Yang
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hong-Luan Wu
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiao-Cui Chen
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Qing-Jun Pan
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hua-Feng Liu
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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18
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Safety and effectiveness of everolimus in maintenance kidney transplant patients in the real-world setting: results from a 2-year post-marketing surveillance study in Japan. Clin Exp Nephrol 2021; 25:660-673. [PMID: 33575935 PMCID: PMC8106613 DOI: 10.1007/s10157-021-02024-9] [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: 07/08/2020] [Accepted: 01/21/2021] [Indexed: 11/25/2022]
Abstract
Background Data on real-world use of everolimus (EVR) in Japanese maintenance kidney transplant (KTx) patients are limited. This post-marketing surveillance study was conducted to assess the safety and effectiveness of EVR, and identify factors affecting renal impairment. Methods Adult maintenance KTx patients were enrolled within 14 days of initiating EVR. Patient medical data were collected using electronic data capture case report forms at 6 months, 1, and 2 years after initiating EVR, or at discontinuation. Results All patients receiving EVR in Japan during the surveillance period were enrolled (N = 263). Mean time from transplantation to EVR initiation was 75.7 months. Decreased renal function (31.56%) was the primary reason for initiating EVR. In combination with EVR, the mean daily dose of tacrolimus and cyclosporine could be reduced to ~ 79 and ~ 64%, by 2 years, respectively. Incidences of serious adverse events and adverse drug reactions were 15.97 and 49.43%, respectively. Two-year graft survival rate was 95.82% and low in patients with baseline estimated glomerular filtration rate (eGFR; modification of diet in renal disease) < 30 mL/min/1.73 m2 (69.57%; P < 0.0001) and urinary protein/creatinine ratio (UPCR) ≥ 0.55 g/gCr (84.21%; P = 0.0206). Throughout the survey, mean eGFR values were stable (> 55 mL/min/1.73 m2). Renal impairment was influenced by patient and donor age, eGFR, and UPCR at baseline. Conclusions No new safety concerns for the use of EVR in adult maintenance KTx patients were identified. Early EVR initiation may be considered in these patients before renal function deterioration occurs. Supplementary Information The online version contains supplementary material available at 10.1007/s10157-021-02024-9.
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19
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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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20
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Sawada A, Okumi M, Horita S, Unagami K, Taneda S, Fuchinoue S, Ishida H, Hattori M, Tanabe K, Nitta K, Koike J, Nagashima Y, Shimizu A. Glomerular Neovascularization in Nondiabetic Renal Allograft Is Associated with Calcineurin Inhibitor Toxicity. Nephron Clin Pract 2020; 144 Suppl 1:37-42. [PMID: 33238276 DOI: 10.1159/000511452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/08/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Extra efferent arterioles, also known as polar vasculosis (PV), are often observed in the glomerular vascular pole and are associated with glomerular hypertrophy, indicating early recurrent diabetic kidney disease (DKD) in renal allografts. However, its significance in patients without diabetes remains uncertain. METHODS A total of 9,004 renal allograft biopsy specimens obtained between January 2007 and December 2017 at Tokyo Women's Medical University were retrospectively analyzed to examine the clinical and pathological significance of PV in renal allografts. PV was identified in 186 biopsy specimens obtained from 165 patients. The PV group comprised 46 patients; 35 patients without DKD and 11 patients with DKD as the initial cause of ESRD, whose clinical information was available and treated with the calcineurin inhibitor (CNI) tacrolimus. The non-PV group comprising patients with renal allografts matched for age and postoperative day included 93 patients without DKD and 16 patients with DKD as the initial cause of ESRD. RESULTS In patients with nondiabetic renal allografts, systolic blood pressure was significantly higher in the PV group than in the non-PV group. The trough tacrolimus levels during the overall study period and at 2 weeks, 1 month, and 2 years after transplantation were significantly higher in the PV group compared with the non-PV group. Glomerulomegaly was significantly more common. Moreover, ah and aah scores in Banff score were significantly higher in the PV group than in the non-PV group. In those with diabetic renal allografts, although the clinical parameters and tacrolimus trough levels in all time periods were not significantly different between the PV and non-PV groups, the ah score was significantly higher in the PV group. CONCLUSION PV was associated with CNI toxicity in nondiabetic but not in diabetic renal allografts. The pathogenesis of PV in renal allografts is considered to be multifactorial.
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Affiliation(s)
- Anri Sawada
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan, .,Department of Surgical Pathology, Tokyo Women's Medical University, Tokyo, Japan,
| | - Masayoshi Okumi
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Shigeru Horita
- Division of Clinical Pathology, Kidney Center, Tokyo Women's Medical University, Tokyo, Japan
| | - Kohei Unagami
- Department of Organ Transplant Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Sekiko Taneda
- Department of Pathology, Tokyo Women's Medical University, Tokyo, Japan
| | - Shohei Fuchinoue
- Department of Kidney Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hideki Ishida
- Department of Organ Transplant Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Motoshi Hattori
- Department of Pediatric Nephrology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazunari Tanabe
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kosaku Nitta
- Department of Nephrology, Tokyo Women's Medical University, Tokyo, Japan
| | - Junki Koike
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yoji Nagashima
- Department of Surgical Pathology, Tokyo Women's Medical University, Tokyo, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
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21
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Gupta G, Raynaud M, Kumar D, Sanghi P, Chang J, Kimball P, Kang L, Levy M, Sharma A, Bhati CS, Kamal L, Yakubu I, Massey HD, Kidd C, King AL, Halloran PF. Impact of belatacept conversion on kidney transplant function, histology, and gene expression - a single-center study. Transpl Int 2020; 33:1458-1471. [PMID: 32790889 DOI: 10.1111/tri.13718] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/28/2020] [Accepted: 08/07/2020] [Indexed: 11/28/2022]
Abstract
Prior studies on belatacept conversion from calcineurin inhibitor (CNI) have been limited by an absence of postconversion surveillance biopsies that could underestimate subclinical rejection, or a case-controlled design. A total of 53 adult patients with allograft dysfunction underwent belatacept conversion (median: 6 months) post-transplant. At a median follow-up = 2.5 years, patient survival was 94% with a death-censored graft survival of 85%. Seven (13%) patients had acute rejection (including 3 subclinical) at median 6 months postconversion. Overall, eGFR improved (P = <0.001) from baseline = 31±15 to 40.2 ± 17.6 ml/min/1.73m2 by 6 months postconversion, but then stayed stable. This improvement was also observed (P < 0.001) in comparison with a propensity matched control cohort on CNI, where eGFR stayed stable (mean ~ 32ml/min/1.72m2 ) over 2-year follow-up. Patients converted < 6 months post-transplant were more likely to have a long-term improvement in kidney function. Paired gene expression analysis of 30 (of 53) consecutive pre- and postconversion surveillance biopsies did not reveal changes in inflammation/acute injury; although atrophy-fibrosis score worsened (mean = 0.28 to 0.44; P = 0.005). Thus, improvement in renal function with belatacept conversion occurred early and then sustained in comparison with controls where renal function remained unchanged overtime. We were unable to show molecular signals that could be related to CNI administration and regressed after withdrawal.
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Affiliation(s)
- Gaurav Gupta
- Division of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
| | | | - Dhiren Kumar
- Division of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
| | - Pooja Sanghi
- Division of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
| | - Jessica Chang
- Alberta Transplant Applied Genomics Center, Edmonton, AB, Canada
| | - Pam Kimball
- Division of Transplant Surgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Le Kang
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA
| | - Marlon Levy
- Division of Transplant Surgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Amit Sharma
- Division of Transplant Surgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Chandra S Bhati
- Division of Transplant Surgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Layla Kamal
- Division of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
| | - Idris Yakubu
- Division of Transplant Surgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Hugh D Massey
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA
| | - Chelsea Kidd
- Department of Pathology, Virginia Commonwealth University, Richmond, VA, USA
| | - Anne L King
- Division of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
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22
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Yin S, Song T, Li X, Xu H, Zhang X, Jiang Y, Lin T. Non-linear Relationship between Tacrolimus Blood Concentration and Acute Rejection After Kidney Transplantation: A Systematic Review and Dose-Response Meta-Analysis of Cohort Studies. Curr Pharm Des 2020; 25:2394-2403. [PMID: 31333109 DOI: 10.2174/1381612825666190717101941] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 06/28/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Maintaining the exposure of tacrolimus (Tac) after kidney transplantation (KT) must be necessary to prevent acute rejection (AR) and improve graft survival,but there is still no clear consensus on the optimal Tac target blood concentration and concentration-effect relationship is poorly defined. METHODS We conducted a dose-response meta-analysis to quantitatively assess the association between Tac blood concentration and (AR) or adverse effects after KT. A comprehensive search of PubMed, Embase and Cochrane library databases was conducted to find eligible studies up to 10th September 2018. Unpublished data from patients receiving KT in West China Hospital (Sichuan University, China) were also collected. Both twostage dose-response and one-stage dose-response meta-analysis models were used to improve the statistical power. RESULTS A total of 4967 individuals from 10 original studies and 1453 individuals from West China Hospital were eligible for the ultimate analysis. In the two-stage dose-response meta-analysis model, we observed a significant non-linear relationship between Tac blood concentration and AR (P < 0.001) with moderate heterogeneity (I2 = 46.0%, P = 0.08). Tac blood concentration at 8ng/ml was associated with the lowest risk of AR (RR: 0.26, 95%CI: 0.13 - 0.54) by reference to 2ng/ml. Tac concentration at 7.0 - 11.0 ng/ml reduced the risk of AR by at least 70%, 5-14 ng/ml by at least 60%, and 4.5 - 14 ng/ml at least 50%. In the one-stage dose-response model, we also found a strong non-linear relationship between Tac and AR (P < 0.001) with moderate heterogeneity (I2 = 41.2%, P = 0.10). Tac concentration of 7.5 ng/ml was associated with the lowest risk of AR (RR: 0.35, 95%CI: 0.16 - 0.77). The blood concentration at 5.5 - 9.5 ng/ml was associated with the reduced AR by at least 60% and 4.5 - 10.5 ng/ml by at least 50% by reference to 2 ng/ml. CONCLUSION Maintaining Tac blood concentration at 5 - 9.5 ng/ml within the first year may prevent AR most effectively.
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Affiliation(s)
- Saifu Yin
- Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Organ transplantation Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Turun Song
- Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Organ transplantation Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xingxing Li
- West China Hospital/West China school of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Hanyue Xu
- West China Hospital/West China school of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Xueling Zhang
- West China Hospital/West China school of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Yamei Jiang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Organ transplantation Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Tao Lin
- Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Organ transplantation Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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23
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Honda S, Katsumata Y, Karasawa K, Yamanaka H, Harigai M. Management of End-stage Renal Disease Associated with Systemic Rheumatic Diseases. JMA J 2020; 3:20-28. [PMID: 33324772 PMCID: PMC7733740 DOI: 10.31662/jmaj.2019-0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 07/22/2019] [Indexed: 11/15/2022] Open
Abstract
The outcomes of rheumatic diseases (RDs) have improved over the past decades. However, a significant proportion of the patients still suffer from end-stage renal disease (ESRD) and have to bear the burden of hemodialysis. It is crucial to prevent patients with RDs from developing ESRD from viewpoints of medicine and medical economics. For those who already have ESRD, it is important to improve vial prognosis and quality of life through appropriate management of disease activity and comorbidities related to ESRD. Thus, rheumatologists and nephrologists need to recognize risk factors associated with progression to ESRD along with their appropriate management. Although the activity of most RDs tends to decrease after initiation of hemodialysis, disease activity may still increase, and recognizing how to appropriately use immunosuppressive agents even after the development of ESRD is crucial. The treatment of RDs needs extra attention as hydroxychloroquine requires more frequent monitoring for adverse drug reactions; therapeutic drug monitoring is necessary for mycophenolate mofetil, cyclosporine A, and tacrolimus; cyclophosphamide and azathioprine need dose adjustments; methotrexate and bucillamine are contraindicated in patients with ESRD; leflunomide and sulfasalazine do not require significant dose reduction and iguratimod should be carefully administered. The pharmacokinetics of biological agents such as rituximab or belimumab are not affected by ESRD, and dose adjustments are not necessary. Collaboration between rheumatologists and nephrologists is needed more than ever and is expected to produce a complementary effect and achieve better outcomes in clinical settings, although this cooperation has not always been conducted appropriately.
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Affiliation(s)
- Suguru Honda
- Department of Rheumatology, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Yasuhiro Katsumata
- Department of Rheumatology, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazunori Karasawa
- Department of Nephrology, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Hisashi Yamanaka
- Department of Rheumatology, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Masayoshi Harigai
- Department of Rheumatology, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
- Division of Epidemiology and Pharmacoepidemiology, Department of Rheumatology, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
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24
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Bang JB, Oh CK, Ju MK, Kim SJ, Yu HC, Lee SH. Clinical Study of Standard- vs Reduced-Dose Tacrolimus Combined With Generic Mycophenolate Mofetil in De Novo Kidney Transplantation: A Prospective Randomized Trial. Transplant Proc 2020; 52:133-139. [PMID: 31898939 DOI: 10.1016/j.transproceed.2019.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 11/10/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND The lowering of calcineurin inhibitor exposure is possibly considered as the proper strategy to prevent calcineurin inhibitor-induced nephrotoxicity in kidney transplant. This clinical study was designed to compare the efficacy and tolerability of reduced-dose tacrolimus with standard-dose mycophenolate mofetil (MMF) vs standard-dose tacrolimus with reduced-dose MMF. METHODS A prospective, multicenter, open-label, randomized, and parallel-group clinical trial was conducted at 4 transplant centers in Korea. A total sample size was 108, and eligible patients were randomly assigned in a 1:1 ratio to either reduced-dose tacrolimus with standard-dose MMF (the study group) or standard-dose tacrolimus with reduced-dose MMF (the control group) for 6 months in de novo kidney transplant recipients. Graft function, the incidence of efficacy failure, and adverse events were compared. RESULTS The mean estimated glomerular filtration rate at 6 months post-transplantation was 69.83 ± 16.68 mL/min/1.73 m2 in the study group and 69.92 ± 17.55 mL/min/1.73 m2 in the control group (P > .05). The overall incidence of biopsy-proven acute rejection was 3.64% (n = 2) in the study group, compared to 3.77% (n = 2) in the control group (P > .05). There was no graft loss, death, or loss of follow-up in either group. CONCLUSION In conclusion, the results suggest that tacrolimus minimization with standard-dose MMF provides adequate immunosuppression with proper renal function and similar rate of incidence of acute rejection compared with the regimen including standard-dose tacrolimus with reduced-dose MMF.
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Affiliation(s)
- Jun Bae Bang
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Chang-Kwon Oh
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Joo Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee Chul Yu
- Department of Surgery, Jeonbuk National University College of Medicine, Jeonju, Korea
| | - Su Hyung Lee
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea.
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25
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Farouk SS, Rein JL. The Many Faces of Calcineurin Inhibitor Toxicity-What the FK? Adv Chronic Kidney Dis 2020; 27:56-66. [PMID: 32147003 DOI: 10.1053/j.ackd.2019.08.006] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 08/01/2019] [Indexed: 02/07/2023]
Abstract
Calcineurin inhibitors (CNIs) are both the savior and Achilles' heel of kidney transplantation. Although CNIs have significantly reduced rates of acute rejection, their numerous toxicities can plague kidney transplant recipients. By 10 years, virtually all allografts will have evidence of CNI nephrotoxicity. CNIs have been strongly associated with hypertension, dyslipidemia, and new onset of diabetes after transplantation-significantly contributing to cardiovascular risk in the kidney transplant recipient. Multiple electrolyte derangements including hyperkalemia, hypomagnesemia, hypercalciuria, metabolic acidosis, and hyperuricemia may be challenging to manage for the clinician. Finally, CNI-associated tremor, gingival hyperplasia, and defects in hair growth can have a significant impact on the transplant recipient's quality of life. In this review, the authors briefly discuss the pharmacokinetics of CNI and discuss the numerous clinically relevant toxicities of commonly used CNIs, cyclosporine and tacrolimus.
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26
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Hiramitsu T, Tomosugi T, Futamura K, Okada M, Goto N, Ichimori T, Narumi S, Watarai Y. Optimal dose of everolimus administered with tacrolimus in living donor kidney transplantation. Int Immunopharmacol 2019; 75:105772. [PMID: 31376625 DOI: 10.1016/j.intimp.2019.105772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 07/11/2019] [Accepted: 07/18/2019] [Indexed: 01/05/2023]
Abstract
Everolimus (EVR) is often administered with cyclosporine A (CsA), according to an established protocol. Although the administration protocol of EVR with tacrolimus (TAC) has not been established, it has been clinically demonstrated that a higher dose of EVR is necessary when used in combination with TAC than with CsA. In this study, we aimed to determine the optimal dose of EVR administered with TAC to maintain a similar EVR level in the blood to that observed when EVR is administered with CsA. Between June 2009 and January 2016, 22 patients who underwent living donor kidney transplantation were enrolled in this study. Among them, 12 patients were administered steroids, basiliximab, CsA, and EVR (CsA + EVR group) and 10 were administered steroids, basiliximab, TAC, and EVR (TAC + EVR group). Blood samples were collected at different time points from patients in both CsA + EVR and TAC + EVR groups, after drug administration. The trough EVR level in both groups was maintained within 3-8 ng/mL during the perioperative period. The optimal EVR doses for both groups were estimated by using a population pharmacokinetic analysis. Overall, the optimal dose of EVR for the TAC + EVR group was 3.59-fold higher than that for the CsA + EVR group to maintain a similar trough level to that of the latter group. Thus, administration of a higher EVR dose is recommended when provided in combination with TAC than with CsA to prevent adverse events caused by under immunosuppression, that could lead to acute kidney rejection.
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Affiliation(s)
- Takahisa Hiramitsu
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
| | - Toshihide Tomosugi
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
| | - Kenta Futamura
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
| | - Manabu Okada
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
| | - Norihiko Goto
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
| | - Toshihiro Ichimori
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
| | - Shunji Narumi
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
| | - Yoshihiko Watarai
- Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, 466-8650 2-9 Myoken-cho, Showa-ku, Nagoya, Aichi, Japan.
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27
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Gottlieb J, Neurohr C, Müller‐Quernheim J, Wirtz H, Sill B, Wilkens H, Bessa V, Knosalla C, Porstner M, Capusan C, Strüber M. A randomized trial of everolimus-based quadruple therapy vs standard triple therapy early after lung transplantation. Am J Transplant 2019; 19:1759-1769. [PMID: 30615259 PMCID: PMC6590654 DOI: 10.1111/ajt.15251] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/04/2018] [Accepted: 12/27/2018] [Indexed: 01/25/2023]
Abstract
Calcineurin inhibitor (CNI) therapy after lung transplantation increases risk of kidney failure. Early everolimus-based quadruple low CNI immunosuppression may improve renal function without compromising efficacy or safety. A prospective, randomized, open-label, 12-month multicenter trial was conducted at 8 German sites. Patients 3-18 months after lung transplantation were randomized (1:1), stratified by baseline estimated glomerular filtration rate (eGFR). In the quadruple low CNI regimen, patients received everolimus (target trough level 3-5 ng/mL) with reduced CNI (tacrolimus 3-5 ng/mL or cyclosporine 25-75 ng/mL) and a cell cycle inhibitor plus prednisone. In the standard triple CNI regimen, patients received tacrolimus (target trough level >5 ng/mL) or cyclosporine (>100 ng/mL) and a cell cycle inhibitor plus prednisone. Of the 180 patients screened, 130 were randomized: 67 in the quadruple low CNI group and 63 in the standard triple CNI group. The primary endpoint (eGFR after 12 months) demonstrated superiority of the quadruple low CNI regimen: 64.5 mL/min vs 54.6 mL/min for the standard triple group (least squares mean, analysis of covariance; P < .001). Key efficacy parameters (biopsy-proven acute rejection, chronic lung allograft dysfunction, and death) and safety endpoints were similar between both groups. Quadruple low CNI immunosuppression early after lung transplantation was demonstrated to be efficacious and safe. Clinical trials registry: ClinicalTrials.gov NCT01404325.
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Affiliation(s)
- Jens Gottlieb
- Department of Respiratory MedicineHannover Medical SchoolHannoverGermany,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH)Member of the German Center for Lung Research (DZL)HannoverGermany
| | - Claus Neurohr
- Grosshadern Medical Clinic and Policlinic VLMU Munich University HospitalMunichGermany
| | | | - Hubert Wirtz
- Internal Medicine/Department of PneumologyLeipzig University HospitalLeipzigGermany
| | - Bjoern Sill
- Department of Cardiovascular SurgeryHamburg‐Eppendorf University HospitalHamburgGermany
| | - Heinrike Wilkens
- Internal Medicine VUniversity Hospital of SaarlandHomburg SaarGermany
| | - Vasiliki Bessa
- Department of PneumologyRuhrlandklinikWest German Center for Lung TransplantationUniversity Hospital EssenUniversity Duisburg‐EssenEssenGermany
| | - Christoph Knosalla
- Department of Cardiothoracic and Vascular SurgeryGerman Heart Institute BerlinDZHK (German Center for Cardiovascular Research)BerlinGermany
| | | | | | - Martin Strüber
- Department of Cardiothoracic SurgeryNewark Beth Israel Medical CenterChildren's Hospital of New JerseyNewarkNew Jersey
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28
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The footprints of mitochondrial impairment and cellular energy crisis in the pathogenesis of xenobiotics-induced nephrotoxicity, serum electrolytes imbalance, and Fanconi's syndrome: A comprehensive review. Toxicology 2019; 423:1-31. [PMID: 31095988 DOI: 10.1016/j.tox.2019.05.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/29/2019] [Accepted: 05/09/2019] [Indexed: 12/19/2022]
Abstract
Fanconi's Syndrome (FS) is a disorder characterized by impaired renal proximal tubule function. FS is associated with a vast defect in the renal reabsorption of several chemicals. Inherited and/or acquired conditions seem to be connected with FS. Several xenobiotics including many pharmaceuticals are capable of inducing FS and nephrotoxicity. Although the pathological state of FS is well described, the exact underlying etiology and cellular mechanism(s) of xenobiotics-induced nephrotoxicity, serum electrolytes imbalance, and FS are not elucidated. Constant and high dependence of the renal reabsorption process to energy (ATP) makes mitochondrial dysfunction as a pivotal mechanism which could be involved in the pathogenesis of FS. The current review focuses on the footprints of mitochondrial impairment in the etiology of xenobiotics-induced FS. Moreover, the importance of mitochondria protecting agents and their preventive/therapeutic capability against FS is highlighted. The information collected in this review may provide significant clues to new therapeutic interventions aimed at minimizing xenobiotics-induced renal injury, serum electrolytes imbalance, and FS.
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29
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Sumethkul K, Kitumnuaypong T, Angthararak S, Pichaiwong W. Low-dose cyclosporine for active lupus nephritis: a dose titration approach. Clin Rheumatol 2019; 38:2151-2159. [PMID: 30937637 DOI: 10.1007/s10067-019-04469-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 01/14/2019] [Accepted: 02/06/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Achievement of complete renal remission (CR) is an important goal in lupus nephritis (LN) treatment. The use of cyclosporine (CsA) for active LN has been challenged because of variations in CsA doses and reports of adverse reactions (AR). METHOD A cohort of 62 patients with active LN (induction-resistant LN and flared LN) who were treated with CsA was evaluated. CsA was started at 50 mg/day and titrated up 25 mg/day every 2-4 weeks until CR was achieved or until treatment termination because of AR. RESULTS The range of CsA dosage was 50-200 mg/day, and mean CsA dose was 102.8 ± 50.43 mg/day (1.73 ± 0.91 mg/kg/day). CsA plus mycophenolate mofetil and prednisolone was administered to 35.5% of patients, while the other 64.5% were treated with CsA and prednisolone. 90.32% had achieved CR and 4.84% had partial remission after 12 months of treatment. UPCR (urinary protein:creatinine ratio) decreased significantly in both groups (2.58 ± 3.37 to 0.36 ± 0.71 and 2.32 ± 1.45 to 0.29 ± 0.24 respectively) (P < 0.001). Non-renal activity including arthritis, alopecia, hematologic and cutaneous conditions improved in all patients. Patients whose prednisolone dose were increase received higher doses of prednisolone at baseline than patients who had stable prednisolone dose, but after 12 months the difference in dosage was insignificant (p = 0.58). CONCLUSION Patients with active LN can be effectively treated with low dose CsA, and the dose titration approach can lead to 90.32% CR with low AR rates. No difference in clinical response was observed among patients who received CsA plus prednisolone or CsA plus MMF and prednisolone.
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Affiliation(s)
- Kittiwan Sumethkul
- Rheumatology Unit, Department of Medicine, Rajavithi Hospital, College of Medicine, Rangsit University, Rajavithi Road, Bangkok, 10400, Thailand.
| | - Tasanee Kitumnuaypong
- Rheumatology Unit, Department of Medicine, Rajavithi Hospital, College of Medicine, Rangsit University, Rajavithi Road, Bangkok, 10400, Thailand
| | - Sungchai Angthararak
- Rheumatology Unit, Department of Medicine, Rajavithi Hospital, College of Medicine, Rangsit University, Rajavithi Road, Bangkok, 10400, Thailand
| | - Warangkana Pichaiwong
- Nephrology Unit, Department of Medicine, Rajavithi Hospital, College of Medicine, Rangsit University, Rajavithi Road, Bangkok, 10400, Thailand
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30
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Krezdorn N, Lian CG, Wells M, Wo L, Tasigiorgos S, Xu S, Borges TJ, Frierson RM, Stanek E, Riella LV, Pomahac B, Murphy GF. Chronic rejection of human face allografts. Am J Transplant 2019; 19:1168-1177. [PMID: 30312535 PMCID: PMC6433509 DOI: 10.1111/ajt.15143] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/14/2018] [Accepted: 09/23/2018] [Indexed: 01/25/2023]
Abstract
Face vascularized composite allografts (FVCAs) have helped patients with severe facial disfigurement, with acute rejection now largely controlled through iatrogenic immunosuppression. However, little is known regarding the incidence and mechanism(s) of more long-term pathologic alterations in FVCAs that may affect function and graft durability. Protocol surveillance biopsy specimens for up to an 8-year interval in 7 patients who received FVCAs at our institution revealed histopathologic evidence of chronic rejection. Clinical manifestations included features of premature aging, mottled leukoderma accentuating suture lines, telangiectasia, and dryness of nasal mucosa. Pathologic changes consisted of epidermal thinning accompanied by discrete foci of lymphocyte-mediated cytotoxicity, hyperkeratosis, follicular plugging, vascular ectasia, and sclerosis beneath the epidermal layer associated with collagen type I deposition. Genomic interrogation and immunohistochemistry of sclerotic zones revealed upregulation of the AP-1 pathway components, JunB and c-Fos, previously implicated in overproduction of type I dermal collagen in the setting of systemic sclerosis. We conclude that some patients develop chronic rejection in FVCAs with striking similarities to alterations seen in certain autoimmune cutaneous disorders (lupus erythematosus and scleroderma/chronic sclerodermoid graft-versus-host disease). Identification of relevant pathways and genes, such as JunB and c-Fos, may provide new targets for preventative therapies for chronic immune-mediated changes in vascularized composite allografts.
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Affiliation(s)
- Nicco Krezdorn
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, 02115 Boston, MA, USA,Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Christine G. Lian
- Program in Dermatopathology, Department of Pathology, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
| | - Michael Wells
- Program in Dermatopathology, Department of Pathology, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
| | - Luccie Wo
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, 02115 Boston, MA, USA
| | - Sotirios Tasigiorgos
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, 02115 Boston, MA, USA
| | - Shuyen Xu
- Program in Dermatopathology, Department of Pathology, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
| | - Thiago J. Borges
- Transplant Research Center, Renal Division, Department of Medicine, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
| | - Rayven M. Frierson
- Program in Dermatopathology, Department of Pathology, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
| | - Ewelina Stanek
- Program in Dermatopathology, Department of Pathology, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
| | - Leonardo V. Riella
- Transplant Research Center, Renal Division, Department of Medicine, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
| | - Bohdan Pomahac
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, 02115 Boston, MA, USA
| | - George F. Murphy
- Program in Dermatopathology, Department of Pathology, Brigham and Women’s Hospital, 75 Francis St, 02115 Boston, MA, USA
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31
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Sallustio BC, Noll BD, Coller JK, Tuke J, Russ G, Somogyi AA. Relationship between allograft cyclosporin concentrations and P-glycoprotein expression in the 1st month following renal transplantation. Br J Clin Pharmacol 2019; 85:1015-1020. [PMID: 30690767 DOI: 10.1111/bcp.13880] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/16/2019] [Accepted: 01/20/2019] [Indexed: 01/02/2023] Open
Abstract
The immunosuppressant cyclosporin is a P-glycoprotein (P-gp) substrate whose impaired function has been associated with an increased risk of cyclosporin-induced nephrotoxicity following renal transplantation. This study investigated the relationship between blood and allograft cyclosporin concentration, and the effect of P-gp expression. Fifty biopsy samples were obtained from 39 renal transplant recipients who received cyclosporin as part of maintenance immunosuppression. Blood cyclosporin concentrations (2 hours postdose) were obtained from clinical records, matching allograft cyclosporin concentrations were measured in frozen biopsy tissue by liquid chromatography-tandem mass spectrometry, and allograft P-gp expression was assessed by immunohistochemistry. Blood and allograft cyclosporin concentrations in the 1st month post-transplantation ranged from 505-2005 μg/L and 0.01-16.7 ng/mg tissue, respectively. Dose was the only significant predictor of allograft cyclosporin concentrations (adjusted R2 = .24, F-statistic = 11.52, P = .0019), with no effect of P-gp expression or blood cyclosporin concentrations. P-gp expression is not the major determinant of allograft cyclosporin concentrations.
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Affiliation(s)
- Benedetta C Sallustio
- Department of Clinical Pharmacology, Basil Hetzel Institute, The Queen Elizabeth Hospital, Woodville South, SA, 5011, Australia.,Discipline of Pharmacology, Adelaide Medical School, University of Adelaide, Adelaide, SA, 5000, Australia
| | - Benjamin D Noll
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Janet K Coller
- Discipline of Pharmacology, Adelaide Medical School, University of Adelaide, Adelaide, SA, 5000, Australia
| | - Jonathan Tuke
- ARC Centre for Excellence for Mathematical and Statistical Frontiers, School of Mathematical Sciences, Adelaide, SA, 5000, Australia.,School of Mathematical Sciences, Adelaide, SA, 5000, Australia
| | - Graeme Russ
- Central Northern Adelaide Renal and Transplantation Services, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
| | - Andrew A Somogyi
- Discipline of Pharmacology, Adelaide Medical School, University of Adelaide, Adelaide, SA, 5000, Australia
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32
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Manzia TM, Gazia C, Baiocchi L, Lenci I, Milana M, Santopaolo F, Angelico R, Tisone G. Clinical Operational Tolerance and Immunosuppression Minimization in Kidney Transplantation: Where Do We Stand? Rev Recent Clin Trials 2019; 14:189-202. [PMID: 30868959 DOI: 10.2174/1574887114666190313170205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 02/27/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The 20th century represents a breakthrough in the transplantation era, since the first kidney transplantation between identical twins was performed. This was the first case of tolerance, since the recipient did not need immunosuppression. However, as transplantation became possible, an immunosuppression-free status became the ultimate goal, since the first tolerance case was a clear exception from the hard reality nowadays represented by rejection. METHODS A plethora of studies was described over the past decades to understand the molecular mechanisms responsible for rejection. This review focuses on the most relevant studies found in the literature where renal tolerance cases are claimed. Contrasting, and at the same time, encouraging outcomes are herein discussed and a glimpse on the main renal biomarkers analyzed in this field is provided. RESULTS The activation of the immune system has been shown to play a central role in organ failure, but also it seems to induce a tolerance status when an allograft is performed, despite tolerance is still rare to register. Although there are still overwhelming challenges to overcome and various immune pathways remain arcane; the immunosuppression minimization might be more attainable than previously believed. CONCLUSION . Multiple biomarkers and tolerance mechanisms suspected to be involved in renal transplantation have been investigated to understand their real role, with still no clear answers on the topic. Thus, the actual knowledge provided necessarily leads to more in-depth investigations, although many questions in the past have been answered, there are still many issues on renal tolerance that need to be addressed.
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Affiliation(s)
- Tommaso Maria Manzia
- Transplant and Hepatobiliary Unit, Department of Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Carlo Gazia
- Transplant and Hepatobiliary Unit, Department of Surgery, University of Rome Tor Vergata, Rome, Italy
- Department of Surgery, Abdominal Organ Transplant Program, Wake Forest Baptist Medical Center, Winston Salem, NC, United States
- Wake Forest Institute for Regenerative Medicine, Department of Surgery, Winston-Salem, NC, United States
| | - Leonardo Baiocchi
- Hepatology and Liver Transplant Unit, University of Tor Vergata, Rome, Italy
| | - Ilaria Lenci
- Hepatology and Liver Transplant Unit, University of Tor Vergata, Rome, Italy
| | - Martina Milana
- Hepatology and Liver Transplant Unit, University of Tor Vergata, Rome, Italy
| | | | - Roberta Angelico
- Division of Abdominal Transplantation and Hepatobiliopancreatic Surgery, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Giuseppe Tisone
- Transplant and Hepatobiliary Unit, Department of Surgery, University of Rome Tor Vergata, Rome, Italy
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33
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Chancharoenthana W, Leelahavanichkul A, Wattanatorn S, Avihingsanon Y, Praditpornsilpa K, Eiam-Ong S, Townamchai N. Alteration of urinary neutrophil gelatinase-associated lipocalin as a predictor of tacrolimus-induced chronic renal allograft fibrosis in tacrolimus dose adjustments following kidney transplantation. PLoS One 2018; 13:e0209708. [PMID: 30576367 PMCID: PMC6303063 DOI: 10.1371/journal.pone.0209708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 12/10/2018] [Indexed: 01/05/2023] Open
Abstract
Despite tacrolimus (TAC) drug-level monitoring, TAC-induced chronic renal allograft fibrosis remains an important problem. This study investigated the potential of urinary neutrophil gelatinase–associated lipocalin (uNGAL) as a chronic renal allograft fibrosis biomarker in a two-phase study (proof of concept and cohort). In the proof of concept stage of the study, increased TAC-doses at 3 days after dose adjustment compared with the baseline were associated with elevated uNGAL (+ΔuNGAL) and urinary interleukin 18 (IL-18), but normal serum creatinine (SCr), despite the therapeutic trough levels of TAC. In the cohort study, the patients with elevated uNGAL post-recruitment in comparison with the baseline (+ΔuNGAL) was associated with the more severe renal allograft fibrosis from renal pathology of the protocol biopsy at 12 months post kidney transplantation (post-KT). A cut-off value of uNGAL ≥ 125.2 ng/mL during a 3, 6, 9 and 12 months post-KT was associated with a higher fibrosis score, with an area under the receiver operating characteristics curve of 0.80 (95% confidence interval [CI] 0.72 to 0.88, p < 0.0001) and a hazard ratio (HR) of 2.54 (95% CI 1.45 to 9.33; p < 0.001). We conclude that uNGAL is a sensitive biomarker of TAC induced subtle renal injury and TAC-induced chronic renal allograft fibrosis. We propose that uNGAL measurements, in addition to trough levels of TAC, should be used to predict TAC-induced chronic renal allograft fibrosis in the recipients of KT.
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Affiliation(s)
- Wiwat Chancharoenthana
- Division of Nephrology, Department of Medicine, Chulalongkorn University, Bangkok, Thailand
- Excellent Center of Organ Transplantation (ECOT), King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
- * E-mail:
| | - Asada Leelahavanichkul
- Immunology Unit, Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Salin Wattanatorn
- Division of Nephrology, Department of Medicine, Chulalongkorn University, Bangkok, Thailand
- Excellent Center of Organ Transplantation (ECOT), King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Yingyos Avihingsanon
- Division of Nephrology, Department of Medicine, Chulalongkorn University, Bangkok, Thailand
- Excellent Center of Organ Transplantation (ECOT), King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | | | - Somchai Eiam-Ong
- Division of Nephrology, Department of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Natavudh Townamchai
- Division of Nephrology, Department of Medicine, Chulalongkorn University, Bangkok, Thailand
- Excellent Center of Organ Transplantation (ECOT), King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
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34
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Pérez-Sáez MJ, Yu B, Uffing A, Murakami N, Borges TJ, Azzi J, El Haji S, Gabardi S, Riella LV. Conversion from tacrolimus to belatacept improves renal function in kidney transplant patients with chronic vascular lesions in allograft biopsy. Clin Kidney J 2018; 12:586-591. [PMID: 31384452 PMCID: PMC6671390 DOI: 10.1093/ckj/sfy115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Indexed: 01/05/2023] Open
Abstract
Background Conversion from tacrolimus to belatacept has been shown to be beneficial for an increasing number of kidney transplant (KT) patients. Predicting factors for favorable outcomes are still unknown. We aimed to investigate whether histological vascular lesions at the time of conversion might correlate with greater improvement in renal function post-conversion. Methods The study was conducted on a retrospective cohort of 34 KT patients converted from tacrolimus to belatacept. All patients underwent an allograft biopsy prior to conversion. We analyzed the evolution of the estimated glomerular filtration rate (eGFR) at 3 and 12 months after conversion. Results Median time to conversion was 6 (2–37.2) months post-transplant. About 52.9% of patients had moderate-to-severe chronic vascular lesions (cv2–3). We observed an increase in eGFR in the whole cohort from 35.4 to 41 mL/min/1.73 m2 at 3 months (P = 0.032) and 43.7 at 12 months (P = 0.013). Nine patients experienced acute rejection post-conversion, with one graft loss observed beyond the first year after conversion. Patients with cv2–3 had significant improvement in eGFR at 12 months (+8.6 mL/min/1.73 m2; 31.6 to 40.2 mL/min/1.73 m2; P = 0.047) compared with those without these lesions (+6.8 mL/min/1.73 m2; 40.9 to 47.7 mL/min/1.73 m2; P = 0.148). Conclusions Conversion from tacrolimus to belatacept has a beneficial effect in terms of renal function in KT patients. This benefit might be more significant in patients with cv in the biopsy.
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Affiliation(s)
- María José Pérez-Sáez
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA.,Department of Nephrology, Hospital del Mar, Barcelona, Spain
| | - Bryant Yu
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Audrey Uffing
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Naoka Murakami
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Thiago J Borges
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jamil Azzi
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sandra El Haji
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Steve Gabardi
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Leonardo V Riella
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
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35
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Pagonas N, Yusefi K, Seibert FS, Bauer F, Markakis K, Sasko B, Zidek W, Götze T, Schlattmann P, Viebahn R, Babel N, Westhoff TH. Effects of late cyclosporine withdrawal on renal graft function and survival. J Nephrol 2018; 32:315-321. [PMID: 30443763 DOI: 10.1007/s40620-018-0554-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 11/05/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Attempts to discontinue calcineurin inhibitors (CNIs) early after renal transplantation without conversion to an alternative immunosuppressive have failed due to high rates of acute rejection. Data on "late" CNI withdrawal are lacking so far. DESIGN AND METHOD We carried out a matched case-control study on the effects of CNI withdrawal on graft loss and mortality in 90 patients (1500 screened) with advanced graft dysfunction (serum creatinine > 3.5 mg/dl) and a cyclosporine-based triple immunosuppressive regimen at the Charité University Hospital, Berlin. RESULTS Cyclosporine was withdrawn at a mean of 54.0 ± 32.8 months post-transplant in 45 subjects. Whereas estimated glomerular filtration rate (eGFR) did not significantly differ between the groups at this time (12.4 ± 2.7 vs. 14.7 ± 8.9 in the control group, p = 0.08), it was significantly higher in subjects undergoing withdrawal after 120 months (Δ 4.1 ml/min; p < 0.001). In a Cox regression analysis adjusted for age, gender and eGFR, patients with CNI withdrawal showed better survival rates for the combined endpoint death/graft loss (hazard ratio, HR [95% confidence interval]: 0.19 [0.12-0.33], p = 0.001) compared to matched controls. The survival benefit was significant for the endpoints death (p = 0.01) and graft loss (p = 0.001). CONCLUSIONS CNI withdrawal was associated with improved survival rates in patients with advanced graft dysfunction in this retrospective analysis.
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Affiliation(s)
- Nikolaos Pagonas
- Medical Department I, University Hospital Marien Hospital Herne, Ruhr University Bochum, Hölkeskampring 40, 44625, Herne, Germany.,Department of Cardiology and Angiology, Medical University Brandenburg, Brandenburg, Germany
| | - Kourosh Yusefi
- Department of Nephrology, Charité-Campus Benjamin Franklin, Berlin, Germany
| | - Felix S Seibert
- Medical Department I, University Hospital Marien Hospital Herne, Ruhr University Bochum, Hölkeskampring 40, 44625, Herne, Germany
| | - Frederic Bauer
- Medical Department I, University Hospital Marien Hospital Herne, Ruhr University Bochum, Hölkeskampring 40, 44625, Herne, Germany
| | - Konstantinos Markakis
- Medical Department I, University Hospital Marien Hospital Herne, Ruhr University Bochum, Hölkeskampring 40, 44625, Herne, Germany
| | - Benjamin Sasko
- Medical Department I, University Hospital Marien Hospital Herne, Ruhr University Bochum, Hölkeskampring 40, 44625, Herne, Germany.,Department of Cardiology and Angiology, Medical University Brandenburg, Brandenburg, Germany
| | - Walter Zidek
- Department of Nephrology, Charité-Campus Benjamin Franklin, Berlin, Germany
| | - Theresa Götze
- Department of Medical Statistics, Informatics and Documentation, Jena University Hospital, Jena, Germany
| | - Peter Schlattmann
- Department of Medical Statistics, Informatics and Documentation, Jena University Hospital, Jena, Germany
| | - Richard Viebahn
- Department of Surgery, University Hospital Knappschaftskrankenhaus, Ruhr University Bochum, Bochum, Germany
| | - Nina Babel
- Medical Department I, University Hospital Marien Hospital Herne, Ruhr University Bochum, Hölkeskampring 40, 44625, Herne, Germany
| | - Timm H Westhoff
- Medical Department I, University Hospital Marien Hospital Herne, Ruhr University Bochum, Hölkeskampring 40, 44625, Herne, Germany.
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36
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Uchida J, Iwai T, Nakatani T. Introduction of everolimus in kidney transplant recipients at a late posttransplant stage. World J Transplant 2018; 8:150-155. [PMID: 30211023 PMCID: PMC6134274 DOI: 10.5500/wjt.v8.i5.150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/23/2018] [Accepted: 06/28/2018] [Indexed: 02/05/2023] Open
Abstract
This minireview focuses on the current knowledge about the introduction of everolimus (EVL), a mammalian target of rapamycin inhibitor, with calcineurin inhibitor (CNI) elimination or minimization in kidney transplant recipients at a late posttransplant stage. Within, we have summarized two major clinical trials, ASCERTAIN and APOLLO, and seven other retrospective or nonrandomized studies. In the open-label multicenter ASCERTAIN study, the estimated glomerular filtration rate (eGFR) at 24 mo after conversion was not significantly different between three groups-EVL with CNI elimination, CNI minimization and continued CNI unchanged-at a mean of 5.4 years after transplantation. However, recipients with baseline creatinine clearance higher than 50 mL/min had a greater increase in measured GFR after CNI elimination. In the open-label multicenter APOLLO study, adjusted eGFR within the on-treatment population was significantly higher in the EVL continuation group than in the CNI continuation group at 12 mo after conversion at a mean of 7 years posttransplantation. Other studies on recipients without adverse events and already having satisfactory renal function showed favorable graft function by EVL late-induction with CNI elimination or reduction. These studies showed that chronic allograft nephropathy, CNI nephrotoxicity, CNI arteriolopathy, cancer and viral infection (especially cytomegalovirus infection) may be good indications for late conversion to EVL.
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Affiliation(s)
- Junji Uchida
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Tomoaki Iwai
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Tatsuya Nakatani
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
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37
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Nakamura K, Oshima S, Maeda M, Morio H, Fukahori H, Nakanishi T, Tsujimoto S, Hirose J, Noto T, Hamakawa N, Inami M, Morokata T. Replacement of mycophenolate mofetil with a JAK inhibitor, AS2553627, in combination with low-dose tacrolimus, for renal allograft rejection in non-human primates. Int Immunopharmacol 2018; 64:201-207. [PMID: 30195818 DOI: 10.1016/j.intimp.2018.08.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 01/09/2023]
Abstract
In renal transplant patients, using mycophenolate mofetil (MMF) with calcineurin inhibitors (CNIs; cyclosporine and tacrolimus [TAC]) has led to a significant improvement in graft survival. However, reducing or withholding MMF due to its gastrointestinal adverse events increases rejection risk. CNI-sparing strategies are important to avoid CNI-related nephrotoxicity in clinical settings. Here, we investigated AS2553627, a JAK inhibitor replacing MMF in combination with a sub-therapeutic dose of TAC to treat allograft rejection in a monkey model. AS2553627 inhibited proliferation of IL-2 stimulated T cells with little species difference between monkeys and humans. In MMF monotherapy, oral administration of 20 or 40 mg/kg/day prolonged graft survival with median survival times (MSTs) of 16.5 days and 33 days, respectively, whereas untreated animals showed MST of 6 days. In MMF/TAC (1 mg/kg/day, p.o.) combination therapy, pharmacokinetic analysis indicated that MMF 20 mg/kg/day achieved the clinical target AUC0-24h and prolonged renal allograft survival, with MST of 24 days. Oral administration of AS2553627 0.24 mg/kg/day in combination with TAC significantly prolonged renal allograft survival to MST of >90 days with low plasma creatinine levels. Histopathological analysis revealed that acute T cell-mediated rejection events such as vasculitis and interstitial mononuclear cell infiltration were significantly inhibited in AS2553627/TAC-treated allografts compared with MMF/TAC-treated allografts. All AS2553627/TAC-treated monkeys surviving >90 days exhibited less interstitial fibrosis/tubular atrophy than monkeys in the MMF/TAC group. These results suggest that AS2553627 replacing MMF is an attractive CNI-sparing strategy to prevent renal allograft rejection.
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Affiliation(s)
- Koji Nakamura
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan.
| | - Shinsuke Oshima
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Masashi Maeda
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Hiroki Morio
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Hidehiko Fukahori
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Tomonori Nakanishi
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Susumu Tsujimoto
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Jun Hirose
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Takahisa Noto
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Nozomu Hamakawa
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Masamichi Inami
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
| | - Tatsuaki Morokata
- Drug Discovery Research, Astellas Pharma Inc., 21, Miyukigaoka, Tsukuba-shi, Ibaraki 305-8585, Japan
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38
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Effect of Cumulative Intravenous Voriconazole Dose on Renal Function in Hematological Patients. Antimicrob Agents Chemother 2018; 62:AAC.00507-18. [PMID: 29987145 DOI: 10.1128/aac.00507-18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 07/06/2018] [Indexed: 01/24/2023] Open
Abstract
Intravenous voriconazole (VRC) is formulated by the incorporation of sulfobutylether-β-cyclodextrin (SBECD), which may accumulate to adversely affect renal function. However, the effect of long-term use of intravenous VRC on renal function is unclear. Our retrospective analysis of data confirmed that worsening of renal function was significantly associated with a cumulative dose of intravenous VRC (≥400 mg/kg), suggesting that a higher cumulative dose of intravenous VRC is a risk factor for renal dysfunction.
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39
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Yu X, Ruan L, Qu Z, Cui Z, Zhang Y, Wang X, Meng L, Liu X, Wang F, Zhang Y, Liu G, Yang L. Low-dose cyclosporine in treatment of membranous nephropathy with nephrotic syndrome: effectiveness and renal safety. Ren Fail 2018; 39:688-697. [PMID: 28882100 PMCID: PMC6446165 DOI: 10.1080/0886022x.2017.1373130] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND To observe effectiveness and renal safety of long-term low-dose cyclosporine in idiopathic membranous nephropathy (IMN). METHODS Sixty-eight patients were enrolled in this prospective cohort study. Renal endpoint was defined as a decrease in eGFR ≥50% from baseline and a development of eGFR ≤60 ml/min/1.73m2. RESULTS A cyclosporine dose of 2.0 ± 0.5 mg/kg/d and a prednisone of 0.3 ± 0.2 mg/kg/d were prescribed. The duration of cyclosporine treatment was 27 (3-80) months. The overall remission rate was 91% with a relapse rate of 42%. Fourteen patients had cyclosporine-related acute renal injury (CsA-ARI) within the first three months, and 16 patients had cyclosporine related chronic renal injury (CsA-CRI) within the first year. At the end of follow-up (50 ± 18 months), 16 patients (24%) reached renal endpoint. Presence of intimal fibrosis of small artery and higher time-averaged proteinuria were identified as independent risk factors for renal endpoint. RAS inhibition treatment decreased the risk of poor renal outcome. Patients in CsA-ARI group had the highest proteinuria at the third month, the highest time-average proteinuria and the highest proportion of cases reaching renal endpoint. Patients with CsA-CRI were of the oldest age and with the lowest baseline eGFR. CONCLUSIONS Low-dose cyclosporine is effective in treating IMN. CsA-ARI and no response in proteinuria during the first three months of cyclosporine treatment had the lowest benefit/risk ratio, and these patients should be switched to non-calcineurin-inhibitor based regimen. Patients of older age, with lower baseline eGFR, or having intimal sclerosis of small artery, are more likely to develop progressive renal dysfunction.
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Affiliation(s)
- Xiaojuan Yu
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Lin Ruan
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China.,e Renal Division, Department of Medicine , First Municipal Hospital , Shijiazhuang , Hebei province , P.R. China
| | - Zhen Qu
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Zhao Cui
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Yimiao Zhang
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Xin Wang
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Liqiang Meng
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Xiaojing Liu
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Fang Wang
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Ying Zhang
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Gang Liu
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
| | - Li Yang
- a Renal Division, Department of Medicine , Peking University First Hospital , Beijing , P.R. China.,b Institute of Nephrology , Peking University , Beijing , P.R. China.,c Key laboratory of Renal Disease , Ministry of Health of China , Beijing , P.R. China.,d Key Laboratory of CKD Prevention and Treatment , Ministry of Education of China , Beijing , P.R. China
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Claus M, Herro R, Wolf D, Buscher K, Rudloff S, Huynh-Do U, Burkly L, Croft M, Sidler D. The TWEAK/Fn14 pathway is required for calcineurin inhibitor toxicity of the kidneys. Am J Transplant 2018; 18:1636-1645. [PMID: 29266762 DOI: 10.1111/ajt.14632] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 11/09/2017] [Accepted: 12/03/2017] [Indexed: 01/25/2023]
Abstract
Calcineurin inhibitor toxicity (CNT) is a frequent occurrence in transplanted renal grafts and autochthone kidneys from patients undergoing long-term treatment with calcineurin inhibitors, notably cyclosporin A (CsA) and tacrolimus. Here, we show an indispensable role of the tumor necrosis factor superfamily (TNFS) molecule TNF-related weak inducer of apoptosis (TWEAK) (TNFSF12) in the pathogenesis of acute CNT lesions in mice. A deficiency in TWEAK resulted in limited tubulotoxicity after CsA exposure, which correlated with diminished expression of inflammatory cytokines and reduced intraparenchymal infiltration with immune cells. We further identified tubular epithelial cells of the kidney as major targets of CsA activity and found that Fn14 (tumor necrosis factor receptor superfamily 12A), the receptor for TWEAK, is a highly CsA-inducible gene in these cells. Correlating with this, CsA pretreatment sensitized tubular epithelial cells specifically to the pro-inflammatory activities of recombinant TWEAK in vitro. Moreover, injection of rTWEAK alone into mice induced moderate disease similar to CsA, and rTWEAK combined with CsA resulted in synergistic nephrotoxicity. These findings support the importance of tubular epithelial cells as cellular targets of CsA toxicity and introduce TWEAK as a critical contributor to CNT pathogenesis.
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Affiliation(s)
- Meike Claus
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | - Rana Herro
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | - Dennis Wolf
- Inflammation Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | - Konrad Buscher
- Inflammation Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | - Stefan Rudloff
- Department for Nephrology, Hypertension and Clinical Pharmacology, University Hospital Bern, Bern, Switzerland
| | - Uyen Huynh-Do
- Department for Nephrology, Hypertension and Clinical Pharmacology, University Hospital Bern, Bern, Switzerland
| | - Linda Burkly
- Department of Immunology, Biogen, Cambridge, MA, USA
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | - Daniel Sidler
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA.,Department for Nephrology, Hypertension and Clinical Pharmacology, University Hospital Bern, Bern, Switzerland
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41
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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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Park S, Kim YS, Lee J, Huh W, Yang CW, Kim YL, Kim YH, Kim JK, Oh CK, Park SK. Reduced Tacrolimus Trough Level Is Reflected by Estimated Glomerular Filtration Rate (eGFR) Changes in Stable Renal Transplantation Recipients: Results of the OPTIMUM Phase 3 Randomized Controlled Study. Ann Transplant 2018; 23:401-411. [PMID: 29891834 PMCID: PMC6248010 DOI: 10.12659/aot.909036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background Minimizing the tacrolimus dosage in patients with stable allograft function needs further investigation. Material/Methods We performed an open-label, randomized, controlled study from 2010 to 2016 in 7 tertiary teaching hospitals in Korea and enrolled 345 kidney transplant recipients with a stable graft status. The study group received reduced-dose tacrolimus, 1080–1440 mg/day of enteric-coated mycophenolate sodium (EC-MPS), and corticosteroids. The control group received the standard tacrolimus dosage and 540–720 mg/day of EC-MPS with steroids. The primary endpoint was the mean estimated glomerular filtration rate (eGFR) and change in the eGFR at 12 months after randomization. Results The mean tacrolimus trough level of the study group was 4.51±1.62 ng/mL, which was lower than that of the control group, at 6.75±2.82 ng/mL (P<0.001). The primary endpoint was better in the study group in terms of change in eGFR (P<0.001). The month 12 eGFRs were 73.6±28.4 and 68.3±18.1 mL/min/1.73 m2 in the study and the control groups, respectively, but the difference did not reach statistical significance (P=0.07). The incidence of adverse events was similar between the study and the control groups. Conclusions Minimizing tacrolimus to a trough level below 5 ng/mL combined with conventional EC-MPS can be considered in patients with a steady follow-up, as it was associated with small benefits in the changes of the eGFR (Clinicaltrials.gov number: NCT01159080).
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Affiliation(s)
- Sehoon Park
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Yon Su Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Jungpyo Lee
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Wooseong Huh
- Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Chul Woo Yang
- Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, South Korea
| | - Young-Lim Kim
- Department of Internal Medicine, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Yeong Hoon Kim
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Joong Kyung Kim
- Department of Internal Medicine, Bong Seng Memorial Hospital, Busan, South Korea
| | - Chang-Kwon Oh
- Department of Surgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, South Korea
| | - Su-Kil Park
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Jeng LB, Lee SG, Soin AS, Lee WC, Suh KS, Joo DJ, Uemoto S, Joh J, Yoshizumi T, Yang HR, Song GW, Lopez P, Kochuparampil J, Sips C, Kaneko S, Levy G. Efficacy and safety of everolimus with reduced tacrolimus in living-donor liver transplant recipients: 12-month results of a randomized multicenter study. Am J Transplant 2018; 18:1435-1446. [PMID: 29237235 DOI: 10.1111/ajt.14623] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/24/2017] [Accepted: 11/29/2017] [Indexed: 01/25/2023]
Abstract
In a multicenter, open-label, study, 284 living-donor liver transplant patients were randomized at 30 ± 5 days posttransplant to start everolimus+reduced tacrolimus (EVR+rTAC) or continue standard tacrolimus (TAC Control). EVR+rTAC was non-inferior to TAC Control for the primary efficacy endpoint of treated BPAR, graft loss or death at 12 months posttransplant: difference -0.7% (90% CI -5.2%, 3.7%); P < .001 for non-inferiority. Treated BPAR occurred in 2.2% and 3.6% of patients, respectively. The key secondary endpoint, change in estimated glomerular filtration rate (eGFR) from randomization to month 12, achieved non-inferiority (P < .001 for non-inferiority), but not superiority and was similar between groups overall (mean -8.0 vs. -12.1 mL/min/1.73 m2 , P = .108), and in patients continuing randomized treatment (-8.0 vs. -13.3 mL/min/1.73 m2 , P = .046). In the EVR+rTAC and TAC control groups, study drug was discontinued in 15.5% and 17.6% of patients, adverse events with suspected relation to study drug occurred in 57.0% and 40.4%, and proteinuria ≥1 g/24 h in 9.3% and 0%, respectively. Everolimus did not negatively affect liver regeneration. At 12 months, hepatocellular recurrence was only seen in the standard TAC-treated patients (5/62; 8.1%). In conclusion, early introduction of EVR+rTAC was non-inferior to standard tacrolimus in terms of efficacy and renal function at 12 months, with hepatocellular carcinoma recurrence only in TAC Control patients. ClinicalTrials.gov Identifier: NCT01888432.
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Affiliation(s)
| | | | | | - Wei-Chen Lee
- Chang Gung Memorial Hospital, Tao-Yuan, Lin-Ko, Taiwan
| | - Kyung-Suk Suh
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dong Jin Joo
- Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea
| | | | - Jaewon Joh
- Samsung Medical Center, Seoul, Republic of Korea
| | | | | | - Gi-Won Song
- Asan Medical Center, Seoul, Republic of Korea
| | | | | | | | | | - Gary Levy
- University of Toronto, Toronto, Canada
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44
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Mortensen LA, Thiesson HC, Tougaard B, Egfjord M, Fischer ASL, Bistrup C. The effect of spironolactone on calcineurin inhibitor induced nephrotoxicity: a multicenter randomized, double-blind, clinical trial (the SPIREN trial). BMC Nephrol 2018; 19:105. [PMID: 29724188 PMCID: PMC5934785 DOI: 10.1186/s12882-018-0885-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 03/26/2018] [Indexed: 11/12/2022] Open
Abstract
Background Calcineurin inhibitor induced nephrotoxicity contributes to late allograft failure in kidney transplant patients. Evidence points towards aldosterone to play a role in the development of fibrosis in multiple organs. Animal studies have indicated a beneficial effect of mineralocorticoid receptor antagonists preventing calcineurin inhibitor induced nephrotoxicity. Only few studies have explored this effect in humans. The objective of this study is to evaluate the effect of spironolactone on glomerular filtration rate and fibrosis in kidney transplant patients. Method Prospective, double-blind, randomized, clinical trial including 170 prevalent kidney transplant patients. Patients are randomized to spironolactone 25–50 mg/day or placebo for three years. Primary outcome is glomerular filtration rate evaluated by chrome-EDTA clearance. Secondary outcomes are 24-h protein excretion, amount of interstitial fibrosis in renal allograft biopsies, and cardiovascular events. As an exploratory outcome, we aim to identify markers of fibrosis in blood and urine. Discussion Long term allograft survival remains a key issue in renal transplantation, partly due to calcineurin inhibitor induced nephrotoxicity. Evidence from animal- and small human studies indicate a beneficial effect of mineralocorticoid receptor antagonism on renal function and fibrosis. This study aims to test this hypothesis in a sufficiently powered randomized clinical trial. Results might influence the future management of long term allograft survival in renal transplantation. Trial registration ClinicalTrials.gov identifier (05/17/2012): NCT01602861. EudraCT number (05/31/2011): 2011–002243-98.
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Affiliation(s)
- Line Aas Mortensen
- Department of Nephrology, Odense University Hospital, Sdr. Boulevard 29, DK-5000, Odense C, Denmark. .,Department of Clinical Research, University of Southern Denmark, Winsløwparken 19, 3. Sal, 5000, Odense C, Denmark.
| | - Helle C Thiesson
- Department of Nephrology, Odense University Hospital, Sdr. Boulevard 29, DK-5000, Odense C, Denmark.,Department of Clinical Research, University of Southern Denmark, Winsløwparken 19, 3. Sal, 5000, Odense C, Denmark
| | - Birgitte Tougaard
- Department of Nephrology, Kolding Hospital, Sygehusvej 24, 6000, Kolding, Denmark
| | - Martin Egfjord
- Department of Nephrology, Rigshospitalet, Blegdamsvej 9, 2100, København Ø, Denmark
| | - Anne Sophie Lind Fischer
- Department of Nephrology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Claus Bistrup
- Department of Nephrology, Odense University Hospital, Sdr. Boulevard 29, DK-5000, Odense C, Denmark.,Department of Clinical Research, University of Southern Denmark, Winsløwparken 19, 3. Sal, 5000, Odense C, Denmark
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45
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Arbiol-Roca A, Padró-Miquel A, Vidal-Alabró A, Hueso M, Fontova P, Bestard O, Rama I, Torras J, Grinyó JM, Alía-Ramos P, Cruzado JM, Lloberas N. ANRIL as a genetic marker for cardiovascular events in renal transplant patients - an observational follow-up cohort study. Transpl Int 2018; 31:1018-1027. [PMID: 29722077 DOI: 10.1111/tri.13276] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/18/2017] [Accepted: 04/20/2018] [Indexed: 01/09/2023]
Abstract
Cardiovascular disease is the leading cause of morbidity and mortality in kidney transplant recipients. Several single-nucleotide polymorphisms (SNPs) in the ANRIL gene pathway have been associated with cardiovascular events (CE). The main objective was to ascertain whether ANRIL (rs10757278) and CARD8 (rs2043211) SNPs could mediate susceptibility to CE. This was an observational follow-up cohort study of renal transplant recipients at Bellvitge University Hospital (Barcelona) from 2000 to 2014. A total of 505 recipients were followed up until achievement of a CE. Patients who did not achieve the endpoint were followed up until graft loss, lost to follow-up or death. Survival analysis was used to ascertain association between genetic markers, clinical data, and outcome. Fifty-three patients suffered a CE after renal transplantation. Results showed a significant association between ANRIL SNP and CE. Homozygous GG for the risk allele showed higher risk for CE than A carriers for the protective allele [HR = 2.93(1.69-5.11), P < 0.0001]. This effect was maintained when it was analyzed in combination with CARD8, suggesting that CARD8 SNP could play a role in the ANRIL mechanism. However, our study does not clarify the molecular mechanism for the CARD8 SNP regulation by ANRIL. ANRIL SNP may predispose to the development of CE after successful kidney transplantation.
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Affiliation(s)
- Ariadna Arbiol-Roca
- Biochemistry Department, IDIBELL, Hospital Universitari de Bellvitge, Barcelona, Spain
- PhD student at Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Ariadna Padró-Miquel
- Biochemistry Department, IDIBELL, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Anna Vidal-Alabró
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Miquel Hueso
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Pere Fontova
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Oriol Bestard
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Ines Rama
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Joan Torras
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Josep M Grinyó
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Pedro Alía-Ramos
- Biochemistry Department, IDIBELL, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Josep Maria Cruzado
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Nuria Lloberas
- Nephrology and Transplantation group (2017 SGR189), Institut d'Investigació Biomèdica (IDIBELL), Hospital Universitari de Bellvitge, Barcelona, Spain
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46
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Grenzi PC, Campos ÉF, Tedesco-Silva H, Felipe CR, Soares MF, Medina-Pestana J, Hansen HP, Gerbase-DeLima M. Influence of immunosuppressive drugs on the CD30 molecule in kidney transplanted patients. Hum Immunol 2018; 79:550-557. [PMID: 29656112 DOI: 10.1016/j.humimm.2018.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 04/08/2018] [Accepted: 04/10/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Soluble CD30 (sCD30) is a suggested marker for kidney transplantation outcomes. We investigated whether sCD30 serum levels are influenced by immunosuppression and whether they correlate with findings in protocol biopsies and with CD30 gene expression in peripheral blood mononuclear cells (PBMC). METHODS We studied 118 kidney transplant recipients that initially received tacrolimus (TAC) and, at month-3, were converted or not to sirolimus (SRL). RESULTS sCD30 serum levels gradually declined after transplantation, being the decline more pronounced in the SRL group. CD30 gene expression in PBMC was higher in the SRL group than in the TAC group. Patients with IF/TA ≥ I in the month-24 protocol biopsy had higher sCD30 levels than patients without IF/TA, in the SRL group (P = .03) and in the TAC group (P = .07). CD30+ cells were observed in three out of 10 biopsies with inflammatory infiltrate from the SRL group. In mixed lymphocyte cultures, SRL and TAC diminished the number of CD30+ T cells and the sCD30 levels in the supernatant, but the effect of SRL was stronger. CONCLUSIONS Overall, sCD30 levels are lower in SRL-treated patients, but the association between increased sCD30 levels and IF/TA at month-24 post-transplantation is stronger in SRL than in TAC-treated patients.
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Affiliation(s)
- Patricia Cristina Grenzi
- Instituto de Imunogenética - AFIP, Rua Loefgreen 1235, 04040-031 São Paulo, SP, Brazil; Universidade Federal de São Paulo, Rua Sena Madureira 1500, 04021-001 São Paulo, SP, Brazil; University Clinic Cologne, Kerpener Str. 62, 50937 Cologne, Germany.
| | | | - Hélio Tedesco-Silva
- Universidade Federal de São Paulo, Rua Sena Madureira 1500, 04021-001 São Paulo, SP, Brazil; Hospital do Rim, Rua Borges Lagoa 960, 04038-002 São Paulo, SP, Brazil
| | - Claudia Rosso Felipe
- Universidade Federal de São Paulo, Rua Sena Madureira 1500, 04021-001 São Paulo, SP, Brazil; Hospital do Rim, Rua Borges Lagoa 960, 04038-002 São Paulo, SP, Brazil
| | - Maria Fernanda Soares
- Universidade Federal do Paraná, Rua XV de Novembro 1299, 80060-000 Curitiba, PR, Brazil
| | - José Medina-Pestana
- Universidade Federal de São Paulo, Rua Sena Madureira 1500, 04021-001 São Paulo, SP, Brazil; Hospital do Rim, Rua Borges Lagoa 960, 04038-002 São Paulo, SP, Brazil
| | | | - Maria Gerbase-DeLima
- Instituto de Imunogenética - AFIP, Rua Loefgreen 1235, 04040-031 São Paulo, SP, Brazil; Universidade Federal de São Paulo, Rua Sena Madureira 1500, 04021-001 São Paulo, SP, Brazil
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47
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Schumann-Bischoff A, Schmitz J, Scheffner I, Schmitt R, Broecker V, Haller H, Bräsen JH, Gwinner W. Distinct morphological features of acute tubular injury in renal allografts correlate with clinical outcome. Am J Physiol Renal Physiol 2018; 315:F701-F710. [PMID: 29638160 DOI: 10.1152/ajprenal.00189.2017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Acute tubular injury (ATI) is common in renal allografts and is related to inferior long-term allograft function. However, it is unknown which of the morphological features of ATI can predict outcome and how they should be graded. Here, we examine features of ATI systematically in protocol biopsies and biopsies for cause to define the most predictive features. Analyses included 521 protocol biopsies taken at 6 wk, 3 mo, and 6 mo after transplantation and 141 biopsies for cause from 204 patients. Features of ATI included brush border loss, tubular epithelial lucency, flattening, pyknosis, nuclei loss, and luminal debris, each graded semiquantitatively. Additional immunohistochemical stainings were performed for markers of cell injury (neutrophil gelatinase-associated lipocalin), cell death [cleaved caspase-3, fatty acid-coenzyme A ligase 4 (FACL4)], and proliferation (Ki-67). Interobserver reliability was good for pyknosis, flattening, and brush border loss and poor for lucency, nuclei loss, and luminal debris. In protocol biopsies between 6 wk and 6 mo, the degree of ATI remained virtually unchanged. Biopsies for cause had generally higher injury scores. Deceased donor source, delayed graft function, ganciclovir/valganciclovir treatment, and urinary tract infection correlated with ATI. The degree of pyknosis, flattening, and brush border loss correlated best with impaired allograft function. FACL4 expression was observed in areas of ATI. Only patients with Ki-67 expression showed stable or improved allograft function in the longitudinal assessment. Reliable assessment of ATI is possible by semiquantitative grading of tubular epithelial cell brush border loss, flattening, and pyknosis. Examination of Ki-67 expression can help determine the potential for recovery from this damage.
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Affiliation(s)
- Andrea Schumann-Bischoff
- Division of Nephrology, Department of Internal Medicine, Hannover Medical School , Hannover , Germany
| | - Jessica Schmitz
- Department of Pathology, Hannover Medical School , Hannover , Germany
| | - Irina Scheffner
- Division of Nephrology, Department of Internal Medicine, Hannover Medical School , Hannover , Germany
| | - Roland Schmitt
- Division of Nephrology, Department of Internal Medicine, Hannover Medical School , Hannover , Germany
| | - Verena Broecker
- Department of Clinical Pathology and Genetics, Sahlgrenska University Hospital , Gothenburg , Sweden
| | - Hermann Haller
- Division of Nephrology, Department of Internal Medicine, Hannover Medical School , Hannover , Germany
| | - Jan H Bräsen
- Department of Pathology, Hannover Medical School , Hannover , Germany
| | - Wilfried Gwinner
- Division of Nephrology, Department of Internal Medicine, Hannover Medical School , Hannover , Germany
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48
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Einecke G, Reeve J, Halloran PF. A molecular biopsy test based on arteriolar under-hyalinosis reflects increased probability of rejection related to under-immunosuppression. Am J Transplant 2018; 18:821-831. [PMID: 28985016 DOI: 10.1111/ajt.14532] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 09/15/2017] [Accepted: 09/26/2017] [Indexed: 01/25/2023]
Abstract
Calcineurin inhibitor immunosuppressive drugs induce changes such as arteriolar hyalinosis (ah) in kidney transplants, raising the possibility that molecular changes in biopsies related to histologic ah can provide information about drug exposure. We hypothesized that molecular changes associated with less-than-expected hyalinosis might highlight a subpopulation of patients with under-immunosuppression/nonadherence at intermediate times of biopsy posttransplant (TxBx). Using gene expression data from 562 indication biopsies, we developed a molecular classifier for predicting the expected ah lesions (Mah ) at a particular TxBx. Mah -scores increased linearly with log(TxBx), but some biopsies had lower scores than expected for TxBx. The deviation of individual Mah -scores below the predicted regression line of Mah -scores vs TxBx is defined as "low hyalinosis index." Low hyalinosis indices were frequent in biopsies between 3 months and 3 years posttransplant, particularly among biopsies lacking histologic hyalinosis (ah0), and were associated with T cell-mediated rejection and a subset of recent-onset antibody-mediated rejection without glomerular double contours. In patients with medical records available for review, low hyalinosis indices were frequently associated with physician-recorded concerns about nonadherence (suspected or proven). We conclude that the Mah classifier and hyalinosis index identify indication biopsies with rejection for which the possibility of patient nonadherence should be considered.
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Affiliation(s)
- Gunilla Einecke
- Department of Nephrology, Hannover Medical School, Hannover, Germany
| | - Jeff Reeve
- Alberta Transplant Applied Genomics Centre Edmonton, Edmonton, AB, Canada
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Philip F Halloran
- Alberta Transplant Applied Genomics Centre Edmonton, Edmonton, AB, Canada
- Department of Medicine, Division of Nephrology and Transplant Immunology, University of Alberta, Edmonton, AB, Canada
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49
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Vazquez Martul E. [The pathology of renal transplants]. REVISTA ESPAÑOLA DE PATOLOGÍA : PUBLICACIÓN OFICIAL DE LA SOCIEDAD ESPAÑOLA DE ANATOMÍA PATOLÓGICA Y DE LA SOCIEDAD ESPAÑOLA DE CITOLOGÍA 2018; 51:110-123. [PMID: 29602372 DOI: 10.1016/j.patol.2017.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/01/2017] [Indexed: 11/15/2022]
Abstract
In order to make an objective assessment of the histopathology of a renal biopsy during a kidney transplant, all the various elements involved in the process must be understood. It is important to know the characteristics of the donor organ, especially if the donor is older than 65. The histopathological features of the donor biopsy, especially its vascular status, are often related to an initial poor function of the transplanted kidney. The T lymphocyte inflammatory response is characteristic in acute cellular rejection; the degree of tubulitis, together with the amount of affected parenchyme, are important factors. The proportion of cellular sub-populations, such as plasma cells and macrophages, is also important, as they can be related to antibody-mediated humoral rejection. Immunofluorescent or immunohistochemical studies are necessary to rule out C4d deposits or immunogloblulins. The presence of abundant deposits of C4d in tubular basement membranes supports a diagnosis of humoral rejection, as does the presence of capillaritis, glomerulitis which, together with vasculitis, are typical diagnostic findings in C4d negative cases. Interstitial fibrosis, tubular atrophy and glomerular sclerosis, although non-specific, imply a chronic phase. Transplant glomerulopathy and multilamination in more than 6 layers of the tubular and glomerular basement membranes are quasi-specific characteristics of chronic humoral rejection. Electron microscopy is essential to identify of these pathologies as well as to demonstrate the presence of other glomerular renal diseases.
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Affiliation(s)
- Eduardo Vazquez Martul
- Ex Jefe de Servicio de Anatomía Patológica, Hospital Universitario A Coruña (retirado), A Coruña, España; Ex profesor asociado de la Facultad de Medicina, Universidad de Santiago de Compostela, Santiago de Compostela, A Coruña, España; Miembro del Club de Nefropatología (Sociedad Española de Nefrología), España.
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50
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Asano K, Takahashi E, Yoshimura S, Nakane A. Oral administration of salmon cartilage proteoglycan extends the survival of allografts in mice. Biomed Rep 2018; 8:37-40. [PMID: 29387389 DOI: 10.3892/br.2017.1011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 10/06/2017] [Indexed: 01/03/2023] Open
Abstract
Proteoglycan (PG) is a complex glycohydrate that is widely distributed in the extracellular matrix. Oral administration of PG extracted from salmon nasal cartilage has been reported to attenuate the severity and proinflammatory cytokine responses in mouse experimental colitis, autoimmune encephalomyelitis, collagen-induced arthritis and obesity-induced inflammation. In the present study, the effects of salmon nasal cartilage PG on skin allografts were investigated in a mouse model. Oral administration of PG prolonged the survival of skin grafts within 10 days of transplantation. Although PG failed to inhibit allograft rejection at the final stage of transplantation, PG attenuated the cell infiltration in the skin under the transplanted site.
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Affiliation(s)
- Krisana Asano
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan.,Biopolymer and Health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Emiko Takahashi
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Sayuri Yoshimura
- Biopolymer and Health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan.,Tohoku Women's College, Hirosaki, Aomori 036-8503, Japan
| | - Akio Nakane
- Department of Microbiology and Immunology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan.,Biopolymer and Health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
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