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Lopez-Martinez M, Torres I, Bermejo S, Moreso F, Garcia-Carro C, Vergara A, Ramos N, Perello M, Gabaldon A, Azancot MA, Bolufer M, Toapanta N, Bestard O, Agraz-Pamplona I, Soler MJ. Enteric Budesonide in Transplant and Native IgA Nephropathy: Real-World Clinical Practice. Transpl Int 2022; 35:10693. [PMID: 36311259 PMCID: PMC9613952 DOI: 10.3389/ti.2022.10693] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 10/04/2022] [Indexed: 01/24/2023]
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Meneghini M, Perona A, Crespo E, Bemelman F, Reinke P, Viklicky O, Giral M, Palou E, Torija A, Donadeu L, Melilli E, Zuñiga J, Sefrin A, Lachmann N, Hu L, Hruba P, Guillot-Gueguen C, Brouard S, Grinyo J, Bestard O. On the clinical relevance of using complete high-resolution HLA typing for an accurate interpretation of posttransplant immune-mediated graft outcomes. Front Immunol 2022; 13:924825. [PMID: 36248818 PMCID: PMC9559221 DOI: 10.3389/fimmu.2022.924825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 08/30/2022] [Indexed: 11/18/2022] Open
Abstract
Complete and high-resolution (HR) HLA typing improves the accurate assessment of donor–recipient compatibility and pre-transplant donor-specific antibodies (DSA). However, the value of this information to identify de novo immune-mediated graft events and its impact on outcomes has not been assessed. In 241 donor/recipient kidney transplant pairs, DNA samples were re-evaluated for six-locus (A/B/C/DRB1/DQB1+A1/DPB1) HR HLA typing. De novo anti-HLA antibodies were assessed using solid-phase assays, and dnDSA were classified either (1) as per current clinical practice according to three-locus (A/B/DRB1) low-resolution (LR) typing, estimating donor HLA-C/DQ typing with frequency tables, or (2) according to complete six-locus HR typing. The impact on graft outcomes was compared between groups. According to LR HLA typing, 36 (15%) patients developed dnDSA (LR_dnDSA+). Twenty-nine out of 36 (80%) were confirmed to have dnDSA by HR typing (LR_dnDSA+/HR_dnDSA+), whereas 7 (20%) did not (LR_dnDSA+/HR_dnDSA−). Out of 49 LR_dnDSA specificities, 34 (69%) were confirmed by HR typing whereas 15 (31%) LR specificities were not confirmed. LR_dnDSA+/HR_dnDSA+ patients were at higher risk of ABMR as compared to dnDSA− and LR_dnDSA+/HR_dnDSA− (logRank < 0.001), and higher risk of death-censored graft loss (logRank = 0.001). Both LR_dnDSA+ (HR: 3.51, 95% CI = 1.25–9.85) and LR_dnDSA+/HR_dnDSA+ (HR: 4.09, 95% CI = 1.45–11.54), but not LR_dnDSA+/HR_dnDSA− independently predicted graft loss. The implementation of HR HLA typing improves the characterization of biologically relevant de novo anti-HLA DSA and discriminates patients with poorer graft outcomes.
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Mamode N, Bestard O, Claas F, Furian L, Griffin S, Legendre C, Pengel L, Naesens M. European Guideline for the Management of Kidney Transplant Patients With HLA Antibodies: By the European Society for Organ Transplantation Working Group. Transpl Int 2022; 35:10511. [PMID: 36033645 PMCID: PMC9399356 DOI: 10.3389/ti.2022.10511] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/14/2022] [Indexed: 12/12/2022]
Abstract
This guideline, from a European Society of Organ Transplantation (ESOT) working group, concerns the management of kidney transplant patients with HLA antibodies. Sensitization should be defined using a virtual parameter such as calculated Reaction Frequency (cRF), which assesses HLA antibodies derived from the actual organ donor population. Highly sensitized patients should be prioritized in kidney allocation schemes and linking allocation schemes may increase opportunities. The use of the ENGAGE 5 ((Bestard et al., Transpl Int, 2021, 34: 1005–1018) system and online calculators for assessing risk is recommended. The Eurotransplant Acceptable Mismatch program should be extended. If strategies for finding a compatible kidney are very unlikely to yield a transplant, desensitization may be considered and should be performed with plasma exchange or immunoadsorption, supplemented with IViG and/or anti-CD20 antibody. Newer therapies, such as imlifidase, may offer alternatives. Few studies compare HLA incompatible transplantation with remaining on the waiting list, and comparisons of morbidity or quality of life do not exist. Kidney paired exchange programs (KEP) should be more widely used and should include unspecified and deceased donors, as well as compatible living donor pairs. The use of a KEP is preferred to desensitization, but highly sensitized patients should not be left on a KEP list indefinitely if the option of a direct incompatible transplant exists.
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Guiteras J, Crespo E, Fontova P, Bolaños N, Gomà M, Castaño E, Bestard O, Grinyó JM, Torras J. Dual Costimulatory and Coinhibitory Targeting with a Hybrid Fusion Protein as an Immunomodulatory Therapy in Lupus Nephritis Mice Models. Int J Mol Sci 2022; 23:ijms23158411. [PMID: 35955542 PMCID: PMC9369380 DOI: 10.3390/ijms23158411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/23/2022] [Accepted: 07/26/2022] [Indexed: 02/01/2023] Open
Abstract
Systemic lupus erythematosus is a complex autoimmune disorder mostly mediated by B-cells in which costimulatory signals are involved. This immune dysregulation can cause tissue damage and inflammation of the kidney, resulting in lupus nephritis and chronic renal failure. Given the previous experience reported with CTLA4-Ig as well as recent understanding of the PD-1 pathway in this setting, our group was encouraged to evaluate, in the NZBWF1 model, a human fusion recombinant protein (Hybri) with two domains: CTLA4, blocking the CD28—CD80 costimulatory pathway, and PD-L2, exacerbating the PD-1–PD-L2 coinhibitory pathway. After achieving good results in this model, we decided to validate the therapeutic effect of Hybri in the more severe MRL/lpr model of lupus nephritis. The intraperitoneal administration of Hybri prevented the progression of proteinuria and anti-dsDNA antibodies to levels like those of cyclophosphamide and reduced the histological score, infiltration of B-cells, T-cells, and macrophages and immune deposition in both lupus-prone models. Additionally, Hybri treatment produced changes in both inflammatory-related circulating cytokines and kidney gene expression. To summarize, both in vivo studies revealed that the Hybri effect on costimulatory-coinhibitory pathways may effectively mitigate lupus nephritis, with potential for use as a maintenance therapy.
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Pernin V, Meneghini M, Torija A, Jouve T, Del Bello A, Sanz-Muñoz I, Eiros J, Donadeu L, Polo C, Morandeira F, Navarro S, Masuet C, Favà A, LeQuintrec M, Kamar N, Crespo E, Bestard O. Impaired antigen-specific B-cell responses after Influenza vaccination in kidney transplant recipients receiving co-stimulation blockade with Belatacept. Front Immunol 2022; 13:918887. [PMID: 35967428 PMCID: PMC9374104 DOI: 10.3389/fimmu.2022.918887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/04/2022] [Indexed: 01/14/2023] Open
Abstract
Emerging data suggest that costimulation blockade with belatacept effectively controls humoral alloimmune responses. However, whether this effect may be deleterious for protective anti-infectious immunity remains poorly understood. We performed a mechanistic exploratory study in 23 kidney transplant recipients receiving either the calcineurin-inhibitor tacrolimus (Tac, n=14) or belatacept (n=9) evaluating different cellular immune responses after influenza vaccination such as activated T follicular Helper (Tfh), plasmablasts and H1N1 hemagglutinin (HA)-specific memory B cells (HA+mBC) by flow-cytometry, and anti-influenza antibodies by hemagglutination inhibition test (HI), at baseline and days 10, 30 and 90 post-vaccination. The proportion of CD4+CD54RA-CXCR5+ Tfh was lower in belatacept than Tac patients at baseline (1.86%[1.25-3.03] vs 4.88%[2.40-8.27], p=0.01) and remained stable post-vaccination. At M3, HA+mBc were significantly higher in Tac-treated patients (0.56%[0.32-1.49] vs 0.27%[0.13-0.44], p=0.04) and correlated with activated Tfh numbers. When stratifying patients according to baseline HA+mBc frequencies, belatacept patients with low HA+mBC displayed significantly lower HA+mBc increases after vaccination than Tac patients (1.28[0.94-2.4] vs 2.54[1.73-5.70], p=0.04). Also, belatacept patients displayed significantly lower seroprotection rates against H1N1 at baseline than Tac-treated patients (44.4% vs 84.6%) as well as lower seroconversion rates at days 10, 30 and 90 after vaccination (50% vs 0%, 63.6% vs 0%, and 63.6% vs 0%, respectively). We show the efficacy of belatacept inhibiting T-dependent antigen-specific humoral immune responses, active immunization should be highly encouraged before starting belatacept therapy.
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Quiroga B, Soler MJ, Ortiz A, Mantecón CJJ, Pérez NN, Martín MS, Sato Y, Franco AJM, Zambrano DFP, Valverde RL, Diaz MO, González CC, López JMC, Pereira M, Parra EG, Horrillo AS, González CS, Toapanta N, Guldris SC, Hernández RS, Sánchez SP, Rincón MM, Garcia-Fernandez N, Castro NB, Mateo RC, Morales MAQ, Escamilla-Cabrera B, Godoy IB, Casanova BGC, Leyva A, Rojas J, Gansevoort RT, de Sequera P, Carretero MP, Tocora DG, Rodríguez MTJ, Zanón TT, Suárez ER, Santolaya AJS, Calero RC, Cobo PA, Ramos PM, Gracia-Iguacel C, Martin-Cleary C, Sánchez-Rodríguez J, Ramos-Verde A, Giraldo YG, Suárez PR, Perpén AF, Ramos AF, Villanueva LS, Cortiñas A, Arias PAD, Cárdenas AC, de Santos A, Núñez A, Cuadrado GB, Repollet R, Moreso F, Azancot MA, Ramos N, Bestard O, Cidraque I, Bermejo S, Agraz I, Prat O, Medina C, Pardo E, Saiz A, Granados NM, Cabo MJC, Alarcón WL, Alexandru S, Suarez LGP, Saico SP, Tapia MP, Osorio LR, Zamora R, Moreno PLM, González NA, Ortiz AS, Iñarrea MNB, García T, Narváez C, Orellana C, León JLP, García MAM, Jiménez BG, Moya JDDR, Espinosa DL, Herrador AJ, Zurita MN, Díaz Álvarez L, Martínez ÁG, Arroyo SB, Fernández RR, Vargas MJS, Casero RC, Useche G, de Miguel CS, Palacios Á, Henningsmeyer B, Calve EO, Moya JL, Gash SC, Martínez LR, Perez VLDLM, Arevalo MC, Calvo JAH, Salgueira M, Aresté N, Rodríguez MDLÁ, Collantes R, Martínez AI, Moyano MJ, Víbora EJ, Hernández APR, Rebollo MSG, Hernández JMR, Aguilera ET, Alea RT, Saldaña MSDR, de la Pisa AMU, Monzon LS, Anachuri KA, Garcia EH, Gomez VO, Cavalotti IM, Zorita IN, López SO, González SO, Montañez CS, Serna MRDA, Perich LG, de la Rosa EC. Anti-Spike antibodies three months after SARS-CoV-2 mRNA vaccine booster dose in patients on hemodialysis: the prospective SENCOVAC study. Clin Kidney J 2022; 15:1856-1864. [PMID: 36147708 PMCID: PMC9384616 DOI: 10.1093/ckj/sfac169] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Patients on hemodialysis are at high-risk for complications derived from coronavirus disease-19 (COVID-19). The present analysis evaluated the impact of a booster vaccine dose and breakthrough severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections on humoral immunity three months after the booster dose.
Methods
This is a multicentric and prospective study assessing IgG anti-Spike antibodies 6 and 9 months after initial SARS-CoV-2 vaccination in patients on hemodialysis that had also received a booster dose before the 6-month assessment (early booster) or between the 6- and 9-month assessments (late booster). The impact of breakthrough infections, type of vaccine, time from the booster and clinical variables were assessed.
Results
A total of 711 patients (67% male, 67 [20-89] years) were included. Of which, 545 (77%) received an early booster and the rest a late booster. At 6 months, 64 (9%) patients had negative anti-Spike antibody titers (3% of early booster and 29% of late booster patients, p = 0.001). At 9 months, 91% of patients with 6-month negative response had seroconverted and there were no differences in residual prevalence of negative humoral response between early and late booster patients (0.9% vs 0.6%, p = 0.693). During follow-up, 35 patients (5%) developed breakthrough SARS-CoV-2 infection. Antibody titers at 9 months were independently associated to mRNA-1273 booster (p = 0.001), lower time from booster (p = 0.043) and past breakthrough SARS-CoV-2 infection (p<0.001).
Conclusions
In hemodialysis patients, higher titers of anti-Spike antibodies at 9 months were associated to mRNA-1273 booster, lower time from booster and past breakthrough SARS-CoV-2 infection.
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Toapanta N, Comas J, León Román J, Ramos N, Azancot M, Bestard O, Tort J, Soler MJ. Mortality in elderly patients starting hemodialysis program. Semin Dial 2022. [PMID: 35817409 DOI: 10.1111/sdi.13114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/31/2022] [Accepted: 06/12/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND The incidence of older patients over 80 years old with chronic kidney disease who start hemodialysis (HD) program has been increasing in the last decade. METHODS We aimed to identify risk factors for morbidity and mortality in patients older than 80 years with end-stage renal disease who started HD. We conducted a retrospective observational study of the Catalan Renal registry (RMRC). RESULTS A total of 2833 patients equal or older than 80 years (of 15,137) who started HD between 2002 and 2019 from the RMRC were included in the study. In this group, the first dialysis was performed through an arteriovenous fistula in 44%, percutaneous catheter in 28.2%, and tunneled catheter in 26.6%. Conventional dialysis was used in 65.7% and online HD in 34.3%. The most frequent cause of death was cardiac disease (21.8%), followed by social problems (20.4%) and infections (15.9%). Overall survival in older HD during the first year was 84% versus 91% in younger than 80 years (p < 0.001). Cox regression analysis identified the start of HD in the period 2002-2010, chronic obstructive pulmonary disease (COPD), and the onset of HD through vascular graft depicted as risk factors for first-year mortality after dialysis initiation in patients older than 80 years with end-stage renal disease who started HD. CONCLUSIONS In conclusion, patients older than 80 years who started HD program had higher mortality, especially those who presented exacerbation of kidney disease, those with COPD, and those who started with a vascular graft.
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Crespo E, Vidal-Alabró A, Jouve T, Fontova P, Stein M, Mocka S, Meneghini M, Sefrin A, Hruba P, Gomà M, Torija A, Donadeu L, Favà A, Cruzado JM, Melilli E, Moreso F, Viklicky O, Bemelman F, Reinke P, Grinyó J, Lloberas N, Bestard O. Tacrolimus CYP3A Single-Nucleotide Polymorphisms and Preformed T- and B-Cell Alloimmune Memory Improve Current Pretransplant Rejection-Risk Stratification in Kidney Transplantation. Front Immunol 2022; 13:869554. [PMID: 35833145 PMCID: PMC9272702 DOI: 10.3389/fimmu.2022.869554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/23/2022] [Indexed: 11/19/2022] Open
Abstract
Achieving fast immunosuppression blood exposure after kidney transplantation is key to abrogating both preformed and de novo anti-donor humoral and cellular alloresponses. However, while tacrolimus (TAC) is the cornerstone immunosuppressant inhibiting adaptive alloimmunity, its blood exposure is directly impacted by different single-nucleotide polymorphisms (SNPs) in CYP3A TAC-metabolizing enzymes. Here, we investigated how functional TAC-CYP3A genetic variants (CYP3A4*22/CYP3A5*3) influence the main baseline clinical and immunological risk factors of biopsy-proven acute rejection (BPAR) by means of preformed donor-specific antibodies (DSAs) and donor-specific alloreactive T cells (DSTs) in a large European cohort of 447 kidney transplants receiving TAC-based immunosuppression. A total of 70 (15.7%) patients developed BPAR. Preformed DSAs and DSTs were observed in 12 (2.7%) and 227 (50.8%) patients, respectively. According to the different CYP3A4*22 and CYP3A5*3 functional allele variants, we found 4 differential new clusters impacting fasting TAC exposure after transplantation; 7 (1.6%) were classified as high metabolizers 1 (HM1), 71 (15.9%) as HM2, 324 (72.5%) as intermediate (IM), and 45 (10.1%) as poor metabolizers (PM1). HM1/2 showed significantly lower TAC trough levels and higher dose requirements than IM and PM (p < 0.001) and more frequently showed TAC underexposure (<5 ng/ml). Multivariate Cox regression analyses revealed that CYP3A HM1 and IM pharmacogenetic phenotypes (hazard ratio (HR) 12.566, 95% CI 1.99–79.36, p = 0.007, and HR 4.532, 95% CI 1.10–18.60, p = 0.036, respectively), preformed DSTs (HR 3.482, 95% CI 1.99–6.08, p < 0.001), DSAs (HR 4.421, 95% CI 1.63–11.98, p = 0.003), and delayed graft function (DGF) (HR 2.023, 95% CI 1.22–3.36, p = 0.006) independently predicted BPAR. Notably, a significant interaction between T-cell depletion and TAC underexposure was observed, showing a reduction of the BPAR risk (HR 0.264, 95% CI 0.08–0.92, p = 0.037). Such variables except for DSAs displayed a higher predictive risk for the development of T cell-mediated rejection (TCMR). Refinement of pretransplant monitoring by incorporating TAC CYP3A SNPs with preformed DSAs as well as DSTs may improve current rejection-risk stratification and help induction treatment decision-making.
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Gómez Preciado F, De Carvalho Ovalles RA, Codina S, Donadeu L, Favà A, Martinez Valenzuela L, Sandoval D, Fernández-Cidón B, Bestard O, Alia-Ramos P, Gomà M, Melilli E, Cruzado JM. Collapsing Glomerulonephritis in a Kidney Transplant Recipient after mRNA SARS-CoV-2 Vaccination. J Clin Med 2022; 11:jcm11133651. [PMID: 35806939 PMCID: PMC9267596 DOI: 10.3390/jcm11133651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/20/2022] [Accepted: 06/23/2022] [Indexed: 11/16/2022] Open
Abstract
With the vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), studies are describing cases of glomerulonephritis arising after vaccination. We present the first case of a kidney transplant patient who, after mRNA vaccination against SARS-CoV-2, developed nephrotic proteinuria and renal dysfunction, with a biopsy diagnostic of collapsing glomerulonephritis. No other triggers for this glomerulonephritis were identified. Antibodies against the spike protein were negative, but the patient developed a specific T-cell response. The close time between vaccination and the proteinuria suggests a possible determinant role of vaccination. We should be aware of nephropathies appearing after COVID-19 vaccination in kidney transplant recipients also.
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Bestard O, Thaunat O, Bellini MI, Böhmig GA, Budde K, Claas F, Couzi L, Furian L, Heemann U, Mamode N, Oberbauer R, Pengel L, Schneeberger S, Naesens M. Alloimmune Risk Stratification for Kidney Transplant Rejection. Transpl Int 2022; 35:10138. [PMID: 35669972 PMCID: PMC9163827 DOI: 10.3389/ti.2022.10138] [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: 10/21/2021] [Accepted: 01/26/2022] [Indexed: 11/13/2022]
Abstract
Different types of kidney transplantations are performed worldwide, including biologically diverse donor/recipient combinations, which entail distinct patient/graft outcomes. Thus, proper immunological and non-immunological risk stratification should be considered, especially for patients included in interventional randomized clinical trials. This paper was prepared by a working group within the European Society for Organ Transplantation, which submitted a Broad Scientific Advice request to the European Medicines Agency (EMA) relating to clinical trial endpoints in kidney transplantation. After collaborative interactions, the EMA sent its final response in December 2020, highlighting the following: 1) transplantations performed between human leukocyte antigen (HLA)-identical donors and recipients carry significantly lower immunological risk than those from HLA-mismatched donors; 2) for the same allogeneic molecular HLA mismatch load, kidney grafts from living donors carry significantly lower immunological risk because they are better preserved and therefore less immunogenic than grafts from deceased donors; 3) single-antigen bead testing is the gold standard to establish the repertoire of serological sensitization and is used to define the presence of a recipient's circulating donor-specific antibodies (HLA-DSA); 4) molecular HLA mismatch analysis should help to further improve organ allocation compatibility and stratify immunological risk for primary alloimmune activation, but without consensus regarding which algorithm and cut-off to use it is difficult to integrate information into clinical practice/study design; 5) further clinical validation of other immune assays, such as those measuring anti-donor cellular memory (T/B cell ELISpot assays) and non-HLA-DSA, is needed; 6) routine clinical tests that reliably measure innate immune alloreactivity are lacking.
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León Román J, Iacoboni G, Bermejo Garcia S, Carpio C, Bolufer Cardona M, Bestard O, Barba P, Jose Soler Romeo M. FC072: Acute Kidney Injury and Chimeric Antigen Receptor (CAR)-T Therapy in Haematologic Neoplasias: The Importance of Kidney Disease. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac112.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
Chimeric Antigen Receptor (CAR)-T cell therapy has been a revolutionary treatment for hematological malignancies. Additionally, its potential use in solid tumors such as ovarian, prostate and lung neoplasms is currently being investigated with promising results (1).
The most frequent complications after CAR T-cell therapy include cytokine release syndrome (CRS), neurotoxicity, infections, cytopenia and hypogammaglobulinaemia (2, 3, 4, 5). Acute kidney injury (AKI) occurs between 20–30%, mostly associated with cytokine release syndrome (CRS), hydroelectrolyte disorders and tumor lysis syndrome (TLS). The purpose of this study was to determine the demographics, laboratory results and clinical evolution of patients who have received CAR-T cell therapy to identify risk factors associated with AKI and long-term outcomes in these patients.
METHOD
We performed a retrospective review of the medical records of 115 patients with haematological neoplasms who received CD19-targeted CAR T-cell therapy at Vall d'Hebron Hospital between July 2018 and May 2021. Clinical and laboratory results of the first 60 days post-infusion were systematically examined and data was collected at the following days: +1, +7, +14, +21, +28 and +60. AKI was defined as the Kidney Disease Improving Global Outcomes (KDIGO) criteria: grade 1, 1.5 to <2-fold of baseline; grade 2, 2 to < 3-fold of baseline; and grade 3, ≥3-fold of baseline. Firstly, the sample was divided into two groups: patients with kidney injury and those without in order to identify risk factors for AKI. Secondly, actuarial survival curves were estimated using the Kaplan–Meier method.
RESULTS
A total of 24 (20.9%) of the 115 patients presented AKI after CAR-T cell therapy infusion. AKI was diagnosed by day +1 post-infusion in 3 (2.6%) patients, by day +7 in 13 (11.3%) patients, by day +14 in 1 (0.9%) patient, by day +21 in 2 (1.7%) patients, by day +28 in 2 patients (1.7%), by day +60 in 1 (0.9%) patient and 2 (1.7%) patients during the fludarabine and cyclophosphamide conditioning chemotherapy. Nineteen (79.2%) patients recovered kidney function within the first month after CAR-T infusion. Mean age was 61 ±14.8 years and 66.1% were male. Demographic and clinical characteristics are shown in Table 1 (AKI patients and non-AKI patients). Briefly, hypertension was present in 37.4% of patients, diabetes in 7.8%, chronic kidney disease in 13.9% and cardiovascular disease in 5.2%. Haematological neoplasms include diffuse large B-cell lymphoma (90.5%), B-cell acute lymphoblastic leukemia (5.2%), mantle lymphoma (3.5%) and primary mediastinal large B-cell lymphoma (0.68%). Among the types of CAR-T cell therapy, patients received tisagenlecleucel (49.6%), investigational products (27.8%), axicabtagen ciloleucelin (20%) and brexucabtagene autoleucel (2.6%). The most frequent complications were CRS (72.2%), febrile neutropenia (67%) and neurotoxicity (16.5%). Thirty-one (27%) patients required tocilizumab for CRS grade ≥ 2. A total of 5.2% of patients were admitted to the intensive care unit and 31.3% died. In the bivariate analysis, male sex, types of CAR-T cell therapy infused, and neurotoxicity were associated with AKI. Only male sex (1.26–21.9; P 0.23) and neurotoxicity (2.15–70.6; P 0.005) were identified as risk factors for AKI in multivariable analysis. In the actuarial survival analysis, levels of hemoglobin, creatinine, sodium and reactive C protein in day + 1 and in day +28 showed no statistically significant differences for mortality (Table 2).
CONCLUSION
CAR-T cell therapy has shown beneficial results in haematologic malignancies. In our study, 20.9% of patients developed AKI, especially in the first week of the CAR-T infusion. The majority of patients, a total of 79.2% of patients recovered kidney function within the first 28 days post-treatment, suggesting that AKI is a frequent but mild disease with a fast recovery in patients treated with CAR-T cells.
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Castañeda Amado Z, Toapanta N, Jimenez S, Molina Gomez M, Maruri Kareaga N, Llinás L, Villanego F, Canal C, Rodriguez M, Montero N, Vazquez-Sanchez T, Gutierrez Dalmau A, Beneyto I, Franco Esteve A, María Vicente A, Lourdes Pérez Tamajón M, Leticia Martin-Moreno P, Ramos A, Bestard O, Moreso F. MO1017: Induction Immunosuppression and Outcome in Early Kidney Transplant Recipients with Covid-19. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac088.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
COVID-19 in kidney transplants has a high risk of complications and mortality, especially in older recipients diagnosed during the early period after transplantation. Management of immunosuppression has been challenging during the pandemic. We investigated the impact of induction immunosuppression, either basiliximab or thymoglobulin, on the clinical evolution of kidney transplants developing COVID-19 during the early period after transplantation.
METHOD
Kidney transplant recipients with <6 months with a functioning graft diagnosed of COVID-19 from the initial pandemic outbreak (March 2020) until 31 July 2021 from different Spanish centres participating in a nationwide registry.
RESULTS
A total of 127 patients from 17 Spanish centres developed COVID-19 during the first 6 months after transplantation, 73 (57.5%) received basiliximab and 54 (42.5%) thymoglobulin. Demographics were not different between groups, but patients receiving thymoglobulin were more sensitized (cPRA of 32.7% ± 40.8% versus 5.6% ± 18.5%) and more frequently re-transplanted (30% versus 4%). Recipients older than 65 years treated with thymoglobulin showed the highest rate of acute respiratory distress syndrome [64.7% versus 37.1% for older recipients receiving thymoglobulin and basiliximab (P < .05), and 23.7% and 18.9% for young recipients receiving basiliximab and thymoglobulin (P > .05)] and the poorest survival [mortality rate of 64.7% and 42.9% for older recipients treated with thymoglobulin and basiliximab, respectively (P < .05), and 8.1% and 10.5% for young recipients treated with thymoglobulin and basiliximab (P > .05)]. Older recipients treated with thymoglobulin showed the poorest survival in the Cox's regression model adjusted for comorbidities.
CONCLUSION
Thymoglobulin should be used with caution in older recipients during the present pandemic era.
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Bermejo Garcia S, Agraz I, Vergara A, Bestard O, Jose Soler Romeo M. MO631: Diabetic Retinopathy and/or Diabetic Nephropathy Confers A Worse Renal Prognosis. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac076.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
Around 50%–60% lesions of non-diabetic nephropathy (NDN) have been identified in patients with diabetes and renal biopsy. NDN patients have a better renal prognosis and survival. Diabetic retinopathy (DR) is a microvascular complication of diabetes frequently associated with diabetic nephropathy (DN). The objective of the work is to study the renal prognosis and survival of patients with DN with or without DR.
METHOD
Retrospective, observational, multicenter study of the pathological results of diabetic patients with renal biopsy was undertaken. A total of 18 Spanish centers have participated.
RESULTS
Cohort of 832 patients: 621 men (74.6%), median age 61.7 ± 12.8 years, median creatinine 2.8 ± 2.2 mg/dL and proteinuria 2.7 (1.2–5.4) g/24 h. Of them, 26.6% (n = 221) presented DR, 18.8% (n = 156) peripheral vasculopathy and 17.7% (n = 147) ischemic heart disease.
On biopsy, 39.5% (n = 329) of patients had DN, 413 (49.6%) NDN and 90 (10.8%) mixed forms. We evidenced more DR in the DN group compared with the other two groups (44.1% versus 11.1% in NDN and 33.3% in mixed forms). Regarding renal prognosis, 58.9% (n = 109) of patients with DR and DN and mixed forms required RRT versus 40.7% (n = 88) of patients without DR. A total of 39.1% (n = 18) of patients with DR and NDN required renal replacement therapy (RRT) versus 23.9% (n = 79) of patients without DR. Regarding mortality, 28.6% (n = 50) of patients with DR and DN or mixed forms died during the follow-up versus 22.7% (n = 49) of patients without DR. A total of 15.2% (n = 7) of patients with DR and NDN died and 15.4% (n = 51) of patients without DR.
In survival analysis (Kaplan—Meier curves), patients with DR had worse renal prognosis (P < 0.001), patients with DN (P < 0.001) and patients with DR and/or DN and mixed forms (P = 0.02). Cox regression analysis identified as independent risk factors of RRT: age (OR 1.014;1.025–1.004, P = 0.006), creatinine (OR 1.262; 1.217–1.309; P < 0.001), proteinuria (OR 1.057; 1.03–1.085; P < 0.001), DR (OR 1.359; 1.007–1.833; P = 0.045), DR and/or DN (OR 1.59; 2.42–1.04; P = 0.033) and DN (OR1.489; 1.05–2.11; P = 0.026).
CONCLUSION
The presence of DR and/or DN confers a worse renal prognosis. The diagnosis of diabetic microangiopathy in terms of retinopathy and/or diabetic nephropathy is crucial since it confers a worse renal prognosis indicating patients at risk of progression to end-stage renal disease.
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Yoo D, Divard G, Raynaud M, Naesens M, Kamar N, Bouquegneau A, Oppenheimer F, De Sousa E, Kuypers D, Durrbach A, Seron Micas D, Rabant M, Duong Van Huyen JP, Bestard O, Basic-Jukic N, Jurić I, Legendre C, Lefaucheur C, Aubert O, Loupy A. FC 107: Development and Validation of a Machine Learning-Based Virtual Biopsy System in Kidney Transplant Patients. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac121.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
Graphical Abstract
In kidney transplantation, day-zero biopsies are used to assess organ quality and discriminate lesions inherited from the donor or acquired after transplantation. However, many centres worldwide do not perform those biopsies which remain invasive, costly and may delay the transplant procedure. We aimed to develop and validate a noninvasive virtual biopsy system.
METHOD
A total of 17 centres were included from Europe, North America and Australia from 2000 to 2019. Candidate predictors were assessed following a prespecified protocol. Outcome measures were the day-zero biopsy lesions (Banff classification) including CV, AH, IFTA scores and % of sclerotic glomeruli. Six machine learning models were developed and their performances were assessed.
RESULTS
A total of 12 992 day-zero biopsies were included. Eleven parameters were used to build the classifiers, including donor age, kidney function, hypertension, BMI, proteinuria, diabetes, sex, donor type, cause of death and Hep-C status. The ensemble models (random forests, neural networks, gradient boosting, extreme gradient boosting tree, linear discriminant analysis, and naive Bayes) showed multi-AUC of 0.738, 0.817 and 0.788 for prediction of CV, AH and IFTA scores, and a good performance for predicting glomerulosclerosis (mean absolute error, MAE = 4.766). We confirmed the robustness and generalizability in multiple clinical scenarios and subpopulations and built an online interface for clinicians: https://transplant-pred/Virtual_Biopsy.
CONCLUSION
We developed and validated the first virtual biopsy system that enables the prediction of day-zero biopsy, based on routinely collected parameters. This can assist clinicians in assessing allograft quality, discrimination of donor derived versus acquired lesions after transplantation and prevent overdiagnosis of calcineurin inhibitor (CNI) toxicity.
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Toapanta N, Jiménez S, Molina-Gómez M, Maruri-Kareaga N, Llinàs-Mallol L, Villanego F, Facundo C, Rodríguez-Ferrero M, Montero N, Vázquez-Sanchez T, Gutiérrez-Dalmau A, Beneyto I, Franco A, Vicente AH, Pérez-Tamajon ML, Martin P, Ramos-Verde AM, Castañeda Z, Bestard O, Moreso F. Induction immunosuppression and outcome in kidney transplant recipients with early COVID-19 after transplantation. Clin Kidney J 2022; 15:2039-2045. [PMCID: PMC9129170 DOI: 10.1093/ckj/sfac112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
COVID-19 in kidney transplants has a high risk of complications and mortality, especially in older recipients diagnosed during the early period after transplantation. Management of immunosuppression has been challenging during the pandemic. We investigated the impact of induction immunosuppression, either basiliximab or thymoglobulin, on the clinical evolution of kidney transplants developing COVID-19 during the early period after transplantation. Kidney transplant recipients with less than 6 months with a functioning graft diagnosed of COVID-19 from the initial pandemic outbreak (March 2020) until July 31st, 2021 from different Spanish centers participating in a nationwide registry. A total of 127 patients from 17 Spanish centers developed COVID-19 during the first 6 months after transplantation, 73 (57.5%) received basiliximab and 54 (42.5%) thymoglobulin. Demographics were not different between groups but patients receiving thymoglobulin were more sensitized (cPRA of 32.7±40.8% vs. 5.6±18.5%) and were more frequently re-transplants (30% vs. 4%). Recipients older than 65 years treated with thymoglobulin showed the highest rate of acute respiratory distress syndrome (64.7% vs. 37.1% for older recipients receiving thymoglobulin and basiliximab [p<0.05], and 23.7% and 18.9% for young recipients receiving basiliximab and thymoglobulin [p>0.05]) and the poorest survival (mortality rate of 64.7% and 42.9% for older recipients treated with thymoglobulin and basiliximab, respectively [p<0.05], and 8.1% and 10.5% for young recipients treated with thymoglobulin and basiliximab [p>0.05]). Older recipients treated with thymoglobulin showed the poorest survival in the Cox's regression model adjusted for comorbidities. Thus, thymoglobulin should be used with caution in older recipients during the present pandemic era.
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Bermejo S, García-Carro C, Mast R, Vergara A, Agraz I, León JC, Bolufer M, Gabaldon MA, Serón D, Bestard O, Soler MJ. Safety of Obtaining an Extra Biobank Kidney Biopsy Core. J Clin Med 2022; 11:jcm11051459. [PMID: 35268550 PMCID: PMC8911133 DOI: 10.3390/jcm11051459] [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: 02/14/2022] [Revised: 02/28/2022] [Accepted: 03/05/2022] [Indexed: 02/04/2023] Open
Abstract
Background and objectives: Kidney biopsy (KB) is the “gold standard” for the diagnosis of nephropathies and it is a diagnostic tool that presents a low rate of complications. Nowadays, biobank collections of renal tissue of patients with proven renal pathology are essential for research in nephrology. To provide enough tissue for the biobank collection, it is usually needed to obtain an extra kidney core at the time of kidney biopsy. The objective of our study is to evaluate the complications after KB and to analyze whether obtaining an extra core increases the risk of complications. Material and methods: Prospective observational study of KBs performed at Vall d’Hebron Hospital between 2019 and 2020. All patients who accepted to participate to our research biobank of native kidney biopsies were included to the study. Clinical and laboratory data were reviewed and we studied risk factors associated with complications. Results: A total of 221 patients were included, mean age 56.6 (±16.8) years, 130 (58.8%) were men, creatinine was 2.24 (±1.94) mg/dL, proteinuria 1.56 (0.506–3.590) g/24 h, hemoglobin 12.03 (±2.3) g/dL, INR 0.99 (±0.1), and prothrombin time (PT) 11.86 (±1.2) s. A total of 38 patients (17.2%) presented complications associated with the procedure: 13.1% were minor complications, 11.3% (n = 25) required blood transfusion, 1.4% (n = 3) had severe hematomas, 2.3% (n = 5) required embolization, and 0.5% (n = 1) presented arterio-venous fistula. An increased risk for complication was independently associated with obtaining a single kidney core (vs. 2 and 3 cores) (p = 0.021). Conclusions: KB is an invasive and safe procedure with a low percentage of complications. Obtaining an extra kidney core for research does not increase the risk of complications during the intervention, which remains low in concordance with previously published reports.
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Favà A, Donadeu L, Jouve T, Gonzalez-Costello J, Lladó L, Santana C, Toapanta N, Lopez M, Pernin V, Facundo C, Cabañas NS, Thaunat O, Crespo M, Llinàs-Mallol L, Revuelta I, Sabé N, Rombauts A, Calatayud L, Ardanuy C, Esperalba J, Fernandez C, Lozano JJ, Preyer R, Strecker K, Couceiro C, García-Romero E, Cachero A, Meneghini M, Torija A, Le Quintrec M, Melilli E, Cruzado JM, Polo C, Moreso F, Crespo E, Bestard O. A comprehensive assessment of long-term SARS-CoV-2-specific adaptive immune memory in convalescent COVID-19 Solid Organ Transplant recipients. Kidney Int 2022; 101:1027-1038. [PMID: 35124011 PMCID: PMC8813192 DOI: 10.1016/j.kint.2021.12.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 11/25/2021] [Accepted: 12/09/2021] [Indexed: 01/08/2023]
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Bestard O, Jouve T, Castells L, Lopez M, Muñoz M, Crespo E, Toapanta N, Esperalba J, Campos‐Varela I, Pont T, Len O, Campins M, Moreso F. Reconciling short-term clinical and immunological outcomes of SARS-CoV-2 vaccination in solid organ transplant recipients. Am J Transplant 2022; 22:673-675. [PMID: 34554648 PMCID: PMC8653131 DOI: 10.1111/ajt.16855] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/07/2021] [Accepted: 09/16/2021] [Indexed: 01/25/2023]
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Banas MC, Böhmig GA, Viklicky O, Rostaing LP, Jouve T, Guirado L, Facundo C, Bestard O, Gröne HJ, Kobayashi K, Hanzal V, Putz FJ, Zecher D, Bergler T, Neumann S, Rothe V, Schwäble Santamaria AG, Schiffer E, Banas B. A Prospective Multicenter Trial to Evaluate Urinary Metabolomics for Non-invasive Detection of Renal Allograft Rejection (PARASOL): Study Protocol and Patient Recruitment. Front Med (Lausanne) 2022; 8:780585. [PMID: 35071266 PMCID: PMC8782243 DOI: 10.3389/fmed.2021.780585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/01/2021] [Indexed: 12/29/2022] Open
Abstract
Background: In an earlier monocentric study, we have developed a novel non-invasive test system for the prediction of renal allograft rejection, based on the detection of a specific urine metabolite constellation. To further validate our results in a large real-world patient cohort, we designed a multicentric observational prospective study (PARASOL) including six independent European transplant centers. This article describes the study protocol and characteristics of recruited better patients as subjects. Methods: Within the PARASOL study, urine samples were taken from renal transplant recipients when kidney biopsies were performed. According to the Banff classification, urine samples were assigned to a case group (renal allograft rejection), a control group (normal renal histology), or an additional group (kidney damage other than rejection). Results: Between June 2017 and March 2020, 972 transplant recipients were included in the trial (1,230 urine samples and matched biopsies, respectively). Overall, 237 samples (19.3%) were assigned to the case group, 541 (44.0%) to the control group, and 452 (36.7%) samples to the additional group. About 65.9% were obtained from male patients, the mean age of transplant recipients participating in the study was 53.7 ± 13.8 years. The most frequently used immunosuppressive drugs were tacrolimus (92.8%), mycophenolate mofetil (88.0%), and steroids (79.3%). Antihypertensives and antidiabetics were used in 88.0 and 27.4% of the patients, respectively. Approximately 20.9% of patients showed the presence of circulating donor-specific anti-HLA IgG antibodies at time of biopsy. Most of the samples (51.1%) were collected within the first 6 months after transplantation, 48.0% were protocol biopsies, followed by event-driven (43.6%), and follow-up biopsies (8.5%). Over time the proportion of biopsies classified into the categories Banff 4 (T-cell-mediated rejection [TCMR]) and Banff 1 (normal tissue) decreased whereas Banff 2 (antibody-mediated rejection [ABMR]) and Banff 5I (mild interstitial fibrosis and tubular atrophy) increased to 84.2 and 74.5%, respectively, after 4 years post transplantation. Patients with rejection showed worse kidney function than patients without rejection. Conclusion: The clinical characteristics of subjects recruited indicate a patient cohort typical for routine renal transplantation all over Europe. A typical shift from T-cellular early rejections episodes to later antibody mediated allograft damage over time after renal transplantation further strengthens the usefulness of our cohort for the evaluation of novel biomarkers for allograft damage.
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Quiroga B, Soler MJ, Ortiz A, Bernat A, Díaz ABM, Mantecón CJJ, Pérez VOG, González CC, Cervienka M, Mazuecos A, Cazorla JM, Riso MCD, Martínez S, Diaz MO, Valverde RL, Márquez MGS, Novillo CL, Parra EG, Gracia-Iguacel C, De Tomas MTR, Cervera MCA, Giorgi M, Ramos PM, Carmona NM, Toapanta N, Guldris SC, Millán JCRS, Estupiñán RS, Crespo M, Linaza BV, Martín MIJ, Jiménez LRO, Soriano S, Ferri DG, Sánchez MSP, Yugueros A, Leyva A, Rojas J, Gansevoort RT, de Sequera P, Carretero MP, Tocora DG, Rodríguez MJ, Zanón TT, Suárez ER, Santolaya AJS, Calero RC, Cobo PA, Martin-Cleary C, Sánchez-Rodríguez J, Pereira M, Ramos-Verde A, Sánchez C, Giraldo YG, Horrillo AS, Suárez PR, Perpén AF, Ramos AF, Villanueva LS, Cortiñas A, Arias PAD, Cárdenas AC, de Santos A, Núñez A, Cuadrado GB, Repollet R, Moreso F, Azancot MA, Ramos N, Bestard O, Cidraque I, Bermejo S, Agraz I, Prat O, Medina C, Pardo E, Saiz A, Vila MAM, Granados NM, Cabo MJC, Alarcón WL, Alexandru S, Suarez LGP, Saico SP, Tapia MP, Hernández RS, García-Fernández N, Moreno PLM, González NA, Ortiz AS, Iñarrea MNB, López RO, Peregrí CM, Morales MLA, Cabello MDN, Ribera AMT, Valcarce EG, Vergara EG, García T, Narváez C, Orellana C, Ganga PLQ, Carrión FV, Herrera ALG, Chamoun B, Barbosa F, Faura A, Pachón DR, Castro NB, Cendrero RMRC, Hidalgo-Barquero MVM, Gallego RH, Alvarez Á, Leo EV, León JLP, García MAM, Jiménez BG, Moya JDDR, Espinosa DL, Herrador AJ, Zurita MN, Álvarez LD, Martínez ÁG, Arroyo SB, Fernández RR, Vargas MJS, Casero RC, Useche G, de Miguel CS, Palacios Á, Henningsmeyer B, Calve EO, Moya JL, Sato Y, Marín MS, Torres I, Conde PD, Alfaro G, Halauko O, Rifai FEL, Martínez AD, Ávila PJ, Franco AM, Sainz MS, Martín JMB, García LDR, Canga JLP, Ochoa PMV, Pacios LM, Machado LL, Morales AQ, Cavalotti IM, Zorita IN, López SO, González SO, Montañez CS, Rubio AB, Gilsanz GDP, Gonzalez MO, Villanueva RS, Oliva MOL, Varela JC, Enríquez AG, Casas CC, Alonso PO, Tabares LG, Barreiro JML, Solla LP, Gándara A, de la Garza WN, Fleming FF, Goyanes MGR, Feijoo CC, Plaza MMM, Juan CB, Cecilio RVS, Haces CP, Kislikova M, Rodrigo E, Contreras FJP, Lara NB, Llorente EMDB, Díaz LS, Bustamante AMC, Ruiz JM, Rodríguez EG, Perez VLDLM, Arevalo MC, Calvo JAH, Carratalá MRL, Rodríguez LMM, Salazar MS, Prieto BB, Pérez JMP, Rueda DA, Ferrero MLR, Martínez AV, Estébanez SA, Paraíso AG, Huarte E, Lanau M, Campos RA, Ubé JM, Pérez PS, Godoy IB, Aguilera ET, Alea RT, Saldaña MSDR, Salvetti ML, Valmajor MC, Sánchez MP, Barragán ML, Aunatell LR, Salgueira M, Aresté N, de Los Ángeles Rodríguez M, Collantes R, Martínez AI, Moyano MJ, Víbora EJ, Gash SC, Martínez LR, Prieto BA, Toyos C, Rio JM, Acosta AR, Zamacona AC, Ortega SB, Ruiz MIG, Rubio AH, Ledesma PG, Alvarez AG, de Briñas EPL, Cucchiari D, Monzo JB, Cabrera BE, Hernández APR, Rebollo MSG, Hernández JMR, Alonso JC, Más AM, Calvé M, Cardona MG, Balaguer VC, Pesquera JIM, Serrano AG, Simó PT, Mancilla HDR, Gómez MP, Gumpert JV, de la Fuente GDA, Del Valle KP, de la Rosa EC, Santarelli DR, Garcia AS, Martin-Caro AC, Santamaria IM, Umpierrez AM, Ruiz EH, Corbella AM, Perdomo KT, Martín YM, de la Pisa AMU, Monzon LS, Anachuri KA, Garcia EH, Gomez VO, Amado FV, Borges PP, Vázquez RM, Beloso MD, Alonso FA, Felpete NP, Ameneiro AM, Mera MC, Casares BG, Larrondo SZ, Kareaga NM, Del Valle AISS, García ARM, Del Toro Espinosa N, Perico PE, Oliva JMS, Manrique J, Castaño I, Purroi C, Gómez N, Mansilla C, Utzurrum A. Loss of humoral response 3 months after SARS-CoV-2 vaccination in the CKD spectrum: the multicentric SENCOVAC study. Nephrol Dial Transplant 2022; 37:994-999. [PMID: 35022757 PMCID: PMC9383183 DOI: 10.1093/ndt/gfac007] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Indexed: 11/30/2022] Open
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Bestard O, Crespo E. Disarming the Old Foe. Restoring T-Cell Immune Function with mTor-Inhibitors to Tackle Cytomegalovirus Infection. J Am Soc Nephrol 2022; 33:6-8. [PMID: 34969818 PMCID: PMC8763183 DOI: 10.1681/asn.2021111471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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León-Román J, Agraz I, Vergara A, Ramos N, Toapanta N, García-Carro C, Gabaldón A, Bury R, Bermejo S, Bestard O, Soler MJ. OUP accepted manuscript. Clin Kidney J 2022; 15:1698-1704. [PMID: 35999963 PMCID: PMC8992323 DOI: 10.1093/ckj/sfac079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Indexed: 11/25/2022] Open
Abstract
Novel coronavirus disease infection (coronavirus disease 2019, COVID-19) was declared a global pandemic in March 2020 and since then has become a major public health problem. The prevalence of COVID-19 infection and acute kidney injury (AKI) is variable depending on several factors such as race/ethnicity and severity of illness. The pathophysiology of renal involvement in COVID-19 infection is not entirely clear, but it could be in part explained by the viral tropism in the kidney parenchyma. AKI in COVID-19 infection can be either by direct invasion of the virus or as a consequence of immunologic response. Diverse studies have focused on the effect of COVID-19 on glomerulonephritis (GN) patients or the ‘novo’ GN; however, the effect of COVID-19 in acute tubulointerstitial nephritis (ATIN) has been scarcely studied. In this article, we present five cases with different spectrums of COVID-19 infection and ATIN that may suggest that recent diagnosis of ATIN is accompanied by a worse clinical prognosis in comparison with long-term diagnosed ATIN.
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Waldman M, Soler MJ, García-Carro C, Lightstone L, Turner-Stokes T, Griffith M, Torras J, Martinez Valenzuela L, Bestard O, Geddes C, Flossmann O, Budge KL, Cantarelli C, Fiaccadori E, Delsante M, Morales E, Gutierrez E, Niño-Cruz JA, Martinez-Rueda AJ, Comai G, Bini C, La Manna G, Slon MF, Manrique J, Avello A, Fernandez-Prado R, Ortiz A, Marinaki S, Martin Varas CR, Rabasco Ruiz C, Sierra-Carpio M, García-Agudo R, Fernández Juárez G, Hamilton AJ, Bruchfeld A, Chrysochou C, Howard L, Sinha S, Leach T, Agraz Pamplona I, Maggiore U, Cravedi P. COVID-19 in Patients with Glomerular Disease: Follow-Up Results from the IRoc-GN International Registry. KIDNEY360 2021; 3:293-306. [PMID: 35373130 PMCID: PMC8967646 DOI: 10.34067/kid.0006612021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/03/2021] [Indexed: 02/08/2023]
Abstract
Background The acute and long-term effects of severe acute respiratory syndrome coronavirus 2 infection in individuals with GN are still unclear. To address this relevant issue, we created the International Registry of COVID-19 infection in GN. Methods We collected serial information on kidney-related and -unrelated outcomes from 125 GN patients (63 hospitalized and 62 outpatients) and 83 non-GN hospitalized patients with coronavirus disease 2019 (COVID-19) and a median follow-up period of 6.4 (interquartile range 2.3-9.6) months after diagnosis. We used logistic regression for the analyses of clinical outcomes and linear mixed models for the longitudinal analyses of eGFR. All multiple regression models were adjusted for age, sex, ethnicity, and renin-angiotensin-aldosterone system inhibitor use. Results After adjustment for pre-COVID-19 eGFR and other confounders, mortality and AKI did not differ between GN patients and controls (adjusted odds ratio for AKI=1.28; 95% confidence interval [CI], 0.46 to 3.60; P=0.64). The main predictor of AKI was pre-COVID-19 eGFR (adjusted odds ratio per 1 SD unit decrease in eGFR=3.04; 95% CI, 1.76 to 5.28; P<0.001). GN patients developing AKI were less likely to recover pre-COVID-19 eGFR compared with controls (adjusted 6-month post-COVID-19 eGFR=0.41; 95% CI, 0.25 to 0.56; times pre-COVID-19 eGFR). Shorter duration of GN diagnosis, higher pre-COVID-19 proteinuria, and diagnosis of focal segmental glomerulosclerosis or minimal change disease were associated with a lower post-COVID-19 eGFR. Conclusions Pre-COVID-19 eGFR is the main risk factor for AKI regardless of GN diagnosis. However, GN patients are at higher risk of impaired eGFR recovery after COVID-19-associated AKI. These patients (especially those with high baseline proteinuria or a diagnosis of focal segmental glomerulosclerosis or minimal change disease) should be closely monitored not only during the acute phases of COVID-19 but also after its resolution.
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Montero N, Toapanta N, Pallarès N, Crespo M, Diekmann F, Guirado L, Esteban R, Codina S, Melilli E, Buxeda A, Velis G, Torres IB, Revuelta I, Molina Andujar A, Facundo C, Bardají B, Riera L, Fiol M, Cruzado JM, Comas J, Giral M, Naesens M, Åsberg A, Moreso F, Bestard O. Deciphering transplant outcomes of expanded kidney allografts donated after controlled circulatory death in the current transplant era. A call for caution. Transpl Int 2021; 34:2494-2506. [PMID: 34626501 DOI: 10.1111/tri.14131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/20/2021] [Accepted: 10/03/2021] [Indexed: 01/20/2023]
Abstract
Outcomes of kidney transplantation (KT) after controlled circulatory death (cDCD) with highly expanded criteria donors (ECD) and recipients have not been thoroughly evaluated. We analyzed in a multicenter cohort of 1161 consecutive KT, granular baseline donor and recipient factors predicting transplant outcomes, selected by bootstrapping and Cox proportional hazards, and were validated in a contemporaneous European KT cohort (n = 1585). 74.3% were DBD and 25.7% cDCD-KT. ECD-KT showed the poorest graft survival rates, irrespective of cDCD or DBD (log-rank < 0.001). Besides standard ECD classification, dialysis vintage, older age, and previous cardiovascular recipient events together with low class-II-HLA match, long cold ischemia time and combining a diabetic donor with a cDCD predicted graft loss (C-Index 0.715, 95% CI 0.675-0.755). External validation showed good prediction accuracy (C-Index 0.697, 95%CI 0.643-0.741). Recipient older age, male gender, dialysis vintage, previous cardiovascular events, and receiving a cDCD independently predicted patient death. Benefit/risk assessment of undergoing KT was compared with concurrent waitlisted candidates, and despite the fact that undergoing KT outperformed remaining waitlisted, remarkably high mortality rates were predicted if KT was undertaken under the worst risk-prediction model. Strategies to increase the donor pool, including cDCD transplants with highly expanded donor and recipient candidates, should be performed with caution.
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Favà A, Donadeu L, Sabé N, Pernin V, González‐Costello J, Lladó L, Meneghini M, Charmetant X, García‐Romero E, Cachero A, Torija A, Rodriguez‐Urquia R, Crespo E, Teubel I, Melilli E, Montero N, Manonelles A, Preyer R, Strecker K, Ovize A, Lozano JJ, Sidorova J, Cruzado JM, Le Quintrec M, Thaunat O, Bestard O. SARS-CoV-2-specific serological and functional T cell immune responses during acute and early COVID-19 convalescence in solid organ transplant patients. Am J Transplant 2021; 21:2749-2761. [PMID: 33756051 PMCID: PMC8251492 DOI: 10.1111/ajt.16570] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 01/25/2023]
Abstract
The description of protective humoral and T cell immune responses specific against SARS-CoV-2 has been reported among immunocompetent (IC) individuals developing COVID-19 infection. However, its characterization and determinants of poorer outcomes among the at-risk solid organ transplant (SOT) patient population have not been thoroughly investigated. Cytokine-producing T cell responses, such as IFN-γ, IL-2, IFN-γ/IL-2, IL-6, IL-21, and IL-5, against main immunogenic SARS-CoV-2 antigens and IgM/IgG serological immunity were tracked in SOT (n = 28) during acute infection and at two consecutive time points over the following 40 days of convalescence and were compared to matched IC (n = 16) patients admitted with similar moderate/severe COVID-19. We describe the development of a robust serological and functional T cell immune responses against SARS-CoV-2 among SOT patients, similar to IC patients during early convalescence. However, at the infection onset, SOT displayed lower IgG seroconversion rates (77% vs. 100%; p = .044), despite no differences on IgG titers, and a trend toward decreased SARS-CoV-2-reactive T cell frequencies, especially against the membrane protein (7 [0-34] vs. 113 [15-245], p = .011, 2 [0-9] vs. 45 [5-74], p = .009, and 0 [0-2] vs. 13 [1-24], p = .020, IFN-γ, IL-2, and IFN-γ/IL-2 spots, respectively). In summary, our data suggest that despite a certain initial delay, SOT population achieve comparable functional immune responses than the general population after moderate/severe COVID-19.
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