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Acute cellular rejection

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https://www.readbyqxmd.com/read/28408277/lung-transplantation-in-systemic-sclerosis-a-single-center-cohort-study
#1
Andreu Fernández-Codina, Cristina Berastegui, Iago Pinal-Fernández, María Guadalupe Silveira, Manuel López-Meseguer, Víctor Monforte, Alfredo Guillén-Del Castillo, Carmen Pilar Simeón-Aznar, Vicent Fonollosa-Plà, Joan Solé, Carlos Bravo-Masgoret, Antonio Román-Broto
OBJECTIVE: Lung transplantation (LT) has been proposed as a treatment for advanced Interstitial Lung Disease (ILD) and/or Pulmonary Hypertension (PH) associated to Systemic Sclerosis (SSc) but few studies have been reported. The aim of this study was to describe the clinical features, complications and survival of a single-center cohort of patients with SSc that underwent LT and to compare their survival with a group of non-SSc transplanted patients. METHODS: Fifteen patients with SSc were transplanted between May 2005 and April 2015...
April 10, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28405605/three-dimensional-self-navigated-t2-mapping-for-the-detection-of-acute-cellular-rejection-after-orthotopic-heart-transplantation
#2
Ruud B van Heeswijk, Davide Piccini, Piergiorgio Tozzi, Samuel Rotman, Philippe Meyer, Juerg Schwitter, Matthias Stuber, Roger Hullin
BACKGROUND: T2 mapping is a magnetic resonance imaging technique measuring T2 relaxation time, which increases with the myocardial tissue water content. Myocardial edema is a component of acute cellular rejection (ACR) after heart transplantation. This pilot study compares in heart transplantation recipients a novel high resolution 3-dimensional (3D) T2-mapping technique with standard 2-dimensional (2D) T2-mapping for ACR detection. METHODS: Consecutive asymptomatic patients (n = 26) underwent both 3D T2 mapping and reference 2D T2 mapping magnetic resonance imaging on the day of endomyocardial biopsy (EMB)...
April 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28405600/longitudinal-analysis-of-the-intestinal-microbiota-in-liver-transplantation
#3
Karin Kato, Miki Nagao, Kentaro Miyamoto, Kentaro Oka, Motomichi Takahashi, Masaki Yamamoto, Yasufumi Matsumura, Toshimi Kaido, Shinji Uemoto, Satoshi Ichiyama
BACKGROUND: Increasing evidence suggests that the intestinal microbiota plays an important role in liver diseases. However, the dynamics of the intestinal microbiota during liver transplantation (LT) and its potential role in clinical course remain unknown. METHODS: We prospectively analyzed the intestinal microbiota of 38 patients who underwent LT in Kyoto University Hospital. We characterized the microbial compositions of fecal specimens from LT patients using a metagenomics approach by an Illumina MiSeq platform...
April 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28403127/a-randomized-controlled-clinical-trial-comparing-belatacept-with-tacrolimus-after-de-novo-kidney-transplantation
#4
Gretchen de Graav, Carla C Baan, Marian C Clahsen-van Groningen, Rens Kraaijeveld, Marjolein Dieterich, Wenda Verschoor, Jan H von der Thusen, Dave L Roelen, Monique Cadogan, Jacqueline van de Wetering, Joost van Rosmalen, Wilem Weimar, Dennis A Hesselink
BACKGROUND: Belatacept, an inhibitor of the CD28-CD80/86 co-stimulatory pathway, allows for calcineurin-inhibitor free immunosuppressive therapy in kidney transplantation but is associated with a higher acute rejection risk than ciclosporin. Thus, no biomarker for belatacept-resistant rejection has been validated. In this randomized controlled trial, acute rejection-rate was compared between belatacept- and tacrolimus-treated patients and immunological biomarkers for acute rejection were investigated...
April 11, 2017: Transplantation
https://www.readbyqxmd.com/read/28392789/cd16-monocytes-and-skewed-macrophage-polarization-toward-m2-type-hallmark-heart-transplant-acute-cellular-rejection
#5
Thierry P P van den Bosch, Kadir Caliskan, Marina D Kraaij, Alina A Constantinescu, Olivier C Manintveld, Pieter J M Leenen, Jan H von der Thüsen, Marian C Clahsen-van Groningen, Carla C Baan, Ajda T Rowshani
BACKGROUND: During acute heart transplant rejection, infiltration of lymphocytes and monocytes is followed by endothelial injury and eventually myocardial fibrosis. To date, no information is available on monocyte-macrophage-related cellular shifts and their polarization status during rejection. Here, we aimed to define and correlate monocyte-macrophage endomyocardial tissue profiles obtained at rejection and time points prior to rejection, with corresponding serial blood samples in 25 heart transplant recipients experiencing acute cellular rejection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28392336/cd28-biomarker-quantification-and-expression-level-profiles-in-cd4-t-lymphocytes-in-solid-organ-transplantation
#6
Francisco Boix, José Miguel Bolarín, Anna Mrowiec, Jorge Eguía, Gema Gonzalez-Martinez, Jesús de la Peña, José A Galian, Rafael Alfaro, María R Moya-Quiles, Isabel Legaz, José A Campillo, Pablo Ramírez, Ana García-Alonso, Jose A Pons, Francisco Sánchez-Bueno, Alfredo Minguela, Santiago Llorente, Manuel Muro
The introduction of anti-calcineurin-based therapies has led to an increase in the one-year survival as well as graft function rates in patients undergoing solid organ transplantation (SOT). Nonetheless, early cellular acute rejection (EAR) incidence still remains a major challenge that irrevocably heads to poor outcomes. The mechanisms underlying CD4 T cell activation in SOT are still under research. In this sense, CD28 co-stimulatory molecule plays a pivotal role triggering CD4 T cell activation as well as survival maintenance...
April 6, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28375571/hla-mismatching-favoring-host-versus-graft-nk-cell-activity-via-kir3dl1-is-associated-with-improved-outcomes-following-lung-transplantation
#7
John R Greenland, Haibo Sun, Daniel Calabrese, Tiffany Chong, Jonathan P Singer, Jasleen Kukreja, Steven R Hays, Jeffrey A Golden, George H Caughey, Jeffrey M Venstrom, Raja Rajalinginam
Chronic lung allograft dysfunction (CLAD) is linked to rejection and limits survival following lung transplantation. HLA-Bw4 recipients of HLA-Bw6 grafts have enhanced host-versus-graft (HVG) NK cell activity mediated by KIR3DL1 ligand. Because natural killer (NK) cells may promote tolerance by depleting antigen-presenting cells, we hypothesized improved outcomes for HLA-Bw4 recipients of HLA-Bw6 grafts. We evaluated differences in acute cellular rejection (ACR) and CLAD-free survival across 252 KIR3DL1+ recipients from UCSF...
April 4, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28370148/the-serial-duplex-index-improves-differential-diagnosis-of-acute-renal-transplant-dysfunction
#8
Markus Meier, Lutz Fricke, Katrin Eikenbusch, Emma Smith, Jan Kramer, Hendrik Lehnert, Martin Nitschke
OBJECTIVES: Renal duplex sonography represents a standard noninvasive diagnostic procedure to demonstrate morphologic changes in acute kidney transplant dysfunction. We investigated whether a newly developed serial duplex index (SDI) can differentiate between acute cellular rejection and acute vascular rejection more effectively than the established Doppler parameters of the resistive index (RI) and pulsatility index (PI) in recently transplanted patients. METHODS: Serial duplex scans of patients with histologically proven acute tubular necrosis (n = 25), acute cellular rejection (n = 28), acute vascular rejection (n = 18), and normal graft function (n = 50, partially protocol biopsied) were retrospectively analyzed...
April 3, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28366698/steroid-free-immunosuppression-is-associated-with-enhanced-th1-transcripts-in-kidney-transplantation
#9
Petra Hruba, Irena Tycova, Eva Krepsova, Eva Girmanova, Alena Sekerkova, Janka Slatinska, Ilja Striz, Eva Honsova, Ondrej Viklicky
BACKGROUND: Steroid avoidance in immunosuppression in kidney transplantation offers several metabolic advantages, however it is associated with higher early acute rejection rate. Cellular and molecular mechanisms of this phenomenon remain poorly understood. METHODS: In this single center observational study, low-risk kidney transplant recipients randomized into large multicenter prospective ADVANCE trial with steroid avoidance/early withdrawal and center standard of care treated patients were monitored for 12months...
March 30, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28356665/renal-allograft-eosinophilia-an-unusual-presentation-of-sudden-graft-dysfunction
#10
A Yuvaraj, S Ghosh, G Abraham, P Koshy
We present a case of sudden allograft dysfunction 11 months after renal transplantation which presented as severe peripheral and allograft eosinophilia and was managed as a case of an acute cellular rejection with significant interstitial graft eosinophilic infiltration. Patient had partial response to antirejection therapy and eventually ended up in a chronic allograft dysfunction.
March 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28326855/impact-of-postoperative-pulmonary-hypertension-on-outcome-after-heart-transplantation
#11
Jakob Lundgren, Carl Söderlund, Göran Rådegran
OBJECTIVES: We wanted to investigate the effects of postoperative pulmonary hypertension (PHpostop: mean pulmonary artery pressure [MPAP] ≥ 25 mmHg), diastolic pressure gradient (DPG), pulmonary vascular resistance (PVR), and repeated hemodynamic measurements on long-term survival after heart transplantation (HT). DESIGN: Eighty-nine patients who underwent HT at Skåne University Hospital in Lund in the period 1988-2010 and who were evaluated with right-heart-catheterization at rest, prior to HT and repeatedly during the first postoperative year, were grouped based on their MPAP, DPG, and PVR...
June 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28316844/aspergillus-pericarditis-with-tamponade-in-a-renal-transplant-patient
#12
Sylvia Biso, Rapeepat Lekkham, Antoinette Climaco
Aspergillus pericarditis is a rare and life-threatening infection in immunosuppressed patients. It has nonspecific clinical manifestations that often mimic other disease entities especially in patients who have extensive comorbidities. Diagnosis is oftentimes delayed and rarely done antemortem. A high degree of suspicion in immunocompromised patients is necessary for evaluation and timely diagnosis. This is a case of Aspergillus pericarditis with cardiac tamponade in a renal transplant patient with liver cirrhosis...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28314071/epidemiology-risk-factors-and-outcome-of-clostridium-difficile-infection-in-heart-and-heart-lung-transplant-recipients
#13
Jackrapong Bruminhent, Kelly A Cawcutt, Charat Thongprayoon, Tanya M Petterson, Walter K Kremers, Raymund R Razonable
BACKGROUND: Clostridium difficile is a major cause of diarrhea in thoracic organ transplant recipients. We investigated the epidemiology, risk factors, and outcome of Clostridium difficile infection (CDI) in heart and heart-lung transplant (HT) recipients. METHODS: This is a retrospective study from 2004 to 2013. CDI was defined by diarrhea and a positive toxigenic C. difficile in stool measured by toxin enzyme immunoassay (2004-2006) or polymerase chain reaction (2007-2013)...
March 17, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28314052/incidence-of-acute-cellular-rejection-following-granulocyte-colony-stimulating-factor-administration-in-lung-transplantation-a-retrospective-case-cohort-analysis
#14
Nicole Casciello, Amanda Hulbert, Laurie Snyder, Jennifer Byrns
Granulocyte colony-stimulating factor (GCSF) is an option to treat leukopenia in lung transplant recipients. Conflicting evidence exists regarding its effects on acute cellular rejection (ACR). A retrospective, case-cohort study was conducted to assess whether the use of GCSF in lung transplant recipients is associated with an increased incidence of ACR. Patients had to have received at least one dose of GCSF but were excluded if they received GCSF within 30 days prior to transplant or received a lymphocyte-depleting agent within 14 days of GCSF administration...
March 17, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28306671/noninvasive-monitoring-of-acute-and-chronic-rejection-in-heart-transplantation
#15
Maria G Crespo-Leiro, Gonzalo Barge-Caballero, David Couto-Mallon
PURPOSE OF REVIEW: Recent years have seen advances in the early detection of cardiac graft rejection. RECENT FINDINGS: We review the possibilities offered by tissue Doppler imaging and speckle tracking echocardiography, cardiac magnetic resonance, cardiac computed tomography, single positron emission tomography, gene expression profiling, and quantitation of donor-derived cell-free DNA, and microRNAs. SUMMARY: Noninvasive monitoring of acute and chronic rejection after cardiac transplantation is an unmet need and remains a challenge...
March 16, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28299025/interleukin-28b-rs12979860-c-t-polymorphism-and-acute-cellular-rejection-after-liver-transplantation
#16
H Fereidooni, N Azarpira, R Yaghobi, A Vahdati, S A Malek-Hoseini
BACKGROUND: Interleukin-28 (IL-28B) rs12979860 C/T polymorphism is a known predictor of sustained virological response after antiviral treatment in hepatitis C. IL-28B affects the innate immune system as well as intrahepatic expression level of interferon-stimulated genes. OBJECTIVE: To investigate the effect of recipient IL-28B polymorphism on occurrence of acute rejection after liver transplantation. METHODS: 140 liver allograft recipients were selected...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28296035/sepsis-after-renal-transplantation-clinical-immunological-and-microbiological-risk-factors
#17
Thomas Schachtner, Maik Stein, Petra Reinke
BACKGROUND: As immunosuppressive therapy and allograft survival have improved, the increased incidence of sepsis has become a major hurdle of disease-free survival after renal transplantation. METHODS: We identified 112 of 957 kidney transplant recipients (KTRs) with sepsis. 31 KTRs developed severe sepsis or septic shock, and 30 KTRs died from sepsis. KTRs without sepsis were used for comparison. CMV-specific and alloreactive T-cells were measured using an interferon-γ Elispot-assay...
March 11, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28295657/severe-acute-cellular-rejection-after-intestinal-transplantation-is-associated-with-poor-patient-and-graft-survival
#18
Genevieve Huard, Thomas D Schiano, Jang Moon, Kishore Iyer
BACKGROUND: Severe acute cellular rejection (ACR) occurs frequently after intestinal transplantation (ITx). AIM: To evaluate the outcomes and the risk factors for graft failure and mortality in patients with severe ACR after ITx. METHODS: Retrospective study evaluating all ITx recipients who developed severe ACR between 01/2000 and 07/2014. Demographic and histologic data were reviewed. RESULTS: 20/126 (15.9%) ITx recipients developed severe ACR...
March 10, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28280702/mycophenolate-mofetil-toxicity-mimicking-acute-cellular-rejection-in-a-small-intestinal-transplant
#19
Ross Apostolov, Khashayar Asadi, Julie Lokan, Ning Kam, Adam Testro
Mycophenolate mofetil (MMF) is an important medication used for maintenance immunosuppression in solid organ transplants. A common gastrointestinal (GI) side effect of MMF is enterocolitis, which has been associated with multiple histological features. There is little data in the literature describing the histological effects of MMF in small intestinal transplant (SIT) recipients. We present a case of MMF toxicity in a SIT recipient, with histological changes in the donor ileum mimicking persistent acute cellular rejection (ACR)...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28273390/purpureocillium-lilacinum-tattoo-related-skin-infection-in-a-kidney-transplant-recipient
#20
Sonya A Trinh, Michael P Angarone
Purpureocillium lilacinum is an emerging pathogenic mold among immunocompromised hosts that causes cutaneous infections related to skin breakdown. We present the first reported case of P. lilacinum tattoo-related skin infection, to our knowledge. A kidney transplant recipient recently treated for acute cellular rejection presented with skin papules overlying a tattoo. Diagnosis was confirmed on culture, histology, and 18S ribosomal RNA polymerase chain reaction. The morphological features on culture characteristic of P...
March 8, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
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