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https://www.readbyqxmd.com/read/28419429/mutational-landscape-of-b-cell-post-transplant-lymphoproliferative-disorders
#1
Thomas Menter, Darius Juskevicius, Mary Alikian, Juerg Steiger, Stephan Dirnhofer, Alexandar Tzankov, Kikkeri N Naresh
It is currently unclear whether post-transplant diffuse large B-cell lymphomas (PT-DLBCL) display a similar genomic landscape as DLBCL in immunocompetent patients (IC-DLBCL). We investigated 50 post-transplant lymphoproliferative disorders (PTLDs) including 37 PT-DLBCL samples for somatic mutations frequently observed in IC-DLBCL. Targeted Next Generation Sequencing (NGS) using the Ion Torrent platform and a customized panel of 68 genes was performed on genomic DNA. Non-tumoural tissue was sequenced to exclude germline variants in cases where available...
April 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28392824/posttransplantation-lymphoproliferative-disorder-after-pediatric-solid-organ-transplantation-experiences-of-20-years-in-a-single-center
#2
Hyung Joo Jeong, Yo Han Ahn, Eujin Park, Youngrok Choi, Nam-Joon Yi, Jae Sung Ko, Sang Il Min, Jong Won Ha, Il-Soo Ha, Hae Il Cheong, Hee Gyung Kang
PURPOSE: To evaluate the clinical spectrum of posttransplantation lymphoproliferative disorder (PTLD) after solid organ transplantation (SOT) in children. METHODS: We retrospectively reviewed the medical records of 18 patients with PTLD who underwent liver (LT) or kidney transplantation (KT) between January 1995 and December 2014 in Seoul National University Children's Hospital. RESULTS: Eighteen patients (3.9% of pediatric SOTs; LT:KT, 11:7; male to female, 9:9) were diagnosed as having PTLD over the last 2 decades (4...
March 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28390107/post-transplant-lymphoproliferative-disorder-following-clinical-islet-transplantation-report-of-the-first-two-cases
#3
Anthea Peters, Tolu Olateju, Jean Deschenes, Santosh H Shankarnarayan, Neil Chua, A M James Shapiro, Peter Senior
We report the first two cases of post-transplant lymphoproliferative disorder (PTLD) in recipients of islet transplants worldwide. First, a 44-year old recipient of 3 islet infusions developed PTLD 80 months after his initial transplant, presenting with abdominal pain and diffuse terminal ileum thickening on imaging. He was treated with surgical excision, reduction of immunosuppression and rituximab. Seven months later he developed central nervous system PTLD, presenting with vertigo and diplopia; immunosuppression was discontinued, resulting in graft loss, and he was given high-dose methotrexate and consolidative autologous stem cell transplant...
April 8, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28383790/post-transplant-lymphoproliferative-disease-in-lung-transplantation-a-nested-case-control-study
#4
Annelies Leyssens, Daan Dierickx, Eric K Verbeken, Thomas Tousseyn, Stijn E Verleden, Bart M Vanaudenaerde, Lieven J Dupont, Jonas Yserbyt, Geert M Verleden, Dirk E Van Raemdonck, Robin Vos
Post-transplant lymphoproliferative disorder (PTLD) may compromise long-term outcome of lung transplant (LTx) recipients. A case-control study was performed, comparing LTx recipients with PTLD (n=31) to matched recipients without PTLD (Controls, n=62). Risk factors for PTLD and post-transplant outcomes were assessed. PTLD prevalence was 3.9%, time to PTLD 323 (166-1132) days; and 54.8% had early-onset PTLD versus 45.2% late-onset PTLD. At LTx, more Epstein-Barr virus (EBV)-seronegative patients were present in PTLD (42%) compared to Controls (5%) (p<0...
April 6, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28376031/the-immune-response-to-epstein-barr-virus-and-implications-for-posttransplant-lymphoproliferative-disorder
#5
Olivia M Martinez, Sheri M Krams
Posttransplant lymphoproliferative disorder (PTLD) is a serious complication in organ transplant recipients and is most often associated with the Epstein Barr virus (EBV). EBV is a common gammaherpes virus with tropism for B lymphocytes and infection in immunocompetent individuals is typically asymptomatic and benign. However, infection in immunocompromised or immunosuppressed individuals can result in malignant B cell lymphoproliferations such as PTLD. EBV+ PTLD can arise following primary EBV infection, or because of reactivation of a prior infection, and represents a leading malignancy in the transplant population...
April 4, 2017: Transplantation
https://www.readbyqxmd.com/read/28355720/-the-clinical-characteristics-of-adult-hemophagocytic-lymphohistiocytosis-treated-with-haploidentical-donor-hematopoietic-stem-cell-transplantation
#6
L Fu, N Wei, J S Wang, L Wu, Y N Wang, D Y Huang, J L Liu, Z Wang
Objective: To analyze the clinical characteristics of adult patients with hemophagocytic lymphohistiocytosis (HLH) receiving haploidentical donor hematopoietic stem cell transplantation (HID HSCT). Method: We retrospectively reviewed 20 adult patients with HLH from August 2009 to August 2014.The clinical features and outcome were analyzed. Results: Conditioning regimens consisted of total body irradiation/etoposide/cyclophosphamide (TBI/VP-16/CTX) and busulfan (Bu)/VP-16/CTX in HLH with anti-thymocyte globulin (ATG) 8 mg/kg...
April 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28340951/epstein-barr-virus-hemophagocytic-lymphohistiocytosis-related-to-rituximab-use-and-immunopathogenetic-insights
#7
Sotirios G Papageorgiou, Sotirios Tsiodras, Georgios Siakallis, Efthimia Bazani, Aris Spathis, Garyfalia Poulakou, Penelope Korkolopoulou, Ioannis Panayiotides, Vasiliki Pappa
Anti-CD20-based chemo-immunotherapeutic regimens have been suggested to assist in the management of Epstein-Barr virus (EBV)-induced hemophagocytic lymphohistiocytosis (HLH) and EBV-associated post-transplant lymphoproliferative disorders (EBV-PTLD), by reducing EBV viral load and EBV-induced inflammation. Herein we report a fatal EBV-related HLH in the context of Hodgkin lymphoma (HL)-like Richter's transformation of B chronic lymphocytic leukemia (B-CLL), two months after rituximab treatment. The complex balance between EBV driven T-cell stimulation and immunosuppressive therapy in the context of multiple immune deficits is discussed...
December 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28316109/airway-inflammation-and-symptoms-in-children-following-liver-and-heart-transplantation
#8
Andrew J Redmann, John C Bucuvalas, Robert E Wood, Clifford Chin, Catherine K Hart
OBJECTIVES: To describe the upper airway endoscopic findings of children with upper airway symptoms after liver transplantation (LT) or heart transplantation (HT). METHODS: Review of children undergoing airway endoscopy after LT or HT from 2011 to 2015 at a tertiary care pediatric hospital. Airway findings, biopsy results, immunosuppression, and Epstein-Barr virus (EBV) levels were recorded. RESULTS: Twenty-three of 158 LT (111) and HT (47) recipients underwent endoscopy...
March 18, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28280938/viral-load-of-ebv-dnaemia-is-a-predictor-of-ebv-related-post-transplant-lymphoproliferative-disorders-in-pediatric-renal-transplant-recipients
#9
Elisa Colombini, Isabella Guzzo, Federica Morolli, Germana Longo, Cristina Russo, Alessandra Lombardi, Pietro Merli, Luisa Barzon, Luisa Murer, Simone Piga, Marta Luisa Ciofi Degli Atti, Franco Locatelli, Luca Dello Strologo
BACKGROUND: Post-transplant lymphoproliferative disorder (PTLD) is a severe complication of solid organ transplantation that can be classified into two major subtypes, namely, early lesions and non-early lesions, based on histopathological findings. In the vast majority of cases, proliferating cells are B lymphocytes and, most frequently, proliferation is induced by Epstein-Barr virus (EBV) infection. METHODS: The aim of our study was to evaluate the natural history of EBV infection and its possible evolution toward PTLD in a pediatric cohort of patients who received a renal transplant between January 2000 and December 2013...
March 9, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28265581/impact-of-desensitization-on-antiviral-immunity-in-hla-sensitized-kidney-transplant-recipients
#10
Mieko Toyoda, Bong-Ha Shin, Shili Ge, James Mirocha, David Thomas, Maggie Chu, Edgar Rodriguez, Christine Chao, Anna Petrosyan, Odette A Galera, Ashley Vo, Jua Choi, Alice Peng, Joseph Kahwaji, Stanley C Jordan
Viral infections represent significant morbidity and mortality factors in kidney transplant recipients, with CMV, EBV, and BKV infections being most common. Desensitization (DES) with IVIg and rituximab with/without plasma exchange followed by kidney transplantation with alemtuzumab induction increased successful transplant rates in HLA-sensitized patients but may represent an increased risk for viral infections due to severe lymphocyte depletion. Here, we report on the posttransplant viral infection status in 372 DES versus 538 non-DES patients...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28191298/asymptomatic-epstein-barr-virus-shedding-in-the-urine-of-kidney-transplant-recipients-case-reports-and-review-of-the-literature
#11
Maryam Rahbar, Gholamreza Poormand, Masoud Karkhaneh Mahmoodi, Aboozar Jazayeri, Seyed Mohammad Jazayeri
Epstein-Barr virus (EBV) is associated with a wide range of malignancies and complications like post-transplant lymphoproliferative disorder (PTLD). To suppress active EBV infection in transplant recipients, who are at a heightened risk of developing PTLD, EBV DNAemia monitoring has been recommended. Quantitative multiplex real time polymerase chain reaction (QMRTPCR) offered the advantage of detection of more than one target in the same sample. We present four cases of kidney transplant recipient who were admitted for rising serum creatinine between 9 and 20 months post-transplant with a suspicion of BKV-associated nephropathy...
December 31, 2016: Infectious Disease Reports
https://www.readbyqxmd.com/read/28116196/a-rare-presentation-of-isolated-cns-posttransplantation-lymphoproliferative-disorder
#12
Jaime Morris, Casey Smith, Andrew Streicher, Allison Magnuson, Susan Newman, Robert Bertoli
Posttransplantation lymphoproliferative disorder (PTLD) is a recognized and extremely morbid complication of solid organ transplantation, but central nervous system involvement, particularly in isolation, is rare. There are no standardized treatment strategies for PTLD, though commonly used strategies include reduction of immunosuppression, chemotherapy, rituximab, radiation, and surgery. We present a case of an unusual morphologic variant of primary central nervous system PTLD with successful response to rituximab and cranial radiation...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28089555/epstein-barr-virus-and-renal-transplantation
#13
REVIEW
Jade Le, Christine M Durand, Irfan Agha, Daniel C Brennan
Epstein-Barr virus (EBV) is a gamma herpesvirus associated with diseases ranging from asymptomatic viremia to post-transplant malignancies in kidney transplant recipients. EBV specifically is associated with post-transplantation lymphoproliferative disorder (PTLD), in kidney transplant recipients, with increased risk in EBV seronegative patients with EBV seropositive donors on intensified immunosuppression. The diagnosis of PTLD relies on clinical suspicion plus tissue biopsy with polymerase chain reaction (PCR) testing of blood currently used for risk determination in high-risk recipients...
January 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28058224/persistent-epstein-barr-viral-load-in-epstein-barr-viral-na%C3%A3-ve-pediatric-heart-transplant-recipients-risk-of-late-onset-post-transplant-lymphoproliferative-disease
#14
Bibhuti Das, Robert Morrow, Rong Huang, David Fixler
AIM: To examine the risk of late-onset post-transplant lymphoproliferative disorder (PTLD) in the presence of persisting high Epstein-Barr virus (EBV) in EBV naïve pediatric heart transplant (HT) recipients. METHODS: A retrospective review of the medical records of the 145 pediatric HT recipients who had serial EBV viral load monitoring at our center was performed. We defined EBV naive patients whose EBV serology either IgM or IgG in the blood were negative at the time of HT and excluded passive transmission from mother to child in subjects less than 6 mo of age...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28039929/epstein-barr-virus-dna-monitoring-in-serum-and-whole-blood-in-pediatric-liver-transplant-recipients-who-do-or-do-not-discontinue-immunosuppressive-therapy
#15
C Kullberg-Lindh, R Saalman, M Olausson, G Herlenius, M Lindh
The rate of PTLD can be reduced by weaned IS guided by monitoring of EBV DNA. In this single-center retrospective case series study, we analyzed how reduction in IS influenced EBV DNA levels in whole blood and serum in 30 children during the first year after liver transplantation, and how these levels were related to symptoms putatively due to EBV. Primary and reactivated EBV infection was seen in 18 (60%) and eight patients (27%), respectively. Thirteen patients (42%) developed chronic high load the first year post-transplant...
December 31, 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/28039080/risk-factors-for-and-the-clinical-impact-of-cytomegalovirus-and-epstein-barr-virus-infections-in-pediatric-recipients-of-tcr-%C3%AE-%C3%AE-and-cd19-depleted-grafts
#16
Alexandra Laberko, Anna Bogoyavlenskaya, Larisa Shelikhova, Zhanna Shekhovtsova, Dmitriy Balashov, Kirill Voronin, Elena Kurnikova, Elena Boyakova, Elena Raykina, Varvara Brilliantova, Valentina Pirumova, Galina Novichkova, Alexei Maschan, Michael Maschan
Alpha/beta T cell and CD19 depletion are used to improve the outcomes of hematopoietic stem cell transplantation (HSCT). We evaluated the burden of cytomegalovirus (CMV) and Epstein-Barr virus (EBV) in pediatric patients after this HSCT type. A cohort of 182 patients with malignant (n = 114) or nonmalignant (n = 68) disorders was transplanted from either matched unrelated (n = 124) or haploidentical (n = 58) donors. The cumulative incidence of CMV and EBV viremia were 51% and 33%, respectively...
March 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27993575/b-cell-post-transplant-lymphoproliferative-disorder-isolated-to-the-central-nervous-system-is-ebv-positive-and-lacks-p53-and-myc-expression-by-immunohistochemistry
#17
Andrew Sundin, Bartosz J Grzywacz, Sophia Yohe, Michael A Linden, Elizabeth L Courville
In this retrospective study from one institution, we performed a clinicopathologic study of a cohort of patients with post-transplant lymphoproliferative disorder (PTLD) confined to the central nervous system. We also identified a comparison cohort of patients with de novo primary diffuse large B-cell lymphoma of the central nervous system. We performed a detailed morphologic review, evaluated Epstein-Barr Virus (EBV) by in-situ hybridization, and interpreted a panel of immunohistochemical stains in a subset of cases including Hans classification markers (CD10, BCL6, MUM1), p53, CD30, myc, and BCL2...
December 16, 2016: Human Pathology
https://www.readbyqxmd.com/read/27906865/management-of-post-transplant-lymphoproliferative-disorders
#18
Gabriela Llaurador, Lauren McLaughlin, Birte Wistinghausen
PURPOSE OF REVIEW: Post-transplant lymphoproliferative disease (PTLD) is a major complication of hematopoietic stem cell and solid organ transplantation. The incidence of transplantation in childhood has been steadily rising, making PTLD the most common form of lymphoproliferation in childhood. The purpose of this review is to summarize the role of the Epstein-Barr virus (EBV) in the pathophysiology and discuss the management of PTLD. RECENT FINDINGS: More than 90% of pediatric PTLD is EBV-positive...
February 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27852687/incidental-ebv-positivity-in-paediatric-post-transplant-specimens-demonstrates-the-need-for-stringent-criteria-for-diagnosing-post-transplant-lymphoproliferative-disorders
#19
Rebecca L King, Michele E Paessler, Matthew T Howard, Gerald B Wertheim
AIMS: To examine the need for minimal diagnostic criteria for post-transplant lymphoproliferative disorders (PTLD) in children, we sought to determine the rate of incidental Epstein-Barr virus (EBV)-positivity in tissues from organ transplant recipients (OTR). METHODS: EBV in situ hybridisation (ISH) was done retrospectively on tissue from 34 paediatric autopsies of OTR and paediatric tonsillectomy specimens from non-OTR (96) and OTR (6). Patients with a history of PTLD were excluded from both data sets...
March 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27772621/oncogenic-%C3%AE-herpesviruses-ebv-and-hhv8-in-kidney-transplantation
#20
REVIEW
Jade Le
Epstein-Barr virus (EBV) and human herpesvirus-8 (HHV-8) are γ herpesviruses associated with post-transplant malignancies in kidney transplant recipients. EBV is associated with post-transplantation lymphoproliferative disorder (PTLD), with increased risk in EBV-seronegative patients on intensified immunosuppression. Human herpesvirus-8 is associated with Kaposi's sarcoma (KS), with an increased risk in certain patient populations. Diagnosis of PTLD and KS relies on tissue biopsy. The mainstay of therapy for both PTLD and Kaposi's sarcoma is a reduction of immunosuppression, and in the case of PTLD, consideration of rituximab...
September 2016: Seminars in Nephrology
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