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https://www.readbyqxmd.com/read/29344502/orbital-epstein-barr-virus-positive-polymorphic-b-cell-lymphoproliferative-disorder-in-an-apparently-immunocompetent-woman
#1
Michael D Abendroth, Michael G Bayerl, Michael J Wilkinson, David F Claxton, Charles S Specht
We report a rare case of Epstein-Barr virus (EBV)-positive polymorphic B-cell lymphoproliferative disorder (LPD) involving the lacrimal gland of a 28-year-old, apparently immunocompetent woman. She presented with a chief complaint of orbital swelling and tenderness and was found to have a lesion involving the right lacrimal gland and distal superior and lateral rectus muscles. Histology of the lesion revealed histiocytes with pleomorphic nuclei, reactive lymphocytes, and scattered cells that resembled the Reed-Sternberg (R-S) cells of classical Hodgkin lymphoma...
December 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29342998/-x-linked-immunodeficiency-with-magnesium-defect-epstein-barr-virus-infection-and-neoplasia-report-of-a-family-and-literature-review
#2
T Y He, Y Xia, C G Li, C R Li, Z X Qi, J Yang
Objective: To investigate the clinical features and genetic characteristics of cases with X-linked immunodeficiency with magnesium defect, Epstein-Barr virus (EBV) infection, and neoplasia (XMEN). Methods: Characteristics of clinical material, immunological data and gene mutation of two cases with XMEN in the same family in China were retrospectively analyzed. The related reports literature were searched by using search terms'MAGT1 gene'or'XMEN'. Results: The proband, a 2-year-eight-month old boy, was admitted due to 'Urine with deepened color for two days and yellow stained skin for one day'...
January 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29342279/incidence-and-predictors-of-post-transplant-lymphoproliferative-disease-after-kidney-transplantation-during-adulthood-and-childhood-a-registry-study
#3
Anna Francis, David W Johnson, Armando Teixeira-Pinto, Jonathan C Craig, Germaine Wong
Background: Differences in the epidemiology of post-transplant lymphoproliferative disease (PTLD) between adult and paediatric kidney transplant recipients remain unclear. Methods: Using the Australian and New Zealand Dialysis and Transplant Registry (1963-2015), the cumulative incidences of PTLD in children (age <20 years) and adults were calculated using a competing risk of death model and compared with age-matched population-based data using standardized incidence ratios (SIRs)...
January 12, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29337376/crispr-cas9-mediated-genome-editing-in-epstein-barr-virus-transformed-lymphoblastoid-b-cell-lines
#4
Sizun Jiang, Liang Wei Wang, Michael J Walsh, Stephen J Trudeau, Catherine Gerdt, Bo Zhao, Benjamin E Gewurz
Epstein-Barr virus (EBV) efficiently transforms primary human B cells into immortalized lymphoblastoid cell lines (LCLs), which are extensively used in human genetic, immunological and virological studies. LCLs provide unlimited sources of DNA for genetic investigation, but can be difficult to manipulate, for instance because low retroviral or lentiviral transduction frequencies hinder experiments that require co-expression of multiple components. This unit details Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 engineering for robust LCL genome editing...
January 16, 2018: Current Protocols in Molecular Biology
https://www.readbyqxmd.com/read/29336635/lymphomatoid-granulomatosis-in-a-14-year-old-boy-with-trisomy-21-and-history-of-b-lymphoblastic-leukemia-lymphoma
#5
Anna Paulina Matynia, Sherrie L Perkins, David Li
BACKGROUND: Lymphomatoid granulomatosis is a EBV-driven lymphoproliferative disorder that has been reported in association with immunodeficiency, but only exceptionally in patients with hematopoietic malignancy. CASE REPORT: A 14-year-old boy with trisomy-21 and a history of B-lymphoblastic leukemia/lymphoma (B-ALL) diagnosed 1.5 years prior, on maintenance chemotherapy, presented with fever and respiratory symptoms. Chest X-ray revealed right-lower-lobe consolidation...
January 16, 2018: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/29327714/a-comprehensive-flow-cytometry-based-immunophenotypic-characterization-of-burkitt-like-lymphoma-with-11q-aberration
#6
Grzegorz Rymkiewicz, Beata Grygalewicz, Magdalena Chechlinska, Katarzyna Blachnio, Zbigniew Bystydzienski, Joanna Romejko-Jarosinska, Renata Woroniecka, Michalina Zajdel, Katarzyna Domanska-Czyz, David Martin-Garcia, Ferran Nadeu, Pawel Swoboda, Jolanta Rygier, Barbara Pienkowska-Grela, Jan Konrad Siwicki, Monika Prochorec-Sobieszek, Itziar Salaverria, Reiner Siebert, Jan Walewski
We previously described a subset of MYC translocation-negative aggressive B-cell lymphomas resembling Burkitt lymphoma, characterized by proximal gains and distal losses in chromosome 11. In the 2016 WHO classification, these MYC-negative lymphomas were recognized as a new provisional entity, 'Burkitt-like lymphoma with 11q aberration'. Here we present an immunophenotype analysis of Burkitt-like lymphomas with 11q aberration. Cells were acquired by fine needle aspiration biopsy from 10 young adult patients, 80% of whom presented recurrence-free 5-year survival...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29327711/cd3-positive-plasmablastic-b-cell-neoplasms-a-diagnostic-pitfall
#7
Zenggang Pan, Mingyi Chen, Qianyun Zhang, Endi Wang, Liqun Yin, Youyuan Xu, Qin Huang, Youzhong Yuan, Xiaohui Zhang, Gang Zheng, Ji Yuan
Rare B-cell neoplasms with plasmablastic differentiation may aberrantly express CD3 by immunohistochemical staining, which places a great challenge for diagnosis. We here studied 17 cases of CD3+ plasmablastic B-cell neoplasms, including 12 plasmablastic lymphomas and 5 plasmablastic plasma cell myelomas. All 17 cases occurred in the extranodal sites with a male predominance (13/17). Four cases were initially misinterpreted by outside institutions, among which three were diagnosed as 'peripheral T-cell lymphoma, not otherwise specified' and one was classified as 'poorly differentiated neuroendocrine carcinoma'...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29317752/epstein-barr-virus-encoded-rnas-ebers-complement-the-loss-of-herpesvirus-telomerase-rna-vtr-in-virus-induced-tumor-formation
#8
Ahmed Kheimar, Benedikt B Kaufer
Marek's disease virus (MDV) is an alphaherpesvirus that causes fatal lymphomas in chickens and is used as a natural virus-host model for herpesvirus-induced tumorigenesis. MDV encodes a telomerase RNA subunit (vTR) that is crucial for efficient MDV-induced lymphoma formation; however, the mechanism is not completely understood. Similarly, Epstein Barr-virus (EBV) encodes two RNAs (EBER-1 and EBER-2) that are highly expressed in EBV-induced tumor cells, however their role in tumorigenesis remains unclear. Intriguingly, vTR and EBER-1 have interaction partners in common that are highly conserved in humans and chickens...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29316828/hodgkin-s-lymphoma-and-its-association-with-ebv-and-hiv-infection
#9
Ravnit Grewal, Alexandra Irimie, Nasheen Naidoo, Nooroudien Mohamed, Bobe Petrushev, Manogari Chetty, Ciprian Tomuleasa, Emmanuel-Akinola Abayomi
Hodgkin's lymphoma (HL) constitutes a clonal expansion of what appears to be malignant B cells. Viruses are involved in its pathogenesis, such as the Epstein-Barr virus (EBV) and human immunodeficiency virus (HIV). Since these viral infections have been shown to play key roles in the pathogenesis of HL, countries with a prevalence of HIV and EBV represent interesting population targets to study the pathogenesis of HL, linking the evolution of the disease with viral infections. Usually, patients present with late stage disease often involving the bone marrow at the time of diagnosis...
January 9, 2018: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/29314151/comparison-of-ebv-positive-mucocutaneous-ulcer-ebvmcu-associated-with-treated-lymphoma-or-methotrexate-in-japan
#10
Teerada Daroontum, Kei Kohno, Ahmed E Eladl, Akira Satou, Ayako Sakakibara, Shoichi Matsukage, Naoki Yakushiji, Charin Ya-In, Shigeo Nakamura, Naoko Asano, Seiichi Kato
AIMS: The present study compared treated lymphoma-associated EBV-positive mucocutaneous ulcer (EBVMCU) and methotrexate (MTX)-associated EBVMCU. METHODS AND RESULTS: Of a series of 15 Japanese patients (11 women, 4 men; median age 74 years, range 35-84 years). 7 received MTX for autoimmune disease and 8 developed EBVMCU after treatment of malignant lymphoma (diffuse large B-cell lymphoma [n=4] without EBV association, adult T-cell leukaemia/lymphoma [n=2], angioimmunoblastic T-cell lymphoma [n=1], and follicular lymphoma [n=1])...
January 4, 2018: Histopathology
https://www.readbyqxmd.com/read/29311309/signaling-by-the-epstein-barr-virus-lmp1-protein-induces-potent-cytotoxic-cd4-and-cd8-t-cell-responses
#11
Il-Kyu Choi, Zhe Wang, Qiang Ke, Min Hong, Yu Qian, Xiujuan Zhao, Yuting Liu, Hye-Jung Kim, Jerome Ritz, Harvey Cantor, Klaus Rajewsky, Kai W Wucherpfennig, Baochun Zhang
The B-lymphotropic Epstein-Barr virus (EBV), pandemic in humans, is rapidly controlled on initial infection by T cell surveillance; thereafter, the virus establishes a lifelong latent infection in the host. If surveillance fails, fatal lymphoproliferation and lymphomagenesis ensue. The initial T cell response consists of predominantly CD8+ cytotoxic T cells and a smaller expansion of CD4+ cells. A major approach to treating EBV-associated lymphomas is adoptive transfer of autologous or allogeneic T cells that are stimulated/expanded on EBV-transformed B cells...
January 8, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29310365/ebv-lymphoproliferative-associated-disease-and-primary-cardiac-t-cell-lymphoma-in-a-stk4-deficient-patient-a-case-report
#12
Roya Sherkat, Mohammad Reza Sabri, Bahar Dehghan, Hamid Bigdelian, Nahid Reisi, Nooshin Afsharmoghadam, Hamid Rahimi, Narges Rahmanian, Cristoph Klein
RATIONALE: Primary cardiac lymphoma (PLC) is an extremely uncommon malignancy. PCL is more common in secondary immunodeficient patients. In this report, we describe a unique case of PLC who had been diagnosed as a STK4 deficient patient. This case is the first Primary immunodeficiency (PID) patient developing PCL in the world. PATIENT CONCERNS: An eleven-year-old girl, a known case of PID, was referred to the pediatric cardiology department because of chest pain and dyspnea...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29303964/new-interactors-of-the-truncated-ebna-lp-protein-identified-by-mass-spectrometry-in-p3hr1-burkitt-s-lymphoma-cells
#13
Sonia Chelouah, Emilie Cochet, Sophie Couvé, Sandy Balkaran, Aude Robert, Evelyne May, Vasily Ogryzko, Joëlle Wiels
The Epstein-Barr virus nuclear antigen leader protein (EBNA-LP) acts as a co-activator of EBNA-2, a transcriptional activator essential for Epstein-Barr virus (EBV)-induced B-cell transformation. Burkitt's lymphoma (BL) cells harboring a mutant EBV strain that lacks both the EBNA-2 gene and 3' exons of EBNA-LP express Y1Y2-truncated isoforms of EBNA-LP (tEBNA-LP) and better resist apoptosis than if infected with the wild-type virus. In such BL cells, tEBNA-LP interacts with the protein phosphatase 2A (PP2A) catalytic subunit (PP2A C), and this interaction likely plays a role in resistance to apoptosis...
January 5, 2018: Cancers
https://www.readbyqxmd.com/read/29296917/checkpoint-blockade-in-hodgkin-and-non-hodgkin-lymphoma
#14
REVIEW
Reid W Merryman, Philippe Armand, Kyle T Wright, Scott J Rodig
Classical Hodgkin lymphoma (cHL) is characterized by nearly universal genetic alterations in 9p24.1, resulting in constitutive expression of PD-1 ligands. This likely underlies the unique sensitivity of cHL to PD-1 blockade, with response rates of ∼70% in relapsed/refractory disease. There are now numerous clinical trials testing PD-1 inhibitors in earlier stages of treatment and in combination with many other therapies. In general, non-Hodgkin lymphomas (NHLs) do not display a high frequency of 9p24.1 alterations and do not share cHL's vulnerability to PD-1 blockade...
December 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296913/clinicopathologic-consensus-study-of-gray-zone-lymphoma-with-features-intermediate-between-dlbcl-and-classical-hl
#15
Monika Pilichowska, Stefania Pittaluga, Judith A Ferry, Jessica Hemminger, Hong Chang, Jennifer A Kanakry, Laurie H Sehn, Tatyana Feldman, Jeremy S Abramson, Athena Kritharis, Francisco J Hernandez-Ilizaliturri, Izidore S Lossos, Oliver W Press, Timothy S Fenske, Jonathan W Friedberg, Julie M Vose, Kristie A Blum, Deepa Jagadeesh, Bruce Woda, Gaurav K Gupta, Randy D Gascoyne, Elaine S Jaffe, Andrew M Evens
Gray zone lymphoma (GZL) is described as sharing features with classical Hodgkin lymphoma (cHL) and diffuse large B-cell lymphoma (DLBCL). However, there remains complexity in establishing diagnosis, delineating prognosis, and determining optimum therapy. Sixty-eight cases diagnosed as GZL across 15 North American academic centers were evaluated by central pathology review to achieve consensus. Of these, only 26 (38%) were confirmed as GZL. Morphology was critical to GZL consensus diagnosis (eg, tumor cell richness); immunohistochemistry showed universal B-cell derivation, frequent CD30 expression, and rare Epstein-Barr virus (EBV) positivity (CD20+, 83%; PAX5+, 100%; BCL6+, 20%; MUM1+, 100%; CD30+, 92%; EBV+, 4%)...
December 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296775/th17-immune-microenvironment-in-epstein-barr-virus-negative-hodgkin-lymphoma-implications-for-immunotherapy
#16
Amy S Duffield, Maria Libera Ascierto, Robert A Anders, Janis M Taube, Alan K Meeker, Shuming Chen, Tracee L McMiller, Neil A Phillips, Haiying Xu, Aleksandra Ogurtsova, Alan E Berger, Drew M Pardoll, Suzanne L Topalian, Richard F Ambinder
Classical Hodgkin lymphoma (CHL) is a neoplasm characterized by robust inflammatory infiltrates and heightened expression of the immunosuppressive PD-1/PD-L1 pathway. Although anti-PD-1 therapy can be effective in >60% of patients with refractory CHL, improved treatment options are needed for CHLs which are resistant to anti-PD-1 or relapse after this form of immunotherapy. A deeper understanding of immunologic factors in the CHL microenvironment might support the design of more effective treatment combinations based on anti-PD-1...
July 25, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296710/epstein-barr-virus-dna-in-serum-as-an-early-prognostic-marker-in-children-and-adolescents-with-hodgkin-lymphoma
#17
Jennifer J G Welch, Cindy L Schwartz, Meghan Higman, Lu Chen, Allen Buxton, Jennifer A Kanakry, Samir B Kahwash, Robert E Hutchison, Debra L Friedman, Richard F Ambinder
Assay of cell-free DNA in blood offers an approach to assessment of tumor DNA. We sought to determine whether Epstein-Barr virus (EBV) DNA in cell-free blood is also a good surrogate for the presence of tumor DNA in children with Hodgkin lymphoma, as it is in adults, and whether it correlates with pediatric outcomes. Pediatric patients enrolled in a Children's Oncology Group trial (AHOD0031) were studied at baseline and at 8 days after the initiation of treatment. At baseline, EBV DNA in cell-free blood correlated with the presence of EBV in tumor, and EBV DNA 8 days after the initiation of therapy predicted inferior event-free survival...
April 25, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296171/micrornas-sequencing-unveils-distinct-molecular-subgroups-of-plasmablastic-lymphoma
#18
Maria Raffaella Ambrosio, Lucia Mundo, Sara Gazaneo, Matteo Picciolini, Prasad Satya Vara, Shaheen Sayed, Alessandro Ginori, Giuseppe Lo Bello, Leonardo Del Porro, Mohsen Navari, Stefano Ascani, Amhed Yonis, Lorenzo Leoncini, Pier Paolo Piccaluga, Stefano Lazzi
Plasmablastic lymphoma (PBL) is an aggressive lymphoma, often arising in the context of immunodeficiency and associated with Epstein-Barr virus (EBV) infection. The most frequently detected genetic alteration is the deregulation of MYC gene through the translocation - t(8;14)(q24;q32). The diagnosis of PBL is often challenging because it has an overlap in morphology, immunophenotype, cytogenetics and virus association with other lymphomas and plasma cell neoplasms; further, its molecular basis remains elusive...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29282224/loss-of-rasgrp1-in-humans-impairs-t-cell-expansion-leading-to-epstein-barr-virus-susceptibility
#19
Sarah Winter, Emmanuel Martin, David Boutboul, Christelle Lenoir, Sabah Boudjemaa, Arnaud Petit, Capucine Picard, Alain Fischer, Guy Leverger, Sylvain Latour
Inherited CTPS1, CD27, and CD70 deficiencies in humans have revealed key factors of T-lymphocyte expansion, a critical prerequisite for an efficient immunity to Epstein-Barr virus (EBV) infection. RASGRP1 is a T-lymphocyte-specific nucleotide exchange factor known to activate the pathway of MAP kinases (MAPK). A deleterious homozygous mutation in RASGRP1 leading to the loss RASGRP1 expression was identified in two siblings who both developed a persistent EBV infection leading to Hodgkin lymphoma. RASGRP1-deficient T cells exhibited defective MAPK activation and impaired proliferation that was restored by expression of wild-type RASGRP1...
December 27, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29279693/a-rare-case-of-classical-hodgkin-lymphoma-diagnosed-10-years-after-liver-transplant
#20
L Zhang, R Pereira Mestre, F Bihl, M Bühler, B Vannata, A Stathis
Posttransplant lymphoproliferative disorders (PTLD) represent a rare and potentially life-threatening complication after liver transplantation. Classical Hodgkin lymphoma (cHL), with an incidence of approximately 1.8-3.4% of all PTLD cases, represents a minority of PTLD, mainly presenting as a late transplant complication. The main risk factors for the development of PTLD are Epstein-Barr virus (EBV) infection and intensive immunosuppression. However, other risk factors like hepatitis C virus may, together with EBV infection, contribute to the development of PTLD...
September 2017: Case Reports in Oncology
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