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Lymphoma, EBV

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https://www.readbyqxmd.com/read/28339079/a-p110%C3%AE-specific-inhibitor-combined-with-bortezomib-blocks-drug-resistance-properties-of-ebv-related-b-cell-origin-cancer-cells-via-regulation-of-nf-%C3%AE%C2%BAb
#1
Ga Bin Park, Yoon Hee Chung, Jee-Yeong Jeong, Daejin Kim
Epstein-Barr virus (EBV) infection is closely related to carcinogenesis of various cancers, and is also associated with the development of drug resistance in cancer stem cells. However, in EBV-positive cancer cells, the mechanistic details of the downstream signaling and the connection of PI3K with the NF-κB pathway for development of drug resistance remain controversial. Diffuse large B-cell lymphoma (DLBCL) and multiple myeloma (MM) cells infected by EBV display drug resistance-related proteins (MDR1, MRP1 and MRP2) and stem cell markers (OCT4 and SOX2)...
March 21, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28334025/hla-expression-and-hla-type-associations-in-relation-to-ebv-status-in-hispanic-hodgkin-lymphoma-patients
#2
Luke B Fletcher, Rianne N Veenstra, Eric Y Loo, Amie E Hwang, Imran N Siddiqi, Lydia Visser, Bouke G Hepkema, Ilja M Nolte, Anke van den Berg, Wendy Cozen, Arjan Diepstra
A proportion of classical Hodgkin lymphomas harbor the Epstein Barr virus (EBV). We previously demonstrated that associations between Human Leukocyte Antigen (HLA) alleles and susceptibility to EBV+ classical Hodgkin lymphoma differ between European and Chinese populations. Data on Hispanic populations is missing. Here we examined the association between HLA type, tumor cell HLA expression and other characteristics in Hispanic Hodgkin lymphoma patients. Hispanic Hodgkin lymphoma patients diagnosed at the Los Angeles County-University of Southern California Medical Center from 2000-2012 were included (n = 65)...
2017: PloS One
https://www.readbyqxmd.com/read/28328987/a-novel-recombinant-variant-of-latent-membrane-protein-1-from-epstein-barr-virus-in-argentina-denotes-phylogeographical-association
#3
Magdalena Gantuz, Mario Alejandro Lorenzetti, Paola Andrea Chabay, María Victoria Preciado
AIM: To study LMP1 variants distribution among children with EBV+ malignant and benign conditions as well as in healthy carriers. METHODS: Oral secretions and blood cells from 31 children with IM, and biopsies from 14 EBV+ reactive lymphoid hyperplasia and 33 EBV+ lymphomas were included. LMP1 was amplified by nested PCR and sequenced. Phylogenetic reconstructions were made under Maximun Likelihood, Bayesian and coalescent algorithms. RESULTS: Six clades were defined (China1, China2, Med-, Alaskan, B95...
2017: PloS One
https://www.readbyqxmd.com/read/28325354/solitary-plasmacytoma-associated-with-epstein-barr-virus-a-clinicopathologic-cytogenetic-study-and-literature-review
#4
Jiaqi Yan, Jianchao Wang, Wenyan Zhang, Min Chen, Jie Chen, Weiping Liu
Solitary plasmacytoma (SP) is an uncommon, indolent tumor of plasma cell neoplasms that presents as a mass lesion in extramedullary sites. Evidence of Epstein-Barr virus (EBV) infection is frequently associated with various lymphatic and hematopoietic malignancies but is relatively rare in SP. Moreover, it is essential to distinguish EBV-positive plasmacytoma from plasmablastic lymphoma. In this study, we found 4 EBV-encoded RNA (EBER)-positive patients among 46 consecutive immunocompetent patients of SP and compared the clinicopathologic features of these patients with those of the EBER-negative cohort...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28316767/type-ii-enteropathy-associated-t-cell-lymphoma-a-rare-report-from-iran
#5
Neda Nozari
Type II enteropathy-associated T-cell lymphoma (EATL) is a rare disease that is reported from Asia, especially from Taiwan. In this paper, we present a patient from Iran (Arab) with Type II EATL whose disease was not associated with celiac disease or Epstein-Barr virus (EBV) infection. The patient died due to intestinal perforation during the first chemotherapy. Type II EATL is a gastrointestinal lymphoma with poor prognosis and a high affinity for intestinal perforation. Early detection of EATL II is essential for chemotherapy prior to the onset of malnutrition symptoms...
January 2017: Middle East Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28306367/the-clinical-significance-of-epstein-barr-virus-dna-in-peripheral-blood-mononuclear-cells-in-patients-with-non-hodgkin-lymphoma
#6
Yi Chen, Xiaoyun Zheng, Buyuan Chen, Xiaozhu Yang, Jing Zheng, Zhihong Zheng, Ting Yang, Tingbo Liu, Jianda Hu
The aim of the study was to determine the clinical significance of EBV DNA in the peripheral blood mononuclear cells (PBMCs) from the patients with non-Hodgkin lymphoma (NHL). Newly diagnosed patients with NHL were enrolled in the study (n = 328), and clinical data retrospectively analyzed. EBV DNA was detectable in 34.8% of patients, and the positivity rate was 51.6% for T/NK cell subtype and 24.3% for B cell subtype (p < .001). In diffuse large B cell lymphoma (DLBCL), extranodal NK/T-cell lymphoma, nasal type (ENKTL), peripheral T-cell lymphoma not otherwise classified (PTCL...
March 17, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28298901/unveiling-another-missing-piece-in-ebv-driven-lymphomagenesis-ebv-encoded-micrornas-expression-in-eber-negative-burkitt-lymphoma-cases
#7
Lucia Mundo, Maria R Ambrosio, Matteo Picciolini, Giuseppe Lo Bello, Sara Gazaneo, Leonardo Del Porro, Stefano Lazzi, Mohsen Navari, Noel Onyango, Massimo Granai, Cristiana Bellan, Giulia De Falco, Davide Gibellini, Pier P Piccaluga, Lorenzo Leoncini
Epstein-Barr virus (EBV) is a gammaherpesvirus linked to a number of lymphoid and epithelial malignancies, including Burkitt lymphoma (BL) in which its frequency ranges from 30% in sporadic cases to 100% in the endemic ones. The possible contribution of EBV to BL pathogenesis is largely unknown. It has been suggested that EBV may be associated with all of the cases, including those diagnosed as EBV negative by a mechanism of hit-and-run. Early during oncogenesis, viral genes are essential for initiating disease...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28293795/a-workflow-for-in-silico-design-of-hil-10-and-ebvil-10-inhibitors-using-well-known-miniprotein-scaffolds
#8
Salvador Dueñas, Sergio A Aguila, Genaro Pimienta
The over-expression of immune-suppressors such as IL-10 is a crucial landmark in both tumor progression, and latent viral and parasite infection. IL-10 is a multifunctional protein. Besides its immune-cell suppressive function, it also promotes B-cell tumorigenesis of lymphomas and melanoma. Human pathogens like unicellular parasites and viruses that remain latent inside B cells promote the over-expression of hIL-10 upon infection, which inhibits cell-mediated immune surveillance, and at the same time mediates B cell proliferation...
April 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28280640/hhv8-ebv-coinfection-lymphoproliferative-disorder-rare-entity-with-a-favorable-outcome
#9
Dhouha Bacha, Beya Chelly, Houda Kilani, Lamia Charfi, Amel Douggaz, Samia Chatti, Emna Chelbi
HHV8/EBV-associated germinotropic lymphoproliferative disorder (GLD) is a challenging diagnosis given its rarity, the particular clinical presentation, and the lack of expression of markers usually used in establishing hematopoietic lineage. We report a new case of HHV8/EBV GLD in an immunocompetent 78-year-old woman. The diagnosis was made in an incidentally discovered lymphadenopathy. Histological examination showed a nodular lymphoid proliferation centered by aggregates of atypical plasmablastic cells admixed with small lymphoid cells...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28271981/understanding-epstein-barr-virus-life-cycle-with-proteomics-a-temporal-analysis-of-ubiquitination-during-virus-reactivation
#10
Dong-Wen Lv, Jun Zhong, Kun Zhang, Akhilesh Pandey, Renfeng Li
Epstein-Barr virus (EBV) is a human γ-herpesvirus associated with cancer, including Burkitt lymphoma, nasopharyngeal, and gastric carcinoma. EBV reactivation in latently infected B cells is essential for persistent infection whereby B cell receptor (BCR) activation is a physiologically relevant stimulus. Yet, a global view of BCR activation-regulated protein ubiquitination is lacking when EBV is actively replicating. We report here, for the first time, the long-term effects of IgG cross-linking-regulated protein ubiquitination and offer a basis for dissecting the cellular environment during the course of EBV lytic replication...
January 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28259992/ebv%C3%A2-bart%C3%A2-6%C3%A2-3p-and-cellular-microrna%C3%A2-197-compromise-the-immune-defense-of-host-cells-in-ebv%C3%A2-positive-burkitt-lymphoma
#11
Yang-Min Zhang, Yan Yu, He-Ping Zhao
The present study aimed to identify the association between Epstein‑Barr virus (EBV) microRNA (miRNA) and cellular miRNA in compromising the immune system, which contributes to the development of Burkitt lymphoma (BL). The present study selected cellular miR‑197 as the focus of the experiments due to the previous report that it is differentially expressed and the observation that interleukin‑6 receptor (IL‑6R) is a virtual target of miR‑197 and EBV‑BamHI A region rightward transcript (BART)‑6‑3p...
February 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28256900/computed-tomography-findings-in-epstein-barr-virus-ebv-positive-diffuse-large-b-cell-lymphoma-dlbcl-of-the-elderly-comparison-with-ebv-negative-dlbcl
#12
Kouhei Tokuyama, Fumito Okada, Haruka Sato, Shunro Matsumoto, Akira Matsumoto, Ayako Haruno, Kenji Kashima, Masao Ogata, Eiichi Ohtsuka, Hiromu Mori
OBJECTIVES: This study aimed to compare CT findings in patients with Epstein-Barr virus positive (EBV+) diffuse large B-cell lymphoma (DLBCL) of the elderly with CT findings in patients with Epstein-Barr virus negative (EBV-) DLBCL. METHODS: We retrospectively identified nine consecutive patients with EBV+ DLBCL (six men, three women; aged 72-83 years, mean: 76.2 years) and 39 consecutive patients with EBV- DLBCL (19 men, 20 women; aged 53-91 years, mean: 71.3 years) who had undergone CT examinations between September 2007 and August 2016...
March 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28256087/frequent-downregulation-of-bach2-expression-in-epstein-barr-virus-positive-diffuse-large-b-cell-lymphoma
#13
Mai Noujima-Harada, Katsuyoshi Takata, Tomoko Miyata-Takata, Hiroaki Sakurai, Kazuhiko Igarashi, Etsuro Ito, Keina Nagakita, Kohei Taniguchi, Nobuhiko Ohnishi, Shizuma Omote, Tetsuya Tabata, Yasuharu Sato, Tadashi Yoshino
Diffuse large B-cell lymphoma (DLBCL) is the most common B-cell lymphoma subtypes, and the Epstein-Barr virus (EBV)-positive subtype of DLBCL is known to exhibit a more aggressive clinical behavior than the EBV-negative one. BTB and CNC homology 2 (BACH2) has been highlighted as a tumor suppressor in hematopoietic malignancies; however, the role of BACH2 in EBV-positive DLBCL is unclear. In the present study, BACH2 expression and its significance were studied in 23 EBV-positive and 43 EBV-negative patient samples...
March 2, 2017: Cancer Science
https://www.readbyqxmd.com/read/28253538/the-identification-of-upregulated-ebv-mir-bhrf1-2-5p-targeting-malt1-and-ebv-mir-bhrf1-3-in-the-circulation-of-patients-with-multiple-sclerosis
#14
Yifei Wang, Dandan He, Hongwei Liang, Dan Yang, Hui Yue, Xuemei Zhang, Rui Wang, Bing Li, Hongxia Yang, Yuan Liu, Yao Chen, Yuxiao Duan, ChenYu Zhang, Xi Chen, Jin Fu
Epstein-Barr virus (EBV) is a well-documented etiologic factor for multiple sclerosis (MS). EBV encodes at least 44 microRNAs (miRNAs) that are readily detectable in the circulation of human. Previous studies have demonstrated that EBV-encoded miRNAs regulate host immune response and may serve as biomarkers for EBV-associated diseases. However, the roles of EBV miRNAs in MS are still unkown. To fill the gap, we conducted a comprehensive profiling of 44 mature EBV miRNAs in 30 relapse-remitting MS (RRMS) patients at relapse and 30 matched healthy controls...
March 2, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28250859/-18-f-fdg-pet-ct-for-the-diagnosis-of-malignant-and-infectious-complications-after-solid-organ-transplantation
#15
Nastassja Muller, Romain Kessler, Sophie Caillard, Eric Epailly, Fabrice Hubelé, Céline Heimburger, Izzie-Jacques Namer, Raoul Herbrecht, Cyrille Blondet, Alessio Imperiale
PURPOSE: Infection and malignancy represent two common complications after solid organ transplantation, which are often characterized by poorly specific clinical symptomatology. Herein, we have evaluated the role of (18)F-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography/computed tomography (PET/CT) in this clinical setting. METHODS: Fifty-eight consecutive patients who underwent FDG PET/CT after kidney, lung or heart transplantation were included in this retrospective analysis...
March 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28249048/chloroquine-triggers-epstein-barr-virus-replication-through-phosphorylation-of-kap1-trim28-in-burkitt-lymphoma-cells
#16
Xiaofan Li, Eric M Burton, Sumita Bhaduri-McIntosh
Trials to reintroduce chloroquine into regions of Africa where P. falciparum has regained susceptibility to chloroquine are underway. However, there are long-standing concerns about whether chloroquine increases lytic-replication of Epstein-Barr virus (EBV), thereby contributing to the development of endemic Burkitt lymphoma. We report that chloroquine indeed drives EBV replication by linking the DNA repair machinery to chromatin remodeling-mediated transcriptional repression. Specifically, chloroquine utilizes ataxia telangiectasia mutated (ATM) to phosphorylate the universal transcriptional corepressor Krüppel-associated Box-associated protein 1/tripartite motif-containing protein 28 (KAP1/TRIM28) at serine 824 -a mechanism that typically facilitates repair of double-strand breaks in heterochromatin, to instead activate EBV...
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28248818/kshv-associated-and-ebv-associated-germinotropic-lymphoproliferative-disorder-new-findings-and-review-of-the-literature
#17
Tapan Bhavsar, John C Lee, Yvonne Perner, Mark Raffeld, Liqiang Xi, Stefania Pittaluga, Elaine S Jaffe
We report 2 cases of Kaposi sarcoma-associated herpesvirus (KSHV)-and Epstein-Barr Virus (EBV) associated germinotropic lymphoproliferative disorder. Both cases arose in patients from regions endemic for KSHV, Cape Verde, and the Democratic Republic of the Congo, presenting as localized lymphadenopathy. The affected lymph nodes showed colonization of the follicles by clusters of large atypical plasmablasts, but also showed regressive changes with vascular proliferation and interfollicular plasmacytosis, both reminiscent of human herpesvirus 8 (HHV-8) positive multicentric Castleman disease...
February 28, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28247637/-oncogenetic-factors-of-some-herpesvirus-infection-agents
#18
I V Kosova
Currently, debate continues about the etiological role of pathogens, in particular viruses, in the development of bladder tumors, their impact on the rate of recurrence and invasive and metastatic forms. The literature has reported some evidence for oncomodulating effect of cytomegalovirus in glioblastomas and bowel tumors. There is the possible role of herpes simplex virus (HSV) type 2 as carcinogenesis cofactor that initiates the development of dysplasia and maintains it in a stable condition. Epstein - Barr virus (EBV) from a family of the oncogenic DNA viruses is associated with an increasing range of cancers...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28244148/detection-of-inherited-chromosomally-integrated-hhv-6-cihhv-6-in-a-marker-chromosome
#19
Diana Campioni, Valentina Gentili, Francesco Cavazzini, Daria Bortolotti, Elisabeth P Nacheva, Antonio Cuneo, Dario Di Luca, Roberta Rizzo
OBJECTIVES: Inherited chromosomally integrated human herpesvirus 6 (ciHHV-6) is characterized by the complete HHV-6 genome integration into the host germ line genome and is vertically transmitted with a Mendelian inheritance. By now, the only relationship between ciHHV-6 and diseases seems to be with angina pectoris. METHODS: We report a case of an 82 years old male diagnosed with Diffuse Large B-cell Lymphoma (DLBCL) on October 2014. To substantiate the suspicion of ciHHV-6, we analysed peripheral blood mononuclear cells, bone marrow biopsy and pleural effusion derived mesothelial cells with PCR, RT-PCR and FISH...
February 28, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28231401/reappraisal-of-ebv-in-diffuse-large-b-cell-lymphoma-dlbcl-comparative-analysis-between-ebv-positive-and-negative-dlbcl-with-ebv-positive-bystander-cells
#20
Akiko Ohashi, Seiichi Kato, Akinao Okamoto, Yoko Inaguma, Akira Satou, Toyonori Tsuzuki, Nobuhiko Emi, Masataka Okamoto, Shigeo Nakamura
AIMS: Epstein-Barr virus (EBV)-positive diffuse large B-cell lymphoma (DLBCL), not otherwise specified (NOS) is defined as monoclonal EBV(+) B-cell proliferation affecting patients without any known immunosuppression. Non-neoplastic EBV(+) cells proliferating in or adjacent to EBV(-) DLBCL were reported recently, but their clinical significance is unclear. Thus, we investigated the prognostic impact of EBV(+) cells in DLBCL. METHODS AND RESULTS: We compared the clinico-pathological characteristics of 30 EBV(+) DLBCL patients and 29 and 604 EBV(-) DLBCL patients with and without EBV(+) bystander cells (median age of onset 71, 67, and 62 years, respectively)...
February 23, 2017: Histopathology
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