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Burkitts lymphoma

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https://www.readbyqxmd.com/read/29145302/burkitt-lymphoma-and-cavernous-sinus-syndrome-with-breast-uptake-on-18f-fdg-pet-ct-a-case-report
#1
Florette Reyneke, Neo Mokgoro, Mariza Vorster, Mike Sathekge
RATIONALE: Burkitt lymphoma (BL) is a type of non-Hodgkin lymphoma that arises in the B-cells. Cavernous sinus involvement is rare, especially in adults. Here we report an unusual case of a 30-year-old HIV-positive woman with BL and cavernous sinus syndrome who also had intense bilateral breast uptake, related to menstrual cycle. Fluorine-18 2-fluoro-2-deoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) has been found to be useful in the management of BL. PATIENT CONCERNS: A 30-year old female patient presented with a history of diplopia and headache...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144413/epstein-barr-virus-hijacks-dna-damage-response-transducers-to-orchestrate-its-life-cycle
#2
REVIEW
Pok Man Hau, Sai Wah Tsao
The Epstein-Barr virus (EBV) is a ubiquitous virus that infects most of the human population. EBV infection is associated with multiple human cancers, including Burkitt's lymphoma, Hodgkin's lymphoma, a subset of gastric carcinomas, and almost all undifferentiated non-keratinizing nasopharyngeal carcinoma. Intensive research has shown that EBV triggers a DNA damage response (DDR) during primary infection and lytic reactivation. The EBV-encoded viral proteins have been implicated in deregulating the DDR signaling pathways...
November 16, 2017: Viruses
https://www.readbyqxmd.com/read/29143406/oncogenic-spiral-by-infectious-pathogens-the-cooperation-of-multiple-factors-in-cancer-development
#3
Jun-Ichirou Yasunaga, Masao Matsuoka
Chronic infection is one of the major causes of cancer, and there are several mechanisms for infection-mediated oncogenesis. Some pathogens encode gene products that behave like oncogenic factors, hijacking cellular pathways to promote the survival and proliferation of infected cells in vivo. Some of these viral oncoproteins trigger a cellular damage defense response leading to senescence; however, other viral factors hinder this suppressive effect, suggesting that cooperation of those viral factors is important for malignant transformation...
November 15, 2017: Cancer Science
https://www.readbyqxmd.com/read/29142583/primary-gastric-burkitt-s-lymphoma
#4
Adnan Khan, Sarbiland Khan, Umair Arshad
The primary gastrointestinal non-Hodgkin's lymphoma is a rare entity. Burkitt's lymphoma (BL) is an aggressive form of B-cell lymphoma which is endemic in Africa, while in rest of the world non-endemic cases has been reported. Primary gastric BL is extremely rare and only around 53 cases have been reported till now. Here we present the case of a middle-aged male, immunocompetent who presented with anorexia weight loss and diarrhea. His upper gastrointestinal endoscopy and biopsy revealed a large primary gastric Burkitt lymphoma...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29137176/ebv-and-apoptosis-the-viral-master-regulator-of-cell-fate
#5
REVIEW
Leah Fitzsimmons, Gemma L Kelly
Epstein-Barr virus (EBV) was first discovered in cells from a patient with Burkitt lymphoma (BL), and is now known to be a contributory factor in 1-2% of all cancers, for which there are as yet, no EBV-targeted therapies available. Like other herpesviruses, EBV adopts a persistent latent infection in vivo and only rarely reactivates into replicative lytic cycle. Although latency is associated with restricted patterns of gene expression, genes are never expressed in isolation; always in groups. Here, we discuss (1) the ways in which the latent genes of EBV are known to modulate cell death, (2) how these mechanisms relate to growth transformation and lymphomagenesis, and (3) how EBV genes cooperate to coordinately regulate key cell death pathways in BL and lymphoblastoid cell lines (LCLs)...
November 13, 2017: Viruses
https://www.readbyqxmd.com/read/29132393/interferon-%C3%AE-inducible-protein-16-ifi16-is-required-for-the-maintenance-of-epstein-barr-virus-latency
#6
Gina Pisano, Arunava Roy, Mairaj Ahmed Ansari, Binod Kumar, Leela Chikoti, Bala Chandran
BACKGROUND: Epstein-Barr virus (EBV) exhibits both lytic and latent (Lat. I, II, and III) phases in an infected individual. It's during the latent phase of EBV that all EBV-associated cancers, including Burkitt's lymphoma, nasopharyngeal carcinoma and lymphoproliferative disease arise. Interferon-γ-inducible protein 16 (IFI16) is a well-established innate immune sensor and viral transcriptional regulator involved in response to invading DNA viruses. During latency, IFI16 remains in the nucleus, in part bound to the EBV genome; however, neither its role in EBV lytic cycle or latency has been established...
November 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/29132323/integrative-microrna-and-mrna-deep-sequencing-expression-profiling-in-endemic-burkitt-lymphoma
#7
Cliff I Oduor, Yasin Kaymaz, Kiprotich Chelimo, Juliana A Otieno, John Michael Ong'echa, Ann M Moormann, Jeffrey A Bailey
BACKGROUND: Burkitt lymphoma (BL) is characterized by overexpression of the c-myc oncogene, which in the vast majority of cases is a consequence of an IGH/MYC translocation. While myc is the seminal event, BL is a complex amalgam of genetic and epigenetic changes causing dysregulation of both coding and non-coding transcripts. Emerging evidence suggest that abnormal modulation of mRNA transcription via miRNAs might be a significant factor in lymphomagenesis. However, the alterations in these miRNAs and their correlations to their putative mRNA targets have not been extensively studied relative to normal germinal center (GC) B cells...
November 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29131242/synergistic-effects-of-chlorambucil-and-trail-on-apoptosis-and-proliferation-of-raji-cells
#8
J-X Guo, Y-H Zhou, Y-Q Huang, G-J Liu, J-X Pan
OBJECTIVE: Tumor necrosis factor (TNF) related apoptosis inducing ligand (TRAIL) can induce the apoptosis of tumor cells, but leaving its effect on malignant lymphoma largely insignificant, as these tumors may develop drug resistance. Chlorambucil (CLB) had definitive treatment efficacy on low-malignant non-Hodgkin lymphoma (NHL), but with unclear efficacy on highly malignant Burkitt lymphoma. A study has been shown that CLB could enhance the sensitivity of chronic lymphatic leukemia cells against TRAIL...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29130007/adult-sporadic-burkitt-s-lymphoma-presenting-with-rapid-development-of-peritoneal-lymphomatosis
#9
Naomi Fei, Nilay Shah
Sporadic Burkitt's Lymphoma (BL) is a highly aggressive form of non-Hodgkin's lymphoma which requires prompt diagnosis and treatment. Though usual presentation involves abdominal lymphadenopathy with possible solid organ involvement, sporadic BL can rarely present with peritoneal lymphomatosis. We present a unique case with rapid evolution of BL presenting as peritoneal and omental lymphomatosis with hepatic lesions and pelvic and pericardial adenopathy.
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29123514/assessment-of-the-combined-effect-of-epstein-barr-virus-and-plasmodium-falciparum-infections-on-endemic-burkitt-lymphoma-using-a-multiplex-serological-approach
#10
Ruth Aguilar, Delphine Casabonne, Cristina O'Callaghan-Gordo, Marta Vidal, Joseph J Campo, Nora Mutalima, Evelina Angov, Sheetij Dutta, Deepak Gaur, Chetan E Chitnis, Virander Chauhan, Angelika Michel, Silvia de Sanjosé, Tim Waterboer, Manolis Kogevinas, Rob Newton, Carlota Dobaño
Epstein-Barr virus (EBV) is a necessary cause of endemic Burkitt lymphoma (eBL), while the role of Plasmodium falciparum in eBL remains uncertain. This study aimed to generate new hypotheses on the interplay between both infections in the development of eBL by investigating the IgG and IgM profiles against several EBV and P. falciparum antigens. Serum samples collected in a childhood study in Malawi (2005-2006) from 442 HIV-seronegative children (271 eBL cases and 171 controls) between 1.4 and 15 years old were tested by quantitative suspension array technology against a newly developed multiplex panel combining 4 EBV antigens [Z Epstein-Barr replication activator protein (ZEBRA), early antigen-diffuse component (EA-D), EBV nuclear antigen 1, and viral capsid antigen p18 subunit (VCA-p18)] and 15 P...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29119120/computer-aided-design-of-an-epitope-based-vaccine-against-epstein-barr-virus
#11
Julio Alonso-Padilla, Esther M Lafuente, Pedro A Reche
Epstein-Barr virus is a very common human virus that infects 90% of human adults. EBV replicates in epithelial and B cells and causes infectious mononucleosis. EBV infection is also linked to various cancers, including Burkitt's lymphoma and nasopharyngeal carcinomas, and autoimmune diseases such as multiple sclerosis. Currently, there are no effective drugs or vaccines to treat or prevent EBV infection. Herein, we applied a computer-aided strategy to design a prophylactic epitope vaccine ensemble from experimentally defined T and B cell epitopes...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29112016/b-lymphoblastic-leukemia-lymphoma-with-burkitt-like-morphology-and-igh-myc-rearrangement-report-of-3-cases-in-adult-patients
#12
Yiting Li, Gunjan Gupta, Ari Molofsky, Yi Xie, Nader Shihabi, Jane McCormick, Elaine S Jaffe
Isolated MYC rearrangement without other recurrent genetic abnormalities is rare in B lymphoblastic leukemia/lymphoma (B-ALL/LBL), with most cases reported in pediatric patients. We report 3 adult cases with lymphoblasts showing a precursor B cell immunophenotype, and isolated MYC/IGH translocation. All 3 cases occurred in male patients with initial presentation of diffuse lymphadenopathy. Cases 1 and 2 had B-ALL with significantly increased lymphoblasts in peripheral blood and bone marrow. Case 3, a patient with human immunodeficiency virus infection, had the diagnosis of B-LBL made on a retroperitoneal lymph node biopsy and had no peripheral blood or bone marrow involvement...
November 3, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29111160/corrigendum-to-cd95-mediated-apoptosis-in-burkitt-s-lymphoma-b-cells-is-associated-with-pim-1-down-regulation-biochimica-et-biophysica-acta-1863-1-2017-239-252
#13
Sabine Matou-Nasri, Zaki Rabhan, Haya Albuayjan, Hamad Al-Eidi, Wesam Bin Yahya, Abdelkareem Al Abdulrahman, Nasser Almobadel, Mona Alsubeai, Saleh Al Ghamdi, Ahmed Alaskar, Mohammed AlBalwi, Mohsen Alzahrani, Ibrahim Alabdulkareem
No abstract text is available yet for this article.
October 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29107940/structure-of-the-human-mhc-i-peptide-loading-complex
#14
Andreas Blees, Dovile Januliene, Tommy Hofmann, Nicole Koller, Carla Schmidt, Simon Trowitzsch, Arne Moeller, Robert Tampé
The peptide-loading complex (PLC) is a transient, multisubunit membrane complex in the endoplasmic reticulum that is essential for establishing a hierarchical immune response. The PLC coordinates peptide translocation into the endoplasmic reticulum with loading and editing of major histocompatibility complex class I (MHC-I) molecules. After final proofreading in the PLC, stable peptide-MHC-I complexes are released to the cell surface to evoke a T-cell response against infected or malignant cells. Sampling of different MHC-I allomorphs requires the precise coordination of seven different subunits in a single macromolecular assembly, including the transporter associated with antigen processing (TAP1 and TAP2, jointly referred to as TAP), the oxidoreductase ERp57, the MHC-I heterodimer, and the chaperones tapasin and calreticulin...
November 6, 2017: Nature
https://www.readbyqxmd.com/read/29100357/dnmt3b-overexpression-contributes-to-aberrant-dna-methylation-and-myc-driven-tumor-maintenance-in-t-all-and-burkitt-s-lymphoma
#15
Candace J Poole, Wenli Zheng, Atul Lodh, Aleksey Yevtodiyenko, Daniel Liefwalker, Honglin Li, Dean W Felsher, Jan van Riggelen
Aberrant DNA methylation is a hallmark of cancer. However, our understanding of how tumor cell-specific DNA methylation patterns are established and maintained is limited. Here, we report that in T-cell acute lymphoblastic leukemia (T-ALL) and Burkitt's lymphoma the MYC oncogene causes overexpression of DNA methyltransferase (DNMT) 1 and 3B, which contributes to tumor maintenance. By utilizing a tetracycline-regulated MYC transgene in a mouse T-ALL (EμSRα-tTA;tet-o-MYC) and human Burkitt's lymphoma (P493-6) model, we demonstrated that DNMT1 and DNMT3B expression depend on high MYC levels, and that their transcription decreased upon MYC-inactivation...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29078819/cytokines-associated-with-burkitt-s-lymphoma-in-western-kenya
#16
Isaac Ndede, Simeon K Mining, Kirtika Patel, Fredrick M Wanjala, David Chumba, Constance Tenge
OBJECTIVE: Burkitt's lymphoma (BL) is a common aggressive non-Hodgkin's lymphoma in East and Central Africa among children. Persistent infections with Epstein Barr virus or Plasmodium falciparum are associated with immune hyperstimulation. It is hypothesised that inadvertent cytokine responses to infections indirectly or directly influence B cell neoplastic transformation through c-myelocytomatosis (c-myc) gene translocation. We sought to describe cytokines in children and adolescents with BL...
October 27, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29078283/humanized-mouse-model-supports-development-function-and-tissue-residency-of-human-natural-killer-cells
#17
Dietmar Herndler-Brandstetter, Liang Shan, Yi Yao, Carmen Stecher, Valerie Plajer, Melanie Lietzenmayer, Till Strowig, Marcel R de Zoete, Noah W Palm, Jie Chen, Catherine A Blish, Davor Frleta, Cagan Gurer, Lynn E Macdonald, Andrew J Murphy, George D Yancopoulos, Ruth R Montgomery, Richard A Flavell
Immunodeficient mice reconstituted with a human immune system represent a promising tool for translational research as they may allow modeling and therapy of human diseases in vivo. However, insufficient development and function of human natural killer (NK) cells and T cell subsets limit the applicability of humanized mice for studying cancer biology and therapy. Here, we describe a human interleukin 15 (IL15) and human signal regulatory protein alpha (SIRPA) knock-in mouse on a Rag2(-/-)Il2rg(-/-) background (SRG-15)...
October 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29075079/diagnostic-dilemma-in-the-morphological-detection-of-flower-cells-in-lymphomas
#18
Neha Singh, Jatin Gandhi, Narendra Agrawal, Ajit Panaych, Narender Tejwani, Anurag Mehta
"Flower cells" are described typically in HTLV-1 induced adult T cell leukemia. Very few case reports have been published documenting flower cells in B cell lymphomas. We herein present a case of Burkitt lymphoma proven on the basis of immunophenotyping and FISH studies, with "flower cells" morphology.
December 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29071822/molecular-and-cytogenetic-studies-in-a-child-with-burkitt-lymphoma-and-ataxia-telangiectasia-syndrome-harboring-myc-overexpression-and-partial-trisomy-8
#19
Mariana T De Souza, Gabriela Vera-Lozada, Moneeb Othman, Teresinha J Marques-Salles, Luciana W Pinto, Moisés M da Rocha, Soraia Rouxinol, Thomas Liehr, Raul C Ribeiro, Rocio Hassan, Maria Luiza M Silva
No abstract text is available yet for this article.
January 2018: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/29071274/bilateral-central-retinal-artery-occlusion-associated-with-bilateral-lymphoproliferative-infiltrative-optic-neuropathy
#20
Philip J DeSouza, Claudia G Hooten, Christopher M Lack, Vishak J John, Timothy J Martin
BACKGROUND: Leukemic infiltration of the optic nerve is relatively rare. While previously described in acute leukemia, the infiltration in our case represents central nervous system (CNS) metastasis of Burkitt-type lymphoma that developed as a complication of solid-organ transplantation, resulting in a bilateral infiltrative optic neuropathy with sequential, bilateral central retinal artery occlusion (CRAO) and devastating vision loss. METHODS: The medical record, serial ophthalmic examination findings, clinical course, and imaging including magnetic resonance imaging (MRI), fundus photographs, and fluorescein angiography of a single patient were retrospectively reviewed...
September 2017: Ocular Oncology and Pathology
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