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Burkitt's lymphoma

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https://www.readbyqxmd.com/read/28807996/klhl6-deficiency-impairs-transitional-b-cell-survival-and-differentiation
#1
Barbara Bertocci, Damiana Lecoeuche, Delphine Sterlin, Julius Kühn, Baptiste Gaillard, Annie De Smet, Frederique Lembo, Christine Bole-Feysot, Nicolas Cagnard, Tatiana Fadeev, Auriel Dahan, Jean-Claude Weill, Claude-Agnès Reynaud
Klhl6 belongs to the KLHL gene family, which is composed of an N-terminal BTB-POZ domain and four to six Kelch motifs in tandem. Several of these proteins function as adaptors of the Cullin3 E3 ubiquitin ligase complex. In this article, we report that Klhl6 deficiency induces, as previously described, a 2-fold reduction in mature B cells. However, we find that this deficit is centered on the inability of transitional type 1 B cells to survive and to progress toward the transitional type 2 B cell stage, whereas cells that have passed this step generate normal germinal centers (GCs) upon a T-dependent immune challenge...
August 14, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28801683/regulation-of-tumour-related-genes-by-dynamic-epigenetic-alteration-at-enhancer-regions-in-gastric-epithelial-cells-infected-by-epstein-barr-virus
#2
Atsushi Okabe, Sayaka Funata, Keisuke Matsusaka, Hiroe Namba, Masaki Fukuyo, Bahityar Rahmutulla, Motohiko Oshima, Atsushi Iwama, Masashi Fukayama, Atsushi Kaneda
Epstein-Barr virus (EBV) infection is associated with tumours such as Burkitt lymphoma, nasopharyngeal carcinoma, and gastric cancer. We previously showed that EBV(+) gastric cancer presents an extremely high-methylation epigenotype and this aberrant DNA methylation causes silencing of multiple tumour suppressor genes. However, the mechanisms that drive EBV infection-mediated tumorigenesis, including other epigenomic alteration, remain unclear. We analysed epigenetic alterations induced by EBV infection especially at enhancer regions, to elucidate their contribution to tumorigenesis...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801451/adult-high-grade-b-cell-lymphoma-with-burkitt-lymphoma-signature-genomic-features-and-potential-therapeutic-targets
#3
Alyssa Bouska, Chengfeng Bi, Waseem Lone, Weiwei Zhang, Ambreen Kedwaii, Tayla Heavican, Cynthia M Lachel, Jiayu Yu, Roberto Ferro, Nanees Eldorghamy, Timothy C Greiner, Julie Vose, Dennis D Weisenburger, Randy D Gascoyne, Andreas Rosenwald, German Ott, Elias Campo, Lisa M Rimsza, Elaine S Jaffe, Rita M Braziel, Reiner Siebert, Rodney R Miles, Sandeep Dave, Anupama Reddy, Jan Delabie, Louis M Staudt, Joo Y Song, Timothy W McKeithan, Kai Fu, Michael Green, Wing C Chan, Javeed Iqbal
The adult high-grade B-cell lymphomas sharing molecular features with Burkitt lymphoma (BL) are highly aggressive lymphomas with poor clinical outcome. High-resolution structural and functional genomic analysis of adult Burkitt lymphoma (BL) and high-grade B-cell lymphoma with BL gene-signature (adult-mBL), revealed the MYC-ARF-p53 axis as the primary deregulated pathway. Adult-mBL had either unique or more frequent genomic aberrations (del13q14, del17p, gain8q24 and gain18q21) compared with pediatric-mBL, but shared commonly mutated genes...
August 11, 2017: Blood
https://www.readbyqxmd.com/read/28800491/survival-for-patients-with-rare-haematologic-malignancies-changes-in-the-early-21st-century
#4
Dianne Pulte, Janick Weberpals, Lina Jansen, Sabine Luttmann, Bernd Holleczek, Alice Nennecke, Meike Ressing, Alexander Katalinic, Hermann Brenner
INTRODUCTION: Population-level survival has improved for common haematologic malignancies in the early 21st century. However, relatively few population-level data are available for rare haematologic malignancies. METHODS: Data were extracted from 12 cancer registries in Germany and the Surveillance, Epidemiology and End Results database in the United States (US). Cases of haematologic malignancies with an incidence of less than 1 per 100,000 were selected for analysis...
August 7, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28798814/editorial-childhood-cancer-in-sub-saharan-africa
#5
EDITORIAL
Donald Maxwell Parkin, Cristina Stefan
Measurement of incidence rates of childhood cancer in Africa is difficult. The study 'Cancer of Childhood in sub Saharan Africa' [Stefan C, Bray F, Ferlay J, Parkin DM and Liu B (2017) Cancer of Childhood in sub-Saharan Africaecancer11(755)] brings together results from 16 population-based registries which, as members of the African Cancer Registry Network (AFCRN), have been evaluated as achieving adequate coverage of their target population. The cancers are classified according to the third revision of the International Classification of Childhood Cancer (ICCC-3) and recorded rates in Africa are compared with those in childhood populations in the UK, France, and the USA...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28795661/molecular-diversity-of-igg-responses-to-epstein-barr-virus-proteins-in-asymptomatic-epstein-barr-virus-carriers
#6
Ria Goswami, Kathy Ho Yen Shair, Edward Gershburg
The Epstein-Barr virus (EBV) is a ubiquitous pathogen that infects over 90 % of adults. EBV is the primary etiological agent of infectious mononucleosis and is closely associated with nasopharyngeal carcinoma, gastric carcinoma, Hodgkin lymphoma and Burkitt lymphoma. Clinical serological assays for EBV diagnosis only survey a small portion of the viral proteome, which does not represent the total antigenic breadth presented to the immune system during viral infection. In this study, we have generated an expression library containing the majority of EBV ORFs, and have systematically evaluated IgG responses to those EBV proteins in sera from EBV carriers...
August 10, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28792266/comprehensive-genomic-characterization-dissects-the-complex-biology-of-a-case-of-synchronous-burkitt-lymphoma-and-myeloid-malignancy-with-shared-hematopoietic-ancestry
#7
Georgina L Ryland, Kate Jones, Michelle McBean, Amit Khot, John Francis Seymour, Piers Blombery
No abstract text is available yet for this article.
August 9, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28770352/primary-ovarian-burkitt-s-lymphoma-a-rare-oncological-problem-in-gynaecology-a-review-of-literature
#8
REVIEW
Anna Stepniak, Piotr Czuczwar, Piotr Szkodziak, Ewa Wozniakowska, Slawomir Wozniak, Tomasz Paszkowski
PURPOSE: This review presents the information about epidemiology, clinical manifestation, diagnosis and treatment of primary ovarian Burkitt's lymphoma (BL), including a literature search of available BL cases. The purpose of this review is to draw clinicians' attention to the possibility of ovarian BL occurrence, which may be important in the differential diagnosis of ovarian tumours. METHODS: PubMed and Web of Science databases were searched using the keywords ''Burkitt's'', ''Lymphoma'', ''Ovarian'', ''Primary'', ''Burkitt's lymphoma''...
August 2, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28766549/-analysis-of-inpatient-care-for-hiv-positive-patients-with-malignant-lymphomas-and-hepatitis-over-5-years-2011-2015-at-the-a-s-loginov-moscow-clinical-research-center-moscow-healthcare-department
#9
A V Pivnik, M V Tumanova, A V Chistyakova, G A Dudina, M G Dubnitskaya, O V Mukhin, E P Sergeeva
The authors give their own data in the first Russian publication on 170 patients with lymphomas and hepatitis concurrent with HIV infection, on the distribution of therapy regimens by nosological entities and the number of deaths. Conventional protocols and programs were used for diagnosis and treatment. All the patients received highly active antiretroviral therapy. Lymphoma was treated according to the conventional programs using rituximab in people without hepatitis B. Aggressive lymphomas, such as diffuse large B-cell lymphoma, Burkitt lymphoma, and plasmablastic lymphoma, were identified in most patients...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28765180/isolated-third-nerve-palsy-a-rare-neurological-presentation-of-burkitt-s-lymphoma
#10
Siddhesh Arun Kalantri, Akshatha Nayak, Saikat Datta, Maitreyee Bhattacharyya
Lymphoma patient presenting with isolated third nerve palsy is relatively rare, and diagnosis of underlying disease may be challenging. Until this date, less than 20 cases have been described in the literature. This is the case of a 3-year-old boy who presented to neurologist with ptosis of left eye for 8 days. On examination, abdominal mass was detected, and the child was referred to paediatric surgery department. Laparotomy and excision of the mass was done. Histopathology and immunohistochemistry of the mass confirmed it to be a case of Burkitt's lymphoma...
August 1, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28759103/contribution-of-solid-organ-transplant-recipients-to-the-pediatric-non-hodgkin-lymphoma-burden-in-the-united-states
#11
Elizabeth L Yanik, Meredith S Shiels, Jodi M Smith, Christina A Clarke, Charles F Lynch, Amy R Kahn, Lori Koch, Karen S Pawlish, Eric A Engels
BACKGROUND: Pediatric solid organ transplant recipients have a 100 to 200 times higher risk of non-Hodgkin lymphoma (NHL) than the general pediatric population. Consequently, transplant-related NHL may contribute considerably to the pediatric NHL burden in the United States. METHODS: A cohort study using a linkage between the US transplant registry and 16 cancer registries was conducted. Cancer incidence rates were calculated for people less than 20 years old in the transplant and general populations...
July 31, 2017: Cancer
https://www.readbyqxmd.com/read/28748558/aggressive-b-cell-lymphomas-in-the-update-of-the-4th-edition-of-the-world-health-organization-classification-of-haematopoietic-and-lymphatic-tissues-refinements-of-the-classification-new-entities-and-genetic-findings
#12
REVIEW
German Ott
The update of the 4th edition of the World Health Organization Classification of Haematopoietic and Lymphatic Tissues portends important new findings and concepts in the diagnosis, classification and biology of lymphomas. This review summarizes the basic concepts and cornerstones of the classification of aggressive B-cell lymphomas and details the major changes. Of importance, there is a new concept of High-grade B-cell lymphomas (HGBL), partly replacing the provisional entity of B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma (DLBCL) and Burkitt lymphoma, the so-called grey zone lymphomas...
July 27, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28745238/effect-of-number-of-bifunctional-chelating-agents-on-the-pharmacokinetics-and-immunoreactivity-of-177lu-labeled-rituximab-a-systemic-study
#13
Mohini Guleria, Tapas Das, Chandan Kumar, Rohit Sharma, Jeyachitra Amirdhanayagam, Haladhar D Sarma, Ashutosh Dash
OBJECTIVE: Monoclonal antibodies (mAbs) have been radiolabeled with a variety of radioisotopes utilizing various kinds of bi-functional chelating agents (BFCAs) with an aim to develop suitable agents for radioimmunotherapy. The number of BFCA moieties present per antibody molecule plays a significant role in determining the pharmacokinetics and immunoreactivity exhibited by the radiolabeled antibodies. The objective of the present study is to evaluate the effect of number of BFCA moieties present per antibody molecule on the pharmacokinetics and immunoreactivity of the 177Lu-labeled Rituximab...
July 25, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28738767/synthesis-and-anticancer-evaluation-of-thiazacridine-derivatives-reveals-new-selective-molecules-to-hematopoietic-neoplastic-cells
#14
Moacyr Jesus Barreto de Melo Rêgo, Wanessa Layssa Batista de Sena, Ricardo Olímpio de Moura, Iris Trindade Tenório Jacob, Thiago Ubiratan Lins E Lins, Michelly Cristiny Pereia, Maria do Carmo Alves de Lima, Marina Rocha Galdino-Pitta, Ivan da Rocha Pitta, Maira Galdino da Rocha Pitta
Cancer has become one of the leading causes of morbidity and mortality worldwide. Limitations associated with existing agents increase the need to develop more effective anticancer drugs to improve the therapeutic arsenal available. Here, we describe the synthesis, characterization, toxicity and selectivity in vitro of three novel thiazacridine derivatives (ATZD): (Z)-5-acridin-9-ylmethylene-3-(4-methyl-benzyl)-4-thioxo-thiazolidin-2-one (LPSF/AC-99), (Z)-5-acridin-9-ylmethylene-3-(4-chloro-benzyl)-4-thioxo-thiazolidin-2-one (LPSF/AC-119) and (Z)-5-acridin-9-ylmethylene-3-(3-chloro-benzyl)-4-thioxo-thiazolidin-2-one (LPSF/AC-129)...
July 24, 2017: Combinatorial Chemistry & High Throughput Screening
https://www.readbyqxmd.com/read/28729148/clinical-grade-expanded-regulatory-t-cells-prevent-graft-versus-host-disease-while-allowing-a-powerful-t-cell-dependent-graft-versus-leukemia-effect-in-murine-models
#15
Beatrice Del Papa, Loredana Ruggeri, Elena Urbani, Stefano Baldoni, Debora Cecchini, Tiziana Zei, Roberta Iacucci Ostini, Barbara Crescenzi, Alessandra Carotti, Antonio Pierini, Paolo Sportoletti, Paolo Di Bartolomeo, Franca Falzetti, Cristina Mecucci, Andrea Velardi, Massimo F Martelli, Mauro Di Ianni
We developed a good manufacturing practices-compatible expansion protocol to improve number and purity of regulatory T cells (Tregs) available for clinical trials. Six clinical-grade separation procedures were performed, followed by expansion with high-dose interleukin (IL)-2, anti-CD3/anti-CD28 TCR stimulation, and rapamycin for 19 days achieving a median of 8.5-fold (range, 6.25 to 13.7) expansion. FOXP3 expression was stably maintained over the culture period, while the percentage of CD127 was significantly reduced...
July 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28724971/computational-design-of-a-symmetrical-%C3%AE-trefoil-lectin-with-cancer-cell-binding-activity
#16
Daiki Terada, Arnout R D Voet, Hiroki Noguchi, Kenichi Kamata, Mio Ohki, Christine Addy, Yuki Fujii, Daiki Yamamoto, Yasuhiro Ozeki, Jeremy R H Tame, Kam Y J Zhang
Computational protein design has advanced very rapidly over the last decade, but there remain few examples of artificial proteins with direct medical applications. This study describes a new artificial β-trefoil lectin that recognises Burkitt's lymphoma cells, and which was designed with the intention of finding a basis for novel cancer treatments or diagnostics. The new protein, called "Mitsuba", is based on the structure of the natural shellfish lectin MytiLec-1, a member of a small lectin family that uses unique sequence motifs to bind α-D-galactose...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724958/viral-driven-epigenetic-events-alter-the-expression-of-cancer-related-genes-in-epstein-barr-virus-naturally-infected-burkitt-lymphoma-cell-lines
#17
Hector Hernandez-Vargas, Henri Gruffat, Marie Pierre Cros, Audrey Diederichs, Cécilia Sirand, Romina C Vargas-Ayala, Antonin Jay, Geoffroy Durand, Florence Le Calvez-Kelm, Zdenko Herceg, Evelyne Manet, Christopher P Wild, Massimo Tommasino, Rosita Accardi
Epstein-Barr virus (EBV) was identified as the first human virus to be associated with a human malignancy, Burkitt's lymphoma (BL), a pediatric cancer endemic in sub-Saharan Africa. The exact mechanism of how EBV contributes to the process of lymphomagenesis is not fully understood. Recent studies have highlighted a genetic difference between endemic (EBV+) and sporadic (EBV-) BL, with the endemic variant showing a lower somatic mutation load, which suggests the involvement of an alternative virally-driven process of transformation in the pathogenesis of endemic BL...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724765/translesion-polymerase-pol-%C3%AE-is-required-for-efficient-epstein-barr-virus-infectivity-and-is-regulated-by-the-viral-deubiquitinating-enzyme-bplf1
#18
Ossie F Dyson, Joseph S Pagano, Christopher B Whitehurst
Epstein-Barr Virus (EBV) infection and lytic replication are known to induce a cellular DNA damage response. Previously we showed that the virally encoded BPLF1 protein interacts with and regulates several members of the translesion synthesis pathway (TLS), a DNA damage tolerance pathway, and that these cellular factors enhance viral infectivity. BPLF1 is a late lytic cycle gene, but the protein is also packaged in the viral tegument indicating that BPLF1 may function both early and late during infection. BPLF1 expresses deubiquitinating activity that is strictly conserved across the Herpesviridae; mutation of the active-site cysteine results in loss of enzymatic activity...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28720604/intracardiac-mass-from-burkitt-s-lymphoma-in-an-immunocompromised-patient-a-very-rare-form-of-presentation
#19
Ana Vilaça, Margarida Monteiro, Teresa Pimentel, Herlander Marques
No abstract text is available yet for this article.
July 18, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28717763/burkitt-s-lymphoma-and-b-cell-lymphoma-unclassifiable-with-features-intermediate-between-diffuse-large-b-cell-lymphoma-and-burkitt-s-lymphoma-in-patients-with-hiv-outcomes-in-a-south-african-public-hospital
#20
Gerhard Sissolak, Matthew Seftel, Thomas S Uldrick, Tonya M Esterhuizen, Nooroudien Mohamed, Danie Kotze
PURPOSE: Burkitt's lymphoma (BL) is a common HIV-associated lymphoma in South Africa. B-cell lymphoma unclassifiable with features intermediate between diffuse large B-cell lymphoma and Burkitt's lymphoma (BL/DLBCL) also occurs in HIV infection. Outcomes of HIV-infected patients with BL or BL/DLBCL in a resource-constrained setting are not defined. METHODS: We performed a retrospective study of HIV-positive patients with BL or BL/DLBCL treated from 2004 to 2012 with curative intent at a publically funded academic medical center in South Africa...
June 2017: Journal of Global Oncology
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