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Burkitts lymphoma

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https://www.readbyqxmd.com/read/28636877/lectin-cgl-from-the-sea-mussel-crenomytilus-grayanus-induces-burkitt-s-lymphoma-cells-death-via-interaction-with-surface-glycan
#1
Oleg Chernikov, Alexandra Kuzmich, Irina Chikalovets, Valentina Molchanova, Kuo-Feng Hua
Marine organisms are rich sources of lectins. Lectins are able to bind specifically and reversibly to different types of carbohydrates or glycoproteins. The present study reports the evaluation of glycan binding profile and anti-tumor potential of lectin CGL from the sea mussel Crenomytilus grayanus. Glycan array assay revealed that CGL was able to bind both α and β anomer of galactose, but interaction with the αGal-terminated glycans was stronger. Analysis of most common glycan motifs for CGL showed high affinity to Galα1-4Galβ1-4GlcNAc motif similar to globotriose structure (Gb3: Galα1-4Galβ1-4Glc), the epitope of globotriaosylceramide...
June 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28634224/igh-myc-translocation-associates-with-brca2-deficiency-and-synthetic-lethality-to-parp1-inhibitors
#2
Silvia Maifrede, Kayla Martin, Paulina Podszywalow-Bartnicka, Katherine Sullivan, Samantha K Langer, Reza Nejadi, Yashodhara Dasgupta, Michael Hulse, Daniel Gritsyuk, Margaret Nieborowska-Skorska, Lena N Lupey-Green, Huaqing Zhao, Katarzyna Piwocka, Mariusz A Wasik, Italo Tempera, Tomasz Skorski
Burkitt lymphoma/leukemia (BL) cells carry t(8;14)(q24;q32) chromosomal translocation encoding IGH/MYC, which results in the constitutive expression of the MYC oncogene. Here, it is demonstrated that untreated and cytarabine (AraC)-treated IGH/MYC-positive BL cells accumulate a high number of potentially lethal DNA double-strand breaks (DSBs) and display low levels of the BRCA2 tumor suppressor protein, which is a key element of homologous recombination (HR)-mediated DSB repair. BRCA2 deficiency in IGH/MYC-positive cells was associated with diminished HR activity and hypersensitivity to poly (ADP-ribose) polymerase-1 (PARP1) inhibitors (olaparib, talazoparib) used alone or in combination with cytarabine in vitro...
June 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28619753/inhibition-of-hsp90-suppresses-pi3k-akt-mtor-signaling-and-has-antitumor-activity-in-burkitt-lymphoma
#3
Lisa Giulino-Roth, Herman J Van Besien, Tanner Dalton, Jennifer E Totonchy, Anna Rodina, Tony Taldone, Alexander Bolaender, Hediye Erdjument-Bromage, Jouliana Sadek, Amy Chadburn, Matthew J Barth, Filemon S Dela Cruz, Allison Rainey, Andrew L Kung, Gabriela Chiosis, Ethel Cesarman
Heat shock protein 90 (Hsp90) is a molecular chaperone that protects proteins, including oncogenic signaling complexes, from proteolytic degradation.  PU-H71 is a next-generation Hsp90 inhibitor that preferentially targets the functionally distinct pool of Hsp90 present in tumor cells.  Tumors that are driven by the MYC oncoprotein may be particularly sensitive to PU-H71 due to the essential role of Hsp90 in the epichaperome which maintains the malignant phenotype in the setting of MYC.  Burkitt lymphoma (BL) is an aggressive B-cell lymphoma characterized by MYC dysregulation...
June 15, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28617871/hypoxia-inducible-factor-1%C3%AE-plays-roles-in-epstein-barr-virus-s-natural-life-cycle-and-tumorigenesis-by-inducing-lytic-infection-through-direct-binding-to-the-immediate-early-bzlf1-gene-promoter
#4
Richard J Kraus, Xianming Yu, Blue-Leaf A Cordes, Saraniya Sathiamoorthi, Tawin Iempridee, Dhananjay M Nawandar, Shidong Ma, James C Romero-Masters, Kyle G McChesney, Zhen Lin, Kathleen R Makielski, Denis L Lee, Paul F Lambert, Eric C Johannsen, Shannon C Kenney, Janet E Mertz
When confronted with poor oxygenation, cells adapt by activating survival signaling pathways, including the oxygen-sensitive transcriptional regulators called hypoxia-inducible factor alphas (HIF-αs). We report here that HIF-1α also regulates the life cycle of Epstein-Barr virus (EBV). Incubation of EBV-positive gastric carcinoma AGS-Akata and SNU-719 and Burkitt lymphoma Sal and KemIII cell lines with a prolyl hydroxylase inhibitor, L-mimosine or deferoxamine, or the NEDDylation inhibitor MLN4924 promoted rapid and sustained accumulation of both HIF-1α and lytic EBV antigens...
June 15, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28608950/assessment-of-programmed-death-ligand-1-expression-and-tumor-associated-immune-cells-in-pediatric-cancer-tissues
#5
Robbie G Majzner, Jason S Simon, Joseph F Grosso, Daniel Martinez, Bruce R Pawel, Mariarita Santi, Melinda S Merchant, Birgit Geoerger, Imene Hezam, Virginie Marty, Phillippe Vielh, Mads Daugaard, Poul H Sorensen, Crystal L Mackall, John M Maris
BACKGROUND: Programmed death 1 (PD-1) signaling in the tumor microenvironment dampens immune responses to cancer, and blocking this axis induces antitumor effects in several malignancies. Clinical studies of PD-1 blockade are only now being initiated in pediatric patients, and little is known regarding programmed death-ligand 1 (PD-L1) expression in common childhood cancers. The authors characterized PD-L1 expression and tumor-associated immune cells (TAICs) (lymphocytes and macrophages) in common pediatric cancers...
June 13, 2017: Cancer
https://www.readbyqxmd.com/read/28603988/new-disubstituted-quindoline-derivatives-inhibiting-burkitt-s-lymphoma-cell-proliferation-by-impeding-c-myc-transcription
#6
Hui-Yun Liu, Ai-Chun Chen, Qi-Kun Yin, Zeng Li, Su-Mei Huang, Gang Du, Jin-Hui He, Li-Peng Zan, Shi-Ke Wang, Yao-Hao Xu, Jia-Heng Tan, Tian-Miao Ou, Ding Li, Lian-Quan Gu, Zhi-Shu Huang
The c-MYC oncogene is over-activated during Burkitt's lymphoma pathogenesis. Targeting c-MYC to inhibit its transcriptional activity have emerged as an effective anti-cancer strategy. We synthesized four series of disubstituted quindoline derivatives by introducing the second cationic amino side chain and 5-N-methyl group based on a previous study of SYUIQ-5 (1) as c-MYC promoter G-quadruplex ligands. The in vitro evaluations showed that all new compounds exhibited higher stabilities and binding affinities, and most of them had better selectivity (over duplex DNA) for the c-MYC G-quadruplex compared to 1...
June 12, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28601853/incomplete-miller-fisher-syndrome-with-advanced-stage-burkitt-lymphoma
#7
Zeynep Canan Özdemir, Yeter Düzenli Kar, Coþkun Yarar, Suzan Þaylýsoy, Özcan Bör
BACKGROUND: Lymphoma-associated incomplete Miller-Fisher syndrome is very rare. CASE CHARACTERISTICS: An 11-year-old boy who initially presented with headache, left ptosis, diplopia and weakness. Neurologic examination indicated left sided ptosis with ophthalmoplegia. OBSERVATIONS: Cerebral imaging and cerebrospinal fluid examinations were normal. Magnetic resonance imaging of the abdomen showed a mass lesion in the ileal loops. A bone marrow biopsy showed infiltration by Burkitt's lymphoma...
May 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28600336/diagnosis-and-classification-of-hematologic-malignancies-on-the-basis-of-genetics
#8
Justin Taylor, Wenbin Xiao, Omar Abdel-Wahab
Genomic analysis has greatly influenced the diagnosis and clinical management of patients affected by diverse forms of hematologic malignancies. Here we review how genetic alterations define subclasses of patients with acute leukemias, myelodysplastic syndromes (MDS), myeloproliferative neoplasms (MPNs), non-Hodgkin lymphomas and classical Hodgkin lymphoma. These include new subtypes of acute myeloid leukemia defined by mutations in RUNX1 or BCR-ABL1 translocations as well as a constellation of somatic structural DNA alterations in acute lymphoblastic leukemia...
June 9, 2017: Blood
https://www.readbyqxmd.com/read/28599352/haematological-cancers-in-african-children-progress-and-challenges
#9
REVIEW
Elizabeth Molyneux, Trish Scanlan, George Chagaluka, Lorna Renner
Cancer is increasingly important in low and middle-income settings where infectious diseases are declining. Childhood cancers treated in well-resourced centres have excellent outcomes with more than 80% survival. This success is not reflected in low-income settings where challenges involve every step on the care pathway. Access to diagnosis, delayed presentation, advanced disease, co-morbidities and underlying malnutrition make treatment difficult. Treatments are costly for impoverished families. Yet, the common haematological malignancies (Burkitt lymphoma, Hodgkin lymphoma, non Hodgkin lymphoma) are relatively easy to diagnose and, when managed with simple chemotherapy protocols, give limited but good results...
June 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28599272/pre-clinical-pharmacology-of-azd3965-a-selective-inhibitor-of-mct1-dlbcl-nhl-and-burkitt-s-lymphoma-anti-tumor-activity
#10
Nicola J Curtis, Lorraine Mooney, Lorna Hopcroft, Filippos Michopoulos, Nichola Whalley, Haihong Zhong, Clare Murray, Armelle Logie, Mitchell Revill, Kate F Byth, Amanda D Benjamin, Mike A Firth, Stephen Green, Paul D Smith, Susan E Critchlow
Tumors frequently display a glycolytic phenotype with increased flux through glycolysis and concomitant synthesis of lactate. To maintain glycolytic flux and prevent intracellular acidification, tumors efflux lactate via lactate transporters (MCT1-4). Inhibitors of lactate transport have the potential to inhibit glycolysis and tumor growth. We developed a small molecule inhibitor of MCT1 (AZD3965) and assessed its activity across a panel of cell lines. We explored its antitumor activity as monotherapy and in combination with doxorubicin or rituximab...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28597672/pancreas-burkitt-primary-lymphoma-in-pediatric-age
#11
Joao Araújo, Carlos Sampaio Macedo, Luciana Sousa
We present an the case of an eight-year-old Portuguese boy with no history of traveling, admitted with non-specific abdominal pain. An analytic study revealed high levels of lipase and amylase. Ultrasound, abdominal computerized tomography (CT), and an abdominal magnetic resonance imaging (MRI), were performed. The imaging findings are suggestive of a pancreatic tumor which is an extremely rare entity in children. A biopsy was performed by opened surgery and identified a Burkitt lymphoma.
June 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28593823/adult-burkitt-s-lymphoma-presenting-as-intussusception-first-uk-case-report
#12
R Simson, A Planner, Roderick Alexander
Colonic intussusception is rare in adults and can present with non-specific symptoms that can make diagnosis difficult and delayed. Unlike in children, it is commonly due to a pathological lead point that is often malignant. This case is the first reported case of adult intussusception due to Burkitt's lymphoma in the UK. We describe the case of a 22-year-old woman who presented with 4-week history of intermittent epigastric pain. On the third hospital admission, the diagnosis was made by abdominal computed tomography, which showed the 'sign' target, suggestive of intussusception...
June 8, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28592786/epstein-barr-virus-associated-lymphoproliferative-disorders-review-and-update-on-2016-who-classification
#13
Hyun-Jung Kim, Young Hyeh Ko, Ji Eun Kim, Seung-Sook Lee, Hyekyung Lee, Gyeongsin Park, Jin Ho Paik, Hee Jeong Cha, Yoo-Duk Choi, Jae Ho Han, Jooryung Huh
Epstein-Barr virus (human herpesvirus-4) is very common virus that can be detected in more than 95% of the human population. Most people are asymptomatic and live their entire lives in a chronically infected state (IgG positive). However, in some populations, the Epstein-Barr virus (EBV) has been involved in the occurrence of a wide range of B-cell lymphoproliferative disorders (LPDs), including Burkitt lymphoma, classic Hodgkin's lymphoma, and immune-deficiency associated LPDs (post-transplant and human immunodeficiency virus-associated LPDs)...
June 5, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28583033/burkitt-lymphoma-and-diffuse-large-b-cell-lymphoma-a-unique-case-of-a-composite-lymphoma-of-different-clonal-origin
#14
Elisabeth Höring, Annette M Staiger, Dido Lenze, Heike Horn, Matthias Vöhringer, Wolfgang Steurer, Walter E Aulitzky, German Ott
No abstract text is available yet for this article.
June 5, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28579851/transformation-of-follicular-lymphoma-to-a-high-grade-b-cell-lymphoma-with-myc-and-bcl2-translocations-and-overlapping-features-of-burkitt-lymphoma-and-acute-lymphoblastic-leukemia-a-case-report-and-literature-review
#15
Alina M Bischin, Russell Dorer, David M Aboulafia
Most commonly, histologic transformation (HT) from follicular lymphoma (FL) manifests as a diffuse large B-cell lymphoma, not otherwise specified (DLBCL, NOS). Less frequently, HT may result in a high-grade B-cell lymphoma (HGBL) with MYC and B-cell lymphoma protein 2 (BCL2) and/or BCL6 gene rearrangements, also known as "double-hit" or "triple-hit" lymphomas. In the 2016 revision of the World Health Organization (WHO) classification of lymphoid neoplasms, the category B-cell lymphoma, unclassifiable was eliminated due to its vague criteria and limiting diagnostic benefit...
2017: Clinical Medicine Insights. Blood Disorders
https://www.readbyqxmd.com/read/28578810/imaging-intra-abdominal-burkitt-s-lymphoma-from-discrete-bowel-wall-thickening-to-diffuse-soft-tissue-infiltration
#16
REVIEW
Alison C Harris, Kelly A MacLean, Gilat L Grunau, Silvia D Chang, Nancy Martin
Burkitt's lymphoma is a highly aggressive non-Hodgkin's B-cell lymphoma, which often presents with intra-abdominal involvement. The purpose of this pictorial review is to illustrate the various intra-abdominal imaging findings of Burkitt's lymphoma. Extranodal disease at presentation is common, including involvement of the bowel, stomach, pancreas, spleen, and mesentery.
May 31, 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28562582/the-b-cell-receptor-controls-fitness-of-myc-driven-lymphoma-cells-via-gsk3%C3%AE-inhibition
#17
Gabriele Varano, Simon Raffel, Martina Sormani, Federica Zanardi, Silvia Lonardi, Christin Zasada, Laura Perucho, Valentina Petrocelli, Andrea Haake, Albert K Lee, Mattia Bugatti, Ulrike Paul, Eelco Van Anken, Laura Pasqualucci, Raul Rabadan, Reiner Siebert, Stefan Kempa, Maurilio Ponzoni, Fabio Facchetti, Klaus Rajewsky, Stefano Casola
Similar to resting mature B cells, where the B-cell antigen receptor (BCR) controls cellular survival, surface BCR expression is conserved in most mature B-cell lymphomas. The identification of activating BCR mutations and the growth disadvantage upon BCR knockdown of cells of certain lymphoma entities has led to the view that BCR signalling is required for tumour cell survival. Consequently, the BCR signalling machinery has become an established target in the therapy of B-cell malignancies. Here we study the effects of BCR ablation on MYC-driven mouse B-cell lymphomas and compare them with observations in human Burkitt lymphoma...
June 8, 2017: Nature
https://www.readbyqxmd.com/read/28558641/high-incidence-of-infections-in-hiv-positive-patients-treated-for-lymphoproliferative-disorders
#18
A Calcagno, A Lucchini, D Caracciolo, R Balbiano, M Bracchi, F Sordella, G Gregori, F Lipani, S Audagnotto, M Chiriotto, G Cavaglià, V Ghisetti, G Di Perri, S Bonora
BACKGROUND: Lymphoproliferative disorders are frequently diagnosed in HIV-positive patients and severe infections may occur during antineoplastic treatments: the incidence and impact of such events are not well-characterized. OBJECTIVE: To describe the occurrence and mortality of incident infections in HIV-positive individuals treated for lymphoproliferative disorders. METHODS: A retrospective study in HIV-positive adults with lymphoproliferative disorders (2000-2012) who were hospitalised to receive antineoplastic chemotherapy; as well as antimicrobial prophylaxis with alternate day co-trimoxazole (800/160 mg)...
May 30, 2017: Current HIV Research
https://www.readbyqxmd.com/read/28557251/evidence-for-the-association-of-epstein-barr-virus-in-breast-cancer-in-indian-patients-using-in-situ-hybridization-technique
#19
Trupti Pai, Sudeep Gupta, Mamta Gurav, Shona Nag, Tanuja Shet, Asawari Patil, Sangeeta Desai
Epstein-Barr Virus (EBV) is etiologically linked to Burkitt lymphoma (BL), nasopharyngeal carcinoma, post-transplant lymphomas, Hodgkin disease, and possibly other tumors. However, the association of oncogenic EBV with breast carcinoma (BC) is still controversial and a matter of debate. We aimed to study the presence of EBV genome in BC cases in Indian patients and its association with the clinicopathological features. The formalin fixed paraffin embedded tissues from 83 women with primary invasive BC were studied for the presence of EBV by in-situ hybridization (ISH) technique for Epstein-Barr Virus Encoded RNA (EBER) with appropriate controls...
May 30, 2017: Breast Journal
https://www.readbyqxmd.com/read/28553616/the-oncolytic-virotherapy-era-in-cancer-management-prospects-of-applying-h-1-parvovirus-to-treat-blood-and-solid-cancers
#20
Assia L Angelova, Mathias Witzens-Harig, Angel S Galabov, Jean Rommelaere
Non-Hodgkin lymphoma (NHL) and leukemia are among the most common cancers worldwide. While the treatment of NHL/leukemia of B-cell origin has much progressed with the introduction of targeted therapies, few treatment standards have been established for T-NHL/leukemia. As presentation in both B- and T-NHL/leukemia patients is often aggressive and as prognosis for relapsed disease is especially dismal, this cancer entity poses major challenges and requires innovative therapeutic approaches. In clinical trials, oncolytic viruses (OVs) have been used against refractory multiple myeloma (MM)...
2017: Frontiers in Oncology
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