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https://www.readbyqxmd.com/read/28321092/refractory-double-hit-lymphoma-leukemia-in-childhood-mimicking-b-precursor-acute-lymphoblastic-leukemia-at-initial-presentation
#1
Suguru Uemura, Daiichiro Hasegawa, Takehito Yokoi, Nanako Nino, Teppei Tahara, Akihiro Tamura, Atsuro Saito, Aiko Kozaki, Kenji Kishimoto, Toshiaki Ishida, Keiichiro Kawasaki, Nobuyuki Yamamoto, Takeshi Mori, Noriyuki Nishimura, Yoshiyuki Kosaka
A 10-year-old girl was referred to our hospital with left preauricular adenopathy and gingival swelling. She was diagnosed with B-cell precursor acute lymphoblastic leukemia (BCP-ALL) based on being positive for expressions of CD10, CD19, TdT and HLA-DR. She showed no CD20 expression at the time of diagnosis. Based on the initial diagnosis of BCP-ALL, induction chemotherapy for BCP-ALL was initiated. However, the blasts did not disappear from her peripheral blood. Bone marrow examination on day 33 identified 81...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28269535/experiences-of-a-general-practitioner-in-the-daily-practice-about-digital-health-literacy-the-real-needs
#2
M Traver, I Basagoiti, A Martinez-Millana, C Fernandez-Llatas, V Traver
Digital Health Literacy (DHL) is a key element to promote patient empowerment. This position paper presents the lessons learnt from the daily activities of a General Practitioner interacting with patients. General Practitioners have a main role in each stage on individual digital health literacy process. They are the first meeting point between patients and the medical knowledge; in the search phase, they are who can prescribe and validate health information; in the comprehension phase, they lead to a full understanding; and in the adoption phase, they assist in the own personal application...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227790/experiences-of-a-general-practitioner-in-the-daily-practice-about-digital-health-literacy-the-real-needs
#3
M Traver, I Basagoiti, A Martinez-Millana, C Fernandez-Llatas, V Traver, M Traver, I Basagoiti, A Martinez-Millana, C Fernandez-Llatas, V Traver, M Traver, C Fernandez-Llatas, V Traver, I Basagoiti, A Martinez-Millana
Digital Health Literacy (DHL) is a key element to promote patient empowerment. This position paper presents the lessons learnt from the daily activities of a General Practitioner interacting with patients. General Practitioners have a main role in each stage on individual digital health literacy process. They are the first meeting point between patients and the medical knowledge; in the search phase, they are who can prescribe and validate health information; in the comprehension phase, they lead to a full understanding; and in the adoption phase, they assist in the own personal application...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28194473/tapping-the-genetic-diversity-of-landraces-in-allogamous-crops-with-doubled-haploid-lines-a-case-study-from-european-flint-maize
#4
Juliane Böhm, Wolfgang Schipprack, H Friedrich Utz, Albrecht E Melchinger
Using landraces for broadening the genetic base of elite maize germplasm is hampered by heterogeneity and high genetic load. Production of DH line libraries can help to overcome these problems. Landraces of maize (Zea mays L.) represent a huge reservoir of genetic diversity largely untapped by breeders. Genetic heterogeneity and a high genetic load hamper their use in hybrid breeding. Production of doubled haploid line libraries (DHL) by the in vivo haploid induction method promises to overcome these problems...
February 13, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28111794/selection-of-broad-spectrum-cephalosporin-resistant-escherichia-coli-in-the-feces-of-healthy-dogs-after-first-generation-cephalosporin-administration
#5
Ayako Kimura, Montira Yossapol, Sanae Shibata, Tetsuo Asai
Although antimicrobial products are essential for the treatment of bacterial disease, antimicrobial treatment selects for antimicrobial-resistant (AMR) bacteria. The aim of this study was to determine the effects of first-generation cephalosporin administration on the development of resistant Escherichia coli in dog feces. The proportions of cephalexin (LEX)-resistant E. coli in fecal samples of three healthy dogs treated intravenously with cefazolin before castration and then orally with LEX for 3 days post-operation (PO) were examined using DHL agar with or without LEX (50 μg/mL)...
January 23, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28069035/fbw7-regulates-apoptosis-in-activated-b-cell-like-diffuse-large-b-cell-lymphoma-by-targeting-stat3-for-ubiquitylation-and-degradation
#6
Su Yao, Fangping Xu, Yu Chen, Yan Ge, Fen Zhang, Huijie Huang, Li Li, Danyi Lin, Xinlan Luo, Jie Xu, Donglan Luo, Xiaolan Zhu, Yanhui Liu
BACKGROUND: The ubiquitin-ligase Fbw7 acts as a tumor suppressor, targeting lots of proto-oncogenes for proteolysis. However, the exact role of Fbw7 in diffuse large B-cell lymphoma (DLBCL) development remains unclear. METHODS: We evaluated Fbw7 expression in patient samples of DLBCL using immunohistochemical staining. The effect of Fbw7 overexpression on cell viability and apoptosis was investigated using activated B-cell (ABC) like DLBCL cell lines. The mechanism of Fbw7 activity in DLBCL was investigated using immunoprecipitation, ubiquitination, western blot and qualitative analyses...
January 10, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28061782/double-hit-lymphomas-clinical-morphological-immunohistochemical-and-cytogenetic-study-in-a-series-of-brazilian-patients-with-high-grade-non-hodgkin-lymphoma
#7
Cristiano Claudino Oliveira, Helena Maciel-Guerra, Luan Kucko, Eric Jun Hirama, Américo Delgado Brilhante, Francisco Carlos Quevedo, Isabela Werneck da Cunha, Fernando Augusto Soares, Ligia Niero-Melo, Patrícia Pintor Dos Reis, Maria Aparecida Custodio Domingues
BACKGROUND: Double-hit lymphomas (DHL) are rare high-grade neoplasms characterized by two translocations: one involving the gene MYC and another involving genes BCL2 or BCL6, whose diagnosis depends on cytogenetic examination. This research studied DHL and morphological and/or immunophenotypic factors associated with the detection of these translocations in a group of high-grade non-Hodgkin lymphoma cases. METHOD: Clinical and morphological reviews of 120 cases diagnosed with diffuse large B-cell lymphoma and Burkitt lymphoma were conducted...
January 7, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28034071/relapsed-or-refractory-double-expressor-and-double-hit-lymphomas-have-inferior-progression-free-survival-after-autologous-stem-cell-transplantation
#8
Alex F Herrera, Matthew Mei, Lawrence Low, Haesook T Kim, Gabriel K Griffin, Joo Y Song, Reid W Merryman, Victoria Bedell, Christine Pak, Heather Sun, Tanya Paris, Tracey Stiller, Jennifer R Brown, Lihua E Budde, Wing C Chan, Robert Chen, Matthew S Davids, Arnold S Freedman, David C Fisher, Eric D Jacobsen, Caron A Jacobson, Ann S LaCasce, Joyce Murata-Collins, Auayporn P Nademanee, Joycelynne M Palmer, German A Pihan, Raju Pillai, Leslie Popplewell, Tanya Siddiqi, Aliyah R Sohani, Jasmine Zain, Steven T Rosen, Larry W Kwak, David M Weinstock, Stephen J Forman, Dennis D Weisenburger, Young Kim, Scott J Rodig, Amrita Krishnan, Philippe Armand
Purpose Double-hit lymphomas (DHLs) and double-expressor lymphomas (DELs) are subtypes of diffuse large B-cell lymphoma (DLBCL) associated with poor outcomes after standard chemoimmunotherapy. Data are limited regarding outcomes of patients with relapsed or refractory (rel/ref) DEL or DHL who undergo autologous stem-cell transplantation (ASCT). We retrospectively studied the prognostic impact of DEL and DHL status on ASCT outcomes in patients with rel/ref DLBCL. Methods Patients with chemotherapy-sensitive rel/ref DLBCL who underwent ASCT at two institutions and in whom archival tumor material was available were enrolled...
January 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28001444/vitamin-d-receptor-expression-in-plasmablastic-lymphoma-and-myeloma-cells-confers-susceptibility-to-vitamin-d
#9
Duncan M Gascoyne, Linden Lyne, Hayley Spearman, Francesca M Buffa, Elizabeth J Soilleux, Alison H Banham
Plasmablastic B-cell malignancies include plasmablastic lymphoma and subsets of multiple myeloma and diffuse large B-cell lymphoma (DLBCL). These diseases can be difficult to diagnose and treat, and lack well-characterised cell line models. Here, immunophenotyping and FOXP1 expression profiling identified plasmablastic characteristics in DLBCL cell lines HLY-1 and SU-DHL-9, associated with CTNNAL1, HPGD, RORα, IGF1 and/or vitamin D receptor (VDR) transcription. We demonstrated VDR protein expression in primary plasmablastic tumour cells, and confirmed in cell lines expression of both VDR and the metabolic enzyme CYP27B1, which catalyses active vitamin D3 production...
December 21, 2016: Endocrinology
https://www.readbyqxmd.com/read/27913204/the-selective-bcl-2-inhibitor-venetoclax-a-bh3-mimetic-does-not-dysregulate-intracellular-ca-2-signaling
#10
Tamara Vervloessem, Hristina Ivanova, Tomas Luyten, Jan B Parys, Geert Bultynck
Anti-apoptotic B cell-lymphoma-2 (Bcl-2) proteins are emerging as therapeutic targets in a variety of cancers for precision medicines, like the BH3-mimetic drug venetoclax (ABT-199), which antagonizes the hydrophobic cleft of Bcl-2. However, the impact of venetoclax on intracellular Ca(2+) homeostasis and dynamics in cell systems has not been characterized in detail. Here, we show that venetoclax did not affect Ca(2+)-transport systems from the endoplasmic reticulum (ER) in permeabilized cell systems. Venetoclax (1μM) did neither trigger Ca(2+) release by itself nor affect agonist-induced Ca(2+) release in a variety of intact cell models...
November 30, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27888878/the-spectrum-of-double-hit-lymphomas
#11
REVIEW
Jeremy S Abramson
Double-hit lymphomas (DHLs) characterize a unique subset of B-cell non-Hodgkin lymphomas. DHL typically presents in older adults with high-risk clinical features. This entity carries a significantly inferior prognosis compared with typical cases of diffuse large B-cell lymphoma; however, emerging literature can identify discrete clinical features within DHL that are associated with a favorable prognosis. Emerging literature is also demonstrating that intensive upfront treatment strategies may improve outcome...
December 2016: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/27888664/ebv-associated-but-hhv8-unrelated-double-hit-effusion-based-lymphoma
#12
Bo-Jung Chen, David Yen-Ting Chen, Chun-Chi Kuo, Shih-Sung Chuang
Effusion-based lymphoma is a rare and unique type of large B-cell lymphoma presenting in effusion without a mass lesion. It shares many clinicopathological features with primary effusion lymphoma (PEL), but is distinct from PEL by the absence of HHV8 association. Double hit lymphoma (DHL) is an aggressive B-cell lymphoma, defined by concurrent rearrangement of MYC and BCL2 or BCL6. DHL often presents as lymphadenopathy or an extranodal mass, but rarely occurs in effusion. Here we report a 61-year-old male with alcoholic cirrhosis presenting as massive ascites and left pleural effusion...
March 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27858214/synthesis-and-biological-evaluation-of-n-3-oxo-3-4-dihydro-2h-benzo-b-1-4-oxazin-7-yl-benzenesulfonamide-derivatives-as-new-bet-bromodomain-inhibitors-for-anti-hematologic-malignancies-activities
#13
Li Liu, Yongxia Zhu, Zhihao Liu, Tinghong Ye, Weiqiong Zuo, Cuiting Peng, Kunjie Xiao, Ningyu Wang, Luoting Yu
The bromodomain and extra-terminal proteins (BETs), in particular BRD4, has been reported to play important roles in cancer, inflammation, obesity, cardiovascular disease, and neurological disorders. In this paper, a series of benzomorpholinone derivatives were synthesized and biologically evaluated as BETs inhibitors. Detailed structure-activity relationship studies led to the discovery of several new potent compounds, of which 15h and 15i displayed [Formula: see text] values of 2.8 and 4.5 [Formula: see text] against BRD4 (D1), respectively, and showed good anti-proliferation activities against four hematologic malignancies cell lines at low-micromolar concentrations, including MV4-11, OCI-LY10, Pfeifer, and Su-DHL-6 cells...
February 2017: Molecular Diversity
https://www.readbyqxmd.com/read/27846451/sar-study-of-5-alkynyl-substituted-quinazolin-4-3h-ones-as-phosphoinositide-3-kinase-delta-pi3k%C3%AE-inhibitors
#14
Manman Wei, Xi Zhang, Xiang Wang, Zilan Song, Jian Ding, Ling-Hua Meng, Ao Zhang
PI3Kδ is a key component in the aberrant signaling transduction in B cell malignancy, therefore specific targeting PI3Kδ has become an attractive molecularly targeted therapy for chronic lymphocytic leukemia (CLL). Herein, we describe the discovery and optimization of a series of 5-alkynyl substituted PI3Kδ inhibitors based on the first FDA-approved inhibitor idelalisib. Compound 8d bearing the 1-morpholinohex-5-yn-1-one moiety as the C5-substituent was identified to have high potency against PI3Kδ (3.82 nM) and SU-DHL-6 cells (7...
January 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27825800/dhl-hiszn-a-novel-antioxidant-enhances-adipogenic-differentiation-and-antioxidative-response-in-adipose-derived-stem-cells
#15
Chien-Chih Chen, Li-Wen Hsu, Toshiaki Nakano, Kuang-Tzu Huang, Kuang-Den Chen, Chia-Yun Lai, Shigeru Goto, Chao-Long Chen
Adipose-derived stem cells (ASCs) are multipotent progenitor cells that have the capacity to differentiate into specific mesenchymal cell lineages including adipocytes in response to environmental cues. Dysfunctional adipose tissue, rather than an excess of adipose tissue, has been proposed as a key factor in the pathogenesis of obesity-related diseases. The insulin-sensitizing effects of antidiabetic drugs are mediated by activation of peroxisome proliferator-activated receptor gamma (PPARγ). Here, we investigated the effects of sodium zinc histidine dithiooctanamide (DHL-HisZn), a strong antioxidant, on PPARγ activation, adipocyte differentiation and insulin sensitivity...
December 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27806821/double-hit-lymphoma-arare-subset-of-diffuse-large-b-cell-lymphoma-with-poor-outcome
#16
Sajid Zaman, Jawad A Gillani, Rashid Rasheed
Double-hit lymphoma (DHL) has been identified as a subset of diffuse large B-cell lymphoma with poor clinical outcomes. It is because of genetic translocation of C-myc and Bcl2 gene that make it more aggressive and un-responsive to conventional and salvage treatments. DHLis an extremely rare entity of non-Hodgkin's lymphoma (NHL) having no established incidence data so far. In literature very limited data is available to guide therapeutic decisions and despite aggressive chemotherapy followed by autologus hematopoietic cell transplantation, outcomes still remain poor...
October 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27806737/effect-of-guaianolides-in-the-meiosis-reinitiation-of-amphibian-oocytes
#17
J Zapata-Martínez, G Sánchez-Toranzo, F Chaín, C A N Catalán, M I Bühler
Sesquiterpene lactones (STLs) are a large and structurally diverse group of plant metabolites generally found in the Asteraceae family. STLs exhibit a wide spectrum of biological activities and it is generally accepted that their major mechanism of action is the alkylation of the thiol groups of biological molecules. The guaianolides is one of various groups of STLs. Anti-tumour and anti-migraine effects, an allergenic agent, an inhibitor of smooth muscle cells and of meristematic cell proliferation are only a few of the most commonly reported activities of STLs...
February 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27803769/hepatitis-c-and-double-hit-b-cell-lymphoma-successfully-treated-by-antiviral-therapy
#18
Giovanni Galati, Lorenzo Rampa, Umberto Vespasiani-Gentilucci, Mirella Marino, Francesco Pisani, Carlo Cota, Alessandro Guidi, Antonio Picardi
B cells lymphoma is one of the most challenging extra-hepatic manifestations of hepatitis C virus (HCV). Recently, a new kind of B-cell lymphoma, named double-hit B (DHL), was characterized with an aggressive clinical course whereas a potential association with HCV was not investigated. The new antiviral direct agents (DAAs) against HCV are effective and curative in the majority of HCV infections. We report the first case, to our knowledge, of DHL and HCV-infection successfully treated by new DAAs. According to our experience, a DHL must be suspected in case of HCV-related lymphoma, and an early diagnosis could direct towards a different hematological management because a worse prognosis might be expected...
October 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27799353/posaconazole-loaded-leukocytes-as-a-novel-treatment-strategy-targeting-invasive-pulmonary-aspergillosis
#19
Shane R Baistrocchi, Mark J Lee, Melanie Lehoux, Benjamin Ralph, Brendan D Snarr, Robert Robitaille, Donald C Sheppard
BACKGROUND: Impaired delivery of antifungals to hyphae within necrotic lesions is thought to contribute to therapeutic failure in invasive pulmonary aspergillosis (IPA). We hypothesized that transfusion of leukocytes loaded ex vivo with the lipophilic antifungal posaconazole could improve delivery of antifungals to the sites of established infection and improve outcome in experimental IPA. METHODS: The HL-60 leukemia cell line was differentiated to a neutrophil-like phenotype (differentiated HL-60 [dHL-60] cells) and then exposed to a range of posaconazole concentrations...
October 31, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27742770/inhibition-of-demethylase-kdm6b-sensitizes-diffuse-large-b-cell-lymphoma-to-chemotherapeutic-drugs
#20
Rohit Mathur, Lalit Sehgal, Ondrej Havranek, Stefan Köhrer, Tamer Khashab, Neeraj Jain, Jan A Burger, Sattva S Neelapu, R Eric Davis, Felipe Samaniego
Histone methylation and demethylation regulate B-cell development, and their deregulation correlates with tumor chemoresistance in diffuse large B-cell lymphoma, limiting cure rates. Since histone methylation status correlates with disease aggressiveness and relapse, we investigated the therapeutic potential of inhibiting histone 3 Lys27 demethylase KDM6B, in vitro, using the small molecule inhibitor GSK-J4. KDM6B is overexpressed in the germinal center B-cell subtype of diffuse large B-cell lymphoma, and higher KDM6B levels are associated with worse survival in patients with diffuse large B-cell lymphoma treated with R-CHOP...
February 2017: Haematologica
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