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Chronic lymphocytic leukemia

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https://www.readbyqxmd.com/read/28644154/acute-promyelocytic-leukemia-and-chronic-lymphocytic-leukemia-concomitant-presentation-of-two-molecularly-distinct-entities
#1
Jingdong Su, Diana Veillon, Rodney Shackelford, James Cotelingam, Hazem El-Osta, Glenn Mills, Reinhold Munker, Srinivas Devarakonda
Acute myeloid leukemia (AML) developing in patients with chronic lymphocytic leukemia (CLL) is very uncommon and usually associated with prior treatment. Acute promyelocytic leukemia (APL) accounts for a very small proportion of treatment-associated AML. So far, there has been only one reported case of APL occurring post radiation for prostate cancer in a patient with CLL. We report herein the first case of APL and CLL presenting concomitantly in an untreated patient. Evaluation of peripheral blood and bone marrow aspirate with immunohistochemistry, flow cytometry, and FISH to confirm two morphologically, molecularly and genetically distinct leukemic populations characteristic of APL and CLL is required...
May 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28642301/the-specific-btk-inhibitor-acalabrutinib-acp-196-shows-favorable-in-vitro-activity-against-chronic-lymphocytic-leukemia-b-cells-with-cd20-antibodies
#2
Josée Golay, Greta Ubiali, Martino Introna
No abstract text is available yet for this article.
June 22, 2017: Haematologica
https://www.readbyqxmd.com/read/28641468/association-between-immunoglobulin-heavy-chain-variable-region-mutational-status-and-isolated-favorable-baseline-genomic-aberrations-in-chronic-lymphocytic-leukemia
#3
Jose D Sandoval-Sus, Julio C Chavez, Samir Dalia, Syeda Mahrukh Hussnain Naqvi, Chetasi Talati, Lisa Nodzon, Mohamed A Kharfan-Dabaja, Javier Pinilla-Ibarz
Immunoglobulin heavy-chain variable region (IGHV) mutational status and karyotype abnormalities are important prognostic factors in chronic lymphocytic leukemia (CLL). The goal was to assess the impact of IGHV in CLL patients with isolated favorable genetic aberrations (del13q, trisomy 12, or negative fluorescence in situ hybridization [FISH]). We studied 273 CLL patients with both IGHV mutational status and cytogenetic information: 145 with isolated del13q 49 with sole trisomy 12 and 79 with negative FISH...
June 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28639485/increased-shisa3-expression-characterizes-chronic-lymphocytic-leukemia-patients-sensitive-to-lenalidomide
#4
Rossana Maffei, Stefania Fiorcari, Silvia Martinelli, Stefania Benatti, Jenny Bulgarelli, Lara Rizzotto, Giulia Debbia, Rita Santachiara, Gian Matteo Rigolin, Francesco Forconi, Davide Rossi, Luca Laurenti, Giuseppe A Palumbo, Daniele Vallisa, Antonio Cuneo, Gianluca Gaidano, Mario Luppi, Roberto Marasca
Lenalidomide is a therapeutically effective drug in chronic lymphocytic leukemia (CLL). Twenty-seven CLL patients were treated with lenalidomide in a phase II clinical trial. Ten patients were grouped as responders (R) and 6 as nonresponders (NR). We evaluated T lymphocytes, NK, monocytes and dendritic cells at baseline and after treatment. A gene expression analysis was performed on 16 CLL samples collected before treatment. The levels of immune cells or immune-related cytokines are not different between R and NR patients...
June 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28639416/persistently-low-lymphocyte-counts-after-fcr-therapy-for-chronic-lymphocytic-leukemia-are-associated-with-longer-overall-survival
#5
Erel Joffe, N Ariela Arad, Osnat Bairey, Riva Fineman, Rosa Ruchlemer, Naomi Rahimi-Levene, Lev Shvidel, Uri Greenbaum, Ariel Aviv, Tamar Tadmor, Andrei Braester, Neta Goldschmidt, Aaron Polliack, Yair Herishanu
Decreased absolute lymphocyte counts (ALCs) following frontline therapy for chronic lymphocytic leukemia may be associated with disease control, even in patients without evidence of minimal residual disease. We studied the prognostic significance of ALCs during the first year following treatment with fludarabine, cyclophosphamide, and rituximab (FCR). We evaluated 99 patients who achieved a partial response without lymphocytosis (<4.0 × 10(3) cells/μL) or better after FCR. Absolute lymphocyte counts were recorded at 3-, 6-, 9-, and 12-month posttreatment and correlated with overall survival (OS) and event-free survival (EFS)...
June 22, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28632812/systemic-interferon-alfa-injections-for-the-treatment-of-a-giant-orf
#6
Sumeyre Seda Ertekin, Mehmet Salih Gurel, Aslı Vefa Turgut Erdemir, Cem Leblebici
Orf is a zoonotic infection caused by a parapoxvirus and is endemic in sheep and goats. It may be transmitted to humans by direct contact with infected animals. We report a case of a giant orf in a patient with chronic lymphocytic leukemia (CLL), which proliferated dramatically after surgical excision and resolved after systemic interferon alfa-2a injections.
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28627951/the-safety-of-bruton-s-tyrosine-kinase-inhibitors-for-the-treatment-of-chronic-lymphocytic-leukemia
#7
Phu N Tran, Susan O'Brien
The approval of ibrutinib has revolutionized the therapeutic landscape of chronic lymphocytic leukemia (CLL). Currently ibrutinib is indicated for patients that are both treatment naïve as well as those with relapsed CLL. Ibrutinib is generally well-tolerated with durable responses that improve over time in most patients. Important toxicities include atrial fibrillation and bleeding. Areas Cover: This review covers the pharmacokinetics, pharmacodynamics, safety and efficacy of ibrutinib in the treatment of CLL...
June 19, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28623673/a-prominent-lactate-peak-as-a-potential-key-magnetic-resonance-spectroscopy-mrs-feature-of-progressive-multifocal-leukoencephalopathy-pml-spectrum-pattern-observed-in-three-patients
#8
Duško Kozić, Mladen Bjelan, Jasmina Boban, Jelena Ostojić, Vesna Turkulov, Aleksandar Todorović, Slobodanka Lemajić-Komazec, Snežana Brkić
Progressive multifocal leukoencephalopathy (PML) is a rare, often fatal, opportunistic infection, associated with demyelinating process. PML is caused by John Cunningham (JC) polyomavirus, and predominantly involves patients with human immunodeficiency virus (HIV) disease or other immunocompromised conditions. The purpose of this report was to determine the role of magnetic resonance spectroscopy (MRS) in establishing the diagnosis of PML. MRS with long and short echo time was performed in two patients with PML associated with HIV infection and in one PML patient associated with chronic lymphocytic leukemia...
June 17, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28620003/correction-indole-3-carbinol-synergizes-with-and-restores-fludarabine-sensitivity-in-chronic-lymphocytic-leukemia-cells-irrespective-of-p53-activity-and-treatment-resistances
#9
(no author information available yet)
No abstract text is available yet for this article.
June 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28619847/targeted-activation-of-the-shp-1-pp2a-signalling-axis-elicits-apoptosis-of-chronic-lymphocytic-leukemia-cells
#10
Elena Tibaldi, Mario Angelo Pagano, Federica Frezzato, Valentina Trimarco, Monica Facco, Giuseppe Zagotto, Giovanni Ribaudo, Valeria Pavan, Luciana Bordin, Andrea Visentin, Francesca Zonta, Gianpietro Semenzato, Anna Maria Brunati, Livio Trentin
The Src Family Kinase (SFK) Lyn is a key factor in the dysregulation of survival and apoptotic pathways of malignant B cells in chronic lymphocytic leukemia. One of the effects of Lyn's action is the spatial and functional segregation of the tyrosine phosphatase SHP-1 into two pools, one beneath the plasma membrane in an active state promoting pro-survival signals, the other in the cytosol in an inhibited conformation and unable to counter the elevated level of cytosolic tyrosine phosphorylation. We herein show that SHP-1 activity can be elicited directly by nintedanib, an agent also known as a triple angiokinase inhibitor, circumventing the phospho-S591-dependent inhibition of the phosphatase, leading to the dephosphorylation of pro-apoptotic players such as procaspase-8 and the serine/threonine phosphatase 2A, eventually triggering apoptosis...
June 15, 2017: Haematologica
https://www.readbyqxmd.com/read/28619845/the-prohibitin-binding-compound-fluorizoline-induces-apoptosis-in-chronic-lymphocytic-leukemia-cells-through-the-upregulation-of-noxa-and-synergizes-with-ibrutinib-aicar-or-venetoclax
#11
Ana M Cosialls, Helena Pomares, Daniel Iglesias-Serret, José Saura-Esteller, Sonia Núñez-Vázquez, Diana M González-Gironès, Esmeralda de la Banda, Sara Preciado, Fernando Albericio, Rodolfo Lavilla, Gabriel Pons, Eva M González-Barca, Joan Gil
Fluorizoline is a new synthetic molecule that induces apoptosis by selectively targeting prohibitins. In this study, the pro-apoptotic effect of fluorizoline was assessed in 34 primary samples from patients with chronic lymphocytic leukemia. Fluorizoline induced apoptosis in chronic lymphocytic leukemia cells at concentrations in the low micromolar range. All primary samples were sensitive to fluorizoline irrespectively of patients' clinical or genetic features, whereas normal T lymphocytes were less sensitive...
June 15, 2017: Haematologica
https://www.readbyqxmd.com/read/28615515/occupational-ultraviolet-exposure-and-risk-of-non-hodgkin-s-lymphomas-a-meta-analysis
#12
Demin Lu, Fei Xu, Kaiming Hu, Li Yin, Huijie Duan, Jiaojiao Zhang, SuZhan Zhang
Non-Hodgkin lymphoma is a heterogeneous group of lympho-proliferative disorders. We performed a meta-analysis to summarize the available evidence from case-control studies and cohort study on the inconsistent association between occupational sun exposure and the risk of non-Hodgkin lymphoma. We searched PubMed, ISI web of science, the Cochrane Library, EMBASE and reference lists for relevant articles. Study specific odds ratios or relative risk and 95% confidence intervals were pooled by using fixed-effects or random-effects models...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28615198/polymorphic-nature-of-htlv-1-particle-cores-as-revealed-through-characterization-of-a-chronically-infected-cell-line
#13
Morgan E Meissner, Luiza Mendonça, Wei Zhang, Louis M Mansky
Human T-cell leukemia virus type 1 (HTLV-1) is the etiological agent of adult T-cell leukemia (ATL) and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). HTLV-1 cell-to-cell transmission is dependent on the release of infectious virus particles into the virological synapse. HTLV-1 particle structure is still poorly understood, and previous studies have analyzed viruses produced by transformed lymphocytic cell lines chronically infected with HTLV-1, particularly the MT-2 cell line, which harbors truncated proviruses and expresses aberrant forms of the Gag protein...
June 14, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28614781/cell-lines-generated-from-a-chronic-lymphocytic-leukemia-mouse-model-exhibit-constitutive-btk-and-akt-signaling
#14
Simar Pal Singh, Saravanan Y Pillai, Marjolein J W de Bruijn, Ralph Stadhouders, Odilia B J Corneth, Henk Jan van den Ham, Alice Muggen, Wilfred van IJcken, Erik Slinger, Annemieke Kuil, Marcel Spaargaren, Arnon P Kater, Anton W Langerak, Rudi W Hendriks
Chronic lymphocytic leukemia (CLL) is characterized by the accumulation of mature CD5+ B cells in blood. Spontaneous apoptosis of CLL cells in vitro has hampered in-depth investigation of CLL pathogenesis. Here we describe the generation of three monoclonal mouse cell lines, EMC2, EMC4 and EMC6, from the IgH.TEμ CLL mouse model based on sporadic expression of SV40 large T antigen. The cell lines exhibit a stable CD5+CD43+IgM+CD19+ CLL phenotype in culture and can be adoptively transferred into Rag1-/- mice...
May 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28614214/a-rare-case-of-multiple-thrombi-in-a-giant-left-atrium
#15
Alfredo Intorcia, Marco A Perrone, Riccardo Morgagni, Domenico Sergi, Massimo Marchei, Mauro Borzi, Francesco Romeo
: Giant left atrium is frequently associated with rheumatic mitral valve disease. The incidence of left atrial thrombus among patients with mitral stenosis and atrial fibrillation varies from 7 to 38%. Anticoagulation therapy achieves a high rate of resolution of left atrial appendage (LAA) and left atrial cavity thrombi, but in selected patients surgical therapy must be considered. An 81-year-old woman presented to our emergency department with repeated episodes of transient ischemic attack. She had a history of carotid artery stenosis, chronic lymphocytic leukemia, rheumatic heart disease, and paroxysmal atrial fibrillation...
June 12, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28610607/resveratrol-distinctively-modulates-the-inflammatory-profiles-of-immune-and-endothelial-cells
#16
Joseph Schwager, Nathalie Richard, Franziska Widmer, Daniel Raederstorff
BACKGROUND: The phenolic substance resveratrol (RES) is a plant metabolite known to modulate numerous physiological functions and to exert beneficial effects as a cancer-chemopreventing agent and on neurological, hepatic, and cardiovascular systems. Since the compound affects the lifespan of yeast and flies it might be an anti-aging substance. Mechanistically, RES is involved in down regulating the inflammatory response. The pleiotropic effects of RES in cells of the immune and endothelial system were examined in this study...
June 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28609263/image-diagnosis-a-gastric-signet-ring-adenocarcinoma-of-type-linitis-plastica-mimicking-splenomegaly-in-a-patient-with-chronic-lymphocytic-leukemia
#17
Leonid L Yavorkovsky, Shazia Ali
No abstract text is available yet for this article.
2017: Permanente Journal
https://www.readbyqxmd.com/read/28605619/progress-in-tp53-deficient-chronic-lymphocytic-leukemia-more-questions-than-answers
#18
R Gregory Bociek
No abstract text is available yet for this article.
June 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28605617/chronic-lymphocytic-leukemia-with-tp53-aberrations-breakthroughs-and-challenges
#19
Simone A Edenhofer, Stephan Stilgenbauer
No abstract text is available yet for this article.
June 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28605616/managing-patients-with-tp53-deficient-chronic-lymphocytic-leukemia
#20
Jennifer Edelmann, John G Gribben
Patients with chronic lymphocytic leukemia (CLL) having a chromosomal loss on the short arm of chromosome 17 including the TP53 gene locus (17p deletion) and/or having mutations in TP53 have a short overall survival and, until recently, limited treatment options. The recent introduction of two novel substance classes, B-cell receptor inhibitors and BH3 mimetics, into CLL treatment has provided enormous clinical progress in this previously difficult-to-treat patient subgroup characterized by high risk for treatment failure with standard chemoimmunotherapy and rapid disease progression...
June 2017: Journal of Oncology Practice
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