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"Chronic lymphocytic leukemia"

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https://www.readbyqxmd.com/read/28324286/prolymphocytic-leukemia-new-insights-in-diagnosis-and-in-treatment
#1
REVIEW
Aude Collignon, Anne Wanquet, Elsa Maitre, Edouard Cornet, Xavier Troussard, Thérèse Aurran-Schleinitz
PURPOSE OF REVIEW: We aimed to produce a comprehensive update on clinical and biological data regarding two rare lymphoid neoplasms, B and T prolymphocytic leukemias, and assess therapeutic management in the light of new molecular insights and the advent of targeted therapies. RECENT FINDINGS: B cell prolymphocytic leukemia (B-PLL) diagnosis remains challenging in the absence of clear immunophenotypic or cytogenetic signature and overlap with mantle cell lymphoma...
April 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28319632/widespread-poikilodermatous-dermatomyositis-associated-with-chronic-lymphocytic-leukemia
#2
Daniel J Ventarola, Paul C Contard, Robert G Phelps
No abstract text is available yet for this article.
February 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28314854/common-nonmutational-notch1-activation-in-chronic-lymphocytic-leukemia
#3
Giulia Fabbri, Antony B Holmes, Mara Viganotti, Claudio Scuoppo, Laura Belver, Daniel Herranz, Xiao-Jie Yan, Yasmine Kieso, Davide Rossi, Gianluca Gaidano, Nicholas Chiorazzi, Adolfo A Ferrando, Riccardo Dalla-Favera
Activating mutations of NOTCH1 (a well-known oncogene in T-cell acute lymphoblastic leukemia) are present in ∼4-13% of chronic lymphocytic leukemia (CLL) cases, where they are associated with disease progression and chemorefractoriness. However, the specific role of NOTCH1 in leukemogenesis remains to be established. Here, we report that the active intracellular portion of NOTCH1 (ICN1) is detectable in ∼50% of peripheral blood CLL cases lacking gene mutations. We identify a "NOTCH1 gene-expression signature" in CLL cells, and show that this signature is significantly enriched in primary CLL cases expressing ICN1, independent of NOTCH1 mutation...
March 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28314441/erratum-to-higher-t-cell-imbalance-and-growth-factor-receptor-expression-in-b-cell-chronic-lymphocytic-leukemia-b-cll-as-compared-to-monoclonal-b-cell-lymphocytosis-of-undetermined-significance-b-mlus-leukemia-res-13-1-1989-31-37
#4
C Garcia, A Rosén, E Kimby, M Aguilar-Santelises, M Jondal, M Björkhilm, G Holm, H Mellstedt
No abstract text is available yet for this article.
March 14, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28306177/frequency-and-functional-characterization-of-exhausted-cd8-t-cells-in-chronic-lymphocytic-leukemia
#5
Saeid Taghiloo, Esmaeil Allahmoradi, Mohsen Tehrani, Hadi Hossein-Nataj, Ramin Shekarriz, Ghasem Janbabaei, Saeid Abediankenari, Hossein Asgarian-Omran
OBJECTIVES: The phenotypic and functional properties of Tim-3+/PD-1+/CD8+ cells as exhausted T-cells were investigated in chronic lymphocytic leukemia (CLL). METHODS: Frequency of CD8+/Tim-3+/PD-1+ exhausted cells was determined by flow cytometry. For functional analysis, magnetic beads isolated CD8+ T-cells were stimulated with PHA and PMA/ionocymin to assess their proliferative responses and cytokine production by MTT and ELISA, respectively. Cytotoxic activity of isolated CD8+ T-cells was determined using CD107a degranulation assay...
March 17, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28302939/concurrent-with-t-zone-lymphoma-and-high-grade-gastrointestinal-cytotoxic-t-cell-lymphoma-in-a-dog
#6
Akihisa Suwa, Tetsuya Shimoda
A 9-year-old, spayed female Golden Retriever dog was referred to us for lymphocytosis and lymphadenopathy, secondary to suspected chronic lymphocytic leukemia (CLL). The dog had a clinical history of anorexia, vomiting and melena lasting two days. The popliteal lymph node contained small-to-intermediate lymphocytes, which led us to suspect low-grade lymphoma. Thickened lesions in the stomach and small intestine were detected by ultrasonography. Histopathology of the popliteal lymph node and small intestine revealed a simultaneous presence of T-zone lymphoma (TZL) and high-grade gastrointestinal (GI) cytotoxic T-cell lymphoma...
March 12, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28302090/characterizing-and-prognosticating-chronic-lymphocytic-leukemia-in-the-elderly-prospective-evaluation-on-455-patients-treated-in-the-united-states
#7
Chadi Nabhan, Anthony Mato, Christopher R Flowers, David L Grinblatt, Nicole Lamanna, Mark A Weiss, Matthew S Davids, Arlene S Swern, Shriya Bhushan, Kristen Sullivan, E Dawn Flick, Pavel Kiselev, Jeff P Sharman
BACKGROUND: Median age at diagnosis of patients with chronic lymphocytic leukemia (CLL) is > 70 years. However, the majority of clinical trials do not reflect the demographics of CLL patients treated in the community. We examined treatment patterns, outcomes, and disease-related mortality in patients ≥ 75 years with CLL (E-CLL) in a real-world setting. METHODS: The Connect® CLL registry is a multicenter, prospective observational cohort study, which enrolled 1494 adult patients between 2010-2014, at 199 US sites...
March 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28302063/epigenetic-and-genetic-alterations-and-their-influence-on-gene-regulation-in-chronic-lymphocytic-leukemia
#8
Di Huang, Ivan Ovcharenko
BACKGROUND: To understand the changes of gene regulation in carcinogenesis, we explored signals of DNA methylation - a stable epigenetic mark of gene regulatory elements - and designed a computational model to profile loss and gain of regulatory elements (REs) during carcinogenesis. We also utilized sequencing data to analyze the allele frequency of single nucleotide polymorphisms (SNPs) and detected the cancer-associated SNPs, i.e., the SNPs displaying the significant allele frequency difference between cancer and normal samples...
March 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28301251/chrysin-as-an-anti-cancer-agent-exerts-selective-toxicity-by-directly-inhibiting-mitochondrial-complex-ii-and-v-in-cll-b-lymphocytes
#9
Ahmad Salimi, Mehryar Habibi Roudkenar, Enayatollah Seydi, Leila Sadeghi, Alireza Mohseni, Nahal Pirahmadi, Jalal Pourahmad
We investigated the effect of chrysin on isolated normal and chronic lymphocytic leukemia (CLL) B-lymphocytes and their isolated mitochondria. We report that a selective and significant increase in cytotoxicity, intracellular reactive oxygen species, mitochondrial membrane potential collapse, ADP/ATP ratio, caspase 3 activation and finally apoptosis in chrysin-treated CLL B- lymphocytes. Also we determined that chrysin selectively inhibits complex II and ATPases in cancerous mitochondria. In this study we proved that the ability of chrysin to promote apoptosis in CLL B-lymphocytes performed by selectively targeting of mitochondria...
March 16, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28300900/cutaneous-leukemic-infiltration-following-varicella-a-case-of-wolf-s-isotopic-response
#10
Ana Brasileiro, André Lencastre, Alexandre João, Ana Fidalgo
Wolf's isotopic response designates the appearance of two subsequent unrelated dermatoses in the same anatomic location. We report the case of a 51-year-old man with a medical history of chronic lymphocytic leukemia without known extra-hematopoietic involvement. The patient developed a disseminated papulo-vesiculous eruption, diagnosed as varicella. Few days after recovering, an erythematous and violaceous papular dermatosis with histopathological examination compatible with leukemic infiltration appeared on the scars of previous herpetic lesions...
September 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28299881/the-regulation-of-tumor-suppressive-microrna-mir-126-in%C3%A2-chronic-lymphocytic-leukemia
#11
Daphne Guinn, Amy Lehman, Catherine Fabian, Lianbo Yu, Kami Maddocks, Leslie A Andritsos, Jeffrey A Jones, Joseph M Flynn, Samantha M Jaglowski, Jennifer A Woyach, John C Byrd, Amy J Johnson
The introduction of miR profiling of chronic lymphocytic leukemia (CLL) patients with different cytogenetic profiles and responses to therapy has allowed incorporation of important miR-mRNA interactions into the understanding of disease biology. In this study, we performed miR expression analysis using NanoString nCounter to discover differentially regulated miRs after therapy with the Bruton tyrosine kinase inhibitor ibrutinib. Of the differentially regulated miRs in the discovery set, miR-29c and miR-126 were confirmed using real-time PCR to be upregulated in CLL patient cells with ibrutinib therapy...
March 15, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28297623/clinical-implications-of-novel-genomic-discoveries-in-chronic-lymphocytic-leukemia
#12
Gregory Lazarian, Romain Guièze, Catherine J Wu
Chronic lymphocytic leukemia (CLL) is a common B-cell malignancy with a remarkably heterogeneous course, ranging from indolent disease with no need for immediate therapy to rapidly progressive disease associated with therapeutic resistance. The recent US Food and Drug Administration approvals of novel targeted therapies such as inhibitors of B-cell receptor signaling and B-cell lymphoma 2 have opened up new opportunities in the clinical management of patients with CLL and heralded a new era in the clinical treatment of this disease...
March 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28296681/adenovirus-hepatitis-clinicopathologic-analysis-of-12-consecutive-cases-from-a-single-institution
#13
Kurt B Schaberg, Neeraja Kambham, Richard K Sibley, John P T Higgins
Adenoviruses are common pathogens that usually cause self-limited infections. However, in the immunocompromised host they can cause severe infections involving multiple organs including the liver. A search of the pathology database at Stanford University Medical Center (1995 to 2016) identified 12 cases of adenovirus hepatitis including biopsy and autopsy specimens. There were 8 pediatric patients, 7 of which had received orthotropic liver transplants and 1 of which was receiving chemotherapy for lymphoblastic leukemia...
March 14, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28295527/factors-predicting-survival-in-chronic-lymphocytic-leukemia-patients-developing-richter-syndrome-transformation-into-hodgkin-lymphoma
#14
Francesca Romana Mauro, Piero Galieni, Alessandra Tedeschi, Luca Laurenti, Giovanni Del Poeta, Gianluigi Reda, Marina Motta, Alessandro Gozzetti, Roberta Murru, Maria Denise Caputo, Melissa Campanelli, Anna Maria Frustaci, Idanna Innocenti, Sara Raponi, Anna Guarini, Fortunato Morabito, Robin Foà, Massimo Gentile
We hereby report the clinical and biologic features of 33 of 4680 (0.7%) patients with chronic lymphocytic leukemia (CLL), managed at 10 Italian centers, who developed Hodgkin lymphoma (HL), a rare variant of Richter syndrome. The median age at CLL and at HL diagnosis were 61 years (range 41-80) and 70 years (range 46-82), respectively, with a median interval from CLL to the diagnosis of HL of 90 months (range 0-258). In 3 cases, CLL and HL were diagnosed simultaneously. Hl was characterized by advanced stage in 79% of cases, International Prognostic Score (IPS) ≥4 in 50%, extranodal involvement in 39%, B symptoms in 70%...
March 10, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28295171/successful-use-of-bruton-s-kinase-inhibitor-ibrutinib-to-control-paraneoplastic-pemphigus-in-a-patient-with-paraneoplastic-autoimmune-multiorgan-syndrome-and-chronic-lymphocytic-leukaemia
#15
Andrew Lee, Suneet Sandhu, Louise Imlay-Gillespie, Stephen Mulligan, Stephen Shumack
We present the case of a 51-year-old man who developed paraneoplastic pemphigus (PNP) in the context of chronic lymphocytic leukemia (CLL). His CLL was successfully controlled with ibrutinib. Concurrently, there was significant improvement of his PNP, suggesting that ibrutinib may be a very useful addition to the treatment options in this potentially life-threatening autoimmune disorder.
March 13, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28292720/clinical-relevance-of-hypogammaglobulinemia-clinical-and-biologic-variables-on-the-infection-risk-and-outcome-of-patients-with-stage-a-chronic-lymphocytic-leukemia
#16
Francesca R Mauro, Fortunato Morabito, Iolanda D Vincelli, Luigi Petrucci, Melissa Campanelli, Adriano Salaroli, Giuseppina Uccello, Annamaria Petrungaro, Francesca Ronco, Sara Raponi, Mauro Nanni, Antonino Neri, Manlio Ferrarini, Anna R Guarini, Robin Foà, Massimo Gentile
The prognostic effect of hypogammaglobulinemia (HGG), clinical and biologic characteristics on the infection risk and outcome has been retrospectively analyzed in 899 patients with stage A chronic lymphocytic leukemia (CLL). Low levels of IgG were recorded in 19.9% of patients at presentation, low levels of IgM and/or IgA in 10.4% and an additional 20% of patients developed HGG during the course of the disease. Before the start of any treatment, 160 (12.9%) patients experienced at least one grade ≥3 infection requiring a systemic anti-infective treatment and/or hospitalization...
February 27, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28291389/deciphering-ibrutinib-resistance-in-chronic-lymphocytic-leukemia
#17
Georg Lenz
No abstract text is available yet for this article.
March 14, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28288853/establishing-evidence-based-thresholds-and-laboratory-practices-to-reduce-inappropriate-treatment-of-pseudohyperkalemia
#18
Pratistha Ranjitkar, Dina N Greene, Geoffrey S Baird, Andrew N Hoofnagle, Patrick C Mathias
BACKGROUND: Unrecognized pseudohyperkalemia (PHK), defined as an artificial increase in measured potassium concentration, due to thrombocytosis and leukocytosis can lead to inappropriate patient treatment. Understanding the laboratory and patient characteristics that increase risk of PHK is key to preventing diagnostic errors. METHODS: Serum/plasma potassium results collected at 2 laboratories over 4years were selected based on blood cell counts collected within 24h and whole blood potassium concentrations determined within 2h of the serum/plasma sample...
March 10, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28288720/clonal-b-cell-lymphocytosis-of-marginal-zone-origin
#19
REVIEW
Aliki Xochelli, David Oscier, Kostas Stamatopoulos
Monoclonal B cell Lymphocytosis (MBL) is the term used to characterize individuals presenting with lymphocytosis in the absence of lymphadenopathy, organomegaly or any other features suggestive of an active disease. Based on the immunophenotypic findings, MBL cases are sub-categorized into chronic lymphocytic leukemia (CLL)-like, atypical CLL and non-CLL MBL. The latter corresponds to cases with immunophenotypic features suggestive of post germinal center derivation and still represents a diagnostic conundrum...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28286501/antigen-loss-variants-catching-hold-of-escaping-foes
#20
Maulik Vyas, Rolf Müller, Elke Pogge von Strandmann
Since mid-1990s, the field of cancer immunotherapy has seen steady growth and selected immunotherapies are now a routine and preferred therapeutic option of certain malignancies. Both active and passive cancer immunotherapies exploit the fact that tumor cells express specific antigens on the cell surface, thereby mounting an immune response specifically against malignant cells. It is well established that cancer cells typically lose surface antigens following natural or therapy-induced selective pressure and these antigen-loss variants are often the population that causes therapy-resistant relapse...
2017: Frontiers in Immunology
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