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Leukemia & Lymphoma

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https://www.readbyqxmd.com/read/28142295/identification-of-a-tumor-suppressor-network-in-t-cell-leukemia
#1
Stefan Nagel, Claudia Pommerenke, Corinna Meyer, Maren Kaufmann, Roderick A F MacLeod, Hans G Drexler
To identify novel cancer-related genes targeted by copy number alterations, we performed genomic profiling of T-cell acute lymphoblastic leukemia (T-ALL) cell lines. In 3/8, we identified a shared deletion at chromosomal position 2p16.3-p21. Within the minimally deleted region, we recognized several candidate tumor suppressor (TS) genes, including FBXO11 and FOXN2. An additional deletion at chromosome 14q23.2-q32.11 included FOXN3, highlighting this class of FOX genes as potential TS. Quantitative expression analyses of FBXO11, FOXN2, and FOXN3 confirmed reduced transcript levels in the identified cell lines...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140726/osteonecrosis-develops-independently-from-radiological-leukemic-infiltration-of-bone-in-adolescents-with-acute-lymphoblastic-leukemia-first-findings-of-the-opal-trial
#2
Kathinka Krull, Marina Kunstreich, Janina Klasen-Sansone, Andreas Kloetgen, Franziska Gruener, Gabriele Escherich, Kirsten Bleckmann, Anja Moericke, Martin Schrappe, Norbert Jorch, Daniel Steinbach, Carl-Friedrich Classen, Andreas Guggemos, Reinhard Kolb, Dirk Klee, Arndt Borkhardt, Michaela Kuhlen
Osteonecrosis (ON) is a debilitating side effect of anti-leukemic treatment. Thus far, the role of leukemic infiltration (LI) of bone is unclear. The first 30 children aged ≥10 years, who were enrolled in the ongoing OPAL trial and had MRI studies at diagnosis and at 6 months, were analyzed. MRI revealed extensive LIs in 24 (80%) patients. The signal abnormalities changed back to a physiological signal in 29 out of 30 children at 6 months. Of the 24 children with LIs at diagnosis, 3 (12.5%) developed ON ≥ II, whereas 4 (66...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140725/complement-dependent-cytotoxicity-induced-by-therapeutic-antibodies-in-b-cell-acute-lymphoblastic-leukemia-is-dictated-by-target-antigen-expression-levels-and-augmented-by-loss-of-membrane-bound-complement-inhibitors
#3
Floris C Loeff, H M Esther van Egmond, Bart A Nijmeijer, J H Frederik Falkenburg, Constantijn J Halkes, Inge Jedema
To optimally utilize therapeutic monoclonal antibodies in the treatment of B-cell acute lymphoblastic leukemia (B-ALL) understanding their mechanisms of action and the factors influencing these mechanisms is required. We show strong correlations between target antigen expression levels and sensitivity to complement-dependent cytotoxicity (CDC) induced by rituximab, ofatumumab, or alemtuzumab in a panel of cell lines derived from primary B-ALL cells and in primary B-ALL samples. Simultaneous loss of expression of membrane-bound complement regulatory proteins (mCRP) CD55 and CD59 due to glycophosphatidylinositol-anchor deficiency, significantly increased sensitivity to CDC...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140724/immune-recovery-predicts-survival-after-t-cell-depleted-allogeneic-hematopoietic-cell-transplantation
#4
Grégory Ehx, Frédéric Baron
No abstract text is available yet for this article.
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140720/pathways-and-mechanisms-of-venetoclax-resistance
#5
Prithviraj Bose, Varsha Gandhi, Marina Konopleva
The approval of venetoclax, a 'BH3-mimetic' antagonist of the BCL-2 anti-apoptotic protein, for chronic lymphocytic leukemia represents a major milestone in translational apoptosis research. Venetoclax has already received 'breakthrough' designation for acute myeloid leukemia, and is being studied in many other tumor types. However, resistance to BCL-2 inhibitor monotherapy may rapidly ensue. Several studies have shown that the other two major anti-apoptotic BCL-2 family proteins, BCL-XL and MCL-1, are the main determinants of resistance to venetoclax...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140719/phase-i-ii-study-of-the-novel-proteasome-inhibitor-delanzomib-cep-18770-for-relapsed-and-refractory-multiple-myeloma
#6
Dan T Vogl, Thomas G Martin, Ravi Vij, Parameswaran Hari, Joseph R Mikhael, David Siegel, Ka Lung Wu, Michel Delforge, Cristina Gasparetto
Delanzomib (CEP-18770), a reversible P2 threonine boronic acid proteasome (β5/β1 subunits) inhibitor that showed promising anti-myeloma effects in preclinical studies, was investigated in a single-agent multicenter phase I/II study in patients with relapsed/refractory myeloma. Sixty-one patients (17 during dose escalation; 44 in the expansion cohort) received delanzomib on days 1, 8, and 15 in 28-d cycles; 47 received the maximum tolerated dose (MTD), 2.1 mg/m(2). Dose-limiting toxicities (DLTs) at 2.4 mg/m(2) were rash and thrombocytopenia...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140714/leukapheresis-reduces-4-week-mortality-in-acute-myeloid-leukemia-patients-with-hyperleukocytosis-a-retrospective-study-from-a-tertiary-center
#7
Xinyu Nan, Qian Qin, Cesar Gentille, Joe Ensor, Christopher Leveque, Sai R Pingali, Alexandria T Phan, Lawrence Rice, Swaminathan Iyer
Hyperleukocytosis in patients with acute myeloid leukemia (AML) can lead to leukostasis, which if left untreated, has a high mortality. While prompt cytoreductive chemotherapy is essential, treatment with leukapheresis is controversial. This study investigated the outcomes of patients with hyperleukocytosis who received leukapheresis. From 5596 encounters of patients with leukemia seen at Houston Methodist Hospital, we identified 26 patients who had newly diagnosed AML, WBC >50,000/μL, and received leukapheresis...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140713/deferasirox-has-strong-anti-leukemia-activity-but-may-antagonize-theanti-leukemia-effect-of-doxorubicin
#8
Yu-Chien Chang, Wen-Jyi Lo, Yu-Ting Huang, Chaio-Lin Lin, Chiu-Che Feng, Hsin-Ting Lin, Hsu-Chen Cheng, Su-Peng Yeh
Deferasirox (DFX), in addition to its iron-chelation property, has marked anti-proliferative effects on cancer cells. However, the activity and mechanism by which DFX inhibits acute myeloid leukemia (AML) cells remain to be elucidated. Furthermore, the anti-leukemia effect of combining DFX with currently recommended agents doxorubicin (DOX) and cytosine arabinoside (Ara-C) has not been studied. In this study, we show that DFX significantly reduces the viability of three AML cell lines, HL60, THP1, and WEHI3 and two primary leukemic cells harvested from AML patients...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140712/the-clinical-characteristics-and-prognostic-significance-of-aid-mir-181b-and-mir-155-expression-in-adult-patients-with-de-novo-b-cell-acute-lymphoblastic-leukemia
#9
Guangquan Zhou, Yang Cao, Weimin Dong, Yan Lin, Qi Wang, Wei Wu, Xiaoying Hua, Yun Ling, Xiaobao Xie, Shaoyan Hu, Jiannong Cen, Weiying Gu
This study aimed to investigate clinical characteristics and prognostic significance of activation-induced cytidine deaminase (AID) gene, miR-181b and miR-155 expression in de novo adult B-cell acute lymphoblastic leukemia (B-ALL) patients. Results showed that AID and miR-155 expression were higher in B-ALL patients than healthy controls, while miR-181b expression was lower in B-ALL patients. In addition, Ph(+) B-ALLs had higher AID expression than Ph(-) B-ALLs, and its high expression was associated with BCR-ABL...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140711/choosing-a-hypomethylating-agent-in-mds-does-gender-matter
#10
Matthieu Duchmann, Raphael Itzykson
No abstract text is available yet for this article.
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140710/another-tyrosine-kinase-inhibitor-resistance-mutation-within-the-bcr-abl-kinase-domain-chasing-our-tails
#11
Jason B Kaplan, Leonidas C Platanias
No abstract text is available yet for this article.
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140709/recent-advances-and-future-directions-in-mantle-cell-lymphoma-research-report-of-the-2016-mantle-cell-lymphoma-consortium-workshop
#12
Brad S Kahl, Martin Dreyling, Leo I Gordon, Leticia Quintanilla-Martinez, Eduardo M Sotomayor
Mantle cell lymphoma (MCL) is an aggressive B-cell non-Hodgkin lymphoma typically associated with the t(11;14) chromosomal translocation, resulting in overexpression of cyclin D1. Although MCL is associated with clinical heterogeneity, outcomes are generally poor and no standard treatment has been established. However, the recent approval of ibrutinib provides a new therapeutic option. Moreover, recent clinical trials have provided new perspectives on the relative efficacy and safety of various approaches for both transplant-eligible and transplant-ineligible patients...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28140708/second-primary-malignancies-in-patients-treated-for-gastric-mucosa-associated-lymphoid-tissue-lymphoma
#13
Aurelien Amiot, Valerie Jooste, Charlotte Gagniere, Michaël Lévy, Christiane Copie-Bergman, Jehan Dupuis, Yann Le Baleur, Karim Belhadj, Iradj Sobhani, Corinne Haioun, Anne-Marie Bouvier, Jean-Charles Delchier
To assess the risk of second primary malignancy (SPM) in patients with gastric mucosa-associated lymphoid tissue (MALT) Lymphoma (GML), we included 175 patients with GML in the present study. The incidence of SPM in the general population, used for reference, was determined from the French network of cancer registries. During the 1442.9 patient-years of follow-up, 29 patients were diagnosed with incident SPM, including five patients diagnosed with gastric cancer (20.1/1000 patient-years). An increased incidence of SPM was observed in patients with GML (standardized incidence ratios [SIR]: 1...
January 31, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28121203/chronic-myeloid-leukemia-with-a-novel-e8a1-bcr-abl1-fusion-rapid-molecular-response-with-nilotinib
#14
Mireille Crampe, Fatima Shakkak, Johanna Kelly, Andrew Hodgson, Stephen E Langabeer
No abstract text is available yet for this article.
January 25, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28114841/corrigendum
#15
(no author information available yet)
No abstract text is available yet for this article.
January 23, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28103725/a-phase-1-study-of-bortezomib-and-romidepsin-in-patients-with-chronic-lymphocytic-leukemia-small-lymphocytic-lymphoma-indolent-b-cell-lymphoma-peripheral-t-cell-lymphoma-or-cutaneous-t-cell-lymphoma
#16
Beata Holkova, Victor Yazbeck, Maciej Kmieciak, Prithviraj Bose, Shuo Ma, Amy Kimball, Mary Beth Tombes, Ellen Shrader, Wen Wan, Caryn Weir-Wiggins, Amanda Singh, Kevin T Hogan, Sarah Conine, Heidi Sankala, John D Roberts, Thomas C Shea, Steven Grant
A phase 1 study was conducted to determine the dose-limiting toxicities and maximum-tolerated dose (MTD) for bortezomib followed by romidepsin on days 1, 8, and 15 in patients with relapsed/refractory CLL/SLL or B- or T-cell lymphoma. Eighteen treated patients were evaluable for response. The MTD was 1.3 mg/m(2) bortezomib and 10 mg/m(2) romidepsin; median treatment duration was 3 cycles at this dose. The dose-limiting toxicities were grade 3 fatigue, vomiting, and chills. Two patients had partial responses, one lasting >2 years, 8 had stable disease, and 8 had progressive disease...
January 19, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28094574/inferring-a-role-for-methylation-of-intergenic-dna-in-the-regulation-of-genes-aberrantly-expressed-in-precursor-b-cell-acute-lymphoblastic-leukemia
#17
Md Almamun, Olha Kholod, Alexei J Stuckel, Benjamin T Levinson, Nathan T Johnson, Gerald L Arthur, J Wade Davis, Kristen H Taylor
A complete understanding of the mechanisms involved in the development of pre-B ALL is lacking. In this study, we integrated DNA methylation data and gene expression data to elucidate the impact of aberrant intergenic DNA methylation on gene expression in pre-B ALL. We found a subset of differentially methylated intergenic loci that were associated with altered gene expression in pre-B ALL patients. Notably, 84% of these regions were also bound by transcription factors (TF) known to play roles in differentiation and B-cell development in a lymphoblastoid cell line...
January 17, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28093007/thalidomide-analog-cc-122-induces-a-refractory-state-in-monocytes-from-patients-with-diffuse-large-b-cell-lymphoma
#18
Carolina Cubillos-Zapata, Raúl Córdoba, Jose Avendaño-Ortiz, Eduardo Lopez-Collazo
No abstract text is available yet for this article.
January 16, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28093006/blood-malignancies-presenting-with-mutations-at-equivalent-residues-in-runx1-2-suggest-a-common-leukemogenic-pathway
#19
Michele Callea, Fabiana Fattori, Enrico Silvio Bertini, Francisco Cammarata-Scalisi, Francesco Callea, Emanuele Bellacchio
No abstract text is available yet for this article.
January 16, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28093004/immunotherapy-with-the-trifunctional-anti-cd20%C3%A2-%C3%A3-%C3%A2-anti-cd3-antibody-fbta05-in-a-patient-with-relapsed-t-8-14-positive-post-transplant-lymphoproliferative-disease
#20
Anna Kieslich, Peter Ruf, Horst Lindhofer, Raynold Buhmann, Angelika Eggert, Patrick Hundsdoerfer
No abstract text is available yet for this article.
January 16, 2017: Leukemia & Lymphoma
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