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Leukemia Research

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https://www.readbyqxmd.com/read/29775844/the-division-of-chronic-myelomonocytic-leukemia-cmml-1-into-cmml-0-and-cmml-1-according-to-2016-world-health-organization-who-classification-has-no-impact-in-outcome-in-a-large-series-of-patients-from-the-spanish-group-of-mds
#1
LETTER
Blanca Xicoy, Ana Triguero, Esperanza Such, Olga García, María-José Jiménez, Montserrat Arnán, Teresa Bernal, Marina Diaz-Beya, David Valcárcel, Carme Pedro, Fernando Ramos, María-Luz Amigo, Rosa Collado, Laura Palomo, María-Teresa Ardanaz, María-Teresa Cedena, Javier Grau, Lurdes Zamora, Guillermo Sanz
No abstract text is available yet for this article.
May 9, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29763855/identification-of-new-phosphorylation-sites-of-cd23-in-b-cells-of-patients-with-chronic-lymphocytic-leukemia
#2
Martina Maďarová, Rastislav Mucha, Stanislav Hresko, Zuzana Makarová, Zuzana Gdovinová, Jarmila Szilasiová, Marianna Vitková, Tomáš Guman, Natalia Štecová, Tomas Dobransky
B-cell chronic lymphocytic leukemia (B-CLL) is the most common lymphoproliferative disorder in adults. Patients with B-CLL strongly express the CD23 - C type of lectin (low affinity IgE receptor, Fc epsilon RII), which is linked to B cell activation and proliferation. Phosphorylation in lymphocytes is tightly associated with regulation of protein activities, functional regulation and cell signaling, and may thus affect initiation and/or progression of the disease. Here we report changes in the phosphorylation of CD23 on threonine (pThr314) and two serine residues (pSer254, pSer265) in B lymphocytes of B-CLL patients, using a flow cytometry approach...
May 9, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29787919/optimal-use-of-novel-agents-in-chronic-lymphocytic-leukemia
#3
Mitchell R Smith, Robert F Weiss
Novel agents are changing therapy for patients with CLL, but their optimal use remains unclear. We model the clinical situation in which CLL responds to therapy, but resistant clones, generally carrying del17p, progress and lead to relapse. Sub-clones of varying growth rates and treatment sensitivity affect predicted therapy outcomes. We explore effects of different approaches to starting novel agent in relation to bendamustine-rituximab induction therapy: at initiation of therapy, at the end of chemo-immunotherapy, at molecular relapse, or at clinical detection of relapse...
May 7, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29747074/high-dose-zinc-oral-supplementation-after-stem-cell-transplantation-causes-an-increase-of-trecs-and-cd4-na%C3%A3-ve-lymphocytes-and-prevents-ttv-reactivation
#4
Lorenzo Iovino, Francesco Mazziotta, Giovanni Carulli, Francesca Guerrini, Riccardo Morganti, Valentina Mazzotti, Fabrizio Maggi, Lisa Macera, Enrico Orciuolo, Gabriele Buda, Edoardo Benedetti, Francesco Caracciolo, Sara Galimberti, Mauro Pistello, Mario Petrini
INTRODUCTION: Zinc plays an important role in thymic function and immune homeostasis. We performed a prospective clinical trial using a high-dose zinc oral supplementation to improve the immune reconstitution after hematopoietic stem cell transplant (HSCT). PATIENTS AND METHODS: We enrolled 18 patients undergoing autologous HSCT for multiple myeloma. Nine patients were randomized to receive only a standard antimicrobial prophylaxis; whereas, nine patients received in addition 150 mg/day of zinc from day +5 to day +100 after transplant...
May 2, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29729583/shifting-of-erythroleukemia-to-myelodysplastic-syndrome-according-to-the-revised-who-classification-biologic-and-cytogenetic-features-of-shifted-erythroleukemia
#5
Sohee Ryu, Hee Sue Park, Sung-Min Kim, Kyongok Im, Jung-Ah Kim, Sang Mee Hwang, Sung-Soo Yoon, Dong Soon Lee
The 2016 revision of the World Health Organization (WHO) classification of tumours of haematopoietic and lymphoid tissues was published. According to 2016 WHO criteria, diagnostic criteria of acute erythroid leukemia was revised. We reassessed 34 de novo acute erythroid leukemia (AEL) diagnosed by 2008 WHO criteria, according to 2016 WHO criteria. A total of 623 patients (excluding M3) with acute myeloid leukemia including 34 patients with AEL were enrolled. Among 34 patients diagnosed with AEL, diagnosis was shifted to MDS-EB in 28 patients (28/34, 82...
April 30, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29715621/elevated-mir-20b-5p-expression-in-peripheral-blood-mononuclear-cells-a-novel-independent-molecular-biomarker-of-favorable-prognosis-in-chronic-lymphocytic-leukemia
#6
Sotirios G Papageorgiou, Christos K Kontos, Panagiotis Tsiakanikas, Georgia Stavroulaki, Anthi Bouchla, Diamantina Vasilatou, Efthymia Bazani, Afroditi Lazarakou, Andreas Scorilas, Vasiliki Pappa
MicroRNA-20b-5p (miR-20b-5p) is part of the miR-106a/363 cluster and a member of the cancer-related miR-17 family. miR-20b-5p regulates important transcription factors, including hypoxia-inducible factor 1 (HIF1) and signal transducer and activator of transcription 3 (STAT3). Recently, the dysregulation of miR-20b-5p expression has been observed in many B-cell lymphomas and T-cell leukemias. In this research study, we examined the putative prognostic value of miR-20b-5p in CLL. Therefore, total RNA was isolated from peripheral blood mononuclear cells (PBMCs) collected from 88 CLL patients; next, total RNA was polyadenylated and first-strand cDNA was synthesized, using an oligo-dT-adapter primer...
April 26, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29734070/phenotype-variability-of-patients-with-post-polycythemia-vera-and-post-essential-thrombocythemia-myelofibrosis-is-associated-with-the-time-to-progression-from-polycythemia-vera-and-essential-thrombocythemia
#7
LETTER
Barbara Mora, Toni Giorgino, Paola Guglielmelli, Elisa Rumi, Margherita Maffioli, Alessandro Rambaldi, Marianna Caramella, Rami Komrokji, Jason Gotlib, Jean Jacques Kiladjian, Francisco Cervantes, Timothy Devos, Francesca Palandri, Valerio De Stefano, Marco Ruggeri, Richard T Silver, Giulia Benevolo, Francesco Albano, Chiara Cavalloni, Daniela Barraco, Daniela Pietra, Tiziano Barbui, Giada Rotunno, Alessandro Maria Vannucchi, Francesco Passamonti
No abstract text is available yet for this article.
April 23, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29705536/high-dose-daunorubicin-new-standard-of-care-for-flt3-itd-mutant-aml
#8
EDITORIAL
Eunice S Wang, Kristen O'Dwyer
No abstract text is available yet for this article.
April 23, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29727824/chinese-and-europeans-with-acute-myeloid-leukemia-have-discordant-mutation-topographies
#9
Min Zhang, Jiawei Yin, Qinghua He, Fan Zhang, Hongyu Huang, Biao Wu, Xuedong Wang, Hong Liu, Hongchao Yin, Yan Zeng, Robert Peter Gale, Depei Wu, Bin Yin
Although the topography of mutations in persons of predominately European-descent with acute myeloid leukemia (AML) is well-described this is less so in Asians. We studied AML-related mutations in 289 consecutive Chinese (mostly Han) with newly-diagnosed de novo AML. Full-length coding sequence of NPM1 and CEBPA, IDH1 and IDH2 hotspot mutations and WT1 mutations in exons 7 and 9 were analyzed by PCR as were correlations with clinical and laboratory variables. CEBPA mutations were detected in 20% of subjects (95% confidence interval [CI] 15, 25%), NPM1 mutations in 20% (15, 25%), IDH1 mutations in 4% (1, 6%), IDH2 mutations in 11% (7, 15%) and WT1 mutations in 6% (3, 9%)...
April 22, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29705537/monitoring-of-clonal-evolution-of-double-c-kit-exon-17-mutations-by-droplet-digital-pcr-in-patients-with-core-binding-factor-acute-myeloid-leukemia
#10
Yanhong Tan, Zhuang Liu, Wenjun Wang, Guiyang Zhu, Jianli Guo, Xiuhua Chen, Chaofeng Zheng, Zhifang Xu, Jianmei Chang, Fanggang Ren, Hongwei Wang
C-KIT gene mutations result in the constitutive activation of tyrosine kinase activity, and greatly affect the pathogenesis and prognosis of core-binding factor acute myeloid leukemia (CBF-AML). C-KIT mutations are often found as single point mutations. However, the rate of double mutations has recently increased in AML patients. In this study, we detected six cases (18.8%) harboring double C-KIT exon17 mutations in 75 patients with CBF-AML. The clone composition and dynamic evolution were analyzed by sequencing and droplet digital PCR (ddPCR)...
April 22, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29705535/associations-of-myeloid-hematological-diseases-of-the-elderly-with-osteoporosis-a-longitudinal-analysis-of-routine-health-care-data
#11
Thomas Datzmann, Freya Trautmann, Falko Tesch, Anna Mies, Lorenz C Hofbauer, Uwe Platzbecker, Jochen Schmitt
BACKGROUND: Myelodysplastic Syndromes (MDS) and Acute Myeloid Leukemia (AML) are hematological stem cell diseases mainly of the elderly. Studies indicate a close relationship between bone metabolism and hematopoietic stem cells within the osteo-hematopoietic niche. However, it remains unclear how the disturbed interaction within the osteo-hematopoietic niche affects bone homeostasis in MDS and AML patients. METHODS: We utilized data of a large German statutory health insurance of approximately 2 million persons living in the German federal state of Saxony...
April 21, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29698858/cell-membrane-bound-cd200-signals-both-via-an-extracellular-domain-and-following-nuclear-translocation-of-a-cytoplasmic-fragment
#12
Zhiqi Chen, Andras Kapus, Ismat Khatri, Olha Kos, Fang Zhu, Reginald M Gorczynski
In previous studies we had reported that the immunosuppressive cell membrane bound molecule CD200 is released from the cell following cleavage by matrix metalloproteases, with the released soluble CD200 acting as an immunosuppressant following binding to, and signaling through, its cognate receptor CD200R expressed on target cells. We now show that although the intracellular cytoplasmic tail (CD200C-tail ) of CD200 has no consensus sites for adapter molecules which might signal the CD200+ cell directly, cleavage of the CD200C-tail from the membrane region of CD200 by a consensus γ-secretase, leads to nuclear translocation and DNA binding (identified by chromatin immunoprecipitation followed by sequencing, Chip-sequencing) of the CD200C-tail ...
April 19, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29734071/the-rising-prevalence-of-chronic-myeloid-leukemia-in-france
#13
Marc Delord, Stéphanie Foulon, Jean-Michel Cayuela, Philippe Rousselot, Julia Bonastre
Outcomes in chronic myeloid leukemia (CML) have been dramatically improved since the emergence of imatinib and the subsequent generation of tyrosine kinase inhibitors (TKI) in the early 2000s. Indeed, CML is now associated with near-normal life expectancy for the majority of patients, provided they adhere to lifelong TKI-based treatment. This paradigm, in which CML can be regarded as a chronic disease, has inherent consequences on the prevalence of the disease. Our objective was to study CML prevalence trend in the French population from 1960 to 2060...
April 17, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29660493/effect-of-absolute-monocyte-count-post-transplant-on-the-outcome-of-patients-with-acute-myeloid-leukemia-undergoing-myeloablative-allogeneic-hematopoietic-stem-cell-transplant-with-busulfan-and-cyclophosphamide-conditioning
#14
Liyuan Tang, Na Wang, Chongyun Xing, Qiang Zhuang, Bin Liang, Lan Sun, Yi Chen, Yan Qian, Zhijian Shen, Songfu Jiang, Kang Yu, Jianhua Feng
Peripheral monocytes have recently been evaluated as a prognostic factor in different types of hematological malignancies. This study assessed the prognostic value of absolute monocyte count (AMC) post-transplant on the clinical outcomes of 59 patients with acute myeloid leukemia (AML) who had undergone myeloablative conditioning (MAC) allogeneic hematopoietic stem cell transplant (allo-HSCT) with busulfan and cyclophosphamide (Bu/Cy). Kaplan-Meier analysis showed that patients with a high AMC (≥ 0.57 × 109 /L) on post-transplant day (PTD) 15 had a significantly worse overall survival (OS) compared to patients with a low AMC (< 0...
April 11, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29656215/inter-observer-variance-and-the-need-for-standardization-in-the-morphological-classification-of-myelodysplastic-syndrome
#15
Keiko Sasada, Noriko Yamamoto, Hiroki Masuda, Yoko Tanaka, Ayako Ishihara, Yasushi Takamatsu, Yutaka Yatomi, Waichiro Katsuda, Issei Sato, Hirotaka Matsui
In this era of genome medicine, the sub-classification of myeloid neoplasms, including myelodysplastic syndrome (MDS), is now supported by genetic testing in selected cases. However, as the initial suspicion and primary diagnosis of the disease still largely relies on morphological features and numbers of hematopoietic cells, the establishment of a uniform diagnostic basis, especially for cell morphology, is essential. In this study, we collected nearly 100,000 hematopoietic cell images from 499 peripheral blood smear specimens from patients with MDS and used these to evaluate the standardization of morphological classification by medical technologists...
April 9, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29653431/inhibition-of-nampt-sensitizes-molt4-leukemia-cells-for-etoposide-treatment-through-the-sirt2-p53-pathway
#16
Theresa Grohmann, Melanie Penke, Stefanie Petzold-Quinque, Susanne Schuster, Sandy Richter, Wieland Kiess, Antje Garten
NAMPT (Nicotinamide phosphoribosyltransferase) catalyses the rate-limiting step in the NAD biosynthesis from nicotinamide and thereby regulates the activity of NAD-dependent enzymes. Cancer cells are highly dependent on NAD for energy and DNA repair processes and are assumed to be more susceptible to an inhibition of NAD synthesis than non-transformed cells. We aimed to investigate whether or not inhibition of NAMPT with its specific inhibitor FK866 can sensitize leukemia cells for chemotherapeutic agents. NAMPT protein abundance, enzymatic activity and NAD concentrations were significantly higher in Jurkat and Molt-4 leukemia cell lines compared to normal peripheral blood mononuclear cells...
April 5, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29655153/new-rapid-method-to-detect-bcr-abl-fusion-genes-with-multiplex-rt-qpcr-in-one-tube-at-a-time
#17
Yong-Qing Tong, Zhi-Jun Zhao, Bei Liu, An-Yu Bao, Hong-Yun Zheng, Jian Gu, Ying Xia, Mary McGrath, Sinisa Dovat, Chun-Hua Song, Yan Li
Fast identification of BCR-ABL fusion genes is critical for precise diagnosis, risk stratification and therapy scheme selection in leukemia. More convenient methods are needed for quickly detection of the BCR-ABL fusion genes. Multiplex fluorescent reverse transcription quantitative real-time PCR (Multiplex RT-qPCR) methods are developed for detection of the at least 14 subtypes of BCR-ABL fusion genes in one tube at a time by using patients' bone marrow samples. The new Multiplex RT-qPCR method could quickly detect BCR-ABL fusion genes with sensitivity up to 10-106 copies...
April 4, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29649752/which-donor-is-better-when-a-matched-donor-is-not-available-domestically-comparison-of-outcomes-of-allogeneic-stem-cell-transplantation-with-haploidentical-and-international-donors-in-a-homogenous-ethnic-population
#18
Hyunkyung Park, Yoo Jin Lee, Sang-Jin Shin, Jayoun Lee, Silvia Park, Inho Kim, Joon-Ho Moon, Hyewon Lee, Jun Ho Jang, Sung-Soo Yoon, Youngil Koh
A substantial proportion of patients requiring allogeneic stem cell transplantation (alloSCT) do not have a human leukocyte antigen-matched sibling donor and need an alternative donor. In this multicenter retrospective study, we compared the outcomes of 176 patients with myelodysplastic syndrome and acute leukemia undergoing alloSCT from haploidentical (n = 121) and international (n = 55) donors between 2002 and 2016. For recipients of haploidentical and international donors, the 2-year overall survival rates were 33...
April 4, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29625320/prognostic-factors-for-thrombosis-free-survival-and-overall-survival-in-polycythemia-vera-a-retrospective-analysis-of-623-pts-with-long-follow-up
#19
LETTER
Ambra Di Veroli, Francesco Buccisano, Alessandro Andriani, Marco Montanaro, Roberto Latagliata, Cristina Santoro, Massimo Breccia, Francesca Spirito, Michele Cedrone, Barbara Anaclerico, Sabrina Leonetti Crescenzi, Raffaele Porrini, Marianna De Muro, Giuseppe Avvisati, Agostino Tafuri, Giuseppe Cimino, Antonio Spadea
No abstract text is available yet for this article.
March 31, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29625321/secreted-wnt-antagonists-in-leukemia-a-road-yet-to-be-paved
#20
REVIEW
Melek Pehlivan, Ceyda Çalışkan, Zeynep Yüce, Hakki Ogun Sercan
Wnt signaling has been a topic of research for many years for its diverse and fundamental functions in physiological (such as embryogenesis, organogenesis, proliferation, tissue repair and cellular differentiation) and pathological (carcinogenesis, congenital/genetic diseases, and tissue degeneration) processes. Wnt signaling pathway aberrations are associated with both solid tumors and hematological malignancies. Unregulated Wnt signaling observed in malignancies may be due to a wide spectrum of abnormalities, from mutations in the genes of key players to epigenetic modifications of Wnt antagonists...
March 28, 2018: Leukemia Research
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