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acute lymphoblastic leukemia -L3 type

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https://www.readbyqxmd.com/read/28428987/microarray-profiling-and-co-expression-network-analysis-of-the-lncrnas-and-mrnas-associated-with-acute-leukemia-in-adults
#1
Hui Cheng, Chong Mei Huang, Yang Wang, Xiao Xia Hu, Xiao Qian Xu, Xian Min Song, Gu Sheng Tang, Li Chen, Jian Min Yang
Acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) are common types of acute leukemia in adults and cause low survival rate and poor outcome after 5 years despite high rates of complete remission (CR) with modern chemotherapeutic regimens. To understand the distinct mechanisms in leukemogenesis for ALL and AML and to identify markers for diagnosis and treatment, lncRNA and mRNA expression profiles of AML and ALL patients and healthy controls were generated using microarray analysis. For comparison, the differentially expressed mRNA functions were annotated using gene ontology (GO) and pathway analysis...
April 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28423730/the-sclttaxbcr-abl-transgenic-mouse-model-closely-reflects-the-differential-effects-of-dasatinib-on-normal-and-malignant-hematopoiesis-in-chronic-phase-cml-patients
#2
Claudia Schubert, Nicolas Chatain, Till Braunschweig, Mirle Schemionek, Kristina Feldberg, Melanie Hoffmann, Olli Dufva, Satu Mustjoki, Tim H Brümmendorf, Steffen Koschmieder
The second generation tyrosine kinase inhibitor (TKI) dasatinib is a clinically approved drug for chronic myeloid leukemia (CML) as well as Ph+ acute lymphoblastic leukemia. In addition to its antileukemic effects, dasatinib was shown to impact on normal hematopoiesis and cells of the immune system.Due to the fact that the murine in vivo studies so far have not been performed in a chronic-phase CML model under steady-state conditions, our aim was to study the hematopoietic effects of dasatinib (20 mg/kg p.o...
March 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412288/adult-t-type-lymphoblastic-lymphoma-treatment-advances-and-prognostic-indicators
#3
REVIEW
Stéphane Lepretre, Carlos Graux, Aurore Touzart, Elizabeth Macintyre, Nicolas Boissel
T-cell lymphoblastic lymphoma (T-LBL) is a rare, aggressive neoplasm of precursor T cells that occurs mostly in adolescents and young adults. In this review, we describe the treatment of adult T-LBL with a focus on recent advances using pediatric-inspired acute lymphoblastic leukemia regimens, which have greatly improved outcome. We also discuss the development of prognostic indicators for T-LBL, especially oncogenetic factors, that can identify patients at higher risk of relapse and should help further extend T-LBL patient survival...
April 12, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28408486/targeting-ror1-identifies-new-treatment-strategies-in-hematological-cancers
#4
REVIEW
Hanna Karvonen, Wilhelmiina Niininen, Astrid Murumägi, Daniela Ungureanu
Receptor tyrosine kinase-like orphan receptor 1 (ROR1) is a member of the ROR receptor family consisting of two closely related type I transmembrane proteins ROR1 and ROR2. Owing to mutations in their canonical motifs required for proper kinase activity, RORs are classified as pseudokinases lacking detectable catalytic activity. ROR1 stands out for its selective and high expression in numerous blood and solid malignancies compared with a minimal expression in healthy adult tissues, suggesting high potential for this molecule as a drug target for cancer therapy...
April 15, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28405516/assessment-of-tumor-infiltrating-tcrv%C3%AE-9v%C3%AE-2-%C3%AE-%C3%AE-lymphocyte-abundance-by-deconvolution-of-human-cancers-microarrays
#5
Marie Tosolini, Frédéric Pont, Mary Poupot, François Vergez, Marie-Laure Nicolau-Travers, David Vermijlen, Jean-Emmanuel Sarry, Francesco Dieli, Jean-Jacques Fournié
Most human blood γδ cells are cytolytic TCRVγ9Vδ2(+) lymphocytes with antitumor activity. They are currently investigated in several clinical trials of cancer immunotherapy but so far, their tumor infiltration has not been systematically explored across human cancers. Novel algorithms allowing the deconvolution of bulk tumor transcriptomes to find the relative proportions of infiltrating leucocytes, such as CIBERSORT, should be appropriate for this aim but in practice they fail to accurately recognize γδ T lymphocytes...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28401353/maternal-fetal-loss-history-and-increased-acute-leukemia-subtype-risk-in-subsequent-offspring-a-systematic-review-and-meta-analysis
#6
REVIEW
M A Karalexi, N Dessypris, A Skalkidou, S -I Biniaris-Georgallis, Ε Ι Kalogirou, T P Thomopoulos, E Herlenius, L G Spector, D Loutradis, G P Chrousos, E Th Petridou
PURPOSE: History of fetal loss including miscarriage and stillbirth has been inconsistently associated with childhood (0-14 years) leukemia in subsequent offspring. A quantitative synthesis of the inconclusive literature by leukemia subtype was therefore conducted. METHODS: Eligible studies (N = 32) were identified through the screening of over 3500 publications. Random-effects meta-analyses were conducted on the association of miscarriage/stillbirth history with overall (AL; 18,868 cases/35,685 controls), acute lymphoblastic (ALL; 16,150 cases/38,655 controls), and myeloid (AML; 3042 cases/32,997 controls) leukemia...
April 11, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28396495/clonal-selection-and-asymmetric-distribution-of-human-leukemia-in-murine-xenografts-revealed-by-cellular-barcoding
#7
Mirjam E Belderbos, Taco Koster, Bertien Ausema, Sabrina Jacobs, Sharlaine Sowdagar, Erik Zwart, Eveline de Bont, Gerald de Haan, Leonid V Bystrykh
Genetic and phenotypic heterogeneity of human leukemia is thought to drive leukemia progression through a Darwinian process of selection and evolution of increasingly malignant clones. However, the lack of markers to uniquely identify individual leukemia clones precludes high resolution tracing of their clonal dynamics. Here, we employ cellular barcoding to analyze the clonal behavior of patient-derived leukemia-propagating cells (LPCs) in murine xenografts. Using a leukemic cell line and diagnostic bone marrow cells from six patients with B-progenitor cell acute lymphoblastic leukemia (B-ALL), we demonstrate that patient-derived xenografts were highly polyclonal, consisting of tens to hundreds of LPC clones...
April 10, 2017: Blood
https://www.readbyqxmd.com/read/28395443/-clinical-analysis-of-adult-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-with-p16-gene-deletion
#8
B L He, N Xu, Y L Li, C Y Pan, R Cao, L B Liao, C X Yin, Y Q Lan, Z Y Lu, J X Huang, H S Zhou, Q F Liu, X L Liu
Objective: To investigate the clinical implications of p16 gene deletion in adult Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph(+) ALL) . Methods: Retrospective analysis of clinical, immunophenotypic, cytogenetics, molecular characteristics and prognosis of 80 newly diagnosed Ph(+) ALL patients with p16 deletion. Results: Of 80 adult Ph(+) ALL, the prevalence of p16 gene deletion was 31.3%. p16 gene deletion carriers frequently accompanied with high WBC counts (WBC≥30×10(9)/L) and CD20 expression...
March 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28386358/dnmt3a-haploinsufficiency-cooperates-with-oncogenic-kras-to-promote-an-early-onset-t-cell-acute-lymphoblastic-leukemia
#9
Yuan-I Chang, Guangyao Kong, Erik A Ranheim, Po-Shu Tu, Yi-Shan Yu, Jing Zhang
Mutations in DNA methyltransferase 3A (DNMT3A) are prevalent in various myeloid and lymphoid malignancies. The most common DNMT3A R882 mutations inhibit methyltransferase activity of the remaining wild-type DNMT3A proteins at a heterozygous state due to their dominant-negative activity. Reports and COSMIC database analysis reveal significantly different frequencies of R882 mutations in myeloid versus T-cell malignancies, inspiring us to investigate whether downregulation of DNMT3A regulates malignancies of different lineages in a dose-dependent manner...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28379884/parental-alcohol-consumption-and-risk-of-leukemia-in-the-offspring-a-systematic-review-and-meta-analysis
#10
Maria A Karalexi, Nick Dessypris, Thomas P Thomopoulos, Evangelos Ntouvelis, Maria Kantzanou, Andreas-Antonios Diamantaras, Maria Moschovi, Margarita Baka, Emmanuel Hatzipantelis, Maria Kourti, Sophia Polychronopoulou, Eftichia Stiakaki, Ana-M Mora, Victor Wunsch-Filho, Claire Infante-Rivard, Dimitrios Loutradis, Eleni Th Petridou
Parental alcohol consumption before and during pregnancy has been linked to adverse outcomes in the offspring including leukemogenesis. We, therefore, aimed to systematically assess and quantitatively synthesize published data on the association of paternal consumption during preconception and maternal consumption during pregnancy with leukemia risk in childhood (0-14 years). Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we searched PubMed (until February 2016) and the reference lists of the relevant studies...
April 4, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28378055/ep300-znf384-fusion-gene-product-up-regulates-gata3-gene-expression-and-induces-hematopoietic-stem-cell-gene-expression-signature-in-b-cell-precursor-acute-lymphoblastic-leukemia-cells
#11
Akinori Yaguchi, Takeshi Ishibashi, Kazuki Terada, Hitomi Ueno-Yokohata, Yuya Saito, Junya Fujimura, Toshiaki Shimizu, Kentaro Ohki, Atsushi Manabe, Nobutaka Kiyokawa
ZNF384-related fusion genes are associated with a distinct subgroup of B-cell precursor acute lymphoblastic leukemias in childhood, with a frequency of approximately 3-4%. We previously identified a novel EP300-ZNF384 fusion gene. Patients with the ZNF384-related fusion gene exhibit a hematopoietic stem cell (HSC) gene expression signature and characteristic immunophenotype with negative or low expression of CD10 and aberrant expression of myeloid antigens, such as CD33 and CD13. However, the molecular basis of this pathogenesis remains completely unknown...
April 4, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28369742/simulation-based-hypothesis-testing-of-high-dimensional-means-under-covariance-heterogeneity
#12
Jinyuan Chang, Chao Zheng, Wen-Xin Zhou, Wen Zhou
In this article, we study the problem of testing the mean vectors of high dimensional data in both one-sample and two-sample cases. The proposed testing procedures employ maximum-type statistics and the parametric bootstrap techniques to compute the critical values. Different from the existing tests that heavily rely on the structural conditions on the unknown covariance matrices, the proposed tests allow general covariance structures of the data and therefore enjoy wide scope of applicability in practice. To enhance powers of the tests against sparse alternatives, we further propose two-step procedures with a preliminary feature screening step...
March 31, 2017: Biometrics
https://www.readbyqxmd.com/read/28366708/combination-of-abt-737-and-resveratrol-enhances-dna-damage-and-apoptosis-in-human-t-cell-acute-lymphoblastic-leukemia-molt-4-cells
#13
Małgorzata Opydo-Chanek, Agnieszka Rak, Agnieszka Cierniak, Lidia Mazur
ABT-737 belongs to a new class of anticancer agents named BH3 mimetics. ABT-737 competitively binds to surface hydrophobic grooves of anti-apoptotic proteins of Bcl-2 family, counteracting their protective effect. Resveratrol is a natural polyphenol that has been shown to inhibit the proliferation and/or induce apoptosis in a number of different types of cancer cells. The present study was designed to analyze the combined effects of ABT-737 and resveratrol on human acute lymphoblastic leukemia cells. The in vitro cytotoxic activity of these agents against MOLT-4 leukemia cells was determined using the Coulter electrical impedance method, comet assay, and flow cytometry, light microscopy and western blot techniques...
March 30, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28363872/novel-therapeutic-strategies-to-target-leukemic-cells-that-hijack-compartmentalized-continuous-hematopoietic-stem-cell-niches
#14
REVIEW
Vashendriya V V Hira, Cornelis J F Van Noorden, Hetty E Carraway, Jaroslaw P Maciejewski, Remco J Molenaar
Acute myeloid leukemia and acute lymphoblastic leukemia cells hijack hematopoietic stem cell (HSC) niches in the bone marrow and become leukemic stem cells (LSCs) at the expense of normal HSCs. LSCs are quiescent and resistant to chemotherapy and can cause relapse of the disease. HSCs in niches are needed to generate blood cell precursors that are committed to unilineage differentiation and eventually production of mature blood cells, including red blood cells, megakaryocytes, myeloid cells and lymphocytes...
March 28, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28351936/endoglin-a-novel-target-for-therapeutic-intervention-in-acute-leukemias-revealed-in-xenograft-mouse-models
#15
Keina M C Dourado, June Baik, Vanessa K P Oliveira, Miriam Beltrame, Ami Yamamoto, Charles P Theuer, Camila A V Figueiredo, Michael R Verneris, Rita C R Perlingeiro
Endoglin (CD105), a receptor of the transforming growth factor-β (TGF-β) superfamily, has been reported to identify functional long-term repopulating hematopoietic stem cells, and has been detected in certain sub-types of acute leukemias. Whether this receptor plays a functional role in leukemogenesis remains unknown. We identified endoglin expression on the majority of blasts from patients with acute myeloid leukemia (AML) and acute B-lymphoblastic leukemia (B-ALL). Using a xenograft model, we find that CD105(+) blasts are endowed with superior leukemogenic activity compared to the CD105(-) population...
March 28, 2017: Blood
https://www.readbyqxmd.com/read/28349830/aberrant-aml1-gene-expression-in-the-diagnosis-of-childhood-leukemias-not-characterized-by-aml1-involved-cytogenetic-abnormalities
#16
Maria Adamaki, Spiros Vlahopoulos, George I Lambrou, Athanasios G Papavassiliou, Maria Moschovi
The AML1 ( acute myeloid leukemia 1) gene, a necessary prerequisite of embryonic hematopoiesis and a critical regulator of normal hematopoietic development, is one of the most frequently mutated genes in human leukemia, involving over 50 chromosome translocations and over 20 partner genes. In the few existing studies investigating AML1 gene expression in childhood leukemias, aberrant upregulation seems to specifically associate with AML1 translocations and amplifications. The aim of this study was to determine whether overexpression also extends to other leukemic subtypes than the ones karyotypically involving AML1...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28349299/efficacy-and-prognostic-factors-of-imatinib-plus-callg2008-protocol-in-adult-patients-with-newly-diagnosed-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia
#17
Yinjun Lou, Yafang Ma, Chenyin Li, Sansan Suo, Hongyan Tong, Wenbin Qian, Wenyuan Mai, Haitao Meng, Wenjuan Yu, Liping Mao, Juyin Wei, Weilei Xu, Jie Jin
A CALLG2008 protocol was developed by the Chinese Acute Lymphoblastic Leukemia Cooperative Group for adult acute lymphoblastic leukemia (ALL). We retrospectively analyzed 153 newly diagnosed adult patients with Philadelphia chromosome (Ph)-positive ALL enrolled into imatinib (400 mg/d) plus CALLG2008 regimen between 2009 and 2015. The median age was 40 years (range, 18-68 years), with 81 (52.3%) males. The overall hematologic complete remission (CR) rate was 96.7% after induction. With a median follow-up of 24...
March 27, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28339328/mercaptopurine-ingestion-habits-red-cell-thioguanine-nucleotide-levels-and-relapse-risk-in-children-with-acute-lymphoblastic-leukemia-a-report-from-the-children-s-oncology-group-study-aall03n1
#18
Wendy Landier, Lindsey Hageman, Yanjun Chen, Nancy Kornegay, William E Evans, Bruce C Bostrom, Jacqueline Casillas, David S Dickens, Anne L Angiolillo, Glen Lew, Kelly W Maloney, Leo Mascarenhas, A Kim Ritchey, Amanda M Termuhlen, William L Carroll, Mary V Relling, F Lennie Wong, Smita Bhatia
Purpose Children with acute lymphoblastic leukemia (ALL) are generally instructed to take mercaptopurine (6-MP) in the evening and without food or dairy products. This study examines the association between 6-MP ingestion habits and 6-MP adherence, red cell thioguanine nucleotide (TGN) levels, and risk of relapse in children with TMPT wild-type genotype. Methods Participants included 441 children with ALL receiving oral 6-MP for maintenance. Adherence was monitored over 48,086 patient-days using the Medication Event Monitoring System; nonadherence was defined as adherence rate < 95%...
March 24, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28331319/humanized-cd7-nanobody-based-immunotoxins-exhibit-promising-anti-t-cell-acute-lymphoblastic-leukemia-potential
#19
Yuan Yu, Jialu Li, Xuejun Zhu, Xiaowen Tang, Yangyi Bao, Xiang Sun, Yuhui Huang, Fang Tian, Xiaomei Liu, Lin Yang
BACKGROUND: Nanobodies, named as VHHs (variable domain of heavy chain of HCAb [heavy-chain antibodies]), are derived from heavy-chain-only antibodies that circulate in sera of camelids. Their exceptional physicochemical properties, possibility of humanization, and unique antigen recognition properties make them excellent candidates for targeted delivery of biologically active components, including immunotoxins. In our previous efforts, we have successfully generated the monovalent and bivalent CD7 nanobody-based immunotoxins, which can effectively trigger the apoptosis of CD7-positive malignant cells...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28326824/osteopontin-its-potential-role-in-cancer-of-children-and-young-adults
#20
Gabrielle Karpinsky, Aleksandra Fatyga, Malgorzata Anna Krawczyk, Madeleine Chamera, Natalia Sande, Dagmara Szmyd, Ewa Izycka-Swieszewska, Ewa Bien
OBJECTIVE: Osteopontin (OPN) is aglyco-phosphoprotein, involved in tissue remodeling, inflammation and boneresorption. In various adult neoplasms OPN was shown to correlate with cancer progression, invasiveness and metastasis. AIM: to define the role of OPN in malignancies of children and young adults. MATERIAL AND METHODS: a structured PubMed and Google Scholar literature analysis based on reports published in English between I'1995 and XII'2015...
March 14, 2017: Biomarkers in Medicine
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