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acute lymphoblastic leukemia -L3 type

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https://www.readbyqxmd.com/read/27899822/mir-150-exerts-antileukemia-activity-in-vitro-and-in-vivo-through-regulating-genes-in-multiple-pathways
#1
Zhi Hong Fang, Si Li Wang, Jin Tao Zhao, Zhi Juan Lin, Lin Yan Chen, Rui Su, Si Ting Xie, Bing Z Carter, Bing Xu
MicroRNAs, a class of small noncoding RNAs, have been implicated to regulate gene expression in virtually all important biological processes. Although accumulating evidence demonstrates that miR-150, an important regulator in hematopoiesis, is deregulated in various types of hematopoietic malignancies, the precise mechanisms of miR-150 action are largely unknown. In this study, we found that miR-150 is downregulated in samples from patients with acute lymphoblastic leukemia, acute myeloid leukemia, and chronic myeloid leukemia, and normalized after patients achieved complete remission...
September 22, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27885263/targeting-high-dynamin-2-dnm2-expression-by-restoring-ikaros-function-in-acute-lymphoblastic-leukemia
#2
Zheng Ge, Yan Gu, Qi Han, Gang Zhao, Min Li, Jianyong Li, Baoan Chen, Tianyu Sun, Sinisa Dovat, Robert Peter Gale, Chunhua Song
Dynamin-2 (DNM2) is a GTPase essential for intracellular vesicle formation and trafficking, cytokinesis and receptor endocytosis. Mutations in DNM2 are common in early T-cell precursor acute lymphoblastic leukemia. However, DNM2 expression in other types of ALL are not reported. We studied DNM2 mRNA level in adults with B- and T-cell ALL. We found DNM2 is more highly expressed compared with normals in both forms of ALL. High DNM2 expression is associated with some clinical and laboratory features, inferior outcomes and with leukaemia cell proliferation...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27881582/the-expanding-role-of-the-bcl6-oncoprotein-as-a-cancer-therapeutic-target
#3
Mariano G Cardenas, Erin Oswald, Wenbo Yu, Fengtian Xue, Alexander D MacKerell, Ari M Melnick
BCL6 was initially discovered as an oncogene in B-cell lymphomas, where it drives the malignant phenotype by repressing proliferation and DNA damage checkpoints and blocking B-cell terminal differentiation. BCL6 mediates its effects by binding to hundreds of target genes, and then repressing these genes by recruiting several different chromatin modifying corepressor complexes. Structural characterization of BCL6-corepressor complexes suggested that BCL6 might be a druggable target. Accordingly a number of compounds have been designed to bind to BCL6 and block corepressor recruitment...
November 23, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27879553/acute-vision-loss-as-the-only-sign-of-leukemia-relapse
#4
Marta Cerdà-Ibáñez, Patricia Bayo-Calduch, Laura Manfreda-Domínguez, Antonio Duch-Samper
PURPOSE: To report a case of unilateral exudative retinal detachment as the sole presentation of relapsing B-type lymphoblastic leukemia in a 35-year-old man after 3 years of remission. METHODS: Case report. RESULTS: A 35-year-old man in complete remission of high-risk type B acute lymphoblastic leukemia (ALL-B) presented with acute vision loss in his left eye. Exudative retinal detachment was diagnosed at initial evaluation. Hematological and ocular studies were performed...
August 23, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27870570/activating-notch1-mutations-define-a-distinct-subgroup-of-patients-with-adenoid-cystic-carcinoma-who-have-poor-prognosis-propensity-to-bone-and-liver-metastasis-and-potential-responsiveness-to-notch1-inhibitors
#5
Renata Ferrarotto, Yoshitsugu Mitani, Lixia Diao, Irene Guijarro, Jing Wang, Patrick Zweidler-McKay, Diana Bell, William N William, Bonnie S Glisson, Michael J Wick, Ann M Kapoun, Amita Patnaik, Gail Eckhardt, Pamela Munster, Leonardo Faoro, Jakob Dupont, J Jack Lee, Andrew Futreal, Adel K El-Naggar, John V Heymach
Purpose Adenoid cystic carcinomas (ACCs) represent a heterogeneous group of chemotherapy refractory tumors, with a subset demonstrating an aggressive phenotype. We investigated the molecular underpinnings of this phenotype and assessed the Notch1 pathway as a potential therapeutic target. Methods We genotyped 102 ACCs that had available pathologic and clinical data. Notch1 activation was assessed by immunohistochemistry for Notch1 intracellular domain. Luciferase reporter assays were used to confirm Notch1 target gene expression in vitro...
November 21, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27870151/ph-like-acute-lymphoblastic-leukemia-with-a-novel-pax5-kidins220-fusion-transcript
#6
Kenichi Sakamoto, Toshihiko Imamura, Takuyo Kanayama, Mio Yano, Daisuke Asai, Takao Deguchi, Yoshiko Hashii, Akihiko Tanizawa, Yusei Ohshima, Nobutaka Kiyokawa, Keizo Horibe, Atsushi Sato
Although "paired box 5" (PAX5)-related fusion genes are well documented in childhood B-cell precursor acute lymphoblastic leukemia (ALL), these types of fusion with the exception of PAX5-JAK2 are rarely seen in patients with gene expression profiles similar to those of BCR-ABL1 (Philadelphia)-positive ALL (Ph-like ALL). We report a novel fusion of the genes PAX5 and "kinase D-interacting substrate of 220 kDa" (KIDINS220, also known as ARMS) in a Ph-like ALL. As PAX5 is a master regulator of B-lymphocyte differentiation, PAX5 rearrangements induce a differentiation block in B lymphocytes...
November 7, 2016: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/27855281/car-t-therapy-for-leukemia-progress-and-challenges
#7
REVIEW
Xin Wang, Qing Xiao, Zhe Wang, Wen-Li Feng
Despite the rapid development of therapeutic strategies, leukemia remains a type of difficult-to-treat hematopoietic malignancy that necessitates introduction of more effective treatment options to improve life expectancy and quality of patients. Genetic engineering in adoptively transferred T cells to express antigen-specific chimeric antigen receptors (CARs) has proved highly powerful and efficacious in inducing sustained responses in patients with refractory malignancies, as exemplified by the success of CD19-targeting CAR-T treatment in patients with relapsed acute lymphoblastic leukemia...
October 27, 2016: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/27855054/-pcr-detection-of-relevant-translocations-in-pediatric-acute-lymphoblastic-leukemia
#8
Francisco Xavier Guerra-Castillo, María Teresa Ramos-Cervantes, Cecilia Rosel-Pech, Elva Jiménez-Hernández, Vilma Carolina Bekker-Méndez
BACKGROUND: In Mexico, leukemia represents the most common type of cancer in the population under 15 years old with a high incidence rate when compared with developed countries. The etiology of leukemia may be unknown, however different factors are involve such as chromosomal translocations. The aim of this work is to detect the molecular alterations: TEL-AML1, MLL-AF4, BCR-ABL minor and E2A-PBX1 in pediatric patients with acute lymphoblastic leukemia. METHODS: 91 bone marrow samples were collected from pediatric patients with acute lymphoblastic leukemia from january 2012 to march 2013 at the Pediatric Hematology Service, Hospital General "Gaudencio González Garza"...
2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27813440/amino-acid-deprivation-using-enzymes-as-a-targeted-therapy-for-cancer-and-viral-infections
#9
H S Fernandes, C S Silva Teixeira, P A Fernandes, M J Ramos, N M F S A Cerqueira
INTRODUCTION: Amino acid depletion in the blood serum is currently being exploited and explored for therapies in tumors or viral infections that are auxotrophic for a certain amino acid or have a metabolic defect and cannot produce it. The success of these treatments is because normal cells remain unaltered since they are less demanding and/or can synthesize these compounds in sufficient amounts for their needs by other mechanisms. AREAS COVERED: This review is focused on amino acid depriving enzymes and their formulations that have been successfully used in the treatment of several types of cancer and viral infections...
November 4, 2016: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/27800262/ophthalmologic-findings-in-children-with-leukemia-a-single-center-study
#10
Betül Orhan, Barış Malbora, Sezin Akça Bayar, Zekai Avcı, Bülent Alioğlu, Namık Özbek
OBJECTIVES: Ophthalmologic disease in patients with acute leukemia occurs due to primary leukemic infiltration (involvement), or secondary to the disease and its treatment. In recent years the life expectancy of acute leukemia patients has increased with the advent of modern therapies. The present study aimed to determine the incidence of ocular manifestations in children with acute leukemia. MATERIALS AND METHODS: The study included 120 patients diagnosed with acute leukemia at Başkent University Hospital, Pediatric Hematology Department between 1995 and 2010...
April 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/27798872/matrix-metalloproteinase-1-genotype-contributes-to-the-risk-of-non-solid-tumor-in-childhood-leukemia
#11
Jen-Sheng Pei, Pei-Chen Hsu, An-Kuo Chou, Chia-Wen Tsai, Wen-Shin Chang, Chieh-Lun Hsiao, Yuan-Nian Hsu, Shun-Ping Cheng, DA-Tian Bau
AIM: Up-regulation of metalloproteinase (MMPs) proteins have been shown in various types of solid cancers and the genotype of MMP1 has been associated with the risk of solid cancers. However, the contribution of MMP1 genotype to leukemia has never been investigated to our knowledge. Therefore, in this study we aimed to evaluate the contribution of the genotypic variants in the promoter region of MMP1 to childhood acute lymphoblastic leukemia (ALL) risk in Taiwan. MATERIALS AND METHODS: In this case-control study, 266 patients with childhood ALL and 266 non-cancer controls were genotyped by polymerase chain reaction-restriction fragment length polymorphism methodology...
October 2016: Anticancer Research
https://www.readbyqxmd.com/read/27792701/-long-term-destiny-of-adolescents-and-young-adults-with-de-novo-acute-lymphoblastic-leukemia-treated-with-a-pediatric-protocol-type
#12
Manuel Antonio López-Hernández, Martha Alvarado-Ibarra, José Luis Álvarez-Veral, Maricela Ortiz-Zepeda, Martha Lilia Guajardo-Leal, Xochitl Cota-Range
INTRODUCTION: The prognosis, in the long term, of adolescents and young adults with acute de novo lymphoblastic leukemia, treated with a pediatric type protocol. OBJECTIVE: To analyze the efficacy and tolerability of a chemotherapy regimen of pediatric type on patients 15-35 years old with de novo acute lymphoblastic leukemia, Ph(-). METHODS: A retrospective study of patients received from 2001 to 2013, without initial infiltration of the central nervous system...
September 2016: Gaceta Médica de México
https://www.readbyqxmd.com/read/27792139/lack-of-tert-promoter-mutations-in-human-b-cell-non-hodgkin-lymphoma
#13
Gary Lam, Rena R Xian, Yingying Li, Kathleen H Burns, Karen L Beemon
Non-Hodgkin lymphomas (NHL) are a heterogeneous group of immune cell neoplasms that comprise molecularly distinct lymphoma subtypes. Recent work has identified high frequency promoter point mutations in the telomerase reverse transcriptase (TERT) gene of different cancer types, including melanoma, glioma, liver and bladder cancer. TERT promoter mutations appear to correlate with increased TERT expression and telomerase activity in these cancers. In contrast, breast, pancreatic, and prostate cancer rarely demonstrate mutations in this region of the gene...
October 25, 2016: Genes
https://www.readbyqxmd.com/read/27776115/deregulation-of-dux4-and-erg-in-acute-lymphoblastic-leukemia
#14
Jinghui Zhang, Kelly McCastlain, Hiroki Yoshihara, Beisi Xu, Yunchao Chang, Michelle L Churchman, Gang Wu, Yongjin Li, Lei Wei, Ilaria Iacobucci, Yu Liu, Chunxu Qu, Ji Wen, Michael Edmonson, Debbie Payne-Turner, Kerstin B Kaufmann, Shin-Ichiro Takayanagi, Erno Wienholds, Esmé Waanders, Panagiotis Ntziachristos, Sofia Bakogianni, Jingjing Wang, Iannis Aifantis, Kathryn G Roberts, Jing Ma, Guangchun Song, John Easton, Heather L Mulder, Xiang Chen, Scott Newman, Xiaotu Ma, Michael Rusch, Pankaj Gupta, Kristy Boggs, Bhavin Vadodaria, James Dalton, Yanling Liu, Marcus L Valentine, Li Ding, Charles Lu, Robert S Fulton, Lucinda Fulton, Yashodhan Tabib, Kerri Ochoa, Meenakshi Devidas, Deqing Pei, Cheng Cheng, Jun Yang, William E Evans, Mary V Relling, Ching-Hon Pui, Sima Jeha, Richard C Harvey, I-Ming L Chen, Cheryl L Willman, Guido Marcucci, Clara D Bloomfield, Jessica Kohlschmidt, Krzysztof Mrózek, Elisabeth Paietta, Martin S Tallman, Wendy Stock, Matthew C Foster, Janis Racevskis, Jacob M Rowe, Selina Luger, Steven M Kornblau, Sheila A Shurtleff, Susana C Raimondi, Elaine R Mardis, Richard K Wilson, John E Dick, Stephen P Hunger, Mignon L Loh, James R Downing, Charles G Mullighan
Chromosomal rearrangements deregulating hematopoietic transcription factors are common in acute lymphoblastic leukemia (ALL). Here we show that deregulation of the homeobox transcription factor gene DUX4 and the ETS transcription factor gene ERG is a hallmark of a subtype of B-progenitor ALL that comprises up to 7% of B-ALL. DUX4 rearrangement and overexpression was present in all cases and was accompanied by transcriptional deregulation of ERG, expression of a novel ERG isoform, ERGalt, and frequent ERG deletion...
October 24, 2016: Nature Genetics
https://www.readbyqxmd.com/read/27761210/the-relationship-between-risk-factors-and-survival-in-adult-acute-lymphoblastic-leukemia
#15
Abolghasem Allahyari, Seyed-Mehdi Hashemi, Fahimeh Nazemian, Mohammad Karimi, Mohammad-Reza Kazemi, Masoud Sadeghi
BACKGROUND: Acute lymphoblastic leukemia (ALL) is aggressive cancer, especially in adults as only 20-40% is cured with current treatment regimens. OBJECTIVES: The aim of this study is to evaluate prognostic factors and their effects on survival in ALL patients in the Northeast of Iran. METHODS: In a descriptive and retrospective study from 2009 to 2015, 48 ALL patients referred to hematology-oncology clinic. Age, sex, fever, blood group, type of ALL and consumption of amphotericin B, forms of cytogenetic, survival in the patients, WBC, hemoglobin, and platelet were checked in the first referral for every patient...
August 2016: Iranian Journal of Cancer Prevention
https://www.readbyqxmd.com/read/27757113/minimal-residual-disease-detection-and-evolved-igh-clones-analysis-in-acute-b-lymphoblastic-leukemia-using-igh-deep-sequencing
#16
Jinghua Wu, Shan Jia, Changxi Wang, Wei Zhang, Sixi Liu, Xiaojing Zeng, Huirong Mai, Xiuli Yuan, Yuanping Du, Xiaodong Wang, Xueyu Hong, Xuemei Li, Feiqiu Wen, Xun Xu, Jianhua Pan, Changgang Li, Xiao Liu
Acute B lymphoblastic leukemia (B-ALL) is one of the most common types of childhood cancer worldwide and chemotherapy is the main treatment approach. Despite good response rates to chemotherapy regiments, many patients eventually relapse and minimal residual disease (MRD) is the leading risk factor for relapse. The evolution of leukemic clones during disease development and treatment may have clinical significance. In this study, we performed immunoglobulin heavy chain (IGH) repertoire high throughput sequencing (HTS) on the diagnostic and post-treatment samples of 51 pediatric B-ALL patients...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27744645/the-promise-of-chimeric-antigen-receptor-t-cell-therapy
#17
Noelle V Frey, David L Porter
Chimeric antigen receptors (CARs) are engineered molecules that can be introduced into T cells to enable them to target specific tumor antigens. CAR T cells targeting CD19 have shown promise in patients with relapsed and refractory B-cell neoplasms, including those with acute lymphoblastic leukemia, chronic lymphocytic leukemia, and non-Hodgkin lymphomas. Notably, durable responses have been observed in patients who had not undergone consolidative stem cell transplant, a finding that correlates with reports of T-cell persistence and B-cell aplasia in studies of anti-CD19 treatment in vivo...
October 15, 2016: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/27724812/tcr%C3%AE-%C3%AE-depleted-haploidentical-transplantation-results-in-adult-acute-leukemia-patients
#18
Leylagul Kaynar, Koray Demir, Esra Ermiş Turak, Çiğdem Pala Öztürk, Gökmen Zararsız, Zeynep Burçin Gönen, Selma Gökahmetoğlu, Serdar Şıvgın, Bülent Eser, Yavuz Köker, Musa Solmaz, Ali Ünal, Mustafa Çetin
INTRODUCTION: The use of αβ+ T-cell-depleted grafts is a novel approach to prevent graft failure, graft-versus-host disease (GVHD), and non-relapse mortality (NRM) in patients undergoing haploidentical hematopoietic stem cell transplantation. PATIENT AND METHOD: Thirty-four patients with acute leukemia and lacking a match donor were treated with αβ T-cell-depleted allografts from haploidentical family donors. A total of 24 patients had acute myeloid leukemia (AML) and 10 had acute lymphoblastic leukemia...
October 10, 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/27721665/cytopathological-diagnosis-of-an-unusual-cause-of-malignant-hydrocele
#19
Ankur Jain, Alka Khadwal, Gaurav Prakash, Nalini Gupta, Subhash Varma, Pankaj Malhotra
Testicular involvement in a case of acute lymphoblastic leukemia (ALL) is well reported, but occurrence of "isolated" malignant hydrocele is extremely uncommon. We herein report a case of a 22-year-old man who presented to our hematology clinic with fever and easy fatiguability of 2 weeks' duration. Examination revealed pallor, cervical lymphadenopathy, and bilateral scrotal swellings. He was diagnosed as a case of Philadelphia-positive ALL (B-cell type) based on peripheral smear, bone marrow examination, and flow cytometry of the marrow aspirate...
2016: Clinical Medicine Insights. Pathology
https://www.readbyqxmd.com/read/27718310/protection-against-vaccine-preventable-diseases-in-children-treated-for-acute-lymphoblastic-leukemia
#20
Isabel de de la Fuente Garcia, Léna Coïc, Jean-Marie Leclerc, Caroline Laverdière, Céline Rousseau, Philippe Ovetchkine, Bruce Tapiéro
BACKGROUND: The objective of this retrospective study was to assess protection against vaccine preventable diseases (VPDs) in children treated for acute lymphoblastic leukemia (ALL). PROCEDURE: Clinical characteristics and vaccination records were collected. Antibodies against VPDs were measured after completion of chemotherapy and after a booster dose of vaccine. Immunization status of household members was evaluated. RESULTS: Sixty children were included...
October 8, 2016: Pediatric Blood & Cancer
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