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Pediatric Acute Lymphoblastic Leukemia

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https://www.readbyqxmd.com/read/28211293/hfe-gene-mutation-and-iron-overload-in-egyptian-pediatric-acute-lymphoblastic-leukemia-survivors-a-single-center-study
#1
Farida H El-Rashedi, Mahmoud A El-Hawy, Sally M El-Hefnawy, Mona M Mohammed
BACKGROUND: Hereditary hemochromatosis gene (HFE) mutations have a role in iron overload in pediatric acute lymphoblastic leukemia (ALL) survivors. We aimed to evaluate the genotype frequency and allelic distribution of the two HFE gene mutations (C282Y and H63D) in a sample of Egyptian pediatric ALL survivors and to detect the impact of these two mutations on their iron profile. PATIENTS AND METHODS: This study was performed on 35 ALL survivors during their follow-up visits to the Hematology and Oncology Unit, Pediatric Department, Menoufia University Hospitals...
February 17, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28207544/tser-polymorphism-is-not-associated-with-risk-of-pediatric-acute-lymphoblastic-leukemia-a-meta-analysis
#2
Zhaohua Qiao, Dan Lou, Li Ruan
BACKGROUND: Accumulating studies have explored the effect of thymidylate synthase enhancer region (TSER) variation on risk of pediatric acute lymphoblastic leukemia (ALL) with controversial results. Therefore, this quantitative meta-analysis was performed to assess synthetically the association of TSER variation with susceptibility to develop pediatric ALL. METHODS: The PubMed, ScienceDirect, Google Scholar, Wanfang Database, and China National Knowledge Infrastructure were systematically retrieved to obtain the published case-control studies about the relationship between TSER variation and pediatric ALL risk...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28195091/coagulation-profile-during-induction-chemotherapy-in-childhood-acute-lymphoblastic-leukemia
#3
Shivali Sehgal, Sunita Sharma, Jagdish Chandra, Anita Nangia
CONTEXT: Thromboembolism in children with acute lymphoblastic leukemia (ALL) is most commonly reported after the initiation of antileukemic therapy, indicating a possible interaction of disease and therapy. AIMS: To study the effect of induction chemotherapy on coagulation parameters in pediatric ALL patients. SETTINGS AND DESIGN: Thirty-seven newly diagnosed patients of ALL up to 18 years of age were evaluated along with 30 age- and sex-matched controls...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28193268/adipokines-insulin-resistance-and-adiposity-as-a-predictors-of-metabolic-syndrome-in-child-survivors-of-lymphoma-and-acute-lymphoblastic-leukemia-of-a-developing-country
#4
Lourdes Barbosa-Cortés, Mardia López-Alarcón, Juan Manuel Mejía-Aranguré, Miguel Klünder-Klünder, María Del Carmen Rodríguez-Zepeda, Hugo Rivera-Márquez, Alan de la Vega-Martínez, Jorge Martin-Trejo, Juan Shum-Luis, Karina Solis-Labastida, Enrique López-Aguilar, Guadalupe Matute-González, Roberto Bernaldez-Rios
BACKGROUND: There is a growing body of evidence indicating that pediatric survivors of cancer are at a greater risk of developing metabolic syndrome. This study evaluated some probable predictors of metabolic syndrome (MS), such as leptin and adiponectin concentrations, the leptin/adiponectin ratio, insulin resistance, and adiposity, in a sample of child survivors of lymphoma and leukemia in Mexico City. METHODS: Fifty two children (leukemia n = 26, lymphoma n = 26), who were within the first 5 years after cessation of therapy, were considered as eligible to participate in the study...
February 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28187514/aieop-bfm-consensus-guidelines-2016-for-flow-cytometric-immunophenotyping-of-pediatric-acute-lymphoblastic-leukemia
#5
Michael N Dworzak, Barbara Buldini, Giuseppe Gaipa, Richard Ratei, Ondrej Hrusak, Drorit Luria, Eti Rosenthal, Jean-Pierre Bourquin, Mary Sartor, Angela Schumich, Leonid Karawajew, Ester Mejstrikova, Oscar Maglia, Georg Mann, Wolf-Dieter Ludwig, Andrea Biondi, Martin Schrappe, Giuseppe Basso
Immunophenotyping by flow cytometry (FCM) is a worldwide mainstay in leukemia diagnostics. For concordant multicentric application, however, a gap exists between available classification systems, technologic standardization, and clinical needs. The AIEOP-BFM consortium induced an extensive standardization and validation effort between its nine national reference laboratories collaborating in immunophenotyping of pediatric acute lymphoblastic leukemia (ALL). We elaborated common guidelines which take advantage of the possibilities of multi-color FCM: marker panel requirements, immunological blast gating, in-sample controls, tri-partite antigen expression rating (negative vs...
February 10, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28183295/meta-analysis-of-gene-expression-in-relapsed-childhood-b-acute-lymphoblastic-leukemia
#6
Yock-Ping Chow, Hamidah Alias, Rahman Jamal
BACKGROUND: Relapsed pediatric B-acute lymphoblastic leukemia (B-ALL) remains as the leading cause of cancer death among children. Other than stem cell transplantation and intensified chemotherapy, no other improved treatment strategies have been approved clinically. Gene expression profiling represents a powerful approach to identify potential biomarkers and new therapeutic targets for various diseases including leukemias. However, inadequate sample size in many individual experiments has failed to provide adequate study power to yield translatable findings...
February 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28179212/association-between-n363s-and-bcli-polymorphisms-of-the-glucocorticoid-receptor-gene-nr3c1-and-glucocorticoid-side-effects-during-childhood-acute-lymphoblastic-leukemia-treatment
#7
Meriç Kaymak Cihan, Halil Gürhan Karabulut, Nüket Yürür Kutlay, Hatice Ilgın Ruhi, Ajlan Tükün, Lale Olcay
OBJECTIVE: Glucocorticoids (GCs) are the key drugs for the treatment of pediatric acute lymphoblastic leukemia (ALL). Herein, investigation of the relationship between the N363S and BclI polymorphisms of the GC receptor gene (NR3C1) and the side effects of GCs during pediatric ALL therapy was aimed. MATERIALS AND METHODS: N363S and BclI polymorphisms were analyzed in 49 patients with ALL treated between 2000 and 2012. Control group consisted 46 patients with benign disorders...
February 9, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28171800/epigenetic-drug-combination-overcomes-osteoblast-induced-chemoprotection-in-pediatric-acute-lymphoid-leukemia
#8
Anthony Quagliano, Anilkumar Gopalakrishnapillai, Sonali P Barwe
Although there has been much progress in the treatment of acute lymphoblastic leukemia (ALL), decreased sensitivity to chemotherapy remains a significant issue. Recent studies have shown how interactions with the bone marrow microenvironment can protect ALL cells from chemotherapy and allow for the persistence of the disease. Epigenetic drugs have been used for the treatment of ALL, but there are no reports on whether these drugs can overcome bone marrow-induced chemoprotection. Our study investigates the ability of the DNA methyltransferase inhibitor azacitidine and the histone deacetylase inhibitor panobinostat to overcome chemoprotective effects mediated by osteoblasts...
January 27, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28157215/identification-of-a-genetically-defined-ultra-high-risk-group-in-relapsed-pediatric-t-lymphoblastic-leukemia
#9
P Richter-Pechańska, J B Kunz, J Hof, M Zimmermann, T Rausch, O R Bandapalli, E Orlova, G Scapinello, J C Sagi, M Stanulla, M Schrappe, G Cario, R Kirschner-Schwabe, C Eckert, V Benes, J O Korbel, M U Muckenthaler, A E Kulozik
In the search for genes that define critical steps of relapse in pediatric T-cell acute lymphoblastic leukemia (T-ALL) and can serve as prognostic markers, we performed targeted sequencing of 313 leukemia-related genes in 214 patients: 67 samples collected at the time of relapse and 147 at initial diagnosis. As relapse-specific genetic events, we identified activating mutations in NT5C2 (P=0.0001, Fisher's exact test), inactivation of TP53 (P=0.0007, Fisher's exact test) and duplication of chr17:q11.2-24.3 (P=0...
February 3, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28150907/venous-thromboembolism-following-l-asparaginase-treatment-for-lymphoid-malignancies-in-korea
#10
J H Lee, J Lee, H-Y Yhim, D Oh, S-M Bang
BACKGROUND: L-asparaginase (L-asp) associated venous thromboembolism (VTE) is a serious adverse complication associated with acute lymphoblastic leukemia (ALL) and lymphoma treatment. The incidence rate of L-asp related VTE in Asian cancer patients is not well known. METHODS: We performed a population-based study between 2009 and 2013 using claim databases including both diagnostic and medication codes, such as anti-cancer treatment with L-asp, and VTE diagnoses from the starting date until 3 months after cessation of L-asp...
February 2, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28138921/absolute-lymphocyte-count-alc-after-induction-treatment-predicts-survival-of-pediatric-patients-with-acute-lymphoblastic-leukemia
#11
Tamas Farkas, Judit Müller, Daniel J Erdelyi, Monika Csoka, Gabor T Kovacs
Absolute Lymphocyte Count (ALC) has been recently established as a prognostic factor of survival in pediatric Acute Lymphoblastic Leukemia (ALL). A retrospective analysis of 132 patients treated according the BFM - ALLIC 2002 protocol was performed in a single institution. A possible association between ALC values and Overall Survival (OS) or Event-Free Survival (EFS) was evaluated at multiple time points during induction chemotherapy. ALC higher than 350 cells/μL measured on the 33th day of induction was associated with better Overall- and Event-Free Survival in both Kaplan-Meier (OS 88...
January 30, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28126984/vaccination-to-improve-the-persistence-of-cd19car-gene-modified-t-cells-in-relapsed-pediatric-acute-lymphoblastic-leukemia
#12
C Rossig, M Pule, B Altvater, S Saiagh, G Wright, S Ghorashian, L Clifton-Hadley, K Champion, Z Sattar, B Popova, A Hackshaw, P Smith, T Roberts, E Biagi, B Dreno, R Rousseau, S Kailayangiri, M Ahlmann, R Hough, B Kremens, M G Sauer, P Veys, N Goulden, M Cummins, P J Amrolia
Trials with 2nd generation CD19 chimeric antigen receptors (CAR) T-cells report unprecedented responses but associated with risk of Cytokine Release Syndrome (CRS). Instead, we studied use of donor Epstein Barr virus-specific T-cells (EBV CTL) transduced with a 1st generation CD19CAR, relying on the endogenous T-cell receptor for proliferation. We conducted a multi- center phase I/II study of donor CD19CAR transduced EBV CTL in pediatric ALL. Patients were eligible pre-emptively if they developed molecular relapse (>5 × 10-4) post-1st SCT, or prophylactically post-2nd SCT...
January 27, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28123588/y-box-binding-protein-1-contributes-to-il-7-mediated-survival-signaling-in-b-cell-precursor-acute-lymphoblastic-leukemia
#13
Amina Kariminia, Sabine M Ivison, Vivian M Leung, Susanna Sung, Nicole Couto, Jacob Rozmus, Nina Rolf, Aru Narendran, Sandra E Dunn, Gregor S D Reid, Kirk R Schultz
Y-box-binding protein 1 (YB-1) is a regulatory protein that is associated with drug resistance and relapse in solid tumors. As YB-1 mediates some of its activity through growth factor receptor signaling dysregulation, the present study compared the expression of YB-1 and interleukin 7 (IL-7) receptor α (IL-7Rα) in pediatric B-cell precursor (BCP) acute lymphoblastic leukemia (ALL) and normal BCP cells. The expression levels of IL-7Rα and YB-1 were higher in relapsed vs. diagnostic samples of primary BCP ALL; however, co-expression was also observed in a minor BCP cell population in samples from healthy donors...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28123582/ets-related-gene-is-a-novel-prognostic-factor-in-childhood-acute-lymphoblastic-leukemia
#14
Hai-Zhao Zhao, Ming Jia, Ze-Bin Luo, Xiao-Jun Xu, Si-Si Li, Jing-Ying Zhang, Xiao-Ping Guo, Yong-Min Tang
The ETS-related gene (ERG) has been demonstrated to be associated with overall survival in cytogenetically normal acute myeloid leukemia and acute T cell-lymphoblastic leukemia (T-ALL) in adult patients. However, there are no data available regarding the impact of ERG expression on childhood ALL. In the present study, ERG expression levels were analyzed in bone marrow samples from 119 ALL pediatric patients. ALL patients demonstrated higher ERG expression compared with the controls (P<0.0001). In addition, low ERG expression identified a group of patients with higher white blood cell counts (P=0...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28122538/upregulation-of-the-proto-oncogene-bmi-1-predicts-a-poor-prognosis-in-pediatric-acute-lymphoblastic-leukemia
#15
Hong-Xia Peng, Xiao-Dan Liu, Zi-Yan Luo, Xiao-Hong Zhang, Xue-Qun Luo, Xiao Chen, Hua Jiang, Ling Xu
BACKGROUND: Bmi-1, the B cell-specific moloney murine leukemia virus insertion site 1, is a member of the Polycomb-group (PcG) family and acts as an oncogene in various tumors; however, its expression related to the prognosis of pediatric patients with acute lymphoblastic leukemia (ALL) has not been well studied. METHODS: The Bmi-1 expression levels in the bone marrow of 104 pediatric ALL patients and 18 normal control subjects were determined by using qRT-PCR. The association between the Bmi-1 expression and the clinicopathological characteristics of pediatric ALL patients was analyzed, and the correlation between Bmi-1 and the prognosis of pediatric ALL was calculated according to the Kaplan-Meier method...
January 25, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28119366/bioluminescence-imaging-enhances-analysis-of-drug-responses-in-a-patient-derived-xenograft-model-of-pediatric-all
#16
Luke Jones, Jennifer Richmond, Kathryn Evans, Hernan Carol, Duohui Jing, Raushan T Kurmasheva, Catherine A Billups, Peter J Houghton, Malcolm A Smith, Richard B Lock
PURPOSE: Robust preclinical models of pediatric acute lymphoblastic leukemia (ALL) are essential in prioritizing promising therapies for clinical assessment in high-risk patients. Patient-derived xenograft (PDX) models of ALL provide a clinically relevant platform for assessing novel drugs, with efficacy generally assessed by enumerating circulating human lymphoblasts in mouse peripheral blood (PB) as an indicator of disease burden. While allowing indirect measurement of disease burden in real-time, this technique cannot assess treatment effects on internal reservoirs of disease...
January 24, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28115371/a-review-of-the-management-of-adults-with-t-cell-acute-lymphoblastic-leukemia
#17
David I Marks, Clare Rowntree
T-cell acute lymphoblastic leukemia (ALL) is a rare disease in adults with inferior survival outcomes compared to those seen in pediatric patients. Although potentially curable with about 50% survival at 5 years, adult patients with relapsed disease have dismal outcomes with less than 10% of patients surviving long term. This review will discuss the diagnosis and management of adult patients with newly diagnosed T-cell ALL with an emphasis on the immunophenotypic and genetic analyses required to assign prognosis, risk stratify and guide post remission therapy...
January 23, 2017: Blood
https://www.readbyqxmd.com/read/28108116/maternal-exposure-to-ambient-air-pollution-and-risk-of-early-childhood-cancers-a-population-based-study-in-ontario-canada
#18
Éric Lavigne, Marc-André Bélair, Minh T Do, David M Stieb, Perry Hystad, Aaron van Donkelaar, Randall V Martin, Daniel L Crouse, Eric Crighton, Hong Chen, Jeffrey R Brook, Richard T Burnett, Scott Weichenthal, Paul J Villeneuve, Teresa To, Sabit Cakmak, Markey Johnson, Abdool S Yasseen, Kenneth C Johnson, Marianna Ofner, Lin Xie, Mark Walker
BACKGROUND: There are increasing concerns regarding the role of exposure to ambient air pollution during pregnancy in the development of early childhood cancers. OBJECTIVE: This population based study examined whether prenatal and early life (<1year of age) exposures to ambient air pollutants, including nitrogen dioxide (NO2) and particulate matter with aerodynamic diameters ≤2.5μm (PM2.5), were associated with selected common early childhood cancers in Canada...
January 17, 2017: Environment International
https://www.readbyqxmd.com/read/28094567/a-vulnerable-age-for-the-introduction-of-solid-foods-in-pediatric-acute-lymphoblastic-leukemia
#19
Jeremy M Schraw, Michael E Scheurer, Michele R Forman
BACKGROUND: There is little research concerning infant formula or the age at introduction to solid foods and pediatric acute lymphoblastic leukemia (ALL). The purpose of this case-control study was to estimate the association of age at introduction of solids and pediatric ALL. METHODS: 171 ALL cases aged 0-14 years were recruited at Texas Children's Cancer Center and matched on sex, age, and ethnicity to 342 population-based controls. Data were collected on infant feeding and known risk factors for ALL...
January 17, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28090493/toxic-megacolon-and-interstitial-pneumonia-caused-by-cytomegalovirus-infection-in-a-pediatric-patient-with-acute-lymphoblastic-leukemia-receiving-chemotherapy
#20
Hyunseop Kwon, Hyun Hee Lee, Chung Ryul Paik, Yun-Jeong Lim, Jeong A Park
No abstract text is available yet for this article.
December 2016: Blood Research
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