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Childhood leukemia

Qingkai Dai, Xiaojuan Liu, Hui Yang, Siqi Guo, Yuefang Wang, Luyun Peng, Lei Ye, Lan Chen, Chunqi Lai, Qi Chen, Ge Zhang, Yongmei Jiang
Detection of aberrant antigen expression in acute lymphoblastic leukemia (ALL) by flow cytometric is proposed for the quantification of minimal residual disease (MRD). There are few studies that investigate the stability of the antigen expression in children with B lineage ALL at the end of remission induction therapy and determine its prognostic impact. Between 2010 and 2015, 691 bone marrow specimens of childhood ALL were sent at diagnosis for immunophenotypic characterization, and follow-up samples for MRD were analyzed on day 33...
March 2, 2018: Leukemia Research
Lin Xie, Jay Onysko, Howard Morrison
INTRODUCTION: Surveillance of childhood cancer incidence trends can inform etiologic research, policy and programs. This study presents the first population-based report on demographic and geographic variations in incidence trends of detailed pediatric diagnostic groups in Canada. METHODS: The Canadian Cancer Registry data were used to calculate annual age-standardized incidence rates (ASIRs) from 1992 to 2010 among children less than 15 years of age by sex, age and region for the 12 main diagnostic groups and selected subgroups of the International Classification of Childhood Cancer (ICCC), 3rd edition...
March 2018: Health Promotion and Chronic Disease Prevention in Canada
Josef Davidsson, Andreas Puschmann, Ulf Tedgård, David Bryder, Lars Nilsson, Jörg Cammenga
Germline mutations in the SAMD9 and SAMD9L genes, located in tandem on chromosome 7, are associated with a clinical spectrum of disorders including the MIRAGE syndrome, ataxia-pancytopenia syndrome and myelodysplasia and leukemia syndrome with monosomy 7 syndrome. Germline gain-of-function mutations increase SAMD9 or SAMD9L's normal antiproliferative effect. This causes pancytopenia and generally restricted growth and/or specific organ hypoplasia in non-hematopoietic tissues. In blood cells, additional somatic aberrations that reverse the germline mutation's effect, and give rise to the clonal expansion of cells with reduced or no antiproliferative effect of SAMD9 or SAMD9L include complete or partial chromosome 7 loss or loss-of-function mutations in SAMD9 or SAMD9L...
February 25, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
Elva Jiménez-Hernández, Arturo Fajardo-Gutiérrez, Juan Carlos Núñez-Enriquez, Jorge Alfonso Martín-Trejo, Laura Eugenia Espinoza-Hernández, Janet Flores-Lujano, José Arellano-Galindo, Aurora Medina-Sanson, Rogelio Paredes-Aguilera, Laura Elizabeth Merino-Pasaye, Martha Margarita Velázquez-Aviña, José Refugio Torres-Nava, Rosa Martha Espinosa-Elizondo, Raquel Amador-Sánchez, Juan José Dosta-Herrera, Javier Anastacio Mondragón-García, Heriberto Valdés-Guzmán, Laura Mejía-Pérez, Gilberto Espinoza-Anrubio, María Minerva Paz-Bribiesca, Perla Salcedo-Lozada, Rodolfo Ángel Landa-García, Rosario Ramírez-Colorado, Luis Hernández-Mora, María Luisa Pérez-Saldivar, Marlene Santamaría-Ascencio, Anselmo López-Loyola, Arturo Hermilo Godoy-Esquivel, Luis Ramiro García-López, Alison Ireri Anguiano-Ávalos, Karina Mora-Rico, Alejandro Castañeda-Echevarría, Roberto Rodríguez-Jiménez, José Alberto Cibrian-Cruz, Karina Anastacia Solís-Labastida, Rocío Cárdenas-Cardos, Armando Martínez-Avalos, Luz Victoria Flores-Villegas, José Gabriel Peñaloza-González, Ana Itamar González-Ávila, Martha Beatriz Altamirano-García, Norma López-Santiago, Martin Sánchez-Ruiz, Roberto Rivera-Luna, Luis Rodolfo Rodríguez-Villalobos, Francisco Hernández-Pérez, Jaime Ángel Olvera-Durán, Luis Rey García-Cortés, Minerva Mata-Rocha, Omar Alejandro Sepúlveda-Robles, Cesar Raúl González-Bonilla, Vilma Carolina Bekker-Méndez, Silvia Jiménez-Morales, Haydee Rosas-Vargas, Juan Manuel Mejía-Aranguré
In Mexico, due to the high rates of diabetes, overweight, and obesity, there has also been noted an increased newborn weight, which may be contributing to the elevated incidence rate of childhood acute leukemia (AL). We conducted a case-control study in public hospitals of Mexico City aimed to know whether a greater weight at birth is associated with a higher risk of developing leukemia. We included incident cases with acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) diagnosed between 2010 and 2015...
March 13, 2018: Cancer Medicine
Łukasz Sędek, Prisca Theunissen, Elaine Sobral da Costa, Alita van der Sluijs-Gelling, Ester Mejstrikova, Giuseppe Gaipa, Alicja Sonsala, Magdalena Twardoch, Elen Oliveira, Michaela Novakova, Chiara Buracchi, Jacques J M van Dongen, Alberto Orfao, Vincent H J van der Velden, Tomasz Szczepański
BACKGROUND: Optimal discrimination between leukemic blasts and normal B-cell precursors (BCP) is critical for treatment monitoring in BCP acute lymphoblastic leukemia (ALL); thus identification of markers differentially expressed on normal BCP and leukemic blasts is required. METHODS: Multicenter analysis of CD73, CD86 and CD304 expression levels was performed in 282 pediatric BCP-ALL patients vs. normal bone marrow BCP, using normalized median fluorescence intensity (nMFI) values...
March 9, 2018: Journal of Immunological Methods
Dmitrijs Rots, Madara Kreile, Sergejs Nikulshin, Zhanna Kovalova, Linda Gailite
Acute lymphoblastic leukemia (ALL) is the most common childhood malignancy. Modern treatment protocols allow achievement of long-term event-free survival rates in up to 85% of cases, although the treatment response varies among different patient groups. It is hypothesized that treatment response is influenced by the IL15 gene variations, although research results are conflicting. To analyze IL15 gene variations influence treatment response, clinical course and the risk of developing ALL we performed a case-control and family-based study...
March 12, 2018: Pediatric Hematology and Oncology
Amanda E Janitz, Janis E Campbell, Sheryl Magzamen, Anne Pate, Julie A Stoner, Jennifer D Peck
No abstract text is available yet for this article.
March 7, 2018: Environmental Research
Wei Liu, Yin Ting Cheung, Tara M Brinkman, Pia Banerjee, Deokumar Srivastava, Vikki G Nolan, Hongmei Zhang, James G Gurney, Ching-Hon Pui, Leslie L Robison, Melissa M Hudson, Kevin R Krull
BACKGROUND: Prevalence of emotional, behavioral and psychiatric outcomes in child and adolescent survivors of childhood acute lymphoblastic leukemia (ALL) treated on a chemotherapy-only protocol were not well defined. METHODS: Self- and parent-reported emotional and behavioral symptoms were assessed for 161 survivors of childhood ALL (51.0% female; mean [SD] age 12.1[2.6] years; 7.5[1.6] years post-diagnosis). Age- and sex-adjusted scores were calculated for standardized measures, and compared to 90th percentile of norms...
March 9, 2018: Psycho-oncology
Rene Marke, Frank N van Leeuwen, Blanca Scheijen
Transcription factor IKZF1 (IKAROS) acts as a critical regulator of lymphoid differentiation and is frequently deleted or mutated in B-cell precursor acute lymphoblastic leukemia (BCP-ALL). IKZF1 gene defects are associated with inferior treatment outcome in both childhood and adult BCP-ALL and occur in more than 70% of BCR-ABL1 positive and BCR-ABL1-like ALL cases. Over the past few years, much has been learned about the tumor suppressive function of IKZF1 during leukemia development and the molecular pathways that relate to its impact on treatment outcome...
March 8, 2018: Haematologica
Pingnan Xiao, Monika Dolinska, Lakshmi Sandhow, Makoto Kondo, Anne-Sofie Johansson, Thibault Bouderlique, Ying Zhao, Xidan Li, Marios Dimitriou, George Z Rassidakis, Eva Hellström-Lindberg, Nagahiro Minato, Julian Walfridsson, David T Scadden, Mikael Sigvardsson, Hong Qian
Mutations of signal-induced proliferation-associated gene 1 ( SIPA1 ), a RAP1 GTPase-activating protein, were reported in patients with juvenile myelomonocytic leukemia, a childhood myelodysplastic/myeloproliferative neoplasm (MDS/MPN). Sipa1 deficiency in mice leads to the development of age-dependent MPN. However, Sipa1 expression in bone marrow (BM) microenvironment and its effect on the pathogenesis of MPN remain unclear. We here report that Sipa1 is expressed in human and mouse BM stromal cells and downregulated in these cells from patients with MPN or MDS/MPN at diagnosis...
March 13, 2018: Blood Advances
Ida M Ki Moore, Kari M Koerner, Patricia M Gundy, David W Montgomery, Kathleen C Insel, Lynnette L Harris, Olga A Taylor, Marilyn J Hockenberry
Aggressive central nervous system (CNS)-directed treatment for acute lymphoblastic leukemia (ALL), the most prevalent cancer among children and adolescents, prevents metastasis of leukemia cells into the brain. Up to 60% of survivors experience cognitive problems, but knowledge about risk factors for and mechanisms of neurologic injury is lacking. Objectives of the present study were to (1) quantify changes in oxidant defense and apoptosis over the course of ALL therapy and (2) elucidate risk factors for long-term cognitive problems...
January 1, 2018: Biological Research for Nursing
Thibo Billiet, Iris Elens, Charlotte Sleurs, Anne Uyttebroeck, Rudi D'Hooge, Jurgen Lemiere, Sabine Deprez
Background: This study aimed to assess functional and structural brain connectivity in adult childhood leukemia survivors and the link with cognitive functioning and previously identified risk factors such as intrathecal methotrexate dose and age at start of therapy. Methods: Thirty-one nonirradiated adult childhood leukemia survivors and 35 controls underwent cognitive testing and multimodal magnetic resonance imaging (resting state functional MRI, T1-weighted, diffusion-weighted, and myelin water imaging [MWI])...
March 5, 2018: Journal of the National Cancer Institute
Michael Carlberg, Tarmo Koppel, Mikko Ahonen, Lennart Hardell
Objective: Exposure to extremely low-frequency electromagnetic fields (ELF-EMF) was in 2002 classified as a possible human carcinogen, Group 2B, by the International Agency for Research on Cancer at WHO based on an increased risk for childhood leukemia. In case-control studies on brain tumors during 1997-2003 and 2007-2009 we assessed lifetime occupations in addition to exposure to different agents. The INTEROCC ELF-EMF Job-Exposure Matrix was used for associating occupations with ELF-EMF exposure ( μ T) with meningioma...
2018: BioMed Research International
Denise Riedel Lewis, Huann-Sheng Chen, Myles G Cockburn, Xiao-Cheng Wu, Antoinette M Stroup, Douglas N Midthune, Zhaohui Zou, Martin F Krapcho, Daniel G Miller, Eric J Feuer
BACKGROUND: The National Cancer Institute's cancer incidence estimates through 2015 from the Surveillance, Epidemiology, and End Results (SEER) registries' November 2017 submission are released in April 2018. METHODS: Early estimates (February 2017) of cancer incidence rates and trends from the SEER 18 registries for diagnoses in 2000 through 2015 were evaluated with a revised delay-adjustment model, which was used to adjust for the undercount of cases in the early release...
March 6, 2018: Cancer
E Delvin, N Alos, F Rauch, V Marcil, S Morel, M Boisvert, M-A Lecours, C Laverdière, D Sinnett, M Krajinovic, J Dubois, S Drouin, G Lefebvre, M Samoilenko, C Nyalendo, E Cavalier, E Levy
BACKGROUND: The remarkable progress in the treatment of childhood acute lymphoblastic leukemia (cALL) has led to a survival rate reaching 90%. This success story is unfortunately linked to increased risk of impaired skeletal mass accumulation during childhood and adolescence, predisposing the patients to osteoporosis and pathological fractures at adulthood. OBJECTIVE: This study aims at characterizing the vitamin D status and bone health biomarkers in a well-characterized cohort of cALL survivors...
February 21, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
Dorit Verhoeven, Arie Jan Stoppelenburg, Friederike Meyer-Wentrup, Marianne Boes
Primary immunodeficiency disorders (PIDs) convey increased susceptibility to infections and sometimes to malignancies, particularly lymphomas. Such cancer development can be contributed by immune impairments resulting in weakened immunological surveillance against (pre)malignant cells and oncogenic viruses. Molecular defects in PID-patients are therefore being clarified, identifying new targets for innovative immunotherapy. Particularly pediatric cancers are being scrutinized, where over one third of cancer-related deaths is accounted for by leukemia and lymphomas...
February 27, 2018: Clinical Immunology: the Official Journal of the Clinical Immunology Society
Laura S Gilchrist, Lynn R Tanner
PURPOSE: To describe the incidence and short-term recovery of balance control in children and adolescents receiving neurotoxic treatment for noncentral nervous system cancers and to investigate the association of chemotherapy-induced peripheral neuropathy and balance control. METHODS: Sixty-five children and adolescents diagnosed with leukemia, lymphoma, or other solid tumors were tested 3 to 6 months into treatment and 3 and 6 months following treatment using the Bruininks-Oseretsky Balance Subscale and Pediatric Modified Total Neuropathy Scale scores of chemotherapy-induced peripheral neuropathy (CIPN)...
March 1, 2018: Pediatric Physical Therapy
Weijie Li, Linda D Cooley, Keith August
Juvenile myelomonocytic leukemia (JMML) is a rare aggressive childhood leukemia characterized by an excess proliferation of cells of granulocytic and monocytic lineages. The WHO classifies JMML with the myelodysplastic/myeloproliferative neoplasms. Myelodysplasia in JMML is usually minimal to mild. Auer rods have never been reported in JMML. We present a 2-year-old boy with splenomegaly, leukocytosis, thrombocytopenia, anemia, and excess myeloblasts with easily seen Auer rods, and marked dysgranulopoiesis and dyserythropoiesis...
December 5, 2017: Pathology, Research and Practice
Wei Liu, Yin Ting Cheung, Heather M Conklin, Lisa M Jacola, DeoKumar Srivastava, Vikki G Nolan, Hongmei Zhang, James G Gurney, I-Chan Huang, Leslie L Robison, Ching-Hon Pui, Melissa M Hudson, Kevin R Krull
PURPOSE: The purpose of this study was to determine the evolution of neurocognitive problems from therapy completion to long-term follow-up in survivors of childhood acute lymphoblastic leukemia treated with chemotherapy only. METHODS: We evaluated whether attention problems observed at therapy completion evolve into long-term executive dysfunction in 158 survivors treated on a single institution protocol. Treatment data (high-dose intravenous methotrexate exposure [serum concentration] and triple intrathecal chemotherapy injections) were collected...
February 27, 2018: Journal of Cancer Survivorship: Research and Practice
Sumit Gupta, Meenakshi Devidas, Mignon L Loh, Elizabeth A Raetz, Si Chen, Cindy Wang, Patrick Brown, Andrew J Carroll, Nyla A Heerema, Julie M Gastier-Foster, Kimberly P Dunsmore, Eric C Larsen, Kelly W Maloney, Leonard A Mattano, Stuart S Winter, Naomi J Winick, William L Carroll, Stephen P Hunger, Michael J Borowitz, Brent L Wood
Minimal residual disease (MRD) after initial therapy is integral to risk stratification in B-precursor and T-precursor acute lymphoblastic leukemia (B-ALL, T-ALL). Although MRD determines depth of remission, remission remains defined by morphology. We determined the outcomes of children with discordant assessments of remission by morphology vs. flow cytometry using patients age 1-30.99 years enrolled on Children's Oncology Group ALL trials who underwent bone marrow assessment at the end of induction (N = 9350)...
February 23, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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