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Acute leukemia

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https://www.readbyqxmd.com/read/29793046/validation-of-the-revised-pam-score-in-patients-with-aml-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#1
Jan M Middeke, Frederike Kollinger, Henning Baldauf, Friedrich Stölzel, Martin Wermke, Malte von Bonin, Katja Sockel, Cornelia S Link, Raphael Teipel, Christoph Röllig, Christian Thiede, Uwe Platzbecker, Gerhard Ehninger, Martin Bornhäuser, Johannes Schetelig
PURPOSE: Despite recent advances, allogeneic hematopoietic stem cell transplantation (alloHSCT) continues to be accompanied by a high rate of morbidity and mortality. Several scores have been developed to predict outcome after HSCT. The PAM score has been recently revised, and utilizes information on patient age, donor type, disease risk, cytomegalovirus (CMV) serostatus of patients and donors, and the forced expiratory volume in one second (FEV1). The aim of this study was to analyze the predictive power of the PAM score in an independent, large cohort of acute myeloid leukemia (AML) patients...
May 21, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29792762/genetic-profiling-in-acute-myeloid-leukemia-a-path-to-predicting-treatment-outcome
#2
Giuseppe Visani, Federica Loscocco, Alessandro Isidori, Pier Paolo Piccaluga
Despite substantial progresses in acute myeloid leukemia (AML) diagnosis and treatment, at least half of patient will eventually die for the disease. In the last decades, the use of genetic and genomic approaches allowed the identification of patients with higher risk of recurrence after and/or resistance to CHT. However, though many novel drugs have been proposed and tested, only little clinical improvements have been made concerning the treatment of the so called 'high risk' patients. Areas covered: In this article, the authors, based on their own experience and the most updated literature, review the basic knowledge of AML prognostication and treatment prediction developed throughout genetic and genomic profiling, and focus on the use of gene expression profiling as a promising predictive tool...
May 24, 2018: Expert Review of Hematology
https://www.readbyqxmd.com/read/29792669/self-assembling-glutamate-functionalized-cyclodextrin-molecular-tube-for-specific-enrichment-of-n-linked-glycopeptides
#3
Haijiao Zheng, Xiqian Li, Qiong Jia
Cyclodextrin molecular tube (CDMT), a new comer of cyclodextrin family, possesses large and hydrophilic outer area and stable structure. Its development and applications remain highly desired, especially in the field of separation and enrichment. Herein, we developed a CDMT-based enrichment platform focusing on the specific capture of glycopeptides. To enhance the hydrophilicity of CDMT, it was functionalized with glutamate (glu). The prepared gluCDMT exhibited large hydrophilic surface, high stability, and good acidic/alkalic resistance...
May 24, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29791428/-acute-liver-failure-as-presentation-of-adult-t-cell-leukemia-in-an-htlv-1-patient
#4
Julissa Guevara Miranda, Patricia Guzmán Rojas, Fernando Alonso Mejía Cordero
Acute liver failure is the development of severe hepatic injury with deterioration of liver synthesis function and encephalopathy. Among all the variety of causes, neoplastic infiltration represents less than 0.5%. We present the case of a male patient with a past medical history of HTLV-1 infection, who reports symptoms of acute hepatitis, being diagnosed with Adult T-cell leukemia/lymphoma. Unfortunately, the patient had a rapid deterioration and passed away a few days after admission.
January 2018: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29790971/brain-activity-associated-with-attention-deficits-following-chemotherapy-for-childhood-acute-lymphoblastic-leukemia
#5
Slim Fellah, Yin T Cheung, Matthew A Scoggins, Ping Zou, Noah D Sabin, Ching-Hon Pui, Leslie L Robison, Melissa M Hudson, Robert J Ogg, Kevin R Krull
Background: The impact of contemporary chemotherapy treatment for childhood acute lymphoblastic leukemia on central nervous system activity is not fully appreciated. Methods: Neurocognitive testing and functional magnetic resonance imaging (fMRI) were obtained in 165 survivors five or more years postdiagnosis (average age = 14.4 years, 7.7 years from diagnosis, 51.5% males). Chemotherapy exposure was measured as serum concentration of methotrexate following high-dose intravenous injection...
May 21, 2018: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29790457/comparison-of-different-conditioning-regimens-of-haploidentical-hematopoietic-stem-cell-transplant-in-patients-with-acute-myeloid-leukemia
#6
Yujie Jiang, Xiaosheng Fang, Xiaohui Sui, Xin Liu, Ying Li, Xianghua Wang, Hongzhi Xu, Lingyan Zhang, Xin Wang
OBJECTIVES: We evaluated the safety and efficacy of 2 conditioning regimens (busulfan/fludarabine vs modified busulfan/cyclophosphamide) in patients with acute myeloid leukemia undergoing haploidentical hematopoietic stem cell transplant. MATERAILS AND METHODS: Twenty patients with primary acute myeloid leukemia had been randomized into busulfan/fludarabine and modified busulfan/cyclophosphamide groups. We retrospectively compared hematopoietic engraftment, regimen-related toxicity, graft-versus-host disease, transplant-related mortality, leukemia-free survival, and overall survival between the groups...
May 23, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29790117/regulatory-roles-of-mir-155-and-let-7b-on-the-expression-of-inflammation-related-genes-in-thp-1-cells-effects-of-fatty-acids
#7
J L Marques-Rocha, M Garcia-Lacarte, M Samblas, J Bressan, J A Martínez, F I Milagro
The main aim of this investigation was to study the regulatory roles of let-7b and miR-155-3p on the expression of inflammation-associated genes in monocytes, macrophages, and lipopolysaccharide (LPS)-activated macrophages (AcM). A second goal was to analyze the potential modulatory roles of different fatty acids, including oleic, palmitic, eicosapentaenoic (EPA), and docosahexaenoic (DHA), on the expression of these miRNAs in the three cell types. This hypothesis was tested in human acute monocytic leukemia cells (THP-1), which were differentiated into macrophages with 2-O-tetradecanoylphorbol-13-acetate (TPA) and further activated with LPS for 24 h...
May 22, 2018: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29789639/fludarabine-and-neurotoxicity-in-engineered-t-cell-therapy
#8
Kate L Lowe, Crystal L Mackall, Elliot Norry, Rafael Amado, Bent K Jakobsen, Gwendolyn Binder
Adoptive T-cell therapy, incorporating engineered T cell receptors (TCRs) or chimeric antigen receptors (CARs), target tumor antigens with high affinity and specificity. To increase the potency of adoptively transferred T cells, patients are conditioned with lymphodepleting chemotherapy regimens prior to adoptive T-cell transfer (ACT), and data suggest that fludarabine is an important component of an effective regimen. In a recent clinical trial using CAR-T cells engineered to target the CD19 B-cell antigen to treat acute lymphoblastic leukemia, JCAR-015 (NCT02535364), two patient deaths due to cerebral edema led to trial suspension...
May 7, 2018: Gene Therapy
https://www.readbyqxmd.com/read/29789603/vorinostat-and-quinacrine-have-synergistic-effects-in-t-cell-acute-lymphoblastic-leukemia-through-reactive-oxygen-species-increase-and-mitophagy-inhibition
#9
Bo Jing, Jin Jin, Rufang Xiang, Meng Liu, Li Yang, Yin Tong, Xinhua Xiao, Hu Lei, Wei Liu, Hanzhang Xu, Jiong Deng, Li Zhou, Yingli Wu
Despite recent progress in the treatment, the outcome of adult acute T-cell lymphoblastic leukemia (T-ALL) is poor. Development of novel approach to combat this disease is urgently required. Vorinostat, a pan-histone deacetylase (HDAC) inhibitor, exerts promising anticancer activity in a variety of solid and hematologic malignancies. However, the efficacy of vorinostat monotherapy is unsatisfactory. Here, we show that quinacrine (QC), an anti-malaria drug with potent autophagy inhibitory activity, could synergistically enhance vorinostat-induced cell death at a non-toxic concentration...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29789356/risk-adapted-treatment-of-acute-promyelocytic-leukemia-results-from-international-consortium-for-childhood-apl
#10
Anna Maria Testi, Andrea Pession, Daniela Diverio, David Grimwade, Brenda Gibson, Amilcar Cardoso de Azevedo, Lorena Moran, Guy Leverger, Sarah Elitzur, Henrik Hasle, Jutte van der Werff Ten Bosch, Owen Smith, Marisa De Rosa, Alfonso Piciocchi, Francesco Lo Coco, Robin Foà, Franco Locatelli, Gertjan J L Kaspers
Pediatric acute promyelocytic leukemia (APL), a rare childhood neoplasm, can be cured with all-trans retinoic acid (ATRA) and anthracycline. However, most published trials to date have employed high cumulative doses of anthracyclines. Here, we report the outcome of patients with newly diagnosed APL enrolled into the International Consortium for Childhood APL (ICC-APL-01) trial, which reduced anthracycline exposure but extended that of ATRA. The study recruited 258 children/adolescents with molecularly/cytogenetically-proven APL...
May 22, 2018: Blood
https://www.readbyqxmd.com/read/29789325/genomic-epidemiologic-evidence-that-estrogens-promote-breast-cancer-development
#11
Fritz F Parl, Philip S Crooke, W Dale Plummer, William D Dupont
BACKGROUND: Estrogens are a prime risk factor for breast cancer yet their causal relation to tumor formation remains uncertain. A recent study of 560 breast cancers identified 82 genes with 916 point mutations as drivers in the genesis of this malignancy. Since estrogens play a major role in breast cancer development and are also known to regulate the expression of numerous genes, we hypothesize that the 82 driver genes are likely to be influenced by estrogens, such as 17ß-estradiol (E2), and the estrogen receptor, ESR1 (ERα)...
May 22, 2018: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29789314/inhibition-of-atr-acutely-sensitizes-acute-myeloid-leukemia-cells-to-nucleoside-analogs-that-target-ribonucleotide-reductase
#12
Sarah E Fordham, Helen J Blair, Claire J Elstob, Ruth Plummer, Yvette Drew, Nicola J Curtin, Olaf Heidenreich, Deepali Pal, David Jamieson, Catherine Park, John Pollard, Scott Fields, Paul Milne, Graham H Jackson, Helen J Marr, Tobias Menne, Gail L Jones, James M Allan
The ataxia telangiectasia and Rad3-related (ATR) protein kinase promotes cancer cell survival by signaling stalled replication forks generated by replication stress, a common feature of many cancers including acute myeloid leukemia (AML). Here we show that the antileukemic activity of the chemotherapeutic nucleoside analogs hydroxyurea and gemcitabine was significantly potentiated by ATR inhibition via a mechanism involving ribonucleotide reductase (RNR) abrogation and inhibition of replication fork progression...
May 22, 2018: Blood Advances
https://www.readbyqxmd.com/read/29787755/vibsanin-a-sensitizes-human-acute-myeloid-leukemia-cells-to-tyrosine-kinase-inhibitor-induced-myeloid-differentiation-via-activation-of-pkc-and-upregulation-of-lyn
#13
Xing Shen, Shuang Xing, Lu Zhang, Fangmin Wang, Hongling Ou, Yajun Shan, He Xiao, Guolin Xiong, Xinru Wang, Qinshi Zhao, Yuwen Cong, Zuyin Yu
Differentiation therapies have been proposed to overcome the impaired cell differentiation in acute myeloid leukemia (AML). However, thus far the all-trans retinoic acid-based differentiation therapy has been the only successful modality in treating acute promyelocytic leukemia. Here, we showed that vibsanin A, a novel protein kinase C (PKC) activator, sensitized AML cells to tyrosine kinase inhibitor (TKI)-induced differentiation. Vibsanin A augmented the ability of TKIs to induce growth inhibition and G1 cell cycle arrest of AML cells...
May 19, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29787597/asymmetric-and-symmetric-dimethylarginines-and-mortality-in-patients-with-hematological-malignancies-a-prospective-study
#14
Angelika Chachaj, Jerzy Wiśniewski, Justyna Rybka, Aleksandra Butrym, Monika Biedroń, Małgorzata Krzystek-Korpacka, Mariusz Grzegorz Fleszar, Maciej Karczewski, Tomasz Wróbel, Grzegorz Mazur, Andrzej Gamian, Andrzej Szuba
The study was designed to determine the associations of asymmetric (ADMA) and symmetric (SDMA) dimethylarginines plasma concentrations with all-cause mortality in patients with hematological malignancies. 33 patients with acute myeloid leukemia (AML), 31 patients with non-Hodgkin's lymphoma (nHL), 32 patients with chronic lymphocytic leukemia (CLL) and 48 patients without malignancy were enrolled into the study. Each patient was followed until death or for at least 14.5 months (range: 14.5-53). Median ADMA and SDMA were significantly elevated in AML, nHL and CLL compared to controls (ADMA: 1...
2018: PloS One
https://www.readbyqxmd.com/read/29787442/epidemiology-of-late-health-effects-in-ukrainian-chornobyl-cleanup-workers
#15
Dimitry Bazyka, Anatoly Prysyazhnyuk, Natalya Gudzenko, Iryna Dyagil, David Belyi, Vadim Chumak, Volodymyr Buzunov
This article summarizes the results of 30 y of follow-up of cancer and noncancer effects in Ukrainian cleanup workers after the Chornobyl accident. The number of power plant employees and first responders with acute radiation syndrome under follow-up by the National Research Center for Radiation Medicine decreased from 179 in 1986-1991 to 105 in 2011-2015. Cancers and leukemia (19) and cardiovascular diseases (21) were the main causes of deaths among acute radiation syndrome survivors (54) during the postaccident period...
July 2018: Health Physics
https://www.readbyqxmd.com/read/29787320/gemtuzumab-ozogamicin-for-the-treatment-of-acute-myeloid-leukemia
#16
Jeffrey Baron, Eunice S Wang
Gemtuzumab ozogamicin (GO) is an antibody-drug conjugate consisting of a monoclonal antibody targeting CD33 linked to a cytotoxic derivative of calicheamicin. Despite the known clinical efficacy in relapsed/refractory acute myeloid leukemia (AML), GO was withdrawn from the market in 2010 due to increased early deaths seen in newly diagnosed AML patients receiving GO + intensive chemotherapy. In 2017, new data on the clinical efficacy and safety of GO administered on a fractionated dosing schedule led to re-approval for newly diagnosed and relapsed/refractory AML...
May 22, 2018: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/29786884/bone-morbidity-and-recovery-in-children-with-acute-lymphoblastic-leukemia-results-of-a-six-year-prospective-cohort-study
#17
Leanne M Ward, Jinhui Ma, Bianca Lang, Josephine Ho, Nathalie Alos, Mary Ann Matzinger, Nazih Shenouda, Brian Lentle, Jacob L Jaremko, Beverly Wilson, David Stephure, Robert Stein, Anne Marie Sbrocchi, Celia Rodd, Victor Lewis, Sara Israels, Ronald M Grant, Conrad V Fernandez, David B Dix, Elizabeth A Cummings, Robert Couch, Elizabeth Cairney, Ronald Barr, Sharon Abish, Stephanie A Atkinson, John Hay, Frank Rauch, David Moher, Kerry Siminoski, Jacqueline Halton
Osteoporotic fractures are a significant cause of morbidity in acute lymphoblastic leukemia (ALL). Our objective was to determine the incidence and predictors of fractures and recovery from osteoporosis in pediatric ALL over 6 years following glucocorticoid initiation. Vertebral fractures (VF) and vertebral body reshaping were assessed on annual spine radiographs, low-trauma non-VF were recorded at regular intervals and spine bone mineral density (BMD) was captured every 6 months for 4 years and then annually...
May 22, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29786869/rare-labial-ulcer-related-to-the-use-of-all-trans-retinoic-acid-in-a-patient-with-acute-promyelocytic-leukemia
#18
M P Buligon, J C Mielke, K L Ferrazzo, J Chiesa
Acute promyelocytic leukemia (APL) is a subtype of acute myeloid leukemia (AML). All-trans retinoic acid (ATRA) is the first-choice therapy for the treatment of this disease, but has been associated with side effects, the most serious of which is retinoic acid syndrome (RAS). RAS is characterized by unexplained fever, dyspnea, pulmonary infiltrate, leukocytosis and nephropathy. Genital ulcers have been described in some cases, but only two cases of oral ulcers related to this syndrome have been described in the literature...
May 22, 2018: Special Care in Dentistry
https://www.readbyqxmd.com/read/29786757/copy-number-abnormality-of-acute-lymphoblastic-leukemia-cell-lines-based-on-their-genetic-subtypes
#19
Chihiro Tomoyasu, Toshihiko Imamura, Toshihiro Tomii, Mio Yano, Daisuke Asai, Hiroaki Goto, Akira Shimada, Masashi Sanada, Shotaro Iwamoto, Junko Takita, Masayoshi Minegishi, Takeshi Inukai, Kanji Sugita, Hajime Hosoi
In this study, we performed genetic analysis of 83 B cell precursor acute lymphoblastic leukemia (B-ALL) cell lines. First, we performed multiplex ligation-dependent probe amplification analysis to identify copy number abnormalities (CNAs) in eight genes associated with B-ALL according to genetic subtype. In Ph+ B-ALL cell lines, the frequencies of IKZF1, CDKN2A/2B, BTG1, and PAX5 deletion were significantly higher than those in Ph- B-ALL cell lines. The frequency of CDKN2A/2B deletion in KMT2A rearranged cell lines was significantly lower than that in non-KMT2A rearranged cell lines...
May 21, 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29786546/flt3-itd-compared-with-dnmt3a-r882-mutation-is-a-more-powerful-independent-inferior-prognostic-factor-in-adult-aml-patients-after-allogeneic-hematopoietic-stem-cell-transplantation-a-retrospective-cohort-study
#20
Majid Teremmahi Ardestani, Ahmad Kazemi, Bahram Chahardouli, Saeed Mohammadi, Mohsen Nikbakht, Shahrbano Rostami, Mahdi Jalili, Mohammad Vaezi, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
OBJECTIVE: To identify DNMT3A exon 23 mutations and their prognostic impact in the presence of FLT3-ITD and NPM1 mutations in acute myeloid leukemia (AML) patients treated with Allo-HSCT. MATERIALS AND METHODS: This study analyzed128 adult AML patients referred to the Hematology-Oncology & Stem Cell Research Center of Shariati hospital. FLT3-ITD and NPM1 mutations were detected using fragment analysis. For DNMT3A exon 23 mutation analysis, we used Sanger sequencing...
May 22, 2018: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
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