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Acute leukemias

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https://www.readbyqxmd.com/read/28231491/effect-of-granulocyte-colony-stimulating-factor-on-outcomes-in-patients-with-non-m3-acute-myelogenous-leukemia-treated-with-anthracycline-based-induction-7-3-regimen-chemotherapies
#1
Ka-Won Kang, Dae Sik Kim, Se Ryeon Lee, Hwa Jung Sung, Seok Jin Kim, Chul Won Choi, Byung Soo Kim, Yong Park
We analyzed the effects of granulocyte colony-stimulating factor (G-CSF) on outcomes in 315 anthracycline-based induction chemotherapy-treated patients with non-M3 acute myelogenous leukemia (AML). Patients were classified as follows: no G-CSF administration during induction (no G-CSF group; 112 patients); administration immediately upon neutropenia onset (absolute neutrophil counts (ANC)<1000/μL), but before febrile neutropenia (preemptive group; 74 patients); and administration following febrile neutropenia development (therapeutic group; 129 patients)...
February 8, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28230720/role-of-vitamin-a-retinoic-acid-in-regulation-of-embryonic-and-adult-hematopoiesis
#2
REVIEW
Ana Cañete, Elena Cano, Ramón Muñoz-Chápuli, Rita Carmona
Vitamin A is an essential micronutrient throughout life. Its physiologically active metabolite retinoic acid (RA), acting through nuclear retinoic acid receptors (RARs), is a potent regulator of patterning during embryonic development, as well as being necessary for adult tissue homeostasis. Vitamin A deficiency during pregnancy increases risk of maternal night blindness and anemia and may be a cause of congenital malformations. Childhood Vitamin A deficiency can cause xerophthalmia, lower resistance to infection and increased risk of mortality...
February 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28230288/a-dual-label-time-resolved-fluorescence-immunoassay-for-the-simultaneous-determination-of-ferritin-and-%C3%AE-2-microglobulin
#3
Zhi Liu, Jing Huang, Rui-Ming Ou, Meng-Dong Yao, Yan-Lin She, Rui Chen, Cheng Li, Li Xu, Aikebaier Abudureyimu, Qing Zhang, Shuang Liu
BACKGROUND: Lymphocytic leukemia is a kind of primary malignant tumor of hematopoietic tissue. The aim was to establish a dual-label time-resolved fluorescence immunoassay (TRFIA) for the simultaneous determination of ferritin (FER) and β2 -microglobulin (β2 -MG) for the early screening and follow-up surveillance of lymphocytic leukemia. METHODS: The sandwich immunoassay was used to detect the concentration of FER, and the competitive immunoassay was used to detect the concentration of β2 -MG in serum...
February 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28229434/preclinical-pharmacokinetics-and-pharmacodynamics-of-pinometostat-epz-5676-a-first-in-class-small-molecule-s-adenosyl-methionine-competitive-inhibitor-of-dot1l
#4
Nigel J Waters
Acute leukemias bearing mixed lineage leukemia (MLL) rearrangements are aggressive diseases characterized by a poor overall prognosis despite multi-agent chemotherapy. Aberrant fusion proteins involving the MLL histone methyltransferase (HMT) lead to recruitment of DOT1L, to a multi-protein complex resulting in aberrant methylation of histone H3 lysine 79 at MLL target genes, and ultimately enhanced expression of critical genes for hematopoietic differentiation, including HOXA9 and MEIS1, and as such defines the established mechanism for leukemogenesis in MLL-rearrangement (MLL-r) leukemias...
February 22, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28229399/neurological-complications-of-the-leukemias-across-the-ages
#5
REVIEW
Stephanie Berg, Sucha Nand
PURPOSE OF REVIEW: Acute and chronic leukemias are heterogeneous diseases and can affect any part of the body upon initial discovery. Understanding the sequela of systemic involvement is key for proper diagnosis and treatment. RECENT FINDINGS: Over the decades, new research has emerged regarding neurological complications of the myeloid or lymphoid leukemias. Central nervous system involvement usually confers a poor prognosis and requires emergent treatment. Standard of care still involves systemic therapy, intrathecal administration of chemotherapeutic agents, and cranial radiation...
February 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28229282/clinical-studies-in-hematologic-microtransplantation
#6
REVIEW
Kevin A David, Dennis Cooper, Roger Strair
The anti-tumor effects of allogeneic hematopoietic stem cell transplantation depend upon engraftment of donor cells followed by a graft-versus-tumor (GVT) effect. However, pre-clinical and clinical studies have established that under certain circumstances, anti-tumor responses can occur despite the absence of high levels of durable donor cell engraftment. Tumor response with little or no donor engraftment has been termed "microtransplantation." It has been hard to define conditions leading to tumor responses without donor cell persistence in humans because the degree of engraftment depends very heavily upon many patient-specific factors, including immune status and degree of prior therapy...
February 22, 2017: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/28229174/characterization-of-the-specific-interaction-between-the-dna-aptamer-sgc8c-and-protein-tyrosine-kinase-7-receptors-at-the-surface-of-t-cells-by-biosensing-afm
#7
Michael Leitner, Alexandra Poturnayova, Constanze Lamprecht, Sabine Weich, Maja Snejdarkova, Ivana Karpisova, Tibor Hianik, Andreas Ebner
We studied the interaction of the specific DNA aptamer sgc8c immobilized at the AFM tip with its corresponding receptor, the protein tyrosine kinase-7 (PTK7) embedded in the membrane of acute lymphoblastic leukemia (ALL) cells (Jurkat T-cells). Performing single molecule force spectroscopy (SMFS) experiments, we showed that the aptamer sgc8c bound with high probability (38.3 ± 7.48%) and high specificity to PTK7, as demonstrated by receptor blocking experiments and through comparison with the binding behavior of a nonspecific aptamer...
February 22, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28229121/intertriginous-maculopapular-mastocytosis-in-a-patient-with-acute-myeloid-leukemia
#8
María Herrero-Moyano, Tania Marusia Capusan, Alejandra Pérez-Plaza, Almudena Godoy, Javier Sánchez-Perez
No abstract text is available yet for this article.
January 2017: JAAD Case Reports
https://www.readbyqxmd.com/read/28229039/clofarabine-desensitization-a-case-report-leukemia-research-reports
#9
Sarah M Hayes, Justin A Wasko, Erica Dahl Warlick
We describe a relapsed AML patient who had two prior severe reactions to clofarabine involving rigors, emesis, tachycardia, hypotension, and acute kidney injury. Given previous prolonged remission achieved with clofarabine and cytarabine therapy years prior, rechallenge was undertaken upon discovery of AML relapse. We designed a desensitization protocol performed with the first dose of clofarabine, leading to successful administration of the entire clofarabine/cytarabine treatment course. From this case we show promise for clofarabine rechallenge after prior hypersensitivity reactions in patients with few treatment options for relapsed AML...
2017: Leukemia Research Reports
https://www.readbyqxmd.com/read/28228392/idh-mutant-tumors-vulnerable-to-parp-inhibition
#10
(no author information available yet)
Several cancers, including glioma and acute myeloid leukemia, carry mutations in IDH1 or IDH2 Researchers have found that these mutations impair homologous recombination, making the tumors sensitive to PARP inhibition. They showed that one such inhibitor, olaparib, killed IDH1/2-mutant cancer cells in culture and slowed tumor growth in mice.
February 22, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28228105/mesenchymal-stromal-cells-as-vehicles-of-tetravalent-bispecific-tandab-cd3-cd19-for-the-treatment-of-b-cell-lymphoma-combined-with-ido-pathway-inhibitor-d-1-methyl-tryptophan
#11
Xiaolong Zhang, Yuanyuan Yang, Leisheng Zhang, Yang Lu, Qing Zhang, Dongmei Fan, Yizhi Zhang, Yanjun Zhang, Zhou Ye, Dongsheng Xiong
BACKGROUND: Although blinatumomab, a bispecific T cell engaging antibody, exhibits high clinical response rates in patients with relapsed or refractory B-precursor acute lymphoblastic leukemia (B-ALL) and B cell non-Hodgkin's lymphoma (B-NHL), it still has some limitations because of its short half-life. Mesenchymal stromal cells (MSCs) represent an attractive approach for delivery of therapeutic agents to cancer sites owing to their tropism towards tumors, but their immunosuppression capabilities, especially induced by indoleamine 2,3-dioxygenase (IDO), should also be taken into consideration...
February 23, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28225869/extremely-elevated-il-18-levels-may-help-distinguish-systemic-onset-juvenile-idiopathic-arthritis-from-other-febrile-diseases
#12
Y Xia, P Cui, Q Li, F Liang, C Li, J Yang
The aim of this research was to explore whether IL-18 can be a serological marker for the diagnosis of systemic-onset juvenile idiopathic arthritis (sJIA). A total of 23 sJIA patients (13 males, median age 8.2), 20 acute lymphoblastic leukemia (ALL) patients, 18 patients with severe infections (SIF), 26 Kawasaki disease (KD) patients, 18 juvenile idiopathic arthritis (JIA) patients, and 25 healthy control patients were selected for this study. Enzyme-linked immunosorbent assays (ELISAs) were used to determine the serum concentrations of the S100A8, S100A9, and IL-6 proteins...
February 16, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28225303/initial-diagnostic-workup-of-acute-leukemia-guideline-from-the-college-of-american-pathologists-and-the-american-society-of-hematology
#13
Daniel A Arber, Michael J Borowitz, Melissa Cessna, Joan Etzell, Kathryn Foucar, Robert P Hasserjian, J Douglas Rizzo, Karl Theil, Sa A Wang, Anthony T Smith, R Bryan Rumble, Nicole E Thomas, James W Vardiman
CONTEXT: -A complete diagnosis of acute leukemia requires knowledge of clinical information combined with morphologic evaluation, immunophenotyping and karyotype analysis, and often, molecular genetic testing. Although many aspects of the workup for acute leukemia are well accepted, few guidelines have addressed the different aspects of the diagnostic evaluation of samples from patients suspected to have acute leukemia. OBJECTIVE: -To develop a guideline for treating physicians and pathologists involved in the diagnostic and prognostic evaluation of new acute leukemia samples, including acute lymphoblastic leukemia, acute myeloid leukemia, and acute leukemias of ambiguous lineage...
February 22, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28225168/correlations-between-epstein-barr-virus-and-acute-leukemia
#14
Hongzai Guan, Hongxia Miao, Na Ma, Wei Lu, Bing Luo
Infection with Epstein-Barr virus (EBV) may be correlated to the onset of acute leukemia (AL). Studies were performed to investigate the relationship between EBV infection and immunophenotyping of acute lymphoblastic leukemia (ALL) and chromosome aberrations. Additionally, the effects of EBV on clinical prognosis were described. Fluorescence quantitative polymerase chain reaction (FQ-PCR) was used to detect EBV-DNA copy numbers from bone marrow in 110 cases of patients with ALL, 75 cases of patients with myeloid leukemia (AML) and 37 cases of hematologically healthy control subjects...
February 22, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28224700/delivery-of-radiation-therapy-in-resource-limited-settings-a-pilot-quality-assessment-study
#15
Alexandra Power-Hays, Paola Friedrich, Gretchen Fernandez, Naly A Cruz, Karen Marcus, Carlos Rodriguez-Galindo, Luisa Collado
Progress has been made in resource-limited countries in treating acute lymphoblastic leukemia, but advances in solid malignancies have been slower. Multidisciplinary care coordination is challenging, assessing adherence to guidelines through quality improvement initiatives is essential. We characterized deviations from guidelines in the delivery of radiation in a middle-income country program as a pilot for evaluating adequacy of local control and as surrogate for integration of multidisciplinary care. One-third of patients for whom it was indicated did not receive radiation...
February 22, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28224619/fl-asparaginase-mediated-downregulation-of-c-myc-promotes-1-25-oh-2-d3-induced-myeloid-differentiation-in-acute-myeloid-leukemia-cells
#16
Ju Han Song, Eunchong Park, Myun Soo Kim, Kyung-Min Cho, Su-Ho Park, Arim Lee, Jiseon Song, Hyeoung-Joon Kim, Jeong-Tae Koh, Tae Sung Kim
Treatment of acute myeloid leukemia (AML) largely depends on chemotherapy, but current regimens have been unsatisfactory for long-term remission. Although differentiation induction therapy utilizing 1,25(OH)2 D3 (VD3) has shown great promise for the improvement of AML treatment efficacy, severe side effects caused by its supraphysiological dose limit its clinical application. Here we investigated the combinatorial effect of l-asparaginase (ASNase)-mediated amino acid depletion and the latent alternation of VD3 activity on the induction of myeloid differentiation...
February 22, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28224273/over-expression-of-mir-196b-5p-is-significantly-associated-with-the-progression-of-myelodysplastic-syndrome
#17
Jing Wen, Ying Huang, Hongying Li, Xupai Zhang, Peng Cheng, Donghong Deng, Zhigang Peng, Jun Luo, Weihua Zhao, Yongrong Lai, Zhenfang Liu
Myelodysplastic syndrome (MDS) is a clonal stem cell disorder characterized by ineffective hematopoiesis with a high risk of transformation to acute myeloid leukemia (AML). miRNAs function as tumor suppressors and oncogenes in various cancers and regulate the differentiation potential of hematopoietic stem and progenitor cells (HSPCs). It has been suggested that miRNAs may play an important role in progression of MDS. We analyzed bone marrow samples collected from MDS patients according to different risk stratification indicated by the International Prognostic Scoring System (IPSS)...
February 21, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28223820/flt3-inhibitors-clinical-potential-in-acute-myeloid-leukemia
#18
REVIEW
Marie-Anne Hospital, Alexa S Green, Thiago T Maciel, Ivan C Moura, Anskar Y Leung, Didier Bouscary, Jerome Tamburini
Acute myeloid leukemia (AML) is an aggressive hematopoietic malignancy that is cured in as few as 15%-40% of cases. Tremendous improvements in AML prognostication arose from a comprehensive analysis of leukemia cell genomes. Among normal karyotype AML cases, mutations in the FLT3 gene are the ones most commonly detected as having a deleterious prognostic impact. FLT3 is a transmembrane tyrosine kinase receptor, and alterations of the FLT3 gene such as internal tandem duplications (FLT3-ITD) deregulate FLT3 downstream signaling pathways in favor of increased cell proliferation and survival...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28223278/impact-of-genetic-alterations-in-stem-cell-transplantation-for-myelodysplasia-and-secondary-acute-myeloid-leukemia
#19
Tetsuichi Yoshizato, Yasuhito Nannya, Yoshiko Atsuta, Yusuke Shiozawa, Yuka Iijima-Yamashita, Kenichi Yoshida, Yuichi Shiraishi, Hiromichi Suzuki, Yasunobu Nagata, Yusuke Sato, Nobuyuki Kakiuchi, Keitaro Matsuo, Makoto Onizuka, Keisuke Kataoka, Kenichi Chiba, Hiroko Tanaka, Hiroo Ueno, Masahiro M Nakagawa, Bartlomiej Przychodzen, Claudia Haferlach, Wolfgang Kern, Kosuke Aoki, Hidehiro Itonaga, Yoshinobu Kanda, Mikkael A Sekeres, Jaroslaw P Maciejewski, Torsten Haferlach, Yasushi Miyazaki, Keizo Horibe, Masashi Sanada, Satoru Miyano, Hideki Makishima, Seishi Ogawa
Genetic alterations, including mutations and copy number alterations, are central to the pathogenesis of myelodysplastic syndromes and related diseases (myelodysplasia), but their roles in allogeneic stem-cell transplantation have not fully been studied in a large cohort of patients. We enrolled 797 patients who had been diagnosed with myelodysplasia at initial presentation and received transplantation via the Japan Marrow Donor Program. Targeted-capture sequencing was performed to identify mutations in 69 genes, together with copy number alterations, whose effects on transplantation outcomes were investigated...
February 21, 2017: Blood
https://www.readbyqxmd.com/read/28222796/new-development-in-car-t-cell-therapy
#20
REVIEW
Zhenguang Wang, Zhiqiang Wu, Yang Liu, Weidong Han
Chimeric antigen receptor (CAR)-engineered T cells (CAR-T cells) have yielded unprecedented efficacy in B cell malignancies, most remarkably in anti-CD19 CAR-T cells for B cell acute lymphoblastic leukemia (B-ALL) with up to a 90% complete remission rate. However, tumor antigen escape has emerged as a main challenge for the long-term disease control of this promising immunotherapy in B cell malignancies. In addition, this success has encountered significant hurdles in translation to solid tumors, and the safety of the on-target/off-tumor recognition of normal tissues is one of the main reasons...
February 21, 2017: Journal of Hematology & Oncology
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