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Myeloblastic leukemia

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https://www.readbyqxmd.com/read/28301528/genome-wide-mapping-of-histone-h3k9me2-in-acute-myeloid-leukemia-reveals-large-chromosomal-domains-associated-with-massive-gene-silencing-and-sites-of-genome-instability
#1
Anna C Salzberg, Abigail Harris-Becker, Evgenya Y Popova, Nikki Keasey, Thomas P Loughran, David F Claxton, Sergei A Grigoryev
A facultative heterochromatin mark, histone H3 lysine 9 dimethylation (H3K9me2), which is mediated by histone methyltransferases G9a/GLP (EHMT2/1), undergoes dramatic rearrangements during myeloid cell differentiation as observed by chromatin imaging. To determine whether these structural transitions also involve genomic repositioning of H3K9me2, we used ChIP-sequencing to map genome-wide topography of H3K9me2 in normal human granulocytes, normal CD34+ hematopoietic progenitors, primary myeloblasts from acute myeloid leukemia (AML) patients, and a model leukemia cell line K562...
2017: PloS One
https://www.readbyqxmd.com/read/28291132/subcutaneous-histiocytoid-sweet-syndrome-in-a-patient-with-relapsed-acute-myeloblastic-leukemia
#2
Jennifer Lee, Kristine M Cornejo, Jillian Rork, Karen Rothman, April Deng
No abstract text is available yet for this article.
March 9, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28271998/myeloid-sarcoma-as-the-first-sign-of-progression-of-chronic-myeloid-leukemia-in-medullary-chronic-phase-experience-from-a-tertiary-cancer-centre-in-southern-india
#3
(no author information available yet)
INTRODUCTION: Myeloid sarcoma (MS) in chronic myeloid leukemia (CML) is a rare entity which is suggestive of advanced phase of the disease and poorer outcomes. There is little data in literature available regarding its presentation in medullary chronic phase (CP) as well as outcomes in the era of tyrosine kinase inhibitors (TKI) and needs to be carefully evaluated as it can present the first sign of progressive disease before haematological progression. METHODS: We identified cases of MS presenting with medullary CML-CP from January 2002 to December 2015...
January 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28250648/the-influence-of-pluronic-f68-and-f127-nanocarrier-on-physicochemical-properties-in-vitro-release-and-antiproliferative-activity-of-thymoquinone-drug
#4
Salwa Shaarani, Shahrul Sahul Hamid, Noor Haida Mohd Kaus
BACKGROUND: This study reports on hydrophobic drug thymoquinone (TQ), an active compound found in the volatile oil of Nigella sativa that exhibits anticancer activities. Nanoformulation of this drug could potentially increase its bioavailability to specific target cells. OBJECTIVE: The aim of this study was to formulate TQ into polymer micelle, Pluronic F127 (5.0 wt %) and Pluronic F68 (0.1 wt %), as a drug carrier to enhance its solubility and instability in aqueous media...
January 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28239179/unsuspected-lung-pathology-in-autopsies-of-children-with-cancer
#5
María Elena Y Furuya, Alicia Rodríguez-Velasco, María Carmen Rodríguez-Zepeda, Enrique López-Aguilar, Mario H Vargas, Martha Sciandra-Rico, Rocío Cárdenas-Navarrete, Olivia Madrigal-Muñiz, Carina Feria-Kaiser, Elba E Delgado-González, Miguel Ángel Villasís-Keeverz
BACKGROUND: Although pulmonary involvement is common in patients with cancer, its frequency and nature is seldom reported in the medical literature. OBJECTIVE: To determine the frequency and type of lung pathological conditions revealed by autopsy in children with cancer. METHODS: All reports from autopsies performed in children with cancer from 1989 to 2012 in a pediatric hospital were reviewed. RESULTS: In the analyzed period, 118 autopsies (10...
January 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28212899/outcome-disparities-by-insurance-type-for-patients-with-acute-myeloblastic-leukemia
#6
Dianne Pulte, Felipe A Castro, Hermann Brenner, Lina Jansen
Survival for patients with acute myeloblastic leukemia (AML) has increased during the past two decades. However, socioeconomic disparities may affect survival for some patient populations. We examine survival by insurance type for patients with AML. Using data from the Surveillance, Epidemiology, and End Results database we estimated survival according to insurance status (no insurance, Medicaid, and other insurance) for patients diagnosed with AML in the United States in 2007-2013. One, 3-, and 5-year survival was lower for patients with no insurance and Medicaid than for patients with other insurance...
February 3, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28128805/-the-age-and-sex-frequencies-of-patients-with-leukemia-seen-in-two-reference-centers-in-the-metropolitan-area-of-mexico-city
#7
Adrián Santoyo-Sánchez, Christian Omar Ramos-Peñafiel, Azucena Saavedra-González, Lizbeth González-Almanza, Adolfo Martínez-Tovar, Irma Olarte-Carrillo, Juan Collazo-Jaloma
INTRODUCTION: In developing countries, there is commonly a lack of population-based cancer registries or underreporting, thus not recognizing the true dimensions of the problem. AIM: To describe the age and sex frequencies of the major subtypes of leukemias in two hospitals of reference in the metropolitan area of Mexico City. MATERIAL AND METHODS: This is a descriptive and retrospective study, based on medical records of two hematology services during January 2007 to October 2014; all cases diagnosed with leukemia were included...
January 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/28069801/aurora-a-and-nf-%C3%AE%C2%BAb-survival-pathway-drive-chemoresistance-in-acute-myeloid-leukemia-via-the-traf-interacting-protein-tifa
#8
Tong-You Wade Wei, Pei-Yu Wu, Ting-Jung Wu, Hsin-An Hou, Wen-Chien Chou, Chieh-Lin Jerry Teng, Chih-Ru Lin, Jo-Mei Maureen Chen, Ting-Yang Lin, Hsiang-Chun Su, Chia-Chi Flora Huang, Chang-Tze Ricky Yu, Shih-Lan Hsu, Hwei-Fang Tien, Ming-Daw Tsai
Aurora A-dependent NF-κB signaling portends poor prognosis in acute myeloid leukemia (AML) and other cancers, but the functional basis underlying this association is unclear. Here, we report that Aurora A is essential for Thr9 phosphorylation of the TRAF-interacting protein TIFA, triggering activation of the NF-κB survival pathway in AML. TIFA protein was overexpressed concurrently with Aurora A and NF-κB signaling factors in patients with de novo AML relative to healthy individuals and also correlated with poor prognosis...
January 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28064313/-biological-microchip-for-establishing-the-structure-of-fusion-transcripts-involving-mll-in-children-with-acute-leukemia
#9
T V Nasedkina, A Yu Ikonnikova, G A Tsaur, A V Karateeva, Yu I Ammour, M A Avdonina, A I Karachunskii, A S Zasedatelev
MLL is involved in fusion genes with more than 100 partner genes, approximately 80 of which have been characterized at the molecular level. MLL fusion genes are often found in infants (60-80% of acute lymphoblastic leukemia (ALL) cases and 40-50% of acute myeloblastic leukemia (AML) cases) and are appreciably rarer (8-10%) in children older than 1 year of age. MLL rearrangements are important markers in diagnosis and treatment choice. To identify the partner gene is of primary importance for prognosis and minimal residual disease monitoring...
November 2016: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28034993/lenalidomide-combined-with-intensive-chemotherapy-in-acute-myeloid-leukemia-and-higher-risk-myelodysplastic-syndrome-with-5q-deletion-results-of-a-phase-ii-study-by-the-groupe-francophone-des-myelodysplasies
#10
Lionel Ades, Thomas Prebet, Aspasia Stamatoullas, Christian Recher, Romain Guieze, Emmanuel Raffoux, Krimo Bouabdallah, Mathilde Hunault, Eric Wattel, Laure Stalnikiewicz, Andrea Toma, Herve' Dombret, Nobert Vey, Marie Sebert, Claude Gardin, Cendrine Chaffaut, Sylvie Chevret, Pierre Fenaux
Patients with acute myeloblastic leukemia or higher risk myelodysplastic syndromes with 5q deletion (generally within complex karyotype) respond poorly to intensive chemotherapy and have very poor survival. In this population, we evaluated escalating doses of lenalidomide combined with IC in a phase II study (NCT00885508) Treatment consisted of daunorubicin (45 mg/m2/d1-3 in cohort 1, escalated to 60mg/m2/1-3 in cohorts2 and 3) combined with AraC (200mg/m2/ d1-7) and lenalidomide (10mg/d1-21 in cohorts1 and 2, escalated to 25mg/d1-21 in cohort 3)...
December 29, 2016: Haematologica
https://www.readbyqxmd.com/read/28028030/myeloid-neoplasms-with-eosinophilia
#11
REVIEW
Andreas Reiter, Jason Gotlib
Molecular diagnostics has generated substantial dividends in dissecting the genetic basis of myeloid neoplasms with eosinophilia. The family of diseases generated by dysregulated fusion tyrosine kinase (TK) genes is recognized by the World Health Organization (WHO) category, "Myeloid/lymphoid neoplasms with eosinophilia and rearrangement of PDGFRA, PDGFRB, or FGFR1, or with PCM1-JAK2" In addition to myeloproliferative neoplasms (MPN), these patients can present with myelodysplastic syndrome/MPN, as well as de novo or secondary mixed-phenotype leukemias or lymphomas...
February 9, 2017: Blood
https://www.readbyqxmd.com/read/27941279/post-allogeneic-stem-cell-transplant-extramedullary-relapse-of-acute-megakaryoblastic-leukemia-initially-detected-by-elevated-wt1-mrna-levels-in-peripheral-blood
#12
Tetsuro Ochi, Koji Iwato, Yuta Katayama, Kayo Toishigawa, Takeshi Okatani, Ryota Imanaka, Kohei Kyo, Mitsuhiro Itagaki, Shinnya Katsutani, Hideki Asaoku, Taiichi Kyo
An 18-year-old male was admitted to our hospital for fever, and was diagnosed with acute megakaryoblastic leukemia (AML M7) based on the presence of CD42a and CD61 positive myeloblasts in peripheral blood (PB). Induction chemotherapy at our hospital resulted in complete remission (CR). Subsequently, he underwent unrelated HLA-DR one locus-mismatched allogeneic bone marrow (BM) transplantation. Although CR was maintained without development of graft-versus-host disease (GvHD), the WT1 mRNA level in PB was elevated on post-transplant day 134...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27849184/ring-chromosome-7-a-rare-structural-abnormality-in-acute-myeloid-leukemia-aml
#13
Kristie Q Liu, Carlos A Tirado
Ring chromosomes, often leading to partial deletions, are found in about 2% of cases of acute myeloid leukemia (AML) and are typically associated with a poor prognosis. Herein, we present the case of a 62-year-old female who showed markedly hypercellular marrow with sheets of myeloblasts, monoblasts, and promonocytes, confirmed by flow cytometry and cases of AML with r(7) have been reported. Analysis of these cases demonstrated that r(7) was a sole abnormality in 20%, a primary abnormality in 14%, and in the context of a complex karyotype in 66%...
2016: Journal of the Association of Genetic Technologists
https://www.readbyqxmd.com/read/27833171/serum-levels-of-soluble-adhesion-molecules-in-newly-diagnosed-acute-myeloid-leukemia-and-in-complete-remission-suggest-endothelial-cell-activation-by-myeloblasts
#14
Tomas Kupsa, Jan Vanek, Zak Pavel, Ladislav Jebavy, Jan M Horacek
BACKGROUND AND AIMS: Despite high-dose multi-agent chemotherapy and allogeneic stem cell transplantation, the relapse rate of acute myeloid leukemia (AML) is high. Further, the disease is highly resistent to drugs. We speculated that deeper understanding of AML-endothelial cell interactions might provide new targets for selective modulation of the AML microenvironment and form the basis for novel treatment approaches. In this study, we evaluated levels of endothelium derived soluble adhesion molecules in active disease and in complete remission (CR) and their relationship with inflammatory cytokines...
November 10, 2016: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/27826123/novel-strategies-of-adoptive-immunotherapy-how-natural-killer-cells-may-change-the-treatment-of-elderly-patients-with-acute-myeloblastic-leukemia
#15
REVIEW
Roberto M Lemoli, Sarah Parisi, Antonio Curti
Although many attempts have been made to identify novel molecular-targeted therapies for patients with acute myeloid leukemia, their translation into the clinic have had limited impact. In particular, the question of effective and curative treatments for elderly patients, who are not eligible for stem cell transplantation, remains an unmet medical need. To answer this question, a wide range of immunologic therapeutic strategies, mostly T cell based, have been proposed and investigated. At present, however, the clinical results have been largely unsatisfactory...
January 2017: Experimental Hematology
https://www.readbyqxmd.com/read/27800262/ophthalmologic-findings-in-children-with-leukemia-a-single-center-study
#16
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/27784881/bilineal-extramedullary-blast-crisis-as-an-initial-presentation-of-chronic-myeloid-leukemia-a-case-report-and-literature-review
#17
REVIEW
Xiaoning Gao, Jie Li, Lili Wang, Ji Lin, Hongshi Jin, Yihan Xu, Nan Wang, Yu Zhao, Daihong Liu, Li Yu, Quanshun Wang
BACKGROUND Chronic myeloid leukemia (CML) is a clonal myeloproliferative disorder characterized by the Philadelphia chromosome generated by the reciprocal translocation t(9: 22)(q34;q11). CML is usually diagnosed in the chronic phase. Blast crisis represents an advanced phase of CML. Extramedullary blast crisis as the initial presentation of CML with bone marrow remaining in chronic phase is an unusual event. Further, extramedullary blast crisis with T lymphoid/myeloid bilineal phenotype as an initial presentation for CML is extremely unusual...
October 27, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27721621/primary-intraoral-granulocytic-sarcoma-a-rare-case-presenting-as-generalized-gingival-enlargement
#18
Thayalan Dineshkumar, Vemuri Suresh, Ramadas Ramya, Krishnan Rajkumar
Granulocytic sarcoma (GS) is an extremely rare condition involving infiltration of myeloblasts or immature myeloid cells in an extramedullary site. It is also known as chloroma, myeloid sarcoma or extramedullary myeloid tumor. It usually occurs concomitantly with acute myelogenous leukemia or with the onset of blastic phase of chronic myelogenous leukemia. On rare occasions, it evolves even before the onset of leukemias, and when it precedes leukemias without any overt signs, it is referred to as the primary type...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/27646584/a-case-of-myeloid-sarcoma-of-intestine
#19
Sung Won Lim, Hang Lak Lee, Kang Nyeong Lee, Dae Won Jun, In Young Kim, Eunjin Kim, Hyein Ahn, Chan Kum Park
Myeloid sarcoma (MS) is an extramedullary involvement of immature myeloid proliferation. An isolated MS is defined as a myeloblastic tumor when it arises without any concomitant circulating disease. A diagnosis of MS is established using pathologic features including infiltration of myeloblasts and strong myeloperoxidase expression with negative cytokeratin immunohistochemical staining. We report a rare case of colonic MS without any peripheral blood abnormality. If the affected patient were left untreated, the MS could evolve into acute myeloid leukemia (AML) within one year...
September 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/27641501/inhibition-of-dihydroorotate-dehydrogenase-overcomes-differentiation-blockade-in-acute-myeloid-leukemia
#20
David B Sykes, Youmna S Kfoury, François E Mercier, Mathias J Wawer, Jason M Law, Mark K Haynes, Timothy A Lewis, Amir Schajnovitz, Esha Jain, Dongjun Lee, Hanna Meyer, Kerry A Pierce, Nicola J Tolliday, Anna Waller, Steven J Ferrara, Ashley L Eheim, Detlef Stoeckigt, Katrina L Maxcy, Julien M Cobert, Jacqueline Bachand, Brian A Szekely, Siddhartha Mukherjee, Larry A Sklar, Joanne D Kotz, Clary B Clish, Ruslan I Sadreyev, Paul A Clemons, Andreas Janzer, Stuart L Schreiber, David T Scadden
While acute myeloid leukemia (AML) comprises many disparate genetic subtypes, one shared hallmark is the arrest of leukemic myeloblasts at an immature and self-renewing stage of development. Therapies that overcome differentiation arrest represent a powerful treatment strategy. We leveraged the observation that the majority of AML, despite their genetically heterogeneity, share in the expression of HoxA9, a gene normally downregulated during myeloid differentiation. Using a conditional HoxA9 model system, we performed a high-throughput phenotypic screen and defined compounds that overcame differentiation blockade...
September 22, 2016: Cell
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