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Acute myelogenous leukemia

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https://www.readbyqxmd.com/read/28533407/histone-binding-of-dpf2-mediates-its-repressive-role-in-myeloid-differentiation
#1
Ferdinand M Huber, Sarah M Greenblatt, Andrew M Davenport, Concepcion Martinez, Ye Xu, Ly P Vu, Stephen D Nimer, André Hoelz
Double plant homeodomain finger 2 (DPF2) is a highly evolutionarily conserved member of the d4 protein family that is ubiquitously expressed in human tissues and was recently shown to inhibit the myeloid differentiation of hematopoietic stem/progenitor and acute myelogenous leukemia cells. Here, we present the crystal structure of the tandem plant homeodomain finger domain of human DPF2 at 1.6-Å resolution. We show that DPF2 interacts with the acetylated tails of both histones 3 and 4 via bipartite binding pockets on the DPF2 surface...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28524659/synthesis-molecular-docking-molecular-dynamics-studies-and-biological-evaluation-of-4h-chromone-1-2-3-4-tetrahydropyrimidine-5-carboxylate-derivatives-as-potential-anti-leukemic-agents
#2
Zahra Dolatkhah, Shahrzad Javanshir, Ahmad Shahir Sadr, Jaber Hosseini, Soroush Sardari
Series of 4H-chromone-1,2,3,4-tetrahydropyrimidine-5-carboxylates derivatives were synthesized via a three component one-pot condensation of chromone-3-carbaldehyde, alkyl acetoacetate and urea or thiourea, using MCM-41-SO3H as an efficient Nano-catalysts, and evaluated for their anti-cancer activity using a combined in silico docking and molecular dynamics protocol to estimate the binding affinity of the title compounds with the Bcr-Abl oncogene. Two programs, AutoDock 4 and AutoDock Vina software were applied to dock the target protein with synthesized compounds and ATP...
May 19, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28520526/kir3dl1-hl-a-b-subtypes-govern-acute-myelogenous-leukemia-relapse-after-hematopoietic-cell-transplantation
#3
Jeanette E Boudreau, Fabio Giglio, Ted A Gooley, Philip A Stevenson, Jean-Benoît Le Luduec, Brian C Shaffer, Raja Rajalingam, Lihua Hou, Carolyn Katovich Hurley, Harriet Noreen, Elaine F Reed, Neng Yu, Cynthia Vierra-Green, Michael Haagenson, Mari Malkki, Effie W Petersdorf, Stephen Spellman, Katharine C Hsu
Purpose Disease relapse remains a major challenge to successful outcomes in patients who undergo allogeneic hematopoietic cell transplantation (HCT). Donor natural killer (NK) cell alloreactivity in HCT can control leukemic relapse, but capturing alloreactivity in HLA-matched HCT has been elusive. HLA expression on leukemia cells-upregulated in the post-HCT environment-signals for NK cell inhibition via inhibitory killer immunoglobulin-like (KIR) receptors and interrupts their antitumor activity. We hypothesized that varied strengths of inhibition among subtypes of the ubiquitous KIR3DL1 and its cognate ligand, HLA-B, would titrate NK reactivity against acute myelogenous leukemia (AML)...
May 18, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28510690/trichosporonosis-in-pediatric-patients-with-a-hematologic-disorder
#4
Catherine E Foster, Morven S Edwards, Julienne Brackett, Deborah A Schady, C Mary Healy, Carol J Baker
Background.: Trichosporonosis is an emerging and often fatal opportunistic fungal infection in immunocompromised patients, particularly those with hematologic malignancy, but data in children are lacking. Methods.: We report here 3 cases of invasive infection caused by Trichosporon asahii in pediatric patients with acute lymphoblastic leukemia at Texas Children's Hospital in Houston, Texas. We also conducted a literature review and identified 16 additional reports of pediatric patients with invasive T asahii infection and an underlying malignant or nonmalignant hematologic disorder...
May 16, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28507111/real-life-assessment-of-the-safety-and-effectiveness-of-the-new-tablet-and-intravenous-formulations-of-posaconazole-in-the-prophylaxis-of-invasive-fungal-infections-analysis-of-343-courses
#5
Frank P Tverdek, Sang Taek Heo, Samuel L Aitken, Bruno Granwehr, Dimitrios P Kontoyiannis
BACKGROUND: Posaconazole is the preferred mold-active azole for prophylaxis against invasive fungal infection (IFI) in patients with hematologic malignancy (HM). Delayed release tablet and intravenous formulations of posaconazole have recently become available, but clinical data are limited. We sought to examine the real-world pharmacokinetics and prophylactic effectiveness of the new formulations of posaconazole given as prophylaxis in patients with HM. METHODS: A retrospective cohort of all consecutive adult inpatients with HM who received ≥3 days of posaconazole as tablet or intravenous from 12/1/2013-12/31/2015 for primary IFI prophylaxis at MD Anderson Cancer center...
May 15, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28502334/ap-1-expression-and-its-clinical-relevance-in-immune-disorders-and-cancer
#6
REVIEW
Shivtia Trop-Steinberg, Yehudit Azar
The inflammatory response is known to have a significant role in certain autoimmune diseases and malignancies. We review current knowledge regarding the functions of activator protein 1 (AP-1) as an important modulator in several immune disorders and carcinomas. AP-1 is overexpressed in rheumatoid arthritis and in long-term allogeneic hematopoietic stem cell transplantation survivors; however, decreased expression of AP-1 has been observed in psoriasis, systematic lupus erythematosus and in patients who do not survive after hematopoietic stem cell transplantation...
May 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28492808/famlf-is-a-target-of-mir-181b-in-burkitt-lymphoma
#7
J G Li, Y Ding, Y M Huang, W L Chen, L L Pan, Y Li, X L Chen, Y Chen, S Y Wang, X N Wu
Burkitt lymphoma (BL) is a highly malignant non-Hodgkin's lymphoma that is closely related to the abnormal expression of genes. Familial acute myelogenous leukemia related factor (FAMLF; GenBank accession No. EF413001.1) is a novel gene that was cloned by our research group, and miR-181b is located in the intron of the FAMLF gene. To verify the role of miR-181b and FAMLF in BL, RNAhybrid software was used to predict target site of miR-181b on FAMLF and real-time quantitative PCR (RQ-PCR) was used to detect expression of miR-181b and FAMLF in BL patients, Raji cells and unaffected individuals...
May 4, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28490935/characteristics-predicting-outcomes-of-allogeneic-stem-cell-transplantation-in-relapsed-acute-myelogenous-leukemia
#8
J Frazer, S Couban, S Doucette, S Shivakumar
BACKGROUND: Allogeneic hematopoietic stem-cell transplantation (ahsct) is associated with significant morbidity and mortality, but it can cure carefully selected patients with acute myeloid leukemia (aml) in second remission (cr2). In a cohort of patients with aml who underwent ahsct in cr2, we determined the pre-transplant factors that predicted for overall survival (os), relapse, and non-relapse mortality. We also sought to validate the prognostic risk groups derived by Michelis and colleagues in this independent population...
April 2017: Current Oncology
https://www.readbyqxmd.com/read/28488049/acute-myelogenous-leukemia-cells-secrete-factors-that-stimulate-cellular-ldl-uptake-via-autocrine-and-paracrine-mechanisms
#9
Hasanuzzaman Bhuiyan, Michèle Masquelier, Loukas Tatidis, Astrid Gruber, Christer Paul, Sigurd Vitols
Leukemic cells isolated from most patients with acute myelogenous leukemia (AML) have higher low density lipoprotein (LDL) uptake than normal mononuclear blood cells. Little is known, however, about the mechanism behind the elevated LDL uptake. We investigated if AML cells secrete factors that stimulate cellular LDL uptake. Mononuclear blood cells were isolated from peripheral blood from 42 patients with AML at diagnosis. Cellular LDL uptake was determined from the degradation rate of (125)I-labelled LDL. Conditioned media from AML cells stimulated the LDL degradation in the leukemic cell lines KG1 and HL60, and in isolated AML cells...
May 9, 2017: Lipids
https://www.readbyqxmd.com/read/28481732/human-cap10-like-protein-46%C3%A2-kda-gene-promotes-malignancy-in-colorectal-cancer
#10
Honghong Fang, Qiaoyun Chu, Jie Zhang, Hao Wang, Xinwei Yu, Siqi Ge, Manshu Song, Lijuan Wu, Minglin Lang, Naibai Chang, Youxin Wang, Wei Wang
Colon cancer patients have major unmet needs in terms of robust diagnostics and molecular biomarkers for personalized therapeutics. We have previously reported that human CAP10-like protein 46 kDa (hCLP46) is overexpressed in human acute myelogenous leukemia, T acute lymphoblastic leukemia, and leukemia cell lines. We extend this line of biomarker and diagnostic discovery research by investigating hCLP46 expression in colorectal cancer (CRC) tissues and examine the possibility of hCLP46 as a candidate biomarker for diagnosis and prognosis of CRC...
May 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28476186/importance-of-nutrition-in-the-treatment-of-leukemia-in-children-and-adolescents
#11
REVIEW
Ronald D Barr, David Gomez-Almaguer, Jose Carlos Jaime-Perez, Guillermo J Ruiz-Argüelles
BACKGROUND AND AIMS: Malnutrition has been identified as a prognostic factor in children and adolescents with leukemia. METHODS: A review of the data available on this topic has been carried out. RESULTS AND CONCLUSIONS: In children and adolescents (0-19 years of age), acute lymphoblastic leukemia (ALL) is the commonest form of cancer worldwide and malnutrition is prevalent in this age group, especially in low- and middle-income countries where most of these young people live...
November 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/28468777/the-multi-kinase-inhibitor-debio-0617b-reduces-maintenance-and-self-renewal-of-primary-human-aml-cd34-stem-progenitor-cells
#12
Maximilien Murone, Ramin Radpour, Antoine Attinger, Anne Vaslin Chessex, Anne-Laure Huguenin, Christian M Schürch, Yara Banz, Saumitra Sengupta, Michel Aguet, Stefania Rigotti, Yogeshwar Bachhav, Frederic Massiere, Murali Ramachandra, Andres McAllister, Carsten Riether
Acute myelogenous leukemia (AML) is initiated and maintained by leukemia stem cells (LSCs). LSCs are therapy-resistant, cause relapse and represent a major obstacle for the cure of AML. Resistance to therapy is often mediated by aberrant tyrosine kinase (TK) activation. These TKs primarily activate downstream signaling via STAT3/STAT5. In this study, we analyzed the potential to therapeutically target aberrant TK signaling and to eliminate LSCs via the multi-TK inhibitor Debio 0617B. Debio 0617B has a unique profile targeting key kinases upstream of STAT3/STAT5 signaling such as JAK, SRC, ABL and class III/V receptor TKs...
May 3, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28462085/cellular-immune-profiling-after-sequential-clofarabine-and-lenalidomide-for-high-risk-myelodysplastic-syndromes-and-acute-myeloid-leukemia
#13
Prachi Jain, Jeffrey Klotz, Neil Dunavin, Kit Lu, Eleftheria Koklanaris, Debbie Draper, Jeanine Superata, Fariba Chinian, Quan Yu, Keyvan Keyvanfar, Susan Wong, Pawel Muranski, A John Barrett, Sawa Ito, Minoo Battiwalla
Patients with high risk myelodysplastic syndromes (MDS) and acute myelogenous leukemia (AML) are commonly older with multiple co-morbidities, rendering them unsuitable for intensive induction chemotherapy or transplantation. We report preliminary cellular immune profiling of four cases receiving sequential clofarabine and lenalidomide for high risk MDS and AML in a phase I study. Our results highlight the potential of immune profiling for monitoring immune-modifying agents in high risk MDS and AML.
2017: Leukemia Research Reports
https://www.readbyqxmd.com/read/28459701/mecom-evi1-rearrangements-a-review-and-case-report-of-two-mds-patients-with-complex-3q-inversion-deletions
#14
Helen Lawce, Elina Szabo, Yumi Torimaru, Craig Davis, Karin Osterberg, Susan Olson, Steve Moore
Acute myelogeneous leukemia (AML) with inv(3)/t(3;3)(q13q25) is associated with aberrant expression of the stem-cell regulator MECOM (aka EVI1). Two bone marrow samples received in the OHSU Knight Diagnostic Laboratories (KDL) Cytogenetics Laboratory for chromosomes and FISH for a question of progression of myelodysplastic syndrome (MDS) to AML showed complex abnormalities including a deletion of chromosome 3q, one with del(3)(q13q25) and the other with del(3)(q22q25). In light of the prognostic importance of the activation of the MECOM oncogene and the concurrent inactivation of the GATA2 tumor suppressor that occurs with the classic inversion of chromosome 3q, fluorescence in situ hybridization (FISH) was performed using two different probe designs to better define the 3q deletions in the two cases...
2017: Journal of the Association of Genetic Technologists
https://www.readbyqxmd.com/read/28456658/the-simultaneous-inhibition-of-the-mtor-and-mapk-pathways-with-gnetin-c-induces-apoptosis-in-acute-myeloid-leukemia
#15
J Luis Espinoza, Mahmoud I Elbadry, Masafumi Taniwaki, Kenichi Harada, Ly Quoc Trung, Noriharu Nakagawa, Akiyoshi Takami, Ken Ishiyama, Takuji Yamauchi, Katsuto Takenaka, Shinji Nakao
Acute myelogenous leukemia (AML) is a clinically heterogeneous disease that is frequently associated with relapse and a poor prognosis. Among the various subtypes, AML with the monosomal karyotype (AML-MK) has an extremely unfavorable prognosis. We performed screening to identify antitumor compounds that are capable of inducing apoptosis in primary leukemia cells harboring the AML-MK karyotype and identified a naturally occurring stilbene, Gnetin-C, with potent anti-tumor activities against AML cells from patients with various cytogenetic abnormalities, including patients with the AML-MK karyotype...
April 26, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28456143/a-first-case-of-adrenomyeloneuropathy-with-mutation-y174s-of-the-adrenoleukodystrophy-gene
#16
Yukio Horikawa, Mayumi Enya, Nobuaki Yoshikura, Junichi Kitagawa, Shigeo Takashima, Nobuyuki Shimozawa, Jun Takeda
The patient first noticed spasticity and weakness in his legs. He was diagnosed with chronic myelogenous leukemia (CML); the symptoms were attributed to neuropathy associated with CML. By treatment with dasatinib, he achieved complete hematological remission, but his difficulty in walking was not improved. His neurological symptom worsened together with an increase in body temperature and then disappeared together with a normalized body temperature, which may be attributed to the Uhthoff's phenomenon often observed in multiple sclerosis...
February 15, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28454362/growth-of-tyrosine-kinase-inhibitor-resistant-philadelphia-positive-acute-lymphoblastic-leukemia-role-of-bone-marrow-stromal-cells
#17
Cheng Zhang, Xi Zhang, Shi-Jie Yang, Xing-Hua Chen
Human bone marrow stromal cells (hBMSCs) may contribute to the growth of tyrosine kinase inhibitor (TKI)-resistant chronic myelogenous leukemia (CML). However, there are certain differences in biology between CML and Philadelphia-positive acute lymphoblastic leukemia (Ph(+) ALL). Little is known about the role and mechanism of hBMSCs on the growth of TKI-resistant Ph(+) ALL. The current study co-cultured hBMSCs with the TKI-resistant SUP-B15. Next, the proliferation of SUP-B15 was detected using a Cell Counting Kit-8...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454232/philadelphia-chromosome-with-acute-myeloid-leukemia-and-concurrent-large-b-cell-lymphoma-of-different-origins-a-case-report
#18
Yang Dai, Xiao Shuai, Pu Kuang, Lin Wang, Ting Liu, Ting Niu
Philadelphia chromosome with de novo acute myeloid leukemia (Ph + AML) arising from t(9;22) is an uncommon occurrence. Ph + AML is known to respond poorly to conventional chemotherapy. To the best of our knowledge, simultaneous diagnosis of de novo Ph + AML and lymphoma in a single patient has not yet been reported. The present study reports the case of a 37-year-old female patient who presented with bone pain, fever and lymphadenopathy, and was diagnosed as Ph + AML with concurrent diffuse large B cell lymphoma...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28452054/comparing-outcomes-of-matched-related-donor-and-matched-unrelated-donor-hematopoietic-cell-transplants-in-adults-with-b-cell-acute-lymphoblastic-leukemia
#19
Eric Segal, Michael Martens, Hai-Lin Wang, Ruta Brazauskas, Daniel Weisdorf, Brenda M Sandmaier, H Jean Khoury, Marcos de Lima, Wael Saber
BACKGROUND: Allogeneic hematopoietic cell transplantation (HCT) using human leukocyte antigen (HLA)-matched related donors (RDs) and allogeneic HCT using HLA-matched unrelated donors (URDs) produce similar outcomes for patients with acute myelogenous leukemia, whereas the donor source has been reported to be a predictor of outcomes in myelodysplastic syndrome. METHODS: Post-HCT outcomes for 1458 acute lymphoblastic leukemia patients from 2000 to 2011 were analyzed, and RD and URD transplants were compared...
April 27, 2017: Cancer
https://www.readbyqxmd.com/read/28447422/minimal-residual-disease-in-acute-myelogenous-leukemia
#20
REVIEW
N M Cruz, N Mencia-Trinchant, D C Hassane, M L Guzman
Treatment of acute myelogenous leukemia (AML) over the past four decades remains mostly unchanged and the prognosis for the majority of patients remains poor. Most of the significant advances that have been observed are in defining cytogenetic abnormalities, as well as the genetic and epigenetic profiles of AML patients. While new cytogenetic and genetic aberrations such as the FLT3-ITD and NPM1 mutations are able to guide prognosis for the majority of patients with AML, outcomes are still dismal and relapse rates remain high...
May 2017: International Journal of Laboratory Hematology
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