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https://www.readbyqxmd.com/read/28621841/hypomethylating-agent-therapy-use-and-survival-in-older-patients-with-chronic-myelomonocytic-leukemia-in-the-united-states-a-large-population-based-study
#1
Amer M Zeidan, Xin Hu, Jessica B Long, Rong Wang, Xiaomei Ma, Nikolai A Podoltsev, Scott F Huntington, Steven D Gore, Amy J Davidoff
BACKGROUND: Despite the approval of azacitidine in 2004 and the approval of decitabine in 2006 in the United States for chronic myelomonocytic leukemia (CMML), the overall survival (OS) benefit with hypomethylating agent (HMA) therapy is unclear. METHODS: Older adults (age ≥ 66 years) who had been diagnosed with CMML from 2001 to 2011 were selected from the Surveillance, Epidemiology, and End Results-Medicare database, and propensity score matching was used to match patients who had been diagnosed after HMA approval (2007-2011) and had received HMA treatment with patients diagnosed before HMA approval (2001-2003)...
June 16, 2017: Cancer
https://www.readbyqxmd.com/read/28618329/therapy-of-older-persons-with-acute-myeloid-leukaemia
#2
REVIEW
Utz Krug, Robert Peter Gale, Wolfgang E Berdel, Carsten Müller-Tidow, Matthias Stelljes, Klaus Metzeler, M Cristina Sauerland, Wolfgang Hiddemann, Thomas Büchner
Most persons age≥60 y with acute myeloid leukaemia (AML) die from their disease. When interpreting clinical trials data from these persons one must be aware of substantial selection biases. Randomized trials of post-remission treatments can be performed upfront or after achieving defined landmarks. Both strategies have important limitations. Selection of the appropriate treatment is critical. Age, performance score, co-morbidities and frailty provide useful data to treatment selection. If an intensive remission induction therapy is appropriate, therapy with cytarabine and an anthracycline is the most common regimen...
June 1, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28607470/a-phase-ii-multicentre-trial-of-decitabine-in-higher-risk-chronic-myelomonocytic-leukemia
#3
V Santini, B Allione, G Zini, D Gioia, M Lunghi, A Poloni, D Cilloni, A Sanna, E Masiera, M Ceccarelli, O Abdel-Wahab, A Terenzi, E Angelucci, C Finelli, F Onida, A M Pelizzari, D Ferrero, G Saglio, M Figueroa, A Levis
Chronic myelomonocytic leukemia (CMML) is a complex clonal hematological disorder classified among myelodysplastic/myeloproliferative neoplasms (MDS/MPNs). Prognosis is poor and there is a lack of effective treatments. The hypomethylating agent decitabine has shown activity against MDS and elderly acute myeloid leukemia, but there is little data focusing specifically on its efficacy in CMML. In this prospective, phase 2 Italian study, CMML patients received i.v. decitabine 20 mg/m(2)/day on Days 1 to 5 of a 28-day treatment cycle...
June 13, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28599286/decitabine-inhibits-t-cell-proliferation-via-a-novel-tet2-dependent-mechanism-and-exerts-potent-protective-effect-in-mouse-auto-and-allo-immunity-models
#4
Xue Wang, Jun Wang, Yong Yu, Tonghui Ma, Ping Chen, Bing Zhou, Ran Tao
Multiple sclerosis (MS) is an autoimmune disease characterized by the dysregulated immune response including innate and adaptive immune responses. Increasing evidence has proven the importance of epigenetic modification in the progression of MS. Recent studies revealed that low-dose decitabine (Dec, 5-Aza-2'-deoxycytidine), which incorporates into replicating DNA and inhibits DNA methylation, could prevent experimental autoimmune encephalomyelitis (EAE) development by increasing the number of regulatory T cells (Tregs)...
May 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28598109/-the-study-of-decitabine-effect-on-the-endometrial-carcinoma-xenografted-in-nude-mice
#5
Ran-Hong Li, Xue-Ping Wang, Hui Liu
OBJECTIVES: To explore the effect of the demethylation drug 5-Aza-CdR on endometrial carcinoma xenografted in nude mice. METHODS: Randomly assigned the mice into decitabine (AZA),cisplatin (DDP),medroxyprogesterone acetate (MPA),AZA+DDP,AZA+MPA,DDP+MPA and model groups (three in each group) after building the models of xenografted tumor by transplanting the HEC-1B cells on nude mice,and dealt them respectively with corresponding drugs (1 μg/g,single or combination) in the experiment groups and normal saline in model group (injected per 3 d,8 injections in total)...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28589904/decitabine-vorinostat-combination-treatment-in-acute-myeloid-leukemia-activates-pathways-with-potential-for-novel-triple-therapy
#6
Christine S Young, Kathryn M Clarke, Laura M Kettyle, Alexander Thompson, Ken I Mills
Despite advancements in cancer therapeutics, acute myeloid leukemia patients over 60 years old have a 5-year survival rate of less than 8%. In an attempt to improve this, epigenetic modifying agents have been combined as therapies in clinical studies. In particular combinations with Decitabine and Vorinostat have had varying degrees of efficacy. This study therefore aimed to understand the underlying molecular mechanisms of these agents to identify potential rational epi-sensitized combinations.Combined Decitabine-Vorinostat treatment synergistically decreased cell proliferation, induced apoptosis, enhanced acetylation of histones and further decreased DNMT1 protein with HL-60 cells showing a greater sensitivity to the combined treatment than OCI-AML3...
May 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28562519/epigenetic-combination-therapy-for-children-with-secondary-myelodysplastic-syndrome-mds-acute-myeloid-leukemia-aml-and-concurrent-solid-tumor-relapse
#7
Chana L Glasser, Alice Lee, Don Eslin, Lianna Marks, Shakeel Modak, Julia L Glade Bender
Secondary myelodysplastic syndrome (MDS)/acute myeloid leukemia (AML) is a rare but devastating complication of solid tumor treatment involving high-dose topoisomerase II inhibitor and alkylator chemotherapy. For relapsed or elderly MDS and AML patients ineligible for hematopoietic stem cell transplantation, epigenetic therapies, including DNA methyltransferase inhibitors and histone deacetylase inhibitors, have been utilized as palliative therapy, offering a well-tolerated approach to disease stabilization, prolonged survival, and quality of life...
May 29, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28555084/mitoxantrone-etoposide-and-cytarabine-mec-following-epigenetic-priming-with-decitabine-in-adults-with-relapsed-refractory-acute-myeloid-leukemia-or-other-high-grade-myeloid-neoplasms-a-phase-1-2-study
#8
A B Halpern, M Othus, E M Huebner, S A Buckley, E L Pogosova-Agadjanyan, K F Orlowski, B L Scott, P S Becker, P C Hendrie, T L Chen, M-Em Percival, E H Estey, D L Stirewalt, R B Walter
DNA methyltransferase inhibitors sensitize leukemia cells to chemotherapeutics. We therefore conducted a phase 1/2 study of mitoxantrone, etoposide, and cytarabine following 'priming' with 5-10 days of decitabine (dec/MEC) in 52 adults (median age 55 [range: 19-72] years) with relapsed/refractory acute myeloid leukemia (AML) or other high-grade myeloid neoplasms. During dose escalation in cohorts of 6-12 patients, all dose levels were well-tolerated. As response rates appeared similar with 7 and 10-days of decitabine, a 7-day course was defined as the recommended phase 2 dose (RP2D)...
May 30, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28498449/bioinformatic-analysis-of-the-effects-and-mechanisms-of-decitabine-and-cytarabine-on-acute-myeloid-leukemia
#9
Shiyong Zhou, Pengfei Liu, Huilai Zhang
Acute myeloid leukemia (AML) is a frequently occurring malignant disease of the blood and may result from a variety of genetic disorders. The present study aimed to identify the underlying mechanisms associated with the therapeutic effects of decitabine and cytarabine on AML, using microarray analysis. The microarray datasets GSE40442 and GSE40870 were downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) and differentially methylated sites were identified in AML cells treated with decitabine compared with those treated with cytarabine via the Linear Models for Microarray Data package, following data pre‑processing...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28494506/minimal-residual-disease-eradication-with-epigenetic-therapy-in-core-binding-factor-acute-myeloid-leukemia
#10
Brittany Knick Ragon, Naval Daver, Guillermo Garcia-Manero, Farhad Ravandi, Jorge Cortes, Tapan Kadia, Betul Oran, Maro Ohanian, Alessandra Ferrajoli, Naveen Pemmaraju, Hagop M Kantarjian, Gautam Borthakur
Recurrent translocations, t(8;21) or inv(16), in core binding factor acute myeloid leukemia (CBF-AML) are amenable to monitoring for minimal residual disease (MRD) with reverse transcriptase polymerase chain reaction (RTPCR). Despite a favorable prognosis, disease relapse remains the single cause of treatment failure in CBF-AML. Fusion products of these translocations recruit epigenetic silencing complexes resulting in hematopoietic maturation arrest. We hypothesized that maintenance therapy with hypomethylating agents (HMA), including decitabine (DAC) and azacitidine (AZA) after induction/consolidation, can be used for MRD elimination to ultimately prolong relapse free survival...
May 11, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28489568/efficacy-and-safety-of-decitabine-in-treatment-of-elderly-patients-with-acute-myeloid-leukemia-a-systematic-review-and-meta-analysis
#11
Pin-Fang He, Jing-Dong Zhou, Dong-Ming Yao, Ji-Chun Ma, Xiang-Mei Wen, Zhi-Hui Zhang, Xin-Yue Lian, Zi-Jun Xu, Jun Qian, Jiang Lin
Elderly patients with acute myeloid leukemia (AML) have limited treatment options concerned about their overall fitness and potential treatment related mortality. Although a number of clinical trials demonstrated benefits of decitabine treatment in elderly AML patients, the results remains controversial. A meta-analysis was performed to evaluate efficacy and safety of decitabine in treatment of elderly AML patients. Eligible studies were identified from PubMed, Web of Science, Embase and Cochrane Library. Nine published studies were included in the meta-analysis, enrolling 718 elderly AML patients...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28488914/decitabine-treatment-of-multiple-extramedullary-acute-myeloid-leukemia-involvements-after-essential-thrombocytemia-transformation
#12
Pasquale Niscola, Elisabetta Abruzzese, Malgorzata Monika Trawinska, Massimiliano Palombi, Andrea Tendas, Marco Giovannini, Laura Scaramucci, Luca Cupelli, Stefano Fratoni, Nélida Inés Noguera, Gianfranco Catalano, Paolo de Fabritiis
No abstract text is available yet for this article.
May 10, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28484169/current-diagnosis-and-treatment-for-myelodysplastc-syndromes
#13
Tomoko Hata
Genetic analysis of myelodysplastic syndrome (MDS) using next-generation sequencing yields medcially important information, showing gene mutations in 90% of MDS cases. The World Health Organization (WHO) classification was revised in 2016 to incorporate SF3B1 gene mutations, frequently seen in MDS with ringed sideroblasts, into the diagnostic criteria. Unlike the poor prognosis seen in cases with ASXL1, EZH2, RUNX1 and in particular, TP53 MDS-related mutations, SF3B1 gene mutations show a favorable prognosis...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28482026/pre-clinical-drug-screen-reveals-topotecan-actinomycin-d-and-volasertib-as-potential-new-therapeutic-candidates-for-etmr-brain-tumor-patients
#14
Christin Schmidt, Nil A Schubert, Sebastian Brabetz, Norman Mack, Benjamin Schwalm, Jennifer A Chan, Florian Selt, Christel Herold-Mende, Olaf Witt, Till Milde, Stefan M Pfister, Andrey Korshunov, Marcel Kool
Background: Embryonal tumor with multilayered rosettes (ETMR) is a rare and aggressive embryonal brain tumor that solely occurs in infants and young children and has only recently been recognized as a separate brain tumor entity in the WHO classification for CNS tumors. Patients have a very dismal prognosis with a median survival of 12 months upon diagnosis despite aggressive treatment. The aim of this study was to develop novel treatment regimens in a pre-clinical drug screen in order to inform potentially more active clinical trial protocols...
May 8, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28480959/research-on-the-epigenetic-regulation-mechanism-of-the-ptpn6-gene-in-advanced-chronic-myeloid-leukaemia
#15
Xiaokun Zhang, Lin Yang, Xiaojun Liu, Ziyuan Nie, Xingzhe Wang, Yuxia Pan, Jianmin Luo
PTPN6, a tyrosine phosphatase protein, plays a negative role in cell signal transduction and is negatively correlated with tumour formation and growth. However, epigenetic regulation mechanism of the PTPN6 gene in advanced chronic myeloid leukaemia (CML) remains unclear. This study investigated bone marrow or blood samples from 44 CML patients and 10 healthy volunteers. KCL22 and K562 cells were cultured and treated with demethylation drugs and histone deacetylase inhibitors. Real time quantitative polymerase chain reaction (qPCR), methylation-specific PCR, bisulfite sequencing PCR, Western blotting, co-immunoprecipitation and chromatin immunoprecipitation (ChIP) was performed...
May 8, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28474744/outcome-of-elderly-patients-after-failure-to-hypomethylating-agents-given-as-frontline-therapy-for-acute-myeloid-leukemia-single-institution-experience
#16
Rama Nanah, Kristen McCullough, William Hogan, Kebede Begna, Mrinal Patnaik, Michelle Elliott, Mark Litzow, Aref Al-Kali
Outcomes of acute myeloid leukemia (AML) in elderly patients unfit for intensive chemotherapy is challenging. Hypomethylating agents (HMAs) can be effective in these patients but responses are usually short-lived. The majority of patients will either have stable disease or progress through therapy. We hereby describe the outcome of these patients at our institution after they fail HMAs. The data on 56 AML patients at Mayo Clinic, Rochester were reviewed. Patients were considered for our study if they received HMA as frontline therapy for their AML...
May 5, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28468099/-effects-of-decitabine-on-proliferation-capacity-and-tfpi-2-expression-in-leukemia-k562-cells
#17
F J Wang, J J Li, H T Xie, Y Y Zeng, J Liu, J Zhang
No abstract text is available yet for this article.
April 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28468092/-a-preliminary-study-on-the-outcome-of-lower-risk-myelodysplastic-syndrome-by-low-dose-decitabine
#18
L Ye, Y L Ren, L L Xie, Y W Luo, P P Lin, X P Zhou, L Y Ma, C Mei, W L Xu, J Y Wei, H F Jiang, L M Zhang, H Zeng, H Y Tong
Objective: To assess the efficiency and safety of low-dose decitabine in patients with lower-risk myelodysplastic syndrome (MDS) to couple with the clinical significance of MDS-related gene mutations. Methods: This study was done in 4 institutions in Zhejiang Province. A total of 62 newly diagnosed patients with lower-risk MDS were assigned to two groups of decitabine (12 mg·m(-2)·d(-1) for 5 consecutive days) and best supportive care (BSC) . Their bone marrow samples were subject to examinations of MDS-related 15 gene mutations...
April 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28445872/successful-management-of-decitabine-prior-to-full-dose-idarubicin-and-cytarabine-in-the-treatment-of-refractory-recurrent-acute-myeloid-leukemia
#19
Hongyu Zhao, Li Xu, Yongjian Yang, Jianhua Shao, Ping Chen, Xuebin Dong, Linping Gu, Daqi Li
AIMS: To investigate the safety and efficacy of the triple therapy of decitabine, idarubicin, and cytarabine in the treatment of refractory or recurrent acute myeloid leukemia (R/R AML). METHODS: We conducted a single-center retrospective study in which decitabine treatment was administered prior to full-dose idarubicin and cytarabine (D-IA) for 21 R/R AML patients. RESULTS: After 1 cycle of D-IA, 10/21 (47.6%) patients experienced a complete remission (CR) and 2/21 (9...
2017: Acta Haematologica
https://www.readbyqxmd.com/read/28436707/samhd1-protects-cancer-cells-from-various-nucleoside-based-antimetabolites
#20
Nikolas Herold, Sean G Rudd, Kumar Sanjiv, Juliane Kutzner, Julia Bladh, Cynthia B J Paulin, Thomas Helleday, Jan-Inge Henter, Torsten Schaller
Recently, we demonstrated that sterile α motif and HD domain containing protein 1 (SAMHD1) is a major barrier in acute myelogenous leukemia (AML) cells to the cytotoxicity of cytarabine (ara-C), the most important drug in AML treatment. Ara-C is intracellularly converted by the canonical dNTP synthesis pathway to ara-CTP, which serves as a substrate but not an allosteric activator of SAMHD1. Using an AML mouse model, we show here that wild type but not catalytically inactive SAMHD1 reduces ara-C treatment efficacy in vivo...
June 3, 2017: Cell Cycle
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