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Myeloblastic leukemia

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https://www.readbyqxmd.com/read/29346478/differentiation-syndrome-associated-with-enasidenib-a-selective-inhibitor-of-mutant-isocitrate-dehydrogenase-2-analysis-of-a-phase-1-2-study
#1
Amir T Fathi, Courtney D DiNardo, Irina Kline, Laurie Kenvin, Ira Gupta, Eyal C Attar, Eytan M Stein, Stephane de Botton
Importance: Enasidenib mesylate, a mutant isocitrate dehydrogenase 2 (IDH2) protein inhibitor that promotes differentiation of leukemic myeloblasts, was recently approved by the US Food and Drug Administration for use in relapsed/refractory (R/R) mutant IDH2 acute myeloid leukemia (AML). During the first study of enasidenib in humans, a minority of patients with advanced myeloid neoplasms experienced unexpected signs/symptoms of a differentiation syndrome (DS), a potentially lethal entity...
January 18, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29296875/vaccination-with-autologous-myeloblasts-admixed-with-gm-k562-cells-in-patients-with-advanced-mds-or-aml-after-allogeneic-hsct
#2
Vincent T Ho, Haesook T Kim, Natalie Bavli, Martin Mihm, Olga Pozdnyakova, Matthias Piesche, Heather Daley, Carol Reynolds, Nicholas C Souders, Corey Cutler, John Koreth, Edwin P Alyea, Joseph H Antin, Jerome Ritz, Glenn Dranoff, Robert J Soiffer
We report a clinical trial testing vaccination of autologous myeloblasts admixed with granulocyte-macrophage colony-stimulating factor secreting K562 cells after allogeneic hematopoietic stem cell transplantation (HSCT). Patients with myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML) with ≥5% marrow blasts underwent myeloblast collection before HSCT. At approximately day +30, 6 vaccines composed of irradiated autologous myeloblasts mixed with GM-K562 were administered. Tacrolimus-based graft-versus-host disease (GVHD) prophylaxis was not tapered until vaccine completion (∼day 100)...
November 14, 2017: Blood Advances
https://www.readbyqxmd.com/read/29282194/role-of-immune-status-in-chemotherapy-induced-transient-acantholytic-dermatosis
#3
Sogyong L Auh, Ingrid Polcari, Vesna Petronic-Rosic, Aisha Sethi
A 79-year-old man with a recent diagnosis of acute myeloblastic leukemia received induction chemotherapy with daunorubicin and cytarabine, plus moxifloxacin and fluconazole prophylaxis. Approximately 2 weeks later, an asymptomatic eruption appeared on his trunk. He then developed a neutropenic fever and was started on aztreonam, vancomycin, voriconazole, and amikacin and was transferred to our facility from an outside hospital. Micafungin was subsequently added, and the patient defervesced within a few days...
2017: Skinmed
https://www.readbyqxmd.com/read/29273895/smear-campaign-misattribution-of-pancytopenia-to-a-tick-borne-illness
#4
Jessica Lee, Soraya Azzawi, Michael J Peluso, Aaron Richterman, Haiyan Ramirez Batlle, Maria A Yialamas
We report the case of a 51-year-old woman presenting with a targetoid rash and pancytopenia after a tick bite. Initial evaluation was notable for severe neutropenia on the complete blood cell count differential, a positive Lyme IgM antibody, and a peripheral blood smear demonstrating atypical lymphocytes. While her pancytopenia was initially attributed to tick-borne illness, peripheral flow cytometry showed 7% myeloblasts, and a bone marrow biopsy confirmed 60% blasts. The patient was ultimately diagnosed with acute myelogenous leukemia, in addition to early, localized Lyme disease...
December 22, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/29218734/prognostic-value-of-multicenter-flow-cytometry-harmonized-assessment-of-minimal-residual-disease-in-acute-myeloblastic-leukemia
#5
Francis Lacombe, Lydia Campos, Kaoutar Allou, Christine Arnoulet, Adrienne Delabarthe, Florent Dumezy, Jean Feuillard, Franck Geneviève, Estelle Guérin, Julien Guy, Hélène Jouault, Pascale Lepelley, Marc Maynadié, Françoise Solly, Orianne Wagner Ballon, Claude Preudhomme, André Baruchel, Hervé Dombret, Norbert Ifrah, Marie C Béné
The assessment of minimal residual disease (MRD) in acute myeloblastic leukemia is of growing interest as a prognostic marker of patients' outcome. Multiparameter flow cytometry (MFC), tracking leukemia-associated immunophenotypic patterns, has been shown in several studies to be a useful tool to investigate MRD. Here, we report a multicenter prospective study which allowed to define a harmonized analysis strategy, as well as the efficacy of MFC MRD to predict outcome. This study included 276 patients, in 10 different MFC centers, of whom 268 had at least 1 MRD check point...
December 7, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/29216917/unexpected-profile-of-sphingolipid-contents-in-blood-and-bone-marrow-plasma-collected-from-patients-diagnosed-with-acute-myeloid-leukemia
#6
Marzena Wątek, Bonita Durnaś, Tomasz Wollny, Marcin Pasiarski, Stanisław Góźdź, Michał Marzec, Anna Chabowska, Przemysław Wolak, Małgorzata Żendzian-Piotrowska, Robert Bucki
BACKGROUND: Impaired apoptotic pathways in leukemic cells enable them to grow in an uncontrolled way. Moreover, aberrations in the apoptotic pathways are the main factor of leukemic cells drug resistance. METHODS: To assess the presence of potential abnormalities that might promote dysfunction of leukemic cells growth, HPLC system was used to determine sphingosine (SFO), sphinganine (SFA), sphingosine-1-phosphate (S1P) and ceramide (CER) concentration in the blood collected from patients diagnose with acute myeloblastic leukemia (AML; n = 49) and compare to values of control (healthily) group (n = 51)...
December 8, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29167940/the-prognostic-value-of-circulating-myeloblasts-in-patients-with-myelodysplastic-syndromes
#7
Vu H Duong, Eric Padron, Najla H Al Ali, Jeffrey E Lancet, Jeff Hall, Brian Kwok, Ling Zhang, Pearlie K Epling-Burnette, Alan F List, Rami S Komrokji
The prognostic value of peripheral blasts (PB) is not well-studied in patients with myelodysplastic syndromes (MDS). We evaluated the impact of PB on overall survival (OS) and transformation to acute myeloid leukemia (AML) in a large cohort. The MDS database at the Moffitt Cancer Center was retrospectively reviewed to identify patients with ≥ 1% PB (PB-MDS) and those without PB (BM-MDS). We also assessed the correlation between PB and gene mutations. One thousand seven hundred fifty-eight patients were identified, among whom 13% had PB near the time of diagnosis...
November 22, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/29156756/mir-221-regulated-kit-level-by-wild-type-or-leukemia-mutant-runx1-a-determinant-of-single-myeloblast-fate-decisions-that-collectively-drives-or-hinders-granulopoiesis
#8
Stefano Rossetti, Michael J Anauo, Nicoletta Sacchi
RUNX1, a master transcription factor of hematopoiesis, was shown to orchestrate both cell proliferation and differentiation during granulopoiesis by regulating microRNAs (miRs). In this study, taking advantage of the miR-ON reporter system, we monitored first, how the granulocyte colony stimulation factor (GCSF) temporally modulates the concomitant level variation of miR-221 and one of its prototypic targets, the stem cell factor receptor KIT, in single 32D(miR-ON-221) myeloblasts expressing wild type RUNX1...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151503/acute-megakaryoblastic-leukemia-developing-as-donor-cell-leukemia-after-umbilical-cord-blood-transplantation
#9
Yoshitaka Adachi, Yohei Yamaguchi, Ken Sagou, Yusuke Yamaga, Nobuaki Fukushima, Kazutaka Ozeki, Akio Kohno
A 64-year-old man with acute myeloid leukemia underwent umbilical cord blood transplantation (UCBT). After 11 months of complete remission (CR) following UCBT, the bone marrow showed 7.5% myeloblasts. CR was obtained after a single course of azacitidine monotherapy, but the myeloblasts gradually increased in the blood. We made a diagnosis of acute megakaryoblastic leukemia derived from donor cell with a fluorescence in situ hybridization (FISH) analysis of the sex chromosomes and an immunophenotypic analysis...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29102598/dicer1-gene-and-mirna-dysregulation-in-mesenchymal-stem-cells-of-patients-with-myelodysplastic-syndrome-and-acute-myeloblastic-leukemia
#10
Hakan Ozdogan, Bala Gur Dedeoglu, Yasemin Oztemur Islakoglu, Alp Aydos, Sevil Kose, Arzu Atalay, Zeynep Arzu Yegin, Ferit Avcu, Duygu Uckan Cetinkaya, Osman Ilhan
Multipotent mesenchymal stem cells (MSC) are key components of the bone marrow (BM) microenvironment. The contribution of this microenvironment to the pathophysiology of myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) is not well defined. A recent study in mice demonstrated that DICER1 gene deletion in osteoprogenitor cells from the BM microenvironment suppressed osteogenic differentiation and induced MDS and AML-like haematological findings. The present study evaluated the expression profiles of microRNAs (miRNAs) and DICER1 gene in BM-derived MSC of patients with AML (n=12), MDS (n=10) and healthy controls (HC) (n=8)...
October 31, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29061820/comparison-of-in-vitro-antileukemic-activity-of-4-hydroperoxyifosfamide-and-4-hydroperoxycyclophosphamide
#11
COMPARATIVE STUDY
Malgorzata Opydo-Chanek, Katarzyna Śladowska, Kamil Blicharski, Jaromir Mikeš, Peter Fedoročko, Ulf Niemeyer, Lidia Mazur
BACKGROUND/AIM: The oxazaphosphorines, ifosfamide and cyclophosphamide, represent a class of alkylating agents. The aim of the present in vitro study was to compare antileukemic activity of 4-hydroperoxyifosfamide (4-OOH-IF) and 4-hydroperoxycyclophosphamide (4-OOH-CP). MATERIALS AND METHODS: The experiments were performed on MOLT-4 and ML-1 cells. The research was conducted using flow cytometry fluorescein diacetate/propidium iodide (PI), fluorescein-conjugated annexin V/PI, CaspGLOW Red Active Caspase-8 and -9, CellEvent™ Caspase-3/7 Green assays, and tetramethylrhodamine ethyl ester test...
November 2017: Anticancer Research
https://www.readbyqxmd.com/read/28975064/neuroleukemiosis-two-case-reports
#12
Vlad Voin, Shehzad Khalid, Sebastian Shrager, R Shane Tubbs, Robert Greiner, Krishnamoorthy Thamburaj, Elias Rizk
Extramedullary tumors composed of myeloblasts or monoblasts can present in various locations. Patients with a history of acute myeloid leukemia (AML) can present with neuropathic pain and no evidence of relapse of their leukemia. Neuroleukemiosis is a form of extramedullary tumor present in the peripheral nervous systems (PNS) of leukemia patients. We report two AML patients who were in remission and later presented with neurological symptoms due to neuroleukemiosis with negative bone marrow biopsies.
July 31, 2017: Curēus
https://www.readbyqxmd.com/read/28945224/rarf-confers-ra-resistance-by-sequestering-rar-to-the-nucleolus-and-regulating-mcl1-in-leukemia-cells
#13
H Youn, H-K Lee, H-R Sohn, U-H Park, E-J Kim, B Youn, S-J Um
Retinoic acid (RA) has broad clinical applications for the treatment of various cancers, particularly acute promyelocytic leukemia. However, RA-based therapy is limited by relapse in patients associated with RA resistance, the mechanism of which is poorly understood. Here, we suggest a new molecular mechanism of RA resistance by a repressor, named RA resistance factor (RaRF). RaRF suppressed transcriptional activity of the RA receptor (RAR) by directly interacting with and sequestering RAR to the nucleolus in response to RA...
September 25, 2017: Oncogene
https://www.readbyqxmd.com/read/28927153/clinicoradiological-characteristics-management-and-prognosis-of-primary-myeloid-sarcoma-of-the-central-nervous-system-a-report-of-four-cases
#14
Bao Yang, Chenlong Yang, Jingyi Fang, Jun Yang, Yulun Xu
Myeloid sarcoma (MS) is a localized tumor composed of premature precursors of granulocytic cells, which may occur in any organ and most commonly involves the soft tissue and musculoskeletal system. This malignancy may occur in the presence or absence of hematological disorders. Primary MS involving the central nervous system (CNS-MS) is rare, and has only been described in a small number of isolated case reports. The diagnosis of CNS-MS is challenging and strategies for its management are undefined. The present study describes 4 cases of CNS-MS...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28885352/successful-5-azacytidine-treatment-of-myeloid-sarcoma-and-leukemia-cutis-associated-with-myelodysplastic-syndrome-a-case-report-and-literature-review
#15
REVIEW
Takayuki Katagiri, Takashi Ushiki, Masayoshi Masuko, Tomoyuki Tanaka, Shukuko Miyakoshi, Kyoko Fuse, Yasuhiko Shibasaki, Jun Takizawa, Sadao Aoki, Hirohito Sone
RATIONALE: Myeloid sarcoma (MS) and leukemia cutis (LC) are extramedullary tumors comprising myeloid blasts. They can occur de novo or concurrently with hematological disorders, usually acute myeloid leukemia (AML). AML chemotherapy is generally the initial therapy for MS and LC, and hematopoietic stem cell transplantation (HSCT) can be considered as additional therapy. However, treatment for older patients who are unable to continue intensive chemotherapy is not currently standardized...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28860210/safety-and-persistence-of-wt1-specific-t-cell-receptor-gene-transduced-lymphocytes-in-patients-with-aml-and-mds
#16
Isao Tawara, Shinichi Kageyama, Yoshihiro Miyahara, Hiroshi Fujiwara, Tetsuya Nishida, Yoshiki Akatsuka, Hiroaki Ikeda, Kazushi Tanimoto, Seitaro Terakura, Makoto Murata, Yoko Inaguma, Masahiro Masuya, Naoki Inoue, Tomohide Kidokoro, Sachiko Okamoto, Daisuke Tomura, Hideto Chono, Ikuei Nukaya, Junichi Mineno, Tomoki Naoe, Nobuhiko Emi, Masaki Yasukawa, Naoyuki Katayama, Hiroshi Shiku
WT1 is constantly expressed in leukemic cells of acute leukemia and myelodysplastic syndrome (MDS). A T-cell receptor (TCR) that specifically reacts with WT1 peptide in the context of HLA-A*24:02 has been identified. We conducted a first-in human trial of TCR-gene transduced T cell (TCR-T cell) transfer in patients with refractory acute myeloblastic leukemia (AML) and high-risk MDS to investigate the safety and cell kinetics of the T cells. The WT1-specific TCR-gene was transduced to T cells using a retroviral vector encoding siRNAs for endogenous TCR genes...
August 31, 2017: Blood
https://www.readbyqxmd.com/read/28800701/a-new-indole-derivative-decreased-sall4-gene-expression-in-acute-promyelocytic-leukemia-cell-line-nb4
#17
Zahra Sheikhrezaei, Parisa Heydari, Alireza Farsinezhad, Ahmad Fatemi, Soudeh Khanamani Falahati-Pour, Shokoofeh Darakhshan, Mojgan Noroozi Karimabad, Ali Darekordi, Hossein Khorramdelazad, Gholamhossein Hassanshahi
Background: Acute myeloblastic leukemia (AML) is a clonal disorder due to bone marrow failure and uncontrolled proliferation of myeloid lineage. Acute promyelocytic leukemia (APL) is a subtype of AML. Heterocyclic compounds, such as indole, are considered as attractive candidates for cancer therapy, due to their abundance in nature and known biological activity. Sal-like protein (SALL4) is a zinc finger transcription factor involving in the multi-potency of stem cells, in the NB4 cell line...
August 12, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28793875/an-analysis-of-97-previously-diagnosed-de-novo-adult-acute-erythroid-leukemia-patients-following-the-2016-revision-to-world-health-organization-classification
#18
Shaowei Qiu, Erlie Jiang, Hui Wei, Dong Lin, Guangji Zhang, Shuning Wei, Chunlin Zhou, Kaiqi Liu, Ying Wang, Bingcheng Liu, Yuntao Liu, Benfa Gong, Xiaoyuan Gong, Sizhou Feng, Yingchang Mi, Mingzhe Han, Jianxiang Wang
BACKGROUND: The incidence of acute erythroid leukemia subtype (AEL) is rare, accounting for 5% of cases of acute myeloid leukemia (AML), and the outcome is dismal. However, in 2016 revision to the WHO classification, the subcategory of AEL has been removed. Myeloblasts are redefined as the percentage of total marrow cells, not non-erythroid cells. Therefore, the previously diagnosed AEL cases are currently diagnosed as AML or myelodyspalstic syndrome (MDS) according to new criteria. METHODS: We respectively reviewed cases of 97 de novo previously diagnosed AEL and all the patients were diagnosed as AML or MDS according to the new classification scheme, and then the clinical characteristics of these two subtypes were compared...
August 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28731917/the-impact-of-iron-overload-in-acute-leukemia-chronic-inflammation-but-not-the-presence-of-nontransferrin-bound-iron-is-a-determinant-of-oxidative-stress
#19
Lale Olcay, Mustafa Serteser, Murat Kolay, Havva F Balci, Ülkü M Yildirim, Sibel A Tekgündüz, Tuncay Hazirolan, Yunus K Terzi
In the literature, studies on the oxidant effects of nontransferrin bound iron [NTBI (eLPI assay)] during chemotherapy of acute lymphoblastic leukemia and acute myeloblastic leukemia are lacking. We established NTBI and oxidative stress determinants (OSD), iron parameters, high-sensitive C-reactive protein (hs-CRP) levels, liver tests, cumulative chemotherapeutic doses, and transfused blood in 36 children with acute leukemia throughout chemotherapy. These parameters were determined at the beginning and end of chemotherapy blocks (11 time points) and in 20 healthy children using enzyme-linked immunosorbent assay, and colorimetric and fluorometric enzymatic methods...
August 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28666906/craniospinal-irradiation-prior-to-stem-cell-transplant-for-hematologic-malignancies-with-cns-involvement-effectiveness-and-toxicity-after-photon-or-proton-treatment
#20
Jillian R Gunther, Ahmad R Rahman, Wenli Dong, Zeinab Abou Yehia, Partow Kebriaei, Gabriela Rondon, Chelsea C Pinnix, Sarah A Milgrom, Pamela K Allen, Bouthaina S Dabaja, Grace L Smith
PURPOSE/OBJECTIVE(S): Craniospinal irradiation (CSI) improves local control of leukemia/lymphoma with central nervous system (CNS) involvement; however, for adult patients anticipating stem cell transplant (SCT), cumulative treatment toxicity is a major concern. We evaluated toxicities and outcomes for patients receiving proton or photon CSI before SCT. METHODS AND MATERIALS: We identified 37 consecutive leukemia/lymphoma patients with CNS involvement who received CSI before SCT at our institution...
May 10, 2017: Practical Radiation Oncology
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