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https://www.readbyqxmd.com/read/29134817/the-bcr-abl1-negative-myeloproliferative-neoplasms-a-review-of-jak-inhibitors-in-the-therapeutic-armamentarium
#1
Martin Griesshammer, Parvis Sadjadian
The classical BCR-ABL1-negative myeloproliferative neoplasms (MPN) include primary myelofibrosis (PMF), polycythaemia vera (PV) and essential thrombocythaemia (ET). They are characterized by stem cell-derived clonal proliferation, harbour Janus kinase 2 (JAK2), or calreticulin (CALR), or myeloproliferative leukaemia virus oncogene (MPL) driver mutations and exert an over activated JAK-signal transducer and activator of transcription (STAT) pathway. Therefore JAK inhibiting strategies have been successfully investigated in MPN clinical trials...
November 14, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/29134664/a-phase-ii-trial-of-ruxolitinib-in-combination-with-azacytidine-in-myelodysplastic-syndrome-myeloproliferative-neoplasms
#2
Rita Assi, Hagop M Kantarjian, Guillermo Garcia-Manero, Jorge E Cortes, Naveen Pemmaraju, Xuemei Wang, Graciela Nogueras-Gonzalez, Elias Jabbour, Prithviraj Bose, Tapan Kadia, Courtney D Dinardo, Keyur Patel, Carlos Bueso-Ramos, Lingsha Zhou, Sherry Pierce, Romany Gergis, Carla Tuttle, Gautam Borthakur, Zeev Estrov, Rajyalakshmi Luthra, Juliana Hidalgo-Lopez, Srdan Verstovsek, Naval Daver
Ruxolitinib and azacytidine target distinct disease manifestations of myelodysplastic syndrome/myeloproliferative neoplasms (MDS/MPNs). Patients with MDS/MPNs initially received ruxolitinib BID (doses based on platelets count), continuously in 28-day cycles for the first 3 cycles. Azacytidine 25 mg/m(2) (Day 1-5) intravenously or subcutaneously was recommended to be added to each cycle starting cycle 4 and could be increased to 75 mg/m(2) (Days 1-5) for disease control. Azacytidine could be started earlier than cycle 4 and/or at higher dose in patients with rapidly proliferative disease or with elevated blasts...
November 14, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29129488/dna-hypomethylating-agents-as-epigenetic-therapy-before-and-after-allogeneic-hematopoietic-stem-cell-transplantation-in-myelodysplastic-syndromes-and-juvenile-myelomonocytic-leukemia
#3
REVIEW
Christian Flotho, Sebastian Sommer, Michael Lübbert
Myelodysplastic syndrome (MDS) is a clonal bone marrow disorder, typically of older adults, which is characterized by ineffective hematopoiesis, peripheral blood cytopenias and risk of progression to acute myeloid leukemia. Juvenile myelomonocytic leukemia (JMML) is an aggressive myeloproliferative neoplasm occurring in young children. The common denominator of these malignant myeloid disorders is the limited benefit of conventional chemotherapy and a particular responsiveness to epigenetic therapy with the DNA-hypomethylating agents 5-azacytidine (azacitidine) or decitabine...
November 9, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29128551/transplant-decisions-in-patients-with-myelofibrosis-should-mutations-be-the-judge
#4
REVIEW
Rachel B Salit, H Joachim Deeg
The prognosis of myeloproliferative neoplasms (MPN), including primary myelofibrosis (PMF), polycythemia vera (PV; post-PV MF) and essential thrombocythemia (ET; post-EMF) varies considerably, between these disorders as well as within each diagnosis. Molecular studies have identified "driver mutations", in JAK2, MPL1 and CALR, and additional somatic DNA mutations, including ASXL1, EZH2, IDH1/2 and SRSF2, that affect prognosis differentially. Patients with mutations in CALR (type1) have a better outlook than patients with mutations in JAK2 or MPL, while patients without any of the driver mutations (triple negative) have the shortest life expectancy...
November 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29124948/tasigna-nilotinib-in-chronic-myeloid-leukemia%C3%A2-treatment-free-remission-after-nearly-2%C3%A2-years-an-interview-with-adam-mead
#5
Adam Mead
Dr Mead earned his medical degree from the University of Oxford and trained in hematology at St Bartholomew's Hospital and University College London. In 2007, he earned his PhD at UCL, which focused on the analysis of FLT3 mutations in acute myeloid leukemia. He is now Associate Professor of Hematology and MRC Senior Clinical Fellow at the WIMM, University of Oxford. His research group focuses on myeloid diseases and normal blood stem-cell biology. Dr Mead is the lead clinician for myeloproliferative neoplasms (MPN) and chronic myeloid leukemia in the Thames Valley Strategic Clinical Network and is the chief investigator for several chronic myeloid leukemia and MPN clinical trials...
November 10, 2017: Future Oncology
https://www.readbyqxmd.com/read/29121538/therapeutic-options-for-leukemic-transformation-in-patients-with-myeloproliferative-neoplasms
#6
REVIEW
Maliha Khan, Rabbia Siddiqi, Naseema Gangat
Approximately 5-10% of patients with Philadelphia chromosome negative myeloproliferative neoplasms (MPN) comprising of essential thrombocythemia, polycythemia vera and primary myelofibrosis) experience transformation to acute myeloid leukemia (AML, ≥20% blasts). Treatment options for post-MPN AML patients are limited, as conventional approaches like standard chemotherapy, fail to offer long-term benefit. Median survival for secondary AML is ∼2.4 months. Post-MPN AML therefore represents an area of urgent clinical need...
October 27, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29119847/myeloid-lymphoid-neoplasms-with-fgfr1-rearrangement
#7
Paolo Strati, Guilin Tang, Dzifa Y Duose, Saradhi Mallampati, Rajyalakshmi Luthra, Keyur P Patel, Mohammad Hussaini, Abu-Sayeef Mirza, Rami S Komrokji, Stephen Oh, John Mascarenhas, Vesna Najfeld, Vivek Subbiah, Hagop Kantarjian, Guillermo Garcia-Manero, Srdan Verstovsek, Naval Daver
Myeloid/lymphoid neoplasms with FGFR1 rearrangement are a rare entity. We present a multicenter experience of 17 patients with FISH-confirmed FGFR1 rearrangement. The clinical presentation at diagnosis included myeloproliferative neoplasm (MPN) in 4 (24%) patients, acute leukemia (AL) in 7 (41%), and concomitant MPN with AL in 6 (35%). The two most frequently observed cytogenetic abnormalities were t(8;13)(p11.2;q12)(partner gene ZMYM2) and t(8;22)(p11.2; q11.2)(BCR). Seventy-eight percent of tested patients had a RUNX1 mutation, of whom all had AL...
November 9, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29115897/next-generation-sequencing-discriminates-myelodysplastic-myeloproliferative-neoplasms-from-paraneoplastic-leukemoid-reaction-in-cancer-patients-with-hyperleukocytosis
#8
Riwa Sakr, Aline Renneville, Veronique Saada, Sophie Cotteret, Jean-Edouard Martin, Nathalie Droin, Dorothée Selimoglu-Buet, Benjamin Besse, Antoine Hollebecque, Christophe Marzac, Florence Pasquier, Jean-Baptiste Micol, Stéphane De Botton, Olivier Mir, Eric Solary, Christophe Willekens
No abstract text is available yet for this article.
November 8, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29108292/azacitidine-or-intensive-chemotherapy-for-older-patients-with-secondary-or-therapy-related-acute-myeloid-leukemia
#9
Pierre-Yves Dumas, Sarah Bertoli, Emilie Bérard, Clémence Médiavilla, Edwige Yon, Suzanne Tavitian, Thibaut Leguay, Françoise Huguet, Edouard Forcade, Noël Milpied, Audrey Sarry, Mathieu Sauvezie, Pierre Bories, Arnaud Pigneux, Christian Récher
The treatment of older patients with acute myeloid leukemia that is secondary to previous myelodysplastic syndrome, myeloproliferative neoplasm, or prior cytotoxic exposure remains unsatisfactory. We compared 92 and 107 patients treated, respectively, with intensive chemotherapy or azacitidine within two centres. Diagnoses were 37.5% post-myelodysplastic syndrome, 17.4% post-myeloproliferative neoplasia, and 45.1% therapy-related acute myeloid leukemia. Patients treated by chemotherapy had less adverse cytogenetics, higher white blood-cell counts, and were younger: the latter two being independent factors entered into the multivariate analyses...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29107667/fgfr1-translocation-with-concurrent-myeloproliferative-neoplasm-systemic-mastocytosis-and-lymphoblastic-lymphoma-a-case-report
#10
Koping Chang, Jia-Hau Liu, Shan-Chi Yu, Chung-Wu Lin
FGFR1 translocation may cause myeloid or lymphoid neoplasm but rarely systemic mastocytosis (SM). Conversely, SM is associated with myeloproliferative neoplasm (MPN), but rarely lymphoblastic lymphoma (LBL) or FGFR1 translocation. We report the first case of FGFR1 translocation in a patient with concurrent LBL, MPN, and SM. A 21-year-old male patient presented with diffuse lymphadenopathies and leukocytosis. TdT(+)/cytoCD3(+)/CD79a(weakly+) LBL was identified in the lymph node. Bone marrow had MPN, SM, and TdT(+)/CD79a(+)/cytoCD3(weakly+) LBL...
October 28, 2017: Human Pathology
https://www.readbyqxmd.com/read/29107666/jak2-mutated-langerhans-cell-histiocytosis-associated-with-primary-myelofibrosis-treated-with-ruxolitinib
#11
Arturo Bonometti, Filippo Bagnoli, Daniele Fanoni, Luigia Venegoni, Laura Corti, Paola Bianchi, Elena Maria Elli, Giuseppe Isimbaldi, Vincenzo L'Imperio, Gianluca Nazzaro, Emanuela Passoni, Emilio Berti
The pathogenesis and cellular origin of Langerhans cell histiocytosis (LCH) are debated. Recently, mutations on MAPK and PI3K pathways have been linked to disrupted cell proliferation in LCH. Janus Kinase 2 (JAK2) mutations play the same role in Philadelphia-negative chronic myeloproliferative neoplasms. We describe the case of a patient affected by JAK2-positive Primary Myelofibrosis (PMF) who developed a clonally related LCH while in treatment with Ruxolitinib. JAK-inhibitors are well known to affect function and differentiation of different hematological lineages, including mononuclear phagocytes precursors...
October 28, 2017: Human Pathology
https://www.readbyqxmd.com/read/29105027/rare-cancers-and-social-media-analysis-of-twitter-metrics-in-the-first-2%C3%A2-years-of-a-rare-disease-community-for-myeloproliferative-neoplasms-on-social-media-mpnsm
#12
REVIEW
Naveen Pemmaraju, Audun Utengen, Vikas Gupta, Jean-Jacques Kiladjian, Ruben Mesa, Michael A Thompson
PURPOSE OF REVIEW: The use of social media has now become a standard 13 means of communication for many individuals worldwide. 14 The use of one specific form of social media, Twitter, has 15 increased among healthcare providers, both as a means of 16 information gathering and as a conduit for original content 17 creation. Recently, major efforts by users have been put for- 18 ward to help streamline the unprecedented amount of infor- 19 mation that can be found on Twitter. These efforts have led to 20 the creation of diseasespecific hashtag (#) medical communi- 21 ties and have greatly enhanced the ability to understand and 22 better categorize the available data on Twitter...
November 6, 2017: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/29104287/risk-of-developing-chronic-myeloid-neoplasms-in-well-differentiated-thyroid-cancer-patients-treated-with-radioactive-iodine
#13
R J Molenaar, C Pleyer, T Radivoyevitch, S Sidana, A Godley, A S Advani, A T Gerds, H E Carraway, M Kalaycio, A Nazha, D Adelstein, C Nasr, D Angelini, J P Maciejewski, N Majhail, M A Sekeres, S Mukherjee
Exposure to ionizing radiation increases the risk of myelodysplastic syndromes (MDS) and myeloproliferative neoplasms (MPN), but such risks are not known in well-differentiated thyroid cancer (WDTC) patients treated with radioactive iodine (RAI). A total of 148 215 WDTC patients were identified from Surveillance Epidemiology and End Results (SEER) registries between 1973 and 2014, of whom 54% underwent definitive thyroidectomy and 46% received adjuvant RAI. With a median follow-up of 6.6 years, 77 and 66 WDTC patients developed MDS and MPN, respectively...
November 6, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29100304/germline-variations-at-jak2-tert-hbs1l-myb-and-mecom-and-the-risk-of-myeloproliferative-neoplasms-in-taiwanese-population
#14
Yi-Hao Chiang, Yu-Cheng Chang, Huan-Chau Lin, Ling Huang, Chun-Chia Cheng, Wei-Ting Wang, Hung-I Cheng, Nai-Wen Su, Caleb Gon-Shen Chen, Johnson Lin, Yi-Fang Chang, Ming-Chih Chang, Ruey-Kuen Hsieh, Wen-Chien Chou, Ken-Hong Lim, Yuan-Yeh Kuo
Germline variations at JAK2, TERT, HBS1L-MYB and MECOM have been found to associate with myeloproliferative neoplasms (MPNs) in European populations. Whether these germline variations are associated with MPNs in Taiwanese population is obscure. Here we aimed to evaluate the association of five germline variations (JAK2 46/1 haplotype tagged by rs12343867, JAK2 intron 8 rs12339666, TERT rs2736100, HBS1L-MYB rs9376092 and MECOM rs2201862) and the risk of MPNs in Taiwanese population. A total of 178 MPN patients (109 essential thrombocythemia, 54 polycythemia vera and 15 primary myelofibrosis) were enrolled into this study...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29096334/symptom-burden-profile-in-myelofibrosis-patients-with-thrombocytopenia-lessons-and-unmet-needs
#15
Allison H Scotch, Heidi Kosiorek, Robyn Scherber, Amylou C Dueck, Stefanie Slot, Sonja Zweegman, Peter A W Te Boekhorst, Suzan Commandeur, Harry Schouten, Federico Sackmann, Ana Kerguelen Fuentes, Dolores Hernández-Maraver, Heike L Pahl, Martin Griesshammer, Frank Stegelmann, Konstanze Döhner, Thomas Lehmann, Karin Bonatz, Andreas Reiter, Francoise Boyer, Gabriel Etienne, Jean-Christophe Ianotto, Dana Ranta, Lydia Roy, Jean-Yves Cahn, Claire N Harrison, Deepti Radia, Pablo Muxi, Norman Maldonado, Carlos Besses, Francisco Cervantes, Peter L Johansson, Tiziano Barbui, Giovanni Barosi, Alessandro M Vannucchi, Chiara Paoli, Francesco Passamonti, Bjorn Andreasson, Maria L Ferrari, Alessandro Rambaldi, Jan Samuelsson, Gunnar Birgegard, Zhijian Xiao, Zefeng Xu, Yue Zhang, Xiujuan Sun, Junqing Xu, Jean-Jacques Kiladjian, Peihong Zhang, Robert Peter Gale, Ruben A Mesa, Holly L Geyer
Myelofibrosis is a myeloproliferative neoplasm associated with progressive cytopenias and high symptom burden. MF patients with thrombocytopenia have poor prognosis but the presence of thrombocytopenia frequently precludes the use of JAK2 inhibitors. In this study, we assessed quality of life and symptom burden in 418 MF patients with (n=89) and without (n=329) thrombocytopenia using prospective data from the MPN-QOL study group database, including the Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) and Total Symptom Score (MPN10)...
October 14, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29090588/decreased-turnover-aspirin-resistance-by-bidaily-aspirin-intake-and-efficient-cytoreduction-in-myeloproliferative-neoplasms
#16
Andréas Perrier-Cornet, Jean-Christophe Ianotto, Fanny Mingant, Maëla Perrot, Eric Lippert, Hubert Galinat
Essential thrombocythemia (ET) and polycythemia vera (PV) are myeloproliferative neoplasms (MPN) with an increased risk of arterial and venous thrombosis. Aspirin is recommended to reduce this risk, but resistance to antiplatelet therapy seems to hamper its efficacy in some patients. We have previously shown that multiple electrode aggregometry (MEA) was a valuable tool to assess aspirin resistance in MPN. In this study, MEA was used to assess the reduction in aspirin resistance after bi-daily (BID) aspirin intake or cytoreduction...
November 1, 2017: Platelets
https://www.readbyqxmd.com/read/29082853/cancer-gene-profiling-in-non-small-cell-lung-cancers-reveals-activating-mutations-in-jak2-and-jak3-with-therapeutic-implications
#17
Shuyu D Li, Meng Ma, Hui Li, Aneta Waluszko, Tatyana Sidorenko, Eric E Schadt, David Y Zhang, Rong Chen, Fei Ye
BACKGROUND: Next-generation sequencing (NGS) of cancer gene panels are widely applied to enable personalized cancer therapy and to identify novel oncogenic mutations. METHODS: We performed targeted NGS on 932 clinical cases of non-small-cell lung cancers (NSCLCs) using the Ion AmpliSeq™ Cancer Hotspot panel v2 assay. RESULTS: Actionable mutations were identified in 65% of the cases with available targeted therapeutic options, including 26% of the patients with mutations in National Comprehensive Cancer Network (NCCN) guideline genes...
October 30, 2017: Genome Medicine
https://www.readbyqxmd.com/read/29076133/effects-of-vascular-endothelial-growth-factors-and-their-receptors-on-megakaryocytes-and-platelets-and-related-diseases
#18
REVIEW
Jin-Gang Yang, Li-Li Wang, Dong-Chu Ma
It is well known that vascular endothelial growth factors (VEGFs) and their receptors (vascular endothelial growth factor receptors, VEGFRs) are expressed in different tissues, and VEGF-VEGFR loops regulate a wide range of responses, including metabolic homeostasis, cell proliferation, migration and tubuleogenesis. As ligands, VEGFs act on three structurally related VEGFRs (VEGFR1, VEGFR2 and VEGFR3 [also termed FLT1, KDR and FLT4, respectively]) that deliver downstream signals. Haematopoietic stem cells (HSCs), megakaryocytic cell lines, cultured megakaryocytes (MKs), primary MKs and abnormal MKs express and secrete VEGFs...
October 26, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29076129/the-mosaicc-study-assessing-feasibility-for-biological-sample-collection-in-epidemiology-studies-and-comparison-of-dna-yields-from-saliva-and-whole-blood-samples
#19
Glen James, Mary Frances McMullin, Andrew S Duncombe, Mike Clarke, Lesley A Anderson
Biological sample collection is becoming more common in epidemiology research to obtain DNA for genetic analysis. There are many different DNA collection methods but little evidence on their relative effectiveness. Therefore, we took the opportunity of a prospective case-control study in myeloproliferative neoplasms (MPNs) to compare DNA yield from 8.5 mL PAXgene tubes for whole blood collection versus 2 mL Oragene OG-500 saliva collection kits. MPNs include polycythaemia vera, essential thrombocythaemia, and primary myelofibrosis...
October 27, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/29075489/intravascular-large-b-cell-lymphoma-associated-with-myelofibrosis-a-case-report
#20
Jong Gwon Choi, Hwan Hwi Cho, Sang Rok Kang, Se Min Jang, Eun Hyung Yoo, Hyun Jung Cho, Sun Moon Kim, Do Yeun Cho
Myelofibrosis (MF) is often accompanied by chronic myeloid leukemia, hairy cell leukemia, or certain primary myeloproliferative neoplasms, but is rarely associated with lymphoid neoplasms. We herein describe a case of intravascular large B-cell lymphoma (IVLBCL) with MF. IVLBCL is a rare, aggressive type of extranodal B-cell lymphoma, defined by proliferation of lymphomatous cells within small-to medium-sized vessels. A 60-year-old woman was admitted to the hospital with anemia, thrombocytopenia and fever. Bone marrow biopsy findings included trilineage hematopoiesis, increased numbers of immature cells, markedly abnormal and enlarged megakaryocytes, and diffuse fibrosis in multiple focal areas throughout the entire bone marrow space...
November 2017: Molecular and Clinical Oncology
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