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Chronic myeloproliferative neoplasm

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https://www.readbyqxmd.com/read/29455651/targeting-few-to-help-hundreds-jak-mapk-and-rock-pathways-as-druggable-targets-in-atypical-chronic-myeloid-leukemia
#1
REVIEW
Stefania Rocca, Giovanna Carrà, Pietro Poggio, Alessandro Morotti, Mara Brancaccio
Atypical Chronic Myeloid Leukemia (aCML) is a myeloproliferative neoplasm characterized by neutrophilic leukocytosis and dysgranulopoiesis. From a genetic point of view, aCML shows a heterogeneous mutational landscape with mutations affecting signal transduction proteins but also broad genetic modifiers and chromatin remodelers, making difficult to understand the molecular mechanisms causing the onset of the disease. The JAK-STAT, MAPK and ROCK pathways are known to be responsible for myeloproliferation in physiological conditions and to be aberrantly activated in myeloproliferative diseases...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29454474/cardiovascular-pulmonary-and-metabolic-toxicities-complicating-tyrosine-kinase-inhibitor-therapy-in-chronic-myeloid-leukemia-strategies-for-monitoring-detecting-and-managing
#2
REVIEW
Bruno C Medeiros, Jennifer Possick, Michael Fradley
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm, the incidence of which increases with age. Tyrosine kinase inhibitors (TKIs) are the mainstay of CML treatment, including imatinib, nilotinib, dasatinib, bosutinib, and ponatinib. Beyond matching patient disease profiles with TKI specificity, differences in the efficacy and toxicity profiles and a patient's comorbid risk factors should be considered when selecting the most appropriate agent. Our objectives are to review the incidence and severity of cardiovascular, metabolic, and pulmonary disorders associated with these TKIs, highlighting differences in adverse event profiles, suggested risk-mitigation strategies, and guidance for TKI selection in different settings...
February 3, 2018: Blood Reviews
https://www.readbyqxmd.com/read/29440636/chronic-neutrophilic-leukemia-new-science-and-new-diagnostic-criteria
#3
REVIEW
Natasha Szuber, Ayalew Tefferi
Chronic neutrophilic leukemia (CNL) is a distinct myeloproliferative neoplasm defined by persistent, predominantly mature neutrophil proliferation, marrow granulocyte hyperplasia, and frequent splenomegaly. The seminal discovery of oncogenic driver mutations in CSF3R in the majority of patients with CNL in 2013 generated a new scientific framework for this disease as it deepened our understanding of its molecular pathogenesis, provided a biomarker for diagnosis, and rationalized management using novel targeted therapies...
February 13, 2018: Blood Cancer Journal
https://www.readbyqxmd.com/read/29426921/the-2016-who-classification-and-diagnostic-criteria-for-myeloproliferative-neoplasms-document-summary-and-in-depth-discussion
#4
REVIEW
Tiziano Barbui, Jürgen Thiele, Heinz Gisslinger, Hans Michael Kvasnicka, Alessandro M Vannucchi, Paola Guglielmelli, Attilio Orazi, Ayalew Tefferi
The new edition of the 2016 World Health Organization (WHO) classification system for tumors of the hematopoietic and lymphoid tissues was published in September 2017. Under the category of myeloproliferative neoplasms (MPNs), the revised document includes seven subcategories: chronic myeloid leukemia, chronic neutrophilic leukemia, polycythemia vera (PV), primary myelofibrosis (PMF), essential thrombocythemia (ET), chronic eosinophilic leukemia-not otherwise specified and MPN, unclassifiable (MPN-U); of note, mastocytosis is no longer classified under the MPN category...
February 9, 2018: Blood Cancer Journal
https://www.readbyqxmd.com/read/29423961/pruritic-arthropod-bite-like-papules-in-t-cell-large-granular-lymphocytic-leukaemia-and-chronic-myelomonocytic-leukaemia
#5
D J Lewis, R N Miranda, C W Oh, T Hinojosa, L J Medeiros, J L Curry, M T Tetzlaff, C A Torres-Cabala, P Nagarajan, F Ravandi-Kashani, M Duvic
T-cell large granular lymphocytic leukaemia (T-LGLL) is a clinically indolent mature T-cell neoplasm characterized by a monoclonal population of CD3+ CD8+ cytotoxic T cells, which usually presents as neutropenia, anaemia and thrombocytopenia. Chronic myelomonocytic leukaemia (CMML) is a clonal haematopoietic disorder with features of both a myeloproliferative neoplasm and myelodysplastic syndrome (MDS). Patients with CMML exhibit a persistent peripheral blood monocytosis in addition to myelodysplastic features...
February 9, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29411417/chronic-myeloid-leukemia-2018-update-on-diagnosis-therapy-and-monitoring
#6
Elias Jabbour, Hagop Kantarjian
DISEASE OVERVIEW: Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm with an incidence of 1-2 cases per 100 000 adults. It accounts for approximately 15% of newly diagnosed cases of leukemia in adults. DIAGNOSIS: CML is characterized by a balanced genetic translocation, t(9;22)(q34;q11.2), involving a fusion of the Abelson gene (ABL1) from chromosome 9q34 with the breakpoint cluster region (BCR) gene on chromosome 22q11.2. This rearrangement is known as the Philadelphia chromosome...
March 2018: American Journal of Hematology
https://www.readbyqxmd.com/read/29387948/expression-of-hippo-signaling-pathway-and-aurora-kinase-genes-in-chronic-myeloid-leukemia
#7
Ana Paula Zambuzi Cardoso Marsola, Belinda Pinto Simões, Leonardo Carvalho Palma, Maria Gabriela Berzoti-Coelho, Sandra Mara Burin, Fabíola Attié de Castro
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm resulting from clonal expansion of hematopoietic stem cells positive for the Philadelphia chromosome. The CML pathogenesis is associated with expression of the BCR-ABL1 oncogene, which encodes the Bcr-Abl protein with tyrosine kinase activity, promoting the leukemic cell exacerbated myeloproliferation and resistance to apoptosis. CML patients are usually treated with tyrosine kinase inhibitors (TKI), but some of them acquire resistance or are refractory to TKI...
January 31, 2018: Medical Oncology
https://www.readbyqxmd.com/read/29378171/discriminating-myelodysplastic-syndrome-and-other-myeloid-malignancies-from-non-clonal-disorders-by-multiparametric-analysis-of-automated-cell-data
#8
Seon Young Kim, Yumi Park, Hyunjin Kim, Jimyung Kim, Gye Cheol Kwon, Sun Hoe Koo
BACKGROUND: We investigated the usefulness of novel complete blood count (CBC) data for discriminating myeloid malignancies from non-clonal CBC abnormalities. METHODS: Data were obtained during routine CBC tests of 119 samples from 37 myelodysplastic syndrome (MDS) patients, 92 samples from 45 myeloproliferative neoplasm (MPN) patients, and 15 samples from 11 chronic myelogenous leukemia (CML) patients using a DxH800 (Beckman Coulter). Data obtained from patients with hypocellular bone marrow and from those with other non-clonal diseases with CBC abnormalities were included in the comparisons...
January 26, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29377227/lymphoproliferative-disorders-in-patients-with-chronic-myeloproliferative-neoplasms-a-systematic-review
#9
Monia Marchetti, Alessandra Carobbio, Enrica Capitoni, Tiziano Barbui
Patients with a Ph-negative myeloproliferative neoplasm (MPN) may harbor or develop lymphoproliferative disorders (LPD), however, the clinical and molecular determinants of MPN and LPD co-occurrence are still uncertain. In order to systematically pool the available knowledge, we conducted a scoping review of literature published since January 2005 and analyzed single-patient clinical data from 50 papers reporting 214 individuals harboring both MPN and LPD. Patients had been diagnosed essential thrombocythemia (44%), polycythemia vera (29%) or myelofibrosis (23%) at a median age of 67 years (26-94): half of them incurred a LPD after a median of 72 months from MPN diagnosis, while in 20% the LPD diagnosis was antecedent or synchronous...
January 27, 2018: American Journal of Hematology
https://www.readbyqxmd.com/read/29369421/genetic-variation-in-il28b-ifnl3-and-response-to-interferon-alpha-treatment-in-myeloproliferative-neoplasms
#10
Marie Lindgren, Jan Samuelsson, Lars Nilsson, Håvar Knutsen, Waleed Ghanima, Johan Westin, Peter L Johansson, Björn Andréasson
OBJECTIVE: In myeloproliferative neoplasms (MPN) interferon-alpha (IFN-α) is an effective treatment with disease-modifying properties but currently with no clear predictors of treatment outcome. Recent genome-wide association studies in chronic hepatitis C, have found a strong influence of genetic polymorphism near the IL28B (IFNL3) gene on response to IFN-α treatment. In this study we sought to evaluate the prognostic impact of IL28B rs12979860, rs8099917 and rs12980275 on IFN-α treatment response in myeloproliferative neoplasms...
January 25, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29327708/myeloproliferative-neoplasms-with-concurrent-bcr-abl1-translocation-and-jak2-v617f-mutation-a-multi-institutional-study-from-the-bone-marrow-pathology-group
#11
Craig R Soderquist, Mark D Ewalt, David R Czuchlewski, Julia T Geyer, Heesun J Rogers, Eric D Hsi, Sa A Wang, Carlos E Bueso-Ramos, Attilio Orazi, Daniel A Arber, Elizabeth O Hexner, Daria V Babushok, Adam Bagg
Myeloproliferative neoplasms arise from hematopoietic stem cells with somatically altered tyrosine kinase signaling. Classification of myeloproliferative neoplasms is based on hematologic, histopathologic and molecular characteristics including the presence of the BCR-ABL1 and JAK2 V617F. Although thought to be mutually exclusive, a number of cases with co-occurring BCR-ABL1 and JAK2 V617F have been identified. To characterize the clinicopathologic features of myeloproliferative neoplasms with concomitant BCR-ABL1 and JAK2 V617F, and define the frequency of co-occurrence, we conducted a retrospective multi-institutional study...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29288910/3q26-evi1-rearrangement-in-myelodysplastic-myeloproliferative-neoplasms-an-early-event-associated-with-a-poor-prognosis
#12
Zhihong Hu, Shimin Hu, Changsheng Ji, Zhenya Tang, Beenu Thakral, Sanam Loghavi, L Jeffrey Medeiros, Wei Wang
3q26.2/EVI1 rearrangements resulting in EVI1 overexpression play an important role in leukemogenesis and are associated with treatment resistance and a poorer prognosis in patients with acute myeloid leukemia, myelodysplastic syndrome, chronic myeloid leukemia and BCR-ABL negative myeloproliferative neoplasms. In this study, we aim to explore the clinicopathological features of myelodysplastic/myeloproliferative (MDS/MPN) neoplasms with 3q26.2/EVI1 rearrangements and determine the potential impact of these cytogenetic abnormalities on treatment response and survival...
December 23, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29285598/diagnosis-of-budd-chiari-syndrome
#13
Morgane Van Wettere, Onorina Bruno, Pierre-Emmanuel Rautou, Valérie Vilgrain, Maxime Ronot
Budd-Chiari syndrome (BCS) is defined by clinical and laboratory signs associated with partial or complete impairment of hepatic venous drainage in the absence of right heart failure or constrictive pericarditis. Primary BCS is the most frequent type and is a complication of hypercoagulable states, in particular myeloproliferative neoplasms. Secondary BCS involves tumor invasion or extrinsic compression. Most patients present with chronic BCS including a non-cirrhotic, dysmorphic, chronic liver disease with various degrees of fibrosis deposition...
December 28, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29273914/myeloid-neoplasms-with-t-12-22-p13-q12-mn1-evt6-a-systematic-review-of-12-cases
#14
Haigang Shao, Jiannong Cen, Suning Chen, Huiying Qiu, Jinlan Pan
t(12;22)(p13;q12) is a rare but recurrent chromosomal abnormality involving the ETS transcription factor ETV6 and meningioma 1 (MN1) genes. In this study, we analyzed the clinical, cytogenetic, and molecular features of five new patients with the t(12;22)/MN1-EVT6 who presented with acute myeloid leukemia or chronic myelomonocytic leukemia. We subsequently reviewed the literature and identified seven additional cases reported with t(12;22)/MN1-EVT6. Our data suggest that neoplasms carrying the t(12;22)/MN1-ETV6, although rare, can commonly present as myeloid neoplasms at the initial diagnosis, including acute myeloid leukemia (n = 8), myelodysplastic syndrome (n = 2), and myelodysplastic/myeloproliferative neoplasms (n = 2)...
December 22, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/29251529/infectious-complications-in-patients-on-treatment-with-ruxolitinib-case-report-and-review-of-the-literature
#15
Maria Veronica Dioverti, Omar M Abu Saleh, Aaron J Tande
BACKGROUND: Primary myelofibrosis is a chronic myeloproliferative neoplasm that may cause debilitating symptoms, which can be improved with the use of Ruxolitinib, a Janus kinase 2 inhibitor. However, this agent has significant immunomodulatory effects which may increase the risk for infections. METHODS: We searched the literature and our institutional electronic medical record for reported cases of infections in adult patients on ruxolitinib treatment. RESULTS: We found 28 cases in our literature search and 4 cases from our Institution for a total of 32 cases...
December 18, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/29239838/mediator-kinase-phosphorylation-of-stat1-s727-promotes-growth-of-neoplasms-with-jak-stat-activation
#16
Ioana I Nitulescu, Sara C Meyer, Qiang Jeremy Wen, John D Crispino, Madeleine E Lemieux, Ross L Levine, Henry E Pelish, Matthew D Shair
Constitutive JAK-STAT signaling drives the proliferation of most myeloproliferative neoplasms (MPN) and a subset of acute myeloid leukemia (AML), but persistence emerges with chronic exposure to JAK inhibitors. MPN and post-MPN AML are dependent on tyrosine phosphorylation of STATs, but the role of serine STAT1 phosphorylation remains unclear. We previously demonstrated that Mediator kinase inhibitor cortistatin A (CA) reduced proliferation of JAK2-mutant AML in vitro and in vivo and also suppressed CDK8-dependent phosphorylation of STAT1 at serine 727...
December 2017: EBioMedicine
https://www.readbyqxmd.com/read/29228125/myeloid-neoplasms-following-solid-organ-transplantation-clinicopathologic-studies-of-23-cases
#17
Bin Wu, Kimberly Ingersoll, Rachel Jug, Lian-He Yang, Catherine Luedke, Amanda Lo, Pu Su, Xin Liu, Catherine Rehder, Jerald Gong, Chuanyi Mark Lu, Endi Wang
Objectives: Myeloid neoplasms (MNs) after solid organ transplant are rare, and their clinicopathologic features have not been well characterized. Methods: We retrospectively analyzed 23 such cases. Results: The ages ranged from 2 to 76 years, with a median of 59 years at the diagnosis. The median interval between the transplant and diagnosis was 56 months (range, 8-384 months). The transplanted organs included liver in five, kidney in six, lung in five, heart in six, and heart/lung in one case(s)...
December 7, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29225884/setbp1-mutations-as-a-biomarker-for-myelodysplasia-myeloproliferative-neoplasm-overlap-syndrome
#18
REVIEW
Katherine Linder, Chaitanya Iragavarapu, Delong Liu
Myelodysplasia (MDS) /myeloproliferative neoplasm (MPN) overlap syndrome has been described since the 2001 WHO classification as disorders that have both proliferative and dysplastic changes simultaneously. Specific disorders include chronic myelomonocytic leukemia (CMML), juvenile myelomonocytic leukemia (JMML), BCR-ABL negative atypical chronic myeloid leukemia (aCML) and unclassifiable MDS/MPN (MPN/MDS-U). Recurrent gene mutations in these conditions have been described. Among them, SETBP1 mutations have been identified in up to 32% of aCML, 24% of JMML, 18% of CMML and 10% of MDS/MPN-U patients...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29225675/pregnancy-and-myeloproliferative-neoplasms-a-retrospective-monocentric-cohort
#19
Mathieu Puyade, Emilie Cayssials, Fabrice Pierre, Olivier Pourrat
Background: The most frequent myeloproliferative neoplasms are essential thrombocythemia and chronic myelogenous leukemia, which usually manifests with thrombocytosis. Only essential thrombocythemia is associated with morbidity during pregnancy (recurrent miscarriages, intrauterine fetal death, small for gestational age and preeclampsia). The aim of this paper is to describe outcomes of pregnancy in women with myeloproliferative neoplasms seen at a single academic institution. Methods: Data were collected retrospectively from 2002 to 2015...
December 2017: Obstetric Medicine
https://www.readbyqxmd.com/read/29222296/what-are-the-current-treatment-approaches-for-patients-with-polycythemia-vera-and-essential-thrombocythemia
#20
REVIEW
Alessandro M Vannucchi, Paola Guglielmelli
Polycythemia vera (PV) and essential thrombocythemia (ET) are chronic myeloproliferative neoplasms that are characterized by thrombohemorrhagic complications, symptom burden, and impaired survival mainly due to thrombosis, progression to myelofibrosis, and transformation to acute leukemia. In this manuscript, we will review the most recent changes in diagnostic criteria, the improvements in risk stratification, and the "state of the art" in the daily management of these disorders. The role of conventional therapies and novel agents, interferon α and the JAK2 inhibitor ruxolitinib, is critically discussed based on the results of a few basic randomized clinical studies...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
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