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myeloproliferative syndromes

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https://www.readbyqxmd.com/read/28415666/azacitidine-or-intensive-chemotherapy-for-older-patients-with-secondary-or-therapy-related-acute-myeloid-leukemia
#1
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...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28408397/the-il-31-il-31-receptor-axis-general-features-and-role-in-tumor-microenvironment
#2
REVIEW
Elisa Ferretti, Anna Corcione, Vito Pistoia
IL-31 is a recently identified cytokine with a well-defined role in the pathogenesis of pruritus. IL-31, whose production is induced by IL-4 and IL-33, binds a heterodimeric receptor (R) composed of the exclusive IL-31RA chain and the shared oncostatin M R. Signaling through the IL-31R involves the MAPK, PI3K/AKT and Jak/STAT pathways. Different variants and isoforms of IL-31RA with different signaling activities have been identified. IL-31 is produced predominantly by circulating Th2 lymphocytes and skin-homing CLA(+)CD45RO(+) T cells...
April 13, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28396661/phenotype-of-nk-like-cd8-t-cells-with-innate-features-in-humans-and-their-relevance-in-cancer-diseases
#3
Alice Barbarin, Emilie Cayssials, Florence Jacomet, Nicolas Gonzalo Nunez, Sara Basbous, Lucie Lefèvre, Myriam Abdallah, Nathalie Piccirilli, Benjamin Morin, Vincent Lavoue, Véronique Catros, Eliane Piaggio, André Herbelin, Jean-Marc Gombert
Unconventional T cells are defined by their capacity to respond to signals other than the well-known complex of peptides and major histocompatibility complex proteins. Among the burgeoning family of unconventional T cells, innate-like CD8(+) T cells in the mouse were discovered in the early 2000s. This subset of CD8(+) T cells bears a memory phenotype without having encountered a foreign antigen and can respond to innate-like IL-12 + IL-18 stimulation. Although the concept of innate memory CD8(+) T cells is now well established in mice, whether an equivalent memory NK-like T-cell population exists in humans remains under debate...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28374041/imatinib-treatment-of-lymphomatoid-papulosis-associated-with-myeloproliferative-hypereosino-philic-syndrome-presenting-the-fip1l1-pdgfra-fusion-gene
#4
Pablo García-Martínez, Dolors Sitjas, Enric Llistosella, Blanca Espinet, María Rodríguez-Rivera, Maria Hernandez-Muñoz, Fernando Gallardo, Ramon M Pujol
is missing (Short communication).
April 4, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28372919/hematologic-malignancies-are-associated-with-adverse-perioperative-outcomes-after-total-hip-arthroplasty
#5
Jared M Newman, Jaiben George, W Trevor North, Suparna M Navale, Alison K Klika, Wael K Barsoum, Carlos A Higuera
BACKGROUND: Advancements in treating hematologic malignancies have improved survival, and these patients may be part of the growing population undergoing total hip arthroplasty (THA). Therefore, the purpose of this study was to evaluate the perioperative outcomes of THA in patients with hematologic malignancies. METHODS: The Nationwide Inpatient Sample identified patients who underwent THA from 2000 to 2011 (n = 2,864,412). Patients diagnosed with any hematologic malignancy (n = 18,012) were further stratified into Hodgkin disease (n = 786), non-Hodgkin lymphoma (n = 5062), plasma cell dyscrasias (n = 2067), leukemia (n = 5644), myeloproliferative neoplasms (n = 3552), and myelodysplastic syndromes (n = 1082)...
March 11, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28355402/budd-chiari-syndrome-secondary-to-catheter-associated-inferior-vena-cava-thrombosis
#6
Gustavo N Araujo, Luciane M Restelatto, Carlos A Prompt, Cristina Karohl
INTRODUCTION: Patients with chronic kidney disease (CKD) are at increased risk for thrombotic complications. The use of central venous catheters as dialysis vascular access additionally increases this risk. We describe the first case of Budd-Chiari syndrome (BCS) secondary to central venous catheter misplacement in a patient with CKD. CASE REPORT: A 30-year-old female patient with HIV/AIDS and CKD on hemodialysis was admitted to the emergency room for complaints of fever, prostration, and headache in the last six days...
March 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/28338652/3q26-2-evi1-rearrangement-is-associated-with-poor-prognosis-in-classical-philadelphia-chromosome-negative-myeloproliferative-neoplasms
#7
Zhihong Hu, L Jeffrey Medeiros, Wei Wang, Zi Chen, Guilin Tang, Parsa Hodjat, Su Yang, Lianghua Fang, Yan Li, Srdan Verstovsek, Shimin Hu
Classical Philadelphia chromosome-negative myeloproliferative neoplasms are a group of closely related myeloid disorders with different histologic features and clinical presentations at an early stage, but all later develop into a similar fibrotic stage with variable risk of acute transformation. The significance of 3q26.2/EVI1 rearrangement has been well recognized in acute myeloid leukemia, myelodysplastic syndrome, and chronic myeloid leukemia. However, the clinical importance of 3q26.2/EVI1 rearrangement in classical Philadelphia chromosome-negative myeloproliferative neoplasms is unknown...
March 24, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28331226/the-histone-deacetylase-inhibitor-givinostat-itf2357-exhibits-potent-anti-tumor-activity-against-crlf2-rearranged-bcp-all
#8
A M Savino, J Sarno, L Trentin, M Vieri, G Fazio, M Bardini, C Bugarin, G Fossati, K Davis, G Gaipa, S Izraeli, L H Meyer, G P Nolan, A Biondi, G Te Kronnie, C Palmi, G Cazzaniga
Leukemias bearing CRLF2 and JAK2 gene alterations are characterized by aberrant JAK/STAT signaling and poor prognosis. The HDAC inhibitor givinostat/ITF2357 has been shown to exert antineoplastic activity against both systemic juvenile idiopathic arthritis and myeloproliferative neoplasms through inhibition of the JAK/STAT pathway. These findings led us to hypothesize that givinostat might also act against CRLF2-rearranged BCP-ALL, which lack effective therapies. Here, we found that givinostat inhibited proliferation and induced apoptosis of BCP-ALL CRLF2-rearranged cell lines, positive for exon 16 JAK2 mutations...
March 23, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28314085/targeted-next-generation-sequencing-and-identification-of-risk-factors-in-world-health-organization-defined-atypical-chronic-myeloid-leukemia
#9
Mrinal M Patnaik, Daniela Barraco, Terra L Lasho, Christy M Finke, Kaaren Reichard, Katherine P Hoversten, Rhett P Ketterling, Naseema Gangat, Ayalew Tefferi
Atypical chronic myeloid leukemia (aCML) is an aggressive myeloid neoplasm with overlapping features of myelodysplastic syndromes (prominent granulocytic dysplasia) and myeloproliferative neoplasms (neutrophilic leukocytosis). We studied 25 molecularly-annotated and World Health Organization defined aCML patients; median age 70 years, 84% males. Cytogenetic abnormalities were seen in 36% and gene mutations in 100%. Mutational frequencies were, ASXL1 28%, TET2 16%, NRAS 16%, SETBP1 12%, RUNX1 12%, ETNK1 8% and PTPN11 4%...
March 17, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28299663/runx1-and-cbf%C3%AE-mutations-and-activities-of-their-wild-type-alleles-in-aml
#10
R Katherine Hyde, Paul Liu, Alan D Friedman
Mutations in RUNX1 and CBFB have long been recognized as important in hematological malignancies. Point mutations and deletions of RUNX1 are frequently found in myelodysplastic syndrome, myeloproliferative disease, and acute myeloid leukemia. Germline mutations in RUNX1 are associated with familial platelet disorder with predisposition to AML. In addition, as will be discussed in other chapters, both RUNX1 and CBFB are involved in recurrent chromosomal rearrangements in leukemia. More recently, roles for the non-mutated RUNX1 and CBFB genes have been identified in multiple leukemia subtypes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28267084/monocyte-chemoattractant-protein-1-mcp-1-as-a-potential-therapeutic-target-and-a-noninvasive-biomarker-of-liver-fibrosis-associated-with-transient-myeloproliferative-disorder-in-down-syndrome
#11
Kenichiro Kobayashi, Takako Yoshioka, Jun Miyauchi, Atsuko Nakazawa, Shigeaki Yamazaki, Hiromi Ono, Michiko Tatsuno, Kenta Iijima, Chiaki Takahashi, Yoko Okada, Kenji Teranishi, Takaaki Matsunaga, Chieko Matsushima, Mayo Inagaki, Minoru Suehiro, Saori Suehiro, Masahiko Nishitani, Hirohito Kubota, Jun Iio, Yoshinobu Nishida, Tetsuo Katayama, Narito Takada, Kentaro Watanabe, Tetsuro Yamamoto, Ryoji Yasumizu, Kentaro Matsuoka, Kentaro Ohki, Nobutaka Kiyokawa, Toshiro Maihara, Ikuya Usami
Liver fibrosis is one of the common complications of transient myeloproliferative disorder (TMD) in Down syndrome (DS), but the exact molecular pathogenesis is largely unknown. We herein report a neonate of DS with liver fibrosis associated with TMD, in which we performed the serial profibrogenic cytokines analyses. We found the active monocyte chemoattractant protein-1 expression in the affected liver tissue and also found that both serum and urinary monocyte chemoattractant protein-1 concentrations are noninvasive biomarkers of liver fibrosis...
March 6, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28259746/acute-myeloid-leukemia-in-a-patient-with-thrombocytopenia-with-absent-radii-a-case-report-and-review-of-the-literature
#12
Maximilian Jameson-Lee, Katherine Chen, Ellen Ritchie, Tsiporah Shore, Omar Al-Khattab, Usama Gergis
Thrombocytopenia with absent radii (TAR) syndrome is a rare congenital disorder characterized by low platelet counts of various severity, bilateral absent radii but thumbs are usually present. TAR syndrome is not generally associated with bone marrow failure or malignancy. Janus kinase-2, myeloproliferative leukemia protein, and calreticulin are not mutated in TAR patients. Only four cases of leukemia were reported in TAR patients in the literature: three acute myeloid leukemia (AML) and one acute lymphoblastic leukemia...
February 24, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28242791/response-to-tyrosine-kinase-inhibitors-in-myeloproliferative-neoplasia-with-8p11-translocation-and-cep110-fgfr1-rearrangement
#13
Marc Wehrli, Elisabeth Oppliger Leibundgut, Heinrich H Gattiker, Markus G Manz, Antonia M S Müller, Jeroen S Goede
This brief communication reports on a patient with an exceedingly rare "8p11 (eight-p-eleven) myeloproliferative syndrome" (EMS) with CEP110-FGFR1 rearrangement who responded to treatment with the multi-tyrosine kinase inhibitor (TKI) dasatinib. Dasatinib improved quality of life substantially by increasing blood counts and reducing the need for transfusions. This report demonstrates that the second-generation TKI may provide a therapeutic option for elderly and frail EMS patients who cannot be offered aggressive therapy, including allogeneic hematopoietic cell transplantation...
April 2017: Oncologist
https://www.readbyqxmd.com/read/28240607/downregulation-of-gata1-drives-impaired-hematopoiesis-in-primary-myelofibrosis
#14
Laure Gilles, Ahmet Dirim Arslan, Christian Marinaccio, Qiang Jeremy Wen, Priyanka Arya, Maureen McNulty, Qiong Yang, Jonathan C Zhao, Katerina Konstantinoff, Terra Lasho, Animesh Pardanani, Brady Stein, Isabelle Plo, Sriram Sundaravel, Amittha Wickrema, Annarita Migliaccio, Sandeep Gurbuxani, William Vainchenker, Leonidas C Platanias, Ayalew Tefferi, John D Crispino
Primary myelofibrosis (PMF) is a clonal hematologic malignancy characterized by BM fibrosis, extramedullary hematopoiesis, circulating CD34+ cells, splenomegaly, and a propensity to evolve to acute myeloid leukemia. Moreover, the spleen and BM of patients harbor atypical, clustered megakaryocytes, which contribute to the disease by secreting profibrotic cytokines. Here, we have revealed that megakaryocytes in PMF show impaired maturation that is associated with reduced GATA1 protein. In investigating the cause of GATA1 downregulation, our gene-expression study revealed the presence of the RPS14-deficient gene signature, which is associated with defective ribosomal protein function and linked to the erythroid lineage in 5q deletion myelodysplastic syndrome...
April 3, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28223278/impact-of-genetic-alterations-in-stem-cell-transplantation-for-myelodysplasia-and-secondary-acute-myeloid-leukemia
#15
Tetsuichi Yoshizato, Yasuhito Nannya, Yoshiko Atsuta, Yusuke Shiozawa, Yuka Iijima-Yamashita, Kenichi Yoshida, Yuichi Shiraishi, Hiromichi Suzuki, Yasunobu Nagata, Yusuke Sato, Nobuyuki Kakiuchi, Keitaro Matsuo, Makoto Onizuka, Keisuke Kataoka, Kenichi Chiba, Hiroko Tanaka, Hiroo Ueno, Masahiro M Nakagawa, Bartlomiej Przychodzen, Claudia Haferlach, Wolfgang Kern, Kosuke Aoki, Hidehiro Itonaga, Yoshinobu Kanda, Mikkael A Sekeres, Jaroslaw P Maciejewski, Torsten Haferlach, Yasushi Miyazaki, Keizo Horibe, Masashi Sanada, Satoru Miyano, Hideki Makishima, Seishi Ogawa
Genetic alterations, including mutations and copy number alterations, are central to the pathogenesis of myelodysplastic syndromes and related diseases (myelodysplasia), but their roles in allogeneic stem-cell transplantation have not fully been studied in a large cohort of patients. We enrolled 797 patients who had been diagnosed with myelodysplasia at initial presentation and received transplantation via the Japan Marrow Donor Program. Targeted-capture sequencing was performed to identify mutations in 69 genes, together with copy number alterations, whose effects on transplantation outcomes were investigated...
February 21, 2017: Blood
https://www.readbyqxmd.com/read/28205462/atypical-chronic-myeloid-leukemia-in-a-german-shepherd-dog
#16
Christina L Marino, Jimmy N S N Tran, Tracy Stokol
A 4-y-old neutered male German Shepherd Dog was presented with a 3-d duration of lethargy, restlessness, and vomiting. Physical examination revealed generalized lymphadenopathy, pale mucous membranes, systolic heart murmur, dehydration, and fever. Hematologic abnormalities included moderate-to-marked leukocytosis, characterized by neutrophilia with a left shift to progranulocytes and 2% presumptive myeloid blasts, marked anemia that was nonregenerative, and marked thrombocytopenia. Dysplasia was evident in neutrophils and platelets...
February 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28188970/refractory-anemia-with-ring-sideroblasts-rars-and-rars-with-thrombocytosis-rars-t-2017-update-on-diagnosis-risk-stratification-and-management
#17
Mrinal M Patnaik, Ayalew Tefferi
DISEASE OVERVIEW: Ring sideroblasts (RS) are erythroid precursors with abnormal perinuclear mitochondrial iron accumulation. Two myeloid neoplasms defined by the presence of RS, include refractory anemia with ring sideroblasts (RARS), now classified under myelodysplastic syndromes with RS (MDS-RS) and RARS with thrombocytosis (RARS-T); now called myelodysplastic/myeloproliferative neoplasm with RS and thrombocytosis (MDS/MPN-RS-T). DIAGNOSIS: MDS-RS is a lower risk MDS, with single or multilineage dysplasia (SLD/MLD), <5% bone marrow (BM) blasts and ≥15% BM RS (≥5% in the presence of SF3B1 mutations)...
March 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28179280/gata-factor-mutations-in-hematologic-disease
#18
John D Crispino, Marshall S Horwitz
GATA family proteins play essential roles in development of many cell types, including hematopoietic, cardiac, and endodermal lineages. The first three factors, GATAs 1,2 and 3, are essential for normal hematopoiesis, and their mutations are responsible for a variety of blood disorders. Acquired and inherited GATA1 mutations contribute to Diamond Blackfan anemia, acute megakaryoblastic leukemia, transient myeloproliferative disorder and a group of related congenital dyserythropoietic anemias with thrombocytopenia...
February 8, 2017: Blood
https://www.readbyqxmd.com/read/28159735/the-microenvironment-in-human-myeloid-malignancies-emerging-concepts-and-therapeutic-implications
#19
REVIEW
Hind Medyouf
Similar to their healthy counterpart, malignant hematopoietic stem cells in myeloid malignancies, such as myeloproliferative neoplasms, myelodysplastic syndromes, and acute myeloid leukemia, reside in a highly complex and dynamic cellular microenvironment in the bone marrow. This environment provides key regulatory signals for and tightly controls cardinal features of hematopoietic stem cells (HSCs), including self-renewal, quiescence, differentiation, and migration. These features are essential to maintaining cellular homeostasis and blood regeneration throughout life...
March 23, 2017: Blood
https://www.readbyqxmd.com/read/28138694/activity-of-fibroblast-growth-factor-receptor-inhibitors-tki258-ponatinib-and-azd4547-against-tpr%C3%A2-fgfr1-fusion
#20
Xu-Hua Qiu, Feng Li, Hong-Qin Cao, Jing-Jing Shao, Jian-Gang Mei, Han-Qing Li, Yong-Ping Zhai
8p11 myeloproliferative syndrome (EMS) is a rare disease characterized by the constitutive activation of fibroblast growth factor receptor 1 (FGFR1). To date, four cases of EMS with the chromosomal translocation, t(1;8)(q25;p11.2), have been reported. In the present study, TPR‑FGFR1‑expressing Baf3 cells were established and confirmed by polymerase chain reaction. To identify the most promising drug for EMS, the activities and associated mechanism of three tyrosine kinase inhibitors (TKIs), TKI258, ponatinib and AZD4547, against TPR‑FGFR1 were tested by MTT assay, flow cytometry and western blot...
March 2017: Molecular Medicine Reports
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