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chronic neutrophilic leukemia

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https://www.readbyqxmd.com/read/28314085/targeted-next-generation-sequencing-and-identification-of-risk-factors-in-world-health-organization-defined-atypical-chronic-myeloid-leukemia
#1
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/28302714/ruxolitinib-a-potent-jak1-jak2-inhibitor-induces-temporary-reductions-in-the-allelic-burden-of-concurrent-csf3r-mutations-in-chronic-neutrophilic-leukemia
#2
Arief S Gunawan, Donal P McLornan, Bridget Wilkins, Katherine Waghorn, Yvette Hoade, Nick C P Cross, Claire N Harrison
No abstract text is available yet for this article.
March 16, 2017: Haematologica
https://www.readbyqxmd.com/read/28296991/clinicopathologic-immunohistochemical-and-molecular-features-of-histiocytoid-sweet-syndrome
#3
Victoria Alegría-Landa, Socorro María Rodríguez-Pinilla, Angel Santos-Briz, José Luis Rodríguez-Peralto, Victor Alegre, Lorenzo Cerroni, Heinz Kutzner, Luis Requena
Importance: Histiocytoid Sweet syndrome is a rare histopathologic variant of Sweet syndrome. The nature of the histiocytoid infiltrate has generated considerable controversy in the literature. Objective: The main goal of this study was to conduct a comprehensive overview of the immunohistochemical phenotype of the infiltrate in histiocytoid Sweet syndrome. We also analyze whether this variant of Sweet syndrome is more frequently associated with hematologic malignancies than classic Sweet syndrome...
March 15, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28283679/the-immunological-function-of-cd52-and-its-targeting-in-organ-transplantation
#4
REVIEW
Yang Zhao, Huiting Su, Xiaofei Shen, Junfeng Du, Xiaodong Zhang, Yong Zhao
INTRODUCTION: CD52 (Campath-1 antigen), a glycoprotein of 12 amino acids anchored to glycosylphosphatidylinositol, is widely expressed on the cell surface of immune cells, such as mature lymphocytes, natural killer cells (NK), eosinophils, neutrophils, monocytes/macrophages, and dendritic cells (DCs). The anti-CD52 mAb, alemtuzumab, was used widely in clinics for the treatment of patients such as organ transplantation. In the present manuscript, we will briefly summarize the immunological function of CD52 and discuss the application of anti-CD52 mAb in transplantation settings...
March 10, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28255203/indirubin-treatment-of-lipopolysaccharide-induced-mastitis-in-a-mouse-model-and-activity-in-mouse-mammary-epithelial-cells
#5
Jin-Lun Lai, Yu-Hui Liu, Yong-Chong Peng, Pan Ge, Chen-Fei He, Chang Liu, Ying-Yu Chen, Ai-Zhen Guo, Chang-Min Hu
Indirubin is a Chinese medicine extracted from indigo and known to be effective for treating chronic myelogenous leukemia, neoplasia, and inflammatory disease. This study evaluated the in vivo anti-inflammatory activity of indirubin in a lipopolysaccharide- (LPS-) induced mouse mastitis model. The indirubin mechanism and targets were evaluated in vitro in mouse mammary epithelial cells. In the mouse model, indirubin significantly attenuated the severity of inflammatory lesions, edema, inflammatory hyperemia, milk stasis and local tissue necrosis, and neutrophil infiltration...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28252631/-myeloproliferative-masks-of-multiple-myeloma-a-review-of-literature-and-clinical-case-reports
#6
V V Ryzhko, A E Grachev, A A Klodzinsky, T V Ivanova, M S Sataeva, E O Gribanova
Concurrences of multiple myeloma with myeloproliferative diseases or secondary myeloid leukemoid reactions are rather rare. The paper describes 3 cases of multiple myeloma: the first case concurrent with neutrophilic leukocytosis; the second case with secondary erythropoetin-dependent erythrocytosis, and the third case with chronic myeloid leukemia. In such cases, an accurate diagnosis requires molecular testing, besides routine clinical and laboratory studies. The paper discusses therapeutic strategy in cases of a concurrence of 2 competing tumors of the blood system: to treat them simultaneously or the most aggressive tumor now, as well as a relationship between multiple myeloma and chronic myeloid leukemia, other myeloproliferative disorders, and secondary myeloid leukemoid reactions...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28245370/-establishment-and-identification-of-scl-tta-bcr-abl-transgenic-mouse-model-with-chronic-myeloid-leukemia
#7
Yan Lin, Wei Fu, Ying-Min Liang
OBJECTIVE: To establish transgenic mouse model with chronic myeloid leukemia(CML) by tetracycline withdrawal, so as to provide the experimental tool for studying pathogenesis of CML and searching new therapeutic method for this disease. METHODS: The BCR-ABL expression in stem and progenitor cells in SCL-tTA/BCR-ABL transgenic mice was induced by tetracycline withdrawal in drinking water; and the peripheral hemogram and spleen index were examined after identifying genotypes in mice; the distribution of hematopoietic lineage in bone marrow, spleen and peripheral blood was detected by flow cytometry...
February 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28237383/the-curious-case-of-a-cardiac-tamponade-in-the-hypertensive-patient-presenting-as-abdominal-fullness
#8
William Li, Rogin Subedi, Bhaskara Madhira
Cardiac tamponade is a medical emergency consisting of an accumulation of fluid in the pericardial space which is rapidly progressing and fatal. Because cardiac tamponade is ultimately a clinical diagnosis, mindful consideration for atypical presentations is essential for the reduction of mortality in the acute setting. Our patient was a 77year-old female admitted after presenting with general malaise, weakness, somnolence, altered mental status and urinary incontinence found to have CML (chronic myeloid leukemia) on confirmatory bone marrow biopsy after suspicions arose from a leukocytosis of 34,000 cells per mcL with 85% neutrophils and elevated blasts (8%)...
January 19, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28221870/bovine-leukemia-virus-and-mycobacterium-avium-subsp-paratuberculosis-are-not-associated-with-shiga-toxin-producing-escherichia-coli-shedding-in-cattle
#9
Cristina Venegas-Vargas, Shannon D Manning, Paul M Coussens, Jonathan A Roussey, Paul Bartlett, Daniel Grooms
Bovine leukemia virus (BLV) is a retrovirus that causes enzootic bovine leukosis in cattle, and Mycobacterium avium subsp. paratuberculosis (MAP) is the etiologic agent of Johne's disease in cattle. Both diseases are chronic in nature and can lead to the disruption of normal immunological or physiological processes. Cattle are the major reservoir of Shiga toxin-producing Escherichia coli (STEC), a cause of foodborne illness in humans. We tested the hypothesis that cattle infected with BLV or MAP are more likely to shed STEC...
January 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28219221/-the-clinical-characteristics-gene-mutations-and-prognosis-of-chronic-neutrophilic-leukemia
#10
Y J Cui, Q Jiang, J Q Liu, B Li, Z F Xu, T J Qin, Y Zhang, W Y Cai, H L Zhang, L W Fang, L J Pan, N B Hu, S Q Qu, Z J Xiao
Objective: To investigate the clinical manifestation, cytogenetics, gene mutations and prognostic factors of chronic neutrophilic leukemia (CNL) . Methods: 16 CNL cases, according to WHO (2016) -definition, were reviewed retrospectively. Identifications of the CSF3R, ASXL1, SETBP1, CALR and MPL mutations were performed by direct sequencing. JAK2 V617F mutation was detected by AS-PCR. Results: Of the 16 CNL patients, the median age was 64 (43-80) years with a male predominance of 75% (12/16) . The median hemoglobin was 114 (81-154) g/L, with median WBC of 41...
January 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28209919/clinical-significance-of-csf3r-srsf2-and-setbp1-mutations-in-chronic-neutrophilic-leukemia-and-chronic-myelomonocytic-leukemia
#11
Yuan Ouyang, Chun Qiao, Yu Chen, Su-Jiang Zhang
Chronic neutrophilic leukemia (CNL) and chronic myelomonocytic leukemia (CMML) are rare hematologic neoplasms. We performed CSF3R, SRSF2 and SETBP1 mutational analyses in 10 CNL and 56 CMML patients. In this sample cohort, 80% of CNL patients harbored CSF3R mutations, of which the CSF3R T618I mutation was dominant. Mutations in CSF3R and SETBP1 were found in 7.1% and 5.3% CMML patients respectively, while 25% of CMML patients carried SRSF2 mutations. Strikingly, we identified that all of the CSF3R mutations detected in CMML patients were represented by a P733T mutation...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209656/changes-in-allele-frequencies-of-csf3r-and-setbp1-mutations-and-evidence-of-clonal-evolution-in-a-chronic-neutrophilic-leukemia-patient-treated-with-ruxolitinib
#12
Zohra Nooruddin, Nicholas Miltgen, Qi Wei, Jeffrey Schowinsky, Zengang Pan, Jennifer Tobin, Enkhtsetseg Purev, Jonathan A Gutman, William Robinson, Daniel A Pollyea
No abstract text is available yet for this article.
February 16, 2017: Haematologica
https://www.readbyqxmd.com/read/28205462/atypical-chronic-myeloid-leukemia-in-a-german-shepherd-dog
#13
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/28158286/prognostic-significance-of-setbp1-mutations-in-myelodysplastic-syndromes-chronic-myelomonocytic-leukemia-and-chronic-neutrophilic-leukemia-a-meta-analysis
#14
Li-Hong Shou, Dan Cao, Xiao-Hui Dong, Qiu Fang, Ying Wu, Yan Zhang, Ju-Ping Fei, Bao-Lian Xu
OBJECTIVES: This meta-analysis investigates the prognostic effect of SET binding protein 1 (SETBP1) mutations in patients with myelodysplastic syndromes (MDS), chronic myelomonocytic leukemia (CMML), or chronic neutrophilic leukemia (CNL). METHODS: Eligible studies from Pubmed, Embase, and Web of Science were searched from database inception through April 2016. Hazard ratios (HRs) and 95% confidence interval (CI) of overall survival (OS) were pooled to calculate the prognostic significance of SETBP1 mutation in patients...
2017: PloS One
https://www.readbyqxmd.com/read/28053192/mature-cd10-and-immature-cd10-neutrophils-present-in-g-csf-treated-donors-display-opposite-effects-on-t-cells
#15
Olivia Marini, Sara Costa, Dalila Bevilacqua, Federica Calzetti, Nicola Tamassia, Cecilia Spina, Donata De Sabata, Elisa Tinazzi, Claudio Lunardi, Maria T Scupoli, Chiara Cavallini, Elisa Zoratti, Ilaria Tinazzi, Antonio Marchetta, Aurora Vassanelli, Maurizio Cantini, Giorgio Gandini, Andrea Ruzzenente, Alfredo Guglielmi, Francesco Missale, William Vermi, Cristina Tecchio, Marco A Cassatella, Patrizia Scapini
The identification of discrete neutrophil populations, as well as the characterization of their immunoregulatory properties, is an emerging topic under extensive investigation. In such regard, the presence of circulating CD66b(+)-neutrophil populations, exerting either immunosuppressive or proinflammatory functions, has been described in several acute and chronic inflammatory conditions. However, due to the lack of specific markers, the precise phenotype and maturation status of these neutrophil populations remain unclear...
January 4, 2017: Blood
https://www.readbyqxmd.com/read/28031554/enhanced-mapk-signaling-is-essential-for-csf3r-induced-leukemia
#16
S Rohrabaugh, M Kesarwani, Z Kincaid, E Huber, J Leddonne, Z Siddiqui, Y Khalifa, K Komurov, H L Grimes, M Azam
Both membrane-proximal and truncation mutations in CSF3R have recently been reported to drive the onset of chronic neutrophilic leukemia (CNL). Here we show that although truncation mutation alone can not induce leukemia, both proximal and compound mutations (proximal and truncation mutations on same allele) are leukemogenic with a disease latency of 90 and 23 days, respectively. Comparative whole-genome expression profiling and biochemical experiments revealed that induced expression of Mapk adaptor protein Ksr1 and enhanced Mapk signaling are crucial to leukemogenesis by CSF3R proximal and compound mutants...
December 29, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28028025/genomics-of-chronic-neutrophilic-leukemia
#17
REVIEW
Julia E Maxson, Jeffrey W Tyner
Chronic neutrophilic leukemia (CNL) is a distinct myeloproliferative neoplasm with a high prevalence (>80%) of mutations in the colony-stimulating factor 3 receptor (CSF3R). These mutations activate the receptor, leading to the proliferation of neutrophils that are a hallmark of CNL. Recently, the World Health Organization guidelines have been updated to include CSF3R mutations as part of the diagnostic criteria for CNL. Because of the high prevalence of CSF3R mutations in CNL, it is tempting to think of this disease as being solely driven by this genetic lesion...
February 9, 2017: Blood
https://www.readbyqxmd.com/read/27957357/total-body-irradiation-without-chemotherapy-as-conditioning-for-an-allogeneic-hematopoietic-cell-transplantation-for-adult-acute-myeloid-leukemia
#18
Sultan Altouri, Mitchell Sabloff, David Allan, Harry Atkins, Lothar Huebsch, Dawn Maze, Rajiv Samant, Christopher Bredeson
Current therapies for acute myeloid leukemia (AML), failing induction, are rarely effective. We report our experience in 4 patients with AML who received 16 Gy TBI prior to allogeneic hematopoietic cell transplantation (alloHCT), between June 2010 and May 2011. Patients were 20 to 55 years of age, 2 with relapsed disease and 2 with AML failing induction. An HLA-matched graft from related or unrelated donor was infused on day 0. All but one, who received a CD34(+)-selected graft, received methotrexate and tacrolimus +/- antithymocyte globulin, as GVHD prophylaxis...
2016: Case Reports in Hematology
https://www.readbyqxmd.com/read/27930381/chronic-localized-fibrosing-leukocytoclastic-vasculitis-associated-with-lymphedema-intralymphatic-and-intravascular-lymphocytosis-and-chronic-myelogenous-leukemia-a-case-report-of-unilateral-erythema-elevatum-diutinum
#19
Juliana Atallah, Juan C Garces, Enrique Loayza, John A Carlson
One of the pathogenic causes of cutaneous inflammatory pseudotumors is chronic localized fibrosing leukocytoclastic vasculitis (CLFLCV), a vasculitic reaction pattern seen in granuloma faciale (GF), a localized vasculitis, and erythema elevatum diutinum (EED), a generalized vasculitis. Patients with myelodysplastic syndromes (MDSs) are at risk for a diverse spectrum of cutaneous neutrophilic dermatoses such as EED. Herein, we report a 74-year-old man who presented with a large ulcerative, fungating tumor affecting the right flexor ankle caused by CLFLCV...
December 7, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27913552/dao-k-ht-tyner-jw-what-s-different-about-atypical-cml-and-chronic-neutrophilic-leukemia-hematology-am-soc-hematol-educ-program-2015-2015-264-271
#20
(no author information available yet)
No abstract text is available yet for this article.
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
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