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chronic neutrophilic leukemia

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https://www.readbyqxmd.com/read/28762112/targeted-next-generation-sequencing-identifies-clinically-relevant-mutations-in-patients-with-chronic-neutrophilic-leukemia-at-diagnosis-and-blast-crisis
#1
S E Langabeer, K Haslam, J Kelly, J Quinn, R Morrell, E Conneally
PURPOSE: Chronic neutrophilic leukemia is a rare form of myeloproliferative neoplasm characterized by mature neutrophil hyperleukocytosis. The majority of patients harbor somatic mutations of CSF3R gene and are potentially amenable to targeted therapy with JAK inhibitors. The incidence and clinical significance of additional mutations requires clarification. MATERIALS AND METHODS: A next-generation sequencing approach for myeloid malignancy-associated mutations was applied to diagnostic and matched blast crisis samples from four chronic neutrophilic leukemia patients...
July 31, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28729147/adult-umbilical-cord-blood-transplantation-using-myeloablative-thiotepa-total-body-irradiation-and-fludarabine-conditioning
#2
Sarah Anand, Samantha Thomas, Kelly Corbet, Cristina Gasparetto, Gwynn D Long, Richard Lopez, Ashley K Morris, David A Rizzieri, Keith M Sullivan, Anthony D Sung, Stefanie Sarantopoulos, Nelson J Chao, Mitchell E Horwitz
Treatment-related mortality (TRM) remains elevated in adult patients undergoing umbilical cord blood transplantation (UCBT), including an early rise in TRM suggestive of excessive toxicity associated with the standard myeloablative total body irradiation (TBI), fludarabine, and cyclophosphamide regimen. In an attempt to reduce regimen-related toxicity, we previously studied a modified myeloablative regimen with TBI (1350 cGy) and fludarabine (160 mg/m(2)); TRM was decreased, but neutrophil engraftment was suboptimal...
July 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28718199/the-clec12a-receptor-marks-human-basophils-potential-implications-for-minimal-residual-disease-detection-in-myeloid-malignancies
#3
Marie Toft-Petersen, Anne Stidsholt Roug, Trine Plesner, Lene Ebbesen, Gordon D Brown, Line Nederby
BACKGROUND: The transmembrane receptor C-type lectin domain family 12, member A (CLEC12A) is known to be highly expressed on monocytes and neutrophils and is a reliable leukemia associated marker in acute myeloid leukemia. Consequently, detailed knowledge of the various normal cell types expressing this receptor is essential. We have observed CLEC12A to be expressed on CD45lowSSClowCD14-CD123+ basophils in peripheral blood (PB) and in the present study, we aimed at verifying this observation and further delineate the CD45lowSSClowCD14-CD123+CLEC12A+ subpopulation...
July 17, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28711727/a-chemotherapy-only-regimen-of-busulfan-melphalan-and-fludarabine-and-rabbit-antithymocyte-globulin-followed-by-allogeneic-t-cell-depleted-hematopoietic-stem-cell-transplantations-for-the-treatment-of-myeloid-malignancies
#4
Barbara Spitzer, Ann A Jakubowski, Esperanza B Papadopoulos, Kirsten Fuller, Patrick D Hilden, James W Young, Juliet Barker, Guenther Koehne, Miguel-Angel Perales, Katharine C Hsu, Marcel R M van den Brink, Nancy A Kernan, Susan E Prockop, Andromachi Scaradavou, Hugo Castro-Malaspina, Richard J O'Reilly, Farid Boulad
We sought to develop a myeloablative chemotherapeutic regimen to secure consistent engraftment of T cell-depleted (TCD) hematopoietic stem cell transplantations (HSCT) without the need for total body irradiation, thereby reducing toxicity while maintaining low rates of graft-versus-host disease (GVHD) and without increasing relapse. We investigated the myeloablative combination of busulfan (Bu) and melphalan (Mel), with the immunosuppressive agents fludarabine (Flu) and rabbit antithymocyte globulin (r-ATG) as cytoreduction before a TCD HSCT...
July 12, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28691152/reduced-bucy-2-and-g-csf-primed-bone-marrow-associates-with-low-graft-versus-host-disease-and-transplant-related-mortality-in-allogeneic-hsct
#5
Eucario Leon Rodriguez, Monica M Rivera Franco, Sandra I Perez Alvarez
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the ideal treatment for several diseases. However, the morbidity and mortality associated with the procedure might limit its widespread use; therefore, we implemented reduced BUCY2 as conditioning method along with the use of G-CSF-primed bone marrow (G-BM) in order to reduce complications, including graft-versus-host-disease (GVHD), and to improve survival in these patients. An analysis of transplant characteristics, complications, and survival of patients undergoing an allo-HSCT using this conditioning regimen (busulfan 12 mg/kg and cyclophosphamide 80 mg/kg) plus G-BM was performed...
September 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28676100/superior-gvhd-free-relapse-free-survival-for-g-bm-to-g-pbsc-grafts-is-associated-with-higher-mdscs-content-in-allografting-for-patients-with-acute-leukemia
#6
Qian Fan, Hui Liu, Xinquan Liang, Ting Yang, Zhiping Fan, Fen Huang, Yiwen Ling, Xin Liao, Li Xuan, Na Xu, Xiaojun Xu, Jieyu Ye, Qifa Liu
BACKGROUND: Granulocyte colony-stimulating factor (G-CSF)-mobilized peripheral blood stem cells (G-PBSC) has largely replaced unstimulated bone marrow (un-BM) for allografting because of accelerated engraftment, but with a higher morbidity and mortality of graft-versus-host-disease (GVHD). Recent studies suggested that G-CSF-primed BM (G-BM) had similar engraftment but lower morbidity and mortality of GVHD comparing to G-PBSC. A prospective, randomized, multicenter study was conducted to compare G-BM with G-PBSC as the grafts in allogeneic hematopoietic stem cell transplantation (allo-HSCT) for acute leukemia in first complete remission (CR1)...
July 4, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28652245/unpaired-extracellular-cysteine-mutations-of-csf3r-mediate-gain-or-loss-of-function
#7
Haijiao Zhang, Sophie Means, Anna Reister Schultz, Kevin Watanabe-Smith, Bruno C Medeiros, Daniel Bottomly, Beth Wilmot, Shannon K McWeeney, Tim Kükenshöner, Oliver Hantschel, Jeffrey W Tyner
Exclusive of membrane-proximal mutations seen commonly in chronic neutrophilic leukemia (e.g., T618I), functionally defective mutations in the extracellular domain of the G-CSF receptor (CSF3R) have been reported only in severe congenital and idiopathic neutropenia patients. Here, we describe the first activating mutation in the fibronectin-like type III domain of the extracellular region of CSF3R (W341C) in a leukemia patient. This mutation transformed cells via cysteine-mediated intermolecular disulfide bonds, leading to receptor dimerization...
August 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28644773/mobilized-peripheral-blood-stem-cells-versus-unstimulated-bone-marrow-as-a-graft-source-for-t-cell-replete-haploidentical-donor-transplantation-using-post-transplant-cyclophosphamide
#8
Asad Bashey, Mei-Jie Zhang, Shannon R McCurdy, Andrew St Martin, Trevor Argall, Claudio Anasetti, Stefan O Ciurea, Omotayo Fasan, Sameh Gaballa, Mehdi Hamadani, Pashna Munshi, Monzr M Al Malki, Ryotaro Nakamura, Paul V O'Donnell, Miguel-Angel Perales, Kavita Raj, Rizwan Romee, Scott Rowley, Vanderson Rocha, Rachel B Salit, Melhem Solh, Robert J Soiffer, Ephraim Joseph Fuchs, Mary Eapen
Purpose T-cell-replete HLA-haploidentical donor hematopoietic transplantation using post-transplant cyclophosphamide was originally described using bone marrow (BM). With increasing use of mobilized peripheral blood (PB), we compared transplant outcomes after PB and BM transplants. Patients and Methods A total of 681 patients with hematologic malignancy who underwent transplantation in the United States between 2009 and 2014 received BM (n = 481) or PB (n = 190) grafts. Cox regression models were built to examine differences in transplant outcomes by graft type, adjusting for patient, disease, and transplant characteristics...
June 23, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28610607/resveratrol-distinctively-modulates-the-inflammatory-profiles-of-immune-and-endothelial-cells
#9
Joseph Schwager, Nathalie Richard, Franziska Widmer, Daniel Raederstorff
BACKGROUND: The phenolic substance resveratrol (RES) is a plant metabolite known to modulate numerous physiological functions and to exert beneficial effects as a cancer-chemopreventing agent and on neurological, hepatic, and cardiovascular systems. Since the compound affects the lifespan of yeast and flies it might be an anti-aging substance. Mechanistically, RES is involved in down regulating the inflammatory response. The pleiotropic effects of RES in cells of the immune and endothelial system were examined in this study...
June 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28548124/oligomonocytic-chronic-myelomonocytic-leukemia-chronic-myelomonocytic-leukemia-without-absolute-monocytosis-displays-a-similar-clinicopathologic-and-mutational-profile-to-classical-chronic-myelomonocytic-leukemia
#10
Julia T Geyer, Wayne Tam, Yen-Chun Liu, Zhengming Chen, Sa A Wang, Carlos Bueso-Ramos, Jean Oak, Daniel A Arber, Eric Hsi, Heesun J Rogers, Katherine Levinson, Adam Bagg, Duane C Hassane, Robert P Hasserjian, Attilio Orazi
Chronic myelomonocytic leukemia is characterized by persistent absolute monocytosis (≥1 × 10(9)/l) in the peripheral blood and dysplasia in ≥1 lineages. In the absence of dysplasia, an acquired clonal genetic abnormality is required or causes for reactive monocytosis have to be excluded. Oligomonocytic chronic myelomonocytic leukemia showing increased monocytes but no absolute monocytosis in the peripheral blood occurs occasionally. These cases are likely classified as myelodysplastic syndrome or myelodysplastic/myeloproliferative neoplasm, unclassifiable...
May 26, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28515095/a-prognostic-index-for-chronic-and-smoldering-type-adult-t-cell-leukemia-lymphoma
#11
Hiroo Katsuya, Mototsugu Shimokawa, Kenji Ishitsuka, Kazuhiro Kawai, Masahiro Amano, Atae Utsunomiya, Ryosuke Hino, Shuichi Hanada, Tatsuro Jo, Kunihiro Tsukasaki, Yukiyoshi Moriuchi, Eisaburo Sueoka, Shinichiro Yoshida, Hitoshi Suzushima, Masaharu Miyahara, Kiyoshi Yamashita, Tetsuya Eto, Junji Suzumiya, Kazuo Tamura
Adult T-cell leukemia-lymphoma (ATL) has been divided into 4 clinical subtypes: acute, lymphoma, chronic, and smoldering. The aim of this study is to develop a novel prognostic index (PI) for chronic and smoldering ATL. We conducted a nationwide retrospective survey on ATL patients, and 248 fully eligible individuals were used in this analysis. In the univariate analysis, gender, performance status, log10[soluble interleukin-2 receptor (sIL-2R)], neutrophils count, and lymphadenopathy showed P values less than ...
May 17, 2017: Blood
https://www.readbyqxmd.com/read/28499936/umbilical-cord-blood-transplantation-without-antithymocyte-globulin-results-in-similar-survival-but-better-quality-of-life-compared-with-unrelated-peripheral-blood-stem-cell-transplantation-for-the-treatment-of-acute-leukemia-a-retrospective-study-in-china
#12
Juan Tong, Li Xuan, Yanling Sun, Dongping Huang, Huilan Liu, Changcheng Zheng, Xiaoyu Zhu, Baolin Tang, Kaidi Song, Xuhan Zhang, Lei Zhang, Wen Yao, Dongjun Lin, Qifa Liu, Zimin Sun
Although previous studies have demonstrated improved outcomes in umbilical cord blood transplantation (UCBT) by omitting antithymocyte globulin (ATG) in the conditioning regimen, this approach has not been comparatively studied in unrelated peripheral blood stem cell transplantation (UPBSCT). To compare the risks and benefits between UCBT without ATG and UPBSCT in patients with acute leukemia (AL), we conducted a multicenter retrospective study of 79 patients who underwent UCBT (myeloablative conditioning without ATG) and 96 patients who underwent UPBSCT (myeloablative conditioning with ATG)...
May 9, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28487867/non-ischemic-cardiomyopathy-after-rituximab-treatment-for-membranous-nephropathy
#13
Wisit Cheungpasitporn, Stephen L Kopecky, Ulrich Specks, Kharmen Bharucha, Fernando C Fervenza
Rituximab is an anti-CD20 monoclonal antibody frequently used for the treatment of non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis (RA), and anti-neutrophilic cytoplasmic antibody (ANCA)-associated vasculitis. In addition, rituximab has recently been increasingly used as an off-label treatment in a number of inflammatory and systemic autoimmune diseases. It is advised that rituximab infusion may cause infusion reactions and adverse cardiac effects including arrhythmia and angina, especially in patients with prior history of cardiovascular diseases...
2017: Journal of Renal Injury Prevention
https://www.readbyqxmd.com/read/28473690/clinical-and-laboratory-features-of-cd5-negative-chronic-lymphocytic-leukemia
#14
Cengiz Demir, Erdal Kara, Ömer Ekinci, Senar Ebinç
BACKGROUND Chronic lymphocytic leukemia (CLL) usually expresses CD5 antigen. However, 7-20% of patients are CD5 negative. We report here a series of 19 CD5-negative B-CLL cases. MATERIAL AND METHODS We reviewed 19 consecutive CD5-negative B-CLL cases seen in our medical center from 2009 to 2015 and compared them with 105 CD5-positive B-CLL cases. The two groups were compared in terms of clinical parameters, laboratory parameters, and survival characteristics. RESULTS Lymphadenopathy was present in 31.5% of the CD5-negative group and 51...
May 5, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28454252/multifactorial-neutropenia-in-a-patient-with-acute-promyelocytic-leukemia-and-associated-large-granular-lymphocyte-expansion-a-case-report
#15
Gianluigi Reda, Bruno Fattizzo, Ramona Cassin, Elena Flospergher, Nicola Orofino, Umberto Gianelli, Wilma Barcellini, Agostino Cortelezzi
Neutropenia in the setting of acute hematological malignancies may impact disease prognosis, thus affecting therapy dose intensity. This is often due to chemotherapy-induced aplasia as well as to the disease itself. However, chronic neutropenia deserves further investigation, as the management of reversible concomitant causes may avoid treatment delay. The present study describes a case of an acute promyelocytic leukemia patient with chronic severe neutropenia of multifactorial origin, including acute leukemia itself, chemotherapy, autoimmune activation with anti-platelets and anti-neutrophil antibodies positivity, and the rare association of large granular lymphocyte (LGL) expansion...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28444777/interphase-fish-for-bcr-abl1-rearrangement-on-neutrophils-a-decisive-tool-to-discriminate-a-lymphoid-blast-crisis-of-chronic-myeloid-leukemia-from-a-de-novo-bcr-abl1-positive-acute-lymphoblastic-leukemia
#16
Estelle Balducci, Marie Loosveld, Ilhem Rahal, John Boudjarane, Emilie Alazard, Chantal Missirian, Marina Lafage-Pochitaloff, Gérard Michel, Hélène Zattara
Discrimination between lymphoid blast crisis of chronic myeloid leukemia (CML) and de novo BCR-ABL1 positive acute lymphoblastic leukemia (ALL) represents a diagnostic challenge because this distinction has a major incidence on the management of patients. Here, we report an uncommon pediatric case of ALL with cryptic ins(22;9)(q11;q34q34) and p190-type BCR-ABL1 transcript. We performed interphase fluorescence in situ hybridization (FISH) for BCR-ABL1 rearrangement on blood neutrophils, which was positive consistent with the diagnosis of lymphoid blast crisis of CML...
April 25, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28442268/generalized-palisaded-neutrophilic-and-granulomatous-dermatitis-a-cutaneous-manifestation-of-chronic-myelomonocytic-leukemia-a-clinical-histopathological-and-molecular-study-of-three-cases
#17
Birgit Federmann, Irina Bonzheim, Amir S Yazdi, Janine Schmidt, Falko Fend, Gisela Metzler
Palisaded neutrophilic and granulomatous dermatitis (PNGD) is characterized by erythematous papules or plaques on trunk or limbs and is frequently associated with rheumatological, autoimmune or hematological malignancies. Histopathology shows interstitial granulomas composed of epitheloid histiocytes in the reticular dermis with surrounding foci of collagen degeneration and variable neutrophilic inflammation. We report three cases of generalized PNGD associated with chronic myelomonocytic leukemia (CMML), a myelodysplastic/myeloproliferative neoplasm, which may show a variety of cutaneous manifestations...
April 22, 2017: Human Pathology
https://www.readbyqxmd.com/read/28389255/relative-telomere-length-before-hematopoietic-cell-transplantation-and-outcome-after-unrelated-donor-hematopoietic-cell-transplantation-for-acute-leukemia
#18
Youjin Wang, Tao Wang, Casey Dagnall, Michael Haagenson, Stephen R Spellman, Belynda Hicks, Kristine Jones, Stephanie J Lee, Sharon A Savage, Shahinaz M Gadalla
Telomeres are tandem nucleotide repeats and a protein complex located at the end of the chromosomes maintaining genomic stability. Their potential as a predictive biomarker for outcomes after allogeneic hematopoietic cell transplant (HCT) in hematologic malignancies is still unclear. From the Center for International Blood and Marrow Transplant Research we randomly selected 536 acute leukemia patients from those who underwent myeloablative 8/8 HLA-matched unrelated donor HCT between 2005 and 2012 and who had an available pre-HCT blood sample in the repository...
July 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28371883/feasibility-of-counting-smudge-cells-as-lymphocytes-in-differential-leukocyte-counts-performed-on-blood-smears-of-patients-with-established-or-suspected-chronic-lymphocytic-leukemia-small-lymphocytic-lymphoma
#19
Gene Gulati, Vandi Ly, Guldeep Uppal, Jerald Gong
Background: Lymphocytosis and smudge cells are commonly observed on the blood smears of patients with an established or suspected diagnosis of chronic lymphocytic leukemia/small lymphocytic lymphoma. Excluding smudge cells from the manual differential count (MDIFF), a common laboratory practice, yields unreliable results and consequently necessitates performing the MDIFF testing on an albuminized blood smear. Objective: To assess the reliability of counting smudge cells as lymphocytes in the MDIFFs on nonalbuminized smears and automated differentials (ADIFFs) as a substitute for MDIFFs...
May 1, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28314085/targeted-next-generation-sequencing-and-identification-of-risk-factors-in-world-health-organization-defined-atypical-chronic-myeloid-leukemia
#20
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%...
June 2017: American Journal of Hematology
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