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https://www.readbyqxmd.com/read/28804660/large-granular-lymphocytic-leukemia-a-report-of-response-to-rituximab
#1
Uroosa Ibrahim, Sara Parylo, Shiksha Kedia, Shafinaz Hussein, Jean Paul Atallah
Large granular lymphocytic (LGL) leukemia is a rare form of low grade leukemia characterized by large cytotoxic T cells or natural killer cells on morphological examination. Immunosuppressive therapy is employed as first-line therapy. Treatment options in refractory cases include the anti-CD52 antibody alemtuzumab and purine analogues. We report a rare case that responded to the anti-CD20 monoclonal antibody rituximab. A 77-year-old female presented with complaints of fatigue, fever, and chills of 3 months' duration...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28803258/the-impact-of-antimicrobial-prophylaxis-in-morbidity-and-infections-during-azacitidine-treatment
#2
Natalia Lorenzana, Laura Francisca Avila, Sara Alonso, Enrique Colado, Teresa Bernal
The clinical consequences of the infectious events in patients receiving azacitidine are poorly documented. Likewise, the role of primary antimicrobial prophylaxis is unknown. In this retrospective, single-center study, we compare the impact of prophylaxis on the incidence of infection and morbidity in all consecutive higher-risk myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) patients, during the first 4 azacitidine cycles. Seventy-six patients, corresponding to 283 azacitidine cycles, were studied...
August 13, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28771804/palmar-eccrine-hidradenitis-secondary-to-trauma-from-computer-gaming-in-an-adolescent-after-bone-marrow-transplantation
#3
Lynette Ying Lee, Mark Jean-Aan Koh
A 14-year-old boy who had undergone a matched sibling bone marrow transplant for acute lymphoblastic leukemia presented with painful nodules on his palms after prolonged gaming on his computer and mobile phone. Histology showed a neutrophilic inflammatory infiltrate surrounding the acrosyringium and eccrine sweat coils in the deep dermis. The lesions resolved spontaneously with conservative management.
August 2, 2017: Pediatric Dermatology
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
#4
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/28748605/management-of-chemotherapy-induced-febrile-neutropenia-in-pediatric-oncology-patients-a-north-american-survey-of-pediatric-hematology-oncology-and-pediatric-infectious-disease-physicians
#5
Rochelle R Maxwell, Dana Egan-Sherry, Jonathan B Gill, Michael E Roth
BACKGROUND: Chemotherapy-induced febrile neutropenia (FN) is traditionally managed with hospital admission for parenteral antibiotics until neutropenia resolves. Recent studies have explored risk stratification and the safety of managing "low-risk" patients as outpatients. Few studies have directly assessed pediatric provider preferences for managing FN. PROCEDURE: We conducted a survey of practicing US and Canadian pediatric hematology/oncology (PHO) and pediatric infectious disease (PID) physicians to assess their FN management preferences using case scenarios with varying risk profiles...
July 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28744022/granulocyte-colony-stimulating-factor-gcsf-fused-with-fc-domain-produced-from-e-coli-is-less-effective-than-polyethylene-glycol-conjugated-gcsf
#6
Bich Hang Do, Hyo Jeong Kang, Jung-A Song, Minh Tan Nguyen, Sangsu Park, Jiwon Yoo, Anh Ngoc Nguyen, Grace G Kwon, Jaepyeong Jang, Mihee Jang, Sunju Lee, Seoungjun So, Seongrak Sim, Kyung Jin Lee, Mark J Osborn, Han Choe
Human granulocyte colony-stimulating factor (GCSF) is a well-known cytokine for neutropenia treatment. However, daily injections are required due to the short circulating half-life of the protein. To overcome this bottleneck, we fused GCSF with the Fc domain of IgG1 at the C terminus (GCSF-Fc) and with the maltose binding protein (MBP) tag at the N-terminus and expressed it as a soluble protein in the cytoplasm of E. coli. We also conjugated PEG aldehyde to GCSF to make PEG-GCSF. The bioactivities of GCSF-Fc and PEG-GCSF were similar to native GCSF using the mouse M-NFS-60 myelogenous leukemia cell line...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729147/adult-umbilical-cord-blood-transplantation-using-myeloablative-thiotepa-total-body-irradiation-and-fludarabine-conditioning
#7
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
#8
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
#9
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/28705776/short-and-medium-term-biological-variation-estimates-of-leukocytes-extended-to-differential-count-and-morphology-structural-parameters-cell-population-data-in-blood-samples-obtained-from-healthy-people
#10
Sabrina Buoro, Anna Carobene, Michela Seghezzi, Barbara Manenti, Aurelio Pacioni, Ferruccio Ceriotti, Cosimo Ottomano, Giuseppe Lippi
BACKGROUND: Recent studies showed that some cell population data (CPD) parameters of neutrophils may be useful for diagnosing myelodysplastic syndromes and sepsis, for the differential diagnosis of acute promyelocytic leukemia, and some CPD parameters of lymphocytes may be a valuable tool for preliminary screening of B cell lymphoproliferative disease. Notwithstanding the knowledge, no information has been made available about their analytical quality specification. This study was aimed to define short- and medium-term biological variation (BV) estimates and reference change value (RCV) of leukocyte count, extended leukocyte differential and CPD...
July 10, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
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
#11
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/28678969/the-need-for-endodontic-treatment-and-systemic-characteristics-of-hematopoietic-stem-cell-transplantation-patients
#12
Julia Mourão Braga-Diniz, Caroline Christine Santa-Rosa, Renata de Castro Martins, Maria Elisa Souza E Silva, Leda Quercia Vieira, Antônio Paulino Ribeiro Sobrinho
The aim of this study is to investigate the relationship between the epidemiological and clinical profiles of patients before and after hematopoietic stem cell transplantation (HSCT) and the need for endodontic treatment. The subjects included 188 individuals enrolled in the dental care program for transplanted patients of the School of Dentistry, Federal University of Minas Gerais (Faculdade de Odontologia da Universidade Federal de Minas Gerais, FO-UFMG) from March 2011 through March 2016. The patients were subjected to an HSCT conditioning dental regimen based on a thorough clinical and radiographic evaluation...
July 3, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28678809/the-number-of-cd34-cd38-cd117-hla-dr-cd13-cd33-cells-indicates-post-chemotherapy-hematopoietic-recovery-in-patients-with-acute-myeloid-leukemia
#13
Runxia Gu, Hui Wei, Ying Wang, Dong Lin, Bingcheng Liu, Chunlin Zhou, Kaiqi Liu, Benfa Gong, Shuning Wei, Guangji Zhang, Xiaoyuan Gong, Yuntao Liu, Yan Li, Xingli Zhao, Shaowei Qiu, Huijun Wang, Min Wang, Yingchang Mi, Jianxiang Wang
Hematopoietic recovery is considered to be associated with the number of multipotent hematopoietic stem cells in the bone marrow, as observed in functional assays involving stem cell transplantation. However, there is little evidence related to hematopoietic recovery in non-transplantation settings, which is accomplished by endogenous hematopoietic cells. A recent study suggested that progenitors are the main contributors during this steady-state hematopoiesis, which differs from exogenous transplantation. We hypothesized that endogenous progenitor support post-chemotherapy hematopoietic recovery...
2017: PloS One
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
#14
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/28656936/blastic-plasmacytoid-dendritic-cell-leukemia-in-a-black-malian
#15
Y L Diallo, J Cucherousset, O Samassekou, M Doumbere, Y Cissoko, D T Menta, N Ouologuem, M Ouologuem, M Konate, A T Sidibe
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare, clinically aggressive hematologic malignancy, that most commonly manifests as cutaneous lesions. A 19-year-old Malian female was admitted to the Unit of Medicine of Hopital du Mali with anemia, fever, weakness, and weight loss. On physical examination she was wasted, pale, febrile (37.4°C), and had inguinal and axillary lymphadenopathies. The complete blood count found pancytopenia with Hemoglobin level of 4.8 g/dL, Leucocytes count of 1900/μL (neutrophil: 300/μL), and platelets count of 56 000/μL...
June 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28652245/unpaired-extracellular-cysteine-mutations-of-csf3r-mediate-gain-or-loss-of-function
#16
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
#17
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/28637512/single-or-double-unit-ucbt-following-ric-in-adults-with-al-a-report-from-eurocord-the-alwp-and-the-ctiwp-of-the-ebmt
#18
Frédéric Baron, Annalisa Ruggeri, Eric Beohou, Myriam Labopin, Mohamad Mohty, Didier Blaise, Jan J Cornelissen, Patrice Chevallier, Guillermo Sanz, Eefke Petersen, Bipin N Savani, Eliane Gluckman, Arnon Nagler
BACKGROUND: The feasibility of cord blood transplantation (CBT) in adults is limited by the relatively low number of hematopoietic stem/progenitor cells contained in one single CB unit. The infusion of two CB units from different partially HLA-matched donors (double CBT) is frequently performed in patients who lack a sufficiently rich single CB unit. METHODS: We compared CBT outcomes in patients given single or double CBT following reduced-intensity conditioning (RIC) in a retrospective multicenter registry-based study...
June 21, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28631213/the-constitutive-protease-release-by-primary-human-acute-myeloid-leukemia-cells
#19
Maria Honnemyr, Øystein Bruserud, Annette K Brenner
INTRODUCTION: Acute myeloid leukemia (AML) cells show constitutive release of matrix metalloproteases and their inhibitors. We now investigated this constitutive release of protease/protease regulators associated with carcinogenesis (ADAM12, uPA, cystatin B), angiogenesis (serpin E1, uPA, CD147), cancer cell migration (uPA, cystatin C), coagulation (ADAM TS13, serpin C1), inflammation (fetuin A, caspase 1, cystatin C), monocytic differentiation (CFD) or regulation of hematopoiesis (neutrophil elastase)...
June 19, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28622138/cellular-and-plasma-nitrite-levels-in-myeloid-leukemia-a-pathogenetic-decrease
#20
Mili Jain, Ashutosh Kumar, Uma Shankar Singh, Rashmi Kushwaha, Abhishek Kumar Singh, Madhu Dikshit, Anil Kumar Tripathi
Nitric oxide (NO) has contributory role in hemopoietic cell growth and differentiation. The effects of NO on leukemic cell growth have been predominantly studied in in vitro settings. This study was done to assess the alterations in nitrite level in myeloid leukemias.Thirty six newly diagnosed cases of myeloid leukemia (16 AML and 20 CML) were enrolled in the study. Neutrophil precursors from the marrow aspirate and peripheral blood were separated into cell bands using Percoll density gradient method of Borregard and Cowland...
June 15, 2017: Biological Chemistry
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