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neutrophilic leukemia

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https://www.readbyqxmd.com/read/28075463/expression-of-the-promyelocytic-leukemia-protein-without-the-nuclear-localization-signal-as-a-novel-diagnostic-marker-for-acute-promyelocytic-leukemia
#1
Ting Xu, Xiao-Qun Yang, Kai-Ling Jiang, Hui Wang, Peng-Peng Ma, Liang Zhong, Bei-Zhong Liu
Promyelocytic leukemia-retinoic acid receptor α (PML-RARα) is a fusion protein generated by the t(15;17)(q22;q12) translocation associated with acute promyelocytic leukemia (APL). PML-RARα is cleaved by neutrophil elastase, an early myeloid-specific serine protease, leading to translocation of the nuclear localization signal (NLS) of the PML protein to the N-terminal of RARα, and the mutational product PML(NLS-). The present study was designed to analyze the role of the NLS in mediating PML transport into the nucleus and to evaluate the value of measuring NLS translocation in the early diagnosis of APL...
January 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28073911/a-truncated-g-csfr-inhibits-apoptosis-induced-by-neutrophil-elastase-g185r-mutant-implication-for-understanding-csf3r-mutations-in-severe-congenital-neutropenia
#2
Yaling Qiu, Yangyang Zhang, Nan Hu, Fan Dong
Mutations in ELANE encoding neutrophil elastase (NE) have been identified in the majority of patients with severe congenital neutropenia (SCN). The NE mutants have been shown to activate unfolded protein response (UPR) and induce premature apoptosis in myeloid cells. Patients with SCN are predisposed to acute myeloid leukemia (AML), and progression from SCN to AML is accompanied by mutations in CSF3R encoding the G-CSF receptor (G-CSFR) in approximately 80% patients. The mutations result in the expression of C-terminally truncated G-CSFRs that promote strong cell proliferation and survival...
January 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28058629/rnai-mediated-knockdown-of-mcm7-gene-on-cml-cells-and-its-therapeutic-potential-for-leukemia
#3
Liang Tian, Juan Liu, Guo-Hua Xia, Bao-An Chen
MCM7 is one of the subunits of MCM2-7 complex, which is essential to DNA replication licensing and the control of cell cycle progression. It has been demonstrated that MCM7 participates in mRNA transcription and DNA damage regulation as well. MCM7 gene is found to be over-expressed in multiple cancers, but there are few reports about its effect in leukemia. Recent studies have proven that MCM7 expression has a relationship with diagnosis and prognosis, which has led to their potential clinical application as a marker for cancer screening...
February 2017: Medical Oncology
https://www.readbyqxmd.com/read/28053192/mature-cd10-and-immature-cd10-neutrophils-present-in-g-csf-treated-donors-display-opposite-effects-on-t-cells
#4
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/28034990/phase-i-study-of-the-aurora-a-kinase-inhibitor-alisertib-with-induction-chemotherapy-in-patients-with-acute-myeloid-leukemia
#5
Amir T Fathi, Seth A Wander, Traci M Blonquist, Andrew M Brunner, Philip C Amrein, Jeffrey Supko, Nicole M Hermance, Amity L Manning, Hossein Sadrzadeh, Karen K Ballen, Eyal C Attar, Timothy A Graubert, Gabriela Hobbs, Christelle Joseph, Ashley M Perry, Meghan Burke, Regina Silver, Julia Foster, Meghan Bergeron, Aura Y Ramos, Tina T Som, Kaitlyn M Fishman, Kristin L McGregor, Christine Connolly, Donna S Neuberg, Yi-Bin Chen
Aberrant expression of aurora kinase A is implicated in the genesis of various neoplasms, including acute myeloid leukemia. Alisertib, an aurora A kinase inhibitor, has demonstrated efficacy as monotherapy in trials of myeloid malignancy, and this efficacy appears enhanced in combination with conventional chemotherapies. In this phase I, dose-escalation study, newly diagnosed patients received conventional induction with cytarabine and idarubicin, after which alisertib was administered for 7 days. Dose escalation occurred via cohorts...
December 29, 2016: Haematologica
https://www.readbyqxmd.com/read/28031554/enhanced-mapk-signaling-is-essential-for-csf3r-induced-leukemia
#6
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
#7
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 (WHO) guidelines have been updated to include CSF3R mutations as a part of the diagnostic criteria for CNL. Due to the high prevalence of CSF3R mutations in CNL, it is tempting to think of this disease as being solely driven by this genetic lesion...
December 27, 2016: Blood
https://www.readbyqxmd.com/read/27974636/myeloperoxidase-enhances-etoposide-and-mitoxantrone-mediated-dna-damage-a-target-for-myeloprotection-in-cancer-chemotherapy
#8
Mandeep Atwal, Emma L Lishman, Caroline A Austin, Ian G Cowell
Myeloperoxidase is expressed exclusively in granulocytes and immature myeloid cells and transforms the topoisomerase II (TOP2) poisons etoposide and mitoxantrone to chemical forms that have altered DNA damaging properties. TOP2 poisons are valuable and widely used anticancer drugs, but they are associated with the occurrence of secondary acute myeloid leukemias. These factors have led to the hypothesis that myeloperoxidase inhibition could protect hematopoietic cells from TOP2 poison-mediated genotoxic damage and, therefore, reduce the rate of therapy-related leukemia...
January 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/27957357/total-body-irradiation-without-chemotherapy-as-conditioning-for-an-allogeneic-hematopoietic-cell-transplantation-for-adult-acute-myeloid-leukemia
#9
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/27941282/donor-cell-leukemia-with-bone-marrow-necrosis
#10
Shuntaro Ikegawa, Yuho Najima, Naoki Sano, Shin-Ichiro Horiguchi, Satoshi Kaito, Shuhei Kurosawa, Masahiro Sakaguchi, Kaito Harada, Yutaro Hino, Keita Yamamoto, Yasushi Senoo, Daisuke Watanabe, Kosuke Yoshioka, Kyoko Watakabe, Aiko Igarashi, Noriko Doki, Takeshi Kobayashi, Kazuhiko Kakihana, Hisashi Sakamaki, Tsunekazu Hishima, Kazuteru Ohashi
A 60-year-old man with myelodysplastic syndrome underwent allogeneic transplantation of female umbilical cord blood in 2010 and sustained a complete remission. He experienced severe pain in his left hip joint and was admitted to the orthopedic surgery division of our institution in February 2015. After admission, he was suspected to have hemophagocytic syndrome (HPS) and was thus transferred to the hematology division. Bone marrow aspiration revealed hyper-cellular marrow filled with abnormal collapsed cells, consistent with bone marrow necrosis (BMN)...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27938816/acral-manifestations-of-sweet-syndrome-neutrophilic-dermatosis-of-the-hands
#11
Ronni Wolf, Yalçın Tüzün
Neutrophilic dermatosis of the hand (NDH) is a rare localized variant of the syndrome, originally described two decades ago by Strutton et al. The lesions of NDH and Sweet syndrome are similar, as indicated in the first report of NDH. Both diagnoses are characterized by an acute onset of fever, leukocytosis, and tender, erythematous infiltrated plaques. There are also bullae and ulceration in NDH, in contrast to Sweet syndrome, in which bullae are quite uncommon, especially at the early stages. Similar to Sweet syndrome, the majority of NDH patients are women (69%)...
January 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/27932186/late-graft-rejection-in-association-with-t-large-granular-lymphocyte-expansion-of-recipient-origin-after-human-leukocyte-antigen-haploidentical-stem-cell-transplantation-a-case-report
#12
N Nakagawa, H Yamazaki, G Aoki, Y Kondo, S Nakao
BACKGROUND: Large granular lymphocyte (LGL) expansion occasionally occurs after allogeneic stem cell transplantation (allo-SCT), and is thought to be a good prognostic sign that is associated with a lower relapse rate. However, there have been no reports of late graft failure (LGF) due to graft rejection in association with oligoclonal LGL expansion. We herein report a case of LGF associated with the transient expansion of recipient-derived T-LGL after allo-SCT. CASE REPORT: A 65-year-old man underwent peripheral blood stem cell transplantation (PBSCT) from his human leukocyte antigen (HLA)-haploidentical son for the treatment of acute myeloid leukemia, which had evolved from a myelodysplastic syndrome (MDS)...
November 2016: Transplantation Proceedings
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
#13
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
#14
(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
https://www.readbyqxmd.com/read/27906795/factors-determining-the-outcome-of-hematopoietic-stem-cell-transplantation-in-patients-with-acute-lymphoblastic-leukemia-at-king-faisal-specialist-hospital-and-research-center-riyadh-saudi-arabia
#15
Suleimman Al-Sweedan, Amal Al-Seraihy, Ali Al-Ahmari, Abdullah Al-Jefri, Viqaruddin Mohammed, Rafat Jafri, Khawar Siddiqui, Mouhab Ayas
Medical records of 82 patients with acute lymphoblastic leukemia (ALL) who underwent hematopoietic cell transplantation (HCT) at our institution from 2005 to 2011 were reviewed. Forty-five patients were male (54.8%). The median age at HCT was 7.46 years (range, 0.98 to 14.31 y), the median time to HCT after diagnosis was 12.56 months. Ten patients were below the age of 1 year (12%). All patients were in complete remission at the time of HCT. In 83 transplants, 64 patients received HCT from human leukocyte antigen-identical-related donors and 19 from other donors...
January 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/27891482/treatment-emergent-agranulocytosis-with-skin-and-gingival-lesions-in-a-chronic-lymphocytic-leukemia-patient-a-case-report
#16
Ramesh Amirisetty, Varun Zade, Meenakshi Boddun, Rolly Gupta, Micky Kumari, Hema Suryawanshi
Chronic Lymphocytic Leukaemia (CLL) is a monoclonal lymphoid malignancy characterized by progressive accumulation of small, mature but functionally incompetent neoplastic lymphocytes in the peripheral blood, bone marrow and lymphoid organs. Patients present a variable course and may not require early intervention unlike other malignancies. Patients with rapidly deteriorating blood counts, and organomegaly need treatment. Alkylating agent live Bendamustine combined with Rituximab, anti-CD 20 monoclonal antibody have shown promising results in such patients...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27881485/visualization-of-ligand-induced-gi-protein-activation-in-chemotaxing-cells
#17
Kazuyuki Masuda, Jun-Ichi Kitakami, Tohru Kozasa, Tatsuhiko Kodama, Sigeo Ihara, Takao Hamakubo
Cell migration to chemoattractants is critically important in both normal physiology and the pathogenesis of many diseases. In GPCR-mediated chemotaxis, GPCRs transduce the gradient of an extracellular chemotactic ligand into intracellular responses via the activation of heterotrimeric G proteins. However, ligand-induced G protein activation has not been directly imaged as yet in mammalian chemotaxing cells. We developed a Förster resonance energy transfer (FRET) probe (R10-Gi) by linking the Gi protein α subunit to the regulator of G protein signaling domain...
November 23, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27856368/haploidentical-transplantation-with-post-transplantation-cyclophosphamide-for-high-risk-acute-lymphoblastic-leukemia
#18
Samer A Srour, Denái R Milton, Asad Bashey, Amado Karduss-Urueta, Monzr M Al Malki, Rizwan Romee, Scott Solomon, Auayporn Nademanee, Stacey Brown, Michael Slade, Rosendo Perez, Gabriela Rondon, Stephan J Forman, Richard E Champlin, Partow Kebriaei, Stefan O Ciurea
Haploidentical transplantation performed with post-transplantation cyclophosphamide (PTCy)-based graft-versus-host disease (GVHD) prophylaxis has been associated with favorable outcomes for patients with acute myeloid leukemia and lymphomas. However, it remains unclear if such approach is effective for patients with acute lymphoblastic leukemia (ALL). We analyzed outcomes of 109 consecutively treated ALL patients 18 years of age and older at 5 institutions. The median age was 32 years and the median follow-up for survivors was 13 months...
February 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27811462/delayed-diagnosis-of-bullous-pyoderma-gangrenosum-with-acute-myelogenous-leukemia
#19
S Sener, G Sarac, N Altunisik, Y Bayindir
Pyoderma gangrenosum (PG) is a rare, but serious neutrophilic dermatosis characterized by recurrent painful cutaneous ulcerations. It is commonly associated with inflammatory bowel disease, rheumatoid arthritis, and hematological malignancies. Because laboratory evaluations and histologic features of PG are nonspecific, diagnosis is based on the clinical features of the ulcer and requires exclusion of other conditions that cause such ulceration. The disease responds to glucocorticoids, immunosuppressives, and anti-inflammatory drugs...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27811020/impact-of-ctla4-genotype-and-other-immune-response-gene-polymorphisms-on-outcomes-after-single-umbilical-cord-blood-transplantation
#20
Renato Cunha, Marco A Zago, Sergio Querol, Fernanda Volt, Annalisa Ruggeri, Guillermo Sanz, Fabienne Pouthier, Gesine Kogler, José L Vicario, Paola Bergamaschi, Riccardo Saccardi, Carmen H Lamas, Cristina Díaz-de-Heredia, Gerard Michel, Henrique Bittencourt, Marli Tavella, Rodrigo A Panepucci, Francisco Fernandes, Julia Pavan, Eliane Gluckman, Vanderson Rocha
We evaluated the impact of recipient and cord blood unit (CBU) genetic polymorphisms related to immune response on outcomes after unrelated CB transplants (CBT). Pre-transplant DNA samples from 696 CBU with malignant diseases were genotyped for NLRP1, NLRP2, NLRP3, TIRAP/Mal, IL10, REL, TNFRSF1B and CTLA4. HLA compatibility was 6/6 in 10%, 5/6 in 39%, and ≥4/6 in 51% of transplants. Myeloablative conditioning was used in 80% and in vivo T-cell depletion in 81% of cases. The median number of total nucleated cells infused was 3...
November 3, 2016: Blood
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