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https://www.readbyqxmd.com/read/28427176/metronomic-regimen-as-an-effective-treatment-for-aggressive-t-lgl-leukemia-with-central-nervous-system-infiltration-clinical-experience-and-review-of-literature
#1
REVIEW
Yun Liu, Lei Fan, Huihui Zhao, Wei Xu, Jianyong Li
A 71-year-old man was diagnosed with T-Large granular lymphocytic (LGL) leukemia, which usually represents a relatively indolent clinical course. While the clinical manifestation of this patient we report herein was aggressive with lasting fever, splenomegaly and hemophagocytic lymphohistiocytosis (HLH). T-cell immunophenotype was CD3+CD4-CD8-CD5-CD7-TCRαβ+. After comprehensive evaluation, an adjusted chemotherapy regimen CEOP (cyclophosphamide, vincristine, etoposide, prednisone) with etoposide, a potential effective regimen for HLH was administrated to the patient...
February 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407967/molecular-characterization-of-an-unauthorized-genetically-modified-bacillus-subtilis-production-strain-identified-in-a-vitamin-b2-feed-additive
#2
Valentina Paracchini, Mauro Petrillo, Ralf Reiting, Alexandre Angers-Loustau, Daniela Wahler, Andrea Stolz, Birgit Schönig, Anastasia Matthies, Joachim Bendiek, Dominik M Meinel, Sven Pecoraro, Ulrich Busch, Alex Patak, Joachim Kreysa, Lutz Grohmann
Many food and feed additives result from fermentation of genetically modified (GM) microorganisms. For vitamin B2 (riboflavin), GM Bacillus subtilis production strains have been developed and are often used. The presence of neither the GM strain nor its recombinant DNA is allowed for fermentation products placed on the EU market as food or feed additive. A vitamin B2 product (80% feed grade) imported from China was analysed. Viable B. subtilis cells were identified and DNAs of two bacterial isolates (LHL and LGL) were subjected to three whole genome sequencing (WGS) runs with different devices (MiSeq, 454 or HiSeq system)...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28407008/dysregulated-signaling-proliferation-and-apoptosis-impact-on-the-pathogenesis-of-tcr%C3%AE-%C3%AE-t-cell-large-granular-lymphocyte-leukemia
#3
Martine J Kallemeijn, Dick de Ridder, Joyce Schilperoord-Vermeulen, Michèle Y van der Klift, Yorick Sandberg, Jacques J M van Dongen, Anton W Langerak
TCRγδ+ T-LGL leukemia is a rare form of chronic mature T cell disorders in elderly, which is generally characterized by a persistently enlarged CD3+CD57+TCRγδ+ large granular lymphocyte population in the peripheral blood with a monoclonal phenotype. Clinically, the disease is heterogeneous, most patients being largely asymptomatic, although neutropenia, fatigue and B symptoms and underlying diseases such as autoimmune diseases or malignancies are also often observed. The etiology of TCRγδ+ T-LGL proliferations is largely unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28401952/correlations-in-the-degeneracy-of-structurally-controllable-topologies-for-networks
#4
Colin Campbell, Steven Aucott, Justin Ruths, Derek Ruths, Katriona Shea, Réka Albert
Many dynamic systems display complex emergent phenomena. By directly controlling a subset of system components (nodes) via external intervention it is possible to indirectly control every other component in the system. When the system is linear or can be approximated sufficiently well by a linear model, methods exist to identify the number and connectivity of a minimum set of external inputs (constituting a so-called minimal control topology, or MCT). In general, many MCTs exist for a given network; here we characterize a broad ensemble of empirical networks in terms of the fraction of nodes and edges that are always, sometimes, or never a part of an MCT...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28161176/association-among-gestation-length-and-health-production-and-reproduction-in-holstein-cows-and-implications-for-their-offspring
#5
A Vieira-Neto, K N Galvão, W W Thatcher, J E P Santos
Objectives were to evaluate associations among gestation length (GL) and performance in Holstein cows and their offspring. A total of 8,095 Holstein cows and 3,635 female offspring born alive on 2 farms using only artificial insemination (AI) were evaluated. Gestation length averaged 276 ± 6 d in the 8,095 dams, and it was categorized as short (SGL; at least 1 SD below the population mean; mean = 266 d, range 256 to 269 d), average (AGL; population mean ± 1 SD; mean = 276 d, range 270 to 282 d), or long (LGL; at least 1 SD above the population mean; mean = 285 d, range 283 to 296 d)...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28134920/lymphocyte-expansion-after-unrelated-cord-blood-allogeneic-stem-cell-transplantation-in-adults
#6
Y Le Bris, T Guillaume, A Ménard, M Illiaquer, J Martin, S Malard, A Duquesne, P Peterlin, C Debord, N Robillard, M Eveillard, S Wuillème, J Delaunay, M Mohty, A Garnier, P Moreau, M C Béné, P Chevallier
Limited information is available regarding the incidence and features of lymphocyte expansions after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Large granular lymphocytes (LGL) expansions have been reported after bone marrow or peripheral blood, but not after unrelated cord blood (UCB) allo-HSCT, associated with indolent clinical courses and favorable outcomes. Here, we considered 85 recipients of UCB allo-HSCT to more broadly define the impact of lymphocytosis, not limited to LGL. Sustained lymphocytosis was observed in 21 (25%) patients at a median onset of 12...
January 30, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28128670/large-granular-lymphocytic-leukemia-current-diagnostic-and-therapeutic-approaches-and-novel-treatment-options
#7
Estella Matutes
Large granular lymphocytic leukemia (LGLL) is a low grade lymphoproliferative disorder characterized by the clonal proliferation of large granular lymphocytes (LGL) and recognised by the WHO. The diagnosis and management of these patients is challenging due to the limited information from prospective studies. Guidelines for front-line therapy have not been established. The prognosis is favourable with median overall survivals greater than 10 years. Areas covered: This manuscript is a review of the clinical features, diagnosis, pathogenesis and, in particular, the various available therapeutic options for this rare lymphoid leukemia...
March 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28115367/lgl-leukemia-from-pathogenesis-to-treatment
#8
REVIEW
Thierry Lamy, Aline Moignet, Thomas P Loughran
Large granular lymphocyte (LGL) leukemia has been recognized by the World Health Organization classifications amongst mature T-cell and natural killer (NK) cell neoplasms. There are 3 categories: chronic T-cell leukemia and NK-cell lymphocytosis, which are similarly indolent diseases characterized by cytopenias and autoimmune conditions as opposed to aggressive NK-cell LGL leukemia. Clonal LGL expansion arise from chronic antigenic stimulation, which promotes dysregulation of apoptosis, mainly due to constitutive activation of survival pathways including Jak/Stat, MapK, phosphatidylinositol 3-kinase-Akt, Ras-Raf-1, MEK1/extracellular signal-regulated kinase, sphingolipid, and nuclear factor-κB...
March 2, 2017: Blood
https://www.readbyqxmd.com/read/28048675/tu-fg-209-07-medical-physics-1-0-versus-medical-physics-2-0-a-case-study
#9
D Carver, C Willis, P Stauduhar, T Nishino, J Wells, E Samei
PURPOSE: To illustrate how performance analytics can identify performance decrement in digital radiography systems. METHODS: Subsequent to a radiologist's image quality complaint, four different advanced methods contributed to root cause analysis. Our system was a GE Revolution XQi digital radiography unit. Initially, we reviewed weekly GE Quality Assurance Procedures (QAP) results in a database dating from 2001. Next, we evaluated objective image quality metrics of individual PA Chest radiographs acquired...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27957496/evaluation-of-lethal-giant-larvae-as-a-schistosomiasis-vaccine-candidate
#10
Yufan Cao, Hongbin Qiao, Yanli Shi, Yu Han, Jinming Liu, Hao Li, Ke Lu, Jiaojiao Lin, Yamei Jin
Schistosomiasis is a neglected tropical disease of humans, and it is considered to be the second most devastating parasitic disease after malaria. Eggs produced by normally developed female worms are important in the transmission of the parasite, and they responsible for the pathogenesis of schistosomiasis. The tumor suppressor gene lethal giant larvae (lgl) has an essential function in establishing apical-basal cell polarity, cell proliferation, differentiation, and tissue organization. In our earlier study, downregulation of the lgl gene induced a significant reduction in the egg hatching rate of Schistosoma japonicum (Sj) eggs...
2016: BioMed Research International
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
#11
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/27784383/-analysis-of-lymphocyte-subsets-in-peripheral-blood-of-patients-with-aplastic-anemia-or-hypoplastic-myelodysplastic-syndrome
#12
Yuan-Fei Lv, Zheng-Yu Yan, Nai-Yiao Chen, Jian-Hui Wu, Bin Liu, Guo-Li Wang, Jing Wang
OBJECTIVE: To explore the ratio of lymphocyte subsets in peripheral blood of patients with aplastic anemia (AA) and patients with hypoplastic myelodysplastic syndrome (hypo-MDS) patients and to evaluate their significance. METHODS: The clinical data of 181 cases of AA and 111 cases of hypo-MDS from January 2008 to December 2014 were collected from Blood Diseases Hospital of Chinese academy of medical sciences, and then the differences of lymphocyte subsets and its effect in 2 groups were analyzed...
October 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/27755009/distinguishing-between-hepatosplenic-t-cell-lymphoma-and-%C3%AE-%C3%AE-t-cell-large-granular-lymphocytic-leukemia-a-clinicopathologic-immunophenotypic-and-molecular-analysis
#13
Mariko Yabe, L Jeffrey Medeiros, Sa A Wang, Guilin Tang, Carlos E Bueso-Ramos, Jeffrey L Jorgensen, Govind Bhagat, Weina Chen, Shaoying Li, Ken H Young, Roberto N Miranda
Hepatosplenic T-cell lymphoma (HSTCL) is a rare, aggressive T-cell lymphoma that can be challenging to diagnose. In particular, distinguishing HSTCL from T-cell large granular lymphocytic (T-LGL) leukemia of γδ T-cell receptor (TCR) type is difficult without examination of a splenectomy specimen. In this study, we systematically assessed a series of HSTCL cases for findings reported in the literature as supporting or not supporting the diagnosis of HSTCL. We also compared HSTCL with a group of cases of T-LGL of γδ TCR type...
January 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27720986/in-vitro-reconstitution-of-a-membrane-switch-mechanism-for-the-polarity-protein-lgl
#14
Ilaria Visco, Carsten Hoege, Anthony A Hyman, Petra Schwille
Cell polarity arises from a combination of interactions between biological molecules, such as activation, inhibition, and positive or negative feedback between specific polarity units. Activation and inhibition often take place in the form of a membrane binding switch. Lethal giant larvae (LGL), a conserved regulator of cell polarity in animals, was suggested to function as such a switch. LGL localizes to both the cytoplasm and, asymmetrically, the membrane. However, the spatial regulation mechanism of LGL membrane localization has remained unclear...
December 4, 2016: Journal of Molecular Biology
https://www.readbyqxmd.com/read/27715403/vitamin-d-decreases-stat-phosphorylation-and-inflammatory-cytokine-output-in-t-lgl-leukemia
#15
Kristine C Olson, Paige M Kulling, Thomas L Olson, Su-Fern Tan, Rebecca J Rainbow, David J Feith, Thomas P Loughran
Large granular lymphocyte leukemia (LGLL) is a rare incurable chronic disease typically characterized by clonal expansion of CD3+ cytotoxic T-cells. Two signal transducer and activator of transcription factors, STAT1 and STAT3, are constitutively active in T-LGLL. Disruption of this activation induces apoptosis in T-LGLL cells. Therefore, considerable efforts are focused on developing treatments that inhibit STAT activation. Calcitriol, the active form of vitamin D, has been shown to decrease STAT1 and STAT3 phosphorylation in cancer cell lines and autoimmune disease mouse models...
October 7, 2016: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/27686672/a-screening-method-with-lymphocyte-percentage-and-proportion-of-granular-lymphocytes-in-the-peripheral-blood-for-large-granular-lymphocyte-lgl-leukemia
#16
Takahiro Tanahashi, Nodoka Sekiguchi, Kazuyuki Matsuda, Akihiro Matsumoto, Toshiro Ito, Hideyuki Nakazawa, Fumihiro Ishida
Large granular lymphocyte leukemia (LGL-L) is defined morphologically as a group of lymphoproliferative disorders, including T-cell large granular lymphocytic leukemia (T-LGL-L), chronic lymphoproliferative disorders of NK cells (CLPD-NK), and aggressive NK cell leukemia. We investigated the morphological features of LGL leukemic cells in LGL-L patients to identify screening methods best suited to application in daily clinical practice. LGL leukemic cells were mostly indistinguishable from normal LGL; however, we developed a simplified approach to distinguishing among these cells, in which lymphocyte  % and the proportion of granular lymphocytes among lymphocytes (GL %) can serve as parameters at the cut-off values of 52 and 50 %, respectively...
January 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/27682244/regulation-of-apkc-activity-by-nup358-dependent-sumo-modification
#17
Santosh Kumar Yadav, Indrasen Magre, Aditi Singh, Deepak Khuperkar, Jomon Joseph
Atypical PKC (aPKC) family members are involved in regulation of diverse cellular processes, including cell polarization. aPKCs are known to be activated by phosphorylation of specific threonine residues in the activation loop and turn motif. They can also be stimulated by interaction with Cdc42~GTP-Par6 complex. Here we report that PKCζ, a member of the aPKC family, is activated by SUMOylation. We show that aPKC is endogenously modified by SUMO1 and the nucleoporin Nup358 acts as its SUMO E3 ligase. Results from in vitro SUMOylation and kinase assays showed that the modification enhances the kinase activity of PKCζ by ~10-fold...
September 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27640075/single-center-series-of-bone-marrow-biopsy-defined-large-granular-lymphocyte-leukemia-high-rates-of-sustained-response-to-oral-methotrexate
#18
Talha Munir, Mark J Bishton, Ian Carter, Andrew McMillan, Simon O'Connor, Vishakha Sovani, Andrew P Haynes, Christopher P Fox
INTRODUCTION: Large granular lymphocyte (LGL) leukemia is a rare chronic lymphoproliferative disorder, with few large series reported to date. Series using stringent diagnostic criteria incorporating bone marrow biopsy (BMB), immunophenotyping, and T-cell receptor rearrangements are even scarcer. PATIENTS AND METHODS: The present study was a single-center series of 39 patients with LGL leukemia diagnosed using immunohistochemical analysis of BMB samples and flow cytometric and molecular data...
December 2016: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/27506200/a-tissue-specific-protein-purification-approach-in-caenorhabditis-elegans-identifies-novel-interaction-partners-of-dlg-1-discs-large
#19
Selma Waaijers, Javier Muñoz, Christian Berends, João J Ramalho, Soenita S Goerdayal, Teck Y Low, Adja D Zoumaro-Djayoon, Michael Hoffmann, Thijs Koorman, Roderick P Tas, Martin Harterink, Stefanie Seelk, Jana Kerver, Casper C Hoogenraad, Olaf Bossinger, Baris Tursun, Sander van den Heuvel, Albert J R Heck, Mike Boxem
BACKGROUND: Affinity purification followed by mass spectrometry (AP/MS) is a widely used approach to identify protein interactions and complexes. In multicellular organisms, the accurate identification of protein complexes by AP/MS is complicated by the potential heterogeneity of complexes in different tissues. Here, we present an in vivo biotinylation-based approach for the tissue-specific purification of protein complexes from Caenorhabditis elegans. Tissue-specific biotinylation is achieved by the expression in select tissues of the bacterial biotin ligase BirA, which biotinylates proteins tagged with the Avi peptide...
2016: BMC Biology
https://www.readbyqxmd.com/read/27496109/donor-derived-t-cell-large-granular-lymphocytic-leukemia-in-a-patient-with-peripheral-t-cell-lymphoma
#20
Juliana E Hidalgo Lopez, Mariko Yabe, Adrian A Carballo-Zarate, Sa A Wang, Jeffrey L Jorgensen, Sairah Ahmed, John Lee, Shaoying Li, Ellen Schlette, Timothy McDonnell, Roberto N Miranda, L Jeffrey Medeiros, Carlos E Bueso-Ramos, C Cameron Yin
T-cell large granular lymphocytic (T-LGL) leukemia after hematopoietic stem cell transplantation (SCT) is rare and its natural history and clinical outcome have not been well described. We report the clinical, morphologic, immunophenotypic, and molecular features of a case of donor-derived T-LGL leukemia in a 16-year-old man who received allogeneic SCT for peripheral T-cell lymphoma not otherwise specified (PTCL-NOS). The patient presented with persistent neutropenia and splenomegaly 9 months after SCT when the chimerism study showed a 100% donor pattern...
August 2016: Journal of the National Comprehensive Cancer Network: JNCCN
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