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Treatment Plasma cell leukemia

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https://www.readbyqxmd.com/read/27875673/recent-advances-in-engineered-t-cell-therapies-targeting-b-cell-malignancies
#1
Nathan Singh
Immunotherapy using engineered autologous T cells has been attempted for decades, but clinical trials have only recently demonstrated efficacy. The combination of enhanced manufacturing techniques, highly efficient engineering, appropriate target selection and synthetic receptors with potent T cell activating domains has led to the development of highly-active cellular therapy products. B-cell malignancies have served as the paradigmatic diseases to initially evaluate and subsequently hone engineered T cells targeting cancer...
October 2016: Discovery Medicine
https://www.readbyqxmd.com/read/27859216/cooperation-of-mll-af10-om-lz-with-ptpn11-activating-mutation-induced-monocytic-leukemia-with-a-shorter-latency-in-a-mouse-bone-marrow-transplantation-model
#2
Jen-Fen Fu, Sung-Tzu Liang, Ying-Jung Huang, Kung-Hao Liang, Tzung-Hai Yen, Der-Cherng Liang, Lee-Yung Shih
PTPN11 mutation, a RAS signaling pathway mutation, is associated with MLL translocations in acute leukemia. A girl with MLL/AF10 AML was found to carry PTPN11(G503A) . To study the impact of PTPN11 (G503A) cooperating with MLL/AF10 on leukemogenesis, we established a retroviral transduction/transplantation mouse model. Compared with the MLL/AF10(OM-LZ) leukemia cells harboring PTPN11 (wt) , the cells harboring PTPN11(G503A) were hypersensitive to GM-CSF and IL3, and more resistant to death upon treatment with daunorubicin but sensitive to cytarabine...
November 14, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27859015/hla-e-allelic-genotype-correlates-with-hla-e-plasma-levels-and-predicts-early-progression-in-chronic-lymphocytic-leukemia
#3
Bettina Wagner, Fabiola da Silva Nardi, Sabine Schramm, Thomas Kraemer, Alexander A Celik, Jan Dürig, Peter A Horn, Ulrich Dührsen, Holger Nückel, Vera Rebmann
BACKGROUND: Human leukocyte antigen-E (HLA-E) is a nonclassical major histocompatibility complex class I molecule that recently came into sharper focus as a putative marker of advanced tumor stages and disease progression. In solid tumors, increased HLA-E expression as well as elevated soluble HLA-E (sHLA-E) plasma levels are associated with a poor prognosis; however, a role for HLA-E in hematologic malignancies remains to be established. METHODS: The authors analyzed HLA-E alleles and sHLA-E levels in a cohort of 110 individuals with chronic lymphocytic leukemia (CLL)...
November 2, 2016: Cancer
https://www.readbyqxmd.com/read/27853634/dynamic-alterations-of-bone-marrow-cytokine-landscape-of-myelodysplastic-syndromes-patients-treated-with-5-azacytidine
#4
Alena Moudra, Sona Hubackova, Veronika Machalova, Marketa Vancurova, Jiri Bartek, Milan Reinis, Zdenek Hodny, Anna Jonasova
Myelodysplastic syndromes (MDS) represent a heterogeneous group of clonal stem cell disorders characterized by ineffective hematopoiesis frequently progressing into acute myeloid leukemia (AML), with emerging evidence implicating aberrant bone marrow (BM) microenvironment and inflammation-related changes. 5-azacytidine (5-AC) represents standard MDS treatment. Besides inhibiting DNA/RNA methylation, 5-AC has been shown to induce DNA damage and apoptosis in vitro. To provide insights into in vivo effects, we assessed the proinflammatory cytokines alterations during MDS progression, cytokine changes after 5-AC, and contribution of inflammatory comorbidities to the cytokine changes in MDS patients...
2016: Oncoimmunology
https://www.readbyqxmd.com/read/27833979/multiple-myeloma-and-secondary-plasma-cell-leukemia
#5
Vitorino Modesto Dos Santos, Sandro Pinheiro Melim, Priscilla Souza de Faria, Viviane Vieira Passini, Mayza Lemes Duarte, Renata Athayde Casasanta
Plasma cell leukemia is very rare condition characterized by malignant proliferation of plasma cells in blood and bone marrow, which is aggressive and has a short survival even with conventional treatment. This ominous entity may be primary, or develops secondarily during the course of multiple myeloma. A 53-year-old Brazilian woman with multiple myeloma is described with bone marrow evaluation revealing 25% plasma cells. The quantification of plasma cell infiltration in bone marrow aspirate and immunohistochemistry study revealed consistent features of myeloma and plasma cell leukemia, and lambda light chain expression...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27825464/prognostic-factors-and-indications-for-treatment-of-waldenstr%C3%A3-m-s-macroglobulinemia
#6
REVIEW
Robert A Kyle, Stephen M Ansell, Prashant Kapoor
Waldenström's Macroglobulinemia (WM) is characterized by the presence of an IgM monoclonal protein regardless of its size, 10% or more bone marrow infiltration by small lymphocytes with a plasmacytoid or plasma cell differentiation. These cells usually have the following markers: IgM+, CD5(-), CD10(-), CD19(+), CD20(+) and CD23(-). Chronic lymphocytic leukemia as well as other lymphoproliferative disorders such as mantle cell, marginal zone and mucosa-associated lymphoid tissue (MALT) lymphoma must be excluded...
June 2016: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/27822103/the-danish-national-multiple-myeloma-registry
#7
REVIEW
Peter Gimsing, Morten O Holmström, Tobias Wirenfelt Klausen, Niels Frost Andersen, Henrik Gregersen, Robert Schou Pedersen, Torben Plesner, Per Trøllund Pedersen, Mikael Frederiksen, Ulf Frølund, Carsten Helleberg, Annette Vangsted, Peter de Nully Brown, Niels Abildgaard
AIM: The Danish National Multiple Myeloma Registry (DMMR) is a population-based clinical quality database established in January 2005. The primary aim of the database is to ensure that diagnosis and treatment of plasma cell dyscrasia are of uniform quality throughout the country. Another aim is to support research. Patients are registered with their unique Danish personal identification number, and the combined use of DMMR, other Danish National registries, and the Danish National Cancer Biobank offers a unique platform for population-based translational research...
2016: Clinical Epidemiology
https://www.readbyqxmd.com/read/27819179/plasma-cell-leukemia-update-on-biology-and-therapy
#8
Roberto Mina, Mattia D'Agostino, Chiara Cerrato, Francesca Gay, Antonio Palumbo
Plasma cell leukemia (PCL) is a rare, but very aggressive, plasma cell dyscrasia, representing a distinct clinicopathological entity as compared to multiple myeloma (MM), with peculiar biological and clinical features. A hundred times rarer than MM, the disease course is characterized by short remissions and poor survival. PCL is defined by an increased percentage (>20%) and absolute number (>2 × 10(9)/l) of plasma cells in the peripheral blood. PCL is defined as 'primary' when peripheral plasmacytosis is detected at diagnosis, 'secondary' when leukemization occurs in a patient with preexisting MM...
November 6, 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/27802968/calreticulin-exposure-by-malignant-blasts-correlates-with-robust-anticancer-immunity-and-improved-clinical-outcome-in-aml-patients
#9
Jitka Fucikova, Iva Truxova, Michal Hensler, Etienne Becht, Lenka Kasikova, Irena Moserova, Sarka Vosahlikova, Jana Klouckova, Sarah E Church, Isabelle Cremer, Oliver Kepp, Guido Kroemer, Lorenzo Galluzzi, Cyril Salek, Radek Spisek
Cancer cell death can be perceived as immunogenic by the host only when malignant cells emit immunostimulatory signals (so-called "damage-associated molecular patterns", DAMPs), as they die in the context of failing adaptive responses to stress. Accumulating preclinical and clinical evidence indicates that the capacity of immunogenic cell death (ICD) to (re-)activate an anticancer immune response is key to the success of various chemo- and radiotherapeutic regimens. Malignant blasts from acute myeloid leukemia (AML) patients exposed multiple DAMPs including calreticulin (CRT), heat-shock protein 70 (HSP70) and HSP90 on their plasma membrane irrespective of treatment...
November 1, 2016: Blood
https://www.readbyqxmd.com/read/27797340/sorting-protein-vps33b-regulates-exosomal-autocrine-signaling-to-mediate-hematopoiesis-and-leukemogenesis
#10
Hao Gu, Chiqi Chen, Xiaoxin Hao, Conghui Wang, Xiaocui Zhang, Zhen Li, Hongfang Shao, Hongxiang Zeng, Zhuo Yu, Li Xie, Fangzhen Xia, Feifei Zhang, Xiaoye Liu, Yaping Zhang, Haishan Jiang, Jun Zhu, Jiangbo Wan, Chun Wang, Wei Weng, Jingjing Xie, Minfang Tao, Cheng Cheng Zhang, Junling Liu, Guo-Qiang Chen, Junke Zheng
Certain secretory proteins are known to be critical for maintaining the stemness of stem cells through autocrine signaling. However, the processes underlying the biogenesis, maturation, and secretion of these proteins remain largely unknown. Here we demonstrate that many secretory proteins produced by hematopoietic stem cells (HSCs) undergo exosomal maturation and release that is controlled by vacuolar protein sorting protein 33b (VPS33B). Deletion of VPS33B in either mouse or human HSCs resulted in impaired exosome maturation and secretion as well as loss of stemness...
December 1, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27776282/nanoassemblies-from-amphiphilic-cytarabine-prodrug-for-leukemia-targeted-therapy
#11
Jing Liu, Dujuan Zhao, Wenxiu He, Huiyuan Zhang, Zhonghao Li, Yuxia Luan
The anti-leukemia effect of cytarabine (Ara-C) is severely restricted by its high hydrophilic properties and rapid plasma degradation. Herein, a novel amphiphilic small molecular prodrug of Ara-C was developed by coupling a short aliphatic chain, hexanoic acid (HA) to 4-NH2 of the parent drug. Based on the amphiphilic nature, the resulting bioconjugate (HA-Ara) could spontaneously self-assemble into stable spherical nanoassemblies (NAs) with an extremely high drug loading (∼71wt%). Moreover, folate receptor (FR)-targeting NAs with high grafting efficient folic acid - bovine serum albumin (FA-BSA) conjugate immobilized on the surface (NAs/FA-BSA) was prepared...
October 19, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27759436/primary-plasma-cell-leukemia-2-0-advances-in-biology-and-clinical-management
#12
Antonino Neri, Katia Todoerti, Marta Lionetti, Vittorio Simeon, Marzia Barbieri, Filomena Nozza, Gabriella Vona, Alessandra Pompa, Luca Baldini, Pellegrino Musto
Primary plasma cell leukemia (PPCL) is a rare and aggressive variant of multiple myeloma. The introduction of novel agents and modern technologies has recently partially changed the clinical and biological scenario of this malignancy, allowing limited, but not negligible, progresses. Areas covered: We will discuss the complex landscape of genetic alterations in PPCL, derived from conventional and high-throughput technologies; the best available treatments for PPCL; the possible future therapeutic perspectives...
October 19, 2016: Expert Review of Hematology
https://www.readbyqxmd.com/read/27743763/-fatal-central-nervous-system-hemorrhage-during-acute-lymphoblastic-leukemia-induction
#13
P Pardes-Chavanes, M Afanetti, C Boyer, M Poirée
Intracerebral hemorrhage (ICH) remains a cause of death in hematologic malignancies. Asparaginase represents a key agent in the treatment of acute lymphoblastic leukemia (ALL). The toxicity of asparaginase includes coagulopathy such as thrombotic or bleeding tendency. We report a case of fatal cerebral hemorrhage in a 12-year-old girl treated for ALL. Cerebral hemorrhage occurred after three injections of L-asparaginase. The patient presented with hypofibrinogenemia (0.36g/L), associated with thrombocytopenia (24,000/mm(3))...
October 12, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27722780/n-acetylcysteine-attenuates-intrauterine-growth-retardation-induced-hepatic-damage-in-suckling-piglets-by-improving-glutathione-synthesis-and-cellular-homeostasis
#14
Hao Zhang, Weipeng Su, Zhixiong Ying, Yueping Chen, Le Zhou, Yue Li, Jingfei Zhang, Lili Zhang, Tian Wang
PURPOSE: The objective of the present study was to test the hypothesis that N-acetylcysteine (NAC) may play beneficial roles against intrauterine growth retardation (IUGR)-induced hepatic damage in suckling piglets. METHODS: Fourteen IUGR and seven normal birth weight (NBW) neonatal male piglets were selected. Piglets were weaned at 7 days of postnatal age and fed the control formula milk (NBW-CON and IUGR-CON groups) or the control formula milk supplemented with 1...
October 8, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/27716527/nanomedicine-based-paclitaxel-induced-apoptotic-signaling-pathways-in-a562-leukemia-cancer-cells
#15
Yan Wang, Ling Zhou, Meng Xiao, Zhong-Liang Sun, Chang-Yuan Zhang
In the present study, we have synthesized an amphiphilic pH-sensitive structure of poly(ethylene glycol) methyl ether-b-(poly lactic acid-co-poly(b-amino esters)) (MPEG-b-(PLA-co-PAE)) to load paclitaxel to increase the therapeutic efficacy in leukemia. The micelles exhibit excellent drug-loading capacities for paclitaxel (PTX) and exhibited a typical pH-responsive drug release pattern. The release of PTX from the micelles was significantly accelerated by decreasing pH from 7.4 to 5.0 which just fitted the pathological process...
September 13, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27689871/functional-disparities-among-bcl-2-members-in-tonsillar-and-leukemic-b-cell-subsets-assessed-by-bh3-mimetic-profiling
#16
Victor Peperzak, Erik Slinger, Johanna Ter Burg, Eric Eldering
For successful treatment of malignant B-cells it is crucial to understand intrinsic survival requirements in relation to their normal progenitors. Long-lived humoral immunity as well as most B-cell malignancies, originate in the germinal center (GC). Murine GC B-cells depend on pro-survival protein MCL-1, but not BCL-XL. In contrast, naive and memory B-cells depend on BCL-2, but not BCL-XL or MCL-1. For human B-cell subsets, the functional relationships among BCL-2 members are unclear, and also if and how they shift after malignant transformation...
September 30, 2016: Cell Death and Differentiation
https://www.readbyqxmd.com/read/27669440/from-identification-of-the-btk-kinase-to-effective-management-of-leukemia
#17
C I E Smith
BTK is a cytoplasmic protein-tyrosine kinase, whose corresponding gene was isolated in the early 1990s. BTK was initially identified by positional cloning of the gene causing X-linked agammaglobulinemia and independently in a search for new kinases. Given the phenotype of affected patients, namely lack of B-lymphocytes and plasma cells with the ensuing inability to mount humoral immune responses, BTK inhibitors were anticipated to have beneficial effects on antibody-mediated pathologies, such as autoimmunity...
September 26, 2016: Oncogene
https://www.readbyqxmd.com/read/27661006/type-i-insulin-like-growth-factor-receptor-signaling-in-hematological-malignancies
#18
Deeksha Vishwamitra, Suraj Konnath George, Ping Shi, Ahmed O Kaseb, Hesham M Amin
The insulin-like growth factor (IGF) signaling system plays key roles in the establishment and progression of different types of cancer. In agreement with this idea, substantial evidence has shown that the type I IGF receptor (IGF-IR) and its primary ligand IGF-I are important for maintaining the survival of malignant cells of hematopoietic origin. In this review, we discuss current understanding of the role of IGF-IR signaling in cancer with a focus on the hematological neoplasms. We also address the emergence of IGF-IR as a potential therapeutic target for the treatment of different types of cancer including plasma cell myeloma, leukemia, and lymphoma...
September 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27658435/due-to-interleukin-6-type-cytokine-redundancy-only-glycoprotein-130-receptor-blockade-efficiently-inhibits-myeloma-growth
#19
Renate Burger, Andreas Guenther, Katja Klausz, Matthias Staudinger, Matthias Peipp, Eva Maria Murga Penas, Stefan Rose-John, John Wijdenes, Martin Gramatzki
Interleukin (IL)-6 has an important role in the pathophysiology of multiple myeloma where it supports the growth and survival of the malignant plasma cells in the bone marrow. It belongs to a family of cytokines which use the glycoprotein (gp)130 chain for signal transduction, such as oncostatin M or leukemia inhibitory factor (LIF). Targeting IL-6 in plasma cell diseases is currently evaluated in clinical trials with monoclonal antibodies (mAbs). Here, efforts were made to elucidate the contribution of IL-6 and gp130 signaling in malignant plasma cell growth in vivo...
September 22, 2016: Haematologica
https://www.readbyqxmd.com/read/27613245/the-effect-of-increased-lipoproteins-levels-on-the-disposition-of-vincristine-in-rat
#20
Hadeel A Khalil, Tarek S Belal, Ahmed F El-Yazbi, Dalia A Hamdy
BACKGROUND: Vincristine (VCR), an antineoplastic agent, is a key component in the treatment of acute lymphoblastic leukemia, lymphomas, rhabdomyosarcoma, neuroblastoma, and Wilms' tumor diseases. Recently, high incidence of hyperlipidemia was reported to be associated with allogenic hematopoietic stem cell transplantation and VCR/L-asparaginase therapy. The aim of this study is to test the effects of incremental increase in lipoproteins levels on vincristine disposition in rat. METHOD: To study VCR pharmacokinetics and protein binding, rats (n = 25) were assigned to three groups, normal lipidemic (NL), intermediate (IHL) and extreme hyperlipidemic (HL)...
2016: Lipids in Health and Disease
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