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Plasma cell leukemia

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https://www.readbyqxmd.com/read/29344132/aberrant-nlrp3-inflammasome-associated-with-aryl-hydrocarbon-receptor-potentially-contributes-to-the-imbalance-of-t-helper-cells-in-patients-with-acute-myeloid-leukemia
#1
Yan Jia, Chen Zhang, Mingqiang Hua, Min Wang, Ping Chen, Daoxin Ma
Acute myeloid leukemia (AML) is a hematological malignancy in which the immune response serves a pivotal role in progression. Aryl hydrocarbon receptor (AHR) is involved in the modulation of the immune system, particularly in the differentiation of T-helper cell (Th) subsets. Although the NLR family pyrin domain-containing 3 (NLRP3) inflammasome has been implicated as essential in the pathogenesis of autoimmune and inflammatory diseases, the role it serves in the development of AML remains unknown. Therefore, in order to identify and describe the possible roles of AHR, as well as NLRP3 inflammasome, in the pathogenesis of AML and their relationship with Th subsets (Th1 Th22), the present study investigated the mRNA expression levels of AHR and NLRP3 inflammasome molecules in the peripheral blood and bone marrow...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344112/zgdhu-1-for-cancer-therapy
#2
Jinlin Liu, Liannv Qiu, Jun Xia, Sufeng Chen, Xiping Yu, Yonglie Zhou
N,N'-di-(m-methylphenyl)-3,6-dimethyl-1,4-dihydro-1,2,4,5-tetrazine-1,4-dicarboamide (ZGDHu-1) is a novel tetrazine derivative that was initially designed and produced by Professor W.X. Hu, and which has been reported by our group to exhibit antitumor activity. Accumulating evidence suggests that the anticancer mechanisms of ZGDHu-1 may be involved indifferent biological activities, particularly in acute myeloid leukemia (AML) cells. At a high concentration, ZGDHu-1 has been demonstrated to inhibit the proliferation of the leukemia cells by arresting the cell cycle at the G2/M phase, and by inducing cell apoptosis via inducing the accumulation of reactive oxygen species, the translocation of phosphatidylserine across the plasma membrane and the loss of mitochondrial membrane potential...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29339551/inhibition-of-flt3-and-pim-kinases-by-ec-70124-exerts-potent-activity-in-preclinical-models-of-acute-myeloid-leukemia
#3
Noelia Puente-Moncada, Paula Costales, Isaac Antolín, Luz Elena Núñez, Patricia Oro, Maria Ana Hermosilla, Jhudit Perez-Escuredo, Nicolas Rios-Lombardia, Ana M Sanchez-Sanchez, Elisa Luño, Carmen Rodriguez, Vanesa Martin, Francisco Moris
Internal tandem duplication (ITD) or tyrosine kinase domain mutations of FLT3 is the most frequent genetic alteration in acute myeloid leukemia (AML) and are associated with poor disease outcome. Despite considerable efforts to develop single-target FLT3 drugs, so far, the most promising clinical response has been achieved using the multikinase inhibitor midostaurin. Here we explore the activity of the indolocarbazole EC-70124, from the same chemical space as midostaurin, in preclinical models of AML, focusing on those bearing FLT3-ITD mutations...
January 16, 2018: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29333561/pharmacokinetics-of-the-b-cell-lymphoma-2-bcl-2-inhibitor-venetoclax-in-female-subjects-with-systemic-lupus-erythematosus
#4
Mukul Minocha, Jiewei Zeng, Jeroen K Medema, Ahmed A Othman
BACKGROUND AND OBJECTIVE: Venetoclax is an oral selective Bcl-2 inhibitor approved for the treatment of patients with chronic lymphocytic leukemia with 17p deletion. Mechanistic and preclinical evidence warranted evaluation of venetoclax for the treatment of systemic lupus erythematosus (SLE). This work characterized the pharmacokinetics of venetoclax in female subjects with SLE. METHODS: Single (10-500 mg) and multiple (30-600 mg) escalating doses of venetoclax or matching placebo were evaluated using randomized, double-blind, placebo-controlled designs (6 active and 2 placebo per dose with 73 unique SLE patients enrolled, 25 of whom enrolled twice)...
January 15, 2018: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/29333413/a-case-of-primary-plasma-cell-leukemia-exhibiting-hemophagocytic-plasma-cells-relapsed-with-multiple-cutaneous-plasmacytoma
#5
Narae Hwang, Ji Yeon Ham, Jang Soo Suh
No abstract text is available yet for this article.
December 2017: Blood Research
https://www.readbyqxmd.com/read/29332353/aesculetin-6-7-dihydroxycoumarin-exhibits-potent-and-selective-antitumor-activity-in-human-acute-myeloid-leukemia-cells-thp-1-via-induction-of-mitochondrial-mediated-apoptosis-and-cancer-cell-migration-inhibition
#6
Jian Gong, Wei-Guo Zhang, Xiao-Fen Feng, Mei-Juan Shao, Chao Xing
PURPOSE: The main target of the present research was to examine the antitumor properties of aesculetin in human acute myeloid leukemia cancer cells (THP-1) and peripheral blood mono-nucleated cells (PBMCs) (used as normal cell line model) along with the determination of its effects on induction of apoptosis, inhibition of cancer cell migration and changes in Bcl-2/Bax protein expressions. METHODS: MTT colorimetric bioassay was performed to study the impact of this natural compound on cytotoxicity of both cell types...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29296780/interleukin-6-levels-predict-event-free-survival-in-pediatric-aml-and-suggest-a-mechanism-of-chemotherapy-resistance
#7
Alexandra M Stevens, Jennifer M Miller, Jaime O Munoz, Amos S Gaikwad, Michele S Redell
The tumor microenvironment can protect cancer cells from conventional anticancer therapies. Thus, targeting these protective mechanisms could eradicate therapy-resistant cancer cells and improve outcomes. Interleukin-6 (IL-6) provides extrinsic protection for several solid tumors and multiple myeloma. In pediatric acute myeloid leukemia (AML), IL-6-induced STAT3 signaling frequently becomes stronger at relapse, and increases in IL-6-induced STAT3 activity are associated with inferior survival after relapse...
August 8, 2017: Blood Advances
https://www.readbyqxmd.com/read/29277764/distribution-of-curcumin-and-thc-in-peripheral-blood-mononuclear-cells-isolated-from-healthy-individuals-and-patients-with-chronic-lymphocytic-leukemia
#8
Gordon T Bolger, Albert Licollari, Aimin Tan, Richard Greil, Lisa Pleyer, Brigitta Vcelar, Muhammad Majeed, Peter Sordillo
Background/Aim: Curcumin is being widely investigated for its anticancer properties and studies in the literature suggest that curcumin distributes to a higher degree in tumor versus non-tumor cells. In the current study, we report on investigation of the distribution of curcumin and metabolism to THC in PBMC from healthy individuals and chronic lymphocytic leukemia (CLL) patients following exposure to Lipocurc™ (liposomal curcumin). Materials and Methods: The time and temperature-dependent distribution of liposomal curcumin and metabolism to tetrahydrocurcumin (THC) were measured in vitro in human peripheral blood mononuclear cells (PBMC) obtained from healthy individuals, PBMCHI(cryopreserved and freshly isolated PBMC) and CLL patients (cryopreserved PBMC) with lymphocyte counts ranging from 17-58×106 cells/ml (PBMCCLL,Grp 1) and >150×106 cells/ml (PBMCCLL,Grp 2)...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29244631/initial-results-of-peripheral-blood-stem-cell-mobilization-collection-cryopreservation-and-engraftment-after-autologous-transplantation-confirm-that-the-capacity-building-approach-offers-good-chances-of-success-in-critical-contexts-a-kurdish-italian-cooperative
#9
Ignazio Majolino, Dereen Mohammed, Dastan Hassan, Francesco Ipsevich, Chra Abdullah, Rebar Mohammed, Angelo Palmas, Marco Possenti, Diana Noori, Dlir Ali, Harem Karem, Salah Salih, Michele Vacca, Claudia Del Fante, Angelo Ostuni, Andrea Frigato, Maria Speranza Massei, Annunziata Manna, Stefania Vasta, Marcela Gabriel, Marta Verna, Attilio Rovelli, Valentino Conter, Kosar Ali, Dosti Othman
Introduction At Hiwa Cancer Hospital (Sulaymaniyah, Iraqi Kurdistan) after the center was started by a cooperative project in June 2016, autologous transplantation was developed. Patients and Methods To develop the project, the capacity-building approach was adopted, with on-site training and coaching of personnel, educational meetings, lectures, on-the-job training, and the implementation of quality management planning. Results Here, we report initial results of peripheral-blood stem-cell mobilization and collection of the first 27 patients (age 12 to 61 years; 19 males and 8 females; multiple myeloma, n = 10; plasma cell leukemia, n = 1; Hodgkin lymphoma, n = 12; non-Hodgkin lymphoma, n = 3; and acute myeloid leukemia, n = 1)...
December 15, 2017: Journal of Global Oncology
https://www.readbyqxmd.com/read/29241094/adhesion-of-human-monocytes-to-oxygen-and-nitrogen-containing-plasma-polymers-effect-of-surface-chemistry-and-protein-adsorption
#10
Sara Babaei, Natalie Fekete, Corinne A Hoesli, Pierre-Luc Girard-Lauriault
The interactions between monocytes and biomaterials can potentially be modulated by controlling the chemical and structural surface properties of biomaterials. The objective of this study was to determine the effect of plasma-deposited functional organic coatings on monocyte adhesion and differentiation into macrophages. Organic coatings with varying oxygen and nitrogen concentration were prepared by low-pressure plasma co-polymerization of binary gas mixtures combining a hydrocarbon (butadiene/ethylene) and a heteroatom-containing gas (carbon dioxide/ammonia) to deposit either oxygen or nitrogen-containing coatings...
December 6, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29222114/blood-vitronectin-is-a-major-activator-of-lif-and-il-6-in-the-brain-through-integrin-fak-and-upar-signaling
#11
M P Keasey, C Jia, L F Pimentel, R S Sante, C Lovins, T Hagg
We defined how blood-derived vitronectin (VTN) rapidly and potently activates leukemia inhibitory factor (LIF) and pro-inflammatory interleukin 6 (IL-6) in vitro and after vascular injury in the brain. VTN (not fibrinogen, fibronectin, laminin-111, collagen-I) robustly increased LIF and IL-6 within 4 hr in C6-astroglioma cells, while VTN-/- mouse plasma was less effective than wildtype. LIF and IL-6 were induced by intracerebral injection of rhVTN in mice, but less by intracerebral hemorrhage in VTN-/- than wildtype littermates...
December 8, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/29217783/somatic-stat3-mutations-in-the-felty-syndrome-an-implication-for-a-common-pathogenesis-with-large-granular-lymphocyte-leukemia
#12
Paula Savola, Oscar Brück, Thomas Olson, Tiina Kelkka, Markku J Kauppi, Panu E Kovanen, Soili Kytölä, Tuulikki Sokka-Isler, Thomas P Loughran, Marjatta Leirisalo-Repo, Satu Mustjoki
Felty syndrome is a rare disease defined by neutropenia, splenomegaly, and rheumatoid arthritis. Sometimes the differential diagnosis between Felty syndrome and large granular lymphocyte leukemia is problematic. Recently, somatic STAT3 and STAT5B mutations were discovered in 30-40% of patients with large granular lymphocyte leukemia. We now aimed to study whether these mutations can also be detected in Felty syndrome, which would imply for a common pathogenic mechanism between these two disease entities. We collected samples and clinical information from 14 Felty syndrome patients who were monitored at the rheumatology outpatient clinic for Felty syndrome...
December 7, 2017: Haematologica
https://www.readbyqxmd.com/read/29216917/unexpected-profile-of-sphingolipid-contents-in-blood-and-bone-marrow-plasma-collected-from-patients-diagnosed-with-acute-myeloid-leukemia
#13
Marzena Wątek, Bonita Durnaś, Tomasz Wollny, Marcin Pasiarski, Stanisław Góźdź, Michał Marzec, Anna Chabowska, Przemysław Wolak, Małgorzata Żendzian-Piotrowska, Robert Bucki
BACKGROUND: Impaired apoptotic pathways in leukemic cells enable them to grow in an uncontrolled way. Moreover, aberrations in the apoptotic pathways are the main factor of leukemic cells drug resistance. METHODS: To assess the presence of potential abnormalities that might promote dysfunction of leukemic cells growth, HPLC system was used to determine sphingosine (SFO), sphinganine (SFA), sphingosine-1-phosphate (S1P) and ceramide (CER) concentration in the blood collected from patients diagnose with acute myeloblastic leukemia (AML; n = 49) and compare to values of control (healthily) group (n = 51)...
December 8, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29209044/biological-and-prognostic-impact-of-apobec-induced-mutations-in-the-spectrum-of-plasma-cell-dyscrasias-and-multiple-myeloma-cell-lines
#14
F Maura, M Petljak, M Lionetti, I Cifola, W Liang, E Pinatel, L Alexandrov, A Fullam, I Martincorena, K J Dawson, N Angelopoulos, M K Samur, R Szalat, J Zamora, P Tarpey, H Davies, P Corradini, K Anderson, S Minvielle, A Neri, H Avet-Loiseau, J J Keats, P J Campbell, N Munshi, N Bolli
Leukemia accepted article preview online, 06 December 2017. doi:10.1038/leu.2017.345.
December 6, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29202792/the-cc-chemokine-ligand-ccl-1-upregulated-by-the-viral-transactivator-tax-can-be-downregulated-by-minocycline-possible-implications-for-long-term-treatment-of-htlv-1-associated-myelopathy-tropical-spastic-paraparesis
#15
Mineki Saito, Hiroe Sejima, Tadasuke Naito, Hiroshi Ushirogawa, Toshio Matsuzaki, Eiji Matsuura, Yuetsu Tanaka, Tatsufumi Nakamura, Hiroshi Takashima
BACKGROUND: Chemokine (C-C motif) ligand 1 (CCL1) is produced by activated monocytes/ macrophages and T-lymphocytes, and acts as a potent attractant for Th2 cells and a subset of T-regulatory (Treg) cells. Previous reports have indicated that CCL1 is overexpressed in adult T-cell leukemia cells, mediating an autocrine anti-apoptotic loop. Because CCL1 is also known as a potent chemoattractant that plays a major role in inflammatory processes, we investigated the role of CCL1 in the pathogenesis of human T-cell leukemia virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis (HAM/TSP)...
December 4, 2017: Virology Journal
https://www.readbyqxmd.com/read/29202702/c-reactive-protein-crp-but-not-the-related-pentraxins-serum-amyloid-p-and-ptx3-inhibits-the-proliferation-and-induces-apoptosis-of-the-leukemia-cell-line-mono-mac-6
#16
Wensheng Chen, Darrell Pilling, Richard H Gomer
BACKGROUND: Pentraxins are a family of highly conserved secreted proteins that regulate the innate immune system, including monocytes and macrophages. C-reactive protein (CRP) is a plasma protein whose levels can rise to 1000 μg/ml from the normal <3 μg/ ml during inflammation. RESULTS: We find that CRP inhibits proliferation of the human myeloid leukemia cell line Mono Mac 6 with an IC50 of 75 μg/ ml by inducing apoptosis of these cells. The related proteins serum amyloid P (SAP) and pentraxin 3 (PTX3) do not inhibit Mono Mac 6 proliferation...
December 4, 2017: BMC Immunology
https://www.readbyqxmd.com/read/29182633/extensive-virologic-and-immunologic-characterization-in-an-hiv-infected-individual-following-allogeneic-stem-cell-transplant-and-analytic-cessation-of-antiretroviral-therapy-a-case-study
#17
Nathan W Cummins, Stacey Rizza, Mark R Litzow, Stephane Hua, Guinevere Q Lee, Kevin Einkauf, Tae-Wook Chun, Frank Rhame, Jason V Baker, Michael P Busch, Nicolas Chomont, Patrick G Dean, Rémi Fromentin, Ashley T Haase, Dylan Hampton, Sheila M Keating, Steven M Lada, Tzong-Hae Lee, Sekar Natesampillai, Douglas D Richman, Timothy W Schacker, Stephen Wietgrefe, Xu G Yu, Joseph D Yao, John Zeuli, Mathias Lichterfeld, Andrew D Badley
BACKGROUND: Notwithstanding 1 documented case of HIV-1 cure following allogeneic stem cell transplantation (allo-SCT), several subsequent cases of allo-SCT in HIV-1 positive individuals have failed to cure HIV-1 infection. The aim of our study was to describe changes in the HIV reservoir in a single chronically HIV-infected patient on suppressive antiretroviral therapy who underwent allo-SCT for treatment of acute lymphoblastic leukemia. METHODS AND FINDINGS: We prospectively collected peripheral blood mononuclear cells (PBMCs) by leukapheresis from a 55-year-old man with chronic HIV infection before and after allo-SCT to measure the size of the HIV-1 reservoir and characterize viral phylogeny and phenotypic changes in immune cells...
November 2017: PLoS Medicine
https://www.readbyqxmd.com/read/29179486/functional-expression-of-tim-3-on-blasts-and-clinical-impact-of-its-ligand-galectin-9-in-myelodysplastic-syndromes
#18
Toshio Asayama, Hideto Tamura, Mariko Ishibashi, Yasuko Kuribayashi-Hamada, Asaka Onodera-Kondo, Namiko Okuyama, Akiko Yamada, Masumi Shimizu, Keiichi Moriya, Hidemi Takahashi, Koiti Inokuchi
T-cell immunoglobulin mucin-3 (Tim-3), an inhibitory immune checkpoint receptor, is highly expressed on acute myeloid leukemia cells and its ligand galectin-9 is reported to drive leukemic progression by binding with Tim-3. However, it remains unclear whether the Tim-3-galectin-9 pathway is associated with the pathophysiology of myelodysplastic syndromes (MDS). Thus, we investigated the expression and function of Tim-3 and the clinical impact of its ligand galectin-9 in MDS. Tim-3 expression levels on MDS blasts by CD45/side-scatter or CD34/CD45 gating were increased as MDS progressed to the advanced stage...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29179437/high-glucose-promotes-vascular-smooth-muscle-cell-proliferation-by-upregulating-proto-oncogene-serine-threonine-protein-kinase-pim-1-expression
#19
Keke Wang, Xiaojiang Deng, Zhihua Shen, Yanan Jia, Ranran Ding, Rujia Li, Xiaomin Liao, Sisi Wang, Yanping Ha, Yueqiong Kong, Yuyou Wu, Junli Guo, Wei Jie
Serine/threonine kinase proviral integration site for Moloney murine leukemia virus 1 (Pim-1) plays an essential role in arterial wall cell proliferation and associated vascular diseases, including pulmonary arterial hypertension and aortic wall neointima formation. Here we tested a role of Pim-1 in high-glucose (HG)-mediated vascular smooth muscle cell (VSMC) proliferation. Pim-1 and proliferating cell nuclear antigen (PCNA) expression levels in arterial samples from streptozotocin-induced hyperglycemia rats were increased, compared with their weak expression in normoglycemic groups...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29178667/comprehensive-review-of-post-organ-transplant-hematologic-cancers
#20
Vikas R Dharnidharka
A higher risk for a variety of cancers is among the major complications of post-transplant immunosuppression. In this part of a continuing series on cancers post-transplant, this review focuses on the hematologic cancers after solid organ transplant. Post-transplant lymphoproliferative disorders (PTLDs), which comprise the great majority of hematologic cancers, represent a spectrum of conditions that include, but are not limited to, the Hodgkin and non-Hodgkin lymphomas. The oncogenic Epstein-Barr virus is a key pathogenic driver in many PTLD cases, through known and unknown mechanisms...
November 25, 2017: American Journal of Transplantation
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