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https://www.readbyqxmd.com/read/29913443/hepatic-macrophages-are-the-cell-source-of-hepatic-procalcitonin-in-acute-liver-failure
#1
Weiyang Zheng, Bingjue Ye, Xue Liang, Liyan Shui, Guohua Lou, Yanning Liu, Min Zheng
BACKGROUND/AIMS: Serum procalcitonin (PCT) is elevated in acute liver failure (ALF), but the expression of PCT in the liver has not been elucidated. We aimed to clarify the regulation of hepatic PCT expression and the cell sources in ALF. METHODS: Human monocytic leukemia line U937 cells were treated with 12-O-tetradecanoylphorbol-l3-acetate (PMA) (100 ng/ mL) for 24 h to induce activated macrophages. In the presence of lipopolysaccharide (LPS, 1 μg/mL), activated macrophages and human hepatocyte line L02 cells were incubated with LPS or co-cultured for 0, 2, 6, and 24 h...
June 15, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29913272/sirna-lipopolymer-nanoparticles-to-arrest-growth-of-chronic-myeloid-leukemia-cells-in-vitro-and-in-vivo
#2
Juliana Valencia-Serna, Hamidreza M Aliabadi, Adam Manfrin, Mahsa Mohseni, Xiaoyan Jiang, Hasan Uludag
Therapies for the treatment of Chronic Myeloid Leukemia and other leukemias are still limited for patients at advanced stages, which allow development of point mutations in the BCR-ABL fusion gene that render CML cells insensitive to therapies. An effective non-viral delivery system based on lipopolymers is described in this study to deliver specific siRNAs to CML cells for therapeutic gene silencing. The lipopolymer, based on the lipid α-linolenic acid (αLA) substitution on low molecular weight polyethyleneimine (PEI), was used to deliver siRNA against the BCR-ABL gene and, the resultant therapeutic effect was evaluated in in vitro and in vivo CML models...
June 15, 2018: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29913249/variations-in-the-viral-genome-and-biological-properties-of-bovine-leukemia-virus-wild-type-strains
#3
Hironobu Murakami, Jumpei Uchiyama, Chihiro Suzuki, Sae Nikaido, Kaho Shibuya, Reiichiro Sato, Yosuke Maeda, Michiko Tomioka, Shin-Nosuke Takeshima, Hajime Kato, Masahiro Sakaguchi, Hiroshi Sentsui, Yoko Aida, Kenji Tsukamoto
Bovine leukemia virus (BLV) is the etiological agent of enzootic bovine leukosis (EBL), which causes enormous economic losses in the livestock industry worldwide. To reduce the economic loss caused by BLV infection, it is important to clarify the characters associated with BLV transmissibility and pathogenesis in cattle. In this study, we focused on viral characters and examined spontaneous mutations in the virus and viral properties by analyses of whole genome sequences and BLV molecular clones derived from cows with and without EBL...
June 15, 2018: Virus Research
https://www.readbyqxmd.com/read/29913235/abt-263-induced-mcl1-upregulation-depends-on-autophagy-mediated-4ebp1-downregulation-in-human-leukemia-cells
#4
Yuan-Chin Lee, Liang-Jun Wang, Chia-Hui Huang, Yi-Jun Shi, Long-Sen Chang
The present study aimed to investigate the pathway related to MCL1 expression in ABT-263-treated human leukemia U937 cells. ABT-263 upregulated MCL1 protein expression but did not affect its mRNA level and protein stability. Notably, ABT-263 increased 4EBP1 mRNA decay and thus reduced 4EBP1 expression. Overexpression of 4EBP1 abrogated ABT-263-induced MCL1 upregulation. ABT-263-induced activation of IKKα/β-NFκB axis elicited autophagy of U937 cells, leading to reduced mRNA stability of 4EBP1. Inhibition of the IKKα/β-NFκB axis or autophagy mitigated the effect of ABT-263 on 4EBP1 and MCL1 expression...
June 15, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29913129/philadelphia-chromosome-positive-lymphoblastic-lymphoma-is-it-rare-or-underdiagnosed
#5
Ahmad Alshomar, Riad El Fakih
Lymphoblastic lymphomas (LBLs) are neoplasms of precursor B and T cells; they are considered in the same spectrum as precursor B and T cell acute lymphoblastic leukemia (ALL). The World Health Organization classification classifies both LBL and ALL as one disease entity. While chromosome abnormalities are well defined with all of their therapeutic and prognostic implications in ALL, these are not well studied in LBL. Here, we describe a case of Philadelphia chromosome-positive LBL and review the available literature regarding this entity...
June 15, 2018: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/29912452/genetic-predictors-of-response-to-acupuncture-for-aromatase-inhibitor-associated-arthralgia-among-breast-cancer-survivors
#6
Timothy J Genovese, Jun J Mao
Objective: To evaluate the associations between polymorphisms in two genes, catechol-O-methyltransferase and T-cell leukemia/lymphoma 1 A, and acupuncture-mediated pain reduction among breast cancer survivors with aromatase inhibitor-associated arthralgia. Design, Setting, and Subjects: Biospecimens were obtained from 38 patients enrolled in a clinical trial of acupuncture for aromatase inhibitor-associated arthralgia in postmenopausal hormone receptor-positive breast cancer survivors...
April 17, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29912180/an-alternative-culture-method-to-maintain-genomic-hypomethylation-of-mouse-embryonic-stem-cells-using-mek-inhibitor-pd0325901-and-vitamin-c
#7
Cuiping Li, Weiyi Lai, Hailin Wang
Embryonic stem (ES) cells have the potential to differentiate into any of the three germ layers (endoderm, mesoderm, or ectoderm), and can generate many lineages for regenerative medicine. ES cell culture in vitro has long been the subject of widespread concerns. Classically, mouse ES cells are maintained in serum and leukemia inhibitory factor (LIF)-containing medium. However, under serum/LIF conditions, cells show heterogeneity in morphology and the expression profile of pluripotency-related genes, and are mostly in a metastable state...
June 1, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29912035/bone-marrow-derived-cd8-t-cells-from-pediatric-leukemia-patients-express-pd1-and-expand-ex-vivo-following-induction-chemotherapy
#8
Katie Palen, Monica Thakar, Bryon D Johnson, Jill A Gershan
Adoptive cell therapy (ACT) of chimeric antigen receptor T cells has demonstrated remarkable success for the treatment of pediatric B-cell leukemia. For patients who are not candidates for chimeric antigen receptor T-cell therapy, ACT using tumor antigen-experienced polyclonal T cells may be a treatment option. Since leukemic blasts reside in the bone marrow and bone marrow is a preferred site for homeostatic proliferation of cytotoxic memory CD8 T cells, we hypothesized that bone marrow would be a source of activated T cells...
June 14, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29911998/hif2%C3%AE-in-the-uterine-stroma-permits-embryo-invasion-and-luminal-epithelium-detachment
#9
Leona Matsumoto, Yasushi Hirota, Tomoko Saito-Fujita, Norihiko Takeda, Tomoki Tanaka, Takehiro Hiraoka, Shun Akaeda, Hidetoshi Fujita, Ryoko Shimizu-Hirota, Shota Igaue, Mitsunori Matsuo, Hirofumi Haraguchi, Mayuko Saito-Kanatani, Tomoyuki Fujii, Yutaka Osuga
Although it has been reported that hypoxia inducible factor 2 α (Hif2a), a major transcriptional factor inducible by low oxygen tension, is expressed in the mouse uterus during embryo implantation, its role in pregnancy outcomes remains unclear. This study aimed to clarify functions of uterine HIF using transgenic mouse models. Mice with deletion of Hif2a in the whole uterus (Hif2a-uKO mice) showed infertility due to implantation failure. Supplementation with progesterone (P4) and leukemia inhibitory factor (LIF) restored decidual growth arrest and aberrant position of implantation sites in Hif2a-uKO mice, respectively, but did not rescue pregnancy failure...
June 18, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29911936/inhibition-of-the-raf-1-kinase-inhibitory-protein-rkip-by-locostatin-induces-cell-death-and-reduces-the-cxcr4-mediated-migration-of-chronic-lymphocytic-leukemia-cells
#10
Kyle Crassini, Tahni Pyke, Yandong Shen, William S Stevenson, Richard I Christopherson, Stephen P Mulligan, Oliver Giles Best
The Raf-1 kinase inhibitory protein (RKIP) is an important regulatory element in multiple signaling pathways, including MAPK-ERK1/2. We investigated whether targeted disruption of RKIP is a therapeutic option for chronic lymphocytic leukemia (CLL). The RKIP inhibitor locostatin-induced apoptosis of CLL cells, irrespective of poor prognostic indications or treatment history. Locostatin down-regulated MAPK-ERK1/2 and AKT phosphorylation, decreased expression of the chemokine receptor CXCR4 (p = .04) and reduced the migratory capacity of CLL cells toward stroma-derived factor 1α (SDF-1α, p = ...
June 18, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29911929/cytomegalovirus-reactivation-can-be-a-cause-of-dat-negative-hemolytic-anemia-in-patients-with-chronic-lymphocytic-leukemia
#11
Paolo Strati, Cristina Gabutti, Philip A Thompson, Dimitrios P Kontoyiannis, Alessandra Ferrajoli
No abstract text is available yet for this article.
June 18, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29911928/samhd1-modulates-in-vitro-proliferation-of-acute-myeloid-leukemia-derived-thp-1-cells-through-the-pi3k-akt-p27-axis
#12
Karthik M Kodigepalli, Serena Bonifati, Nagaraja Tirumuru, Li Wu
Sterile alpha motif and HD domain-containing protein 1 (SAMHD1) is a mammalian dNTP hydrolase that acts as a negative regulator in the efficacy of cytarabine treatment against acute myeloid leukemia (AML). However, the role of SAMHD1 in AML development and progression remains unknown. We have reported that SAMHD1 knockout (KO) in the AML-derived THP-1 cells results in enhanced proliferation and reduced apoptosis, but the underlying mechanisms are unclear. Here we show that SAMHD1 KO in THP-1 cells increased PI3K activity and reduced expression of the tumor suppressor PTEN...
June 18, 2018: Cell Cycle
https://www.readbyqxmd.com/read/29911923/microrna-92a-3p-overexpression-in-peripheral-blood-mononuclear-cells-is-an-independent-predictor-of-prolonged-overall-survival-of-patients-with-chronic-lymphocytic-leukemia
#13
Sotirios G Papageorgiou, Marios A Diamantopoulos, Christos K Kontos, Anthi Bouchla, Diamantina Vasilatou, Efthymia Bazani, Andreas Scorilas, Vasiliki Pappa
MicroRNA-92a-3p (miR-92a-3p) is a member of the miR-17/92 cluster and the cancer-related miR-92 family. miR-92a-3p regulates important transcription factors such as hypoxia-inducible factor 1 (HIF1) and inhibits SOCS1 to enhance the anti-apoptotic STAT3/IL6 signaling route. In this study, we examined the putative prognostic value of miR-92a-3p in chronic lymphocytic leukemia (CLL). Total RNA, which was isolated from peripheral blood mononuclear cells (PBMCs) collected from 88 CLL patients and 36 non-leukemic blood donors, was polyadenylated and reverse-transcribed...
June 18, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29911897/per-and-polyfluoroalkyl-substances-impact-human-spermatogenesis-in-a-stem-cell-derived-model
#14
Alyse N Steves, Adam Turry, Brittany Gill, Danielle Clarkson-Townsend, Joshua M Bradner, Ian Bachli, W Michael Caudle, Gary W Miller, Anthony W S Chan, Charles A Easley
Per- and polyfluoroalkyl substances (PFASs) represent a highly ubiquitous group of synthetic chemicals used in products ranging from water and oil repellents and lubricants to firefighting foam. These substances can enter and accumulate in multiple tissue matrices in up to 100% of people assessed. Though animal models strongly identify these compounds as male reproductive toxicants, with exposed rodents experiencing declines in sperm count, alterations in hormones, and DNA damage in spermatids, among other adverse outcomes, human studies report conflicting conclusions as to the reproductive toxicity of these chemicals...
June 18, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29911750/use-of-mthfr-c677t-polymorphism-and-plasma-pharmacokinetics-to-predict-methotrexate-toxicity-in-patients-with-acute-lymphoblastic-leukemia
#15
Lobna Ben Mahmoud, Moez Mdhaffar, Rim Frikha, Hanen Ghozzi, Ahmed Hakim, Zouheir Sahnoun, Moez Elloumi, Khaled Zeghal
BACKGROUND: Methotrexate (MTX) is a key component of acute lymphoblastic leukemia (ALL) therapy, but it is associated with serious toxicities in a considerable number of patients. OBJECTIVES: The aim of the current study was to determine which variables were associated with MTX toxicity in children, adolescents and young adults with ALL. MATERIAL AND METHODS: In this prospective study, 35 patients with newly diagnosed ALL, treated according to the 58951 European Organization for Research and Treatment of Cancer - Children's Leukemia Group (EORTC-CLG) protocol, were prospectively enrolled...
June 18, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29911463/body-composition-of-lean-outdoor-intact-cats-vs-lean-indoor-neutered-cats-using-dual-energy-x-ray-absorptiometry
#16
Martha G Cline, Angela L Witzel, Tamberlyn D Moyers, Claudia A Kirk
Objectives The objectives for this study were to compare the body composition of adult indoor neutered domestic cats with outdoor intact cats with an ideal body condition score using dual-energy x-ray absorptiometry, and to report the body composition findings of free-roaming cats, as this has not been previously reported. Most domestic house cats differ from free-roaming cats as they are confined indoors and neutered. Indoor neutered cats have reduced activity and hormonal alterations that may result in lower muscle mass and higher body fat percentages vs outdoor intact cats, despite similar body condition scores...
June 1, 2018: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29911449/expression-of-a-novel-zmynd11-mbtd1-fusion-transcript-in-cd7-cd56-acute-myeloid-leukemia-with-t-10-17-p15-q21
#17
Katsuya Yamamoto, Kimikazu Yakushijin, Hiroya Ichikawa, Seiji Kakiuchi, Shinichiro Kawamoto, Hisayuki Matsumoto, Yuji Nakamachi, Jun Saegusa, Hiroshi Matsuoka, Hironobu Minami
No abstract text is available yet for this article.
June 18, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29911120/apoptosis-induction-in-acute-promyelocytic-leukemia-cells-through-upregulation-of-cebp%C3%AE-by-mir-182-blockage
#18
Mohammadreza Sharifi, Mahdi Fasihi-Ramandi, Abdolkarim Sheikhi, Abbas Moridnia, Maryam Saneipour
MicroRNAs (miRNAs) involved in regulation of the genes. The CCAAT/enhancer-binding protein-α ( CEBPα ) is a crucial transcription factor for normal hematopoiesis and cell cycle that frequently disrupted in human acute myeloid leukemia (AML). The miR-182 up-regulation in several malignant diseases such as AML was reported, in the other hand bioinformatics analysis revealed CEBPα targeted by miR-182.miR-182-5p inhibition in human acute promyelocytic leukemia (APL) cell line was performed by using locked nucleic acid (LNA) and subsequently miR-182-5p and CEBPα expression, apoptosis, necrosis and cell proliferation were measured...
March 2018: Molecular Biology Research Communications
https://www.readbyqxmd.com/read/29910816/a-review-of-notch-processing-with-new-insights-into-ligand-independent-notch-signaling-in-t-cells
#19
REVIEW
Martin Peter Steinbuck, Susan Winandy
The Notch receptor is an evolutionarily highly conserved transmembrane protein essential to a wide spectrum of cellular systems, and its deregulation has been linked to a vast number of developmental disorders and malignancies. Regulated Notch function is critical for the generation of T-cells, in which abnormal Notch signaling results in leukemia. Notch activation through trans -activation of the receptor by one of its ligands expressed on adjacent cells has been well defined. In this canonical ligand-dependent pathway, Notch receptor undergoes conformational changes upon ligand engagement, stimulated by a pulling-force on the extracellular fragment of Notch that results from endocytosis of the receptor-bound ligand into the ligand-expressing cell...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29910671/inhibition-of-crl-nedd8-pathway-as-a-new-approach-to-enhance-atra-induced-differentiation-of-acute-promyelocytic-leukemia-cells
#20
Shuyuan Liu, Jinhua Wan, Yunyuan Kong, Yonglu Zhang, Lagen Wan, Zhanglin Zhang
The cullin-RING ligase (CRL)-NEDD8 pathway maintains essential cellular processes, including cell cycle progression, apoptosis, autophagy, DNA repair, antigen processing and signal transduction. Growing evidence demonstrates that the alteration of the CRL-NEDD8 pathway in some cancers constitutes an attractive target for therapeutic intervention, but the roles of CRL-NEDD8 pathway in acute promyelocytic leukemia (APL) is still unclear. In the present study, we found that ATRA could decrease the expression of NEDD8-activating enzyme E1 (NAE1) and inhibit the neddylation of cullin1 and cullin3 in the APL cell line NB4...
2018: International Journal of Medical Sciences
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