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https://www.readbyqxmd.com/read/27933619/monocyte-mediated-activation-of-endothelial-cells-occurs-only-after-binding-to-extracellular-vesicles-from-red-blood-cell-products-a-process-mediated-by-%C3%AE-integrin
#1
Marleen Straat, Maike E van Hezel, Anita Böing, Anita Tuip-De Boer, Nina Weber, Rienk Nieuwland, Robin van Bruggen, Nicole P Juffermans
BACKGROUND: Red blood cell (RBC) transfusion is associated with organ failure. The mechanism remains unknown, but may include adherence of blood cells to the microvasculature. We hypothesized that RBC-derived extracellular vesicles (EVs) interact with monocytes to activate endothelial cells. STUDY DESIGN AND METHODS: Human umbilical vein endothelial cells were incubated with supernatant from fresh and stored RBC units either containing EVs or depleted from EVs, with or without the addition of immune cells...
December 2016: Transfusion
https://www.readbyqxmd.com/read/27933510/anti-fibrotic-effects-of-salvia-miltiorrhiza-and-ligustrazine-injection-on-lx-2-cells-involved-with-increased-n-myc-downstream-regulated-gene-2-expression
#2
Jin Zheng, Li-Tian Ma, Qin-You Ren, Yue Hu, Yang Bai, Huan Bian, Yi Zhang, Yong-Chun Zhou, Ming-Hui Yang
OBJECTIVE: To investigate the effects of Salvia miltiorrhiza and Ligustrazine Injection (SML) on proliferation and apoptosis of human hepatic stellate cell LX-2 and the expression of N-myc downstream-regulated gene 2 (NDRG2, a tumor suppressor gene). METHODS: HSCs from the LX-2 cell line were cultured in vitro. The proliferative state of different initial LX-2 cell numbers was measured using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay...
December 8, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27933454/improved-production-of-adipate-with-escherichia-coli-by-reversal-of-%C3%AE-oxidation
#3
Nicolai Kallscheuer, Jochem Gätgens, Marvin Lübcke, Jörg Pietruszka, Michael Bott, Tino Polen
The linear C6 dicarboxylic acid adipic acid is an important bulk chemical in the petrochemical industry as precursor of the polymer nylon-6,6-polyamide. In recent years, efforts were made towards the biotechnological production of adipate from renewable carbon sources using microbial cells. One strategy is to produce adipate via a reversed β-oxidation pathway. Hitherto, the adipate titers were very low due to limiting enzyme activities for this pathway. In most cases, the CoA intermediates are non-natural substrates for the tested enzymes and were therefore barely converted...
December 8, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27933185/circulating-serpinb1-levels-and-clinical-features-in-patients-with-type-2-diabetes
#4
Kohzo Takebayashi, Kenji Hara, Tomoko Terasawa, Rika Naruse, Mariko Suetsugu, Takafumi Tsuchiya, Toshihiko Inukai
OBJECTIVE: The main purpose of this study was to investigate the association of serum SerpinB1 levels and various parameters in patients with type 2 diabetes. The effect of canagliflozin (a sodium glucose cotransporter 2 (SGLT2) inhibitor), which can decrease circulating insulin levels, on serum SerpinB1 levels was also investigated. A recent study suggests that the serum levels of SerpinB1, also known as monocyte neutrophil elastase inhibitor, increase with insulin resistance, may have a protective effect for pancreatic β cells, and may decrease insulin resistance...
2016: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/27933037/blad-containing-oligomer-fungicidal-activity-on-human-pathogenic-yeasts-from-the-outside-to-the-inside-of-the-target-cell
#5
Ana M Pinheiro, Alexandra Carreira, Filipe Rollo, Rui Fernandes, Ricardo B Ferreira, Sara A Monteiro
Blad polypeptide comprises residues 109-281 of Lupinus albus β-conglutin precursor. It occurs naturally as a major subunit of an edible, 210 kDa oligomer which accumulates to high levels, exclusively in the cotyledons of Lupinus seedlings between the 4th and 14th day after the onset of germination. Blad-containing oligomer (BCO) exhibits a potent and broad spectrum fungicide activity toward plant pathogens and is now on sale in the US under the tradename Fracture(TM). In this work we demonstrate its antifungal activity toward human pathogens and provide some insights on its mode of action...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27932980/tnf-%C3%AE-induced-cpla2-expression-via-nadph-oxidase-reactive-oxygen-species-dependent-nf-%C3%AE%C2%BAb-cascade-on-human-pulmonary-alveolar-epithelial-cells
#6
Chih-Chung Lin, Wei-Ning Lin, Rou-Ling Cho, Chen-Yu Wang, Li-Der Hsiao, Chuen-Mao Yang
Tumor necrosis factor-α (TNF-α) triggers activation of cytosolic phospholipase A2 (cPLA2) and then enhancing the synthesis of prostaglandin (PG) in inflammatory diseases. However, the detailed mechanisms of TNF-α induced cPLA2 expression were not fully defined in human pulmonary alveolar epithelial cells (HPAEpiCs). We found that TNF-α-stimulated increases in cPLA2 mRNA (5.2 folds) and protein (3.9 folds) expression, promoter activity (4.3 folds), and PGE2 secretion (4.7 folds) in HPAEpiCs, determined by Western blot, real-time PCR, promoter activity assay and PGE2 ELISA kit...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27932875/screening-of-long-non-coding-rna-and-tug1-inhibits-proliferation-with-tgf-%C3%AE-induction-in-patients-with-copd
#7
Wenxiang Tang, Zhenyu Shen, Jiang Guo, Shenghua Sun
OBJECTIVE: To evaluate differentially expressed long noncoding RNAs (lncRNAs) and the potential role of lncRNA TUG1 in patients with chronic obstructive pulmonary disease (COPD). METHODS: Total RNA was extracted from both COPD and non-COPD lung tissues, and microarray analysis was performed with 25,628 lncRNA probes and 20,106 mRNA probes. In addition, five up-regulated and five down-regulated lncRNAs were selected for identification using quantitative real-time polymerase chain reaction...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27932683/survival-of-bacteria-of-laboratory-animal-origin-on-cage-bedding-and-inactivation-by-hydrogen-peroxide-vapour
#8
Laurentiu Benga, W Peter M Benten, Eva Engelhardt, Christina Gougoula, Roland Schulze-Röbbecke, Martin Sager
This study aims to determine the ability of laboratory animal bacteria to resist desiccation and inactivation by hydrogen peroxide vapour (HPV) on paper bedding pieces. Bedding pieces were saturated with bacterial suspensions in water or 2% (w/v) bovine serum albumin (BSA) in water, and held in a mouse facility. Viable counts showed variable survival rates over time for the bacterial species used ([Pasteurella] pneumotropica, Muribacter muris, Pseudomonas aeruginosa, Acinetobacter redioresistens, Escherichia coli, Klebsiella oxytoca, Bordetella bronchiseptica, Bordetella hinzii, Enterococcus faecalis, β-haemolytic Streptococcus spp...
December 8, 2016: Laboratory Animals
https://www.readbyqxmd.com/read/27932593/dexamethasone-induced-intrauterine-growth-restriction-is-associated-with-altered-expressions-of-metastasis-tumor-antigens-and-cell-cycle-control-proteins-in-rat-placentas
#9
Mariam Alqaryyan, Narayana Kilarkaje, Abdeslam Mouihate, Maie D Al-Bader
Molecular mechanisms affecting placental formation in intrauterine growth-restricted (IUGR) pregnancies are not clearly understood. Since metastasis tumor antigens (MTAs) MTA1 and MTA2 promote cell proliferation and MTA3 suppresses it, we hypothesized that IUGR alters cell survival/cell death programs driven by placental MTAs. To induce IUGR, pregnant Sprague Dawley rats were given daily intraperitoneal injections of either saline or dexamethasone (0.4 mg/kg) starting from 14 days of gestation (dg) to either 19 dg or 21 dg...
December 8, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27932520/myeloid-derived-nf-%C3%AE%C2%BAb-negative-regulation-of-pu-1-and-c-ebp-%C3%AE-driven-pro-inflammatory-cytokine-production-restrains-lps-induced-shock
#10
Simone Vanoni, Yi-Ting Tsai, Amanda Waddell, Lisa Waggoner, Jared Klarquist, Senad Divanovic, Kasper Hoebe, Kris A Steinbrecher, Simon P Hogan
Sepsis is a life-threatening event predominantly caused by Gram-negative bacteria. Bacterial infection causes a pronounced macrophage (MΦ) and dendritic cell activation that leads to excessive pro-inflammatory cytokine IL-1β, IL-6 and TNF-α production (cytokine storm), resulting in endotoxic shock. Previous experimental studies have revealed that inhibiting NF-κB signaling ameliorates disease symptoms; however, the contribution of myeloid p65 in endotoxic shock remains elusive. In this study, we demonstrate increased mortality in mice lacking p65 in the myeloid lineage (p65(Δmye)) compared with wild type mice upon ultra-pure LPS challenge...
December 8, 2016: Innate Immunity
https://www.readbyqxmd.com/read/27932518/epoetin-%C3%AE-induced-pure-red-cell-aplasia-an-unintended-consequence
#11
Muhammad Masoom Javaid, Priyanka Khatri, Srinivas Subramanian
Pure red cell aplasia is a rare condition associated with the use of recombinant human erythropoietin preparations. It has predominantly been associated with the subcutaneous use of a particular epoetin-α product, Eprex, and is rarely associated with intravenous use or with other commercially available products. Only a few cases of pure red cell aplasia secondary to epoetin-β have been reported. On account of its rarity, the condition can often be missed on initial presentation, leading to unnecessary investigations and delayed diagnosis...
December 8, 2016: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/27932454/inducible-colonic-m-cells-are-dependent-on-tnfr2-but-not-lt%C3%AE-r-identifying-distinct-signaling-requirements-for-constitutive-versus-inducible-m-cells
#12
Erinn A Parnell, Erin M Walch, David D Lo
BACKGROUND AND AIMS: M cells associated with organized lymphoid tissues such as intestinal Peyer's patches provide surveillance of the intestinal lumen. Inflammation or infection in the colon can induce an M cell population associated with lymphoid infiltrates; paradoxically, induction is dependent on the inflammatory cytokine Tumor Necrosis Factor (TNF)-α. Anti-TNFα blockade is an important therapeutic in Inflammatory Bowel Disease, so understanding the effects of TNFα signaling is important in refining therapeutics...
December 7, 2016: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/27932304/vitamin-d-and-type-2-diabetes
#13
REVIEW
Paul Lips, Marelise Eekhoff, Natasja Vzn Schoor, Mirjam Oosterwerff, Renate de Jongh, Yvonne Krul-Poel, Suat Simsek
Vitamin D deficiency is associated with a decreased insulin release, insulin resistance and type 2 diabetes in experimental and epidemiological studies. Animal studies show that 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) stimulates the pancreatic β-cell to secrete insulin. The relationship between vitamin D deficiency and insulin resistance could develop through inflammation, as vitamin D deficiency is associated with increased inflammatory markers. In addition, genetic polymorphisms of vitamin D -related genes may predispose to impaired glycemic control and type 2 diabetes...
December 5, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27932249/toxicologic-effects-of-28-day-dietary-exposure-to-the-flame-retardant-1-2-dibromo-4-1-2-dibromoethyl-cyclohexane-tbech-in-fischer-rats
#14
Ivan H A Curran, Virginia Liston, Andrée Nunnikhoven, Don Caldwell, Matthew J S Scuby, Peter Pantazopoulos, Dorothea F K Rawn, Laurie Coady, Cheryl Armstrong, David E Lefebvre, Genevieve S Bondy
The brominated flame retardant TBECH is used as an additive to delay ignition and inhibit fires in construction materials and consumer goods. Trends in human exposure are not clear, although humans may be exposed to TBECH via indoor dust and air. In birds and fish there is some evidence of disruption in endocrine and reproductive parameters due to TBECH. In vitro studies indicate that TBECH is an androgen receptor agonist. In this study rats were exposed to 0, 10, 50, 250, 1250 or 5000mg/kg technical TBECH for 28days in diet, corresponding to 0, 0...
December 5, 2016: Toxicology
https://www.readbyqxmd.com/read/27932247/crystal-structure-of-the-pdz-domain-of-mouse-dishevelled-1-and-its-interaction-with-cxxc5
#15
Inhwan Lee, Sooho Choi, Ji-Hye Yun, Seolhwa Seo, Sehee Choi, Kang-Yell Choi, Weontae Lee
Dishevelled (Dvl) plays a crucial role in Wnt signaling by interacting with membrane-bound receptors and downstream molecules through its PDZ domain. CXXC5 is one of the key molecules that interacts with Dvl and negatively regulates the Wnt/β-catenin pathway in osteoblast differentiation. Recently, the Dvl-CXXC5 interaction has been identified as an excellent target for osteoporosis treatment. Therefore, it is desirable to have detailed structural information for the Dvl-CXXC5 interaction. Although solution structures of the Dvl1 PDZ domain have been reported, a high-resolution crystal structure would provide detailed sidechain information that is essential for drug development...
December 5, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27932063/toward-connecting-metabolism-to-the-exocytotic-site
#16
REVIEW
Mourad Ferdaoussi, Patrick E MacDonald
Within cells the regulated exocytosis of secretory granules controls multiple physiological functions, including endocrine hormone secretion. Release of the glucose-regulating hormone insulin from pancreatic islet β cells is critical for whole-body metabolic homeostasis. Impaired insulin secretion appears early in the progression to type 2 diabetes (T2D). Key mechanisms that control the β-cell exocytotic response, mediating the long-known but little understood metabolic amplification of insulin secretion, are becoming clearer...
December 5, 2016: Trends in Cell Biology
https://www.readbyqxmd.com/read/27932034/oncogenic-retinoic-acid-receptor-%C3%AE-promotes-human-colorectal-cancer-growth-through-simultaneously-regulating-p21-transcription-and-gsk3%C3%AE-%C3%AE-catenin-signaling
#17
Gui-Li Huang, Wei Zhang, Hong-Yue Ren, Pan Zhou, Yun Chen, Qing-Xi Chen, Dong-Yan Shen
Retinoic acid receptor α (RARα) plays important roles in the progression of several cancers such as leukemia, breast cancer, and lung cancer. In this study, we demonstrated that RARα protein was frequently overexpressed in human CRC specimens and CRC cell lines. RARα knockdown decreased cell survival, proliferation, and colony formation in vitro and tumorigenic potential in nude mice. Specifically, RARα knockdown inhibited cell cycle progression at G1 phase through upregulation of cell cycle inhibitor p21, and downregulation of cyclinD1...
December 5, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27931976/human-newborn-b-cells-mount-an-ifnar-dependent-humoral-response-to-rsv
#18
Jop Jans, Matthew Pettengill, Dhohyung Kim, Cas van der Made, Ronald de Groot, Stefanie Henriet, Marien I de Jonge, Gerben Ferwerda, Ofer Levy
This study provides evidence of a first line of human humoral defense against RSV infection in early life including the presence of natural neutralizing anti-RSV IgM as well as an IFN-β-mediated newborn B cell activation.
December 5, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27931795/ikk%C3%AE-inibition-by-a-glucosamine-derivative-enhances-maspin-expression-in-osteosarcoma-cell-line
#19
Martina Leopizzi, Rossana Cocchiola, Edoardo Milanetti, Domenico Raimondo, Laura Politi, Cesare Giordano, Roberto Scandurra, Anna Scotto d'Abusco
Chronic inflammation has been associated to cancer development by the alteration of several inflammatory pathways, such as Nuclear Factor-κB pathway. In particular, IκB kinase α (IKKα), one of two catalytic subunit of IKK complex, has been described to be associated to cancer progression and metastasis in a number of cancers. The molecular mechanism by which IKKα affects cancer progression is not yet completely clarified, anyway an association between IKKα and the expression of Maspin (Mammary Serine Protease Inhibitor or SerpinB5), a tumor suppressor protein, has been described...
December 5, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27931742/schistosoma-mansoni-antigens-alter-activation-markers-and-cytokine-profile-in-lymphocytes-of-patients-with-asthma
#20
Tarcísio Vila Verde Santana de Almeida, Jamille Souza Fernandes, Diego Mota Lopes, Lorena Santana Andrade, Sérgio Costa Oliveira, Edgar M Carvalho, Maria Ilma Araujo, Álvaro A Cruz, Luciana Santos Cardoso
: Asthma is a chronic disease characterized by airway inflammation, obstruction and hyperresponsiveness. Severe asthma affects a small proportion of subjects but results in most of the morbidity, costs and mortality associated with the disease. Studies have suggested that Schistosoma mansoni infection reduces the severity of asthma and prevent atopy. OBJECTIVE: We evaluated the ability of S. mansoni antigens, Sm29 and Sm29TSP-2 to modulate lymphocyte activation status in response to the allergen of the mite Dermatophagoides pteronyssinus (Der p1) in cell cultures of individuals with asthma...
December 5, 2016: Acta Tropica
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