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Membranous tnf

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https://www.readbyqxmd.com/read/28820065/bcg-increased-membrane-expression-of-trim59-through-the-tlr2-tlr4-irf5-pathway-in-raw264-7-macrophages
#1
Jin Zheng, Tian Yuan, Yan Dongmei, Li Dong, Zhu Xun
OBJECTIVE: In our previous study, we showed that Bacillus Calmette-Guerin (BCG)-activated macrophages have the ability to directly kill tumor cells. One of the main properties of these macrophages is the high expression of tripartite motif family protein 59 (TRIM59). This study was conducted to investigate the mechanism of BCG-induced TRIM59 expression on macrophages and to identify the subcellular localization of TRIM59. METHODS: TRIM59 expression and TNF-α secretion were compared in RAW264...
August 18, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28819459/exosomes-derived-from-natural-killer-cells-exert-therapeutic-effect-in-melanoma
#2
Liya Zhu, Senthilkumar Kalimuthu, Prakash Gangadaran, Ji Min Oh, Ho Won Lee, Se Hwan Baek, Shin Young Jeong, Sang-Woo Lee, Jaetae Lee, Byeong-Cheol Ahn
Objective: Exosomes are nanovesicles that are released from normal and tumor cells and are detectable in cell culture supernatant and human biological fluids. Although previous studies have explored exosomes released from cancer cells, little is understood regarding the functions of exosomes released by normal cells. Natural killer (NK) cells display rapid immunity to metastatic or hematological malignancies, and efforts have been undertaken to clinically exploit the antitumor properties of NK cells. However, the characteristics and functions of exosomes derived from NK cells remain unknown...
2017: Theranostics
https://www.readbyqxmd.com/read/28818640/the-influence-of-physical-activity-in-the-anti-tumor-immune-response-in-experimental-breast-tumor
#3
Thiago M Bianco, Douglas R Abdalla, Chamberttan S Desidério, Sofie Thys, Cindy Simoens, John-Paul Bogers, Eddie F C Murta, Márcia A Michelin
This study aimed to investigate the influence of physical activity in innate immunity to conduce to an effective antitumoral immune response analyzing the phenotype and activation status of infiltrating cells. We analyzed the intracellular cytokines and the transcription factors of tumor infiltrating lymphocytes (TILS) and spleen leukocytes. The Nos2 gene expression was evaluated in spleen cells and futhermore the ROS production was measured and spleen cells; another cell evaluated was dendritic cells (TIDCs), their cytokines expression and membrane molecules; finally to understood the results obtained, we analysed the dendritic cells obtained from bone marrow...
August 14, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28817063/changes-in-lipids-and-inflammatory-markers-after-consuming-diets-high-in-red-meat-or-dairy-for-four-weeks
#4
Kirsty M Turner, Jennifer B Keogh, Peter J Meikle, Peter M Clifton
There is a body of evidence linking inflammation, altered lipid metabolism, and insulin resistance. Our previous research found that insulin sensitivity decreased after a four-week diet high in dairy compared to a control diet and to one high in red meat. Our aim was to determine whether a relationship exists between changes in insulin sensitivity and inflammatory biomarkers, or with lipid species. Fasting Tumor Necrosis Factor alpha (TNF-α), Tumor Necrosis Factor Receptor II (sTNF-RII), C-reactive protein (CRP), and lipids were measured at the end of each diet...
August 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28811499/the-role-of-dermcidin-isoform-2-in-the-occurrence-and-severity-of-diabetes
#5
Suman Bhattacharya, Md Mobidullah Khan, Chandradipa Ghosh, Sarbashri Bank, Smarajit Maiti
Diabetes is now epidemic worldwide. Several hundred-million peoples are presently suffering from this disease with other secondary-disorders. Stress, hypertension, sedentary life-style, carbohydrate/lipid metabolic-disorders due to genetic or environmental factors attributes to type-1 and/or type-2 diabetes. Present investigation demonstrates that stress-induced protein dermcidin isoform-2 (DCN-2) which appears in the serum of diabetic-patients play a key-role in this disease pathogenesis/severity. DCN-2 suppresses insulin production-release from liver/pancreas...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810246/gper-agonist-g1-attenuates-neuroinflammation-and-dopaminergic-neurodegeneration-in-parkinson-disease
#6
Jing Guan, Beibei Yang, Yi Fan, Ji Zhang
OBJECTIVE: Epidemiological studies have shown that women of reproductive age have much less possibility of developing Parkinson disease (PD) than men. The beneficial effect of estrogen also has been well-described in both culture and animal models of PD. G protein-coupled estrogen receptor (GPER) is a membrane-associated estrogen receptor, and displayed a neuroprotective role in a mouse model of PD. Since GPER is highly expressed in microglia, we speculate that GPER mediates the neuroprotective function of estradiol through suppressing the neuroinflammation of PD...
August 16, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/28804546/ccr7-enhances-the-angiogenic-capacity-of-esophageal-squamous-carcinoma-cells-in-vitro-via-activation-of-the-nf-%C3%AE%C2%BAb-vegf-signaling-pathway
#7
Qing-Yong Cai, Gui-You Liang, Yi-Feng Zheng, Qun-You Tan, Ru-Wen Wang, Kun Li
High levels of angiogenesis are associated with poor prognosis and a highly invasive phenotype in esophageal squamous carcinoma. C-C chemokine receptor type 7 (CCR7) is overexpressed in multiple tumor types and has been suggested to act as an oncogene and pro-angiogenic factor. This study aimed to elucidate the effect of CCR7 on the angiogenic capacity of esophageal squamous carcinoma cells in vitro. Expression of CCR7 in esophageal squamous carcinoma cell lines and normal human esophageal epithelial cell line was examined by western blotting and quantitative real-time PCR...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28804463/effect-of-oral-docosahexaenoic-acid-dha-supplementation-on-dha-levels-and-omega-3-index-in-red-blood-cell-membranes-of-breast-cancer-patients
#8
Alessio Molfino, Maria I Amabile, Sara Mazzucco, Gianni Biolo, Alessio Farcomeni, Cesarina Ramaccini, Simonetta Antonaroli, Massimo Monti, Maurizio Muscaritoli
Rationale: Docosahexaenoic acid (DHA) in cell membrane may influence breast cancer (BC) patients' prognosis, affecting tumor cells sensitivity to chemo- and radio-therapy and likely modulating inflammation. The possibility of identifying BC patients presenting with low DHA levels and/or low ability of DHA incorporation into cell membrane might help to treat this condition. Methods: We enrolled BC patients and healthy controls, recording their seafood dietary intake. DHA in form of algal oil was administered for 10 consecutive days (2 g/day)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28798145/tnf-induces-neutrophil-adhesion-via-formin-dependent-cytoskeletal-reorganization-and-activation-of-%C3%AE-integrin-function
#9
Angélica Aparecida Antoniellis Silveira, Venina Marcela Dominical, Camila Bononi Almeida, Hanan Chweih, Wilson Alves Ferreira, Cristina Pontes Vicente, Fabio Trindade Maranhão Costa, Claudio C Werneck, Fernando Ferreira Costa, Nicola Conran
Although essential for inflammatory responses, leukocyte recruitment to blood vessel walls in response to inflammatory stimuli, such as TNF-α, can contribute to vascular occlusion in inflammatory diseases, including atherosclerosis. We aimed to further characterize the mechanisms by which TNF stimulates adhesive and morphologic alterations in neutrophils. Microfluidic and intravital assays confirmed the potent effect that TNF has on human and murine neutrophil adhesion and recruitment in vitro and in vivo, respectively...
August 10, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28793219/stiff-substrates-increase-inflammation-induced-endothelial-monolayer-tension-and-permeability
#10
Rebecca Lownes Urbano, Christina Furia, Sarah Basehore, Alisa Morss Clyne
Arterial stiffness and inflammation are associated with atherosclerosis, and each have individually been shown to increase endothelial monolayer tension and permeability. The objective of this study was to determine if substrate stiffness enhanced endothelial monolayer tension and permeability in response to inflammatory cytokines. Porcine aortic endothelial cells were cultured at confluence on polyacrylamide gels of varying stiffness and treated with either tumor necrosis factor-α (TNFα) or thrombin. Monolayer tension was measured through vinculin localization at the cell membrane, traction force microscopy, and phosphorylated myosin light chain quantity and actin fiber colocalization...
August 8, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28791020/p2x7-receptor-induces-tumor-necrosis-factor-%C3%AE-converting-enzyme-activation-and-release-to-boost-tnf-%C3%AE-production
#11
Maria Barberà-Cremades, Ana I Gómez, Alberto Baroja-Mazo, Laura Martínez-Alarcón, Carlos M Martínez, Carlos de Torre-Minguela, Pablo Pelegrín
Tumor necrosis factor (TNF)-α is a major pro-inflammatory cytokine produced in response to toll-like receptor stimulation. TNF-α release is controlled by the activity of TNF-α converting enzyme (TACE) that cut membrane-bound TNF-α to shed its ectodomain as a soluble cytokine. The purinergic receptor P2X ligand-gated ion channel 7 (P2X7) is activated in response to elevated concentrations of extracellular ATP and induces different pro-inflammatory pathways in macrophages to establish an inflammatory response...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28779866/neurological-complications-of-rheumatic-disease
#12
Svetlana Lvovich, Donald P Goldsmith
Rheumatic disease represents a broad spectrum of systemic conditions manifested by multisystem involvement and mediated by autoimmunity and inflammation. Their neurological complications may occur at any point in the disease process and are diagnostically challenging. For years central nervous system (CNS) was considered as a system uniquely protected from effects of the immune system because of the blood-brain barrier. Indeed, under physiological conditions immune access to CNS is tightly regulated. Over the past decade, new scientific discoveries highlighted pathways by which immune and neurological systems interact, including a variety of mechanisms controlling permeability of blood-brain barrier, and specific roles that CD4(+) and CD8(+) T-lymphocytes play in initiation of specific adaptive immune response to neural specific antigens...
February 2017: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/28775238/n-myc-downstream-regulated-gene-1-promotes-apoptosis-in-colorectal-cancer-via-up-regulating-death-receptor-4
#13
Xian Zhang, Bo Feng, Fan Zhu, Chaoran Yu, Jiaoyang Lu, Meng Pan, Zirui He, Xiongzhi Wangpu, Jing Sun, Xiao Yang
The aim of this study was to evaluate the clinical significance of N-myc downstream-regulated gene 1 (NDRG1) in colorectal cancer (CRC) patients and to explore the mechanisms governing the role of NDRG1 in apoptosis of CRC cells. In the current study, we found that NDRG1 was a prognostic marker of CRC patients. Moreover, NDRG1 expression negatively correlated to tumor size and clinical TNM stage, suggesting that NDRG1 might act as a tumor suppressor by inhibiting proliferation or inducing apoptosis in CRC. Consistently, substantial apoptosis was observed in vitro and in vivo in the presence of NDRG1...
July 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28771713/epa-blocks-tnf-%C3%AE-induced-inhibition-of-sugar-uptake-in-caco-2-cells-via-gpr120-and-ampk
#14
Rosa Castilla-Madrigal, Jaione Barrenetxe, María J Moreno-Aliaga, María Pilar Lostao
The aim of the present work was to investigate in Caco-2 cells whether eicosapentaenoic acid (EPA), an omega-3 polyunsaturated fatty acid, could block the inhibitory effect of tumor necrosis factor-α (TNF-α) on sugar transport, and identify the intracellular signaling pathways involved. After pre-incubation of the Caco-2 cells with TNF-α and EPA for 1 h, EPA prevented the inhibitory effect of the cytokine on α-methyl-D-glucose (αMG) uptake (15 min) and on SGLT1 expression at the brush border membrane, measured by Western blot...
August 3, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28771532/the-molecular-mechanism-of-the-anticancer-effect-of-artonin-e-in-mda-mb-231-triple-negative-breast-cancer-cells
#15
Imaobong Christopher Etti, Rasedee Abdullah, Arifah Kadir, Najihah Mohd Hashim, Swee Keong Yeap, Mustapha Umar Imam, Faiqah Ramli, Ibrahim Malami, Kian Lim Lam, Ubong Etti, Peter Waziri, Marsitoh Rahman
Nature has provided us with a wide spectrum of disease healing phytochemicals like Artonin E, obtained from the root bark of Artocarpus elasticus. This molecule had been predicted to be drug-like, possessing unique medicinal properties. Despite strides made in chemotherapy, prognosis of the heterogenous aggressive triple negative breast cancer is still poor. This study was conducted to investigate the mechanism of inhibition of Artonin E, a prenylated flavonoid on MDA-MB 231 triple negative breast cancer cell, with a view of mitigating the hallmarks displayed by these tumors...
2017: PloS One
https://www.readbyqxmd.com/read/28769101/allostimulatory-capacity-of-conditionally-immortalized-proximal-tubule-cell-lines-for-bioartificial-kidney-application
#16
Milos Mihajlovic, Lambertus P van den Heuvel, Joost G Hoenderop, Jitske Jansen, Martijn J Wilmer, Annemarie J F Westheim, Wil A Allebes, Dimitrios Stamatialis, Luuk B Hilbrands, Rosalinde Masereeuw
Novel renal replacement therapies, such as a bioartificial kidney (BAK), are needed to improve current hemodialysis treatment of end-stage renal disease (ESRD) patients. As BAK applications may reveal safety concerns, we assessed the alloimmunization and related safety aspects of readily available conditionally immortalized human proximal tubule epithelial cell (ciPTEC) lines to be used in BAK. Two ciPTEC lines, originally derived from urine and kidney tissue, were characterized for the expression and secretion of relevant molecules involved in alloimmunization and inflammatory responses, such as HLA class-I, HLA-DR, CD40, CD80, CD86, as wells as soluble HLA class I and proinflammatory cytokines (IL-6, IL-8 and TNF-α)...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28767202/effects-of-parenteral-fish-oil-on-plasma-nonesterified-fatty-acids-and-systemic-inflammatory-mediators-in-dogs-following-ovariohysterectomy
#17
Kaoru Tsuruta, Robert C Backus, Amy E DeClue, Kevin L Fritsche, Fred A Mann
OBJECTIVE: To evaluate the effects of intravenous (IV) infusion of fish oil (FO) emulsion following ovariohysterectomy (OVH) on inflammatory mediators and plasma omega-3 nonesterified fatty acids (NEFA) concentrations in dogs. DESIGN: Prospective clinical study. SETTING: University teaching hospital. ANIMALS: Twenty-nine privately owned dogs undergoing routine OVH. INTERVENTIONS: Postoperative 3-hour IV infusion of saline (n = 9), FO (Omegaven, n = 10), or soybean oil (SO, intralipid, n = 10) emulsion and blood collected before, 5 and 24 hours following OVH for plasma NEFA and RBC membrane fatty acids (FAs) concentrations, leukocyte cytokine production capacity, and C-reactive protein (CRP) measurement...
August 2, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28765050/role-of-ubiquitination-and-proteolysis-in-the-regulation-of-pro-and-anti-apoptotic-tnf-r1-signaling
#18
Jürgen Fritsch, Philipp Zingler, Vinzenz Särchen, Anna Laura Heck, Stefan Schütze
Tumor Necrosis Factor Receptor 1 (TNF-R1) transmits various intracellular signaling cascades leading to diverse biological outcomes, ranging from proliferation, differentiation, survival to the induction of various forms of cell death (i.e. apoptosis, necrosis, necroptosis). These signaling pathways have to be tightly regulated. Proteolysis is an important regulatory mechanism in TNF-R1 pro-apoptotic as well as anti-apoptotic/pro-inflammatory signaling. Some key players in these signaling cascades are known (mainly the caspase-family of proteases and a previously unrecognized "lysosomal death pathway" involving cathepsins), however the interaction of proteases in the regulation of TNF signaling is still enigmatic...
July 29, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28761292/analysis-of-serum-cytokine-profile-in-pemphigus
#19
Sang Hee Lee, Won Jin Hong, Soo-Chan Kim
BACKGROUND: Pemphigus is a group of autoimmune blistering diseases affecting skin and mucous membranes. While pemphigus is an autoantibody mediated disease, the role of T cells and cytokines in the pathogenesis is being increasingly recognized. OBJECTIVE: This study was conducted to observe alterations in the serum cytokine levels of patients with pemphigus vulgaris (PV), pemphigus foliaceous (PF), paraneoplastic pemphigus (PNP) and compare with bullous pemphigoid (BP) and healthy subjects...
August 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28759152/anthocyanins-from-purple-corn-ameliorated-tnf-%C3%AE-induced-inflammation-and-insulin-resistance-in-3t3-l1-adipocytes-via-activation-of-insulin-signaling-and-enhanced-glut4-translocation
#20
Diego Luna-Vital, Matthew Weiss, Elvira Gonzalez de Mejia
SCOPE: The aim was to compare the effect of an anthocyanin-rich extract from purple corn pericarp (PCW) and pure anthocyanins on adipogenesis, inflammation and insulin resistance in 3T3-L1 adipocytes on basal and inflammatory conditions. METHODS AND RESULTS: Preadipocytes (3T3-L1) were treated during differentiation with or without PCW. Differentiated adipocytes were treated either individually or in combination with tumor necrosis factor TNF-α and PCW, or pure C3G, Pg3G, P3G...
July 31, 2017: Molecular Nutrition & Food Research
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