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https://www.readbyqxmd.com/read/28643478/critical-role-of-tnf-inhibition-in-combination-therapy-for-elderly-mice-with-atherosclerosis
#1
Kyung-Yeon Park, Tae-Hwe Heo
We have previously shown that the combination of pravastatin and sarpogrelate is synergistically beneficial for atherosclerosis. In this study, we investigated whether the pravastatin-sarpogrelate combination was sufficient for treatment in an old mouse model of atherosclerosis or if additional intervention would be needed to address the newly included aging factor and its complex pathophysiological impact on the atherosclerogenic state. We added an anti-TNF biologic to the combination treatment cocktail because of the known pathologic roles of TNF in the aging process...
June 23, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28642177/protective-functions-of-pj34-a-parp-inhibitor-is-related-to-down-regulation-of-calpain-and-nf-%C3%AE%C2%BAb-in-a-mouse-model-of-tbi
#2
Xiaogang Tao, Xuetao Chen, Zonggang Hou, Shuyu Hao, Baiyun Liu
OBJECTIVES: Poly(ADP-ribose) polymerase (PARP), calpain, and nuclear factor-κB (NF-κB) are reported to participate in inflammatory reactions in pathological conditions and are involved in traumatic brain injury. The objective of this study was to investigate whether PARP participated in inflammation related to calpain and NF-κB in a mouse model of controlled cortical impact (CCI). METHODS: PJ34 (10 mg/kg), a selective PARP inhibitor, was administered intraperitoneally 5 min and 8 h after experimental CCI...
June 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28639574/mir-551b-5p-contributes-to-pathogenesis-of-vein-graft-failure-via-upregulating-early-growth-response-1-expression
#3
Ran Dong, Kui Zhang, Yue-Li Wang, Feng Zhang, Jian Cao, Ju-Bing Zheng, Hong-Jia Zhang
BACKGROUND: Vein graft failure (VGF) is a serious complication of coronary artery bypass graft, although the mechanism remains unclear. The study aimed to investigate the effects of microRNAs (miRNAs) on the endothelial dysfunction involved in VGF. METHODS: Human umbilical vein endothelial cells (HUVECs) were subjected to mechanical stretch stimulation to induce endothelial dysfunction. Genome-wide transcriptome profiling was performed using the Human miRNA OneArray® V4 (PhalanxBio Inc...
July 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28638179/danhong-huayu-koufuye-prevents-diabetic-retinopathy-in-streptozotocin-induced-diabetic-rats-via-antioxidation-and-anti-inflammation
#4
Wenpei Chen, Xiaolan Yao, Chenghao Zhou, Ziyang Zhang, Gang Gui, Baoqin Lin
Danhong Huayu Koufuye (DHK), a traditional Chinese prescription, is used to treat central retinal vein occlusion clinically. We previously reported that DHK prevented diabetic retinopathy (DR) in rats. Moreover, we found that it protected endothelial cells from hyperglycemia-induced apoptosis through antioxidation and anti-inflammation. Here, we investigated whether antioxidative and anti-inflammatory activities of DHK contributed to its therapeutic effect on DR in streptozotocin- (STZ-) induced diabetic rats...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28638152/combination-of-a-high-fat-diet-with-sweetened-condensed-milk-exacerbates-inflammation-and-insulin-resistance-induced-by-each-separately-in-mice
#5
Laureane Nunes Masi, Amanda Roque Martins, Amanda Rabello Crisma, Cátia Lira do Amaral, Mariana Rodrigues Davanso, Tamires Duarte Afonso Serdan, Roberta Dourado Cavalcante da Cunha de Sá, Maysa Mariana Cruz, Maria Isabel Cardoso Alonso-Vale, Rosângela Pavan Torres, Jorge Mancini-Filho, Joice Naiara Bertaglia Pereira, Marta Maria da Silva Righetti, Edson Aparecido Liberti, Sandro Massao Hirabara, Rui Curi
Obesogenic diets increase body weight and cause insulin resistance (IR), however, the association of these changes with the main macronutrient in the diet remains to be elucidated. Male C57BL/6 mice were fed with: control (CD), CD and sweetened condensed milk (HS), high-fat (HF), and HF and condensed milk (HSHF). After 2 months, increased body weight, glucose intolerance, adipocyte size and cholesterol levels were observed. As compared with CD, HS ingested the same amount of calories whereas HF and HSHF ingested less...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637901/caveolin-1-influences-lfa-1-redistribution-upon-tcr-stimulation-in-cd8-t-cells
#6
Jessica G Borger, Vicky L Morrison, Andrew Filby, Celine Garcia, Liisa M Uotila, Fabio Simbari, Susanna C Fagerholm, Rose Zamoyska
TCR stimulation by peptide-MHC complexes on APCs requires precise reorganization of molecules into the area of cellular contact to form an immunological synapse from where T cell signaling is initiated. Caveolin (Cav)1, a widely expressed transmembrane protein, is involved in the regulation of membrane composition, cellular polarity and trafficking, and the organization of signal transduction pathways. The presence of Cav1 protein in T cells was identified only recently, and its function in this context is not well understood...
June 21, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28637706/endothelial-mineralocorticoid-receptor-contributes-to-systolic-dysfunction-induced-by-pressure-overload-without-modulating-cardiac-hypertrophy-or-inflammation
#7
Ane M Salvador, M Elizabeth Moss, Mark Aronovitz, Kathleen B Mueller, Robert M Blanton, Iris Z Jaffe, Pilar Alcaide
Heart Failure (HF) is associated with increased circulating levels of aldosterone and systemic inflammation. Mineralocorticoid receptor (MR) antagonists block aldosterone action and decrease mortality in patients with congestive HF However, the molecular mechanisms underlying the therapeutic benefits of MR antagonists remain unclear. MR is expressed in all cell types in the heart, including the endothelial cells (EC), in which aldosterone induces the expression of intercellular adhesion molecule 1 (ICAM-1)...
June 2017: Physiological Reports
https://www.readbyqxmd.com/read/28636988/role-of-the-jak2-stat3-signaling-pathway-in-the-pathogenesis-of-type-2-diabetes-mellitus-with-macrovascular-complications
#8
Mengxue Yang, Mei Tian, Xuan Zhang, Jie Xu, Bo Yang, Jie Yu, Fengping Li, Ya Li, Sicheng Li, Xianwen Li
This study investigated the role of the JAK2/STAT3/SOCS pathway in type 2 diabetes mellitus (T2DM) and macrovascular complications (DV) (T2DM+DV) conditions. Human umbilical vein endothelial cells (HUVECs) were co-cultured with human monocytes (THP-1) and exposed to peripheral blood sera from 30 T2DM patients, 30 patients with T2DM+DV and 30 healthy controls; the groups were divided into the control, T2DM, DV, T2DM+AG490 and DV+AG490 groups. Chemotaxis of treated HUVECs toward THP-1 cells was assessed using Transwell migration...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28630485/acute-administration-of-catalase-targeted-to-icam-1-attenuates-neuropathology-in-experimental-traumatic-brain-injury
#9
Evan M Lutton, Roshanak Razmpour, Allison M Andrews, Lee Anne Cannella, Young-Jin Son, Vladimir V Shuvaev, Vladimir R Muzykantov, Servio H Ramirez
Traumatic brain injury (TBI) contributes to one third of injury related deaths in the US. Treatment strategies for TBI are supportive, and the pathophysiology is not fully understood. Secondary mechanisms of injury in TBI, such as oxidative stress and inflammation, are points at which intervention may reduce neuropathology. Evidence suggests that reactive oxygen species (ROS) propagate blood-brain barrier (BBB) hyperpermeability and inflammation following TBI. We hypothesized that targeted detoxification of ROS may improve the pathological outcomes of TBI...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28628220/importance-of-endothelial-dysfunction-biomarkers-in-patients-with-crimean-congo-hemorrhagic-fever
#10
Mustafa Arslan, Gürdal Yilmaz, Ahmet Mentese, Hülya Yilmaz, S Caner Karahan, Iftihar Koksal
BACKGROUND: The pathogenesis of the Crimean-Congo hemorrhagic fever (CCHF) and the cause of the hemorrhage are not yet fully understood. However, the endothelium plays a key role in the pathogenesis. The purpose of this study was to investigate endothelial dysfunction markers [asymmetrical dimethyl arginine(ADMA), endothelin 1(ET-1), thrombomodulin(TM), von Willebrand factor(vWf) and intercellular adhesion molecule(ICAM-1)] in serum in patients with CCHF and their associations with hemorrhage...
June 19, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28626343/anti-osm-antibody-inhibits-tubulointerstitial-lesion-in-a-murine-model-of-lupus-nephritis
#11
Qingjuan Liu, Yunxia Du, Kejun Li, Wei Zhang, Xiaojuan Feng, Jun Hao, Hongbo Li, Shuxia Liu
The purpose of this study was to investigate the role of oncostatin M (OSM) in tubulointerstitial lesion (TIL) in lupus nephritis (LN). We found that OSM was highly expressed in the renal tissue of LN mice. OSM is one of the interleukin-6 cytokine family members. In order to clarify the role and mechanism of OSM in LN, mice with LN were treated with anti-OSM antibody or isotype antibody. We evaluated the tubular epithelial-mesenchymal transdifferentiation (EMT) by detecting the E-cadherin, α-smooth muscle actin (α-SMA), and fibronectin (FN) expression...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28625726/pulmonary-administration-of-soluble-antigen-arrays-is-superior-to-antigen-in-treatment-of-experimental-autoimmune-encephalomyelitis
#12
Christopher Kuehl, Sharadvi Thati, Bradley Sullivan, Joshua Sestak, Michael Thompson, Teruna Siahaan, Cory Berkland
Antigen-specific immunotherapy (ASIT) has been used to hyposensitize patients to allergens and offers an enticing approach for attenuating autoimmune diseases. Applying ASIT to mucosal surfaces such as the lungs may engage unique immune response pathways to improve efficacy. Pulmonary delivery of soluble antigen arrays (SAgAs) was explored in mice with experimental autoimmune encephalomyelitis (EAE), a multiple sclerosis model. SAgAs were designed to impede immune response to autoantigen epitopes and are composed of a hyaluronan backbone with peptides PLP139-151 and LABL, a disease-causing proteolipid peptide epitope and an ICAM-1 ligand, respectively...
June 15, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28624782/g-csf-inhibits-lfa-1-mediated-cd4-t-cell-functions-by-inhibiting-lck-and-zap-70
#13
Shasha Zhao, Zhenyang Gu, Li Wang, Lixun Guan, Feiyan Wang, Nan Yang, Lan Luo, Zhe Gao, Yingwei Song, Lili Wang, Daihong Liu, Chunji Gao
In this study, we showed that G-CSF mobilization increased the frequency of T cells, specifically CD3+CD4+ T cells. G-CSF mobilization decreased the secretion of inflammatory cytokines of CD4+ T cells through the LFA-1/ICAM-1 signaling pathway, whereas it did not alter the TH1/TH2 ratio. We found that G-CSF mobilization inhibited LFA-1-mediated CD4+ T cell polarization and motility. In vitro, G-CSF stimulation also attenuated the polarization and adhesiveness of CD4+ T cells through the LFA-1/ICAM-1 interaction...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28623907/dna-methylation-dysregulations-in-rheumatic-heart-valve-disease
#14
Kangjun Shen, Hui Liu, Ran Jing, Jiangfeng Yi, Xinmin Zhou
BACKGROUND: The epigenetic changes underlying the development of rheumatic heart valve disease (RHVD) remain incompletely understood. Limited evidence suggests that abnormal DNA methylation might be involved in the pathogenesis of RHVD. In the present study, we evaluated the DNA methylation dysregulations from myocardial tissue in RHVD patients systematically. METHODS: Right atrial myocardial tissue obtained from rheumatic valvular patients who had undergone valve replacements surgery (n = 73) and were compared to healthy controls (n = 4)...
June 17, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28620995/effects-of-tilianin-on-proliferation-migration-and-tgf-%C3%AE-smad-signaling-in-rat-vascular-smooth-muscle-cells-induced-with-angiotensin-ii
#15
Wenjiang Cao, Na Hu, Yong Yuan, Jiang Cheng, Xinhong Guo, Yanfang Wang, Xinchun Wang, Ping Hu
Flavonoid Tilianin was isolated from Dracocephalum moldavica, and its pharmacological mechanism on proliferation, migration and the TGF-β/Smad signaling pathway in rat vascular smooth muscle cells (VSMCs) induced with Angiotensin II (Ang II) was systematically evaluated. Primary rat VSMCs were stimulated with Ang II to induce proliferation. The cells were then treated with Tilianin for 24 or 48 h. MTT assay and Transwell assays were used to evaluate the effects of Tilianin on proliferation and migration. The expression of intracellular proliferating cell nuclear antigen (PCNA), intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) were measured by immunohistochemistry as verification of effects on proliferation and migration...
June 16, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28615102/-effect-of-golgi-%C3%AE-mannosidase-2-gm2-gene-knockdown-on-adhesion-abilities-of-human-gastric-carcinoma-cell-line-bgc-823-and-its-mechanism
#16
Bo Zeng, Zhen Zeng, Chang Liu, Yaying Yang
Objective To investigate the effect of Golgi α-mannosidase II (GM2) gene knockdown on adhesion abilities of BGC-823 human gastric carcinoma cells. Methods Three plasmid vectors expressing GM2 shRNAs and a negative control plasmid vector were designed, constructed and then transfected into BGC-823 cells by Lipofectamine(TM) 2000. After transfection, the mRNA and protein levels of GM2 in BGC-823 cells were detected by real-time quantitative PCR (qRT-PCR) and Western blotting to evaluate the transfection efficacy...
June 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28611472/cd11a-icam-1-blockade-combined-with-il-2-targeting-therapy-causes-a-paradoxical-acceleration-of-type-1-diabetes
#17
Ekua W Brenu, Timothy J Bartley, Casey M Wright, Emma Hamilton-Williams
Enhancement of regulatory T cell (Treg) function is the goal of many immunotherapies aimed at treating type 1 diabetes (T1D). The use of IL-2 is hindered by its effects on other populations such as effector T cells and NK cells. Combination therapies aimed at suppressing effector T cells while using IL-2 to expand Tregs could be beneficial and have been trialed in T1D patients. We have investigated a combination therapy using IL-2 and αCD11a blocking antibody to simultaneously expand Tregs and suppress the activation and migration of autoreactive T cells...
June 14, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28610607/resveratrol-distinctively-modulates-the-inflammatory-profiles-of-immune-and-endothelial-cells
#18
Joseph Schwager, Nathalie Richard, Franziska Widmer, Daniel Raederstorff
BACKGROUND: The phenolic substance resveratrol (RES) is a plant metabolite known to modulate numerous physiological functions and to exert beneficial effects as a cancer-chemopreventing agent and on neurological, hepatic, and cardiovascular systems. Since the compound affects the lifespan of yeast and flies it might be an anti-aging substance. Mechanistically, RES is involved in down regulating the inflammatory response. The pleiotropic effects of RES in cells of the immune and endothelial system were examined in this study...
June 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28606376/enhanced-delivery-and-effects-of-acid-sphingomyelinase-by-icam-1-targeted-nanocarriers-in-type-b-niemann-pick-disease-mice
#19
Carmen Garnacho, Rajwinder Dhami, Melani Solomon, Edward H Schuchman, Silvia Muro
Acid sphingomyelinase deficiency in type B Niemann-Pick disease leads to lysosomal sphingomyelin storage, principally affecting lungs, liver, and spleen. Infused recombinant enzyme is beneficial, yet its delivery to the lungs is limited and requires higher dosing than liver and spleen, leading to potentially adverse reactions. Previous studies showed increased enzyme pulmonary uptake by nanocarriers targeted to ICAM-1, a protein overexpressed during inflammation. Here, using polystyrene and poly(lactic-co-glycolic acid) nanocarriers, we optimized lung delivery by varying enzyme dose and nanocarrier concentration, verified endocytosis and lysosomal trafficking in vivo, and evaluated delivered activity and effects...
June 9, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28601289/anti-inflammatory-and-immunomodulatory-potential-of-human-immunoglobulin-applied-intrathecally-in-lewis-rat-experimental-autoimmune-neuritis
#20
Kalliopi Pitarokoili, Felix Kohle, Jeremias Motte, Oluwaseun Fatoba, Xiomara Pedreiturria, Ralf Gold, Min-Suk Yoon
Intravenous human immunoglobulins dominate in the treatment of autoimmune neuropathies. We introduce intrathecal application as a new option for experimental autoimmune neuritis in Lewis rats. After immunisation with neuritogenic P2 peptide, we show a therapeutic and preventive effect of intrathecal human immunoglobulins (5-40mg/kg) on clinical and electrophysiological neuritis signs. Histology corroborated a lower degree of inflammation, demyelination, ICAM-1-dependent blood-nerve-barrier permeability and complement activation in the sciatic nerve...
August 15, 2017: Journal of Neuroimmunology
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