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https://www.readbyqxmd.com/read/28651046/a-heparan-sulfate-microarray-reveals-that-heparan-sulfate-protein-binding-exhibit-different-ligand-requirements
#1
Chengli Zong, Andre Venot, Xiuru Li, Weigang Lu, Wenyuan Xiao, Josetti Lynn Wilkes, Catherina L Salanga, Tracy M Handel, Lianchun Wang, Margreet A Wolfert, Geert-Jan Boons
Heparan sulfates (HS) are linear sulfated polysaccharides that modulate a wide range of physiological and disease-processes. Variations in HS epimerization and sulfation provide enormous structural diversity, which is believed to underpin protein binding and regulatory properties. The ligand requirements of HS-binding proteins have, however, been defined in only a few cases. We describe here a synthetic methodology that can rapidly provide a library of well-defined HS oligosaccharides. It is based on the use of modular disaccharides to assemble several selectively protected tetrasaccharides that were subjected to selective chemical modifications such as regioselective O- and N-sulfation and selective de-sulfation...
June 26, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28648091/mediators-go-together-high-production-of-cxcl9-cxcl10-ifn-%C3%AE-and-tnf-%C3%AE-in-ham-tsp
#2
Heytor Victor Pereira da Costa Neco, Vanessa Gabryelle da Silva Teixeira, Ana Carolina Lemos da Trindade, Paula Machado Ribeiro Magalhães, Virgínia Maria Barros de Lorena, Lúcio Roberto Cançado Castellano, Joelma Rodrigues de Souza, Luydson Richardson Vasconcelos, Patrícia Muniz Mendes Freire de Moura, Clarice Neuenschwander Lins de Morais
HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a chronic demyelinating and disabling syndrome caused by HTLV-1. Although the pathogenic mechanisms that lead to HAM/TSP outcome have not been elucidated, genetic and immunological factors may be involved in the myelopathy occurrence. The present study aimed to compare cytokines, chemokines and nitric oxide levels in asymptomatic and HAM/TSP HTLV-1 infected patients. The study group consisted of 21 HAM/TSP and 48 asymptomatic HTLV-1 patients...
June 24, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28642238/ager-deletion-enhances-ischemic-muscle-inflammation-neoangiogenesis-and-blood-flow-recovery-in-diabetic-mice
#3
Raquel Lopez Diez, Xiaoping Shen, Gurdip Daffu, Md Khursheed, Jiyuan Hu, Fei Song, Rosa Rosario, Yunlu Xu, Qing Li, Xiangmei Xi, Yu Shan Zou, Huilin Li, Ann Marie Schmidt, Shi Fang Yan
OBJECTIVE: Diabetic subjects are at higher risk of ischemic peripheral vascular disease. We tested the hypothesis that advanced glycation end products (AGEs) and their receptor (RAGE) block neoangiogenesis and blood flow recovery after hindlimb ischemia induced by femoral artery ligation through modulation of immune/inflammatory mechanisms. APPROACH AND RESULTS: Wild-type mice rendered diabetic with streptozotocin and subjected to unilateral femoral artery ligation displayed increased accumulation and expression of AGEs and RAGE in ischemic muscle...
June 22, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28641299/monocyte-subsets-are-differentially-lost-from-the-circulation-during-acute-inflammation-induced-by-human-experimental-endotoxemia
#4
Tamar Tak, Roger van Groenendael, Peter Pickkers, Leo Koenderman
Three human monocyte subsets are recognized with different functions in the immune system: CD14++/CD16- classical monocytes (CM), CD14++/CD16+ intermediate monocytes (IM) and CD14+/CD16++ non-classical monocytes (NCM). Increased IM and NCM percentages have been reported under inflammatory conditions, yet little is known about monocyte subsets at the onset of inflammation. The human endotoxemia model is uniquely capable of studying the first phases of acute inflammation induced by intravenous injection of 2 ng/kg bodyweight lipopolysaccharide (LPS) into healthy volunteers...
June 23, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28640248/voluntary-distance-running-prevents-tnf-mediated-liver-injury-in-mice-through-alterations-of-the-intrahepatic-immune-milieu
#5
Yvonne Huber, Nadine Gehrke, Jana Biedenbach, Susanne Helmig, Perikles Simon, Beate K Straub, Ina Bergheim, Tobias Huber, Detlef Schuppan, Peter R Galle, Marcus A Wörns, Marcus Schuchmann, Jörn M Schattenberg
Physical activity confers a broad spectrum of health benefits. Beyond the obvious role in metabolically driven diseases, the role of physical activity in acute liver injury is poorly explored. To study the role of physical activity in acute liver injury, a novel model of voluntary distance running in mice was developed and mice were subjected to acute liver injury induced by N-galactosamine (GalN) and lipopolysaccharide (LPS). Analyses included histological stains, immunoblotting, qRT-PCR and FACS analysis...
June 22, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28637505/human-lung-and-monocyte-derived-macrophages-differ-with-regard-to-the-effects-of-%C3%AE-2-adrenoceptor-agonists-on-cytokine-release
#6
Tatiana Victoni, Hélène Salvator, Charlotte Abrial, Marion Brollo, Luis Cristovão Sobrino Porto, Vincent Lagente, Emmanuel Naline, Stanislas Grassin-Delyle, Philippe Devillier
BACKGROUND: β2-adrenoceptor agonists have been shown to reduce the lipopolysaccharide (LPS)-induced cytokine release by human monocyte-derived macrophages (MDMs). We compare the expression of β2-adrenoceptors and the inhibitory effect of formoterol and salmeterol on the LPS-induced release of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and a range of chemokines (CCL2, 3, 4, and IL-8) by human lung macrophages (LMs) and MDMs. METHODS: LMs were isolated from patients undergoing resection and MDMs were obtained from blood monocytes in the presence of GM-CSF...
June 21, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28636613/in-vivo-immune-signatures-of-healthy-human-pregnancy-inherently-inflammatory-or-anti-inflammatory
#7
Caroline Graham, Rishma Chooniedass, William P Stefura, Allan B Becker, Malcolm R Sears, Stuart E Turvey, Piush J Mandhane, Padmaja Subbarao, Kent T HayGlass
Changes in maternal innate immunity during healthy human pregnancy are not well understood. Whether basal immune status in vivo is largely unaffected by pregnancy, is constitutively biased towards an inflammatory phenotype (transiently enhancing host defense) or exhibits anti-inflammatory bias (reducing potential responsiveness to the fetus) is unclear. Here, in a longitudinal study of healthy women who gave birth to healthy infants following uncomplicated pregnancies within the Canadian Healthy Infant Longitudinal Development (CHILD) cohort, we test the hypothesis that a progressively altered bias in resting innate immune status develops...
2017: PloS One
https://www.readbyqxmd.com/read/28632668/low-intensity-pulsed-ultrasound-lipus-promotes-bmp9-induced-osteogenesis-and-suppresses-inflammatory-responses-in-human-periodontal-ligament-derived-stem-cells
#8
Joji Kusuyama, Toshiaki Nakamura, Tomokazu Ohnishi, Nahoko Eiraku, Kazuyuki Noguchi, Tetsuya Matsuguchi
OBJECTIVE: We previously reported that low intensity pulsed ultrasound (LIPUS) promotes marrow stromal cell (MSC) osteogenesis and suppresses the LPS-induced inflammatory response in osteoblasts. Here, we examined the effects of LIPUS on human periodontal ligament-derived stem cells (hPDLSCs) in chronic inflammatory bone disease, such as periodontitis. MATERIALS AND METHODS: hPDLSCs were collected from 3 healthy third molars. hPDLSCs were induced to differentiate by either recombinant BMP2 or BMP9 with or without daily LIPUS treatment (20 min/d)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28629469/a-putative-molecular-network-associated-with-colon-cancer-metastasis-constructed-from-microarray-data
#9
Songtao Chu, Haipeng Wang, Miao Yu
BACKGROUND: This study aimed to identify the potential molecular network associated with colon cancer metastasis. METHODS: A gene expression profile dataset (GSE40367) downloaded from Gene Expression Omnibus was used to identify and compare differentially expressed genes (DEGs) between primary colon adenocarcinoma tissues and matched tissue samples of liver metastases of colon adenocarcinoma. After the functional analysis of the DEGs, their protein-protein interactions (PPIs) were analyzed, and the transcription factors (TFs) and microRNAs (miRNAs) that regulated these DEGs were predicted...
June 19, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28628889/the-innate-immune-response-to-lower-respiratory-tract-e-coli-infection-and-the-role-of-the-ccl2-ccr2-axis-in-neonatal-mice
#10
Sharon A McGrath-Morrow, Roland Ndeh, Joseph M Collaco, Amy K Poupore, Dustin Dikeman, Qiong Zhong, Benjamin D Singer, Franco D'Alessio, Alan Scott
Neonates have greater morbidity/mortality from lower respiratory tract infections (LRTI) compared to older children. Lack of conditioning of the pulmonary immune system due to limited environmental exposures and/or infectious challenges likely contributes to the increase susceptibility in the neonate. In this study, we sought to gain insights into the nature and dynamics of the neonatal pulmonary immune response to LRTI using a murine model. METHODS: Wildtype (WT) and Ccr2(-/-) C57BL/6 neonatal and juvenile mice received E...
June 16, 2017: Cytokine
https://www.readbyqxmd.com/read/28627644/5%C3%A2-aza%C3%A2-2-%C3%A2-deoxycytidine-promotes-migration-of-acute-monocytic-leukemia-cells-via-activation-of-ccl2%C3%A2-ccr2%C3%A2-erk-signaling-pathway
#11
Xia Xiao, Qian Xu, Yan Sun, Ziwei Lu, Rui Li, Xinxin Wang, Xin Jiang, Guirong Zhang, Yechen Xiao
5-aza‑2'-deoxycytidine (5-Aza) has been approved for clinical use in the treatment of myelodysplastic syndrome and acute myeloid leukemia (AML). It inhibits cell proliferation and induces cell differentiation by demethylating various genes, including tumor suppressor genes, transcription factors, and genes encoding cell cycle inhibitors. Although it has demonstrated efficacy in the clinic, drug resistance following 5‑Aza treatment occurs. Cell migration and invasion following 5‑Aza treatment are considered to be the key factors underlying drug resistance; however, there is currently limited information regarding the detailed mechanisms involved...
June 9, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28620381/fxyd5-is-an-essential-mediator-of-the-inflammatory-response-during-lung-injury
#12
Patricia L Brazee, Pritin N Soni, Elmira Tokhtaeva, Natalia Magnani, Alex Yemelyanov, Harris R Perlman, Karen M Ridge, Jacob I Sznajder, Olga Vagin, Laura A Dada
The alveolar epithelium secretes cytokines and chemokines that recruit immune cells to the lungs, which is essential for fighting infections but in excess can promote lung injury. Overexpression of FXYD5, a tissue-specific regulator of the Na,K-ATPase, in mice, impairs the alveolo-epithelial barrier, and FXYD5 overexpression in renal cells increases C-C chemokine ligand-2 (CCL2) secretion in response to lipopolysaccharide (LPS). The aim of this study was to determine whether FXYD5 contributes to the lung inflammation and injury...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28619088/chemokine-signals-are-crucial-for-enhanced-homing-and-differentiation-of-circulating-osteoclast-progenitor-cells
#13
Alan Sucur, Zrinka Jajic, Marinko Artukovic, Marina Ikic Matijasevic, Branimir Anic, Darja Flegar, Antonio Markotic, Tomislav Kelava, Sanja Ivcevic, Natasa Kovacic, Vedran Katavic, Danka Grcevic
BACKGROUND: The peripheral blood (PB) monocyte pool contains osteoclast progenitors (OCPs), which contribute to osteoresorption in inflammatory arthritides and are influenced by the cytokine and chemokine milieu. We aimed to define the importance of chemokine signals for migration and activation of OCPs in rheumatoid arthritis (RA) and psoriatic arthritis (PsA). METHODS: PB and, when applicable, synovial fluid (SF) samples were collected from 129 patients with RA, 53 patients with PsA, and 110 control patients in parallel to clinical parameters of disease activity, autoantibody levels, and applied therapy...
June 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28618950/mir-1-3p-inhibits-the-proliferation-and-invasion-of-bladder-cancer-cells-by-suppressing-ccl2-expression
#14
Weiwei Wang, Fujun Shen, Chunlei Wang, Wenying Lu, Jun Wei, Anquan Shang, Chunbin Wang
We attempted to analyze the effects of miR-1-3p and CCL2 on the proliferation, migration, and invasion of bladder cancer cells. A total of 18 pairs of bladder cancer tissues with corresponding adjacent tissues and the 6 cases of normal tissues were collected. The expressions of miR-1-3p and CCL2 in the cancer tissues were evaluated using quantitative real-time polymerase chain reaction and western blot. The relationship between miR-1-3p and CCL2 was assessed using luciferase reporter assay. The UM-UC-3 bladder cancer cells were transfected with CCL2 small interfering RNA and miR-1-3p mimics...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28618322/multiple-inflammatory-markers-and-15-year-incident-adl-disability-in-admixed-older-adults-the-bambui-epigen-study
#15
Maria Fernanda Lima-Costa, Juliana V M Mambrini, Karen C L Torres, Sérgio V Peixoto, Fabíola B Andrade, Cesar De Oliveira, Eduardo Tarazona-Santos, Andrea Teixeira-Carvalho, Olindo A Martins-Filho
BACKGROUND: The ability of inflammatory markers to predict disability in later life has received growing attention. However, the current evidence came predominantly from Caucasians and the role of genomic ancestry has not been investigated. OBJECTIVE: We investigated the prognostic value of multiple citokynes and chemokines for incident disability in admixed older Brazilians and whether genomic African and Native American ancestry affects the association. DESIGN: Population-based longitudinal study...
June 7, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28616206/a-systematic-review-and-meta-analysis-of-genetic-association-studies-for-the-role-of-inflammation-and-the-immune-system-in-diabetic-nephropathy
#16
Maria Tziastoudi, Ioannis Stefanidis, Georgios M Hadjigeorgiou, Konstantinos Stravodimos, Elias Zintzaras
Background: Despite the certain contribution of metabolic and haemodynamic factors in diabetic nephropathy (DN), many lines of evidence highlight the role of immunologic and inflammatory mechanisms. To elucidate the contribution of the immune system in the development of DN, we explored the contribution of gene variants (polymorphisms) in relevant pathophysiologic pathways. Methods: We selected six major pathways related to immune response from the Kyoto Encyclopaedia of Genes and Genomes database and thereafter we traced all available genetic association studies (GASs) involving gene variants in these pathways from PubMed and HuGE Navigator...
June 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28610785/chemokines-additional-to-ifn-%C3%AE-can-be-used-to-differentiate-among-mycobacterium-tuberculosis-infection-possibilities-and-provide-evidence-of-an-early-clearance-phenotype
#17
Ditthawat Nonghanphithak, Wipa Reechaipichitkul, Wises Namwat, Vivek Naranbhai, Kiatichai Faksri
Current diagnostic tests for tuberculosis (TB) remain limited in their ability to discriminate between active TB (ATB) and latent TB infection (LTBI). Early clearance (EC) of TB by individuals exposed to Mycobacterium tuberculosis is a debated phenomenon for which evidence is lacking. We measured and compared secreted chemokines in the plasma fraction from 48 ATB, 38 LTBI, 162 presumed EC and 39 healthy controls (HC) using the QuantiFERON(®)-TB Gold In-Tube assay. Single chemokine markers were limited in their ability to discriminate between ATB and LTBI: IFN-γ showed 16...
July 2017: Tuberculosis
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/28608804/phytosterols-and-omega-3-supplementation-exert-novel-regulatory-effects-on-metabolic-and-inflammatory-pathways-a-proteomic-study
#19
Carmen Lambert Judit Cubedo, Teresa Padró, Joan Sánchez-Hernández, Rosa M Antonijoan, Antonio Perez, Lina Badimon
Cardiovascular disease (CVD) remains one of the major causes of death and disability worldwide. In addition to drug treatment, nutritional interventions or supplementations are becoming a health strategy for CVD prevention. Phytosterols (PhyS) are natural components that have been shown to reduce cholesterol levels; while poly-unsaturated fatty acids (PUFA), mainly omega-3 (ω3) fatty acids, have shown to reduce triglyceride levels. Here we aimed to investigate whether the proteins in the main lipoproteins (low density lipoproteins (LDL) and high density lipoproteins (HDL)) as well as proteins in the lipid free plasma fraction (LPDP) were regulated by the intake of PhyS-milk or ω3-milk, in overweight healthy volunteers by a proteomic based systems biology approach...
June 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28607531/endogenous-il-33-deficiency-exacerbates-liver-injury-and-increases-hepatic-influx-of-neutrophils-in-acute-murine-viral-hepatitis
#20
Virginie Carrière, Muhammad Imran Arshad, Jacques Le Seyec, Benjamin Lefevre, Muhammad Farooq, Aurélien Jan, Christelle Manuel, Laurence Touami-Bernard, Catherine Lucas-Clerc, Valentine Genet, Hugues Gascan, Jean-Philippe Girard, Frédéric Chalmel, Lucie Lamontagne, Claire Piquet-Pellorce, Michel Samson
The alarmin IL-33 has been described to be upregulated in human and murine viral hepatitis. However, the role of endogenous IL-33 in viral hepatitis remains obscure. We aimed to decipher its function by infecting IL-33-deficient mice (IL-33 KO) and their wild-type (WT) littermates with pathogenic mouse hepatitis virus (L2-MHV3). The IL-33 KO mice were more sensitive to L2-MHV3 infection exhibiting higher levels of AST/ALT, higher tissue damage, significant weight loss, and earlier death. An increased depletion of B and T lymphocytes, NKT cells, dendritic cells, and macrophages was observed 48 h postinfection (PI) in IL-33 KO mice than that in WT mice...
2017: Mediators of Inflammation
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