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European Cytokine Network

Sarah Lindberg, Moncef Zarrouk, Jan Holst, Anders Gottsäter
PURPOSE: Inflammation with leukocytic infiltration, degradation of extracellular matrix (ECM), and depletion of vascular smooth muscle cells (VSMC) are pathological hallmarks of abdominal aortic aneurysm (AAA). The aim of this study was to further evaluate relationships between AAA and inflammatory biomarkers, interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α), endothelin-1 (ET-1) and soluble urokinase-type plasminogen activator receptor (suPAR), by comparing levels in 65-year-old men with and without AAA at ultrasound screening...
September 1, 2016: European Cytokine Network
Carlos Erik Medina Santos, Carmen Nathaly López Hurtado, Bruno Rivas Santiago, Roberto Gonzalez-Amaro, Yolanda Guadalupe Cataño Cañizales, Margarita de la Luz Martínez Fierro, José Antonio Enciso-Moreno, Mariana Haydee García Hernández
The aim of this study was to evaluate the effects of the LL-37, HNP-1 and HBD2/3 peptides on cytokine and MMP production in human polymorphonuclear cells, mononuclear cells and chondrocytes. The levels of cytokines in supernatants from mononuclear and polymorphonuclear cell cultures were measured with a cytometric bead array by flow cytometry. Likewise, the levels of metalloproteinase/MMP-1, 3, and 13 were measured in supernatants from chondrocyte cultures using an ELISA. The expression of RANKL on lymphocytes was analyzed by flow cytometry...
September 1, 2016: European Cytokine Network
Frédéric Bloch, Bénédicte Charmeteau, Michael Tovey, Jean-François Meritet, Corinne Desaint, Odile Launay, Pierre Lebon
OBJECTIVE: To investigate the relationship between the response to influenza vaccination and the ability to produce proinflamatory cytokines in elderly subjects. METHODS: Whole blood samples from 25 elderly subjects collected before influenza vaccination were stimulated with the influenza vaccine in order to evaluate the secretion of five specific cytokines: TNFα, IFNα, IFNγ, IL2 and IL10. The results were correlated with the increased HAI antibody titres two weeks after vaccination...
September 1, 2016: European Cytokine Network
Magdalena Paplińska-Goryca, Patrycja Nejman-Gryz, Małgorzata Proboszcz, Rafał Krenke
Airway epithelium is an active and important component of the immunological response in the pathophysiology of obstructive lung diseases. Recent studies suggest an important role for vitamin D3 in asthma severity and treatment response. Our study evaluated the influence of an active form of vitamin D3 on the expression of selected mediators of allergic inflammation in the respiratory epithelium. Primary nasal and bronchial epithelial cells were exposed to1,25D3 for 1 hour and were then stimulated or not with IL-4, TNF-α, LPS, and poly I:C...
June 1, 2016: European Cytokine Network
Fadi H Mourad, Tamim Hamdi, Kassem A Barada, Nayef E Saadé
Increased levels of pro- and anti-inflammatory cytokines were observed in various segments of histologically-intact small intestine in animal models of acute and chronic colitis. Whether these cytokines are produced locally or spread from the inflamed colon is not known. In addition, the role of gut innervation in this upregulation is not fully understood. To examine whether cytokines are produced de novo in the small intestine in two rat models of colitis; and to investigate the role of capsaicin-sensitive primary afferents in the synthesis of these inflammatory cytokines...
June 1, 2016: European Cytokine Network
Shahriar Dabiri, Ashraf Kariminik, Derek Kennedy
Chemokines and their corresponding receptors serve as pro-inflammatory and migratory signals for immune cells. CXCR3 and its corresponding ligands, CXCL9, CXCL10 and CXCL11, participate in the induction of immune responses against several foreign antigens. Numerous cells, including macrophages, NK cells and T lymphocytes, express CXCR3 and thus, expression of the receptor and its ligands can induce activity of these important immune cells against foreign antigens, including allogeneic grafts. Several parameters of the immune system participate in the induction and stimulation of powerful immune responses against allogeneic grafts...
June 1, 2016: European Cytokine Network
Li Liu, Fu-Gang Li, Man Yang, Li Wang, Yue Chen, Li Wang, Wen Ji, Jun-Ming Fan
Renal interstitial fibrosis (RIF) is a pathological change common to a variety of chronic renal diseases, ultimately progressing to end-stage renal failure. It is believed that epithelial cell phenotype inversion plays an important role in RIF, which is characterized by expression of the mesenchymal maker α-SMA, loss of the epithelial maker E-cadherin, and enhanced secretion of extracellular matrix. IL-17, a newly discovered pro-inflammatory cytokine, has recently been reported to play an important role in tissue fibrosis, involving pulmonary, liver, intestine and skin tissues...
June 1, 2016: European Cytokine Network
Gwellaouen Bodivit, Philippe Chadebech, Isabelle Vigon, Azzedine Yacia, Nicolas Burin des Roziers, France Pirenne, Serge Fichelson
In spite of recent key improvements, in vitro mass production of erythrocytes from human stem cells is still limited by difficulties in obtaining sufficient numbers of erythroid progenitors. In fact, such progenitors are as scarce in the bone marrow as in peripheral blood. We used a two-step culture model of human cord blood-derived erythroid progenitors in the presence or absence of high-purity neuraminidase, in a serum-free, defined culture medium. Granulocytic and megakaryocytic progenitor cell expansions were also studied...
June 1, 2016: European Cytokine Network
Mehyar Mohammad Alsheblak, Nehal M Elsherbiny, Amro El-Karef, Mamdouh M El-Shishtawy
The present study was undertaken to investigate the possible protective effect of L-carnosine (CAR), an endogenous dipeptide of alanine and histidine, on carbon tetrachloride (CCl4)-induced hepatic injury. Liver injury was induced in male Sprague-Dawley rats by intraperitoneal (i.p.) injections of CCl4, twice weekly for six weeks. CAR was administered to rats daily, at dose of 250 mg/kg, i.p. At the end of six weeks, blood and liver tissue specimens were collected. Results show that CAR treatment attenuated the hepatic morphological changes, necroinflammation and fibrosis induced by CCl4, as indicated by hepatic histopathology scoring...
March 1, 2016: European Cytokine Network
Pablo Ramon Gualberto Cardoso, Emerson Vasconcelos de Andrade Lima, Mariana Modesto de Andrade Lima, Moacyr Jesus Barreto de Melo Rêgo, Claudia Diniz Lopes Marques, Ivan da Rocha Pitta, Angela Luzia Branco Pinto Duarte, Maira Galdino da Rocha Pitta
Psoriasis is a common, enigmatic, and recurrent disease. The precise etiology and pathogenesis of psoriasis are still unclear. Psoriasis has been treated as an inflammatory disorder related to an underlying Th1/Th17-dominated immune response. Interleukins are involved in the development of psoriasis lesions through Th-17-associated inflammation. Th1 and Th17 cytokines are found in skin lesions and in the peripheral blood of psoriasis patients. We sought to analyze serum levels of IL-1-β, IL-8, IL-9, IL-27, IL-29, IL-35, IFN-γ, TNF and TGF-β in patients with psoriasis and healthy control volunteers...
March 1, 2016: European Cytokine Network
Ozen Oz Gul, Soner Cander, Bulent Gul, Ebru Açıkgoz, Emre Sarandol, Canan Ersoy
This study was designed to evaluate insulin resistance and plasma levels of visfatin and resistin in obese and non-obese patients with polycystic ovary syndrome (PCOS). A total of 37 premenopausal PCOS patients with (n = 18, mean (SD) age: 27.5 (5.7 years) or without obesity (n = 19, mean (SD) age: 23.7 (3.1) years) and healthy volunteers (n = 18, mean (SD) age:29.8 (4.1) years) were included in this study. Data on clinical characteristics, glycemic parameters and lipid parameters were recorded for each subject as were plasma visfatin and resistin levels...
October 2015: European Cytokine Network
Julie G Burel, Simon H Apte, Denise L Doolan
Polyfunctional T cells that simultaneously produce the cytokines IFN-γ, IL-2 and TNF have been correlated with better clinical outcomes in various diseases. To date, cytokine polyfunctionality within T cells has been exclusively studied by intracellular cytokine staining coupled with flow cytometric analysis. Thus, further downstream interrogation of polyfunctional T cell characteristics such as transcriptomic analysis has not been possible. Here, we report the use of a flow cytometric method based on cytokine secretion assay technology to detect and isolate, for the first time, viable human polyfunctional T cells directly from in vitro stimulated whole blood samples...
October 2015: European Cytokine Network
Nie Chunjie, Nie Huijuan, Yin Zhao, Wu Jianzhao, Zhang Xiaojian
Myasthenia gravis (MG) is an autoimmune disorder characterized by antibodies directed against components of the neuromuscular junction. Currently, the diagnosis and therapeutic evaluation rely on the serum acetylcholine receptor (AchR) antibody titer, which is not reliable for monitoring. The disruption of the menus had been implicated in many immunological disorders, including MG. A quantitative PCR was used to evaluate the miR-20b level. ELISA was used to determine the levels of IL-8 and IL-25 in serum. Quantitative MG scores (QMGS) were used to examine the clinical manifestations...
September 2015: European Cytokine Network
Hubertus Himmerich, Gerd D Willmund, Peter Zimmermann, Jörg-Egbert Wolf, Antje H Bühler, Lesca M Holdt, Daniel Teupser, Kenneth C Kirkby, Ulrich Wesemann
Growing evidence suggests involvement of the tumor necrosis factor (TNF)-α system in the pathophysiology of psychiatric disorders. Research into post-traumatic stress disorder (PTSD) has investigated serum levels of TNF-α, but not to date its soluble receptors sTNF-R p55 and sTNF-R p75. We examined serum levels of TNF-α, sTNF-R p55 and sTNF-R p75 in 135 male German soldiers 70 of whom had been deployed abroad and 65 in Germany only. Post-traumatic stress symptoms were measured using the Post-traumatic Stress Diagnostic Scale (PDS) and the Trier Inventory for the Assessment of Chronic Stress (TICS)...
September 2015: European Cytokine Network
Kenan Izgi, Banu Iskender, Cagri Sakalar, Aslihan Arslanhan, Berkay Saraymen, Halit Canatan
RATIONALE: Organ- or tissue-specific antigens produced by normal tissue or by cancer cells could be used in cancer immunotherapy, to target the tumor. In our previous study, we induced T-cell-mediated, bladder-specific autoimmunity by targeting the bladder-specific protein Uroplakin 3A (UPK3A). UPK3A is a well-chosen target for developing an autoimmune response against bladder cancer since the antigen is also expressed in bladder tumors. To use this peptide, which was derived from the UPK3A protein in a bladder cancer vaccine study, it is necessary to induce a strong immune response...
April 2015: European Cytokine Network
Abdullah Alyoussef
PURPOSE: Atopic dermatitis (AD) is a chronically relapsing, pruritic, eczematous skin disorder accompanying allergic inflammation. AD is triggered by oxidative stress and immune imbalance. The effect of oral arjunolic acid (AA) on 2,4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis in mice was investigated. METHODS: Repeated epicutaneous application of DNCB to the ear and shaved dorsal skin of mice was performed to induce AD-like symptoms and skin lesions: 250mg/kg AA was given orally for three weeks to assess its anti-pruritic effects...
April 2015: European Cytokine Network
Dorota Mańkowska-Wierzbicka, Ewelina Swora-Cwynar, Barbara Poniedziałek, Zygmunt Adamski, Agnieszka Dobrowolska, Jacek Karczewski
INTRODUCTION: This study aimed to compare the accuracy of selected laboratory markers in assessing disease activity in patients with ulcerative colitis (UC). The analysis included serum IL-2, IL-4, IL-6, IL-10, IL-17, TNF-, IFN-, hsCRP, peripheral regulatory T cells, as well as fecal calprotectin and lactoferrin. PATIENTS AND METHODS: A group of 45 adults with UC was enrolled in the study. Disease activity was assessed using the Mayo endoscopic index, while for clinical activity scoring, the Clinical Activity Index (CAI) was used...
April 2015: European Cytokine Network
Yu-Ning Liu, Yun-Li Peng, Lei -Liu, Teng-Yun Wu, Yi Zhang, Yong-Jie Lian, Yuan-Yuan Yang, Keith W Kelley, Chun-Lei Jiang, Yun-Xia Wang
Depression is often preceded by exposure to stressful life events. Chronic stress causes perturbations in the immune system, and up-regulates production of proinflammatory cytokines, which has been proposed to be associated with the pathogenesis of clinical depression. However, the potential mechanisms by which stress-induced proinflammatory cytokines lead to the development of depression are not well understood. Here, we sought to screen the main proinflammatory cytokines and the potential mechanisms linking inflammation to depression-like behavior during unpredictable, chronic, mild stress (UCMS), in vivo...
January 2015: European Cytokine Network
Patrycja Libako, Julia Miller, Wojciech Nowacki, Sara Castiglioni, Jeanette A Maier, Andrzej Mazur
Magnesium is highly involved in the metabolic network such that even subtle disturbances in its homeostasis affect many cellular functions, including calcium homeostasis, signal transduction, energy metabolism, membrane stability and cell proliferation. Recently, magnesium level has been proposed to modulate the priming and activity of immune cells. We studied the behavior of antigen-presenting cells (APCs) and T lymphocytes after altering the magnesium/calcium balance. We used two different populations of primary APCs, i...
January 2015: European Cytokine Network
J Jing, T T Dou, J Q Yang, X B Chen, H L Cao, M Min, S Q Cai, M Zheng, X Y Man
Endothelin-1 (ET-1) acts as a key regulator of vasoconstriction and fibrosis. Many previous studies have focused on the role of ET-1 in scleroderma (systemic sclerosis, SSc). We investigated the effects of ET-1 on the production of extracellular matrix in SSc and normal skin fibroblasts. Primary cultured dermal fibroblasts from SSc patients and healthy controls were treated with ET-1 (25 ng/mL) for 0 min, 15 min, 1 h, 24 h, 48 h and 72 h, respectively. Our results showed that, in SSc fibroblasts, ET-1 upregulated collagen type I, connective tissue growth factor (CTGF), type I plasminogen activator inhibitor (PAI-1) and pAkt in a time-dependent manner within 72 h; in normal fibroblasts, 25 ng/mL ET-1 stimulation correlated with high levels of CTGF, PAI-1 and pAkt...
January 2015: European Cytokine Network
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