نتایج جستجو برای: 17a

تعداد نتایج: 3833  

Journal: :American journal of physiology. Lung cellular and molecular physiology 2007
Shahina Wiehler David Proud

Human rhinovirus (HRV) infections are associated with exacerbations of asthma and chronic obstructive pulmonary disease that are characterized by a selective neutrophil infiltration. IL-17A, a cytokine derived primarily from activated T cells, has been linked to neutrophilic inflammation of the airways. We hypothesized that IL-17A alters the response of HRV-infected epithelial cells to modulate...

2017
Marika Orlov Victoria Dmyterko Mark M Wurfel Carmen Mikacenic

BACKGROUND CD4+ T-helper 17 (Th17) cells and Interleukin (IL)-17A play an important role in clearing pathogens in mouse models of pneumonia. We hypothesized that numbers of Th17 cells and levels of IL-17A are associated with risk for nosocomial pneumonia in humans. METHODS We collected bronchoalveolar lavage (BAL) fluid from mechanically ventilated (n = 25) patients undergoing quantitative ba...

Journal: :Infection and immunity 2010
Louise Henningsson Pernilla Jirholt Catharina Lindholm Tove Eneljung Elin Silverpil Yoichiro Iwakura Anders Linden Inger Gjertsson

Staphylococcus aureus is one of the dominant pathogens that induce septic arthritis in immunocompromised hosts, e.g., patients suffering from rheumatoid arthritis treated with immunosuppressive drugs. S. aureus-induced arthritis leads to severe joint destruction and high mortality despite antibiotic treatment. Recently, interleukin-17A (IL-17A) has been discovered to be an important mediator of...

Journal: :Journal of immunology 2012
Pushpa Pandiyan Xiang-Ping Yang Senthil S Saravanamuthu Lixin Zheng Satoru Ishihara John J O'Shea Michael J Lenardo

IL-15 is an important IL-2-related cytokine whose role in Th17 cell biology has not been fully elucidated. In this study, we show that exogenous IL-15 decreased IL-17A production in Th17 cultures. Neutralization of IL-15 using an Ab led to increases in IL-17A production in Th17 cultures. Both Il15(-/-) and Il15r(-/-) T cell cultures displayed higher frequency of IL-17A producers and higher amou...

Journal: :The Journal of clinical investigation 2009
Stefan Haak Andrew L Croxford Katharina Kreymborg Frank L Heppner Sandrine Pouly Burkhard Becher Ari Waisman

The clear association of Th17 cells with autoimmune pathogenicity implicates Th17 cytokines as critical mediators of chronic autoimmune diseases such as EAE. To study the impact of IL-17A on CNS inflammation, we generated transgenic mice in which high levels of expression of IL-17A could be initiated after Cre-mediated recombination. Although ubiquitous overexpression of IL-17A led to skin infl...

Journal: :Science translational medicine 2010
Wolfgang Hueber Dhavalkumar D Patel Thaddeus Dryja Andrew M Wright Irina Koroleva Gerard Bruin Christian Antoni Zoe Draelos Michael H Gold Patrick Durez Paul P Tak Juan J Gomez-Reino C Stephen Foster Rosa Y Kim C Michael Samson Naomi S Falk David S Chu David Callanan Quan Dong Nguyen Kristine Rose Asifa Haider Franco Di Padova

Interleukin-17A (IL-17A) is elaborated by the T helper 17 (T(H)17) subset of T(H) cells and exhibits potent proinflammatory properties in animal models of autoimmunity, including collagen-induced arthritis, experimental autoimmune encephalomyelitis, and experimental autoimmune uveitis. To determine whether IL-17A mediates human inflammatory diseases, we investigated the efficacy and safety of A...

Journal: :Journal of immunology 2007
Rolf E Kuestner David W Taft Aaron Haran Cameron S Brandt Ty Brender Karen Lum Brandon Harder Shannon Okada Craig D Ostrander James L Kreindler Shean J Aujla Brian Reardon Margaret Moore Pamela Shea Randall Schreckhise Thomas R Bukowski Scott Presnell Patricia Guerra-Lewis Julia Parrish-Novak Jeff L Ellsworth Stephen Jaspers Katherine E Lewis Mark Appleby Jay K Kolls Mark Rixon James W West Zeren Gao Steven D Levin

The proinflammatory cytokines IL-17A and IL-17F have a high degree of sequence similarity and share many biological properties. Both have been implicated as factors contributing to the progression of inflammatory and autoimmune diseases. Moreover, reagents that neutralize IL-17A significantly ameliorate disease severity in several mouse models of human disease. IL-17A mediates its effects throu...

Journal: :Circulation research 2012
Qi Gao Yang Jiang Shen Dai Bo Wang Fei Gao Chun Guo Faliang Zhu Qun Wang Xiaoyan Wang Jining Wang Yongyu Shi Yun Zhang Wanjun Chen Lining Zhang

RATIONALE Apoptosis and fatty acid-binding protein-4 (FABP4) induced-endoplasmic reticulum (ER) stress in macrophage is an important pathological process in several vascular occlusive diseases, including atherosclerosis, both of which are accelerated by lipids or inflammatory cytokines. OBJECTIVE To determine whether interleukin 17A (IL-17A) accelerates atherosclerosis through activating FABP...

Journal: :Journal of immunology 2014
Thomas Fabre Hassen Kared Scott L Friedman Naglaa H Shoukry

Activation of hepatic stellate cells (HSCs) is a key event in the initiation of liver fibrosis, characterized by enhanced extracellular matrix production and altered degradation. Activation of HSCs can be modulated by cytokines produced by immune cells. Recent reports have implicated the proinflammatory cytokine IL-17A in liver fibrosis progression. We hypothesized that IL-17A may enhance activ...

2015
So Ri Kim Hee Jung Kim Dong Im Kim Kyung Bae Lee Hae Jin Park Jae Seok Jeong Seong Ho Cho Yong Chul Lee

IL-17 is a cytokine mainly from IL-17-producing T cells, which are one of subsets of CD4+ T cells and play a role in adaptive immune system. Recent studies have demonstrated that IL-17A can act rapidly as an innate immune responder during infection before the onset of its classic adaptive immune response. This role of IL-17A in innate immune response is implicated in lipopolysaccharide (LPS)-in...

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