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Interleukin 17

X M Chen, F Q Li, S Yan, X C Wu, C L Tang
OBJECTIVE: To investigate the anti-inflammation effects by activation of the cholinergic anti-inflammatory pathway and its mechanisms in non-alcoholic steatohepatitis (NASH) model mice. METHODS: 6-week-old male C57BL/6J (B6) mice were randomly divided into four groups: the first group was normal mice, injected with saline; the second group was normal mice, injected with nicotine; the third group was NASH model mice, injected with saline; the fourth group was NASH model mice, injected with nicotine...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Christopher M Celano, Eleanor E Beale, Scott R Beach, Arianna M Belcher, Laura Suarez, Shweta R Motiwala, Parul U Gandhi, Hanna Gaggin, James L Januzzi, Brian C Healy, Jeff C Huffman
OBJECTIVE: Psychological constructs are associated with cardiovascular health, but the biological mechanisms mediating these relationships are unknown. We examined relationships between psychological constructs and markers of inflammation, endothelial function, and myocardial strain in a cohort of post-acute coronary syndrome (ACS) patients. METHODS: Participants (N = 164) attended study visits 2 weeks and 6 months after ACS. During these visits, they completed self-report measures of depressive symptoms, anxiety, optimism, and gratitude; and blood samples were collected for measurement of biomarkers reflecting inflammation, endothelial function, and myocardial strain...
September 30, 2016: Psychosomatic Medicine
Julie Gueudry, Jennifer E Thorne, Rakesh Bansie, Juergen Braun, P Martin van Hagen, Bahram Bodaghi
The treatment of articular and extra-articular manifestations associated with HLA-B27 has undergone dramatic changes over the past two decades, mainly as a consequence of the introduction of biologic agents and in particular anti-tumor necrosis factor α (anti-TNFα) agents. Uveitis is known to be the most frequent extra-articular feature in HLA-B27-associated spondyloarthritides. Topical corticosteroids and cycloplegic agents remain the cornerstones of treatment. However, biologic therapy may be effective in the management of refractory or recurrent forms of uveitis...
October 17, 2016: Ocular Immunology and Inflammation
Martina Gatzka
Tumor necrosis factor alpha (TNF-α) and Interleukin 17 (IL-17) are key cytokines driving psoriasis and other inflammatory autoimmune diseases and thus represent effective targets for anti-psoriatic therapy. In a recent issue of The Journal of Pathology, Leite Dantas et al. explore a mouse model of TNF-mediated psoriasiform dermatitis and arthritis with Doxycyclin-inducible general over-expression of human TNF (ihTNFtg mice) for the contributions of macrophages and T cells in skin inflammation - with some unexpected and interesting findings...
October 17, 2016: Journal of Pathology
Joachim R Kalden
Diverse strategies to develop novel treatments for rheumatoid arthritis which specifically target those patients who do not respond to available medications, including biologics, are currently being explored. New potential therapeutic approaches which may become available as part of standard therapeutic regimens include the propagation of regulatory T cells and-in the future-of regulatory B cells. New biologic disease-modifying antirheumatic drugs (b-DMARDs) against interleukin-17 and -6, granulocyte-macrophage colony-stimulating factor, and complement component 5 are now standard components of clinical treatment programs...
June 2016: Rheumatol Ther
Philip Mease, Iain B McInnes
INTRODUCTION: Psoriatic arthritis (PsA) is an immune-mediated chronic inflammatory arthropathy associated with impaired physical function and reduced quality of life. Biologic therapies that target tumor necrosis factor (anti-TNF) have significantly improved clinical outcomes. Partial, non- and transient responses remain common comprising significant unmet clinical need. New therapies with novel modes of action are urgently required. OBJECTIVES: The interleukin (IL)-17 pathway has recently been attributed a critical role in the pathogenesis of spondyloarthritides...
June 2016: Rheumatol Ther
Fatemeh Heidarnezhad, Amir Asnaashari, Seyed Abdolrahim Rezaee, Roghayeh Ghezelsofla, Kiarash Ghazvini, Narges Valizadeh, Reza Basiri, Aghigh Ziaeemehr, Somayeh Sobhani, Houshang Rafatpanah
OBJECTIVES: Tuberculosis is one of the most important infectious diseases with high mortality rates worldwide, especially in developing countries. Interleukin17 (IL-17) is an important acquired immunity cytokine, which is mainly produced by CD4(+)TH17 cells. It can recruit neutrophils and macrophages to the infected site in the lungs. IL-23 is one of the most important inducers of IL-17. In the present study, the expressions of IL-23 and IL-17 were examined in the pathogenesis of tuberculosis...
August 2016: Iranian Journal of Basic Medical Sciences
Yinlian Wu, Mingfang Wang, Yueyong Zhu, Su Lin
BACKGROUND: The diagnostic accuracy of interleukin-6 (IL-6) in predicting bacterial infection in cirrhotic patients remains unclear. The aim of this meta-analysis is to explore the potential diagnostic value of IL-6 in cirrhotic patients. METHODS: We systematically searched PubMed, Embase (via OvidSP), Web of Science, the Cochrane Library, and Scopus for studies published from inception to October 2015. Studies were enrolled if they included assessment of the accuracy of IL-6 in the diagnosis of bacterial infection in cirrhotic patients and provided sufficient data to construct a 2 × 2 contingency table...
October 2016: Medicine (Baltimore)
Yu-Shu Huang, Christian Guilleminault, Fang-Ming Hwang, Chuan Cheng, Cheng-Hui Lin, Hsueh-Yu Li, Li-Ang Lee
Pediatric obstructive sleep apnea (OSA) is associated with chronic systemic inflammation and with cognitive impairments. This study aimed to investigate the status of proinflammatory cytokines, particularly interleukin 17 (IL-17) and interleukin 23 (IL-23) and cognition in pediatric OSA.Controls and OSA children participated in the study. Exclusion criteria were adenotonsillectomy, heart, neurological and severe psychiatric diseases, craniofacial syndromes, and obesity. Polysomnogram was followed by serum testing for inflammatory markers and neurocognitive tests such as continuous performance task (CPT) and Wisconsin card sorting test, questionnaires, analyses of plasma high-sensitivity C-reactive protein (HS-CRP), tumor necrosis factor alpha (TNF-α), interleukin 1 (IL-1), interleukin 6 (IL-6), IL-17, and IL-23...
October 2016: Medicine (Baltimore)
Y Yamada, E Vandermeulen, T Heigl, J Somers, A Vaneylen, S E Verleden, H Bellon, S De Vleeschauwer, E K Verbeken, D E Van Raemdonck, R Vos, G M Verleden, W Jungraithmayr, B M Vanaudenaerde
The single most important cause of late mortality after lung transplantation is chronic lung allograft dysfunction (CLAD). However, the pathological development of CLAD was not as simple as previously presumed and subclassification phenotypes, bronchiolitis obliterans syndrome (BOS) and restrictive CLAD (rCLAD), have been introduced. We want to re-investigate how CLAD manifests in the murine orthotopic lung transplant model and investigate the role of interleukin 17A (IL-17A) within this model. Orthotopic LTx was performed in CB57Bl6, IL-17 WT and IL-17 KO mice...
October 10, 2016: Transplant Immunology
Iain Welsby, Stanislas Goriely
Interleukin (IL)-23 plays a central role in the orchestration of inflammatory responses. Produced by dendritic cells and macrophages, this cytokine promotes the protection of the host against mucosal pathogens through the induction of IL-17 and related cytokines by lymphoid cells. Preclinical disease models and association studies in humans have also clearly demonstrated the implication of IL-23 signalling pathway in inflammatory diseases. Indeed, this cytokine is now considered as a major therapeutic target in immune-based pathologies such as psoriasis, ankylosing spondylitis or Crohn's disease...
2016: Advances in Experimental Medicine and Biology
Wenjuan Dong, Xiaojing Ma
Innate immunity represents the first line of host defense against extracellular infections. Timely initiation of inflammatory responses to invading pathogens confers host the ability to prevent, restrict, and eliminate microorganisms and further trigger adaptive immunity to provide extended eradication of the pathogens as well as long-term protection of the host from recurrent infections. During this process, various types of cytokines are required for efficient immune responses, and interleukin 17 (IL-17) is one of them...
2016: Advances in Experimental Medicine and Biology
Qi Zhong, Kai Zhou, Qiao-Li Liang, Sen Lin, Yan-Chun Wang, Xiao-Yi Xiong, Zhao-You Meng, Ting Zhao, Wen-Yao Zhu, Yuan-Rui Yang, Mao-Fan Liao, Qiu-Wen Gong, Liang Liu, Ao Xiong, Junwei Hao, Jian Wang, Qing-Wu Yang
BACKGROUND: Neuroinflammation plays a key role in intracerebral hemorrhage (ICH)-induced secondary brain injury, but the specific roles of peripheral inflammatory cells such as macrophages and lymphocytes remain unknown. The purpose of this study was to explore the roles of macrophages, T lymphocytes, and the cytokines they secrete as potential targets for treating secondary brain injury after ICH. METHODS AND RESULTS: Our results showed that peripheral macrophages and T lymphocytes successively infiltrated the brain, with macrophage counts peaking 1 day after ICH and T-lymphocyte counts peaking after 4 days...
October 11, 2016: Journal of the American Heart Association
Wang-Dong Xu, Lin-Chong Su, Qi-Bing Xie, Yi Zhao, Yi Liu
BACKGROUND: Interleukin-2 inducible T-cell kinase (ITK) is expressed in T cells, and plays an important role in autoimmune inflammatory diseases through regulating the balance of Th17/Treg. However, its role in human systemic lupus erythematosus (SLE) remains unclear. The present study aims to measure the activation status of ITK in T cells from SLE patients and healthy controls, and identify its possible correlation to disease severity. We also discuss the serum levels of Th17, Treg related cytokines including IL-17, IL-21, IL-22, IL-10, analyzing correlation between ITK and Th17/Treg related cytokines...
October 8, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
Oh Eun Kwon, Sang Hyun Park, Sung Su Kim, Haeng Seon Shim, Min Gyeong Kim, Young Il Kim, Sang Hoon Kim, Seung Geun Yeo
OBJECTIVES: Middle ear effusion has been reported to be associated with immune responses in patients with otitis media with effusion (OME). Although various cytokines are involved in immunologic responses in patients with OME, no study to date has assessed the involvement of the pro-inflammatory cytokines interleukin (IL)-17 and IL-22. This study analyzed the levels of expression of IL-17 and IL-22 in the middle ear effusion of patients with OME. METHODS: Patients aged <11 years who were diagnosed with chronic OME and underwent ventilation tube insertion from May 2013 to August 2015 were enrolled...
November 2016: International Journal of Pediatric Otorhinolaryngology
Yu Lin Tsai, Wang-Sheng Ko, Jung-Lung Hsiao, Hsin-Hung Pan, Ya-Ling Chiou
INTRODUCTION: In the pathogenesis of asthma, an imbalance between helper T (Th) 1/Th2 and Th17/Treg cells is believed to play a key role in asthmatic inflammatory responses. Some studies indicated that zinc deficiency increases inflammatory factor production and worsens asthma. However, the effects of zinc on T cell profiles to reduce inflammatory response remain unclear Objectives: We investigated the beneficial effects of zinc on isolated cell populations and cytokine levels from patients with asthma...
October 11, 2016: Clinical Respiratory Journal
Sergio Romagnani
The interleukin (IL)-4-induced gene1 (IL4I1), which encodes the L-amino acid oxidase enzyme, plays an important immunoregulatory role. Indeed, this enzyme which is produced by B cells-including neoplastic B cells-dendritic cells and macrophages has been shown to inhibit proliferation, cytotoxicity and IFN-γ production by tumor-infiltrating CD8(+) T cells, thus favoring tumor escape. Moreover, the same gene has been found to be constitutively expressed by CD4(+) T helper 17 (Th17) cells, where it down-regulates cell proliferation through a reduction of CD3 chains expression in the T-cell receptor complex, thus impairing IL-2 production, and by maintaining in the same cells a high expression of Tob1, which inhibits cell cycle entry, through a still unknown mechanism...
October 2016: European Journal of Immunology
Sharlene Velichko, Xu Zhou, Lingxiang Zhu, Johnathon David Anderson, Reen Wu, Yin Chen
In the context of the human airway, interleukin-17A (IL-17A) signaling is associated with severe inflammation, as well as protection against pathogenic infection, particularly at mucosal surfaces such as the airway. The intracellular molecule Act1 has been demonstrated to be an essential mediator of IL-17A signaling. In the cytoplasm, it serves as an adaptor protein, binding to both the intracellular domain of the IL-17 receptor as well as members of the canonical nuclear factor kappa B (NF-κB) pathway. It also has enzymatic activity, and serves as an E3 ubiquitin ligase...
2016: PloS One
Xianli Yuan, Yan Li, Xiuhe Pan, Xiao Peng, Gaihuan Song, Wenwen Jiang, Qiaoyan Gao, Mingcai Li
Interleukin (IL)-38 is a poorly characterized cytokine of the IL-1 family with anti-inflammatory activity. The role of IL-38 in liver injury remains unknown. We have investigated the potential effect of hydrodynamic-based gene delivery to express human IL-38 in mice with concanavalin A (Con A)-induced liver injury. Transfer of plasmid DNA encoding IL-38 significantly reduced hepatic toxicity and serum levels of aspartate aminotransferase and alanine aminotransferase compared with administration of a control plasmid...
October 6, 2016: International Immunopharmacology
Sabrina Zidi, Mouna Stayoussef, Bano L Alsaleh, Ezzedine Gazouani, Amel Mezlini, Bashayer H Ebrahim, Besma Yacoubi-Loueslati, Wassim Y Almawi
We investigated the association between six common and novel interleukin-6 (IL-6) polymorphisms with the risk of cervical cancer (CC) among Tunisians. Study subjects comprised 112 CC cases and 164 control women. Genotyping of IL-6 rs2069845, rs2069840, rs1474348, rs1800795, rs1800797, rs2069827 variants was done by real-time PCR, with defined clusters. The allelic and genotypic distributions of the tested IL-6 SNPs were comparable between CC patients and control women. Stratification according to FIGO staging revealed that rs1800795 homozygous major allele genotype (P = 0...
October 8, 2016: Pathology Oncology Research: POR
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