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September 2015: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Qiaoyan Gao, Yan Li, Mingcai Li
IL-33, a new member of the IL-1F, is widely expressed throughout the body and can be up-regulated by stimulation with proinflammatory factors. It has been identified as a functional ligand for the plasma membrane receptor complex that is a heterodimer consisting of membrane-bound ST2L, which is a member of the IL-1R family, and IL-1RAcP. IL-33 is crucial for the induction of Th2 immune responses. Additionally, under other circumstances, it can also act as an endogenous danger signal. Recently, many studies have demonstrated that IL-33 may be related to the development and progression of fibrotic diseases...
July 2015: Journal of Leukocyte Biology
Fuli Yao, Xiao Yang, Xinyan Wang, He Wei, Anying Zhang, Hong Zhou
In the present study, we discovered a novel IL-1 family member (nIL-1F) from grass carp that possessed the ability to bind with grass carp IL-1β receptor type 1 (gcIL-1R1) and attenuate grass carp IL-1β activity in head kidney leukocytes (HKLs), suggesting that it may function as an IL-1β receptor antagonist. Grass carp nIL-1F transcript was constitutively expressed with the highest levels in some lymphoid organs, including head kidney, spleen and intestine, implying its potential in grass carp immunity...
April 2015: Developmental and Comparative Immunology
Ming Ma, Guo-Jiang Jin, Ke Yun, Run-Qing Mu, Min Zhao, Xiao-Ou Yu, Shuo Wang, Hong Shang
Inflammatory/immune cells have the power of infiltrating almost all human solid tumors and influencing all stages of carcinogenesis because of their stimulation of various cytokine subsets. This study aims to determine the correlation of single nucleotide polymorphisms in the IL-17F gene and the risk of colorectal cancer (CRC). One thousand patients diagnosed with CRC and a control group of 354 healthy controls were involved. Peripheral blood samples were collected. The PCR-RFLP method was used to detect the 7383A>G (rs2397084) and 7488T>C (rs763780) in the IL-17F gene...
February 2015: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Frank L van de Veerdonk, Mihai G Netea
The interleukin-1 (IL 1) family of ligands is associated with acute and chronic inflammation, and plays an essential role in the non-specific innate response to infection. The biological properties of IL 1 family ligands are typically pro-inflammatory. The IL 1 family has 11 family members and can be categorized into subfamilies according to the length of their precursor and the length of the propiece for each precursor (Figure 1). The IL 1 subfamily consists of IL 1α, IL 1β, and IL 33, with the longest propieces of the IL 1 family...
2013: Frontiers in Immunology
Sonia Carta, Rosa Lavieri, Anna Rubartelli
Intercellular communications control fundamental biological processes required for the survival of multicellular organisms. Secretory proteins are among the most important messengers in this network of information. Proteins destined to the extracellular environment contain a signal sequence with the necessary information to target them to the Endoplasmic Reticulum, and are released by a "classical" pathway of secretion. However, in the early 1990s it became evident that non-classical mechanisms must exist for the secretion of some proteins, which in spite of their extracellular localization and function, lack a signal peptide...
2013: Frontiers in Immunology
Alexander R Moschen, Clemens Molnar, Barbara Enrich, Sabine Geiger, Christoph F Ebenbichler, Herbert Tilg
Morbid obesity is associated with a state of chronic inflammation. Interleukin-1 family (IL-1F) cytokine members are produced by human adipose tissue in obesity. Whereas certain IL-1F members such as IL-1β or IL-18 are potently proinflammatory, others such as IL-1 receptor antagonist (IL-1Ra) or IL-37 (formerly IL-1F7) are antiinflammatory. The NLRP3 inflammasome plays a key role in the processing of bioactive IL-1β and IL-18. We investigated the effect of excessive weight loss on subcutaneous adipose tissue and liver expression of IL-1α, IL-1β, IL-18, IL-1Ra, IL-37 and NLRP3...
2011: Molecular Medicine
Hal Blumberg, Huyen Dinh, Charles Dean, Esther S Trueblood, Keith Bailey, Donna Shows, Narasimharao Bhagavathula, Muhammad Nadeem Aslam, James Varani, Jennifer E Towne, John E Sims
Psoriasis is a common immune-mediated disease in European populations; it is characterized by inflammation and altered epidermal differentiation leading to redness and scaling. T cells are thought to be the main driver, but there is also evidence for an epidermal contribution. In this article, we show that treatment of mouse skin overexpressing the IL-1 family member, IL-1F6, with phorbol ester leads to an inflammatory condition with macroscopic and histological similarities to human psoriasis. Inflammatory cytokines thought to be important in psoriasis, such as TNF-α, IL-17A, and IL-23, are upregulated in the mouse skin...
October 1, 2010: Journal of Immunology: Official Journal of the American Association of Immunologists
Tiehui Wang, Steve Bird, Antonis Koussounadis, Jason W Holland, Allison Carrington, Jun Zou, Christopher J Secombes
A novel IL-1 family member (nIL-1F) has been discovered in fish, adding a further member to this cytokine family. The unique gene organization of nIL-1F, together with its location in the genome and low homology to known family members, suggests that this molecule is not homologous to known IL-1F. Nevertheless, it contains a predicted C-terminal beta-trefoil structure, an IL-1F signature region within the final exon, a potential IL-1 converting enzyme cut site, and its expression level is clearly increased following infection, or stimulation of macrophages with LPS or IL-1beta...
July 15, 2009: Journal of Immunology: Official Journal of the American Association of Immunologists
H E Barksby, C J Nile, K M Jaedicke, J J Taylor, P M Preshaw
Porphyromonas gingivalis lipopolysaccharide (LPS) (strain W50) interacts with Toll-like receptor 2 (TLR-2) leading to cytokine expression and inflammation, and thereby plays a key role in the pathogenesis of periodontal disease. The aims of this study were to investigate gene expression of key regulatory mediators of innate immune responses in a human monocytic cell line (THP-1) to P. gingivalis LPS and to compare these results with those obtained using the TLR-4 ligand, Escherichia coli LPS. Custom-made Taqman low-density arrays were used for expression profiling of 45 different cytokine-related genes...
June 2009: Clinical and Experimental Immunology
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