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il 17 inhibition

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https://www.readbyqxmd.com/read/28526351/docosahexaenoyl-serotonin-emerges-as-most-potent-inhibitor-of-il-17-and-ccl-20-released-by-blood-mononuclear-cells-from-a-series-of-n-acyl-serotonins-identified-in-human-intestinal-tissue
#1
Ya Wang, Michiel G J Balvers, Henk F J Hendriks, Tessa Wilpshaar, Tjarda van Heek, Renger F Witkamp, Jocelijn Meijerink
Fatty acid amides (FAAs), conjugates of fatty acids with ethanolamine, mono-amine neurotransmitters or amino acids are a class of molecules that display diverse functional roles in different cells and tissues. Recently we reported that one of the serotonin-fatty acid conjugates, docosahexaenoyl serotonin (DHA-5-HT), previously found in gut tissue of mouse and pig, attenuates the IL-23-IL-17 signaling axis in LPS-stimulated mice macrophages. However, its presence and effects in humans remained to be elucidated...
May 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28521565/interleukin-17-inhibition-role-in-psoriasis-and-inflammatory-bowel-disease
#2
Megan Hohenberger, Leah A Cardwell, Elias Oussedik, Steven R Feldman
INTRODUCTION: Interleukin 17 (IL-17) antagonism provides a highly effective approach for treating psoriasis. Exacerbations of inflammatory bowel disease have been reported in anti-IL-17 psoriasis trials. AIM: To characterize the relationship between IL-17 inhibition and inflammatory bowel disease. METHODS: A review of English-language articles was performed. Search terms included IL-17, psoriasis, inflammatory bowel disease, secukinumab, ixekizumab, and brodalumab...
May 18, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28521477/t-cell-immunity-induced-by-a-bivalent-salmonella-based-ceacam6-and-4-1bbl-vaccines-in-a-rat-colorectal-cancer-model
#3
Chunhui Jin, Xiaoqing Duan, Yingying Liu, Jianhong Zhu, Ke Zhang, Yuanting Zhang, Tingting Xia, Yajun Fei, Jianxin Ye
The present study investigated the anti-tumor mechanisms of recombinant non-specific cross-reacting antigen (CEACAM6) and 4-1BB ligand (4-1BBL) Salmonella-based vaccines, and the effect that these vaccinations have on memory T cells and T helper (Th) cell polarization. Colon tumors were induced in rats via 1,2-dimethylhydrazine (DMH) injections. Rats were then treated with injections of attenuated Salmonella typhimurium carrying pIRES-CEACAM6, pIRES-4-1BBL or pIRES-CEACAM6-4-1BBL. In total, 4 vaccine injections, one every other week, were administered during the 8 weeks subsequent to the DMH injection...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521432/interleukin-17-augments-tumor-necrosis-factor-%C3%AE-mediated-increase-of-hypoxia-inducible-factor-1%C3%AE-and-inhibits-vasodilator-stimulated-phosphoprotein-expression-to-reduce-the-adhesion-of-breast-cancer-cells
#4
Kuang Changchun, Hu Pengchao, Su Ke, Wang Ying, Wei Lei
Interleukin-17 (IL-17) and tumor necrosis factor (TNF)-α are able to cooperatively alter the expression levels of a number of genes. In the present study, the mRNA expression levels of hypoxia-inducible factor (HIF)-1α were analyzed in MDA-MB-231 breast cancer cells following treatment with IL-17, TNF-α or the combination of IL-17 and TNF-α. The protein expression levels of HIF-1α and vasodilator-stimulated phosphoprotein (VASP) were evaluated using western blot analysis. The adhesive ability of the cells was determined using an MTT assay following treatment with HIF-1α-small interfering RNA and short hairpin RNA-VASP that were used to suppress the expression levels of HIF-1α and VASP protein, respectively...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28515358/irf5-distinguishes-severe-asthma-in-humans-and-drives-th1-phenotype-and-airway-hyperreactivity-in-mice
#5
Timothy B Oriss, Mahesh Raundhal, Christina Morse, Rachael E Huff, Sudipta Das, Rachel Hannum, Marc C Gauthier, Kathryn L Scholl, Krishnendu Chakraborty, Seyed M Nouraie, Sally E Wenzel, Prabir Ray, Anuradha Ray
Severe asthma (SA) is a significant problem both clinically and economically, given its poor response to corticosteroids (CS). We recently reported a complex type 1-dominated (IFN-γ-dominated) immune response in more than 50% of severe asthmatics despite high-dose CS treatment. Also, IFN-γ was found to be critical for increased airway hyperreactivity (AHR) in our model of SA. The transcription factor IRF5 expressed in M1 macrophages can induce a Th1/Th17 response in cocultured human T cells. Here we show markedly higher expression of IRF5 in bronchoalveolar lavage (BAL) cells of severe asthmatics as compared with that in cells from milder asthmatics or healthy controls...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28514770/mm-bmscs-induce-na%C3%A3-ve-cd4-t-lymphocytes-dysfunction-through-fibroblast-activation-protein-%C3%AE
#6
Xiaofei Wu, Yadan Wang, Jian Xu, Ting Luo, Jun Deng, Yu Hu
BACKGROUND: The tumor microenvironment plays a major role in multiple myelomas (MM). MM-BMSCs (bone marrow mesenchymal stromal cells) can support tumor growth and immune surveillance escape. On the other hand, fibroblast activation protein α, expressed by cancer stroma cells including BMSCs, has been shown to potentiate epithelial cancers growth and immune suppression. RESULTS: MM-BMSC inhibited proliferation of T cells (P = 0.0138), promoted senescence of T cells (P < 0...
April 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28513593/jak3-deficiency-blocks-innate-lymphoid-cell-development
#7
M L Robinette, M Cella, J B Telliez, T K Ulland, A D Barrow, K Capuder, S Gilfillan, L-L Lin, L D Notarangelo, M Colonna
Loss-of-function mutations in the tyrosine kinase JAK3 cause autosomal recessive severe combined immunodeficiency (SCID). Defects in this form of SCID are restricted to the immune system, which led to the development of immunosuppressive JAK inhibitors. We find that the B6.Cg-Nr1d1(tm1Ven)/LazJ mouse line purchased from Jackson Laboratories harbors a spontaneous mutation in Jak3, generating a SCID phenotype and an inability to generate antigen-independent professional cytokine-producing innate lymphoid cells (ILCs)...
May 17, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28508433/an-investigation-of-the-anti-inflammatory-effects-and-a-potential-biomarker-of-pi3k%C3%AE-inhibition-in-copd-t-cells
#8
Abid Khan, Thomas Southworth, Sally Worsley, Srividya Sriskantharajah, Augustin Amour, Edith M Hessel, Dave Singh
Lymphocyte numbers are increased in the lungs of chronic obstructive pulmonary disease (COPD) patients. Phosphatidylinositol-3-kinase delta (PI3Kδ) is involved in lymphocyte activation. We investigated the effect of PI3Kδ inhibition on cytokine release from COPD lymphocytes. We also evaluated phosphorylated ribosomal S6 protein (rS6) as a potential biomarker of PI3Kδ activation. Peripheral blood mononuclear cells (PBMCs) and bronchoalveolar lavage (BAL) cells isolated from healthy never smokers (HNS), smokers (S) and COPD patients were stimulated to induce a T cell receptor response...
May 15, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28506283/prolactin-blocks-the-expression-of-receptor-activator-of-nuclear-factor-%C3%AE%C2%BAb-ligand-and-reduces-osteoclastogenesis-and-bone-loss-in-murine-inflammatory-arthritis
#9
Maria G Ledesma-Colunga, Norma Adán, Georgina Ortiz, Mariana Solís-Gutiérrez, Fernando López-Barrera, Gonzalo Martínez de la Escalera, Carmen Clapp
BACKGROUND: Prolactin (PRL) reduces joint inflammation, pannus formation, and bone destruction in rats with polyarticular adjuvant-induced arthritis (AIA). Here, we investigate the mechanism of PRL protection against bone loss in AIA and in monoarticular AIA (MAIA). METHODS: Joint inflammation, trabecular bone loss, and osteoclastogenesis were evaluated in rats with AIA treated with PRL (via osmotic minipumps) and in mice with MAIA that were null (Prlr-/-) or not (Prlr+/+) for the PRL receptor...
May 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28504577/lactobacillus-fermentum-im12-attenuates-inflammation-in-mice-by-inhibiting-nf-%C3%AE%C2%BAb-stat3-signalling-pathway
#10
S-M Lim, H M Jang, S-E Jang, M J Han, D-H Kim
In the present study, we isolated Lactobacillus fermentum IM12 from human gut microbiota, which strongly inhibited interleukin (IL)-6 expression and STAT3 activation in lipopolysaccharide (LPS)-stimulated murine peritoneal macrophages, and examined its anti-inflammatory effect in mice with carrageenan-induced hind-paw oedema (CIE) or 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis (TIC). Oral administration of IM12 (0.2×10(9), 1×10(9) or 5×10(9) cfu/mouse, once a day for 3 days) in mice with CIE significantly suppressed the increase of oedema volume and thickness, as well as myeloperoxidase activity and IL-6, IL-17, NO, and prostaglandin E2 levels in the carrageenan-stimulated paw...
May 15, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28503424/interleukin-13-and-age-related-macular-degeneration
#11
Bo Fu, Zhe-Li Liu, Han Zhang, Feng Gu
AIM: o identify the effects of interleukin (IL)-13 on retinal pigment epithelial (RPE) cells and the IL-13 level in aqueous humor of age-related macular degeneration (AMD) patients. METHODS: IL-13 levels in aqueous humor specimens from AMD patients were detected with enzyme-linked immunosorbent assay (ELISA). ARPE-19 cells were treated with 10 ng/mL IL-13 for 12, 24, and 48h. The cell proliferaton was evaluated by the MTS method. The mRNA and protein levels of α-SMA and ZO-1 were evaluated with quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot respectively...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28499587/the-phosphodiesterase-4-inhibitor-apremilast-inhibits-th1-but-promotes-th17-responses-induced-by-6-sulfo-lacnac-slan-dendritic-cells
#12
Stephanie Oehrl, Hridayesh Prakash, Annette Ebling, Nina Trenkler, Priscila Wölbing, Anja Kunze, Thomas Döbel, Marc Schmitz, Alexander Enk, Knut Schäkel
BACKGROUND: The phosphodiesterase 4 (PDE4) inhibitor apremilast increases cellular cAMP levels and has proven effective in the treatment of psoriasis and psoriasis arthritis. We recently described 6-sulfo LacNAc dendritic cells (slanDCs) as immature DCs in blood and as a subset of inflammatory dermal DCs in psoriasis with a pronounced capacity to produce proinflammatory cytokines and to program Th17/Th1 T cell responses. OBJECTIVE: The aim of this study was to investigate possible immune regulatory effects of the PDE4 inhibitor apremilast on slanDCs...
April 20, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28499194/quercetin-ameliorates-imiquimod-induced-psoriasis-like-skin-inflammation-in-mice-via-the-nf-%C3%AE%C2%BAb-pathway
#13
Haiming Chen, Chuanjian Lu, Huazhen Liu, Maojie Wang, Hui Zhao, Yuhong Yan, Ling Han
Quercetin (QC) is a dietary flavonoid abundant in many natural plants. A series of studies have shown that it has been shown to exhibit several biological properties, including anti-inflammatory, anti-oxidant, cardio-protective, vasodilatory, liver-protective and anti-cancer activities. However, so far the possible therapeutic effect of QC on psoriasis has not been reported. The present study was undertaken to evaluate the potential beneficial effect of QC in psoriasis using a generated imiquimod (IMQ)-induced psoriasis-like mouse model, and to further elucidate its underlying mechanisms of action...
May 9, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28492360/resveratrol-inhibits-periodontitis-related-bone-loss-in-rats-submitted-to-cigarette-smoke-inhalation
#14
Fernanda V Ribeiro, Danilo S Pino, Felipe C Franck, Bruno B Benatti, Howard Tenenbaum, Dip Perio, John E Davies, Suzana P Pimentel, Renato C Casarin, Fabiano R Cirano, Marcio Z Casati
BACKGROUND: Alternative therapeutic approaches have been explored in order to modulate the host's response to periodontal disease. The knowledge of new strategies to treat periodontitis is particularly relevant in patients presenting augmented risk to periodontitis, as smokers. The aim of this study was to investigate the impact of Resveratrol (RESV) on the progression of experimental periodontitis (EP) in the presence of cigarette smoke inhalation (CSI). METHODS: Rats were assigned to: CSI+RESV(n=20); CSI+placebo(n=20); Non-CSI(n=20)...
May 11, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28490801/dendritic-cells-provide-a-therapeutic-target-for-synthetic-small-molecule-analogues-of-the-parasitic-worm-product-es-62
#15
Felicity E Lumb, James Doonan, Kara S Bell, Miguel A Pineda, Marlene Corbet, Colin J Suckling, Margaret M Harnett, William Harnett
ES-62, a glycoprotein secreted by the parasitic filarial nematode Acanthocheilonema viteae, subverts host immune responses towards anti-inflammatory phenotypes by virtue of covalently attached phosphorylcholine (PC). The PC dictates that ES-62 exhibits protection in murine models of inflammatory disease and hence a library of drug-like PC-based small molecule analogues (SMAs) was synthesised. Four sulfone-containing SMAs termed 11a, 11e, 11i and 12b were found to reduce mouse bone marrow-derived dendritic cell (DC) pathogen-associated molecular pattern (PAMP)-induced pro-inflammatory cytokine production, inhibit NF-κB p65 activation, and suppress LPS-induced up-regulation of CD40 and CD86...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28487742/serum-cytokine-profile-in-a-patient-diagnosed-with-dysferlinopathy
#16
Svetlana F Khaiboullina, Ekaterina V Martynova, Sergey N Bardakov, Mikhail O Mavlikeev, Ivan A Yakovlev, Arthur A Isaev, Roman V Deev, Albert A Rizvanov
Limb-girdle muscular dystrophy type 2 (LGMD2B) is a mild form of dysferlinopathy, characterized by limb weakness and wasting. It is an autosomal recessive disease, with currently 140 mutations in the LGMD2B gene identified. Lack of functional dysferlin inhibits muscle fiber regeneration in voluntary muscles, the main pathological finding in LGMD2B patients. However, the immune system has been suggested to contribute to muscle cell death and tissue regeneration. Serum levels of 27 cytokines were evaluated in a dysferlinopathy patient...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28486793/inflammatory-bowel-disease-updates-on-molecular-targets-for-biologics
#17
REVIEW
Konstantinos H Katsanos, Konstantinos A Papadakis
Therapy for inflammatory bowel disease (IBD) has changed, with several new agents being evaluated. The era of anti-tumor necrosis factor (anti-TNF) antibody therapy saw remarkable progress in IBD therapy. Some patients, however, do not respond to anti-TNF treatment, or their response decreases over time. This phenomenon highlights the need to identify new molecular targets for therapy in IBD. The targets of new therapeutic molecules in IBD must aim to restore immune dysregulation by the inhibition of proinflammatory cytokines (TNF-α, interleukin [IL]-6, IL-13, IL-17, IL-18, and IL-21) and augmentation of the effect of anti-inflammatory cytokines (IL-10, IL-11, and transforming growth factor β) and to pursue new anti-inflammatory targets, such as regulatory T-cell therapy, Smad7 antisense, Janus-activated kinase inhibition, Toll-like receptor stimulation, leukocyte adhesion, and blockade of T-cell homing via integrins and mucosal addressin cellular adhesion molecule-1...
May 11, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28483607/interleukin-17a-promotes-lung-tumor-progression-through-neutrophil-attraction-to-tumor-sites-and-mediating-resistance-to-pd-1-blockade
#18
Esra A Akbay, Shohei Koyama, Yan Liu, Ruben Dries, Lauren E Bufe, Michael Silkes, Md Maksudul Alam, Dillon M Magee, Robert Jones, Masahisa Jinushi, Meghana Kulkarni, Julian Carretero, Xiaoen Wang, Tiquella Warner-Hatten, Jillian D Cavanaugh, Akio Osa, Atsushi Kumanogoh, Gordon J Freeman, Mark M Awad, David C Christiani, Raphael Bueno, Peter S Hammerman, Glenn Dranoff, Kwok-Kin Wong
HYPOTHESIS: Proinflammatory cytokine Interleukin (IL)-17A (IL-17A) is overexpressed in a subset of patients with lung cancer. We hypothesized that IL-17A promotes a pro-tumorigenic inflammatory phenotype, and inhibits anti-tumor immune responses. EXPERIMENTAL DESIGN: We generated bi-transgenic mice expressing a conditional IL-17A allele along with conditional Kras(G12D) and performed immune phenotyping of mouse lungs, survival analysis, and treatment studies with antibodies either blocking PD-1 or IL6, or depleting neutrophils...
May 5, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28482409/-protective-effect-of-glycogen-synthase-kinase-3%C3%AE-inhibition-via-peroxisome-proliferator-activated-receptor-alpha-activation-in-mice-with-acute-liver-failure
#19
H B Shi, H L Shi, X Y Zhang, D X Chen, Z P Duan, F Ren
Objective: To investigate the role of the glycogen synthase kinase 3β (GSK3β) and the peroxisome proliferator-activated receptor alpha (PPARα) signaling pathway in acute liver failure and related mechanisms in a mouse model of acute liver failure induced by D-galactosamine/lipopolysaccharide (D-GalN/LPS). Methods: C57BL/6 mice were given intraperitoneal injection of D-GalN/LPS to establish a mouse model of acute liver failure. SB216763 was used to inhibit the activity of GSK3β and PPARα siRNA was used to inhibit the expression of PPARα...
March 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28479226/bifidobacterium-adolescentis-im38-ameliorates-high-fat-diet-induced-colitis-in-mice-by-inhibiting-nf-%C3%AE%C2%BAb-activation-and-lipopolysaccharide-production-by-gut-microbiota
#20
Su-Min Lim, Dong-Hyun Kim
Gut microbiota play essential roles in the regulation of human metabolism via symbiotic interactions with the host. Prolonged consumption of high-fat diet (HFD) elevates the Firmicutes to Bacteroidetes ratio and lipopolysaccharide (LPS) production by gut microbiota, thereby increasing the probability of developing metabolic and immune disorders such as obesity and colitis. The use of probiotics with anti-inflammatory properties has been suggested to counteract this effect. Here, we tested whether Bifidobacterium adolescentis IM38, which inhibited nuclear factor-kappa B (NF-κB) activation in Caco-2 cells and peritoneal macrophages and inhibited Escherichia coli LPS production, exerted an anticolitic effect in mice with HFD-induced obesity...
April 19, 2017: Nutrition Research
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