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Interleukin 17

Yu Sawada, Motonobu Nakamura
Skin is an important organ that is located on the outermost layer of the human body, and serves as a defense barrier against external stimulation. Daily life style, including diet, exercise, and sleep, is a fundamental behavior of humans, and it has recently been reported that daily life style has a strong relationship with the inflammatory condition of skin diseases. This relationship has been examined by various approaches, including epidemiological investigations. Psoriasis is one inflammatory skin disease and is especially closely related with daily life style, such as diet, sleep, smoking and alcohol consumption...
2018: Journal of UOEH
Ali Duyu, Elvan Çağlar Çıtak, Erdem Ak, Serhan Kupeli, Begül Yağcı Küpeli, İbrahim Bayram, Gülay Sezgin, Gülçin Eskendari, Kerem Sezer
OBJECTIVE: In this study, we evaluated the frequency of euthyroid sick syndrome (ESS) among patients with childhood cancer and its association with the stage of disease, nutritional parameters and cytokines levels. METHODS: Eighty newly diagnosed children were included into study. ESS was diagnosed in two different ways:Criteria 1; fT3 was below the lower limit, fT4 was within the normal or low limits, TSH was in normal range and in criteria 2 all the levels were same as criteria 1 but moreover rT3 was performed and was higher than normal limits...
March 19, 2018: Journal of Clinical Research in Pediatric Endocrinology
Zhi-Wei Lai, Ryan Kelly, Thomas Winans, Ivan Marchena, Ashwini Shadakshari, Julie Yu, Maha Dawood, Ricardo Garcia, Hajra Tily, Lisa Francis, Stephen V Faraone, Paul E Phillips, Andras Perl
BACKGROUND: Patients with systemic lupus erythematosus have T-cell dysfunction that has been attributed to the activation of the mammalian target of rapamycin (mTOR). Rapamycin inhibits antigen-induced T-cell proliferation and has been developed as a medication under the generic designation of sirolimus. We assessed safety, tolerance, and efficacy of sirolimus in a prospective, biomarker-driven, open-label clinical trial. METHODS: We did a single-arm, open-label, phase 1/2 trial of sirolimus in patients with active systemic lupus erythematosus disease unresponsive to, or intolerant of, conventional medications at the State University of New York Upstate Medical University (Syracuse, NY, USA)...
March 15, 2018: Lancet
Yai-Ping Hsiao, Chien-Chang Shen, Chung-Hsiung Huang, Yu-Chin Lin, Tong-Rong Jan
Iron oxide nanoparticles (IONPs) have been shown to attenuate T helper (Th)1 and Th2 cell-mediated immunity in ovalbumin (OVA)-sensitized mice. The objective of this study is to investigate the effects of IONPs on the immune responses of Th17 cells, a subset of T cells involved in various inflammatory pathologies. For in vivo study, a murine model of delayed-type hypersensitivity (DTH) was employed. BALB/c mice received a single dose of IONPs (0.2-10 mg iron/kg) via the tail vein 1 h prior to ovalbumin (OVA) sensitization...
March 14, 2018: International Immunopharmacology
Jose-Manuel Carrascosa, Ira Jacobs, Danielle Petersel, Robert Strohal
Psoriasis is a chronic, inflammatory, lifelong disease with a high prevalence (afflicting approximately 1-5% of the population worldwide) and is associated with significant morbidity. The introduction of biologic therapies has improved the management of this disease. Multiple biologic medicines that block cytokine signaling, including tumor necrosis factor (TNF) antagonists (adalimumab, etanercept, and infliximab) and inhibitors of interleukin (IL)-17 (brodalumab, ixekizumab, and secukinumab), IL-23 (guselkumab), or IL-12/23 (ustekinumab), are approved for the treatment of psoriasis...
March 16, 2018: Dermatology and Therapy
Maryam Sohrabi, Mahdi Alahgholi-Hajibehzad, Zahra Gholami Mahmoodian, Sayed Ali Hosseini Siyar, Alireza Zamani
BACKGROUND: Studies have indicated that extraweight and obesity induce chronic inflammation, which can lead to other diseases such as cancers. OBJECTIVE: To evaluate the effects of two weight-lowering and anti-inflammatory agents including cinnamon, and turmeric, on serum levels of interleukin-17 (IL-17) as a pro-inflammatory cytokine. METHODS: In this study, 64 rats were designated in eight groups. The control group received normal diet. The other groups were fed with normal diet plus high cinnamon (3 mg/ml), high turmeric (3 mg/ml), high-fructose solution (30%), fructose solution with low (0...
March 2018: Iranian Journal of Immunology: IJI
Lei Liu, Masashi Fujimoto, Fumi Nakano, Hirofumi Nishikawa, Takeshi Okada, Fumihiro Kawakita, Kyoko Imanaka-Yoshida, Toshimichi Yoshida, Hidenori Suzuki
Tenascin-C (TNC), a matricellular protein, is upregulated in brain parenchyma after experimental subarachnoid hemorrhage (SAH). Recent studies emphasize that early brain injury (EBI) should be overcome to improve post-SAH outcomes. The aim of this study was to investigate effects of TNC knockout (TNKO) on neuronal apoptosis and neuroinflammation, both of which are important constituents of EBI after SAH. C57BL/6 wild-type (WT) mice or TNKO mice underwent sham or filament perforation SAH modeling. Twenty-five WT mice and 25 TNKO mice were randomly divided into sham+WT (n = 10), sham+TNKO (n = 8), SAH+WT (n = 15), and SAH+TNKO (n = 17) groups...
March 15, 2018: Molecular Neurobiology
Lyle W Murray, Iman Satti, Jodi Meyerowitz, Matthew Jones, Christian B Willberg, James E Ussher, Dominique Goedhals, Jacob Hurst, Rodney E Phillips, Helen McShane, Cloete van Vuuren, John Frater
Background: Human immunodeficiency virus (HIV)-infected individuals have a higher risk of developing active tuberculosis (TB) than HIV-uninfected individuals, but the mechanisms underpinning this are unclear. We hypothesized that depletion of specific components of Mycobacterium tuberculosis (Mtb)-specific CD4+ and CD8+ T-cell responses contributed to this increased risk. Methods: Mtb-specific T-cell responses in 147 HIV-infected and 44 HIV-uninfected control subjects in a TB-endemic setting in Bloemfontein, South Africa, were evaluated...
March 13, 2018: Journal of Infectious Diseases
Peng You, Ning Chen, Lin Su, Tao Peng, Guodong Chen, Yulan Liu
Transforming growth factor β1 (TGF-β1) has a crucial role in regulating the balance of type 17 T-helper cells (Th17) and T regulatory cells (Tregs) that are involved in the pathogenesis of inflammatory bowel disease, while the function of local TGF-β1 in this process has remained to be fully elucidated. The present study investigated the effects of different local TGF-β1 levels on the Treg/Th17 balance and on the dexamethasone efficacy in mice with 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis...
April 2018: Experimental and Therapeutic Medicine
Ji Yang, Xue Yang, Jie Yang, Ming Li
OBJECTIVE: Hydroxychloroquine (HCQ) is a commonly used medicine for the treatment of systemic lupus erythematosus (SLE), and Th17 cells are closely related to the pathogenesis of SLE. However, the role and mechanism of HCQ on Th17 cell differentiation in SLE is not clearly understood. Here, we investigate the effect of HCQ on Th17 cell differentiation both in vitro and in patients with SLE. METHODS: Twenty-five patients with SLE were divided into 2 treatment groups: prednisone alone and HCQ plus prednisone...
March 15, 2018: Journal of Rheumatology
Marie Madsen, Peter Riis Hansen, Lars Bo Nielsen, Renata Martins Cardoso, Miranda van Eck, Tanja Xenia Pedersen
Psoriasis is a chronic inflammatory skin disorder associated with several comorbidities including atherosclerosis. Disease mechanisms that may affect both psoriasis and atherosclerosis include activation of T helper 1 and T helper 17 cells. Imiquimod application is an established mouse model of psoriasis-like skin inflammation. The cardiac glycoside digoxin inhibits the master transcription factor of T helper 17 differentiation, retinoid acid receptor-related orphan nuclear receptor γt, and attenuates interleukin-17-dependent pathologies in mice...
March 12, 2018: American Journal of Pathology
Jeong-Eun Kwon, Seon-Yeong Lee, Hyeon-Beom Seo, Young-Mee Moon, Jun-Geol Ryu, Kyung-Ah Jung, Joo-Yeon Jhun, Jin-Sil Park, Soo-Seok Hwang, Joo-Myeong Kim, Gap Ryol Lee, Sung-Hwan Park, Mi-La Cho
Yin Yang 1 (YY1) is a ubiquitously expressed transcription factor that functions in cooperation with various cofactors to regulate gene expression. In the immune system, YY1 enhances cytokine production and T helper (Th) 2 effector cell differentiation, resulting in the activation of inflammation. However, no studies have reported the role of YY1 in Th17 cell regulation, which is implicated in rheumatoid arthritis (RA). We investigated the expression of YY1 in Th17 cells in vitro and revealed increased levels of YY1 mRNA and protein...
March 12, 2018: Immunology Letters
Ji Young Kim, Kyu Lim, Kyung Hee Kim, Jin Hyun Kim, Jin Sun Choi, Seung-Cheol Shim
N-3 polyunsaturated fatty acids (PUFA) have anti-inflammatory effects and were considered useful for the treatment of rheumatoid arthritis (RA). Recently, several studies suggested that n-3 PUFAs attenuated arthritis in animal model and human, however the mechanism is still unclear. Interleukin 17 (IL-17) is a pro-inflammatory cytokine mainly produced by T helper 17 (Th17) cells which cause tissue inflammation and bone erosion leading to joint destruction. In contrast, regulatory T (Treg) cells down-regulate various immune responses by suppression of naïve T cells...
2018: PloS One
Keiichi Koizumi, Minako Hoshiai, Nobuyuki Katsumata, Takako Toda, Hiroaki Kise, Yohei Hasebe, Yosuke Kono, Yuto Sunaga, Masashi Yoshizawa, Atsushi Watanabe, Keiko Kagami, Masako Abe, Kanji Sugita
BACKGROUND: The effect of infliximab (IFX) on immune cells has not been fully reported in Kawasaki disease (KD). To investigate the mechanism of IFX in KD, we examined changes in the abundance of CD14+ CD16+ activated monocytes, regulatory T cells (Treg ), and T-helper cell type 17 (Th17) cells following treatment with IFX. METHODS: We collected peripheral blood from patients with intravenous immunoglobulin (IVIG)-resistant KD and analyzed the absolute counts of CD14+ CD16+ monocytes, Treg cells (CD4+ CD25+ FOXP3+ ) and Th17 cells (CD4+ IL-17A+ ) by flow cytometry...
March 15, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
Alexia Eyraud, Brigitte Milpied, Denis Thiolat, Anne-Sophie Darrigade, Katia Boniface, Alain Taïeb, Julien Seneschal
Folliculitis decalvans (FD) is a chronic inflammatory disease leading to scarring alopecia with poorly defined pathogenesis. The aim of this study was to investigate the expression of markers associated with the activation of innate immune signals, such as inflammasome (NALP1 and NALP3), interleukin (IL)-1β and IL-8 and type I interferon (MxA). A retrospective monocentric study was conducted and included 17 patients with FD with available biopsies. Disease activity (stable vs. active) was defined clinically and histologically...
March 15, 2018: Acta Dermato-venereologica
Reşat Duman, Ayhan Vurmaz
PURPOSE: The exact etiopathogenesis of steroid-induced cataracts (SIC) is not known. Although oxidative stress is one of the most acceptable hypotheses, the exact molecular events in steroid-induced oxidative events in the lens need to be clarified. In addition, to the best of our knowledge, the innate immune system components in SIC formation have not been studied previously. The aim of the present study was to study the oxidative system and the innate immune system components in the cataractous lenses of a developing chick embryo SIC model...
March 15, 2018: Cutaneous and Ocular Toxicology
Adriano Luís Soares De Souza, Stefan Rudin, Rui Chang, Keith Mitchell, Timothy Crandall, Shuning Huang, Ji-Kyung Choi, Shinji L Okitsu, Danielle L Graham, Blake Tomkinson, Tammy Dellovade
INTRODUCTION: Antigen-specific immunotherapy could provide a targeted approach for the treatment of multiple sclerosis that removes the need for broad-acting immunomodulatory drugs. ATX-MS-1467 is a mixture of four peptides identified as the main immune-dominant disease-associated T-cell epitopes in myelin basic protein (MBP), an autoimmune target for activated autoreactive T cells in multiple sclerosis. Previous animal studies have shown that ATX-MS-1467 treatment prevented the worsening of signs of disease in experimental autoimmune encephalitis (EAE) in the humanized (DR2 × Ob1)F1 mouse in a dose-dependent fashion...
March 14, 2018: Neurology and Therapy
Chia-Yen Dai, Yi-Shan Tsai, Wen-Wen Chou, Tawei Liu, Chung-Feng Huang, Shu-Chi Wang, Pei-Chien Tsai, Ming-Lun Yeh, Ming-Yen Hsieh, Ching-I Huang, Shang-Yin Vanson Liu, Jee-Fu Huang, Wan-Long Chuang, Ming-Lung Yu
Background/Aims: MicroRNA-125b (miR-125b) has been found to regulate inflammation and acts as an oncogene in many cancers. The mechanisms of miR-125b expression during hepatitis C virus (HCV) infection remain to be clarified. The present study aims to identify the factors that might regulate miR-125b expression in HCV infection. Results: High expression of miR-125b was found to correlate with HCV infection in replicon cells and in sera from HCV-infected patients, whereas the miR-125b inhibitor reduced HCV gene expression...
February 16, 2018: Oncotarget
Zhaoheng Liu, Wei Wang, Fang Cao, Shuo Liu, Xinxin Zou, Guodong Li, Haojie Yang, Yang Jiao
Air pollution is the main cause of respiratory diseases. Fine particulates with the diameter below 2.5  μ m can get into the alveoli and then enter the blood circulation through the lung tissue ventilation function and cause multiple systemic diseases especially the respiratory diseases. This study investigated the pathological mechanism of the lungs injury in rats induced by PM2.5 and the effect and mechanism of the Chinese herbal medicine number 2 Feibi Recipe (number 2 FBR) on lungs injury. In this experiment, Wistar rats were used...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
Marta Stolarczyk, Bob J Scholte
Chronic obstructive pulmonary disease (COPD) and cystic fibrosis (CF) share molecular mechanisms that cause the pathological symptoms they have in common. Here, we review evidence suggesting that hyperactivity of the EGFR/ADAM17 axis plays a role in the development of chronic lung disease in both CF and COPD. The ubiquitous transmembrane protease A disintegrin and metalloprotease 17 (ADAM17) forms a functional unit with the EGF receptor (EGFR), in a feedback loop interaction labeled the ADAM17/EGFR axis. In airway epithelial cells, ADAM17 sheds multiple soluble signaling proteins by proteolysis, including EGFR ligands such as amphiregulin (AREG), and proinflammatory mediators such as the interleukin 6 coreceptor (IL-6R)...
2018: Mediators of Inflammation
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