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https://www.readbyqxmd.com/read/28822915/immunomodulatory-effects-of-m2000-%C3%AE-d-mannuronic-acid-on-tnf-%C3%AE-il-17-and-foxp3-gene-expression-in-patients-with-inflammatory-bowel-disease
#1
Hussaini Alhassan Mohammed, Ali Akbar Saboor-Yaraghi, Homayoun Vahedi, Mir Saeed Yekaninejad, Ghodratollah Panahi, Gholamreza Hemmasi, Mostafa Lakzaei, Abbas Mirshafiey
INTRODUCTION: Inflammatory bowel diseases (IBD) are immune-mediated disorders that result from an aberrant immunological response to the gut luminal antigen in genetically susceptible patients. IBD is categorized into two serotype, Crohn's diseases (CD) and ulcerative colitis (UC), both subtype are important cause of gastrointestinal diseases. The increasing rate of hospitalization, with the high economic burden experienced by the IBD patients, calls for more concerted research efforts to design a potent and affordable treatment option for the treatment of IBD...
August 17, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28822449/-cytokine-profiles-of-cd4-t-memory-cells-in-asthma-and-their-relationship-with-asthma-severity
#2
C L Du, K Xu, Z H Min, D D Li, H L Yuan, C Liu, Z H Chen
Objective: To study the phenotype of memory CD4(+) T cells in peripheral blood of asthmatics and its relationship with asthma severity. Methods: From Dec 2014 to Aug 2015, thirty-three asthmatics, twenty-six chronic obstructive pulmonary disease (COPD) patients and twenty-two healthy volunteers were enrolled in Respiratory Clinics of Zhongshan Hospital, Fudan University. Peripheral blood mononuclear cells (PBMCs) were isolated from peripheral blood. Cell surface markers (CD45RO, CRTH2, CD62L, and CCR7) and intracellular protein[interleukin (IL)-5, IL-17, interferon (IFN)-γ]staining was performed using flow-cytometric techniques...
August 8, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28821806/longitudinal-study-of-changes-in-%C3%AE-%C3%AE-t-cells-and-cd4-t-cells-upon-asymptomatic-malaria-infection-in-indonesian-children
#3
Sanne E de Jong, Vera E R Asscher, Linda J Wammes, Aprilianto E Wiria, Firdaus Hamid, Erliyani Sartono, Taniawati Supali, Hermelijn H Smits, Adrian J F Luty, Maria Yazdanbakhsh
Both γδ T cells and CD4(+) T cells have been implicated in immunity to malaria, but their association with natural gain or loss of infection has not been studied before. Therefore, we followed up asymptomatic children living in an area endemic for malaria in Indonesia for 21 months. The percentage of γδ T cells was related to both current and previous infection, with higher percentages in infected than uninfected children and declining after infections resolve. Infected children also had higher levels of Th1 and Th17 cells, lower levels of CD25(Hi) FOXP3(+) regulatory T cells (Tregs), but similar levels of Th2 cells as compared to uninfected children...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821374/il-17-production-of-neutrophils-enhances-antibacteria-ability-but-promotes-arthritis-development-during-mycobacterium-tuberculosis-infection
#4
Shengfeng Hu, Wenting He, Xialin Du, Jiahui Yang, Qian Wen, Xiao-Ping Zhong, Li Ma
To our knowledge, no studies have examined the role of IL-17 production by neutrophils in immune defense against Mycobacterium tuberculosis (MTB) infection and the pathogenesis of rheumatoid arthritis (RA) caused by MTB infection. Here, we determined that neutrophils express IL-17 in an autocrine IL-6- and IL-23-dependent manner during MTB infection. MTB H37Rv-induced IL-6 production was dependent on the NF-κB, p38, and JNK signaling pathways; however, IL-23 production was dependent on NF-κB and EKR in neutrophils...
August 9, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28819723/guselkumab-first-global-approval
#5
Anthony Markham
Guselkumab (Tremfya™) is a human monoclonal IgG1λ antibody being developed by Janssen Biotech, Inc. that has been approved in the USA as a treatment for moderate-to-severe plaque psoriasis. Guselkumab inhibits the binding of interleukin 23 (IL-23) to its cell surface receptor, disrupting the type 17 helper T cell/IL-17 pathway. This article summarizes the milestones in the development of guselkumab leading to this first approval for the treatment of adults with moderate-to-severe plaque psoriasis who are candidates for systemic therapy or phototherapy...
August 17, 2017: Drugs
https://www.readbyqxmd.com/read/28818706/diabetes-increases-interleukin-17-levels-in-periapical-hepatic-and-renal-tissues-in-rats
#6
Mariane Maffei Azuma, João Eduardo Gomes-Filho, Annelise Katrine Carrara Prieto, Renata Oliveira Samuel, Valéria Marçal Felix de Lima, Dóris Hissako Sumida, Edilson Ervolino, Luciano Tavares Angelo Cintra
OBJECTIVES: This study aimed to evaluate the association between endodontic infection and diabetes on interleukin-17 levels in periapical, hepatic, and renal tissues of rats. DESIGN: Forty male rats were divided into groups: normoglycemic rats (N), normoglycemic rats with apical periodontitis (N-AP), rats with experimental diabetes (ED), and rats with experimental diabetes and apical periodontitis (ED-AP). Diabetes was induced by intravenous streptozotocin injection, and blood sugar levels were monitored to confirm disease development...
August 2, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28818640/the-influence-of-physical-activity-in-the-anti-tumor-immune-response-in-experimental-breast-tumor
#7
Thiago M Bianco, Douglas R Abdalla, Chamberttan S Desidério, Sofie Thys, Cindy Simoens, John-Paul Bogers, Eddie F C Murta, Márcia A Michelin
This study aimed to investigate the influence of physical activity in innate immunity to conduce to an effective antitumoral immune response analyzing the phenotype and activation status of infiltrating cells. We analyzed the intracellular cytokines and the transcription factors of tumor infiltrating lymphocytes (TILS) and spleen leukocytes. The Nos2 gene expression was evaluated in spleen cells and futhermore the ROS production was measured and spleen cells; another cell evaluated was dendritic cells (TIDCs), their cytokines expression and membrane molecules; finally to understood the results obtained, we analysed the dendritic cells obtained from bone marrow...
August 14, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28818567/a-protein-chimera-including-pspa-in-fusion-with-potd-is-protective-against-invasive-pneumococcal-infection-and-reduces-nasopharyngeal-colonization-in-mice
#8
T R Converso, C Goulart, M Darrieux, L C C Leite
Despite the success of the available polysaccharide-based vaccines against Streptococcus pneumoniae in preventing invasive diseases, this bacterium remains a major cause of death in many parts of the world. New vaccine strategies are needed in order to increase protection. Thus, the utilization of fusion proteins is being investigated as an alternative to the current formulations. In the present work, we demonstrate that a chimeric protein, composed of PspA and PotD in fusion is able to maintain the protective characteristics of both parental proteins, providing protection against systemic infection while reducing nasal colonization...
August 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28818516/autoimmune-potential-of-perchloroethylene-role-of-lipid-derived-aldehydes
#9
Gangduo Wang, Jianling Wang, G A Shakeel Ansari, M Firoze Khan
Tetrachloroethene (perchloroethylene, PCE), an ubiquitous environmental contaminant, has been implicated in inducing autoimmunity/autoimmune diseases (ADs), including systemic lupus erythematosus (SLE) and scleroderma in humans. However, experimental evidence suggesting the potential of PCE in mediating autoimmunity is lacking. This study was, therefore, undertaken to explore PCE's potential in inducing/exacerbating an autoimmune response. Six-week old female MRL+/+ mice, in groups of 6 each, were treated with PCE (0...
August 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28816577/coenzyme-q10-inhibits-th17-and-stat3-signaling-pathways-to-ameliorate-colitis-in-mice
#10
Seon-Yeong Lee, Seung Hoon Lee, Eun-Ji Yang, Jae-Kyung Kim, Eun-Kyung Kim, KyungAh Jung, Hongsoon Jung, Kyungjin Lee, Han Hee Lee, Bo-In Lee, Sung-Hwan Park, Dong Yun Shin, Mi-La Cho
Coenzyme Q10 (CoQ10) is a powerful antioxidant substance synthesized in the body. The current study aimed to determine whether CoQ10 suppresses inflammation and inhibits p-STAT3 expression in an experimental colitis mouse model. The mice were orally fed with CoQ10 once a day for 13 days. Histological analysis of the colons was performed by immunohistochemistry. Expression of IL-17, FOXP3, p53, AMPK, and mTOR and activation of p-STAT3 and p-STAT5 in lymph node and spleen tissues were detected by confocal microscopy of stained tissue sections...
August 17, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28815719/cytokine-profiling-of-mcf-7-cell-line-2d-progressive-3d-and-3d-revert-cultures
#11
Aishwarya Subramaniyan, Maddaly Ravi
Cancer cytokines are known to mediate several complex cancer cell physiologies. Also, cancer cells themselves are known to secrete cytokines whose expressions and net inducible results are controlled by a variety of factors. We profiled a few cytokines secreted by 2D, 3D aggregates and the 3DRs of MCF-7 cell line at various time points. Several cytokines were seen more expressed by 3D cultures on the 4(th) day and IL-10 peaked on the day 1 of 3D cultures while TNF-α level peaked on the 7(th) day. α-Defensin, SDF-7 and TGF-β also showed markedly higher levels...
August 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28815179/interleukin-17-can-induce-osteoarthritis-in-rabbit-knee-joints-similar-to-hulth-s-method
#12
Zili Wang, Chenhuang Zheng, Yunbin Zhong, Jinshen He, Xu Cao, Hansong Xia, Hongliang Ba, Pei Li, Song Wu, Cheng Peng
Interleukin-17 (IL-17) is closely related to osteoarthritis (OA), but animal studies that employ IL-17 to induce OA are currently lacking. Therefore, this study evaluated the effect of IL-17 in the rabbit knee joint. The right knees served as the control group. The left knees were divided randomly into 4 groups: a Hulth group and 3 IL-17 groups (1-ng, 10-ng, and 50-ng groups). OA was induced in the Hulth group using Hulth's method. The IL-17 groups were injected with 1, 10, or 50 ng of IL-17 as indicated. Specimens were collected at 72 h, 1 week, 3 weeks, 6 weeks, and 12 weeks after surgery or the last injection...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28814613/osteoimmunology-the-conceptual-framework-unifying-the-immune-and-skeletal-systems
#13
REVIEW
Kazuo Okamoto, Tomoki Nakashima, Masahiro Shinohara, Takako Negishi-Koga, Noriko Komatsu, Asuka Terashima, Shinichiro Sawa, Takeshi Nitta, Hiroshi Takayanagi
The immune and skeletal systems share a variety of molecules, including cytokines, chemokines, hormones, receptors, and transcription factors. Bone cells interact with immune cells under physiological and pathological conditions. Osteoimmunology was created as a new interdisciplinary field in large part to highlight the shared molecules and reciprocal interactions between the two systems in both heath and disease. Receptor activator of NF-κB ligand (RANKL) plays an essential role not only in the development of immune organs and bones, but also in autoimmune diseases affecting bone, thus effectively comprising the molecule that links the two systems...
October 1, 2017: Physiological Reviews
https://www.readbyqxmd.com/read/28813677/the-il-17f-il-17rc-axis-promotes-respiratory-allergy-in-the-proximal-airways
#14
Antonella De Luca, Marilena Pariano, Barbara Cellini, Claudio Costantini, Valeria Rachela Villella, Shyam Sushama Jose, Melissa Palmieri, Monica Borghi, Claudia Galosi, Giuseppe Paolicelli, Luigi Maiuri, Jan Fric, Teresa Zelante
The interleukin 17 (IL-17) cytokine and receptor family is central to antimicrobial resistance and inflammation in the lung. Mice lacking IL-17A, IL-17F, or the IL-17RA subunit were compared with wild-type mice for susceptibility to airway inflammation in models of infection and allergy. Signaling through IL-17RA was required for efficient microbial clearance and prevention of allergy; in the absence of IL-17RA, signaling through IL-17RC on epithelial cells, predominantly by IL-17F, significantly exacerbated lower airway Aspergillus or Pseudomonas infection and allergic airway inflammation...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28812969/functional-expression-of-bmp7-receptors-in-oral-epithelial-cells-interleukin-17f-production-in-response-to-bmp7
#15
Kensuke Nishio, Yasumasa Ozawa, Hisanori Ito, Takashi Kifune, Tatsuya Narita, Toshimitsu Iinuma, Nobuhito Gionhaku, Masatake Asano
BACKGROUND: Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-β (TGF-β) superfamily. Recently, BMP7 has been demonstrated to be produced by salivary glands and contribute to embryonic branching in mice. The BMP7 in saliva is thought to be delivered to the oral cavity and is expected to contact with stratified squamous epithelial cells which line the surface of oral mucosa. In this study, we attempted to investigate the effects of BMP7 on oral epithelial cells...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812183/anti-dll4-antibody-inhibits-the-differentiation-of-th17-cells-in-asthmatic-mice
#16
Cuiye Weng, Lei Chong, Xiaoxiao Jia, Rongying Zheng, Yue Huang, Tingting Zhu, Changchong Li, Weixi Zhang
T helper 17 (Th17) cells play an important role in allergic asthma, and the Notch ligand Delta-like ligand (Dll)4 has been reported to direct the differentiation of Th17 cells. In this study, experimental animals were divided into five groups (control group, asthma group, physiological saline group, anti-Dll4 antibody group, and immunoglobulin G group). The study aimed to explore the effect of anti-Dll4 antibody on the differentiation of Th17 cell in asthmatic mice. Dll4 protein expressions were performed by immunohistochemical imaging...
August 15, 2017: Inflammation
https://www.readbyqxmd.com/read/28811236/interleukin-26-is-overexpressed-in-beh%C3%A3-et-s-disease-and-enhances-th17-related-cytokines
#17
Wajih Kaabachi, Eya Bouali, Anissa Berraïes, Imen Ben Dhifallh, Besma Hamdi, Kamel Hamzaoui, Agnès Hamzaoui
Behçet's disease (BD) is a multi-systemic inflammatory disorder characterized by the "triple symptom complex". Several pro-inflammatory cytokines, mainly derived from the immune Th17 axis, seem to be involved in different pathogenic pathways leading to development of the clinical manifestations. Here, we have analyzed the expression and role of IL-26 in active BD patients, an inflammatory disorder characterized by bronchoalveolar lavage fluid (BAL) and in cerebrospinal fluid (CSF) inflammation. On this basis, the primary aim of our work was to study IL-26 levels in serum, BAL CSF) from active BD patients...
August 12, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28811226/characterization-and-expression-analysis-of-six-interleukin-17-receptor-genes-in-grouper-epinephelus-coioides-after-cryptocaryon-irritans-infection
#18
Biao Jiang, Yan-Wei Li, Ya-Zhou Hu, Heng-Li Luo, An-Xing Li
Interleukin-17 receptors (IL17Rs) mediate the activation of several downstream signal pathways to induce inflammatory response and contribute to the pathology of many autoimmune diseases. In this study, six IL17Rs (IL17RA1, RA2, RB, RC, RD and RE) were cloned and characterized from Epinephelus coioides, an orange-spotted grouper. Multiple sequence alignment and structural analysis revealed that all members of IL17Rs were low in sequence identity with each other. But their structures were conservative in grouper, which contain signal peptide, extracellular FNIII domain (IL17RA1/RA2/RB) or IL-17_R_N domain (IL17RC/RD/RE), transmembrane domain and SEFIR domain in their intracellular region...
August 12, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28811215/molecular-mechanisms-underlying-protection-against-h9n2-influenza-virus-challenge-in-mice-by-recombinant-lactobacillus-plantarum-with-surface-displayed-ha2-ltb
#19
Yanlong Jiang, Guilian Yang, Qi Wang, Zhannan Wang, Wentao Yang, Wei Gu, Chunwei Shi, Jianzhong Wang, Haibin Huang, Chunfeng Wang
It has been considered that the Avian influenza virus (AIV) causes severe threats to poultry industry. In this study, we constructed a series of recombinant Lactobacillus plantarum (L. plantarum) with surface displayed hemagglutinin subunit 2 (HA2) alone or together with heat-labile toxin B subunit (LTB) from enterotoxigenic Escherichia coli. Balb/c mice were used as model to evaluate the protective effects of recombinant L. plantarum strains against H9N2 subtype challenge. The results showed that the presence of LTB significantly increased the percentages of CD3(+)CD4(+)IL-4(+), CD3(+)CD4(+)IFN-γ(+) and CD3(+)CD4(+)IL-17(+) T cells, as well as CD3(+)CD8(+)IFN-γ(+) T cells in spleen and MLNs determined by Fluorescence-Activated Cell Sorting assay...
August 12, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28810565/alteration-of-th17-and-foxp3-regulatory-t-cells-in-patients-with-unexplained-recurrent-spontaneous-abortion-before-and-after-the-therapy-of-hcg-combined-with-immunoglobulin
#20
Jing Sha, Fumin Liu, Jingfang Zhai, Xiaoyun Liu, Qinglin Zhang, Bei Zhang
We conducted this study to investigate the effects of the combination therapy of human chorionic gonadotropin (hCG) plus immunoglobulin (IG) on the levels of T helper 17 (Th17) cells and Foxp3(+) regulatory T cells (Treg) in patients with unexplained recurrent spontaneous abortion (URSA). Twenty pregnant women with URSA underwent combination therapy of hCG plus IG. Flow cytometry was performed to measure the proportions of Th17 and Treg cells before and after treatment. RT-PCR and ELISA were applied to detect the concentrations of interleukin (IL)-17, IL-6, IL-10, and transforming growth factor (TGF)-β1 in the peripheral blood...
August 2017: Experimental and Therapeutic Medicine
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