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https://www.readbyqxmd.com/read/27886396/5-ala-mediated-photodynamic-therapy-reduces-the-parasite-load-in-mice-infected-with-leishmania-braziliensis
#1
Danila Malheiros Souza, Polyanna Miranda Alves, Mona Lisa Fabiana Silva, Tony Paiva Paulino, Henrique Ovidio Coraspe, Mônica Miguel Sawan Mendonça, Betânia Maria Ribeiro, Marcos Vinicius da Silva, Virmondes Rodrigues Júnior, Denise Bertulucci Rocha Rodrigues
INTRODUCTION: Photodynamic therapy (PDT) has proven to be an effective alternative for the treatment of cutaneous leishmaniasis. Skin lesions consist of ulcers with well-defined raised edges, and granular floor. Th1 immune response is the protective profile in patients infected with Leishmania. In the present study, the photodynamic therapy with 5-aminolevulinic acid, the parasitic load, and the modulation of the immune response were evaluated in mice infected with Leishmania braziliensis...
November 25, 2016: Parasite Immunology
https://www.readbyqxmd.com/read/27881708/il-35-suppresses-lipopolysaccharide-induced-airway-eosinophilia-in-ebi3-deficient-mice
#2
Kyosuke Kanai, Ah-Mee Park, Hiroki Yoshida, Ikuo Tsunoda, Osamu Yoshie
EBI3 functions as the subunit of immune-regulatory cytokines, such as IL-27 and IL-35, by pairing with p28 and p35, respectively. We treated wild-type and EBI3-deficient mice with intratracheal administration of LPS and obtained bronchoalveolar lavage fluid (BALF) 24 h later. Although neutrophils were the predominant cells in BALF from both groups of mice, eosinophils were highly enriched and there was increased production of eosinophil-attracting chemokines CCL11 and CCL24 in BALF of EBI3-deficient mice. The bronchial epithelial cells and alveolar macrophages were the major producers of CCL11 and CCL24...
November 23, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27878721/evaluation-in-vitro-of-immunoregulatory-cytokines-secretion-by-dendritic-cells-in-mountain-skiers
#3
V S Evstratova, D B Nikityuk, N A Riger, N V Fedyanina, R A Khanferyan
In vitro production of immunoregulatory cytokines (IFN-α, IL-31, TNF-β, IL-17A, IL-7, IL-1RA, IL-1α, IL-10, IL-15, IL-21, IL-22, IL-23, IL-27, and IL-9) by dendritic cell cultures was compared in ski athletes and healthy donors. Effect of prolonged intense physical exercise on secretory activity of immune cells was investigated. In both groups, secretion of IL-1RA, IL-10, IL-1α by dendritic cells was revealed, but there were significant differences in IL-1RA, IL-1α content (p<0.05) with lower level in the group of athletes...
November 23, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27871325/impact-of-placental-plasmodium-falciparum-malaria-infection-on-the-cameroonian-maternal-and-neonate-s-plasma-levels-of-some-cytokines-known-to-regulate-t-cells-differentiation-and-function
#4
Jean Claude Djontu, Stalone Siewe Siewe, Yolande Delphine Mpeke Edene, Benderli Christine Nana, Edwige Vanessa Chomga Foko, Jude Daiga Bigoga, Rose F G Leke, Rosette Megnekou
BACKGROUND: The impact of placental malaria (PM) infection on the expression profile of some cytokines known to regulate T cell differentiation and function and their influence on birth weight remain unclear. Moreover, there are no reports showing the relationship between PM and IL-27 or IL-28A. This study therefore sought to investigate whether placental P. falciparum infection alters the expression profile of the cytokines IL-28A, IL-27, IL-17E and IL-6 in mothers and their new born...
November 21, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27869736/circulating-il-27-is-elevated-in-rheumatoid-arthritis-patients
#5
Xiaofei Lai, Hongxu Wang, Ju Cao, Ying Li, Yubing Dai, Yu Xiang, Liping Zhang
Cytokines are key immunoregulatory molecules that regulate T lymphocyte-mediated immune responses and inflammatory reactions. We determined whether there is aberrant expression of interleukin-27 (IL-27) in rheumatoid arthritis (RA) patients and investigated the clinical significance of these changes. IL-27 is a key cellular factor that regulates the differentiation of CD4+ T cells, which can secrete interleukin-10 (IL-10) and interleukin-17 (IL-17) in vivo. Concentrations of serum IL-27 in 67 RA patients, and 36 sex- and age-matched control subjects were measured by enzyme-linked immunosorbent assay (ELISA)...
November 18, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27867385/expanding-diversity-in-molecular-structures-and-functions-of-the-il-6-il-12-heterodimeric-cytokine-family
#6
REVIEW
Hideaki Hasegawa, Izuru Mizoguchi, Yukino Chiba, Mio Ohashi, Mingli Xu, Takayuki Yoshimoto
The interleukin (IL)-6/IL-12 family cytokines have pleiotropic functions and play critical roles in multiple immune responses. This cytokine family has very unique characteristics in that they comprise two distinct subunits forming a heterodimer and each cytokine and receptor subunit shares with each other. The members of this cytokine family are increasing; currently, there are more than six cytokines, including the tentatively named cytokines IL-Y (p28/p40), IL-12 (p35/p40), IL-23 (p19/p40), IL-27 [p28/Epstein-Barr virus-induced protein 3 (EBI3)], IL-35 (p35/EBI3), and IL-39 (p19/EBI3)...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27867384/interleukin-27-early-impacts-leishmania-infantum-infection-in-mice-and-correlates-with-active-visceral-disease-in-humans
#7
Begoña Pérez-Cabezas, Pedro Cecílio, Ana Luisa Robalo, Ricardo Silvestre, Eugenia Carrillo, Javier Moreno, Juan V San Martín, Rita Vasconcellos, Anabela Cordeiro-da-Silva
The complexity of Leishmania-host interactions, one of the main leishmaniasis issues, is yet to be fully understood. We detected elevated IL-27 plasma levels in European patients with active visceral disease caused by Leishmania infantum, which returned to basal levels after successful treatment, suggesting this cytokine as a probable infection mediator. We further addressed this hypothesis recurring to two classical susceptible visceral leishmaniasis mouse models. BALB/c, but not C57BL/6 mice, showed increased IL-27 systemic levels after infection, which was associated with an upregulation of IL-27p28 expression by dendritic cells and higher parasite burdens...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27834348/erratum-thymic-dcs-derived-il-27-regulates-the-final-maturation-of-cd4-sp-thymocytes
#8
Hui Tang, Jie Zhang, Xiuyuan Sun, Xiaoping Qian, Yu Zhang, Rong Jin
No abstract text is available yet for this article.
November 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27829708/interleukin-22-might-act-as-a-double-edged-sword-in-type-2-diabetes-and-coronary-artery-disease
#9
Fangchen Gong, Jin Wu, Ping Zhou, Mengyao Zhang, Jingning Liu, Ying Liu, Xiang Lu, Zhengxia Liu
Type 2 diabetes mellitus (T2DM) and coronary artery disease (CAD) are both characterized by chronic low-grade inflammation. The role of Th17 and its related cytokines in T2DM and CAD is unclear. Here we investigated the serum levels of five Th17-related cytokines (IL-17, IL-22, MIP-3α, IL-9, and IL-27) in T2DM, CAD, and T2DM-CAD comorbidity patients. IL-22 was found to be elevated in all three conditions. Elevated serum IL-22 was independently associated with the incidence of T2DM and CAD. Conversely, IL-22 was found to protect endothelial cells from glucose- and lysophosphatidylcholine- (LPC-) induced injury, and IL-22R1 expression on endothelial cells was increased upon treatment with high glucose and LPC...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27799933/ectopic-lymphoid-structures-powerhouse-of-autoimmunity
#10
REVIEW
Elisa Corsiero, Alessandra Nerviani, Michele Bombardieri, Costantino Pitzalis
Ectopic lymphoid structures (ELS) often develop at sites of inflammation in target tissues of autoimmune diseases, such as rheumatoid arthritis, Sjögren's syndrome, multiple sclerosis, myasthenia gravis, and systemic lupus erythematosus. ELS are characterized by the formation of organized T/B cells aggregates, which can acquire follicular dendritic cells network supporting an ectopic germinal center response. In this review, we shall summarize the mechanisms that regulate the formation of ELS in tertiary lymphoid organs, with particular emphasis on the role of lymphoid chemokines in both formation and maintenance of ELS, the role of emerging positive and negative regulators of ELS development and function, including T follicular helper cells and IL-27, respectively...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27799314/il-27-is-essential-for-suppression-of-experimental-allergic-asthma-by-the-tlr7-8-agonist-r848-resiquimod
#11
Adan Chari Jirmo, Kathleen Daluege, Christine Happle, Melanie Albrecht, Anna-Maria Dittrich, Mandy Busse, Anika Habener, Jelena Skuljec, Gesine Hansen
Different models of experimental allergic asthma have shown that the TLR7/8 agonist resiquimod (R848) is a potential inhibitor of type 2 helper cell-driven inflammatory responses. However, the mechanisms mediating its therapeutic effects are not fully understood. Using a model of experimental allergic asthma, we show that induction of IL-27 by R848 is critical for the observed ameliorative effects. R848 significantly inhibited all hallmarks of experimental allergic asthma, including airway hyperreactivity, eosinophilic airway inflammation, mucus hypersecretion, and Ag-specific Ig production...
December 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27791347/discovery-of-a-novel-jak3-selective-inhibitor-functional-differentiation-of-jak3-selective-inhibition-over-pan-jak-or-jak1-selective-inhibition
#12
Jean-Baptiste Telliez, Martin E Dowty, Lu Wang, Jason Jussif, Tsung Lin, Li Li, Erick Moy, Paul Balbo, Wei Li, Yajuan Zhao, Kimberly Crouse, Caitlyn Dickinson, Peter Symanowicz, Martin Hegen, Mary Ellen Banker, Fabien Vincent, Ray Unwalla, Sidney Liang, Adam M Gilbert, Matthew F Brown, Matthew Hayward, Justin Montgomery, Xin Yang, Jonathan Bauman, John I Trujillo, Agustin Casimiro-Garcia, Felix F Vajdos, Louis Leung, Kieran F Geoghegan, Amira Quazi, Dejun Xuan, Lyn H Jones, Erik Hett, Katherine Wright, James D Clark, Atli Thorarensen
PF-06651600, a newly discovered potent JAK3-selective inhibitor is highly efficacious at inhibiting γc cytokine signaling which is dependent on both JAK1 and JAK3. PF-06651600 allowed the comparison of JAK3-selective inhibition to pan-JAK or JAK1-selective inhibition, in relevant immune cells to a level that couldn't be achieved previously without such potency and selectivity. In vitro, PF-06651600 inhibits Th1 and Th17 cell differentiation and function, and in vivo it reduces disease pathology in the rat adjuvant-induced arthritis as well as in the mouse experimental autoimmune encephalomyelitis models...
October 28, 2016: ACS Chemical Biology
https://www.readbyqxmd.com/read/27780205/stat2-is-a-pervasive-cytokine-regulator-due-to-its-inhibition-of-stat1-in-multiple-signaling-pathways
#13
Johnathan Ho, Christin Pelzel, Andreas Begitt, Maureen Mee, Hany M Elsheikha, David J Scott, Uwe Vinkemeier
STAT2 is the quintessential transcription factor for type 1 interferons (IFNs), where it functions as a heterodimer with STAT1. However, the human and murine STAT2-deficient phenotypes suggest important additional and currently unidentified type 1 IFN-independent activities. Here, we show that STAT2 constitutively bound to STAT1, but not STAT3, via a conserved interface. While this interaction was irrelevant for type 1 interferon signaling and STAT1 activation, it precluded the nuclear translocation specifically of STAT1 in response to IFN-γ, interleukin-6 (IL-6), and IL-27...
October 2016: PLoS Biology
https://www.readbyqxmd.com/read/27748636/influence-of-5-amino-3-methyl-4-isoxazolecarbohydrazide-on-selective-gene-expression-in-caco-2-cultured-cells
#14
Paulina Płoszaj, Andrzej Regiec, Stanisław Ryng, Agnieszka Piwowar, Marian L Kruzel
The 5-amino-3-methyl-4-isoxazolecarboxylic acid hydrazide (HIX) is a synthetic isoxazole derivative with a potential for development as an anti-inflammatory drug candidate. The goal of this study was to explore in vitro autoimmune and inflammatory gene modulation by HIX in human Caco-2 cultured cells. The effect of low dose of HIX was tested on the expression level of RNA in 24h Caco-2 cultures using the QIAGEN Th17 for Autoimmunity & Inflammation RT(2) Profiler PCR Array. We choose the PCR technology as the most reliable and sensitive gene expression profiling method for analyzing specific gene regulatory networks...
October 17, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27734414/regulation-and-immune-function-of-il-27
#15
Qinghong Wang, Jianguo Liu
IL-27 is a pleiotropic cytokine that has diverse immune regulatory activities under both physiological and pathological conditions. IL-27 enhances the functions of Th1 and CD8(+) T cells, promotes the development of Tfh and Tr1, and suppresses the functions of Th2, Treg, Th9, and Th17 cells. IL-27 is also involved in regulation of immune responses of B cells, NK, DCs, and macrophages. IL-27 production is strictly regulated at both transcriptional and posttranscriptional levels. Given its broad effects on immune regulation, IL-27 has been implicated in the pathogeneses of autoimmune and infectious diseases as well as cancers...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27717524/sta-21-a-stat-3-inhibitor-attenuates-the-development-and-progression-of-inflammation-in-collagen-antibody-induced-arthritis
#16
Sheikh Fayaz Ahmad, Mushtaq Ahmad Ansari, Ahmed Nadeem, Khairy M A Zoheir, Saleh A Bakheet, Abdulaziz M S Alsaad, Othman A Al-Shabanah, Sabry M Attia
We set out to investigate the influence of STA-21, a dynamic STAT-3 inhibitor, on the expansion and progression of rheumatoid arthritis (RA), and to determine its potential mechanisms of action in a mouse model of collagen antibody-induced arthritis (CAIA). To this end, arthritis was induced via intravenous (IV) injection of Balb/c mice with a cocktail of antibodies directed against type II collagen (1.5μg/mouse, IV), followed by lipopolysaccharide (LPS) at a dose of (25μg/mouse, i.p.) on day 3. Mice were then left untreated or were simultaneously treated with STA-21 (0...
October 3, 2016: Immunobiology
https://www.readbyqxmd.com/read/27708643/differential-regulation-of-self-reactive-cd4-t-cells-in-cervical-lymph-nodes-and-central-nervous-system-during-viral-encephalomyelitis
#17
Carine Savarin, Cornelia C Bergmann, David R Hinton, Stephen A Stohlman
Viral infections have long been implicated as triggers of autoimmune diseases, including multiple sclerosis (MS), a central nervous system (CNS) inflammatory demyelinating disorder. Epitope spreading, molecular mimicry, cryptic antigen, and bystander activation have been implicated as mechanisms responsible for activating self-reactive (SR) immune cells, ultimately leading to organ-specific autoimmune disease. Taking advantage of coronavirus JHM strain of mouse hepatitis virus (JHMV)-induced demyelination, this study demonstrates that the host also mounts counteractive measures to specifically limit expansion of endogenous SR T cells...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27701741/type-i-ifn-signaling-facilitates-the-development-of-il-10-producing-effector-cd8-t-cells-during-murine-influenza-virus-infection
#18
Li Jiang, Shuyu Yao, Su Huang, Jeffrey Wright, Thomas J Braciale, Jie Sun
Recent evidence has suggested that IL-10-producing effector CD8(+) T cells play an important role in regulating excessive inflammation during acute viral infections. However, the cellular and molecular cues regulating the development of IL-10-producing effector CD8(+) T cells are not completely defined. Here we show that type I interferons (IFNs) are required for the development of IL-10-producing effector CD8(+) T cells during influenza virus infection in mice. We find that type I IFNs can enhance IL-27 production by lung antigen presenting cells, thereby facilitating IL-10-producing CD8(+) T-cell development through a CD8(+) T cell non-autonomous way...
October 4, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27687913/il-27-attenuates-airway-inflammation-in-a-mouse-asthma-model-via-the-stat1-and-gadd45%C3%AE-p38-mapk-pathways
#19
Xiaoqiong Su, Jue Pan, Fengxi Bai, Honglei Yuan, Nian Dong, Dandan Li, Xiangdong Wang, Zhihong Chen
BACKGROUND: Asthma is prone to Th2-mediated chronic airway inflammation. Interleukin-27 (IL-27) is a member of the IL-12 family that promotes the differentiation of Th1 cells and inhibits Th2 cells. We use human/mouse CD4(+) T cells to see whether IL-27 could inhibit IL-4 production in vitro and then observe whether IL-27 administration could alleviate allergic airway inflammation in vivo by mice asthma model. METHODS: We isolated and cultured CD4(+) T cells from healthy humans and mice to test whether IL-27 could inhibit IL-4 production under different conditions...
September 29, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27683036/proteomic-analysis-uncovers-common-effects-of-ifn-%C3%AE-and-il-27-on-the-hla-class-i-antigen-presentation-machinery-in-human-cancer-cells
#20
Andrea Petretto, Grazia Carbotti, Elvira Inglese, Chiara Lavarello, Maria Pia Pistillo, Valentina Rigo, Michela Croce, Luca Longo, Stefania Martini, Paola Vacca, Silvano Ferrini, Marina Fabbi
IL-27, a member of the IL-12-family of cytokines, has shown anti-tumor activity in several pre-clinical models due to anti-proliferative, anti-angiogenic and immune-enhancing effects. On the other hand, IL-27 demonstrated immune regulatory activities and inhibition of auto-immunity in mouse models. Also, we reported that IL-27, similar to IFN-γ, induces the expression of IL-18BP, IDO and PD-L1 immune regulatory molecules in human cancer cells. Here, a proteomic analysis reveals that IL-27 and IFN-γ display a broad overlap of functions on human ovarian cancer cells...
September 24, 2016: Oncotarget
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