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https://www.readbyqxmd.com/read/28109175/langerhans-cell-markers-cd1a-and-cd207-are-the-most-rapidly-responding-genes-in-lesional-psoriatic-skin-following-adalimumab-treatment
#1
L Raaby, C Rosada, A Langkilde, K L Lauridsen, H Vinter, P Ommen, R B Kjellerup, C Johansen, L Iversen
TNFα-, IL-23- and IL-17-targeting drugs are highly effective in the treatment of psoriasis. However, the precise molecular mechanism remains unknown. In psoriatic skin the presence of Langerhans cells (LC) is reduced, but the role of LC is poorly understood. The purpose of this study was to investigate the impact of TNFα and IL-23/IL-17 on the presence of LC in the skin during treatment. Therefore, psoriatic skin was investigated before and after 4 days of adalimumab or ustekinumab treatment. Furthermore, TNFα and IL-17A stimulation was investigated in an ex vivo model of epidermis and dermis from healthy normal skin kept in cultures at an air-liquid interphase for 4 days...
January 21, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28109144/-interferon-regulatory-factor-5-irf5-regulates-the-differentiation-of-bone-marrow-derived-macrophages-in-mice
#2
Kang Sun, Jianguo Qu, Jixiang Chen, Shengchun Dang, Songbing He, Jin Zhang, Rong Xie, Yun Wang, Jianxin Zhang
Objective To investigate the expression differences of interferon regulatory factor 5 (IRF5) between M1 and M2 macrophages derived from mouse bone marrow and the effects of small interfering RNA targeting IRF5 gene (IRF5 siRNA) on macrophage differentiation. Methods With the treatment of IFN-γ and lipopolysaccharide (LPS), mouse bone marrow-derived macrophages were differentiated into M1 macrophages; while with the treatment of IL-4, mouse bone marrow-derived macrophages were differentiated into M2 macrophages...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109143/-decreased-number-and-immune-activity-of-splenic-t-lymphocytes-in-mice-exposed-to-hypoxia-at-high-altitude
#3
Xiaona Zhang, Jidong Li, Fangjie Hu, Shilan Gao, Xiaoyan Pu, Sheng Yong
Objective To explore the changes of splenic T lymphocyte subsets and functions in mice under high-altitude hypoxic conditions. Methods After mice were exposed to an altitude of 400 m, 2200 m and 4200 m for 30 days, ELISA was used to detect the concentrations of interleukin-4 (IL-4) and interferon-γ (IFN-γ) in the cultured splenocyte supernatant; MTT assay was used to analyze the proliferation of splenic T lymphocytes; flow cytometry was performed to examine the alterations of splenic T lymphocyte subsets...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109017/clostridium-butyricum-b1-alleviates-high-fat-diet-induced-steatohepatitis-in-mice-via-enterohepatic-immunoregulation
#4
Da Zhou, Qin Pan, Xiao-Lin Liu, Rui-Xu Yang, Yuan-Wen Chen, Chang Liu, Jian-Gao Fan
BACKGROUND AND AIM: Enterohepatic immunologic derangement is associated with nonalcoholic steatohepatitis (NASH). Here, we investigated whether Clostridium butyricum B1 (CB) would be an effective immune-targeted substance to attenuate steatohepatitis in mice. METHODS: Thirty mice were randomized into a control group fed with common forage, a high-fat diet (HFD) group fed a HFD for 16 weeks, and a HFD + CB group treated with CB for the latter 8 weeks. Inflammation- or metabolism-associated genes in the liver or epididymal fat tissue were quantified, intrahepatic and intestinal immune factors were detected...
January 20, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28108985/the-th2-gene-cluster-unraveled-role-of-rhs6
#5
EDITORIAL
Cameron H Flayer, Angela Haczku
Although the transcription factors that regulate T helper (Th) type 2 cytokine production (IL-4, IL-5, and IL-13) are possible novel therapeutic targets, we lack a detailed understanding of the mechanisms that regulate the transcription of these cytokines. In this issue of Allergy, Hwang et al. studied the role of a specific DNA region (a cis-acting element called Rad50 hypersensitive site 6) RHS6, in the development of allergic airway inflammation. RHS6 is found in the Th2 cytokine "locus control region" but its role in activation of the IL-4, IL-5, and IL-13 genes was unknown...
January 20, 2017: Allergy
https://www.readbyqxmd.com/read/28108850/baicalein-promotes-neuronal-and-behavioral-recovery-after-intracerebral-hemorrhage-via-suppressing-apoptosis-oxidative-stress-and-neuroinflammation
#6
Ning Wei, Yinghai Wei, Binru Li, Linlin Pang
Intracerebral hemorrhage (ICH) is an important public health problem in neurology, which is not only associated with high mortality but also leading to disability. Yet no satisfactory treatment has been developed. The secondary injury that resulted from a number of self-destructive processes such as neuroinflammation, apoptosis and oxidative stress, is the key factor contributing to ICH-induced brain damage. Baicalein has been proved to improve neuronal functional recovery in rat model of subarachnoid hemorrhage and ischemic brain damage...
January 21, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28108813/relationship-between-il-27-and-coronary-arterial-lesions-in-children-with-kawasaki-disease
#7
Feifei Si, Yao Wu, Fang Gao, Siqi Feng, Ruixi Liu, Qijian Yi
Kawasaki disease (KD) arises due to the disorder of the inflammation response and faulty immune regulation. Interleukin-27 (IL-27) is a novel cytokine with both pro-inflammatory and anti-inflammatory effects. This study investigated the relationship between serum levels of IL-27, Interleukin-17A (IL-17A), Interleukin-10 (IL-10), Interleukin-6 (IL-6), Interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α) and coronary artery lesions (CALs) in patients with KD. We obtained blood samples from 81 children with KD before intravenous immunoglobulin (IVIG) therapy...
January 20, 2017: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/28108746/myeloid-derived-suppressor-cells-can-be-efficiently-generated-from-human-hematopoietic-progenitors-and-peripheral-blood-monocytes
#8
Sílvia Casacuberta-Serra, Marta Parés, Arantxa Golbano, Elisabet Coves, Carmen Espejo, Jordi Barquinero
Myeloid-derived suppressor cells (MDSCs) play an important role in controlling inflammation. As such, they are both a therapeutic target and, based on the administration of ex-vivo-generated MDSCs, a therapeutic tool. However, there are relatively few reports describing methods to generate human MDSCs, and most of them rely on cells obtained from peripheral blood monocytes. We investigated alternative approaches to the generation of MDSCs from hematopoietic progenitors and monocytes. Purified CD34(+) hematopoietic progenitors from apheresis products and CD14(+) cells isolated from buffy coats were cultured in the presence of different combinations of cytokines...
January 21, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28108611/reversal-of-diabetes-in-nod-mice-by-clinical-grade-proinsulin-and-il-10-secreting-lactococcus-lactis-in-combination-with-low-dose-anti-cd3-depends-on-the-induction-of-foxp3-positive-t-cells
#9
Tatiana Takiishi, Dana Paulina Cook, Hannelie Korf, Guido Sebastiani, Francesca Mancarella, João Paulo Monteiro Carvalho Mori Cunha, Clive Wasserfall, Noelia Casares, Juan José Lasarte, Lothar Steidler, Pieter Rottiers, Francesco Dotta, Conny Gysemans, Chantal Mathieu
The introduction of β-cell autoantigens via the gut through Lactococcus lactis (L. lactis) has been demonstrated to be a promising approach for diabetes reversal in NOD mice. Here we show that a combination therapy of low-dose anti-CD3 with a clinical-grade self-containing L. lactis, appropriate for human application, secreting human proinsulin and interleukin-10, cured 66% of mice with new-onset diabetes, which is comparable to therapy results with plasmid-driven L. lactis Initial blood glucose concentrations (<350 mg/dL) and insulin autoantibody positivity were predictors of the stable reversal of hyperglycemia, and decline in insulin autoantibody positivity was an immune biomarker of therapeutic outcome...
February 2017: Diabetes
https://www.readbyqxmd.com/read/28108420/neutrophil-derived-microparticles-increase-mortality-and-the-counter-inflammatory-response-in-a-murine-model-of-sepsis
#10
Bobby L Johnson, Emily F Midura, Priya S Prakash, Teresa C Rice, Natalia Kunz, Kathrin Kalies, Charles C Caldwell
Although advances in medical care have significantly improved sepsis survival, sepsis remains the leading cause of death in the ICU. This is likely due to a lack of complete understanding of the pathophysiologic mechanisms that lead to dysfunctional immunity. Neutrophil derived microparticles (NDMPs) have been shown to be the predominant microparticle present at infectious and inflamed foci in human models, however their effect on the immune response to inflammation and infection is sepsis has not been fully elucidated...
January 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28108339/transcriptome-analysis-of-the-effect-of-polyunsaturated-fatty-acids-against-vibrio-vulnificus-infection-in-oreochromis-niloticus
#11
Chieh-Yu Pan, Yu-Hao Liu, Hong-Yi Gong, Jyh-Yih Chen
Vibrio vulnificus infection causes severe economic losses in Oreochromis niloticus aquaculture by inducing pro-inflammatory cytokines, that lead to inflammation and mortality. Omega-3 fatty acids, such as Docosahexaenoic acid (DHA) and Eicosapentaenoic acid (EPA), have been reported for their anti-inflammatory and antibacterial abilities in murine and zebrafish models. However, the anti-inflammatory and antibacterial functions of DHA and EPA in commercial aquaculture organisms such as Oreochromis niloticus remain unknown...
January 17, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28107868/effect-of-ppar%C3%AE-agonist-rosiglitazone-on-the-secretion-of-th2-cytokine-in-asthma-mice
#12
Ji-Hui Yu, Li Long, Zhi-Xiao Luo, Jie-Ru You
OBJECTIVE: To explore the effect of PPARγ agonist (rosiglitazone) on the secretion of Th2 cytokines and the proportion of immune cell subsets in asthma mice. METHODS: Ovalbumin (OVA)-sensitized mice were used to build asthma models. Those mice were divided into the normal control group, model group and rosiglitazone group. Differences of the changes in lung histopathology of mice in the three groups were observed through hematoxylin and eosin (HE) strain, and the numbers of the total cells, eosinophils and neutrophils in BALF of mice in the three groups were compared...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28107754/hyperoside-attenuates-ova-induced-allergic-airway-inflammation-by-activating-nrf2
#13
Peng Ye, Xi-Liang Yang, Xing Chen, Cai Shi
Allergic airways disease (AAD) is one of the most common medical illnesses that is associated with an increased allergic airway inflammation. Hyperoside, an active compound isolated from Rhododendron brachycarpum G. Don, has been reported to have anti-inflammatory effect. The aim of this study was to analyze the protective effect of hyperoside on OVA-induced allergic airway inflammation in mice. In the present study, the mouse asthma model was induced by given OVA and hyperoside was administrated 1h before OVA challenge...
January 17, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28106785/ketamine-analog-methoxetamine-induced-inflammation-and-dysfunction-of-bladder-in-rats
#14
Qiang Wang, Qinghui Wu, Junpeng Wang, Yang Chen, Guihao Zhang, Jiawei Chen, Jie Zhao, Peng Wu
The novel synthetic psychoactive ketamine analog methoxetamine is reportedly being used for recreational purposes. As ketamine use can result in urinary dysfunction, we conducted the present study to investigate how methoxetamine affects the bladder. A cystometry investigation showed that female Sprague-Dawley rats experienced increased micturition frequency bladder dysfunction after receiving a daily intraperitoneal injection of 30 mg/kg methoxetamine or ketamine for periods of 4 or 12 weeks. Histologic examinations of rat bladder tissue revealed damaged urothelium barriers, as well as evidence of inflammatory cell infiltration and matrix deposition...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106783/extract-of-polygala-tenuifolia-alleviates-stress-exacerbated-atopy-like-skin-dermatitis-through-the-modulation-of-protein-kinase-a-and-p38-mitogen-activated-protein-kinase-signaling-pathway
#15
Bongjun Sur, Bombi Lee, Ye Seul Yoon, Pooreum Lim, Riwon Hong, Mijung Yeom, Hyang Sook Lee, Hijoon Park, Insop Shim, Hyejung Lee, Young Pyo Jang, Dae-Hyun Hahm
Atopic dermatitis (AD) and stress create a vicious cycle: stress exacerbates atopic symptoms, and atopic disease elicits stress and anxiety. Targeting multiple pathways including stress and allergic inflammation is, therefore, important for treating AD. In this study, we investigated the remedial value of Polygala tenuifolia Willd. (PTW) for treating immobilization (IMO) stress-exacerbated atopy-like skin dermatitis and its underlying mechanism. Trimellitic anhydride (TMA) was applied to dorsal skin for sensitization and subsequently both ears for eliciting T-cell-dependent contact hypersensitivity in mice, which underwent 2 h-IMO stress and PTW administration for the latter 6 and 9 days in the ear exposure period of TMA, respectively...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106546/a-common-variant-of-il-6r-is-associated-with-elevated-il-6-pathway-activity-in-alzheimer-s-disease-brains
#16
Patrick C G Haddick, Jessica L Larson, Nisha Rathore, Tushar R Bhangale, Qui T Phung, Karpagam Srinivasan, David V Hansen, Jennie R Lill, Margaret A Pericak-Vance, Jonathan Haines, Lindsay A Farrer, John S Kauwe, Gerard D Schellenberg, Carlos Cruchaga, Alison M Goate, Timothy W Behrens, Ryan J Watts, Robert R Graham, Joshua S Kaminker, Marcel van der Brug
The common p.D358A variant (rs2228145) in IL-6R is associated with risk for multiple diseases and with increased levels of soluble IL-6R in the periphery and central nervous system (CNS). Here, we show that the p.D358A allele leads to increased proteolysis of membrane bound IL-6R and demonstrate that IL-6R peptides with A358 are more susceptible to cleavage by ADAM10 and ADAM17. IL-6 responsive genes were identified in primary astrocytes and microglia and an IL-6 gene signature was increased in the CNS of late onset Alzheimer's disease subjects in an IL6R allele dependent manner...
January 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28106314/role-of-cytokine-changes-in-clozapine-induced-fever-a-cohort-prospective-study
#17
Yuan-Pin Hung, Carol Sheei-Meei Wang, Chia-Nan Yen, Hsun-Cheng Chang, Po See Chen, I Hui Lee, Kao Chin Chen, Yen Kuang Yang, Ru-Band Lu, Tzu-Yun Wang
AIM: Clozapine-associated fever is common but the specific cytokine changes and treatment durations that may cause fever remain unknown. We investigate the association between inflammatory cytokine changes and clozapine-induced fever in patients who were treated with clozapine. METHODS: Forty-three patients with schizophrenia or schizoaffective disorder, diagnosed by using the Chinese Version of the Mini International Neuropsychiatric Interview, were treated with clozapine for the first time (first-time use group, n = 22) or more than 6 months (long-term use group, n = 21)...
January 20, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28106273/the-immunoglobulin-superfamily-member-cd200r-identifies-cells-involved-in-type-2-immune-responses
#18
Lars H Blom, Britta C Martel, Lau F Larsen, Camilla V Hansen, Malene P Christensen, Nanna Juel-Berg, Thomas Litman, Lars K Poulsen
BACKGROUND: The pathology of allergic diseases involves type 2 immune cells, such as Th2, ILC2, and basophils exerting their effect by production of IL-4, IL-5, and IL-13. However, surface receptors that are specifically expressed on type 2 immune cells are less well documented. The aim of this investigation was to identify surface markers associated with type 2 inflammation. METHODS: Naïve human CD4(+) T-cells were short-term activated in the presence or absence of IL-4, and analysed for expression of >300 cell-surface proteins...
January 20, 2017: Allergy
https://www.readbyqxmd.com/read/28106157/tlr4-antagonist-fp7-inhibits-lps-induced-cytokine-production-and-glycolytic-reprogramming-in-dendritic-cells-and-protects-mice-from-lethal-influenza-infection
#19
Laure Perrin-Cocon, Anne Aublin-Gex, Stefania E Sestito, Kari Ann Shirey, Mira C Patel, Patrice André, Jorge C Blanco, Stefanie N Vogel, Francesco Peri, Vincent Lotteau
Dysregulated Toll-like receptor (TLR)-4 activation is involved in acute systemic sepsis, chronic inflammatory diseases, such as atherosclerosis and diabetes, and in viral infections, such as influenza infection. Thus, therapeutic control of the TLR4 signalling pathway is of major interest. Here we tested the activity of the small-molecule synthetic TLR4 antagonist, FP7, in vitro on human monocytes and monocyte-derived dendritic cells (DCs) and in vivo during influenza virus infection of mice. Our results indicate that FP7 antagonized the secretion of proinflammatory cytokines (IL-6, IL-8, and MIP-1β) by monocytes and DCs (IC50 < 1 μM) and prevented DC maturation upon TLR4 activation by ultrapure lipopolysaccharide (LPS)...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105558/immunology-of-bee-venom
#20
REVIEW
Daniel Elieh Ali Komi, Farzaneh Shafaghat, Ricardo D Zwiener
Bee venom is a blend of biochemicals ranging from small peptides and enzymes to biogenic amines. It is capable of triggering severe immunologic reactions owing to its allergenic fraction. Venom components are presented to the T cells by antigen-presenting cells within the skin. These Th2 type T cells then release IL-4 and IL-13 which subsequently direct B cells to class switch to production of IgE. Generating venom-specific IgE and crosslinking FcεR1(s) on the surface of mast cells complete the sensitizing stage in allergic individuals who are most likely to experience severe and even fatal allergic reactions after being stung...
January 20, 2017: Clinical Reviews in Allergy & Immunology
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