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Antiinflammatory cytokines

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https://www.readbyqxmd.com/read/29773643/the-transcription-factor-bhlhe40-is-a-switch-of-inflammatory-versus-antiinflammatory-th1-cell-fate-determination
#1
Fang Yu, Suveena Sharma, Dragana Jankovic, Rama Krishna Gurram, Pan Su, Gangqing Hu, Rao Li, Sadiye Rieder, Keji Zhao, Bing Sun, Jinfang Zhu
Type 1 T helper (Th1) cells play a critical role in host defense against intracellular pathogens and in autoimmune diseases by producing a key inflammatory cytokine interferon (IFN)-γ; some Th1 cells can also be antiinflammatory through producing IL-10. However, the molecular switch for regulating the differentiation of inflammatory and antiinflammatory Th1 cells is still elusive. Here, we show that Bhlhe40 -deficient CD4 Th1 cells produced less IFN-γ but substantially more IL-10 than wild-type Th1 cells both in vitro and in vivo...
May 17, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29760540/ambiguous-roles-of-innate-lymphoid-cells-in-chronic-development-of-liver-diseases
#2
REVIEW
Yue Shen, Jing Li, Si-Qi Wang, Wei Jiang
Innate lymphoid cells (ILCs) are defined as a distinct arm of innate immunity. According to their profile of secreted cytokines and lineage-specific transcriptional factors, ILCs can be categorized into the following three groups: group 1 ILCs (including natural killer (NK) cells and ILC1s) are dependent on T-bet and can produce interferon-γ; group 2 ILCs (ILC2s) are dependent on GATA3 and can produce type 2 cytokines, including interleukin (IL)-5 and IL-13; and, group 3 ILCs (including lymphoid tissue-like cells and ILC3s) are dependent on RORγt and can produce IL-22 and IL-17...
May 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29750051/angiotensin-ii-type-2-receptor-agonist-compound-21-attenuates-pulmonary-inflammation-in-a-model-of-acute-lung-injury
#3
Mario Menk, Jan Adriaan Graw, Clarissa von Haefen, Hendrik Steinkraus, Burkhard Lachmann, Claudia D Spies, David Schwaiberger
Purpose: Although the role of the angiotensin II type 2 (AT2) receptor in acute lung injury is not yet completely understood, a protective role of this receptor subtype has been suggested. We hypothesized that, in a rodent model of acute lung injury, stimulation of the AT2 receptor with the direct agonist Compound 21 (C21) might have a beneficial effect on pulmonary inflammation and might improve pulmonary gas exchange. Materials and methods: Male adult rats were divided into a treatment group that received pulmonary lavage followed by mechanical ventilation (LAV, n=9), a group receiving pulmonary lavage, mechanical ventilation, and direct stimulation of the AT2 receptor with C21 (LAV+C21, n=9), and a control group that received mechanical ventilation only (control, n=9)...
2018: Journal of Inflammation Research
https://www.readbyqxmd.com/read/29713131/sodium-chloride-exacerbates-dextran-sulfate-sodium-induced-colitis-by-tuning-proinflammatory-and-antiinflammatory-lamina-propria-mononuclear-cells-through-p38-mapk-pathway-in-mice
#4
Hong-Xia Guo, Nan Ye, Ping Yan, Min-Yue Qiu, Ji Zhang, Zi-Gang Shen, Hai-Yang He, Zhi-Qiang Tian, Hong-Li Li, Jin-Tao Li
AIM: To investigate the influence of high salt on dextran sulfate sodium (DSS)-induced colitis in mice and explore the underlying mechanisms of this effect. METHODS: DSS and NaCl were used to establish the proinflammatory animal model. We evaluated the colitis severity. Flow cytometry was employed for detecting the frequencies of Th1, macrophages and Tregs in spleen, mesenteric lymph node and lamina propria. The important role of macrophages in the promotion of DSS-induced colitis by NaCl was evaluated by depleting macrophages with clodronate liposomes...
April 28, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29713130/mucosa-repair-mechanisms-of-tong-xie-yao-fang-mediated-by-crh-r2-in-murine-dextran-sulfate-sodium-induced-colitis
#5
Shan-Shan Gong, Yi-Hong Fan, Shi-Yi Wang, Qing-Qing Han, Bin Lv, Yi Xu, Xi Chen, Yao-Er He
AIM: To explore the significance of corticotropin-releasing hormone (CRH)-receptor (R)2 in mucosal healing of dextran sulfate sodium (DSS)-induced colitis and the effect of Tong-Xie-Yao-Fang (TXYF) on CRH-R2 expression and regulation. METHODS: Ulcerative colitis was induced in mice by administration of 3% (w/v) DSS for 7 d. Once the model was established, mice were administered urocortin-2 (30 μg/kg), a peptide which binds exclusively to CRH-R2, or various doses of aqueous TXYF extracts (2...
April 28, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29694253/serum-levels-of-proinflammatory-antiinflammatory-cytokines-and-rankl-opg-in-synovitis-acne-pustulosis-hyperostosis-and-osteitis-sapho-syndrome
#6
Shuo Zhang, Chen Li, Siya Zhang, Li Li, Weihong Zhang, Zhenhua Dong, Wen Zhang
Objective To measure the expression of proinflammatory, antiinflammatory cytokines, and RANKL/OPG in SAPHO Syndrome, and to assess the relationship between those factors and disease activity. Methods We studied 30 cases of SAPHO syndrome and 15 healthy controls. According to the visual analogue scale pain scores and Bath ankylosing spondylitis activity index, patients were divided into active group and stable group. The serum levels of IFN-γ, TNF-α, TGF-β1, IL-1β, IL-4, IL-6, IL-8, IL-17A, IL-22, receptor activator NK-κB ligand (RANKL) and osteoprotegerin (OPG) were determined by ELISA...
April 25, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29692651/influence-of-crocetin-on-high-cholesterol-diet-induced-atherosclerosis-in-rats-via-anti-oxidant-activity-together-with-inhibition-of-inflammatory-response-and-p38-mapk-signaling-pathway
#7
Shu-Ling Diao, Jing-Wu Sun, Bao-Xin Ma, Xiao-Mei Li, Dong Wang
The present study aimed to investigate the effect and possible mechanism of action of crocetin on the high cholesterol diet (HCD) induced atherosclerosis rat. The Wistar rats were used in the current investigation. The rats were divided into following group, Group I: control, Group II: HCD induced AS, Group III: AS + crocetin (25 mg/kg), Group IV: AS + crocetin (50 mg/kg) and Group V: AS + Simvastatin, respectively. AS was induced in the rats using the vitamin D3 and HCD. The rats received the pre-determined treatment for the 10 weeks...
March 2018: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29691302/repressing-the-repressor-ezh2-mediates-macrophage-activation
#8
Annette E Neele, Menno P J de Winther
In this issue of JEM , Zhang et al. (https://doi.org/10.1084/jem.20171417) show that the suppressive epigenetic enzyme Ezh2 is an important regulator of macrophage activation. The absence of Ezh2 leads to reduced cytokine secretion and suppresses macrophage-dependent disease development. They identify the antiinflammatory factor Socs3 as an important target for Ezh2 and thus show that regulation of suppressive histone modifications controls macrophage activation in disease.
April 24, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29681148/synthesis-and-biological-evaluation-of-derivatives-of-indoline-as-highly-potent-antioxidant-and-antiinflammatory-agents
#9
Shani Zeeli, Tehilla Weill, Efrat Finkin-Groner, Corina Bejar, Michal Melamed, Svetlana Furman, Michael Zhenin, Abraham Nudelman, Marta Weinstock
We describe the preparation and evaluation of novel indoline derivatives with potent antioxidant and anti-inflammatory activities for the treatment of pathological conditions associated with chronic inflammation. The indolines are substituted at position 1 with chains carrying amino, ester, amide or alcohol groups and some have additional substituents, Cl, MeO, Me, F, HO or BnO on the benzo ring. Concentrations of 10 pM-1 nM of the compounds protected RAW264.7 macrophages against H2O2 induced cytotoxicity and LPS induced elevation of NO, TNF-α and IL-6...
April 22, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29676640/a-pilot-study-assessing-the-ability-of-5-aminosalicylic-acid-to-modulate-the-immune-response-in-chronic-beryllium-disease
#10
Brian J Day, Jie Huang, Briana Q Barkes, May Gillespie, Li Li, Lisa A Maier
Chronic beryllium disease is a granulomatous lung disease, characterized by the accumulation of macrophages and beryllium-specific CD4+ T-cells that proliferate and produce T-helper cell type 1 cytokines. Previous studies indicate that beryllium-mediated oxidative stress enhances cytokine response in chronic beryllium disease CD4+ T-cells. 5-Aminosalicylic acid (5-ASA) is currently used to treat inflammatory bowel disease and has both antioxidant and antiinflammatory actions. We hypothesized that 5-ASA therapy may be a beneficial therapy in chronic beryllium disease...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29662760/macrophages-and-bone-inflammation
#11
REVIEW
Qiaoli Gu, Huilin Yang, Qin Shi
Bone metabolism is tightly regulated by the immune system. Accelerated bone destruction is observed in many bone diseases, such as rheumatoid arthritis, fracture, and particle-induced osteolysis. These pathological conditions are associated with inflammatory responses, suggesting the contribution of inflammation to bone destruction. Macrophages are heterogeneous immune cells and are polarized into the proinflammatory M1 and antiinflammatory M2 phenotypes in different microenvironments. The cytokines produced by macrophages depend on the macrophage activation and polarization...
July 2017: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29618659/mesenchymal-tnfr2-promotes-the-development-of-polyarthritis-and-comorbid-heart-valve-stenosis
#12
Maria Sakkou, Panagiotis Chouvardas, Lydia Ntari, Alejandro Prados, Kristin Moreth, Helmut Fuchs, Valerie Gailus-Durner, Martin Hrabe de Angelis, Maria C Denis, Niki Karagianni, George Kollias
Mesenchymal TNF signaling is etiopathogenic for inflammatory diseases such as rheumatoid arthritis and spondyloarthritis (SpA). The role of Tnfr1 in arthritis has been documented; however, Tnfr2 functions are unknown. Here, we investigate the mesenchymal-specific role of Tnfr2 in the TnfΔARE mouse model of SpA in arthritis and heart valve stenosis comorbidity by cell-specific, Col6a1-cre-driven gene targeting. We find that TNF/Tnfr2 signaling in resident synovial fibroblasts (SFs) and valvular interstitial cells (VICs) is detrimental for both pathologies, pointing to common cellular mechanisms...
April 5, 2018: JCI Insight
https://www.readbyqxmd.com/read/29604596/submicron-emulsion-of-cinnamaldehyde-ameliorates-bleomycin-induced-idiopathic-pulmonary-fibrosis-via-inhibition-of-inflammation-oxidative-stress-and-epithelial-mesenchymal-transition
#13
Li Yan, Fan Song, Hua Li, Yao Li, Jie Li, Qiao-Yan He, Di Zhang, Fang Wang, Meng Zhang, Hang Zhao, Tian Feng, Ying-Yong Zhao, Si-Wang Wang
AIMS: Idiopathic pulmonary fibrosis (IPF) is the most frequent and severe form of idiopathic interstitial pneumonias. The pathogenesis is associated with inflammation and oxidative stress and epithelial-mesenchymal transition (EMT). Cinnamaldehyde exhibits antiinflammatory and antioxidant properties, but its effect on IPF is unknown. The present study is to investigate the anti-fibrotic effect and action mechanism of cinnamaldehyde on IPF. MATERIALS AND METHODS: IPF was induced by intratracheal bleomycin in mice...
March 28, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29550799/nocturnal-resveratrol-administration-inhibits-chemically-induced-breast-cancer-formation-in-rats
#14
T Kiskova, V Demeckova, Z Jendzelovska, M Kiktava, K Venglovska, M Bohmdorfer, W Jager, T Thalhammer
Resveratrol (RES) is well known natural polyphenol with proven antioxidant, antiinflammatory and anticarcinogenic properties. Since mode of application may be important for cancer-preventive effects of RES, the aim of this study was to evaluate a possible delay in the initiation and progression of chemically induced mammary carcinogenesis in female Sprague-Dawley rats after the nocturnal administration of RES. Application of a high dose of RES (100 mg/kg body weight), starting 2 weeks before the first N-methyl-N-nitrosourea dose (NMU) (50 mg/kg body weight), reduced tumor incidence and markedly prolonged latency period (P < 0...
December 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29549113/selective-inhibition-of-the-p38%C3%AE-mapk-mk2-axis-inhibits-inflammatory-cues-including-inflammasome-priming-signals
#15
Chun Wang, Susan Hockerman, E Jon Jacobsen, Yael Alippe, Shaun R Selness, Heidi R Hope, Jeffrey L Hirsch, Stephen J Mnich, Matthew J Saabye, William F Hood, Sheri L Bonar, Yousef Abu-Amer, Ariela Haimovich, Hal M Hoffman, Joseph B Monahan, Gabriel Mbalaviele
p38α activation of multiple effectors may underlie the failure of global p38α inhibitors in clinical trials. A unique inhibitor (CDD-450) was developed that selectively blocked p38α activation of the proinflammatory kinase MK2 while sparing p38α activation of PRAK and ATF2. Next, the hypothesis that the p38α-MK2 complex mediates inflammasome priming cues was tested. CDD-450 had no effect on NLRP3 expression, but it decreased IL-1β expression by promoting IL-1β mRNA degradation. Thus, IL-1β is regulated not only transcriptionally by NF-κB and posttranslationally by the inflammasomes but also posttranscriptionally by p38α-MK2...
March 16, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29515028/impaired-tlr9-responses-in-b-cells-from-patients-with-systemic-lupus-erythematosus
#16
Vincent Gies, Jean-Nicolas Schickel, Sophie Jung, Aurélie Joublin, Salomé Glauzy, Anne-Marie Knapp, Anne Soley, Vincent Poindron, Aurélien Guffroy, Jin-Young Choi, Jacques-Eric Gottenberg, Jennifer H Anolik, Thierry Martin, Pauline Soulas-Sprauel, Eric Meffre, Anne-Sophie Korganow
B cells play a central role in systemic lupus erythematosus (SLE) pathophysiology but dysregulated pathways leading to a break in B cell tolerance remain unclear. Since Toll-like receptor 9 (TLR9) favors the elimination of autoreactive B cells in the periphery, we assessed TLR9 function in SLE by analyzing the responses of B cells and plasmacytoid dendritic cells (pDCs) isolated from healthy donors and patients after stimulation with CpG, a TLR9 agonist. We found that SLE B cells from patients without hydroxychloroquine treatment displayed defective in vitro TLR9 responses, as illustrated by the impaired upregulation of B cell activation molecules and the diminished production of various cytokines including antiinflammatory IL-10...
March 8, 2018: JCI Insight
https://www.readbyqxmd.com/read/29515024/identification-of-periplakin-as-a-major-regulator-of-lung-injury-and-repair-in-mice
#17
Valérie Besnard, Rania Dagher, Tania Madjer, Audrey Joannes, Madeleine Jaillet, Martin Kolb, Philippe Bonniaud, Lynne A Murray, Matthew A Sleeman, Bruno Crestani
Periplakin is a component of the desmosomes that acts as a cytolinker between intermediate filament scaffolding and the desmosomal plaque. Periplakin is strongly expressed by epithelial cells in the lung and is a target antigen for autoimmunity in idiopathic pulmonary fibrosis. The aim of this study was to determine the role of periplakin during lung injury and remodeling in a mouse model of lung fibrosis induced by bleomycin. We found that periplakin expression was downregulated in the whole lung and in alveolar epithelial cells following bleomycin-induced injury...
March 8, 2018: JCI Insight
https://www.readbyqxmd.com/read/29474201/mechanical-ventilation-induces-desensitization-of-lung-axl-tyrosine-kinase-receptors
#18
Gail Otulakowski, Doreen Engelberts, Martin Post, Claire Masterson, Brian P Kavanagh
BACKGROUND: Lower tidal volumes are increasingly used in acute respiratory distress syndrome, but mortality has changed little in the last 20 yr. Therefore, in addition to ventilator settings, it is important to target molecular mediators of injury. Sepsis and other inflammatory states increase circulating concentrations of Gas6, a ligand for the antiinflammatory receptor Axl, and of a soluble decoy form of Axl. We investigated the effects of lung stretch on Axl signaling. METHODS: We used a mouse model of early injury from high tidal volume and assessed the effects of inhibiting Axl on in vivo lung injury (using an antagonist R428, n = 4/group)...
February 23, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29415889/irhom2-mediated-proinflammatory-signalling-regulates-heart-repair-following-myocardial-infarction
#19
Damien N Barnette, Thomas J Cahill, Mala Gunadasa-Rohling, Carolyn A Carr, Matthew Freeman, Paul R Riley
The role of proinflammation, and specifically TNF-α, on downstream fibrosis and healing after cardiac injury remains unknown. Using iRhom2-deficient mice, which lack myeloid-specific shedding of TNF-α, we reveal increased macrophages (MΦs) that were skewed towards a more proinflammatory (M1) state at day 4, followed by more reparative, antiinflammatory (M2) state at day 7 after myocardial infarction (MI). However, associated functional cytokine expression was significantly reduced in iRhom2-mutant M1 and M2 MΦs, respectively...
February 8, 2018: JCI Insight
https://www.readbyqxmd.com/read/29414152/inflammation-role-in-sensory-neuropathy-in-chinese-patients-with-diabetes-prediabetes
#20
Jing Zeng, Yalin Xu, Yao Shi, Chenyin Jiang
OBJECTIVES: Prediabetes involves people with glucose-metabolism impairment, and is related to different diabetic complications, like peripheral neuropathy. We aimed to explore the relationship among inflammatory (tumor necrosis factor alpha [TNFα]) and antiinflammatory (interleukin 10 [IL10]) cytokines as well as neuropathy of very distal-sensory-nerves in Chinese patients with prediabetes/diabetes. PATIENTS AND METHODS: In the present study, 55 patients having prediabetes, 55 patients having type 2 diabetes mellitus (DM), and 48 controls were included...
March 2018: Clinical Neurology and Neurosurgery
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