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Interleukin receptor antagonist

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https://www.readbyqxmd.com/read/27902420/interleukin-1-receptor-antagonist-il-1ra-an-early-immunomodulatory-cytokine-induced-by-porcine-reproductive-and-respiratory-syndrome-virus-prrsv
#1
Teerawut Nedumpun, Piya Wongyanin, Chaitawat Sirisereewan, Patcharee Ritprajuk, Tanapat Palaga, Roongroje Thanawongnuwech, Sanipa Suradhat
Porcine reproductive and respiratory syndrome virus (PRRSV) infection poorly induces pro-inflammatory cytokines (IL-1, IL-6, TNF-α) and type I IFN production during the early phase of infection. Our microarray analysis indicated strong upregulation of the IL1RA gene in type 2 PRRSV infected monocyte-derived dendritic cells (MoDC). Interleukin-1 receptor antagonist (IL-1Ra) is an early inhibitory cytokine, which suppresses pro-inflammatory cytokines and T lymphocyte responses. To investigate the induction of IL-1Ra by PRRSV, MoDC were cultured with type 2 PRRSV or other swine viruses...
November 23, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27898024/perinatal-arterial-ischemic-stroke-is-associated-to-materno-fetal-immune-activation-and-intracranial-arteritis
#2
Clémence Guiraut, Nicole Cauchon, Martin Lepage, Guillaume Sébire
The medium-size intra-cranial arteries arising from the carotid bifurcation are prone to perinatal arterial ischemic strokes (PAIS). PAIS' physiopathology needs to be better understood to develop preventive and therapeutic interventions that are currently missing. We hypothesized that materno-fetal inflammation leads to a vasculitis affecting selectively the carotidian tree and promoting a focal thrombosis and subsequent stroke. Dams were injected with saline or lipopolysaccharide (LPS) from Escherichia coli...
November 25, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27897453/clinical-usefulness-of-simultaneous-measurement-of-the-tear-levels-of-ccl17-ccl24-and-il-16-for-the-biomarkers-of-allergic-conjunctival-disorders
#3
Jun Shoji, Hiroshi Aso, Noriko Inada
PURPOSE: This study investigated the clinical usefulness of a multiple tear cytokine/chemokine test by simultaneously determining tear levels of CC chemokine ligand 17 (CCL17)/thymus and activation-regulated chemokine (TARC), CCL24/eotaxin-2, and interleukin-16 (IL-16) for assessing acute and chronic allergic inflammation in allergic conjunctival disorders (ACDs). SUBJECTS AND METHODS: This study included 37 patients with ACD and 11 healthy adults (controls). Patients with ACDs were divided into the following three groups; patients with allergic conjunctivitis (AC group, n = 17), patients with atopic keratoconjunctivitis (AKC group, n = 6), and patients with vernal keratoconjunctivitis (VKC group, n = 14)...
November 29, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27895138/urotensin-ii-inhibitor-eases-neuropathic-pain-by-suppressing-the-jnk-nf-%C3%AE%C2%BAb-pathway
#4
Jing Li, Pan-Pan Zhao, Ting Hao, Dan Wang, Yu Wang, Yang-Zi Zhu, Yu-Qing Wu, Cheng-Hua Zhou
Urotensin II (U-II), a cyclic peptide originally isolated from the caudal neurosecretory system of fishes, can produce proinflammatory effects through its specific G protein-coupled receptor, GPR14. Neuropathic pain, a devastating disease, is related to excessive inflammation in the spinal dorsal horn. However, the relationship between U-II and neuropathic pain has not been reported. This study was designed to investigate the effect of U-II antagonist on neuropathic pain and to understand the associated mechanisms...
February 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/27884341/propofol-inhibits-t-helper-cell-type-2-differentiation-by-inducing-apoptosis-via-activating-gamma-aminobutyric-acid-receptor
#5
Jingxia Meng, Xin Xin, Zhen Liu, Hao Li, Bo Huang, Yuguang Huang, Jing Zhao
BACKGROUND: Propofol has been shown to attenuate airway hyperresponsiveness in asthma patients. Our previous study showed that it may alleviate lung inflammation in a mouse model of asthma. Given the critical role of T-helper cell type-2 (Th2) differentiation in asthma pathology and the immunomodulatory role of the gamma-aminobutyric acid type A (GABAA) receptor, we hypothesized that propofol could alleviate asthma inflammation by inhibiting Th2 cell differentiation via the GABA receptor...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27873165/analysing-the-effect-of-i1-imidazoline-receptor-ligands-on-dss-induced-acute-colitis-in-mice
#6
Ágnes Fehér, Viktória E Tóth, Mahmoud Al-Khrasani, Mihály Balogh, Bernadette Lázár, Zsuzsanna Helyes, Klára Gyires, Zoltán S Zádori
Imidazoline receptors (IRs) have been recognized as promising targets in the treatment of numerous diseases; and moxonidine and rilmenidine, agonists of I1-IRs, are widely used as antihypertensive agents. Some evidence suggests that IR ligands may induce anti-inflammatory effects acting on I1-IRs or other molecular targets, which could be beneficial in patients with inflammatory bowel disease (IBD). On the other hand, several IR ligands may stimulate also alpha2-adrenoceptors, which were earlier shown to inhibit, but in more recent studies to rather aggravate colitis...
November 21, 2016: Inflammopharmacology
https://www.readbyqxmd.com/read/27872853/controlled-release-of-interleukin-1-receptor-antagonist-from-hyaluronic-acid-chitosan-microspheres-attenuates-interleukin-1%C3%AE-induced-inflammation-and-apoptosis-in-chondrocytes
#7
Bo Qiu, Ming Gong, Qi-Ting He, Pang-Hu Zhou
This paper investigates the protective effect of interleukin-1 receptor antagonist (IL-1Ra) released from hyaluronic acid chitosan (HA-CS) microspheres in a controlled manner on IL-1β-induced inflammation and apoptosis in chondrocytes. The IL-1Ra release kinetics was characterized by an initial burst release, which was reduced to a linear release over eight days. Chondrocytes were stimulated with 10 ng/ml IL-1β and subsequently incubated with HA-CS-IL-1Ra microspheres. The cell viability was decreased by IL-1β, which was attenuated by HA-CS-IL-1Ra microspheres as indicated by an MTT assay...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27867357/machine-perfusion-of-porcine-livers-with-oxygen-carrying-solution-results-in-reprogramming-of-dynamic-inflammation-networks
#8
David Sadowsky, Ruben Zamora, Derek Barclay, Jinling Yin, Paulo Fontes, Yoram Vodovotz
Background:Ex vivo machine perfusion (MP) can better preserve organs for transplantation. We have recently reported on the first application of an MP protocol in which liver allografts were fully oxygenated, under dual pressures and subnormothermic conditions, with a new hemoglobin-based oxygen carrier (HBOC) solution specifically developed for ex vivo utilization. In those studies, MP improved organ function post-operatively and reduced inflammation in porcine livers. Herein, we sought to refine our knowledge regarding the impact of MP by defining dynamic networks of inflammation in both tissue and perfusate...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27858966/changes-in-interleukin-6-levels-during-electroconvulsive-therapy-may-reflect-the-therapeutic-response-in-major-depression
#9
K Järventausta, A Sorri, O Kampman, M Björkqvist, K Tuohimaa, M Hämäläinen, E Moilanen, E Leinonen, J Peltola, K Lehtimäki
OBJECTIVE: Interleukin-6 (IL-6) has been reported to be elevated in major depressive disorder (MDD) but decreased by antidepressive medication. IL-6 levels are markedly elevated both after epileptic seizures and single electroconvulsive therapy (ECT) session, but long-term changes in IL-6 levels after ECT have not been studied. The correlation between immediate and long-term changes in proinflammatory cytokines and outcome after ECT was investigated. METHOD: Thirty patients suffering from MDD participated in the study...
November 14, 2016: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/27856349/reparative-effects-of-interleukin-1-receptor-antagonist-in-young-and-aged-co-morbid-rodents-after-cerebral-ischemia
#10
Jesus M Pradillo, Katie N Murray, Graham A Coutts, Ana Moraga, Fernando Oroz-Gonjar, Herve Boutin, Maria A Moro, Ignacio Lizasoain, Nancy J Rothwell, Stuart M Allan
Neuroprotective strategies for ischemic stroke have failed to translate from bench to bedside, possibly due to the lack of consideration of key clinical co-morbidities. Stroke and co-morbidities are associated with raised levels of the pro-inflammatory cytokine interleukin-1 (IL-1). Inhibition of IL-1 by the administration of interleukin-1 receptor antagonist (IL-1Ra) has shown to be neuroprotective after experimental cerebral ischemia. Stroke can also trigger a robust neuroreparative response following injury, yet many of these new born neurons fail to survive or integrate into pre-existing circuits...
November 14, 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27853906/downregulation-of-estrogen-receptor-and-modulation-of-growth-of-breast-cancer-cell-lines-mediated-by-paracrine-stromal-cell-signals
#11
J Huang, P Woods, D Normolle, J P Goff, P V Benos, C J Stehle, R A Steinman
PURPOSE: Breast cancers have a poorer prognosis if estrogen receptor expression was lost during recurrence. It is unclear whether this conversion is cell autonomous or whether it can be promoted by the microenvironment during cancer dormancy. We explored the ability of marrow-derived stromal cell lines to arrest co-cultured breast cancer cells and suppress estrogen receptor alpha (ER) expression during arrest, facilitating the emergence of estrogen-independent breast cancer clones. METHODS: Cancer cell growth, ER protein, microRNA, and mRNA levels were measured in breast cancer cell lines exposed to conditioned medium from marrow stromal lines in the presence and absence of estrogen and of signaling pathway modulators...
November 16, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27852964/spinal-astrocytic-activation-contributes-to-mechanical-allodynia-in-a-rat-model-of-cyclophosphamide-induced-cystitis
#12
Bolong Liu, Minzhi Su, ShaoJun Tang, Xiangfu Zhou, Hailun Zhan, Fei Yang, Wenbiao Li, Tengcheng Li, Juncong Xie
BACKGROUND: Previous studies have demonstrated that glial cells play an important role in the generation and maintenance of neuropathic pain. Activated glial cells produce numerous mediators such as proinflammatory cytokines that facilitate neuronal activity and synaptic plasticity. Similarly, bladder pain syndrome/interstitial cystitis shares many characteristics of neuropathic pain. However, related report on the involvement of spinal glia in bladder pain syndrome/interstitial cystitis-associated pathological pain and the underlying mechanisms are still lacking...
2016: Molecular Pain
https://www.readbyqxmd.com/read/27852323/circulating-exosomes-from-patients-with-systemic-lupus-erythematosus-induce-an-proinflammatory-immune-response
#13
Joo Youn Lee, Jin Kyun Park, Eun Young Lee, Eun Bong Lee, Yeong Wook Song
BACKGROUND: Exosomes are involved in intercellular communication. The aim of this study was to investigate whether circulating exosomes effectively contribute to the inflammatory response in systemic lupus erythematosus (SLE). METHODS: Exosomes were purified from SLE patients and healthy controls (HCs). Healthy peripheral blood mononuclear cells (PBMCs) were stimulated with exosomes isolated from SLE patients and HCs in the presence or absence of Toll-like receptor (TLR) inhibitors...
November 16, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27847559/impaired-norepinephrine-regulation-of-monocyte-inflammatory-cytokine-balance-in-heart-failure
#14
Tien Mh Ng, Myron L Toews
AIM: To evaluate the effect of norepinephrine on inflammatory cytokine expression in ex vivo human monocytes and monocytic THP-1 cells. METHODS: For human monocyte studies, cells were isolated from 12 chronic heart failure (HF) (66 ± 12 years, New York Heart Association functional class III-IV, left ventricular ejection fraction 22% ± 9%) and 14 healthy subjects (66 ± 12 years). Monocytes (1 × 10(6)/mL) were incubated with lipopolysaccharide (LPS) 100 ng/mL, LPS + norepinephrine (NE) 10(-6) mol/L or neither (control) for 4 h...
October 26, 2016: World Journal of Cardiology
https://www.readbyqxmd.com/read/27846260/alternatively-activated-m2-macrophage-phenotype-is-inducible-by-endothelin-1-in-cultured-human-macrophages
#15
Stefano Soldano, Carmen Pizzorni, Sabrina Paolino, Amelia Chiara Trombetta, Paola Montagna, Renata Brizzolara, Barbara Ruaro, Alberto Sulli, Maurizio Cutolo
BACKGROUND: Alternatively activated (M2) macrophages are phenotypically characterized by the expression of specific markers, mainly macrophage scavenger receptors (CD204 and CD163) and mannose receptor-1 (CD206), and participate in the fibrotic process by over-producing pro-fibrotic molecules, such as transforming growth factor-beta1 (TGFbeta1) and metalloproteinase (MMP)-9. Endothelin-1 (ET-1) is implicated in the fibrotic process, exerting its pro-fibrotic effects through the interaction with its receptors (ETA and ETB)...
2016: PloS One
https://www.readbyqxmd.com/read/27843299/fenretinide-inhibits-macrophage-inflammatory-mediators-and-controls-hypertension-in-spontaneously-hypertensive-rats-via-the-peroxisome-proliferator-activated-receptor-gamma-pathway
#16
Ching-Han Lin, Shang-Yu Lee, Chun-Cheng Zhang, Ye-Fong Du, Hao-Chang Hung, Hung-Tsung Wu, Horng-Yih Ou
Fenretinide is a novel anticancer agent reported to exhibit anti-invasive and antimetastatic activities. It has also been shown to improve obesity and diabetes, although the effects of fenretinide on hypertension are still unknown, and the detailed mechanisms remain unclear. In this study, we have shown that treatment with lipopolysaccharide (LPS) decreased the expression of peroxisome proliferator-activated receptor γ (PPARγ) in RAW264.7 macrophages, and pretreatment with fenretinide reversed the effect of LPS on PPARγ expression...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27834685/antagonism-of-cannabinoid-receptor-1-attenuates-the-anti-inflammatory-effects-of-electroacupuncture-in-a-rodent-model-of-migraine
#17
Hui Zhang, Shengdong He, Youping Hu, Hui Zheng
BACKGROUND: The anti-nociceptive effects of electroacupuncture (EA) in migraine have been documented in multiple randomised controlled trials. Neurogenic inflammation plays a key role in migraine attacks, and the anti-inflammatory effects of acupuncture have been associated with the type 1 cannabinoid (CB1) receptor. OBJECTIVE: To investigate whether CB1 receptors mediate the anti-inflammatory effects of EA on migraine attacks. METHODS: A migraine model was produced in Sprague-Dawley rats by unilateral electrical stimulation of the trigeminal ganglion (TGES)...
November 10, 2016: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/27832202/helicobacter-pylori-seropositivity-in-patients-with-interleukin-1-polymorphisms-is-significantly-associated-with-st-segment-elevation-myocardial-infarction
#18
Noriaki Tabata, Daisuke Sueta, Tomonori Akasaka, Yuichiro Arima, Kenji Sakamoto, Eiichiro Yamamoto, Yasuhiro Izumiya, Megumi Yamamuro, Kenichi Tsujita, Sunao Kojima, Koichi Kaikita, Kazunori Morita, Kentaro Oniki, Junji Saruwatari, Kazuko Nakagawa, Seiji Hokimoto
BACKGROUND: Helicobacter pylori infection and interleukin-1 polymorphisms are associated with an increased risk of gastric cancer. We examined the prevalence of Helicobacter pylori seropositivity and interleukin-1 polymorphisms between ST-segment elevation myocardial infarction and non-ST-segment elevation acute coronary syndrome patients. METHODS: We recruited consecutive acute coronary syndrome patients, and 101 non-ST-segment elevation acute coronary syndrome patients and 103 ST-segment elevation myocardial infarction patients were enrolled...
2016: PloS One
https://www.readbyqxmd.com/read/27826753/intracellular-interleukin-il-1-family-cytokine-processing-enzyme
#19
REVIEW
Areum Kwak, Youngmin Lee, Hyunwoo Kim, Soohyun Kim
The interleukin (IL)-1 family is the largest family of interleukins. Eleven members of the IL-1 family of ligands are intracellular molecules, except a single isoform of an IL-1 receptor antagonist (IL-1Ra; also known as IL-1RN), which contains a signal peptide at the N-terminus for effective secretion. The inflammasome is a complex of intracellular molecules that is responsible for the processing of IL-1β and IL-18, whereas the remaining IL-1 family members, including IL-1α, are processed in an inflammasome caspase-1-independent pathway...
November 9, 2016: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/27825347/non-neuronal-cholinergic-system-contributes-to-corticosteroid-resistance-in-chronic-obstructive-pulmonary-disease-patients
#20
Javier Milara, Angela Cervera, Alfredo de Diego, Celia Sanz, Gustavo Juan, Amadeu Gavaldà, Montserrat Miralpeix, Esteban Morcillo, Julio Cortijo
BACKGROUND: Inhaled corticosteroid (ICS) with long-acting beta-2 agonists is a well-documented combination therapy for chronic obstructive pulmonary disease (COPD) based on its additive anti-inflammatory properties. By contrast, the recommendation of ICS in combination with long-acting muscarinic antagonist (LAMA) is not evidence-based. In this study, neutrophils obtained from COPD patients were used to compare the anti-inflammatory effects of aclidinium bromide (a long-acting muscarinic antagonist) with corticosteroids and their potential additive effect...
November 8, 2016: Respiratory Research
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