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Interleukin 1 receptor antagonist

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https://www.readbyqxmd.com/read/29345164/a-positive-association-between-interleukin-1-receptor-antagonist-and-insulin-resistance-in-postmenopausal-women
#1
Chii-Min Hwu, Hung-Hsiang Liou, Chung-Jen Lee, Bang-Gee Hsu
OBJECTIVE: The purpose of this study was to determine whether higher circulating interleukin-1 receptor antagonist (IL-1Ra), an anti-inflammatory cytokine, was associated with insulin resistance in postmenopausal women. METHODS: We measured IL-1Ra concentrations in 160 naturally postmenopausal women without a history of diabetes mellitus. A Pearson coefficient was computed to assess the relationship between plasma IL-1Ra and homeostasis model assessment of insulin resistance (HOMA-IR)...
January 18, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29344744/interleukin-1-receptor-antagonist-inhibits-angiogenesis-in-gastric-cancer
#2
Zhenqiang Gong, Jiachi Ma, He Su, Tiankang Guo, Hui Cai, Quan Chen, Xiaodan Zhao, Jianbo Qi, Jianbo Du
BACKGROUND: Interleukin-1 alpha (IL-1α) plays an important role in tumorigenesis and angiogenesis of gastric cancer. The interleukin-1 receptor antagonist (IL-1RA) inhibits IL-1 selectively and specifically through IL-1R type I (IL-1RI). However, the underlying mechanism by which IL-1RA modulates the interactions of tumor cells and their micro-environment is poorly understood. We have evaluated the role of IL-1RA in the metastatic process as well as the mutual or reciprocal actions between gastric cancer cells and stromal cells...
January 17, 2018: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29343664/the-anti-inflammatory-action-of-maropitant-in-a-mouse-model-of-acute-pancreatitis
#3
Atsushi Tsukamoto, Minami Ohgoda, Nozomi Haruki, Masatoshi Hori, Tomo Inomata
The neurokinin 1 receptor (NK1R) plays an important role in the pathogenesis of acute pancreatitis (AP). Maropitant is an NK1R antagonist that is widely used as an antiemetic in dogs and cats. In the present study, we investigated the anti-inflammatory action of maropitant in a mouse model of AP. AP was induced in BALB/c mice by intraperitoneal administration of cerulein, and maropitant was administered subcutaneously at a dose of 8 mg/kg. We assessed the mRNA expression levels of NK1R and substance P (SP) in the pancreatic tissue via real-time reverse transcription polymerase chain reaction...
January 16, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29343288/changes-in-the-secretome-of-tri-dimensional-spheroid-cultured-human-mesenchymal-stem-cells-in-vitro-by-interleukin-1-priming
#4
Elena Redondo-Castro, Catriona J Cunningham, Jonjo Miller, Helena Brown, Stuart M Allan, Emmanuel Pinteaux
BACKGROUND: Mesenchymal stem cells (MSCs) are one of the most promising candidates for the treatment of major neurological disorders. Desirable therapeutic properties of MSCs include reparative and regenerative potential but, despite their proven safety, the efficacy of MSCs remains controversial. Therefore, it is essential to optimise culture protocols to enhance the therapeutic potential of the MSC secretome. Here we aimed to: assess the increase in secretion of cytokines that may induce repair, regeneration, or immunomodulation when cultured in three dimensions; study the effect of interleukin (IL)-1 priming on two- (2D) and three-dimensional (3D) cultures of MSC; and evaluate the potential use of the modified secretome using microglial-MSC co-cultures...
January 17, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29339698/association-of-interleukin-1-gene-cluster-polymorphisms-with-coronary-slow-flow-phenomenon
#5
Ferit Onur Mutluer, Dilek Ural, Barış Güngör, Osman Bolca, Tolga Aksu
OBJECTIVE: Coronary slow flow phenomenon (CSFP) is characterized by the decreased rate of contrast progression in epicardial coronary arteries in the absence of significant coronary stenosis. Mounting evidence has showed a significant association between inflammation and CSFP severity. This study aimed to evaluate possible associations between interleukin-1 receptor antagonist (IL-1ra) gene variable number tandem repeat (VNTR), IL-1ß -511 single nucleotide (SNP), and IL-1ß+3954 SNP mutations with CSFP...
January 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29338785/benefits-of-vce-003-2-a-cannabigerol-quinone-derivative-against-inflammation-driven-neuronal-deterioration-in-experimental-parkinson-s-disease-possible-involvement-of-different-binding-sites-at-the-ppar%C3%AE-receptor
#6
Concepción García, María Gómez-Cañas, Sonia Burgaz, Belén Palomares, Yolanda Gómez-Gálvez, Cristina Palomo-Garo, Sara Campo, Joel Ferrer-Hernández, Carolina Pavicic, Carmen Navarrete, M Luz Bellido, Moisés García-Arencibia, M Ruth Pazos, Eduardo Muñoz, Javier Fernández-Ruiz
BACKGROUND: Neuroprotection with cannabinoids in Parkinson's disease (PD) has been afforded predominantly with antioxidant or anti-inflammatory cannabinoids. In the present study, we investigated the anti-inflammatory and neuroprotective properties of VCE-003.2, a quinone derivative of the non-psychotrophic phytocannabinoid cannabigerol (CBG), which may derive its activity at the peroxisome proliferator-activated receptor-γ (PPARγ). The compound is also an antioxidant. METHODS: We evaluated VCE-003...
January 16, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29334965/a-novel-il-1ra-pep-fusion-protein-alleviates-blood-brain-barrier-disruption-after-ischemia-reperfusion-in-male-rats
#7
Dong-Dong Zhang, Chen Jin, Ya-Tao Zhang, Xiang-Dong Gan, Min-Ji Zou, Yuan-Yuan Wang, Wen-Liang Fu, Tao Xu, Wei-Wei Xing, Wen-Ron Xia, Dong-Gang Xu
BACKGROUND: Current options to treat clinical relapse in inflammatory central nervous system (CNS) conditions such as cerebral ischemia-reperfusion injury are limited, and agents that are more effective are required. Disruption of the blood-brain barrier is an early feature of lesion formation that correlates with clinical exacerbation and facilitates the entry of inflammatory medium and inflammatory cells. Interleukin-1 receptor antagonist (IL-1RA) is a naturally occurring anti-inflammatory antagonist of the interleukin-1 (IL-1) family...
January 15, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29333402/interleukin-1b-il-1b-31-and-il-1b-511-and-interleukin-1-receptor-antagonist-il-1ra-gene-polymorphisms-in-primary-immune-thrombocytopenia
#8
Deependra Kumar Yadav, Anil Kumar Tripathi, Divya Gupta, Saurabh Shukla, Aloukick Kumar Singh, Ashutosh Kumar, Jyotsna Agarwal, K N Prasad
Background: Immune thrombocytopenia (ITP) is an immune-mediated disease caused by autoantibodies against platelets membrane glycoproteins GPIIb/IIIa and GPIb/IX. The etiology of ITP remains unclear. This study evaluated the association of polymorphisms in interleukin (IL)-1B-31, IL-1B-511, and IL-1Ra with ITP. Methods: Genotyping of IL-1B-31, IL-1B-511, and IL-1Ra was performed in 118 ITP patients and 100 controls by polymerase chain reaction restriction fragment length polymorphism and detection of variable number tandem repeats...
December 2017: Blood Research
https://www.readbyqxmd.com/read/29318481/transient-receptor-potential-ankyrin-1-trpa1-mediates-lipopolysaccharide-lps-induced-inflammatory-responses-in-primary-human-osteoarthritic-fibroblast-like-synoviocytes
#9
Songjiang Yin, Peimin Wang, Runlin Xing, Linrui Zhao, Xiaochen Li, Li Zhang, Yancheng Xiao
Transient receptor potential ankyrin 1 (TRPA1) is a membrane-associated cation channel, widely expressed in neuronal and non-neuronal cells. Recently, emerging evidences suggested the crucial role of TRPA1 in the disease progression of osteoarthritis (OA). Therefore, we aimed to investigate whether TRPA1 mediate lipopolysaccharide (LPS)-induced inflammatory responses in primary human OA fibroblast-like synoviocytes (OA-FLS). The expression of TRPA1 in LPS-treated OA-FLS was assessed by polymerase chain reaction (PCR) and western blot (WB), and the functionality of TRPA1 channel by Ca2+ influx measurements...
January 9, 2018: Inflammation
https://www.readbyqxmd.com/read/29311241/cessation-from-smoking-improves-innate-host-defense-and-clearance-of-experimentally-inoculated-nasal-s-aureus
#10
Amy L Cole, Mary Schmidt-Owens, Ashley C Beavis, Christine F Chong, Patrick M Tarwater, James Schaus, Michael G Deichen, Alexander M Cole
Staphylococcus aureus (SA) nasal carriage is transient in most humans and usually benign, but dissemination of SA to extranasal sites causes the majority of clinical infections, and SA is a major cause of serious infections in the U.S. A better understanding of innate nasal decolonization mechanisms is urgently needed, as are relevant models for studying SA clearance. Here, we screened a population of healthy smokers for nasal SA carriage, and compared participants' abilities to clear experimentally applied nasal SA before and after completion of a smoking cessation program...
January 8, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29310426/il-1-receptor-antagonist-reduced-chemical-induced-keratinocyte-apoptosis-through-antagonism-to-il-1%C3%AE-il-1%C3%AE
#11
Hyejin Lee, Kyung Ah Cheong, Ji-Young Kim, Nan-Hyung Kim, Minsoo Noh, Ai-Young Lee
Extracellular interleukin 1 alpha (IL-1α) released from keratinocytes is one of the endpoints for in vitro assessments of skin irritancy. Although cells dying via primary skin irritation undergo apoptosis as well as necrosis, IL-1α is not released in apoptotic cells. On the other hand, active secretion has been identified in interleukin-1 receptor antagonist (IL-1ra), which was discovered to be a common, upregulated, differentially-expressed gene in a microarray analysis performed with keratinocytes treated using cytotoxic doses of chemicals...
January 9, 2018: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/29303154/a-novel-and-less-invasive-technique-to-assess-cytokine-profile-of-vitreous-in-patients-of-diabetic-macular-oedema
#12
G Srividya, M Jain, K Mahalakshmi, S Gayathri, R Raman, N Angayarkanni
PurposeA pilot study to validate the collection of vitreous reflux (VR) after intravitreal injection using Schirmers tear strips was carried out. We assessed its efficiency for proteomics studies by estimating the differential expression of 27 cytokines using multiplexed bead array in diabetic macular oedema and proliferative diabetic retinopathy. To set, validate and assess the efficacy of Schirmer tear strips for collecting VR in patients undergoing intravitreal injections for diabetic macular oedema (DME)...
January 5, 2018: Eye
https://www.readbyqxmd.com/read/29286117/angiotensin-1-7-ameliorates-caerulein-induced-inflammation-in-pancreatic-acinar-cells-by-downregulating-toll-like-receptor-4-nuclear-factor-%C3%AE%C2%BAb-expression
#13
Yan Wang, Guoxing Wang, Lijian Cui, Ruixia Liu, Hongli Xiao, Chenghong Yin
The present study aimed to investigate the effects of angiotensin (Ang) 1-7 on caerulein (CAE)-stimulated nuclear factor (NF)‑κB, Toll‑like receptor (TLR4) and cytokine expression using pancreatic acinar AR42J cells. AR42J cells were treated with 10 nmol/l CAE for various durations. In addition, cells were pretreated with various concentrations of Ang 1‑7 or A779, a specific antagonist of Ang 1‑7, and were stimulated with CAE for 12 h. Control cells were treated with vehicle (F‑12K complete medium with 2% fetal bovine serum, 10 U/ml penicillin and 100 mg/ml streptomycin) alone...
December 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29284500/cytokine-signatures-in-chronic-fatigue-syndrome-patients-a-case-control-study-and-the-effect-of-anakinra-treatment
#14
Megan E Roerink, Hans Knoop, Ewald M Bronkhorst, Henk A Mouthaan, Luuk J A C Hawinkels, Leo A B Joosten, Jos W M van der Meer
BACKGROUND: Cytokine disturbances have been suggested to be associated with the Chronic Fatigue Syndrome/Myalgic encephalomyelitis (CFS/ME) for decades. METHODS: Fifty female CFS patients were included in a study on the effect of the interleukin-1-receptor antagonist anakinra or placebo during 4 weeks. EDTA plasma was collected from patients before and directly after treatment. At baseline, plasma samples were collected at the same time from 48 healthy, age-matched female neighborhood controls...
December 29, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29281611/association-of-of-il-1-receptor-antagonist-il-1rn-and-interleukin-1%C3%AE-genes-il-1%C3%AE-polymorphisms-with-recurrent-pregnancy-loss-in-iranian-azeri-women
#15
Seyyed Ali Rahmani, Zeynab Paknejad, Masoumeh Mohammadkhanlou, Marina Daneshparvar
Objective One of the most important problems in human reproduction is recurrent pregnancy loss (RPL). RPL is defined as three or more consecutive abortions in the first trimester of pregnancy. The association between the polymorphisms in the immunological factors and RPL was investigated. The aim of our study was to determine the association of interleukin receptor antagonist (IL-IRN) and interleukin-1β (IL-1β) polymorphisms with RPL in Iranian Azeri women. Materials and methods The study participants consisted of 100 women with RPL of Iranian Azeri origin...
December 27, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/29278210/biologics-in-inflammatory-and-immunomediated-arthritis
#16
Michele Maria Luchetti, Devis Benfaremo, Armando Gabrielli
BACKGROUND: Biologic drugs, introduced in clinical practice almost twenty years ago, represent nowadays a prominent treatment option in patients with chronic inflammatory arthritis, such as Rheumatoid Arthritis, Psoriatic Arthritis and Spondyloarthritis, that include ankylosing spondylitis and non-radiographic axial spondyloarthritis. METHODS: Several compounds targeting different pathways have been marketed and approved for the treatment of inflammatory arthritis, with a significant impact on the clinical outcomes and the natural history of the diseases...
December 26, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29260347/apolipoprotein-m-protects-against-lipopolysaccharide-induced-acute-lung-injury-via-sphingosine-1-phosphate-signaling
#17
Bin Zhu, Guang-Hua Luo, Yue-Hua Feng, Miao-Mei Yu, Jun Zhang, Jiang Wei, Chun Yang, Ning Xu, Xiao-Ying Zhang
It had been demonstrated that apolipoprotein M (apoM) is an important carrier of sphingosine-1-phosphate (S1P) in blood, and the S1P has critical roles in the pathogenesis of sepsis-induced acute lung injury (ALI). In the present study, we investigated whether apoM has beneficial effects in a mouse model after lipopolysaccharide (LPS)-induced ALI. Forty-eight mice were divided into two groups: male C57BL/6 wild-type (apoM+/+) group (n = 24) and apoM gene-deficient (apoM-/-) group (n = 24) and then randomly subdivided into four subgroups (n = 6 each) according to different intraperitoneal (i...
December 19, 2017: Inflammation
https://www.readbyqxmd.com/read/29249425/evidence-for-functional-par-4-thrombin-receptor-expression-in-cardiac-fibroblasts-and-its-regulation-by-high-glucose-par-4-in-cardiac-fibroblasts
#18
Sonja Kleeschulte, Johann Jerrentrup, Daniel Gorski, Joachim Schmitt, Anke C Fender
BACKGROUND: Thrombin promotes cardiac fibroblast proliferation and fibrosis via protease-activated receptor (PAR-1). PAR-4 is reportedly absent in cardiac fibroblasts. In smooth muscle cells, PAR-4 expression is also low but increases upon hyperglycemia and contributes to vascular remodelling in diabetic mice. We examined if PAR-4 is a glucose-responsive gene with remodelling-related functions in cardiac fibroblasts. METHODS AND RESULTS: Cardiac PAR-4 increased in mice with streptozotocin- or diabetogenic diet (DD)-induced diabetes...
February 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29247988/interleukin-18-biological-properties-and-role-in-disease-pathogenesis
#19
REVIEW
Gilles Kaplanski
Initially described as an interferon (IFN)γ-inducing factor, interleukin (IL)-18 is indeed involved in Th1 and NK cell activation, but also in Th2, IL-17-producing γδ T cells and macrophage activation. IL-18, a member of the IL-1 family, is similar to IL-1β for being processed by caspase 1 to an 18 kDa-biologically active mature form. IL-18 binds to its specific receptor (IL-18Rα, also known as IL-1R7) forming a low affinity ligand chain. This is followed by recruitment of the IL-18Rβ chain. IL-18 then uses the same signaling pathway as IL-1 to activate NF-kB and induce inflammatory mediators such as adhesion molecules, chemokines and Fas ligand...
January 2018: Immunological Reviews
https://www.readbyqxmd.com/read/29235095/immune-cells-regulate-vegf-signaling-via-release-of-vegf-and-antagonistic-soluble-vegf-receptor-1
#20
Timm Hoeres, Martin Wilhelm, Manfred Smetak, Elisabeth Holzmann, Gundula Schulze-Tanzil, Josef Birkmann
Vascular endothelial growth factor (VEGF) is an important regulator of physiological and pathological angiogenesis. Beside malignant and stromal cells, local immune cells shape VEGF signaling in the tumor microenvironment. Aminobisphosphonates like zoledronic acid (Zol) are drugs known to inhibit osteoclast activity and bone resorption, but also have immunomodulatory and anti-tumor effects. These properties have previously been linked to the downregulation of VEGF and interference with tumor neo-angiogenesis...
December 13, 2017: Clinical and Experimental Immunology
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