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https://www.readbyqxmd.com/read/28922563/role-of-il-18-in-atopic-asthma-is-determined-by-balance-of-il-18-il-18bp-il-18r
#1
Huiyun Zhang, Junling Wang, Ling Wang, Hua Xie, Liping Chen, Shaoheng He
It is recognized that IL-18 is related to development of asthma, but role of IL-18 in asthma remains controversial and confusing. This is largely due to lack of information on expression of IL-18 binding protein (BP) and IL-18 receptor (R) in asthma. In this study, we found that plasma levels of IL-18 and IL-18BP were elevated in asthma. The ratio between plasma concentrations of IL-18 and IL-18BP was 1:12.8 in asthma patients. We demonstrated that 13-fold more monocytes, 17.5-fold more neutrophils and 4.1-fold more B cells express IL-18BP than IL-18 in asthmatic blood, suggesting that there is excessive amount of IL-18BP to abolish actions of IL-18 in asthma...
September 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28921468/inflammasomes-in-the-gut-mucosal-homeostasis
#2
Xiaomin Yao, Guangxun Meng
Inflammasomes are critical checkpoints in inflammation. The activation of inflammasome can cause a series of inflammatory responses including maturation of interleukin (IL)-1β and IL-18 and a specialized form of cell death called pyroptosis. Since its identification in the early 2000s, inflammasomes have been implicated to play multifaceted roles in varied pathological and physiological conditions, especially in the mucosal compartments including the gut. Maintaining gut mucosal homeostasis has always been a remarkable challenge for the host due to both the vast mucosal surface that is exposed to the outside and the enormous amount of local microbiota...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28918754/macrophage-activation-like-syndrome-an-immunological-entity-associated-with-rapid-progression-to-death-in-sepsis
#3
Evdoxia Kyriazopoulou, Konstantinos Leventogiannis, Anna Norrby-Teglund, Georgios Dimopoulos, Aikaterini Pantazi, Stylianos E Orfanos, Nikoletta Rovina, Iraklis Tsangaris, Theologia Gkavogianni, Elektra Botsa, Eleftheria Chassiou, Anastasia Kotanidou, Christina Kontouli, Panagiotis Chaloulis, Dimitrios Velissaris, Athina Savva, Jonas-Sundén Cullberg, Karolina Akinosoglou, Charalambos Gogos, Apostolos Armaganidis, Evangelos J Giamarellos-Bourboulis
BACKGROUND: A subanalysis of a randomized clinical trial indicated sepsis survival benefit from interleukin (IL)-1 blockade in patients with features of the macrophage activation-like syndrome (MALS). This study aimed to investigate the frequency of MALS and to develop a biomarker of diagnosis and prognosis. METHODS: Patients with infections and systemic inflammatory response syndrome were assigned to one test cohort (n = 3417) and a validation cohort (n = 1704)...
September 18, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28918467/anisodamine-inhibits-endoplasmic-reticulum-stress-associated-txnip-nlrp3-inflammasome-activation-in-rhabdomyolysis-induced-acute-kidney-injury
#4
Xiaopeng Yuan, Yitao Zheng, Chuanbao Chen, Changxi Wang
Anisodamine protects against free radical-induced cellular damage. This study aimed to investigate the protective effect of anisodamine on rhabdomyolysis-induced acute kidney injury (RIAKI). C57BL/6 J mice, TXNIP(-/-) and NLRP3 (-/-) (both were C57BL/6 J background) mice were used to construct RIAKI model. Anisodamine administration was performed on RIAKI mice only. Mice were divided into control, TXNIP-KD (knock down), LNPR3-KD, and anisodamine group (n = 15 in each group). The renal injury, renal function, renal tubular cells apoptosis and expression of Caspase-1, ASC, endoplasmic reticulum (ER) stress markers IRE-1α, CHOP, and ATF4, and interleukin (IL-1α, IL-1β, and IL-18) were detected...
September 16, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28915449/increased-expression-of-nlrp3-inflammasome-in-placentas-from-pregnant-women-with-severe-preeclampsia
#5
Ingrid C Weel, Mariana Romão-Veiga, Mariana L Matias, Eduardo G Fioratti, Jose C Peraçoli, Vera T Borges, João P Araujo, Maria T Peraçoli
Preeclampsia is a pregnancy disorder characterized by imbalance between pro- and anti-inflammatory cytokines associated with high plasma levels of uric acid and Interleukin-1 beta (IL-1β). The inflammasome is a protein complex that mediates innate immune responses via caspase-1 activation promoting secretion of IL-1β and IL-18 in their active forms, and also release of the high-mobility group box 1 protein (HMGB1). As the placenta seems to play an important role in the pathogenesis of PE, the present study investigated the expression of genes and proteins related to the inflammasome in placentas from pregnant women with severe preeclampsia...
September 6, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28915241/the-relative-contribution-of-dna-methylation-and-genetic-variants-on-protein-biomarkers-for-human-diseases
#6
Muhammad Ahsan, Weronica E Ek, Mathias Rask-Andersen, Torgny Karlsson, Allan Lind-Thomsen, Stefan Enroth, Ulf Gyllensten, Åsa Johansson
Associations between epigenetic alterations and disease status have been identified for many diseases. However, there is no strong evidence that epigenetic alterations are directly causal for disease pathogenesis. In this study, we combined SNP and DNA methylation data with measurements of protein biomarkers for cancer, inflammation or cardiovascular disease, to investigate the relative contribution of genetic and epigenetic variation on biomarker levels. A total of 121 protein biomarkers were measured and analyzed in relation to DNA methylation at 470,000 genomic positions and to over 10 million SNPs...
September 15, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28905319/pi3k-inhibition-protects-mice-from-nafld-by-down-regulating-cmklr1-and-nlrp3-in-kupffer-cells
#7
Wenfeng Zhang, Yan Liu, Mingbing Wu, Xiwen Zhu, Tao Wang, Kun He, Peizhi Li, Xiaoling Wu
Inflammation induced by high-fat diet (HFD) is of critical importance in the development of hepatic steatosis. The role of chemerin in the progress of nonalcoholic fatty liver disease (NAFLD) remains controversial. Here, we have evaluated the effects and mechanism of chemerin on insulin sensitivity and inflammation. An inhibitor (wortmannin) and agonist (insulin-like growth factor 1 (IGF-1) of phosphatidyl inositol 3-kinase (PI3K) were applied to Kupffer cells (KCs) after treatment with a concentration gradient of chemerin in vitro...
September 13, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28904432/impact-of-steroids-on-the-inflammatory-response-after-ischemic-acute-kidney-injury-in-rats
#8
J Fontana, A Vogt, A Hohenstein, U Vettermann, E Doroshenko, E Lammer, B A Yard, S Hoeger
Inflammation plays a crucial role in acute kidney injury (AKI). The current study was designed to analyze the influence of prednisolone treatment on the inflammatory reaction during the first 96 h after AKI induction in a rat model. AKI was induced by unilateral clipping of the renal vessels. The treatment group received prednisolone 5 mg/kg s.c. daily. Infiltration rates of macrophages, leukocytes, and T-cells (24, 96 h) as well as plasma concentrations of the inflammatory markers intercellular adhesion molecule, interleukin-1 beta (IL-1β), IL-18, IL-6, and tumor necrosis factor-alpha (0, 6, 24, 96 h) were determined by fluorescence-activated cell sorting (FACS) analysis only...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28904191/the-dose-of-retroviral-infection-determines-the-induction-of-anti-viral-nk-cell-responses
#9
Elisabeth Littwitz-Salomon, Simone Schimmer, Ulf Dittmer
Natural killer (NK) cells are part of the innate immune system and recognize virus-infected cells as well as tumor cells. Conflicting data about the beneficial or even detrimental role of NK cells in different infectious diseases were described. While the type of pathogen strongly influences NK cell functionality, less is known about how the infection dose influences the quality of a NK cell response against retroviruses. Here we used the well-established Friend retrovirus (FV) mouse model to investigate the impact of virus dose on the induction of anti-viral NK cell functions...
September 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28903766/fluoxetine-enhanced-autophagy-ameliorates-early-brain-injury-via-inhibition-of-nlrp3-inflammasome-activation-following-subrachnoid-hemorrhage-in-rats
#10
Jian-Ru Li, Hang-Zhe Xu, Sheng Nie, Yu-Cong Peng, Lin-Feng Fan, Zhi-Jiang Wang, Cheng Wu, Feng Yan, Jing-Yin Chen, Chi Gu, Chun Wang, Jing-Sen Chen, Lin Wang, Gao Chen
BACKGROUND: The NLRP3 inflammasome is a multiprotein complex that regulates the innate immune inflammatory response by activating caspase-1 and subsequent IL-1β and IL-18. Fluoxetine has been shown to have the anti-inflammatory properties in many disease models. However, the effects and mechanisms of these effects of fluoxetine in early brain injury after subarachnoid hemorrhage (SAH) have not been defined. METHODS: The SAH model was induced by an endovascular perforation in adult male Sprague-Dawley (SD) rats weighing 300-320 g...
September 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28903062/inflammatory-dietary-patterns-and-depressive-symptoms-in-italian-older-adults
#11
Esther Vermeulen, Ingeborg A Brouwer, Karien Stronks, Stefania Bandinelli, Luigi Ferrucci, Marjolein Visser, Mary Nicolaou
BACKGROUND: Older adults are more susceptible to higher inflammatory levels and depression. Moreover, diet may influence inflammation as well as depression but no previous study examined whether inflammatory dietary patterns are related to depression in an older population. To investigate the longitudinal association between inflammatory dietary patterns (using reduced rank regression (RRR)) and depressive symptoms in a population sample of Italian older adults. METHODS: We included 827 participants (aged≥65years) at baseline in 1998...
September 10, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28901469/glycogen-synthase-kinase%C3%A2-3%C3%AE-inhibitor-reduces-lps%C3%A2-induced-acute-lung-injury-in-mice
#12
Qi Ding, Gaoqin Liu, Yuanyuan Zeng, Jianjie Zhu, Zeyi Liu, Junhong Jiang, Jianan Huang
The aim of the present study was to examine the role of Wnt signaling in lipopolysaccharide (LPS)‑induced acute respiratory distress syndrome (ARDS). ARDS was induced by LPS and compared in mice treated with either glycogen synthase kinase‑3β inhibitor (GSKI) or PBS. The protein expression levels of interleukin (IL)‑6, IL‑8, tumor necrosis factor (TNF)‑α, IL‑17, IL‑18 and IL‑1β in the bronchoalveolar lavage fluid (BALF) were examined using murine cytokine‑specific enzyme‑linked immunosorbent assays...
September 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28901415/effect-of-continuous-positive-airway-pressure-therapy-on-inflammatory-cytokines-and-atherosclerosis-in-patients-with-obstructive-sleep-apnea-syndrome
#13
Fa Jin, Jiannan Liu, Xiuwei Zhang, Wei Cai, Yuqiong Zhang, Wei Zhang, Jian Yang, Gan Lu, Xilong Zhang
Obstructive sleep apnea syndrome (OSAS) is known to be a risk factor for atherosclerosis (AS), derived from a series of chronic inflammatory reactions caused by hypoxia. However, the association between chronic inflammation and high blood pressure caused by hypoxia remains to be fully elucidated. The aim of the present study was to investigate the effect of continuous positive airway pressure (CPAP) therapy on inflammatory cytokines and AS. A total of 100 patients with OSAS and 50 healthy control subjects were enrolled...
August 30, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900426/interleukin-il-18-binding-protein-deficiency-disrupts-natural-killer-cell-maturation-and-diminishes-circulating-il-18
#14
Robert Z Harms, Austin J Creer, Kristina M Lorenzo-Arteaga, Katie R Ostlund, Nora E Sarvetnick
The cytokine interleukin (IL)-18 is a crucial amplifier of natural killer (NK) cell function. IL-18 signaling is regulated by the inhibitory effects of IL-18 binding protein (IL-18BP). Using mice deficient in IL-18BP (IL-18BPKO), we investigated the impact of mismanaged IL-18 signaling on NK cells. We found an overall reduced abundance of splenic NK cells in the absence of IL-18BP. Closer examination of NK cell subsets in spleen and bone marrow using CD27 and CD11b expression revealed that immature NK cells were increased in abundance, while the mature population of NK cells was reduced...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28900389/cerebellar-atrophy-and-changes-in-cytokines-associated-with-the-cacna1a-r583q-mutation-in-a-russian-familial-hemiplegic-migraine-type-1-family
#15
Svetlana F Khaiboullina, Elena G Mendelevich, Leyla H Shigapova, Elena Shagimardanova, Guzel Gazizova, Alexey Nikitin, Ekaterina Martynova, Yuriy N Davidyuk, Enver I Bogdanov, Oleg Gusev, Arn M J M van den Maagdenberg, Rashid A Giniatullin, Albert A Rizvanov
Background: Immune mechanisms recently emerged as important contributors to migraine pathology with cytokines affecting neuronal excitation. Therefore, elucidating the profile of cytokines activated in various forms of migraine, including those with a known genetic cause, can help in diagnostic and therapeutic approaches. Methods: Here we (i) performed exome sequencing to identify the causal gene mutation and (ii) measured, using Bio-Plex technology, 22 cytokines in serum of patients with familial migraine (two with hemiplegic migraine and two with migraine with aura) from a Russian family that ethnically belongs to the Tatar population...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28895072/role-of-the-inflammasome-related-cytokines-il-1-and-il-18-during-infection-with-murine-coronavirus
#16
Zachary B Zalinger, Ruth Elliott, Susan R Weiss
The inflammasome, a cytosolic protein complex that mediates the processing and secretion of pro-inflammatory cytokines, is one of the first responders during viral infection. The cytokines secreted following inflammasome activation, which include IL-1 and IL-18, regulate cells of both the innate and adaptive immune system, guiding the subsequent immune responses. In this study, we used murine coronavirus, mouse hepatitis virus (MHV), infection of the central nervous system and liver to assess of the role of the inflammasome and its related cytokines on pathogenesis and host defense during viral infection...
September 11, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28894050/compounds-of-psoriasis-with-obesity-and-overweight
#17
Agnieszka Owczarczyk-Saczonek, Waldemar Placek
Many epidemiological studies have confirmed the relationship of obesity and psoriasis, and it is believed that obesity is an independent risk factor for its development and is associated with a worse prognosis. Furthermore, the reduction of body weight, using low-calorie diet combined with exercise, reduces the severity of psoriasis.Visceral adipose tissue is the largest endocrine organ, producing proinflammatory cytokines (TNF-α, IL-6, IL-17) and adipokines (adiponectin, omentin, chemerin). They participate in the development of dyslipidemia, insulin resistance, diabetes, and consequently of the cardiovascular diseases...
August 24, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28893955/nkg2d-signaling-between-human-nk-cells-enhances-tace-mediated-tnf-%C3%AE-release
#18
Neekun Sharma, Camille V Trinidad, Andrew P Trembath, Mary A Markiewicz
NK group 2 member D (NKG2D) is a strong NK cell-activating receptor, with engagement by ligands triggering granule release and cytokine production. The function of NKG2D signaling in NK cells has largely been studied in the context of engagement of the receptor by ligands expressed on the surface of target cells. We report that upon activation with IL-12, IL-15, and IL-18 human NK cells express NKG2D ligands of the UL16 binding protein family on the cell surface. NKG2D-ligand interaction between cytokine-stimulated NK cells increases the activity of the metalloprotease TNF-α-converting enzyme...
September 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28888980/arctigenin-attenuates-ischemic-stroke-via-sirt1-dependent-inhibition-of-nlrp3-inflammasome
#19
Shimeng Zhang, Liangjun Jiang, Fengyuan Che, Yucheng Lu, Zhongxiang Xie, Hao Wang
Arctigenin (ARC), a phenylpropanoid dibenzylbutyrolactone lignan derived from Arctium lappa L, has been reported to protect against cerebral ischemia injury in rats, but the underlying mechanism is unclear. In this study, we investigated whether ARC ameliorated ischemic stroke by inhibiting NLRP3 inflammasome-derived neuroinflammation and whether SIRT1 signaling was involved in this process. ARC (20 mg/kg) or vehicle were intraperitoneally injected to Sprague-Dawley rats for 3 days before middle cerebral artery occlusion (MCAO) surgery performed...
September 6, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28888033/modulation-of-%C3%AE-%C3%AE-t-cell-activation-by-neutrophil-elastase
#20
Nadia Yasmín Towstyka, Carolina Maiumi Shiromizu, Irene Keitelman, Florencia Sabbione, Gabriela Verónica Salamone, Jorge Raúl Geffner, Analía Silvina Trevani, Carolina Cristina Jancic
γδ T cells are non-conventional, innate-like T cells, characterized by a restricted TCR repertoire. They participate in protective immunity response against extracellular and intracellular pathogens, tumor surveillance, modulation of innate and adaptive immune responses, tissue healing, epithelial cell maintenance, and regulation of physiological organ function. In this study, we investigated the role of neutrophils during the activation of human blood γδ T cells through CD3 molecules. We found that the up-regulation of CD69 expression, and the production of IFN-γ and TNF-α induced by anti-CD3 antibodies were potentiated by neutrophils...
September 9, 2017: Immunology
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