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Cytokine signal transduction

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https://www.readbyqxmd.com/read/27919524/demystifying-the-cytokine-network-mathematical-models-point-the-way
#1
REVIEW
Penelope A Morel, Robin E C Lee, James R Faeder
Cytokines provide the means by which immune cells communicate with each other and with parenchymal cells. There are over one hundred cytokines and many exist in families that share receptor components and signal transduction pathways, creating complex networks. Reductionist approaches to understanding the role of specific cytokines, through the use of gene-targeted mice, have revealed further complexity in the form of redundancy and pleiotropy in cytokine function. Creating an understanding of the complex interactions between cytokines and their target cells is challenging experimentally...
December 2, 2016: Cytokine
https://www.readbyqxmd.com/read/27903507/hydroxychloroquine-inhibits-proinflammatory-signalling-pathways-by-targeting-endosomal-nadph-oxidase
#2
Nadine Müller-Calleja, Davit Manukyan, Antje Canisius, Dennis Strand, Karl J Lackner
OBJECTIVES: Hydroxychloroquine (HCQ) has been used for decades to treat patients with rheumatic diseases, for example, systemic lupus erythematosus (SLE), rheumatoid arthritis or the antiphospholipid syndrome (APS). We hypothesise that HCQ might target endosomal NADPH oxidase (NOX), which is involved in the signal transduction of cytokines as well as antiphospholipid antibodies (aPL). METHODS: For in vitro experiments, monocytic cells were stimulated with tumour necrosis factor α (TNFα), interleukin-1β (IL-1β) or a human monoclonal aPL and the activity of NOX was determined by flow cytometry...
November 30, 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/27897122/bioinformatics-analysis-of-chicken-mirnas-associated-with-monocyte-to-macrophage-differentiation-and-subsequent-ifng-stimulated-activation
#3
Kristopher Jl Irizarry, Adam Chan, Derek Kettle, Steven Kezian, Dominic Ma, Louis Palacios, Qingshun Li, Calvin L Keeler, Yvonne Drechsler
The goal of this project was to characterize the molecular and cellular roles of various gene targets regulated by 8 miRNAs in differentiating macrophages. Among a number of miRNAs that are found to be expressed in avian macrophages, we focused on eight specific miRNAs (miR-1618, miR-1586, miR-1633, miR-1627, miR-1646, miR-1649, miR-1610, miR-1647) associated with macrophage activation through Wnt signaling, ubiquitination, PPAR mediated macrophage function, vesicle mediated cytokine trafficking, and WD40 domain proteins in macrophage differentiation...
November 29, 2016: MicroRNA
https://www.readbyqxmd.com/read/27895105/robot-assisted-mechanical-therapy-attenuates-stroke-induced-limb-skeletal-muscle-injury
#4
Chandan K Sen, Savita Khanna, Hallie Harris, Richard Stewart, Maria Balch, Mallory Heigel, Seth Teplitsky, Surya Gnyawali, Cameron Rink
The efficacy and optimization of poststroke physical therapy paradigms is challenged in part by a lack of objective tools available to researchers for systematic preclinical testing. This work represents a maiden effort to develop a robot-assisted mechanical therapy (RAMT) device to objectively address the significance of mechanical physiotherapy on poststroke outcomes. Wistar rats were subjected to right hemisphere middle-cerebral artery occlusion and reperfusion. After 24 h, rats were split into control (RAMT(-)) or RAMT(+) groups (30 min daily RAMT over the stroke-affected gastrocnemius) and were followed up to poststroke d 14...
November 28, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27889435/role-of-hmgb1-translocation-to-neuronal-nucleus-in-rat-model-with-septic-brain-injury
#5
Yafei Li, Xihong Li, Yi Qu, Jichong Huang, Tingting Zhu, Fengyan Zhao, Shiping Li, Dezhi Mu
High-mobility Group Box-1 (HMGB1) is a central late proinflammatory cytokine that triggers the inflammatory response during sepsis. However, whether HMGB1 is involved in the pathogenesis of septic brain damage is unknown. In this study, we investigated the role of HMGB1 in regulating brain injury in a rat model of sepsis. Wistar rats were subjected to cecal ligation and puncture (CLP) to induce septic brain injury. Hematoxylin and eosin staining was used to detect pathological changes in the cortex. The cellular localization of HMGB1 was determined using immunostaining...
November 23, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27888386/innate-recognition-of-microbial-derived-signals-in-immunity-and-inflammation
#6
REVIEW
Yue Zhang, Chunli Liang
Microbes generate a vast array of different types of conserved structural components called pathogen-associated molecular patterns (PAMPs), which can be recognized by cells of the innate immune system. This recognition of "nonself" signatures occurs through host pattern recognition receptors (PRRs), suggesting that microbial-derived signals are good targets for innate immunity to discriminate between self- and nonself. Such PAMP-PRR interactions trigger multiple but distinct downstream signaling cascades, subsequently leading to production of proinflammatory cytokines and interferons that tailor immune responses to particular microbes...
November 23, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27885718/purinergic-receptors-new-targets-for-the-treatment-of-gout-and-fibrosis
#7
REVIEW
Thomas Gicquel, Brendan Le Daré, Elisabeth Boichot, Vincent Lagente
Adenosine triphosphate is involved in many metabolic reactions, but it has also a role as a cellular danger signal transmitted through purinergic receptors (PRs). Indeed, ATP can bind to PRs which are found in the membrane of many cell types, although the relative proportions of the receptor subtypes differ. PRs are classified according to genetic and pharmacological criteria and especially their affinities for agonists and their transduction mechanism (i.e. as metabotropic P2YRs or ionotropic P2XRs). Extracellular ATP release by activated or necrotic cells may activate various PRs and especially P2X7R, the best-characterized PR, on immune cells...
November 25, 2016: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/27881655/porcine-reproductive-and-respiratory-syndrome-virus-nsp1%C3%AE-inhibits-nf-%C3%AE%C2%BAb-activation-by-targeting-linear-ubiquitin-chain-assembly-complex-lubac
#8
Huiyuan Jing, Liurong Fang, Zhen Ding, Dang Wang, Wenqi Hao, Li Gao, Wenting Ke, Huanchun Chen, Shaobo Xiao
: Linear ubiquitination, a newly discovered posttranslational modification, is catalyzed by the linear ubiquitin chain assembly complex (LUBAC), which is composed of three subunits: one catalytic subunit HOIP and two accessory molecules, HOIL-1L and SHARPIN. Accumulating evidence suggests that linear ubiquitination plays a crucial role in innate immune signaling and especially in the activation of the NF-κB pathway by conjugating linear polyubiquitin chains to NF-κB essential modulator (NEMO, also called IKKγ), the regulatory subunit of the IKK complex...
November 23, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27879679/hydrostatin-tl1-an-anti-inflammatory-active-peptide-from-the-venom-gland-of-hydrophis-cyanocinctus-in-the-south-china-sea
#9
Ningyuan Wang, Yan Huang, An Li, Hailong Jiang, Jie Wang, Jianzhong Li, Lei Qiu, Ka Li, Yiming Lu
Tumor necrosis factor (TNF)-α is a pleiotropic cytokine with intense pro-inflammatory and immunomodulatory properties, and anti-TNF-α biologics are effective therapies for various inflammatory diseases such as inflammatory bowel disease (IBD) and sepsis. Snake venom, as a traditional Chinese medicine, has been used in the treatment of inflammatory diseases in China for centuries. In this research, we constructed a venom gland T7 phage display library of the sea snake Hydrophis cyanocinctus to screen bioactive compounds that antagonize TNF-α and identified a novel nine-amino-acid peptide, termed hydrostatin-TL1 (H-TL1)...
November 22, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27879258/nucleophosmin-anaplastic-lymphoma-kinase-npm-alk-the-ultimate-oncogene-and-therapeutic-target
#10
Michael T Werner, Chen Zhao, Qian Zhang, Mariusz A Wasik
Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase physiologically expressed by fetal neural cells. However, aberrantly expressed ALK is involved in the pathogenesis of diverse malignancies including distinct types of lymphoma, lung carcinoma, and neuroblastoma. The aberrant ALK expression in non-neural cells results from chromosomal translocations that create novel fusion proteins. These protein hybrids are comprised of the proximal part of a partner gene including its promoter region and the distal part of ALK including coding sequence for the entire kinase domain...
November 22, 2016: Blood
https://www.readbyqxmd.com/read/27878306/effects-of-interleukin-1-receptor-associated-kinase%C3%A2-1-rna-interference-in-dendritic-cells-on-inflammatory-cytokine-release-and-t-cell-proliferation
#11
Yan Gao, Xuxu Xu, Juan Feng, Ying Ma, Dongming Zheng, Yiming Meng, Fengping Shan
The present study aimed to reduce the expression of interleukin-1 receptor-associated kinase 1 (IRAK-1) in dendritic cells (DCs) by RNA interference (RNAi). Subsequently, its effects on the expression of costimulatory surface molecules, the release of inflammatory cytokines, and the proliferation of T cells during the activation process of DCs, were determined. RNAi was used to silence IRAK‑1 gene expression in DCs, followed by lipopolysaccharide stimulation. Flow cytometry was then used to detect the expression levels of DC surface molecules, including cluster of differentiation (CD)86, major histocompatibility complex class II and CD40...
November 15, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27877134/modulation-of-the-activities-of-neuronal-ion-channels-by-fatty-acid-derived-pro-resolvents
#12
REVIEW
Geunyeol Choi, Sun Wook Hwang
Progress of inflammation depends on the balance between two biological mechanisms: pro-inflammatory and pro-resolving processes. Many extracellular and intracellular molecular components including cytokines, growth factors, steroids, neurotransmitters, and lipidergic mediators and their receptors contribute to the two processes, generated from cellular participants during inflammation. Fatty acid-derived mediators are crucial in directing the inflammatory phase and orchestrating heterogeneous reactions of participants such as inflamed cells, innate immune cells, vascular components, innervating neurons, etc...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27876394/postnatal-irradiation-induced-hippocampal-neuropathology-cognitive-impairment-and-aging
#13
REVIEW
Feng Ru Tang, Weng Keong Loke, Boo Cheong Khoo
Irradiation of the brain in early human life may set abnormal developmental events into motion that last a lifetime, leading to a poor quality of life for affected individuals. While the effect of irradiation at different early developmental stages on the late human life has not been investigated systematically, animal experimental studies suggest that acute postnatal irradiation with ⩾0.1Gy may significantly reduce neurogenesis in the dentate gyrus and endotheliogenesis in cerebral vessels and induce cognitive impairment and aging...
November 19, 2016: Brain & Development
https://www.readbyqxmd.com/read/27864283/tumor-necrosis-factor-%C3%AE-a-key-contributor-to-intervertebral-disc-degeneration
#14
REVIEW
Cheng Wang, Xiaohua Yu, Yiguo Yan, Wei Yang, Shujun Zhang, Yongxiao Xiang, Jian Zhang, Wenjun Wang
Intervertebral disc (IVD) degeneration (IDD) is the most common cause leading to low back pain (LBP), which is a highly prevalent, costly, and crippling condition worldwide. Current treatments for IDD are limited to treat the symptoms and do not target the pathophysiology. Tumor necrosis factor-α (TNF-α) is one of the most potent pro-inflammatory cytokines and signals through its receptors TNFR1 and TNFR2. TNF-α is highly expressed in degenerative IVD tissues, and it is deeply involved in multiple pathological processes of disc degeneration, including matrix destruction, inflammatory responses, apoptosis, autophagy, and cell proliferation...
November 17, 2016: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/27863906/post-translational-control-of-intracellular-pathogen-sensing-pathways
#15
REVIEW
Cindy Chiang, Michaela U Gack
Mammalian cells recognize virus-derived nucleic acids using a defined set of intracellular sensors including the DNA sensors cyclic GMP-AMP (cGAMP) synthase (cGAS) and interferon gamma (IFNγ)-inducible protein 16 (IFI16) as well as viral RNA receptors of the retinoic acid-inducible gene I (RIG-I)-like receptor (RLR) family. Following innate immune recognition, these sensors launch an immune response that is characterized by the transcriptional upregulation of many antiviral molecules, including proinflammatory cytokines, chemokines, and IFN-stimulated genes...
November 15, 2016: Trends in Immunology
https://www.readbyqxmd.com/read/27861287/wnt-signaling-as-master-regulator-of-t-lymphocyte-responses-implications-for-transplant-therapy
#16
Frank J T Staal, Ramon Arens
T cell-mediated immune responses to the grafted tissues are the major reason for failed organ transplantation. The regulation of T cell responses is complex and involves major histocompatibility complex molecules on transplanted organs, cytokines, regulatory cells, and antigen-presenting cells. The evolutionary conserved Wnt signal transduction pathway has long been known for its importance in development of stem cells and immature T cells in the thymus. Recent evidence indicates the Wnt pathway as a master regulator of T cell immune responses via governing the balance between T helper 17/regulatory T cells and by regulating the formation of effector and memory cytotoxic CD8 T cell responses...
December 2016: Transplantation
https://www.readbyqxmd.com/read/27858941/block-one-unleash-a-hundred-mechanisms-of-dab2ip-inactivation-in-cancer
#17
REVIEW
Arianna Bellazzo, Giulio Di Minin, Licio Collavin
One of the most defining features of cancer is aberrant cell communication; therefore, a molecular understanding of the intricate network established among tumor cells and their microenvironment could significantly improve comprehension and clinical management of cancer. The tumor suppressor DAB2IP (Disabled homolog 2 interacting protein), also known as AIP1 (ASK1 interacting protein), has an important role in this context, as it modulates signal transduction by multiple inflammatory cytokines and growth factors...
November 18, 2016: Cell Death and Differentiation
https://www.readbyqxmd.com/read/27845762/recent-progress-in-the-molecular-recognition-and-therapeutic-importance-of-interleukin-1-receptor-associated-kinase-4
#18
REVIEW
Mahesh Chandra Patra, Sangdun Choi
Toll-like receptors (TLRs) are the most upstream pattern recognition receptors in the cell, which detect pathogen associated molecular patterns and initiate signal transduction, culminating in the transcription of pro-inflammatory cytokines and antiviral interferon. Interleukin-1 receptor-associated kinase 4 (IRAK4) is a key mediator in TLR (except for TLR3) and interleukin-1 receptor signaling pathways. The loss of kinase function of IRAK4 is associated with increased susceptibility to various pathogens, while its over-activation causes autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus, and cancer...
November 13, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27843601/predictive-and-prognostic-biomarkers-of-targeted-agents-and-modern-immunotherapy-in-renal-cell-carcinoma
#19
REVIEW
Alejo Rodriguez-Vida, Michiel Strijbos, Thomas Hutson
In the past decade, several agents targeting angiogenesis and signal transduction pathways have replaced the use of cytokines as standard of care treatment for metastatic renal cell carcinoma (RCC) after showing improved clinical benefit and survival. Currently, several novel immunotherapy agents targeting the programmed cell death-1 (PD-1) and cytotoxic T-lymphocyte-associated protein-4 (CTLA-4) pathways are being tested in metastatic RCC and are bound to revolutionise the management of this disease. However, the success of both antiangiogenic drugs and new immunotherapy agents still depends on our ability to select patients most likely to respond to treatment...
2016: ESMO Open
https://www.readbyqxmd.com/read/27832191/dengue-virus-infection-is-through-a-cooperative-interaction-between-a-mannose-receptor-and-clec5a-on-macrophage-as-a-multivalent-hetero-complex
#20
Yen-Lung Lo, Gunn-Guang Liou, Jia-Huei Lyu, Michael Hsiao, Tsui-Ling Hsu, Chi-Huey Wong
Dengue fever is a mosquito-borne viral pandemic disease that is widespread in the tropical and subtropical areas. Dengue virus uses human mannose-binding receptor (MR) and DC-SIGN on macrophages as primary receptors, and CLEC5A as signaling receptor to sense the dengue virus invasion and then to signal and stimulate macrophages to secrete cytokines. But the interplay between MR/DC-SIGN and CLEC5A is unknown. Here we demonstrate a plausible mechanism for the interaction, i.e. MR/DC-SIGN first attracts the virus with high avidity, and the virus concurrently interacts with CLEC5A in close proximity to form a multivalent hetero-complex and facilitate CLEC5A-mediated signal transduction...
2016: PloS One
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