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Cytokine signal transduction

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https://www.readbyqxmd.com/read/28643757/significance-of-expression-of-suppressor-of-cytokine-signaling-proteins-suppressor-of-cytokine-signaling-1-suppressor-of-cytokine-signaling-2-and-suppressor-of-cytokine-signaling-3-in-papillary-thyroid-cancer
#1
Toral Pundrik Kobawala, Trupti I Trivedi, Kinjal Kevin Gajjar, Girish H Patel, Nandita R Ghosh
PURPOSE: Uncontrolled cytokine signal transduction largely associated with oncogene activation, can have disastrous biological consequences. The suppressor of cytokine signaling (SOCS) proteins represent one of the mechanisms by which this rampant signaling can be dissipated. Thus, we aimed to study the expression of SOCS-1, SOCS-2, and SOCS-3 in patients having benign thyroid disease and papillary thyroid cancer. MATERIALS AND METHODS: SOCS protein expression was studied in 45 patients with benign thyroid disease and in 83 papillary thyroid cancer patients by immunohistochemistry and their association with clinicopathological characteristics and overall survival in cancer patients were analyzed using SPSS software...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28642743/hiv-1-nef-signaling-in-intestinal-mucosa-epithelium-suggests-the-existence-of-an-active-inter-kingdom-crosstalk-mediated-by-exosomes
#2
REVIEW
Cristina Felli, Olimpia Vincentini, Marco Silano, Andrea Masotti
The human intestinal mucosal surface represents the first defense against pathogens and regulates the immune response through the combination of epithelial cell (EC) functions and immunological factors. ECs act as sensors of luminal stimuli and interact with the immune cells through signal-transduction pathways, thus representing the first barrier that HIV-1 virus encounters during infection. In particular, the HIV-1 Nef protein plays a crucial role in viral invasion and replication. Nef is expressed early during viral infection and interacts with numerous cellular proteins as a scaffold/adaptor...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28639899/tweak-fn14-signaling-in-tumors
#3
Guanglei Hu, Weihui Zeng, Yumin Xia
TWEAK (tumor necrosis factor-related weak inducer of apoptosis), a member of the tumor necrosis factor superfamily, acts on cells by binding to its only receptor named Fn14 (fibroblast growth factor-inducible 14). Their engagement activates a number of intracellular signal transduction cascades and consequently leads to cell death, proliferation, migration, or survival depending on the cellular contexts. Studies have indicated that the expression of TWEAK and Fn14 is upregulated in many solid tumors compared with healthy tissues...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28639322/tnf-%C3%AE-induced-nod2-and-rip2-contribute-to-the-up-regulation-of-cytokines-induced-by-mdp-in-monocytic-thp-1-cells
#4
Xiaobin Chen, Zhilin Xiao, Xiumei Xie, Xueting Liu, Manli Jiang, Chuang Yuan, Li Yang, Jinyue Hu
Nucleotide-binding oligomerization domain containing 2 (NOD2)-induced signal transduction and cytokine production is regulated by a number of factors. However, the feedback effect of the pro-inflammatory TNF-α on NOD2-induced inflammation is not fully understood. In this study, we found unexpectedly that TNF-α up-regulated NOD2 ligand MDP-induced production of the CXC chemokines, including CXCL1, 2 and 8, and the pro-inflammatory cytokines, including IL-1β, IL-6 and TNF-α, in a dose-dependent manner at both mRNA and protein levels in monocytic THP-1 cells...
June 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28637676/editorial-focus-on-balance-between-s-nitrosylation-and-denitrosylation-modulates-myoblast-proliferation-independently-of-soluble-guanylyl-cyclase-activation
#5
Hugo P Monteiro, Fernando T Ogata
Myogenesis involves a complex series of signaling events that will result in the formation of muscle fibers. The participation of nitric oxide (NO) in myogenesis is well established. NO generation in skeletal muscle comes from the neuronal isoform of the NO synthase (nNOS). NO signals through cGMP production and s-nitrosylation of proteins in skeletal muscle. In skeletal muscle, nNOS interacts with two domains of caveolin-3 which is part of caveolae, and forms a signaling complex through additional interactions with Src kinase and p21Ras...
June 21, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28631356/immune-tolerance-effect-in-mesenteric-lymph-node-lymphocytes-of-geniposide-on-adjuvant-arthritis-rats
#6
Zheng-Rong Zhang, Hong Wu, Rong Wang, Shu-Ping Li, Li Dai, Wen-Yu Wang
Rheumatoid arthritis (RA) is a systemic, Th1 cytokine-predominant autoimmune disease result in a chronic and inflammatory disorder. Geniposide (GE), an iridoid glycoside compound that is purified from Gardenia jasminoides Ellis, has antiinflammatory and other immunoregulatory effects, but its exact mechanism of actions on RA is unknown. The aim of this study was to elucidate antiinflammation effects of GE on adjuvant arthritis (AA) rats and its possible immune tolerance mechanisms. Male Sprague-Dawley rats were administered with GE (30, 60, and 120 mg/kg) orally from day 17 to 24 after immunization...
June 19, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28630278/synthetic-deletion-of-the-interleukin-23-receptor-il-23r-stalk-region-led-to-autonomous-il-23r-homodimerization-and-activation
#7
Thorben M Hummel, Theresa Ackfeld, Marco Schönberg, Gregor Ciupka, Falk Schulz, Anne Oberdoerster, Joachim Grötzinger, Jürgen Scheller, Doreen M Floss
Interleukin 23 (IL-23) regulates the development of TH17 cells, which are important for antimicrobial and antifungal responses, autoimmune and chronic inflammatory diseases. IL-23-induced Jak/STAT signaling is mediated via the heterodimeric IL-23 receptor (IL-23R):IL-12 receptor β1 (IL-12Rβ1) complex. The typical signal-transducing receptor of the IL-6/IL-12 family contains three extracellular membrane proximal FNIII-type domains, which are not involved in cytokine binding but mandatory for signal transduction...
June 19, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28629517/erythropoietin-mediated-neuroprotection-in-insects-suggests-a-prevertebrate-evolution-of-erythropoietin-like-signaling
#8
Ralf Heinrich, Verena Günther, Natasa Miljus
The cytokine erythropoietin (Epo) mediates protective and regenerative functions in mammalian nervous systems via activation of poorly characterized receptors that differ from the "classical" homodimeric Epo receptor expressed on erythroid progenitor cells. Epo genes have been identified in vertebrate species ranging from human to fish, suggesting that Epo signaling evolved earlier than the vertebrate lineage. Studies on insects (Locusta migratoria, Chorthippus biguttulus, Tribolium castaneum) revealed Epo-mediated neuroprotection and neuroregeneration...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28629136/zinc-in-infection-and-inflammation
#9
REVIEW
Nour Zahi Gammoh, Lothar Rink
Micronutrient homeostasis is a key factor in maintaining a healthy immune system. Zinc is an essential micronutrient that is involved in the regulation of the innate and adaptive immune responses. The main cause of zinc deficiency is malnutrition. Zinc deficiency leads to cell-mediated immune dysfunctions among other manifestations. Consequently, such dysfunctions lead to a worse outcome in the response towards bacterial infection and sepsis. For instance, zinc is an essential component of the pathogen-eliminating signal transduction pathways leading to neutrophil extracellular traps (NET) formation, as well as inducing cell-mediated immunity over humoral immunity by regulating specific factors of differentiation...
June 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28627973/profile-of-gene-expression-of-tlr-signaling-pathways-in-colorectal-cancer-tissues
#10
Martyna Bednarczyk, Małgorzata Muc-Wierzgoń, Katarzyna Walkiewicz, Teresa Kokot, Edyta Fatyga, Urszula Mazurek
Toll-like receptors (TLRs) are involved in transduction of molecular signals in immune process such as induction and regulation of immunity, production of cytokines, and recognition of specific molecular patterns on the surface of microorganisms, but also in cancer development-which was partially proven in previous studies. There is a lack of detailed research on differentiating levels of TLR expression in colorectal cancer at different stages of its advancement, so in our study we want to determine whether there is such a difference of TLRs and TLR-connected protein expression...
June 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28620097/interleukin-17-family-cytokines-signaling-mechanisms-biological-activities-and-therapeutic-implications
#11
Leticia Monin, Sarah L Gaffen
The cytokines of the interleukin 17 (IL-17) family play a central role in the control of infections, especially extracellular fungi. Conversely, if unrestrained, these inflammatory cytokines contribute to the pathology of numerous autoimmune and chronic inflammatory conditions. Recent advances have led to the approval of IL-17A-blocking biologics for the treatment of moderate to severe plaque psoriasis, but much remains to be understood about the biological functions, regulation, and signaling pathways downstream of these factors...
June 15, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28589906/loss-of-calponin-h1-confers-anoikis-resistance-and-tumor-progression-in-the-development-of-high-grade-serous-carcinoma-originating-from-the-fallopian-tube-epithelium
#12
Kai-Hung Wang, Sung-Chao Chu, Tang-Yuan Chu
Increasing evidence indicates that ovarian high-grade serous carcinoma (HGSC) originates from the fallopian tube epithelium and metastasizes to the ovary as the secondary site. A working hypothesis is that detached tubal HGSC cells survive anoikis and implant on the ovary. In this study, we found that downregulation of calponin h1 (CNN1) is necessary for the anoikis survival and cell transformation. CNN1 was progressively downregulated in cells and tissues representing different stages of HGSC development from fallopian tube epithelium (FTE)...
May 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28589128/low-density-lipoprotein-receptor-related-protein-1-signaling-in-angiogenesis
#13
REVIEW
Hua Mao, Liang Xie, Xinchun Pi
Low-density lipoprotein receptor-related protein-1 (LRP1) plays multifunctional roles in lipid homeostasis, signaling transduction, and endocytosis. It has been recognized as an endocytic receptor for many ligands and is involved in the signaling pathways of many growth factors or cytokines. Dysregulation of LRP1-dependent signaling events contributes to the development of pathophysiologic processes such as Alzheimer's disease, atherosclerosis, inflammation, and coagulation. Interestingly, recent studies have linked LRP1 with endothelial function and angiogenesis, which has been underappreciated for a long time...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28585208/diet-induced-obesity-and-the-mechanism-of-leptin-resistance
#14
Atilla Engin
Leptin signaling blockade by chronic overstimulation of the leptin receptor or hypothalamic pro-inflammatory responses due to elevated levels of saturated fatty acid can induce leptin resistance by activating negative feedback pathways. Although, long form leptin receptor (Ob-Rb) initiates leptin signaling through more than seven different signal transduction pathways, excessive suppressor of cytokine signaling-3 (SOCS-3) activity is a potential mechanism for the leptin resistance that characterizes human obesity...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28585197/human-protein-kinases-and-obesity
#15
Atilla Engin
The action of protein kinases and protein phosphatases is essential for multiple physiological responses. Each protein kinase displays its own unique substrate specificity, and a regulatory mechanism that may be modulated by association with other proteins. Protein kinases are classified by the target amino acid in their substrates. Some protein kinases can phosphorylate both serine/threonine, as well as tyrosine residues. This group of kinases has been known as dual specificity kinases. Unlike the dual specificity kinases, a heterogeneous group of protein phosphatases are known as dual-specificity phosphatases...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28565874/resistin-increases-the-expression-of-nod2-in-mouse-monocytes
#16
Yi Ren, Taomei Wan, Zhicai Zuo, Hengmin Cui, Xi Peng, Jing Fang, Junliang Deng, Yanchun Hu, Shuming Yu, Liuhong Shen, Xiaoping Ma, Ya Wang, Zhihua Ren
Previous studies have indicated that resistin, a type of adipokine, contributes to the development of insulin resistance and type 2 diabetes mellitus, and mediates inflammatory reactions. However, a specific receptor for resistin has not yet been identified. In this study, the relationship between resistin and nucleotide-binding oligomerization domain-like receptors, as well as resistin signal transduction, was examined through transfection, quantitative polymerase chain reaction, western blot analysis and ELISA...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28555083/ppar-delta-modulates-membrane-cholesterol-and-cytokine-signaling-in-malignant-b-cells
#17
L Sun, Y Shi, G Wang, X Wang, S Zeng, S E Dunn, G D Fairn, Y-J Li, D E Spaner
New treatment strategies may be uncovered with a deeper understanding of the mechanisms that underlie aberrant signal transduction in B cell cancers such as chronic lymphocytic leukemia (CLL). The lipid-activated nuclear receptor peroxisome proliferator-activated receptor delta (PPARδ) mediates a number of features of aggressive cancers and was found to enhance janus kinase (JAK)-mediated phosphorylation of signal transducer and activator of transcription (STAT) proteins in B lymphoma cell-lines and primary CLL cells...
May 30, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28550115/involvement-of-cell-surface-90-kda-heat-shock-protein-hsp90-in-pattern-recognition-by-human-monocyte-derived-macrophages
#18
Małgorzata Bzowska, Anna Nogieć, Krystian Bania, Magdalena Zygmunt, Mirosław Zarębski, Jerzy Dobrucki, Krzysztof Guzik
Heat shock proteins (HSPs) are typical intracellular chaperones which also appear on the cell surface and in extracellular milieu. HSP90, which chaperones many proteins involved in signal transduction, is also a regular component of LPS-signaling complexes on Mϕ. As LPS is a prototypical PAMP, we speculated that HSP90 is engaged in pattern recognition by professional phagocytes. In this report, we provide the first evidence, to our knowledge, of the geldanamycin (Ge)-inhibitable HSP90 on the surface of live monocyte-derived Mϕs (hMDMs)...
May 26, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28544936/effect-of-follicular-dendritic-cell-secreted-protein-on-gene-expression-of-human-periodontal-ligament-cells
#19
Lin Xiang, Na Xin, Ying Yuan, Xiaogang Hou, Junwei Chen, Na Wei, Ping Gong
OBJECTIVE: The objective of this study was to investigate the specific roles of follicular dendritic cell secreted protein (FDC-SP), a protein exists in saliva, in the inhibition of calcium precipitation during periodontal regeneration, as well as affect phenotype expression of human periodontal ligament cells (hPDLCs) during the differentiation process. DESIGN: To investigate this, we applied microarray technology to identify gene expression changes in hPDLCs transfected with FDC-SP and then clustered them according to their biological functions...
May 17, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28542326/the-murine-cytomegalovirus-m35-protein-antagonizes-type-i-ifn-induction-downstream-of-pattern-recognition-receptors-by-targeting-nf-%C3%AE%C2%BAb-mediated-transcription
#20
Baca Chan, Vladimir Gonçalves Magalhães, Niels A W Lemmermann, Vanda Juranić Lisnić, Markus Stempel, Kendra A Bussey, Elisa Reimer, Jürgen Podlech, Stefan Lienenklaus, Matthias J Reddehase, Stipan Jonjić, Melanie M Brinkmann
The type I interferon (IFN) response is imperative for the establishment of the early antiviral immune response. Here we report the identification of the first type I IFN antagonist encoded by murine cytomegalovirus (MCMV) that shuts down signaling following pattern recognition receptor (PRR) sensing. Screening of an MCMV open reading frame (ORF) library identified M35 as a novel and strong negative modulator of IFNβ promoter induction following activation of both RNA and DNA cytoplasmic PRR. Additionally, M35 inhibits the proinflammatory cytokine response downstream of Toll-like receptors (TLR)...
May 2017: PLoS Pathogens
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