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interferon regulator factor 7

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https://www.readbyqxmd.com/read/29774022/acute-zika-virus-infection-in-an-endemic-area-shows-modest-proinflammatory-systemic-immunoactivation-and-cytokine-symptom-associations
#1
Jéssica Barletto de Sousa Barros, Paulo Alex Neves da Silva, Rosemary de Carvalho Rocha Koga, Patrícia Gonzalez-Dias, José Rodrigues Carmo Filho, Patrícia Resende Alo Nagib, Verônica Coelho, Helder I Nakaya, Simone Gonçalves Fonseca, Irmtraut Araci Hoffmann Pfrimer
An early immune response to Zika virus (ZIKV) infection may determine its clinical manifestation and outcome, including neurological effects. However, low-grade and transient viremia limits the prompt diagnosis of acute ZIKV infection. We have investigated the plasma cytokine, chemokine, and growth factor profiles of 36 individuals from an endemic area displaying different symptoms such as exanthema, headache, myalgia, arthralgia, fever, hyperemia, swelling, itching, and nausea during early-phase infection...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29759145/thymoquinone-increases-the-expression-of-neuroprotective-proteins-while-decreasing-the-expression-of-pro-inflammatory-cytokines-and-the-gene-expression-nf%C3%AE%C2%BAb-pathway-signaling-targets-in-lps-ifn%C3%AE-activated-bv-2-microglia-cells
#2
Makini K Cobourne-Duval, Equar Taka, Patricia Mendonca, Karam F A Soliman
Neuroinflammation and microglial activation are pathological markers of a number of central nervous system (CNS) diseases. Chronic activation of microglia induces the release of excessive amounts of reactive oxygen species (ROS) and pro-inflammatory cytokines. Additionally, chronic microglial activation has been implicated in several neurodegenerative diseases, including Alzheimer's disease and Parkinson's disease. Thymoquinone (TQ) has been identified as one of the major active components of the natural product Nigella sativa seed oil...
July 15, 2018: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29751576/thymoquinone-suppresses-irf-3-mediated-expression-of-type-i-interferons-via-suppression-of-tbk1
#3
Nur Aziz, Young-Jin Son, Jae Youl Cho
Interferon regulatory factor (IRF)-3 is known to have a critical role in viral and bacterial innate immune responses by regulating the production of type I interferon (IFN). Thymoquinone (TQ) is a compound derived from black cumin ( Nigella sativa L.) and is known to regulate immune responses by affecting transcription factors associated with inflammation, including nuclear factor-κB (NF-κB) and activator protein-1 (AP-1). However, the role of TQ in the IRF-3 signaling pathway has not been elucidated...
May 3, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29747011/molecular-characterization-of-rhodeus-uyekii-tripartite-motif-protein-1-trim1-involved-in-ifn-%C3%AE-lps-induced-nf-%C3%AE%C2%BAb-signaling
#4
Julan Kim, Ju-Won Kim, Dong-Gyun Kim, Bo-Hye Nam, Young-Ok Kim, Jung Youn Park, Hee Jeong Kong
The tripartite motif-containing (TRIM) proteins are involved in a wide range of cellular processes, and the role of TRIM1 in immunity has been explored. However, fundamental studies on fish TRIM1 are lacking. In this study, we cloned and characterized TRIM1 cDNA from the Korean rose bitterling, Rhodeus uyekii (RuTRIM1). Two RuTRIM1 isoforms (RuTRIM1-X1 and RuTRIM1-X2) were identified. The coding sequence (CDS) of RuTRIM1-X1 comprised 2157 bp encoding a 718-aa protein, and the CDS of RuTRIM1-X2 comprised 1929 bp encoding a 642-aa protein...
May 7, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29732997/hydroxysafflor-yellow-a-reprograms-tlr9-signalling-pathway-in-ischaemic-cortex-after-cerebral-ischaemia-and-reperfusion
#5
Zhe Gong, Jingrui Pan, Xiangpen Li, Hongxuan Wang, Lei He, Ying Peng
Hydroxysafflor yellow A (HSYA) was reported to suppress inflammation in ischaemic microglia. However, the mechanism through which HSYA inhibits inflammation caused by cerebral ischaemia and reperfusion injury remains unknown. Here, we have mimicked acute cerebral ischaemia and reperfusion injury by subjecting male Sprague-Dawley (SD) rats to transient middle cerebral artery occlusion for 90 minutes and have demonstrated that toll-like receptor 9 (TLR9) was upregulated from day 3 after reperfusion, accompanied by the persistent activation of the pro-inflammatory NF-κB pathway from 6 hours to day 7...
May 1, 2018: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/29720400/interferon-regulatory-factor-1-and-a-variant-of-heterogeneous-nuclear-ribonucleoprotein-l-coordinately-silence-the-gene-for-adhesion-protein-ceacam1
#6
Kenneth J Dery, Craig Silver, Lu Yang, John E Shively
The adhesion protein Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) is widely expressed in epithelial cells as a short cytoplasmic isoform (S-iso) and in leukocytes as a long cytoplasmic isoform (L-iso) and is frequently silenced in cancer by unknown mechanisms. Previously, we reported that interferon response factor 1 (IRF1) biases alternative splicing (AS) to include the variable exon 7 in CEACAM1, generating L-iso. We now show that IRF1 and a variant of heterogeneous nuclear ribonucleoprotein L (Lv1) coordinately silence the CEACAM1 gene...
May 2, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29710534/antiviral-effects-of-ma-huang-tang-against-h1n1-influenza-virus-infection-in-vitro-and-in-an-icr-pneumonia-mouse-model
#7
Wenyang Wei, Haitong Wan, Xueqian Peng, Huifen Zhou, Yiyu Lu, Yu He
Ma Huang Tang (MHT), a classical Chinese herbal decoction which has been used in clinic for thousands of years, was very effective in treating the upper respiratory tract infection. But its activity against influenza virus A, the anti-inflammatory effect and the underlying mechanisms have been poorly investigated in previous researches. In this study, the antiviral efficacy of MHT directly inhibiting influenza virus A was investigated in vitro in MDCK cells. In an ICR pneumonia mouse model infected with influenza virus A PR/8/34, MHT (8, 4 and 2 g/kg) were oral administrated for 7 days after viral challenge, to evaluate the effect of MHT on ameliorating viral pneumonia and decipher the underlying mechanisms...
April 5, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29702095/evidence-that-interferon-tau-secreted-from-day-7-embryo-in-vivo-generates-anti-inflammatory-immune-response-in-the-bovine-uterus
#8
Mohammad B Rashid, Anup K Talukder, Kazuya Kusama, Shingo Haneda, Toshiro Takedomi, Hitomi Yoshino, Satoru Moriyasu, Motozumi Matsui, Masayuki Shimada, Kazuhiko Imakawa, Akio Miyamoto
Recent studies suggest that Day-7 bovine embryo starts to communicate with the uterine epithelium through interferon-tau (IFNT) signaling. However, immune modulatory role of IFNT in the uterus just after the embryo moves from the oviduct is unclear. We aimed to examine the hypothesis that Day-7 bovine embryo secretes IFNT in the uterus, which induces anti-inflammatory response in immune cells. The uterine flush (UF) with multiple embryos was collected from Day-7 donor pregnant cows and peripheral blood mononuclear cells (PBMCs) were then cultured in UF...
April 24, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29662312/nanoselenium-prevents-eimeriosis-induced-inflammation-and-regulates-mucin-gene-expression-in-mice-jejunum
#9
Abdulsalam A Alkhudhayri, Mohamed A Dkhil, Saleh Al-Quraishy
Background: Although elemental selenium has been found to be effective against Eimeria , no study has yet investigated the effects of selenium nanoparticles (SeNPs) on the Eimeria parasite. The aim of this study, therefore, was to evaluate the ameliorative effect of SeNPs compared with elemental selenium on mice jejunum infected with sporulated oocysts of Eimeria papillata . Methods: The mice were divided into 4 groups, with the first being the non-infected, control group, and the second, third, and fourth groups being orally inoculated with 1,000 sporulated oocysts of E...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29658572/pkr-inhibition-mediates-endotoxin-tolerance-in-macrophages-through-inactivation-of-pi3k-akt-signaling
#10
Hailin Xu, Juan Chen, Xiang Si, Minying Chen, Fei Pei, Chunfang Qiu, Jianfeng Wu, Xiangdong Guan
Following long‑term exposure to endotoxins, macrophages enter an immunosuppressive state that renders them unable respond to subsequent exposures to endotoxin, a phenomenon that is termed 'endotoxin tolerance'. Endotoxin tolerance increases the risks of secondary infection and mortality in patients with sepsis. In endotoxin‑tolerant macrophages, the mixed variation of gene transcription is referred to as macrophage reprogramming. The mechanisms underlying macrophage reprogramming remain unclear at present...
April 11, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29643988/combination-therapy-of-chitosan-gynostemma-and-motherwort-alleviates-the-progression-of-experimental-rat-chronic-renal-failure-by-inhibiting-stat1-activation
#11
Wenxia Bai, Shudong Wang, Shanshan An, Mengjie Guo, Guangming Gong, Wenya Liu, Shaoxin Ma, Xin Li, Jihua Fu, Wenbing Yao
This study aimed to investigate the effect of single and combination therapy using chitosan (K), gynostemma (J), and motherwort (Y) on an experimental rat model of chronic renal failure (CRF) induced by adenine and the underlying mechanisms. CRF rats were treated with individual or combinational therapy with two or three of these agents. Biochemical indicators showed that the levels of blood urea nitrogen, creatinine and uric acid decreased and the levels of albumin and hemoglobin increased by single or combination therapy of these drugs...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29618514/activation-of-stimulator-of-interferon-genes-sting-induces-adam17-mediated-shedding-of-the-immune-semaphorin-sema4d
#12
Kou Motani, Hidetaka Kosako
Stimulator of interferon genes (STING) is an endoplasmic reticulum (ER)-resident membrane protein that mediates cytosolic pathogen DNA-induced innate immunity and inflammatory responses in host defenses. STING is activated by cyclic di-nucleotides and is then translocated to the Golgi apparatus, an event that triggers STING assembly with the downstream enzyme TANK-binding kinase 1 (TBK1). This assembly leads to the phosphorylation of the transcription factor interferon regulatory factor 3 (IRF3), which, in turn, induces expression of type-I interferon (IFN) and chemokine genes...
April 4, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29616030/recognition-of-double-stranded-rna-and-regulation-of-interferon-pathway-by-toll-like-receptor-10
#13
Suki Man-Yan Lee, Tsz-Fung Yip, Sheng Yan, Dong-Yan Jin, Hong-Li Wei, Rey-Ting Guo, Joseph Sriyal Malik Peiris
Toll-like receptor (TLR)-10 remains an orphan receptor without well-characterized ligands or functions. Here, we reveal that TLR10 is predominantly localized to endosomes and binds dsRNA in vitro at endosomal pH, suggesting that dsRNA is a ligand of TLR10. Recognition of dsRNA by TLR10 activates recruitment of myeloid differentiation primary response gene 88 for signal transduction and suppression of interferon regulatory factor-7 dependent type I IFN production. We also demonstrate crosstalk between TLR10 and TLR3, as they compete with each other for dsRNA binding...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29610295/samhd1-suppresses-innate-immune-responses-to-viral-infections-and-inflammatory-stimuli-by-inhibiting-the-nf-%C3%AE%C2%BAb-and-interferon-pathways
#14
Shuliang Chen, Serena Bonifati, Zhihua Qin, Corine St Gelais, Karthik M Kodigepalli, Bradley S Barrett, Sun Hee Kim, Jenna M Antonucci, Katherine J Ladner, Olga Buzovetsky, Kirsten M Knecht, Yong Xiong, Jacob S Yount, Denis C Guttridge, Mario L Santiago, Li Wu
Sterile alpha motif and HD-domain-containing protein 1 (SAMHD1) blocks replication of retroviruses and certain DNA viruses by reducing the intracellular dNTP pool. SAMHD1 has been suggested to down-regulate IFN and inflammatory responses to viral infections, although the functions and mechanisms of SAMHD1 in modulating innate immunity remain unclear. Here, we show that SAMHD1 suppresses the innate immune responses to viral infections and inflammatory stimuli by inhibiting nuclear factor-κB (NF-κB) activation and type I interferon (IFN-I) induction...
April 2, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29589052/the-nitrone-spin-trap-5-5-dimethyl-1-pyrroline-n-oxide-dampens-lipopolysaccharide-induced-transcriptomic-changes-in-macrophages
#15
M D Muñoz, M C Della Vedova, P R Bushel, D Ganini da Silva, R P Mason, Z Zhai, S E Gomez Mejiba, D C Ramirez
OBJECTIVE: M1-like inflammatory phenotype of macrophages plays a critical role in tissue damage in chronic inflammatory diseases. Previously, we found that the nitrone spin trap 5,5-dimethyl-1-pyrroline N-oxide (DMPO) dampens lipopolysaccharide (LPS)-triggered inflammatory priming of RAW 264.7 cells. Herein, we tested whether DMPO by itself can induce changes in macrophage transcriptome, and that these effects may prevent LPS-induced activation of macrophages. MATERIALS AND METHODS: To test our hypothesis, we performed a transcriptomic and bioinformatics analysis in RAW 264...
March 27, 2018: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29560281/regulation-of-transforming-growth-factor-is-involved-in-the-efficacy-of-combined-5-fluorouracil-and-interferon-alpha-2b-therapy-of-advanced-hepatocellular-carcinoma
#16
Youhei Okada, Ting Wang, Kazuhiro Kasai, Kazuyuki Suzuki, Yasuhiro Takikawa
Transforming growth factor-beta (TGF-β) is critical in cancer cell invasion and metastasis. The effects of a treatment that targets TGF-β using the combination of interferon alpha (IFNα)-2b and 5-fluorouracil (5-FU) are unknown. Here, we show that the serum levels of TGF-β1 prior to the therapy correlate with increased maximum tumor diameter, which is significantly ( p  < 0.01) decreased after the combination therapy. 5-FU increased both the expression and secretion levels of TGF-β1 in hepatoma cells, but not in normal hepatocytes...
2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29556312/plac1-specific-tcr-engineered-t-cells-mediate-antigen-specific-antitumor-effects-in-breast-cancer
#17
Qiongshu Li, Muyun Liu, Man Wu, Xin Zhou, Shaobin Wang, Yuan Hu, Youfu Wang, Yixin He, Xiaoping Zeng, Junhui Chen, Qubo Liu, Dong Xiao, Xiang Hu, Weibin Liu
Placenta-specific 1 (PLAC1), a novel cancer-testis antigen (CTA), is expressed in a number of different human malignancies. It is frequently produced in breast cancer, serving a function in tumorigenesis. Adoptive immunotherapy using T cell receptor (TCR)-engineered T cells against CTA mediates objective tumor regression; however, to the best of our knowledge, targeting PLAC1 using engineered T cells has not yet been attempted. In the present study, the cDNAs encoding TCRα- and β-chains specific for human leukocyte antigen (HLA)-A*0201-restricted PLAC1 were cloned from a cytotoxic T-lymphocyte, generated by in vitro by the stimulation of CD8+ T cells using autologous HLA-A2+ dendritic cells loaded with a PLAC1-specific peptide (p28-36, VLCSIDWFM)...
April 2018: Oncology Letters
https://www.readbyqxmd.com/read/29549296/mechanical-stretch-induced-transcriptomic-profiles-in-cardiac-myocytes
#18
Jaana Rysä, Heikki Tokola, Heikki Ruskoaho
Mechanical forces are able to activate hypertrophic growth of cardiomyocytes in the overloaded myocardium. However, the transcriptional profiles triggered by mechanical stretch in cardiac myocytes are not fully understood. Here, we performed the first genome-wide time series study of gene expression changes in stretched cultured neonatal rat ventricular myocytes (NRVM)s, resulting in 205, 579, 737, 621, and 1542 differentially expressed (>2-fold, P < 0.05) genes in response to 1, 4, 12, 24, and 48 hours of cyclic mechanical stretch...
March 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29545793/src-family-kinases-regulate-interferon-regulatory-factor-1-k63-ubiquitination-following-activation-by-tlr7-8-vaccine-adjuvant-in-human-monocytes-and-b-cells
#19
Lorenza Tulli, Francesca Cattaneo, Juliette Vinot, Cosima T Baldari, Ugo D'Oro
Toll-like receptors (TLRs) play a key role in the activation of innate immune cells, in which their engagement leads to production of cytokines and co-stimulatory molecules. TLRs signaling requires recruitment of toll/IL-1R (TIR) domain-containing adaptors, such as MyD88 and/or TRIF, and leads to activation of several transcription factors, such as NF-κB, the AP1 complex, and various members of the interferon regulatory factor (IRF) family, which in turn results in triggering of several cellular functions associated with these receptors...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29534658/gene-expression-profile-of-toll-like-receptor-adaptor-interferon-regulatory-factor-cytokine-axis-during-liver-regeneration-after-partial-ischemia-reperfusion-injury
#20
Meysam Nasiri, Mohammad-Hossein Karimi, Negar Azarpira, Iraj Saadat
OBJECTIVES: Toll-like receptors and downstream signal transduction pathways play pivotal roles in induction of inflammation, which is crucial for liver injury and regeneration. MATERIALS AND METHODS: Using a mouse model of partial hepatic ischemia-reperfusion injury followed by a 28-day time course for liver repair and regeneration, we assessed gene expression levels for Toll-like receptors, myeloid differentiation primary response 88, TIR-domain-containing adapter-inducing interferon-β, nuclear factor κB, interferon regulatory factors, tumor necrosis factor-α, and interleukins 1β and 6 at days 1, 4, 7, 14, and 28 after reperfusion in liver and blood cells by quantitative polymerase chain reaction...
March 9, 2018: Experimental and Clinical Transplantation
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