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https://www.readbyqxmd.com/read/28100608/herpes-simplex-virus-type-1-ul24-abrogates-dna-sensing-signal-pathway-by-inhibiting-nf-%C3%AE%C2%BAb-activation
#1
Haiyan Xu, Chenhe Su, Angela Pearson, Christopher H Mody, Chunfu Zheng
: Cyclic GMP-AMP synthase (cGAS) is a newly identified DNA sensor that recognizes foreign DNA, including the genome of herpes simplex virus 1 (HSV-1). Upon binding of viral DNA, cGAS produces cyclic GMP-AMP, which interacts with and activates stimulator of interferon genes (STING) to trigger the transcription of anti-viral genes such as type I interferons and production of inflammatory cytokines. HSV-1 UL24 is widely conserved among the herpesviruses family and is essential for efficient viral replication...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28099528/inos-as-a-driver-of-inflammation-and-apoptosis-in-mouse-skeletal-muscle-after-burn-injury-possible-involvement-of-sirt1-s-nitrosylation-mediated-acetylation-of-p65-nf-%C3%AE%C2%BAb-and-p53
#2
Harumasa Nakazawa, Kyungho Chang, Shohei Shinozaki, Takashi Yasukawa, Kazuhiro Ishimaru, Shingo Yasuhara, Yong-Ming Yu, J A Jeevendra Martyn, Ronald G Tompkins, Kentaro Shimokado, Masao Kaneki
Inflammation and apoptosis develop in skeletal muscle after major trauma, including burn injury, and play a pivotal role in insulin resistance and muscle wasting. We and others have shown that inducible nitric oxide synthase (iNOS), a major mediator of inflammation, plays an important role in stress (e.g., burn)-induced insulin resistance. However, it remains to be determined how iNOS induces insulin resistance. Moreover, the interrelation between inflammatory response and apoptosis is poorly understood, although they often develop simultaneously...
2017: PloS One
https://www.readbyqxmd.com/read/28099441/puma-and-nf-kb-are-cell-signaling-predictors-of-reovirus-oncolysis-of-breast-cancer
#3
Chandini Thirukkumaran, Zhong-Qiao Shi, Ponnampalam Thirukkumaran, Joanne Luider, Karen Kopciuk, Jason Spurrell, Kate Elzinga, Don Morris
BACKGROUND AND PURPOSE: Reovirus is a ubiquitous RNA virus that exploits aberrant signaling pathways for its replication. The oncolytic potential of reovirus against numerous cancers under pre-clinical/clinical conditions has been documented by us and others. Despite its proven clinical activity, the underlying mechanisms of reovirus oncolysis is still not well elucidated. If reovirus therapy is to be optimized for cancer, including breast cancer patients, it is imperative to understand the mechanisms of reovirus oncolysis, especially in treatment of resistant tumour...
2017: PloS One
https://www.readbyqxmd.com/read/28098795/broad-spectrum-inhibition-of-the-cc-chemokine-class-improves-wound-healing-and-wound-angiogenesis
#4
Anisyah Ridiandries, Christina Bursill, Joanne Tan
Angiogenesis is involved in the inflammation and proliferation stages of wound healing, to bring inflammatory cells to the wound and provide a microvascular network to maintain new tissue formation. An excess of inflammation, however, leads to prolonged wound healing and scar formation, often resulting in unfavourable outcomes such as amputation. CC-chemokines play key roles in the promotion of inflammation and inflammatory-driven angiogenesis. Therefore, inhibition of the CC-chemokine class may improve wound healing...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098047/vitamin-a-deficiency-suppresses-fish-immune-function-with-differences-in-different-intestinal-segments-the-role-of-transcriptional-factor-nf-%C3%AE%C2%BAb-and-p38-mitogen-activated-protein-kinase-signalling-pathways
#5
Li Zhang, Lin Feng, Wei-Dan Jiang, Yang Liu, Pei Wu, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Xiao-Qiu Zhou
The present study investigated the effects of dietary vitamin A on immune function in the proximal intestine (PI), mid intestine (MI) and distal intestine (DI) of young grass carp (Ctenopharyngodon idella). Fish were fed graded levels of dietary vitamin A for 10 weeks, and then a challenge test using an injection of Aeromonas hydrophila was conducted for 14 d. The results showed that, compared with the optimum vitamin A level, vitamin A deficiency significantly decreased fish growth performance, increased enteritis morbidity, decreased intestinal innate humoral immune response and aggravated intestinal inflammation...
January 18, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28096675/the-role-of-heme-oxygenase-1-ho-1-in-the-regulation-of-inflammatory-reaction-neuronal-cell-proliferation-and-apoptosis-in-rats-after-intracerebral-hemorrhage-ich
#6
Xuezheng Fan, Linshen Mu
OBJECTIVE: To investigate the role of heme oxygenase-1 (HO-1) in the regulation of inflammatory reaction, neuronal cell proliferation and apoptosis in rats after intracerebral hemorrhage (ICH). METHODS: Thirty-six adult Sprague Dawley (SD) male rats were randomly divided into sham operation, ICH and zinc protoporphyrin (ZPP) group. Rats (except for the sham operation group) were given 50 μL stereotactic injection of autologous blood from the femoral artery into the caudate nucleus, to establish an ICH model...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28095338/docosahexaenoic-acid-attenuates-lps-stimulated-inflammatory-response-by-regulating-the-ppar%C3%AE-nf-%C3%AE%C2%BAb-pathways-in-primary-bovine-mammary-epithelial-cells
#7
REVIEW
Xuexiu He, Weijian Liu, Mingyu Shi, Zhengtao Yang, Xichen Zhang, Pengtao Gong
BACKGROUND: Docosahexaenoic acid (DHA) is a major dietary n-3 polyunsaturated fatty acid (n-3 PUFA) in fish oil, and has been reported to possess a number of biological properties, such as anti-inflammatory, antitumor and immune-regulatory properties. However, whether DHA exert anti-inflammatory effect on lipopolysaccharide (LPS)-induced mastitis remains unclear. In this study, we investigate the effect and underlying mechanisms of the effects of DHA on LPS-stimulated primary bovine mammary epithelial cells (bMEC)...
January 5, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28093718/ribosomal-protein-s3-gene-silencing-protects-against-experimental-allergic-asthma
#8
Jinrui Dong, Wupeng Liao, Hong Yong Peh, Tze Khee Chan, W S Daniel Tan, Li Li, Amy Yong, W S Fred Wong
BACKGROUND AND PURPOSE: Ribosomal protein S3 (RPS3) is a 40S ribosomal protein of the S3P family essential for executing protein translation. RPS3 has recently been found to interact with the p65 subunit of the NF-κB complex, and promote p65 DNA-binding activity. Persistent activation of the NF-κB pathway is evident in allergic asthma. We hypothesized that gene silencing of lung RPS3 can ameliorate allergic airway inflammation. EXPERIMENTAL APPROACH: Gene silencing efficacy of RPS3 siRNA was screened in three different mouse cell lines by real-time PCR and immunoblotting...
January 17, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28089769/nuclear-translocation-of-stat3-and-nf-%C3%AE%C2%BAb-are-independent-of-each-other-but-nf-%C3%AE%C2%BAb-supports-expression-and-activation-of-stat3
#9
Antons Martincuks, Katarzyna Andryka, Andrea Küster, Hildegard Schmitz-Van de Leur, Michal Komorowski, Gerhard Müller-Newen
NF-κB and STAT3 are essential transcription factors in immunity and act at the interface of the transition from chronic inflammation to cancer. Different functional crosstalks between NF-κB and STAT3 have been recently described arguing for a direct interaction of both proteins. During a systematic analysis of NF-κB/STAT3 crosstalk we observed that appearance of the subcellular distribution of NF-κB and STAT3 in immunofluorescence heavily depends on the fixation procedure. Therefore, we established an optimized fixation protocol for the reliable simultaneous analysis of the subcellular distributions of both transcription factors...
January 9, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28088324/protective-effect-of-sugar-cane-extract-against-dextran-sulfate-sodium-induced-colonic-inflammation-in-mice
#10
Bin Wang, Yansen Li, Masami Mizu, Toma Furuta, ChunMei Li
Sugar cane extract (SCE) exhibits various biological effects and has been reported to enhance animal growth performance. However, the effect of SCE on inflammation in animals is still obscure. To study the effects and underlying mechanism of SCE on dextran sulfate sodium (DSS)-induced colonic inflammation, forty female ICR mice (26.63±0.19g, 6-week-old) were assigned into four groups: a control group (Cont), a DSS-challenged group (DSS), a SCE-supplemented group (SCE), and a DSS+SCE group (DSS+SCE). Mice in Cont group and DSS group were fed basic diet and other mice received 1% SCE supplemented in basic diet from 6-week to 8-week-old...
December 26, 2016: Tissue & Cell
https://www.readbyqxmd.com/read/28057697/zonula-occludens-1-nf-%C3%AE%C2%BAb-cxcl8-a-new-regulatory-axis-for-tumor-angiogenesis
#11
Julien Lesage, Meggy Suarez-Carmona, Deborah Neyrinck-Leglantier, Simon Grelet, Silvia Blacher, Walter Hunziker, Philippe Birembaut, Agnes Noël, Béatrice Nawrocki-Raby, Christine Gilles, Myriam Polette
Zonula occludens-1 (ZO-1) is a submembrane scaffolding protein that may display proinvasive functions when it relocates from tight junctions into the cyto-nuclear compartment. This article examines the functional involvement of ZO-1 in CXCL8/IL-8 chemokine expression in lung and breast tumor cells. ZO-1 small interfering RNA and cDNA transfection experiments emphasized regulation of CXCL8/IL-8 expression via a cyto-nuclear pool of ZO-1. Luciferase reporter assays highlighted a 173-bp region of CXCL8/IL-8 promoter that responded to ZO-1...
January 5, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28043920/altered-mir-370-expression-in-hepatic-ischemia-reperfusion-injury-correlates-with-the-level-of-nuclear-kappa-b-nf-%C3%AE%C2%BAb-related-factors
#12
Jie Zhu, Fangfang Zhu, Wenfeng Song, Bin Zhang, Xie Zhang, Xiaofeng Jin, Hong Li
BACKGROUND & AIMS: MicroRNAs (miRNAs) are a class of small endogenous, non-coding RNAs that regulate gene expression at both the transcription and translation levels. Whether miRNAs have taken part in liver ischemia-reperfusion (IR) injury was rarely reported. The purpose of this article is to investigate the potential role of miR-370 in hepatic IR injury. METHODS: Male C57BL/6 mice were divided into 5 groups (sham-operated group, I/R group, IPC group, antagomir-370 group and antagomir-NC), and the expression levels of miR-370 were assessed by quantitative real-time PCR...
December 30, 2016: Gene
https://www.readbyqxmd.com/read/28043032/kaempferol-slows-intervertebral-disc-degeneration-by-modifying-lps-induced-osteogenesis-adipogenesis-imbalance-and-inflammation-response-in-bmscs
#13
Jun Zhu, Haoyu Tang, Zhenhua Zhang, Yong Zhang, Chengfeng Qiu, Ling Zhang, Pinge Huang, Feng Li
Intervertebral disc (IVD) degeneration is a common disease that represents a significant cause of socio-economic problems. Bone marrow-derived mesenchymal stem cells (BMSCs) are a potential autologous stem cell source for the nucleus pulposus regeneration. Kaempferol has been reported to exert protective effects against both osteoporosis and obesity. This study explored the effect of kaempferol on BMSCs differentiation and inflammation. The results demonstrated that kaempferol did not show any cytotoxicity at concentrations of 20, 60 and 100μM...
February 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28041912/a-constitutive-intrinsic-inflammatory-signaling-circuit-composed-of-mir-196b-meis2-ppp3cc-and-p65-drives-prostate-cancer-castration-resistance
#14
Ji-Hak Jeong, Sun-Jin Park, Shohreh Iravani Dickinson, Jun-Li Luo
Androgen deprivation therapy is the most effective treatment for advanced prostate cancer, but almost all cancer eventually becomes castration resistant, and the underlying mechanisms are largely unknown. Here, we show that an intrinsic constitutively activated feedforward signaling circuit composed of IκBα/NF-κB(p65), miR-196b-3p, Meis2, and PPP3CC is formed during the emergence of castration-resistant prostate cancer (CRPC). This circuit controls the expression of stem cell transcription factors that drives the high tumorigenicity of CRPC cells...
January 5, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28040728/cytoplasmic-poly-ga-aggregates-impair-nuclear-import-of-tdp-43-in-c9orf72-als-ftld
#15
Bahram Khosravi, Hannelore Hartmann, Stephanie May, Christoph Möhl, Helena Ederle, Meike Michaelsen, Martin H Schludi, Dorothee Dormann, Dieter Edbauer
A repeat expansion in the non-coding region of C9orf72 gene is the most common mutation causing frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS). Sense and antisense transcripts are translated into aggregating dipeptide repeat (DPR) proteins in all reading frames (poly-GA,-GP,-GR,-PA and -PR) through an unconventional mechanism. How these changes contribute to cytoplasmic mislocalization and aggregation of TDP-43 and thereby ultimately lead to neuron loss remains unclear. The repeat RNA itself and poly-GR/PR have been linked to impaired nucleocytoplasmic transport...
December 30, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28035397/combined-toxicity-and-underlying-mechanisms-of-a-mixture-of-eight-heavy-metals
#16
Qi Zhou, Yuanliang Gu, Xia Yue, Guochuan Mao, Yafei Wang, Hong Su, Jin Xu, Hongbo Shi, Baobo Zou, Jinshun Zhao, Renyuan Wang
With the rapid development of modernization and industrialization in China, a large quantity of heavy metals, including zinc, copper, lead, cadmium and mercury, have been entering the atmosphere, soil and water, the latter being the primary route of pollution. In the present study, in vitro experiments were performed to examine the joint toxicity and the underlying mechanisms of the eight most common heavy metals contaminating offshore waters on the eastern coast of Ningbo region. Using a cell cycle assay, cell apoptosis and reactive oxygen species (ROS) detection methods, the present study demonstrated that the heavy metal mixture arrested JB6 cells at the S phase, induced the generation of ROS and cell apoptosis...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28035387/therapeutic-mechanisms-of-ibuprofen-prednisone-and-betamethasone-in-osteoarthritis
#17
Fenglong Sun, Yaohua Zhang, Qiang Li
The present study aimed to investigate the therapeutic mechanisms of nonsteroidal anti-inflammatory drugs (NSAIDs) and steroids in osteoarthritis (OA). The CHON‑002 human chondrocyte cell line was used in the study. The levels of the cytokines, interleukin (IL)‑1β, IL‑6, IL‑8 and IL‑10, released by cells treated with tumor necrosis factor‑α (TNF‑α) were determined by ELISA. Levels of collagen I, aggrecan, matrix metalloproteinase (MMP)‑1, MMP‑13, signal transducer and activator of transcription (STAT) 3, nuclear factor‑κB (NF‑κB) subunit p65 and inhibitory subunit of NF‑κB (IκB) following treatment with IL‑1β, IL‑6, IL‑8 or IL‑10 were assessed by western blot...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28035356/effect-of-yi-guan-jian-decoction-on-differentiation-of-bone-marrow-mesenchymalstem-cells-into-hepatocyte-like-cells-in-dimethylnitrosamine-induced-liver-cirrhosis-in-mice
#18
Yan Xiang, Bing-Yao Pang, Yuan Zhang, Qiao-Ling Xie, Ying Zhu, Ai-Jing Leng, Long-Qing Lu, Hai-Long Chen
Yi Guan Jian decoction (YGD) may induce the differentiation of bone marrow mesenchymal stem cells (BMSCs) into hepatocyte-like cells (HLCs); however, the underlying mechanisms remain to be elucidated. The present study aimed to investigate this process. To do this, a dimethylnitrosamine (DMN)-induced liver cirrhosis mouse model was established. The mice from the model group were randomly divided into three subgroups: i) Negative control, ii) hepatocyte growth factor and iii) YGD. The overall health, liver function and histological alterations were monitored...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28035060/interleukin-17a-promotes-tongue-squamous-cell-carcinoma-metastasis-through-activating-mir-23b-versican-pathway
#19
Tai Wei, Xin Cong, Xiang-Ting Wang, Xiao-Jian Xu, Sai-Nan Min, Peng Ye, Xin Peng, Li-Ling Wu, Guang-Yan Yu
Interleukin-17A (IL-17A), a proinflammatory cytokine mainly produced by T helper 17 cells, exerts protumor or antitumor effects in different cancer entities. However, the exact role of IL-17A in carcinogenesis and progression of tongue squamous cell carcinoma (TSCC) remains unclear. Here, we found that the levels of IL-17A in serum and tumor samples were significantly increased in TSCC patients and positively correlated with tumor metastasis and clinical stage. Besides, IL-17A enhanced cell migration and invasion in SCC15, a TSCC cell line...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28031326/myocyte-derived-hsp90-modulates-collagen-upregulation-via-biphasic-activation-of-stat-3-in-fibroblasts-during-cardiac-hypertrophy
#20
Ritwik Datta, Trisha Bansal, Santanu Rana, Kaberi Datta, Ratul Datta Chaudhuri, Mamta Chawla-Sarkar, Sagartirtha Sarkar
Signal transducer and activator of transcription-3 (STAT-3) mediated signalling in relation to upregulated collagen expression in fibroblasts is well defined during cardiac hypertrophy. Recent findings from our laboratory have identified Heat shock protein 90 (Hsp90) as a critical modulator of fibrotic signalling in cardiac fibroblasts in this disease milieu. The present study was therefore intended to analyze the role of Hsp90 in the STAT-3 mediated collagen upregulation process. Our data revealed a significant difference between in vivo and in vitro results pointing to a possible involvement of myocyte-fibroblast crosstalk in this process...
December 28, 2016: Molecular and Cellular Biology
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