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https://www.readbyqxmd.com/read/29148537/adenomatoid-tumors-of-the-male-and-female-genital-tract-are-defined-by-traf7-mutations-that-drive-aberrant-nf-kb-pathway-activation
#1
Benjamin Goode, Nancy M Joseph, Meredith Stevers, Jessica Van Ziffle, Courtney Onodera, Eric Talevich, James P Grenert, Iwei Yeh, Boris C Bastian, Joanna J Phillips, Karuna Garg, Joseph T Rabban, Charles Zaloudek, David A Solomon
Adenomatoid tumors are the most common neoplasm of the epididymis, and histologically similar adenomatoid tumors also commonly arise in the uterus and fallopian tube. To investigate the molecular pathogenesis of these tumors, we performed genomic profiling on a cohort of 31 adenomatoid tumors of the male and female genital tracts. We identified that all tumors harbored somatic missense mutations in the TRAF7 gene, which encodes an E3 ubiquitin ligase belonging to the family of tumor necrosis factor receptor-associated factors (TRAFs)...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29137729/the-shear-wave-elastic-modulus-and-the-increased-nuclear-factor-kappa-b-nf-kb-p65-and-cyclooxygenase-2-cox-2-expression-in-the-area-of-myofascial-trigger-points-activated-in-a-rat-model-by-blunt-trauma-to-the-vastus-medialis
#2
Hengyong Lv, Zhen Li, Tiantian Hu, Yuexiang Wang, Jinpeng Wu, Yingxin Li
We aimed to elucidate the increased inflammatory cytokines expression such as nuclear factor kappa B (NF-kB/p65), cyclooxygenase-2 (COX-2), and voltage-gated calcium channels (VGCC) in the area of activated myofascial trigger points (MTrPs) in a rat model by blunt trauma to the vastus medialis and to evaluate the feasibility of a quantitative analysis of muscle elastic modulus using shear wave elastography (SWE). Twelve 7-week-old male SD rats were divided into normal (NM, n = 6) and model groups (MO, n = 6)...
November 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29132130/effect-of-huagantongluofang-a-chinese-traditional-medicine-in-hepatic-fibrogenesis-in-a-mouse-model-of-biliary-cirrhosis
#3
Ji Xuan, Wei Wen, Yong Wang, Feng Wang, Hua-Bing Xu, Mei Shao, Ya Yang, Yao-Zhou Tian
BACKGROUND: Biliary cirrhosis (BC) is a chronic cholestatic liver disease, in which hepatic fibrosis is an early symptom. This study aimed to identify the biological function and the therapeutic effect of a Chinese traditional medicine, HuaGanTongLuoFang (HGTLF), in a mouse model of BC. METHODS: The mice (n = 72) were randomly divided into a sham group (n =12) and BC group (n = 60). The animals in the BC group were then randomly divided into five groups (n = 12 in each) and treated with three different doses of HGTLF, ureodeoxycholic acid (UDCA), or normal saline (the model group)...
November 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29118048/rank-rewires-energy-homeostasis-in-lung-cancer-cells-and-drives-primary-lung-cancer
#4
Shuan Rao, Verena Sigl, Reiner Alois Wimmer, Maria Novatchkova, Alexander Jais, Gabriel Wagner, Stephan Handschuh, Iris Uribesalgo, Astrid Hagelkruys, Ivona Kozieradzki, Luigi Tortola, Roberto Nitsch, Shane J Cronin, Michael Orthofer, Daniel Branstetter, Jude Canon, John Rossi, Manolo D'Arcangelo, Johan Botling, Patrick Micke, Linnea La Fleur, Karolina Edlund, Michael Bergqvist, Simon Ekman, Thomas Lendl, Helmut Popper, Hiroshi Takayanagi, Lukas Kenner, Fred R Hirsch, William Dougall, Josef M Penninger
Lung cancer is the leading cause of cancer deaths. Besides smoking, epidemiological studies have linked female sex hormones to lung cancer in women; however, the underlying mechanisms remain unclear. Here we report that the receptor activator of nuclear factor-kB (RANK), the key regulator of osteoclastogenesis, is frequently expressed in primary lung tumors, an active RANK pathway correlates with decreased survival, and pharmacologic RANK inhibition reduces tumor growth in patient-derived lung cancer xenografts...
November 8, 2017: Genes & Development
https://www.readbyqxmd.com/read/29115455/dioscin-inhibits-ischemic-stroke%C3%A2-induced-inflammation-through-inhibition-of-the-tlr4-myd88-nf%C3%A2-%C3%AE%C2%BAb-signaling-pathway-in-a-rat-model
#5
Shilin Zhu, Siyuan Tang, Feng Su
Diosgenin, as an essential natural steroidal saponin, can be extracted from numerous sources, primarily from fenugreek. It is an important raw material for the synthesis of steroid hormone drugs. It exhibits antitumor, anti‑inflammatory, antioxidation and several other significant pharmacologic actions, and is of high pharmaceutical value. In the present study, the activities and underlying mechanisms of dioscin in the inhibition of ischemic stroke in rats were investigated. Inflammatory responses wer analyzed using ELISA kits and caspase‑3 and caspase‑9 activity was analyzed using Caspase‑3 and caspase‑9 activity kits...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29112935/histone-deacetylase-6-inhibitor-acy-1215-protects-against-experimental-acute-liver-failure-by-regulating-the-tlr4-mapk-nf-%C3%AE%C2%BAb-pathway
#6
Wen-Bin Zhang, Hai-Yue Zhang, Fang-Zhou Jiao, Lu-Wen Wang, Hong Zhang, Zuo-Jiong Gong
Histone deacetylase 6 (HDAC6) is considered a new target for anticancer, anti-inflammatory, and neurodegenerative treatment. ACY-1215 is a selective histone deacetylase 6 inhibitor, and it has been recognized as a potential anticancer and anti-inflammation drug. The aim of our study was to investigate whether ACY-1215 has protective effects on acute liver failure (ALF) in mice and explore its potential mechanism. Male C57/BL6 mice were divided into normal, model, and ACY-1215 groups. ACY-1215 (25mg/kg) and same amounts of saline were given to mice...
November 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29110956/activation-inhibitors-of-nuclear-factor-kappa-b-protect-neurons-against-the-nmda-induced-damage-in-the-rat-retina
#7
Kenji Sakamoto, Tatsuya Okuwaki, Hiroko Ushikubo, Asami Mori, Tsutomu Nakahara, Kunio Ishii
We reported that high-mobility group Box-1 (HMGB1) was involved in excitoneurotoxicity in the retina. HMGB1 is known to activate nuclear factor kappa B (NF-κB). However, the role of NF-κB in excitotoxicity is still controversial. Here, we demonstrated that NF-κB activation induced by NMDA led to the retinal neurotoxicity. Male Sprague-Dawley rats were used, and NMDA (200 nmol/eye) and bovine HMGB1 (15 μg/eye) were intravitreally injected. Triptolide (500 pmol/eye), BAY 11-7082 (500 pmol/eye), and IMD-0354 (7...
September 29, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29105627/macrophage-related-cytokine-expressions-in-depression-mouse-model-induced-by-chronic-unpredictable-mild-stress
#8
Shoulian Zhu, Lejing Li, Ying Li, Wenyuan Cao
Depression is characterized by mental retardation, interest blank, hypoactivity, anxiety, appetite loss, sexual dysfunction, sleep disorders and other symptoms. The incidence of depressed patients has demonstrated an upward trend in recent years. Antidepressant drugs are commonly used in modern medicine, but they have the side effect of drug resistance. This study aims to explore the effect of acupuncture stimulation on expressions of macrophage-related cytokines in mice with depression induced by chronic unpredictable mild stress (CUMS), and to explore the underlying immunological mechanism...
September 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29100036/nafamostat-mesilate-a-serine-protease-inhibitor-suppresses-interferon-gamma-induced-up-regulation-of-programmed-cell-death-ligand-1-in-human-cancer-cells
#9
Sadamu Homma, Kazumi Hayashi, Kosaku Yoshida, Yukiko Sagawa, Yuko Kamata, Masaki Ito
Programmed cell death ligand-1 (PD-L1) plays a pivotal role in the suppression of antitumour immunity by binding to programmed cell death-1 (PD-1) on tumouricidal cytotoxic T lymphocytes (CTLs), rendering them inactive. As blockade of PD-1/PD-L1 interaction by the monoclonal antibodies induced effective T cell-mediated antitumour response, suppression of PD-L1 expression in tumour cells by the chemical agent might contribute to treatment against malignant tumours. Nafamostat mesilate (NM), a serine protease inhibitor that is frequently used in the clinic, potently suppressed interferon-gamma (IFN-gamma)-induced up-regulation of PD-L1 in cultured human lung cancer cells (HLC-1) at both the messenger RNA (mRNA) and protein levels...
October 28, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29080842/enhanced-b-raf-mediated-nrf2-gene-transcription-and-hats-mediated-nrf2-protein-acetylation-contributes-to-abcc1-mediated-chemoresistance-and-glutathione-mediated-survival-in-acquired-topoisomerase-ii-poison-resistant-cancer-cells
#10
Huang-Hui Chen, Hsin-Huei Chang, Jang-Yang Chang, Ya-Chu Tang, Yung-Chi Cheng, Li-Mei Lin, Shu-Ying Cheng, Chih-Hsiang Huang, Man-Wu Sun, Chiung-Tong Chen, Ching-Chuan Kuo
Nuclear factor erythroid-2-related factor 2 (NRF2) mainly regulates transcriptional activation through antioxidant-responsive elements (AREs) present in the promoters of NRF2 target genes. Recently, we found that NRF2 was overexpressed in a KB-derived drug-resistant cancer cell panel. In this panel, KB-7D cells, which show acquired resistance to topoisomerase II (Top II) poisons, exhibited the highest NRF2 activation. To investigate whether NRF2 directly contributed to acquired resistance against Top II poisons, we manipulated NRF2 by genetic and pharmacological approaches...
November 2, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29079517/cathepsin-b-mediated-activation-of-trypsinogen-in-endocytosing-macrophages-increases-severity-of-pancreatitis-in-mice
#11
Matthias Sendler, Frank-Ulrich Weiss, Janine Golchert, Georg Homuth, Cindy van den Brandt, Ujjwal M Mahajan, Lars-Ivo Partecke, Paula Döring, Ilya Gukovsky, Anna S Gukovskaya, Preshit R Wagh, Markus M Lerch, Julia Mayerle
BACKGROUND & AIMS: Acute pancreatitis is characterized by premature intracellular activation of digestive proteases within pancreatic acini and a consecutive systemic inflammatory response. We investigated how these processes interact during severe pancreatitis in mice. METHODS: Pancreatitis was induced in C57Bl/6 wild-type (control), cathepsin B-knockout, and cathepsin L-knockout mice by partial pancreatic duct ligation with supramaximal caerulein injection, or by repetitive supramaximal caerulein injections alone...
October 24, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29075112/effect-of-inhibitors-of-endocytosis-and-nf-kb-signal-pathway-on-folate-conjugated-nanoparticle-endocytosis-by-rat-kupffer-cells
#12
Hongbo Tang, Hongli Chen, Yajing Jia, Xiaoyan Liu, Zhaohong Han, Aihua Wang, Qi Liu, Xinlei Li, Xin Feng
The regular accumulation of nanoparticles in the liver makes them hepatotoxic and decreases the circulation time, thus reducing their therapeutic effect. Resolving this problem will be significant in improving bioavailability and reducing side effects. In this study, we reduced the phagocytosis of epirubicin (EPI)-loaded folic acid-conjugated pullulan acetate (FPA/EPI) nanoparticles by Kupffer cells (KCs) through internalization and nuclear factor kappa B (NF-kB) signal pathway inhibitors, thus allowing development of FPA/EPI nanoparticles as a nanodrug delivery system (NDDS) based on our previous study...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29051223/crispr-cas9-based-screening-of-long-noncoding-rnas-lncrnas-in-macrophages-with-an-nf-kappa-b-reporter
#13
Sergio Covarrubias, Elektra K Robinson, Barbara Shapleigh, Apple Vollmers, Solomon Katzman, Nicole Hanley, Nicholas Fong, Michael T McManus, Susan Carpenter
The innate immune system protects against infections by initiating an inducible inflammatory response. NF-kappa B (NF-KB) is one of the critical transcription factors controlling this complex response, but some aspects of its regulation remain unclear. For example, although long noncoding RNAs (lncRNAs) have been shown to critically regulate gene expression, only a fraction of these have been functionally characterized, and the extent to which lncRNAs control NF-KB expression is unknown. Here, we describe the generation of a GFP-based NF-KB reporter system in immortalized murine bone marrow-derived macrophages (iBMDMs)...
October 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29046115/bone-and-the-immune-system
#14
M Neale Weitzmann
Osteoporosis increases fracture risk, a cause of crippling morbidity and mortality. The immunoskeletal interface (ISI) is a centralization of cell and cytokine effectors shared between skeletal and immune systems. Consequently, the immune system mediates powerful effects on bone turnover. Physiologically, B cells secrete osteoprotegerin (OPG), a potent anti-osteoclastogenic factor that preserves bone mass. However, activated T cells and B cells secrete pro-osteoclastogenic factors including receptor activator of Nuclear factor-kappaB (NF-kB) ligand (RANKL), Interleukin (IL)-17A, and tumor necrosis factor (TNF)-α promoting bone loss in inflammatory states such as rheumatoid arthritis...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/29042860/toll-like-receptor-8-is-a-major-sensor-of-group-b-streptococcus-but-not-escherichia-coli-in-human-primary-monocytes-and-macrophages
#15
Birgitta Ehrnström, Kai Sandvold Beckwith, Mariia Yurchenko, Siv Helen Moen, June Frengen Kojen, Germana Lentini, Giuseppe Teti, Jan Kristian Damås, Terje Espevik, Jørgen Stenvik
TLR8 is the major endosomal sensor of degraded RNA in human monocytes and macrophages. It has been implicated in the sensing of viruses and more recently also bacteria. We previously identified a TLR8-IFN regulatory factor 5 (IRF5) signaling pathway that mediates IFNβ and interleukin-12 (IL-12) induction by Staphylococcus aureus and is antagonized by TLR2. The relative importance of TLR8 for the sensing of various bacterial species is however still unclear. We here compared the role of TLR8 and IRF5 for the sensing of Group B Streptococcus (GBS), S...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29037782/paeoniflorin-targets-apoptosis-and-ameliorates-fibrosis-in-murine-schistosomiasis-mansoni-a-novel-insight
#16
Naglaa Fathy Abd El-Aal, Rania Said Hamza, Ola Harb
Schistosomiasis is a chronic helminthic disease causing hepatic fibrosis. Some studies demonstrated direct effect of targeting apoptosis on fibrosis regression. This study is a novel trial of Paeoniflorin (PAE) on S. mansoni induced hepatic fibrosis in murine model compared to Praziquantel (PZQ) evaluating their anti-parasitic and anti-fibrotic properties aiming to discover a new therapy that decrease schistosomiasis morbidity. Thirty two laboratory bred Swiss albino male CD-1 mice were used in this study...
October 14, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/29034737/anti-allergic-inflammatory-effect-of-vanillic-acid-through-regulating-thymic-stromal-lymphopoietin-secretion-from-activated-mast-cells
#17
Hyun-Ja Jeong, Sun-Young Nam, Hee-Yun Kim, Mu Hyun Jin, Mi Hye Kim, Seok Seon Roh, Hyung-Min Kim
Vanillic acid, which is well known as a benzoic acid derivative, has been used as a flavouring agent. Currently, we ascertained the therapeutic potential action of vanillic acid on allergic inflammatory reaction in human mast cell line, HMC-1. Treatment with vanillic acid resulted in a significant decrease in levels of thymic stromal lymphopoietin and pro-inflammatory cytokines compared to phorbol 12-myristate 13-acetate and calcium ionophore A23187 (PMACI)-treated HMC-1 cells. In PMACI-stimulated cells, treatment with vanillic acid also dramatically inhibited activities of caspase-1 and nuclear factor-kB (p65)...
October 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29031765/an-increased-autophagic-flux-contributes-to-the-anti-inflammatory-potential-of-urolithin-a-in-macrophages
#18
Yaw Duah Boakye, Laura Groyer, Elke H Heiss
BACKGROUND: An extract of Phyllanthus muellerianus and its constituent geraniin have been reported to exert anti-inflammatory activity in vivo. However, orally consumed geraniin, an ellagitannin, shows low bioavailability and undergoes metabolization to urolithins by gut microbiota. This study aimed at comparing geraniin and urolithin A with respect to inhibition of M1 (LPS) polarization of murine J774.1 macrophages and shedding more light on possible underlying mechanisms. METHODS: Photometric, fluorimetric as well as luminescence-based assays monitored production of reactive oxygen species (ROS) and nitric oxide (NO), cell viability or reporter gene expression...
January 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29026837/binding-site-analysis-of-the-caenorhabditis-elegans-nr4a-nuclear-receptor-nhr-6-during-development
#19
Brandon Praslicka, Jeremy S Harmson, Joohyun Kim, Vittobai Rashika Rangaraj, Aikseng Ooi, Chris R Gissendanner
Members of the NR4A subfamily of nuclear receptors make up a highly conserved, functionally diverse group of transcription factors implicated in a multitude of cellular processes such as proliferation, differentiation, apoptosis, metabolism and DNA repair. The gene nhr-6, which encodes the sole C. elegans NR4A nuclear receptor homolog, has a critical role in organogenesis and regulates the development of the spermatheca organ system. Our previous work revealed that nhr-6 is required for spermatheca cell divisions in late L3 and early L4 and spermatheca cell differentiation during the mid L4 stage...
2017: Nuclear Receptor Research
https://www.readbyqxmd.com/read/29020879/immunohistochemical-and-quantitative-rt-pcr-methods-to-assess-rank-expression-in-normal-and-neoplastic-canine-mammary-gland
#20
Raquel Sánchez-Céspedes, Yolanda Millan, Silvia Guil-Luna, Jesús García-Macías, Lorella Maniscalco, Selina Iussich, Raffaella De Maria, Juana M de Las Mulas
The receptor activator of nuclear factor-kB ( RANK) gene is found in both human and murine mammary epithelial cells and in human cancer cell lines. We analyzed RANK expression in normal and proliferative canine mammary tissue samples ( n = 47) and cell lines ( n = 10), and identified its expression in epithelial cell populations. The correlation of RANK protein with clinicopathologic parameters was also studied. A double immunohistochemical method using RANK and p63 antibodies was applied to 33 tissue samples to analyze RANK protein expression and its possible co-expression with p63 protein, the latter used to identify myoepithelial (ME) cells (p63-positive) or luminal epithelial (LE) cells (p63-negative)...
October 1, 2017: Journal of Veterinary Diagnostic Investigation
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