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Tumor necrotic factor

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https://www.readbyqxmd.com/read/28923326/effects-of-sulphasalazine-in-cerebral-ischemia-reperfusion-injury-in-rat
#1
Cansel Cetin, Ahmet Melih Erdogan, Gungor Cagdas Dincel, Bulent Bakar, Ucler Kisa
BACKGROUND: Management of cerebral ischemia/reperfusion (I/R) injury is still difficult process today. AIMS OF THE STUDY: Aim of present study was to investigate therapeutic properties of sulfasalazine in cerebral transient I/R injury in rat. METHODS: Except Control group (n = 5), 20 Wistar albino rats were allocated for acute and chronic stage investigation of I/R injury, and temporary aneurysm clips were attempted to both internal carotid arteries for thirty min...
April 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28835865/primitive-neuroectodermal-tumor-and-wegener-s-granulomatosis-of-the-kidney-a-curious-combination-of-two-rare-entities
#2
Rugvedita Parakh, Satyajeet Parakh, Maria Tretiakova
Wegener's granulomatosis (WG) is characterized by necrotizing polyangiitis involving the respiratory tract and kidneys. It causes segmental necrotizing glomerulonephritis in the kidneys. In rare cases, a renal pseudotumor may be seen because of the granulomatous process. Association of WG with renal malignancy, however, is very uncommon. We report a case of a patient who presented several years after being treated for WG with malignant hypertension and an infiltrating mass in the right kidney. The histopathology of radical nephrectomy specimen showed presence of primitive neuroectodermal tumor (PNET)...
2017: Case Reports in Urology
https://www.readbyqxmd.com/read/28832998/dynamic-monitoring-of-p53-translocation-to-mitochondria-for-the-analysis-of-specific-inhibitors-using-luciferase-fragment-complementation
#3
Natsumi Noda, Raheela Awais, Robert Sutton, Muhammad Awais, Takeaki Ozawa
Intracellular protein translocation plays a pivotal role in regulating complex biological processes, including cell death. The tumor suppressor p53 is a transcription factor activated by DNA damage and oxidative stress that also translocates from the cytosol into the mitochondrial matrix to facilitate necrotic cell death. However, specific inhibitors of p53 mitochondrial translocation are largely unknown. To explore the inhibitors of p53, we developed a bioluminescent probe to monitor p53 translocation from cytosol to mitochondria using luciferase fragment complementation assays...
August 19, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28831662/pituitary-apoplexy-and-rivaroxaban
#4
S Ly, A Naman, B Chaufour-Higel, M Patey, C Arndt, B Delemer, C F Litre
Pituitary apoplexy (PA), defined by the occurrence of a massive hemorrhagic necrotic rearrangement within a pituitary adenoma, is rare. Its occurrence can be associated with certain risk factors, including anticoagulation. We report the first case of PA with rivaroxaban which is one of the new oral anticoagulants: a 73 year-old patient presenting with severe headache and visual field deterioration. Surgery was performed. Radiotherapy treatment was decided three months after surgery because of tumor residue.
August 22, 2017: Pituitary
https://www.readbyqxmd.com/read/28823025/nanomedicine-associated-with-photodynamic-therapy-for-glioblastoma-treatment
#5
REVIEW
Leonardo B de Paula, Fernando L Primo, Antonio C Tedesco
Glioblastoma, also known as glioblastoma multiforme (GBM), is the most recurrent and malignant astrocytic glioma found in adults. Biologically, GBMs are highly aggressive tumors that often show diffuse infiltration of the brain parenchyma, making complete surgical resection difficult. GBM is not curable with surgery alone because tumor cells typically invade the surrounding brain, rendering complete resection unsafe. Consequently, present-day therapy for malignant glioma remains a great challenge. The location of the invasive tumor cells presents several barriers to therapeutic delivery...
August 19, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28814802/relationship-between-necrotic-patterns-in-glioblastoma-and-patient-survival-fractal-dimension-and-lacunarity-analyses-using-magnetic-resonance-imaging
#6
Shuai Liu, Yinyan Wang, Kaibin Xu, Zheng Wang, Xing Fan, Chuanbao Zhang, Shaowu Li, Xiaoguang Qiu, Tao Jiang
Necrosis is a hallmark feature of glioblastoma (GBM). This study investigated the prognostic role of necrotic patterns in GBM using fractal dimension (FD) and lacunarity analyses of magnetic resonance imaging (MRI) data and evaluated the role of lacunarity in the biological processes leading to necrosis. We retrospectively reviewed clinical and MRI data of 95 patients with GBM. FD and lacunarity of the necrosis on MRI were calculated by fractal analysis and subjected to survival analysis. We also performed gene ontology analysis in 32 patients with available RNA-seq data...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811996/experimental-method-and-statistical-analysis-to-fit-tumor-growth-model-using-spect-ct-imaging-a-preclinical-study
#7
Ivan Hidrovo, Joyoni Dey, Megan E Chesal, Dmytro Shumilov, Narayan Bhusal, J Michael Mathis
BACKGROUND: Over the last decade, several theoretical tumor-models have been developed to describe tumor growth. Oncology imaging is performed using various modalities including computed tomography (CT), magnetic resonance imaging (MRI), single-photon emission computed tomography (SPECT) and fluorodeoxyglucose-positron emission tomography (FDG-PET). Our goal is to extract useful, otherwise hidden, quantitative biophysical parameters (such as growth-rate, tumor-necrotic-factor, etc.) from these serial images of tumors by fitting mathematical models to images...
June 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28794644/the-rank-rankl-opg-system-in-tumorigenesis-and-metastasis-of-cancer-stem-cell-potential-targets-for-anticancer-therapy
#8
REVIEW
Mekonnen Sisay, Getnet Mengistu, Dumessa Edessa
The molecular triad involving receptor activator of nuclear factor kβ (RANK)/RANK ligand (RANKL)/osteoprotegerin cytokine system has been well implicated in several physiological and pathological processes including bone metabolism, mammary gland development, regulation of the immune function, tumorigenesis and metastasis of cancer stem cell, thermoregulation, and vascular calcification. However, this review aimed to summarize several original and up-to-date articles focusing on the role of this signaling system in cancer cell development and metastasis as well as potential therapeutic agents targeting any of the three tumor necrotic factor super family proteins and/or their downstream signaling pathways...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28791019/macrophage-inducible-c-type-lectin-as-a-multifunctional-player-in-immunity
#9
REVIEW
Emmanuel C Patin, Selinda Jane Orr, Ulrich E Schaible
The macrophage-inducible C-type lectin (Mincle) is an innate immune receptor on myeloid cells sensing diverse entities including pathogens and damaged cells. Mincle was first described as a receptor for the mycobacterial cell wall glycolipid, trehalose-6,6'-dimycolate, or cord factor, and the mammalian necrotic cell-derived alarmin histone deacetylase complex unit Sin3-associated protein 130. Upon engagement by its ligands, Mincle induces secretion of innate cytokines and other immune mediators modulating inflammation and immunity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28754668/transglutaminase-2-inhibition-reverses-mesenchymal-transdifferentiation-of-glioma-stem-cells-by-regulating-c-ebp%C3%AE-signaling
#10
Jinlong Yin, Young Taek Oh, Jeong-Yub Kim, Sung Soo Kim, Eunji Choi, Tae Hoon Kim, Jun Hee Hong, Nakho Chang, Hee Jin Cho, Jason K Sa, Jeong Cheol Kim, Hyung Joon Kwon, Saewhan Park, Weiwei Lin, Ichiro Nakano, Ho-Shin Gwak, Heon Yoo, Seung-Hoon Lee, Jeongwu Lee, Jong Heon Kim, Soo-Youl Kim, Do-Hyun Nam, Myung-Jin Park, Jong Bae Park
Necrosis is a hallmark of glioblastoma (GBM) and is responsible for poor prognosis and resistance to conventional therapies. However, the molecular mechanisms underlying necrotic microenvironment-induced malignancy of GBM have not been elucidated. Here, we report that transglutaminase 2 (TGM2) is upregulated in the perinecrotic region of GBM and triggered mesenchymal (MES) transdifferentiation of glioma stem cells (GSC) by regulating master transcription factors (TF), such as C/EBPβ, TAZ, and STAT3. TGM2 expression was induced by macrophages/microglia-derived cytokines via NF-κB activation and further degraded DNA damage-inducible transcript 3 (GADD153) to induce C/EBPβ expression, resulting in expression of the MES transcriptome...
July 28, 2017: Cancer Research
https://www.readbyqxmd.com/read/28752230/biological-therapies-for-the-treatment-of-beh%C3%A3-et-s-disease-related-uveitis-beyond-tnf-alpha-blockade-a-narrative-review
#11
REVIEW
Jurgen Sota, Donato Rigante, Giuseppe Lopalco, Bruno Frediani, Rossella Franceschini, Mauro Galeazzi, Florenzo Iannone, Gian Marco Tosi, Claudia Fabiani, Luca Cantarini
Intraocular inflammation is one of the more relevant complications of Behçet's disease (BD), which tends to respond poorly to different medications. The ocular histopathologic changes are basically identical to those occurring in other organs and consist in a necrotizing leukocytoclastic obliterative vasculitis, which is probably immune complex-mediated and affects both arteries and veins of all sizes. There are growing evidences showing the potential role of biologic agents other than anti-tumor necrosis factor (TNF)-α agents in the management of ocular-BD, which have been collected in this review, including interleukin-1 and interleukin-6 blockade, secukinumab, ustekinumab, daclizumab, rituximab, and alemtuzumab...
July 27, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28721163/additive-effects-of-atorvastatin-combined-with-sitagliptin-on-rats-with-myocardial-infarction-a-pilot-study
#12
Xiao Ke, Bin Ke, Xing Wang, Shaoyun Wu, Rongfeng Yang, Chengheng Hu
INTRODUCTION: Atorvastatin and sitagliptin are able to exert cardio-protective effects. However, whether atorvastatin plus sitagliptin could confer additive benefits for rats with myocardial infarction (MI) is unknown. MATERIAL AND METHODS: Forty rats with MI were produced and 37 surviving rats were randomly divided into atorvastatin (10 mg/kg daily, n = 9), sitagliptin (10 mg/kg daily, n = 9), combined (10 mg/kg daily atorvastatin plus 10 mg/kg daily sitagliptin, n = 9), and control groups (3 ml normal saline daily, n = 10)...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28720397/cardioprotective-effect-of-nesfatin-1-against-isoproterenol-induced-myocardial-infarction-in-rats-role-of-the-akt-gsk-3%C3%AE-pathway
#13
Arda Tasatargil, Nilay Kuscu, Selvinaz Dalaklioglu, Dileyra Adiguzel, Ciler Celik-Ozenci, Sebahat Ozdem, Ayse Barutcigil, Sadi Ozdem
The present study was designed to evaluate the cardioprotective effects of nesfatin-1, a novel peptide with anorexigenic properties, in rats with isoproterenol (ISO)-induced myocardial infarction (MI), and to further investigate the role of Akt/GSK-3β signaling pathway in the protective effect of nesfatin-1. To induce MI, ISO was subcutaneously injected into the rats for two consecutive days at a dosage of 85mg/kg/day. ISO-induced myocardial damage was indicated by elevated levels of cardiac specific troponin-T, enhanced myocardial expression of proinflammatory cytokines (interleukin-1β, interleukin-6 and tumor necrosis factor-α), and increased number of cells with apoptotic and necrotic appearance in the myocardial tissue...
July 15, 2017: Peptides
https://www.readbyqxmd.com/read/28717852/elevated-s100a8-protein-expression-in-breast-cancer-cells-and-breast-tumor-stroma-is-prognostic-of-poor-disease-outcome
#14
P Miller, K M Kidwell, D Thomas, M Sabel, J M Rae, D F Hayes, B I Hudson, D El-Ashry, M E Lippman
PURPOSE: Elevated S100A8 expression has been observed in cancers of the bladder, esophagus, colon, ovary, and breast. S100A8 is expressed by breast cancer cells as well as by infiltrating immune and myeloid cells. Here we investigate the association of elevated S100A8 protein expression in breast cancer cells and in breast tumor stroma with survival outcomes in a cohort of breast cancer patients. PATIENTS AND METHODS: Tissue microarrays (TMA) were constructed from breast cancer specimens from 417 patients with stage I-III breast cancer treated at the University of Michigan Comprehensive Cancer Center between 2004 and 2006...
July 17, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28687535/endothelial-nf-%C3%AE%C2%BAb-blockade-abrogates-anca-induced-gn
#15
Mira Choi, Adrian Schreiber, Claudia Eulenberg-Gustavus, Claus Scheidereit, Jan Kamps, Ralph Kettritz
ANCA-associated vasculitis (AAV) is a highly inflammatory condition in which ANCA-activated neutrophils interact with the endothelium, resulting in necrotizing vasculitis. We tested the hypothesis that endothelial NF-κB mediates necrotizing crescentic GN (NCGN) and provides a specific treatment target. Reanalysis of kidneys from previously examined murine NCGN disease models revealed NF-κB activation in affected kidneys, mostly as a p50/p65 heterodimer, and increased renal expression of NF-κB-dependent tumor necrosis factor α (TNF-α)...
July 7, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28673381/biomarkers-of-necrotising-soft-tissue-infections-aspects-of-the-innate-immune-response
#16
Marco Bo Hansen
Necrotising soft tissue infection (NSTI) is a life-threatening and rapidly progressing bacterial infection involving one or more layers of the soft tissue compartments causing necrosis. The amputation and mortality rates remain high despite increased focus on the patients. Timely treatment, including surgical intervention, reduces the risk of severe disability and death. However, the lack of pathognomonic signs impedes early diagnosis and treatment. Moreover, the rarity of the disease makes it difficult to conduct large prospective studies, thus prospective research is almost non-existent in this group of patients...
July 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28658176/circulating-fibrocytes-are-involved-in-inflammation-and-leukocyte-trafficking-in-neonates-with-necrotizing-enterocolitis
#17
Ye Liu, Shang Qingjuan, Zongwei Gao, Chun Deng, Yan Wang, Chunbao Guo
Fibrocytes, ahematopoietic stem cell source of fibroblasts/myofibroblasts, were previously implicated to infiltrate into the intestinal and enhance inflammation.The aims of the present study were to elucidate the role of fibrocytes in necrotizing enterocolitis (NEC) pathogenesis and to explore the mechanisms by which fibrocytes contributed to the inflammatory responses.We investigated circulating and intestinal local fibrocytes from 32 patients with NEC, 8 patients with noninflammatory conditions of the gastrointestinal tract and 12 normal subjects...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28655913/novel-small-peptides-derived-from-vegf125-136-potential-drugs-for-radioactive-diagnosis-and-therapy-in-a549-tumor-bearing-nude-mice
#18
Xiang Zhang, Shibin Feng, Jie Liu, Qianwei Li, Lei Zheng, Laiping Xie, Hongmin Li, Dingde Huang
Vascular endothelial growth factor receptor (VEGFR) is a critical factor in tumor angiogenesis and has been considered a potential target for receptor-mediated radionuclide imaging and therapy. In this study, we identified two peptides (QKRKRKKSRKKH and RKRKRKKSRYIVLS) derived from VEGF125-136 that displayed high binding affinities to VEGFR and strong inhibition of A549 cell growth. (99m)Tc- and (188)Re-labeled peptides displayed high labeling efficiency and favorable stability in saline and human plasma. At the cellular level, the radiolabeled peptides could bind with A549 cells and be internalized via the VEGFR-1-mediated pathway...
June 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28596375/nlrp3-inflammasome-inhibition-by-mcc950-reduces-atherosclerotic-lesion-development-in-apolipoprotein-e-deficient-mice-brief-report
#19
Thomas van der Heijden, Eva Kritikou, Wouter Venema, Janine van Duijn, Peter J van Santbrink, Bram Slütter, Amanda C Foks, Ilze Bot, Johan Kuiper
OBJECTIVE: Inflammasomes are multiprotein complexes, and their activation has been associated with cardiovascular disease. Inflammasome activation leads to secretion of caspase-1 by innate immune cells, resulting in the activation of interleukin-1β. Recently, a potent and selective inhibitor of the NLRP3 inflammasome, MCC950, was described. In this study, we investigated the effect of MCC950 on atherosclerotic lesion development in apoE(-/-) mice. APPROACH AND RESULTS: First, we determined the efficacy of MCC950 in vitro...
August 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28592284/biogenic-selenium-nanoparticles-induce-ros-mediated-necroptosis-in-pc-3-cancer-cells-through-tnf-activation
#20
Praveen Sonkusre, Swaranjit Singh Cameotra
BACKGROUND: Selenium is well documented to inhibit cancer at higher doses; however, the mechanism behind this inhibition varies widely depending on the cell type and selenium species. Previously, we have demonstrated that Bacillus licheniformis JS2 derived biogenic selenium nanoparticles (SeNPs) induce non-apoptotic cell death in prostate adenocarcinoma cell line, PC-3, at a minimal concentration of 2 µg Se/ml, without causing toxicity to the primary cells. However, the mechanism behind its anticancer activity was elusive...
June 7, 2017: Journal of Nanobiotechnology
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