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https://www.readbyqxmd.com/read/28525976/the-adaptation-of-colorectal-cancer-cells-when-forming-metastases-in-the-liver-expression-of-associated-genes-and-pathways-in-a-mouse-model
#1
Derya Bocuk, Alexander Wolff, Petra Krause, Gabriela Salinas, Annalen Bleckmann, Christina Hackl, Tim Beissbarth, Sarah Koenig
BACKGROUND: Colorectal cancer (CRC) is the second leading cause of cancer-related death in men and women. Systemic disease with metastatic spread to distant sites such as the liver reduces the survival rate considerably. The aim of this study was to investigate the changes in gene expression that occur on invasion and expansion of CRC cells when forming metastases in the liver. METHODS: The livers of syngeneic C57BL/6NCrl mice were inoculated with 1 million CRC cells (CMT-93) via the portal vein, leading to the stable formation of metastases within 4 weeks...
May 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28509407/il-1%C3%AE-inhibits-osteogenesis-of-human-bone-marrow-derived-mesenchymal-stem-cells-by-activating-foxd3-microrna-496-to-repress-wnt-signaling
#2
Jian Huang, Liang Chen
IL-1β, a major cytokine of pro-inflammatory response, has been implicated in bone loss. However, its effects on mesenchymal progenitor cells-associated bone regeneration remain elusive. Here, we investigated the role of microRNA for the regulation of osteogenesis by IL-1β in human bone marrow-derived mesenchymal stem cells (hBMMSC). Our data suggested homo sapiens (hsa)-miR-496 is induced by IL-1β in hBMMSC and mediates the decreased β-catenin expression. Reporter assays using the 3'-UTR of β-catenin demonstrated sequence-dependent gene suppression with hsa-miR-496...
May 16, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28506911/mangiferin-protects-against
#3
Shorouk M El-Sayyad, Ayman A Soubh, Azza S Awad, Hanan S El-Abhar
AIM: Mangiferin (MF), a xanthonoid from Mangifera indica, possesses anti-inflammatory, immunomodulatory, and potent antioxidant effects; however, its protective effect against mesenteric ischemia/reperfusion (I/R)-induced liver injury has not been fully clarified. The study was designed to assess the possible mechanism of action of MF against mesenteric I/R model. MAIN METHODS: Male Wister rats were treated with MF (20mg/kg, i.p) or the vehicle for 3 days before I/R, which was induced by clamping the superior mesenteric artery for 30minutes followed by declamping for 60minutes...
May 12, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28467491/the-gene-expression-profile-of-a-drug-metabolism-system-and-signal-transduction-pathways-in-the-liver-of-mice-treated-with-tert-butylhydroquinone-or-3-3-tert-butyl-4-hydroxyphenyl-propylthiosulfonate-of-sodium
#4
Alexandra B Shintyapina, Valentin A Vavilin, Olga G Safronova, Vyacheslav V Lyakhovich
Tert-butylhydroquinone (tBHQ) is a highly effective phenolic antioxidant used in edible oils and fats in foods as well as in medicines and cosmetics. TBHQ has been shown to have both chemoprotective and carcinogenic effects. Furthermore, it has potential anti-inflammatory, antiatherogenic, and neuroprotective activities. TBHQ induces phase II detoxification enzymes via the Keap1/Nrf2/ARE mechanism, which contributes to its chemopreventive functions. Nonetheless, there is growing evidence that biological effects of tBHQ may be mediated by Nrf2-independent mechanisms related to various signaling cascades...
2017: PloS One
https://www.readbyqxmd.com/read/28466138/a-translational-approach-from-an-animal-model-identifies-cd80-as-a-candidate-gene-for-the-study-of-bone-phenotypes-in-postmenopausal-women
#5
L Panach, E Serna, J J Tarín, A Cano, M Á García-Pérez
This study represented a translational study that first compared gene expression of B cells of BM from ovariectomized and control mice, and then analyzed some of the differentially expressed genes in women. Results showed novel genetic associations with bone phenotypes and points to the CD80 gene as relevant in postmenopausal bone loss. INTRODUCTION: Osteoporosis is a multifactorial disease with a strong genetic component. However, to date, research into osteoporosis has only been able to explain a small part of its heritability...
May 2, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28459386/linking-wnt-signaling-to-mucosal-inflammation
#6
Rita Costa, Melanie Königshoff
No abstract text is available yet for this article.
May 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28455497/decreased-circulating-levels-of-dickkopf-1-in-patients-with-exudative-age-related-macular-degeneration
#7
Fangfang Qiu, Zhen Liu, Yueping Zhou, Jia He, Songjian Gong, Xue Bai, Yingxia Zeng, Zuguo Liu, Jian-Xing Ma
Aberrant activation of the Wnt/β-catenin signaling pathway plays a pathogenic role in retinal inflammation and neovascularization. Here, we investigated whether circulating levels of Dickkopf-1 (DKK-1), a specific inhibitor of this pathway, are altered in patients with exudative age-related macular degeneration (AMD). Plasma was obtained from 128 patients with exudative AMD, 46 patients with atrophic AMD and 111 healthy controls. DKK-1 levels in plasma were measured using ELISA, and data analyzed with one-way ANOVA, logistic regression analysis and receiver-operating characteristic analysis (ROC)...
April 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28453961/diabetic-nephropathy-new-insights-into-established-therapeutic-paradigms-and-novel-molecular-targets
#8
REVIEW
Dilip Sharma, Pallab Bhattacharya, Kiran Kalia, Vinod Tiwari
Diabetic nephropathy is one of the most prevalent microvascular complication in patients suffering from diabetes and is reported to be the major cause of renal failure when compared to any other kidney disease. Currently, available therapies provide only symptomatic relief and unable to treat the underlying pathophysiology of diabetic nephropathy. This review will explore new insights into the established therapeutic paradigms targeting oxidative stress, inflammation and endoplasmic reticulum stress with the focus on recent clinical developments...
April 13, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28427524/kallistatin-suppresses-cancer-development-by-multi-factorial-actions
#9
REVIEW
Julie Chao, Pengfei Li, Lee Chao
Kallistatin was first identified in human plasma as a tissue kallikrein-binding protein and a serine proteinase inhibitor. Kallistatin via its two structural elements regulates differential signaling cascades, and thus a wide spectrum of biological functions. Kallistatin's active site is essential for: inhibiting tissue kallikrein's activity; stimulating endothelial nitric oxide synthase and sirtuin 1 expression and activation; and modulating the synthesis of the microRNAs, miR-34a, miR-21 and miR-203. Kallistatin's heparin-binding site is crucial for antagonizing the signaling pathways of vascular endothelial growth factor, tumor necrosis factor-α, Wnt, transforming growth factor-β and epidermal growth factor...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28426873/high-fat-diet-induced-leptin-and-wnt-expression-rna-sequencing-and-pathway-analysis-of-mouse-colonic-tissue-and-tumors
#10
Harrison M Penrose, Sandra Heller, Chloe Cable, Hani Nakhoul, Melody Baddoo, Erik Flemington, Susan E Crawford, Suzana D Savkovic
Obesity, an immense epidemic affecting approximately half a billion adults, has doubled in prevalence in the last several decades. Epidemiological data support that obesity, due to intake of a high-fat, western diet, increases the risk of colon cancer; however, the mechanisms underlying this risk remain unclear. Here, utilizing next generation RNA sequencing, we aimed to determine the high-fat diet (HFD) mediated expression profile in mouse colon and the azoxymethane/dextran sulfate sodium model of colon cancer...
March 1, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28418908/plasma-protein-profiling-in-patients-undergoing-coronary-artery-bypass-grafting-surgery-and-clinical-significance
#11
Zhi-Peng Guo, Hai-Tao Hou, Rui Jing, Zhen-Guo Song, Xiao-Cheng Liu, Guo-Wei He
This study was designed to identify the protein profiling in patients with triple vessel coronary artery disease (CAD) undergoing CABG, in order to detect CAD-related differential proteins in these patients. CABG patients with triple vessel disease with/without left main stenosis (n =160) were compared to normal coronary angiographic subjects (n =160). Plasma samples of 20 males and 20 females in each group were analyzed with iTRAQ technique. ELISA test was used to test the chosen proteins from iTRAQ results in plasma samples from a new cohort of the CABG group (n=120, male/femal=61/59) and control (n =120, male/female=60/60)...
March 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414804/cyclosporine-a-alters-expression-of-renal-micrornas-new-insights-into-calcineurin-inhibitor-nephrotoxicity
#12
Jennifer L Gooch, Clayton King, Cynthia E Francis, Paul S Garcia, Yun Bai
Calcineurin inhibitors are powerful immunosuppressants that revolutionized organ transplantation. However, non-immune effects of the calcineurin inhibitor, such as cyclosporine A (CsA), have significantly hindered their use. Specifically, nephrotoxicity, which is associated with tubulointerstitial fibrosis, inflammation, and podocyte damage, affects up to half of all transplant patients. Calcineurin is involved in many aspects of kidney development and function; therefore, mechanisms of CsA-induced nephrotoxicity are complex and not yet fully understood...
2017: PloS One
https://www.readbyqxmd.com/read/28407733/the-kr%C3%A3-ppel-like-factor-9-cistrome-in-mouse-hippocampal-neurons-reveals-predominant-transcriptional-repression-via-proximal-promoter-binding
#13
Joseph R Knoedler, Arasakumar Subramani, Robert J Denver
BACKGROUND: Krüppel-like factor 9 (Klf9) is a zinc finger transcription factor that functions in neural cell differentiation, but little is known about its genomic targets or mechanism of action in neurons. RESULTS: We used the mouse hippocampus-derived neuronal cell line HT22 to identify genes regulated by Klf9, and we validated our findings in mouse hippocampus. We engineered HT22 cells to express a Klf9 transgene under control of the tetracycline repressor, and used RNA sequencing to identify genes modulated by Klf9...
April 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28402277/the-influence-of-tumor-necrosis-factor-%C3%AE-on-the-tumorigenic-wnt-signaling-pathway-in-human-mammary-tissue-from-obese-women
#14
Agathe Roubert, Kelly Gregory, Yuyang Li, Anna C Pfalzer, Jinchao Li, Sallie S Schneider, Richard J Wood, Zhenhua Liu
Epidemiological studies have convincingly suggested that obesity is an important risk factor for postmenopausal breast cancer, but the mechanisms responsible for this relationship are still not fully understood. We hypothesize that obesity creates a low-grade inflammatory microenvironment, which stimulates Wnt-signaling and thereby promotes the development of breast cancer. To test this hypothesis, we evaluated the correlations between expression of multiple inflammatory cytokines and Wnt pathway downstream genes in mammary tissues from women (age ≥ 50) undergoing reduction mammoplasty...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28396299/plasma-cytokine-profiling-to-predict-susceptibility-to-acute-mountain-sickness
#15
Hui Lu, Rong Wang, Wenbin Li, Hua Xie, Chang Wang, Ying Hao, Yuhuan Sun, Zhengping Jia
Extensive studies have been performed on acute mountain sickness (AMS), but biomarkers predicting AMS are lacking. Presently, the mainstay methods to identify AMS biomarkers include proteomic and genetic methods at high altitudes or in hypoxic simulated chambers. In the present study, we compared plasma cytokine profiles between AMS-susceptible individuals and AMS-resistant individuals at low altitude by cytokine array analysis. In total, 75 differentially expressed cytokines were identified between AMS-susceptible individuals and AMS-resistant individuals, most involved in inflammation...
November 1, 2016: European Cytokine Network
https://www.readbyqxmd.com/read/28371892/blocking-mir155hg-mir-155-axis-inhibits-mesenchymal-transition-in-glioma
#16
Xuechao Wu, Yingyi Wang, Tianfu Yu, Er Nie, Qi Hu, Weining Wu, Tongle Zhi, Kuan Jiang, Xiefeng Wang, Xiaojie Lu, Hailin Li, Ning Liu, Junxia Zhang, Yongping You
Background.: MIR155 host gene (MIR155HG) is a long noncoding RNA that has been considered as the primary micro (mi)RNA of miR-155. MIR155HG plays an essential role in hematopoiesis, inflammation, and tumorigenesis. Our study investigated the clinical significance, biological function, mechanisms, and small-molecule inhibitors of the MIR155HG/miR-155 axis in glioma. Methods.: We analyzed the expression of the MIR155HG/miR-155 axis and the correlation with glioma grade and patient survival using 2 different glioma gene expression datasets...
March 24, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28371601/attenuation-of-focal-adhesion-kinase-reduces-lipopolysaccharide-induced-inflammation-injury-through-inactivation-of-the-wnt-and-nf-%C3%AE%C2%BAb-pathways-in-a549-cells
#17
D Bai, S Cong, L P Zhu
Overall analysis and understanding of mechanisms are of great importance for treatment of infantile pneumonia due to its high morbidity and mortality worldwide. In this study, we preliminarily explored the function and mechanism of focal adhesion kinase (FAK) in regulation of inflammatory response induced by lipopolysaccharides in A549 cells. Flow cytometry, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, quantitative reverse transcription polymerase chain reaction, and Western blot analysis were used to explore the correlation of FAK expression with cell apoptosis, viability, and the inflammatory cytokine activity in A549 cells...
April 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28357509/downregulation-of-lizard-immuno-genes-in-the-regenerating-tail-and-myogenes-in-the-scarring-limb-suggests-that-tail-regeneration-occurs-in-an-immuno-privileged-organ
#18
Nicola Vitulo, Luisa Dalla Valle, Tatjana Skobo, Giorgio Valle, Lorenzo Alibardi
Amputated tails of lizards regenerate while limbs form scars which histological structure is very different from the original organs. Lizards provide useful information for regenerative medicine and some hypotheses on the loss of regeneration in terrestrial vertebrates. Analysis of tail and limb transcriptomes shows strong downregulation in the tail blastema for immunoglobulins and surface B and T receptors, cell function, and metabolism. In contrast, in the limb blastema genes for myogenesis, muscle and cell function, and extracellular matrix deposition but not immunity are variably downregulated...
March 29, 2017: Protoplasma
https://www.readbyqxmd.com/read/28357477/wnt5a-is-elevated-in-heart-failure-and-affects-cardiac-fibroblast-function
#19
Aurelija Abraityte, Leif E Vinge, Erik T Askevold, Tove Lekva, Annika E Michelsen, Trine Ranheim, Katrine Alfsnes, Arnt Fiane, Svend Aakhus, Ida G Lunde, Christen P Dahl, Pål Aukrust, Geir Christensen, Lars Gullestad, Arne Yndestad, Thor Ueland
Wnt signaling is dysregulated in heart failure (HF) and may promote cardiac hypertrophy, fibrosis, and inflammation. Blocking the Wnt ligand Wnt5a prevents HF in animal models. However, the role of Wnt5a in human HF and its functions in cardiac cells remain unclear. Here, we investigated Wnt5a regulation in HF patients and its effects on primary mouse and human cardiac fibroblasts. Serum Wnt5a was elevated in HF patients and associated with hemodynamic, neurohormonal, and clinical measures of disease severity...
March 30, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28355606/use-of-an-osteoblast-overload-damage-model-to-probe-the-effect-of-icariin-on-the-proliferation-differentiation-and-mineralization-of-mc3t3-e1-cells-through-the-wnt-%C3%AE-catenin-signalling-pathway
#20
Yingjie Liu, Lulu Huang, Baohui Hao, Hao Li, Shuanglong Zhu, Qiangsong Wang, Ruixin Li, Yunqiang Xu, Xizheng Zhang
BACKGROUND/AIMS: Mechanical loading plays an important role in the regulation of bone mass. However, bone cells are not always under physiological stress. In some cases, bone tissue is subjected to an overloaded mechanical environment. For example, a person who is weight training and a stevedore often experience bone pain, inflammation and other bone fatigue damage symptoms. Icariin is the major ingredient of Herba epimedii, which has been widely used for the treatment of bone injury in traditional Chinese medicine, but its mechanism remains unknown...
2017: Cellular Physiology and Biochemistry
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