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https://www.readbyqxmd.com/read/27927007/ginsenoside-re-inhibits-osteoclast-differentiation-in-mouse-bone-marrow-derived-macrophages-and-zebrafish-scale-model
#1
Chan-Mi Park, Hye-Min Kim, Dong Hyun Kim, Ho-Jin Han, Haneul Noh, Jae-Hyuk Jang, Soo-Hyun Park, Han-Jung Chae, Soo-Wan Chae, Eun Kyoung Ryu, Sangku Lee, Kangdong Liu, Haidan Liu, Jong-Seog Ahn, Young Ock Kim, Bo-Yeon Kim, Nak-Kyun Soung
Ginsenosides, which are the active materials of ginseng, have biological functions that include anti-osteoporotic effects. Aqueous ginseng extract inhibits osteoclast differentiation induced by receptor activator of NF-kappaB ligand (RANKL). Aqueous ginseng extract produces chromatography peaks characteristic of ginsenosides. Among these peaks, ginsenoside Re is a major component. However, the preventive effects of ginsenoside Re against osteoclast differentiation are not known. We studied the effect of ginsenoside Re on osteoclast differentiation, RANKL induced tartrate-resistant acid phosphatase (TRAP) activity, and formation of multinucleated osteoclasts in vitro...
December 6, 2016: Molecules and Cells
https://www.readbyqxmd.com/read/27926989/targeting-gm-csf-in-epithelial-and-vascular-remodeling-in-experimental-eosinophilic-esophagitis
#2
Eóin N McNamee, Kathryn A Biette, Juliet Hammer, Rachel Harris, Heather Miyazawa, James J Lee, Glenn T Furuta, Joanne C Masterson
BACKGROUND: Eosinophilic esophagitis (EoE) is a chronic antigen-mediated clinicopathologic disease of the esophagus characterized by an eosinophil-predominant inflammatory infiltrate. A clinical hallmark is extensive tissue remodeling including basal zone hyperplasia, fibrosis and angiogenesis. However, the cellular mechanisms responsible for these processes are not fully defined. We hypothesized that targeting GM-CSF (an agonist cytokine linked with eosinophil survival and activation) would be protective in a pre-clinical model of EoE...
December 7, 2016: Allergy
https://www.readbyqxmd.com/read/27926978/potential-blood-biomarkers-in-chronic-spontaneous-urticaria
#3
Pavel Kolkhir, Fiona Andre, Martin K Church, Marcus Maurer, Martin Metz
BACKGROUND: Chronic spontaneous urticaria (CSU) is a mast cell-driven disease that is defined as the recurrence of wheals, angioedema, or both for >6 weeks due to known or unknown causes. As of yet, disease diagnosis is purely clinical. Objective tools are needed to monitor the activity of CSU and the efficacy of treatment. Recently, several reports have suggested that blood parameters may be considered as potential disease-related biomarkers. OBJECTIVE: To review available literature on blood biomarkers for CSU diagnosis, activity monitoring, duration, patient subgroups allocation or response to treatment...
December 7, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27926941/type-1-interferons-and-nk-cells-limit-murine-cytomegalovirus-escape-from-the-lymph-node-subcapsular-sinus
#4
Helen E Farrell, Kimberley Bruce, Clara Lawler, Rhonda D Cardin, Nicholas J Davis-Poynter, Philip G Stevenson
Cytomegaloviruses (CMVs) establish chronic, systemic infections. Peripheral infection spreads via lymph nodes, which are also a focus of host defence. Thus, this is a point at which systemic infection spread might be restricted. Subcapsular sinus macrophages (SSM) captured murine CMV (MCMV) from the afferent lymph and poorly supported its replication. Blocking the type I interferon (IFN-I) receptor (IFNAR) increased MCMV infection of SSM and of the fibroblastic reticular cells (FRC) lining the subcapsular sinus, and accelerated viral spread to the spleen...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27926921/schistosoma-mansoni-infection-can-jeopardize-the-duration-of-protective-levels-of-antibody-responses-to-immunizations-against-hepatitis-b-and-tetanus-toxoid
#5
Diana K Riner, Eric M Ndombi, Jennifer M Carter, Amos Omondi, Nupur Kittur, Emmy Kavere, Harrison K Korir, Briana Flaherty, Diana Karanja, Daniel G Colley
BACKGROUND: Schistosomiasis is a disease of major public health importance in sub-Saharan Africa. Immunoregulation begins early in schistosome infection and is characterized by hyporesponsiveness to parasite and bystander antigens, suggesting that a schistosome infection at the time of immunization could negatively impact the induction of protective vaccine responses. This study examined whether having a Schistosoma mansoni infection at the time of immunization with hepatitis B and tetanus toxoid (TT) vaccines impacts an individual's ability to achieve and maintain protective antibody levels against hepatitis B surface antigen or TT...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27926865/tenascin-c-orchestrates-glioblastoma-angiogenesis-by-modulation-of-pro-and-anti-angiogenic-signaling
#6
Tristan Rupp, Benoit Langlois, Maria M Koczorowska, Agata Radwanska, Zhen Sun, Thomas Hussenet, Olivier Lefebvre, Devadarssen Murdamoothoo, Christiane Arnold, Annick Klein, Martin L Biniossek, Vincent Hyenne, Elise Naudin, Ines Velazquez-Quesada, Oliver Schilling, Ellen Van Obberghen-Schilling, Gertraud Orend
High expression of the extracellular matrix component tenascin-C in the tumor microenvironment correlates with decreased patient survival. Tenascin-C promotes cancer progression and a disrupted tumor vasculature through an unclear mechanism. Here, we examine the angiomodulatory role of tenascin-C. We find that direct contact of endothelial cells with tenascin-C disrupts actin polymerization, resulting in cytoplasmic retention of the transcriptional coactivator YAP. Tenascin-C also downregulates YAP pro-angiogenic target genes, thus reducing endothelial cell survival, proliferation, and tubulogenesis...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27926850/background-suppression-in-imaging-gold-nanorods-through-detection-of-anti-stokes-emission
#7
Aquiles Carattino, Veer I P Keizer, Marcel J M Schaaf, Michel Orrit
Metallic nanoparticles have opened the possibility of imaging, tracking, and manipulating biological samples without time limitations. Their low photoluminescence quantum yield, however, makes them hard to detect under high background conditions. In this study we show that it is possible to image gold nanorods by detecting their anti-Stokes emission under resonant excitation. We show that even in the membrane of a cell containing the fluorescent dye Atto 647N, the signal/background of the anti-Stokes emission can be >10, while it is impossible to image the particles with the Stokes emission...
December 6, 2016: Biophysical Journal
https://www.readbyqxmd.com/read/27926730/integrin-yap-taz-jnk-cascade-mediates-atheroprotective-effect-of-unidirectional-shear-flow
#8
Li Wang, Jiang-Yun Luo, Bochuan Li, Xiao Yu Tian, Li-Jing Chen, Yuhong Huang, Jian Liu, Dan Deng, Chi Wai Lau, Song Wan, Ding Ai, King-Lun Kingston Mak, Ka Kui Tong, Kin Ming Kwan, Nanping Wang, Jeng-Jiann Chiu, Yi Zhu, Yu Huang
The Yorkie homologues YAP (Yes-associated protein) and TAZ (transcriptional coactivator with PDZ-binding motif, also known as WWTR1), effectors of the Hippo pathway, have been identified as mediators for mechanical stimuli. However, the role of YAP/TAZ in haemodynamics-induced mechanotransduction and pathogenesis of atherosclerosis remains unclear. Here we show that endothelial YAP/TAZ activity is regulated by different patterns of blood flow, and YAP/TAZ inhibition suppresses inflammation and retards atherogenesis...
December 7, 2016: Nature
https://www.readbyqxmd.com/read/27926724/new-anti-il-23-drugs-raise-hopes-for-psoriasis-plaque-clearance
#9
Elie Dolgin
No abstract text is available yet for this article.
December 7, 2016: Nature Biotechnology
https://www.readbyqxmd.com/read/27926664/absence-of-serological-rheumatoid-arthritis-biomarkers-in-inflammatory-bowel-disease-patients-with-arthropathies
#10
Sanne J H Van Erp, Marije K Verheul, E W Nivine Levarht, Johan J van der Reijden, Désirée van der Heijde, Floris A van Gaalen, Daniel W Hommes, Gary L Norman, Zakera Shums, Michael Mahler, Hein W Verspaget, Leendert A Trouw, Andrea E van der Meulen-de Jong
OBJECTIVE: Biomarkers that are associated with future progression to rheumatoid arthritis (RA) and joint destruction have been discovered previously in patients with arthralgia. The present study examined these RA biomarkers in inflammatory bowel disease (IBD) patients with arthropathies. PATIENTS AND METHODS: Sera from 155 IBD patients with and 99 IBD patients without arthropathies were analyzed for immunoglobulin (Ig) M rheumatoid factor (RF), IgA-RF, anti-cyclic citrullinated peptide 2, anti-cyclic citrullinated peptide 3...
December 6, 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27926593/cost-effectiveness-of-direct-acting-anti-viral-treatment-in-hepatitis-c-infected-liver-transplant-candidates-with-compensated-cirrhosis-and-hepatocellular-carcinoma
#11
James Salazar, Varun Saxena, James G Kahn, John P Roberts, Neil Mehta, Michael Volk, Jennifer C Lai
BACKGROUND: HCV(+) donors represent an effective strategy to increase liver donor availability to HCV-infected recipients. However, many HCV(+) transplant candidates are now receiving treatment with direct acting anti-virals (DAA) that lower the risk of posttransplant HCV recurrence but could make the patient ineligible for HCV(+) livers. METHODS: We compared pretransplant DAA treatment versus deferred DAA treatment using a cost-effectiveness decision analysis model to estimate incremental cost-effectiveness ratios (ICERs; cost per quality-adjusted life year [QALY] gained) from the societal perspective across a range of HCV(+) liver availability rates...
December 6, 2016: Transplantation
https://www.readbyqxmd.com/read/27926587/anti-programmed-cell-death-protein-1-tolerance-and-efficacy-after-ipilimumab-immunotherapy-observational-study-of-39-patients
#12
Reyhan Amode, Barouyr Baroudjian, Anita Kowal, Majdi Jebali, Clara Allayous, Martine Bagot, Nika Madjlessi, Jennifer Roux, Manuelle Viguier, Nicole Basset Seguin, Raphaël Porcher, Cécile Pagès, Céleste Lebbé
In patients with ipilimumab (IPI)-refractory melanoma, the anti-programmed cell death proteins 1 (PD1s) nivolumab (NIV) and pembrolizumab (PEM) are considered to be a new standard of treatment. Few data are available on anti-PD1 safety in patients who develop IPI-related severe adverse events (AEs) (grade≥3). The aim of this study was to compare the anti-PD1 safety and efficacy in patients with previous severe toxicity to IPI versus in those showing moderate and no previous IPI-related AEs. This single institution-based observational study included all patients treated with anti-PD1 (PEM or NIV) and previously treated with IPI for unresectable stage III or IV melanoma...
December 6, 2016: Melanoma Research
https://www.readbyqxmd.com/read/27926586/hypercapnic-conditions-after-experimental-blunt-chest-trauma-increase-efferocytosis-of-alveolar-macrophages-and-reduce-local-inflammation
#13
Annette Palmer, Michael S J Eichner, Anne Rittlinger, Daniel H Seitz, Florian Gebhard, Markus S Huber-Lang, Ulrike Niesler
Blunt chest trauma induces severe local and systemic inflammatory alterations and an accumulation of apoptotic polymorphonuclear granulocytes (aPMN) in the lungs, frequently followed by bacterial infection. Alveolar macrophages (AM) represent one of the main actors for their clearance. However, little is known regarding regulatory and influencing factors of AM efferocytic and phagocytic activities. In this context, we investigated the influence of impaired gas exchange on AM activity.Male rats underwent blunt chest trauma or sham procedure and aPMN or E...
December 6, 2016: Shock
https://www.readbyqxmd.com/read/27926582/differential-procoagulant-activity-of-microparticles-derived-from-monocytes-granulocytes-platelets-and-endothelial-cells-impact-of-active-tissue-factor
#14
Olga N Shustova, Olga A Antonova, Nina V Golubeva, Svetlana G Khaspekova, Vladimir V Yakushkin, Svetlana A Aksuk, Irina B Alchinova, Mikhail Y Karganov, Alexey V Mazurov
Microparticles released by activated/apoptotic cells exhibit coagulation activity as they express phosphatidylserine and some of them - tissue factor. We compared procoagulant properties of microparticles from monocytes, granulocytes, platelets and endothelial cells and assessed the impact of tissue factor in observed differences. Microparticles were sedimented (20 000g, 30 min) from the supernatants of activated monocytes, monocytic THP-1 cells, granulocytes, platelets and endothelial cells. Coagulation activity of microparticles was examined using plasma recalcification assay...
December 6, 2016: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/27926533/andrographolide-impedes-cancer-stemness-and-enhances-radio-sensitivity-in-oral-carcinomas-via-mir-218-activation
#15
Po-Yu Yang, Pei-Ling Hsieh, Tong Hong Wang, Cheng-Chia Yu, Ming-Yi Lu, Yi-Wen Liao, Tzu-Hsin Lee, Chih-Yu Peng
Current evidence suggests that oral cancer stem cells (OCSCs) possess high tumorigenic and metastatic properties as well as chemo- and radioresistance. In this study, we demonstrated that andrographolide, the main bioactive component in the medicinal plant Andrographis, significantly reduced oncogenicity and restored radio-sensitivity of ALDH1+CD44+ OCSCs. Mechanistic studies showed that andrographolide treatment increased the expression of microRNA-218 (miR-218), leading to the downregulation of Bmi1. We showed that knockdown of miR-218 in ALDH1-CD44- non-OCSCs enhanced cancer stemness, while silencing of Bmi1 significantly counteracted it...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27926520/inhibiting-the-mnk-eif4e-%C3%AE-catenin-axis-increases-the-responsiveness-of-aggressive-breast-cancer-cells-to-chemotherapy
#16
Zhiqiang Li, Yang Sun, Miao Qu, Hongxing Wan, Fang Cai, Peng Zhang
Advanced breast cancer (eg. stage IV) is resistant to chemotherapy. In this work, we identified potentially druggable targets that are critically involved in chemoresistance. We showed that eIF4E is highly phosphorylated at serine 209 in breast cancer patients in response to chemotherapy, which significantly correlated with poorer clinical responses and outcomes. Depletion of eIF4E enhanced the anti-proliferative and pro-apoptotic effects of chemotherapeutic drugs in breast cancer cells. Chemotherapy activated the Wnt/β-catenin signaling in an eIF4E-dependent manner...
December 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27926514/novel-amphiphilic-folic-acid-cholesterol-chitosan-micelles-for-paclitaxel-delivery
#17
Li-Chun Cheng, Yan Jiang, Yu Xie, Lu-Lu Qiu, Qing Yang, Hui-Yi Lu
In order to decrease the toxicity of paclitaxel (PTX) and increase the efficiency, we developed an amphiphilic PTX injection system using a biodegradable and biocompatible polymer synthesized by folic acid, cholesterol, and chitosan (FACC). This FACC-based polymer had a low critical concentration (64.13μg/ml) and could self-assemble in aqueous condition to form nanoscale micelles. The particle sizes of FACC-PTX micelles were 253.2±0.56 nm, the encapsulation efficiency and loading capacity of these FACC-PTX micelles were 65...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27926506/disruption-of-the-association-between-drug-transporter-and-actin-cytoskeleton-abolishes-drug-resistance-in-hypertrophic-scar
#18
Linlin Su, Lanqing Fu, Yan Li, Fangfang Yang, Min Zhang, Dahai Hu
Hypertrophic scar is characterized by the overgrowth of fibroblasts and often considered as a kind of benign skin tumor, thus chemotherapeutic drugs have been used to treat scars. In view of the similarity, this study aims to investigate whether drug resistance in cancer that contributes to the failure of chemotherapy also exists in hypertrophic scar, and what is the possible mechanism. Fibroblasts derived from hypertrophic scar and normal skin tissues were first compared for their resistance to verapamil and etoposide phosphate...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27926505/antitumor-effect-of-combination-of-the-inhibitors-of-two-new-oncotargets-proton-pumps-and-reverse-transcriptase
#19
Luana Lugini, Ilaria Sciamanna, Cristina Federici, Elisabetta Iessi, Enrico Pierluigi Spugnini, Stefano Fais
Tumor therapy needs new approaches in order to improve efficacy and reduce toxicity of the current treatments. The acidic microenvironment and the expression of high levels of endogenous non-telomerase reverse transcriptase (RT) are common features of malignant tumor cells. The anti-acidic proton pump inhibitor Lansoprazole (LAN) and the non-nucleoside RT inhibitor Efavirenz (EFV) have shown independent antitumor efficacy. LAN has shown to counteract drug tumor resistance. We tested the hypothesis that combination of LAN and EFV may improve the overall antitumor effects...
December 3, 2016: Oncotarget
https://www.readbyqxmd.com/read/27926488/blocking-ezh2-methylation-transferase-activity-by-gsk126-decreases-stem-cell-like-myeloma-cells
#20
Delong Zeng, Maoxing Liu, Jingxuan Pan
EZH2 is a critical epigenetic regulator that is deregulated in various types of cancers including multiple myeloma (MM). In the present study, we hypothesized that targeting EZH2 might induce apoptosis in myeloma cells including stem cell-like cells (CSCs). We investigated the effect of EZH2 inhibition on MM cells using a potent inhibitor (GSK126). The results showed that GSK126 effectively abrogated the methylated histone 3 (H3K27me3) level in MM.1S and LP1 cells, and inhibited the number of live cells and colony formation in soft agar of six MM cell lines...
December 2, 2016: Oncotarget
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