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https://www.readbyqxmd.com/read/28938634/a-novel-predictive-model-using-routinely-clinical-parameters-to-predict-liver-fibrosis-in-patients-with-chronic-hepatitis-b
#1
Jian Wang, Xiaomin Yan, Yue Yang, Haiyan Chang, Bei Jia, Xiang-An Zhao, Guangmei Chen, Juan Xia, Yong Liu, Yuxin Chen, Guiyang Wang, Li Wang, Zhaoping Zhang, Weimao Ding, Rui Huang, Chao Wu
OBJECTIVES: Noninvasive models have been established for the assessment of liver fibrosis in patients with chronic hepatitis B(CHB). However, the predictive performance of these established models remains inconclusive. We aimed to develop a novel predictive model for liver fibrosis in CHB based on routinely clinical parameters. RESULTS: Platelets(PLT), the standard deviation of red blood cell distribution width(RDW-SD), alkaline phosphatase(ALP) and globulin were independent predictors of significant fibrosis by multivariable analysis...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938624/addition-of-2-ethylamino-acetonitrile-group-to-nitroxoline-results-in-significantly-improved-anti-tumor-activity-in-vitro-and-in-vivo
#2
Ana Mitrović, Izidor Sosič, Špela Kos, Urša Lampreht Tratar, Barbara Breznik, Simona Kranjc, Bojana Mirković, Stanislav Gobec, Tamara Lah, Gregor Serša, Janko Kos
Lysosomal cysteine peptidase cathepsin B, involved in multiple processes associated with tumor progression, is validated as a target for anti-cancer therapy. Nitroxoline, a known antimicrobial agent, is a potent and selective inhibitor of cathepsin B, hence reducing tumor progression in vitro and in vivo. In order to further improve its anti-cancer properties we developed a number of derivatives using structure-based chemical synthesis. Of these, the 7-aminomethylated derivative (compound 17) exhibited significantly improved kinetic properties over nitroxoline, inhibiting cathepsin B endopeptidase activity selectively...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938563/a-novel-immunotherapy-targeting-mmp-14-limits-hypoxia-immune-suppression-and-metastasis-in-triple-negative-breast-cancer-models
#3
Binbing Ling, Kathleen Watt, Sunandan Banerjee, Daniel Newsted, Peter Truesdell, Jarrett Adams, Sachdev S Sidhu, Andrew W B Craig
Matrix metalloproteinase-14 (MMP-14) is a clinically relevant target in metastatic cancers due to its role in tumor progression and metastasis. Since active MMP-14 is localized on the cell surface, it is amenable to antibody-mediated blockade in cancer, and here we describe our efforts to develop novel inhibitory anti-MMP-14 antibodies. A phage-displayed synthetic humanized Fab library was screened against the extracellular domain of MMP-14 and a panel of MMP14-specific Fabs were identified. A lead antibody that inhibits the catalytic domain of MMP-14 (Fab 3369) was identified and treatment of MDA-MB-231 breast cancer cells with Fab 3369 led to significant loss of extracellular matrix degradation and cell invasion abilities...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938560/inflammatory-factor-tnf-%C3%AE-promotes-the-growth-of-breast-cancer-via-the-positive-feedback-loop-of-tnfr1-nf-%C3%AE%C2%BAb-and-or-p38-p-stat3-hbxip-tnfr1
#4
Xiaoli Cai, Can Cao, Jiong Li, Fuquan Chen, Shuqin Zhang, Bowen Liu, Weiying Zhang, Xiaodong Zhang, Lihong Ye
In the connection between inflammation and cancer development, tumor necrosis factor-alpha (TNF-α) contributes to the tumorigenesis. However, the underlying mechanism remains poorly understood. In this study, we report that TNF-α enhances the growth of breast cancer through up-regulation of oncoprotein hepatitis B X-interacting protein (HBXIP). Our data showed that the levels of TNF-α were positively related to those of HBXIP in clinical breast cancer tissues. Moreover, TNF-α could up-regulate HBXIP in breast cancer cells...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938559/doxorubicin-loaded-platelets-conjugated-with-anti-cd22-mabs-a-novel-targeted-delivery-system-for-lymphoma-treatment-with-cardiopulmonary-avoidance
#5
Peipei Xu, Huaqin Zuo, Rongfu Zhou, Fan Wang, Xu Liu, Jian Ouyang, Bing Chen
B-cell lymphoma accounts for approximately 85% of all adult non-Hodgkin's lymphoma cases. Doxorubicin (DOX) is an indispensable drug for the treatment of non-Hodgkin's lymphoma. However, DOX causes severe cardiotoxicity, which limits its use in conventional treatment strategies. In this study, we developed a novel drug delivery system for lymphoma treatment: DOX-loaded platelets that were conjugated with anti-CD22 monoclonal antibodies (mAbs) (DOX-platelet-CD22). Platelets are bio- and immune-compatible drug carriers that can prolong the circulation time of drugs...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938224/novel-diphenylthiazole-derivatives-with-multi-target-mechanism-synthesis-docking-study-anticancer-and-anti-inflammatory-activities
#6
Ahmed H Abdelazeem, Mohammed T El-Saadi, Eman G Said, Bahaa G M Youssif, Hany A Omar, Samir M El-Moghazy
Over the last few decades, a growing body of studies addressed the anticancer activity of NSAIDs, particularly selective COX-2 inhibitors. However, their exact molecular mechanism is still unclear and is not fully investigated. In this regard, a novel series of compounds bearing a COXs privilege scaffold, diphenyl thiazole, was synthesized and evaluated for their anticancer activity against a panel of cancer cell lines. The most active compounds 10b, 14a,b, 16a, 17a,b and 18b were evaluated in vitro for COX-1/COX-2 inhibitory activity...
September 12, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28938005/recombinant-vaccines-of-a-cd4-t-cell-epitope-promote-efficient-control-of-paracoccidioides-brasiliensis-burden-by-restraining-primary-organ-infection
#7
Rodrigo Assunção Holanda, Julián Esteban Muñoz, Lucas Santos Dias, Leandro Buffoni Roque Silva, Julliana Ribeiro Alves Santos, Sthefany Pagliari, Érica Leandro Marciano Vieira, Tatiane Alves Paixão, Carlos Pelleschi Taborda, Daniel Assis Santos, Oscar Bruña-Romero
Paracoccidioidomycosis (PCM) is an infectious disease endemic to South America, caused by the thermally dimorphic fungi Paracoccidioides. Currently, there is no effective human vaccine that can be used in prophylactic or therapeutic regimes. We tested the hypothesis that the immunogenicity of the immunodominant CD4+ T-cell epitope (P10) of Paracoccidioides brasiliensis gp43 antigen might be significantly enhanced by using a hepatitis B virus-derived particle (VLP) as an antigen carrier. This chimera was administered to mice as a (His)6-purified protein (rPbT) or a replication-deficient human type 5 adenoviral vector (rAdPbT) in an immunoprophylaxis assay...
September 22, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28937624/therapeutic-mechanisms-of-vernonia-amygdalina-delile-in-the-treatment-of-prostate-cancer
#8
William Johnson, Paul B Tchounwou, Clement G Yedjou
Prostate cancer patients have been suffering from limited treatment options due to late diagnosis, poor drug tolerance, and multi-drug resistance to almost all the current drug treatments. Therefore, it is important to seek a new alternative therapeutic medicine that can effectively prevent the disease and even eradicate the progression and metastasis of prostate cancer. Vernonia amygdalina Delile (VAD) is a common edible vegetable in Cameroon that has been used as a traditional medicine for some human diseases...
September 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28937589/viral-cellular-dna-junctions-as-molecular-markers-for-assessing-intra-tumor-heterogeneity-in-cervical-cancer-and-for-the-detection-of-circulating-tumor-dna
#9
Katrin Carow, Mandy Gölitz, Maria Wolf, Norman Häfner, Lars Jansen, Heike Hoyer, Elisabeth Schwarz, Ingo B Runnebaum, Matthias Dürst
The development of cervical cancer is frequently accompanied by the integration of human papillomaviruses (HPV) DNA into the host genome. Viral-cellular junction sequences, which arise in consequence, are highly tumor specific. By using these fragments as markers for tumor cell origin, we examined cervical cancer clonality in the context of intra-tumor heterogeneity. Moreover, we assessed the potential of these fragments as molecular tumor markers and analyzed their suitability for the detection of circulating tumor DNA in sera of cervical cancer patients...
September 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28937442/orally-active-epoxyeicosatrienoic-acid-analogs
#10
William B Campbell, John D Imig, James M Schmitz, John R Falck
Biologically active epoxyeicosatrienoic acid (EET) regioisomers are synthesized from arachidonic acid by cytochrome P450 epoxygenases of endothelial, myocardial, and renal tubular cells. EETs relax vascular smooth muscle and decrease inflammatory cell adhesion and cytokine release. Renal EETs promote sodium excretion and vasodilation to decrease hypertension. Cardiac EETs reduce infarct size after ischemia-reperfusion injury and decrease fibrosis and inflammation in heart failure. In diabetes, EETs improve insulin sensitivity, increase glucose tolerance, and reduce the renal injury...
September 19, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28937262/empirical-factors-affecting-the-quality-of-non-negative-matrix-factorization-of-mammalian-cell-raman-spectra
#11
H Georg Schulze, Stanislav O Konorov, James M Piret, Michael W Blades, Robin F B Turner
Mammalian cells contain various macromolecules that can be investigated non-invasively with Raman spectroscopy. The particular mixture of major macromolecules present in a cell being probed are reflected in the measured Raman spectra. Determining macromolecular identities and estimating their concentrations from these mixture Raman spectra can distinguish cell types and otherwise enable biological research. However, the application of canonical multivariate methods, such as principal component analysis (PCA), to perform spectral unmixing yields mathematical solutions that can be difficult to interpret...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28937220/a-fluorescence-polarization-activity-based-protein-profiling-assay-in-the-discovery-of-potent-selective-inhibitors-for-human-non-lysosomal-glucosylceramidase
#12
Daniel Lahav, Bing Liu, Richard J B H N van den Berg, Adrianus M C H van den Nieuwendijk, Tom Wennekes, Amar T Ghisaidoobe, Imogen Breen, Maria J Ferraz, Chi-Lin Kuo, Liang Wu, Paul P Geurink, Huib Ovaa, Gijsbert A van der Marel, Mario van der Stelt, Rolf G Boot, Gideon J Davies, Johannes M F G Aerts, Herman S Overkleeft
Human non-lysosomal glucosylceramidase (GBA2) is one of several enzymes that controls levels of glycolipids and whose activity is linked to several human disease states. There is a major need to design or discover selective GBA2 inhibitors both as chemical tools and as potential therapeutic agents. Here, we describe the development of a fluorescence polarization activity-based protein profiling (FluoPol-ABPP) assay for the rapid identification, from a 350+ library of iminosugars, of GBA2 inhibitors. A focused library is generated based on leads from the FluoPol-ABPP screen and assessed on GBA2 selectivity offset against the other glucosylceramide metabolizing enzymes, glucosylceramide synthase (GCS), lysosomal glucosylceramidase (GBA) and the cytosolic retaining β-glucosidase, GBA3...
September 22, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28937176/mesenchymal-stem-cell-mediated-endochondral-ossification-utilising-micropellets-and-brief-chondrogenic-priming
#13
C A Knuth, J Witte-Bouma, Y Ridwan, E B Wolvius, E Farrell
With limited autologous and donor bone graft availability, there is an increasing need for alternative graft substitutes. We have previously shown that chondrogenically priming mesenchymal stem cell (MSC) pellets for 28 d in vitro will reproducibly result in endochondral bone formation after in vivo implantation. However, pellet priming time for clinical applications is quite extensive. A micropellet (μpellet)-fibrin construct was developed and coupled, with a shorter priming period, determined by an in vitro time course experiment...
September 22, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28936736/pathological-effects-of-exosomes-in-mediating-diabetic-cardiomyopathy
#14
Esam S B Salem, Guo-Chang Fan
Diabetic subjects are at risk of developing cardiovascular disease, which accounts for 60-80% of diabetes-related mortality. Atherosclerosis is still considered as a leading cause of heart failure in diabetic patients, but it could also be an intrinsic and long-term effect of contractile cardiac cells malfunction, known as diabetic cardiomyopathy (DCM). Pathologically, this cardiac dysfunction is manifested by inflammation, apoptosis, fibrosis, hypertrophy and altered cardiomyocytes metabolism. However, the underlying molecular mechanisms of DCM pathophysiology are not clearly understood...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28936647/3d-imaging-of-whole-mount-ovules-at-cellular-resolution-to-study-female-germline-development-in-rice
#15
Ethel Mendocilla-Sato, Wenjing She, Célia Baroux
Recent advances in fluorescence-based staining of cellular compartments coupled with confocal microscopy imaging have allowed the visualization of three-dimensional (3D) structures with cellular resolution in various intact plant tissues and species. Such approaches are of particular interest for the analysis of the reproductive lineage in plants including the meiotic precursor cells deeply embedded within the ovary of the gynoecium enclosed in the flower. Yet, their relative inaccessibility and the lack of optical clarity of plant tissues prevent robust staining and imaging across several cell layers...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28936587/metabolite-ratios-as-potential-biomarkers-for-type-2-diabetes-a-direct-study
#16
Sophie Molnos, Simone Wahl, Mark Haid, E Marelise W Eekhoff, René Pool, Anna Floegel, Joris Deelen, Daniela Much, Cornelia Prehn, Michaela Breier, Harmen H Draisma, Nienke van Leeuwen, Annemarie M C Simonis-Bik, Anna Jonsson, Gonneke Willemsen, Wolfgang Bernigau, Rui Wang-Sattler, Karsten Suhre, Annette Peters, Barbara Thorand, Christian Herder, Wolfgang Rathmann, Michael Roden, Christian Gieger, Mark H H Kramer, Diana van Heemst, Helle K Pedersen, Valborg Gudmundsdottir, Matthias B Schulze, Tobias Pischon, Eco J C de Geus, Heiner Boeing, Dorret I Boomsma, Anette G Ziegler, P Eline Slagboom, Sandra Hummel, Marian Beekman, Harald Grallert, Søren Brunak, Mark I McCarthy, Ramneek Gupta, Ewan R Pearson, Jerzy Adamski, Leen M 't Hart
AIMS/HYPOTHESIS: Circulating metabolites have been shown to reflect metabolic changes during the development of type 2 diabetes. In this study we examined the association of metabolite levels and pairwise metabolite ratios with insulin responses after glucose, glucagon-like peptide-1 (GLP-1) and arginine stimulation. We then investigated if the identified metabolite ratios were associated with measures of OGTT-derived beta cell function and with prevalent and incident type 2 diabetes...
September 21, 2017: Diabetologia
https://www.readbyqxmd.com/read/28936215/omics-approaches-for-understanding-grapevine-berry-development-regulatory-networks-associated-with-endogenous-processes-and-environmental-responses
#17
REVIEW
Alejandra Serrano, Carmen Espinoza, Grace Armijo, Claudio Inostroza-Blancheteau, Evelyn Poblete, Carlos Meyer-Regueiro, Anibal Arce, Francisca Parada, Claudia Santibáñez, Patricio Arce-Johnson
Grapevine fruit development is a dynamic process that can be divided into three stages: formation (I), lag (II), and ripening (III), in which physiological and biochemical changes occur, leading to cell differentiation and accumulation of different solutes. These stages can be positively or negatively affected by multiple environmental factors. During the last decade, efforts have been made to understand berry development from a global perspective. Special attention has been paid to transcriptional and metabolic networks associated with the control of grape berry development, and how external factors affect the ripening process...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28936210/novel-mutations-of-the-tetratricopeptide-repeat-domain-7a-gene-and-phenotype-genotype-comparison
#18
Reyin Lien, Yung-Feng Lin, Min-Wei Lai, Hui-Ying Weng, Ren-Chin Wu, Tang-Her Jaing, Jing-Long Huang, Shih-Feng Tsai, Wen-I Lee
The gastrointestinal tract contains the largest lymphoid organ to react with pathogenic microorganisms and suppress excess inflammation. Patients with primary immunodeficiency diseases (PIDs) can suffer from refractory diarrhea. In this study, we present two siblings who began to suffer from refractory diarrhea with a poor response to aggressive antibiotic and immunosuppressive treatment after surgical release of neonatal intestinal obstruction. Their lymphocyte proliferation was low, but superoxide production and IL-10 signaling were normal...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28936124/the-risk-of-venous-thromboembolism-associated-with-peripherally-inserted-central-catheters-in-ambulant-cancer-patients
#19
Daniel Jones, Kurt Wismayer, George Bozas, June Palmer, Mandi Elliott, Anthony Maraveyas
BACKGROUND: Deep vein thrombosis (DVT) is a common complication of peripherally inserted central catheters (PICCs). PICCs are increasingly utilised in the management of cancer patients, a group which carries both additional risks for vascular thromboembolism as well as for complex morbidity. We analysed a cohort of cancer patients subjected to PICC insertion in a single cancer centre for the incidence of all-type vascular thromboembolism (VTE) and investigated relative risk factors. METHODS: In this clinical audit, the records of patients referred for PICC insertion in our centre in the period between 1/1/2011 and 1/4/2014 were retrospectively reviewed...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/28935848/clinical-relevance-of-silent-red-blood-cell-autoantibodies
#20
Francesca R Mauro, Fabio Trastulli, Cristiano Alessandri, Guido Valesini, Gianluca Giovannetti, Costantino Riemma, Marika Porrazzo, Sara Pepe, Gioia Colafigli, Maria D Caputo, Maria S De Propris, Anna R Guarini, Gabriella Girelli, Serelina Coluzzi, Robin Foà
To evaluate the clinical significance of RBC autoantibodies in the absence of clinical signs of autoimmune hemolytic anemia (AHIA), we retrospectively analyzed the clinical course of 60 subjects with silent RBC autoantibodies (IgG, 24; IgM, 35; IgG+IgM, 1) diagnosed and followed at our institute. Asymptomatic RBC autoantibodies were detected in 5 (8.3%) pregnant females, 34 (56.7%) healthy individuals (blood donors, 32; subjects with abnormal agglutination of blood samples, 2) and 21 (35%) patients screened prior to surgery (benign disorders, 16; tumors, 5)...
September 21, 2017: Haematologica
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