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https://www.readbyqxmd.com/read/28432260/dual-histone-reader-zmynd8-inhibits-cancer-cell-invasion-by-positively-regulating-epithelial-genes
#1
Moitri Basu, Isha Sengupta, Wasim Khan, Dushyant Kumar Srivastava, Partha Chakrabarti, Siddhartha Roy, Chandrima Das
Enhanced migratory potential and invasiveness of cancer cells attribute crucially.in cancer progression. These phenotypes are achieved by precise alteration of invasion-associated genes through local epigenetic modifications which are recognized by a class of proteins termed as chromatin reader. ZMYND8 (zinc finger MYND (Myeloid, Nervy and DEAF-1)-type containing 8), a key component of transcription regulatory network, has been recently shown to be a novel reader of H3.1K36Me2/H4K16Ac marks. Through differential gene expression analysis upon silencing this chromatin reader, we identified a subset of genes involved in cell proliferation and invasion/migration regulated by ZMYND8...
April 21, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28431498/migrant-workers-in-italy-an-analysis-of-injury-risk-taking-into-account-occupational-characteristics-and-job-tenure
#2
Massimiliano Giraudo, Antonella Bena, Giuseppe Costa
BACKGROUND: Migrants resident in Italy exceeded 5 million in 2015, representing 8.2% of the resident population. The study of the mechanisms that explain the differential health of migrant workers (as a whole and for specific nationalities) has been identified as a priority for research. The international literature has shown that migrant workers have a higher risk of total and fatal injury than natives, but some results are conflicting. The aim of this paper is to study the injury risk differentials between migrants, born in countries with strong migratory pressure (SMPC), and workers born in high income countries (HIC), taking into account individual and firm characteristics and job tenure...
April 22, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28429742/crossing-lines-a-multidisciplinary-framework-for-assessing-connectivity-of-hammerhead-sharks-across-jurisdictional-boundaries
#3
A Chin, C A Simpfendorfer, W T White, G J Johnson, R B McAuley, M R Heupel
Conservation and management of migratory species can be complex and challenging. International agreements such as the Convention on Migratory Species (CMS) provide policy frameworks, but assessments and management can be hampered by lack of data and tractable mechanisms to integrate disparate datasets. An assessment of scalloped (Sphyrna lewini) and great (Sphyrna mokarran) hammerhead population structure and connectivity across northern Australia, Indonesia and Papua New Guinea (PNG) was conducted to inform management responses to CMS and Convention on International Trade in Endangered Species listings of these species...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429677/increased-expression-of-cullin-3-in-nasopharyngeal-carcinoma-and-knockdown-inhibits-proliferation-and-invasion
#4
Ruifang Zeng, Guolin Tan, Wei Li, Yanhong Ma
This study aimed to investigate the clinical significance of Cullin 3 expression in nasopharyngeal carcinoma (NPC), aswell as explore the regulatory mechanism of Cullin 3 underlying the growth and metastasis of NPC cells. Our findings showed that the expression levels of Cullin 3 expression were significantly increased in both NPC tissues and cell lines. A strong positive correlation was found between the Cullin 3 expression and Ki67-based proliferation index in NPC tissues. Moreover, Cullin 3 overexpression was correlated with the local relapse and distant metastasis in NPC patients...
April 18, 2017: Oncology Research
https://www.readbyqxmd.com/read/28428871/does-wintering-north-or-south-of-the-sahara-correlate-with-timing-and-breeding-performance-in-black-tailed-godwits
#5
Rosemarie Kentie, Rocío Marquez-Ferrando, Jordi Figuerola, Laura Gangoso, Jos C E W Hooijmeijer, A H Jelle Loonstra, Frédéric Robin, Mathieu Sarasa, Nathan Senner, Haije Valkema, Mo A Verhoeven, Theunis Piersma
Migrating long distances requires time and energy, and may interact with an individual's performance during breeding. These seasonal interactions in migratory animals are best described in populations with disjunct nonbreeding distributions. The black-tailed godwit (Limosa limosa limosa), which breeds in agricultural grasslands in Western Europe, has such a disjunct nonbreeding distribution: The majority spend the nonbreeding season in West Africa, while a growing number winters north of the Sahara on the Iberian Peninsula...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428856/forage-plants-of-an-arctic-nesting-herbivore-show-larger-warming-response-in-breeding-than-wintering-grounds-potentially-disrupting-migration-phenology
#6
Thomas K Lameris, Femke Jochems, Alexandra J van der Graaf, Mattias Andersson, Juul Limpens, Bart A Nolet
During spring migration, herbivorous waterfowl breeding in the Arctic depend on peaks in the supply of nitrogen-rich forage plants, following a "green wave" of grass growth along their flyway to fuel migration and reproduction. The effects of climate warming on forage plant growth are expected to be larger at the Arctic breeding grounds than in temperate wintering grounds, potentially disrupting this green wave and causing waterfowl to mistime their arrival on the breeding grounds. We studied the potential effect of climate warming on timing of food peaks along the migratory flyway of the Russian population of barnacle geese using a warming experiment with open-top chambers...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428257/the-size-speed-force-relationship-governs-migratory-cell-response-to-tumorigenic-factors
#7
Aldo Leal-Egaña, Gaelle Letort, Jean-Louis Martiel, Andreas Christ, Timothée Vignaud, Caroline Roelants, Odile Filhol, Manuel Théry
Tumor development progresses through a complex path of biomechanical changes leading first to cell growth and contraction followed by cell de-adhesion, scattering and invasion. Tumorigenic factors may act specifically on one of these steps or have wider spectrum of actions, leading to a variety of effects and thus sometimes to apparent contradictory outcomes. Here we used micropatterned lines of collagen type-I/fibronectin on deformable surfaces to standardize cell behavior and to measure simultaneously cell size, speed of motion and the magnitude of the associated traction forces at the level of a single cell...
April 20, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28428190/in-vivo-detection-of-egfrviii-in-glioblastoma-via-perfusion-magnetic-resonance-imaging-signature-consistent-with-deep-peritumoral-infiltration-the-%C3%AF-index
#8
Spyridon Bakas, Hamed Akbari, Jared Pisapia, Maria Martinez-Lage, Martin Rozycki, Saima Rathore, Nadia Dahmane, Donald M O'Rourke, Christos Davatzikos
<br />The epidermal growth factor receptor variant III (EGFRvIII) mutation has been considered a driver mutation and therapeutic target in glioblastoma, the most common and aggressive brain cancer. Currently, detecting EGFRvIII requires postoperative tissue analyses, which are ex vivo and unable to capture the tumor's spatial heterogeneity. Considering the increasing evidence of in vivo imaging signatures capturing molecular characteristics of cancer, this study aims to detect EGFRvIII in primary glioblastoma non-invasively, using routine clinically-acquired imaging...
April 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28428068/comparative-analysis-of-gene-expression-profiles-for-several-migrating-cell-types-identifies-cell-migration-regulators
#9
Young-Kyung Bae, Frank Macabenta, Heather Leigh Curtis, Angelike Stathopoulos
Cell migration is an instrumental process that ensures cells are properly positioned to support the specification of distinct tissue types during development. To provide insight, we used fluorescence activated cell sorting (FACS) to isolate two migrating cell types from the Drosophila embryo: caudal visceral mesoderm (CVM) cells, precursors of longitudinal muscles of the gut, and hemocytes (HCs), the Drosophila equivalent of blood cells. ~350 genes were identified from each of the sorted samples using RNA-seq, and in situ hybridization was used to confirm expression within each cell type or, alternatively, within other interacting, co-sorted cell types...
April 17, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28427432/anti-human-platelet-antigen-hpa-1a-antibodies-may-affect-trophoblast-functions-crucial-for-placental-development-a-laboratory-study-using-an-in-vitro-model
#10
Mariana Eksteen, Gøril Heide, Heidi Tiller, Yan Zhou, Nora Hersoug Nedberg, Inigo Martinez-Zubiaurre, Anne Husebekk, Bjørn R Skogen, Tor B Stuge, Mette Kjær
BACKGROUND: Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a bleeding disorder caused by maternal antibodies against paternal human platelet antigens (HPAs) on fetal platelets. Antibodies against HPA-1a are accountable for the majority of FNAIT cases. We have previously shown that high levels of maternal anti-HPA-1a antibodies are associated with clinically significant reduced birth weight in newborn boys. Chronic inflammatory placental lesions are associated with increased risk of reduced birth weight and have previously been reported in connection with FNAIT pregnancies...
April 21, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28426410/nematode-parasites-of-the-chilean-flamingo-phoenicopterus-chilensis-phoenicopteridae-from-central-argentina-with-a-description-of-a-new-species-of-tetrameres-tetrameridae
#11
Verónica Núñez, Fabiana B Drago, María Celina Digiani, Lia I Lunaschi
During the summer of 2013, several specimens of Phoenicopterus chilensis (Phoenicopteridae) were found dead from unknown causes, in lakes from the endorheic system "Encadenadas del Oeste", Buenos Aires Province, Argentina. Two species of Nematoda were recovered from the proventriculus, one of them new for science. The tetramerid Tetrameres (Tetrameres) salina n. sp. is mainly characterized by having reduced pseudolabia, lips absent, six bifid teeth, males with lateral alae, four rows of somatic spines and length ratio of spicules 1:12-32, and large females with eggs lacking polar filaments...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28425477/microrna-27a-3p-modulates-the-wnt-%C3%AE-catenin-signaling-pathway-to-promote-epithelial-mesenchymal-transition-in-oral-squamous-carcinoma-stem-cells-by-targeting-sfrp1
#12
Bin Qiao, Bao-Xia He, Jing-Hua Cai, Qian Tao, Alfred King-Yin Lam
This study aimed to elucidate how microRNA27a-3p (miR-27a-3p) modulates the Wnt/β-catenin signaling pathway to promote the epithelial-mesenchymal transition (EMT) in oral squamous carcinoma stem cells (OSCSCs) by targeting secreted frizzled-related protein 1 (SFRP1). Flow cytometry was used to sort OSCSCs from the SCC-9 and Tca8113 cell lines. The OSCSCs were randomly assigned into the miR-27a-3p inhibitors group, the miR-27a-3p inhibitors-NC group, the si-SFRP1 group, the si-SFRP1 + miR-27a-3p inhibitors group and the blank group...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424411/migration-pattern-actin-cytoskeleton-organization-and-response-to-pi3k-mtor-and-hsp90-inhibition-of-glioblastoma-cells-with-different-invasive-capacities
#13
Simon Memmel, Dmitri Sisario, Caren Zöller, Vanessa Fiedler, Astrid Katzer, Robin Heiden, Nicholas Becker, Lorenz Eing, Fábio L R Ferreira, Heiko Zimmermann, Markus Sauer, Michael Flentje, Vladimir L Sukhorukov, Cholpon S Djuzenova
High invasiveness and resistance to chemo- and radiotherapy of glioblastoma multiforme (GBM) make it the most lethal brain tumor. Therefore, new treatment strategies for preventing migration and invasion of GBM cells are needed. Using two different migration assays, Western blotting, conventional and super-resolution (dSTORM) fluorescence microscopy we examine the effects of the dual PI3K/mTOR-inhibitor PI-103 alone and in combination with the Hsp90 inhibitor NVP-AUY922 and/or irradiation on the migration, expression of marker proteins, focal adhesions and F-actin cytoskeleton in two GBM cell lines (DK-MG and SNB19) markedly differing in their invasive capacity...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424334/glycosaminoglycan-based-hydrogels-capture-inflammatory-chemokines-and-rescue-defective-wound-healing-in-mice
#14
Nadine Lohmann, Lucas Schirmer, Passant Atallah, Elke Wandel, Ruben A Ferrer, Carsten Werner, Jan C Simon, Sandra Franz, Uwe Freudenberg
Excessive production of inflammatory chemokines can cause chronic inflammation and thus impair cutaneous wound healing. Capturing chemokine signals using wound dressing materials may offer powerful new treatment modalities for chronic wounds. Here, a modular hydrogel based on end-functionalized star-shaped polyethylene glycol (starPEG) and derivatives of the glycosaminoglycan (GAG) heparin was customized for maximal chemokine sequestration. The material is shown to effectively scavenge the inflammatory chemokines MCP-1 (monocyte chemoattractant protein-1), IL-8 (interleukin-8), and MIP-1α (macrophage inflammatory protein-1α) and MIP-1β (macrophage inflammatory protein-1β) in wound fluids from patients suffering from chronic venous leg ulcers and to reduce the migratory activity of human monocytes and polymorphonuclear neutrophils...
April 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28424008/olfactory-development-part-2-neuroanatomic-maturation-and-dysgeneses
#15
Harvey B Sarnat, Laura Flores-Sarnat
Olfactory axons project from nasal epithelium to the primitive telencephalon before olfactory bulbs form. Olfactory bulb neurons do not differentiate in situ but arrive via the rostral migratory stream. Synaptic glomeruli and concentric laminar architecture are unlike other cortices. Fetal olfactory maturation of neuronal differentiation, synaptogenesis, and myelination remains incomplete at term and have a protracted course of postnatal development. The olfactory ventricular recess involutes postnatally but dilates in congenital hydrocephalus...
May 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28423573/involvement-of-af1q-mllt11-in-the-progression-of-ovarian-cancer
#16
Paola Tiberio, Ludmila Lozneanu, Valentina Angeloni, Elena Cavadini, Patrizia Pinciroli, Maurizio Callari, Maria Luisa Carcangiu, Domenica Lorusso, Francesco Raspagliesi, Valentina Pala, Maria Grazia Daidone, Valentina Appierto
The functional role of AF1q/MLLT11, an oncogenic factor involved in a translocation t(1;11)(q21;q23) responsible for acute myeloid leukaemia, has been investigated in hematological and solid malignancies and its expression was found to be linked to tumor progression and poor clinical outcome. In addition to its oncogenic function, AF1q has been shown to play a role in the onset of basal and drug-induced apoptosis in cancer cells of different histotypes, including ovarian cancer. Through in vitro, ex vivo, and in silico approaches, we demonstrated here that AF1q is also endowed with protumorigenic potential in ovarian cancer...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423527/hes1-promotes-extracellular-matrix-protein-expression-and-inhibits-proliferation-and-migration-in-human-trabecular-meshwork-cells-under-oxidative-stress
#17
Linqi Xu, Yan Zhang, Ruru Guo, Wencui Shen, Yan Qi, Qingsong Wang, Zhenglong Guo, Chen Qi, Haifang Yin, Jiantao Wang
Glaucoma is the leading cause of irreversible blindness. The most prevalent form of glaucoma is primary open-angle glaucoma (POAG). Oxidative stress is one of the major pathogenic factors of the POAG, and can elicit molecular and functional changes in trabecular meshwork cells, causing increased aqueous humor outflow resistance and elevated intraocular pressure. However, the regulatory mechanisms underlying oxidative stress-induced cell phenotypic changes remain elusive. Herein, we exposed primary human trabecular meshwork cells to the oxidative stress induced by 300 μM H2O2 for 2 h, and found significantly up-regulated expression of extracellular matrix proteins and a transcription factor, hairy and enhancer of split-1 (HES1)...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423181/mesenteric-lymph-node-cd11b-cd103-pd-l1-high-dendritic-cells-highly-induce-regulatory-t-cells
#18
Aya Shiokawa, Ryutaro Kotaki, Tomohiro Takano, Haruyo Nakajima-Adachi, Satoshi Hachimura
Dendritic cells (DCs) in mesenteric lymph nodes (MLNs) induce Foxp3(+) regulatory T cells to regulate immune responses to beneficial or non-harmful agents in the intestine, such as commensal bacteria and foods. Several studies in MLN DCs have revealed that CD103(+) DC subset highly induces regulatory T cells, and another study has reported that MLN DCs from PD-L1-deficient mice could not induce regulatory T cells. Thus, the present study investigated expression of these molecules on MLN CD11c(+) cells. Four distinct subsets expressing CD103 and/or PD-L1 were identified, namely CD11b(+) CD103(+) PD-L1(High) , CD11b(-) CD103(+) PD-L1(High) , CD11b(-) CD103(+) PD-L1(Low) , and CD11b(+) CD103(-) PD-L1(Int...
April 19, 2017: Immunology
https://www.readbyqxmd.com/read/28423047/impact-of-body-condition-on-influenza-a-virus-infection-dynamics-in-mallards-following-a-secondary-exposure
#19
Nicholas G Dannemiller, Colleen T Webb, Kenneth R Wilson, Kevin T Bentler, Nicole L Mooers, Jeremy W Ellis, J Jeffrey Root, Alan B Franklin, Susan A Shriner
Migratory waterfowl are often viewed as vehicles for the global spread of influenza A viruses (IAVs), with mallards (Anas platyrhynchos) implicated as particularly important reservoir hosts. The physical demands and energetic costs of migration have been shown to influence birds' body condition; poorer body condition may suppress immune function and affect the course of IAV infection. Our study evaluated the impact of body condition on immune function and viral shedding dynamics in mallards naturally exposed to an H9 IAV, and then secondarily exposed to an H4N6 IAV...
2017: PloS One
https://www.readbyqxmd.com/read/28422972/challenges-in-enumeration-of-ctcs-in-breast-cancer-using-techniques-independent-of-cytokeratin-expression
#20
John Castle, Karen Morris, Susan Pritchard, Cliona C Kirwan
INTRODUCTION: Given the current postulated plasticity between epithelial and mesenchymal states of migratory cancer cells the detection of non-epithelial CTCs is an important scientific and clinical goal. METHODS: We used the filtration-based ISET technology to enrich circulating tumour cells (CTCs) in early breast cancer blood samples and identify them using a morphology-based immunocytochemistry (ICC) approach. RESULTS: We found greater numbers of putative CTCs by this approach than by the cytokeratin-based CellSearch technology, but a high number of CTC false positives were identified in healthy volunteer samples which were not reduced in successive blood draws...
2017: PloS One
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