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https://www.readbyqxmd.com/read/28445985/interleukin-22-promotes-aerobic-glycolysis-associated-with-tumor-progression-via-targeting-hexokinase-2-in-human-colon-cancer-cells
#1
Yulin Liu, Fan Xiang, Yongming Huang, Liang Shi, Chaojie Hu, Yiming Yang, Di Wang, Nan He, Kaixiong Tao, Ke Wu, Guobin Wang
Interleukin-22 has been explored extensively in human cancer, but its functions and underlying mechanisms are incompletely understood. Here, we show that aberrant interleukin-22 expression facilitates aerobic glycolysis in colon cancer cells. Elevated interleukin-22 mRNA expression was observed and positively correlated with hexokinase-2 in colon cancer tissues. In vitro, interleukin-22 enhanced glucose consumption and lactate production via targeting hexokinase-2 in colon cancer cells. Moreover, the transcriptional factor c-Myc and signal transducer and activator of transcription 3 were involved in interleukin-22-induced up-regulation of hexokinase-2...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445817/nanostructural-and-mechanical-property-changes-to-spider-silk-as-a-consequence-of-insecticide-exposure
#2
Marco Benamú, Mariángeles Lacava, Luis F García, Martín Santana, Jian Fang, Xungai Wang, Sean J Blamires
Neonicotinoids are one of the world's most extensively used insecticides, but their sub-lethal influences on non-target and beneficial organisms are not well known. Here we exposed the orb web spider Parawixia audax, which is found on arable lands in Uruguay, to a sub-lethal concentration of the broad spectrum insecticide Geonex (thiamethoxam + lambda-cyhalothrin) and monitored their web building. We collected their major ampullate silk and subjected it to tensile tests, wide-angle X-ray diffraction (WAXS) analysis, and amino acid composition analysis...
April 21, 2017: Chemosphere
https://www.readbyqxmd.com/read/28445814/comprehensive-profiling-and-characterization-of-coumarins-from-roots-stems-leaves-branches-and-seeds-of-chimonanthus-nitensoliv-using-ultra-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-combined-with-modified-mass-defect-filter
#3
Ting Tan, Yun Luo, Chen-Cong Zhong, Xu Xu, Yulin Feng
Chimonanthus nitensOliv. (CNO), having been studied and developed as the tea beverages, tea raw materials and preparations, an unique species in China, have been extensively used for treating colds and influenza for centuries. In the present study, a method based on the modified mass defect filter (MDF) was firstly developed and validated for comprehensive profiling of coumarins in the different parts of CNO via ultra-performance liquid chromatography tandem quadrupole time-of-flight mass spectrometry (UPLC-QTOF/MS)...
April 17, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28445774/voxresnet-deep-voxelwise-residual-networks-for-brain-segmentation-from-3d-mr-images
#4
REVIEW
Hao Chen, Qi Dou, Lequan Yu, Jing Qin, Pheng-Ann Heng
Segmentation of key brain tissues from 3D medical images is of great significance for brain disease diagnosis, progression assessment and monitoring of neurologic conditions. While manual segmentation is time-consuming, laborious, and subjective, automated segmentation is quite challenging due to the complicated anatomical environment of brain and the large variations of brain tissues. We propose a novel voxelwise residual network (VoxResNet) with a set of effective training schemes to cope with this challenging problem...
April 23, 2017: NeuroImage
https://www.readbyqxmd.com/read/28445744/nmrbox-a-resource-for-biomolecular-nmr-computation
#5
Mark W Maciejewski, Adam D Schuyler, Michael R Gryk, Ion I Moraru, Pedro R Romero, Eldon L Ulrich, Hamid R Eghbalnia, Miron Livny, Frank Delaglio, Jeffrey C Hoch
Advances in computation have been enabling many recent advances in biomolecular applications of NMR. Due to the wide diversity of applications of NMR, the number and variety of software packages for processing and analyzing NMR data is quite large, with labs relying on dozens, if not hundreds of software packages. Discovery, acquisition, installation, and maintenance of all these packages is a burdensome task. Because the majority of software packages originate in academic labs, persistence of the software is compromised when developers graduate, funding ceases, or investigators turn to other projects...
April 25, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28445733/nf-%C3%AE%C2%BAb-immunity-in-the-brain-determines-fly-lifespan-in-healthy-aging-and-age-related-neurodegeneration
#6
Ilias Kounatidis, Stanislava Chtarbanova, Yang Cao, Margaret Hayne, Dhruv Jayanth, Barry Ganetzky, Petros Ligoxygakis
During aging, innate immunity progresses to a chronically active state. However, what distinguishes those that "age well" from those developing age-related neurological conditions is unclear. We used Drosophila to explore the cost of immunity in the aging brain. We show that mutations in intracellular negative regulators of the IMD/NF-κB pathway predisposed flies to toxic levels of antimicrobial peptides, resulting in early locomotor defects, extensive neurodegeneration, and reduced lifespan. These phenotypes were rescued when immunity was suppressed in glia...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445727/environmental-enrichment-induces-pericyte-and-iga-dependent-wound-repair-and-lifespan-extension-in-a-colon-tumor-model
#7
Benjamin D Bice, Megan R Stephens, Stephanie J Georges, Ashlee R Venancio, Peter C Bermant, Annika V Warncke, Kajsa E Affolter, Julio R Hidalgo, Melinda L Angus-Hill
Environmental enrichment (EE) replicates mind-body therapy by providing complex housing to laboratory animals to improve their activity levels, behavior, and social interactions. Using a Tcf4(Het/+)Apc(Min/+)-mediated model of colon tumorigenesis, we found that EE vastly improved the survival of tumor-bearing animals, with differential effect on tumor load in male compared to female animals. Analysis of Tcf4(Het/+)Apc(Min/+) males showed drastically reduced expression of circulating inflammatory cytokines and induced nuclear hormone receptor (NHR) signaling, both of which are common in the wound repair process...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445722/genomic-analyses-reveal-the-influence-of-geographic-origin-migration-and-hybridization-on-modern-dog-breed-development
#8
Heidi G Parker, Dayna L Dreger, Maud Rimbault, Brian W Davis, Alexandra B Mullen, Gretchen Carpintero-Ramirez, Elaine A Ostrander
There are nearly 400 modern domestic dog breeds with a unique histories and genetic profiles. To track the genetic signatures of breed development, we have assembled the most diverse dataset of dog breeds, reflecting their extensive phenotypic variation and heritage. Combining genetic distance, migration, and genome-wide haplotype sharing analyses, we uncover geographic patterns of development and independent origins of common traits. Our analyses reveal the hybrid history of breeds and elucidate the effects of immigration, revealing for the first time a suggestion of New World dog within some modern breeds...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445717/hepatic-elovl6-mrna-is-regulated-by-the-gga-mir-22-3p-in-egg-laying-hen
#9
Zheng Ma, Hong Li, Hang Zheng, Keren Jiang, Fengbin Yan, Yadong Tian, Xiangtao Kang, Yanbin Wang, Xiaojun Liu
The elongation of very long chain fatty acids protein 6 (ELOVL6) encodes a fatty acid elongase that is responsible for the final step in endogenous saturated fatty acid synthesis and involves in de novo lipogenesis. Though the regulatory mechanism of ELOVL6 expression has been studied extensively, little is known about the role of miRNA in regulating ELOVL6 gene expression in chicken until now. To investigate the regulatory mechanism of miRNA on the expression of ELOVL6 gene, bioinformatics analysis was employed to predict the potential miRNAs that binding with the 3'untranslated region (3'UTR) of ELOVL6...
April 23, 2017: Gene
https://www.readbyqxmd.com/read/28445691/tis11-mediated-mrna-decay-promotes-the-reacquisition-of-drosophila-intestinal-stem-cell-quiescence
#10
Lindy McClelland, Heinrich Jasper, Benoît Biteau
Adult stem cell proliferation rates are precisely regulated to maintain long-term tissue homeostasis. Defects in the mechanisms controlling stem cell proliferation result in impaired regeneration and hyperproliferative diseases. Many stem cell populations increase proliferation in response to tissue damage and reacquire basal proliferation rates after tissue repair is completed. Although proliferative signals have been extensively studied, much less is known about the molecular mechanisms that restore stem cell quiescence...
April 23, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28445683/impact-of-preoperative-breast-mr-imaging-and-mr-guided-surgery-on-diagnosis-and-surgical-outcome-of-women-with-invasive-breast-cancer-with-and-without-dcis-component
#11
Christiane K Kuhl, Kevin Strobel, Heribert Bieling, Eva Wardelmann, Walther Kuhn, Nikolaus Maass, Simone Schrading
Purpose To (a) compare the diagnostic accuracy of breast magnetic resonance (MR) imaging with that of conventional imaging (digital mammography and breast ultrasonography) in the identification of ductal carcinoma in situ (DCIS) components of biopsy-proven invasive breast cancer before surgery and (b) investigate the surgical outcome (positive margin rates and mastectomy rates) of women with breast cancer who underwent preoperative MR imaging combined with MR-guided needle biopsy and/or MR-guided lesion localization or bracketing where appropriate...
April 26, 2017: Radiology
https://www.readbyqxmd.com/read/28445677/overexpression-of-the-cytokine-baff-and-autoimmunity-risk
#12
Maristella Steri, Valeria Orrù, M Laura Idda, Maristella Pitzalis, Mauro Pala, Ilenia Zara, Carlo Sidore, Valeria Faà, Matteo Floris, Manila Deiana, Isadora Asunis, Eleonora Porcu, Antonella Mulas, Maria G Piras, Monia Lobina, Sandra Lai, Mara Marongiu, Valentina Serra, Michele Marongiu, Gabriella Sole, Fabio Busonero, Andrea Maschio, Roberto Cusano, Gianmauro Cuccuru, Francesca Deidda, Fausto Poddie, Gabriele Farina, Mariano Dei, Francesca Virdis, Stefania Olla, Maria A Satta, Mario Pani, Alessandro Delitala, Eleonora Cocco, Jessica Frau, Giancarlo Coghe, Lorena Lorefice, Giuseppe Fenu, Paola Ferrigno, Maria Ban, Nadia Barizzone, Maurizio Leone, Franca R Guerini, Matteo Piga, Davide Firinu, Ingrid Kockum, Izaura Lima Bomfim, Tomas Olsson, Lars Alfredsson, Ana Suarez, Patricia E Carreira, Maria J Castillo-Palma, Joseph H Marcus, Mauro Congia, Andrea Angius, Maurizio Melis, Antonio Gonzalez, Marta E Alarcón Riquelme, Berta M da Silva, Maurizio Marchini, Maria G Danieli, Stefano Del Giacco, Alessandro Mathieu, Antonello Pani, Stephen B Montgomery, Giulio Rosati, Jan Hillert, Stephen Sawcer, Sandra D'Alfonso, John A Todd, John Novembre, Gonçalo R Abecasis, Michael B Whalen, Maria G Marrosu, Alessandra Meloni, Serena Sanna, Myriam Gorospe, David Schlessinger, Edoardo Fiorillo, Magdalena Zoledziewska, Francesco Cucca
Background Genomewide association studies of autoimmune diseases have mapped hundreds of susceptibility regions in the genome. However, only for a few association signals has the causal gene been identified, and for even fewer have the causal variant and underlying mechanism been defined. Coincident associations of DNA variants affecting both the risk of autoimmune disease and quantitative immune variables provide an informative route to explore disease mechanisms and drug-targetable pathways. Methods Using case-control samples from Sardinia, Italy, we performed a genomewide association study in multiple sclerosis followed by TNFSF13B locus-specific association testing in systemic lupus erythematosus (SLE)...
April 27, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28445647/how-will-copper-contamination-constrain-future-global-steel-recycling
#13
Katrin Ellen Daehn, Andre Cabrera Serrenho, Julian M Allwood
Copper in steel causes metallurgical problems, but is pervasive in end-of-life scrap and cannot currently be removed commercially once in the melt. Contamination can be managed to an extent by globally trading scrap for use in tolerant applications and dilution with primary iron sources. However, the viability of long-term strategies can only be evaluated with a complete characterization of copper in the global steel system and this is presented in this paper. The copper concentration of flows along the 2008 steel supply chain is estimated from a survey of literature data and compared with estimates of the maximum concentration that can be tolerated in steel products...
April 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28445605/high-throughput-cell-mechanical-phenotyping-for-label-free-titration-assays-of-cytoskeletal-modifications
#14
Stefan Golfier, Philipp Rosendahl, Alexander Mietke, Maik Herbig, Jochen Guck, Oliver Otto
The mechanical fingerprint of cells is inherently linked to the structure of the cytoskeleton and can serve as a label free marker for cell homeostasis or pathologic states. How cytoskeletal composition affects the physical response of cells to external loads has been intensively studied with a spectrum of techniques, yet quantitative and statistically powerful investigations in the form of titration assays are hampered by the low throughput of most available methods. In this study, we employ real-time deformability cytometry (RT-DC), a novel microfluidic tool to examine the effects of biochemically modified F-actin and microtubule stability and nuclear chromatin structure on cell deformation in a human leukemia cell line (HL60)...
April 26, 2017: Cytoskeleton
https://www.readbyqxmd.com/read/28445526/biosynthesis-of-the-oxygenated-diterpene-nezukol-in-the-medicinal-plant-isodon-rubescens-is-catalyzed-by-a-pair-of-diterpene-synthases
#15
Kyle A Pelot, David M Hagelthorn, J Bennett Addison, Philipp Zerbe
Plants produce an immense diversity of natural products (i.e. secondary or specialized metabolites) that offer a rich source of known and potentially new pharmaceuticals and other desirable bioproducts. The Traditional Chinese Medicinal plant Isodon rubescens (Lamiaceae) contains an array of bioactive labdane-related diterpenoid natural products. Of these, the ent-kauranoid oridonin is the most prominent specialized metabolite that has been extensively studied for its potent antimicrobial and anticancer efficacy...
2017: PloS One
https://www.readbyqxmd.com/read/28445507/various-mutations-compensate-for-a-deleterious-lacz%C3%AE-insert-in-the-replication-enhancer-of-m13-bacteriophage
#16
Emily M Zygiel, Karen A Noren, Marta A Adamkiewicz, Richard J Aprile, Heather K Bowditch, Christine L Carroll, Maria Abigail S Cerezo, Adelle M Dagher, Courtney R Hebert, Lauren E Hebert, Gloria M Mahame, Stephanie C Milne, Kelly M Silvestri, Sara E Sutherland, Alexandria M Sylvia, Caitlyn N Taveira, David J VanValkenburgh, Christopher J Noren, Marilena Fitzsimons Hall
M13 and other members of the Ff class of filamentous bacteriophages have been extensively employed in myriad applications. The Ph.D. series of phage-displayed peptide libraries were constructed from the M13-based vector M13KE. As a direct descendent of M13mp19, M13KE contains the lacZα insert in the intergenic region between genes IV and II, where it interrupts the replication enhancer of the (+) strand origin. Phage carrying this 816-nucleotide insert are viable, but propagate in E. coli at a reduced rate compared to wild-type M13 phage, presumably due to a replication defect caused by the insert...
2017: PloS One
https://www.readbyqxmd.com/read/28445485/validity-and-reliability-of-the-physical-activity-questionnaire-for-children-paq-c-and-adolescents-paq-a-in-individuals-with-congenital-heart-disease
#17
Christine Voss, Paige H Dean, Ross F Gardner, Stephanie L Duncombe, Kevin C Harris
OBJECTIVE: To assess the criterion validity, internal consistency, reliability and cut-point for the Physical Activity Questionnaire for Children (PAQ-C) and Adolescents (PAQ-A) in children and adolescents with congenital heart disease-a special population at high cardiovascular risk in whom physical activity has not been extensively evaluated. METHODS: We included 84 participants (13.6±2.9 yrs, 50% female) with simple (37%), moderate (31%), or severe congenital heart disease (27%), as well as cardiac transplant recipients (6%), from BC Children's Hospital, Canada...
2017: PloS One
https://www.readbyqxmd.com/read/28445456/floor-plate-derived-netrin-1-is-dispensable-for-commissural-axon-guidance
#18
Chloé Dominici, Juan Antonio Moreno-Bravo, Sergi Roig Puiggros, Quentin Rappeneau, Nicolas Rama, Pauline Vieugue, Agns Bernet, Patrick Mehlen, Alain Chédotal
Netrin-1 is an evolutionarily conserved, secreted extracellular matrix protein involved in axon guidance at the central nervous system midline. Netrin-1 is expressed by cells localized at the central nervous system midline, such as those of the floor plate in vertebrate embryos. Growth cone turning assays and three-dimensional gel diffusion assays have shown that netrin-1 can attract commissural axons. Loss-of-function experiments further demonstrated that commissural axon extension to the midline is severely impaired in the absence of netrin-1 (refs 3, 7, 8, 9)...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28445434/an-adaptive-clustering-approach-based-on-minimum-travel-route-planning-for-wireless-sensor-networks-with-a-mobile-sink
#19
Jiqiang Tang, Wu Yang, Lingyun Zhu, Dong Wang, Xin Feng
In recent years, Wireless Sensor Networks with a Mobile Sink (WSN-MS) have been an active research topic due to the widespread use of mobile devices. However, how to get the balance between data delivery latency and energy consumption becomes a key issue of WSN-MS. In this paper, we study the clustering approach by jointly considering the Route planning for mobile sink and Clustering Problem (RCP) for static sensor nodes. We solve the RCP problem by using the minimum travel route clustering approach, which applies the minimum travel route of the mobile sink to guide the clustering process...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28445421/an-improved-ble-indoor-localization-with-kalman-based-fusion-an-experimental-study
#20
Jenny Röbesaat, Peilin Zhang, Mohamed Abdelaal, Oliver Theel
Indoor positioning has grasped great attention in recent years. A number of efforts have been exerted to achieve high positioning accuracy. However, there exists no technology that proves its efficacy in various situations. In this paper, we propose a novel positioning method based on fusing trilateration and dead reckoning. We employ Kalman filtering as a position fusion algorithm. Moreover, we adopt an Android device with Bluetooth Low Energy modules as the communication platform to avoid excessive energy consumption and to improve the stability of the received signal strength...
April 26, 2017: Sensors
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