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https://www.readbyqxmd.com/read/27905551/corrigendum-musk-kinase-activity-is-modulated-by-a-serine-phosphorylation-site-in-the-kinase-loop
#1
B Z Camurdanoglu, C Hrovat, G Dürnberger, M Madalinski, K Mechtler, R Herbst
No abstract text is available yet for this article.
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27903673/combining-anti-mir-155-with-chemotherapy-for-the-treatment-of-lung-cancers
#2
Katrien Van Roosbroeck, Francesca Fanini, Tetsuro Setoyama, Cristina Ivan, Cristian Rodriguez-Aguayo, Enrique Fuentes-Mattei, Lianchun Xiao, Ivan Vannini, Roxana Redis, Lucilla D'Abundo, Xinna Zhang, Milena S Nicoloso, Simona Rossi, Vianey Gonzalez-Villasana, Rajesha Rupaimoole, Manuela Ferracin, Fortunato Morabito, Antonino Neri, Peter Ruvolo, Vivian R Ruvolo, Chad V Pecot, Dino Amadori, Lynne Aruzzo, Steliana Calin, Xuemei Wang, M James You, Alessandra Ferrajoli, Robert Z Orlowski, William Plunkett, Tara Lichtenberg, Ramana V Davuluri, Ioana Berindan-Neagoe, Massimo Negrini, Ignacio I Wistuba, Kantarjian Hagop, Anil K Sood, Gabriel Lopez-Berestein, Michael J Keating, Muller Fabbri, George A Calin
Purpose The oncogenic miR-155 is upregulated in many human cancers and its expression is increased in more aggressive and therapy resistant tumors, but the molecular mechanisms underlying miR-155-induced therapy resistance are not fully understood. The main objectives of this study were to determine the role of miR-155 in resistance to chemotherapy and to evaluate anti-miR-155 treatment to chemosensitize tumors. Experimental Design We performed in vitro studies on cell lines to investigate the role of miR-155 in therapy resistance...
November 30, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27900953/feedback-control-policies-employed-by-people-using-intracortical-brain-computer-interfaces
#3
Francis R Willett, Chethan Pandarinath, Beata Jarosiewicz, Brian A Murphy, William D Memberg, Christine H Blabe, Jad Saab, Benjamin L Walter, Jennifer A Sweet, Jonathan P Miller, Jaimie M Henderson, Krishna V Shenoy, John D Simeral, Leigh R Hochberg, Robert F Kirsch, A Bolu Ajiboye
OBJECTIVE: When using an intracortical BCI (iBCI), users modulate their neural population activity to move an effector towards a target, stop accurately, and correct for movement errors. We call the rules that govern this modulation a 'feedback control policy'. A better understanding of these policies may inform the design of higher-performing neural decoders. APPROACH: We studied how three participants in the BrainGate2 pilot clinical trial used an iBCI to control a cursor in a 2D target acquisition task...
November 30, 2016: Journal of Neural Engineering
https://www.readbyqxmd.com/read/27900782/residue-centric-modeling-and-design-of-saccharide-and-glycoconjugate-structures
#4
Jason W Labonte, Jared Adolf-Bryfogle, William R Schief, Jeffrey J Gray
The RosettaCarbohydrate framework is a new tool for modeling a wide variety of saccharide and glycoconjugate structures. This report describes the development of the framework and highlights its applications. The framework integrates with established protocols within the Rosetta modeling and design suite, and it handles the vast complexity and variety of carbohydrate molecules, including branching and sugar modifications. To address challenges of sampling and scoring, RosettaCarbohydrate can sample glycosidic bonds, side-chain conformations, and ring forms, and it utilizes a glycan-specific term within its scoring function...
November 30, 2016: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/27899586/r-loopdb-a-database-for-r-loop-forming-sequences-rlfs-and-r-loops
#5
Piroon Jenjaroenpun, Thidathip Wongsurawat, Sawannee Sutheeworapong, Vladimir A Kuznetsov
R-loopDB (http://rloop.bii.a-star.edu.sg) was originally constructed as a collection of computationally predicted R-loop forming sequences (RLFSs) in the human genic regions. The renewed R-loopDB provides updates, improvements and new options, including access to recent experimental data. It includes genome-scale prediction of RLFSs for humans, six other animals and yeast. Using the extended quantitative model of RLFSs (QmRLFS), we significantly increased the number of RLFSs predicted in the human genes and identified RLFSs in other organism genomes...
November 28, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27897196/product-release-is-rate-limiting-for-catalytic-processing-by-the-dengue-virus-protease
#6
A E Shannon, M M Pedroso, K J Chappell, D Watterson, S Liebscher, W M Kok, D P Fairlie, G Schenk, P R Young
Dengue Virus (DENV) is the most prevalent global arbovirus, yet despite an increasing burden to health care there are currently no therapeutics available to treat infection. A potential target for antiviral drugs is the two-component viral protease NS2B-NS3pro, which is essential for viral replication. Interactions between the two components have been investigated here by probing the effect on the rate of enzyme catalysis of key mutations in a mobile loop within NS2B that is located at the interface of the two components...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895572/plastic-changes-in-human-motor-cortical-output-induced-by-random-but-not-closed-loop-peripheral-stimulation-the-curse-of-causality
#7
Kenneth I Brown, Elizabeth R Williams, Felipe de Carvalho, Stuart N Baker
Previous work showed that repetitive peripheral nerve stimulation can induce plastic changes in motor cortical output. Triggering electrical stimulation of central structures from natural activity can also generate plasticity. In this study, we tested whether triggering peripheral nerve stimulation from muscle activity would likewise induce changes in motor output. We developed a wearable electronic device capable of recording electromyogram (EMG) and delivering electrical stimulation under closed-loop control...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27895406/simplified-criteria-for-diagnosing-superficial-esophageal-squamous-neoplasms-using-narrow-band-imaging-magnifying-endoscopy
#8
Akira Dobashi, Kenichi Goda, Noboru Yoshimura, Tomohiko R Ohya, Masayuki Kato, Kazuki Sumiyama, Masato Matsushima, Shinichi Hirooka, Masahiro Ikegami, Hisao Tajiri
AIM: To simplify the diagnostic criteria for superficial esophageal squamous cell carcinoma (SESCC) on Narrow Band Imaging combined with magnifying endoscopy (NBI-ME). METHODS: This study was based on the post-hoc analysis of a randomized controlled trial. We performed NBI-ME for 147 patients with present or a history of squamous cell carcinoma in the head and neck, or esophagus between January 2009 and June 2011. Two expert endoscopists detected 89 lesions that were suspicious for SESCC lesions, which had been prospectively evaluated for the following 6 NBI-ME findings in real time: "intervascular background coloration"; "proliferation of intrapapillary capillary loops (IPCL)"; and "dilation", "tortuosity", "change in caliber", and "various shapes (VS)" of IPCLs (i...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27890337/a-double-button-adjustable-loop-device-is-biomechanically-equivalent-to-tension-band-wire-in-the-fixation-of-transverse-patellar-fractures-a-cadaveric-study
#9
Fucai Han, Christopher Jon Pearce, David Q K Ng, Amit K Ramruttun, Desmond Y R Chong, Diarmuid Murphy, Chin Tat Lim, Bernard C S Lee
INTRODUCTION: Tension-band wire fixation of patellar fractures is associated with significant hardware-related complications and infection. Braided polyester suture fixation is an alternative option. However, these suture fixations have higher failure rates due to the difficulty in achieving rigid suture knot fixation. The Arthrex syndesmotic TightRope, which is a double-button adjustable loop fixation device utilizing a 4-point locking system using FibreWire, may not only offer stiff rigid fixation using a knotless system, but may also obviate the need for implant removal due to hardware related problems...
November 17, 2016: Injury
https://www.readbyqxmd.com/read/27889265/integration-of-phytochrome-and-cryptochrome-signals-determines-plant-growth-during-competition-for-light
#10
Mieke de Wit, Diederik H Keuskamp, Franca J Bongers, Patricia Hornitschek, Charlotte M M Gommers, Emilie Reinen, Carmen Martínez-Cerón, Christian Fankhauser, Ronald Pierik
Plants in dense vegetation perceive their neighbors primarily through changes in light quality. Initially, the ratio between red (R) and far-red (FR) light decreases due to reflection of FR by plant tissue well before shading occurs. Perception of low R:FR by the phytochrome photoreceptors induces the shade avoidance response [1], of which accelerated elongation growth of leaf-bearing organs is an important feature. Low R:FR-induced phytochrome inactivation leads to the accumulation and activation of the transcription factors PHYTOCHROME-INTERACTING FACTORs (PIFs) 4, 5, and 7 and subsequent expression of their growth-mediating targets [2, 3]...
November 17, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27889263/shade-promotes-phototropism-through-phytochrome-b-controlled-auxin-production
#11
Anupama Goyal, Elizabeth Karayekov, Vinicius Costa Galvão, Hong Ren, Jorge J Casal, Christian Fankhauser
Phototropism is an asymmetric growth response enabling plants to optimally position their organs. In flowering plants, the phototropin (phot) blue light receptors are essential to detect light gradients. In etiolated seedlings, the phototropic response is enhanced by the red/far-red (R/FR)-sensing phytochromes (phy) with a predominant function of phyA. In this study, we analyzed the influence of the phytochromes on phototropism in green (de-etiolated) Arabidopsis seedlings. Our experiments in the laboratory and outdoors revealed that, in open environments (high R/FR ratio), phyB inhibits phototropism...
November 22, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27883901/tapping-the-brakes-cellular-and-synaptic-mechanisms-that-regulate-thalamic-oscillations
#12
REVIEW
P Michelle Fogerson, John R Huguenard
Thalamic oscillators contribute to both normal rhythms associated with sleep and anesthesia and abnormal, hypersynchronous oscillations that manifest behaviorally as absence seizures. In this review, we highlight new findings that refine thalamic contributions to cortical rhythms and suggest that thalamic oscillators may be subject to both local and global control. We describe endogenous thalamic mechanisms that limit network synchrony and discuss how these protective brakes might be restored to prevent absence seizures...
November 23, 2016: Neuron
https://www.readbyqxmd.com/read/27876844/the-n-terminal-loop-of-irak-4-death-domain-regulates-ordered-assembly-of-the-myddosome-signalling-scaffold
#13
Anthony C G Dossang, Precious G Motshwene, Yang Yang, Martyn F Symmons, Clare E Bryant, Satty Borman, Julie George, Alexander N R Weber, Nicholas J Gay
Activation of Toll-like receptors induces dimerization and the recruitment of the death domain (DD) adaptor protein MyD88 into an oligomeric post receptor complex termed the Myddosome. The Myddosome is a hub for inflammatory and oncogenic signaling and has a hierarchical arrangement with 6-8 MyD88 molecules assembling with exactly 4 of IRAK-4 and 4 of IRAK-2. Here we show that a conserved motif in IRAK-4 (Ser8-X-X-X-Arg12) is autophosphorylated and that the phosphorylated DD is unable to form Myddosomes. Furthermore a mutant DD with the phospho-mimetic residue Asp at this position is impaired in both signalling and Myddosome assembly...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27871064/benzopyrimido-pyrrolo-oxazine-dione-cftr-inhibitor-r-bpo-27-for-anti-secretory-therapy-of-diarrheas-caused-by-bacterial-enterotoxins
#14
Onur Cil, Puay-Wah Phuan, Anne Marie Gillespie, Sujin Lee, Lukmanee Tradtrantip, Jianyi Yin, Ming Tse, Nicholas C Zachos, Ruxian Lin, Mark Donowitz, Alan S Verkman
Secretory diarrheas caused by bacterial enterotoxins, including cholera and traveler's diarrhea, remain a major global health problem. Inappropriate activation of the cystic fibrosis transmembrane conductance regulator (CFTR) chloride channel occurs in these diarrheas. We previously reported that the benzopyrimido-pyrrolo-oxazinedione (R)-BPO-27 inhibits CFTR chloride conductance with low-nanomolar potency. Here, we demonstrate using experimental mouse models and human enterocyte cultures the potential utility of (R)-BPO-27 for treatment of secretory diarrheas caused by cholera and Escherichia coli enterotoxins...
November 8, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27870290/assessment-of-usda-nrcs-rangeland-conservation-programs-recommendation-for-an-evidence-based-conservation-platform
#15
D D Briske, B T Bestelmeyer, J R Brown, M W Brunson, T L Thurow, J A Tanaka
The Conservation Effects Assessment Project (CEAP) was created in response to a request from the Office of Management and Budget that the U.S. Department of Agriculture, Natural Resource Conservation Service (USDA-NRCS) document the societal benefits anticipated to accrue from a major increase in conservation funding authorized by the 2002 Farm Bill. A comprehensive evaluation of the efficacy of rangeland conservation practices cost-shared with private landowners was unable to evaluate conservation benefits because outcomes were seldom documented...
August 4, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27867754/a-small-chimeric-fibronectin-fragment-accelerates-dermal-wound-repair-in-diabetic-mice
#16
Denise C Hocking, James R Brennan, Carol H Raeman
Objective: During wound repair, soluble fibronectin is converted into biologically active, insoluble fibrils via a cell-mediated process. This fibrillar, extracellular matrix (ECM) form of fibronectin stimulates cell processes critical to tissue repair. Nonhealing wounds show reduced levels of ECM fibronectin fibrils. The objective of this study was to produce a small, recombinant wound supplement with the biological activity of insoluble fibronectin fibrils. Approach: A chimeric fibronectin fragment was produced by inserting the integrin-binding Arg-Gly-Asp (RGD) loop from the tenth type III repeat of fibronectin (FNIII10) into the analogous site within the heparin-binding, bioactive fragment of the first type III repeat (FNIII1H)...
November 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/27863397/targeting-gli-by-gant61-involves-mechanisms-dependent-on-inhibition-of-both-transcription-and-dna-licensing
#17
Ruowen Zhang, Jiahui Wu, Sylvain Ferrandon, Katie J Glowacki, Janet A Houghton
The GLI genes are transcription factors and in cancers are oncogenes, aberrantly and constitutively activated. GANT61, a specific GLI inhibitor, has induced extensive cytotoxicity in human models of colon cancer. The FOXM1 promoter was determined to be a transcriptional target of GLI1. In HT29 cells, inhibition of GLI1 binding at the GLI consensus sequence by GANT61 led to inhibited binding of Pol II, the pause-release factors DSIF, NELF and p-TEFb. The formation of R-loops (RNA:DNA hybrids, ssDNA), were reduced by GANT61 at the FOXM1 promoter...
November 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27859418/mutual-epithelium-macrophage-dependency-in-liver-carcinogenesis-mediated-by-st18
#18
Micol Ravà, Aleco D'Andrea, Mirko Doni, Theresia R Kress, Renato Ostuni, Valerio Bianchi, Marco J Morelli, Agnese Collino, Serena Ghisletti, Paola Nicoli, Camilla Recordati, Maria Iascone, Aurelio Sonzogni, Lorenzo D'Antiga, Ruchi Shukla, Geoffrey J Faulkner, Gioacchino Natoli, Stefano Campaner, Bruno Amati
: The ST18 gene was proposed to act either as a tumor suppressor or as an oncogene in different human cancers, but direct evidence for its role in tumorigenesis was missing so far. Here, we demonstrate that ST18 is critical for tumor progression and maintenance in a mouse model of liver cancer, based on oncogenic transformation and adoptive transfer of primary precursor cells (hepatoblasts). ST18 mRNA and protein were detectable neither in the normal liver nor in cultured hepatoblasts, but were readily expressed following subcutaneous engraftment and tumor growth...
November 14, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27858507/numerous-small-hammerhead-ribozyme-variants-associated-with-penelope-like-retrotransposons-cleave-rna-as-dimers
#19
Christina E Lünse, Zasha Weinberg, Ronald R Breaker
Hammerhead ribozymes represent the most common of the nine natural classes of self-cleaving RNAs. The hammerhead catalytic core includes 11 highly-conserved nucleotides located largely within the unpaired regions of a junction formed by stems I, II and III. The vast majority of previously reported examples carry an additional pseudoknot or other tertiary interactions between nucleotides that precede stem I and nucleotides in the loop of stem II. These extra contacts are critical for high-speed RNA catalysis...
November 18, 2016: RNA Biology
https://www.readbyqxmd.com/read/27856278/most-probable-number-loop-mediated-isothermal-amplification-mpn-lamp-for-quantifying-waterborne-pathogens-in-25min
#20
Farhan Ahmad, Robert D Stedtfeld, Hassan Waseem, Maggie R Williams, Alison M Cupples, James M Tiedje, Syed A Hashsham
We are reporting a most probable number approach integrated to loop mediated isothermal technique (MPN-LAMP) focusing on Gram-negative Escherichia coli and Gram-positive Enterococcus faecalis bacterial cells without nucleic acids extraction. LAMP assays for uidA from E. coli and gelE from E. faecalis were successfully performed directly on cells up to single digit concentration using a commercial real time PCR instrument. Threshold time values of LAMP assays of bacterial cells, heat treated bacterial cells (95°C for 5min), and their purified genomic DNA templates were similar, implying that amplification could be achieved directly from bacterial cells at 63°C...
November 14, 2016: Journal of Microbiological Methods
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