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https://www.readbyqxmd.com/read/28212571/activation-of-jnk-and-ire1-is-critically-involved-in-tanshinone-i-induced-p62-dependent-autophagy-in-malignant-pleural-mesothelioma-cells-implication-of-p62-uba-domain
#1
Jihyun Lee, Eun Jung Sohn, Sangwook Yoon, Gunho Won, Chang Geun Kim, Ji Hoon Jung, Sung-Hoon Kim
The aim of present study is to elucidate autophagic mechanism of tanshinone I (Tan I) in H28 and H2452 mesothelioma cells. Herein, Tan I exerted cytotoxicity with autophagic features of autophagy protein 5 (ATG5)/ microtubule-associated protein 1A/1B-light chain 3II (LC3 II) activation, p62/sequestosome 1 (SQSTM1) accumulation and increased number of LC3II punctae, acridine orange-stained cells and autophagic vacuoles. However, 3-methyladenine (3MA) and NH4Cl increased cytotoxicity in Tan I treated H28 cells...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209559/irreversible-electroporation-for-the-ablation-of-renal-cell-carcinoma-a-prospective-human-in-vivo-study-protocol-ideal-phase-2b
#2
Mara Buijs, Krijn P van Lienden, Peter Gk Wagstaff, Matthijs Jv Scheltema, Daniel M de Bruin, Patricia J Zondervan, Otto M van Delden, Ton G van Leeuwen, Jean Jmch de la Rosette, M Pilar Laguna
BACKGROUND: Irreversible electroporation (IRE) is an emerging technique delivering electrical pulses to ablate tissue, with the theoretical advantage to overcome the main shortcomings of conventional thermal ablation. Recent short-term research showed that IRE for the ablation of renal masses is a safe and feasible treatment option. In an ablate and resect design, histopathological analysis 4 weeks after radical nephrectomy demonstrated that IRE-targeted renal tumors were completely covered by ablation zone...
February 16, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28205053/intentional-switching-of-auditory-attention-between-long-and-short-sequential-tone-patterns
#3
Sophie Nolden, Iring Koch
The current study focuses on auditory task switching, more precisely on switching attention between different temporal patterns of the same auditory stimulus. Tone sequences consisting of nine different pitch tones were presented aurally. Three repetitive short 3-tone patterns (local focus) were combined to a long pattern (global focus), and each could be either rising or falling, resulting in congruent or incongruent combinations. Participants were informed by a cue if they had to attend to the short or to the long pattern, and they indicated if the target pattern was rising or falling by pressing one of two keys...
February 15, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28202075/tick-borne-pathogens-induce-differential-expression-of-genes-promoting-cell-survival-and-host-resistance-in-ixodes-ricinus-cells
#4
Karen L Mansfield, Charlotte Cook, Richard J Ellis, Lesley Bell-Sakyi, Nicholas Johnson, Pilar Alberdi, José de la Fuente, Anthony R Fooks
BACKGROUND: There has been an emergence and expansion of tick-borne diseases in Europe, Asia and North America in recent years, including Lyme disease, tick-borne encephalitis and human anaplasmosis. The primary vectors implicated are hard ticks of the genus Ixodes. Although much is known about the host response to these bacterial and viral pathogens, there is limited knowledge of the cellular responses to infection within the tick vector. The bacterium Anaplasma phagocytophilum is able to bypass apoptotic processes in ticks, enabling infection to proceed...
February 15, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28196404/a-p57-conditional-mutant-allele-that-allows-tracking-of-p57-expressing-cells
#5
Despoina Mademtzoglou, Sonia Alonso-Martin, Ted Hung-Tse Chang, Keren Bismuth, Bernadette Drayton-Libotte, Frédéric Aurade, Frédéric Relaix
p57(Kip2) (p57) is a maternally expressed imprinted gene regulating growth arrest which belongs to the CIP/KIP family of Cyclin-Dependent Kinase Inhibitors. While initially identified as a cell cycle arrest protein through inhibition of cyclin and cyclin-dependent kinase complexes, p57 activity has also been linked to differentiation, apoptosis, and senescence. In addition, p57 has recently been shown to be involved in tumorigenesis and cell fate decisions in stem cells. Yet, p57 function in adult tissues remains poorly characterized due to the perinatal lethality of p57 knock-out mice...
February 14, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28195648/hematology-and-biochemistry-of-aging-evidence-of-anemia-of-the-elderly-in-old-dogs
#6
Lauren B Radakovich, Stephen C Pannone, Matthew P Truelove, Christine S Olver, Kelly S Santangelo
BACKGROUND: Effects of aging on hematologic and biochemical variables are well described in people. Anemia of the elderly is attributed to iron deficiency, anemia of chronic disease, chronic kidney disease, myelodysplasia, or idiopathic causes. Limited studies have examined these variables in aging dogs, but they have typically examined single breeds in research settings. OBJECTIVE: The objective of this study was to identify differences in CBC and biochemistry values between adult and aged dogs of many breeds...
February 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28188885/trpm5-expression-in-the-olfactory-epithelium
#7
Martina Pyrski, Eugenia Eckstein, Andreas Schmid, Bernd Bufe, Jan Weiss, Vladimir Chubanov, Ulrich Boehm, Frank Zufall
The Ca(2+)-activated monovalent cation channel Trpm5 is a key element in chemotransduction of taste receptor cells of the tongue, but the extent to which Trpm5 channels are expressed in olfactory sensory neurons (OSNs) of the main olfactory epithelium (MOE) of adult mice as part of a specific pheromonal detection system is debated. Here, we used a novel Trpm5-IRES-Cre knockin strain to drive Cre recombinase expression, employed previously validated Trpm5 antibodies, performed in situ hybridization experiments to localize Trpm5 RNA, and searched extensively for Trpm5 splice variants in genetically-labeled, Trpm5-expressing MOE cells...
February 7, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28185295/irreversible-electroporation-for-the-ablation-of-pancreatic-malignancies-a-patient-specific-methodology
#8
Eduardo L Latouche, Michael B Sano, Melvin F Lorenzo, Rafael V Davalos, Robert C G Martin
BACKGROUND AND OBJECTIVES: Irreversible Electroporation (IRE) is a focal ablation technique highly attractive to surgical oncologists due to its non-thermal nature that allows for eradication of unresectable tumors in a minimally invasive procedure. In this study, our group sought to address the challenge of predicting the ablation volume with IRE for pancreatic procedures. METHODS: In compliance with HIPAA and hospital IRB approval, we established a pre-treatment planning methodology for IRE procedures in pancreas, which optimized treatment protocols for individual cases of locally advanced pancreatic cancer (LAPC)...
February 10, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28184247/a-versatile-2a-peptide-based-bicistronic-protein-expressing-platform-for-the-industrial-cellulase-producing-fungus-trichoderma-reesei
#9
Venkataramanan Subramanian, Logan A Schuster, Kyle T Moore, Larry E Taylor, John O Baker, Todd A Vander Wall, Jeffrey G Linger, Michael E Himmel, Stephen R Decker
BACKGROUND: The industrial workhorse fungus, Trichoderma reesei, is typically exploited for its ability to produce cellulase enzymes, whereas use of this fungus for over-expression of other proteins (homologous and heterologous) is still very limited. Identifying transformants expressing target protein is a tedious task due to low transformation efficiency, combined with highly variable expression levels between transformants. Routine methods for identification include PCR-based analysis, western blotting, or crude activity screening, all of which are time-consuming techniques...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28179675/show-of-shipwrecked-treasures-raises-scientists-ire
#10
Traci Watson
No abstract text is available yet for this article.
February 7, 2017: Nature
https://www.readbyqxmd.com/read/28179526/a-sequence-independent-unstructured-ires-is-responsible-for-internal-expression-of-the-coat-protein-of-turnip-crinkle-virus
#11
Jared May, Philip Johnson, Huma Saleem, Anne E Simon
To maximize the coding potential of viral genomes, internal ribosome entry sites (IRES) can be used to bypass the traditional requirement of a 5' cap and some/all of the associated translation initiation factors. Although viral IRES typically contain higher order RNA structure, an unstructured sequence of about 84-nt immediately upstream of the Turnip crinkle virus (TCV) coat protein (CP) ORF has been found to promote internal expression of the CP from the genomic (g)RNA both in vitro and in vivo Absence of extensive RNA structure was predicted using RNA folding algorithms and confirmed by SHAPE structure probing...
February 8, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28179027/genome-scaffolding-and-annotation-for-the-pathogen-vector-ixodes-ricinus-by-ultra-long-single-molecule-sequencing
#12
Wibke J Cramaro, Oliver E Hunewald, Lesley Bell-Sakyi, Claude P Muller
BACKGROUND: Global warming and other ecological changes have facilitated the expansion of Ixodes ricinus tick populations. Ixodes ricinus is the most important carrier of vector-borne pathogens in Europe, transmitting viruses, protozoa and bacteria, in particular Borrelia burgdorferi (sensu lato), the causative agent of Lyme borreliosis, the most prevalent vector-borne disease in humans in the Northern hemisphere. To faster control this disease vector, a better understanding of the I...
February 8, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28162818/efficacy-of-preoperative-immunonutrition-in-locally-advanced-pancreatic-cancer-undergoing-irreversible-electroporation-ire
#13
R C G Martin, S Agle, M Schlegel, T Hayat, C R Scoggins, K M McMasters, P Philips
BACKGROUND: Improved preoperative immunonutrition has been shown to decrease the length of stay (LOS) and complications among patients undergoing elective gastrointestinal cancer surgeries. The purpose of this study was to determine whether preoperative immunonutrition supplementation decreases postoperative LOS, infectious complications, and morbidity in patients undergoing irreversible electroporation (IRE) surgery for locally advanced pancreatic cancer (LAPC). METHODS: At a regional hepatopancreatobiliary referral center within an academic medical center 71 patients receiving IRE treatment of LAPC were included in the study...
January 19, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28161827/concurrent-chemotherapy-alone-versus-irreversible-electroporation-followed-by-chemotherapy-on-survival-in-patients-with-locally-advanced-pancreatic-cancer
#14
Giuseppe Belfiore, Maria Paola Belfiore, Alfonso Reginelli, Raffaella Capasso, Francesco Romano, Giovanni Pietro Ianniello, Salvatore Cappabianca, Luca Brunese
Pancreatic adenocarcinoma is one of the most fatal cancers, characterized by aggressive tumor growth and a short patient survival time between diagnosis and death. Safe and effective treatment options are limited, especially in cases when surgical resection is not possible. Irreversible electroporation (IRE) is a non-thermal ablation technique recently introduced in the treatment of pancreatic cancer. From 2013 to 2016, 29 cases of locally advanced pancreatic cancer (LAPC) treated with IRE were retrospectively analyzed and the median overall survival (OS) rates were compared with patients with the same diagnosis who received standard chemotherapy as reported in the literature...
March 2017: Medical Oncology
https://www.readbyqxmd.com/read/28159226/the-effect-of-amino-acid-deprivation-on-the-transfer-of-iron-through-caco-2-cell-monolayers
#15
Guenievre Roussel, Valerie Stevens, Sarah Cottin, Harry J McArdle
Iron (Fe) metabolism is modified by many nutritional factors. Amino acids (AA) play a central role in various biological processes, such as protein synthesis and energy supply. However, the influence of AA status on iron metabolism has not been investigated. Here, we test whether AA alters iron metabolism in an intestinal cell model. Both Fe uptake and transfer across the cell monolayer were significantly increased by non-essential AA deficiency (both p<0.001) while only Fe transfer was increased by essential AA deficiency (p<0...
March 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28158319/dnmt-1-maintains-hypermethylation-of-cag-promoter-specific-region-and-prevents-expression-of-exogenous-gene-in-fat-1-transgenic-sheep
#16
Chunrong Yang, Xueying Shang, Lei Cheng, Lei Yang, Xuefei Liu, Chunling Bai, Zhuying Wei, Jinlian Hua, Guangpeng Li
Methylation is an important issue in gene expression regulation and also in the fields of genetics and reproduction. In this study, we created fat-1 transgenic sheep, investigated the fine-mapping and the modulatory mechanisms of promoter methylation. Sheep fetal fibroblasts were transfected by pCAG-fat1-IRES-EGFP. Monoclonal cell line was screened as nuclear donor and carried out nuclear transfer (441 transgenic cloned embryos, 52 synchronism recipient sheep). Six offsprings were obtained. Expressions of exogenous genes fat-1 and EGFP were detectable in 10 examined tissues and upregulated omega-3 fatty acid content...
2017: PloS One
https://www.readbyqxmd.com/read/28138065/dynamics-of-ires-mediated-translation
#17
REVIEW
Alex G Johnson, Rosslyn Grosely, Alexey N Petrov, Joseph D Puglisi
Viral internal ribosome entry sites (IRESs) are unique RNA elements, which use stable and dynamic RNA structures to recruit ribosomes and drive protein synthesis. IRESs overcome the high complexity of the canonical eukaryotic translation initiation pathway, often functioning with a limited set of eukaryotic initiation factors. The simplest types of IRESs are typified by the cricket paralysis virus intergenic region (CrPV IGR) and hepatitis C virus (HCV) IRESs, both of which independently form high-affinity complexes with the small (40S) ribosomal subunit and bypass the molecular processes of cap-binding and scanning...
March 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28130578/-liver-metastases-of-colorectal-cancer
#18
R-T Hoffmann
Liver metastases are the most common cause of death in colorectal cancer patients. Nowadays, complete resection is considered to be the only curative treatment but only approximately 25% of patients are suitable candidates for surgery; therefore, many different interventional oncology techniques have been developed in recent years for the treatment of secondary liver metastases. The aim of interventional oncological procedures is either to provide a potentially curative treatment option for locally limited metastases with local ablative techniques, to enable nonresectable tumors to become accessible to surgical or local ablative techniques using transarterial procedures or to achieve improved survival in a palliative setting...
February 2017: Der Radiologe
https://www.readbyqxmd.com/read/28115626/prmt5-regulates-ires-dependent-translation-via-methylation-of-hnrnp-a1
#19
Guozhen Gao, Surbhi Dhar, Mark T Bedford
The type II arginine methyltransferase PRMT5 is responsible for the symmetric dimethylation of histone to generate the H3R8me2s and H4R3me2s marks, which correlate with the repression of transcription. However, the protein level of a number of genes (MEP50, CCND1, MYC, HIF1a, MTIF and CDKN1B) are reported to be downregulated by the loss of PRMT5, while their mRNA levels remain unchanged, which is counterintuitive for PRMT5's proposed role as a transcription repressor. We noticed that the majority of the genes regulated by PRMT5, at the posttranscriptional level, express mRNA containing an internal ribosome entry site (IRES)...
January 23, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28114319/reduced-insulin-insulin-like-growth-factor-receptor-signaling-mitigates-defective-dendrite-morphogenesis-in-mutants-of-the-er-stress-sensor-ire-1
#20
Yehuda Salzberg, Andrew J Coleman, Kevin Celestrin, Moran Cohen-Berkman, Thomas Biederer, Sivan Henis-Korenblit, Hannes E Bülow
Neurons receive excitatory or sensory inputs through their dendrites, which often branch extensively to form unique neuron-specific structures. How neurons regulate the formation of their particular arbor is only partially understood. In genetic screens using the multidendritic arbor of PVD somatosensory neurons in the nematode Caenorhabditis elegans, we identified a mutation in the ER stress sensor IRE-1/Ire1 (inositol requiring enzyme 1) as crucial for proper PVD dendrite arborization in vivo. We further found that regulation of dendrite growth in cultured rat hippocampal neurons depends on Ire1 function, showing an evolutionarily conserved role for IRE-1/Ire1 in dendrite patterning...
January 2017: PLoS Genetics
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