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https://www.readbyqxmd.com/read/28107499/correction-targeting-the-mtor-complex-by-everolimus-in-nras-mutant-neuroblastoma
#1
Michael K Kiessling, Alessandra Curioni-Fontecedro, Panagiotis Samaras, Silvia Lang, Michael Scharl, Adriano Aguzzi, Derek A Oldridge, John M Maris, Gerhard Rogler
[This corrects the article DOI: 10.1371/journal.pone.0147682.].
2017: PloS One
https://www.readbyqxmd.com/read/28104757/analysis-and-identification-of-the-grem2-heparin-heparan-sulfate-binding-motif
#2
Chandramohan Kattamuri, Kristof Nolan, Thomas B Thompson
Bone Morphogenetic Proteins (BMP) are regulated by extracellular antagonists of the DAN (differential screening selected gene aberrative in neuroblastoma) family. Similar to the BMP ligands, certain DAN family members have been shown to interact with heparin and heparan sulfate (HS). Structural studies of DAN family members Gremlin-1 and Gremlin-2 have revealed a dimeric growth-factor like fold where a series of lysine residues cluster along one face of the protein. In this study, we used mutagenesis, heparin binding measurements, and cell surface binding analysis to identify lysine residues that are important for heparin/HS binding in Gremlin-2...
January 19, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28104451/bovine-herpesvirus-1-can-efficiently-infect-the-human-sh-sy5y-but-not-the-mouse-neuroblastoma-cell-line-neuro-2a
#3
Prasanth Thunuguntla, Fouad S El-Mayet, Clinton Jones
Bovine herpesvirus 1 (BoHV-1) is a significant bovine pathogen that establishes a life-long latent infection in sensory neurons. Previous attempts to develop immortalized bovine neuronal cells were unsuccessful. Consequently, our understanding of the BoHV-1 latency-reactivation cycle has relied on studying complex virus-host interactions in calves. In this study, we tested whether BoHV-1 can infect human (SH-SY5Y) or mouse (Neuro-2A) neuroblastoma cells. We provide new evidence that BoHV-1 efficiently infects SH-SY5Y cells and yields virus titers approximately 100 fold less than bovine kidney cells...
January 16, 2017: Virus Research
https://www.readbyqxmd.com/read/28104398/down-regulation-of-boris-ctcfl-efficiently-regulates-cancer-stemness-and-metastasis-in-mycn-amplified-neuroblastoma-cell-line-by-modulating-wnt-%C3%AE-catenin-signaling-pathway
#4
Koteswara Rao Garikapati, Nibedita Patel, Venkata Krishna Kanth Makani, Priyanka Cilamkoti, Utpal Bhadra, Manika Pal Bhadra
BORIS/CTCFL is a vital nucleotide binding protein expressed during embryogenesis and gametogenesis. BORIS/CTCFL is the paralogue of transcriptional repressor protein CTCF, which is aberrantly expressed in various malignancies and primarily re-expressed in cancer stem cells (CSCs). The mechanism behind regulation of BORIS in various cancer conditions and tumor metastases is so far not explored in detail. The aim of the study was to understand the influence of BORIS/CTCFL on stemness and metastasis by regulating well-known oncogenes and related signaling pathways...
January 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28103887/microrna-expression-patterns-and-signalling-pathways-in-the-development-and-progression-of-childhood-solid-tumours
#5
REVIEW
Anna L Leichter, Michael J Sullivan, Michael R Eccles, Aniruddha Chatterjee
The development of childhood solid tumours is tied to early developmental processes. These tumours may be complex and heterogeneous, and elucidating the aberrant mechanisms that alter the early embryonic environment and lead to disease is essential to our understanding of how these tumours function. MicroRNAs (miRNAs) are vital regulators of gene expression at all stages of development, and their crosstalk via developmental signalling pathways is essential for orchestrating regulatory control in processes such as proliferation, differentiation and apoptosis of cells...
January 19, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28102851/cellular-prion-protein-mediates-early-apoptotic-proteome-alternation-and-phospho-modification-in-human-neuroblastoma-cells
#6
Saima Zafar, Christina Behrens, Hassan Dihazi, Matthias Schmitz, Inga Zerr, Walter J Schulz-Schaeffer, Sanja Ramljak, Abdul R Asif
Anti-apoptotic properties of physiological and elevated levels of the cellular prion protein (PrP(c)) under stress conditions are well documented. Yet, detrimental effects of elevated PrP(c) levels under stress conditions, such as exposure to staurosporine (STS) have also been described. In the present study, we focused on discerning early apoptotic STS-induced proteome and phospho-proteome changes in SH-SY5Y human neuroblastoma cells stably transfected either with an empty or PRNP-containing vector, expressing physiological or supraphysiological levels of PrP(c), respectively...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102321/the-chaperonin-cct-inhibits-assembly-of-%C3%AE-synuclein-amyloid-fibrils-by-a-specific-conformation-dependent-interaction
#7
Begoña Sot, Alejandra Rubio-Muñoz, Ahudrey Leal-Quintero, Javier Martínez-Sabando, Miguel Marcilla, Cintia Roodveldt, José M Valpuesta
The eukaryotic chaperonin CCT (chaperonin containing TCP-1) uses cavities built into its double-ring structure to encapsulate and to assist folding of a large subset of proteins. CCT can inhibit amyloid fibre assembly and toxicity of the polyQ extended mutant of huntingtin, the protein responsible for Huntington's disease. This raises the possibility that CCT modulates other amyloidopathies, a still-unaddressed question. We show here that CCT inhibits amyloid fibre assembly of α-synuclein A53T, one of the mutants responsible for Parkinson's disease...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101920/quantitative-proteomic-analysis-of-hiv-1-tat-induced-dysregulation-in-sh-sy5y-neuroblastoma-cells
#8
Tariq Ganief, Putuma Gqamana, Shaun Garnett, Jackie Hoare, Dan J Stein, John Joska, Nelson Soares, Jonathan M Blackburn
Despite affecting up to 70% of HIV-positivepatients and being the leading cause of dementia in patients under 40 years, the molecular mechanisms involved in the onset of HIV-associated neurocognitive disorders (HAND) are not well understood. To address this, we performed SILAC-based quantitative proteomic analysis on HIV-Tat treated SH-SY5Y neuroblastoma cells. Isolated protein was fractionated by SDS-PAGE and analysed by nLC-MS/MS on an Orbitrap Velos. Using MaxQuant, we identified and quantified 3077 unique protein groups, of which 407 were differentially regulated...
January 19, 2017: Proteomics
https://www.readbyqxmd.com/read/28101247/clinical-characteristics-of-infant-neuroblastoma-and-a-summary-of-treatment-outcome
#9
Yi Zhang, Dongsheng Huang, Weiling Zhang, Suoqin Tang, Tao Han, Xia Zhu, Aiping Liu, Tian Zhi
Neuroblastoma (NB) is the most common malignant solid tumor in the peripheral nervous system in infants and young children, with a high degree of malignancy. The clinical characteristics and prognosis of NB in infants are unique. The present study retrospectively analyzed the prognosis of infant NB cases that underwent different treatments. In total, 16 infant NB cases (10 male and 6 female) who were treated between February 2007 and August 2013 in Beijing Tongren Hospital (Beijing, China), were enrolled in the study...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100931/the-value-of-anterior-displacement-of-the-abdominal-aorta-in-diagnosing-neuroblastoma-in-children
#10
Jose Luiz de Oliveira Schiavon, Eliana Maria Monteiro Caran, Vicente Odone Filho, Henrique Manoel Lederman
OBJECTIVE: To determine the value of anterior displacement of the abdominal aorta, when present at any level or only at the level of the adrenal gland, contralateral to the mass, in diagnosing neuroblastoma on computed tomography or magnetic resonance imaging in children up to 7 years of age. MATERIALS AND METHODS: Imaging examinations of 66 patients were classified by consensus as for the presence of anterior aorta displacement and were compared with the pathology report...
November 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/28098666/estimated-internal-and-external-radiation-exposure-of-caregivers-of-patients-with-pediatric-neuroblastoma-undergoing-131i-metaiodobenzylguanidine-therapy-a-prospective-pilot-study
#11
Sangwon Han, Seon Hee Yoo, Kyung-Nam Koh, Jong Jin Lee
PURPOSE: Current recommendations suggest that family members should participate in the care of children receiving in-hospital I metaiodobenzylguanidine (MIBG) therapy for neuroblastoma. The present study aimed to measure the external radiation exposure and estimate the internal radiation exposure of caregivers during the hospital stay for I MIBG therapy. MATERIALS AND METHODS: Caregivers received radiation safety instructions and a potassium iodide solution for thyroid blockade before patient admission...
January 16, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28098253/the-clinically-approved-antiviral-drug-sofosbuvir-inhibits-zika-virus-replication
#12
Carolina Q Sacramento, Gabrielle R de Melo, Caroline S de Freitas, Natasha Rocha, Lucas Villas Bôas Hoelz, Milene Miranda, Natalia Fintelman-Rodrigues, Andressa Marttorelli, André C Ferreira, Giselle Barbosa-Lima, Juliana L Abrantes, Yasmine Rangel Vieira, Mônica M Bastos, Eduardo de Mello Volotão, Estevão Portela Nunes, Diogo A Tschoeke, Luciana Leomil, Erick Correia Loiola, Pablo Trindade, Stevens K Rehen, Fernando A Bozza, Patrícia T Bozza, Nubia Boechat, Fabiano L Thompson, Ana M B de Filippis, Karin Brüning, Thiago Moreno L Souza
Zika virus (ZIKV) is a member of the Flaviviridae family, along with other agents of clinical significance such as dengue (DENV) and hepatitis C (HCV) viruses. Since ZIKV causes neurological disorders during fetal development and in adulthood, antiviral drugs are necessary. Sofosbuvir is clinically approved for use against HCV and targets the protein that is most conserved among the members of the Flaviviridae family, the viral RNA polymerase. Indeed, we found that sofosbuvir inhibits ZIKV RNA polymerase, targeting conserved amino acid residues...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28096355/a-natural-product-inhibits-the-initiation-of-%C3%AE-synuclein-aggregation-and-suppresses-its-toxicity
#13
Michele Perni, Céline Galvagnion, Alexander Maltsev, Georg Meisl, Martin B D Müller, Pavan K Challa, Julius B Kirkegaard, Patrick Flagmeier, Samuel I A Cohen, Roberta Cascella, Serene W Chen, Ryan Limboker, Pietro Sormanni, Gabriella T Heller, Francesco A Aprile, Nunilo Cremades, Cristina Cecchi, Fabrizio Chiti, Ellen A A Nollen, Tuomas P J Knowles, Michele Vendruscolo, Adriaan Bax, Michael Zasloff, Christopher M Dobson
The self-assembly of α-synuclein is closely associated with Parkinson's disease and related syndromes. We show that squalamine, a natural product with known anticancer and antiviral activity, dramatically affects α-synuclein aggregation in vitro and in vivo. We elucidate the mechanism of action of squalamine by investigating its interaction with lipid vesicles, which are known to stimulate nucleation, and find that this compound displaces α-synuclein from the surfaces of such vesicles, thereby blocking the first steps in its aggregation process...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28092103/species-differences-in-hepatic-biotransformation-of-the-anthelmintic-drug-flubendazole
#14
M L Maté, T Geary, C Mackenzie, C Lanusse, G Virkel
Flubendazole (FLBZ) is a broad-spectrum benzimidazole anthelmintic used in pigs, poultry, and humans. It has been proposed as a candidate for development for use in elimination programmes for lymphatic filariasis and onchocerciasis in humans. Moreover, FLBZ has shown promise in cancer chemotherapy, particularly for neuroblastoma. This work investigated the hepatic carbonyl-reducing pathway of FLBZ in different species, including humans. Microsomal and cytosolic fractions were obtained from sheep, cattle, pig, hen, rat, and human liver...
January 16, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28091676/hemispherical-platinum%C3%A2-%C3%A2-silver-core%C3%A2-%C3%A2-shell-nanoparticles-for-mirna-detection
#15
Elaine Spain, Kellie Adamson, Mohammad Elshahawy, Isabella Bray, Tia E Keyes, Raymond L Stallings, Robert J Forster
Defects within a self-assembled monolayer (SAM) of dodecanethiol on gold have been used as nucleation sites for the electrodeposition of mushroom shaped platinum nanoparticles (PtNPs). The top surfaces of these PtNPs were then decorated with a layer of silver creating a hemispherical - platinum : silver core : shell nanoparticle (Pt-AgNP). Thiolated probe strand miRNA was then immobilised onto the upper silver surface. These regioselectively modified particles were desorbed by applying a current jump to yield nanoparticles capable of hybridising to a complementary miRNA target with electrocatalysis occurring on the non-functionalized lower surface...
January 16, 2017: Analyst
https://www.readbyqxmd.com/read/28089584/pterostilbene-attenuates-high-glucose-induced-oxidative-injury-in-hippocampal-neuronal-cells-by-activating-nuclear-factor-erythroid-2-related-factor-2
#16
Yang Yang, Chongxi Fan, Bodong Wang, Zhiqiang Ma, Dongjin Wang, Bing Gong, Shouyin Di, Shuai Jiang, Yue Li, Tian Li, Zhi Yang, Erping Luo
In the present study, neuroblastoma (SH-SY5Y) cells were used to investigate the mechanisms mediating the potential protective effects of pterostilbene (PTE) against mitochondrial metabolic impairment and oxidative stress induced by hyperglycemia for mimicking the diabetic encephalopathy. High glucose medium (100 mM) decreased cellular viability after 24 h incubation which was evidenced by: (i) reduced mitochondrial complex I and III activities; (ii) reduced mitochondrial cytochrome C; (iii) increased reactive oxygen species (ROS) generation; (iv) decreased mitochondrial membrane potential (ΔΨm); and (v) increased lactate dehydrogenase (LDH) levels...
January 9, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28081550/ninth-grade-school-performance-in-danish-childhood-cancer-survivors
#17
Klaus Kaae Andersen, Anne Katrine Duun-Henriksen, Marie Hoffmann Frederiksen, Jeanette Falck Winther
BACKGROUND: Childhood cancer survivors can experience learning problems resulting in lower-than-expected attained education as adults. It is unclear whether learning problems manifest already during adolescence. METHODS: We analysed nationwide Danish registries on school grades for Danish children during 2001-2014. Applying a matched design we compared grades of childhood cancer survivors to children without cancer at ninth grade. We estimated grade differences by subject and its correlation to cancer site and age at diagnosis...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28081346/neuroprotective-effects-of-bone-marrow-derived-mesenchymal-stem-cellsand-conditioned-medium-in-mechanically-injured-neuroblastoma-cells
#18
Mesut Mete, Işıl Aydemir, Ülkün Ünlü Ünsal, Yusuf Kurtuluş Duransoy, İbrahim Mehmet Tuğlu, Mehmet Selçuki
BACKGROUND/AIM: Bone marrow-derived mesenchymal stem cells (BMSCs) possess self-renewal characteristics that distinguish them from other cell types. Recent studies have focused on the effects of conditioned medium (CM) that includes the extracellular matrix. Here we examined the neuroprotective effects of BMSCs and CM on damaged neuroblastoma cells. MATERIALS AND METHODS: The cells were divided into five groups: 1) healthy controls, 2) damaged cells alone, 3) damaged cells treated with BMSCs, 4) damaged cells treated with CM, and 5) damaged cells treated with both BMSCs and CM...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28077299/anaplastic-lymphoma-kinase-alk-inhibitors-in-the-treatment-of-alk-driven-lung-cancers
#19
REVIEW
Robert Roskoski
Anaplastic lymphoma kinase is expressed in two-thirds of the anaplastic large-cell lymphomas as an NPM-ALK fusion protein. Physiological ALK is a receptor protein-tyrosine kinase within the insulin receptor superfamily of proteins that participates in nervous system development. The EML4-ALK fusion protein and four other ALK-fusion proteins play a fundamental role in the development in about 5% of non-small cell lung cancers. The amino-terminal portions of the ALK fusion proteins result in dimerization and subsequent activation of the ALK protein kinase domain that plays a key role in the pathogenesis of various tumors...
January 8, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28077289/vitamin-d3-protects-against-a%C3%AE-peptide-cytotoxicity-in-differentiated-human-neuroblastoma-sh-sy5y-cells-a-role-for-s1p1-p38mapk-atf4-axis
#20
Federica Pierucci, Mercedes Garcia-Gil, Alessia Frati, Francesca Bini, Maria Martinesi, Eleonora Vannini, Marco Mainardi, Federico Luzzati, Paolo Peretto, Matteo Caleo, Elisabetta Meacci
Besides its classical function of bone metabolism regulation, 1alpha, 25-dihydroxyvitamin D3 (1,25(OH)2D3), acts on a variety of tissues including the nervous system, where the hormone plays an important role as neuroprotective, antiproliferating and differentiating agent. Sphingolipids are bioactive lipids that play critical and complex roles in regulating cell fate. In the present paper we have investigated whether sphingolipids are involved in the protective action of 1,25(OH)2D3. We have found that 1,25(OH)2D3 prevents amyloid-β peptide (Aβ(1-42)) cytotoxicity both in differentiated SH-SY5Y human neuroblastoma cells and in vivo...
January 7, 2017: Neuropharmacology
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