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https://www.readbyqxmd.com/read/28637687/inhibition-of-cdk4-6-by-palbociclib-significantly-extends-survival-in-medulloblastoma-patient-derived-xenograft-mouse-models
#1
Michelle L Cook Sangar, Laura A Genovesi, Madison W Nakamoto, Melissa J Davis, Sue E Knoblaugh, Pengxiang Ji, Amanda Millar, Brandon Wainwright, James M Olson
  <p>Bioinformatics analysis followed by in vivo studies in patient-derived xenograft models were used to identify and validate CDK 4/6 inhibition as an effective therapeutic strategy for medulloblastoma, particularly Group 3 MYC-amplified tumors which have the worst clinical prognosis.</p> <br />Experimental Design: <p>A protein interaction network derived from a Sleeping Beauty mutagenesis model of medulloblastoma was used to identify potential novel therapeutic targets.  The top hit from this analysis was validated in vivo using patient-derived xenograft models of medulloblastoma implanted subcutaneously in the flank and orthotopically in the cerebellum of mice...
June 21, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28615776/sleeping-beauty-syndrome-a-case-report-and-review-of-female-cases-reported-from-india
#2
Naresh Nebhinani, Navratan Suthar
Kleine-Levin syndrome (KLS), also called "Sleeping beauty syndrome" is a rare, disorder predominantly reported in adolescent males, characterized by recurrent episodes of hypersomnia and to various degrees, hyperphagia, cognitive disturbances, and hypersexuality. Here, we are reporting a case of a middle-aged female, with 16 years delay in diagnosing KLS, poor response to most of the psychotropics, except good response to a combination of lithium, sertraline, and modafinil for last 12 months and also reviewing other female cases with KLS reported from India...
May 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28584132/transposon-mutagenesis-identifies-chromatin-modifiers-cooperating-with-ras-in-thyroid-tumorigenesis-and-detects-atxn7-as-a-cancer-gene
#3
Cristina Montero-Conde, Luis J Leandro-Garcia, Xu Chen, Gisele Oler, Sergio Ruiz-Llorente, Mabel Ryder, Iñigo Landa, Francisco Sanchez-Vega, Konnor La, Ronald A Ghossein, Dean F Bajorin, Jeffrey A Knauf, Jesse D Riordan, Adam J Dupuy, James A Fagin
Oncogenic RAS mutations are present in 15-30% of thyroid carcinomas. Endogenous expression of mutant Ras is insufficient to initiate thyroid tumorigenesis in murine models, indicating that additional genetic alterations are required. We used Sleeping Beauty (SB) transposon mutagenesis to identify events that cooperate with Hras(G12V) in thyroid tumor development. Random genomic integration of SB transposons primarily generated loss-of-function events that significantly increased thyroid tumor penetrance in Tpo-Cre/homozygous FR-Hras(G12V) mice...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28530135/prolonged-expression-of-secreted-enzymes-in-dogs-after-liver-directed-delivery-of-sleeping-beauty-transposons-implications-for-non-viral-gene-therapy-of-systemic-disease
#4
Elena L Aronovich, Kendra A Hyland, Bryan C Hall, Jason B Bell, Erik R Olson, Myra Urness Rusten, David W Hunter, N Matthew Ellinwood, R Scott McIvor, Perry B Hackett
The non-viral, integrating Sleeping Beauty (SB) transposon system is efficient in treating systemic monogenic disease in mice, including hemophilia A and B caused by deficiency of blood clotting factors and mucopolysaccharidosis types I and VII caused by α-L-iduronidase (IDUA) and β-glucuronidase (GUSB) deficiency, respectively. Modified approaches of the hydrodynamics-based procedure to deliver transposons to the liver in dogs were recently reported. Using the transgenic canine reporter secreted alkaline phosphatase (cSEAP), transgenic protein in the plasma was demonstrated for up to 6 weeks post infusion...
May 19, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28521544/correction-to-hudecek-izsv%C3%A3-k-johnen-renner-thumann-and-ivics-going-non-viral-the-sleeping-beauty-transposon-system-breaks-on-through-to-the-clinical-side
#5
(no author information available yet)
No abstract text is available yet for this article.
May 18, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28513320/crispr-cas9-based-pten-knock-out-and-sleeping-beauty-transposon-mediated-nras-knock-in-induces-hepatocellular-carcinoma-and-hepatic-lipid-accumulation-in-mice
#6
Mingming Gao, Dexi Liu
Both Pten and Nras are downstream mediators of receptor tyrosine kinase activation that plays important roles in controlling cell survival and proliferation. Here, we investigated whether and how Pten loss cross-talks with Nras activation in driving liver cancer development in mice. Somatic disruption of hepatic Pten and overexpression of Nras were achieved in out-bred immunocompetent CD-1 mice through a hydrodynamic delivery of plasmids carrying Sleeping Beauty transposon-based integration of Nras and the CRISPR/Cas9-mediated Pten knock-out system...
May 17, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28447859/transgene-expression-in-dogs-after-liver-directed-hydrodynamic-delivery-of-sleeping-beauty-transposons-using-balloon-catheters
#7
Kendra A Hyland, Elena L Aronovich, Erik R Olson, Jason B Bell, Myra Urness Rusten, Roland Gunther, David W Hunter, Perry B Hackett, R Scott McIvor
The Sleeping Beauty transposon system has been extensively tested for integration of reporter and therapeutic genes in vitro and in vivo in mice. Dogs were used as a large animal model for human therapy and minimally invasive infusion of DNA solutions. DNA solutions were delivered into the entire liver or the left side of the liver using balloon catheters for temporary occlusion of venous outflow. A peak intravascular pressure between 80 and 140 mmHg supported sufficient DNA delivery in dog liver for detection of secretable reporter proteins...
April 19, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28445233/preclinical-models-for-translational-sarcoma-research
#8
Rainer Hamacher, Sebastian Bauer
PURPOSE OF REVIEW: Sarcoma is a basket term for mesenchymal tumors for which more than 75 genetically and histologically distinct subtypes are recognized. Therapeutic progress has largely been achieved with classical chemotherapeutic drugs that were tested in empirical clinical trials. However, outcome in metastatic patients remains poor and with few exceptions numerous trials have failed or only provided limited improvement in recent years. RECENT FINDINGS: Given the genomic heterogeneity, preclinical model systems will be indispensable to identify new molecular targets and to prioritize drugs and drug combinations...
July 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28407739/construction-of-a-novel-anaerobic-pathway-in-escherichia-coli-for-propionate-production
#9
Jing Li, Xinna Zhu, Jing Chen, Dongdong Zhao, Xueli Zhang, Changhao Bi
BACKGROUND: Propionate is widely used as an important preservative and important chemical intermediate for synthesis of cellulose fibers, herbicides, perfumes and pharmaceuticals. Biosynthetic propionate has mainly been produced by Propionibacterium, which has various limitations for industrial application. RESULTS: In this study, we engineered E. coli by combining reduced TCA cycle with the native sleeping beauty mutase (Sbm) cycle to construct a redox balanced and energy viable fermentation pathway for anaerobic propionate production...
April 14, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28402189/going-non-viral-the-sleeping-beauty-transposon-system-breaks-on-through-to-the-clinical-side
#10
Michael Hudecek, Zsuzsanna Izsvák, Sandra Johnen, Matthias Renner, Gabriele Thumann, Zoltán Ivics
Molecular medicine has entered a high-tech age that provides curative treatments of complex genetic diseases through genetically engineered cellular medicinal products. Their clinical implementation requires the ability to stably integrate genetic information through gene transfer vectors in a safe, effective and economically viable manner. The latest generation of Sleeping Beauty (SB) transposon vectors fulfills these requirements, and may overcome limitations associated with viral gene transfer vectors and transient non-viral gene delivery approaches that are prevalent in ongoing pre-clinical and translational research...
April 12, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28345263/nmr-solution-structure-of-the-red-subdomain-of-the-sleeping-beauty-transposase
#11
Tatiana A Konnova, Christopher M Singer, Irina V Nesmelova
DNA transposons can be employed for stable gene transfer in vertebrates. The Sleeping Beauty (SB) DNA transposon has been recently adapted for human application and is being evaluated in clinical trials, however its molecular mechanism is not clear. SB transposition is catalyzed by the transposase enzyme, which is a multi-domain protein containing the catalytic and the DNA-binding domains. The DNA-binding domain of the SB transposase contains two structurally independent subdomains, PAI and RED. Recently, the structures of the catalytic domain and the PAI subdomain have been determined, however no structural information on the RED subdomain and its interactions with DNA has been available...
June 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28325297/engineering-of-pedf-expressing-primary-pigment-epithelial-cells-by-the-sb-transposon-system-delivered-by-pfar4-plasmids
#12
Gabriele Thumann, Nina Harmening, Cécile Prat-Souteyrand, Corinne Marie, Marie Pastor, Attila Sebe, Csaba Miskey, Laurence D Hurst, Sabine Diarra, Martina Kropp, Peter Walter, Daniel Scherman, Zoltán Ivics, Zsuzsanna Izsvák, Sandra Johnen
Neovascular age-related macular degeneration (nvAMD) is characterized by choroidal blood vessels growing into the subretinal space, leading to retinal pigment epithelial (RPE) cell degeneration and vision loss. Vessel growth results from an imbalance of pro-angiogenic (e.g., vascular endothelial growth factor [VEGF]) and anti-angiogenic factors (e.g., pigment epithelium-derived factor [PEDF]). Current treatment using intravitreal injections of anti-VEGF antibodies improves vision in about 30% of patients but may be accompanied by side effects and non-compliance...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28319090/a-single-copy-sleeping-beauty-transposon-mutagenesis-screen-identifies-new-pten-cooperating-tumor-suppressor-genes
#13
Jorge de la Rosa, Julia Weber, Mathias Josef Friedrich, Yilong Li, Lena Rad, Hannes Ponstingl, Qi Liang, Sandra Bernaldo de Quirós, Imran Noorani, Emmanouil Metzakopian, Alexander Strong, Meng Amy Li, Aurora Astudillo, María Teresa Fernández-García, María Soledad Fernández-García, Gary J Hoffman, Rocío Fuente, George S Vassiliou, Roland Rad, Carlos López-Otín, Allan Bradley, Juan Cadiñanos
The overwhelming number of genetic alterations identified through cancer genome sequencing requires complementary approaches to interpret their significance and interactions. Here we developed a novel whole-body insertional mutagenesis screen in mice, which was designed for the discovery of Pten-cooperating tumor suppressors. Toward this aim, we coupled mobilization of a single-copy inactivating Sleeping Beauty transposon to Pten disruption within the same genome. The analysis of 278 transposition-induced prostate, breast and skin tumors detected tissue-specific and shared data sets of known and candidate genes involved in cancer...
May 2017: Nature Genetics
https://www.readbyqxmd.com/read/28301581/assessing-tn5-and-sleeping-beauty-for-transpositional-transgenesis-by-cytoplasmic-injection-into-bovine-and-ovine-zygotes
#14
R J Bevacqua, R Fernandez-Martin, N G Canel, A Gibbons, D Texeira, F Lange, G Vans Landschoot, V Savy, O Briski, M I Hiriart, E Grueso, Z Ivics, O Taboga, W A Kues, S Ferraris, D F Salamone
Transgenic domestic animals represent an alternative to bioreactors for large-scale production of biopharmaceuticals and could also provide more accurate biomedical models than rodents. However, their generation remains inefficient. Recently, DNA transposons allowed improved transgenesis efficiencies in mice and pigs. In this work, Tn5 and Sleeping Beauty (SB) transposon systems were evaluated for transgenesis by simple cytoplasmic injection in livestock zygotes. In the case of Tn5, the transposome complex of transposon nucleic acid and Tn5 protein was injected...
2017: PloS One
https://www.readbyqxmd.com/read/28295539/a-bibliometric-analysis-of-the-journal-of-advanced-nursing-1976-2015
#15
Danica Železnik, Helena Blažun Vošner, Peter Kokol
BACKGROUND: Bibliometric studies of single journals have been performed, but to the best of our knowledge, bibliometric analysis and bibliometric mapping have not yet been used to analyse the literature production of the Journal of Advanced Nursing. AIM: The aim of this study was to examine the publication characteristics and development of Journal of Advanced Nursing during its 40-year history. DESIGN/METHOD: Using descriptive bibliometrics, we studied the dynamics and trend patterns of literature production and identified document types and the most prolific authors, papers, institutions and countries...
March 15, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28284560/computational-discovery-of-niclosamide-ethanolamine-a-repurposed-drug-candidate-that-reduces-growth-of-hepatocellular-carcinoma-cells-in%C3%A2-vitro-and-in-mice-by-inhibiting-cell-division-cycle-37-signaling
#16
Bin Chen, Wei Wei, Li Ma, Bin Yang, Ryan M Gill, Mei-Sze Chua, Atul J Butte, Samuel So
BACKGROUND & AIMS: Drug repositioning offers a shorter approval process than new drug development. We therefore searched large public datasets of drug-induced gene expression signatures to identify agents that might be effective against hepatocellular carcinoma (HCC). METHODS: We searched public databases of messenger RNA expression patterns reported from HCC specimens from patients, HCC cell lines, and cells exposed to various drugs. We identified drugs that might specifically increase expression of genes that are down-regulated in HCCs and reduce expression of genes up-regulated in HCCs using a nonparametric, rank-based pattern-matching strategy based on the Kolmogorov-Smirnov statistic...
June 2017: Gastroenterology
https://www.readbyqxmd.com/read/28273073/src-2-mediated-coactivation-of-anti-tumorigenic-target-genes-suppresses-myc-induced-liver-cancer
#17
Shruthy Suresh, Deniz Durakoglugil, Xiaorong Zhou, Bokai Zhu, Sarah A Comerford, Chao Xing, Xian-Jin Xie, Brian York, Kathryn A O'Donnell
Hepatocellular carcinoma (HCC) is the fifth most common solid tumor in the world and the third leading cause of cancer-associated deaths. A Sleeping Beauty-mediated transposon mutagenesis screen previously identified mutations that cooperate with MYC to accelerate liver tumorigenesis. This revealed a tumor suppressor role for Steroid Receptor Coactivator 2/Nuclear Receptor Coactivator 2 (Src-2/Ncoa2) in liver cancer. In contrast, SRC-2 promotes survival and metastasis in prostate cancer cells, suggesting a tissue-specific and context-dependent role for SRC-2 in tumorigenesis...
March 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28270563/the-sleeping-beauty-kissed-awake-new-methods-in-electron-microscopy-to-study-cellular-membranes
#18
REVIEW
Petr Chlanda, Jacomine Krijnse Locker
Electron microscopy (EM) for biological samples, developed in the 1940-1950s, changed our conception about the architecture of eukaryotic cells. It was followed by a period where EM applied to cell biology had seemingly fallen asleep, even though new methods with important implications for modern EM were developed. Among these was the discovery that samples can be preserved by chemical fixation and most importantly by rapid freezing without the formation of crystalline ice, giving birth to the world of cryo-EM...
March 7, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28262785/a-novel-ideal-radionuclide-imaging-system-for-non-invasively-cell-monitoring-built-on-baculovirus-backbone-by-introducing-sleeping-beauty-transposon
#19
Jing Lv, Yu Pan, Huijun Ju, Jinxin Zhou, Dengfeng Cheng, Hongcheng Shi, Yifan Zhang
Sleeping Beauty (SB) transposon is an attractive tool in stable transgene integration both in vitro and in vivo; and we introduced SB transposon into recombinant sodium-iodide symporter baculovirus system (Bac-NIS system) to facilitate long-term expression of recombinant sodium-iodide symporter. In our study, two hybrid baculovirus systems (Bac-eGFP-SB-NeoR and Bac-NIS-SB-NeoR) were successfully constructed and used to infect U87 glioma cells. After G418 selection screening, the Bac-eGFP-SB-NeoR-U87 cells remained eGFP positive, at the 18(th) and 196(th) day post transfection (96...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28255185/sleeping-beauties-cited-in-patents-is-there-also-a-dormitory-of-inventions
#20
Anthony F J van Raan
A 'Sleeping Beauty in Science' is a publication that goes unnoticed ('sleeps') for a long time and then, almost suddenly, attracts a lot of attention ('is awakened by a prince'). In our foregoing study we found that roughly half of the Sleeping Beauties are application-oriented and thus are potential Sleeping Innovations. In this paper we investigate a new topic: Sleeping Beauties that are cited in patents. In this way we explore the existence of a dormitory of inventions. To our knowledge this is the first study of this kind...
2017: Scientometrics
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