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Translational Medical Research Commons™
Open Access. Powered by Scholars. Published by Universities.®
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Articles 1 - 5 of 5
Full-Text Articles in Translational Medical Research
Epigenetic Alterations Mediate Ipsc Normalization Of Dna-Repair Expression And Tnr Stability In Huntington's Disease, Peter A. Mollica, Martina Zamponi, John Reid, Deepak Sharma, Alyson E. White, Roy C. Ogle, Robert D. Bruno, Patrick C. Sachs
Epigenetic Alterations Mediate Ipsc Normalization Of Dna-Repair Expression And Tnr Stability In Huntington's Disease, Peter A. Mollica, Martina Zamponi, John Reid, Deepak Sharma, Alyson E. White, Roy C. Ogle, Robert D. Bruno, Patrick C. Sachs
Medical Diagnostics & Translational Sciences Faculty Publications
Huntington's disease (HD) is a rare autosomal dominant neurodegenerative disorder caused by a cytosine-adenine-guanine (CAG) trinucleotide repeat (TNR) expansion within the HTT gene. The mechanisms underlying HD-associated cellular dysfunction in pluripotency and neurodevelopment are poorly understood. We had previously identified downregulation of selected DNA repair genes in HD fibroblasts relative to wild-type fibroblasts, as a result of promoter hypermethylation. Here, we tested the hypothesis that hypomethylation during cellular reprogramming to the induced pluripotent stem cell (iPSC) state leads to upregulation of DNA repair genes and stabilization of TNRs in HD cells. We sought to determine how the HD TNR region …
Genotype-Specific Insertion Of Cytotoxic Genetic Elements Into Cancer Cells, Ryan Englander
Genotype-Specific Insertion Of Cytotoxic Genetic Elements Into Cancer Cells, Ryan Englander
University Scholar Projects
The new gene editing system CRISPR/Cas9, composed of a complex composed of a guide RNA and the Cas9 endonuclease, promises to revolutionize biological research and potentially allow clinicians to directly modify patient DNA in vivo. While its applications in the treatment of genetic diseases and in modifying immune cells for immunotherapy are currently being explored, CRISPR/Cas9’s potential utility as a modular system for targeting tumor-specific mutated sequences has not as of yet been explored. While CRISPR/Cas9 is specific enough to target small insertions and deletions or gross chromosomal rearrangements, it is not specific enough to reliably restrict editing to …
Electrotransfer Of Different Control Plasmids Elicits Different Antitumor Effectiveness In B16.F10 Melanoma, Masa Bosnjak, Tanjo Jesenko, Urska Kamensek, Gregor Sersa, Jaka Lavrencak, Loree Heller, Maja Cemazar
Electrotransfer Of Different Control Plasmids Elicits Different Antitumor Effectiveness In B16.F10 Melanoma, Masa Bosnjak, Tanjo Jesenko, Urska Kamensek, Gregor Sersa, Jaka Lavrencak, Loree Heller, Maja Cemazar
Bioelectrics Publications
Several studies have shown that different control plasmids may cause antitumor action in different murine tumor models after gene electrotransfer (GET). Due to the differences in GET protocols, plasmid vectors, and experimental models, the observed antitumor effects were incomparable. Therefore, the current study was conducted comparing antitumor effectiveness of three different control plasmids using the same GET parameters. We followed cytotoxicity in vitro and the antitumor effect in vivo after GET of control plasmids pControl, pENTR/U6 scr and pVAX1 in B16.F10 murine melanoma cells and tumors. Types of cell death and upregulation of selected cytosolic DNA sensors and cytokines were …
Vestibular Dysfunction, Altered Macular Structure And Trait Localization In A/J Inbred Mice, Sarath Vijayakumar, Teresa E. Lever, Jessica Pierce, Xing Zhao, David Bergstrom, Yunxia Wang Lundberg, Timothy A. Jones, Sherri M. Jones
Vestibular Dysfunction, Altered Macular Structure And Trait Localization In A/J Inbred Mice, Sarath Vijayakumar, Teresa E. Lever, Jessica Pierce, Xing Zhao, David Bergstrom, Yunxia Wang Lundberg, Timothy A. Jones, Sherri M. Jones
Department of Special Education and Communication Disorders: Faculty Publications
A/J mice develop progressive hearing loss that begins before one month of age and is attributed to cochlear hair cell degeneration. Screening tests indicated this strain also develops early onset vestibular dysfunction and has otoconial deficits. The purpose of this study was to characterize the vestibular dysfunction and macular structural pathology over the lifespan of A/J mice. Vestibular function was measured using linear vestibular evoked potentials (VsEPs). Macular structural pathology was evaluated using light microscopy, SEM, TEM, confocal microscopy and Western blotting. Individually, vestibular functional deficits in mice ranged from mild to profound. On average, A/J mice had significantly reduced …
Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer
Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer
University Scholar Projects
Somatic mutations may drive tumorigenesis or lead to new, immunogenic epitopes (neoantigens). The immune system is thought to represses neoplastic growths through the recognition of neoantigens presented only by tumor cells. To study mutations as well as the immune response to mutation-generated antigens, we have created a conditional knockin mouse line with a gene encoding, 5’ to 3’, yellow fluorescent protein (YFP), ovalbumin (which is processed to the immunologically recognizable peptide, SIINFEKL), and cyan fluorescent protein (CFP), or, YFP-ovalbumin-CFP. A frame shift mutation has been created at the 5’ end of the ovalbumin gene, hence YFP should always be expressed, …