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Epitranscriptomics & Cancer Adaptation : A.David

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Our research work focuses on the contribution of post-transcriptional mechanisms on cancer cell adaptation, in particular RNA epigenetic & translational control.

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Added by eric_julien
Group name EquipeEJ
Item Type Journal Article
Title Differentiated neuroprogenitor cells incubated with human or canine adenovirus, or lentiviral vectors have distinct transcriptome profiles
Creator Piersanti et al.
Author Stefania Piersanti
Author Letizia Astrologo
Author Valerio Licursi
Author Rossella Costa
Author Enrica Roncaglia
Author Sandy Ibanes
Author Miguel Chillon
Author Rodolfo Negri
Author Enrico Tagliafico
Author Eric J. Kremer
Author Isabella Saggio
Abstract Several studies have demonstrated the potential for vector-mediated gene transfer to the brain. Helper-dependent (HD) human (HAd) and canine (CAV-2) adenovirus, and VSV-G-pseudotyped self-inactivating HIV-1 vectors (LV) effectively transduce human brain cells and their toxicity has been partly analysed. However, their effect on the brain homeostasis is far from fully defined, especially because of the complexity of the central nervous system (CNS). With the goal of dissecting the toxicogenomic signatures of the three vectors for human neurons, we transduced a bona fide human neuronal system with HD-HAd, HD-CAV-2 and LV. We analysed the transcriptional response of more than 47,000 transcripts using gene chips. Chip data showed that HD-CAV-2 and LV vectors activated the innate arm of the immune response, including Toll-like receptors and hyaluronan circuits. LV vector also induced an IFN response. Moreover, HD-CAV-2 and LV vectors affected DNA damage pathways--but in opposite directions--suggesting a differential response of the p53 and ATM pathways to the vector genomes. As a general response to the vectors, human neurons activated pro-survival genes and neuron morphogenesis, presumably with the goal of re-establishing homeostasis. These data are complementary to in vivo studies on brain vector toxicity and allow a better understanding of the impact of viral vectors on human neurons, and mechanistic approaches to improve the therapeutic impact of brain-directed gene transfer.
Publication PloS One
Volume 8
Issue 7
Pages e69808
Date 2013
Journal Abbr PLoS ONE
Language eng
DOI 10.1371/journal.pone.0069808
ISSN 1932-6203
Library Catalog PubMed
Extra PMID: 23922808 PMCID: PMC3724896
Tags Adenoviruses, Canine, Adenoviruses, Human, Animals, Ataxia Telangiectasia Mutated Proteins, Cell Cycle, Cell Differentiation, Dogs, Down-Regulation, Endocytosis, Gene Expression Profiling, Genetic Vectors, Humans, Immunity, Interferons, Lentivirus, Mesencephalon, Neural Stem Cells, Neurons, Signal Transduction, Toll-Like Receptors, Transcriptional Activation, Transcriptome, Transduction, Genetic, Wnt Proteins
Date Added 2018/09/26 - 15:50:00
Date Modified 2018/09/26 - 15:50:00


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