Vector and Helper Genome Rearrangements Occur During Production of Helper-Dependent Adenoviral Vectors
نویسندگان
چکیده
منابع مشابه
Helper virus-mediated downregulation of transgene expression permits production of recalcitrant helper-dependent adenoviral vector
Helper-dependent adenoviral vectors (HDAd) that express certain transgene products are impossible to produce because the transgene product is toxic to the producer cells, especially when made in large amounts during vector production. Downregulating transgene expression from the HDAd during vector production is a way to solve this problem. In this report, we show that this can be accomplished b...
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Adenoviruses (Ads) infect a broad range of tissue types, and derived vectors have been extensively used for gene therapy. Helper-dependent Ad vectors (HDAds), devoid of viral coding sequences, allow for insertion of large or multiple transgenes in a single vector and have been preclinically used for the study of genetic disorders. However, the clinical application of Ad vectors including HDAds ...
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In the majority of potential applications gene therapy will require an effective transfer of a transgene in vivo resulting in high-level and long-term transgene expression, all in the absence of significant toxicity or inflammatory responses. The most efficient vehicles for delivery of foreign genes to the target tissues are modified adenoviruses. Adenoviral vectors of the first generation, des...
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Adenoviral (Ad)-mediated in vivo gene transfer and expression is limited in part by cellular immune responses to viralencoded proteins. In an attempt to diminish these responses, we have previously developed and described helperdependent (HD) Ad vectors in which the viral protein coding sequences are completely deleted. These vectors provided efficient delivery, and greater safety which represe...
متن کاملImproved vascular gene transfer with a helper-dependent adenoviral vector.
BACKGROUND Adenoviral vectors are the most widely used agents for vascular gene transfer. However, the utility of adenoviral vectors for vascular gene transfer is limited by brevity of expression and by the induction of a significant host inflammatory response. Third-generation or "helper-dependent" adenoviral vectors have achieved prolonged recombinant gene expression in liver and muscle with ...
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ژورنال
عنوان ژورنال: Human Gene Therapy Methods
سال: 2013
ISSN: 1946-6536,1946-6544
DOI: 10.1089/hgtb.2012.198