Journal
TRENDS IN BIOTECHNOLOGY
Volume 27, Issue 9, Pages 503-511Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tibtech.2009.06.004
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Funding
- Fundacao para a Ciencia e a Tecnologia [POCI/BIO/55799/2004, BD/22320/2005]
- MIT-Portugal
- Fundação para a Ciência e a Tecnologia [POCI/BIO/55799/2004] Funding Source: FCT
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The global increase in the number of applications involving therapeutic plasmid DNA (pDNA) is creating a need for large amounts of highly stable and purified molecules. One of the main obstacles during the developmental stages of a new therapeutic DNA molecule involves tackling a wide array of structural instability events occurring in/with pDNA and therefore assuring its structural integrity. This review focuses on major instability determinants in pDNA. Their elimination could be considered an important step towards the design of safer and more efficient plasmid molecules. Particular emphasis is given to mutations triggered by the presence of repeated sequences, instability events occurring during plasmid intracellular routing, instability mediated by insertion sequences and host genome integration.
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