Adeno‐associated Viral Vectors in Gene Therapy


Recombinant vectors based on a nonpathogenic human parvovirus, the Adeno‐associated virus 2 (AAV), have gained attention as a potentially safe and useful alternative to the more commonly used retroviral and adenoviral vectors. AAV vectors are currently in use in phase I/II clinical trials for gene therapy of a number of diseases such as cystic fibrosis, α‐1 antitrypsin deficiency, muscular dystrophy, Batten disease and Parkinson disease. Several salient features of AAV vectors and the availability of promising results with animal models of human diseases provide the impetus to suggest that they will be used in potential gene therapy of a number of human diseases, both genetic and acquired, in not too distant a future.

Keywords: AAV; viral vectors; gene expression; gene therapy

Figure 1.

Schematic structures of a conventional, single‐stranded (ss) and a double‐stranded (ds), self‐complementary AAV vector. The approximate packaging capacity of each vector is also indicated.



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Zhong, Li, and Srivastava, Arun(Sep 2007) Adeno‐associated Viral Vectors in Gene Therapy. In: eLS. John Wiley & Sons Ltd, Chichester. [doi: 10.1002/9780470015902.a0005738.pub2]