Capsid-Free AAV Vectors for Gene Delivery and Their Use for Gene Therapy

The invention concerns novel capsid-free AAV vectors that can be used for gene delivery and gene therapy applications. The invention provides for a linear nucleic acid molecule comprising in this order: a first adeno-associated virus (AAV) inverted terminal repeat (ITR), a nucleotide sequence of interest, and a second AAV ITR, wherein said nucleic acid molecule is devoid of AAV capsid protein coding sequences. The said nucleic acid molecule can be applied to a host at repetition without eliciting an immune response. Methods of producing and purifying this nucleic acid molecule, as well as its use for gene transfer and gene therapy are also described.

Potential Commercial Applications:		Competitive Advantages:
The commercial applications of the technology relate to the field of gene therapy. It may offer significant advantages compared to existing methods of gene delivery and gene therapy.		The AAV vectors described in the invention devoid the AAV capsid proteins and thus are not exposed to the adverse effects caused by immunogenicity. In contrast to the use of plasmid DNA for gene delivery, the AAV DNA of the invention seems to confer greater stability in cell nuclei, allowing prolonged expression compared to plasmid DNA. The vector DNA of the invention is not limited in size to the packageable size genome. The production of the AAV DNA vector is economical, simple and provides high yields.

Inventors:

Robert Kotin (NHLBI)  ➽ more inventions...

Lina Li (NHLBI)  ➽ more inventions...

Luis Garcia

Cyriaque Beley

Thomas Voit


Intellectual Property:
US Pat: 9,598,703 issued 2017-03-21
PCT Application No. PCT/EP2012/054303 filed on 2012-03-12
US Application No. 61/452,071 filed on 2011-03-11
and various international counterparts

Publications:
Li L, et al. PMID 23936358

Licensing Contact:
John Devany,
Email: john.devany@nih.gov
Phone: 301-594-4090

OTT Reference No: E-241-2010-0
Updated: Oct 12, 2016