The main objectives of the Vector Core are to provide high quality self-complementary (sc) and single-stranded (ss) rAAV1 vectors and serologically screen NHP animals suitable for rAAV1 anti-viral studies. We will accomplish these goals through the following specific aims:
Aim 1. To design, create, produce and quality control test scAAV1 vector lots at different scales with a variety of transgenes and expression cassettes to serve the specific needs of other investigators of this program project. More specifically, 120 rhesus macaques will be enrolled for different studies over 5 years and hundreds of mice will used for pre-macaque evaluation. In average, we estimate that 15-20 vector lots will be produced annually to meet the needs of those studies.
Aim 2. To screen NHP populations for pre-existing immunity against AAV1 by using both in vitro and in vivo neutralizing antibody (NAB) assays to select AAV1-NAB free animals for vaccine and therapeutic studies. Pre-screening of NHP population to select the animals without preexisting neutralizing antibody (NAB) to rAAV1 is essential for rAAV1-mediated anti-HIV immunoadhesin gene transfer. Our data suggested that the serological prevalence of primate-derived AAVs in NHP populations ranges from 60-80%. This implies that we may have to screen more than 360 animals to identify 120 animals free of AAV1 NAB.
Aim 3. To develop novel and scalable rAAV production method for larger scale translational NHP studies and future clinical development of rAAV1-based anti- HIV vaccine and therapeutics. Our current AAV production system should meet the vector needs in the early stage of this program project. However, large scale vector production may become a bottle neck for larger translational NHP studies and future clinical development as well. We will utilize our extensive experience in developing various vector packaging cell lines and infection-based vector production system to develop a 293 cell infection-based novel and scalable production method to overcome this limitation.

Public Health Relevance

The Vector Core focuses on design, production and QC testing of rAAV- based antiviral therapeutics for non-human primate studies to protect them from SIV infection. These studies will help develop and evaluate therapeutics that may be used to control HIV-1 in humans.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Program Projects (P01)
Project #
7P01AI100263-02
Application #
8574234
Study Section
Special Emphasis Panel (ZAI1-RB-A)
Project Start
Project End
Budget Start
2013-04-01
Budget End
2014-03-31
Support Year
2
Fiscal Year
2013
Total Cost
$240,248
Indirect Cost
Name
Scripps Florida
Department
Type
DUNS #
148230662
City
Jupiter
State
FL
Country
United States
Zip Code
33458
Wang, Dan; Zhong, Li; Nahid, M Abu et al. (2014) The potential of adeno-associated viral vectors for gene delivery to muscle tissue. Expert Opin Drug Deliv 11:345-64
Wang, Dan; Gao, Guangping (2014) State-of-the-art human gene therapy: part I. Gene delivery technologies. Discov Med 18:67-77
Quinlan, Brian D; Joshi, Vinita R; Gardner, Matthew R et al. (2014) A double-mimetic peptide efficiently neutralizes HIV-1 by bridging the CD4- and coreceptor-binding sites of gp120. J Virol 88:3353-8
Wang, Dan; Gao, Guangping (2014) State-of-the-art human gene therapy: part II. Gene therapy strategies and clinical applications. Discov Med 18:151-61
Gao, Kai; Li, Mengxin; Zhong, Li et al. (2014) Empty Virions In AAV8 Vector Preparations Reduce Transduction Efficiency And May Cause Total Viral Particle Dose-Limiting Side-Effects. Mol Ther Methods Clin Dev 1:20139
Quinlan, Brian D; Gardner, Matthew R; Joshi, Vinita R et al. (2013) Direct expression and validation of phage-selected peptide variants in mammalian cells. J Biol Chem 288:18803-10
Stoica, Lorelei; Ahmed, Seemin S; Gao, Guangping et al. (2013) Gene transfer to the CNS using recombinant adeno-associated virus. Curr Protoc Microbiol Chapter 14:Unit14D.5
Gruntman, Alisha M; Bish, Lawrence T; Mueller, Christian et al. (2013) Gene transfer in skeletal and cardiac muscle using recombinant adeno-associated virus. Curr Protoc Microbiol Chapter 14:Unit 14D.3
Venkatesh, Aditya; Ma, Shan; Langellotto, Fernanda et al. (2013) Retinal gene delivery by rAAV and DNA electroporation. Curr Protoc Microbiol Chapter 14:Unit 14D.4
Ahmed, Seemin Seher; Li, Jia; Godwin, Jonathan et al. (2013) Gene transfer in the liver using recombinant adeno-associated virus. Curr Protoc Microbiol Chapter 14:Unit14D.6