Abstract

The broad purpose of this program-project is to show that advances AAV-based gene therapy enable stable, long-term suppression of HIV-1 replication. Our immediate goal is to stably suppress an ongoing SHIV-infection in rhesus macaques, using specific combinations of antiviral proteins delivered by self-complementary AAV vectors. Any effective therapy for HIV-1 infection has to solve the problem of viral escape. This project addresses the problem of viral escape from a cocktail of antibodies iteratively, by rapidly identifying viral escape pathways and adjusting these cocktails so that these pathways are blocked. We are aided in this effort by a variant of CD4-Ig, fused to a 14-amino-acid peptide that closely mimics a high-affinity binding region of CCR5. This enhanced CD4-Ig (

Public Health Relevance

Adeno-associated virus (AAV) vectors expressing HIV-1 neutralizing antibodies have the potential to replace current anti-retroviral combination therapies. However, the problem of viral escape from these protein inhibitors must be solved before AAV expressed transgenes can be useful therapeutically. In this project we address this critical problem of viral escape, and improve several HIV-1 neutralizing antibodies.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Program Projects (P01)
Project #
7P01AI100263-02
Application #
8574232
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
$691,130
Indirect Cost
$267,897

  Institution

Name
Scripps Florida
Department
Type
DUNS #
148230662
City
Jupiter
State
FL
Country
United States
Zip Code
33458

  Publications

Wang, Dan; Li, Jia; Song, Chun-Qing et al. (2018) Cas9-mediated allelic exchange repairs compound heterozygous recessive mutations in mice. Nat Biotechnol 36:839-842
Fetzer, Ina; Gardner, Matthew R; Davis-Gardner, Meredith E et al. (2018) eCD4-Ig Variants That More Potently Neutralize HIV-1. J Virol 92:
Yoon, Yeonsoo; Wang, Dan; Tai, Phillip W L et al. (2018) Streamlined ex vivo and in vivo genome editing in mouse embryos using recombinant adeno-associated viruses. Nat Commun 9:412
Zhang, Wei; Li, Linjing; Su, Qin et al. (2018) Gene Therapy Using a miniCEP290 Fragment Delays Photoreceptor Degeneration in a Mouse Model of Leber Congenital Amaurosis. Hum Gene Ther 29:42-50
Tai, Phillip W L; Xie, Jun; Fong, Kaiyuen et al. (2018) Adeno-associated Virus Genome Population Sequencing Achieves Full Vector Genome Resolution and Reveals Human-Vector Chimeras. Mol Ther Methods Clin Dev 9:130-141
Mou, Huihui; Zhong, Guocai; Gardner, Matthew R et al. (2018) Conditional Regulation of Gene Expression by Ligand-Induced Occlusion of a MicroRNA Target Sequence. Mol Ther 26:1277-1286
Wang, Dan; Gao, Guangping (2018) Taking a Hint from Structural Biology: To Better Understand AAV Transport across the BBB. Mol Ther 26:336-338
Wang, Dan; Li, Jia; Tran, Karen et al. (2018) Slow Infusion of Recombinant Adeno-Associated Viruses into the Mouse Cerebrospinal Fluid Space. Hum Gene Ther Methods 29:75-85
Wang, Dan; Li, Shaoyong; Gessler, Dominic J et al. (2018) A Rationally Engineered Capsid Variant of AAV9 for Systemic CNS-Directed and Peripheral Tissue-Detargeted Gene Delivery in Neonates. Mol Ther Methods Clin Dev 9:234-246
Lu, Yi; Tai, Phillip W L; Ai, Jianzhong et al. (2018) Transcriptome Profiling of Neovascularized Corneas Reveals miR-204 as a Multi-target Biotherapy Deliverable by rAAVs. Mol Ther Nucleic Acids 10:349-360

Showing the most recent 10 out of 46 publications