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- Title
Long-Term Inhibition of HIV-1 Infection in Primary Hematopoietic Cells by Lentiviral Vector Delivery of a Triple Combination of Anti-HIV shRNA, Anti-CCR5 Ribozyme, and a Nucleolar-Localizing TAR Decoy
- Authors
Li, Ming-Jie; Kim, James; Li, Shirley; Zaia, John; Yee, Jiing-Kuan; Anderson, Joseph; Akkina, Ramesh; Rossi, John J.
- Abstract
Abstract: Combinatorial therapies for the treatment of HIV-1 infection have proven to be effective in reducing patient viral loads and slowing the progression to AIDS. We have developed a series of RNA-based inhibitors for use in a gene therapy-based treatment for HIV-1 infection. The transcriptional units have been inserted into the backbone of a replication-defective lentiviral vector capable of transducing a wide array of cell types, including CD34+ hematopoietic progenitor cells. The combinatorial therapeutic RNA vector harbors a U6 Pol III promoter-driven short hairpin RNA (shRNA) targeting the rev and tat mRNAs of HIV-1, a U6 transcribed nucleolar-localizing TAR RNA decoy, and a VA1-derived Pol III cassette that expresses an anti-CCR5 ribozyme. Each of these therapeutic RNAs targets a different gene product and blocks HIV infection by a distinct mechanism. Our results demonstrate that the combinatorial vector suppresses HIV replication long term in a more-than-additive fashion relative to the single shRNA or double shRNA/ribozyme or decoy combinations. Our data demonstrate the validity and efficacy of a combinatorial RNA-based gene therapy for the treatment of HIV-1 infection.
- Subjects
HIV infections; THERAPEUTICS; GENE therapy; LENTIVIRUS diseases
- Publication
Molecular Therapy, 2005, Vol 12, Issue 5, p900
- ISSN
1525-0016
- Publication type
Article
- DOI
10.1016/j.ymthe.2005.07.524