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- W2022247839 abstract "As HIV continues to be a global public health problem with no effective vaccine available, new and innovative therapies, including HIV gene therapies, need to be developed. Due to low transduction efficiencies that lead to low in vivo gene marking, therapeutically relevant efficacy of HIV gene therapy has been difficult to achieve in a clinical setting. Methods to improve the transplantation of enriched populations of anti-HIV vector-transduced cells may greatly increase the in vivo efficacy of HIV gene therapies. Here we describe the development of preselective anti-HIV lentiviral vectors that allow for the purification of vector-transduced cells to achieve an enriched population of HIV-resistant cells. A selectable protein, human CD25, not normally found on CD34+ hematopoietic progenitor cells (HPCs), was incorporated into a triple combination anti-HIV lentiviral vector. Upon purification of cells transduced with the preselective anti-HIV vector, safety was demonstrated in CD34+ HPCs and in HPC-derived macrophages in vitro. Upon challenge with HIV-1, improved efficacy was observed in purified preselective anti-HIV vector-transduced macrophages compared to unpurified cells. These proof-of-concept results highlight the potential use of this method to improve HIV stem cell gene therapy for future clinical applications. Kalomoiris and colleagues develop and test an anti-HIV lentiviral vector based on the selectable marker CD25. The preselective vector allows for the purification of vector-transduced cells to achieve an enriched population of HIV-resistant cells. Upon purification of cells transduced with the preselective anti-HIV vector, safety was demonstrated in CD34+ hematopoietic progenitor cells (HPC) and in HPC-derived macrophages in vitro. Improved efficacy against HIV-1 challenge was observed in purified preselective anti-HIV vector-transduced macrophages." @default.
- W2022247839 created "2016-06-24" @default.
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- W2022247839 date "2012-12-01" @default.
- W2022247839 modified "2023-09-25" @default.
- W2022247839 title "CD25 Preselective Anti-HIV Vectors for Improved HIV Gene Therapy" @default.
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- W2022247839 doi "https://doi.org/10.1089/hgtb.2012.142" @default.
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