Chapter title |
LGIT In Vitro Latency Model in Primary and T Cell Lines to Test HIV-1 Reactivation Compounds
|
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Chapter number | 17 |
Book title |
HIV Protocols
|
Published in |
Methods in molecular biology, January 2016
|
DOI | 10.1007/978-1-4939-3046-3_17 |
Pubmed ID | |
Book ISBNs |
978-1-4939-3045-6, 978-1-4939-3046-3
|
Authors |
Ulrike Jung, Mayumi Takahashi, John J. Rossi, John C. Burnett, Jung, Ulrike, Takahashi, Mayumi, Rossi, John J., Burnett, John C. |
Abstract |
Persistent latent HIV-1 reservoirs pose a major barrier for combinatorial antiretroviral therapy (cART) to achieve eradication of the virus. A variety of mechanisms likely contribute to HIV-1 persistence, including establishment of post-integration latency in resting CD4+ T-lymphocytes, the proliferation of these latently infected cells, and the induced or spontaneous reactivation of latent virus. To elucidate the mechanisms of latency and to investigate therapeutic strategies for reactivating and purging the latent reservoir, investigators have developed in vitro models of HIV-1 latency using primary CD4+ T-lymphocytes and CD4+ T-cell lines. Several types of in vitro latency models range from replication-competent to single-round, replication-deficient viruses exhibiting different degrees of viral genomic deletion. Working under the hypothesis that HIV-1 post-integration latency is directly linked to HIV-1 promoter activity, which can be obscured by additional proteins expressed during replication, we focus here on the creation of latently infected primary human T-cells and cell lines through the single-round, replication deficient HIV-1 LGIT model. In this model the long terminal repeat (LTR) of the HIV-1 virus drives a cassette of GFP-IRES-Tat that allows testing of reactivating components and initiates a positive feedback loop through Tat expression. |
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