Title |
CNS-specific regulatory elements in brain-derived HIV-1 strains affect responses to latency-reversing agents with implications for cure strategies
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Published in |
Molecular Psychiatry, August 2015
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DOI | 10.1038/mp.2015.111 |
Pubmed ID | |
Authors |
L R Gray, D Cowley, C Welsh, H K Lu, B J Brew, S R Lewin, S L Wesselingh, P R Gorry, M J Churchill |
Abstract |
Latency-reversing agents (LRAs), including histone deacetylase inhibitors (HDACi), are being investigated as a strategy to eliminate latency in HIV-infected patients on suppressive antiretroviral therapy. The effectiveness of LRAs in activating latent infection in HIV strains derived from the central nervous system (CNS) is unknown. Here we show that CNS-derived HIV-1 strains possess polymorphisms within and surrounding the Sp transcription factor motifs in the long terminal repeat (LTR). These polymorphisms result in decreased ability of the transcription factor specificity protein 1 to bind CNS-derived LTRs, reducing the transcriptional activity of CNS-derived viruses. These mutations result in CNS-derived viruses being less responsive to activation by the HDACi panobinostat and romidepsin compared with lymphoid-derived viruses from the same subjects. Our findings suggest that HIV-1 strains residing in the CNS have unique transcriptional regulatory mechanisms, which impact the regulation of latency, the consideration of which is essential for the development of HIV-1 eradication strategies.Molecular Psychiatry advance online publication, 25 August 2015; doi:10.1038/mp.2015.111. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 1 | 33% |
Australia | 1 | 33% |
Unknown | 1 | 33% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 67% |
Practitioners (doctors, other healthcare professionals) | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 37 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 9 | 24% |
Student > Bachelor | 7 | 19% |
Student > Ph. D. Student | 5 | 14% |
Professor > Associate Professor | 4 | 11% |
Other | 1 | 3% |
Other | 2 | 5% |
Unknown | 9 | 24% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 7 | 19% |
Agricultural and Biological Sciences | 4 | 11% |
Medicine and Dentistry | 4 | 11% |
Immunology and Microbiology | 4 | 11% |
Neuroscience | 3 | 8% |
Other | 4 | 11% |
Unknown | 11 | 30% |