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Investigating The Ubiquitin-Proteasome System For Targeted Reversal of HIV-1 Latency
Başlık:
Investigating The Ubiquitin-Proteasome System For Targeted Reversal of HIV-1 Latency
Yazar:
Russnak, Timothy, author.
ISBN:
9780438099708
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (182 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Özet:
HIV is a worldwide epidemic, remaining the ever-present specter among all matters regarding blood or other bodily fluids, such as sexual intercourse, healthcare, blood transfusions, or even surgery, particularly in resource-poor areas. While antiretroviral drug therapy is highly successful in suppressing the virus and preventing transmission, it cannot cure the infection due to latency -- the ability of HIV to go into a silent state within cells; once drug therapy is stopped, reactivating latent virus will cause a surge of the viral load within days or weeks. Current drug therapies do not act on this latent reservoir, necessitating lifelong adherence to medication, which is both extremely costly and comes with negative side effects. The mainstay of research into HIV latency deals with teasing apart the mechanisms involved in establishing and maintaining latency, in the hopes of finding drug compounds which can efficiently reverse latency and thus purge the body of hidden HIV.
In searching for cellular pathways involved in latency, our lab has employed a genome-wide negative-selection screen, which indicated that the ubiquitin-proteasome system plays a role in maintaining latency. This led us to discover that proteasome inhibitors act as bifunctional antagonists of HIV, both reversing the latent state and reducing infectivity of virions. We went on to identify the specific ubiquitin-proteasome pathway that is involved in maintaining latency. We then investigated the activity of a small-molecule inhibitor of one component of the ubiquitin-proteasome system, showing its ability to reactivate latent HIV in both a primary cell model and in cells taken from aviremic HIV+ patients. These results are a proof-of-concept that inhibition of a specific ubiquitin-proteasome pathway can allow for specific reversal of HIV latency.
Notlar:
School code: 0190
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(687295.1) | 687295-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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