Pioneering Study Shows Drug Can Purge Dormant HIV

Name ______Per ______AoW #1 HIV drug

Web address: http://www.sciencedaily.com/releases/2012/07/ 120725132204.htm Pioneering Study Shows Drug Can Purge Dormant HIV

Researchers from the University of North Carolina at Chapel Hill have published pioneering research showing that a drug used to treat certain types of lymphoma was able to dislodge hidden virus in patients receiving treatment for HIV. (Credit: © rangizzz / Fotolia) ScienceDaily (July 25, 2012) — Researchers from the University of North Carolina at Chapel Hill have published pioneering research showing that a drug used to treat certain types of lymphoma was able to dislodge hidden virus in patients receiving treatment for HIV. The existence of persistent reservoirs of dormant HIV in the immune system that are not attacked by anti-AIDS drugs is believed to be a major reason why infection reemerges once patients stop taking their medication. The disruption and clearance of these reservoirs is critical to finding a cure for AIDS. The study was published in the July 25 issue of the scientific journal, Nature. Researchers at UNC, working in collaboration with scientists from the Harvard School of Public Health, National Cancer Institute, Merck, and the University of California at San Diego, undertook a series of experiments designed to evaluate the potential of the drug vorinostat, a deacetylase inhibitor that is used to treat some types of lymphoma, to activate and disrupt the dormant virus. Initially, laboratory experiments measuring active HIV levels in CD4+ T cells, which are specialized white blood cells that the virus uses to replicate, showed that vorinostat unmasked the hidden virus in these cells. Subsequently, vorinostat was administered to eight HIV-infected men who were medically stable on antiretroviral therapy and the levels of active HIV virus were measured and compared to the levels prior to administration. Those patients receiving vorinostat showed an average 4.5-fold increase in the levels of HIV RNA in CD4+ T cells, evidence that the virus was being unmasked. This is the first published study to show the potential for deacetylase inhibitors to attack latency within dormant virus pools in a translational clinical study. "This work provides compelling evidence for a new strategy to directly attack and eradicate latent HIV infection," said David Margolis, MD, professor of medicine, microbiology and immunology, and epidemiology at the University of North Carolina at Chapel Hill. Targeting latency is the first step on a path that may lead to a cure. "Long-term, widespread use of antiretrovirals has personal and public health consequences, including side effects, financial costs, and community resistance," said Margolis, who led the study. "We must seek other ways to end the epidemic, and this research provides new hope for a strategy to eradicate HIV completely from the body." Early results of this study were first presented and reported in March 2012 at the Conference on Retroviruses and Opportunistic Infections in Seattle, Washington. The research conducted is part of a UNC-led consortium, the Collaboratory of AIDS Researchers for Eradication (CARE), funded by the National Institute of Allergy and Infectious Diseases. The consortium is administered by the North Carolina Translational and Clinical Sciences (NC TraCS) Institute at UNC, one of 60 medical research institutions in the US working to improve biomedical research through the NIH Clinical and Translational Science Awards (CTSA) program. Funding for this research was provided by the National Institutes of Health, Merck & Co., and the James B. Pendleton Charitable Trust.

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Comprehension Questions:

Fill in the blank

1.) What does the acronym HIV stand for? ______

2.) What does the acronym AIDS stand for? ______

3.) What is dormant HIV? ______

4.) How do you contract the HIV virus?

a. ______

2 b. ______

c. ______

Paragraph form- each response must be at least one paragraph in length to receive full credit. 4- 6 sentences.

5.) How have scientist been able to slow down the affects of HIV and AIDS?

6.) Research and describe Ryan White. Who was Ryan White? How did he contract the AIDS virus? Why was he important to the education of people living with his condition? (Must be at least one paragraph in length.

Exit ticket task: Describe the history of HIV/AIDS in your lifespan. Research information about this disease on your laptop and include research found/statistics within your response. Must be at least one page in length and in MLA format.