Featured Research

from universities, journals, and other organizations

HIV injection could someday replace daily pill regimen

Date:
July 18, 2012
Source:
University of Nebraska Medical Center (UNMC)
Summary:
It's been a good week forHIV/AIDS breakthroughs. Tuesday, the FDA approved Truvada. Now, a research team has developed a long-lasting injection that could someday replace the daily regimen of pills faced by patients.

This has been a good week for breakthroughs in HIV/AIDS.

Earlier this week, the Food and Drug Administration approved a daily pill, Truvada, which reduces the risk of HIV infection. Now, a University of Nebraska Medical Center research team's progress toward developing weekly or twice-monthly injectable antiretroviral therapy (ART) nanomedicines for patients with human immunodeficiency virus (HIV) infection will be highlighted as the cover story in the Journal of Infectious Diseases.

A long-acting, nanoformulated ART (nanoART) would be a substantive improvement over daily and sometimes more complex regimen of pills, said Howard Gendelman, M.D., the lead investigator on the development of nanoART for HIV/AIDS and professor and chairman of the department of pharmacology and experimental neuroscience (PEN) at UNMC.

The journal article hails the successful testing of UNMC's ART injectables as treatment of HIV-infected mice and in preventing new infections.

"We actually followed the process exactly as we would with a person -- and it worked," Dr. Gendelman said. "This is all very exciting. Although there are clear pitfalls ahead and the medicines are not yet ready for human use, the progress is undeniable."

Dr. Gendelman said one of the project's real advantages is in the nanoformulations. "NanoART is cell directed," he said. "So when you take a pill, the pill travels throughout the body indiscriminately. In these nanomedicines, you can use the body's own cells to direct the medicine where you want it to go."

The UNMC project directs the medicine to the monocyte-macrophage, cells which carry the drug particle to sites of the body specifically where HIV grows.

"You're using the cell that is the target for the virus to deliver the drug against the virus," Dr. Gendelman said.

Dr. Gendelman calls the progress made "a Nebraska invention," as it involved so many of the state's scientists in different disciplines working together. He said this marks the third article his team has had published in major biomedical journals in recent months with all the articles related to the nanomedicine injectable therapy.

The advance to use the new nanomedicines to specifically target reservoirs for viral infection was explained by Georgette Kanmogne, Ph.D., associate professor in PEN, lead investigator, and published in the International Journal of Nanomedicine. This paper describes how these drug inventions can enter the brain and ameliorate nervous system disease.

The third study, published in Trends in Neurosciences, is a research area led by Larisa Poluektova, M.D., Ph.D., associate professor in PEN, and the developer of the mouse models of HIV/AIDS used in study.

"We work as a team and work effectively as a team with different scientists with very different disciplines involved in different aspects of the work," Dr. Gendelman said.

This research team is made up of two UNMC colleges, four departments and two universities. The drugs were developed in UNMC labs using nanoformulation approaches.

The ART tests in mouse models were made possible by UNMC's development of specially designed mice. Because mice cannot catch human HIV, UNMC has developed mice with the equivalent of a human immune system. Such a mouse model enables advanced tests on HIV and its treatment.

UNMC is one of a handful of research institutions in the world to have developed such a mouse model, Dr. Poluektova said.

Dr. Kanmogne said an ART injection would be an improvement for HIV patients because it would produce all the medicine needed without the complications of remembering to take pills daily, drug toxicities, buildup of viral resistance, intestinal problems, or the social stigma of pills.

An injectable nanoformulated drug could also be more available for worldwide distribution as the toxicity profiles tested so far are limited, Dr. Gendelman said.

The work was a team effort amongst many and notably Upal Roy, Ph.D., and JoEllyn McMillan, Ph.D., both PEN researchers.

The work will be presented at the forthcoming meeting for the American Society for Nanomedicine, where Dr. Gendelman will serve as conference chair.


Story Source:

The above story is based on materials provided by University of Nebraska Medical Center (UNMC). Note: Materials may be edited for content and length.


Journal Reference:

  1. U. Roy, J. McMillan, Y. Alnouti, N. Gautum, N. Smith, S. Balkundi, P. Dash, S. Gorantla, A. Martinez-Skinner, J. Meza, G. Kanmogne, S. Swindells, S. M. Cohen, R. L. Mosley, L. Poluektova, H. E. Gendelman. Pharmacodynamic and Antiretroviral Activities of Combination Nanoformulated Antiretrovirals in HIV-1-Infected Human Peripheral Blood Lymphocyte-Reconstituted Mice. Journal of Infectious Diseases, 2012; DOI: 10.1093/infdis/jis395

Cite This Page:

University of Nebraska Medical Center (UNMC). "HIV injection could someday replace daily pill regimen." ScienceDaily. ScienceDaily, 18 July 2012. <www.sciencedaily.com/releases/2012/07/120718172831.htm>.
University of Nebraska Medical Center (UNMC). (2012, July 18). HIV injection could someday replace daily pill regimen. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2012/07/120718172831.htm
University of Nebraska Medical Center (UNMC). "HIV injection could someday replace daily pill regimen." ScienceDaily. www.sciencedaily.com/releases/2012/07/120718172831.htm (accessed October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Cases Keep Coming for Monrovia's Island Hospital

Ebola Cases Keep Coming for Monrovia's Island Hospital

AFP (Oct. 1, 2014) A look inside Monrovia's Island Hospital, a key treatment centre in the fight against Ebola in Liberia's capital city. Duration: 00:34 Video provided by AFP
Powered by NewsLook.com
Ebola Puts Stress on Liberian Health Workers

Ebola Puts Stress on Liberian Health Workers

AP (Oct. 1, 2014) The Ebola outbreak is putting stress on first responders in Liberia. Ambulance drivers say they are struggling with chronic shortages of safety equipment and patients who don't want to go to the hospital. (Oct. 1) Video provided by AP
Powered by NewsLook.com
Doctors Reassure Public Ebola Patient Won't Cause Outbreak

Doctors Reassure Public Ebola Patient Won't Cause Outbreak

Newsy (Sep. 30, 2014) After the announcement that the first U.S. patient had been diagnosed with Ebola, doctors were quick to say a U.S. outbreak is highly unlikely. Video provided by Newsy
Powered by NewsLook.com
TX Hospital Confirms Patient Admitted With Ebola

TX Hospital Confirms Patient Admitted With Ebola

AP (Sep. 30, 2014) Medical officials from Texas Health Presbyterian Hospital confirm they are treating a patient with the Ebola virus, the first case found in the US. (Sept. 30 Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins