Biology News Net - AIDS & HIV

New synthetic molecules trigger immune response to HIV and prostate cancer

Fri, 06 Nov 2009 01:25:37 -0500

Researchers at Yale University have developed synthetic molecules capable of enhancing the body's immune response to HIV and HIV-infected cells, as well as to prostate cancer cells. Their findings, published online in the Journal of the American Chemical Society, could lead to novel therapeutic approaches for these diseases.

Sperm may play leading role in spreading HIV

Mon, 26 Oct 2009 22:13:17 -0500

Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting DCs, which carry the virus and potently pass it to T cells, sperm may play a leading role in spreading HIV. The article appears in the November 23, 2009 issue of the Journal of Experimental Medicine (online October 26).

Taking medicine for HIV proves hard to swallow for many people

Thu, 22 Oct 2009 23:49:04 -0500

Highly active antiretroviral therapy has increased the longevity and quality of life for people living with human immunodeficiency virus. But it requires strict adherence in taking the medicine, something that is extremely difficult for many individuals to do.

Research shows treating HIV-AIDS with interleukin-2 is ineffective

Thu, 15 Oct 2009 19:21:56 -0500

An international research team has demonstrated that treating HIV-AIDS with interleukin-2 (IL-2) is ineffective. As a result, the researchers recommend that clinical trials on this compound be stopped. Their finding was published in the New England Journal of Medicine in an article co-authored by 14 researchers, including Dr. Jean-Pierre Routy of the Research Institute of the McGill University Health Centre (RI-MUHC).

New chemically-activated antigen could expedite development of HIV vaccine

Mon, 21 Sep 2009 18:25:01 -0500

Scientists working to develop a vaccine for the human immunodeficiency virus (HIV) report they have created the first antigen that induces protective antibodies capable of blocking infection of human cells by genetically-diverse strains of HIV. The new antigen differs from previously-tested vaccines by virtue of its chemically-activated property that enables close sharing of electrons and produces strong covalent bonding. Researchers used a mouse model to generate the antibodies. The report by researchers at The University of Texas Health Science Center at Houston is online and will appear in a print issue of the Journal of Biological Chemistry in November.

2 new antibodies found to cripple HIV

Thu, 03 Sep 2009 19:46:24 -0500

Researchers at and associated with the International AIDS Vaccine Initiative (IAVI), at The Scripps Research Institute, and at the biotechnology companies Theraclone Sciences and Monogram Biosciences have discovered two powerful new antibodies to HIV that reveal what may be an Achilles heel on the virus. They published their work in Science this week.

Researchers induce HIV-neutralizing antibodies that recognize HIV-1 envelope protein, lipids

Tue, 01 Sep 2009 22:15:12 -0500

For the first time, researchers have experimentally induced antibodies that neutralize HIV-1 and simultaneously recognize both HIV-1 envelope protein and lipids. The results were reported by U.S. Military HIV Research Program (MHRP) researchers on Aug. 25 in the online version of AIDS, the official journal of the International AIDS Society.

Engineered protein-like molecule protects cells against HIV infection

Mon, 17 Aug 2009 19:20:40 -0500

With the help of the human immunodeficiency virus (HIV) and molecular engineering, researchers have designed synthetic protein-like mimics convincing enough to interrupt unwanted biological conversations between cells.

UNC researchers decode structure of an entire HIV genome

Wed, 05 Aug 2009 16:10:46 -0500

The structure of an entire HIV genome has been decoded for the first time by researchers at the University of North Carolina at Chapel Hill. The results have widespread implications for understanding the strategies that viruses, like the one that causes AIDS, use to infect humans.

HIV uses autophagy for its own means

Mon, 27 Jul 2009 21:20:05 -0500

Not satisfied with simply thwarting its host's defensive maneuvers, HIV actually twists one to its advantage, based on new findings from Kyei et al. in the July 27, 2009 issue of the Journal of Cell Biology (www.jcb.org). Vojo Deretic and colleagues suggest that autophagy—a stress response process—helps HIV to proliferate and that conversely, blocking autophagy lessens HIV production.