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A New Study Throws Limelight in HIV Vaccine Production

The research collaborative involving scientists from the British Columbia Centre for Excellence in HIV/AIDS , Massachusetts General Hospital (MGH), Microsoft Research and Los Alamos National Laboratory used highly computer-intensive, cutting-edge statistical research methods to investigate how the HIV virus mutates to escape the bodys immune system.

A pioneering collaborative study has discovered how the HIV virus evades the human bodys immune system. Specifically, HLA class 1 is a controlling part of the human immune response. The ability of HIV to escape recognition by HLA class 1 leaves the body incapable of finding and fighting the virus.

The study, published in the July issue of PLoS Pathogens, is the largest population-based investigation of how natural variations in HLA class 1 can influence HIV genetic sequence, as well as the first characterization of changes in multiple HIV genes in response to HLA-associated evolutionary pressure.

Researchers successfully mapped sites within particular HIV genes where variations can improve the viruss ability to escape immune recognition, showing this is predictable based upon the HIV patients individual HLA class 1 profile.

This is a novel and advanced description of how the human immune system attacks the virus, and how it responds says Dr. Richard Harrigan, Director of the Centres Research Laboratories and study co-author.

While we always knew the body attacks the virus and the virus changes to dodge pressure, were now more exact in knowing how this happens in people.

While the study is valuable in helping the scientific community understand how immune pressure impacts HIV, these findings hold tremendous promise in terms of global HIV efforts, says Dr. Zabrina Brumme, the studys lead author.

Achieving a more in-depth understanding of the ways in which HIV mutates to avoid the human immune system will help with the design of
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