AIDS/HIV Breakthrough! : say US and Chinese scientist


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NEW YORK (Reuters Health) - In a discovery that raises the possibility of a new approach for treating HIV, the virus that causes AIDS, scientists have identified a cluster of naturally occurring proteins that seem to keep the virus from reproducing.

HIV researchers have long been interested in "long-term non-progressors," people who are infected with HIV but live for years or even decades without developing AIDS. Scientists have been studying long-term non-progressors to try to find out how their immune systems fend off HIV so well.

Back in 1986, researchers found that in some people with HIV, immune cells called CD8 T-cells released a molecule that suppresses HIV replication. This molecule is most abundant in people with HIV who are in relatively good health, particularly long-term non-progressors. Scientists dubbed the molecule CD8 antiviral factor, or CAF, but its true identity has been elusive.

Now, a team led by Dr. David D. Ho of the Aaron Diamond AIDS Research Center in New York reports that it has identified a cluster of proteins that seems to account for much of CAF's anti-HIV effect.

http://abcnews.go.com/wire/Living/reuters2...020926_537.html

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