Gene Therapy Can Protect Against HIV
By Lauren Gravitz,
Nature News
| 11. 30. 2011
An introduced gene conveys long-lived resistance to HIV infection in mice.
Gene therapy, an approach most commonly explored for curing chronic genetic diseases such as cystic fibrosis, may also prove practical for disease prevention. In research published today in Nature,1 scientists in California show that a single injection — which inserted the DNA for an HIV-neutralizing antibody into the muscle cells of live mice — completely protected the animals against HIV transmission.
The road to a vaccine against HIV has proved to be far longer than originally anticipated. More than 2 million adults are newly infected with HIV every year and, nearly three decades after the virus was first identified, researchers haven’t found a reliable way to prevent infection. The classic vaccine approach, which uses all or part of an inactivated virus to induce immunity, has yielded little success because HIV has managed to disguise most of the easily-recognised external structures that antibodies would target. Researchers have thus had a tough time finding a molecule that can induce even moderately broad responses against the virus in all its different mutations. So although it might sound extreme to use gene...
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