When the scientists infected the so-called “humanized” mice with the HIV virus, the T-cell reaction in the mice was the exact same as that of humans.
Earlier research using rhesus monkeys helped scientists understand how the virus attacks cells. These monkeys were seen as good replacements for humans because they could be easily infected with a primate version of HIV, known as SIV.
However, genetic differences in the two versions of the virus and the immune systems suggested that the monkeys were not the best candidates for HIV research.
Todd Allen says the experiments with the new “humanized” mouse more correctly reflected what happens in humans with the AIDs virus.
TODD ALLEN: “So it allows us to take all the discoveries we’ve had in studying individuals infected with HIV in the different immune responses and host genetics that correlate with a better outcome, and translate that now into an animal model where we can actually further manipulate that to understand exactly how these individuals are doing that.”
Mr. Allen and the other researchers hope further studies with the “humanized” mouse will lead to an HIV vaccine.
And that's the VOA Special English Technology Report, Jessica Berman and June Simms, contributing. I'm Steve Ember.
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