Wednesday, August 11, 2004
Dance of the X Receptors
Researchers have discovered another classic example of The Red Queen hypothesis of immunity: patients who contract HIV, but go for long periods of time without developing symptoms, have rare forms of HLA's, which attract killer T cells to infected sites. Since these versions are rare, HIV has not had the chance to adapt to counter them, as it has the more common versions seen in patients who progress quickly to full-blown AIDS. This is really cool.
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