HIV and SIV envelope glycoproteins induce phospholipase A2 activation in human and macaque lymphocytes.
[No authors listed]
摘要
We investigated the early interactions between HIV-1, HIV-2, and simian immunodeficiency virus (SIV) envelope glycoproteins gp120(IIIB), gp105(ROD), and gp120(mac251), and human and macaque cells of the lymphocytic series. Our results demonstrate that the soluble viral glycoproteins induce a specific phospholipase A2 (PLA2) activation in lymphocytes through CD4. This PLA2 activation was induced after envelope glycoprotein-CD4 interaction and, because of its local membrane-destabilizing effect, may have important implications for preparing the lymphocyte membrane for fusion with the viral particle. However, this effect is not sufficient to accomplish fusion. These data indicate that the specific step of fusion may be downstream from PLA2 activation.
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基因功能
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原始数据
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文献解读
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