Recent studies suggest physical and functional interactions of glycosy
lphosphatidylinositol (GPI)-linked proteins (CD14, CD16b and CD87) wit
h leukocyte beta(2) integrins. As discussed in this article, it now ap
pears that beta(2) integrins relay proinflammatory information from GP
I-anchored membrane receptors to the cytoplasm via exodomain interacti
ons.