Analysis of CD63 surface expression.

CD63 expression on the surface of purified peripheral blood eosinophils was examined using flow cytometry analysis. (A) Isotype control for nonpermeabilized cells, (B) isotype control for (0.1%) saponin-permeabilized cells, (C) CD63 expression in nonpermeabilized eosinophils, and (D) CD63 expression in (0.1%) saponin-permeabilized cells.