Figure 6.

Gold percentage of H460 cells.
Notes: The gold elemental composition of each sample is denoted on the Y-axis. The increase in the gold percentage when cells were exposed to HPRT and CD44 shows a quantifiable increase in the gold present on the outside of the cell. Cells exposed to HPRT antibody had a gold weight of ∼10.4%, which is statistically significant to the IgG controls used for background binding (P=0.0159). These data indicate a statistically significant presence of HPRT on the surface of H460 cells. *P≤0.05; **P≤0.01.
Abbreviation: HPRT, hypoxanthine guanine phosphoribosyltransferase.