Research Article

Comparison of 99mTc-Tetrofosmin and 99mTc-Sestamibi Uptake in Glioma Cell Lines: The Role of P-Glycoprotein Expression

Figure 2

Illustration of flow cytometric and KS aspects. (a) Overlay histogram showing cell-surface P-gp protein expression in U251MG (blue line). The negative control antibody (red line) was mouse IgG1. (b) P-gp protein expression was, also, analyzed using the Kolmogorov-Smirnov (KS) statistic test ( value), which allows the objective and accurate identification of small differences in fluorescence intensity. Samples were considered positive when .
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