Research Article

Celecoxib-Induced Modulation of Colon Cancer CD133 Expression Occurs through AKT Inhibition and Is Monitored by 89Zr Immuno-PET

Figure 2

Colon cancer cell binding and pharmacokinetic properties of 89Zr-CD133 IgG. (a) Western blotting of CD133 protein in various colon cancer cell lines (top) and 89Zr-CD133 IgG binding to high-expressing HT29 and low-expressing HCT116 human colon cancer cells (bottom). (b) Specificity of binding was assessed by blocking with excess cold anti-CD133 IgG. Bars are of % incubation dose obtained from a single representative experiment with triplicate samples. .
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