Figure 3From: In vitro and in vivo pre-clinical analysis of a F(ab')2 fragment of panitumumab for molecular imaging and therapy of HER1-positive cancers Evaluation of panitumumab F(ab') 2 immunoreactivity in a competition radioimmunoassay. The immunoreactivity of panitumumab F(ab')2 (white circle) for purified EGFR was compared to panitumumab IgG (filled circle). The F(ab')2 of the anti-HER2 mAb, trastuzumab, (downward-pointing filled triangle) was used as a negative control.Back to article page