Figure 2From: Efficient in vivo antitumor effect of an immunotoxin based on ribotoxin α-sarcin in nude mice bearing human colorectal cancer xenografts IMTXA33 α S-treated tumors show lack of GPA33 antigen in vivo . A) GPA33-positive cells (green). Scale bars: 50 μm. B) Quantification of GPA33-positive cells. Statistical analysis of IMTX50 or IMTX100-treated tumors vs vehicle-treated tumors rendered p <0.001.Back to article page