Figure 4From: Spica prunellae promotes cancer cell apoptosis, inhibits cell proliferation and tumor angiogenesis in a mouse model of colorectal cancer via suppression of stat3 pathway Effect of EESP on cell apoptosis, proliferation and angiogenisis in CRC mice. At the end of the experiment, tumor tissues from control and EESP-treated group were processed for immunohistochemical staining for TUNEL, PCNA or CD31. The photographs are representative images taken at a magnification of 400 ×. Quantification of immunohistochemical assay was represented as percentage of positively-stained cells. Data shown are averages with S.D. (error bars) from 9 individual mouse in each group. *P< 0.01, versus controls.Back to article page