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. 2015 Aug 19;10(4):1602–1608. doi: 10.3892/etm.2015.2692

Figure 4.

Figure 4.

Effect of EESB on HT-29 cell apoptosis. Cells were pretreated with various concentration of EESB for 1 h, followed by stimulation with 10 ng/ml IL-6 for 24 h. (A) Cells were collected and stained with Annexin V/PI, followed by fluorescence-activated cell sorting analysis. Double-negative stained cells indicate the live cell population; Annexin V-positive/PI-negative stained cells and Annexin V/PI double-positive stained cells represent early and late apoptosis, respectively; Annexin V-negative and PI-positive stained cells show dead cells. (B) Quantification of fluorescence-activated cell sorting analysis. The data shown are averages with standard deviation from 3 independent experiments. #P<0.05 vs. cells treated with IL-6 but not EESB. EESB, ethanol extract of Scutellaria barbata D. Don; IL-6, interleukin-6; UL, upper left; UR, upper right; LR, lower right; LL, lower left; PI, propidium iodide; FITC, fluorescein isothiocyanate.