Figure 2.

GD2 expression on breast cancer cell lines. GD2 expression on indicated breast cancer cell lines was determined by flow cytometry using an APC-labeled GD2 mAb. In a), representative histograms of three individual analyses are shown. GD2 positivity was calculated by Overton subtraction of histograms, sample data minus corresponding isotype control. In b), representative plots SSC vs. GD2 expression of three individual analyses are shown to illustrate GD2 expression in a subpopulation of cells in the cell lines T-47D and MDA-MB-231.