Figure 1.
Comparative analysis of surface antigen expression among BM Lin− and SC12 Lin− populations. BM and SC12 cell suspensions were labeled with antibodies recognizing Ly5.2 (donor population) and lineage antigens (CD3, CD19, Mac-1, NK1.1, and TCR-αβ). Results show the Ly5.2+ Lin− gated populations, the dotted-lined histogram representing control isotype for anti-IL-7Rα antibody, the thin-lined histograms representing BM and the bold-lined histograms SC12 cells. (A) Forward scatter. (B) Differential expression of cell surface antigens. (C) Selective coexpression of Thy1.1 antigen by SC12 and BM Lin− CD44+ and CD44− populations. Fig. 1 shows one of three independent experiments, all yielding similar results.