Figure 2. Fetal CD140a/O4-defined OPCs drive Sox10-MCS5 enhancer activity.
Unsorted human fetal brain dissociates, 19–22 weeks gestational age, were infected with single Sox10 reporter virus 7–8 hours following plating. Multicolor flow cytometry performed was 3–4 days post-infection with CD140a and O4 (n=3, fetal brain preparations). A–B, Representative dot plots and cell-type incidence (%) showing GFP reporter expression (x-axis) plotted against CD140a-PE (A) or O4-APC (B) fluorescence (y-axes) (19 week, 10,000 events shown). C, mean GFP fluorescence intensity among individual CD140a/O4 defined cell populations following normalization to CD140a−O4− cell intensity (n=3, mean ± SEM). * indicates significantly higher GFP expression among CD140a+O4+ defined OPCs (p<0.05, Tukey’s multiple comparison test p-value vs. double negative cells).