Figure 3

αv-integrin expression profiles change during differentiation. Expression of (A) α6-integrin and (B) αv-integrin were examined by FACS at days 2, 6, 10 and 14 during the differentiation process. The differentiating cells ('dif' red line) were compared to undifferentiated ('33' green line) and fully differentiated cells ('39' red line). α6-integrin expression profiles did not change throughout the time course. αv-integrin expression profiles show an increase at day 6 and are at comparable levels with fully differentiated OC-2 cells at day 14 with an apparent even higher level at day 10.