Table 1.

Cleaved Caspase-3 and PI staining as a function of anti-CD9, HB-EGF and EGF treatment of mouse embryonic stem cells

	Anti-CD9	Anti-CD9 (%)	Anti-CD9 + HB-EGF	HB-EGF + EGF	EGF	Control
Cleaved caspase-3	80 ± 3.6	31 ± 2.1	42 ± 1.0	6 ± 0.3	7 ± 0.5	5 ± 0.8
PI	78 ± 4.2	31 ± 4.0	50 ± 2.2	11 ± 1.7	15 ± 1.7	11 ± 3.4

Data are presented as the percentage of cells which are positive for cleaved caspase-3 and PI. Comparisons between groups were determined using Tukey multiple comparison tests, using cell counts from n = 3 independent experiments (p < 0.05).