Table 1.

Progenitor count per E8.5 or E9.5 embryo proper cultured in the presence or absence of 50 ng/mL Tpo

E8.5 embryo properE9.5 embryo proper
−Tpo+Tpo−Tpo+Tpo
EryP 46.0 ± 2.1 31.7 ± 2.2 0 ± 0 0 ± 0 
BFU-E 0 ± 0 0 ± 0 12.0 ± 1.4 6.0 ± 1.1 
Mix 0.63 ± 0.32 0.63 ± 0.32 14.2 ± 3.7 13.1 ± 6.0 
GM 0.32 ± 0.32 0 ± 0 27.4 ± 8.5 15.4 ± 4.0 
CFU-Meg 0 ± 0 0.48 ± 0.48 7.1 ± 2.8 14.2 ± 5.7 
BFU-Meg 0 ± 0 0 ± 0 7.1 ± 2.8 17.9 ± 4.6 
E8.5 embryo properE9.5 embryo proper
−Tpo+Tpo−Tpo+Tpo
EryP 46.0 ± 2.1 31.7 ± 2.2 0 ± 0 0 ± 0 
BFU-E 0 ± 0 0 ± 0 12.0 ± 1.4 6.0 ± 1.1 
Mix 0.63 ± 0.32 0.63 ± 0.32 14.2 ± 3.7 13.1 ± 6.0 
GM 0.32 ± 0.32 0 ± 0 27.4 ± 8.5 15.4 ± 4.0 
CFU-Meg 0 ± 0 0.48 ± 0.48 7.1 ± 2.8 14.2 ± 5.7 
BFU-Meg 0 ± 0 0 ± 0 7.1 ± 2.8 17.9 ± 4.6