from the results obtained in this study , four differentiation inducible populations and one non inducible fraction were separated : ( 1 ) the most immature thymocytes might be fraction 1 rosette forming cells ( fr . 1-frc ) characterized by low buoyant density , ability to form rosette , high spontaneously proliferating activity , low response to con a , and the differentiation inducibility .
C0007634
cells
C0007589
differentiation