the cells were transplanted into the cheek pouch of hamsters and produced an endodermal sinus tumor . alpha-fetoprotein subfractions in the conditioned media were studied by a modified method of lectin affinity crossed-line immunoelectrophoresis , and we found that the haest cells produced concanavalin a nonreactive subfraction , lentil lectin weakly reactive subfraction , phytohemagglutinin-e reactive subfraction and phytohemagglutinin-e nonreactive subfraction , which were predominantly synthesized by the fetal yolk sac , at an early stage of gestation .
C0002210
alpha-fetoprotein
C0015965
fetal