Search for embryonic antigens in the serum of leukemia patients

: The authors examined patients with blastic leucosis, myelosis and lympholeucosis for the presence of specific embrional antigens by immunodiffusion, using antisera, obtained after immunization of rabbits with extracts from human embryos and absorbed with tissue extracts from a normal adult. There were no specific embryonal components in the patients with leucemic sera or in the women from the control group.