Expression of fetal antigens and tumor‐specific antigens in SV40‐transformed cells. I. Serological analysis of the antigenic specificities

The fetal antigens expressed in a variety of tumors have previously been shown to be different from tumor‐specific antigens. The present study on the expression of fetal antigens in various SV40‐transformed cells showed that more than one fetal antigen may be found in these cell lines, and that the expression of fetal antigens was not directly related to the function of the SV40 genome. These fetal antigens were not found in syngeneic spleen cells but were found in the normal spleens of some other strains of mice.