A study was made of the immuno-biological properties of three transplantable tumors inoculated into one animal and during prolonged passage through inbred mice.
In studying the cross-immunity caused by immunization into tail (Andervont''s method) there occurred in these tumors changes of immunobiological properties which took place not only at the expense of nonspecific components, but also at the expense of the tumor antigens themselves.
(Presented by Active Member AMN SSSR N. N. Zhukov-Verezhnikov) Translated from Byulleten'' Éksperimental''noi Biologii i Meditsiny, Vol. 54, No. 10, pp. 94–98, October, 1962