Gp. Potebnya et al., Modifying effect of Bacillus subtilis AB-56 metabolism products on the immunogenecity of tumor cells, EXP ONCOL, 21(3-4), 1999, pp. 223-226
The effect:of culture medium filtrate of B. subtilis AB-56 on the immunogen
ecity of mouse sarcoma 37 cells was studied. A significant increase in the
antitumor antibody level was observed after inoculation of tumor cells trea
ted with filtrate for 1 hour. An increased immune response has been detecte
d also,with mixed tumor cells and filtrate. The discovered phenomena is sug
gested to play an important role in the induction of antitumor immunity.