A SYNTHETIC ADJUVANT EFFECTIVE IN INDUCING ANTITUMOR IMMUNITY

Abstract
Guinea pigs which were injected repeatedly with a mixture of a 3M KCl extract of line 10 tumor and 6-0-(2-tetradecyl-hexadeconoyl)-muramyl-dipeptide (B30-MDP) rejected a tumor graft of line 10. Such an adjuvant effect of B30-MDP was also demonstrated when X-ray-treated line 10 cells were mixed with B30-MDP dissolved in phosphate-buffered saline and inoculated into the animals.