Immunosuppressive effect of 6-mercaptopurine-riboside. IV. Studies on antibody biosynthesis

The effect of 6.MPR on the antibody formation of rabbits challenged with bovine serum albumin has been studied in comparison with that of 6.MP. Observation revealed that the antibody formation is profoundly suppressed when the animal is treated with 6.MPR in an appropriate dose and period in relation with the introduction of antigen. Discussion was made of the possibility of 6.MPR as a superior therapeutic agent for autoimmune diseases.