Studies on the Specific Antigens of Human Gastric Cancer. III

抄録

With a view to tracing the specific antigenicity of human gastric cancer a series of experiments were carried out, which essentially consisted of (1) producing antisera in rabbits by injection of saline extracts of human gastric cancer, normal gastric mucosa, and placenta, (2) preparing several purified fractions of the above three kinds of tissue, which were used as antigens for precipitin tests, and (3) performing reciprocal precipitin tests aided by reciprocal absorption tests. It has been demonstrated that the nucleic acid fraction of human gastric cancer presented the highest antigenic specificity, the glucidamin fraction a modertae, and the carbohydrate fraction least specificity.